:root {
  --bg: #f6f7f9; --card: #ffffff; --text: #16191d; --muted: #646b75; --line: #e1e4e8;
  --accent: #1f6feb; --accent-text: #ffffff; --ok: #1a7f37; --warn: #9a6700; --bad: #cf222e;
  --ok-bg: #dafbe1; --warn-bg: #fff8c5; --bad-bg: #ffebe9;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1117; --card: #161b22; --text: #e6edf3; --muted: #8d96a0; --line: #30363d;
    --accent: #4493f8; --accent-text: #0d1117; --ok: #3fb950; --warn: #d29922; --bad: #f85149;
    --ok-bg: #12261e; --warn-bg: #272115; --bad-bg: #2d1416;
  }
}
* { box-sizing: border-box; }
/* Elements marked hidden stay hidden even when a class gives them a display (flex, grid…). */
[hidden] { display: none !important; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.4 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  padding: env(safe-area-inset-top) 16px calc(env(safe-area-inset-bottom) + 24px);
}
header { display: flex; justify-content: space-between; align-items: center; padding: 14px 0 8px; }
h1 { font-size: 20px; margin: 0; }
h2 { font-size: 16px; margin: 0 0 10px; }
a { color: var(--accent); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 14px; margin: 12px 0; }
.muted { color: var(--muted); font-size: 14px; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
label.field { display: grid; gap: 4px; font-size: 14px; color: var(--muted); flex: 1 1 140px; }
input, select, button { font: inherit; color: inherit; }
input[type=password], input[type=text], select {
  width: 100%; padding: 10px; border-radius: 10px; border: 1px solid var(--line); background: var(--bg);
}
input[type=range] { width: 100%; }
button {
  padding: 12px 16px; border-radius: 12px; border: 1px solid var(--line); background: var(--card); cursor: pointer;
}
button.primary { background: var(--accent); color: var(--accent-text); border-color: var(--accent); font-weight: 600; }
button:disabled { opacity: .5; }
.big { width: 100%; padding: 16px; font-size: 17px; }
.file-btn { display: block; text-align: center; }
.file-btn input { display: none; }
.clip { display: grid; gap: 6px; padding: 12px 0; border-top: 1px solid var(--line); }
.clip:first-child { border-top: 0; }
.clip-head { display: flex; justify-content: space-between; gap: 8px; font-weight: 600; }
.facts { font-size: 13px; color: var(--muted); display: flex; flex-wrap: wrap; gap: 4px 12px; }
.pill { display: inline-block; font-size: 12px; font-weight: 600; padding: 2px 8px; border-radius: 99px; }
.pill.confident, .pill.done { background: var(--ok-bg); color: var(--ok); }
.pill.check, .pill.paused { background: var(--warn-bg); color: var(--warn); }
.pill.none, .pill.error { background: var(--bad-bg); color: var(--bad); }
.heard { font-size: 14px; font-style: italic; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; font-size: 12px; }
.step { background: var(--bg); border-radius: 8px; padding: 6px; text-align: center; }
.bar { height: 4px; background: var(--line); border-radius: 2px; overflow: hidden; margin-top: 4px; }
.bar > i { display: block; height: 100%; width: 0; background: var(--accent); transition: width .2s; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
td { padding: 6px 0; border-top: 1px solid var(--line); }
td:last-child { text-align: right; font-variant-numeric: tabular-nums; }
.hidden { display: none !important; }
video { width: 100%; border-radius: 10px; background: #000; }
.error-text { color: var(--bad); font-size: 14px; }

