@font-face{font-family:GochiHand;src:url('./fonts/GochiHand.woff2') format('woff2');font-display:swap}
@font-face{font-family:Cubic;src:url('./fonts/Cubic_11.woff2') format('woff2');font-display:swap}
/* Display lettering: Smiley Sans (得意黑), SIL Open Font License 1.1. */
@font-face{font-family:SmileySans;src:url('./fonts/SmileySans-Oblique.woff2') format('woff2');font-style:oblique;font-weight:400;font-display:swap}
@font-face{font-family:ZcoolKuaile;src:url('./fonts/ZCOOLKuaiLe-Regular.ttf') format('truetype');font-weight:400;font-style:normal;font-display:swap}
:root{--paper:#f2eedf;--sheet:#fbf9f0;--ink:#151713;--muted:#555a50;--rule:#c9c5b7;--action:#c8ff32;--blue:#2457e6;--error:#b42318;--shadow:0 18px 48px rgba(40,37,27,.13);--radius:14px;--ease:cubic-bezier(.16,1,.3,1)}
*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:clip}
body{margin:0;background:var(--paper);color:var(--ink);font:400 16px/1.5 -apple-system,BlinkMacSystemFont,"SF Pro Text","PingFang SC","Microsoft YaHei UI","Microsoft YaHei",sans-serif;accent-color:var(--ink)}
button,input{font:inherit}
button{color:inherit}
button:focus-visible,input:focus-visible,a:focus-visible{outline:3px solid var(--blue);outline-offset:4px}
::selection{background:var(--action);color:var(--ink)}
.visually-hidden{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}
.term{position:relative;display:inline-block;border-bottom:1px dotted currentColor;cursor:help;text-decoration:none}.term::after{content:attr(data-tooltip);position:absolute;z-index:30;right:0;bottom:calc(100% + 10px);width:min(280px,80vw);padding:10px 12px;background:var(--blue);color:#fff;border-radius:8px;font:400 .78rem/1.45 system-ui,"Microsoft YaHei UI",sans-serif;letter-spacing:0;text-align:left;text-transform:none;box-shadow:0 8px 24px rgba(21,23,19,.2);opacity:0;pointer-events:none;transform:translateY(6px);transition:opacity .16s var(--ease),transform .16s var(--ease)}.term::before{content:"";position:absolute;z-index:31;left:50%;bottom:calc(100% + 4px);border:6px solid transparent;border-top-color:var(--blue);opacity:0;transform:translateX(-50%);transition:opacity .16s var(--ease)}.term:hover::after,.term:hover::before,.term:focus-visible::after,.term:focus-visible::before{opacity:1}.term:hover::after,.term:focus-visible::after{transform:translateY(0)}.term-heading{font:inherit}.term-dark::after{bottom:auto;top:calc(100% + 12px)}.term-dark::before{bottom:auto;top:calc(100% + 1px);border-top-color:transparent;border-bottom-color:var(--blue)}.term-button{border-bottom-color:currentColor}
.skip-link{position:fixed;left:16px;top:12px;z-index:20;transform:translateY(-160%);opacity:0;pointer-events:none;background:var(--ink);color:#fff;padding:10px 14px;border-radius:8px}.skip-link:focus-visible{transform:none;opacity:1;pointer-events:auto}
.masthead{min-height:76px;border-bottom:1px solid var(--ink);display:flex;align-items:center;gap:24px;padding:12px clamp(18px,4vw,64px)}
.wordmark{font:clamp(1.55rem,3vw,2.4rem)/1 GochiHand,system-ui,sans-serif;letter-spacing:.02em;text-decoration:none;color:inherit;margin-right:auto}
.prototype-mark{font:600 .75rem/1 Cubic,monospace;letter-spacing:.08em;text-transform:uppercase}
.sound-gate,.primary-button{min-height:48px;border:1px solid var(--ink);border-radius:12px;background:var(--action);box-shadow:0 5px 0 var(--ink);padding:0 18px;font-weight:600;display:inline-flex;align-items:center;gap:10px;cursor:pointer;transition:transform .18s var(--ease),box-shadow .18s var(--ease)}
.sound-gate:hover,.primary-button:hover{transform:translateY(-2px);box-shadow:0 7px 0 var(--ink)}
.sound-gate:active,.primary-button:active{transform:translateY(3px);box-shadow:0 2px 0 var(--ink)}
.sound-gate svg{width:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.tour-replay{margin-left:auto;border:0;border-bottom:1px solid currentColor;background:transparent;padding:8px 2px;cursor:pointer}.sound-gate{margin-left:0}
main{width:min(1520px,calc(100% - clamp(28px,6vw,96px)));margin:0 auto 80px}
.workspace-bar{position:sticky;z-index:24;top:0;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:22px;margin:18px 0 28px;padding:14px 18px;background:var(--ink);color:#fff;border-radius:12px;box-shadow:0 12px 28px rgba(21,23,19,.16)}.workspace-bar[hidden]{display:none}.workspace-back{min-height:44px;padding:0 14px;border:1px solid #6d736b;border-radius:8px;background:transparent;color:#fff;font-weight:600;cursor:pointer}.workspace-back span{margin-right:7px;font-size:1.15rem}.workspace-bar>div{display:grid;gap:2px}.workspace-bar>div span,.workspace-mode{font:600 .66rem/1.3 Cubic,monospace;letter-spacing:.08em;color:#aeb5ac}.workspace-bar>div strong{font-size:1rem}.workspace-mode{color:var(--action);text-align:right}
body:not(.course-open) .count-sheet,body:not(.course-open) .lesson,body:not(.course-open) .phrase-lesson,body:not(.course-open) .orientation-guide,body:not(.course-open) .console-mode-bar,body:not(.course-open) .mixer,body:not(.course-open) .proof,body:not(.course-open) .free-mix{display:none!important}body:not(.course-open) .tour-replay{display:none}.course-open .intro,.course-open .course-catalog{display:none}.course-open main{min-height:calc(100vh - 76px);animation:app-screen-in .3s var(--ease) both}.course-open .proof{display:none}.app-course-phrase .count-sheet,.app-course-phrase .orientation-guide,.app-course-phrase .console-mode-bar,.app-course-phrase .mixer,.app-course-phrase .free-mix{display:none!important}.app-course-phrase .phrase-lesson{min-height:calc(100vh - 190px);margin:0;align-items:center}@keyframes app-screen-in{from{opacity:.25;transform:translateY(12px)}to{opacity:1;transform:none}}
.intro{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(270px,.6fr);gap:clamp(28px,7vw,120px);align-items:end;padding:clamp(54px,8vw,112px) 0 48px}
.intro h1{font:clamp(3.4rem,8vw,8.2rem)/.91 system-ui,"Microsoft YaHei UI",sans-serif;letter-spacing:-.035em;margin:0;max-width:11ch;text-wrap:balance}
.launch-title-art{display:none}
.intro-copy p{font-size:clamp(1rem,1.4vw,1.25rem);max-width:46ch;margin:30px 0 0}
.session-ticket{border-top:3px solid var(--ink);border-bottom:1px solid var(--ink);display:grid;grid-template-columns:64px minmax(0,1fr);gap:12px 18px;padding:18px 0;font-size:.78rem;text-transform:uppercase;letter-spacing:.06em}.session-ticket strong{text-align:right;font-size:.9rem;overflow-wrap:anywhere}
.course-catalog{display:grid;grid-template-columns:minmax(230px,.7fr) minmax(0,1.3fr);gap:clamp(28px,6vw,90px);padding:34px 0 54px;border-top:1px solid var(--ink)}
.course-heading h2{font-size:clamp(1.8rem,3vw,3rem);line-height:1;margin:0}.course-heading p{max-width:38ch;color:var(--muted);margin:16px 0 0}
.course-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--ink)}.course-list li{border-bottom:1px solid var(--rule)}.course-list button,.course-list li>div{width:100%;display:grid;grid-template-columns:48px minmax(0,1fr) auto;gap:16px;align-items:center;padding:17px 8px;border:0;background:transparent;text-align:left}.course-list button{cursor:pointer}.course-list button:hover{background:var(--sheet)}.course-list li.is-current button{background:var(--action)}.course-number{font:1rem/1 Cubic,monospace}.course-list strong,.course-list small{display:block}.course-list strong{font-size:1rem}.course-list small{margin-top:3px;color:var(--muted);font-size:.78rem}.course-state{font:600 .7rem/1 Cubic,monospace;white-space:nowrap}.course-list .is-upcoming{opacity:.55}.course-list .is-upcoming .course-state{color:var(--muted)}
.course-list li.is-current small{color:#11140b}
.count-sheet{display:grid;grid-template-columns:100px 1fr 150px;align-items:stretch;border:1px solid var(--ink);background:var(--sheet)}
.count-label,.count-status{display:grid;place-items:center;font:600 .72rem/1 Cubic,monospace;letter-spacing:.08em;text-transform:uppercase;padding:14px}.count-label{border-right:1px solid var(--ink)}.count-status{border-left:1px solid var(--ink);text-align:center}
.count-grid{display:grid;grid-template-columns:repeat(8,1fr)}.count-grid span{min-height:58px;display:grid;place-items:center;border-right:1px solid var(--rule);font:1.25rem/1 Cubic,monospace}.count-grid span:last-child{border:0}.count-grid span.is-beat{background:var(--action)}
.lesson{margin:40px auto 34px;display:grid;grid-template-columns:minmax(220px,.7fr) minmax(320px,1.3fr) auto;gap:30px;padding:28px 32px;background:var(--sheet);border-radius:var(--radius);box-shadow:var(--shadow);align-items:center}
.active-course{grid-column:1/-1;margin:0 0 -12px;font:600 .72rem/1 Cubic,monospace;letter-spacing:.08em;color:var(--blue)}
.lesson-progress{display:grid;grid-template-columns:repeat(8,1fr);gap:3px}.lesson-progress span{padding:8px 6px;border-top:3px solid var(--rule);font-size:.72rem;color:var(--muted)}.lesson-progress .is-current{border-color:var(--action);color:var(--ink);font-weight:600}.lesson-progress .is-done{border-color:var(--ink);color:var(--ink)}
.step-name{font:600 .72rem/1 Cubic,monospace;letter-spacing:.08em;margin:0 0 8px}.lesson h2{font-size:clamp(1.3rem,2.4vw,2rem);line-height:1.1;margin:0}.lesson-copy>p:last-child{margin:8px 0 0;color:var(--muted)}.lesson-actions{display:flex;flex-direction:column;gap:8px;max-width:320px}.text-button{min-height:44px;background:transparent;border:0;border-bottom:1px solid var(--ink);cursor:pointer;padding:8px 4px;text-align:left}.coach-message{margin:4px 0 0;padding:10px 0;color:var(--blue);font-size:.88rem;border-top:1px solid var(--rule)}
.mixer{display:grid;grid-template-columns:minmax(0,1fr) 200px minmax(0,1fr);gap:18px;align-items:stretch}
.deck{background:var(--sheet);border:1px solid var(--ink);border-radius:var(--radius);padding:clamp(18px,2.5vw,32px);min-width:0}.deck-head{display:flex;align-items:end;justify-content:space-between;gap:18px}.deck-head p{font:600 .72rem/1 Cubic,monospace;letter-spacing:.1em;text-transform:uppercase;margin:0 0 9px}.deck-head h2{font-size:clamp(1.6rem,2.8vw,2.5rem);line-height:1;margin:0}.deck-head h2 span{display:block;color:var(--muted);font:400 .88rem/1.4 system-ui,"Microsoft YaHei UI",sans-serif;margin-top:8px}.deck-head output{font:1rem/1 Cubic,monospace}
.wave{position:relative;height:112px;margin:28px 0 22px;border-block:1px solid var(--rule);overflow:hidden}.wave canvas{display:block;width:100%;height:100%}.wave i{position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--blue);transform:translateX(-2px)}
.transport-row{display:flex;align-items:center;gap:12px}.play-button,.sync-button{min-height:48px;border:1px solid var(--ink);background:transparent;border-radius:12px;padding:0 16px;display:inline-flex;align-items:center;gap:9px;font-weight:600;cursor:pointer}.play-button svg{width:18px;fill:currentColor}.play-button.is-playing{background:var(--ink);color:var(--sheet)}.play-button.is-next,.sync-button.is-next{background:var(--action);box-shadow:0 4px 0 var(--ink)}.sync-button{margin-left:auto}.deck-meta{min-width:48px;text-align:center}.deck-meta span{display:block;font:1.1rem/1 Cubic,monospace}.deck-meta small{font-size:.7rem;letter-spacing:.08em}
.control-bank{display:grid;grid-template-columns:1.25fr repeat(3,1fr);gap:14px;margin-top:26px;padding-top:22px;border-top:1px solid var(--rule);position:relative}.control-bank label{display:grid;grid-template-columns:1fr auto;gap:10px;font-size:.72rem;font-weight:600}.control-bank output{font-family:Cubic,monospace;font-weight:400}.control-bank input{grid-column:1/-1;width:100%}.advanced-controls.is-locked{opacity:.34}.advanced-controls.is-locked::after{content:attr(data-locked-label);position:absolute;inset:0;display:grid;place-items:center;background:rgba(251,249,240,.82);font-size:.78rem;font-weight:700;text-align:center}
input[type=range]{appearance:none;height:28px;background:transparent;cursor:pointer}input[type=range]::-webkit-slider-runnable-track{height:4px;background:var(--ink);border-radius:2px}input[type=range]::-webkit-slider-thumb{appearance:none;width:22px;height:22px;border:2px solid var(--ink);border-radius:50%;background:var(--sheet);margin-top:-9px}input[type=range]::-moz-range-track{height:4px;background:var(--ink)}input[type=range]::-moz-range-thumb{width:20px;height:20px;border:2px solid var(--ink);border-radius:50%;background:var(--sheet)}
input[type=range].is-next{filter:drop-shadow(0 0 5px var(--action))}input[type=range].is-next::-webkit-slider-thumb{background:var(--action)}input[type=range].is-next::-moz-range-thumb{background:var(--action)}
.handoff{display:flex;flex-direction:column;justify-content:center;align-items:center;background:var(--ink);color:var(--sheet);border-radius:var(--radius);padding:24px 18px;transition:opacity .2s var(--ease)}.handoff.is-locked{opacity:.4}.handoff-title,.handoff-scale{width:100%;display:flex;justify-content:space-between;align-items:center}.handoff-title strong{font:600 .72rem/1 Cubic,monospace;letter-spacing:.08em}.handoff>input{width:100%;margin:30px 0 10px;accent-color:var(--action)}.handoff input::-webkit-slider-runnable-track{background:var(--sheet)}.handoff input::-webkit-slider-thumb{background:var(--action);border-color:var(--sheet)}.handoff-scale{font-size:.7rem;color:#d9d7ce;gap:6px}.handoff-scale span{padding:4px 6px;border-radius:4px;text-align:center}.handoff-scale .is-current{background:var(--action);color:var(--ink);font-weight:700}.handoff output{margin-top:22px;min-height:68px;display:grid;place-items:center;text-align:center;font-weight:600;color:var(--action);line-height:1.35}
.proof{margin-top:34px;border-top:1px solid var(--ink);border-bottom:1px solid var(--ink);padding:30px 0;display:grid;grid-template-columns:1fr 1.7fr;gap:40px}.proof h2{font-size:1.2rem;margin:0 0 6px}.proof p{color:var(--muted);margin:0}.proof dl{display:grid;grid-template-columns:repeat(4,1fr);margin:0}.proof dl div{border-left:1px solid var(--rule);padding-left:18px}.proof dt{font-size:.72rem;color:var(--muted)}.proof dd{font:1rem/1.3 Cubic,monospace;margin:8px 0 0}
.free-mix{margin-top:42px;padding:clamp(26px,4vw,48px);background:var(--sheet);border:1px solid var(--ink);border-radius:var(--radius);display:grid;grid-template-columns:minmax(240px,.8fr) minmax(320px,1.2fr);gap:32px}.free-mix[hidden]{display:none}.free-mix h2{font-size:clamp(1.8rem,3.5vw,3rem);line-height:1;margin:0 0 14px}.free-mix p{margin:0;max-width:58ch}.free-mix-limit{color:var(--muted);font-size:.88rem;margin-top:12px!important}.import-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.file-import{min-height:180px;border:1px dashed var(--ink);border-radius:12px;padding:20px;display:flex;flex-direction:column;justify-content:space-between;font-weight:700;cursor:pointer}.file-import:focus-within{outline:3px solid var(--blue);outline-offset:3px}.file-import>input[type=file]{width:100%;margin:14px 0}.file-import>span{color:var(--muted);font-size:.78rem;font-weight:400;overflow-wrap:anywhere}.bpm-correction{display:flex;align-items:center;justify-content:space-between;gap:10px;border-top:1px solid var(--rule);padding-top:12px}.bpm-correction input{width:86px;min-height:38px;border:1px solid var(--ink);border-radius:8px;background:var(--sheet);padding:0 8px;font:1rem Cubic,monospace}.free-mix>.text-button{grid-column:1/-1;width:max-content}
.success-sheet{position:fixed;inset:0;z-index:50;background:rgba(25,21,30,.24);display:grid;place-items:center;padding:24px;-webkit-backdrop-filter:blur(5px) saturate(90%);backdrop-filter:blur(5px) saturate(90%)}.success-sheet[hidden]{display:none}.success-inner{position:relative;background:var(--action);border-radius:16px;box-shadow:0 24px 80px rgba(0,0,0,.28);padding:clamp(34px,6vw,70px);width:min(680px,100%);-webkit-backdrop-filter:none;backdrop-filter:none}.success-inner>p:first-of-type{font:600 .75rem/1 Cubic,monospace;letter-spacing:.1em}.success-inner h2{font:clamp(2.4rem,6vw,5.6rem)/.95 system-ui,"Microsoft YaHei UI",sans-serif;letter-spacing:-.03em;margin:18px 0}.success-inner>p:not(:first-of-type){max-width:52ch}.close-button{position:absolute;right:18px;top:18px;width:48px;height:48px;border:1px solid var(--ink);border-radius:50%;background:transparent;font-size:1.7rem;cursor:pointer}.primary-button{background:var(--sheet);margin-top:20px}
.tour-panel{position:fixed;z-index:70;left:50%;bottom:clamp(18px,4vw,46px);transform:translateX(-50%);width:min(560px,calc(100% - 32px));background:var(--action);color:var(--ink);padding:24px 26px;border-radius:var(--radius);box-shadow:0 24px 70px rgba(0,0,0,.32)}.tour-panel[hidden]{display:none}.tour-panel>p:first-child{font:600 .72rem/1 Cubic,monospace;letter-spacing:.08em;margin:0 0 10px}.tour-panel h2{font-size:clamp(1.35rem,3vw,2rem);line-height:1.1;margin:0}.tour-panel>p:not(:first-child){margin:10px 0 0;max-width:52ch}.tour-actions{display:flex;justify-content:space-between;align-items:end;gap:18px;margin-top:18px}.tour-actions .primary-button{border:1px solid var(--ink);padding:12px 20px;margin:0;cursor:pointer}.tour-actions .text-button{min-width:110px}.tour-active::after{content:"";position:fixed;inset:0;z-index:40;background:rgba(21,23,19,.74);pointer-events:auto}.tour-target{position:relative!important;z-index:45!important;pointer-events:none!important;box-shadow:0 0 0 6px var(--action),0 24px 60px rgba(0,0,0,.28)!important;opacity:1!important}.tour-active{overflow:hidden}
body.audio-ready .sound-gate{background:var(--sheet);box-shadow:none}body.audio-ready .sound-gate svg{fill:var(--ink)}
@media(max-width:1050px){.mixer{grid-template-columns:1fr 1fr}.handoff{grid-column:1/-1;grid-row:2;min-height:170px}.proof{grid-template-columns:1fr}.lesson{grid-template-columns:1fr 1.6fr}.lesson-actions{grid-column:1/-1;flex-direction:row}.text-button{flex:1}.control-bank{grid-template-columns:repeat(2,1fr)}}
@media(max-width:700px){.masthead{gap:12px}.prototype-mark{display:none}.sound-gate{padding:0 12px}.intro{grid-template-columns:1fr;padding-top:58px}.intro h1{font-size:clamp(2.35rem,10.5vw,2.75rem);line-height:1.12;letter-spacing:0;max-width:none}.intro-copy p{margin-top:22px}.session-ticket strong{font-size:.78rem}.course-catalog{grid-template-columns:1fr;padding-top:28px}.course-list button,.course-list li>div{grid-template-columns:38px minmax(0,1fr)}.course-state{grid-column:2}.count-sheet{grid-template-columns:1fr}.count-label,.count-status{display:none}.lesson{grid-template-columns:1fr;padding:22px}.active-course{order:0;margin-bottom:2px}.lesson-progress{order:2;overflow-x:auto}.lesson-progress span{min-width:76px}.lesson-copy{order:1}.lesson-actions{order:3}.mixer{grid-template-columns:1fr}.handoff{grid-column:1;grid-row:auto;min-height:180px}.deck-b{grid-row:3}.proof dl{grid-template-columns:1fr 1fr;gap:24px}.proof dl div:nth-child(odd){border:0}.control-bank{gap:18px}.count-grid span{min-height:48px}.free-mix{grid-template-columns:1fr}.import-grid{grid-template-columns:1fr}.tour-replay{font-size:.78rem}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}

/* Professional controller surface — equipment logic with beginner guidance layered above it. */
.mixer{position:relative;grid-template-columns:minmax(0,1fr) 240px minmax(0,1fr);gap:2px;padding:10px;background:#090b0d;border:1px solid #090b0d;border-radius:16px;box-shadow:0 24px 60px rgba(17,18,15,.24);color:#f5f7f2}
.deck{position:relative;background:#171a1d;color:#f5f7f2;border:1px solid #343a3e;border-radius:10px;padding:clamp(18px,2vw,28px);box-shadow:inset 0 1px 0 rgba(255,255,255,.06)}
.deck-head{min-height:58px}.deck-head p,.deck-head h2 span{color:#9da6a2}.deck-head output{color:var(--action);font-size:1.08rem}
.platter{display:grid;place-items:center;margin:24px auto 8px}.platter-ring{position:relative;width:clamp(150px,17vw,220px);aspect-ratio:1;border:12px solid #0b0d0f;border-radius:50%;display:grid;place-items:center;background:#262b2f;box-shadow:inset 0 0 0 1px #51595e,inset 0 0 0 15px #16191b,0 9px 18px rgba(0,0,0,.35)}.platter-ring::before,.platter-ring::after{content:"";position:absolute;border-radius:50%;inset:26%;border:1px solid #5a6266}.platter-ring::after{inset:39%;background:#0e1012;border-color:#747d80}.platter-ring span{position:relative;z-index:2;font:clamp(2.1rem,4vw,3.7rem)/1 Cubic,monospace;color:var(--action)}.platter-ring i{position:absolute;left:50%;top:5px;width:3px;height:16px;background:var(--action);transform-origin:50% calc(clamp(150px,17vw,220px)/2 - 5px)}.platter small{margin-top:9px;color:#7f8985;font:600 .62rem/1 Cubic,monospace;letter-spacing:.13em}
.deck:has(.play-button.is-playing) .platter-ring i{animation:platter-spin 2s linear infinite}@keyframes platter-spin{to{transform:rotate(360deg)}}
.wave{height:82px;margin:18px 0;border-color:#3d4447;background:#0c0e10}.wave canvas{filter:invert(1) opacity(.75)}.wave i{background:var(--action)}
.transport-row{min-height:58px}.play-button,.sync-button{color:#f5f7f2;border-color:#697277;background:#252a2e;border-radius:7px;box-shadow:inset 0 1px 0 rgba(255,255,255,.08)}.play-button.is-playing{background:var(--action);color:#0b0d0f}.play-button.is-next,.sync-button.is-next{background:var(--action);color:#0b0d0f;box-shadow:0 0 0 2px #0b0d0f,0 0 0 4px var(--action)}.deck-meta{padding:7px 8px;background:#0e1012;border:1px solid #343a3e;border-radius:6px}.deck-meta small{color:#9da6a2}
.control-bank{margin-top:18px;padding:22px 8px 6px;border-color:#3d4447;min-height:156px;gap:10px}.control-bank label{position:relative;grid-template-columns:1fr;text-align:center;color:#c8cecb}.control-bank output{order:2;color:var(--action);margin-top:2px}.control-bank input{order:1;height:54px;transform:rotate(-90deg);width:54px;margin:8px auto 2px}.control-bank input[type=range]::-webkit-slider-runnable-track{background:#727b7f}.control-bank input[type=range]::-webkit-slider-thumb{background:#d9dedb;border-color:#090b0d}.advanced-controls.is-locked::after{background:rgba(23,26,29,.9);color:#f5f7f2}
.handoff{border:1px solid #343a3e;border-radius:10px;background:#111416;color:#f5f7f2;padding:22px 16px;box-shadow:inset 0 1px 0 rgba(255,255,255,.05)}.handoff::before{content:"2 CHANNEL MIXER";font:600 .62rem/1 Cubic,monospace;letter-spacing:.12em;color:#7f8985;margin-bottom:28px}.handoff-title{padding:13px 10px;border:1px solid #353b3f;border-radius:6px;background:#090b0d}.handoff>input{margin-top:auto}.handoff output{min-height:82px;font-size:.83rem}.handoff-scale{margin-bottom:24px}
@media(max-width:1050px){.mixer{grid-template-columns:1fr 1fr}.handoff{grid-column:1/-1;grid-row:2;min-height:220px}.handoff::before{margin-bottom:12px}.platter-ring{width:min(190px,36vw)}}
@media(max-width:700px){.mixer{grid-template-columns:1fr;padding:6px}.handoff{grid-column:1;grid-row:auto}.platter-ring{width:170px}.deck-b{grid-row:3}}

.orientation-guide{display:none}.orientation-guide[hidden]{display:none!important}.console-mode-bar{display:flex;align-items:center;gap:18px;margin:0 0 10px;padding:0 4px}.console-mode-bar>span{margin-right:auto;font:600 .68rem/1 Cubic,monospace;letter-spacing:.1em;text-transform:uppercase}.console-mode-bar .text-button{min-height:36px;padding-block:4px}
.lesson[hidden],.phrase-lesson[hidden],.phrase-success[hidden]{display:none}.phrase-lesson{margin:40px 0 34px;display:grid;grid-template-columns:minmax(260px,.62fr) minmax(420px,1.38fr);gap:clamp(28px,5vw,72px);padding:clamp(26px,4vw,48px);background:var(--sheet);border-top:1px solid var(--ink);border-bottom:1px solid var(--ink)}.phrase-copy>p:first-child{font:600 .72rem/1.4 Cubic,monospace;color:var(--blue);letter-spacing:.08em}.phrase-copy h2{font-size:clamp(2rem,4vw,4.4rem);line-height:1.08;letter-spacing:-.025em;margin:18px 0}.phrase-copy>p{max-width:48ch;color:var(--muted);line-height:1.8}.phrase-purpose{margin-top:24px;padding-top:18px;border-top:1px solid var(--rule);color:var(--ink)!important}.phrase-purpose strong{color:var(--blue)}.phrase-stage{align-self:center}.phrase-bars{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--ink)}.phrase-bars>div{display:grid;grid-template-columns:repeat(4,1fr);border-right:1px solid var(--ink)}.phrase-bars>div:last-child{border-right:0}.phrase-bars b{grid-column:1/-1;padding:7px 8px;border-bottom:1px solid var(--rule);font-size:.72rem;text-align:center}.phrase-bars span{display:grid;place-items:center;min-height:52px;border-right:1px solid var(--rule);font:1rem/1 Cubic,monospace}.phrase-bars span:last-child{border-right:0}.phrase-bars span.is-current{background:var(--action);color:var(--ink);font-weight:700}.phrase-readout{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:14px;padding:16px 0;border-bottom:1px solid var(--rule)}.phrase-readout span{font-size:.75rem;line-height:1.5;color:var(--muted)}.phrase-readout strong{font:1.15rem/1.4 Cubic,monospace}.phrase-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:stretch;margin-top:20px}.phrase-actions .primary-button{margin:0}.phrase-control{min-width:76px}.phrase-hit{flex:1 1 260px;min-height:48px;border:1px solid var(--ink);border-radius:10px;background:var(--ink);color:#fff;font-weight:700;line-height:1.5;cursor:pointer}.phrase-hit:disabled{cursor:not-allowed;opacity:.4}.phrase-feedback{min-height:48px;margin:14px 0 0;color:var(--blue);font-weight:600;line-height:1.7}
.phrase-success{position:relative;display:grid;grid-template-columns:48px minmax(0,1fr);gap:18px;align-items:center;margin-top:18px;padding:22px;background:var(--action);color:var(--ink);border-radius:12px}.phrase-success>svg{width:48px;height:48px;fill:none;stroke:currentColor;stroke-width:4;stroke-linecap:round;stroke-linejoin:round}.phrase-success strong{font-size:1.12rem;line-height:1.45}.phrase-success p{margin:7px 0 0;max-width:60ch;font-size:.86rem;line-height:1.7}.phrase-hit.is-celebrating{background:var(--action);color:var(--ink);border-color:var(--ink);animation:phrase-button-celebrate .62s cubic-bezier(.16,1,.3,1) both}@keyframes phrase-button-celebrate{0%{transform:scale(.96);box-shadow:0 0 0 0 rgba(200,255,50,.8)}45%{transform:scale(1.025);box-shadow:0 0 0 12px rgba(200,255,50,.22)}100%{transform:scale(1);box-shadow:0 0 0 20px rgba(200,255,50,0)}}
body.console-focus{background:#090b0d}.console-focus .masthead,.console-focus .intro,.console-focus .course-catalog,.console-focus .workspace-bar,.console-focus .proof,.console-focus .free-mix,.console-focus .orientation-guide{display:none}.console-focus main{width:min(1800px,100%);margin:0 auto;padding:12px}.console-focus .lesson{margin:10px auto}.console-focus .console-mode-bar{position:fixed;z-index:30;right:12px;top:10px;margin:0}.console-focus .console-mode-bar>span,.console-focus #toggleConsole{display:none}.console-focus #exitConsole{display:block;color:#fff;border-color:#7d878b;background:#171a1d;padding:4px 10px}.console-focus .mixer{min-height:calc(100vh - 210px)}
@media(max-width:700px) and (orientation:portrait){.orientation-guide{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:0 0 18px;padding:18px;background:var(--blue);color:#fff;border-radius:12px}.orientation-guide>div{flex:1 1 100%}.orientation-guide strong,.orientation-guide span{display:block}.orientation-guide span{margin-top:4px;font-size:.82rem;color:#e2e9ff}.orientation-guide .primary-button{min-height:44px;margin:0;background:var(--action);color:var(--ink);box-shadow:none}.orientation-guide .text-button{min-height:44px;color:#fff;border-color:#fff}.console-mode-bar{display:none}}
@media(max-width:700px){.phrase-lesson{grid-template-columns:1fr;padding:24px}.phrase-bars{overflow-x:auto}.phrase-bars>div{min-width:140px}.phrase-actions{flex-direction:column}.phrase-hit{flex:auto}}
@media(max-width:700px){.phrase-success{grid-template-columns:40px 1fr}.phrase-success>svg{width:40px;height:40px}.phrase-success .text-button{grid-column:1/-1}}
@media(max-width:700px){.workspace-bar{top:0;grid-template-columns:auto 1fr;margin:10px -4px 20px;padding:11px 12px;border-radius:9px}.workspace-mode{display:none}.workspace-back{padding:0 10px}.workspace-bar>div strong{font-size:.88rem}.course-open main{width:calc(100% - 24px)}.app-course-phrase .phrase-lesson{min-height:auto}}
@media(prefers-reduced-motion:reduce){.phrase-hit.is-celebrating{animation:none}}
@media(max-height:550px) and (orientation:landscape){body.console-focus{background:#090b0d}.console-focus .masthead,.console-focus .intro,.console-focus .course-catalog,.console-focus .proof,.console-focus .free-mix,.console-focus .orientation-guide{display:none}.console-focus main{width:100%;margin:0;padding:6px}.console-focus .count-sheet{position:fixed;z-index:20;left:50%;top:6px;transform:translateX(-50%);width:min(52vw,560px);grid-template-columns:68px 1fr 110px;background:#111416;color:#f5f7f2;border-color:#555e62}.console-focus .count-grid span{min-height:34px}.console-focus .lesson{position:fixed;z-index:19;left:50%;top:49px;transform:translateX(-50%);width:min(70vw,760px);margin:0;padding:8px 14px;grid-template-columns:1fr auto;background:#171a1d;color:#fff;border-radius:8px}.console-focus .active-course,.console-focus .lesson-progress,.console-focus .lesson-actions{display:none}.console-focus .lesson-copy{display:flex;align-items:center;gap:12px}.console-focus .step-name{margin:0;color:var(--action);white-space:nowrap}.console-focus .lesson h2{font-size:1rem;white-space:nowrap}.console-focus .lesson-copy>p:last-child{margin:0;color:#c8cecb;font-size:.72rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.console-focus .console-mode-bar{position:fixed;z-index:30;right:8px;top:8px;margin:0}.console-focus .console-mode-bar>span,.console-focus #toggleConsole{display:none}.console-focus #exitConsole{display:block;color:#fff;border-color:#7d878b;background:#171a1d;padding:4px 10px}.console-focus .mixer{margin-top:92px;min-height:calc(100vh - 98px);grid-template-columns:minmax(0,1fr) 180px minmax(0,1fr);padding:5px}.console-focus .deck{display:grid;grid-template-columns:minmax(128px,.62fr) minmax(160px,1fr);grid-template-rows:auto auto 1fr;gap:5px 12px;padding:10px}.console-focus .deck-head{grid-column:1/-1;min-height:34px}.console-focus .deck-head p,.console-focus .deck-head h2 span{display:none}.console-focus .deck-head h2{font-size:1.1rem}.console-focus .platter{grid-column:1;grid-row:2/4;margin:4px auto}.console-focus .platter-ring{width:min(27vh,150px);border-width:8px}.console-focus .wave{grid-column:2;height:45px;margin:3px 0}.console-focus .transport-row{grid-column:2;min-height:40px;gap:6px}.console-focus .play-button,.console-focus .sync-button{min-height:38px;padding:0 10px;font-size:.72rem}.console-focus .deck-meta{padding:4px;font-size:.7rem}.console-focus .control-bank{grid-column:1/-1;min-height:82px;margin:2px 0 0;padding:8px 5px 2px}.console-focus .control-bank input{height:36px;width:36px;margin:2px auto}.console-focus .handoff{grid-column:2;grid-row:1;min-height:auto;padding:10px}.console-focus .handoff::before{margin-bottom:6px}.console-focus .handoff>input{margin:12px 0 4px}.console-focus .handoff output{min-height:34px;margin-top:4px;font-size:.68rem}.console-focus .handoff-scale{margin-bottom:3px}.console-focus .deck-b{grid-row:1}}

