:root {
  --bg: #07090d;
  --surface: #10161f;
  --surface-2: #17202c;
  --line: #243142;
  --text: #f2f4f7;
  --muted: #9aa4b2;
  --accent: #ffc247;
  --teal: #4dd0e1;
  --very-close: #ff5a4e;
  --close: #ff9f1c;
  --near-ok: #3ddc84;
  --radius: 18px;
  --font: "Atkinson Hyperlegible", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: radial-gradient(1200px 600px at 80% -10%, #142033 0%, transparent 60%), var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.5;
}

.skip {
  position: absolute; left: -999px; top: 8px;
  background: var(--accent); color: #000; padding: 8px 14px; border-radius: 8px;
}
.skip:focus { left: 16px; z-index: 10; }

:focus-visible { outline: 3px solid var(--teal); outline-offset: 3px; }

.top, main { max-width: 1180px; margin: 0 auto; padding: 0 24px; }

.top {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 22px; padding-bottom: 8px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 20px; }
.mark { width: 28px; height: 28px; color: var(--accent); }
.gh { color: var(--muted); text-decoration: none; font-size: 15px; border-bottom: 1px solid var(--line); }
.gh:hover { color: var(--text); }

.hero { padding: 36px 0 28px; max-width: 760px; }
.hero h1 { font-size: clamp(34px, 5.4vw, 56px); line-height: 1.05; margin: 0 0 16px; letter-spacing: -0.02em; }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero p { color: var(--muted); margin: 0; font-size: 18px; }

.workspace {
  display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: 28px; align-items: start;
}

.stage {
  position: relative; aspect-ratio: 3 / 4; max-height: 72vh; width: 100%;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; display: grid; place-items: center;
}
.stage.drag { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(255, 194, 71, .25); }
.stage canvas, .stage video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; }
.stage video { visibility: hidden; }
.placeholder { text-align: center; padding: 24px; }
.ph-title { font-size: 22px; font-weight: 700; margin: 0 0 4px; }
.ph-sub { color: var(--muted); margin: 0; }
.has-image .placeholder { display: none; }

.loading {
  position: absolute; left: 50%; bottom: 20px; transform: translateX(-50%);
  width: min(320px, 80%); background: rgba(7, 9, 13, .85); border: 1px solid var(--line);
  border-radius: 12px; padding: 10px 14px; font-size: 14px; color: var(--muted);
}
.loading p { margin: 0 0 8px; }
.loading[hidden] { display: none; }
.bar { height: 6px; background: var(--surface-2); border-radius: 3px; overflow: hidden; }
.fill { height: 100%; width: 0; background: var(--accent); transition: width .2s; }

.inputs { display: flex; gap: 12px; margin: 14px 0; flex-wrap: wrap; }
.btn {
  appearance: none; border: 1px solid var(--line); background: var(--surface-2); color: var(--text);
  font: 700 16px var(--font); padding: 12px 18px; border-radius: 12px; cursor: pointer; min-height: 48px;
  display: inline-flex; align-items: center;
}
.btn:hover { border-color: var(--muted); }
.btn:focus-within { outline: 3px solid var(--teal); outline-offset: 3px; }
.btn[aria-pressed="true"] { background: var(--accent); color: #000; border-color: var(--accent); }

.examples { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.ex {
  appearance: none; padding: 0; border: 1px solid var(--line); background: var(--surface);
  border-radius: 12px; overflow: hidden; cursor: pointer; color: var(--text); text-align: left;
}
.ex:hover { border-color: var(--accent); }
.ex img { display: block; width: 100%; aspect-ratio: 3 / 4; object-fit: cover; }
.ex span { display: block; padding: 7px 9px; font-size: 13px; font-weight: 700; }

