@font-face { font-family: Outfit; font-weight: 300; src: url(/lab/vendor/fonts/outfit/outfit-latin-300-normal.woff2) format('woff2'); font-display: block; }
@font-face { font-family: Outfit; font-weight: 400; src: url(/lab/vendor/fonts/outfit/outfit-latin-400-normal.woff2) format('woff2'); font-display: block; }
@font-face { font-family: Outfit; font-weight: 500; src: url(/lab/vendor/fonts/outfit/outfit-latin-500-normal.woff2) format('woff2'); font-display: block; }
@font-face { font-family: Outfit; font-weight: 600; src: url(/lab/vendor/fonts/outfit/outfit-latin-600-normal.woff2) format('woff2'); font-display: block; }
@font-face { font-family: Outfit; font-weight: 700; src: url(/lab/vendor/fonts/outfit/outfit-latin-700-normal.woff2) format('woff2'); font-display: block; }
@font-face { font-family: Outfit; font-weight: 800; src: url(/lab/vendor/fonts/outfit/outfit-latin-800-normal.woff2) format('woff2'); font-display: block; }
@font-face { font-family: "DM Mono"; font-weight: 400; src: url(/lab/vendor/fonts/dm-mono/dm-mono-latin-400-normal.woff2) format('woff2'); font-display: block; }
@font-face { font-family: "DM Mono"; font-weight: 500; src: url(/lab/vendor/fonts/dm-mono/dm-mono-latin-500-normal.woff2) format('woff2'); font-display: block; }

:root {
  --ink: #e9f0f7; --ink-2: #a9b8c8; --ink-3: #6f8196;
  --panel: rgba(10, 20, 34, 0.72); --panel-2: rgba(16, 30, 48, 0.78); --line: rgba(140, 180, 220, 0.16);
  --cyan: #4fd6ff; --amber: #ffa640; --warm: #ffb65c;
  --sans: Outfit, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --mono: "DM Mono", ui-monospace, Menlo, monospace;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; overflow: hidden; background: #0b1119; color: var(--ink); font-family: var(--sans); -webkit-font-smoothing: antialiased; }
#stage { position: fixed; inset: 0; }
#stage canvas { display: block; width: 100%; height: 100%; touch-action: none; }
button { font: inherit; color: inherit; }

#ui { position: fixed; inset: 0; pointer-events: none; }
#ui.hidden > *:not(#labels) { opacity: 0; visibility: hidden; }
#ui.hidden #labels { opacity: 0; }
#ui > * { transition: opacity .35s ease, visibility .35s; }

/* ---------- intro (top-left) */
#intro { position: absolute; left: 24px; top: 22px; width: 316px; pointer-events: auto; }
.kicker { font: 600 10.5px/1 var(--sans); letter-spacing: .16em; color: var(--cyan); text-transform: uppercase; opacity: .9; }
h1 { margin: 10px 0 8px; font: 700 30px/1.14 var(--sans); letter-spacing: .01em; text-shadow: 0 2px 20px rgba(0,0,0,.45); }
h1 span { display: block; }
h1 .accent { color: var(--warm); }
.hook { margin: 0 0 12px; font: 400 13.5px/1.6 var(--sans); color: var(--ink-2); text-shadow: 0 1px 10px rgba(0,0,0,.6); }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 7px; margin-bottom: 8px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 9px 10px 8px; backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); }
.card .lbl { font: 500 11px/1.2 var(--sans); color: var(--ink-3); letter-spacing: .02em; }
.card .val { margin-top: 5px; display: flex; align-items: baseline; gap: 4px; }
.card .val b { font: 500 22px/1 var(--mono); color: var(--ink); font-variant-numeric: tabular-nums; }
.card .val i { font: 400 11px/1 var(--sans); font-style: normal; color: var(--ink-3); }
.card.tall .val b { color: var(--amber); }
.card.short .val b { color: var(--cyan); }
.narration { background: var(--panel-2); border: 1px solid var(--line); border-left: 3px solid var(--warm); border-radius: 12px; padding: 12px 14px; font: 400 13.5px/1.7 var(--sans); color: #d3dde8; backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); min-height: 0; transition: opacity .25s; }
.narration b { color: #fff; font-weight: 600; }
.narration .tag { display: inline-block; font: 500 10.5px/1 var(--mono); color: var(--cyan); border: 1px solid rgba(79,214,255,.35); border-radius: 99px; padding: 3px 7px; margin-right: 6px; vertical-align: 1px; }

