/* Demo shell: flat 16:9 recording layout. No remote assets, no webfonts. */
:root {
  --bg: #101418;
  --panel: #1a2129;
  --panel2: #232c36;
  --ink: #f2f4f6;
  --muted: #b9c2cc;
  --line: #2f3a46;
  --accent: #2dd4bf;
  --accent-ink: #062a26;
  --warn: #fbbf24;
  --bad: #f87171;
  --good: #34d399;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 15px;
  line-height: 1.4;
}
.stage {
  width: min(1280px, 100vw);
  aspect-ratio: 16 / 9;
  max-height: 100vh;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  overflow: hidden;
}
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  flex: 0 0 auto;
}
.brand { display: flex; align-items: center; gap: 10px; }
.dot { width: 12px; height: 12px; border-radius: 50%; background: var(--accent); }
.title { font-weight: 700; font-size: 17px; }
.draft {
  font-size: 11px; font-weight: 700; vertical-align: 2px;
  background: var(--warn); color: #231600; border-radius: 4px; padding: 1px 6px;
}
.subtitle { color: var(--muted); font-size: 12px; }
.controls { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.mode { display: flex; gap: 10px; background: var(--panel2); padding: 6px 10px; border-radius: 6px; }
.mode label { display: flex; gap: 5px; align-items: center; font-weight: 600; font-size: 13px; }
.endpoint { color: var(--muted); font-size: 12px; display: flex; gap: 6px; align-items: center; }
.endpoint input {
  background: #0c1014; color: var(--ink); border: 1px solid var(--line);
  border-radius: 6px; padding: 5px 8px; font-size: 13px;
}
.ttfr {
  background: #0c1014; border: 1px solid var(--line); border-radius: 6px;
  padding: 5px 10px; font-size: 13px; display: flex; gap: 8px; align-items: baseline;
}
.ttfr-label { color: var(--muted); font-size: 11px; }
#ttfr { font-weight: 700; font-variant-numeric: tabular-nums; }
.run {
  background: var(--accent); color: var(--accent-ink); border: 0; border-radius: 6px;
  font-weight: 800; font-size: 15px; padding: 9px 16px; cursor: pointer;
}
.run:disabled { opacity: 0.55; cursor: default; }
.grid {
  flex: 1 1 auto;
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 0;
  min-height: 0;
}
.left {
  background: var(--panel); border-right: 1px solid var(--line);
  padding: 10px 12px; overflow: auto;
}
.right { padding: 10px 12px; overflow: auto; background: var(--bg); }
h2 { font-size: 13px; margin: 10px 0 6px; color: var(--muted); font-weight: 700; }
h2:first-child { margin-top: 0; }
.hint { font-weight: 400; font-size: 11px; }
.samples { display: flex; flex-direction: column; gap: 6px; }
.sample {
  text-align: left; background: var(--panel2); color: var(--ink);
  border: 1px solid var(--line); border-radius: 6px; padding: 8px 10px; cursor: pointer;
}
.sample .t { font-weight: 700; font-size: 14px; }
.sample .d { color: var(--muted); font-size: 12px; }
.sample.active { border-color: var(--accent); }
.chain { margin: 0; padding-left: 22px; }
.chain li { margin: 3px 0; font-size: 14px; }
.inputs {
  background: #0c1014; border: 1px solid var(--line); border-radius: 6px;
  padding: 8px; font-size: 12px; white-space: pre-wrap; word-break: break-word; margin: 0;
}
.progress-row { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.progress { flex: 1; height: 8px; background: var(--panel2); border-radius: 4px; overflow: hidden; }
#progressBar { height: 100%; width: 0%; background: var(--accent); }
#progressLabel { font-size: 12px; color: var(--muted); min-width: 120px; text-align: right; }
.steps { display: flex; flex-direction: column; gap: 8px; }
.step {
  background: var(--panel); border: 1px solid var(--line); border-radius: 6px; padding: 8px 10px;
}
.step-head { display: flex; justify-content: space-between; gap: 8px; align-items: baseline; }
.step-tool { font-weight: 700; }
.badge { font-size: 11px; font-weight: 700; border-radius: 4px; padding: 1px 7px; }
.badge.pending { background: var(--panel2); color: var(--muted); }
.badge.running { background: var(--warn); color: #231600; }
.badge.ok { background: var(--good); color: #052419; }
.badge.error { background: var(--bad); color: #2b0606; }
.step pre {
  background: #0c1014; border: 1px solid var(--line); border-radius: 6px;
  padding: 8px; font-size: 13px; white-space: pre-wrap; word-break: break-word;
}
.step table { border-collapse: collapse; width: 100%; font-size: 13px; margin-top: 6px; }
.step th, .step td { border: 1px solid var(--line); padding: 5px 8px; text-align: left; }
.step th { background: var(--panel2); }
.step img { max-width: 100%; max-height: 220px; border: 1px solid var(--line); border-radius: 6px; }
.step .err { color: var(--bad); font-weight: 600; }
.statusbar {
  flex: 0 0 auto;
  display: flex; justify-content: space-between; gap: 10px;
  padding: 7px 14px; background: var(--panel); border-top: 1px solid var(--line);
  font-size: 12px; color: var(--muted);
}
.help {
  position: absolute; right: 12px; bottom: 44px; width: 340px;
  background: var(--panel2); border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px;
}
.help kbd { background: #0c1014; border: 1px solid var(--line); border-radius: 4px; padding: 0 5px; }
@media (prefers-reduced-motion: reduce) {
  * { transition: none; animation: none; }
}

/* Keep selection and keyboard focus separately visible. */
button:focus-visible, input:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}
.steps > .err { color: var(--bad); font-weight: 600; }

/* Narrow screens (phones, portrait tablets): drop the 16:9 recording frame, let the page scroll and stack the panels.
   Order on a phone: sticky header with Run, sample picker (swipe), results, then chain and inputs. Layout above 900 px is unchanged. */
@media (max-width: 900px) {
  .stage { width: 100%; aspect-ratio: auto; max-height: none; min-height: 100vh; overflow: visible; }
  .topbar { position: sticky; top: 0; z-index: 5; flex-direction: column; align-items: stretch; gap: 6px; padding: 8px 12px; }
  .subtitle, .endpoint, .ttfr-label { display: none; }
  .controls { justify-content: space-between; gap: 8px; }
  .run { flex: 1 1 100%; padding: 12px 16px; font-size: 16px; }
  .grid { display: flex; flex-direction: column; }
  .left { display: contents; }
  .left > * { order: 3; margin-left: 12px; margin-right: 12px; }
  .left > h2:first-child, .left > #sampleList { order: 1; }
  .samples { flex-direction: row; overflow-x: auto; padding-bottom: 6px; }
  .sample { flex: 0 0 72%; }
  .sample .d { display: none; }
  .right { order: 2; overflow: visible; border-top: 1px solid var(--line); margin-top: 8px; }
  .step table { display: block; overflow-x: auto; }
  .help { left: 12px; right: 12px; width: auto; }
}