:root{padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
*,*::before,*::after{box-sizing:border-box}
body{margin:0}
img{max-width:100%}
[hidden]{display:none!important}

/* Layout: builder column (library + sequence) beside a sticky 3D stage; stacks stage-first on phones */
:root{
  --bg:#EEF0EC; --surface:#FAFBF8; --line:#D6DAD3; --ink:#1D2320; --muted:#646C67;
  --accent:#3846B8; --accent-ink:#FFFFFF; --accent-soft:#E2E5F7;
  --stage:#E4E7E1; --figure:#EADCC8; --outline:#1D2320; --mat:#3846B8;
  --f-ui:"Hanken Grotesk",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  --f-sk:"Literata",Georgia,"Times New Roman",serif;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#111412; --surface:#191D1A; --line:#2B312D; --ink:#E5E9E4; --muted:#949C96;
  --accent:#8E9BFF; --accent-ink:#11143A; --accent-soft:#252A4D;
  --stage:#161A17; --figure:#D9CBB6; --outline:#0A0C0B; --mat:#4250C4; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#111412; --surface:#191D1A; --line:#2B312D; --ink:#E5E9E4; --muted:#949C96;
  --accent:#8E9BFF; --accent-ink:#11143A; --accent-soft:#252A4D;
  --stage:#161A17; --figure:#D9CBB6; --outline:#0A0C0B; --mat:#4250C4; color-scheme:dark}
html,body{height:100%}
body{background:var(--bg);color:var(--ink);font-family:var(--f-ui);font-size:15px;line-height:1.45;
  padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));padding-block:20px}
.app{max-width:1240px;margin:0 auto;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.25fr);gap:24px;align-items:start}
header{grid-column:1/-1;display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:8px 16px}
.back{display:inline-block;font-size:13px;font-weight:500;color:var(--muted);text-decoration:none;margin-bottom:4px}
.back:hover{color:var(--accent)}
.back:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
h1{font-size:26px;font-weight:700;letter-spacing:-0.02em;margin:0;text-wrap:balance}
header p{margin:0;color:var(--muted);max-width:60ch}
.col{display:flex;flex-direction:column;gap:24px;min-width:0}
h2{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:0.09em;color:var(--muted);margin:0}
.sec-head{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:10px}
.sec-head .tools{display:flex;gap:6px}
button{font:inherit;color:inherit;cursor:pointer}
.btn{border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:5px 12px;font-size:13px;font-weight:500}
.btn:hover{border-color:var(--muted)}
button:focus-visible,.pose:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* pose library */
.search{font:inherit;font-size:13.5px;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:5px 12px;width:min(200px,50%)}
.search:focus-visible{outline:2px solid var(--accent);outline-offset:1px}
.lib-group+.lib-group{margin-top:18px}
.lib-group h3{font-size:13px;font-weight:600;margin:0 0 8px;color:var(--ink)}
.lib-group h3 span{color:var(--muted);font-weight:400;font-variant-numeric:tabular-nums}
.library{display:grid;grid-template-columns:repeat(auto-fill,minmax(132px,1fr));gap:8px}
.pose{display:flex;flex-direction:column;gap:2px;text-align:left;background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:8px 10px 10px;position:relative}
.pose:hover{border-color:var(--accent)}
.pose canvas{width:100%;height:64px;display:block}
.pose .en{font-weight:600;font-size:13.5px;line-height:1.25}
.pose .sk{font-family:var(--f-sk);font-style:italic;font-size:12.5px;color:var(--muted);line-height:1.25}
.pose .side-tag{font-size:11px;color:var(--muted)}
.pose .plus{position:absolute;top:6px;right:8px;font-size:16px;color:var(--muted);line-height:1}
.pose:hover .plus{color:var(--accent)}

/* sequence */
.seq{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;border:1px solid var(--line);border-radius:10px;background:var(--surface);overflow:hidden}
.seq li{display:grid;grid-template-columns:28px 44px minmax(0,1fr) auto;align-items:center;gap:10px;padding:6px 8px 6px 10px;border-top:1px solid var(--line);cursor:pointer}
.seq li:first-child{border-top:0}
.seq li:hover{background:var(--bg)}
.seq li.active{background:var(--accent-soft)}
.seq li.active .num{color:var(--accent);font-weight:700}
.seq li.dragging{opacity:.4}
.seq li.over{box-shadow:inset 0 2px 0 var(--accent)}
.seq .num{font-variant-numeric:tabular-nums;color:var(--muted);font-size:13px;text-align:right}
.seq canvas{width:44px;height:30px;display:block}
.seq .names{min-width:0}
.seq .names .en{font-weight:600;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.seq .names .meta{font-size:12px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.seq .names .meta i{font-family:var(--f-sk)}
.seq .ctl{display:flex;gap:2px;align-items:center}
.hold-label{display:inline-flex;align-items:center;gap:3px;font-size:11px;color:var(--muted);margin-right:3px;white-space:nowrap}
.hold-label input{font:inherit;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:5px;width:48px;padding:3px;text-align:right;font-variant-numeric:tabular-nums}
.sidebtn{border:1px solid var(--line);background:var(--bg);border-radius:6px;min-width:28px;height:24px;font-size:12px;font-weight:700;color:var(--accent);margin-right:4px}
.sidebtn:hover{border-color:var(--accent)}
.icon{border:0;background:none;width:28px;height:28px;border-radius:6px;color:var(--muted);display:grid;place-items:center;font-size:15px}
.icon:hover{background:var(--line);color:var(--ink)}
.icon:disabled{opacity:.3;cursor:default;background:none}
.empty{padding:22px 16px;text-align:center;color:var(--muted);font-size:14px}
.hint{font-size:12.5px;color:var(--muted);margin:8px 2px 0}

