/* Cleancraft — Phase 1 design system: tokens + primitives only.
   Palette measured from the client's Service Menu PDF (ivory + near-black, taupe neutral
   from photography). Monochrome — no invented accent. Zero raw hex/px/ms in component rules. */

:root {
  /* colour (OKLCH) — measured: ground #F8F8F0, ink #0C0C0C, warm taupe from photos */
  --c-ivory: oklch(97.5% 0.009 100);
  --c-ivory-deep: oklch(94.5% 0.012 96);
  --c-surface: oklch(99% 0.005 100);
  --c-sand: oklch(87% 0.018 82);        /* hairlines / borders */
  --c-taupe: oklch(74% 0.03 72);        /* warm neutral fills */
  --c-taupe-deep: oklch(46% 0.035 60);  /* warm text (eyebrow), AA at bold */
  --c-ink: oklch(17% 0.004 80);         /* near-black text #0C0C0C */
  --c-ink-soft: oklch(34% 0.006 78);    /* secondary text */
  --c-ink-mute: oklch(50% 0.008 72);    /* meta / captions */

  /* semantic — monochrome: dark ink is the CTA, taupe is the only warmth */
  --bg: var(--c-ivory);
  --bg-alt: var(--c-ivory-deep);
  --surface: var(--c-surface);
  --text: var(--c-ink);
  --text-soft: var(--c-ink-soft);
  --text-mute: var(--c-ink-mute);
  --border: var(--c-sand);
  --accent: var(--c-ink);
  --accent-hover: oklch(28% 0.006 76);
  --on-accent: var(--c-ivory);
  --warm: var(--c-taupe);
  --warm-deep: var(--c-taupe-deep);

  /* type — sans-led, readable, grounded (Bricolage display + Hanken body) */
  --font-display: "Bricolage Grotesque", system-ui, sans-serif;
  --font-body: "Hanken Grotesk", system-ui, -apple-system, sans-serif;
  --t-xs: .78rem;  --t-sm: .89rem;  --t-base: 1rem;
  --t-md: clamp(1.15rem, 1.05rem + 0.4vw, 1.35rem);
  --t-lg: clamp(1.45rem, 1.2rem + 1vw, 1.95rem);
  --t-xl: clamp(2rem, 1.5rem + 2vw, 3rem);
  --t-2xl: clamp(2.5rem, 1.8rem + 3.2vw, 4.1rem);
  --t-display: clamp(3rem, 1.9rem + 5vw, 5.6rem);

  /* spacing */
  --s-1: 4px;  --s-2: 8px;  --s-3: 12px; --s-4: 16px; --s-6: 24px;
  --s-8: 32px; --s-12: 48px; --s-16: 64px; --s-24: 96px; --s-32: 128px;
  --section-y: clamp(64px, 8vw, 128px);

  /* radius / motion */
  --r-sm: 4px; --r-md: 8px; --r-lg: 14px;
  --ease-out: cubic-bezier(.16, 1, .3, 1);
  --ease-soft: cubic-bezier(.25, .46, .45, .94);
  --d-fast: 120ms; --d-base: 220ms; --d-slow: 420ms;

  /* layout — must work at 4K @ 125% */
  --wrap: 1280px;
  --gutter: clamp(20px, 5vw, 72px);
  --nav-h: 72px;
  --sticky-h: 68px;

  /* z-index ladder */
  --z-sticky: 100; --z-nav: 200; --z-drawer: 300; --z-modal: 400; --z-toast: 500;
}
@media (min-width: 1600px) { :root { --wrap: 1440px; } }
@media (min-width: 1920px) { :root { --wrap: 1560px; } }