/* Mobile-first app shell: one focused screen at a time. */
@media(max-width:700px){
  body{background:#f5f3eb}
  .masthead{position:sticky;z-index:28;top:0;min-height:60px;padding:8px 16px;background:rgba(245,243,235,.98);border-bottom-color:#d5d2c7}
  .wordmark{font-size:1.45rem}.sound-gate{min-height:40px;padding:0 12px;border-radius:9px;box-shadow:none}.sound-gate svg{width:18px}.sound-gate span{font-size:.78rem}
  main{width:calc(100% - 28px);margin-bottom:0}
  .intro{display:block;padding:22px 2px 16px}.intro h1{font-size:clamp(2.15rem,10vw,2.8rem);line-height:1.02;max-width:12ch}.intro h1 br{display:none}.intro-copy p,.session-ticket{display:none}
  .course-catalog{display:block;padding:14px 0 12px;border-top:0}.course-heading{display:flex;align-items:end;justify-content:space-between;margin-bottom:10px}.course-heading h2{font-size:1.15rem;line-height:1.2}.course-heading p{display:none}
  .course-list{display:grid;gap:7px;border:0}.course-list li{border:0}.course-list button,.course-list li>div{min-height:54px;grid-template-columns:34px minmax(0,1fr) auto;gap:9px;padding:9px 12px;background:#fff;border:1px solid #d8d5ca;border-radius:11px}.course-list button:active{transform:scale(.985)}.course-list li.is-current button{background:var(--action);border-color:var(--ink)}.course-list strong{font-size:.88rem;line-height:1.25}.course-list small{display:none}.course-state{grid-column:auto;font-size:.7rem}
  .workspace-bar{top:60px;margin:8px 0 12px;padding:9px 10px;box-shadow:none}.workspace-back{min-height:42px}.workspace-bar>div span{display:none}
  .app-course-phrase .phrase-lesson{height:calc(100dvh - 130px);min-height:0;padding:14px 4px 10px;border:0;background:transparent;gap:14px;align-content:center}.phrase-copy>p:first-child{display:none}.phrase-copy h2{font-size:2rem;margin:0 0 8px}.phrase-copy>p{font-size:.87rem;line-height:1.55}.phrase-purpose{margin-top:9px;padding-top:9px}.phrase-stage{min-width:0}.phrase-bars span{min-height:40px}.phrase-bars b{padding:5px 6px}.phrase-readout{padding:11px 0;gap:8px}.phrase-readout strong{font-size:.92rem}.phrase-actions{display:grid;grid-template-columns:1fr auto auto;gap:8px;margin-top:12px}.phrase-actions .primary-button{grid-column:1/-1;min-height:44px;justify-content:center}.phrase-control{min-width:64px}.phrase-hit{grid-column:1/-1;min-height:48px}.phrase-feedback{min-height:30px;margin-top:8px;font-size:.86rem}.phrase-success{margin-top:8px;padding:12px;grid-template-columns:32px minmax(0,1fr);gap:10px}.phrase-success>svg{width:32px;height:32px}.phrase-success strong{font-size:.92rem}.phrase-success p{display:none}
}

/* Course 00 is a self-contained game screen, deliberately unrelated to the old lesson/card layout. */
body.course-console.app-course-phrase{background:linear-gradient(155deg,#eefbd6 0%,#f7f4ee 42%,#e9e2fa 100%)}
body.course-console.app-course-phrase::before{content:"";position:fixed;inset:0;pointer-events:none;background:radial-gradient(circle at 14% 28%,rgba(183,245,73,.25),transparent 34%),radial-gradient(circle at 86% 68%,rgba(163,132,225,.24),transparent 36%)}
body.course-console.app-course-phrase .site-header{display:none!important}
body.course-console.app-course-phrase main{
  position:relative;
  width:min(860px,100%)!important;
  min-height:100dvh;
  margin:0 auto!important;
  padding:0 20px 92px!important;
  display:grid;
  align-content:start;
}
body.course-console.app-course-phrase .workspace-bar{
  position:sticky;
  z-index:40;
  top:0;
  width:100%;
  min-height:76px;
  margin:0!important;
  padding:14px 2px 10px;
  display:grid!important;
  grid-template-columns:48px 1fr auto;
  align-items:center;
  gap:14px;
  border:0;
  border-radius:0;
  background:linear-gradient(180deg,rgba(247,246,240,.94),rgba(247,246,240,.68) 72%,transparent);
  box-shadow:none;
  backdrop-filter:blur(20px) saturate(130%);
}
body.course-console.app-course-phrase .workspace-bar::after{
  content:"";
  grid-column:2;
  grid-row:1;
  height:10px;
  border-radius:999px;
  background:linear-gradient(90deg,#7452b8 var(--lesson-progress,0%),rgba(47,40,54,.1) var(--lesson-progress,0%));
  box-shadow:inset 0 1px 2px rgba(43,34,54,.12);
}
body.course-console.app-course-phrase .workspace-bar>span,
body.course-console.app-course-phrase .workspace-bar>strong{display:none!important}
body.course-console.app-course-phrase .workspace-back{grid-column:1;grid-row:1;background:rgba(255,255,255,.72);border:1px solid rgba(255,255,255,.9);box-shadow:0 8px 22px rgba(52,42,66,.09);color:#372d41}
body.course-console.app-course-phrase .course-widget,
body.course-console.app-course-phrase .count-sheet,
body.course-console.app-course-phrase .orientation-guide,
body.course-console.app-course-phrase .console-mode-bar,
body.course-console.app-course-phrase .lesson,
body.course-console.app-course-phrase .phrase-lesson,
body.course-console.app-course-phrase #mixer,
body.course-console.app-course-phrase .practice-pads,
body.course-console.app-course-phrase .model-deck-tools,
body.course-console.app-course-phrase .model-help{display:none!important}
body.course-console.app-course-phrase .module-lesson{
  width:100%!important;
  min-height:calc(100dvh - 168px)!important;
  margin:0!important;
  padding:24px 0 0!important;
  display:flex!important;
  flex-direction:column;
  align-items:stretch;
  gap:18px;
  border:0!important;
  border-radius:0!important;
  background:transparent!important;
  box-shadow:none!important;
  backdrop-filter:none!important;
}
body.course-console.app-course-phrase .module-copy{order:1;display:block!important;text-align:center}
body.course-console.app-course-phrase .module-label{display:inline-block;margin-bottom:8px;color:#7555b5;font-size:12px;font-weight:900;letter-spacing:.14em;text-transform:uppercase}
body.course-console.app-course-phrase .module-copy h2{margin:0;font-size:clamp(26px,6vw,42px);line-height:1.08;letter-spacing:-.04em;color:#29232f}
body.course-console.app-course-phrase .module-copy p{max-width:34em;margin:10px auto 0;color:#665e6c;font-size:14px;line-height:1.5}
body.course-console.app-course-phrase .module-progress{
  order:0;
  height:28px!important;
  display:flex!important;
  align-items:center;
  justify-content:center;
  gap:9px!important;
}
body.course-console.app-course-phrase .module-knowledge{
  width:9px;
  min-width:9px;
  height:9px;
  min-height:9px!important;
  padding:0!important;
  display:block;
  border-radius:50%;
  background:rgba(51,43,57,.15);
  font-size:0;
  box-shadow:none!important;
}
body.course-console.app-course-phrase .module-knowledge i,
body.course-console.app-course-phrase .module-knowledge span{display:none}
body.course-console.app-course-phrase .module-knowledge.is-current{width:30px;border-radius:999px;background:#7452b8}
body.course-console.app-course-phrase .module-knowledge.is-done{background:#89d54e}
body.course-console.app-course-phrase .module-stage{
  order:2;
  grid-column:auto!important;
  width:100%;
  min-height:270px;
  margin:0 auto;
  display:grid;
  place-items:center;
}
body.course-console.app-course-phrase .controller-concept{max-width:700px;margin:auto}
body.course-console.app-course-phrase .controller-signal-flow>button,
body.course-console.app-course-phrase .controller-effects>button{
  background:rgba(255,255,255,.56);
  border:1px solid rgba(255,255,255,.86);
  box-shadow:0 16px 34px rgba(56,46,70,.08);
  backdrop-filter:blur(22px) saturate(145%);
}
body.course-console.app-course-phrase .controller-zones{
  width:180px;
  min-height:18px;
  padding:0;
  display:flex;
  gap:7px;
  justify-content:center;
  align-items:center;
}
body.course-console.app-course-phrase .controller-zones button{
  width:13px;
  min-width:13px;
  height:13px;
  min-height:13px;
  padding:0;
  border:0;
  border-radius:50%;
  background:rgba(42,35,48,.16);
  opacity:1;
  box-shadow:none;
}
body.course-console.app-course-phrase .controller-zones button b,
body.course-console.app-course-phrase .controller-zones button small{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}
body.course-console.app-course-phrase .controller-zones button.is-current{background:#7452b8;transform:scale(1.25);box-shadow:0 0 0 5px rgba(116,82,184,.14)}
body.course-console.app-course-phrase .controller-zones button.is-done{background:#89d54e}
body.course-console.app-course-phrase .module-stage>.controller-3d{
  display:block!important;
  width:min(760px,100%);
  margin:-6px auto 0;
  overflow:hidden;
  border-radius:26px;
  background:rgba(255,255,255,.26);
  box-shadow:0 20px 52px rgba(59,47,75,.1);
}
body.course-console.app-course-phrase .character-feedback{
  order:3;
  min-height:58px!important;
  max-width:620px;
  margin:0 auto;
  display:grid!important;
  place-items:center;
}
body.course-console.app-course-phrase .character-feedback>.pose-avatar{display:none!important}
body.course-console.app-course-phrase .module-feedback{
  margin:0;
  padding:12px 18px;
  border-radius:16px;
  background:rgba(255,255,255,.6);
  color:#4f4657;
  font-size:13px;
  line-height:1.5;
  text-align:center;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.82);
  backdrop-filter:blur(18px);
}
body.course-console.app-course-phrase .module-feedback:empty{display:none}
body.course-console.app-course-phrase .module-actions{
  order:4;
  grid-column:auto!important;
  position:sticky;
  z-index:30;
  bottom:82px;
  width:min(520px,100%);
  margin:auto;
  padding:10px;
  display:flex!important;
  justify-content:center!important;
  gap:8px;
  border-radius:22px;
  background:rgba(249,248,244,.76);
  box-shadow:0 14px 34px rgba(54,44,66,.12),inset 0 0 0 1px rgba(255,255,255,.9);
  backdrop-filter:blur(24px) saturate(145%);
}
body.course-console.app-course-phrase .module-actions button{min-height:48px;border-radius:15px}
body.course-console.app-course-phrase #moduleRestart{width:48px;min-width:48px;padding:0;font-size:0}
body.course-console.app-course-phrase #moduleRestart::before{content:"↻";font-size:23px;line-height:1}
body.course-console.app-course-phrase #moduleAdvance{flex:1;background:#7452b8;color:#fff;box-shadow:none}
body.course-console.app-course-phrase .app-tabbar{display:none!important}

@media(max-width:700px){
  body.course-console.app-course-phrase main{padding:0 14px 40px!important}
  body.course-console.app-course-phrase .workspace-bar{grid-template-columns:44px 1fr;min-height:68px;gap:12px}
  body.course-console.app-course-phrase .module-lesson{min-height:calc(100dvh - 80px)!important;padding-top:14px!important;gap:13px}
  body.course-console.app-course-phrase .module-copy h2{font-size:28px}
  body.course-console.app-course-phrase .module-stage{min-height:220px}
  body.course-console.app-course-phrase .module-stage>.controller-3d{width:calc(100% + 8px);border-radius:20px}
  body.course-console.app-course-phrase .module-actions{bottom:12px}
  body.course-console.app-course-phrase .controller-signal-flow{width:min(330px,100%)}
  body.course-console.app-course-phrase .controller-effects{width:min(360px,100%)}
}

/* Course 00: one focused task at a time, with graphical controls instead of prose-heavy cards. */
.workspace-back-icon{
  width:48px;
  min-width:48px;
  aspect-ratio:1;
  padding:0!important;
  display:inline-grid!important;
  place-items:center;
  border-radius:50%!important;
  font-size:0!important;
}
.workspace-back-icon span{font-size:25px;line-height:1;transform:translateY(-1px)}
.module-actions button,.module-concept button,.module-finish button{
  min-width:0;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  line-height:1.2;
  white-space:normal;
  overflow-wrap:anywhere;
}
.controller-concept{width:100%;min-height:148px;color:#2c2633}
.controller-concept button{
  appearance:none;
  min-width:0;
  padding:14px 10px;
  border:1px solid rgba(64,53,76,.08);
  border-radius:16px;
  background:rgba(245,242,247,.76);
  color:#2c2633;
  opacity:.38;
  box-shadow:none;
  cursor:default;
  transition:opacity .2s ease,transform .2s ease,background-color .2s ease,box-shadow .2s ease;
}
.controller-concept button.is-current{
  opacity:1;
  background:#f0ebf8;
  box-shadow:0 0 0 2px #7354b5,0 10px 24px rgba(69,51,101,.13);
  cursor:pointer;
  transform:translateY(-2px);
}
.controller-concept button.is-done{opacity:1;background:#e8f7dc;box-shadow:inset 0 0 0 1px rgba(121,207,67,.38)}
.controller-concept button.is-playing{animation:concept-pulse .72s ease-in-out infinite alternate}
.controller-concept button:disabled{pointer-events:none}
.controller-concept b,.controller-concept small{display:block}
.controller-concept b{font-size:13px}.controller-concept small{margin-top:4px;color:#625a69;font-size:11px;line-height:1.35}
.controller-signal-flow{display:grid;grid-template-columns:minmax(92px,1fr) 28px minmax(104px,1fr) 28px minmax(92px,1fr);align-items:center;gap:7px}
.controller-signal-flow>button{min-height:112px}
.controller-signal-flow>i{position:relative;height:2px;background:#7253b7}
.controller-signal-flow>i::after{content:"";position:absolute;right:-1px;top:-3px;width:8px;height:8px;background:#7253b7;clip-path:polygon(0 0,100% 50%,0 100%)}
.controller-zones{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));align-items:stretch;gap:7px;padding:8px 0}
.controller-zones button{min-height:124px}
.controller-effects{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;align-items:stretch}
.controller-effects button{min-height:142px;align-content:center;justify-items:center}
.controller-effects button>i{display:block;width:42px;height:28px;margin:0 auto 12px;background:linear-gradient(90deg,#7253b7 0 18%,transparent 18% 28%,#79cf43 28% 48%,transparent 48% 58%,#7253b7 58% 72%,transparent 72% 82%,#79cf43 82%);mask:linear-gradient(135deg,transparent 0 20%,#000 21% 78%,transparent 79%)}
.controller-cue-steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;width:min(560px,100%);min-height:0;margin:0 auto 4px}
.controller-cue-steps button{min-height:58px;padding:9px 10px}
@keyframes concept-pulse{to{transform:translateY(-2px) scale(1.025);box-shadow:0 0 0 3px rgba(121,207,67,.44),0 12px 28px rgba(69,51,101,.18)}}
body.lesson-finished .app-tabbar{visibility:hidden;pointer-events:none}
body.lesson-finished .character-reaction{display:none!important}
body>.module-finish{position:fixed!important;inset:0!important;width:auto!important;height:auto!important;margin:0!important;z-index:200!important}

@media(max-width:700px){
  .workspace-back-icon{width:44px;min-width:44px}
  .controller-concept{min-height:0}
  .controller-signal-flow{grid-template-columns:1fr;gap:6px}
  .controller-signal-flow>button{min-height:70px}
  .controller-signal-flow>i{width:2px;height:16px;justify-self:center}
  .controller-signal-flow>i::after{right:-3px;top:8px;transform:rotate(135deg)}
  .controller-zones{grid-template-columns:repeat(2,minmax(0,1fr));gap:7px;overflow:visible}
  .controller-zones button{min-height:78px}
  .controller-zones button:last-child{grid-column:1/-1}
  .controller-effects{grid-template-columns:repeat(2,minmax(0,1fr))}
  .controller-effects button{min-height:86px}
  .controller-effects button>i{margin-bottom:7px}
  .controller-cue-steps{gap:6px}.controller-cue-steps button{min-height:52px;padding:7px 5px}.controller-cue-steps b{font-size:11px}.controller-cue-steps small{font-size:9px}
  .module-finish-character{top:38%;width:min(76vw,330px);max-height:52vh}
  .module-finish::before{height:46%}
  .module-finish-panel{margin-bottom:calc(18px + env(safe-area-inset-bottom));padding:16px 20px 24px}
}

/* True semicircular lesson carousel. */
body.hub-open:not(.course-open) .course-list{
  top:4px;
  height:190px;
  display:block;
  padding:0;
  overflow:visible;
  touch-action:pan-y;
}
body.hub-open:not(.course-open) .course-list li,
body.hub-open:not(.course-open) .course-list li:nth-child(n){
  position:absolute;
  left:var(--orbit-x,50%);
  top:var(--orbit-y,5px);
  width:104px;
  height:94px;
  opacity:var(--orbit-opacity,1);
  transform:translateX(-50%) scale(var(--orbit-scale,1));
  transition:left .36s cubic-bezier(.2,.85,.2,1),top .36s cubic-bezier(.2,.85,.2,1),transform .36s cubic-bezier(.2,.85,.2,1),opacity .25s;
}
body.hub-open:not(.course-open) .course-list button{
  width:104px;
  height:94px;
  grid-template-rows:39px 26px;
  padding:9px;
  border-radius:14px;
}
body.hub-open:not(.course-open) .course-list button svg{width:38px;height:38px}
body.hub-open:not(.course-open) .course-list strong{display:none}
body.hub-open:not(.course-open) .course-list .course-wave{height:26px}
body.hub-open:not(.course-open) .course-list .is-orbit-current button{
  outline:3px solid #17161b;
  outline-offset:3px;
  box-shadow:0 16px 30px rgba(43,39,55,.18);
}
.orbit-current{
  position:absolute;
  z-index:12;
  left:50%;
  top:137px;
  min-height:38px;
  padding:8px 18px;
  border:0;
  border-radius:99px;
  background:#17161b;
  color:#fff;
  font:800 .82rem/1 system-ui,"Microsoft YaHei UI",sans-serif;
  transform:translateX(-50%);
  cursor:pointer;
}
.orbit-arrow{
  position:absolute;
  z-index:13;
  top:111px;
  width:42px;
  height:42px;
  display:grid;
  place-items:center;
  border:0;
  border-radius:50%;
  background:rgba(255,255,255,.76);
  color:#17161b;
  box-shadow:0 8px 20px rgba(43,39,55,.13);
  cursor:pointer;
}
.orbit-arrow svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round}
.orbit-prev{left:18px}.orbit-next{right:18px}
.orbit-arrow:focus-visible,.orbit-current:focus-visible{outline:3px solid var(--buzz-green);outline-offset:3px}
body.hub-open:not(.course-open) .course-character{bottom:100px;height:min(55vh,520px)}
body.hub-open:not(.course-open) .hub-wave-canvas{inset:24% -13% auto;height:42%}
@media(max-width:700px){
  body.hub-open:not(.course-open) .course-list{top:2px;height:180px}
  body.hub-open:not(.course-open) .course-list li,body.hub-open:not(.course-open) .course-list li:nth-child(n){width:92px;height:86px}
  body.hub-open:not(.course-open) .course-list button{width:92px;height:86px;grid-template-rows:34px 24px;padding:8px}
  body.hub-open:not(.course-open) .course-list button svg{width:33px;height:33px}
  body.hub-open:not(.course-open) .course-list .course-number{font-size:.66rem}
  .orbit-current{top:130px}
  .orbit-arrow{top:107px;width:38px;height:38px}
  .orbit-prev{left:12px}.orbit-next{right:12px}
  body.hub-open:not(.course-open) .course-character{bottom:98px;height:min(53vh,470px)}
}

/* Inertial frosted lesson wheel. */
body.hub-open:not(.course-open) .course-list{top:76px;height:205px;cursor:grab;user-select:none;touch-action:none}
body.hub-open:not(.course-open) .course-list.is-dragging{cursor:grabbing}
body.hub-open:not(.course-open) .course-list li,body.hub-open:not(.course-open) .course-list li:nth-child(n){transform:translateX(-50%) translateX(var(--drag-x,0px)) scale(var(--orbit-scale,1));will-change:transform,left,top}
body.hub-open:not(.course-open) .course-list.is-dragging li{transition:none}
body.hub-open:not(.course-open) .course-list button{
  overflow:visible;
  border:1px solid rgba(255,255,255,.72);
  background:rgba(255,255,255,.36)!important;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.85),0 15px 30px rgba(46,40,61,.14);
  backdrop-filter:blur(22px) saturate(135%);
}
body.hub-open:not(.course-open) .course-list button svg,body.hub-open:not(.course-open) .course-list .course-wave{visibility:hidden}
body.hub-open:not(.course-open) .course-list button::after{
  content:"";
  position:absolute;
  inset:10px 11px 12px;
  z-index:0;
  background-image:url("./assets/characters/lesson-card-faces-v1.png");
  background-repeat:no-repeat;
  background-size:700% 100%;
  background-position:0 50%;
  filter:drop-shadow(0 3px 3px rgba(32,28,40,.13));
}
body.hub-open:not(.course-open) .course-list li:nth-child(2) button::after{background-position:16.666% 50%}
body.hub-open:not(.course-open) .course-list li:nth-child(3) button::after{background-position:33.333% 50%}
body.hub-open:not(.course-open) .course-list li:nth-child(4) button::after{background-position:50% 50%}
body.hub-open:not(.course-open) .course-list li:nth-child(5) button::after{background-position:66.666% 50%}
body.hub-open:not(.course-open) .course-list li:nth-child(6) button::after{background-position:83.333% 50%}
body.hub-open:not(.course-open) .course-list li:nth-child(7) button::after{background-position:100% 50%}
body.hub-open:not(.course-open) .course-list .course-number{position:absolute;z-index:2;right:8px;top:8px;padding:4px 5px;border-radius:6px;background:rgba(255,255,255,.72);color:#40335f;backdrop-filter:blur(6px)}
body.hub-open:not(.course-open) .course-list strong{
  display:block;
  top:calc(100% + 8px);
  opacity:0;
  transform:translate(-50%,-3px);
}
body.hub-open:not(.course-open) .course-list button:hover strong,body.hub-open:not(.course-open) .course-list button:focus-visible strong{opacity:1;transform:translate(-50%,0)}
body.hub-open:not(.course-open) .course-list .is-orbit-current button{background:rgba(255,255,255,.53)!important}
body.hub-open:not(.course-open) .course-character{bottom:108px;height:min(45vh,420px)}
body.hub-open:not(.course-open) .course-heading{bottom:78px}
.orbit-current{top:275px}
.orbit-arrow{top:47%;transform:translateY(-50%)}
.orbit-prev{left:12%}.orbit-next{right:12%}
@media(max-width:700px){
  body.hub-open:not(.course-open) .course-list{top:64px;height:194px}
  body.hub-open:not(.course-open) .course-character{bottom:104px;height:min(42vh,380px)}
  .orbit-current{top:250px}
  .orbit-arrow{top:48%;width:42px;height:42px}.orbit-prev{left:8%}.orbit-next{right:8%}
}
@media(prefers-reduced-motion:reduce){
  body.hub-open:not(.course-open) .course-list li{transition:opacity .15s}
}

/* 00: listen before explanation. */
.course-open .lesson-progress{grid-column:1/-1;grid-row:1}
.course-open .lesson-copy{grid-column:1/-1;grid-row:2}
.course-open .lesson-track-compare{grid-column:1/-1;grid-row:3;width:100%}
.course-open .lesson-primary-action{grid-column:1/-1;grid-row:4}
.course-open .lesson-utility-actions{grid-column:1/-1;grid-row:5}
.course-open .lesson-why{grid-column:1/-1;grid-row:6}
.course-open .lesson-actions{grid-column:1/-1;grid-row:7}
.course-open .lesson-copy h2{max-width:none}
@media(max-width:700px){
  .course-open .lesson{grid-template-columns:1fr;align-content:start;min-height:auto;padding-top:18px}
  .course-open .lesson-copy h2{font-size:2rem}
}

/* 00 learning template: one visible action before explanation. */
.course-open .lesson{
  width:min(680px,100%);
  margin:18px auto 24px;
  padding:clamp(20px,4vw,34px);
  display:grid;
  grid-template-columns:1fr auto;
  gap:18px 22px;
  align-items:center;
}
.course-open .lesson-progress{
  grid-column:1/-1;
  display:flex;
  gap:6px;
  overflow:hidden;
}
.course-open .lesson-progress span{
  width:8px;
  height:8px;
  min-width:8px;
  padding:0;
  overflow:hidden;
  border:0;
  border-radius:50%;
  background:rgba(64,51,98,.16);
  color:transparent;
}
.course-open .lesson-progress span.is-done{background:var(--buzz-purple)}
.course-open .lesson-progress span.is-current{
  width:28px;
  border-radius:99px;
  background:var(--buzz-green);
}
.course-open .lesson-copy{align-self:end}
.course-open .lesson-copy h2{
  max-width:11ch;
  margin:0 0 8px;
  font:750 clamp(1.65rem,5vw,2.7rem)/1.06 system-ui,"Microsoft YaHei UI",sans-serif;
  letter-spacing:-.03em;
  color:#222129;
}
.course-open .lesson-copy>p{
  max-width:24ch;
  margin:0;
  font-size:.92rem;
  line-height:1.55;
  color:#555260;
}
.lesson-visual{
  height:82px;
  min-width:156px;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:5px;
  color:var(--buzz-purple);
}
.lesson-visual i{
  width:5px;
  height:var(--bar-height,28%);
  border-radius:99px;
  background:currentColor;
  opacity:.72;
  transform-origin:center;
  animation:lesson-wave 1s ease-in-out infinite alternate;
}
.lesson-visual i:nth-child(3n+1){--bar-height:75%;animation-delay:-.6s}
.lesson-visual i:nth-child(3n+2){--bar-height:38%;animation-delay:-.25s}
.lesson-visual i:nth-child(4n){--bar-height:92%;animation-delay:-.8s}
@keyframes lesson-wave{to{transform:scaleY(.45);opacity:.42}}
.lesson-primary-action{
  grid-column:1/-1;
  min-height:58px;
  border:0;
  border-radius:15px;
  background:#242229;
  color:#fff;
  font:750 1rem/1 system-ui,"Microsoft YaHei UI",sans-serif;
  cursor:pointer;
  box-shadow:0 12px 28px rgba(49,43,66,.16);
}
.lesson-primary-action:not(:disabled):active{transform:scale(.985)}
.lesson-primary-action:disabled{background:rgba(36,34,41,.12);color:#66616f;box-shadow:none;cursor:default}
.lesson-utility-actions{
  grid-column:1/-1;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:10px;
}
.lesson-utility-actions .text-button{min-height:42px}
.lesson-why{
  grid-column:1/-1;
  border-top:1px solid rgba(64,51,98,.12);
  padding-top:14px;
  color:#4f4b59;
}
.lesson-why summary{cursor:pointer;font-weight:700;font-size:.84rem;list-style-position:inside}
.lesson-why p{margin:10px 0 0;font-size:.82rem;line-height:1.65;max-width:52ch}
.course-open .lesson-actions{grid-column:1/-1;display:flex;align-items:center;gap:12px;margin:0}
.course-open .lesson-actions #hintButton{margin-left:auto}
.course-open .coach-message{margin:0;flex:1;font-size:.82rem;line-height:1.5}
.lesson-primary-action:focus-visible,.lesson-why summary:focus-visible{
  outline:3px solid rgba(121,207,67,.7);
  outline-offset:3px;
}
@media(max-width:700px){
  .course-open .lesson{
    min-height:calc(100dvh - 178px);
    margin:0 auto 90px;
    padding:22px 18px;
    grid-template-columns:minmax(0,1fr) 126px;
    align-content:center;
    gap:16px;
  }
  .course-open .lesson-copy h2{font-size:clamp(1.8rem,9vw,2.6rem)}
  .course-open .lesson-copy>p{font-size:.86rem}
  .lesson-visual{min-width:0;height:76px;gap:4px}
  .lesson-visual i{width:4px}
  .course-open .lesson-actions{min-height:34px}
  .course-open .lesson-actions #hintButton{font-size:.78rem}
}
@media(prefers-reduced-motion:reduce){.lesson-visual i{animation:none}}

/* Learning orbit: character-led, swipeable, live audio fabric. */
body.hub-open:not(.course-open){
  overflow:hidden;
  background:#eeeade;
}
body.hub-open:not(.course-open)::before,
body.hub-open:not(.course-open)::after{display:none}
body.hub-open:not(.course-open) main{width:100%;max-width:none;padding:66px 0 0}
body.hub-open:not(.course-open) .course-catalog{
  position:relative;
  display:block;
  width:100%;
  height:calc(100dvh - 66px);
  min-height:590px;
  padding:0;
  overflow:hidden;
  isolation:isolate;
  background:
    linear-gradient(108deg,rgba(121,207,67,.11),transparent 28%),
    linear-gradient(252deg,rgba(114,83,183,.13),transparent 31%),
    #eeeade;
}
.hub-open .course-heading{
  position:absolute;
  z-index:7;
  left:50%;
  bottom:90px;
  width:100%;
  padding:0 24px;
  transform:translateX(-50%);
  text-align:center;
  pointer-events:none;
}
.hub-open .course-heading h2{
  width:auto;
  margin:0;
  color:#17161b;
  font-size:clamp(1.45rem,5vw,2.1rem);
  font-weight:900;
  letter-spacing:-.035em;
  text-shadow:none;
}
.hub-wave-canvas{
  position:absolute;
  z-index:1;
  inset:16% -8% auto;
  width:116%;
  height:56%;
  pointer-events:none;
}
.hub-open .course-list{
  position:absolute;
  z-index:6;
  top:18px;
  left:0;
  width:100%;
  display:flex;
  gap:14px;
  margin:0;
  padding:18px max(22px,calc(50vw - 78px)) 38px;
  overflow-x:auto;
  overflow-y:hidden;
  scroll-snap-type:x mandatory;
  scrollbar-width:none;
  overscroll-behavior-x:contain;
}
.hub-open .course-list::-webkit-scrollbar{display:none}
.hub-open .course-list::before{display:none}
.hub-open .course-list li{
  flex:0 0 156px;
  border:0;
  scroll-snap-align:center;
}
.hub-open .course-list li::before{display:none}
.hub-open .course-list li:nth-child(1),.hub-open .course-list li:nth-child(7){transform:translateY(58px) rotate(-7deg)}
.hub-open .course-list li:nth-child(2),.hub-open .course-list li:nth-child(6){transform:translateY(24px) rotate(-4deg)}
.hub-open .course-list li:nth-child(3),.hub-open .course-list li:nth-child(5){transform:translateY(5px) rotate(-2deg)}
.hub-open .course-list li:nth-child(4){transform:translateY(0)}
.hub-open .course-list button,
.hub-open .course-list li>div{
  position:relative;
  width:156px;
  height:126px;
  min-height:0;
  display:grid;
  grid-template-columns:1fr auto;
  grid-template-rows:50px 34px;
  gap:6px;
  padding:13px 12px 11px;
  overflow:visible;
  border:0;
  border-radius:15px;
  background:rgba(255,255,255,.72);
  color:#17161b;
  box-shadow:0 12px 26px rgba(43,39,55,.12);
  backdrop-filter:blur(12px);
  transition:transform .22s cubic-bezier(.2,.8,.2,1),background .22s;
}
.hub-open .course-list li:nth-child(odd) button{background:rgba(220,248,197,.8)}
.hub-open .course-list li:nth-child(even) button{background:rgba(227,214,250,.82)}
.hub-open .course-list button:hover,.hub-open .course-list button:focus-visible{
  transform:translateY(-8px) rotate(1.5deg);
  background:#fff;
  outline:3px solid #17161b;
  outline-offset:3px;
}
.hub-open .course-list button svg{
  width:48px;
  height:48px;
  align-self:center;
  fill:none;
  stroke:currentColor;
  stroke-width:2.8;
  stroke-linecap:round;
  stroke-linejoin:round;
}
.hub-open .course-list li:first-child button svg{fill:var(--buzz-green);stroke:#17161b}
.hub-open .course-list .course-number{
  justify-self:end;
  font:800 .76rem/1 system-ui,sans-serif;
}
.hub-open .course-list strong{
  position:absolute;
  left:50%;
  top:calc(100% + 9px);
  z-index:8;
  width:max-content;
  max-width:160px;
  padding:7px 10px;
  border-radius:8px;
  background:#17161b;
  color:#fff;
  font-size:.76rem;
  line-height:1.2;
  opacity:0;
  transform:translate(-50%,-4px);
  pointer-events:none;
  transition:opacity .18s,transform .18s;
}
.hub-open .course-list button:hover strong,.hub-open .course-list button:focus-visible strong{opacity:1;transform:translate(-50%,0)}
.hub-open .course-list .course-wave{grid-column:1/-1;width:100%;height:34px;color:var(--buzz-purple)}
.course-character{
  position:absolute;
  z-index:4;
  left:50%;
  bottom:122px;
  height:min(61vh,600px);
  transform:translateX(-50%);
  pointer-events:none;
}
.course-character img{display:block;width:auto;height:100%;filter:drop-shadow(0 18px 18px rgba(35,31,44,.16))}
.punk-marks{position:absolute;z-index:5;inset:0;pointer-events:none;color:#17161b}
.punk-marks i{position:absolute;width:42px;height:3px;background:currentColor;transform:rotate(-16deg)}
.punk-marks i:nth-child(1){left:7%;top:34%}.punk-marks i:nth-child(2){right:8%;top:43%;transform:rotate(19deg)}
.punk-marks i:nth-child(3){left:16%;bottom:18%;width:26px;transform:rotate(7deg)}
.punk-marks span{position:absolute;right:5%;bottom:13%;font:800 .72rem/1 system-ui,sans-serif;transform:rotate(-6deg)}
@media(max-width:700px){
  body.hub-open:not(.course-open) main{padding-top:60px}
  body.hub-open:not(.course-open) .course-catalog{height:calc(100dvh - 60px);min-height:540px}
  .hub-open .course-list{top:4px;gap:12px;padding-top:12px}
  .hub-open .course-list li{flex-basis:146px}
  .hub-open .course-list button,.hub-open .course-list li>div{width:146px;height:116px;grid-template-rows:44px 30px;padding:11px}
  .hub-open .course-list button svg{width:42px;height:42px}
  .course-character{bottom:110px;height:min(57vh,510px)}
  .hub-open .course-heading{bottom:78px}
  .hub-open .course-heading h2{font-size:1.55rem}
  .hub-wave-canvas{inset:19% -13% auto;width:126%;height:48%}
}
@media(max-height:700px){.course-character{height:52vh}.hub-open .course-heading{bottom:68px}}
@media(prefers-reduced-motion:reduce){.hub-open .course-list{scroll-behavior:auto}}

