/* [data-theme="dark"]: Primary Blue는 유지하고 배경/텍스트 명도만 반전 */
html[data-theme="dark"] {
  color-scheme: dark;

  --color-primary: #3B82F6;
  --color-primary-hover: #60A5FA;
  --color-primary-soft: #172554;
  --color-background: #0F172A;
  --color-card: #1E293B;
  --color-card-alt: #172236;
  --color-border: #334155;
  --color-text-primary: #F1F5F9;
  --color-text-secondary: #CBD5E1;
  --color-text-muted: #94A3B8;
  --color-success: #4ADE80;
  --color-success-soft: #0F2A1B;
  --color-error: #F87171;
  --color-error-soft: #3B1616;

  --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.35);
}

.theme-toggle .icon-moon { display: none; }
html[data-theme="dark"] .theme-toggle .icon-sun { display: none; }
html[data-theme="dark"] .theme-toggle .icon-moon { display: block; }