/* reset / base */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--t-base);
  line-height: 1.65;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  padding-bottom: var(--sticky-h);
  -webkit-tap-highlight-color: transparent;
}
a, button { touch-action: manipulation; }
/* generated pages opt into scroll-reveal via body.reveal; gated by html.js so no-JS shows everything */
html.js body.reveal main .band { opacity: 0; }
@media (prefers-reduced-motion: reduce) { html.js body.reveal main .band { opacity: 1 !important; transform: none !important; } }
img, picture, svg, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { font-family: var(--font-display); font-weight: 700; line-height: 1.1; letter-spacing: -0.02em; text-wrap: balance; }
h1 { font-size: var(--t-2xl); }
h2 { font-size: var(--t-xl); }
h3 { font-size: var(--t-lg); font-weight: 600; letter-spacing: -0.01em; }
p { max-width: 72ch; }

/* utilities */
.container { max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }
.eyebrow {
  font-size: var(--t-xs); text-transform: uppercase; letter-spacing: 0.12em;
  font-weight: 600; color: var(--warm-deep);
}
.lede { font-size: var(--t-md); color: var(--text-soft); }
.accent-text { font-weight: 600; color: var(--text); }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* a11y floor */
.skip-link {
  position: absolute; left: var(--s-4); top: -100%;
  background: var(--text); color: var(--on-accent);
  padding: var(--s-2) var(--s-4); border-radius: var(--r-sm); z-index: var(--z-modal);
}
.skip-link:focus { top: var(--s-4); }
:focus-visible { outline: 2px solid var(--text); outline-offset: 2px; border-radius: var(--r-sm); }

/* buttons — monochrome: dark ink primary, outline secondary */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--s-2);
  min-height: 48px; padding: var(--s-3) var(--s-6);
  font-family: var(--font-body); font-size: var(--t-sm); font-weight: 600;
  letter-spacing: 0.01em; border-radius: var(--r-md); border: 1px solid transparent;
  cursor: pointer; transition: background var(--d-fast) var(--ease-soft),
    color var(--d-fast) var(--ease-soft), border-color var(--d-fast) var(--ease-soft),
    transform var(--d-fast) var(--ease-out), box-shadow var(--d-base) var(--ease-out);
}
.btn--primary { background: var(--accent); color: var(--on-accent); }
.btn--primary:hover { background: var(--accent-hover); }
.btn--ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn--ghost:hover { border-color: var(--text); }
/* lift + press on every button */
.btn:hover { transform: translateY(-2px); box-shadow: 0 8px 22px color-mix(in oklch, var(--c-ink) 16%, transparent); }
.btn:active { transform: translateY(0); box-shadow: none; transition-duration: var(--d-fast); }
@media (prefers-reduced-motion: reduce) { .btn:hover, .btn:active { transform: none; } }

/* nav shell */
.site-nav {
  position: sticky; top: 0; z-index: var(--z-nav);
  min-height: var(--nav-h); padding-top: env(safe-area-inset-top, 0px);
  display: flex; align-items: center;
  background: color-mix(in oklch, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px); border-bottom: 1px solid var(--border);
}
.site-nav .container { display: flex; align-items: center; justify-content: space-between; width: 100%; }
.site-nav__brand { font-family: var(--font-display); font-size: 1.4rem; font-weight: 700; letter-spacing: -0.02em; }
.site-nav__links { display: flex; gap: var(--s-8); align-items: center; }
.site-nav__links a { position: relative; font-size: var(--t-sm); font-weight: 500; color: var(--text-soft); transition: color var(--d-fast); }
.site-nav__links a:hover { color: var(--text); }
/* underline-grow on hover */
.site-nav__links a::after {
  content: ""; position: absolute; left: 0; bottom: -4px; width: 100%; height: 1.5px;
  background: currentColor; transform: scaleX(0); transform-origin: left;
  transition: transform var(--d-base) var(--ease-out);
}
.site-nav__links a:hover::after { transform: scaleX(1); }
@media (prefers-reduced-motion: reduce) { .site-nav__links a::after { display: none; } }
/* nav elevates once scrolled (all pages) */
.site-nav.is-scrolled { box-shadow: 0 4px 20px color-mix(in oklch, var(--c-ink) 9%, transparent); }
.site-nav__toggle { display: none; background: none; border: 0; padding: var(--s-2); }

