/* 刻限譜 — design tokens. Palette: kusunda kinari (dusted unbleached washi) x bengara (iron-oxide red-brown).
   Measured separation from site33 THE LAST WEEK. (newsprint cream #f4efe3, HSL H42 S44 L92):
   this paper is #cec5b6 (HSL H38 S20 L76) — same hue decade, but 16pt darker (L) and 24pt less
   saturated (S), plus a washi fiber-fleck texture (not newsprint grain). See build report for the
   sampled-pixel verification method. */
:root {
  /* -- color: paper / ink (dusted kinari washi) -- */
  --color-paper:        #cec5b6;
  --color-paper-2:      #bfb3a0;
  --color-paper-3:      #ad9d87;
  --color-paper-deepest:#8f7d68;
  --color-ink:          #2a221c;
  --color-ink-soft:     #55483d;
  --color-ink-faint:    #6f6152;

  /* -- color: bengara (iron-oxide red-brown, low-sat, mid-low lightness) -- */
  --color-bengara:        #8a3f2c;
  --color-bengara-deep:   #6e2f21;
  --color-bengara-bright: #b0523a;
  --color-bengara-dim:    #e3cabf;
  --color-bengara-ink:    #fbf3ee;

  --color-focus: #b0523a;

  /* -- fonts (2+1 discipline: display serif / body sans / numeric mono for jikoku・kg・L・fun only) -- */
  --font-display: "Shippori Mincho", "Noto Serif JP", serif;
  --font-body: "Noto Sans JP", "Hiragino Sans", sans-serif;
  --font-mono: "Space Mono", ui-monospace, monospace;

  /* -- type scale -- */
  --text-display:   clamp(2.3rem, 1.1rem + 4.4vw, 3.9rem);
  --text-display-s: clamp(1.9rem, 1.2rem + 2.6vw, 2.9rem);
  --text-4xl: 2.3rem;
  --text-2xl: 1.5rem;
  --text-xl: 1.2rem;
  --text-lg: 1.06rem;
  --text-base: 1rem;
  --text-sm: 0.875rem;
  --text-xs: 0.75rem;

  /* -- 4pt spacing scale -- */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;

  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 8px;

  --ease-out: cubic-bezier(.16,1,.3,1);
  --dur-fast: 120ms;
  --dur-base: 220ms;
  --dur-slow: 420ms;

  --rule-hair: 1px;
  --rule-thick: 2px;

  /* Locked single-palette identity, light ground on every page. Do NOT add an
     unconditional prefers-color-scheme:dark override block (site38/42 lesson). */
  color-scheme: light;
}