:root {
  color-scheme: light;
  --bg: #f2efe7;
  --panel: rgba(255, 251, 245, 0.92);
  --panel-strong: #fff8f0;
  --border: rgba(67, 52, 34, 0.16);
  --text: #2f2416;
  --muted: #776655;
  --accent: #c74f2f;
  --accent-strong: #a23214;
  --accent-soft: rgba(199, 79, 47, 0.12);
  --canvas: #f8f1e4;
  --shadow: 0 18px 40px rgba(78, 54, 18, 0.12);
  --radius: 18px;
  --mono: "SFMono-Regular", "SF Mono", Monaco, Consolas, "Liberation Mono", monospace;
  --sans: "Avenir Next", Avenir, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at top left, rgba(199, 79, 47, 0.16), transparent 28%),
    radial-gradient(circle at bottom right, rgba(59, 108, 124, 0.14), transparent 30%),
    var(--bg);
  color: var(--text);
  font-family: var(--sans);
}

body {
  min-height: 100vh;
}

button,
input,
select {
  font: inherit;
}

button {
  border: 1px solid rgba(67, 52, 34, 0.18);
  border-radius: 999px;
  background: var(--panel-strong);
  color: var(--text);
  cursor: pointer;
  padding: 0.65rem 1rem;
  transition:
    transform 120ms ease,
    background 120ms ease,
    border-color 120ms ease;
}

button:hover {
  transform: translateY(-1px);
  border-color: rgba(67, 52, 34, 0.3);
}

button[aria-pressed="true"] {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff8f4;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
  transform: none;
}

.app-shell {
  display: grid;
  gap: 0.75rem;
  min-height: 100vh;
  padding: 0.75rem;
}

.sidebar,
.main-column {
  display: grid;
  gap: 1rem;
}

.sidebar {
  align-content: start;
}

.main-column {
  align-content: start;
  min-width: 0;
}

.main-column {
  grid-template-rows: auto auto minmax(0, 1fr);
}

.panel {
  background: var(--panel);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.panel-header,
.controls-panel,
.grain-panel,
.details-panel,
.list-panel,
.scatter-panel,
.preview-panel,
.descriptor-panel {
  padding: 0.72rem 0.85rem;
}

.eyebrow {
  margin: 0 0 0.25rem;
  color: var(--accent-strong);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 1.7rem;
  line-height: 1;
  margin-bottom: 0.5rem;
}

h2 {
  font-size: 1rem;
}

#status-line,
.hint {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.35;
}

.control-grid {
  display: grid;
  gap: 0.75rem;
  margin-top: 0.9rem;
}

.range-row {
  align-items: center;
  display: grid;
  gap: 0.35rem 0.65rem;
  grid-template-columns: minmax(86px, auto) minmax(0, 1fr) 72px;
}

.range-row span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
}

.range-row input {
  accent-color: var(--accent);
  min-width: 0;
}

.range-row output {
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.78rem;
  text-align: right;
}

.field-row {
  display: grid;
  gap: 0.45rem;
  margin-top: 0.85rem;
}

.field-row.compact {
  margin-top: 0;
}

.field-row span {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
}

.field-row select {
  appearance: none;
  background: var(--panel-strong);
  border: 1px solid rgba(67, 52, 34, 0.18);
  border-radius: 12px;
  color: var(--text);
  cursor: pointer;
  padding: 0.65rem 0.8rem;
  width: 100%;
}

.axis-grid {
  display: grid;
  gap: 0.7rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-bottom: 0.8rem;
}

.summary-grid {
  display: grid;
  gap: 0.55rem 0.8rem;
  grid-template-columns: auto 1fr;
  margin-top: 0.8rem;
}

.summary-grid dt {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
}

.summary-grid dd {
  margin: 0;
  min-width: 0;
  overflow-wrap: anywhere;
}

.unit-list {
  display: grid;
  gap: 0.55rem;
  list-style: decimal;
  margin: 0.7rem 0 0;
  padding-left: 1.3rem;
}

.unit-list li {
  border-radius: 12px;
  padding: 0.2rem 0.25rem;
}

.unit-list button {
  border-radius: 12px;
  padding: 0.55rem 0.75rem;
  text-align: left;
  width: 100%;
}

