:root { color-scheme:dark; --bg:#111111; --panel:#171918; --ink:#f1f3ed; --muted:#a0aaa3; --line:#303631; --accent:#d9edbd; }
    * { box-sizing:border-box; }
    body { margin:0; background:var(--bg); color:var(--ink); font:15px/1.5 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; }
    button,a,canvas { -webkit-tap-highlight-color:transparent; }
    button:focus-visible,a:focus-visible,canvas:focus-visible { outline:2px solid var(--accent); outline-offset:5px; }
    a { color:inherit; text-decoration:none; }
    .app { display:grid; grid-template-columns:320px minmax(0,1fr); min-height:680px; height:100svh; }
    .sidebar { position:relative; z-index:1; display:flex; flex-direction:column; padding:38px 30px 26px; background:var(--panel); border-right:1px solid var(--line); }
    .brand { display:flex; align-items:center; gap:11px; width:fit-content; }
    .brand-mark { display:grid; place-items:center; width:37px; height:37px; border:1px solid #6e846e; border-radius:50%; font:italic 25px Georgia,serif; color:var(--accent); }
    .brand-name { font-size:20px; font-weight:650; letter-spacing:-.7px; }
    .brand-name small { display:block; margin-top:-5px; font-size:9px; font-weight:500; letter-spacing:3.6px; color:var(--muted); }
    .intro { margin:70px 0 30px; }
    .eyebrow { margin:0 0 14px; color:var(--accent); font-size:10px; letter-spacing:2px; font-weight:650; text-transform:uppercase; }
    h1 { margin:0; font-size:clamp(28px,2.9vw,40px); line-height:1.15; font-weight:450; letter-spacing:-1.6px; }
    .intro p:last-child { margin:17px 0 0; color:var(--muted); font-size:13px; line-height:1.7; }
    .choices { display:grid; gap:11px; }
    .choice { display:flex; align-items:center; gap:15px; min-height:80px; padding:15px; text-align:left; border:1px solid var(--line); border-radius:12px; background:transparent; color:var(--ink); cursor:pointer; font:inherit; transition:background .2s,color .2s,border-color .2s,transform .2s; }
    .choice:hover { border-color:#72816f; transform:translateX(3px); }
    .choice[aria-pressed="true"] { background:var(--accent); border-color:var(--accent); color:#1c291c; }
    .choice-number { font-size:10px; opacity:.55; }
    .choice-name { flex:1; font-size:15px; font-weight:600; letter-spacing:-.2px; }
    .choice-name small { display:block; font-size:10px; font-weight:400; opacity:.68; margin-top:3px; letter-spacing:0; }
    .choice-volume { font-size:22px; font-weight:450; letter-spacing:-1px; white-space:nowrap; }
    .choice-volume small { font-size:11px; letter-spacing:0; }
    .details { margin-top:30px; padding-top:22px; border-top:1px solid var(--line); }
    .details dt { color:var(--muted); font-size:10px; letter-spacing:1px; text-transform:uppercase; }
    .details dd { margin:6px 0 0; font-size:14px; font-variant-numeric:tabular-nums; }
    .details p { font-size:10px; color:var(--muted); line-height:1.65; }
    .sidebar-footer { margin-top:auto; padding-top:34px; color:var(--muted); font-size:10px; letter-spacing:.7px; }
    .sidebar { overflow-y:auto; }
    .decor-panel { margin-top:18px; padding-top:16px; border-top:1px solid var(--line); }
    .decor-panel h2 { margin:0; font-size:15px; font-weight:600; }
    .decor-panel p { color:var(--muted); font-size:11px; margin:7px 0; }
    .decor-choices,.decor-actions { display:flex; flex-wrap:wrap; gap:6px; }
    .decor-panel button { padding:8px 10px; min-height:38px; color:var(--ink); background:#242b25; border:1px solid #465248; border-radius:8px; font:inherit; font-size:12px; cursor:pointer; }
    .decor-panel button:hover { border-color:var(--accent); }
    .stage { position:relative; min-width:0; overflow:hidden; isolation:isolate; }