/* ---------- Player ---------- */
.player { max-width: 1100px; margin: 0 auto; }
.player-head { display: grid; grid-template-columns: auto 1fr auto; gap: 12px; align-items: center; padding: 12px 0; }
.player-head h1 { font-size: 20px; }
.player-head .sub { color: var(--muted); font-size: 13px; }
.player-head nav { display: flex; gap: 12px; font-size: 14px; }
.stage {
  position: relative; background: #000; border-radius: 12px; overflow: hidden;
  height: min(62vh, 640px); touch-action: pan-y; user-select: none; -webkit-user-select: none;
}
.stage video, .stage canvas.frame { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; border-radius: 0; }
.stage:fullscreen { height: 100vh; border-radius: 0; }
/* Scrubber: our own track so the A–B band can sit under the thumb. Positions use --a/--b/--start/--end (0–1). */
.scrub-wrap { --thumb: 22px; --track: 6px; position: relative; margin: 22px 0 4px; }
.scrub-wrap::before {
  content: ''; position: absolute; left: calc(var(--thumb) / 2); right: calc(var(--thumb) / 2); top: 50%;
  height: var(--track); transform: translateY(-50%); background: var(--line); border-radius: 3px;
}
.loop-band {
  position: absolute; top: 50%; height: calc(var(--track) + 4px); transform: translateY(-50%); border-radius: 5px;
  left: calc(var(--thumb) / 2 + var(--start) * (100% - var(--thumb)));
  width: calc((var(--end) - var(--start)) * (100% - var(--thumb)));
  background: color-mix(in srgb, var(--ok) 35%, transparent); pointer-events: none;
}
.loop-band.on { background: var(--ok); }
.mark {
  position: absolute; bottom: calc(50% + var(--thumb) / 2 + 2px); transform: translateX(-50%);
  font-size: 11px; font-weight: 700; line-height: 1; padding: 3px 5px; border-radius: 6px;
  background: var(--ok); color: #fff; pointer-events: none;
}
.mark-a { left: calc(var(--thumb) / 2 + var(--a) * (100% - var(--thumb))); }
.mark-b { left: calc(var(--thumb) / 2 + var(--b) * (100% - var(--thumb))); }
.scrub {
  position: relative; z-index: 1; display: block; width: 100%; height: 32px; margin: 0;
  -webkit-appearance: none; appearance: none; background: transparent; touch-action: none;
}
.scrub::-webkit-slider-runnable-track { height: var(--track); background: transparent; }
.scrub::-moz-range-track { height: var(--track); background: transparent; }
.scrub::-webkit-slider-thumb {
  -webkit-appearance: none; width: var(--thumb); height: var(--thumb); border-radius: 50%;
  margin-top: calc((var(--track) - var(--thumb)) / 2); background: var(--accent); border: 2px solid #fff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, .4);
}
.scrub::-moz-range-thumb {
  width: var(--thumb); height: var(--thumb); border-radius: 50%; background: var(--accent); border: 2px solid #fff;
}
.label { font-variant-numeric: tabular-nums; color: var(--muted); font-size: 14px; text-align: center; }
.notice { font-size: 13px; color: var(--warn); text-align: center; }
.controls { display: flex; flex-wrap: wrap; gap: 10px 18px; justify-content: center; margin: 12px 0 24px; }
.controls .group { display: flex; gap: 6px; align-items: center; }
.controls button { min-width: 48px; min-height: 48px; padding: 8px 12px; font-size: 18px; touch-action: manipulation; }
.controls button[aria-pressed="true"] { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }
.controls button:disabled { opacity: .35; }
.controls .play { min-width: 64px; font-size: 22px; }
.controls a.download { font-size: 15px; padding: 12px 6px; }
@media (max-width: 600px) {
  .player-head { grid-template-columns: 1fr; gap: 4px; }
  .stage { height: 56vh; }
  .controls { gap: 8px 12px; }
}

.thumb { width: 100%; aspect-ratio: 16 / 9; object-fit: contain; background: #000; border-radius: 10px; display: block; }

/* ---------- Gallery ---------- */
.gallery { max-width: 1100px; margin: 0 auto; }
.gallery-head { padding: 14px 0 6px; }
.toolbar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.toolbar select { width: auto; flex: 1 1 160px; padding: 10px; }
.chip { border-radius: 999px; padding: 10px 14px; font-weight: 600; }
.chip[aria-pressed="true"] { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }
button.link { background: none; border: 0; padding: 4px; color: var(--accent); font-size: 14px; text-decoration: underline; }
.me-picker { max-width: 420px; }
.me-picker select { margin: 8px 0; }
.summary { margin: 10px 0 0; }
.day-group h2.day { font-size: 15px; margin: 18px 0 8px; color: var(--muted); font-weight: 600; text-transform: none; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }
.clip-card {
  display: block; text-decoration: none; color: inherit; background: var(--card);
  border: 1px solid var(--line); border-radius: 12px; padding: 8px; transition: border-color .15s;
}
.clip-card:hover, .clip-card:focus-visible { border-color: var(--accent); }
.clip-card .name { font-weight: 600; margin-top: 6px; }
.clip-card .meta { font-size: 13px; color: var(--muted); font-variant-numeric: tabular-nums; }
.clip-card .flag { font-size: 12px; color: var(--warn); font-weight: 600; margin-top: 2px; }
.empty { color: var(--muted); padding: 24px 0; text-align: center; }
@media (max-width: 600px) {
  .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
  .clip-card { padding: 6px; }
}

