:root {
  color-scheme: light;
  --color-paper: oklch(97% .012 95);
  --color-surface: oklch(94% .018 110);
  --color-ink: oklch(27% .025 145);
  --color-muted: oklch(46% .025 135);
  --color-accent: oklch(40% .075 145);
  --color-rule: oklch(80% .025 120);
  --color-focus: oklch(45% .13 145);
  --color-clear: transparent;
  --font-display: 'Cormorant Garamond', 'Shippori Mincho', serif;
  --font-japanese: 'Shippori Mincho', 'Yu Mincho', serif;
  --font-body: 'Zen Kaku Gothic New', 'Yu Gothic', sans-serif;
  --space-xs: 4px; --space-sm: 8px; --space-md: 16px; --space-lg: 24px;
  --space-xl: 32px; --space-2xl: 48px; --space-3xl: 64px; --space-4xl: 96px;
  --text-sm: .875rem; --text-base: 1rem; --text-lg: 1.25rem;
  --text-title: clamp(1.75rem, 2.7vw, 2.5rem);
  --text-display: clamp(4rem, 7vw, 6rem);
  --ease-out: cubic-bezier(.16, 1, .3, 1);
  --ease-in: cubic-bezier(.7, 0, .84, 0);
  --ease-in-out: cubic-bezier(.65, 0, .35, 1);
  --dur-fast: 180ms; --dur-entry: 220ms;
  --rule-width: 1px; --radius-sm: 4px;
}
:root[data-theme='dark'] {
  color-scheme: dark;
  --color-paper: oklch(21% .018 145);
  --color-surface: oklch(25% .023 145);
  --color-ink: oklch(92% .014 95);
  --color-muted: oklch(73% .025 110);
  --color-accent: oklch(79% .085 130);
  --color-rule: oklch(40% .024 140);
  --color-focus: oklch(80% .12 130);
}

:root { --color-sheet: oklch(98% .014 94); --color-sheet-shadow: oklch(28% .035 120 / .12); --color-ornament: oklch(70% .05 130); --dur-reveal: 800ms; }
:root[data-theme='dark'] { --color-sheet: oklch(29% .022 130); --color-sheet-shadow: oklch(10% .025 130 / .3); --color-ornament: oklch(51% .045 130); }

/* Sheltie companions and illustration palette. */
:root {
  --dog-sable: oklch(52% .09 53); --dog-dark: oklch(29% .045 45); --dog-cream: oklch(94% .025 85);
  --rest-sable: oklch(57% .064 58); --rest-shade: oklch(46% .055 49); --rest-cream: oklch(95% .019 88); --rest-ink: oklch(32% .027 48); --rest-highlight: oklch(70% .056 66);
  --meadow-sky: oklch(88% .029 155); --meadow-far: oklch(73% .042 119); --meadow-near: oklch(52% .038 128); --meadow-sun: oklch(94% .051 87);
  --study-leaf: oklch(56% .075 130);
  --study-leaf-light: oklch(76% .065 112);
  --study-leaf-dark: oklch(40% .055 142);
  --study-stem: oklch(47% .045 80);
}
:root[data-theme='dark'] { --meadow-sky: oklch(31% .027 155); --meadow-far: oklch(38% .034 119); --meadow-near: oklch(27% .024 128); --meadow-sun: oklch(83% .026 87); }

/* Idle companion motion keeps its original gentle curves. */
:root { --ease-idle: cubic-bezier(.42, 0, .58, 1); --ease-flow: cubic-bezier(.25, .1, .25, 1); --ease-linear: linear; }