/**
 * EliteBulletin Design System — Modern, Minimal & Lightweight
 * Inspired by modern interface standards (Linear, Vercel, Apple)
 */

:root {
  color-scheme: light;

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  /* Sizing & Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;

  /* Radius */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  /* Transitions (explicit, never transition: all) */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --dur-fast: 150ms;
  --dur-normal: 220ms;

  /* Light Theme (Default) */
  --bg-page: #fbfbfd;
  --bg-surface: #ffffff;
  --bg-subtle: #f4f4f7;
  --bg-hover: #ebebee;
  --bg-active: #e2e2e7;

  --text-primary: #111827;
  --text-secondary: #4b5563;
  --text-muted: #6b7280;
  --text-inverse: #ffffff;

  --border-subtle: rgba(0, 0, 0, 0.07);
  --border-medium: rgba(0, 0, 0, 0.12);
  --border-strong: rgba(0, 0, 0, 0.22);

  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-subtle: #eff6ff;
  --accent-border: #bfdbfe;

  --success: #059669;
  --success-subtle: #ecfdf5;
  --success-border: #a7f3d0;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 12px 28px rgba(0, 0, 0, 0.08);
}

/* Dark Theme */
[data-theme="dark"] {
  color-scheme: dark;

  --bg-page: #0a0d14;
  --bg-surface: #111520;
  --bg-subtle: #171d2b;
  --bg-hover: #1f2739;
  --bg-active: #273147;

  --text-primary: #f9fafb;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  --text-inverse: #0a0d14;

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-medium: rgba(255, 255, 255, 0.14);
  --border-strong: rgba(255, 255, 255, 0.24);

  --accent: #3b82f6;
  --accent-hover: #60a5fa;
  --accent-subtle: rgba(59, 130, 246, 0.14);
  --accent-border: rgba(59, 130, 246, 0.32);

  --success: #10b981;
  --success-subtle: rgba(16, 185, 129, 0.12);
  --success-border: rgba(16, 185, 129, 0.28);

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 12px 28px rgba(0, 0, 0, 0.5);
}