.say-card {
  background: #1d1d1f; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px 22px 14px;
}
.say-label { margin: 0; color: var(--muted); font-size: 13px; letter-spacing: .08em; text-transform: uppercase; }
.say {
  margin: 8px 0 12px; color: var(--accent); font-weight: 700;
  font-size: clamp(26px, 3.2vw, 36px); line-height: 1.2; min-height: 2.4em;
}
.say-meta { display: flex; justify-content: space-between; align-items: center; color: var(--muted); font-size: 14px; gap: 12px; }
#timing { font-family: var(--mono); font-size: 13px; }
.toggle { display: inline-flex; gap: 8px; align-items: center; cursor: pointer; }
.toggle input { width: 18px; height: 18px; accent-color: var(--accent); }

.modes { border: 0; padding: 0; margin: 20px 0 0; display: grid; gap: 8px; }
.modes legend { color: var(--muted); font-size: 13px; letter-spacing: .08em; text-transform: uppercase; margin-bottom: 8px; padding: 0; }
.modes label { position: relative; cursor: pointer; }
.modes input { position: absolute; opacity: 0; }
.modes span {
  display: flex; gap: 12px; align-items: baseline; padding: 12px 16px; border-radius: 12px;
  border: 1px solid var(--line); background: var(--surface); color: var(--muted);
}
.modes b { color: var(--text); font-size: 17px; min-width: 76px; }
.modes input:checked + span { border-color: var(--accent); background: rgba(255, 194, 71, .08); }
.modes input:checked + span b { color: var(--accent); }
.modes input:focus-visible + span { outline: 3px solid var(--teal); outline-offset: 2px; }

.target { display: grid; gap: 6px; margin-top: 14px; }
.target[hidden] { display: none; }
.target span { color: var(--muted); font-size: 14px; }
.target select {
  font: 16px var(--font); padding: 11px 12px; border-radius: 10px; min-height: 46px;
  background: var(--surface-2); color: var(--text); border: 1px solid var(--line);
}

.dets { margin-top: 20px; }
.dets-head { margin: 0 0 8px; color: var(--muted); font-size: 13px; letter-spacing: .08em; text-transform: uppercase; }
#det-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
#det-list li {
  display: grid; grid-template-columns: 10px 1fr auto; gap: 12px; align-items: center;
  padding: 9px 12px; border-radius: 10px; background: var(--surface); border: 1px solid var(--line);
}
#det-list .dot { width: 10px; height: 10px; border-radius: 50%; }
#det-list .what { font-weight: 700; }
#det-list .where { color: var(--muted); font-size: 14px; display: block; font-weight: 400; }
#det-list .num { font-family: var(--mono); font-size: 13px; color: var(--muted); text-align: right; }
#det-list .empty { grid-template-columns: 1fr; color: var(--muted); }

.how {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px;
  margin: 56px 0 24px; padding-top: 28px; border-top: 1px solid var(--line);
}
.how h2 { font-size: 18px; margin: 0 0 6px; color: var(--teal); }
.how p { margin: 0; color: var(--muted); font-size: 15px; }

.fine { color: var(--muted); font-size: 14px; margin: 0 0 48px; max-width: 760px; }

@media (max-width: 860px) {
  /* one column, answer directly under the photo */
  .workspace { display: flex; flex-direction: column; gap: 0; }
  .stage-col, .panel-col { display: contents; }
  .stage { order: 1; }
  .say-card { order: 2; margin-top: 14px; }
  .modes { order: 3; }
  .target { order: 4; }
  .inputs { order: 5; margin-top: 18px; }
  .examples { order: 6; }
  .dets { order: 7; }
  .stage { max-height: 64vh; }
  .how { grid-template-columns: minmax(0, 1fr); gap: 18px; }
}

@media (max-width: 520px) {
  .top, main { padding: 0 16px; }
  .top { padding-top: 16px; }
  .hero { padding: 24px 0 20px; }
  .examples { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .modes b { min-width: 64px; }
}

@media (prefers-reduced-motion: reduce) {
  .fill { transition: none; }
}