/* NWA Assembly — design tokens */
:root {
  /* Brand palette: cedar + forest, with a warm sun accent */
  --c-bg:           #fbf5e9;
  --c-bg-2:         #f3e9d2;
  --c-surface:      #ffffff;
  --c-surface-2:    #fdf3df;
  --c-ink:          #1a2412;
  --c-ink-2:        #355041;
  --c-muted:        #6c7a63;
  --c-line:         #d8c8a8;

  --c-brand:        #1f6f3a;
  --c-brand-deep:   #0f3d20;
  --c-brand-bright: #2c8a4a;

  --c-accent:       #c97a18;
  --c-accent-soft:  #f0a847;
  --c-accent-cream: #fde8c8;

  --c-danger:       #a64628;
  --c-success:      #2c8a4a;
  --c-trust:        #2056a8;

  --c-cedar:        #8a5a2c;
  --c-cedar-light:  #c98a4c;
  --c-roof:         #6e2812;

  /* Typography */
  --font-serif: ui-serif, Georgia, "Iowan Old Style", "Apple Garamond", Charter, serif;
  --font-sans:  ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --font-script: "Caveat", ui-serif, cursive;
  --font-mono:  ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --t-7xl: clamp(3.6rem, 7vw, 6rem);
  --t-6xl: clamp(2.8rem, 5vw, 4.4rem);
  --t-5xl: clamp(2.2rem, 4vw, 3.4rem);
  --t-4xl: clamp(1.8rem, 3vw, 2.6rem);
  --t-3xl: clamp(1.5rem, 2.4vw, 2rem);
  --t-2xl: clamp(1.25rem, 1.8vw, 1.625rem);
  --t-xl:  1.125rem;
  --t-l:   1rem;
  --t-m:   0.9375rem;
  --t-s:   0.8125rem;
  --t-xs:  0.75rem;

  --lh-tight: 1.05;
  --lh-snug: 1.2;
  --lh-body: 1.6;
  --lh-loose: 1.85;

  --tracking-tight: -0.02em;
  --tracking-loose: 0.06em;
  --tracking-cap:   0.16em;

  /* Spacing scale (4 base) */
  --s-1: 0.25rem;
  --s-2: 0.5rem;
  --s-3: 0.75rem;
  --s-4: 1rem;
  --s-5: 1.5rem;
  --s-6: 2rem;
  --s-7: 3rem;
  --s-8: 4rem;
  --s-9: 6rem;
  --s-10: 8rem;

  /* Layout */
  --maxw: 1200px;
  --gutter: clamp(1rem, 4vw, 2.5rem);
  --radius-s: 6px;
  --radius-m: 12px;
  --radius-l: 22px;
  --radius-pill: 999px;

  /* Elevation */
  --shadow-1: 0 1px 2px rgba(15, 61, 32, 0.06), 0 2px 4px rgba(15, 61, 32, 0.04);
  --shadow-2: 0 4px 8px rgba(15, 61, 32, 0.08), 0 8px 24px rgba(15, 61, 32, 0.06);
  --shadow-3: 0 10px 24px rgba(15, 61, 32, 0.12), 0 24px 64px rgba(15, 61, 32, 0.08);
  --shadow-glow: 0 0 0 4px rgba(240, 168, 71, 0.25);

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.5, 1.6, 0.4, 1);
  --t-fast: 160ms;
  --t-base: 280ms;
  --t-slow: 520ms;

  /* Z-stack */
  --z-base: 1;
  --z-sticky: 50;
  --z-modal: 100;
  --z-toast: 200;
  --z-cursor: 999;
}

@media (prefers-color-scheme: dark) {
  :root {
    --c-bg:        #0f1310;
    --c-bg-2:      #161c17;
    --c-surface:   #1a2018;
    --c-surface-2: #21281e;
    --c-ink:       #f1ebd9;
    --c-ink-2:     #c8d2c0;
    --c-muted:     #93a08c;
    --c-line:      #2d3328;
    --c-accent-cream: #2a2317;
  }
}

@media (prefers-reduced-motion: reduce) {
  :root {
    --t-fast: 0ms;
    --t-base: 0ms;
    --t-slow: 0ms;
  }
}