:root{--bg: #1a1816;--surface: #24211e;--surface-2: #2e2a26;--border: #3a3531;--text: #f3ede4;--text-muted: #a89f93;--bread: #e0a458;--bread-ink: #2b1d08;--key: #e8735a;--key-ink: #2e1109;--slate: #6f7c8a;--slate-ink: #0f1419;--radius: 14px;--shadow: 0 20px 50px rgba(0, 0, 0, .45);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5;color-scheme:dark;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(60% 50% at 50% 0%,rgba(224,164,88,.08),transparent 70%),var(--bg)}button{font:inherit}.app{max-width:720px;margin:0 auto;padding:48px 16px 64px}.header{text-align:center;margin-bottom:28px}.header h1{margin:0 0 6px;font-size:clamp(1.75rem,4vw,2.5rem);font-weight:700;letter-spacing:-.02em}.header p{margin:0;color:var(--text-muted)}.detector{display:flex;flex-direction:column;gap:16px}.stage{position:relative;aspect-ratio:4 / 3;border-radius:var(--radius);overflow:hidden;background:#000;border:1px solid var(--border);box-shadow:var(--shadow)}.stage-video{width:100%;height:100%;object-fit:cover;display:block}.status{position:absolute;left:12px;bottom:12px;padding:6px 12px;border-radius:999px;background:#1a1816bf;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);color:var(--text);font-size:.85rem;font-variant-numeric:tabular-nums}.callout{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;background:#1a18168c;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);animation:pop .25s cubic-bezier(.2,.9,.3,1.2)}.callout img{max-width:55%;max-height:60%;border-radius:12px;border:3px solid var(--bread)}.callout p{margin:0;padding:8px 16px;border-radius:999px;background:var(--bread);color:var(--bread-ink);font-weight:700}@keyframes pop{0%{opacity:0;transform:scale(.96)}to{opacity:1;transform:scale(1)}}.controls{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.train{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border:none;border-radius:12px;font-weight:600;cursor:pointer;transition:transform .08s ease,filter .15s ease}.train:hover:not(:disabled){filter:brightness(1.08)}.train:active:not(:disabled){transform:scale(.97)}.train:disabled{opacity:.4;cursor:not-allowed}.train-key{background:var(--key);color:var(--key-ink)}.train-bread{background:var(--bread);color:var(--bread-ink)}.train-background{background:var(--slate);color:var(--slate-ink)}.count{min-width:1.75em;padding:2px 8px;border-radius:999px;background:#0003;font-size:.8rem;font-variant-numeric:tabular-nums;text-align:center}@media(max-width:480px){.controls{grid-template-columns:1fr}}