/* ============================================
   Shuttlebugs — Premium Athletic Tokens
   ============================================ */

:root {
  /* Court & night palette */
  --color-bg-primary: #070b12;
  --color-bg-secondary: #0d121c;
  --color-bg-tertiary: #121a28;
  --color-bg-surface: #151f30;
  --color-bg-elevated: #1a2740;
  --color-bg-overlay: rgba(0, 0, 0, 0.65);

  /* Brand — logo blue / gold */
  --color-brand-blue: #1e5a9e;
  --color-brand-blue-bright: #2d7fd4;
  --color-brand-gold: #f5c518;
  --color-brand-gold-dim: #c9a012;

  /* Text */
  --color-text-primary: #f4f7fc;
  --color-text-secondary: #a8b4c8;
  --color-text-tertiary: #6b7a94;
  --color-text-inverse: #070b12;

  /* Borders */
  --color-border-primary: rgba(255, 255, 255, 0.12);
  --color-border-secondary: rgba(255, 255, 255, 0.06);
  --color-border-focus: var(--color-brand-gold);

  /* Accents */
  --color-accent-primary: var(--color-brand-blue-bright);
  --color-accent-primary-hover: #4a9ae8;
  --color-accent-primary-active: #6bb0f0;
  --color-accent-primary-light: rgba(45, 127, 212, 0.12);

  --color-accent-secondary: var(--color-brand-gold);
  --color-accent-secondary-hover: #ffd84a;
  --color-accent-secondary-light: rgba(245, 197, 24, 0.1);

  /* Status */
  --color-status-open: #3dd68c;
  --color-status-success: #3dd68c;
  --color-status-warning: #f5c518;
  --color-status-error: #f06565;

  --color-focus-ring: rgba(245, 197, 24, 0.45);

  /* Spacing */
  --space-0: 0;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-7: 2rem;
  --space-8: 2.5rem;
  --space-9: 3rem;
  --space-10: 4rem;
  --space-11: 5rem;
  --space-12: 7rem;

  /* Typography */
  --font-family-body: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-family-display: 'Syne', 'DM Sans', sans-serif;

  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3.25rem;
  --font-size-6xl: clamp(2.75rem, 6vw, 4.5rem);

  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-black: 800;

  --line-height-tight: 1.1;
  --line-height-snug: 1.35;
  --line-height-normal: 1.55;
  --line-height-relaxed: 1.75;

  --letter-spacing-tight: -0.03em;
  --letter-spacing-normal: 0;
  --letter-spacing-wide: 0.08em;
  --letter-spacing-wider: 0.14em;

  /* Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows & glow */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.55);
  --shadow-glow-blue: 0 0 40px rgba(45, 127, 212, 0.25);
  --shadow-glow-gold: 0 0 32px rgba(245, 197, 24, 0.2);

  /* Motion */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 280ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);

  --header-height: 4.5rem;
}

/* Optional light mode */
[data-theme="light"] {
  --color-bg-primary: #f6f8fb;
  --color-bg-secondary: #eef2f8;
  --color-bg-tertiary: #e4eaf4;
  --color-bg-surface: #ffffff;
  --color-bg-elevated: #ffffff;
  --color-bg-overlay: rgba(7, 11, 18, 0.5);

  --color-text-primary: #0d121c;
  --color-text-secondary: #3d4d66;
  --color-text-tertiary: #6b7a94;
  --color-text-inverse: #ffffff;

  --color-border-primary: rgba(13, 18, 28, 0.14);
  --color-border-secondary: rgba(13, 18, 28, 0.08);

  --shadow-sm: 0 2px 8px rgba(13, 18, 28, 0.08);
  --shadow-md: 0 8px 24px rgba(13, 18, 28, 0.1);
  --shadow-lg: 0 16px 48px rgba(13, 18, 28, 0.12);
  --shadow-glow-blue: 0 0 40px rgba(45, 127, 212, 0.15);
  --shadow-glow-gold: 0 0 32px rgba(245, 197, 24, 0.15);
}