/* ==========================================================================
   QuantPits-Arena: Design System Tokens & Variables
   ========================================================================== */

:root {
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, Monaco, monospace;

  /* Theme: Dark Mode (Default) */
  --bg-base: #0a0d14;
  --bg-subtle: #0f1422;
  --bg-surface: #141b2d;
  --bg-surface-elevated: #1a233a;
  --bg-glass: rgba(20, 27, 45, 0.75);
  --bg-glass-elevated: rgba(26, 35, 58, 0.85);

  --border-subtle: rgba(255, 255, 255, 0.07);
  --border-medium: rgba(255, 255, 255, 0.14);
  --border-bright: rgba(255, 255, 255, 0.25);
  --border-accent: rgba(56, 189, 248, 0.4);

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-tertiary: #64748b;
  --text-muted: #475569;
  --text-inverse: #090d16;

  /* Semantic Brand & Accents */
  --brand-cyan: #38bdf8;
  --brand-blue: #3b82f6;
  --brand-purple: #a855f7;
  --brand-pink: #ec4899;

  --accent-positive: #10b981;
  --accent-positive-bg: rgba(16, 185, 129, 0.12);
  --accent-positive-border: rgba(16, 185, 129, 0.3);

  --accent-negative: #f43f5e;
  --accent-negative-bg: rgba(244, 63, 94, 0.12);
  --accent-negative-border: rgba(244, 63, 94, 0.3);

  --accent-warning: #f59e0b;
  --accent-warning-bg: rgba(245, 158, 11, 0.12);
  --accent-warning-border: rgba(245, 158, 11, 0.3);

  --accent-cyan: #06b6d4;
  --accent-cyan-bg: rgba(6, 182, 212, 0.12);

  /* Shadows & Glow */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5), 0 2px 4px -2px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.6), 0 4px 6px -4px rgba(0, 0, 0, 0.6);
  --shadow-glow-cyan: 0 0 25px rgba(56, 189, 248, 0.25);
  --shadow-glow-emerald: 0 0 25px rgba(16, 185, 129, 0.25);
  --shadow-glow-purple: 0 0 25px rgba(168, 85, 247, 0.25);

  /* Radii */
  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Theme Overrides */
[data-theme="light"] {
  --bg-base: #f8fafc;
  --bg-subtle: #f1f5f9;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #ffffff;
  --bg-glass: rgba(255, 255, 255, 0.85);
  --bg-glass-elevated: rgba(255, 255, 255, 0.95);

  --border-subtle: rgba(0, 0, 0, 0.06);
  --border-medium: rgba(0, 0, 0, 0.12);
  --border-bright: rgba(0, 0, 0, 0.25);
  --border-accent: rgba(2, 132, 199, 0.4);

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-tertiary: #64748b;
  --text-muted: #94a3b8;
  --text-inverse: #f8fafc;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.06);
  --shadow-glow-cyan: 0 0 20px rgba(2, 132, 199, 0.15);
  --shadow-glow-emerald: 0 0 20px rgba(16, 185, 129, 0.15);
  --shadow-glow-purple: 0 0 20px rgba(168, 85, 247, 0.15);
}