/* ---------- panel (top-right) */
#panel { position: absolute; right: 20px; top: 20px; width: 280px; pointer-events: auto; background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 12px; backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); }
.grp { margin-top: 10px; border-top: 1px solid var(--line); padding-top: 8px; }
.grp > summary { list-style: none; display: flex; align-items: baseline; justify-content: flex-start; gap: 8px; cursor: pointer; font: 500 12.5px/1 var(--sans); color: var(--ink-2); padding: 2px 0 8px; user-select: none; }
.grp > summary::-webkit-details-marker { display: none; }
.grp > summary::before { content: ''; width: 5px; height: 5px; border-right: 1.5px solid var(--ink-3); border-bottom: 1.5px solid var(--ink-3); transform: rotate(45deg); margin: 0 2px 2px 0; order: 0; flex: none; }
.grp:not([open]) > summary::before { transform: rotate(-45deg); }
.grp > summary output { margin-left: auto; font: 500 13px/1 var(--mono); color: var(--ink); }
.row.sub { margin-top: 6px; align-items: center; justify-content: space-between; }
.mini > summary { list-style: none; cursor: pointer; font: 500 11.5px/1 var(--sans); color: var(--ink-3); border: 1px solid var(--line); border-radius: 99px; padding: 6px 10px; }
.mini > summary::-webkit-details-marker { display: none; }
.mini > summary output { font: 500 11.5px/1 var(--mono); color: var(--ink-2); }
.mini[open] > summary { border-color: rgba(79,214,255,.5); color: #cff3ff; }
.amp-row { margin-top: 6px; }
.grp:has(#amp-grp:not([open])) .amp-row { display: none; }
.drawer-handle { display: none; }
.row { display: flex; flex-wrap: wrap; gap: 6px; }
.presets button { flex: 1 1 auto; background: rgba(255,255,255,.04); border: 1px solid var(--line); border-radius: 99px; padding: 6px 10px; font-size: 12px; color: var(--ink-2); cursor: pointer; transition: all .2s; }
.presets button:hover { border-color: rgba(255,182,92,.6); color: #fff; }
.presets button.on { background: rgba(255,166,64,.16); border-color: rgba(255,166,64,.7); color: #ffd8a8; }
.ctl { margin-top: 14px; }
.ctl-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 7px; }
.ctl-head label { font: 500 12.5px/1 var(--sans); color: var(--ink-2); }
.ctl-head output { font: 500 13px/1 var(--mono); color: var(--ink); }
input[type=range] { -webkit-appearance: none; appearance: none; width: 100%; height: 22px; background: transparent; cursor: pointer; margin: 0; }
input[type=range]::-webkit-slider-runnable-track { height: 4px; border-radius: 4px; background: linear-gradient(90deg, rgba(79,214,255,.55), rgba(255,166,64,.55)); }
input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; width: 18px; height: 18px; margin-top: -7px; border-radius: 50%; background: #f5f8fb; border: 3px solid var(--warm); box-shadow: 0 0 0 4px rgba(255,166,64,.18), 0 2px 8px rgba(0,0,0,.4); }
input[type=range]::-moz-range-track { height: 4px; border-radius: 4px; background: linear-gradient(90deg, rgba(79,214,255,.55), rgba(255,166,64,.55)); }
input[type=range]::-moz-range-thumb { width: 14px; height: 14px; border-radius: 50%; background: #f5f8fb; border: 3px solid var(--warm); }
.slider-wrap { position: relative; }
.ticks { position: relative; height: 16px; margin: 2px 9px 0; }
.ticks span { position: absolute; transform: translateX(-50%); font: 400 10px/1 var(--mono); color: var(--ink-3); }
.ticks span.res { color: var(--warm); }
.ticks span.res::before { content: ''; position: absolute; left: 50%; top: -8px; width: 1px; height: 5px; background: var(--warm); }
.chip { background: rgba(255,255,255,.05); border: 1px solid var(--line); border-radius: 99px; padding: 6px 12px; font-size: 12px; color: var(--ink-2); cursor: pointer; transition: all .2s; }
.chip:hover { color: #fff; border-color: rgba(79,214,255,.5); }
.chip.on { background: rgba(79,214,255,.14); border-color: rgba(79,214,255,.7); color: #cff3ff; }
.chip.round { width: 30px; height: 30px; padding: 0; border-radius: 50%; font: 600 14px/1 var(--sans); }
.seg { display: flex; background: rgba(0,0,0,.25); border: 1px solid var(--line); border-radius: 10px; padding: 3px; gap: 3px; }
.seg button { flex: 1; background: transparent; border: 0; border-radius: 7px; padding: 7px 4px; font-size: 12.5px; color: var(--ink-2); cursor: pointer; transition: all .2s; }
.seg button:hover { color: #fff; }
.seg button.on { background: rgba(255,255,255,.1); color: #fff; box-shadow: inset 0 0 0 1px rgba(255,255,255,.12); }
#seg-mode button.on[data-v=on] { background: rgba(79,214,255,.18); color: #d8f6ff; }
#seg-mode button.on[data-v=detuned] { background: rgba(255,120,80,.18); color: #ffd9cc; }
.tools { margin-top: 10px; justify-content: space-between; align-items: center; }

