:root {
  --bg: #ffffff;
  --bg-secondary: #f5f5f5;
  --bg-tertiary: #ebebeb;
  --text: #1a1a1a;
  --text-muted: #666666;
  --text-faint: #999999;
  --border: #e0e0e0;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --accent-fg: #ffffff;
  --accent-subtle: #eff6ff;
  --danger: #ef4444;
  --danger-hover: #dc2626;
  --danger-subtle: #fef2f2;
  --success: #22c55e;
  --success-subtle: #f0fdf4;
  --warn: #f59e0b;
  --warn-subtle: #fffbeb;
  --card-bg: #ffffff;
  --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 0 0 1px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1), 0 0 0 1px rgba(0,0,0,0.05);
  --radius: 8px;
  --radius-sm: 5px;
  --radius-lg: 12px;
  --sidebar-width: 260px;
  --header-height: 56px;
  --transition: 150ms ease;
}

[data-theme="dark"] {
  --bg: #0f0f0f;
  --bg-secondary: #1a1a1a;
  --bg-tertiary: #242424;
  --text: #f0f0f0;
  --text-muted: #999999;
  --text-faint: #666666;
  --border: #2a2a2a;
  --accent: #60a5fa;
  --accent-hover: #93c5fd;
  --accent-fg: #0f172a;
  --accent-subtle: #1e3a5f;
  --danger: #f87171;
  --danger-hover: #fca5a5;
  --danger-subtle: #2d1515;
  --success: #4ade80;
  --success-subtle: #14291e;
  --warn: #fbbf24;
  --warn-subtle: #29200a;
  --card-bg: #1a1a1a;
  --shadow: 0 1px 3px rgba(0,0,0,0.4), 0 0 0 1px rgba(255,255,255,0.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.04);
}