:root{
  --ink:#0f1b2d; --ink2:#46586f; --line:#e3e9f2; --bg:#f4f7fb; --card:#ffffff;
  --sdap:#f59e0b; --pdcp:#2563eb; --rlc:#ef4444; --mac:#10b981; --phy:#8b5cf6; --rrc:#06b6d4;
  --grad:linear-gradient(120deg,#2563eb,#06b6d4 45%,#10b981);
  --shadow:0 18px 50px -24px rgba(20,40,80,.45);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{font-family:'Inter',system-ui,sans-serif;color:var(--ink);background:var(--bg);
  display:grid;grid-template-columns:300px 1fr;overflow:hidden}
svg text{font-family:'Inter',system-ui,sans-serif}

.side{height:100vh;overflow-y:auto;background:var(--card);border-right:1px solid var(--line);padding:18px 14px 50px}
.brand{display:flex;align-items:center;gap:10px;padding:4px 6px 14px;text-decoration:none;color:inherit}
.brand .dot{width:38px;height:38px;border-radius:11px;background:var(--grad);display:grid;place-items:center;color:#fff;font-weight:800;box-shadow:var(--shadow)}
.brand b{font-size:14px}.brand span{display:block;font-size:10.5px;color:var(--ink2);font-weight:600}
.side h4{font-size:10px;letter-spacing:1.3px;text-transform:uppercase;color:var(--ink2);margin:12px 8px 6px;font-weight:800}
.mod{border-radius:10px;margin:2px 0;overflow:hidden}
.mod>summary{list-style:none;cursor:pointer;padding:8px 10px;display:flex;gap:9px;align-items:center;font-weight:700;font-size:13px}
.mod>summary::-webkit-details-marker{display:none}
.mod .num{flex:0 0 22px;height:22px;border-radius:6px;background:#eef3fb;color:var(--pdcp);display:grid;place-items:center;font-size:11px;font-weight:800;font-family:'JetBrains Mono',monospace}
.mod[open]{background:#fbfdff;border:1px solid var(--line)}
.mod[open]>summary .num{background:var(--grad);color:#fff}
.mod:hover{background:#f7faff}
.tag-live{font-size:8.5px;font-weight:800;color:#fff;background:var(--mac);border-radius:5px;padding:2px 5px;margin-left:auto}
.tag-soon{font-size:8.5px;font-weight:800;color:var(--ink2);background:#eef1f6;border-radius:5px;padding:2px 5px;margin-left:auto}
.sub{padding:0 8px 8px 36px}
.sub a{display:block;font-size:12px;color:var(--ink2);text-decoration:none;padding:5px 0 5px 11px;font-weight:600;border-left:2px solid var(--line);cursor:pointer}
.sub a:hover{color:var(--pdcp)}
.sub a.on{color:var(--mac);border-left-color:var(--mac);font-weight:800}

main{height:100vh;padding:16px 22px 16px;display:flex;flex-direction:column;gap:11px}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.topbar h1{font-family:'Fraunces',serif;font-weight:700;font-size:24px;letter-spacing:-.4px}
.topbar .crumbs{font-size:12px;color:var(--ink2);font-weight:600}
.specpill{font-family:'JetBrains Mono',monospace;font-size:11.5px;font-weight:700;color:var(--phy);background:#f3eefe;border:1px solid #e6dbfb;padding:6px 11px;border-radius:9px}

.stage-wrap{flex:1;min-height:0;position:relative;border-radius:20px;overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);background:#fbfdff}
.stage{width:100%;height:100%;display:block}
.scene-tag{position:absolute;top:14px;left:16px;font-family:'JetBrains Mono',monospace;font-size:12px;font-weight:700;color:var(--ink2);background:#ffffffcc;backdrop-filter:blur(4px);border:1px solid var(--line);border-radius:8px;padding:5px 10px}
.grp-tag{position:absolute;top:14px;right:16px;font-size:11.5px;font-weight:800;letter-spacing:.4px;color:#fff;background:var(--grad);border-radius:8px;padding:6px 12px;box-shadow:var(--shadow)}
.cap-overlay{position:absolute;left:0;right:0;bottom:0;padding:54px 56px 20px;pointer-events:none;
  background:linear-gradient(to top,#ffffff 12%,#ffffffe6 42%,#ffffff00)}
.cap-overlay p{font-size:22px;line-height:1.34;font-weight:600;max-width:1360px;margin:0 auto;text-align:center;color:var(--ink)}
.cap-overlay.hide{display:none}
.cap-overlay p span{transition:color .12s ease,opacity .12s ease}
.cap-overlay p span.up{color:#9fadbf}
.cap-overlay p span.spoken{color:var(--ink)}
.cap-overlay p span.active{color:var(--mac);font-weight:800}

.bar{background:var(--card);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:11px 16px;display:flex;align-items:center;gap:13px}
.btn{border:none;background:#eef3fb;color:var(--ink);width:42px;height:42px;border-radius:11px;font-size:16px;cursor:pointer;display:grid;place-items:center;transition:.15s;font-weight:700}
.btn:hover{background:#dde8fb}
.btn.play{background:var(--grad);color:#fff;width:50px;height:50px;font-size:19px}
.track{flex:1;display:flex;flex-direction:column;gap:5px}
input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:8px;border-radius:6px;background:var(--line);outline:none;cursor:pointer}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:19px;height:19px;border-radius:50%;background:var(--pdcp);box-shadow:0 2px 8px #2563eb66;border:3px solid #fff;cursor:pointer}
input[type=range]::-moz-range-thumb{width:17px;height:17px;border-radius:50%;background:var(--pdcp);border:3px solid #fff;cursor:pointer}
.tline{display:flex;justify-content:space-between;font-size:11px;color:var(--ink2);font-weight:700;font-family:'JetBrains Mono',monospace}
.ccbtn{border:1px solid var(--line);background:#fff;border-radius:9px;padding:8px 11px;font-size:11.5px;font-weight:800;cursor:pointer;color:var(--ink2)}
.ccbtn.on{color:var(--mac);border-color:var(--mac);background:#ecfdf5}
@media(max-width:980px){body{grid-template-columns:1fr;overflow:auto}.side{display:none}main{height:auto}.stage-wrap{aspect-ratio:16/9;flex:none}}