.demo-body{overflow:hidden}.layout{height:100vh;grid-template-columns:minmax(0,1fr) 336px;height:100dvh;display:grid}.stage{background:#0b0d11;min-width:0;position:relative}.stage__canvas{touch-action:none;cursor:default;width:100%;height:100%;display:block}.stage__canvas.is-grabbable{cursor:grab}.stage__back{color:var(--ink-dim);border:1px solid var(--line);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);background:#0d0f13b3;border-radius:999px;padding:.3rem .8rem;font-size:.85rem;text-decoration:none;position:absolute;top:1rem;left:1rem}.stage__back:hover{color:var(--ink)}.stage__hint{text-align:center;max-width:min(680px,92%);color:var(--ink-faint);pointer-events:none;background:#0b0d11b8;border-radius:999px;margin:0;padding:.3rem .8rem;font-size:.74rem;position:absolute;bottom:.5rem;left:50%;transform:translate(-50%)}.message{border:1px solid #5a4030;border-left:3px solid 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b{color:var(--ink);word-break:break-all;font-weight:500}.presets{grid-template-columns:1fr 1fr;gap:.45rem;display:grid}.preset{border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--surface-2);color:var(--ink-dim);font:inherit;cursor:pointer;padding:.45rem .4rem;font-size:.82rem;transition:border-color .14s,color .14s}.preset:hover{color:var(--ink);border-color:#4a5468}.preset.is-active{border-color:var(--accent);color:var(--accent-soft);background:#e8b06a1a}@media (max-width:860px){.demo-body{overflow:auto}.layout{grid-template-columns:1fr;height:auto}.stage{height:62vh}.panel{border-left:0;border-top:1px solid var(--line)}}