.grpo-gdpo-root {
  --bg-primary: #ffffff;
  --bg-secondary: #f5f5f5;
  --bg-hover: #e8e8e8;
  --text-primary: #1a1a1a;
  --text-secondary: #666666;
  --border-color: #ddd;
  --accent-color: #4a9eff;
  --diff-positive: #22c55e;
  --diff-negative: #ef4444;
  --cell-active: #3b82f6;
  --cell-inactive: #94a3b8;

  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  padding: 1rem;
  background: var(--bg-primary);
  color: var(--text-primary);
  border-radius: 8px;
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
  .grpo-gdpo-root {
    --bg-primary: #1e1e1e;
    --bg-secondary: #2d2d2d;
    --bg-hover: #3d3d3d;
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --border-color: #444;
    --accent-color: #60a5fa;
    --diff-positive: #4ade80;
    --diff-negative: #f87171;
    --cell-active: #60a5fa;
    --cell-inactive: #64748b;
  }
}

/* Marimo dark mode class support */
.dark .grpo-gdpo-root,
[data-theme="dark"] .grpo-gdpo-root {
  --bg-primary: #1e1e1e;
  --bg-secondary: #2d2d2d;
  --bg-hover: #3d3d3d;
  --text-primary: #e0e0e0;
  --text-secondary: #a0a0a0;
  --border-color: #444;
  --accent-color: #60a5fa;
  --diff-positive: #4ade80;
  --diff-negative: #f87171;
  --cell-active: #60a5fa;
  --cell-inactive: #64748b;
}

.grpo-gdpo-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.grpo-gdpo-table th,
.grpo-gdpo-table td {
  padding: 0.6rem 0.8rem;
  text-align: center;
  border: 1px solid var(--border-color);
}

.grpo-gdpo-table th {
  background: var(--bg-secondary);
  font-weight: 600;
  color: var(--text-primary);
}

.grpo-gdpo-table tbody tr:hover {
  background: var(--bg-hover);
}

.rollout-label {
  font-weight: 500;
  text-align: left !important;
  color: var(--text-secondary);
}

.reward-cell {
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.15s ease;
  user-select: none;
}

.reward-cell:hover {
  background: var(--bg-hover);
  transform: scale(1.05);
}

.reward-cell[data-value="1"] {
  color: var(--cell-active);
}

.reward-cell[data-value="0"] {
  color: var(--cell-inactive);
}

.computed-cell {
  font-family: "SF Mono", "Consolas", monospace;
  color: var(--text-secondary);
}

.diff-cell {
  font-family: "SF Mono", "Consolas", monospace;
  font-weight: 500;
}

.diff-cell.has-diff {
  color: var(--diff-positive);
  background: rgba(34, 197, 94, 0.1);
}

.button-row {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.action-btn {
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.15s ease;
}

.action-btn:hover:not(:disabled) {
  background: var(--bg-hover);
  border-color: var(--accent-color);
}

.action-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}