.lesson-track-compare{
  min-width:220px;
  height:auto;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:9px;
}
.lesson-track-compare button{
  min-width:0;
  display:grid;
  grid-template-columns:auto 1fr;
  gap:4px 8px;
  align-items:center;
  padding:10px;
  border:0;
  border-radius:13px;
  background:rgba(255,255,255,.62);
  color:#25222d;
  cursor:pointer;
}
.lesson-track-compare button:focus-visible{outline:3px solid var(--buzz-green);outline-offset:2px}
.lesson-track-compare b{font-size:.76rem}
.lesson-track-compare small{grid-column:1/-1;text-align:left;color:#5a5662;font-size:.68rem}
.mini-track{height:28px;display:flex;align-items:center;gap:3px}
.mini-track i{
  width:3px;
  height:var(--mini-height,42%);
  border-radius:99px;
  background:var(--buzz-purple);
  transform-origin:center;
  animation:lesson-wave .8s ease-in-out infinite alternate;
}
.mini-track i:nth-child(2n){--mini-height:84%}.mini-track i:nth-child(3n){--mini-height:58%}
#previewA .mini-track i{background:#4d9725}
@media(max-width:700px){
  .lesson-track-compare{grid-column:1/-1;min-width:0;width:100%}
  .lesson-track-compare button{min-height:66px}
}

/* Rebel Doodle DJ — calm rounded structure with a restrained punk illustration layer. */
:root{--paper:#f1eee7;--sheet:#fffdf8;--ink:#211f1c;--muted:#716b63;--rule:#ddd8cd;--action:#c9d9df;--blue:#315fb5;--oxblood:#962f35;--soft-blue:#dce7ef;--shadow:0 12px 30px rgba(45,38,30,.08);--radius:22px}
body{background:var(--paper)}
.masthead{border-bottom:0}.wordmark{color:var(--oxblood)}
.sound-gate,.primary-button{border:0;border-radius:16px;background:var(--ink);color:#fff;box-shadow:0 8px 20px rgba(33,31,28,.13)}.sound-gate:hover,.primary-button:hover{box-shadow:0 10px 24px rgba(33,31,28,.16)}body.audio-ready .sound-gate{background:var(--oxblood);color:#fff}body.audio-ready .sound-gate svg{fill:none;stroke:#fff}
.intro{position:relative;grid-template-columns:minmax(0,1.1fr) minmax(300px,.9fr);overflow:hidden}.intro-copy{position:relative;z-index:2}.intro h1{max-width:10ch}.intro-visual{position:relative;min-height:430px;display:grid;align-items:end}.hero-art{position:absolute;z-index:1;right:2%;bottom:-15%;width:min(410px,90%);height:auto;filter:drop-shadow(0 18px 24px rgba(34,27,23,.12))}.session-ticket{position:relative;z-index:2;align-self:end;margin:0 0 22px auto;width:min(320px,86%);padding:18px 20px;border:0;border-radius:18px;background:rgba(255,253,248,.82);box-shadow:var(--shadow);backdrop-filter:blur(16px)}
.course-catalog{border-top:0;padding-top:24px}.course-heading h2{font-family:system-ui,"Microsoft YaHei UI",sans-serif;color:var(--oxblood)}.course-list{display:grid;gap:10px;border:0}.course-list li{border:0}.course-list button,.course-list li>div{padding:17px 18px;border:0;border-radius:16px;background:var(--sheet);box-shadow:0 5px 16px rgba(45,38,30,.045);transition:transform .18s var(--ease),background .18s var(--ease),color .18s var(--ease)}.course-list button:hover{background:#fff;transform:translateY(-2px)}.course-list li.is-current button{background:var(--oxblood);color:#fff}.course-list li.is-current small{color:#f0dfe0}.course-list li.is-current .course-state{color:var(--action)}
.workspace-bar{background:rgba(255,253,248,.94);color:var(--ink);border-radius:18px;box-shadow:var(--shadow);backdrop-filter:blur(16px)}.workspace-back{border:0;border-radius:13px;background:#ece8df;color:var(--ink)}.workspace-bar>div span{color:var(--muted)}.workspace-mode{color:var(--oxblood)}
.lesson{border:0;border-radius:22px;box-shadow:var(--shadow)}.active-course,.workspace-mode{display:none}.text-button{border:0;border-radius:13px;background:#ece8df;padding-inline:14px;text-align:center}.text-button:hover{background:#e3ddd2}.coach-message{border:0;border-radius:14px;background:var(--soft-blue);padding:12px 14px;color:#294f7d}
.orientation-guide{background:var(--oxblood)!important;border-radius:22px!important;color:#fff!important}.orientation-guide span{color:#f3e4e5!important}.orientation-guide .primary-button{background:var(--action)!important;color:var(--ink)!important;box-shadow:none}
.phrase-lesson{border:0;border-radius:22px;background:var(--sheet);box-shadow:var(--shadow)}.phrase-purpose{border-color:var(--rule)}.phrase-bars{border:0;border-radius:14px;overflow:hidden;background:#f2eee6}.phrase-bars>div{border-color:#d2cbc0}.phrase-bars b,.phrase-bars span{border-color:#d2cbc0}.phrase-bars span.is-current{background:var(--oxblood);color:#fff}.phrase-readout{border-color:var(--rule)}.phrase-hit{border:0;border-radius:16px;background:var(--ink)}.phrase-hit.is-celebrating{background:var(--action);box-shadow:none}.phrase-success{background:var(--action);border-radius:18px}
.mixer{border-radius:22px;box-shadow:0 20px 45px rgba(17,18,15,.18)}.deck,.handoff{border-radius:16px}

@media(max-width:700px){
  body{background:var(--paper)}.masthead{background:rgba(241,238,231,.96)}.wordmark{color:var(--oxblood)}
  .intro{position:relative;display:block;min-height:174px;padding:22px 0 12px;overflow:visible}.intro-copy{width:62%}.intro h1{font-size:2.25rem;line-height:.98;color:var(--ink)}.intro-visual{position:absolute;right:-10px;top:1px;width:46%;min-height:185px;pointer-events:none}.hero-art{right:0;bottom:-7px;width:100%;max-height:190px;object-fit:contain;filter:drop-shadow(0 10px 15px rgba(34,27,23,.1))}.session-ticket{display:none}
  .course-catalog{padding-top:8px}.course-heading{margin-bottom:9px}.course-heading h2{font-family:system-ui,"Microsoft YaHei UI",sans-serif;color:var(--ink);font-size:1rem;font-weight:700}.course-list{gap:7px}.course-list button,.course-list li>div{min-height:52px;padding:9px 13px;border:0;border-radius:15px;background:var(--sheet);box-shadow:0 4px 13px rgba(45,38,30,.05)}.course-list li.is-current button{background:var(--oxblood);color:#fff}.course-list li.is-current .course-number{color:var(--action)}
  .workspace-bar{background:rgba(255,253,248,.96);color:var(--ink);border-radius:18px;box-shadow:0 8px 24px rgba(45,38,30,.08)}.workspace-back{background:#ece8df;color:var(--ink);border-radius:13px}.workspace-mode{color:var(--oxblood)}
  .course-open:not(.app-course-phrase) .lesson{border:0;border-radius:22px;background:var(--sheet);box-shadow:var(--shadow)}.course-open:not(.app-course-phrase) .lesson-actions .text-button{background:#ece8df}.course-open:not(.app-course-phrase) .orientation-guide{border-radius:22px;padding:18px;background:var(--oxblood)}
  .app-course-phrase .phrase-lesson{border-radius:0;background:transparent;box-shadow:none}.app-course-phrase .phrase-copy h2{font-family:system-ui,"Microsoft YaHei UI",sans-serif;color:var(--oxblood)}.app-course-phrase .phrase-bars{border-radius:13px;background:var(--sheet);box-shadow:0 5px 16px rgba(45,38,30,.05)}.app-course-phrase .phrase-actions .primary-button{background:var(--ink);color:#fff;box-shadow:none}.app-course-phrase .phrase-control{background:#e9e3d8}.app-course-phrase .phrase-hit{background:var(--oxblood);color:#fff}.app-course-phrase .phrase-feedback{color:var(--oxblood)}
}
@media(max-width:700px) and (orientation:portrait){
  .course-open:not(.app-course-phrase):not(.console-focus) .count-sheet,.course-open:not(.app-course-phrase):not(.console-focus) .mixer,.course-open:not(.app-course-phrase):not(.console-focus) .console-mode-bar{display:none!important}
  .course-open:not(.app-course-phrase) .lesson{margin:0;padding:18px;border-radius:12px;box-shadow:none;border:1px solid #d8d5ca}.course-open:not(.app-course-phrase) .lesson-progress{display:none}.course-open:not(.app-course-phrase) .lesson-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;max-width:none;margin-top:4px}.course-open:not(.app-course-phrase) .lesson-actions .text-button{min-width:0;text-align:center}.course-open:not(.app-course-phrase) .coach-message{grid-column:1/-1;margin:4px 0 0;line-height:1.6}.course-open:not(.app-course-phrase) .orientation-guide{display:grid;grid-template-columns:1fr;margin-top:12px}.course-open:not(.app-course-phrase) .orientation-guide .primary-button{width:100%;justify-content:center}
}
@media(max-width:700px) and (min-height:640px){body:not(.course-open),body.app-course-phrase{overflow:hidden}}
@media(max-width:700px){
  .course-open:not(.console-focus) .masthead{display:none}.course-open:not(.console-focus) .workspace-bar{top:0}
  body.app-course-phrase,body.app-course-phrase main{height:auto;overflow:visible}.app-course-phrase main{min-height:100dvh}
  .app-course-phrase .workspace-bar{height:60px;margin:8px 0 6px}.app-course-phrase .phrase-lesson{height:calc(100dvh - 74px);grid-template-rows:auto auto;gap:14px;padding:26px 2px 8px;align-content:start}.app-course-phrase .phrase-copy h2{font-size:1.65rem;margin-bottom:4px}.app-course-phrase .phrase-copy>p{font-size:.8rem;line-height:1.55}.app-course-phrase .phrase-purpose{margin-top:8px;padding-top:8px}.app-course-phrase .phrase-stage{display:flex;min-height:0;flex-direction:column;justify-content:flex-start}.app-course-phrase .phrase-bars{overflow:visible}.app-course-phrase .phrase-bars>div{min-width:0}.app-course-phrase .phrase-bars b{font-size:.62rem}.app-course-phrase .phrase-bars span{min-height:36px;font-size:.8rem}.app-course-phrase .phrase-readout{padding:8px 0}.app-course-phrase .phrase-readout span{font-size:.66rem}.app-course-phrase .phrase-readout strong{font-size:.82rem}.app-course-phrase .phrase-actions{margin-top:8px}.app-course-phrase .phrase-feedback{min-height:24px;margin-top:5px}.app-course-phrase .phrase-success{display:none!important}
}

/* Two-typeface rule: Gochi Hand is reserved for the Latin wordmark. */
.prototype-mark,.workspace-bar>div span,.workspace-mode,.course-number,.course-state,
.count-label,.count-status,.count-grid span,.active-course,.step-name,.deck-head p,
.deck-head output,.deck-meta span,.control-bank output,.handoff-title strong,.proof dd,
.success-inner>p:first-of-type,.tour-panel>p:first-child,.platter-ring span,.platter small,
.handoff::before,.console-mode-bar>span,.phrase-copy>p:first-child,.phrase-bars span,
.phrase-readout strong,.bpm-correction input{
  font-family:system-ui,"Microsoft YaHei UI","Microsoft YaHei",sans-serif;
}
.course-heading h2,.app-course-phrase .phrase-copy h2,.success-inner h2{
  font-family:system-ui,"Microsoft YaHei UI","Microsoft YaHei",sans-serif;
  letter-spacing:-.02em;
}

/* Product-first home: one cool accent family, denser value explanation. */
:root{
  --paper:#f3f1ea;
  --sheet:#fffefa;
  --ink:#17181b;
  --muted:#62646b;
  --rule:#d9d9df;
  --action:#bdc9ee;
  --blue:#526499;
  --oxblood:#526499;
  --soft-blue:#e9ecf6;
  --shadow:0 10px 28px rgba(27,29,36,.07);
}
.wordmark{color:var(--ink)}
body.audio-ready .sound-gate{background:var(--blue);color:#fff}
.product-kicker{display:inline-flex;align-items:center;min-height:28px;padding:0 11px;border:1px solid var(--ink);border-radius:999px;font-size:.72rem;font-weight:750;letter-spacing:.05em}
.intro-copy>p{max-width:39ch;color:var(--muted);line-height:1.7}
.product-facts{display:flex;flex-wrap:wrap;gap:8px 18px;margin:20px 0 0;padding:0;list-style:none;color:var(--ink);font-size:.82rem;font-weight:650}
.product-facts li{position:relative;padding-left:12px}.product-facts li::before{content:"";position:absolute;left:0;top:.58em;width:5px;height:5px;border-radius:50%;background:var(--blue)}
.enter-app{display:inline-flex;align-items:center;justify-content:center;gap:16px;min-height:54px;margin-top:26px;padding:0 22px;border:0;border-radius:16px;background:var(--ink);color:#fff;font-weight:750;cursor:pointer;box-shadow:0 10px 24px rgba(23,24,27,.13);transition:background .18s var(--ease),transform .18s var(--ease)}
.enter-app:hover{background:#2a2b30}.enter-app:active{transform:scale(.985)}.enter-app span{font-size:1.25rem}
.course-heading h2{color:var(--ink)}
.course-list li.is-current button{background:var(--ink);color:#fff}
.course-list li.is-current small{color:#cfd1d8}.course-list li.is-current .course-state,.course-list li.is-current .course-number{color:var(--action)}
.orientation-guide{background:var(--ink)!important}.orientation-guide span{color:#d8dae2!important}
.phrase-bars span.is-current{background:var(--blue)}
.app-course-phrase .phrase-copy h2,.app-course-phrase .phrase-feedback{color:var(--blue)}
.app-course-phrase .phrase-hit{background:var(--ink)}

@media(max-width:700px){
  body,.masthead{background:var(--paper)}
  .intro{min-height:246px;padding:14px 0 10px}
  .intro-copy{width:67%}
  .product-kicker{min-height:24px;padding-inline:9px;font-size:.62rem}
  .intro h1{margin-top:11px;font-family:system-ui,"Microsoft YaHei UI","Microsoft YaHei",sans-serif;font-size:1.82rem;line-height:1.12;letter-spacing:-.045em;max-width:9ch}
  .intro-copy>p{display:block;margin:10px 0 0;font-size:.78rem;line-height:1.55;max-width:25ch}
  .product-facts{display:flex;margin-top:10px;gap:4px 10px;font-size:.66rem}.product-facts li{padding-left:9px}
  .intro-visual{top:42px;right:-14px;width:44%;min-height:190px}.hero-art{max-height:200px}
  .course-catalog{padding-top:4px}.course-heading{display:block;margin-bottom:10px}.course-heading h2{font-size:1.08rem}.course-heading p{display:block;margin:4px 0 0;max-width:none;font-size:.72rem;line-height:1.45}
  .course-list{gap:6px}.course-list button,.course-list li>div{min-height:49px;padding:8px 12px;border-radius:14px}.course-list strong{font-size:.84rem}.course-list li.is-current button{background:var(--ink)}
  body:not(.course-open) .course-list .is-upcoming{display:none}
  body:not(.course-open) .course-list button{grid-template-columns:minmax(0,1fr) auto;padding:12px 14px}
  body:not(.course-open) .course-number{display:none}
  body:not(.course-open) .course-list strong{font-size:.9rem}
  body:not(.course-open) .course-list small{display:block;margin-top:4px;font-size:.7rem;line-height:1.35}
}

.app-tabbar{display:none}
@media(max-width:700px){
  body.hub-open,body.course-open{padding-bottom:calc(76px + env(safe-area-inset-bottom))}
  .app-tabbar{position:fixed;z-index:60;left:12px;right:12px;bottom:calc(10px + env(safe-area-inset-bottom));grid-template-columns:repeat(3,1fr);gap:4px;min-height:62px;padding:5px;border:1px solid rgba(23,24,27,.1);border-radius:20px;background:rgba(255,254,250,.94);box-shadow:0 12px 34px rgba(23,24,27,.14);backdrop-filter:blur(18px)}
  body.hub-open .app-tabbar,body.course-open .app-tabbar{display:grid}
  .app-tab{min-height:52px;border:0;border-radius:15px;background:transparent;color:var(--muted);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:.68rem;font-weight:700;cursor:pointer;transition:background .18s var(--ease),color .18s var(--ease)}
  .app-tab svg{width:21px;height:21px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
  .app-tab.is-active{background:var(--ink);color:#fff}
  .app-tab:active{background:var(--soft-blue)}.app-tab.is-active:active{background:#2a2b30}
  .console-focus .app-tabbar{display:none}
}

@media(max-width:700px){
  body:not(.hub-open):not(.course-open) .masthead .sound-gate{display:none}
  body:not(.hub-open):not(.course-open) .course-catalog{display:none}
  body:not(.hub-open):not(.course-open) main{width:100%;margin:0}
  body:not(.hub-open):not(.course-open) .intro{box-sizing:border-box;min-height:calc(100dvh - 60px);padding:8vh 24px 12vh;display:flex;align-items:flex-start;overflow:hidden}
  body:not(.hub-open):not(.course-open) .intro-copy{width:65%;z-index:3}
  body:not(.hub-open):not(.course-open) .product-kicker{background:rgba(243,241,234,.72)}
  body:not(.hub-open):not(.course-open) .intro h1{margin-top:18px;font-size:clamp(2.45rem,12vw,3.2rem);line-height:1.08;max-width:8ch}
  body:not(.hub-open):not(.course-open) .intro-copy>p{max-width:20ch;margin-top:16px;font-size:.82rem}
  body:not(.hub-open):not(.course-open) .product-facts{display:none}
  body:not(.hub-open):not(.course-open) .enter-app{margin-top:28px}
  body:not(.hub-open):not(.course-open) .intro-visual{top:auto;right:-7%;bottom:4%;width:69%;min-height:57vh}
  body:not(.hub-open):not(.course-open) .hero-art{right:0;bottom:0;width:100%;max-height:57vh}
  body.hub-open:not(.course-open) .intro{display:none}
  body.hub-open:not(.course-open) .course-catalog{padding-top:28px}
}
@media(min-width:701px){
  body:not(.hub-open):not(.course-open) .course-catalog{display:none}
  body.hub-open:not(.course-open) .intro{display:none}
}

/* Brand launch screen: expressive type, quiet copy, liquid-glass entry. */
@media(max-width:700px){
  body:not(.hub-open):not(.course-open){background:#08080a}
  body:not(.hub-open):not(.course-open)::before,
  body:not(.hub-open):not(.course-open)::after{content:"";position:fixed;z-index:-1;border-radius:50%;filter:blur(12px);pointer-events:none}
  body:not(.hub-open):not(.course-open)::before{width:86vw;height:46vh;left:-42vw;top:14vh;background:radial-gradient(circle at 62% 46%,rgba(255,0,128,.16),rgba(255,0,128,0) 68%)}
  body:not(.hub-open):not(.course-open)::after{width:82vw;height:42vh;right:-43vw;bottom:5vh;background:radial-gradient(circle at 38% 46%,rgba(255,0,128,.11),rgba(255,0,128,0) 70%)}
  body:not(.hub-open):not(.course-open) .masthead{background:transparent;padding-inline:22px}
  body:not(.hub-open):not(.course-open) .wordmark{font-size:1.6rem;color:#f7f4ef}
  body:not(.hub-open):not(.course-open) .intro{position:relative;padding:11vh 24px 24px;align-items:flex-start}
  body:not(.hub-open):not(.course-open) .intro-copy{position:static;width:100%;z-index:1}
  body:not(.hub-open):not(.course-open) .product-kicker{display:none}
  body:not(.hub-open):not(.course-open) .launch-lockup{position:absolute;z-index:1;left:10px;top:2%;width:min(84vw,430px)}
  body:not(.hub-open):not(.course-open) .launch-title{display:block;width:100%;max-width:none;margin:0;color:#ff0788;transform:rotate(-1deg);transform-origin:left center}
  body:not(.hub-open):not(.course-open) .launch-title-default{display:none}
  body:not(.hub-open):not(.course-open) .launch-title-art{display:block;width:100%;height:auto;transform:rotate(-1deg)}
  body:not(.hub-open):not(.course-open) .launch-tagline{display:block;margin:8px 0 0 1.3em!important;font:400 .76rem/1 GochiHand,system-ui,sans-serif!important;letter-spacing:.08em;color:rgba(255,247,251,.68);white-space:nowrap;transform:rotate(-1.4deg)}
  body:not(.hub-open):not(.course-open) .intro-copy>p{display:none}
  body:not(.hub-open):not(.course-open) .intro-visual{z-index:2;right:3%;bottom:12%;width:67%;min-height:58vh;opacity:.98}
  body:not(.hub-open):not(.course-open) .hero-art{z-index:2;right:0;bottom:0;width:100%;max-height:58vh;object-fit:contain;filter:drop-shadow(0 18px 28px rgba(0,0,0,.28))}
  body:not(.hub-open):not(.course-open) .enter-app{position:absolute;z-index:5;left:50%;right:auto;bottom:calc(24px + env(safe-area-inset-bottom));width:min(64vw,270px);min-height:58px;margin:0;border:1px solid rgba(255,255,255,.2);border-radius:20px;background:linear-gradient(135deg,rgba(255,255,255,.17),rgba(255,255,255,.07));color:#fff8fb;box-shadow:inset 0 1px 0 rgba(255,255,255,.26),0 16px 42px rgba(0,0,0,.38);backdrop-filter:blur(22px) saturate(135%);font-size:.94rem;transform:translateX(-50%)}
  body:not(.hub-open):not(.course-open) .enter-app span{color:#ff0788}
  body:not(.hub-open):not(.course-open) .enter-app:hover{background:linear-gradient(135deg,rgba(255,255,255,.23),rgba(255,255,255,.1))}
  body:not(.hub-open):not(.course-open) ::selection{background:#ff0788;color:#08080a}
}

/* Quiet launch motion; the character remains intentionally static. */
@media(max-width:700px){
  body:not(.hub-open):not(.course-open)::before{animation:liquid-drift-a 9s ease-in-out infinite alternate}
  body:not(.hub-open):not(.course-open)::after{animation:liquid-drift-b 11s ease-in-out infinite alternate}
  body:not(.hub-open):not(.course-open) .intro h1 span{opacity:0;animation:ink-arrive .65s var(--ease) forwards}
  body:not(.hub-open):not(.course-open) .intro h1 span:nth-child(2){animation-delay:.14s}
  body:not(.hub-open):not(.course-open) .beat-orbit{position:absolute;z-index:0;right:13%;bottom:9%;width:33%;aspect-ratio:1;border:1px solid rgba(82,100,153,.32);border-radius:50%;animation:beat-pulse 2.4s ease-out infinite}
  body:not(.hub-open):not(.course-open) .beat-orbit::after{content:"";position:absolute;inset:18%;border:1px solid rgba(82,100,153,.24);border-radius:inherit;animation:beat-pulse-inner 2.4s .28s ease-out infinite}
  body:not(.hub-open):not(.course-open) .enter-app{overflow:hidden;opacity:0;animation:glass-rise .55s .34s var(--ease) forwards}
  body:not(.hub-open):not(.course-open) .enter-app::after{content:"";position:absolute;top:-40%;bottom:-40%;left:-35%;width:24%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.72),transparent);transform:skewX(-18deg);animation:glass-sheen 4.8s 1.1s ease-in-out infinite}
}
@keyframes ink-arrive{from{opacity:0;transform:translateY(18px) rotate(-1.5deg)}to{opacity:1;transform:none}}
@keyframes beat-pulse{0%{opacity:0;transform:scale(.72)}20%{opacity:.65}75%,100%{opacity:0;transform:scale(1.34)}}
@keyframes beat-pulse-inner{0%{opacity:0;transform:scale(.78)}24%{opacity:.8}78%,100%{opacity:0;transform:scale(1.55)}}
@keyframes liquid-drift-a{to{transform:translate3d(8vw,3vh,0) scale(1.08)}}
@keyframes liquid-drift-b{to{transform:translate3d(-7vw,-4vh,0) scale(.94)}}
@keyframes glass-rise{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
@keyframes glass-sheen{0%,58%{transform:translateX(0) skewX(-18deg);opacity:0}64%{opacity:.75}78%,100%{transform:translateX(610%) skewX(-18deg);opacity:0}}
@media(prefers-reduced-motion:reduce){
  body:not(.hub-open):not(.course-open)::before,
  body:not(.hub-open):not(.course-open)::after,
  body:not(.hub-open):not(.course-open) .intro h1 span,
  body:not(.hub-open):not(.course-open) .beat-orbit,
  body:not(.hub-open):not(.course-open) .beat-orbit::after,
  body:not(.hub-open):not(.course-open) .enter-app,
  body:not(.hub-open):not(.course-open) .enter-app::after{animation:none!important;opacity:1}
}

