:root {
  color-scheme: light dark;
  --pde-bg: #f8fafc;
  --pde-text: #0f172a;
  --pde-subtext: #334155;
  --pde-panel-bg: #ffffff;
  --pde-panel-border: #cbd5e1;
  --pde-canvas-bg: #0b1020;
  --pde-canvas-border: #475569;
  --pde-input-bg: #ffffff;
  --pde-input-border: #94a3b8;
  --pde-button-bg: #e2e8f0;
  --pde-button-hover: #cbd5e1;
}

@media (prefers-color-scheme: dark) {
  :root {
    --pde-bg: #020617;
    --pde-text: #e2e8f0;
    --pde-subtext: #cbd5e1;
    --pde-panel-bg: #111827;
    --pde-panel-border: #1f2937;
    --pde-canvas-bg: #020617;
    --pde-canvas-border: #334155;
    --pde-input-bg: #0f172a;
    --pde-input-border: #475569;
    --pde-button-bg: #1e293b;
    --pde-button-hover: #334155;
  }
}

body {
  margin: 0;
  background: var(--pde-bg);
  color: var(--pde-text);
}

.pde-grid-container {
  max-width: 1260px;
  margin: 0 auto;
  padding: 20px;
  color: var(--pde-text);
  font-family:
    Inter,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
}

.pde-grid-header {
  margin-bottom: 14px;
}

.pde-grid-subtitle {
  color: var(--pde-subtext);
}

.pde-grid-main {
  display: grid;
  grid-template-columns: minmax(520px, 1.5fr) minmax(340px, 1fr);
  gap: 14px;
}

.pde-grid-canvas-panel,
.pde-grid-controls,
.pde-grid-formula-card {
  background: var(--pde-panel-bg);
  border: 1px solid var(--pde-panel-border);
  border-radius: 12px;
  padding: 14px;
}

#pdeCanvas {
  width: 100%;
  aspect-ratio: 1 / 1;
  background: var(--pde-canvas-bg);
  border: 1px solid var(--pde-canvas-border);
  border-radius: 8px;
  image-rendering: pixelated;
  display: block;
  cursor: crosshair;
}

.pde-grid-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 10px;
  font-size: 14px;
}

.pde-grid-controls h2 {
  margin-top: 0;
}

.pde-grid-control-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

.pde-grid-control-grid input,
.pde-grid-control-grid select {
  width: 100%;
  box-sizing: border-box;
  background: var(--pde-input-bg);
  color: var(--pde-text);
  border: 1px solid var(--pde-input-border);
  border-radius: 8px;
  padding: 7px;
}

.pde-grid-actions {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pde-grid-actions button {
  border: 1px solid var(--pde-input-border);
  background: var(--pde-button-bg);
  color: var(--pde-text);
  padding: 7px 12px;
  border-radius: 8px;
  cursor: pointer;
}

.pde-grid-actions button:hover {
  background: var(--pde-button-hover);
}

.pde-grid-formula-card {
  margin-top: 14px;
}

.pde-grid-formula {
  margin: 8px 0 10px;
  border-radius: 8px;
  padding: 10px;
  background: color-mix(
    in oklab,
    var(--pde-panel-bg) 86%,
    var(--pde-panel-border)
  );
  overflow-x: auto;
}

.pde-grid-tip {
  color: var(--pde-subtext);
  margin-top: 6px;
}

@media (max-width: 980px) {
  .pde-grid-main {
    grid-template-columns: 1fr;
  }
}