/* Design Tokens — Luna AI */
:root {
  /* Cores */
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-tertiary: #1a1a24;
  --bg-card: rgba(18, 18, 26, 0.95);

  --color-primary: #667eea;
  --color-secondary: #764ba2;
  --color-accent: #00ff88;
  --color-warning: #ffcc00;
  --color-error: #ff6b6b;
  --color-text: #e4e4e7;
  --color-text-muted: #9ca3af;
  --color-border: rgba(102, 126, 234, 0.15);

  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-glow: radial-gradient(circle, rgba(102, 126, 234, 0.3) 0%, transparent 70%);

  /* Tipografia */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;
  --spacing-4xl: 96px;

  /* Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-glow: 0 0 30px rgba(102, 126, 234, 0.15);
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* Layout */
  --max-width: 1200px;
  --navbar-height: 72px;
}