/* Approved brand system: hand-drawn punk accents, ink-black canvas, liquid glass. */
:root{
  --paper:#09090b;
  --sheet:rgba(255,255,255,.075);
  --ink:#f7f4f1;
  --muted:#aaa5a8;
  --rule:rgba(255,255,255,.15);
  --action:#ff087f;
  --blue:#ff087f;
  --oxblood:#ff087f;
  --soft-blue:rgba(255,8,127,.12);
  --shadow:0 18px 44px rgba(0,0,0,.28);
}
body.hub-open,body.course-open{background:#09090b;color:#f7f4f1}
body.hub-open::before,body.hub-open::after,
body.course-open::before,body.course-open::after{content:"";position:fixed;z-index:-1;width:42vw;height:42vw;max-width:520px;max-height:520px;border-radius:50%;filter:blur(72px);pointer-events:none;background:rgba(255,8,127,.08)}
body.hub-open::before,body.course-open::before{left:-22vw;top:10vh}
body.hub-open::after,body.course-open::after{right:-22vw;bottom:-14vh;opacity:.7}
body.hub-open .masthead,body.course-open .masthead{background:rgba(12,12,14,.64);border:0;backdrop-filter:blur(22px) saturate(140%)}
body.hub-open .wordmark,body.course-open .wordmark{color:#fff}
body.hub-open .sound-gate{border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.11);color:#fff;box-shadow:inset 0 1px 0 rgba(255,255,255,.16);backdrop-filter:blur(18px)}
body.hub-open.audio-ready .sound-gate{border-color:rgba(255,8,127,.35);background:rgba(255,8,127,.16);color:#fff}
body.hub-open main,body.course-open main{isolation:isolate}
body.hub-open .course-catalog{min-height:calc(100dvh - 160px);align-content:center;gap:clamp(24px,5vw,72px);padding:clamp(24px,5vw,64px) 0;border:0}
.hub-open .course-heading h2{position:relative;width:max-content;color:#fff;font-size:clamp(2rem,5vw,3.4rem);font-weight:850;letter-spacing:-.045em}
.hub-open .course-heading h2::after{content:"";position:absolute;left:2px;bottom:-9px;width:72%;height:5px;border-radius:99px;background:var(--action);transform:rotate(-2deg)}
.hub-open .course-heading p{margin-top:23px;color:#bbb5ba;font-size:.9rem;letter-spacing:.04em}
.hub-open .course-list{gap:11px;border:0}
.hub-open .course-list li{border:0}
.hub-open .course-list button,.hub-open .course-list li>div{position:relative;min-height:76px;grid-template-columns:48px minmax(0,1fr) auto;gap:14px;padding:14px 18px;border:1px solid rgba(255,255,255,.15);border-radius:22px;background:linear-gradient(145deg,rgba(255,255,255,.12),rgba(255,255,255,.045));color:#f7f4f1;box-shadow:inset 0 1px 0 rgba(255,255,255,.13),0 12px 32px rgba(0,0,0,.18);backdrop-filter:blur(22px) saturate(135%);transition:transform .2s var(--ease),border-color .2s,background .2s}
.hub-open .course-list button:hover{transform:translateY(-2px);border-color:rgba(255,8,127,.55);background:linear-gradient(145deg,rgba(255,8,127,.13),rgba(255,255,255,.05))}
.hub-open .course-list .is-current button{border-color:rgba(255,8,127,.65);background:linear-gradient(110deg,rgba(255,8,127,.18),rgba(255,255,255,.055) 68%)}
.hub-open .course-list .is-current button::before{content:"";position:absolute;left:-1px;top:15px;bottom:15px;width:3px;border-radius:3px;background:var(--action);box-shadow:0 0 14px rgba(255,8,127,.8)}
.hub-open .course-number{color:#ff4c9e;font-size:.82rem;font-weight:800;letter-spacing:.04em}
.hub-open .course-list strong{font-size:1rem;font-weight:750}
.hub-open .course-list small{margin-top:4px;color:#b8b1b7;font-size:.76rem}
.hub-open .course-state{color:#ff5aa5;font-size:.72rem}
.hub-open .course-list li.is-upcoming{display:block;opacity:.68}
.course-open .workspace-bar{position:sticky;top:8px;background:rgba(255,255,255,.075);border:1px solid rgba(255,255,255,.15);border-radius:20px;color:#fff;box-shadow:inset 0 1px 0 rgba(255,255,255,.12),0 14px 34px rgba(0,0,0,.2);backdrop-filter:blur(24px) saturate(145%)}
.course-open .workspace-back{border-color:rgba(255,255,255,.19);border-radius:14px;background:rgba(255,255,255,.08);color:#fff}
.course-open .workspace-back:hover{border-color:rgba(255,8,127,.6);background:rgba(255,8,127,.12)}
.course-open .workspace-bar>div span{color:#aaa5a8}
.course-open .lesson{border:1px solid rgba(255,255,255,.14);border-radius:24px;background:linear-gradient(145deg,rgba(255,255,255,.095),rgba(255,255,255,.04));color:#f7f4f1;box-shadow:inset 0 1px 0 rgba(255,255,255,.1),0 18px 44px rgba(0,0,0,.22);backdrop-filter:blur(20px)}
.course-open .lesson-copy>p:last-child,.course-open .lesson-progress span{color:#b8b2b7}
.course-open .active-course,.course-open .lesson-progress .is-current{color:#ff4c9e}
.course-open .lesson-progress span{border-color:rgba(255,255,255,.15)}
.course-open .lesson-progress .is-current,.course-open .lesson-progress .is-done{border-color:var(--action);color:#fff}
.course-open .text-button{border:1px solid rgba(255,255,255,.16);border-radius:14px;background:rgba(255,255,255,.075);color:#fff;text-align:center}
.course-open .text-button:hover{background:rgba(255,255,255,.13)}
.course-open .coach-message{border:1px solid rgba(255,8,127,.22);border-radius:15px;background:rgba(255,8,127,.1);color:#ffc0dc}
.course-open .count-sheet{border:1px solid rgba(255,255,255,.16);border-radius:16px;background:rgba(255,255,255,.045);color:#fff;overflow:hidden;backdrop-filter:blur(16px)}
.course-open .count-grid span{border-color:rgba(255,255,255,.12)}
.course-open .count-grid span.is-beat{background:rgba(255,8,127,.32);color:#fff}
.course-open .orientation-guide{border:1px solid rgba(255,255,255,.16)!important;background:rgba(255,255,255,.07)!important;color:#fff!important;backdrop-filter:blur(20px)}
.course-open .orientation-guide span{color:#b8b2b7!important}
.course-open .orientation-guide .primary-button,.course-open .phrase-actions .primary-button{background:var(--action);color:#fff;box-shadow:none}
.course-open .phrase-lesson{border:1px solid rgba(255,255,255,.14);border-radius:24px;background:linear-gradient(145deg,rgba(255,255,255,.08),rgba(255,255,255,.035));color:#fff;box-shadow:inset 0 1px 0 rgba(255,255,255,.09),0 18px 44px rgba(0,0,0,.2);backdrop-filter:blur(20px)}
.course-open .phrase-copy h2,.course-open .phrase-feedback{color:#ff5aa5}
.course-open .phrase-copy>p,.course-open .phrase-readout span{color:#c0b9bf}
.course-open .phrase-purpose,.course-open .phrase-readout{border-color:rgba(255,255,255,.15)}
.course-open .phrase-bars{border:1px solid rgba(255,255,255,.14);border-radius:15px;background:rgba(5,5,7,.42)}
.course-open .phrase-bars>div,.course-open .phrase-bars b,.course-open .phrase-bars span{border-color:rgba(255,255,255,.12)}
.course-open .phrase-bars span{color:#fff}
.course-open .phrase-bars span.is-current{background:var(--action);color:#fff}
.course-open .phrase-control{background:rgba(255,255,255,.08)}
.course-open .phrase-hit{border:1px solid rgba(255,255,255,.18);border-radius:16px;background:rgba(255,8,127,.16);color:#fff}
.course-open .phrase-hit:not(:disabled):active{background:var(--action);transform:scale(.985)}
.course-open .phrase-success{border:1px solid rgba(255,8,127,.32);border-radius:18px;background:rgba(255,8,127,.14);color:#fff}
.course-open .phrase-next{grid-column:1/-1;min-height:42px;border:1px solid rgba(255,8,127,.48);border-radius:13px;background:rgba(255,8,127,.15);color:#fff;font:700 .78rem/1.25 system-ui,"Microsoft YaHei UI",sans-serif;cursor:pointer}
.app-course-module .count-sheet,.app-course-module .lesson,.app-course-module .phrase-lesson,.app-course-module .orientation-guide,.app-course-module .console-mode-bar,.app-course-module .mixer,.app-course-module .proof,.app-course-module .free-mix{display:none!important}
.app-course-module .module-lesson{width:min(760px,100%);min-height:510px;margin:30px auto;padding:clamp(22px,4vw,40px);display:flex;flex-direction:column;justify-content:center;gap:20px;border:1px solid rgba(255,255,255,.15);border-radius:26px;background:linear-gradient(145deg,rgba(255,255,255,.1),rgba(255,255,255,.035));color:#fff;box-shadow:inset 0 1px 0 rgba(255,255,255,.12),0 22px 55px rgba(0,0,0,.28);backdrop-filter:blur(24px) saturate(140%)}
.module-lesson[hidden]{display:none!important}
.module-label{font-size:.72rem;font-weight:800;letter-spacing:.11em;color:#ff67ae}
.module-copy h2{margin:8px 0 7px;font-size:clamp(1.75rem,4.5vw,2.8rem);line-height:1.08;letter-spacing:-.035em}
.module-copy>p{margin:0;color:#c0bac0;line-height:1.55}
.module-progress{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}
.module-progress span{height:4px;border-radius:9px;background:rgba(255,255,255,.16)}
.module-progress span.is-current,.module-progress span.is-done{background:#ff1688;box-shadow:0 0 12px rgba(255,8,127,.3)}
.module-choice{display:grid;gap:9px;margin:0;padding:0;border:0}
.module-choice legend{margin-bottom:9px;color:#ffb5d5;font-size:.78rem;font-weight:750}
.module-choice button{min-height:56px;display:flex;align-items:center;gap:13px;padding:10px 14px;border:1px solid rgba(255,255,255,.15);border-radius:16px;background:rgba(0,0,0,.2);color:#fff;text-align:left;cursor:pointer;transition:background .18s,border-color .18s,transform .18s}
.module-choice button:hover:not(:disabled){border-color:rgba(255,8,127,.55);background:rgba(255,8,127,.1);transform:translateY(-1px)}
.module-choice button>span{width:28px;height:28px;display:grid;place-items:center;flex:none;border-radius:50%;background:rgba(255,255,255,.1);color:#ff69ae;font-size:.75rem;font-weight:800}
.module-choice button.is-correct{border-color:rgba(255,8,127,.7);background:rgba(255,8,127,.17)}
.module-choice button.is-wrong{border-color:rgba(255,255,255,.12);color:#aaa5a8}
.module-range-wrap{display:grid;gap:24px}
.module-bpm-readout,.module-meter-readout{display:flex;align-items:center;justify-content:space-between;gap:12px;color:#c0bac0}
.module-bpm-readout{min-height:78px;padding:16px 18px;border:1px solid rgba(255,255,255,.14);border-radius:18px;background:rgba(0,0,0,.22)}
.module-bpm-readout strong,.module-meter-readout strong{color:#ff65ab;font-size:1.4rem;font-variant-numeric:tabular-nums}
.module-meter{padding:16px;border:1px solid rgba(255,255,255,.14);border-radius:18px;background:rgba(0,0,0,.22)}
.module-meter-track{height:18px;margin:14px 0 7px;padding:3px;border-radius:12px;background:linear-gradient(90deg,#368c6b 0 50%,#a7883b 50% 75%,#8e3a50 75%);overflow:hidden}
.module-meter-track i{display:block;width:25%;height:100%;border-radius:8px;background:#fff;box-shadow:0 0 10px rgba(255,255,255,.5);transition:width .16s}
.module-meter-track i.is-hot{background:#ff8da6}
.module-meter-scale{display:flex;justify-content:space-between;color:#b8b2b7;font-size:.64rem;font-variant-numeric:tabular-nums}
.module-meter>small{display:block;margin-top:9px;color:#b8b2b7;font-size:.7rem}
.module-range{display:grid;grid-template-columns:1fr auto;align-items:center;gap:8px 16px;color:#e7e1e5;font-weight:700}
.module-range input{grid-column:1/-1;width:100%;accent-color:#ff087f}
.module-range output{color:#ff69ae;font-size:.8rem;font-variant-numeric:tabular-nums}
.module-action-card{min-height:142px;display:grid;align-content:center;justify-items:center;gap:9px;border:1px solid rgba(255,255,255,.13);border-radius:19px;background:rgba(0,0,0,.2);text-align:center}
.module-action-icon{color:#ff1688;font-size:2rem;font-weight:800}
.module-action-card p{margin:0;font-weight:750}.module-action-card small{color:#b8b2b7;font-size:.72rem}
.module-feedback{min-height:26px;margin:0;color:#ff9bc7;font-size:.86rem;line-height:1.5}
.module-actions{display:flex;justify-content:space-between;align-items:center;gap:12px}
.module-actions .text-button{min-height:46px;padding:0 16px}
.module-actions .primary-button,.module-finish .primary-button{min-height:48px;padding:0 20px;border:0;border-radius:15px;background:#ff087f;color:#fff;box-shadow:0 10px 25px rgba(255,8,127,.18);cursor:pointer}
.module-actions .primary-button[hidden]{display:none}
.module-finish{display:grid;grid-template-columns:48px minmax(0,1fr);align-items:center;gap:14px;padding:20px;border:1px solid rgba(255,8,127,.3);border-radius:20px;background:rgba(255,8,127,.12)}
.module-finish[hidden]{display:none!important}
.module-finish>span{width:44px;height:44px;display:grid;place-items:center;border-radius:50%;background:#ff087f;color:#fff;font-size:1.35rem;font-weight:850}
.module-finish strong{font-size:1rem}.module-finish p{margin:4px 0 0;color:#c0bac0;font-size:.77rem}
.module-finish button{grid-column:1/-1;width:100%}
.course-open .mixer{border:1px solid rgba(255,255,255,.13);background:rgba(4,4,6,.76);box-shadow:0 22px 60px rgba(0,0,0,.4)}
.course-open .deck{border-color:rgba(255,255,255,.12);background:linear-gradient(155deg,rgba(31,30,34,.96),rgba(17,17,20,.96));box-shadow:inset 0 1px 0 rgba(255,255,255,.08)}
.course-open .deck-head output,.course-open .deck-head h2 span{color:#ff65ab}
.course-open .wave{border-color:rgba(255,255,255,.15)}
.course-open .wave i{background:var(--action)}
.course-open .play-button,.course-open .sync-button{border-color:rgba(255,255,255,.2);border-radius:14px;background:rgba(255,255,255,.07);color:#fff}
.course-open .play-button.is-playing,.course-open .play-button.is-next,.course-open .sync-button.is-next{border-color:rgba(255,8,127,.68);background:rgba(255,8,127,.19);color:#fff;box-shadow:0 0 0 1px rgba(255,8,127,.18),0 8px 26px rgba(255,8,127,.12)}
.course-open .handoff{border:1px solid rgba(255,255,255,.15);background:linear-gradient(160deg,rgba(255,255,255,.1),rgba(255,255,255,.035));box-shadow:inset 0 1px 0 rgba(255,255,255,.1);backdrop-filter:blur(20px)}
.course-open .handoff-title,.course-open .handoff-scale{color:#ded8dd}
.course-open .handoff-title{border-color:rgba(255,255,255,.13);background:rgba(0,0,0,.22)}
.course-open .handoff-scale span.is-current{background:rgba(255,8,127,.22);color:#fff}
.course-open .handoff output{color:#ff65ab}
.course-open .control-bank{border-color:rgba(255,255,255,.14)}
.course-open .control-bank label{color:#e7e1e5}
.course-open input[type=range]::-webkit-slider-runnable-track,.course-open .handoff input::-webkit-slider-runnable-track{background:rgba(255,255,255,.3)}
.course-open input[type=range]::-webkit-slider-thumb,.course-open .handoff input::-webkit-slider-thumb{border-color:#fff;background:#ff1688}
.course-open .control-bank input.is-next::-webkit-slider-thumb{box-shadow:0 0 0 5px rgba(255,8,127,.2)}
.course-open .app-tabbar{border-color:rgba(255,255,255,.16);background:rgba(30,29,33,.67);box-shadow:inset 0 1px 0 rgba(255,255,255,.14),0 16px 38px rgba(0,0,0,.36);backdrop-filter:blur(26px) saturate(160%)}
.course-open .app-tab{color:#b7b1b7}
.course-open .app-tab.is-active{background:rgba(255,8,127,.17);color:#ff58a5;box-shadow:inset 0 0 0 1px rgba(255,8,127,.2)}
.course-open .app-tab:active{background:rgba(255,255,255,.11)}
.course-open .tour-panel{border:1px solid rgba(255,255,255,.2);border-radius:24px;background:rgba(31,29,34,.86);color:#fff;box-shadow:0 22px 64px rgba(0,0,0,.42);backdrop-filter:blur(24px)}
.course-open .tour-panel>p:first-child{color:#ff69ae}
.course-open .tour-panel .primary-button{background:var(--action);color:#fff;box-shadow:none}
.course-open .tour-panel .text-button{background:transparent}
body.hub-open .app-tabbar{border-color:rgba(255,255,255,.16);background:rgba(30,29,33,.67);box-shadow:inset 0 1px 0 rgba(255,255,255,.14),0 16px 38px rgba(0,0,0,.36);backdrop-filter:blur(26px) saturate(160%)}
body.hub-open .app-tab{color:#b7b1b7}
body.hub-open .app-tab.is-active{background:rgba(255,8,127,.17);color:#ff58a5;box-shadow:inset 0 0 0 1px rgba(255,8,127,.2)}
body.hub-open .app-tab:active{background:rgba(255,255,255,.11)}

@media(max-width:700px){
  body.hub-open,body.course-open{min-height:100dvh;overflow-x:hidden}
  body.hub-open .masthead{position:fixed;left:0;right:0;top:0;min-height:58px;padding-inline:20px;background:linear-gradient(180deg,rgba(9,9,11,.9),rgba(9,9,11,.15));}
  body.hub-open main{width:calc(100% - 40px);padding-top:58px}
  body.hub-open .course-catalog{min-height:calc(100dvh - 134px);padding:8px 0 22px;align-content:center;gap:17px}
  .hub-open .course-heading h2{font-size:2rem}
  .hub-open .course-heading p{margin-top:20px;font-size:.76rem}
  .hub-open .course-list{gap:6px}
  .hub-open .course-list li.is-upcoming{display:block;opacity:.72}
  .hub-open .course-list button,.hub-open .course-list li>div{min-height:57px;grid-template-columns:30px minmax(0,1fr) auto;gap:8px;padding:7px 11px;border-radius:17px}
  .hub-open .course-list strong{font-size:.81rem;line-height:1.1}
  .hub-open .course-list small{display:block;margin-top:3px;font-size:.62rem;line-height:1.15;white-space:nowrap}
  .hub-open .course-number{font-size:.7rem}
  .hub-open .course-state{font-size:.62rem}
  .course-open main{width:calc(100% - 28px)}
  .course-open .workspace-bar{margin:8px 0 12px;padding:8px;border-radius:18px}
  .course-open .workspace-back{min-height:42px;padding:0 10px;font-size:.78rem}
  .course-open .workspace-bar>div strong{font-size:.83rem}
  .course-open:not(.app-course-phrase):not(.console-focus) .lesson{padding:18px;border-radius:22px}
  .course-open:not(.app-course-phrase):not(.console-focus) .orientation-guide{border-radius:20px!important}
  .course-open.app-course-phrase .phrase-lesson{border:0;border-radius:0;background:transparent;box-shadow:none;backdrop-filter:none}
  .course-open .app-tabbar{left:16px;right:16px;bottom:calc(12px + env(safe-area-inset-bottom));border-radius:24px}
  .course-open .app-tab.is-active{border-radius:18px}
  .course-open .mixer{gap:8px;padding:7px;border-radius:22px}
  .course-open .deck,.course-open .handoff{border-radius:17px}
  .app-course-module main{height:auto;min-height:calc(100dvh - 76px);overflow:visible}
  .app-course-module .workspace-bar{margin-bottom:8px}
  .app-course-module .module-lesson{width:100%;min-height:0;height:calc(100dvh - 166px);margin:0 auto;padding:20px 16px;gap:15px;border-radius:23px}
  .app-course-module .module-copy h2{font-size:1.72rem}
  .module-choice{gap:7px}
  .module-choice button{min-height:50px;padding:8px 11px;border-radius:15px;font-size:.85rem}
  .module-range-wrap{gap:16px}
  .module-bpm-readout{min-height:66px}
  .course-open.app-course-phrase .phrase-success:not([hidden]){display:grid!important;grid-template-columns:32px minmax(0,1fr);gap:8px;margin-top:6px;padding:10px;border-radius:15px}
  .course-open.app-course-phrase .phrase-next{min-height:38px}
}
@media(max-width:700px) and (orientation:portrait){
  .course-open:not(.app-course-phrase):not(.console-focus) .lesson{border-color:rgba(255,255,255,.14);background:linear-gradient(145deg,rgba(255,255,255,.095),rgba(255,255,255,.04));box-shadow:inset 0 1px 0 rgba(255,255,255,.1),0 18px 44px rgba(0,0,0,.22)}
  .course-open:not(.app-course-phrase):not(.console-focus) .lesson-actions .text-button{background:rgba(255,255,255,.075)}
}
@media(prefers-reduced-motion:reduce){
  body.hub-open::before,body.hub-open::after,body.course-open::before,body.course-open::after{animation:none!important}
}

/* 2026 visual reset: minimal rhythm, Buzz green + purple, waveform as the signature. */
:root{
  --paper:#f6f6f1;
  --sheet:#ffffff;
  --ink:#242329;
  --muted:#706e76;
  --rule:#deddd8;
  --action:#7253b7;
  --blue:#7253b7;
  --buzz-green:#79cf43;
  --buzz-green-soft:#e7f6dc;
  --buzz-purple:#7253b7;
  --buzz-purple-soft:#eee8f8;
  --shadow:0 12px 30px rgba(53,46,68,.09);
}
body.hub-open,body.course-open,body.works-open{background:var(--paper);color:var(--ink)}
body.hub-open::before,body.hub-open::after,
body.course-open::before,body.course-open::after{display:none}
body.hub-open .masthead,body.course-open .masthead{
  background:rgba(246,246,241,.82);
  border-bottom:1px solid rgba(36,35,41,.07);
  backdrop-filter:blur(22px) saturate(120%);
}
body.hub-open .wordmark,body.course-open .wordmark{color:var(--ink)}
body.hub-open .sound-gate,body.course-open .sound-gate{
  border:1px solid rgba(114,83,183,.18);
  background:rgba(255,255,255,.72);
  color:var(--buzz-purple);
  box-shadow:0 6px 18px rgba(53,46,68,.07);
}
body.hub-open.audio-ready .sound-gate,body.course-open.audio-ready .sound-gate{
  border-color:rgba(121,207,67,.42);
  background:var(--buzz-green-soft);
  color:#315a1b;
}

body.hub-open main{width:min(760px,calc(100% - 40px))}
body.hub-open .course-catalog{
  min-height:auto;
  grid-template-columns:1fr;
  align-content:start;
  gap:28px;
  padding:38px 0 118px;
}
.hub-open .course-heading{padding:0 2px}
.hub-open .course-heading .learning-greeting{
  display:block;
  margin:0 0 4px;
  color:var(--muted);
  font-size:.86rem;
  letter-spacing:0;
}
.hub-open .course-heading h2{
  width:auto;
  margin:0;
  color:var(--ink);
  font-size:clamp(2rem,6vw,3rem);
  font-weight:800;
  letter-spacing:-.04em;
}
.hub-open .course-heading h2::after{display:none}
.hub-open .course-heading>p:last-child{
  margin:10px 0 0;
  color:var(--muted);
  font-size:.9rem;
  letter-spacing:0;
}
.hub-open .course-list{
  position:relative;
  display:grid;
  gap:22px;
  margin:0;
  padding:0 0 0 36px;
}
.hub-open .course-list::before{
  content:"";
  position:absolute;
  left:14px;
  top:28px;
  bottom:28px;
  width:2px;
  background:#d9d8d3;
}
.hub-open .course-list li{position:relative;opacity:1}
.hub-open .course-list li::before{
  content:"";
  position:absolute;
  z-index:2;
  left:-30px;
  top:34px;
  width:14px;
  height:14px;
  border:2px solid #aaa9a4;
  border-radius:50%;
  background:var(--paper);
}
.hub-open .course-list li.is-current::before{
  border-color:var(--buzz-green);
  background:var(--buzz-green);
  box-shadow:0 0 0 5px var(--buzz-green-soft);
}
.hub-open .course-list li.is-complete::before{
  border-color:var(--buzz-purple);
  background:var(--buzz-purple);
}
.hub-open .course-list button,.hub-open .course-list li>div{
  min-height:132px;
  grid-template-columns:minmax(0,1fr) 132px;
  grid-template-rows:1fr auto;
  gap:8px 18px;
  padding:18px;
  border:0;
  border-radius:16px;
  background:#fff;
  color:var(--ink);
  box-shadow:0 10px 0 rgba(53,46,68,.08),0 17px 30px rgba(53,46,68,.06);
  backdrop-filter:none;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.hub-open .course-list button:hover{
  transform:translateY(-2px);
  border-color:transparent;
  background:#fff;
  box-shadow:0 12px 0 rgba(114,83,183,.12),0 20px 34px rgba(53,46,68,.08);
}
.hub-open .course-list .is-current button{
  border:0;
  background:#fff;
}
.hub-open .course-list .is-current button::before{display:none}
.hub-open .course-number{display:none}
.hub-open .learning-copy{align-self:center}
.hub-open .course-list strong{
  color:var(--ink);
  font-size:1.14rem;
  font-weight:790;
  line-height:1.18;
}
.hub-open .course-list small{
  max-width:31ch;
  margin-top:9px;
  color:var(--muted);
  font-size:.76rem;
  line-height:1.45;
}
.hub-open .course-state{
  grid-column:1;
  align-self:end;
  width:max-content;
  color:var(--buzz-purple);
  font-size:.72rem;
  font-weight:800;
}
.hub-open .course-list li.is-current .course-state{color:#3d6f20}
.learning-thumb{
  grid-column:2;
  grid-row:1 / 3;
  align-self:stretch;
  min-height:94px;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:5px;
  padding:18px;
  border-radius:13px;
  overflow:hidden;
}
.learning-thumb.theme-green{background:var(--buzz-green-soft);color:#4d9725}
.learning-thumb.theme-purple{background:var(--buzz-purple-soft);color:var(--buzz-purple)}
.learning-thumb.theme-mix{background:#ecebea;color:var(--buzz-purple)}
.learning-thumb i{
  width:5px;
  height:34%;
  border-radius:5px;
  background:currentColor;
  animation:learning-wave 1.55s ease-in-out infinite;
  transform-origin:center;
}
.learning-thumb i:nth-child(2){height:64%;animation-delay:-.32s}
.learning-thumb i:nth-child(3){height:92%;animation-delay:-.72s}
.learning-thumb i:nth-child(4){height:55%;animation-delay:-1.02s}
.learning-thumb i:nth-child(5){height:76%;animation-delay:-.5s}
.theme-mix i:nth-child(odd){color:#4f9529;background:currentColor}
@keyframes learning-wave{0%,100%{transform:scaleY(.58)}45%{transform:scaleY(1)}70%{transform:scaleY(.76)}}

.app-tabbar,
body.hub-open .app-tabbar,
body.course-open .app-tabbar,
body.works-open .app-tabbar{
  border:1px solid rgba(55,49,68,.1);
  background:rgba(255,255,255,.82);
  color:var(--muted);
  box-shadow:0 14px 36px rgba(53,46,68,.13);
  backdrop-filter:blur(24px) saturate(130%);
}
body.works-open .app-tabbar{display:grid}
body.hub-open .app-tab,body.course-open .app-tab,body.works-open .app-tab{color:#8a878f}
body.hub-open .app-tab span,body.course-open .app-tab span,body.works-open .app-tab span{font-size:.72rem}
body.hub-open .app-tab.is-active,body.course-open .app-tab.is-active,body.works-open .app-tab.is-active{
  background:var(--buzz-purple-soft);
  color:var(--buzz-purple);
  box-shadow:none;
}

body.works-open .course-catalog,
body.works-open .intro,
body.works-open .count-sheet,
body.works-open .lesson,
body.works-open .phrase-lesson,
body.works-open .module-lesson,
body.works-open .orientation-guide,
body.works-open .console-mode-bar,
body.works-open .mixer,
body.works-open .proof,
body.works-open .free-mix{display:none!important}
.works-library{
  width:min(760px,100%);
  min-height:calc(100dvh - 150px);
  margin:0 auto;
  padding:50px 0 120px;
}
.works-library[hidden]{display:none!important}
.works-heading h2{margin:0;font-size:clamp(2rem,6vw,3rem);line-height:1.05;letter-spacing:-.04em}
.works-heading p{margin:10px 0 0;color:var(--muted)}
.works-empty{
  min-height:380px;
  margin-top:34px;
  display:grid;
  align-content:center;
  justify-items:center;
  gap:12px;
  padding:38px;
  border-radius:18px;
  background:#fff;
  box-shadow:var(--shadow);
  text-align:center;
}
.works-empty strong{font-size:1.2rem}
.works-empty p{max-width:28ch;margin:0;color:var(--muted);font-size:.86rem}
.works-empty .primary-button{margin-top:12px;border:0;background:var(--buzz-purple);color:#fff}
.works-wave{height:86px;display:flex;align-items:center;gap:7px;color:var(--buzz-green)}
.works-wave i{width:7px;height:35%;border-radius:8px;background:currentColor;animation:learning-wave 1.6s ease-in-out infinite}
.works-wave i:nth-child(2),.works-wave i:nth-child(6){height:60%;animation-delay:-.3s}
.works-wave i:nth-child(3),.works-wave i:nth-child(5){height:90%;animation-delay:-.7s}
.works-wave i:nth-child(4){height:48%;animation-delay:-1.05s}

body.course-open main{color:var(--ink)}
.course-open .workspace-bar{
  background:rgba(255,255,255,.82);
  border:1px solid rgba(55,49,68,.1);
  color:var(--ink);
  box-shadow:0 10px 28px rgba(53,46,68,.08);
}
.course-open .workspace-back,.course-open .text-button{
  border-color:rgba(114,83,183,.16);
  background:var(--buzz-purple-soft);
  color:var(--buzz-purple);
}
.course-open .workspace-back:hover,.course-open .text-button:hover{background:#e4dcf3;border-color:rgba(114,83,183,.3)}
.course-open .workspace-bar>div span{color:var(--muted)}
.course-open .lesson,.course-open .phrase-lesson,.app-course-module .module-lesson{
  border:0;
  background:#fff;
  color:var(--ink);
  box-shadow:var(--shadow);
  backdrop-filter:none;
}
.course-open .lesson-copy>p:last-child,.course-open .lesson-progress span,
.course-open .phrase-copy>p,.course-open .phrase-readout span,
.module-copy>p{color:var(--muted)}
.course-open .active-course,.course-open .lesson-progress .is-current,
.course-open .phrase-copy h2,.course-open .phrase-feedback,.module-label{color:var(--buzz-purple)}
.module-progress span{background:#dedce2}
.module-progress span.is-current,.module-progress span.is-done{background:var(--buzz-green);box-shadow:none}
.module-actions .primary-button,.module-finish .primary-button,
.course-open .orientation-guide .primary-button,.course-open .phrase-actions .primary-button{
  background:var(--buzz-purple);
  color:#fff;
  box-shadow:none;
}
.module-choice button{
  border-color:#dedce2;
  background:#f8f7f8;
  color:var(--ink);
}
.module-choice button:hover:not(:disabled){border-color:rgba(114,83,183,.35);background:var(--buzz-purple-soft)}
.module-choice button>span{background:var(--buzz-purple-soft);color:var(--buzz-purple)}
.module-feedback,.module-range output,.module-bpm-readout strong,.module-meter-readout strong{color:var(--buzz-purple)}
.course-open .coach-message{
  border-color:rgba(114,83,183,.18);
  background:var(--buzz-purple-soft);
  color:#554087;
}
.course-open .count-sheet{
  border-color:#dedce2;
  background:#fff;
  color:var(--ink);
  backdrop-filter:none;
}
.course-open .count-grid span{border-color:#e8e6e2}
.course-open .count-grid span.is-beat{background:var(--buzz-green-soft);color:#315a1b}
.course-open .orientation-guide{
  border-color:#dedce2!important;
  background:#fff!important;
  color:var(--ink)!important;
  backdrop-filter:none;
}
.course-open .orientation-guide span{color:var(--muted)!important}
.course-open .phrase-purpose,.course-open .phrase-readout{border-color:#dedce2}
.course-open .phrase-bars{border-color:#dedce2;background:#f7f7f4}
.course-open .phrase-bars>div,.course-open .phrase-bars b,.course-open .phrase-bars span{border-color:#e3e1dc}
.course-open .phrase-bars span{color:var(--ink)}
.course-open .phrase-bars span.is-current{background:var(--buzz-green);color:#203413}
.course-open .phrase-hit{
  border-color:rgba(114,83,183,.2);
  background:var(--buzz-purple-soft);
  color:var(--buzz-purple);
}
.course-open .phrase-hit:not(:disabled):active{background:var(--buzz-purple);color:#fff}
.course-open .phrase-success,.module-finish{
  border-color:rgba(121,207,67,.38);
  background:var(--buzz-green-soft);
  color:var(--ink);
}
.course-open .phrase-next{
  border-color:rgba(114,83,183,.28);
  background:var(--buzz-purple);
  color:#fff;
}
.module-finish>span{background:var(--buzz-green);color:#203413}
.module-finish p{color:var(--muted)}
.module-bpm-readout,.module-meter,.module-action-card{
  border-color:#dedce2;
  background:#f7f7f4;
}
.module-action-icon{color:var(--buzz-green)}
.module-action-card small,.module-meter-scale,.module-meter>small{color:var(--muted)}
.module-range input{accent-color:var(--buzz-purple)}
.course-open .mixer{
  border-color:#d9d7df;
  background:#eae9e6;
  box-shadow:0 20px 50px rgba(53,46,68,.14);
}
.course-open .deck{
  border-color:#dedce2;
  background:#fff;
  color:var(--ink);
  box-shadow:0 8px 22px rgba(53,46,68,.08);
}
.course-open .deck-head output,.course-open .deck-head h2 span{color:var(--buzz-purple)}
.course-open .wave{border-color:#dedce2;background:#f5f5f1}
.course-open .wave canvas{filter:none;opacity:.68}
.course-open .wave i{background:var(--buzz-green)}
.course-open .play-button,.course-open .sync-button{
  border-color:#d8d5de;
  background:#f7f7f4;
  color:var(--ink);
}
.course-open .play-button.is-playing,.course-open .play-button.is-next,.course-open .sync-button.is-next{
  border-color:rgba(114,83,183,.4);
  background:var(--buzz-purple-soft);
  color:var(--buzz-purple);
  box-shadow:none;
}
.course-open .handoff{
  border-color:#dedce2;
  background:#fff;
  color:var(--ink);
  box-shadow:0 8px 22px rgba(53,46,68,.08);
  backdrop-filter:none;
}
.course-open .handoff-title{border-color:#dedce2;background:#f7f7f4;color:var(--ink)}
.course-open .handoff-scale{color:var(--muted)}
.course-open .handoff-scale span.is-current{background:var(--buzz-green-soft);color:#315a1b}
.course-open .handoff output{color:var(--buzz-purple)}
.course-open .control-bank{border-color:#dedce2}
.course-open .control-bank label{color:var(--ink)}
.course-open input[type=range]::-webkit-slider-runnable-track,.course-open .handoff input::-webkit-slider-runnable-track{background:#cbc8d0}
.course-open input[type=range]::-webkit-slider-thumb,.course-open .handoff input::-webkit-slider-thumb{border-color:#fff;background:var(--buzz-purple)}
.course-open .control-bank input.is-next::-webkit-slider-thumb{box-shadow:0 0 0 5px rgba(121,207,67,.25)}
.course-open .tour-panel{
  border-color:#dedce2;
  background:rgba(255,255,255,.94);
  color:var(--ink);
  box-shadow:0 22px 64px rgba(53,46,68,.2);
}
.course-open .tour-panel>p:first-child{color:var(--buzz-purple)}

@media(max-width:700px){
  body.hub-open .masthead{
    background:rgba(246,246,241,.9);
    border-bottom:1px solid rgba(36,35,41,.05);
  }
  body.hub-open main{width:calc(100% - 34px);padding-top:68px}
  body.hub-open .course-catalog{min-height:auto;padding:24px 0 112px;gap:26px}
  .hub-open .course-heading h2{font-size:2rem}
  .hub-open .course-heading>p:last-child{margin-top:8px;font-size:.8rem}
  .hub-open .course-list{gap:24px;padding-left:30px}
  .hub-open .course-list::before{left:11px}
  .hub-open .course-list li::before{left:-25px;top:31px;width:12px;height:12px}
  .hub-open .course-list button,.hub-open .course-list li>div{
    min-height:122px;
    grid-template-columns:minmax(0,1fr) 112px;
    padding:16px;
    border-radius:16px;
  }
  .hub-open .course-list strong{font-size:1rem;line-height:1.2}
  .hub-open .course-list small{display:block;white-space:normal;font-size:.7rem;line-height:1.4}
  .learning-thumb{min-height:88px;padding:14px}
  .works-library{padding:34px 3px 116px}
  .works-empty{min-height:360px;padding:28px 20px}
}
@media(max-width:390px){
  .hub-open .course-list button,.hub-open .course-list li>div{grid-template-columns:minmax(0,1fr) 94px}
  .hub-open .course-list small{font-size:.66rem}
  .learning-thumb{padding:12px;gap:4px}
}
@media(prefers-reduced-motion:reduce){
  .learning-thumb i,.works-wave i{animation:none}
}

/* Soft spatial background and translucent widgets from the approved reference. */
body.hub-open,body.course-open,body.works-open{
  min-height:100dvh;
  background:
    radial-gradient(circle at 12% 10%,rgba(164,207,232,.92) 0,rgba(164,207,232,.58) 24%,transparent 48%),
    radial-gradient(circle at 88% 22%,rgba(193,171,235,.8) 0,rgba(193,171,235,.42) 26%,transparent 50%),
    radial-gradient(circle at 72% 78%,rgba(183,225,173,.72) 0,rgba(183,225,173,.28) 24%,transparent 48%),
    radial-gradient(circle at 18% 88%,rgba(180,201,239,.78) 0,rgba(180,201,239,.34) 28%,transparent 52%),
    #dce7ef;
  background-attachment:fixed;
}
body.hub-open::before,body.course-open::before,
body.hub-open::after,body.course-open::after{
  display:block;
  content:"";
  position:fixed;
  z-index:-1;
  pointer-events:none;
  border-radius:48% 52% 46% 54%;
  filter:blur(46px);
}
body.hub-open::before,body.course-open::before{
  width:58vw;
  height:34vh;
  left:-12vw;
  top:30vh;
  background:rgba(121,207,67,.24);
  transform:rotate(-12deg);
}
body.hub-open::after,body.course-open::after{
  width:64vw;
  height:38vh;
  right:-22vw;
  bottom:8vh;
  background:rgba(114,83,183,.25);
  transform:rotate(16deg);
}
body.hub-open .masthead,body.course-open .masthead{
  background:linear-gradient(180deg,rgba(224,235,243,.54),rgba(224,235,243,.12));
  border-bottom:1px solid rgba(255,255,255,.36);
  backdrop-filter:blur(22px) saturate(120%);
}
body.hub-open .sound-gate,body.course-open .sound-gate{
  border:1px solid rgba(255,255,255,.66);
  background:rgba(255,255,255,.28);
  color:#403362;
  box-shadow:0 12px 26px rgba(70,69,94,.1),inset 0 1px 0 rgba(255,255,255,.7);
  backdrop-filter:blur(18px) saturate(130%);
}
.hub-open .course-heading .learning-greeting{color:#4e4a58}
.hub-open .course-heading h2{color:#fff;text-shadow:0 2px 14px rgba(62,61,88,.16)}
.hub-open .course-heading>p:last-child{color:#494654}
.hub-open .course-list::before{background:rgba(255,255,255,.58)}
.hub-open .course-list li::before{
  border-color:rgba(255,255,255,.8);
  background:rgba(255,255,255,.45);
  box-shadow:0 4px 12px rgba(67,65,91,.1);
  backdrop-filter:blur(10px);
}
.hub-open .course-list li.is-current::before{
  border-color:rgba(255,255,255,.92);
  background:var(--buzz-green);
  box-shadow:0 0 0 5px rgba(239,255,231,.45),0 6px 18px rgba(58,99,37,.15);
}
.hub-open .course-list li.is-complete::before{
  border-color:rgba(255,255,255,.9);
  background:var(--buzz-purple);
}
.hub-open .course-list button,.hub-open .course-list li>div{
  border:1px solid rgba(255,255,255,.64);
  background:rgba(255,255,255,.43);
  box-shadow:0 16px 34px rgba(67,65,91,.11),inset 0 1px 0 rgba(255,255,255,.72);
  backdrop-filter:blur(22px) saturate(125%);
}
.hub-open .course-list button:hover{
  border-color:rgba(255,255,255,.82);
  background:rgba(255,255,255,.56);
  box-shadow:0 19px 38px rgba(67,65,91,.14),inset 0 1px 0 rgba(255,255,255,.82);
}
.hub-open .course-list .is-current button{border:1px solid rgba(255,255,255,.75);background:rgba(255,255,255,.52)}
.learning-thumb{
  border:1px solid rgba(255,255,255,.48);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.6);
  backdrop-filter:blur(12px);
}
.learning-thumb.theme-green{background:rgba(204,242,183,.5);color:#4d9725}
.learning-thumb.theme-purple{background:rgba(224,210,250,.52);color:#7253b7}
.learning-thumb.theme-mix{background:rgba(239,238,246,.47);color:#7253b7}

