/* Vision Lab: a camera viewfinder. Black stage, focus-yellow HUD, class-coded boxes. */
:root {
  color-scheme: dark;
  --bg: #070707;
  --surface: #0e0e0f;
  --surface-2: #151517;
  --line: #222225;
  --line-strong: #323237;
  --text: #f1f1ee;
  --muted: #8d8d94;
  --dim: #5c5c63;
  --accent: #ffd60a;
  --rec: #ff453a;
  --person: #ffd60a;
  --vehicle: #ff6a3d;
  --animal: #c38bff;
  --other: #8cf56b;
  --sans: "Inter Tight", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.55 var(--sans); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; color: inherit; }
button { cursor: pointer; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
[hidden] { display: none !important; }

/* Top bar */
.topbar { height: 60px; display: flex; align-items: center; gap: 24px; padding: 0 clamp(16px, 3vw, 40px); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 11px; font-weight: 600; font-size: 16px; letter-spacing: -.01em; }
.brand-mark { width: 22px; height: 22px; }
.brand-mark path { fill: none; stroke: var(--accent); stroke-width: 2.2; }
.brand-mark circle { fill: var(--accent); }
.topbar-meta { font: 11px var(--mono); color: var(--dim); letter-spacing: .04em; }
.topbar nav { margin-left: auto; display: flex; gap: 22px; font-size: 13px; color: var(--muted); }
.topbar nav a:hover { color: var(--accent); }

main { width: min(1320px, 100% - 32px); margin: 0 auto; padding: 30px 0 24px; }

/* Intro */
.intro { display: flex; align-items: end; justify-content: space-between; gap: 40px; margin-bottom: 22px; }
.intro h1 { margin: 0; font-size: clamp(32px, 3.8vw, 50px); line-height: .98; letter-spacing: -.045em; font-weight: 600; }
.intro p { max-width: 400px; margin: 0; color: var(--muted); font-size: 15px; }

/* Viewfinder frame */
.viewfinder { border: 1px solid var(--line-strong); border-radius: 14px; background: var(--surface); overflow: hidden; }
.sourcebar { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 10px; border-bottom: 1px solid var(--line); }
.sources { display: flex; gap: 4px; padding: 3px; background: #000; border: 1px solid var(--line); border-radius: 10px; }
.source { display: flex; align-items: center; gap: 8px; padding: 8px 14px; border: 0; border-radius: 7px; background: transparent; color: var(--muted); font-size: 13px; font-weight: 500; transition: background .15s, color .15s; }
.source span { font: 10px var(--mono); color: var(--dim); }
.source:hover { color: var(--text); background: var(--surface-2); }
.source.is-active { background: var(--accent); color: #111; }
.source.is-active span { color: #4d4000; }
.source:disabled { cursor: wait; opacity: .6; }
.status { margin: 0 6px 0 0; font: 12px var(--mono); color: var(--muted); text-align: right; }
.status.error { color: #ff8a80; }

.stage { position: relative; width: 100%; aspect-ratio: 16 / 9; max-height: max(340px, calc(100vh - 330px)); min-height: 260px; background: #000; display: grid; place-items: center; overflow: hidden; }
.stage video, .stage canvas { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; }
.stage.is-dragging .dropzone { opacity: 1; }
/* Webcam: a compact, mirror-sized preview instead of a stretched full-stage feed. */
.stage.is-camera canvas { position: relative; inset: auto; width: auto; height: auto; max-width: min(560px, 88%); max-height: 82%; border-radius: 12px; box-shadow: 0 0 0 1px var(--line-strong), 0 24px 60px rgba(0, 0, 0, .55); }

.hud { position: absolute; inset: 0; pointer-events: none; font: 500 11px var(--mono); letter-spacing: .08em; color: rgba(255, 255, 255, .78); text-shadow: 0 1px 2px rgba(0, 0, 0, .8); }
.bracket { position: absolute; width: 26px; height: 26px; border: 2px solid var(--accent); opacity: .9; }
.bracket.tl { top: 16px; left: 16px; border-width: 2px 0 0 2px; }
.bracket.tr { top: 16px; right: 16px; border-width: 2px 2px 0 0; }
.bracket.bl { bottom: 16px; left: 16px; border-width: 0 0 2px 2px; }
.bracket.br { bottom: 16px; right: 16px; border-width: 0 2px 2px 0; }
.crosshair { position: absolute; left: 50%; top: 50%; width: 30px; height: 30px; transform: translate(-50%, -50%); opacity: .35; }
.crosshair::before, .crosshair::after { content: ""; position: absolute; background: #fff; }
.crosshair::before { left: 50%; top: 0; bottom: 0; width: 1px; }
.crosshair::after { top: 50%; left: 0; right: 0; height: 1px; }
.hud::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 84px; background: linear-gradient(transparent, rgba(0, 0, 0, .62)); }
.hud-row { position: absolute; z-index: 1; left: 50px; right: 50px; bottom: 21px; display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.hud-row > span { display: flex; align-items: center; gap: 14px; white-space: nowrap; }
.hud-row em { font-style: normal; color: rgba(255, 255, 255, .6); }
.rec { display: flex; align-items: center; gap: 8px; }
.rec i { width: 8px; height: 8px; border-radius: 50%; background: var(--dim); }
.rec.is-live i { background: var(--rec); animation: blink 1.2s steps(2, jump-none) infinite; }
.rec.is-still i { background: var(--accent); }
.rec b { font-weight: 600; }