/* ---------- Drawing ---------- */
.stage canvas.ink { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 2; touch-action: none; }
.stage canvas.bones { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 1; pointer-events: none; }
.controls button.skeleton[aria-pressed="true"] { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }
.skeleton-status:empty { display: none; }
.draw-tools {
  display: flex; flex-wrap: wrap; gap: 6px; align-items: center; justify-content: center;
  margin: 10px 0 0; padding: 8px; border: 1px solid var(--line); border-radius: 12px; background: var(--card);
}
.draw-tools button { min-height: 44px; padding: 8px 10px; font-size: 15px; }
.draw-tools button[aria-pressed="true"] { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }
.draw-status { font-size: 13px; color: var(--bad); width: 100%; text-align: center; }
.draw-status:empty { display: none; }
.controls button.draw[aria-pressed="true"] { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }
.player .me-picker { max-width: 420px; margin: 10px auto 0; }
/* Ticks on the scrubber where drawings are */
.ticks { position: absolute; inset: 0; pointer-events: none; }
.tick {
  position: absolute; top: calc(50% + var(--thumb) / 2 - 2px); width: 3px; height: 8px; border-radius: 2px;
  left: calc(var(--thumb) / 2 + var(--p) * (100% - var(--thumb))); transform: translateX(-50%); background: var(--warn);
}
/* Gallery badge */
.clip-card .badge { display: inline-block; margin-top: 4px; font-size: 12px; padding: 2px 6px; border-radius: 6px; background: var(--bg); border: 1px solid var(--line); }

/* ---------- Compare ---------- */
.compare { max-width: 1400px; }
.compare-panes { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.pane h2 { font-size: 16px; margin: 0; }
.pane .sub { color: var(--muted); font-size: 12px; margin-bottom: 6px; }
.pane .stage { height: min(52vh, 560px); }
.pane .scrub-wrap { margin-top: 10px; }
.pane .controls { margin: 6px 0 0; }
.controls.shared { margin-top: 16px; border-top: 1px solid var(--line); padding-top: 12px; }
.controls button.lock[aria-pressed="true"] { background: var(--ok); color: #fff; border-color: var(--ok); }
.sync-status { text-align: center; color: var(--muted); font-size: 14px; }
@media (max-width: 760px), (orientation: portrait) {
  .compare-panes { grid-template-columns: 1fr; }
  .pane .stage { height: 30vh; }
}
/* Gallery: picking clips to compare */
.compare-bar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: 10px; }
.compare-bar .pick-status { flex: 1 1 140px; font-weight: 600; }
.clip-card.selected { border-color: var(--ok); box-shadow: 0 0 0 3px color-mix(in srgb, var(--ok) 45%, transparent); }
.toolbar .compare-mode[aria-pressed="true"] { background: var(--ok); color: #fff; border-color: var(--ok); }

/* ---------- Review ---------- */
.review { max-width: 900px; margin: 0 auto; }
.queue-status { font-weight: 600; }
.toast { color: var(--ok); font-weight: 600; min-height: 1.4em; }
.review-item { display: grid; grid-template-columns: minmax(160px, 260px) 1fr; gap: 12px; align-items: start; }
.review-item video { width: 100%; aspect-ratio: 16 / 9; object-fit: contain; }
.review-item .heard { font-style: italic; margin: 0 0 4px; }
.review-item .current { margin: 0 0 8px; }
.suggest { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 8px; }
.suggest button, .all-names button { min-height: 44px; }
.all-names { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 6px; margin: 8px 0; }
.review-item details summary { cursor: pointer; color: var(--accent); margin: 4px 0; }
.review-item select.run { width: auto; }
.aliases { list-style: none; padding: 0; }
.aliases li { display: flex; justify-content: space-between; align-items: center; padding: 6px 0; border-top: 1px solid var(--line); }
@media (max-width: 600px) { .review-item { grid-template-columns: 1fr; } }
/* Player: fix name */
.title-row { display: flex; gap: 10px; align-items: baseline; flex-wrap: wrap; }
.fix-panel { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; max-width: 520px; }
.fix-panel select { width: auto; flex: 1 1 160px; }
.fix-status { margin: 2px 0 0; font-size: 13px; }
.fix-status:empty { display: none; }
.gallery .toolbar a.review { text-decoration: none; border: 1px solid var(--line); color: inherit; }