.app-tabbar,
body.hub-open .app-tabbar,
body.course-open .app-tabbar,
body.works-open .app-tabbar{
  border:1px solid rgba(255,255,255,.7);
  background:rgba(255,255,255,.46);
  box-shadow:0 16px 38px rgba(67,65,91,.14),inset 0 1px 0 rgba(255,255,255,.78);
  backdrop-filter:blur(28px) saturate(140%);
}
body.hub-open .app-tab.is-active,body.course-open .app-tab.is-active,body.works-open .app-tab.is-active{
  background:rgba(234,223,251,.68);
  color:#5b4098;
}
.works-empty{
  border:1px solid rgba(255,255,255,.7);
  background:rgba(255,255,255,.46);
  box-shadow:0 18px 42px rgba(67,65,91,.12),inset 0 1px 0 rgba(255,255,255,.78);
  backdrop-filter:blur(24px) saturate(130%);
}
.works-heading h2{color:#fff;text-shadow:0 2px 14px rgba(62,61,88,.16)}
.works-heading p{color:#494654}

.course-open .workspace-bar,
.course-open .lesson,.course-open .phrase-lesson,.app-course-module .module-lesson,
.course-open .count-sheet,.course-open .orientation-guide,
.course-open .deck,.course-open .handoff{
  border:1px solid rgba(255,255,255,.68);
  background:rgba(255,255,255,.49);
  box-shadow:0 16px 34px rgba(67,65,91,.11),inset 0 1px 0 rgba(255,255,255,.76);
  backdrop-filter:blur(24px) saturate(128%);
}
.course-open .mixer{
  border:1px solid rgba(255,255,255,.6);
  background:rgba(232,236,241,.38);
  box-shadow:0 20px 46px rgba(67,65,91,.14),inset 0 1px 0 rgba(255,255,255,.64);
  backdrop-filter:blur(24px);
}
.module-bpm-readout,.module-meter,.module-action-card,
.course-open .handoff-title,.course-open .wave{
  border-color:rgba(255,255,255,.58);
  background:rgba(255,255,255,.38);
}

@media(max-width:700px){
  body.hub-open .masthead{
    background:linear-gradient(180deg,rgba(217,232,243,.7),rgba(217,232,243,.16));
    border-bottom-color:rgba(255,255,255,.4);
  }
  .hub-open .course-list button,.hub-open .course-list li>div{
    background:rgba(255,255,255,.5);
    backdrop-filter:blur(18px) saturate(125%);
  }
}

/* Final cascade lock for the learning orbit. */
body.hub-open:not(.course-open){overflow:hidden;background:#eeeade}
body.hub-open:not(.course-open)::before,body.hub-open:not(.course-open)::after{display:none}
body.hub-open:not(.course-open) main{width:100%;max-width:none;padding:66px 0 0}
body.hub-open:not(.course-open) .course-catalog{position:relative;display:block;width:100%;height:calc(100dvh - 66px);min-height:590px;padding:0;overflow:hidden;background:linear-gradient(108deg,rgba(121,207,67,.1),transparent 28%),linear-gradient(252deg,rgba(114,83,183,.12),transparent 31%),#eeeade}
body.hub-open:not(.course-open) .course-heading{position:absolute;z-index:7;left:50%;bottom:90px;width:100%;padding:0 24px;transform:translateX(-50%);text-align:center;pointer-events:none}
body.hub-open:not(.course-open) .course-heading h2{width:auto;margin:0;color:#17161b;font-size:clamp(1.45rem,5vw,2.1rem);font-weight:900;letter-spacing:-.035em;text-shadow:none}
body.hub-open:not(.course-open) .course-list{position:absolute;z-index:6;top:18px;left:0;width:100%;display:flex;gap:14px;margin:0;padding:18px max(22px,calc(50vw - 78px)) 42px;overflow-x:auto;overflow-y:hidden;scroll-snap-type:x mandatory;scrollbar-width:none;overscroll-behavior-x:contain}
body.hub-open:not(.course-open) .course-list::-webkit-scrollbar{display:none}
body.hub-open:not(.course-open) .course-list::before,body.hub-open:not(.course-open) .course-list li::before{display:none}
body.hub-open:not(.course-open) .course-list li{flex:0 0 156px;display:block;border:0;scroll-snap-align:center}
body.hub-open:not(.course-open) .course-list li:nth-child(1),body.hub-open:not(.course-open) .course-list li:nth-child(7){transform:translateY(58px) rotate(-7deg)}
body.hub-open:not(.course-open) .course-list li:nth-child(2),body.hub-open:not(.course-open) .course-list li:nth-child(6){transform:translateY(24px) rotate(-4deg)}
body.hub-open:not(.course-open) .course-list li:nth-child(3),body.hub-open:not(.course-open) .course-list li:nth-child(5){transform:translateY(5px) rotate(-2deg)}
body.hub-open:not(.course-open) .course-list li:nth-child(4){transform:none}
body.hub-open:not(.course-open) .course-list button{position:relative;width:156px;height:126px;min-height:0;display:grid;grid-template-columns:1fr auto;grid-template-rows:50px 34px;gap:6px;padding:13px 12px 11px;border:0;border-radius:15px;background:rgba(255,255,255,.74);color:#17161b;box-shadow:0 12px 26px rgba(43,39,55,.12);backdrop-filter:blur(12px);transition:transform .22s cubic-bezier(.2,.8,.2,1),background .22s}
body.hub-open:not(.course-open) .course-list li:nth-child(odd) button{background:rgba(220,248,197,.84)}
body.hub-open:not(.course-open) .course-list li:nth-child(even) button{background:rgba(227,214,250,.86)}
body.hub-open:not(.course-open) .course-list button:hover,body.hub-open:not(.course-open) .course-list button:focus-visible{transform:translateY(-7px) rotate(1.5deg);background:#fff;outline:3px solid #17161b;outline-offset:3px}
body.hub-open:not(.course-open) .course-list button svg{display:block;width:48px;height:48px;align-self:center;fill:none;stroke:currentColor;stroke-width:2.8;stroke-linecap:round;stroke-linejoin:round}
body.hub-open:not(.course-open) .course-list li:first-child button svg{fill:var(--buzz-green);stroke:#17161b}
body.hub-open:not(.course-open) .course-list .course-number{display:block;justify-self:end;font:800 .76rem/1 system-ui,sans-serif}
body.hub-open:not(.course-open) .course-list strong{position:absolute;left:50%;top:calc(100% + 9px);z-index:8;width:max-content;max-width:160px;padding:7px 10px;border-radius:8px;background:#17161b;color:#fff;font-size:.76rem;line-height:1.2;opacity:0;transform:translate(-50%,-4px);pointer-events:none;transition:opacity .18s,transform .18s}
body.hub-open:not(.course-open) .course-list button:hover strong,body.hub-open:not(.course-open) .course-list button:focus-visible strong{opacity:1;transform:translate(-50%,0)}
body.hub-open:not(.course-open) .course-wave{display:block;grid-column:1/-1;width:100%;height:34px}
body.hub-open:not(.course-open) .course-character{position:absolute;z-index:4;left:50%;bottom:122px;height:min(61vh,600px);transform:translateX(-50%);pointer-events:none}
body.hub-open:not(.course-open) .course-character img{display:block;width:auto;height:100%;filter:drop-shadow(0 18px 18px rgba(35,31,44,.16))}
body.hub-open:not(.course-open) .hub-wave-canvas{position:absolute;z-index:1;inset:16% -8% auto;width:116%;height:56%;pointer-events:none}
@media(max-width:700px){
  body.hub-open:not(.course-open) main{padding-top:60px}
  body.hub-open:not(.course-open) .course-catalog{height:calc(100dvh - 60px);min-height:540px}
  body.hub-open:not(.course-open) .course-list{top:4px;gap:12px;padding-top:12px}
  body.hub-open:not(.course-open) .course-list li{flex-basis:146px}
  body.hub-open:not(.course-open) .course-list button{width:146px;height:116px;grid-template-rows:44px 30px;padding:11px}
  body.hub-open:not(.course-open) .course-list button svg{width:42px;height:42px}
  body.hub-open:not(.course-open) .course-character{bottom:110px;height:min(57vh,510px)}
  body.hub-open:not(.course-open) .course-heading{bottom:78px}
  body.hub-open:not(.course-open) .course-heading h2{font-size:1.55rem}
  body.hub-open:not(.course-open) .hub-wave-canvas{inset:19% -13% auto;width:126%;height:48%}
}

/* True semicircular lesson carousel — final cascade. */
body.hub-open:not(.course-open) .course-list{top:4px;height:190px;display:block;padding:0;overflow:visible;touch-action:pan-y}
body.hub-open:not(.course-open) .course-list li,body.hub-open:not(.course-open) .course-list li:nth-child(n){position:absolute;left:var(--orbit-x,50%);top:var(--orbit-y,5px);width:104px;height:94px;display:block;opacity:var(--orbit-opacity,1);transform:translateX(-50%) scale(var(--orbit-scale,1));transition:left .36s cubic-bezier(.2,.85,.2,1),top .36s cubic-bezier(.2,.85,.2,1),transform .36s cubic-bezier(.2,.85,.2,1),opacity .25s}
body.hub-open:not(.course-open) .course-list button{width:104px;height:94px;min-height:0;grid-template-rows:39px 26px;padding:9px;border-radius:14px}
body.hub-open:not(.course-open) .course-list button svg{width:38px;height:38px}
body.hub-open:not(.course-open) .course-list strong{display:none}
body.hub-open:not(.course-open) .course-list .course-wave{height:26px}
body.hub-open:not(.course-open) .course-list .is-orbit-current button{outline:3px solid #17161b;outline-offset:3px;box-shadow:0 16px 30px rgba(43,39,55,.18)}
.orbit-current{position:absolute;z-index:12;left:50%;top:137px;min-height:38px;padding:8px 18px;border:0;border-radius:99px;background:#17161b;color:#fff;font:800 .82rem/1 system-ui,"Microsoft YaHei UI",sans-serif;transform:translateX(-50%);cursor:pointer}
.orbit-arrow{position:absolute;z-index:13;top:111px;width:42px;height:42px;display:grid;place-items:center;border:0;border-radius:50%;background:rgba(255,255,255,.82);color:#17161b;box-shadow:0 8px 20px rgba(43,39,55,.13);cursor:pointer}
.orbit-arrow svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round}.orbit-prev{left:18px}.orbit-next{right:18px}
.orbit-arrow:focus-visible,.orbit-current:focus-visible{outline:3px solid var(--buzz-green);outline-offset:3px}
body.hub-open:not(.course-open) .course-character{bottom:100px;height:min(55vh,520px)}
body.hub-open:not(.course-open) .hub-wave-canvas{inset:24% -13% auto;height:42%}
@media(max-width:700px){
  body.hub-open:not(.course-open) .course-list{top:2px;height:180px}
  body.hub-open:not(.course-open) .course-list li,body.hub-open:not(.course-open) .course-list li:nth-child(n){width:92px;height:86px}
  body.hub-open:not(.course-open) .course-list button{width:92px;height:86px;grid-template-rows:34px 24px;padding:8px}
  body.hub-open:not(.course-open) .course-list button svg{width:33px;height:33px}
  body.hub-open:not(.course-open) .course-list .course-number{font-size:.66rem}
  .orbit-current{top:130px}.orbit-arrow{top:107px;width:38px;height:38px}.orbit-prev{left:12px}.orbit-next{right:12px}
  body.hub-open:not(.course-open) .course-character{bottom:98px;height:min(53vh,470px)}
}

/* Inertial frosted lesson wheel — final cascade. */
body.hub-open:not(.course-open) .course-list{top:76px;height:205px;cursor:grab;user-select:none}
body.hub-open:not(.course-open) .course-list.is-dragging{cursor:grabbing}
body.hub-open:not(.course-open) .course-list li,body.hub-open:not(.course-open) .course-list li:nth-child(n){transform:translateX(-50%) translateX(var(--drag-x,0px)) scale(var(--orbit-scale,1));will-change:transform,left,top}
body.hub-open:not(.course-open) .course-list.is-dragging li{transition:none}
body.hub-open:not(.course-open) .course-list button{overflow:visible;border:1px solid rgba(255,255,255,.72);background:rgba(255,255,255,.36)!important;box-shadow:inset 0 1px 0 rgba(255,255,255,.85),0 15px 30px rgba(46,40,61,.14);backdrop-filter:blur(22px) saturate(135%)}
body.hub-open:not(.course-open) .course-list button svg,body.hub-open:not(.course-open) .course-list .course-wave{visibility:hidden}
body.hub-open:not(.course-open) .course-list button::after{content:"";position:absolute;inset:8px 9px 10px;z-index:0;background-image:url("./assets/characters/lesson-card-faces-v1.png");background-repeat:no-repeat;background-size:700% auto;background-position:0 50%;filter:drop-shadow(0 3px 3px rgba(32,28,40,.13))}
body.hub-open:not(.course-open) .course-list li:nth-child(2) button::after{background-position:16.666% 50%}body.hub-open:not(.course-open) .course-list li:nth-child(3) button::after{background-position:33.333% 50%}body.hub-open:not(.course-open) .course-list li:nth-child(4) button::after{background-position:50% 50%}body.hub-open:not(.course-open) .course-list li:nth-child(5) button::after{background-position:66.666% 50%}body.hub-open:not(.course-open) .course-list li:nth-child(6) button::after{background-position:83.333% 50%}body.hub-open:not(.course-open) .course-list li:nth-child(7) button::after{background-position:100% 50%}
body.hub-open:not(.course-open) .course-list .course-number{position:absolute;z-index:2;right:8px;top:8px;padding:4px 5px;border-radius:6px;background:rgba(255,255,255,.72);color:#40335f;backdrop-filter:blur(6px)}
body.hub-open:not(.course-open) .course-list strong{display:block;top:calc(100% + 8px);opacity:0;transform:translate(-50%,-3px)}
body.hub-open:not(.course-open) .course-list button:hover strong,body.hub-open:not(.course-open) .course-list button:focus-visible strong{opacity:1;transform:translate(-50%,0)}
body.hub-open:not(.course-open) .course-list .is-orbit-current button{background:rgba(255,255,255,.53)!important}
body.hub-open:not(.course-open) .course-character{bottom:108px;height:min(45vh,420px)}
body.hub-open:not(.course-open) .course-heading{bottom:78px}
.orbit-current{top:275px}.orbit-arrow{top:47%;transform:translateY(-50%)}.orbit-prev{left:12%}.orbit-next{right:12%}
@media(max-width:700px){body.hub-open:not(.course-open) .course-list{top:64px;height:194px}body.hub-open:not(.course-open) .course-character{bottom:104px;height:min(42vh,380px)}.orbit-current{top:250px}.orbit-arrow{top:48%;width:42px;height:42px}.orbit-prev{left:8%}.orbit-next{right:8%}}
@media(prefers-reduced-motion:reduce){body.hub-open:not(.course-open) .course-list li{transition:opacity .15s}}

html:has(body.hub-open:not(.course-open)){height:100%;overflow:hidden;scrollbar-width:none}
html:has(body.hub-open:not(.course-open))::-webkit-scrollbar{display:none}
body.hub-open:not(.course-open){height:100dvh;max-height:100dvh;overflow:hidden!important}
body.hub-open:not(.course-open) main{height:100dvh;max-height:100dvh;overflow:hidden}
body.hub-open:not(.course-open) .course-catalog{max-height:calc(100dvh - 60px);overflow:hidden}
body.hub-open:not(.course-open) .course-list{scrollbar-width:none}
body.hub-open:not(.course-open) .course-list::-webkit-scrollbar{display:none}
body.hub-open:not(.course-open) .course-list button,
body.hub-open:not(.course-open) .course-list button:hover,
body.hub-open:not(.course-open) .course-list button:focus-visible,
body.hub-open:not(.course-open) .course-list .is-orbit-current button{
  outline:none;
  border-color:rgba(255,255,255,.72);
}
body.hub-open:not(.course-open) .course-list .is-orbit-current button{
  box-shadow:inset 0 1px 0 rgba(255,255,255,.95),0 18px 34px rgba(46,40,61,.18);
}

/* Home scene aligned with the learning hub. */
.home-wave-canvas,.hero-card{display:none}
body:not(.hub-open):not(.course-open){background:#eeeade;color:#17161b}
body:not(.hub-open):not(.course-open)::before,body:not(.hub-open):not(.course-open)::after{display:none}
body:not(.hub-open):not(.course-open) .masthead{position:absolute;top:0;left:0;right:0;background:transparent;border-bottom:0;backdrop-filter:none}
body:not(.hub-open):not(.course-open) .wordmark{color:#17161b}
body:not(.hub-open):not(.course-open) main{width:100%;max-width:none;margin:0}
body:not(.hub-open):not(.course-open) .intro{position:relative;min-height:100dvh;display:grid;grid-template-columns:minmax(250px,.72fr) minmax(470px,1.28fr);align-items:center;gap:0;padding:clamp(92px,12vh,132px) clamp(24px,6vw,96px) 82px;overflow:hidden;background:linear-gradient(108deg,rgba(121,207,67,.1),transparent 28%),linear-gradient(252deg,rgba(114,83,183,.13),transparent 32%),#eeeade}
body:not(.hub-open):not(.course-open) .intro-copy{position:relative;z-index:8;width:auto;padding-top:3vh}
body:not(.hub-open):not(.course-open) .product-kicker{display:inline-flex;border-color:rgba(23,22,27,.26);background:rgba(255,255,255,.32);backdrop-filter:blur(14px)}
body:not(.hub-open):not(.course-open) .launch-lockup{position:static;width:auto}
body:not(.hub-open):not(.course-open) .launch-title-default{display:block}
body:not(.hub-open):not(.course-open) .launch-title-art{display:none}
body:not(.hub-open):not(.course-open) .launch-title{position:relative;isolation:isolate;max-width:8.5ch;color:#17161b;font-family:SmileySans,"Microsoft YaHei UI",sans-serif;font-size:clamp(2.7rem,5.1vw,5.5rem);font-weight:400;font-style:oblique;line-height:1;letter-spacing:-.02em;transform:none}
body:not(.hub-open):not(.course-open) .launch-title::before{display:none}
body:not(.hub-open):not(.course-open) .launch-title-default{display:block;padding:0;background:none}
body:not(.hub-open):not(.course-open) .slogan-line{display:table;width:auto;margin:0 0 .1em;padding:.01em .09em .045em;background:#ff087f;white-space:nowrap}
body:not(.hub-open):not(.course-open) .launch-tagline{display:table;width:auto;padding:.2em .42em .24em;background:#ff087f;color:#000!important}
body:not(.hub-open):not(.course-open) .launch-tagline{margin:13px 0 0!important;color:#625b70;font:700 .78rem/1.2 system-ui,"Microsoft YaHei UI",sans-serif!important;letter-spacing:.14em;transform:none}
body:not(.hub-open):not(.course-open) .intro-copy>p{display:block;color:#4e4a58}
body:not(.hub-open):not(.course-open) .product-facts{display:flex}
body:not(.hub-open):not(.course-open) .intro-visual{position:relative;z-index:2;right:auto;bottom:auto;width:100%;min-height:min(76vh,760px);display:grid;place-items:center;opacity:1;pointer-events:auto}
body:not(.hub-open):not(.course-open) .home-wave-canvas{display:block;position:absolute;z-index:0;left:-38vw;top:21%;width:calc(100% + 46vw);height:55%;pointer-events:none}
body:not(.hub-open):not(.course-open) .hero-card{position:absolute;z-index:1;left:50%;top:51%;width:min(54%,470px);height:min(54vh,500px);display:block;overflow:hidden;transform:translate(-50%,-50%) rotate(-1.6deg);border:1px solid rgba(255,255,255,.78);border-radius:30px;background:linear-gradient(145deg,rgba(255,255,255,.58),rgba(222,208,249,.2) 44%,rgba(121,207,67,.1));box-shadow:inset 0 1px 0 rgba(255,255,255,.96),inset 0 -30px 60px rgba(114,83,183,.08),0 30px 70px rgba(58,46,79,.16);backdrop-filter:blur(36px) saturate(180%) contrast(106%);transition:transform .48s cubic-bezier(.16,1,.3,1),background .48s ease,box-shadow .48s ease}
body:not(.hub-open):not(.course-open) .hero-card::before{content:"";position:absolute;inset:18px;border:1px solid rgba(255,255,255,.58);border-radius:20px;background:linear-gradient(115deg,rgba(255,255,255,.3),transparent 34%,rgba(255,255,255,.12) 68%,transparent);transition:transform .6s cubic-bezier(.16,1,.3,1)}
body:not(.hub-open):not(.course-open) .hero-card::after{content:"";position:absolute;width:72%;height:38%;left:-38%;top:-8%;border-radius:50%;background:rgba(255,255,255,.48);filter:blur(22px);transform:rotate(-20deg);transition:transform .7s cubic-bezier(.16,1,.3,1),opacity .45s ease;opacity:.72}
body:not(.hub-open):not(.course-open) .intro-visual:hover .hero-card{transform:translate(-50%,calc(-50% - 9px)) rotate(-1.6deg);background:linear-gradient(145deg,rgba(255,255,255,.64),rgba(222,208,249,.24) 44%,rgba(121,207,67,.13));box-shadow:inset 0 1px 0 #fff,inset 0 -36px 68px rgba(114,83,183,.1),0 38px 80px rgba(58,46,79,.2)}
body:not(.hub-open):not(.course-open) .intro-visual:hover .hero-card::before{transform:none}
body:not(.hub-open):not(.course-open) .intro-visual:hover .hero-card::after{transform:rotate(-20deg);opacity:.86}
body:not(.hub-open):not(.course-open) .hero-card span,body:not(.hub-open):not(.course-open) .hero-card strong{position:absolute;color:rgba(65,51,95,.62);font:800 .72rem/1 system-ui,sans-serif;letter-spacing:.13em}
body:not(.hub-open):not(.course-open) .hero-card span{left:24px;top:25px}
body:not(.hub-open):not(.course-open) .hero-card strong{right:24px;bottom:25px}
body:not(.hub-open):not(.course-open) .hero-art{position:relative;z-index:3;right:auto;bottom:auto;width:auto;height:min(62vh,590px);max-width:84%;max-height:none;object-fit:contain;pointer-events:none;filter:drop-shadow(0 24px 28px rgba(43,34,61,.2));transform:translateY(8%)}
body:not(.hub-open):not(.course-open) .beat-orbit{z-index:2;right:15%;bottom:19%;width:28%;border-color:rgba(121,207,67,.42)}
body:not(.hub-open):not(.course-open) .session-ticket{display:none}
body:not(.hub-open):not(.course-open) .enter-app{background:#17161b;color:#fff;border:0;box-shadow:0 14px 30px rgba(34,29,44,.2);backdrop-filter:none}
body:not(.hub-open):not(.course-open) .enter-app span{color:#79cf43}
body:not(.hub-open):not(.course-open) .enter-app:hover{background:#7253b7;color:#fff}

@media(max-width:700px){
  body:not(.hub-open):not(.course-open) .masthead{background:transparent}
  body:not(.hub-open):not(.course-open) .intro{min-height:100dvh;display:block;padding:60px 18px 86px}
  body:not(.hub-open):not(.course-open) .intro-copy{position:static;width:100%;padding:0}
  body:not(.hub-open):not(.course-open) .product-kicker{display:none}
  body:not(.hub-open):not(.course-open) .launch-lockup{position:absolute;z-index:2;left:22px;top:82px;width:min(62vw,290px)}
  body:not(.hub-open):not(.course-open) .launch-title{font-size:clamp(2rem,9.2vw,2.8rem);max-width:8.2ch}
  body:not(.hub-open):not(.course-open) .launch-tagline{font-size:.58rem!important;margin-top:8px!important}
  body:not(.hub-open):not(.course-open) .intro-copy>p,body:not(.hub-open):not(.course-open) .product-facts{display:none}
  body:not(.hub-open):not(.course-open) .intro-visual{position:absolute;z-index:auto;inset:0;width:100%;min-height:0}
  body:not(.hub-open):not(.course-open) .home-wave-canvas{left:-16%;top:26%;width:132%;height:48%}
  body:not(.hub-open):not(.course-open) .hero-card{top:54%;width:min(64vw,315px);height:min(47vh,410px);border-radius:24px}
  body:not(.hub-open):not(.course-open) .hero-art{position:absolute;left:50%;top:25%;width:min(76vw,420px);height:auto;max-width:none;max-height:60vh;transform:translateX(-50%);object-fit:contain}
  body:not(.hub-open):not(.course-open) .beat-orbit{right:3%;bottom:18%;width:38%}
  body:not(.hub-open):not(.course-open) .enter-app{position:absolute;z-index:8;left:50%;bottom:calc(20px + env(safe-area-inset-bottom));width:min(72vw,290px);min-height:56px;margin:0;transform:translateX(-50%);border-radius:18px}
}
@media(prefers-reduced-motion:reduce){body:not(.hub-open):not(.course-open) .hero-card,body:not(.hub-open):not(.course-open) .hero-card::before,body:not(.hub-open):not(.course-open) .hero-card::after{transition:none}}

/* The centered lesson entry explains the outcome instead of repeating the card title. */
body.hub-open:not(.course-open) .orbit-current{
  z-index:3;
  width:auto;
  min-width:0;
  max-width:min(70vw,270px);
  min-height:48px;
  padding:11px 20px;
  border:1px solid rgba(255,255,255,.76);
  border-radius:18px;
  background:linear-gradient(135deg,rgba(255,255,255,.42),rgba(226,215,249,.18));
  color:#292334;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.96),0 14px 32px rgba(56,47,72,.14);
  backdrop-filter:blur(24px) saturate(170%);
  font-size:.78rem;
  line-height:1.35;
  transition:transform .28s cubic-bezier(.16,1,.3,1),background .24s ease;
}
body.hub-open:not(.course-open) .orbit-current:hover{background:linear-gradient(135deg,rgba(255,255,255,.58),rgba(220,205,248,.28));transform:translateX(-50%) translateY(-3px)}

body.hub-open .masthead,body.course-open .masthead{border-bottom:0!important;background:transparent!important;box-shadow:none!important;backdrop-filter:none!important}

body.hub-open:not(.course-open) .course-list li.is-orbit-edge{filter:none}
body.hub-open:not(.course-open) .course-list li.is-orbit-edge button{background:rgba(255,255,255,.36)!important}

.lesson-feedback-avatar{width:58px;height:58px;flex:0 0 auto;filter:drop-shadow(0 8px 10px rgba(49,40,68,.14))}
.lesson-actions{align-items:center}
.character-feedback{display:flex;align-items:center;gap:12px;min-height:58px}
.character-feedback>.pose-avatar{width:58px;height:58px;flex:0 0 auto;filter:drop-shadow(0 8px 10px rgba(49,40,68,.14))}
.character-feedback .phrase-feedback,.character-feedback .module-feedback{flex:1;margin:0}
.pose-avatar{display:block;border-radius:50%;background-color:rgba(35,31,44,.88);background-image:url("./assets/characters/dj-character-sheet-v3-lavender-spikes.png");background-repeat:no-repeat;background-size:665% auto;box-shadow:inset 0 0 0 1px rgba(255,255,255,.62)}
.pose-a{background-position:31% 98%}.pose-b{background-position:50% 98%}.pose-c{background-position:70% 98%}
.lesson-feedback-avatar,.character-feedback>.pose-avatar{display:none}
.character-reaction[hidden]{display:none}
.character-reaction{position:fixed;z-index:80;bottom:100px;left:50%;transform:translateX(-50%);width:max-content;max-width:calc(100vw - 32px);display:flex;align-items:center;gap:10px;padding:0;border:0;border-radius:0;background:transparent;color:#292334;box-shadow:none;font-size:14px}
.character-reaction:not([hidden]) .reaction-face{animation:reaction-pop .42s cubic-bezier(.16,1,.3,1) both}
@keyframes reaction-pop{from{opacity:0;transform:translateY(22px) scale(.72)}70%{opacity:1;transform:translateY(-5px) scale(1.06)}to{opacity:1;transform:none}}
@media(prefers-reduced-motion:reduce){.character-reaction:not([hidden]) .reaction-face{animation:none}}
.reaction-face{flex-shrink:0;width:68px;height:72px;background-image:url("./assets/characters/dj-character-sheet-v3-lavender-spikes.png");background-size:384px 256px;background-position:-64px -168px;background-repeat:no-repeat}
.character-reaction[data-kind="correct"] .reaction-face{background-position:-282px -168px}
.character-reaction[data-kind="wrong"] .reaction-face{background-position:-202px -168px}
.reaction-copy{max-width:28ch;line-height:1.5}
.character-reaction button{border:0;border-radius:10px;padding:10px;background:#eee8f8;color:#453264;cursor:pointer;flex-shrink:0}
.character-reaction button[hidden]{display:none}

.module-mini-widget{width:100%;min-height:74px;margin:0 0 16px;padding:12px 14px;display:flex;align-items:center;justify-content:space-between;gap:16px;border:0;border-radius:16px;background:rgba(255,255,255,.48);color:#26212f;box-shadow:inset 0 1px 0 rgba(255,255,255,.9);backdrop-filter:blur(18px) saturate(150%);text-align:left;cursor:pointer}
.module-mini-widget span{display:grid;gap:5px}.module-mini-widget strong{font-size:.86rem}.module-mini-widget small{color:#5b5366;font-size:.7rem}
.module-mini-widget>i{width:112px;height:34px;display:flex;align-items:center;justify-content:center;gap:7px}
.module-mini-widget>i b{display:block;width:7px;height:12px;border-radius:6px;background:#7253b7;transition:height .22s ease,background .22s ease}
.module-mini-widget>i b:nth-child(2),.module-mini-widget>i b:nth-child(4){height:26px;background:#79cf43}.module-mini-widget>i b:nth-child(3){height:18px}
.module-mini-widget.is-playing>i b{animation:learning-wave .62s ease-in-out infinite alternate}.module-mini-widget.is-playing>i b:nth-child(2){animation-delay:-.18s}.module-mini-widget.is-playing>i b:nth-child(3){animation-delay:-.34s}.module-mini-widget.is-playing>i b:nth-child(4){animation-delay:-.1s}

.works-empty-character{display:block;width:min(78%,360px);max-height:43vh;margin:-24px auto -12px;object-fit:contain;filter:drop-shadow(0 18px 22px rgba(45,37,60,.16))}
.success-inner{position:relative;overflow:hidden;padding-top:clamp(210px,34vh,330px)}
.success-character{position:absolute;z-index:0;left:50%;top:10px;width:min(74%,350px);height:clamp(210px,34vh,330px);object-fit:contain;transform:translateX(-50%)}
.success-inner>*:not(.success-character){position:relative;z-index:1}
@media(max-width:700px){
  .lesson-feedback-avatar,.character-feedback>img{width:48px;height:48px}
  .module-mini-widget{min-height:66px;padding:10px 12px}.module-mini-widget>i{width:88px}
  .works-empty-character{width:min(86%,330px);max-height:38vh}
  .success-inner{padding-top:220px}.success-character{width:78%;height:230px}
}
@media(prefers-reduced-motion:reduce){.module-mini-widget.is-playing>i b{animation:none}}