.loader { position: absolute; z-index: 3; display: grid; justify-items: center; gap: 12px; padding: 22px 26px; background: rgba(7, 7, 7, .86); border: 1px solid var(--line-strong); border-radius: 12px; backdrop-filter: blur(6px); }
.loader b { font-weight: 600; font-size: 15px; }
.loader small { font: 11px var(--mono); color: var(--muted); }
.loader-bar { width: 220px; height: 3px; background: var(--line-strong); border-radius: 3px; overflow: hidden; }
.loader-bar i { display: block; width: 40%; height: 100%; background: var(--accent); animation: slide 1.1s ease-in-out infinite; }
.dropzone { position: absolute; inset: 12px; z-index: 4; display: grid; place-items: center; border: 2px dashed var(--accent); border-radius: 10px; background: rgba(255, 214, 10, .08); font: 600 13px var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--accent); opacity: 0; transition: opacity .15s; pointer-events: none; }

/* Control strip */
.controlstrip { display: grid; grid-template-columns: minmax(200px, 1fr) auto auto; align-items: center; gap: 28px; padding: 14px 18px; border-top: 1px solid var(--line); }
.control { display: flex; align-items: center; gap: 14px; }
.control label, .control-label { font: 11px var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--muted); white-space: nowrap; display: flex; gap: 8px; align-items: center; }
.control output { color: var(--accent); font-weight: 600; min-width: 3ch; }
.confidence input { flex: 1; min-width: 120px; accent-color: var(--accent); }
.chips { display: flex; gap: 6px; flex-wrap: wrap; }
.chip { display: flex; align-items: center; gap: 7px; padding: 6px 11px; border: 1px solid var(--line-strong); border-radius: 999px; background: transparent; color: var(--muted); font-size: 12.5px; transition: border-color .15s, color .15s, background .15s; }
.chip:hover { color: var(--text); border-color: var(--dim); }
.chip.is-active { color: var(--text); border-color: var(--text); background: var(--surface-2); }
.swatch { width: 8px; height: 8px; border-radius: 2px; background: var(--other); }
.swatch.person { background: var(--person); }
.swatch.vehicle { background: var(--vehicle); }
.swatch.animal { background: var(--animal); }
.actions { gap: 8px; }
.ghost { padding: 8px 13px; border: 1px solid var(--line-strong); border-radius: 8px; background: transparent; font-size: 13px; color: var(--text); transition: border-color .15s, background .15s; }
.ghost:hover:not(:disabled) { border-color: var(--accent); background: rgba(255, 214, 10, .06); }
.ghost:disabled { opacity: .35; cursor: default; }

/* Deck */
.deck { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px; margin-top: 16px; }
.readouts { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
.readout { min-height: 132px; padding: 18px 20px; display: flex; flex-direction: column; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--surface); }
.readout:nth-child(2n) { border-right: 0; }
.readout:nth-child(n + 3) { border-bottom: 0; }
.readout > span { font: 11px var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
.readout strong { margin-top: auto; font-size: 40px; line-height: 1.05; font-weight: 600; letter-spacing: -.04em; font-variant-numeric: tabular-nums; }
.readout strong em { font-style: normal; }
.readout strong sub { vertical-align: baseline; margin-left: 5px; font: 500 13px var(--mono); letter-spacing: 0; color: var(--muted); }
.readout strong.text { font-size: 24px; letter-spacing: -.02em; }
.readout small { margin-top: 4px; font-size: 12.5px; color: var(--dim); }

