/* ============================================================
   DESIGN TOKENS — Andy Cheung Portfolio
   Palette: Dark surfaces · Electric Indigo accent · Precision grid
   ============================================================ */

:root,
[data-theme='dark'] {
  /* Surfaces */
  --color-bg:              #0a0a0f;
  --color-surface:         #111118;
  --color-surface-2:       #18181f;
  --color-surface-offset:  #1c1c25;
  --color-divider:         #232330;
  --color-border:          #2a2a3a;

  /* Text */
  --color-text:            #e8e8f0;
  --color-text-muted:      #888898;
  --color-text-faint:      #45455a;
  --color-text-inverse:    #0a0a0f;

  /* Primary — Electric Indigo */
  --color-primary:         #7c6dfc;
  --color-primary-hover:   #9a8dfd;
  --color-primary-active:  #5a4de0;
  --color-primary-glow:    rgba(124, 109, 252, 0.18);
  --color-primary-subtle:  rgba(124, 109, 252, 0.08);

  /* Accent — Electric Cyan (for tags / highlights) */
  --color-accent:          #22d3ee;
  --color-accent-subtle:   rgba(34, 211, 238, 0.08);

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.5);
  --shadow-md:  0 4px 16px rgba(0,0,0,0.6);
  --shadow-lg:  0 16px 48px rgba(0,0,0,0.7);
  --glow-primary: 0 0 32px rgba(124, 109, 252, 0.25);

  /* Radius */
  --radius-sm:   0.25rem;
  --radius-md:   0.5rem;
  --radius-lg:   0.875rem;
  --radius-xl:   1.25rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast:        150ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-interactive: 220ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow:        400ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Type scale */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);
  --text-hero: clamp(3rem,     0.5rem  + 7vw,    8rem);

  /* 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;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Content widths */
  --content-narrow:  640px;
  --content-default: 960px;
  --content-wide:    1200px;

  /* Fonts */
  --font-display: 'Cabinet Grotesk', 'Helvetica Neue', sans-serif;
  --font-body:    'Satoshi', 'Inter', sans-serif;
  --font-mono:    'JetBrains Mono', 'Fira Code', monospace;
}

[data-theme='light'] {
  --color-bg:              #f4f4f8;
  --color-surface:         #ffffff;
  --color-surface-2:       #f8f8fc;
  --color-surface-offset:  #ededf4;
  --color-divider:         #e0e0ec;
  --color-border:          #d0d0e0;
  --color-text:            #12121a;
  --color-text-muted:      #5a5a70;
  --color-text-faint:      #a0a0b8;
  --color-text-inverse:    #f4f4f8;
  --color-primary:         #5a4de0;
  --color-primary-hover:   #7c6dfc;
  --color-primary-active:  #3d31c0;
  --color-primary-glow:    rgba(90, 77, 224, 0.12);
  --color-primary-subtle:  rgba(90, 77, 224, 0.06);
  --color-accent:          #0ea5c9;
  --color-accent-subtle:   rgba(14, 165, 201, 0.08);
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.08);
  --shadow-md:  0 4px 16px rgba(0,0,0,0.1);
  --shadow-lg:  0 16px 48px rgba(0,0,0,0.12);
  --glow-primary: 0 0 32px rgba(90, 77, 224, 0.15);
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    --color-bg:              #f4f4f8;
    --color-surface:         #ffffff;
    --color-surface-2:       #f8f8fc;
    --color-surface-offset:  #ededf4;
    --color-divider:         #e0e0ec;
    --color-border:          #d0d0e0;
    --color-text:            #12121a;
    --color-text-muted:      #5a5a70;
    --color-text-faint:      #a0a0b8;
    --color-text-inverse:    #f4f4f8;
    --color-primary:         #5a4de0;
    --color-primary-hover:   #7c6dfc;
    --color-primary-active:  #3d31c0;
    --color-primary-glow:    rgba(90, 77, 224, 0.12);
    --color-primary-subtle:  rgba(90, 77, 224, 0.06);
    --color-accent:          #0ea5c9;
    --color-accent-subtle:   rgba(14, 165, 201, 0.08);
    --shadow-sm:  0 1px 3px rgba(0,0,0,0.08);
    --shadow-md:  0 4px 16px rgba(0,0,0,0.1);
    --shadow-lg:  0 16px 48px rgba(0,0,0,0.12);
    --glow-primary: 0 0 32px rgba(90, 77, 224, 0.15);
  }
}