.panel-heading {
  align-items: end;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

#scatter-canvas {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.45), rgba(242, 231, 210, 0.65)),
    var(--canvas);
  border: 1px solid rgba(67, 52, 34, 0.12);
  border-radius: calc(var(--radius) - 6px);
  display: block;
  width: 100%;
}

.video-canvas-stack {
  --video-aspect-number: 1.7777778;
  --video-aspect-ratio: 16 / 9;
  aspect-ratio: var(--video-aspect-ratio);
  background: #000000;
  border: 1px solid rgba(67, 52, 34, 0.12);
  border-radius: calc(var(--radius) - 6px);
  display: block;
  height: min(52vh, 680px);
  margin: 0 auto;
  max-width: 100%;
  overflow: hidden;
  position: relative;
  width: min(100%, calc(min(52vh, 680px) * var(--video-aspect-number)));
}

.video-layer {
  background: transparent;
  display: block;
  height: 100%;
  inset: 0;
  position: absolute;
  width: 100%;
}

#video-fade-canvas {
  opacity: 0;
  pointer-events: none;
  z-index: 2;
}

#video-canvas {
  z-index: 1;
}

#scatter-canvas {
  aspect-ratio: 16 / 5;
  max-height: 26vh;
  cursor: crosshair;
  touch-action: none;
}

.descriptor-tables {
  display: grid;
  gap: 0.9rem;
}

.descriptor-group {
  border: 1px solid rgba(67, 52, 34, 0.1);
  border-radius: 14px;
  overflow: hidden;
}

.descriptor-group header {
  background: var(--accent-soft);
  padding: 0.7rem 0.85rem;
}

.descriptor-group table {
  border-collapse: collapse;
  width: 100%;
}

.descriptor-group th,
.descriptor-group td {
  border-top: 1px solid rgba(67, 52, 34, 0.08);
  padding: 0.45rem 0.7rem;
  text-align: left;
}

.descriptor-group th {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.descriptor-group td:last-child,
.descriptor-group th:last-child {
  font-family: var(--mono);
  text-align: right;
}

.descriptor-field {
  display: inline-flex;
  gap: 0.45rem;
}

.descriptor-chip {
  border: 1px solid rgba(67, 52, 34, 0.12);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.72rem;
  padding: 0.1rem 0.45rem;
}

@media (min-width: 1120px) {
  .app-shell {
    grid-template-columns: 320px minmax(0, 1fr);
  }
}

@media (min-width: 1120px) and (max-height: 820px) {
  .app-shell {
    grid-template-columns: 300px minmax(0, 1fr);
    gap: 0.6rem;
    padding: 0.6rem;
  }

  .sidebar,
  .main-column {
    gap: 0.6rem;
  }

  .panel-header,
  .controls-panel,
  .grain-panel,
  .details-panel,
  .list-panel,
  .scatter-panel,
  .preview-panel,
  .descriptor-panel {
    padding: 0.58rem 0.68rem;
  }

  h1 {
    font-size: 1.35rem;
    margin-bottom: 0.3rem;
  }

  #status-line,
  .hint {
    font-size: 0.82rem;
  }

  .control-grid {
    gap: 0.45rem;
    margin-top: 0.55rem;
  }

  .range-row {
    gap: 0.25rem 0.45rem;
    grid-template-columns: minmax(78px, auto) minmax(0, 1fr) 64px;
  }

  .field-row {
    gap: 0.25rem;
    margin-top: 0;
  }

  .field-row select {
    padding: 0.48rem 0.6rem;
  }

  .axis-grid {
    margin-bottom: 0.5rem;
  }

  .video-canvas-stack {
    height: 50vh;
    width: min(100%, calc(50vh * var(--video-aspect-number)));
  }

  #scatter-canvas {
    max-height: 23vh;
  }

  .details-panel,
  .list-panel,
  .descriptor-panel {
    display: none;
  }
}

@media (max-width: 760px) {
  .app-shell {
    padding: 0.75rem;
  }

  .range-row {
    grid-template-columns: 1fr;
  }

  .range-row output {
    text-align: left;
  }

  .axis-grid {
    grid-template-columns: 1fr;
  }

  .panel-heading {
    align-items: start;
    flex-direction: column;
  }
}