/* ═══════════════════════════════════════════
   ZUURSTOFZONE — Design Tokens
   Kleurpalet: zuurstof-blauwgroen, warm off-white
   ═══════════════════════════════════════════ */

:root,
[data-theme='light'] {
  /* 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,    7rem);

  /* Spacing (4px base) */
  --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;

  /* Surfaces — warm off-white */
  --color-bg:              #F5F4F0;
  --color-surface:         #F8F7F4;
  --color-surface-2:       #FAFAF8;
  --color-surface-offset:  #EDECEA;
  --color-divider:         #DDD9D4;
  --color-border:          #D0CCC7;

  /* Text */
  --color-text:        #1E1D1A;
  --color-text-muted:  #6B6966;
  --color-text-faint:  #B0ADA9;
  --color-text-inverse:#F5F4F0;

  /* Primary — zuurstof-aqua */
  --color-primary:           #0A6E72;
  --color-primary-hover:     #085860;
  --color-primary-active:    #054247;
  --color-primary-highlight: #C8DCDA;
  --color-primary-subtle:    #E4F0EF;

  /* Accent — diep marineblauw (voor protocol-headers) */
  --color-accent:            #1B3A5C;
  --color-accent-hover:      #142D48;
  --color-accent-highlight:  #C6D3E0;

  /* Neutrals for cards */
  --color-card-bg: #FFFFFF;

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

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(20,18,15,0.06);
  --shadow-md: 0 4px 16px rgba(20,18,15,0.08);
  --shadow-lg: 0 12px 40px rgba(20,18,15,0.12);

  /* Transitions */
  --transition: 200ms cubic-bezier(0.16, 1, 0.3, 1);

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

  /* Fonts */
  --font-display: 'Instrument Serif', Georgia, serif;
  --font-body:    'Switzer', 'Helvetica Neue', sans-serif;
}

[data-theme='dark'] {
  --color-bg:              #131210;
  --color-surface:         #181715;
  --color-surface-2:       #1D1C1A;
  --color-surface-offset:  #1A1918;
  --color-divider:         #252422;
  --color-border:          #302E2C;
  --color-text:            #CCCAC6;
  --color-text-muted:      #767471;
  --color-text-faint:      #504E4C;
  --color-text-inverse:    #1E1D1A;
  --color-primary:         #4A9FA6;
  --color-primary-hover:   #2D8A92;
  --color-primary-active:  #1A6E75;
  --color-primary-highlight:#1E3333;
  --color-primary-subtle:  #172828;
  --color-accent:          #6A9DC4;
  --color-accent-hover:    #4E87B0;
  --color-accent-highlight:#1A2838;
  --color-card-bg:         #1D1C1A;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.25);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.35);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.5);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg:              #131210;
    --color-surface:         #181715;
    --color-surface-2:       #1D1C1A;
    --color-surface-offset:  #1A1918;
    --color-divider:         #252422;
    --color-border:          #302E2C;
    --color-text:            #CCCAC6;
    --color-text-muted:      #767471;
    --color-text-faint:      #504E4C;
    --color-text-inverse:    #1E1D1A;
    --color-primary:         #4A9FA6;
    --color-primary-hover:   #2D8A92;
    --color-primary-active:  #1A6E75;
    --color-primary-highlight:#1E3333;
    --color-primary-subtle:  #172828;
    --color-accent:          #6A9DC4;
    --color-accent-hover:    #4E87B0;
    --color-accent-highlight:#1A2838;
    --color-card-bg:         #1D1C1A;
  }
}