.hide-btn { position: absolute; right: 22px; bottom: 20px; pointer-events: auto; background: var(--panel); border: 1px solid var(--line); border-radius: 99px; padding: 7px 14px; font-size: 12px; color: var(--ink-2); cursor: pointer; backdrop-filter: blur(8px); }
#ui.hidden .hide-btn { opacity: .35; visibility: visible; }

/* ---------- labels */
#labels { position: absolute; inset: 0; pointer-events: none; transition: opacity .3s; }
#leaders { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.lab { position: absolute; left: 0; top: 0; white-space: nowrap; transform: translate(-50%, -50%); background: rgba(9, 18, 30, .78); border: 1px solid rgba(160,200,235,.28); border-radius: 99px; padding: 5px 11px 5px 9px; font: 500 12px/1 var(--sans); color: #e6eef6; display: flex; align-items: center; gap: 7px; backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); transition: opacity .25s; }
.lab::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 8px var(--cyan); }
.lab.amber::before { background: var(--amber); box-shadow: 0 0 8px var(--amber); }
.lab.white::before { background: #dfe8f0; box-shadow: none; }
.lab .num { font: 500 12px/1 var(--mono); color: #fff; }
.lab .drag { font: 600 10px/1 var(--sans); color: #1b1206; background: var(--warm); border-radius: 99px; padding: 3px 6px; margin-left: 2px; }
.lab .dim { color: var(--ink-3); font-weight: 400; }
.lab.clickable { pointer-events: auto; cursor: pointer; }

/* ---------- help */
.help { position: absolute; inset: 0; z-index: 20; display: flex; align-items: center; justify-content: center; background: rgba(4,8,14,.55); pointer-events: auto; }
.help[hidden] { display: none; }
.help-card { position: relative; width: min(640px, calc(100% - 32px)); max-height: calc(100% - 48px); overflow: auto; background: #0e1a2a; border: 1px solid var(--line); border-radius: 18px; padding: 22px 26px; box-shadow: 0 30px 80px rgba(0,0,0,.5); }
.help-card h2 { font: 600 16px/1.3 var(--sans); margin: 4px 0 10px; color: var(--warm); }
.help-card ul { margin: 0 0 16px; padding-left: 18px; }
.help-card li { font: 400 13.5px/1.7 var(--sans); color: #cdd8e4; margin-bottom: 4px; }
.help-card kbd { font: 500 12px var(--mono); border: 1px solid var(--line); border-radius: 4px; padding: 1px 5px; }
.help-card .close { position: absolute; right: 14px; top: 12px; background: none; border: 0; font-size: 22px; color: var(--ink-2); cursor: pointer; }

#nogl { position: fixed; inset: 0; display: flex; align-items: center; justify-content: center; background: #0b1119; padding: 24px; }
#nogl[hidden] { display: none; }
#nogl div { max-width: 420px; }
#nogl h2 { font: 600 20px var(--sans); color: var(--warm); }
#nogl p { font: 400 14px/1.7 var(--sans); color: var(--ink-2); }

/* ---------- mobile */
@media (max-width: 699px) {
  #intro { left: 14px; right: 14px; top: 12px; width: auto; }
  .kicker { font-size: 9.5px; }
  h1 { font-size: 21px; margin: 6px 0 8px; display: flex; gap: 8px; flex-wrap: wrap; }
  h1 span { display: inline; }
  .hook { display: none; }
  .cards { gap: 6px; margin-bottom: 7px; }
  .card { padding: 6px 8px; border-radius: 10px; }
  .card .lbl { font-size: 10px; }
  .card .val b { font-size: 17px; }
  .narration { font-size: 12px; line-height: 1.6; padding: 8px 10px; min-height: 0; }
  #panel { left: 0; right: 0; top: auto; bottom: 0; width: auto; border-radius: 18px 18px 0 0; padding: 0 14px calc(10px + env(safe-area-inset-bottom)); transform: translateY(calc(100% - 52px)); transition: transform .35s cubic-bezier(.2,.8,.2,1); }
  #panel.open { transform: translateY(0); }
  .drawer-handle { display: flex; align-items: center; justify-content: center; gap: 8px; width: 100%; height: 52px; background: none; border: 0; font: 600 13px var(--sans); color: var(--ink-2); cursor: pointer; }
  .drawer-handle span { width: 34px; height: 4px; border-radius: 4px; background: rgba(255,255,255,.3); }
  .panel-body { max-height: 56vh; overflow: auto; padding-bottom: 6px; }
  .hide-btn { display: none; }
  .lab { font-size: 10.5px; padding: 4px 8px 4px 7px; }
  .lab .num { font-size: 10.5px; }
}