/* Hallmark tokens · theme: Coral (modern-minimal) · axes: light paper / grotesk-sans display / warm accent (hue 40) */
:root {
  /* colour */
  --color-paper:    oklch(97% 0.006 40);
  --color-paper-2:  oklch(94.5% 0.009 40);
  --color-rule:     oklch(87% 0.009 40);
  --color-neutral:  oklch(46% 0.012 40);
  --color-muted:    oklch(40% 0.014 40);
  --color-ink:      oklch(22% 0.016 40);
  --color-paper-muted: oklch(80% 0.012 40); /* muted text on ink surfaces */
  --color-accent:   oklch(56% 0.185 32);
  --color-focus:    oklch(52% 0.19 32);

  /* 60-30-10: 60%=paper系(hue40) / 30%=rose系サブ面(accentと同系の低彩度) / 10%=accent
     単一の暖色ファミリーに統一(studied-DNAのパステル面は同系色で再構成) */
  --color-tint-rose:   oklch(95.5% 0.028 28);
  --color-tint-rose-2: oklch(93% 0.042 28);
  --color-ghost:       oklch(90.5% 0.01 40); /* decorative marquee text */

  /* type */
  --font-display: "Zen Kaku Gothic New", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  --font-body:    "Zen Kaku Gothic New", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  --font-outlier: "Geist", "Helvetica Neue", sans-serif; /* wordmark + hero figure only */

  --text-sm:   0.8rem;
  --text-base: 1rem;
  --text-md:   1.25rem;
  --text-lg:   1.5625rem;
  --text-xl:   1.9531rem;
  --text-2xl:  2.4414rem;
  --text-display: clamp(2.75rem, 5vw + 1rem, 5.25rem);
  --text-figure:  clamp(5.5rem, 16vw, 11rem); /* single-glyph hero stat, ≤12ch exception */

  /* space (4pt) */
  --space-3xs: 0.125rem;
  --space-2xs: 0.25rem;
  --space-xs:  0.5rem;
  --space-sm:  0.75rem;
  --space-md:  1rem;
  --space-lg:  1.5rem;
  --space-xl:  2.5rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  --space-4xl: 9rem;

  /* motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in:  cubic-bezier(0.7, 0, 0.84, 0);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-micro: 120ms;
  --dur-short: 220ms;
  --dur-long:  420ms;

  /* structure */
  --rule-hair: 1px;
  --radius-pill: 999px;
  --radius-card: 20px;
  --radius-input: 10px;
  --shadow-whisper: 0 1px 2px oklch(20% 0.01 40 / 0.05);
  --shadow-soft: 0 12px 32px -16px oklch(30% 0.02 40 / 0.18);
  --page-max: 68rem;
  --page-gutter: clamp(1rem, 4vw, 2.5rem);

  /* z scale */
  --z-base: 1;
  --z-raised: 10;
  --z-sticky: 200;
}