.feed { border: 1px solid var(--line); border-radius: 14px; background: var(--surface); display: flex; flex-direction: column; min-height: 264px; }
.feed-head { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px; border-bottom: 1px solid var(--line); }
.feed-head h2 { margin: 0; font-size: 15px; font-weight: 600; }
.tag { font: 600 10px var(--mono); letter-spacing: .08em; padding: 4px 8px; border-radius: 5px; background: var(--surface-2); color: var(--accent); border: 1px solid var(--line-strong); }
.feed-summary { display: flex; flex-wrap: wrap; gap: 6px; padding: 12px 20px 0; }
.feed-summary:empty { display: none; }
.feed-summary span { display: flex; align-items: center; gap: 6px; font: 11px var(--mono); color: var(--muted); padding: 4px 8px; border: 1px solid var(--line); border-radius: 5px; }
.feed-summary b { color: var(--text); font-weight: 600; }
.feed-list { list-style: none; margin: 0; padding: 8px 20px 16px; max-height: 330px; overflow: auto; }
.feed-list li { display: grid; grid-template-columns: 10px minmax(0, 1fr) 90px 52px; align-items: center; gap: 12px; padding: 9px 0; border-bottom: 1px solid var(--line); font-size: 14px; animation: rowIn .25s ease-out both; }
.feed-list li:last-child { border-bottom: 0; }
.feed-list .bar { height: 4px; border-radius: 4px; background: var(--line-strong); overflow: hidden; }
.feed-list .bar i { display: block; height: 100%; background: var(--c, var(--accent)); }
.feed-list b { font: 600 12px var(--mono); text-align: right; font-variant-numeric: tabular-nums; }
.feed-list li.feed-empty { display: block; color: var(--dim); font-size: 13.5px; border: 0; padding: 12px 0; animation: none; }
.feed-list.is-live li { animation: none; }
.feed-list li.feed-more { display: block; font: 11px var(--mono); color: var(--dim); border: 0; }

/* Pipeline */
.pipeline { margin-top: 56px; padding-top: 28px; border-top: 1px solid var(--line); }
.pipeline h2 { margin: 0 0 22px; font: 500 11px var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.pipeline ol { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; counter-reset: step; }
.pipeline li { position: relative; padding: 0 22px 0 0; }
.pipeline li + li { padding-left: 22px; border-left: 1px solid var(--line); }
.pipeline li span { font: 11px var(--mono); color: var(--accent); }
.pipeline li b { display: block; margin: 8px 0 6px; font-size: 19px; font-weight: 600; letter-spacing: -.02em; }
.pipeline li p { margin: 0; color: var(--muted); font-size: 13.5px; }
.fineprint { max-width: 900px; margin: 32px 0 0; font-size: 12.5px; color: var(--dim); }
.fineprint a { color: var(--muted); border-bottom: 1px solid var(--line-strong); }
.fineprint a:hover { color: var(--accent); border-color: var(--accent); }

.footer { width: min(1320px, 100% - 32px); margin: 40px auto 0; padding: 22px 0 36px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 16px; font-size: 13px; color: var(--dim); }
.footer a:hover { color: var(--accent); }

@keyframes blink { 50% { opacity: .2; } }
@keyframes slide { from { transform: translateX(-100%); } to { transform: translateX(250%); } }
@keyframes rowIn { from { opacity: 0; transform: translateY(4px); } }

@media (max-width: 1080px) {
  .controlstrip { grid-template-columns: 1fr; gap: 14px; }
  .actions { justify-content: flex-start; }
  .deck { grid-template-columns: 1fr; }
  .pipeline ol { grid-template-columns: 1fr 1fr; row-gap: 26px; }
  .pipeline li:nth-child(3) { padding-left: 0; border-left: 0; }
}
@media (max-width: 720px) {
  .topbar-meta { display: none; }
  .intro { display: block; }
  .intro p { margin-top: 12px; }
  .sourcebar { flex-direction: column; align-items: stretch; gap: 10px; }
  .sources { display: grid; grid-template-columns: 1fr 1fr; }
  .source { justify-content: center; padding: 9px 10px; }
  .source span { display: none; }
  .status { text-align: left; }
  .stage { aspect-ratio: 4 / 3; }
  .hud { font-size: 9.5px; }
  .hud-row { left: 20px; right: 20px; bottom: 14px; }
  .hud-row em { display: none; }
  .control { flex-wrap: wrap; }
  .readout { min-height: 112px; padding: 14px 16px; }
  .readout strong { font-size: 32px; }
  .readout strong.text { font-size: 19px; }
  .pipeline ol { grid-template-columns: 1fr; }
  .pipeline li, .pipeline li + li { padding: 0 0 0 16px; border-left: 1px solid var(--line); }
  .footer { flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}