:root{--bg: #0f1420;--panel: #171e2e;--panel-2: #1c2438;--border: #2a3550;--text: #e6ebf5;--muted: #8b97b0;--accent: #4cc2ff;--accent-2: #9d7bff;--good: #4ade80;--warn: #fbbf24;--bad: #f87171;--mono: "SF Mono", "Cascadia Code", Consolas, "Liberation Mono", Menlo, monospace}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.5 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}#app{max-width:1280px;margin:0 auto;padding:16px 20px 8px}.top{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:12px}.brand h1{margin:0;font-size:26px;letter-spacing:.2px}.tagline{margin:2px 0 0;color:var(--muted)}.toolbar{display:flex;align-items:center;gap:10px}.picker{color:var(--muted);font-size:13px}select,button{background:var(--panel-2);border:1px solid var(--border);color:var(--text);border-radius:8px;padding:7px 12px;font-size:14px;cursor:pointer}select{margin-left:6px}button:hover:not(:disabled){border-color:var(--accent)}button:disabled{opacity:.45;cursor:default}.blurb{margin:10px 0 0;color:var(--accent);font-size:14px}.grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:16px;margin-top:14px}@media(max-width:900px){.grid{grid-template-columns:minmax(0,1fr)}}.pane{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:14px;display:flex;flex-direction:column;min-height:0}.pane-head{display:flex;align-items:baseline;justify-content:space-between;gap:10px;margin-bottom:8px}.pane-head h2{margin:0;font-size:15px;text-transform:uppercase;letter-spacing:.8px;color:var(--muted)}.hint{font-size:12px;color:var(--muted)}.status{font-size:12px;color:var(--good);font-family:var(--mono)}#editor{width:100%;min-height:200px;resize:vertical;background:#0b101b;color:var(--text);border:1px solid var(--border);border-radius:8px;padding:12px;font-family:var(--mono);font-size:13.5px;line-height:1.55;tab-size:2;margin-bottom:14px}#editor:focus{outline:1px solid var(--accent)}.witness{margin:0;background:#0b101b;border:1px solid var(--border);border-radius:8px;padding:12px;font-family:var(--mono);font-size:13.5px;line-height:1.55;tab-size:2;overflow:auto;max-height:380px;white-space:pre;flex:1}.witness .tok:hover{background:#4cc2ff2e;border-radius:3px;cursor:pointer}.witness .current{background:#9d7bff52;outline:1px solid var(--accent-2);border-radius:3px}.witness .squiggle{text-decoration:underline wavy var(--bad);text-underline-offset:3px}.controls{display:flex;align-items:center;gap:8px;margin-bottom:10px}.controls input[type=range]{flex:1;accent-color:var(--accent)}.counter{font-family:var(--mono);font-size:12px;color:var(--muted);min-width:64px;text-align:right}.filter{font-size:13px;color:var(--muted);user-select:none}.card{background:var(--panel-2);border:1px solid var(--accent-2);border-radius:10px;padding:12px 14px;margin-bottom:10px}.narration{margin:8px 0 0;font-size:15px}.details{margin:8px 0 0;padding-left:18px;font-family:var(--mono);font-size:12.5px;color:var(--muted)}.details li{margin:2px 0;overflow-wrap:anywhere}.steps{list-style:none;margin:0;padding:0;overflow:auto;max-height:420px;flex:1}.step{display:flex;align-items:center;gap:8px;padding:6px 8px;border-radius:8px;cursor:pointer;border:1px solid transparent}.step:hover{background:var(--panel-2)}.step.active{background:var(--panel-2);border-color:var(--accent-2)}.step-snippet{font-family:var(--mono);font-size:12.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:1}.step-type{font-family:var(--mono);font-size:12px;color:var(--accent);max-width:40%;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.badge{font-size:10.5px;text-transform:uppercase;letter-spacing:.6px;border-radius:999px;padding:2px 8px;border:1px solid var(--border);color:var(--muted);white-space:nowrap}.kind-call{color:var(--accent);border-color:var(--accent)}.kind-narrow,.kind-widen{color:var(--accent-2);border-color:var(--accent-2)}.kind-var-infer,.kind-return-infer,.kind-param{color:var(--good);border-color:var(--good)}.kind-var-declared{color:var(--warn);border-color:var(--warn)}.kind-error{color:var(--bad);border-color:var(--bad)}.tooltip{position:fixed;z-index:10;background:#060a12;border:1px solid var(--accent);color:var(--text);border-radius:6px;padding:5px 9px;font-family:var(--mono);font-size:12.5px;max-width:480px;overflow-wrap:anywhere;pointer-events:none}.foot{margin-top:14px;color:var(--muted);font-size:13px;text-align:center}.foot a{color:var(--accent)}