/* mobile drawer shell */
.drawer { position: fixed; inset: 0; z-index: var(--z-drawer); display: none; }
.drawer[data-open="true"] { display: block; }
.drawer__scrim { position: absolute; inset: 0; background: color-mix(in oklch, var(--c-ink) 45%, transparent); }
.drawer__panel {
  position: absolute; right: 0; top: 0; height: 100%; width: min(86vw, 360px);
  background: var(--surface); padding: var(--s-16) var(--s-6); display: flex; flex-direction: column; gap: var(--s-4);
  overscroll-behavior: contain;
}
@media (max-width: 860px) {
  .site-nav__links { display: none; }
  .site-nav__toggle { display: inline-flex; }
}

/* tile primitives (3 canonical patterns) */
.tile-media { display: flex; flex-direction: column; gap: var(--s-3); }
.tile-media figcaption { font-size: var(--t-sm); color: var(--text-mute); }
.tile-data {
  padding: var(--s-8) var(--s-6); background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--r-lg); display: flex; flex-direction: column; gap: var(--s-2);
}
.tile-data { transition: transform var(--d-base) var(--ease-out), border-color var(--d-base) var(--ease-out), box-shadow var(--d-base) var(--ease-out); }
.tile-data:hover { transform: translateY(-3px); border-color: color-mix(in oklch, var(--c-taupe) 60%, var(--border)); box-shadow: 0 10px 28px color-mix(in oklch, var(--c-ink) 8%, transparent); }
@media (prefers-reduced-motion: reduce) { .tile-data:hover { transform: none; } }
.tile-data__num { font-family: var(--font-display); font-size: var(--t-xl); font-weight: 700; color: var(--text); }
.tile-data__label { font-size: var(--t-sm); color: var(--text-soft); }
.tile-placeholder {
  aspect-ratio: 4 / 3; border-radius: var(--r-lg);
  background: linear-gradient(135deg, var(--c-ivory-deep), var(--c-taupe));
  border: 1px solid var(--border); display: grid; place-items: center;
  font-size: var(--t-xs); color: var(--c-ink-soft); text-transform: uppercase; letter-spacing: 0.1em;
}

/* footer shell */
.site-footer { background: var(--c-ink); color: var(--c-ivory); padding-block: var(--s-24) var(--s-12); }
.site-footer a { color: var(--c-ivory); opacity: .8; transition: opacity var(--d-fast); }
.site-footer a:hover { opacity: 1; }
.site-footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: var(--s-12); }
.site-footer__legal {
  margin-top: var(--s-16); padding-top: var(--s-6);
  border-top: 1px solid color-mix(in oklch, var(--c-ivory) 18%, transparent);
  font-size: var(--t-xs); color: color-mix(in oklch, var(--c-ivory) 65%, transparent);
}
@media (max-width: 860px) { .site-footer__grid { grid-template-columns: 1fr; gap: var(--s-8); } }

/* sticky bottom CTA (bible hard rule 11a — every page) */
.sticky-cta {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: var(--z-sticky);
  min-height: var(--sticky-h); display: flex; align-items: center; justify-content: space-between; gap: var(--s-4);
  padding: var(--s-2) var(--gutter);
  padding-bottom: calc(var(--s-2) + env(safe-area-inset-bottom, 0px));
  background: color-mix(in oklch, var(--bg) 96%, transparent);
  backdrop-filter: blur(10px); border-top: 1px solid var(--border);
  box-shadow: 0 -2px 12px color-mix(in oklch, var(--c-ink) 8%, transparent);
}
.sticky-cta__msg { font-size: var(--t-sm); font-weight: 500; color: var(--text-soft); }
.sticky-cta__actions { display: flex; gap: var(--s-2); }
@media (max-width: 640px) {
  .sticky-cta__msg { display: none; }
  .sticky-cta__actions { width: 100%; }
  .sticky-cta__actions .btn { flex: 1; }
}

/* motion preference */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}