:root {
  --ink: #212638;
  --ink-2: #45474a;
  --orange: #f15d22;
  --orange-deep: #f15d22;
  --line: #d6d7da;
  --soft: #f7f7f7;
  --blue-deep: #5e91ff;
  --err: #212638;
  --ok: #212638;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; background: #fff; color: var(--ink); font: 400 14px/1.5 'Poppins', system-ui, sans-serif; }
h1 { margin: 0; font-size: 20px; font-weight: 600; }
h2 { margin: 0 0 10px; font-size: 18px; font-weight: 600; }
button, input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 3px solid var(--blue-deep); outline-offset: 1px; }

.top { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; padding: 12px 20px; border-bottom: 1px solid var(--line); }
.top-actions { display: flex; flex-wrap: wrap; gap: 8px; }
button, .file-btn {
  padding: 8px 12px;
  border: 1.5px solid var(--ink);
  border-radius: 8px;
  background: #fff;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
}
button:disabled { opacity: 0.45; cursor: not-allowed; }
button.primary, button.add { background: var(--orange-deep); border-color: var(--orange-deep); color: #fff; }
button.quiet { border-color: var(--line); color: var(--ink-2); font-weight: 600; }
.file-btn { position: relative; display: inline-block; }
.file-btn input { position: absolute; inset: 0; opacity: 0; cursor: pointer; width: 100%; }
.file-btn:focus-within { outline: 3px solid var(--blue-deep); outline-offset: 1px; }
.file-btn.small { margin-top: 8px; font-size: 13px; padding: 6px 10px; }

.layout { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: 24px; padding: 20px; max-width: 1280px; margin-inline: auto; }
@media (max-width: 860px) { .layout { grid-template-columns: 1fr; } }

video { width: 100%; background: #000; border-radius: 8px; display: block; aspect-ratio: 16 / 9; }
.timeline { position: relative; height: 26px; margin: 10px 0; background: var(--soft); border-radius: 6px; }
.timeline button {
  position: absolute;
  top: 3px;
  width: 20px;
  height: 20px;
  margin-left: -10px;
  padding: 0;
  border-radius: 4px;
  background: #fff;
  font-size: 11px;
  line-height: 1;
}
.timeline button.is-selected { background: var(--orange-deep); border-color: var(--orange-deep); color: #fff; }
.timeline .playhead { position: absolute; top: 0; bottom: 0; width: 2px; background: var(--ink); pointer-events: none; }
button.add { width: 100%; padding: 12px; font-size: 16px; }
.hint { margin: 8px 0 0; color: var(--ink-2); font-size: 13.5px; }
.source { margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--line); }
label { font-weight: 600; font-size: 14px; }
input[type='text'], textarea, select { width: 100%; margin-top: 4px; padding: 8px 10px; border: 1.5px solid var(--line); border-radius: 8px; background: #fff; }
textarea { min-height: 62px; resize: vertical; }

.q-list { list-style: none; margin: 0 0 14px; padding: 0; border-top: 1px solid var(--line); }
.q-list li { border-bottom: 1px solid var(--line); }
.q-list button {
  display: grid;
  grid-template-columns: 44px 1fr auto;
  gap: 8px;
  width: 100%;
  padding: 9px 8px;
  border: 0;
  border-radius: 0;
  background: #fff;
  text-align: left;
  font-weight: 600;
}
.q-list button.is-selected { background: #eaf1ff; }
.q-time { font-variant-numeric: tabular-nums; color: var(--orange-deep); font-weight: 600; }
.q-tag { font-size: 12px; color: var(--ink-2); font-weight: 600; }
.empty { padding: 14px 8px; color: var(--ink-2); }

.q-form { display: grid; gap: 12px; padding: 14px; background: var(--soft); border-radius: 10px; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; align-items: end; }
.time-row { display: flex; gap: 8px; align-items: stretch; margin-top: 4px; }
.time-row input { margin-top: 0; }
.time-row button { white-space: nowrap; font-size: 13px; }
fieldset { margin: 0; padding: 0; border: 0; }
legend { padding: 0; font-weight: 600; font-size: 14px; }
.opt-row { display: flex; align-items: center; gap: 8px; margin-top: 6px; }
.opt-row input[type='text'] { margin-top: 0; }
.opt-row input[type='radio'] { flex: none; width: 18px; height: 18px; accent-color: var(--ok); }
.opt-row button { flex: none; padding: 6px 9px; border-color: var(--line); font-weight: 600; font-size: 13px; }
.mini { margin-top: 8px; font-size: 13px; padding: 6px 10px; }
.check { display: flex; gap: 8px; align-items: flex-start; font-weight: 600; }
.check input { margin-top: 3px; width: 16px; height: 16px; accent-color: var(--orange-deep); }
.form-foot { display: flex; justify-content: flex-end; }
button.danger { border-color: var(--err); color: var(--err); font-size: 13px; }

.problems { margin-top: 14px; font-size: 14px; }
.problems ul { margin: 6px 0 0; padding-left: 18px; color: var(--err); font-weight: 600; }
.problems .ready { color: var(--ok); font-weight: 600; margin: 0; }