:root {
  color-scheme: dark;
  --bg: #0d1014;
  --panel: rgba(21, 27, 35, 0.9);
  --line: rgba(255, 255, 255, 0.08);
  --text: #edf2f7;
  --muted: #9eb0c2;
  --accent: #ffd166;
  --accent-2: #4ecdc4;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(255, 209, 102, 0.16), transparent 28%),
    radial-gradient(circle at bottom right, rgba(78, 205, 196, 0.18), transparent 30%),
    var(--bg);
  color: var(--text);
}

.layout {
  display: grid;
  gap: 24px;
  grid-template-columns: minmax(280px, 340px) minmax(0, 1fr);
  padding: 24px;
}

.panel {
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--panel);
  backdrop-filter: blur(18px);
}

.controls {
  padding: 24px;
}

.eyebrow,
.note,
.field span,
.stats dt {
  color: var(--muted);
}

.field {
  display: grid;
  gap: 8px;
  margin: 20px 0;
}

select,
button {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 14px;
  font: inherit;
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}

select option,
select optgroup {
  background: #1a1f27;
  color: #edf2f7;
}

button {
  cursor: pointer;
  background: linear-gradient(135deg, var(--accent), #ff9f1c);
  color: #141414;
  font-weight: 700;
}

button.secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  font-weight: 500;
}

.source-row {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 16px 0;
}

.toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
  cursor: pointer;
}

.toggle input {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
}

.stats-panel {
  margin-top: 20px;
  font-size: 0.9rem;
}

.stats-panel.compare-stats {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.stats-card {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.03);
}

.stats-section {
  margin-bottom: 12px;
}

.stats-section h3 {
  margin: 0 0 4px;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent-2);
}

.stats-section dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2px 12px;
  margin: 0;
}

.stats-section dt {
  margin: 0;
  color: var(--muted);
}

.stats-section dd {
  margin: 0;
  font-variant-numeric: tabular-nums;
}

.stage {
  padding: 20px;
}

.media-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr;
  max-width: 720px;
}

.media-grid.compare-mode {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  max-width: none;
}

.media-grid.compare-mode .media-source {
  grid-column: 1 / -1;
  width: 100%;
  max-width: min(100%, 960px);
  justify-self: center;
}

.media-grid.compare-mode .media-primary,
.media-grid.compare-mode .media-compare {
  min-width: 0;
}

figure {
  margin: 0;
}

figcaption {
  margin-bottom: 10px;
  font-size: 0.95rem;
  color: var(--muted);
}

video,
canvas {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: #000;
  object-fit: contain;
}

@media (max-width: 900px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .media-grid.compare-mode {
    grid-template-columns: 1fr;
  }

  .media-grid.compare-mode .media-source {
    grid-column: auto;
    max-width: none;
  }
}