/* Gate — Unified Design System (Tailwind Gray palette)
   Single source of truth for all CSS custom properties.
   Accent: Indigo. Elevation via brightness (dark) / shadows (light). */

:root[data-theme="light"] {
  /* Backgrounds (elevation: app < surface < elevated < subtle) */
  --bg-app: #f9fafb;
  --bg-surface: #ffffff;
  --bg-elevated: #f9fafb;
  --bg-subtle: #f3f4f6;
  --bg-input: #ffffff;

  /* Text (WCAG ≥4.5:1 primary, ≥3:1 muted) */
  --text-primary: #111827;
  --text-secondary: #374151;
  --text-muted: #6b7280;
  --text-disabled: #9ca3af;

  /* Borders */
  --border: #e5e7eb;
  --border-input: #d1d5db;

  /* Accent (Indigo) */
  --color-primary: #6366f1;
  --color-primary-hover: #4f46e5;

  /* Semantic */
  --color-success: #16a34a;
  --color-danger: #dc2626;
  --color-warning: #d97706;

  /* Buttons — secondary/ghost */
  --btn-bg: #ffffff;
  --btn-border: #e5e7eb;
  --btn-hover-bg: #eef2ff;
  --btn-hover-border: #6366f1;

  /* Buttons — primary */
  --btn-primary-bg: #6366f1;
  --btn-primary-text: #ffffff;
  --btn-primary-border: #6366f1;
  --btn-primary-hover-bg: #4f46e5;
  --btn-primary-hover-border: #4f46e5;

  /* Buttons — danger (outline) */
  --btn-danger-bg: transparent;
  --btn-danger-text: #dc2626;
  --btn-danger-border: #dc2626;

  /* Badges (Soft UI) */
  --badge-success-bg: #dcfce7;
  --badge-success-text: #166534;
  --badge-neutral-bg: #f3f4f6;
  --badge-neutral-text: #374151;
  --badge-role-bg: #dbeafe;
  --badge-role-text: #1e40af;
  --badge-admin-bg: #ede9fe;
  --badge-admin-text: #5b21b6;
  --badge-warning-bg: #fef3c7;
  --badge-warning-text: #92400e;
  --badge-danger-bg: #fee2e2;
  --badge-danger-text: #991b1b;

  /* Shadows & Overlay */
  --shadow: rgba(0,0,0,0.12);
  --shadow-card: 0 1px 3px rgba(0,0,0,0.1);
  --overlay: rgba(0,0,0,0.5);
  --toggle-bg: #f3f4f6;
}

:root[data-theme="dark"] {
  /* Backgrounds — Tailwind Gray elevation (900 < 800 < 700) */
  --bg-app: #111827;
  --bg-surface: #1f2937;
  --bg-elevated: #374151;
  --bg-subtle: #293548;
  --bg-input: #1f2937;

  --text-primary: #f3f4f6;
  --text-secondary: #d1d5db;
  --text-muted: #9ca3af;
  --text-disabled: #6b7280;

  --border: #374151;
  --border-input: #4b5563;

  /* Accent (Indigo) */
  --color-primary: #818cf8;
  --color-primary-hover: #6366f1;

  --color-success: #22c55e;
  --color-danger: #ef4444;
  --color-warning: #f59e0b;

  /* Buttons — secondary/ghost (outline) */
  --btn-bg: transparent;
  --btn-border: #374151;
  --btn-hover-bg: #374151;
  --btn-hover-border: #818cf8;

  /* Buttons — primary (outline in dark) */
  --btn-primary-bg: transparent;
  --btn-primary-text: #818cf8;
  --btn-primary-border: #818cf8;
  --btn-primary-hover-bg: rgba(99,102,241,0.1);
  --btn-primary-hover-border: #6366f1;

  /* Buttons — danger (outline) */
  --btn-danger-bg: transparent;
  --btn-danger-text: #ef4444;
  --btn-danger-border: #ef4444;

  /* Badges (Soft UI) */
  --badge-success-bg: #064e3b;
  --badge-success-text: #4ade80;
  --badge-neutral-bg: #1f2937;
  --badge-neutral-text: #9ca3af;
  --badge-role-bg: #1e3a5f;
  --badge-role-text: #93c5fd;
  --badge-admin-bg: #3b1e5f;
  --badge-admin-text: #c4b5fd;
  --badge-warning-bg: #451a03;
  --badge-warning-text: #fb923c;
  --badge-danger-bg: #450a0a;
  --badge-danger-text: #f87171;

  /* Shadows — none in dark (elevation via brightness) */
  --shadow: rgba(0,0,0,0);
  --shadow-card: none;
  --overlay: rgba(0,0,0,0.7);
  --toggle-bg: #374151;
}