html,body{margin:0;min-width:0}.toolbar{z-index:5}.eyebrow{text-transform:uppercase;letter-spacing:.16em;font-size:10px;color:var(--muted);margin:0 0 16px}h1{font-size:39px;font-weight:500;line-height:1.12;letter-spacing:-1.6px;margin:0}.intro>p:last-child{font-size:13px;color:var(--muted);line-height:1.75;margin:20px 0 26px}.panel label{display:block;font-size:12px;margin:6px 0 10px}.panel select{width:100%;min-height:42px;padding:8px;border:1px solid var(--border);border-radius:6px;color:var(--text);background:var(--background);font:inherit;font-size:12px}.hint,.model-note{color:var(--muted);font-size:11px;line-height:1.65}.hint{margin:10px 0 16px}.model-note{font-size:10px;padding-top:16px;border-top:1px solid var(--border)}.primary{display:flex;justify-content:space-between;width:100%;background:var(--primary);color:var(--primary-ink);border-color:var(--primary);font-size:13px}.primary:hover{background:var(--foliage)}.primary:disabled{opacity:.65;cursor:default}#status{font-size:11px;line-height:1.6;margin:0;padding-top:12px;border-top:1px solid var(--border)}.observation{padding:28px 2px 8px}.step-number{font-size:9px;letter-spacing:.14em;color:var(--muted)}h2{font-size:18px;font-weight:500;line-height:1.4;letter-spacing:-.3px}.observation p{font-size:12px;line-height:1.7;color:var(--muted)}.scene-heading{display:flex;justify-content:space-between;align-items:center;padding:4px 0 14px;border-bottom:1px solid var(--border)}.scene-heading .eyebrow{margin:0}#elapsed{color:var(--muted);font-size:11px;font-variant-numeric:tabular-nums}.scene-label{position:absolute;inset:44% 0 auto;display:flex;flex-direction:column;align-items:center;gap:7px;font-size:9px;letter-spacing:.2em;color:var(--muted);pointer-events:none}.scene-label .road-length{font-size:26px;letter-spacing:-1px;color:var(--text);font-weight:400}.scene-label[hidden]{display:none}.scene-footer{display:flex;justify-content:space-between;gap:12px;font-size:10px;color:var(--muted);padding:10px 0 16px}.legend{display:flex;align-items:center;gap:7px}.slow-dot{width:5px;height:5px;border-radius:50%;background:var(--berry)}.speed-gradient{width:65px;height:5px;border-radius:4px;background:linear-gradient(to right,var(--berry),var(--sun-energy),var(--accent))}.readings{display:grid;grid-template-columns:repeat(3,1fr);border-block:1px solid var(--border);padding:18px 0;margin:0}.readings>div{padding:0 22px;border-left:1px solid var(--border)}.readings>div:first-child{padding-left:0;border:0}dt{font-size:10px;color:var(--muted)}dt span{font-size:9px}dd{font-size:30px;margin:7px 0 0;font-variant-numeric:tabular-nums}dd small{font-size:11px;color:var(--muted)}.history{padding-top:16px}.history-heading{display:flex;align-items:center;justify-content:space-between;gap:10px}.history h2{margin:0;font-size:14px}.history-heading>span{font-size:9px;color:var(--muted)}.history p{font-size:10px;color:var(--muted);margin:7px 0 12px;line-height:1.5}.chart-wrap{position:relative;padding-left:22px}.time-label{position:absolute;top:35%;left:0;writing-mode:vertical-rl;font-size:9px;color:var(--muted)}#history{width:100%;height:110px;display:block;border-radius:5px;background:var(--surface)}.chart-axis{display:flex;justify-content:space-between;padding:8px 0 0 22px;font-size:9px;color:var(--muted)}@media(max-width:760px){.toolbar{top:12px;left:12px;right:12px}.control{font-size:12px}}