/* Hallmark · tokens · theme: DESIGN.md (derived from the BTime app, 2026-09-30)
 * axes: light paper · grotesk-sans (Geist) · cool accent (indigo 276°)
 */
:root {
    /* Colour — sampled from the app screenshots */
    --color-paper: oklch(97.1% 0.004 286); /* app canvas */
    --color-paper-2: oklch(94.5% 0.006 286);
    --color-surface: oklch(99.6% 0.002 286); /* cards */
    --color-rule: oklch(91% 0.006 286);
    --color-rule-strong: oklch(84% 0.008 286);
    --color-neutral: oklch(58% 0.01 286);
    --color-muted: oklch(45% 0.012 286);
    --color-ink: oklch(21% 0.012 286);

    --color-accent: oklch(49% 0.243 276); /* app indigo */
    --color-accent-hover: oklch(44% 0.23 276);
    --color-accent-tint: oklch(94.5% 0.03 285);
    --color-accent-tint-2: oklch(89% 0.06 285);
    --color-on-accent: oklch(99% 0.004 286);
    --color-focus: oklch(55% 0.24 276);

    --color-mint-tint: oklch(95.5% 0.021 174);
    --color-mint-ink: oklch(47% 0.096 166);
    --color-peach-tint: oklch(95.2% 0.022 46);
    --color-peach-ink: oklch(47.8% 0.136 38);

    --color-dark: oklch(22.5% 0.01 295); /* the app's one dark card */
    --color-dark-2: oklch(28% 0.012 295);
    --color-dark-rule: oklch(34% 0.012 295);
    --color-on-dark: oklch(96% 0.004 286);
    --color-on-dark-muted: oklch(76% 0.01 286);
    --color-accent-on-dark: oklch(74% 0.14 280);

    --color-shadow: oklch(30% 0.08 276 / 0.1);
    --color-shadow-strong: oklch(30% 0.1 276 / 0.16);
    --color-scrim: oklch(97.1% 0.004 286 / 0.82);

    /* Type */
    --font-display: 'Geist', ui-sans-serif, system-ui, sans-serif;
    --font-body: 'Geist', ui-sans-serif, system-ui, sans-serif;

    --text-xs: 0.8125rem;
    --text-sm: 0.9375rem;
    --text-base: 1.0625rem;
    --text-lg: 1.25rem;
    --text-xl: clamp(1.375rem, 1rem + 1vw, 1.625rem);
    --text-2xl: clamp(1.75rem, 1.2rem + 2vw, 2.5rem);
    --text-3xl: clamp(2.125rem, 1.4rem + 3vw, 3.25rem);
    --text-display: clamp(2.5rem, 1.5rem + 4.4vw, 4.5rem);

    /* Space — 4pt scale */
    --space-3xs: 0.25rem;
    --space-2xs: 0.5rem;
    --space-xs: 0.75rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4.5rem;
    --space-3xl: 7rem;

    --page-max: 76rem;
    --page-gutter: clamp(1rem, 4vw, 2.5rem);
    --nav-height: 4.25rem;

    /* Shape — the app's soft, pillowy radii */
    --radius-sm: 0.75rem;
    --radius-md: 1.25rem;
    --radius-lg: 1.75rem;
    --radius-pill: 999px;
    --rule-hair: 1px;

    /* 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;
    --dur-nav: 520ms;

    --z-sticky: 10;
    --z-nav: 50;
}