    .stage-heading { position:absolute; z-index:1; top:39px; left:40px; right:35px; display:flex; justify-content:space-between; align-items:flex-start; gap:20px; pointer-events:none; }
    .stage-heading p { margin:0; font-size:11px; color:var(--muted); letter-spacing:1.5px; text-transform:uppercase; }
    .badge { display:flex; align-items:center; gap:7px; white-space:nowrap; border:1px solid var(--line); border-radius:30px; padding:7px 11px; font-size:9px; color:#c2d1c5; letter-spacing:1.1px; }
    .badge::before { content:""; width:5px; height:5px; background:#a7d7bc; border-radius:50%; }
    #viewport { position:absolute; inset:0; }
    canvas { display:block; width:100%; height:100%; touch-action:none; cursor:grab; }
    canvas:active { cursor:grabbing; }
    .stage-footer { position:absolute; z-index:1; left:40px; right:35px; bottom:31px; display:flex; justify-content:space-between; align-items:flex-end; gap:20px; pointer-events:none; }
    .volume-readout { font-size:65px; font-weight:300; line-height:1; letter-spacing:-4px; font-variant-numeric:tabular-nums; }
    .volume-readout span { margin-left:6px; font-size:19px; color:var(--muted); letter-spacing:0; }
    .volume-caption { margin:9px 0 0; color:var(--muted); font-size:10px; letter-spacing:1.4px; text-transform:uppercase; }
    .hint { max-width:210px; margin:0 0 3px; color:var(--muted); font-size:11px; line-height:1.8; text-align:right; }
    .status { position:absolute; z-index:2; top:45%; left:10%; right:10%; margin:0; padding:18px; color:#d8e8d8; background:#171918ee; border:1px solid var(--line); border-radius:12px; text-align:center; }
    .sr-only { position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip-path:inset(50%); white-space:nowrap; border:0; }
    @media(max-width:800px) {
      .app { grid-template-columns:260px minmax(0,1fr); }
      .sidebar { padding:28px 22px; } .intro { margin-top:55px; }
      .stage-heading { left:24px; right:24px; } .stage-heading p { max-width:140px; }
      .stage-footer { left:24px; right:24px; } .hint { max-width:150px; font-size:10px; }
    }
    @media(max-width:620px) {
      .app { display:flex; flex-direction:column; height:auto; min-height:100svh; }
      .sidebar { padding:23px 20px 17px; border-right:0; border-bottom:1px solid var(--line); }
      .brand-mark { width:30px; height:30px; font-size:21px; } .brand-name { font-size:17px; }
      .intro { margin:26px 0 20px; } .eyebrow { margin-bottom:8px; font-size:9px; }
      h1 { font-size:30px; letter-spacing:-1.2px; } h1 br { display:none; }
      .intro p:last-child { margin-top:9px; font-size:12px; }
      .choices { grid-template-columns:repeat(3,minmax(0,1fr)); gap:8px; }
      .choice { display:block; min-height:86px; padding:12px 9px; border-radius:10px; }
      .choice-number,.choice-name small { display:none; } .choice-name { display:block; font-size:12px; }
      .choice-volume { display:block; margin-top:4px; font-size:21px; } .choice:hover { transform:none; }
      .details { display:flex; gap:14px; align-items:center; margin-top:16px; padding-top:14px; }
      .details dl { flex:none; margin:0; } .details p { margin:0; font-size:9px; }
      .sidebar-footer { display:none; }
      .stage { flex:1; min-height:440px; height:58svh; }
      .stage-heading { top:20px; left:20px; right:20px; } .stage-heading p { font-size:9px; }
      .stage-footer { bottom:22px; left:20px; right:20px; } .volume-readout { font-size:47px; letter-spacing:-2px; }
      .hint { max-width:170px; } .volume-caption { font-size:8px; }
    }
    @media(prefers-reduced-motion:reduce) { *,*::before,*::after { transition:none!important; } }