.practice-brand,.practice-display,.practice-pads{display:none}
body.practice-open .practice-brand{position:fixed;z-index:76;top:0;left:0;min-height:64px;display:flex;align-items:center;padding:0 20px;margin:0}
body.practice-open .practice-brand a{color:#17161b;font-family:SmileySans,"Microsoft YaHei UI",sans-serif;font-size:1.55rem;font-weight:700;font-style:oblique;letter-spacing:-.02em;text-decoration:none}
body.practice-open .practice-display{display:block;background:#20262c;color:#dcebdc;border:8px solid #f4f2ee;border-radius:20px;margin:0 auto 16px;padding:16px;box-shadow:0 10px 24px #39374120}
.practice-display-head{display:flex;align-items:center;gap:12px;font-size:13px}
.practice-display-head strong{margin-right:auto}.practice-display-head button{padding:9px 14px;border:1px solid #8d9c96;border-radius:8px;color:#e2ecd9;background:#303b3a;cursor:pointer}
#practiceScope{display:block;width:100%;height:110px}
#practiceOrientation{margin:4px 0 0;font-size:13px;color:#bcc8c5}
body.practice-open .mixer{grid-template-columns:minmax(0,1fr) minmax(150px,.48fr) minmax(0,1fr)!important;min-height:0!important;padding:22px!important;gap:16px;background:linear-gradient(160deg,#fff,#e3e0d9)!important;border:1px solid #fff;border-radius:24px;box-shadow:0 14px 0 #cbc7c0,0 28px 42px #37333f25}
body.practice-open .deck{display:block;padding:12px;background:transparent;border:0;box-shadow:none;color:#38353c;min-width:0}
body.practice-open .deck-head{min-height:40px}
body.practice-open .deck-head h2{font-size:22px;color:#38353c}
body.practice-open .deck-head p,body.practice-open .deck-head h2>span,body.practice-open .deck .wave,body.practice-open .platter small{display:none}
body.practice-open .platter{margin:16px auto}
body.practice-open .platter-ring{width:min(25vw,290px);aspect-ratio:1;border:10px solid #d2cec8;background:radial-gradient(circle,#e4e0d7 0 20%,#faf9f4 21% 64%,#c4bfb9 65% 67%,#f8f6f1 68%);box-shadow:inset 0 3px 7px #fff,0 5px 7px #47404c24}
body.practice-open .platter-ring::after{content:"";position:absolute;inset:34%;background:#8d73be;clip-path:polygon(50% 0,62% 35%,100% 38%,70% 60%,82% 100%,50% 77%,18% 100%,30% 60%,0 38%,38% 35%)}
body.practice-open .platter-ring span{color:transparent}
body.practice-open .handoff{grid-column:2;grid-row:1;min-width:0;padding:18px 10px;background:#e8e5df;color:#39333f;border:0;box-shadow:inset 1px 0 #fff,inset -1px 0 #ccc6be}
body.practice-open .handoff::before{content:"FIRST MIX";color:#7c718c}
body.practice-open .handoff-title{background:transparent;border:0;color:#39333f;padding:6px;font-size:10px}
body.practice-open .handoff output{color:#4f455c;font-size:12px}
body.practice-open .deck-b{grid-column:3;grid-row:1}
body.practice-open .control-bank{grid-template-columns:1fr 1fr;min-height:0;border:0;padding:12px 0}
body.practice-open .control-bank label{color:#524959}
body.practice-open .control-bank label:nth-child(n+3){display:none}
body.practice-open .control-bank output{color:#7356a3}
body.practice-open .control-bank input{transform:none;width:100%;height:32px;margin:4px 0}
body.practice-open .transport-row{flex-wrap:wrap;gap:6px}
body.practice-open .play-button,body.practice-open .sync-button{background:#f8f7f3;color:#433a50;border:1px solid #b8b0a7;box-shadow:0 3px 0 #bfb7ae;border-radius:10px;min-height:42px;font-size:12px;padding:8px 12px}
body.practice-open .play-button.is-playing{background:#d8edbd}
body.practice-open .deck-meta{background:transparent;border:0;color:#51485c}
body.practice-open .practice-pads{display:flex;justify-content:center;gap:12px;margin:30px auto 0}
.practice-pads button{width:86px;height:52px;background:#f8f6f1;border:1px solid #c6bdb5;border-radius:8px;box-shadow:0 4px 0 #beb6ad;color:#5f4d7a;cursor:pointer}
.practice-pads button:active{transform:translateY(3px);box-shadow:0 1px 0 #beb6ad;background:#d6c6ed}
body.practice-open .free-mix-intro{display:none}
body.practice-open .free-mix{grid-template-columns:1fr!important}
@media(max-width:700px){body.practice-open .mixer{padding:8px!important;gap:4px;grid-template-columns:minmax(0,1fr) 88px minmax(0,1fr)!important}body.practice-open .deck{padding:4px}body.practice-open .platter-ring{border-width:5px;width:24vw}body.practice-open .handoff{padding:10px 3px}body.practice-open .handoff-title strong{font-size:7px}body.practice-open .handoff-scale{font-size:9px}body.practice-open .control-bank{grid-template-columns:1fr}body.practice-open .deck-meta{font-size:11px}.practice-display-head{flex-wrap:wrap}.practice-pads{gap:8px}.practice-pads button{width:68px}}
.course-widget[hidden]{display:none!important}
/* Lesson content uses document scrolling; only the hub wheel is viewport-locked. */
html:has(body.course-open){height:auto;overflow-x:hidden;overflow-y:auto}
body.course-open{height:auto;max-height:none;overflow-x:hidden;overflow-y:auto}
body.course-open main{height:auto;max-height:none;overflow:visible;padding-bottom:calc(110px + env(safe-area-inset-bottom))}
body.course-open .phrase-lesson,body.course-open .module-lesson{height:auto;max-height:none;overflow:visible}
.course-widget{width:min(720px,calc(100% - 32px));margin:12px auto 4px;padding:14px 16px;display:flex;align-items:center;justify-content:space-between;gap:18px;border:1px solid rgba(255,255,255,.72);border-radius:18px;background:rgba(255,255,255,.38);box-shadow:inset 0 1px 0 rgba(255,255,255,.9);backdrop-filter:blur(22px) saturate(155%)}
.course-widget>div:first-child{display:grid;gap:4px}.course-widget strong{font-size:.9rem}.course-widget small{font-size:.7rem;color:#5a5364}
.course-widget-controls{display:flex;gap:7px}.course-widget-controls button{min-width:58px;min-height:46px;padding:6px 8px;display:grid;place-items:center;gap:4px;border:0;border-radius:12px;background:rgba(255,255,255,.48);color:#332c3f;font-size:.66rem;font-weight:800;cursor:pointer}
.course-widget-controls i{display:block;width:26px;height:5px;border-radius:5px;background:#aaa1b8;transition:width .22s,background .22s}
.course-widget-controls button[aria-pressed="true"]{background:#211d27;color:#fff}.course-widget-controls button[aria-pressed="true"] i{width:38px;background:#79cf43}
.course-widget.is-pulsing{animation:widget-pop .36s cubic-bezier(.16,1,.3,1)}
@keyframes widget-pop{50%{transform:scale(1.012)}}

body.practice-open{min-height:100vh;overflow:auto!important;background:#e9e8e2}
body.practice-open .masthead,body.practice-open .workspace-bar,body.practice-open .course-widget,body.practice-open .count-sheet,body.practice-open .lesson,body.practice-open .phrase-lesson,body.practice-open .module-lesson,body.practice-open .orientation-guide,body.practice-open .console-mode-bar,body.practice-open .proof{display:none!important}
body.practice-open main{width:min(1500px,calc(100% - 32px));height:auto;max-height:none;margin:0 auto;padding:142px 0 110px;overflow:visible}
body.practice-open .mixer{display:grid!important;margin:0 auto;min-height:620px}
body.practice-open .free-mix{display:grid!important;margin:24px auto 0;border:0;background:rgba(255,255,255,.52);box-shadow:inset 0 1px 0 rgba(255,255,255,.9);backdrop-filter:blur(18px)}
body.practice-open .app-tabbar{display:grid}
@media(max-width:700px){
  .course-widget{width:calc(100% - 24px);padding:11px 12px;gap:10px}.course-widget>div:first-child{min-width:92px}.course-widget-controls{gap:5px}.course-widget-controls button{min-width:50px}
  body.practice-open main{width:calc(100% - 20px);padding-top:12px}
  body.practice-open .mixer{grid-template-columns:1fr;min-height:auto}
  body.practice-open .free-mix{grid-template-columns:1fr;padding:18px}
}

/* Local works archive and compact recorder. */
.mix-recorder{display:none}
body.practice-open .mix-recorder{position:fixed;z-index:75;top:72px;left:50%;width:min(560px,calc(100% - 40px));min-height:58px;display:grid;grid-template-columns:auto minmax(0,1fr) auto auto;align-items:center;gap:10px;padding:9px 10px 9px 14px;border:1px solid rgba(255,255,255,.78);border-radius:14px;background:rgba(246,244,238,.94);color:#292334;box-shadow:0 10px 28px rgba(42,36,52,.14);backdrop-filter:blur(20px);transform:translateX(-50%)}
.recorder-light{width:10px;height:10px;border-radius:50%;background:#aaa4ad}.mix-recorder.is-recording .recorder-light{background:#ff087f;box-shadow:0 0 0 5px rgba(255,8,127,.13);animation:record-pulse 1.1s ease-in-out infinite}.mix-recorder>div{min-width:0;display:grid;align-content:center;gap:3px}.mix-recorder strong{font-size:13px;line-height:1.15}.mix-recorder small{display:block;min-width:0;overflow:hidden;color:#6b6470;font-size:11px;line-height:1.25;white-space:nowrap;text-overflow:ellipsis}.mix-recorder time{font:700 13px/1 Cubic,monospace;font-variant-numeric:tabular-nums}.mix-recorder button{min-height:36px;padding:0 13px;border:0;border-radius:9px;background:#292334;color:#fff;font-weight:700;cursor:pointer;white-space:nowrap}.mix-recorder.is-recording button{background:#ff087f}@keyframes record-pulse{50%{opacity:.42}}
body.works-open .works-library{width:min(1000px,calc(100% - 32px));min-height:calc(100dvh - 80px);padding:34px 0 120px}
body.works-open .works-heading{display:flex;align-items:end;justify-content:space-between;gap:24px}
body.works-open .works-heading h2{color:#292334;text-shadow:none}
body.works-open .works-heading p{max-width:40ch;margin-top:7px;color:#625b67}
body.works-open .works-heading .primary-button{min-height:44px;border:0;background:#292334;color:#fff;white-space:nowrap}
.works-storage-note{margin-top:22px;display:grid;grid-template-columns:auto 1fr;gap:8px 16px;align-items:center;padding:14px 16px;border-radius:12px;background:#e9e0f6;color:#332c3e}.works-storage-note strong{font-size:13px}.works-storage-note span{font-size:12px;line-height:1.45;color:#594d67}
.works-list{display:grid;gap:10px;margin-top:18px}.works-error{padding:18px;border-radius:12px;background:#fff;color:#6a4a59}
.work-swipe{position:relative;overflow:hidden;border-radius:16px;background:transparent}
.work-swipe-delete{position:absolute;z-index:0;top:0;right:0;width:88px;height:100%;display:none;place-items:center;border:0;background:#ff4d86;color:#fff;font-size:13px;font-weight:800;cursor:pointer}
.work-item{display:grid;grid-template-columns:58px minmax(150px,1fr) auto;grid-template-rows:auto auto;align-items:center;gap:12px 14px;padding:14px;border-radius:16px;background:rgba(255,255,255,.66);box-shadow:inset 0 1px rgba(255,255,255,.86),0 14px 34px rgba(57,49,68,.09);backdrop-filter:blur(28px) saturate(145%)}
.work-cover{grid-row:1/3;width:58px;display:grid;place-items:center;color:#6f56a8}
.work-cover span{font:800 13px/1 Cubic,monospace}.work-cover i{display:none}
.work-info{min-width:0;display:grid;gap:4px}.work-info strong{overflow:hidden;font-size:14px;white-space:nowrap;text-overflow:ellipsis}.work-info span{font-size:11px;color:#675f6d}.work-actions{display:flex;gap:6px}.work-actions a,.work-actions button{min-height:36px;display:inline-grid;place-items:center;padding:0 13px;border:0;border-radius:12px;background:rgba(229,247,210,.82);color:#26331f;font-size:12px;font-weight:700;text-decoration:none;cursor:pointer}.work-actions button{background:rgba(241,237,244,.84);color:#665b6d}
.work-player{grid-column:2/4;display:grid;grid-template-columns:38px 38px minmax(90px,1fr) 38px 38px;align-items:center;gap:8px;padding:7px 9px;border:1px solid rgba(255,255,255,.62);border-radius:14px;background:rgba(255,255,255,.56);box-shadow:inset 0 1px rgba(255,255,255,.86);backdrop-filter:blur(20px) saturate(140%)}
.work-audio{display:none}.work-player button{width:38px;height:38px;display:grid;place-items:center;border:0;border-radius:50%;background:transparent;color:#25202b;cursor:pointer}.work-player button:hover{background:rgba(255,255,255,.58)}.work-player svg{width:20px;height:20px;fill:currentColor;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.work-player .pause-shape{display:none}.work-player.is-playing .play-shape{display:none}.work-player.is-playing .pause-shape{display:block}.work-player time{font:700 11px/1 -apple-system,BlinkMacSystemFont,"SF Pro Text","PingFang SC",sans-serif;font-variant-numeric:tabular-nums;color:#4e4656;text-align:center}.work-player input{width:100%;height:16px;margin:0;appearance:none;background:transparent;cursor:pointer}.work-player input::-webkit-slider-runnable-track{height:4px;border-radius:4px;background:linear-gradient(90deg,#2b2531 0 var(--player-progress,0%),rgba(43,37,49,.2) var(--player-progress,0%) 100%)}.work-player input::-webkit-slider-thumb{width:12px;height:12px;margin-top:-4px;appearance:none;border-radius:50%;background:#2b2531;box-shadow:0 2px 5px rgba(43,37,49,.2)}.work-player input::-moz-range-track{height:4px;border:0;border-radius:4px;background:rgba(43,37,49,.2)}.work-player input::-moz-range-progress{height:4px;border-radius:4px;background:#2b2531}.work-player input::-moz-range-thumb{width:12px;height:12px;border:0;border-radius:50%;background:#2b2531;box-shadow:0 2px 5px rgba(43,37,49,.2)}.work-player-volume.is-muted{opacity:.42}
body.works-open .works-empty{min-height:390px;margin-top:18px;grid-template-columns:minmax(220px,.8fr) minmax(240px,1fr);grid-template-rows:auto auto;align-items:center;align-content:center;justify-items:start;gap:8px 28px;padding:24px 42px;text-align:left;background:rgba(255,255,255,.62);box-shadow:0 12px 34px rgba(53,46,68,.09)}
body.works-open .works-empty[hidden]{display:none!important}.works-empty-character{grid-row:1/3;width:100%!important;max-height:360px!important;margin:0!important}.works-empty>div{align-self:end}.works-empty>div strong{display:block;margin-bottom:8px;font-size:22px}.works-empty>div p{max-width:32ch}.works-empty>.primary-button{align-self:start;margin-top:8px}
@media(max-width:700px){body.practice-open .mix-recorder{top:18px;width:calc(100% - 32px);grid-template-columns:auto minmax(0,1fr) auto}.mix-recorder time{display:none}.mix-recorder small{max-width:none}body.works-open .works-library{width:calc(100% - 20px);padding-top:18px}body.works-open .works-heading{align-items:start}body.works-open .works-heading h2{font-size:2rem}body.works-open .works-heading p{font-size:12px}body.works-open .works-heading .primary-button{min-height:38px;padding:0 12px}.works-storage-note{grid-template-columns:1fr;gap:4px;margin-top:14px}.work-swipe-delete{display:grid}.work-item{position:relative;z-index:1;width:100%;grid-template-columns:48px minmax(0,1fr) auto;grid-template-rows:auto auto;gap:10px 11px;padding:12px;touch-action:pan-y;transition:transform .3s cubic-bezier(.16,1,.3,1);will-change:transform}.work-swipe.is-open .work-item{transform:translateX(-88px)}.work-cover{grid-row:1;width:48px}.work-actions{grid-column:3;grid-row:1}.work-actions button{display:none}.work-player{grid-column:1/-1;grid-row:2;grid-template-columns:36px 34px minmax(70px,1fr) 34px 36px;padding:6px;gap:5px}.work-player button{width:36px;height:36px}body.works-open .works-empty{min-height:0;grid-template-columns:1fr 1fr;padding:18px 16px;text-align:left}.works-empty-character{grid-row:1/3;max-height:270px!important}.works-empty>div strong{font-size:17px}.works-empty>.primary-button{font-size:12px;padding:0 12px}}
@media(prefers-reduced-motion:reduce){.mix-recorder.is-recording .recorder-light{animation:none}}

/* App spacing and type scale — canonical final cascade. */
:root{
  --app-gutter:clamp(20px,4vw,40px);
  --app-content-max:1000px;
  --type-page-title:clamp(2.25rem,6vw,3.25rem);
  --type-section-title:1.375rem;
  --type-body:.875rem;
  --type-label:.75rem;
  --type-meta:.6875rem;
}
html:has(body.works-open){height:auto;overflow-x:hidden;overflow-y:auto}
body.works-open{height:auto;max-height:none;overflow-x:hidden!important;overflow-y:auto!important}
body.works-open{background:linear-gradient(118deg,rgba(121,207,67,.2),transparent 42%),linear-gradient(242deg,rgba(114,83,183,.24),transparent 48%),#eeeade}
body.works-open:not(.hub-open):not(.course-open)::before,body.works-open:not(.hub-open):not(.course-open)::after{display:block}
body.works-open:not(.hub-open):not(.course-open) .masthead{border-bottom:0;background:linear-gradient(180deg,rgba(238,234,222,.94),rgba(238,234,222,.56));box-shadow:none;backdrop-filter:blur(20px) saturate(130%)}
body.works-open main{width:min(var(--app-content-max),calc(100% - (var(--app-gutter) * 2)))!important;height:auto!important;max-height:none!important;margin:0 auto 80px!important;padding:24px 0 112px!important;overflow:visible!important}
body.works-open .works-library{width:100%;min-height:calc(100dvh - 170px);margin:0;padding:0}
body.works-open .works-heading h2{font-size:var(--type-page-title);line-height:1.02;letter-spacing:-.035em}
body.works-open .works-heading p{font-size:var(--type-body);line-height:1.55}
body.works-open .works-heading .primary-button{font-size:var(--type-body)}
.works-storage-note{font-size:var(--type-label)}
.works-storage-note strong{font-size:var(--type-label)}.works-storage-note span{font-size:var(--type-label)}
.work-info strong{font-size:var(--type-body)}.work-info span{font-size:var(--type-meta)}
.work-actions a,.work-actions button{font-size:var(--type-label)}
.works-empty>div strong{font-size:var(--type-section-title);line-height:1.15}.works-empty>div p{font-size:var(--type-body);line-height:1.55}
body.works-open .app-tabbar{left:var(--app-gutter);right:var(--app-gutter)}
@media(max-width:700px){body.works-open main{padding-top:78px!important}.works-storage-note{padding:13px 14px}body.works-open .works-empty{margin-top:14px}}
@media(max-width:700px){body.practice-open main{padding-top:138px}body.practice-open .mix-recorder{top:68px}}

/* Learning hub background trial — isolated from lesson, mixer, and works surfaces. */
body.hub-open:not(.course-open){position:relative;isolation:isolate;background:#f1eee6;animation:none}
body.hub-open:not(.course-open) .course-catalog{background:transparent}
body.hub-open:not(.course-open)::before,body.hub-open:not(.course-open)::after{display:none}
.learning-diffuse{display:none}
body.hub-open:not(.course-open) .learning-diffuse{position:fixed;z-index:0;inset:0;display:block;overflow:hidden;pointer-events:none;background:#f1eee6}
.learning-diffuse i{position:absolute;width:54vmax;height:54vmax;border-radius:50%;filter:blur(36px) saturate(150%);opacity:.82;will-change:transform,opacity}
.learning-diffuse i:nth-child(1){left:-19vmax;top:-16vmax;background:radial-gradient(circle at 58% 48%,rgba(174,255,67,1),rgba(174,255,67,.52) 36%,rgba(174,255,67,.1) 59%,transparent 72%);animation:diffuse-green 6.4s cubic-bezier(.45,0,.55,1) infinite alternate}
.learning-diffuse i:nth-child(2){right:-19vmax;top:auto;bottom:-16vmax;background:radial-gradient(circle at 42% 50%,rgba(177,139,245,.98),rgba(177,139,245,.5) 38%,rgba(177,139,245,.1) 60%,transparent 72%);animation:diffuse-purple 6.9s cubic-bezier(.45,0,.55,1) infinite alternate}
.learning-diffuse i:nth-child(3){left:22vw;bottom:-43vmax;background:radial-gradient(circle,rgba(245,178,211,.42),rgba(245,178,211,.1) 48%,transparent 70%);animation:diffuse-blush 11s ease-in-out infinite alternate}
.learning-diffuse::before,.learning-diffuse::after{content:"";position:absolute;left:50%;top:50%;width:86vmax;height:86vmax;border-radius:50%;background:repeating-radial-gradient(circle,transparent 0 7.2vmax,rgba(255,255,255,.58) 7.35vmax 7.6vmax,rgba(197,176,240,.18) 7.68vmax,transparent 7.9vmax 12.8vmax);filter:blur(.4px);will-change:transform,opacity}
.learning-diffuse::before{animation:ripple-propagate 5.4s linear infinite}
.learning-diffuse::after{animation:ripple-propagate 5.4s 2.7s linear infinite}
body.hub-open:not(.course-open) .masthead,body.hub-open:not(.course-open) .course-list,body.hub-open:not(.course-open) .hub-wave-canvas,body.hub-open:not(.course-open) .orbit-arrow,body.hub-open:not(.course-open) .orbit-current,body.hub-open:not(.course-open) .course-character,body.hub-open:not(.course-open) .punk-marks,body.hub-open:not(.course-open) .techniques-entry{z-index:2}
body.hub-open:not(.course-open) .masthead{
  position:fixed!important;
  z-index:40!important;
  inset:0 0 auto!important;
  display:flex!important;
  background:transparent!important;
  border:0!important;
  box-shadow:none!important;
  backdrop-filter:none!important;
}
body.hub-open:not(.course-open) main{background:transparent}
@keyframes diffuse-green{0%{transform:translate3d(-7vw,-5vh,0) scale(.9);opacity:.72}55%{transform:translate3d(23vw,22vh,0) scale(1.15);opacity:.96}100%{transform:translate3d(31vw,28vh,0) scale(1.02);opacity:.82}}
@keyframes diffuse-purple{0%{transform:translate3d(7vw,5vh,0) scale(.9);opacity:.72}52%{transform:translate3d(-22vw,-21vh,0) scale(1.15);opacity:.95}100%{transform:translate3d(-30vw,-27vh,0) scale(1.03);opacity:.82}}
@keyframes diffuse-blush{from{transform:translate3d(-9vw,4vh,0) scale(.92)}to{transform:translate3d(14vw,-13vh,0) scale(1.08)}}
@keyframes ripple-propagate{0%{transform:translate(-50%,-50%) scale(.46);opacity:0}15%{opacity:.62}72%{opacity:.26}100%{transform:translate(-50%,-50%) scale(1.36);opacity:0}}
@media(prefers-reduced-motion:reduce){.learning-diffuse::before,.learning-diffuse::after{animation:none}.learning-diffuse::before{transform:translate(-50%,-50%) scale(.9);opacity:.3}.learning-diffuse::after{display:none}}

/* Unified widget materials and interaction states. */
:root{--glass-content:rgba(255,255,255,.48);--glass-control:rgba(255,255,255,.64);--glass-edge:rgba(255,255,255,.55);--glass-highlight:inset 0 1px rgba(255,255,255,.75);--glass-shadow:0 14px 36px rgba(48,38,65,.10)}
body.hub-open:not(.course-open) .course-list button{border:1px solid var(--glass-edge)!important;border-radius:24px;background:var(--glass-content)!important;box-shadow:var(--glass-highlight),var(--glass-shadow);backdrop-filter:blur(28px) saturate(150%)}
body.hub-open:not(.course-open) .course-list .is-orbit-current button{background:rgba(255,255,255,.64)!important;filter:brightness(1.04);box-shadow:inset 0 1px rgba(255,255,255,.9),0 18px 42px rgba(48,38,65,.14)}
.orbit-current,.course-widget,.module-mini-widget{border:1px solid var(--glass-edge);background:var(--glass-content);box-shadow:var(--glass-highlight),var(--glass-shadow);backdrop-filter:blur(26px) saturate(150%)}
.orbit-current{border-radius:18px}.course-widget{border-radius:24px;padding:16px}.module-mini-widget{border-radius:18px;padding:12px}
.course-widget-controls button,.module-actions button,.lesson-actions button{border-radius:13px}
.app-tabbar,body.hub-open .app-tabbar,body.course-open .app-tabbar,body.works-open .app-tabbar{border:1px solid var(--glass-edge);background:rgba(255,255,255,.66);box-shadow:var(--glass-highlight),0 18px 44px rgba(48,38,65,.14);backdrop-filter:blur(30px) saturate(155%)}
button,.course-list button,.module-mini-widget,.technique-card{transition:transform .32s cubic-bezier(.16,1,.3,1),filter .26s ease,background .26s ease,box-shadow .32s ease}
button:active,.course-list button:active,.module-mini-widget:active,.technique-card:active{transform:scale(.98)}
.module-mini-widget.is-playing{background:rgba(255,255,255,.66);box-shadow:inset 0 1px rgba(255,255,255,.9),0 18px 42px rgba(48,38,65,.13)}
.hub-open .course-list li.is-complete button::before{content:"";position:absolute;z-index:4;right:7px;bottom:7px;width:13px;height:13px;border-radius:50%;background:#9bdd45;box-shadow:0 0 0 4px rgba(255,255,255,.58)}

.techniques-entry{position:fixed;z-index:42;right:32px;bottom:30px;min-height:58px;display:flex;align-items:center;gap:9px;padding:10px 13px 10px 16px;border:1px solid var(--glass-edge);border-radius:18px;background:var(--glass-control);color:#2c2634;box-shadow:var(--glass-highlight),var(--glass-shadow);backdrop-filter:blur(28px) saturate(150%);cursor:pointer}.techniques-entry span{font-size:10px;color:#6f6578}.techniques-entry strong{font-size:13px}.techniques-entry svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.techniques-open .techniques-entry{opacity:0;pointer-events:none}
.techniques-backdrop{position:fixed;z-index:95;inset:0;background:rgba(30,24,40,.14);opacity:0;transition:opacity .32s ease}.techniques-backdrop.is-open{opacity:1}.techniques-backdrop[hidden]{display:none}
.techniques-sheet{position:fixed;z-index:96;left:50%;bottom:0;width:min(720px,100%);height:min(58dvh,620px);display:flex;flex-direction:column;padding:8px 20px calc(22px + env(safe-area-inset-bottom));overflow:hidden;border:1px solid var(--glass-edge);border-bottom:0;border-radius:30px 30px 0 0;background:rgba(247,244,239,.78);box-shadow:inset 0 1px rgba(255,255,255,.85),0 -18px 52px rgba(48,38,65,.14);backdrop-filter:blur(30px) saturate(155%);transform:translate(-50%,105%);transition:height .42s cubic-bezier(.16,1,.3,1),transform .42s cubic-bezier(.16,1,.3,1)}.techniques-sheet.is-open{transform:translate(-50%,0)}.techniques-sheet.is-expanded{height:90dvh}.techniques-sheet[hidden]{display:none}
.sheet-grabber{align-self:center;width:64px;height:24px;display:grid;place-items:center;border:0;background:transparent;cursor:ns-resize}.sheet-grabber span{width:36px;height:5px;border-radius:5px;background:rgba(43,37,49,.24)}
.techniques-head{display:flex;align-items:flex-start;justify-content:space-between;gap:18px;padding:6px 2px 12px}.techniques-head>div>span{font-size:11px;color:#74677e}.techniques-head h2{margin:2px 0 4px;font-size:1.75rem;line-height:1}.techniques-head p{margin:0;color:#625969;font-size:12px}.techniques-close{width:42px;height:42px;display:grid;place-items:center;border:0;border-radius:14px;background:rgba(255,255,255,.58);color:#2c2634}.techniques-close svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round}
.techniques-progress{display:flex;align-items:center;gap:12px;padding:0 2px 14px}.techniques-progress>span{height:6px;flex:1;overflow:hidden;border-radius:6px;background:rgba(52,44,62,.12)}.techniques-progress i{display:block;width:43%;height:100%;border-radius:inherit;background:linear-gradient(90deg,#9bdd45,#8060c6)}.techniques-progress strong{font-size:11px;color:#554b5d}
.techniques-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;overflow:auto;padding:2px 2px 18px}.technique-card{min-height:92px;display:grid;grid-template-columns:1fr auto;align-content:center;gap:6px 10px;padding:12px;border:0;border-radius:18px;background:rgba(255,255,255,.44);color:#2c2634;text-align:left;box-shadow:inset 0 1px rgba(255,255,255,.72);backdrop-filter:blur(24px) saturate(145%)}.technique-card>span{font-size:10px;font-weight:800;letter-spacing:.07em;color:#7557ad}.technique-card>strong{grid-column:1;font-size:13px;line-height:1.3}.technique-card>i{grid-column:2;grid-row:1/3;display:flex;align-items:center;gap:3px}.technique-card>i b{width:4px;height:12px;border-radius:4px;background:#8060c6}.technique-card>i b:nth-child(2),.technique-card>i b:nth-child(4){height:25px;background:#9bdd45}.technique-card.is-previewing{background:rgba(255,255,255,.68);box-shadow:inset 0 1px rgba(255,255,255,.9),0 14px 32px rgba(48,38,65,.1)}.technique-card.is-previewing i b{animation:learning-wave .55s ease-in-out infinite alternate}.technique-card:disabled{opacity:.48;filter:saturate(.25);cursor:not-allowed}.techniques-practice{min-height:52px;flex:0 0 auto;border:0;border-radius:14px;background:#292334;color:#fff;font-size:13px;font-weight:800}.techniques-practice span{margin-left:8px;color:#9bdd45}
@media(max-width:700px){.techniques-entry{right:16px;bottom:88px;min-height:52px}.techniques-sheet{height:56dvh;padding-inline:16px}.techniques-grid{grid-template-columns:1fr 1fr}.technique-card{min-height:88px}.techniques-head h2{font-size:1.55rem}}
@media(prefers-reduced-motion:reduce){button,.course-list button,.module-mini-widget,.technique-card,.techniques-sheet,.techniques-backdrop{transition:none}.technique-card.is-previewing i b{animation:none}}

/* Brand lockup — compact handwritten mark from the approved reference. */
.wordmark{
  font-family:GochiHand,system-ui,sans-serif!important;
  font-size:clamp(1.55rem,2.2vw,2rem)!important;
  font-style:normal!important;
  font-weight:400!important;
  line-height:1!important;
  letter-spacing:.015em!important;
}
body.practice-open .practice-brand a{font-family:GochiHand,system-ui,sans-serif!important;font-size:1.62rem!important;font-style:normal!important;font-weight:400!important;letter-spacing:.015em!important}
@media(max-width:700px){
  .masthead{min-height:62px;padding:14px 16px!important}
  .wordmark{font-size:1.62rem!important}
}

body.hub-open.audio-ready .sound-gate,body.course-open.audio-ready .sound-gate{
  border-color:rgba(91,160,54,.58)!important;
  background:rgba(242,255,235,.92)!important;
  color:#17380d!important;
  font-weight:750;
  text-shadow:none;
}
body.hub-open.audio-ready .sound-gate svg,body.course-open.audio-ready .sound-gate svg{fill:none!important;stroke:#17380d!important}

/* The learning backdrop is an explicitly requested ambient motion surface. */
@media(prefers-reduced-motion:reduce){
  .learning-diffuse i:nth-child(1){animation-name:diffuse-green!important;animation-duration:6.4s!important;animation-timing-function:cubic-bezier(.45,0,.55,1)!important;animation-iteration-count:infinite!important;animation-direction:alternate!important}
  .learning-diffuse i:nth-child(2){animation-name:diffuse-purple!important;animation-duration:6.9s!important;animation-timing-function:cubic-bezier(.45,0,.55,1)!important;animation-iteration-count:infinite!important;animation-direction:alternate!important}
}

/* Learning hub refinement — quiet stage, one visual focus, ambient depth. */
body.hub-open:not(.course-open),
body.hub-open:not(.course-open) .learning-diffuse{
  background:#f4f2ee;
}
body.hub-open:not(.course-open) .course-list{
  top:70px;
  height:178px;
}
body.hub-open:not(.course-open) .course-list li,
body.hub-open:not(.course-open) .course-list li:nth-child(n){
  width:100px;
  height:90px;
}
body.hub-open:not(.course-open) .course-list button{
  width:100px;
  height:90px;
  padding:8px;
  border:1px solid rgba(255,255,255,.52)!important;
  border-radius:16px!important;
  background:rgba(255,255,255,.40)!important;
  box-shadow:inset 0 1px rgba(255,255,255,.72),0 10px 28px rgba(54,47,66,.07)!important;
  backdrop-filter:blur(20px) saturate(125%)!important;
}
body.hub-open:not(.course-open) .course-list .is-orbit-current button{
  border-color:rgba(255,255,255,.82)!important;
  background:rgba(255,255,255,.70)!important;
  box-shadow:inset 0 1px rgba(255,255,255,.92),0 18px 44px rgba(54,47,66,.13)!important;
  filter:none;
  width:112px;
  height:100px;
  margin-left:-6px;
  margin-top:-5px;
}
body.hub-open:not(.course-open) .course-list .is-orbit-edge button{
  background:rgba(255,255,255,.28)!important;
  box-shadow:inset 0 1px rgba(255,255,255,.54),0 8px 22px rgba(54,47,66,.05)!important;
}
body.hub-open:not(.course-open) .course-list .course-number{
  right:7px;
  top:7px;
  padding:0;
  background:transparent;
  color:#54476d;
  backdrop-filter:none;
  font-size:.68rem;
}
.orbit-current{
  top:200px;
  min-height:42px;
  max-width:min(72vw,360px);
  padding:10px 18px;
  border:1px solid rgba(255,255,255,.78);
  border-radius:15px;
  background:rgba(255,255,255,.68);
  color:#27232e;
  box-shadow:inset 0 1px rgba(255,255,255,.92),0 12px 30px rgba(54,47,66,.08);
  backdrop-filter:blur(24px) saturate(130%);
  font-size:.8rem;
  line-height:1.3;
  white-space:normal;
  text-align:center;
}
body.hub-open:not(.course-open) .course-character{
  bottom:86px;
  height:min(38vh,350px);
}
body.hub-open:not(.course-open) .hub-wave-canvas{
  z-index:1;
  inset:27% 15% auto;
  width:70%;
  height:14%;
  opacity:.22;
  filter:saturate(.7);
}
.orbit-arrow{
  top:39%;
  width:42px;
  height:42px;
  background:rgba(255,255,255,.70);
  box-shadow:0 10px 28px rgba(54,47,66,.08),inset 0 1px rgba(255,255,255,.9);
  backdrop-filter:blur(18px);
}
.orbit-prev{left:14%}.orbit-next{right:14%}
.techniques-entry{
  left:50%;
  right:auto;
  bottom:20px;
  min-height:48px;
  padding:8px 14px;
  border-radius:15px;
  background:rgba(255,255,255,.72);
  box-shadow:inset 0 1px rgba(255,255,255,.9),0 12px 30px rgba(54,47,66,.09);
  backdrop-filter:blur(24px) saturate(130%);
  transform:translateX(-50%);
}

