:root {
  /* === Colors === */
  --color-bg-primary: #0a0e17;
  --color-bg-secondary: #111827;
  --color-bg-tertiary: #1a2332;
  --color-bg-elevated: #1e293b;

  --color-accent-primary: #00b4d8;
  --color-accent-secondary: #0077b6;
  --color-accent-glow: #00e5ff;
  --color-accent-dim: rgba(0, 180, 216, 0.15);

  --color-text-primary: #e2e8f0;
  --color-text-secondary: #94a3b8;
  --color-text-heading: #f1f5f9;
  --color-text-accent: #00b4d8;

  --color-metallic-light: #c0c8d4;
  --color-metallic-dark: #64748b;

  --color-border: rgba(148, 163, 184, 0.15);
  --color-border-accent: rgba(0, 180, 216, 0.3);

  --color-success: #22c55e;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  --color-info: #3b82f6;

  /* Rank colors */
  --color-rank-gm: #ffd700;
  --color-rank-techlead: #059669;
  --color-rank-raidlead: #ef4444;
  --color-rank-officer: #c084fc;
  --color-rank-recruitment: #f97316;
  --color-rank-veteran: #60a5fa;
  --color-rank-member: #34d399;
  --color-rank-recruit: #94a3b8;

  /* Event type colors */
  --color-event-raid: #ef4444;
  --color-event-dungeon: #f59e0b;
  --color-event-pvp: #c084fc;
  --color-event-social: #22c55e;

  /* === Typography === */
  --font-heading: 'Cinzel', 'Palatino', serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;
  --font-mono: 'Fira Code', monospace;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;

  /* === Spacing === */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* === Layout === */
  --container-max: 1200px;
  --container-wide: 1400px;
  --header-height: 72px;
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 12px;
  --border-radius-xl: 16px;
  --border-radius-full: 9999px;

  /* === Effects === */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 15px rgba(0, 180, 216, 0.3);
  --shadow-glow-strong: 0 0 30px rgba(0, 180, 216, 0.5);

  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* === Z-index === */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-overlay: 300;
  --z-modal: 400;
  --z-toast: 500;
}