/* ---------- 9-frame sequence ---------- */
.sequence-panel, .sequence-result { max-width: 900px; margin: 10px auto 0; }
.sequence-panel .row, .sequence-result .row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 6px 0; }
.sequence-panel button { min-height: 44px; }
.sequence-result img { width: 100%; height: auto; border-radius: 8px; display: block; }
.seq-status:empty { display: none; }
.seq-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; padding: 6px 0; border-top: 1px solid var(--line); }
.seq-row strong { min-width: 150px; }
.seq-row .middle-value { min-width: 120px; font-size: 14px; }
.seq-row .spread { display: inline-flex; gap: 6px; align-items: center; margin-left: auto; }
.seq-row .spread button { min-width: 40px; min-height: 40px; font-size: 18px; }
.seq-row .spread-value { min-width: 110px; text-align: center; font-variant-numeric: tabular-nums; font-size: 14px; }
.seq-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; margin: 10px 0; }
.seq-grid .box { display: flex; flex-direction: column; align-items: stretch; padding: 4px; gap: 2px; border-radius: 8px; font-size: 12px; }
.seq-grid .box canvas.thumb { width: 100%; height: auto; aspect-ratio: 16 / 9; background: #000; border-radius: 4px; }
.seq-grid .box.middle { border-color: var(--ok); }
.seq-grid .box .key { color: var(--ok); font-weight: 700; }
.seq-body select.discipline { width: auto; }

/* ---------- motion image ---------- */
.motion-panel, .motion-result { max-width: 900px; margin: 10px auto 0; }
.motion-panel .row, .motion-result .row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 6px 0; }
.motion-panel button, .motion-result button { min-height: 44px; }
.motion-panel .start-value, .motion-panel .end-value { min-width: 110px; font-variant-numeric: tabular-nums; }
.motion-panel .count-value { min-width: 90px; text-align: center; font-variant-numeric: tabular-nums; }
.motion-panel .count-minus, .motion-panel .count-plus { min-width: 44px; font-size: 18px; }
.motion-status:empty { display: none; }
.motion-result img { width: 100%; height: auto; border-radius: 8px; display: block; }
.motion-result .figure { min-width: 44px; }
.motion-result .animate[aria-pressed="true"],
.motion-result .whole-frame[aria-pressed="true"],
.motion-result .figure[aria-pressed="true"] { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }

/* ---------- post (social video) ---------- */
.post-panel, .post-result { max-width: 900px; margin: 10px auto 0; }
.post-panel .row, .post-result .row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 6px 0; }
.post-panel button, .post-result button { min-height: 44px; }
.post-panel .shape { min-width: 64px; }
.post-panel .shape[aria-pressed="true"] { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }
.post-panel .start-value, .post-panel .end-value { min-width: 110px; font-variant-numeric: tabular-nums; }
.post-panel input[type="checkbox"] { width: 22px; height: 22px; }
.post-panel .position input { flex: 1; min-width: 160px; }
.post-panel .post-preview { display: block; max-height: 320px; max-width: 100%; width: auto; margin: 8px 0; border-radius: 8px; background: #000; }
.post-status:empty { display: none; }
.post-result video { display: block; max-height: 70vh; max-width: 100%; margin: 0 auto; border-radius: 8px; background: #000; }
.post-panel .zoom, .post-panel .speed { min-width: 52px; }
.post-panel .zoom[aria-pressed="true"], .post-panel .speed[aria-pressed="true"],
.export-shape[aria-pressed="true"] { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }
.export-shape { min-width: 56px; min-height: 44px; }
.motion-result video { display: block; max-height: 70vh; max-width: 100%; margin: 8px auto 0; border-radius: 8px; background: #000; }
.sequence-result .row { flex-wrap: wrap; }

/* ---------- import ---------- */
.import-panel { max-width: 900px; margin: 10px auto 0; }
.import-panel .row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.import-panel input { flex: 1; min-width: 220px; min-height: 44px; }
.import-panel button { min-height: 44px; }
.import-status:empty { display: none; }