/* stage */
.stage{position:sticky;top:calc(env(safe-area-inset-top,0px) + 16px);display:flex;flex-direction:column;gap:12px;min-width:0}
.viewport{position:relative;border-radius:14px;overflow:hidden;background:var(--stage);aspect-ratio:4/3;max-width:100%;touch-action:none;cursor:grab}
.viewport:active{cursor:grabbing}
.viewport canvas{display:block;width:100%;height:100%}
.cue{position:absolute;left:16px;top:14px;right:16px;display:flex;flex-direction:column;gap:1px;pointer-events:none}
.cue .breath{font-size:11.5px;font-weight:700;letter-spacing:0.12em;text-transform:uppercase;color:var(--accent)}
.cue .en{font-size:20px;font-weight:700;letter-spacing:-0.01em}
.cue .sk{font-family:var(--f-sk);font-style:italic;color:var(--muted);font-size:15px}
.drag-hint{position:absolute;right:12px;bottom:10px;font-size:11.5px;color:var(--muted);pointer-events:none}
.preview-status{position:absolute;inset:auto 18px 45%;margin:0;color:var(--muted);font-size:14px;text-align:center}
.transport{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.play{display:inline-flex;align-items:center;gap:8px;background:var(--accent);color:var(--accent-ink);border:0;border-radius:999px;padding:9px 20px 9px 16px;font-weight:700;font-size:15px}
.play svg{width:14px;height:14px;fill:currentColor}
.timeline{flex:1 1 220px;min-width:0;display:flex;flex-direction:column;gap:4px}
.ticks{display:flex;gap:2px;height:6px}
.ticks span{flex:1;border-radius:2px;background:var(--line)}
.ticks span.done{background:var(--accent);opacity:.45}
.ticks span.on{background:var(--accent)}
input[type=range]{width:100%;accent-color:var(--accent);margin:0}
.time{font-variant-numeric:tabular-nums;font-size:12.5px;color:var(--muted);display:flex;justify-content:space-between}
.opts{display:flex;flex-wrap:wrap;gap:8px 14px;align-items:center;font-size:13px;color:var(--muted)}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:999px;overflow:hidden;background:var(--surface)}
.seg button{border:0;background:none;padding:4px 11px;font-size:13px;color:var(--muted)}
.seg button[aria-pressed="true"]{background:var(--ink);color:var(--bg)}
label.chk{display:inline-flex;gap:6px;align-items:center;cursor:pointer}
label.chk input{accent-color:var(--accent)}

@media (max-width:820px){
  .app{grid-template-columns:minmax(0,1fr)}
  .stage{position:static;order:-1}
  header{order:-2}
  .viewport{aspect-ratio:1/1}
}


.motion-status{margin:0;font-size:12.5px;line-height:1.4;color:var(--muted)}
.motion-status:empty{display:none}
.play:disabled{opacity:.55;cursor:wait}

/* Whole-class planning below the rehearsal stage and editor */
.stage{grid-column:1;grid-row:2/4}
.col{grid-column:2;grid-row:3}
.class-plan{grid-column:2;grid-row:2;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:24px;min-width:0}
.class-plan h2{font-size:22px;letter-spacing:-.02em;text-transform:none;color:var(--ink)}
.class-plan h3{font-size:14px;margin:0 0 10px}
.class-plan .eyebrow{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);font-weight:700;margin:0 0 3px}
.class-plan .sec-head strong{font-variant-numeric:tabular-nums;font-size:18px;white-space:nowrap}
.plan-intro,.map-caption{color:var(--muted);font-size:13px;margin:0 0 16px}
.plan-controls,.plan-actions{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px}
.plan-controls label,.music-plan label{font-size:13px;color:var(--muted)}
.plan-controls input{width:56px;font:inherit;background:var(--bg);border:1px solid var(--line);border-radius:6px;color:var(--ink);padding:5px;font-variant-numeric:tabular-nums}
.plan-remaining{font-size:13px;color:var(--accent);margin:10px 0 14px}
.journey-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px;margin-top:24px}
.class-timeline{list-style:none;padding:0;margin:0;max-height:235px;overflow:auto;border:1px solid var(--line);border-radius:8px}
.class-scrub-label{display:block;color:var(--muted);font-size:12px;margin-bottom:4px}
#classScrub{margin:0 0 12px}
.class-timeline li+li{border-top:1px solid var(--line)}
.class-timeline button{border:0;background:transparent;color:var(--ink);padding:7px 10px;width:100%;text-align:left;font-size:12px;font-variant-numeric:tabular-nums}
.class-timeline li.current button{background:var(--accent-soft);color:var(--accent);font-weight:700}
.class-path{display:block;width:100%;height:auto;max-height:235px;border:1px solid var(--line);border-radius:8px}
.map-caption{margin:7px 0 0}
.music-plan{border-top:1px solid var(--line);margin-top:24px;padding-top:20px}
.music-plan p{font-size:13px;color:var(--muted)}
.music-plan a{color:var(--accent)}
.music-plan input{display:block;max-width:420px;width:100%;font:inherit;background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:8px;color:var(--ink);margin:6px 0 10px}
.music-plan iframe{border:0;border-radius:8px;max-width:420px;margin-top:10px}
@media(max-width:820px){.stage,.col,.class-plan{grid-column:auto;grid-row:auto}.journey-layout{grid-template-columns:1fr}.class-plan{padding:18px}.seq li{grid-template-columns:22px 32px minmax(0,1fr);gap:6px}.seq .ctl{grid-column:3;justify-content:flex-end}}