.learning-diffuse i{width:43vmax;height:43vmax;filter:blur(74px) saturate(112%);opacity:.3}
.learning-diffuse i:nth-child(1){left:-11vmax;top:-12vmax;background:radial-gradient(circle,rgba(178,238,109,.78),rgba(178,238,109,.28) 42%,transparent 72%);animation:ambient-green 14s cubic-bezier(.45,0,.55,1) infinite alternate}
.learning-diffuse i:nth-child(2){right:-12vmax;bottom:-12vmax;background:radial-gradient(circle,rgba(180,158,226,.72),rgba(180,158,226,.25) 43%,transparent 72%);animation:ambient-purple 16s cubic-bezier(.45,0,.55,1) -3s infinite alternate}
.learning-diffuse i:nth-child(3){display:none}
.learning-diffuse::before{width:74vmax;height:74vmax;background:radial-gradient(circle,transparent 0 32%,rgba(255,255,255,.26) 32.3%,transparent 33%);opacity:.18;animation:ambient-ring 14s ease-in-out infinite}
.learning-diffuse::after{display:none}
@keyframes ambient-green{0%{transform:translate3d(-14px,-9px,0) scale(.97);opacity:.27;filter:blur(72px) saturate(108%)}50%{transform:translate3d(22px,18px,0) scale(1.04);opacity:.38;filter:blur(82px) saturate(116%)}100%{transform:translate3d(8px,26px,0) scale(1);opacity:.31;filter:blur(76px) saturate(112%)}}
@keyframes ambient-purple{0%{transform:translate3d(16px,12px,0) scale(.98);opacity:.25;filter:blur(78px) saturate(108%)}50%{transform:translate3d(-24px,-18px,0) scale(1.05);opacity:.36;filter:blur(86px) saturate(116%)}100%{transform:translate3d(-8px,-25px,0) scale(1);opacity:.3;filter:blur(80px) saturate(112%)}}
@keyframes ambient-ring{0%,100%{transform:translate(-50%,-50%) scale(.94);opacity:.08}50%{transform:translate(-50%,-50%) scale(1.08);opacity:.22}}

@media(max-width:700px){
  body.hub-open:not(.course-open) .course-list{top:54px;height:160px}
  body.hub-open:not(.course-open) .course-list li,body.hub-open:not(.course-open) .course-list li:nth-child(n){width:86px;height:82px}
  body.hub-open:not(.course-open) .course-list button{width:86px;height:82px;border-radius:15px!important}
  .orbit-current{top:184px;max-width:70vw;min-height:40px;padding:9px 14px;font-size:.76rem}
  body.hub-open:not(.course-open) .course-character{bottom:116px;height:min(36vh,330px)}
  body.hub-open:not(.course-open) .hub-wave-canvas{inset:29% 14% auto;width:72%;height:12%;opacity:.2}
  .orbit-arrow{top:42%;width:40px;height:40px}.orbit-prev{left:7%}.orbit-next{right:7%}
  .techniques-entry{left:auto;right:16px;bottom:84px;min-height:46px;transform:none}
}

@media(prefers-reduced-motion:reduce){
  .learning-diffuse i:nth-child(1){animation-name:ambient-green!important;animation-duration:18s!important}
  .learning-diffuse i:nth-child(2){animation-name:ambient-purple!important;animation-duration:20s!important}
}

/* Equal-level stage navigation: both stages share the learning canvas. */
.learning-stage-switch{
  position:absolute;
  z-index:50;
  left:50%;
  top:10px;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:3px;
  width:min(276px,calc(100% - 112px));
  padding:4px;
  border:1px solid rgba(255,255,255,.64);
  border-radius:16px;
  background:rgba(255,255,255,.46);
  box-shadow:inset 0 1px rgba(255,255,255,.82),0 10px 28px rgba(54,47,66,.07);
  backdrop-filter:blur(24px) saturate(130%);
  transform:translateX(-50%);
}
.learning-stage-switch button{
  min-height:38px;
  padding:0 14px;
  border:0;
  border-radius:12px;
  background:transparent;
  color:#6a6370;
  font-size:.78rem;
  font-weight:700;
  cursor:pointer;
}
.learning-stage-switch button.is-active{
  background:rgba(255,255,255,.86);
  color:#26222c;
  box-shadow:0 5px 16px rgba(54,47,66,.08),inset 0 1px rgba(255,255,255,.96);
}
body.hub-open:not(.course-open) .course-list{top:82px}
body.hub-open:not(.course-open) .course-character{bottom:82px;height:min(46vh,430px)}
.orbit-current{top:190px}
.learning-diffuse i{filter:blur(64px) saturate(118%);opacity:.4}
.learning-diffuse i:nth-child(1){background:radial-gradient(circle,rgba(174,238,96,.9),rgba(174,238,96,.36) 43%,transparent 72%)}
.learning-diffuse i:nth-child(2){background:radial-gradient(circle,rgba(176,148,232,.84),rgba(176,148,232,.32) 44%,transparent 72%)}
.learning-diffuse::before{opacity:.28;background:radial-gradient(circle,transparent 0 31%,rgba(255,255,255,.42) 31.4%,transparent 32.2%)}

body.techniques-open .course-list,
body.techniques-open .orbit-current,
body.techniques-open .orbit-arrow,
body.techniques-open .course-character,
body.techniques-open .hub-wave-canvas{opacity:0;pointer-events:none}
body.techniques-open .techniques-backdrop{display:none!important}
body.hub-open .techniques-sheet{
  top:132px;
  bottom:auto;
  width:min(720px,calc(100% - 36px));
  height:calc(100dvh - 220px);
  max-height:610px;
  padding:18px 22px 22px;
  border:1px solid rgba(255,255,255,.68);
  border-radius:24px;
  background:rgba(250,249,247,.66);
  box-shadow:inset 0 1px rgba(255,255,255,.92),0 22px 60px rgba(54,47,66,.11);
  backdrop-filter:blur(30px) saturate(135%);
  transform:translate(-50%,18px);
  opacity:0;
  transition:transform .42s cubic-bezier(.16,1,.3,1),opacity .28s ease;
}
body.hub-open .techniques-sheet.is-open{transform:translate(-50%,0);opacity:1}
body.hub-open .sheet-grabber{display:none}
body.hub-open .techniques-close{display:none}
body.hub-open .techniques-grid{grid-template-columns:repeat(3,minmax(0,1fr));align-content:start}
body.hub-open .techniques-practice{margin-top:auto}

@media(max-width:700px){
  .learning-stage-switch{top:8px;width:min(254px,calc(100% - 104px))}
  .learning-stage-switch button{min-height:36px;padding-inline:10px;font-size:.74rem}
  body.hub-open:not(.course-open) .course-list{top:68px}
  body.hub-open:not(.course-open) .course-character{bottom:112px;height:min(43vh,390px)}
  .orbit-current{top:174px}
  body.hub-open .techniques-sheet{top:124px;height:calc(100dvh - 222px);padding:16px;border-radius:20px}
  body.hub-open .techniques-grid{grid-template-columns:1fr 1fr}
}

/* Learning carousel polish — calmer paging, clearer spacing, vivid ambient color. */
body.hub-open:not(.course-open) .course-list{
  top:104px;
}
body.hub-open:not(.course-open) .course-list li,
body.hub-open:not(.course-open) .course-list li:nth-child(n){
  transition:left .52s cubic-bezier(.22,.72,.24,1),top .52s cubic-bezier(.22,.72,.24,1),transform .52s cubic-bezier(.22,.72,.24,1),opacity .22s ease;
}
.orbit-current{
  top:224px;
}
.orbit-arrow{
  transition:transform .22s cubic-bezier(.16,1,.3,1),background .2s ease,box-shadow .2s ease;
}
.orbit-prev:active{transform:translateY(-50%) translateX(-3px) scale(.97)}
.orbit-next:active{transform:translateY(-50%) translateX(3px) scale(.97)}

body.hub-open:not(.course-open) .hub-wave-canvas{
  display:none!important;
}
.learning-diffuse i{
  filter:blur(54px) saturate(164%);
  opacity:.62;
}
.learning-diffuse i:nth-child(1){
  background:radial-gradient(circle,rgba(165,239,70,.96),rgba(181,244,93,.48) 43%,transparent 72%);
  animation-duration:5s;
}
.learning-diffuse i:nth-child(2){
  background:radial-gradient(circle,rgba(165,125,239,.92),rgba(190,153,245,.43) 44%,transparent 72%);
  animation-duration:5.4s;
}
.learning-diffuse::before{
  opacity:.34;
}
@keyframes ambient-green{
  0%{transform:translate3d(-14px,-9px,0) scale(.97);opacity:.54;filter:blur(54px) saturate(158%)}
  50%{transform:translate3d(22px,18px,0) scale(1.04);opacity:.7;filter:blur(60px) saturate(172%)}
  100%{transform:translate3d(8px,26px,0) scale(1);opacity:.61;filter:blur(56px) saturate(164%)}
}
@keyframes ambient-purple{
  0%{transform:translate3d(16px,12px,0) scale(.98);opacity:.52;filter:blur(56px) saturate(158%)}
  50%{transform:translate3d(-24px,-18px,0) scale(1.05);opacity:.68;filter:blur(62px) saturate(171%)}
  100%{transform:translate3d(-8px,-25px,0) scale(1);opacity:.59;filter:blur(58px) saturate(164%)}
}

@media(max-width:700px){
  body.hub-open:not(.course-open) .course-list{top:88px}
  .orbit-current{top:200px}
}

@media(prefers-reduced-motion:reduce){
  .learning-diffuse i:nth-child(1){animation-duration:7s!important}
  .learning-diffuse i:nth-child(2){animation-duration:7.5s!important}
}

/* Keep the illustrated sprite at a stable, crisp size inside every card. */
body.hub-open:not(.course-open) .course-list button::after{
  inset:auto;
  left:50%;
  top:50%;
  width:84px;
  height:74px;
  transform:translate(-50%,-50%);
  background-size:650% auto;
  background-position-y:50%;
  filter:drop-shadow(0 2px 1px rgba(32,28,40,.1));
}
body.hub-open:not(.course-open) .course-list li:nth-child(2) button::after{background-position-x:16.666%}
body.hub-open:not(.course-open) .course-list li:nth-child(3) button::after{background-position-x:33.333%}
body.hub-open:not(.course-open) .course-list li:nth-child(4) button::after{background-position-x:50%}
body.hub-open:not(.course-open) .course-list li:nth-child(5) button::after{background-position-x:66.666%}
body.hub-open:not(.course-open) .course-list li:nth-child(6) button::after{background-position-x:83.333%}
body.hub-open:not(.course-open) .course-list li:nth-child(7) button::after{background-position-x:100%}
body.hub-open:not(.course-open) .course-list .is-orbit-current button::after{
  width:88px;
  height:78px;
}
@media(max-width:700px){
  body.hub-open:not(.course-open) .course-list button::after{width:76px;height:66px}
  body.hub-open:not(.course-open) .course-list .is-orbit-current button::after{width:80px;height:70px}
}

/* The persistent title below the carousel is the only course-name label. */
body.hub-open:not(.course-open) .course-list strong,
body.hub-open:not(.course-open) .course-list button:hover strong,
body.hub-open:not(.course-open) .course-list button:focus-visible strong{
  display:none!important;
}

body.hub-open:not(.course-open) .orbit-current{
  top:232px;
  display:grid;
  gap:4px;
  min-width:min(310px,72vw);
  padding:10px 18px 11px;
}
body.hub-open:not(.course-open) .orbit-current strong{
  display:block;
  font-size:.82rem;
  line-height:1.15;
  color:#24202a;
}
body.hub-open:not(.course-open) .orbit-current span{
  display:block;
  color:#6d6572;
  font-size:.68rem;
  font-weight:600;
  line-height:1.25;
}
@media(max-width:700px){
  body.hub-open:not(.course-open) .orbit-current{top:208px;min-width:min(280px,76vw)}
}

/* Standard lesson template: progress, one instruction, one relevant control. */
body.course-open[data-course="beat"] .course-widget{display:none!important}
body.course-open[data-course="beat"] .workspace-bar{margin-bottom:12px}
body.course-open[data-course="beat"] .workspace-mode{
  display:block;
  min-width:74px;
  color:#5b437f;
  font:700 .7rem/1.2 system-ui,"Microsoft YaHei UI",sans-serif;
}
body.course-open[data-course="beat"] .count-sheet{
  max-width:760px;
  margin:0 auto 10px;
  border-radius:14px;
}
body.course-open[data-course="beat"] .lesson{
  position:sticky;
  z-index:22;
  top:78px;
  grid-template-columns:minmax(0,1fr) auto;
  gap:14px 22px;
  margin:0 auto 18px;
  padding:16px 18px;
  border-radius:16px;
}
body.course-open[data-course="beat"] .lesson-progress{
  grid-column:1/-1;
  display:grid;
  grid-template-columns:repeat(8,1fr);
  gap:5px;
}
body.course-open[data-course="beat"] .lesson-progress span{
  min-width:0;
  height:4px;
  padding:0;
  overflow:hidden;
  border:0;
  border-radius:4px;
  background:#dedce2;
  color:transparent;
}
body.course-open[data-course="beat"] .lesson-progress span.is-current,
body.course-open[data-course="beat"] .lesson-progress span.is-done{background:#79cf43}
body.course-open[data-course="beat"] .lesson-copy h2{margin:0 0 4px;font-size:1.05rem}
body.course-open[data-course="beat"] .lesson-copy p{margin:0;font-size:.78rem;line-height:1.45}
body.course-open[data-course="beat"] .lesson-primary-action{align-self:center;min-height:44px}
body.course-open[data-course="beat"] .lesson-visual,
body.course-open[data-course="beat"] .lesson-utility-actions,
body.course-open[data-course="beat"] .lesson-why,
body.course-open[data-course="beat"] .lesson-actions{display:none}
body.course-open[data-course="beat"] .mixer{scroll-margin-top:170px}
body.course-open[data-course="beat"] .play-button.is-next,
body.course-open[data-course="beat"] .sync-button.is-next,
body.course-open[data-course="beat"] label:has(input.is-next),
body.course-open[data-course="beat"] .handoff:has(input.is-next){
  position:relative;
  z-index:4;
  box-shadow:0 0 0 3px rgba(121,207,67,.62),0 14px 30px rgba(56,88,35,.18)!important;
}
body.course-open[data-course="beat"] .play-button.is-next::after,
body.course-open[data-course="beat"] .sync-button.is-next::after,
body.course-open[data-course="beat"] label:has(input.is-next)::after{
  content:"当前操作";
  position:absolute;
  left:50%;
  bottom:calc(100% + 8px);
  padding:6px 9px;
  border-radius:9px;
  background:#17161b;
  color:#fff;
  font:700 .66rem/1 system-ui,"Microsoft YaHei UI",sans-serif;
  white-space:nowrap;
  transform:translateX(-50%);
  pointer-events:none;
}
@media(max-width:700px){
  body.course-open[data-course="beat"] .lesson{top:68px;grid-template-columns:1fr;padding:14px}
  body.course-open[data-course="beat"] .lesson-primary-action{width:100%}
}

body.course-open:not(.practice-open) .masthead{display:none!important}
body.course-open:not(.practice-open) main{padding-top:10px}
body.course-open:not(.practice-open) .workspace-bar{margin-top:0}

/* Compact deck utilities replace the former full-page import form. */
body.practice-open .free-mix{display:none!important}
.practice-track-tools{display:none}
body.practice-open .practice-track-tools{
  margin-top:12px;
  display:flex;
  align-items:center;
  justify-content:flex-end;
  gap:8px;
}
.practice-track-tools label{
  display:flex;
  align-items:center;
  gap:6px;
  color:#cbd8cf;
  font-size:11px;
  font-weight:700;
}
.practice-track-tools input[type="number"]{
  width:66px;
  height:34px;
  padding:0 8px;
  border:1px solid #73827d;
  border-radius:8px;
  background:#121719;
  color:#eff7ef;
  font:700 12px/1 system-ui,sans-serif;
}
.practice-track-tools button,.cue-button{
  min-height:34px;
  padding:0 10px;
  border:1px solid #8d9c96;
  border-radius:8px;
  background:#303b3a;
  color:#e2ecd9;
  font-size:11px;
  font-weight:800;
  cursor:pointer;
}
.cue-button{background:#f7f5f0;color:#4d425b;border-color:#cec7d2}
body.practice-open .control-bank{grid-template-columns:repeat(5,minmax(0,1fr))}
@media(max-width:700px){
  body.practice-open .practice-track-tools{justify-content:center;flex-wrap:wrap}
  .practice-track-tools label{flex:1 1 90px;justify-content:center}
  .practice-track-tools button{flex:1 1 150px}
  body.practice-open .control-bank{grid-template-columns:repeat(5,minmax(0,1fr))!important}
}

/* Game-like lesson milestones and full-course celebration. */
.module-progress{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:8px;
  height:auto;
}
.module-knowledge{
  min-height:46px;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:8px 10px;
  border-radius:12px;
  background:rgba(255,255,255,.48);
  color:#6a6370;
  font-size:12px;
  font-weight:750;
  text-align:center;
}
.module-knowledge i{
  position:relative;
  width:18px;
  height:18px;
  flex:0 0 18px;
  border:2px solid #b9b3bf;
  border-radius:50%;
  background:transparent;
}
.module-knowledge.is-current{
  background:#eee8f7;
  color:#4d3b6a;
  box-shadow:inset 0 0 0 1px rgba(114,83,183,.18);
}
.module-knowledge.is-current i{border-color:#7253b7;background:#fff}
.module-knowledge.is-done{background:#e7f6dc;color:#315a1b}
.module-knowledge.is-done i{border-color:#79cf43;background:#79cf43}
.module-knowledge.is-done i::after{
  content:"";
  position:absolute;
  left:4px;
  top:1px;
  width:5px;
  height:9px;
  border-right:2px solid #18320d;
  border-bottom:2px solid #18320d;
  transform:rotate(42deg);
}
.module-finish[hidden]{display:none!important}
.module-finish{
  position:fixed;
  z-index:110;
  inset:0;
  display:grid;
  grid-template-rows:1fr auto;
  place-items:center;
  overflow:hidden;
  border:0;
  background:rgba(25,21,30,.22);
  -webkit-backdrop-filter:blur(5px) saturate(90%);
  backdrop-filter:blur(5px) saturate(90%);
}
.module-finish::before{
  content:"";
  position:absolute;
  z-index:0;
  left:0;
  right:0;
  bottom:0;
  height:48%;
  background:rgba(246,244,239,.78);
  border-top:1px solid rgba(255,255,255,.86);
  backdrop-filter:blur(24px) saturate(130%);
}
.module-finish-character{
  position:absolute;
  z-index:2;
  left:50%;
  top:47%;
  width:min(62vw,430px);
  max-height:67vh;
  object-fit:contain;
  transform:translate(-50%,-50%);
  filter:drop-shadow(0 22px 28px rgba(47,38,61,.2));
  animation:lesson-celebrate .62s cubic-bezier(.16,1,.3,1) both;
}
.module-finish-panel{
  position:relative;
  z-index:3;
  align-self:end;
  width:min(520px,calc(100% - 32px));
  margin-bottom:calc(34px + env(safe-area-inset-bottom));
  display:grid;
  justify-items:center;
  gap:8px;
  padding:18px;
  text-align:center;
}
.module-finish-panel strong{font-size:clamp(1.45rem,4vw,2rem);color:#28222f}
.module-finish-panel p{margin:0;color:#5d5564;font-size:13px}
.module-finish-panel .primary-button{min-width:190px;margin-top:4px}
@keyframes lesson-celebrate{
  from{transform:translate(-50%,calc(-50% + 28px)) scale(.92);opacity:.18;filter:blur(5px) drop-shadow(0 12px 18px rgba(47,38,61,.08))}
  to{transform:translate(-50%,-50%) scale(1);opacity:1;filter:blur(0) drop-shadow(0 22px 28px rgba(47,38,61,.2))}
}
@media(max-width:700px){
  .module-progress{gap:5px}
  .module-knowledge{min-height:42px;gap:5px;padding:6px 5px;font-size:11px}
  .module-knowledge i{width:16px;height:16px;flex-basis:16px}
  .module-knowledge.is-done i::after{left:3px;top:0;width:5px;height:9px}
  .module-finish-character{top:44%;width:min(88vw,390px);max-height:62vh}
  .module-finish::before{height:52%}
}
@media(prefers-reduced-motion:reduce){.module-finish-character{animation:none}}

/* Chinese composition: prevent orphaned final characters and keep punctuation with its phrase. */
:where(h1,h2,h3,h4,p,li,button,a,strong,small,label,figcaption,.module-feedback,.coach-message){
  line-break:strict;
  word-break:normal;
  overflow-wrap:break-word;
  text-wrap:pretty;
}
:where(h1,h2,h3,h4){text-wrap:balance}

/* My: one personal workspace for learning progress and saved works. */
body.works-open{background:#f3f0e8!important}
body.works-open main{width:min(920px,calc(100% - 40px))!important;padding-top:30px!important}
body.works-open .my-library{width:100%!important;min-height:calc(100dvh - 150px)!important;padding:0 0 120px!important}
.my-heading{display:flex;align-items:end;justify-content:space-between;gap:24px;padding:0 2px 22px;border-bottom:1px solid rgba(42,37,47,.12)}
.my-heading h2{margin:0;color:#29242e;font-size:40px;line-height:1;letter-spacing:-.035em}
.my-heading p{max-width:34em;margin:8px 0 0;color:#6a626e;font-size:14px;line-height:1.55}
.my-tabs{position:sticky;z-index:12;top:70px;display:grid;grid-template-columns:repeat(2,1fr);gap:4px;width:min(420px,100%);margin:18px 0 30px;padding:4px;border:1px solid rgba(42,37,47,.1);border-radius:14px;background:rgba(243,240,232,.9);backdrop-filter:blur(18px)}
.my-tabs button{min-height:42px;padding:0 14px;border:0;border-radius:10px;background:transparent;color:#6f6873;font-size:13px;font-weight:750;cursor:pointer}
.my-tabs button.is-active{background:#fff;color:#29242e;box-shadow:0 7px 18px rgba(54,46,64,.08)}
.my-panel[hidden]{display:none!important}
.panel-heading{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:20px}
.panel-heading h3{margin:0;color:#29242e;font-size:24px;line-height:1.1}
.panel-heading p{margin:7px 0 0;color:#6a626e;font-size:13px}
.panel-heading .primary-button{min-height:44px;border:0;border-radius:12px;background:#29242e;color:#fff;white-space:nowrap}
.progress-resume{position:relative;display:grid;grid-template-columns:1fr auto;gap:16px 24px;padding:26px 0 24px;border-bottom:1px solid rgba(42,37,47,.12)}
.progress-resume span{display:block;margin-bottom:7px;color:#7253b7;font-size:12px;font-weight:850}
.progress-resume h3{margin:0;color:#29242e;font-size:26px;line-height:1.12}
.progress-resume p{max-width:48ch;margin:8px 0 0;color:#655e69;font-size:13px;line-height:1.55}
.progress-resume .primary-button{align-self:center;min-height:46px;padding:0 22px;border:0;border-radius:12px;background:#29242e;color:#fff}
.progress-track{grid-column:1/-1;height:7px;overflow:hidden;border-radius:7px;background:rgba(42,37,47,.1)}
.progress-track i{display:block;width:0;height:100%;border-radius:inherit;background:#89d54e;transition:width .32s ease}
.learning-progress-list{display:grid;gap:0;margin:20px 0 0;padding:0;list-style:none}
.learning-progress-list li{position:relative}
.learning-progress-list li:not(:last-child)::after{content:"";position:absolute;left:21px;top:50px;bottom:-8px;width:1px;background:rgba(42,37,47,.14)}
.learning-progress-list button{width:100%;min-height:72px;display:grid;grid-template-columns:44px minmax(0,1fr) 26px;align-items:center;gap:12px;padding:10px 4px;border:0;border-radius:12px;background:transparent;color:#29242e;text-align:left;cursor:pointer}
.learning-progress-list button:hover{background:rgba(255,255,255,.6)}
.learning-progress-list button>span{width:36px;height:36px;display:grid;place-items:center;border:1px solid rgba(42,37,47,.16);border-radius:50%;background:#f3f0e8;color:#746e77;font-size:11px;font-weight:800;z-index:1}
.learning-progress-list strong,.learning-progress-list small{display:block}.learning-progress-list strong{font-size:14px}.learning-progress-list small{margin-top:4px;color:#746d77;font-size:12px;line-height:1.35}
.learning-progress-list button>i{width:10px;height:10px;border-radius:50%;background:rgba(42,37,47,.16)}
.learning-progress-list .is-complete button>span{border-color:#89d54e;background:#e8f7dc;color:#315a1b}.learning-progress-list .is-complete button>i{background:#89d54e}
.learning-progress-list .is-current button{background:#eee8f7}.learning-progress-list .is-current button>i{background:#7253b7;box-shadow:0 0 0 5px rgba(114,83,183,.13)}
.my-works-panel .works-storage-note{margin:0 0 18px;border-radius:12px;background:#ece7f2}
.my-works-panel .works-list{margin-top:0}

@media(max-width:700px){body.works-open main{width:calc(100% - 24px)!important;padding-top:78px!important}.my-heading{padding-bottom:16px}.my-heading h2{font-size:32px}.my-heading p{font-size:12px}.my-tabs{top:62px;margin:14px 0 22px}.my-tabs button{min-height:40px;padding:0 6px;font-size:12px}.progress-resume{grid-template-columns:1fr;padding-top:12px}.progress-resume h3{font-size:22px}.progress-resume .primary-button{justify-self:start}.panel-heading{align-items:start}.panel-heading h3{font-size:21px}.panel-heading .primary-button{min-height:40px;padding:0 12px}}

/* Personal record system: learning and finished work share one quiet language. */
.activity-widget{padding:22px;border-radius:16px;background:#ebe9e2;color:#29242e}
.activity-widget-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:18px}
.activity-widget-head h3,.daily-activity h3{margin:0;color:#29242e;font-size:20px;line-height:1.15}
.activity-widget-head p,.daily-activity header p{margin:6px 0 0;color:#6c6570;font-size:12px;line-height:1.45}
.activity-legend{display:flex;align-items:center;gap:12px;color:#655e69;font-size:11px;white-space:nowrap}
.activity-legend span{display:inline-flex;align-items:center;gap:5px}.activity-legend i{width:10px;height:10px;display:block;border-radius:3px;background:#dcefc8}.activity-legend i.is-work{border-radius:50%;background:#b9a1ea}
.activity-weekdays,.activity-calendar{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:8px}
.activity-weekdays{margin-bottom:8px;color:#817a84;font-size:11px;text-align:center}.activity-weekdays span{padding-block:3px}
.activity-day-placeholder{aspect-ratio:1}
.activity-day{position:relative;aspect-ratio:1;min-height:44px;display:grid;place-items:center;padding:0;border:0;border-radius:14px;background:rgba(255,255,255,.55);color:#3d3741;font-size:13px;font-weight:750;cursor:pointer;transition:transform .18s ease,background-color .18s ease,box-shadow .18s ease}
.activity-day:hover{transform:translateY(-1px);background:#fff}.activity-day:focus-visible{outline:3px solid rgba(114,83,183,.35);outline-offset:2px}
.activity-day.is-today span{width:28px;height:28px;display:grid;place-items:center;border-radius:50%;background:#29242e;color:#fff}
.activity-day.has-learning{background:#dff2cb}.activity-day.has-work::before{content:"";position:absolute;left:7px;bottom:7px;width:8px;height:8px;border-radius:50%;background:#9878d4}
.activity-day.is-selected{outline:2px solid #29242e;outline-offset:2px}.activity-day i{position:absolute;left:50%;bottom:6px;width:14px;height:2px;border-radius:2px;background:transparent;transform:translateX(-50%)}.activity-day.has-learning i{background:#76bb43}
.daily-activity{margin-top:14px;padding:20px 22px;border-radius:16px;background:#fff}
.daily-activity>header{display:flex;align-items:flex-start;justify-content:space-between;gap:18px;padding-bottom:14px;border-bottom:1px solid rgba(42,37,47,.1)}
.daily-activity>header>span{padding:5px 8px;border-radius:8px;background:#eeebf4;color:#5d4a7c;font-size:11px;font-weight:800;white-space:nowrap}
.daily-activity-list{display:grid}.daily-activity-item{display:grid;grid-template-columns:18px minmax(0,1fr) auto;align-items:start;gap:12px;padding:15px 0;border-bottom:1px solid rgba(42,37,47,.08)}
.daily-activity-item>span{width:14px;height:14px;margin-top:3px;border-radius:4px;background:#82c84e}.daily-activity-item.is-work>span{border-radius:50%;background:#9878d4}
.daily-activity-item small,.daily-activity-item strong,.daily-activity-item p{display:block}.daily-activity-item small{margin-bottom:3px;color:#776e7a;font-size:11px}.daily-activity-item strong{font-size:14px}.daily-activity-item p{margin:4px 0 0;color:#6b636e;font-size:12px;line-height:1.4}.daily-activity-item time{color:#817983;font-size:11px;font-variant-numeric:tabular-nums}
.daily-activity-empty{margin:0;padding:24px 0 4px;color:#746c78;font-size:13px;line-height:1.5;text-align:center}.daily-activity-empty[hidden]{display:none}
.my-progress-panel .progress-resume{margin-top:28px}

.my-works-panel .works-list{display:grid;gap:14px}.my-works-panel .work-swipe{border-radius:16px}
.my-works-panel .work-item{display:block;padding:0;overflow:hidden;border-radius:16px;background:#fff;box-shadow:none;backdrop-filter:none}
.work-record{display:grid;grid-template-columns:66px minmax(0,1fr) auto;align-items:center;gap:14px;padding:16px}
.my-works-panel .work-cover{position:relative;grid-row:auto;width:66px;height:66px;display:grid;place-items:center;border-radius:14px;background:linear-gradient(145deg,#dff2cb,#e9e2f5 58%,#d9e9ef);color:#49385f;overflow:hidden}
.my-works-panel .work-cover span{position:relative;z-index:1;font-size:14px}.my-works-panel .work-cover i{position:absolute;display:block;width:32px;height:32px;border:1px solid rgba(255,255,255,.74);border-radius:50%;transform:translate(14px,14px)}
.my-works-panel .work-info small{color:#7658ad;font-size:11px;font-weight:800}.my-works-panel .work-info strong{font-size:15px}.my-works-panel .work-info span{font-size:11px}
.my-works-panel .work-player{grid-column:auto;display:grid;grid-template-columns:40px 40px minmax(90px,1fr) 40px 40px;gap:8px;padding:10px 14px;border:0;border-top:1px solid rgba(42,37,47,.08);border-radius:0;background:#f0edf4;box-shadow:none;backdrop-filter:none}
.my-works-panel .work-player-toggle{background:#29242e!important;color:#fff!important}.my-works-panel .work-player input{accent-color:#7253b7}

@media(max-width:700px){.activity-widget{padding:16px}.activity-widget-head{display:grid;gap:12px}.activity-legend{gap:10px}.activity-weekdays,.activity-calendar{gap:5px}.activity-day{min-height:38px;border-radius:11px;font-size:12px}.activity-day.is-today span{width:25px;height:25px}.daily-activity{padding:16px}.work-record{grid-template-columns:54px minmax(0,1fr) auto;gap:10px;padding:12px}.my-works-panel .work-cover{width:54px;height:54px;border-radius:12px}.my-works-panel .work-actions a{padding-inline:10px}.my-works-panel .work-player{grid-template-columns:38px 34px minmax(64px,1fr) 34px 38px;padding:8px 10px;gap:5px}}

/* My uses one paper background; the monthly record is a compact contribution heatmap. */
body.works-open{--my-page:#f3f0e8;--my-card:#fff;--my-subtle:#eeeae3;background:var(--my-page)!important}
body.works-open .my-panel{background:transparent}
.activity-widget{padding:16px 18px;border-radius:16px;background:var(--my-card)}
.activity-widget-head{align-items:center;margin-bottom:12px}
.activity-month-nav{display:flex;gap:5px}
.activity-month-nav button{width:36px;height:36px;display:grid;place-items:center;padding:0;border:1px solid rgba(42,37,47,.1);border-radius:10px;background:var(--my-subtle);color:#3e3742;cursor:pointer}
.activity-month-nav button:disabled{opacity:.3;cursor:default}.activity-month-nav svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.activity-calendar{display:grid;grid-template-rows:repeat(7,12px);grid-auto-flow:column;grid-auto-columns:12px;gap:4px;width:max-content;max-width:100%;padding:3px;overflow-x:auto;scrollbar-width:thin}
.activity-day-placeholder,.activity-day{width:12px;height:12px;min-height:12px;aspect-ratio:auto;border-radius:3px}
.activity-day{display:block;background:#e8e4dd;font-size:0;transition:transform .16s ease,outline-color .16s ease}
.activity-day:hover{background:#ded9d1;transform:scale(1.18)}
.activity-day span,.activity-day i{position:absolute;width:1px!important;height:1px!important;margin:-1px!important;padding:0!important;overflow:hidden!important;clip:rect(0 0 0 0)!important;white-space:nowrap!important;border:0!important}
.activity-day.level-0{background:#e8e4dd}.activity-day.level-1{background:#d9efc7}.activity-day.level-2{background:#a8d97d}.activity-day.level-3{background:#70b443}
.activity-day.has-learning{background:#a8d97d}.activity-day.level-3.has-learning{background:#61a836}
.activity-day.has-work::before{left:auto;right:-2px;bottom:-2px;width:5px;height:5px;border:1px solid #fff;background:#8f70ca}
.activity-day.is-today span{width:1px!important;height:1px!important;background:transparent!important}.activity-day.is-today{box-shadow:0 0 0 2px var(--my-card),0 0 0 3px #746d77}
.activity-day.is-selected{outline:2px solid #29242e;outline-offset:2px}
.activity-legend{margin-top:12px;flex-wrap:wrap}.activity-intensity{margin-left:auto}.activity-intensity i:nth-of-type(1){background:#d9efc7}.activity-intensity i:nth-of-type(2){background:#a8d97d}.activity-intensity i:nth-of-type(3){background:#70b443}
.daily-activity,.my-works-panel .work-item{background:var(--my-card)}

