[data-theme="light"] {
  --color-bg-primary: #ffffff;
  --color-bg-secondary: #f8fafc;
  --color-bg-tertiary: #f1f5f9;
  --color-bg-elevated: #ffffff;
  --color-bg-overlay: rgba(0, 0, 0, 0.5);

  --color-text-primary: #0f172a;
  --color-text-secondary: #475569;
  --color-text-tertiary: #94a3b8;
  --color-text-inverse: #ffffff;

  --color-border: #e2e8f0;
  --color-border-hover: #cbd5e1;

  --color-accent: #3b82f6;
  --color-accent-hover: #2563eb;
  --color-accent-subtle: #eff6ff;

  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;

  --color-tag-bg: #f1f5f9;
  --color-tag-text: #475569;

  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-card-hover: 0 10px 20px rgba(0, 0, 0, 0.08), 0 4px 8px rgba(0, 0, 0, 0.06);
}

[data-theme="dark"] {
  --color-bg-primary: #0f172a;
  --color-bg-secondary: #1e293b;
  --color-bg-tertiary: #334155;
  --color-bg-elevated: #1e293b;
  --color-bg-overlay: rgba(0, 0, 0, 0.7);

  --color-text-primary: #f1f5f9;
  --color-text-secondary: #94a3b8;
  --color-text-tertiary: #64748b;
  --color-text-inverse: #0f172a;

  --color-border: #334155;
  --color-border-hover: #475569;

  --color-accent: #60a5fa;
  --color-accent-hover: #93c5fd;
  --color-accent-subtle: #1e3a5f;

  --color-success: #34d399;
  --color-warning: #fbbf24;
  --color-error: #f87171;

  --color-tag-bg: #334155;
  --color-tag-text: #94a3b8;

  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.3), 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-card-hover: 0 10px 20px rgba(0, 0, 0, 0.3), 0 4px 8px rgba(0, 0, 0, 0.2);
}