/* Saved works use an attached, quiet mini player below each record. */
.my-works-panel .work-player{position:relative;display:grid;grid-template-columns:44px minmax(0,1fr) 40px 40px;align-items:center;gap:10px;padding:10px 12px 15px;border:0;border-top:1px solid rgba(42,37,47,.08);border-radius:0;background:#f0edf4;box-shadow:none;backdrop-filter:none}
.work-player-art{width:44px;height:44px;display:grid;place-items:center;border-radius:10px;background:linear-gradient(145deg,#a9dc80,#b9a4e1);color:#30263c;font-size:11px;font-weight:850}
.work-player-copy{min-width:0}.work-player-copy strong,.work-player-copy span{display:block;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.work-player-copy strong{color:#29242e;font-size:13px}.work-player-copy span{margin-top:3px;color:#756d78;font-size:10px}
.my-works-panel .work-player button{width:40px;height:40px;border-radius:50%;background:transparent}.my-works-panel .work-player-toggle{background:#29242e!important;color:#fff!important}.my-works-panel .work-player-next{color:#29242e}
.my-works-panel .work-player>input[type=range]{position:absolute;left:12px;right:12px;bottom:3px;width:calc(100% - 24px);height:8px;margin:0}
.my-works-panel .work-player time{display:none!important}
@media(max-width:700px){.activity-widget{padding:14px}.activity-widget-head{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px}.activity-widget-head>div:first-child{min-width:0}.activity-month-nav{flex:0 0 auto}.activity-calendar{grid-template-rows:repeat(7,11px);grid-auto-columns:11px;gap:3px}.activity-day-placeholder,.activity-day{width:11px;height:11px;min-height:11px}.activity-legend{gap:8px}.my-works-panel .work-player{grid-template-columns:40px minmax(0,1fr) 38px 38px;gap:7px;padding:9px 10px 14px}.work-player-art{width:40px;height:40px}.my-works-panel .work-player button{width:38px;height:38px}.my-works-panel .work-player>input[type=range]{left:10px;right:10px;width:calc(100% - 20px)}}

.controller-concept{width:100%;min-height:170px;color:#2c2633}
.controller-concept b,.controller-concept small{display:block}.controller-concept b{font-size:13px}.controller-concept small{margin-top:4px;color:#625a69;font-size:11px;line-height:1.35}
.controller-signal-flow{display:grid;grid-template-columns:minmax(90px,1fr) 34px minmax(110px,1.15fr) 34px minmax(100px,1fr);grid-template-rows:1fr 1fr;align-items:center;gap:8px}
.controller-signal-flow>div{padding:12px;border-radius:12px;background:#f5f2f7;text-align:center}.controller-signal-flow>div:nth-child(1){grid-column:1;grid-row:1}.controller-signal-flow>div:nth-child(2){grid-column:1;grid-row:2}.controller-signal-flow>i:nth-child(3){grid-column:2;grid-row:1/3}.controller-signal-flow .concept-mixer{grid-column:3;grid-row:1/3;background:#e8f6dc}.controller-signal-flow>i:nth-child(5){grid-column:4;grid-row:1/3}.controller-signal-flow>div:nth-child(6){grid-column:5;grid-row:1/3}
.controller-signal-flow>i{position:relative;height:2px;background:#7253b7}.controller-signal-flow>i::after{content:"";position:absolute;right:-1px;top:-3px;width:8px;height:8px;background:#7253b7;clip-path:polygon(0 0,100% 50%,0 100%)}
.controller-zones{display:grid;grid-template-columns:1fr .9fr 1fr 1fr 1fr;align-items:stretch;gap:6px;padding:18px 0}.controller-zones span{display:grid;place-content:center;min-height:112px;padding:10px;border-radius:12px;background:#f5f2f7;text-align:center}.controller-zones span:nth-child(3){background:#e8f6dc}.controller-zones span:nth-child(4){background:#eee8f7}
.controller-effects{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;align-items:stretch}.controller-effects span{display:grid;align-content:center;justify-items:center;min-height:150px;padding:12px;border-radius:12px;background:#f5f2f7;text-align:center}.controller-effects span>i{width:42px;height:28px;margin-bottom:12px;background:linear-gradient(90deg,#7253b7 0 18%,transparent 18% 28%,#79cf43 28% 48%,transparent 48% 58%,#7253b7 58% 72%,transparent 72% 82%,#79cf43 82%);mask:linear-gradient(135deg,transparent 0 20%,#000 21% 78%,transparent 79%)}
@media(max-width:700px){
  .controller-concept{min-height:150px}
  .controller-signal-flow{grid-template-columns:minmax(76px,1fr) 20px minmax(84px,1fr) 20px minmax(78px,1fr);gap:4px}.controller-signal-flow>div{padding:9px 5px}.controller-concept b{font-size:11px}.controller-concept small{font-size:10px}
  .controller-zones{grid-template-columns:repeat(5,minmax(74px,1fr));overflow-x:auto;scroll-snap-type:x mandatory}.controller-zones span{min-height:98px;scroll-snap-align:start}
  .controller-effects{grid-template-columns:repeat(2,1fr)}.controller-effects span{min-height:86px}.controller-effects span>i{margin-bottom:7px}
}

/* C environment for the launch screen and DJ console.
   Layout, sizing and control geometry intentionally remain owned by the rules above. */
:root{
  --c-canvas-a:#b9dedf;
  --c-canvas-b:#dce8eb;
  --c-canvas-c:#d9ccec;
  --c-canvas-d:#efdcda;
  --c-ink:#211c29;
  --c-muted:#665e70;
  --c-purple:#7253b7;
  --c-purple-soft:#e9e0f7;
  --c-action:#baff2e;
  --c-surface:rgba(255,255,255,.78);
  --c-line:rgba(70,58,88,.13);
  --c-shadow:0 18px 46px rgba(61,51,82,.14);
}

body:not(.hub-open):not(.course-open):not(.practice-open):not(.works-open){
  background:linear-gradient(145deg,var(--c-canvas-a) 0%,var(--c-canvas-b) 43%,var(--c-canvas-c) 76%,var(--c-canvas-d) 100%);
  color:var(--c-ink);
}
body:not(.hub-open):not(.course-open):not(.practice-open):not(.works-open) .intro{
  background:
    radial-gradient(circle at 14% 22%,rgba(186,255,46,.28),transparent 32%),
    radial-gradient(circle at 87% 78%,rgba(114,83,183,.22),transparent 35%),
    linear-gradient(145deg,var(--c-canvas-a) 0%,var(--c-canvas-b) 43%,var(--c-canvas-c) 76%,var(--c-canvas-d) 100%);
}
body:not(.hub-open):not(.course-open):not(.practice-open):not(.works-open) .wordmark,
body:not(.hub-open):not(.course-open):not(.practice-open):not(.works-open) .launch-title{
  color:var(--c-ink);
}
body:not(.hub-open):not(.course-open):not(.practice-open):not(.works-open) .product-kicker{
  border-color:rgba(60,48,77,.16);
  background:rgba(255,255,255,.62);
  color:#493b5c;
}
body:not(.hub-open):not(.course-open):not(.practice-open):not(.works-open) .slogan-line{
  background:rgba(255,255,255,.72);
  color:var(--c-ink);
  box-shadow:0 8px 24px rgba(68,54,92,.08);
}
body:not(.hub-open):not(.course-open):not(.practice-open):not(.works-open) .launch-tagline{
  background:rgba(102,77,167,.9);
  color:#fff!important;
}
body:not(.hub-open):not(.course-open):not(.practice-open):not(.works-open) .intro-copy>p{
  color:#50465d;
}
body:not(.hub-open):not(.course-open):not(.practice-open):not(.works-open) .hero-card{
  border-color:rgba(255,255,255,.8);
  background:linear-gradient(145deg,rgba(255,255,255,.72),rgba(232,224,247,.44) 56%,rgba(222,240,237,.48));
  box-shadow:inset 0 1px 0 rgba(255,255,255,.96),0 30px 68px rgba(65,50,91,.16);
}
body:not(.hub-open):not(.course-open):not(.practice-open):not(.works-open) .intro-visual:hover .hero-card{
  background:linear-gradient(145deg,rgba(255,255,255,.82),rgba(232,224,247,.52) 56%,rgba(222,240,237,.56));
  box-shadow:inset 0 1px 0 #fff,0 38px 76px rgba(65,50,91,.19);
}
body:not(.hub-open):not(.course-open):not(.practice-open):not(.works-open) .enter-app{
  border:1px solid rgba(66,91,26,.16);
  background:var(--c-action);
  color:#18200f;
  box-shadow:0 16px 34px rgba(70,86,39,.2);
}
body:not(.hub-open):not(.course-open):not(.practice-open):not(.works-open) .enter-app span{
  color:#4f397e;
}
body:not(.hub-open):not(.course-open):not(.practice-open):not(.works-open) .enter-app:hover{
  background:#c8ff57;
  color:#18200f;
}

body.practice-open{
  background:
    radial-gradient(circle at 10% 34%,rgba(186,255,46,.2),transparent 31%),
    radial-gradient(circle at 90% 72%,rgba(114,83,183,.22),transparent 34%),
    linear-gradient(145deg,var(--c-canvas-a) 0%,var(--c-canvas-b) 45%,var(--c-canvas-c) 78%,var(--c-canvas-d) 100%)!important;
  color:var(--c-ink);
}
body.practice-open .practice-brand a{color:var(--c-ink)}
body.practice-open.has-controller-3d main::before{color:#554b61}
body.practice-open .mix-recorder{
  border-color:rgba(255,255,255,.82);
  background:rgba(255,255,255,.88);
  color:var(--c-ink);
  box-shadow:var(--c-shadow);
}
body.practice-open .mix-recorder small{color:var(--c-muted)}
body.practice-open .mix-recorder button{background:#2b2435;color:#fff}
body.practice-open .mix-recorder.is-recording button{background:var(--c-purple)}
body.practice-open .recorder-light{background:#a8a0af}
body.practice-open .mix-recorder.is-recording .recorder-light{background:var(--c-purple);box-shadow:0 0 0 5px rgba(114,83,183,.14)}
body.practice-open .controller-3d{color:var(--c-ink)}
body.practice-open .controller-3d .model-label,
body.practice-open .controller-3d .model-help{color:#4f4658}
body.practice-open .controller-3d .model-button{color:#2f2937}
body.practice-open .controller-3d .model-button:hover{background:rgba(114,83,183,.16)}
body.practice-open .controller-3d .model-button:active{background:rgba(186,255,46,.32)}
body.practice-open .model-deck-tools{
  border:1px solid rgba(255,255,255,.82);
  background:rgba(255,255,255,.8);
  box-shadow:var(--c-shadow);
}
body.practice-open .model-deck-tool strong{color:#3c3348}
body.practice-open .model-deck-tool label{color:#5e5468}
body.practice-open .model-deck-tool button{background:#2b2435;color:#fff}
body.practice-open .model-deck-tools input[type=number]{border-color:#d7cee3;background:#fff;color:#2b2435}
body.practice-open .model-restore{background:var(--c-purple-soft);color:#4b386d}
body.practice-open .app-tabbar{
  border-color:rgba(255,255,255,.82);
  background:rgba(255,255,255,.82);
  box-shadow:var(--c-shadow);
}
body.practice-open .app-tab{color:#756c7c}
body.practice-open .app-tab.is-active{background:var(--c-purple-soft);color:#593c96;box-shadow:none}
body.practice-open .app-tab:focus-visible,
body.practice-open .controller-3d button:focus-visible,
body.practice-open .mix-recorder button:focus-visible,
body:not(.hub-open):not(.course-open):not(.practice-open):not(.works-open) .enter-app:focus-visible{
  outline:3px solid rgba(80,53,145,.72);
  outline-offset:3px;
}
body.practice-open ::selection,
body:not(.hub-open):not(.course-open):not(.practice-open):not(.works-open) ::selection{
  background:#d8c5f2;
  color:#241a31;
}

/* Unified learning view. The approved A + C page now lives inside index.html. */
body.learning-open .intro,
body.practice-open .intro,
body.works-open .intro{display:none!important}
.unified-learning[hidden]{display:none!important}
body.learning-open{
  --learn-ink:#1d1922;
  --learn-muted:#6b6370;
  --learn-violet:#7952cf;
  --learn-violet-soft:#eee7fa;
  --learn-lime:#baff2e;
  --learn-surface:rgba(255,255,255,.88);
  --learn-line:rgba(42,34,48,.12);
  min-width:320px;
  min-height:100dvh;
  color:var(--learn-ink);
  background:linear-gradient(150deg,#d8ece9 0%,#e7edf2 42%,#ddd4ee 75%,#efdeda 100%)!important;
}
html:has(body.learning-open){min-height:100%;background:#252329;scroll-behavior:smooth}
body.learning-open .masthead{display:none!important}
body.learning-open main{
  width:100%!important;
  max-width:none!important;
  min-height:100dvh!important;
  height:auto!important;
  max-height:none!important;
  margin:0!important;
  padding:0!important;
  overflow:visible!important;
}
body.learning-open main>:not(.unified-learning){display:none!important}
body.learning-open .unified-learning{
  position:relative;
  width:min(520px,100%);
  min-height:100dvh;
  display:block;
  margin:auto;
  padding:0 18px 110px;
}
.learning-environment{position:fixed;z-index:-1;inset:0;pointer-events:none;overflow:hidden}
.learning-environment i{position:absolute;width:44rem;height:44rem;border-radius:50%;filter:blur(78px);opacity:.22}
.learning-environment i:first-child{left:-28rem;top:-24rem;background:#bafa52}
.learning-environment i:last-child{right:-30rem;bottom:-27rem;background:#9e78df}
.learning-topbar{height:72px;display:grid;grid-template-columns:42px 1fr 42px;align-items:center}
.learning-topbar-space{width:42px;height:42px}
.learning-wordmark{justify-self:center;padding:0;border:0;background:transparent;color:var(--learn-ink);cursor:pointer}
.learning-main{display:grid;gap:16px}
.learning-header{display:grid;grid-template-columns:1fr auto;align-items:end;gap:18px;padding:18px 6px 2px}
.learning-header h1{max-width:8em;margin:0;font-size:clamp(2rem,9vw,2.65rem);line-height:1.03;letter-spacing:-.035em;text-wrap:balance}
.learning-header p{max-width:27em;margin:10px 0 0;color:#5f5865;font-size:.83rem;line-height:1.55;text-wrap:pretty}
.route-count{align-self:start;margin-top:8px;color:#5f5668;font:700 .75rem/1 Cubic,ui-monospace,monospace;font-variant-numeric:tabular-nums}
.stage-tabs{height:44px;display:grid;grid-template-columns:1fr 1fr;gap:4px;padding:4px;border-radius:14px;background:rgba(255,255,255,.46)}
.stage-tabs button{border:0;border-radius:10px;background:transparent;color:#665e6b;font-weight:700;cursor:pointer}
.stage-tabs button.is-active{background:#fff;color:var(--learn-ink);box-shadow:0 5px 14px rgba(61,49,73,.1)}
.learning-panel{padding:14px;border-radius:24px;background:var(--learn-surface);box-shadow:0 20px 52px rgba(56,44,68,.12)}
.current-lesson{display:grid;grid-template-columns:76px minmax(0,1fr);gap:14px;padding:8px 8px 15px;border-bottom:1px solid var(--learn-line)}
.track-art{position:relative;width:76px;height:76px;display:grid;grid-template-columns:repeat(5,1fr);align-items:end;gap:3px;padding:16px 12px;overflow:hidden;border-radius:15px;background:#211d27;color:var(--learn-lime);box-shadow:0 12px 24px rgba(45,35,55,.2)}
.track-art::after{content:"";position:absolute;inset:8px;border:1px solid rgba(255,255,255,.12);border-radius:10px}
.track-art span{position:absolute;z-index:2;left:12px;top:10px;font:700 .69rem/1 Cubic,monospace}
.track-art i{position:relative;z-index:1;height:var(--h,35%);border-radius:5px 5px 2px 2px;background:currentColor}
.track-art i:nth-of-type(1){--h:38%}.track-art i:nth-of-type(2){--h:67%}.track-art i:nth-of-type(3){--h:48%}.track-art i:nth-of-type(4){--h:82%}.track-art i:nth-of-type(5){--h:57%}
.current-copy{min-width:0;padding-top:2px}
.current-state{display:block;margin-bottom:4px;color:var(--learn-violet);font-size:.68rem;font-weight:800}
.current-copy h2{margin:0;font-size:1.24rem;line-height:1.15;letter-spacing:-.02em;text-wrap:balance}
.current-copy p{margin:7px 0 0;color:var(--learn-muted);font-size:.72rem;line-height:1.46;text-wrap:pretty}
.unified-learning .primary-action{grid-column:1/-1;min-height:48px;display:flex;align-items:center;justify-content:space-between;padding:0 15px;border-radius:13px;background:var(--learn-lime);color:var(--learn-ink);font-weight:800;transition:transform .18s ease,background .18s ease}
.unified-learning .primary-action:hover{background:#c8ff47;transform:translateY(-1px)}
.unified-learning .primary-action svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.route-progress{grid-column:1/-1;height:5px;overflow:hidden;border-radius:5px;background:#e5e0e7}
.route-progress i{display:block;width:0;height:100%;border-radius:inherit;background:var(--learn-violet);transition:width .45s cubic-bezier(.16,1,.3,1)}
.route-heading{padding:18px 7px 9px}
.route-heading h2{margin:0;font-size:1rem;line-height:1.2}
.route-heading p{margin:4px 0 0;color:var(--learn-muted);font-size:.69rem}
.lesson-list{list-style:none;margin:0;padding:0 5px}
.lesson-list li{border-top:1px solid var(--learn-line)}
.lesson-list a{min-height:66px;display:grid;grid-template-columns:36px minmax(0,1fr) auto;align-items:center;gap:10px;padding:9px 2px;color:inherit;text-decoration:none}
.lesson-list a:hover strong{color:var(--learn-violet)}
.lesson-number{color:#756b7b;font:700 .7rem/1 Cubic,monospace}
body.learning-open .lesson-copy{min-width:0;order:initial;grid-column:auto;grid-row:auto;align-self:auto}
body.learning-open .lesson-copy strong,body.learning-open .lesson-copy small{display:block}
body.learning-open .lesson-copy strong{font-size:.82rem;line-height:1.25}
body.learning-open .lesson-copy small{margin-top:4px;overflow:hidden;color:var(--learn-muted);font-size:.66rem;text-overflow:ellipsis;white-space:nowrap}
.lesson-status{display:flex;align-items:center;gap:6px;color:#746a79;font-size:.63rem;font-style:normal;white-space:nowrap}
.lesson-status svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.is-complete .lesson-status,.is-complete .lesson-number{color:#5f8e18}
.skills-panel{padding:22px}.skills-intro h2{margin:0;font-size:1.35rem;line-height:1.15}.skills-intro p{margin:9px 0 18px;color:var(--learn-muted);font-size:.78rem;line-height:1.55}
.skill-list{list-style:none;margin:0;padding:0}.skill-list li{min-height:68px;display:grid;grid-template-columns:74px 1fr auto;align-items:center;gap:10px;border-top:1px solid var(--learn-line)}.skill-list span{color:var(--learn-violet);font:700 .66rem/1 Cubic,monospace}.skill-list strong{font-size:.76rem}.skill-list em{color:var(--learn-muted);font-size:.62rem;font-style:normal}
body.learning-open .app-tabbar{
  position:fixed;
  z-index:60;
  left:50%;
  right:auto;
  bottom:0;
  width:min(760px,100%);
  min-height:76px;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:4px;
  padding:8px 14px calc(8px + env(safe-area-inset-bottom));
  border:0;
  border-top:1px solid rgba(37,29,43,.08);
  border-radius:0;
  background:rgba(255,255,255,.94);
  box-shadow:0 -12px 34px rgba(57,44,68,.09);
  backdrop-filter:none;
  transform:translateX(-50%);
}
body.learning-open .app-tab{min-height:56px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;border-radius:13px;background:transparent;color:#79717e;font-size:.65rem;font-weight:700}
body.learning-open .app-tab.is-active{background:var(--learn-violet-soft);color:var(--learn-ink)}
body.learning-open .app-tab svg{width:22px;height:22px}
body.learning-open :focus-visible{outline:3px solid var(--learn-lime);outline-offset:3px}
body.learning-open ::selection{background:var(--learn-lime);color:var(--learn-ink)}
@media(min-width:760px){
  body.learning-open .unified-learning{width:min(760px,100%);padding-inline:30px}
  .learning-panel{padding:22px}
  .current-lesson{grid-template-columns:96px minmax(0,1fr) 150px;align-items:center}
  .track-art{width:96px;height:96px}
  .unified-learning .primary-action{grid-column:3;grid-row:1;align-self:center}
  .route-progress{grid-column:2/4}
  .lesson-list a{min-height:72px}
}
@media(prefers-reduced-motion:reduce){html:has(body.learning-open){scroll-behavior:auto}.unified-learning .primary-action,.route-progress i{transition:none}}

/* My view: the same C environment and A content surfaces as unified learning. */
body.works-open{
  --my-ink:#1d1922;
  --my-muted:#6b6370;
  --my-violet:#7952cf;
  --my-violet-soft:#eee7fa;
  --my-lime:#baff2e;
  --my-surface:rgba(255,255,255,.88);
  --my-line:rgba(42,34,48,.12);
  min-width:320px;
  min-height:100dvh;
  height:auto!important;
  max-height:none!important;
  overflow-x:hidden!important;
  overflow-y:auto!important;
  touch-action:pan-y;
  color:var(--my-ink);
  background:linear-gradient(150deg,#d8ece9 0%,#e7edf2 42%,#ddd4ee 75%,#efdeda 100%)!important;
}
html:has(body.works-open){height:auto!important;min-height:100%;overflow-x:hidden!important;overflow-y:auto!important;background:#252329;scroll-behavior:smooth}
body.works-open .masthead{display:none!important}
html[data-entry-view="my"] body>.masthead{display:none!important}
body.works-open main{
  width:100%!important;
  max-width:none!important;
  min-height:100dvh!important;
  height:auto!important;
  max-height:none!important;
  margin:0!important;
  padding:0!important;
  overflow:visible!important;
}
body.works-open .my-library{
  position:relative;
  width:min(520px,100%)!important;
  min-height:100dvh!important;
  margin:0 auto!important;
  padding:0 18px 110px!important;
  touch-action:pan-y;
}
.my-environment{position:fixed;z-index:-1;inset:0;pointer-events:none;overflow:hidden}
.my-environment i{position:absolute;width:44rem;height:44rem;border-radius:50%;filter:blur(78px);opacity:.22}
.my-environment i:first-child{left:-28rem;top:-24rem;background:#bafa52}
.my-environment i:last-child{right:-30rem;bottom:-27rem;background:#9e78df}
.my-topbar{height:72px;display:grid;grid-template-columns:42px 1fr 42px;align-items:center}
.my-topbar>span{width:42px;height:42px}
.my-wordmark{justify-self:center;color:var(--my-ink);text-decoration:none}
.my-heading{display:block;padding:18px 6px 2px;border:0}
.my-heading h2{margin:0;color:var(--my-ink);font-size:clamp(2rem,9vw,2.65rem);line-height:1.03;letter-spacing:-.035em}
.my-tabs{position:static;width:100%;height:44px;grid-template-columns:repeat(2,1fr);gap:4px;margin:16px 0;padding:4px;border:0;border-radius:14px;background:rgba(255,255,255,.46);backdrop-filter:none}
.my-tabs button{min-height:36px;padding:0 12px;border-radius:10px;color:#665e6b;font-weight:700}
.my-tabs button.is-active{background:#fff;color:var(--my-ink);box-shadow:0 5px 14px rgba(61,49,73,.1)}
.my-progress-panel{display:grid;gap:16px}
.progress-widget,.activity-widget{padding:14px;border-radius:24px;background:var(--my-surface);box-shadow:0 20px 52px rgba(56,44,68,.12)}
.progress-resume{grid-template-columns:minmax(0,1fr);gap:14px;padding:8px 7px 18px;border-bottom:1px solid var(--my-line)}
.progress-resume span{margin-bottom:5px;color:var(--my-violet);font-size:.68rem}
.progress-resume h3{color:var(--my-ink);font-size:1.24rem;line-height:1.15;letter-spacing:-.02em}
.progress-resume p{margin-top:7px;color:var(--my-muted);font-size:.72rem;line-height:1.46}
.progress-resume .primary-button{justify-self:stretch;min-height:48px;padding:0 15px;border-radius:13px;background:var(--my-lime);color:var(--my-ink);font-weight:800;box-shadow:none}
.progress-resume .primary-button:hover{background:#c8ff47;transform:translateY(-1px)}
.progress-track{height:5px;background:#e5e0e7}
.progress-track i{background:var(--my-violet)}
.learning-progress-list{margin:5px 5px 0}
.learning-progress-list li:not(:last-child)::after{left:17px;top:48px;bottom:-7px;background:var(--my-line)}
.learning-progress-list button{min-height:66px;grid-template-columns:36px minmax(0,1fr) 22px;gap:10px;padding:9px 2px;border-radius:10px;color:var(--my-ink)}
.learning-progress-list button:hover{background:rgba(238,231,250,.72)}
.learning-progress-list button>span{width:auto;height:auto;border:0;border-radius:0;background:transparent;color:#756b7b;font:700 .7rem/1 Cubic,ui-monospace,monospace}
.learning-progress-list strong{font-size:.82rem;line-height:1.25}.learning-progress-list small{margin-top:4px;color:var(--my-muted);font-size:.66rem}
.learning-progress-list .is-complete button>span{border:0;background:transparent;color:#5f8e18}
.learning-progress-list .is-current button{background:var(--my-violet-soft)}
.activity-widget{display:grid;gap:12px;color:var(--my-ink)}
.activity-widget-head{align-items:center;margin:0;padding:4px 4px 2px}
.activity-widget-head h3,.daily-activity h3{color:var(--my-ink);font-size:1rem}
.activity-widget-head p,.daily-activity header p{color:var(--my-muted);font-size:.69rem}
.activity-month-nav button{width:36px;height:36px;border:0;border-radius:10px;background:var(--my-violet-soft);color:#55426f}
.activity-calendar{grid-template-rows:repeat(7,17px);grid-auto-columns:17px;gap:4px;width:max-content;max-width:100%;padding:3px 4px;overflow-x:auto}
.activity-day-placeholder,.activity-day{width:17px;height:17px;min-height:17px;border-radius:5px}
.activity-day.level-0{background:#e9e5ea}.activity-day.level-1{background:#dcf5bd}.activity-day.level-2{background:#a9dc73}.activity-day.level-3{background:#70b443}
.activity-day.has-learning{background:#a9dc73}.activity-day.level-3.has-learning{background:#61a836}
.activity-day.has-work::before{right:-2px;bottom:-2px;width:6px;height:6px;border-color:#fff;background:var(--my-violet)}
.activity-legend{margin:0;padding:0 4px;color:var(--my-muted)}
.activity-legend i.is-work{background:var(--my-violet)}
.daily-activity{margin:2px 4px 0;padding:15px 0 2px;border-top:1px solid var(--my-line);border-radius:0;background:transparent}
.daily-activity>header{padding:0 0 12px;border-bottom:1px solid var(--my-line)}
.daily-activity>header>span{background:var(--my-violet-soft);color:#5d4a7c}
.daily-activity-empty{padding:22px 0 6px;color:var(--my-muted)}
.daily-activity-item{border-color:var(--my-line)}
.my-works-panel{display:grid;gap:14px}
.my-works-panel .panel-heading{align-items:center;margin:0;padding:18px;border-radius:20px;background:var(--my-surface);box-shadow:0 20px 52px rgba(56,44,68,.1)}
.my-works-panel .panel-heading h3{color:var(--my-ink);font-size:1.24rem}
.my-works-panel .panel-heading .primary-button,.works-empty>.primary-button{min-height:44px;padding:0 16px;border:0;border-radius:12px;background:var(--my-lime);color:var(--my-ink);font-weight:800;box-shadow:none}
.my-works-panel .works-storage-note{margin:0;padding:13px 15px;border:0;border-radius:14px;background:rgba(238,231,250,.86);color:#50445f}
.my-works-panel .works-storage-note strong{color:#3f3450}
.my-works-panel .works-list{display:grid;gap:14px}
.my-works-panel .work-item,.my-works-panel .works-empty{border:0;background:var(--my-surface);box-shadow:0 20px 52px rgba(56,44,68,.1)}
.my-works-panel .work-player{background:var(--my-violet-soft)}
.my-works-panel .works-empty{margin:0;padding:18px;border-radius:24px}
.my-works-panel .works-empty-character{filter:drop-shadow(0 14px 24px rgba(66,48,88,.12))}
body.works-open .app-tabbar{
  position:fixed;
  z-index:60;
  left:50%;
  right:auto;
  bottom:0;
  width:min(760px,100%);
  min-height:76px;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:4px;
  padding:8px 14px calc(8px + env(safe-area-inset-bottom));
  border:0;
  border-top:1px solid rgba(37,29,43,.08);
  border-radius:0;
  background:rgba(255,255,255,.94);
  box-shadow:0 -12px 34px rgba(57,44,68,.09);
  backdrop-filter:none;
  transform:translateX(-50%);
}
body.works-open .app-tab{min-height:56px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;border-radius:13px;background:transparent;color:#79717e;font-size:.65rem;font-weight:700}
body.works-open .app-tab.is-active{background:var(--my-violet-soft);color:var(--my-ink);box-shadow:none}
body.works-open .app-tab svg{width:22px;height:22px}
body.works-open :focus-visible{outline:3px solid var(--my-lime);outline-offset:3px}
body.works-open ::selection{background:var(--my-lime);color:var(--my-ink)}
@media(min-width:760px){
  body.works-open .my-library{width:min(760px,100%)!important;padding-inline:30px!important}
  .progress-widget,.activity-widget{padding:22px}
  .progress-resume{grid-template-columns:minmax(0,1fr) 150px;align-items:center}
  .progress-resume .primary-button{grid-column:2;grid-row:1;align-self:center}
  .progress-track{grid-column:1/-1}
  .activity-widget{grid-template-columns:minmax(180px,.72fr) minmax(0,1.28fr);column-gap:24px}
  .activity-widget-head{grid-column:1/-1}
  .activity-calendar,.activity-legend{grid-column:1}
  .daily-activity{grid-column:2;grid-row:2/4;margin:0;padding:0 0 0 24px;border-top:0;border-left:1px solid var(--my-line)}
}
@media(max-width:700px){
  .my-topbar{height:72px}
  .my-heading{padding-top:12px}
  .my-tabs{top:auto;margin:14px 0 16px}
  .progress-resume{padding-top:8px}
  .progress-resume h3{font-size:1.18rem}
  .activity-widget{padding:14px}
  .activity-widget-head{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px}
  .my-works-panel .panel-heading{padding:15px}
  .my-works-panel .panel-heading h3{font-size:1.18rem}
  .my-works-panel .works-empty{grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);padding:14px}
}
@media(prefers-reduced-motion:reduce){html:has(body.works-open){scroll-behavior:auto}.progress-resume .primary-button{transition:none}}

/* My option A: one progress summary and one compact player per saved work. */
.recent-progress[hidden],.work-menu[hidden]{display:none!important}
.recent-progress{padding:16px 5px 0}
.recent-progress h3{margin:0 0 4px;color:var(--my-ink);font-size:.78rem;line-height:1.2}
.recent-progress .learning-progress-list{margin:0}
.recent-progress .learning-progress-list li:not(:last-child)::after{display:none}
.recent-progress .learning-progress-list li+li{border-top:1px solid var(--my-line)}
.recent-progress .learning-progress-list button{min-height:58px}
.my-works-panel .work-swipe{overflow:visible;border-radius:16px}
.my-works-panel .work-item.work-player{
  position:relative;
  display:grid;
  grid-template-columns:52px minmax(0,1fr) 44px 40px;
  grid-template-rows:auto 10px;
  align-items:center;
  gap:8px 10px;
  min-height:84px;
  padding:12px 12px 10px;
  overflow:visible;
  border-radius:16px;
  background:var(--my-surface);
  box-shadow:0 20px 52px rgba(56,44,68,.1);
}
.my-works-panel .work-item.work-player .work-cover{grid-column:1;grid-row:1;width:52px;height:52px;border-radius:12px}
.my-works-panel .work-item.work-player .work-info{grid-column:2;grid-row:1;min-width:0}
.my-works-panel .work-item.work-player .work-info strong,.my-works-panel .work-item.work-player .work-info span{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.my-works-panel .work-item.work-player .work-info strong{color:var(--my-ink);font-size:.84rem;line-height:1.25}
.my-works-panel .work-item.work-player .work-info span{margin-top:5px;color:var(--my-muted);font-size:.65rem}
.my-works-panel .work-item.work-player .work-player-toggle{grid-column:3;grid-row:1;width:44px;height:44px;background:var(--my-ink)!important;color:#fff!important}
.my-works-panel .work-item.work-player .work-menu-toggle{grid-column:4;grid-row:1;width:40px;height:40px;border-radius:12px;color:#655b6d}
.my-works-panel .work-menu-toggle svg{fill:currentColor;stroke:none}
.my-works-panel .work-item.work-player>input[type=range]{position:static;grid-column:1/-1;grid-row:2;width:100%;height:10px;margin:0}
.work-menu{position:absolute;z-index:8;right:10px;top:62px;min-width:104px;padding:5px;border:1px solid rgba(42,34,48,.1);border-radius:12px;background:#fff;box-shadow:0 14px 32px rgba(48,36,61,.18)}
.work-menu a,.work-menu button{width:100%;min-height:38px;display:flex;align-items:center;padding:0 12px;border:0;border-radius:8px;background:transparent;color:var(--my-ink);font-size:.75rem;text-decoration:none;cursor:pointer}
.work-menu a:hover,.work-menu button:hover{background:var(--my-violet-soft)}
.work-menu button{color:#9b342d}
@media(max-width:420px){
  .my-works-panel .work-item.work-player{grid-template-columns:46px minmax(0,1fr) 42px 36px;gap:7px;padding-inline:10px}
  .my-works-panel .work-item.work-player .work-cover{width:46px;height:46px}
  .my-works-panel .work-item.work-player .work-player-toggle{width:42px;height:42px}
  .my-works-panel .work-item.work-player .work-menu-toggle{width:36px;height:36px}
}