/* ==========================================================================
   SILVER & GRAIN - analog film lab & print shop (fictional)
   Identity: "Safelight Darkroom". Charcoal paper, amber safelight, gold.
   Design system: OKLCH tokens, fluid type/spacing scales, motion that
   honors prefers-reduced-motion. No frameworks.
   ========================================================================== */

/* ---- 1. Tokens ---------------------------------------------------------- */
:root {
  /* surfaces */
  --paper: oklch(15.5% 0.012 70);
  --paper-2: oklch(19% 0.014 70);
  --paper-3: oklch(23.5% 0.016 70);
  --paper-deep: oklch(12% 0.01 70);
  --ink: oklch(93% 0.008 85);
  --ink-2: oklch(76% 0.012 80);
  --ink-3: oklch(58% 0.014 75);
  /* safelight (the one accent) */
  --safelight: oklch(64% 0.16 45);
  --safelight-hi: oklch(75% 0.13 58);
  --safelight-deep: oklch(46% 0.14 38);
  --gold: oklch(78% 0.09 88);
  --gold-dim: oklch(64% 0.07 85);
  /* structure */
  --line: oklch(31% 0.02 70);
  --line-soft: oklch(25% 0.016 70);
  /* states */
  --ok: oklch(72% 0.13 150);
  --warn: oklch(78% 0.13 85);
  --err: oklch(65% 0.19 25);
  /* type */
  --font-display: "Literata", "Iowan Old Style", Georgia, serif;
  --font-body: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
  --font-weight-body: 380;
  --font-weight-display: 560;
  /* fluid type scale */
  --step--2: clamp(0.72rem, 0.70rem + 0.12vw, 0.80rem);
  --step--1: clamp(0.86rem, 0.83rem + 0.18vw, 0.95rem);
  --step-0: clamp(1.02rem, 0.98rem + 0.24vw, 1.13rem);
  --step-1: clamp(1.24rem, 1.16rem + 0.42vw, 1.45rem);
  --step-2: clamp(1.5rem, 1.36rem + 0.7vw, 1.85rem);
  --step-3: clamp(1.84rem, 1.58rem + 1.3vw, 2.5rem);
  --step-4: clamp(2.26rem, 1.8rem + 2.3vw, 3.4rem);
  --step-5: clamp(2.8rem, 2.0rem + 4.0vw, 4.7rem);
  --step-6: clamp(3.5rem, 2.1rem + 7.0vw, 6.6rem);
  /* space scale */
  --space-3xs: 0.25rem;
  --space-2xs: 0.5rem;
  --space-xs: 0.75rem;
  --space-s: 1rem;
  --space-m: 1.5rem;
  --space-l: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6.5rem;
  --gutter: clamp(1.1rem, 0.6rem + 2.4vw, 2.75rem);
  --measure: 62ch;
  --radius-s: 3px;
  --radius-m: 6px;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-swing: cubic-bezier(0.68, -0.4, 0.27, 1.4);
  --dur-fast: 140ms;
  --dur-med: 320ms;
  --dur-slow: 720ms;
  --header-h: 4.1rem;
  /* motion tokens (animated: the "exposure" wash) */
  --exposure: 0;
}

/* ---- 2. Reset ----------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html {
  color-scheme: dark;
  scroll-behavior: smooth;
  scrollbar-color: var(--line) var(--paper-deep);
}
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-weight: var(--font-weight-body);
  font-size: var(--step-0);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  min-height: 100dvh;
}
img, svg, video { display: block; max-width: 100%; height: auto; }
input, button, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: 0; }
a { color: var(--safelight-hi); text-underline-offset: 0.18em; }
a:hover { color: var(--gold); }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: var(--font-weight-display); line-height: 1.08; letter-spacing: -0.015em; text-wrap: balance; }
p, li { text-wrap: pretty; }
::selection { background: var(--safelight); color: var(--paper-deep); }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; border-radius: 2px; }

/* skip link */
.skip {
  position: absolute; left: var(--space-s); top: -100%;
  z-index: 200; padding: 0.6em 1em;
  background: var(--safelight); color: var(--paper-deep);
  font-weight: 600; border-radius: var(--radius-s);
  transition: top var(--dur-fast) var(--ease-out);
}
.skip:focus { top: var(--space-s); }

/* ---- 3. Layout ---------------------------------------------------------- */
.wrap { max-width: 74rem; margin-inline: auto; padding-inline: var(--gutter); }
.wrap-narrow { max-width: 46rem; }
.section { padding-block: var(--space-xl); border-top: 1px solid var(--line-soft); }
.section:first-of-type { border-top: 0; }
.stack > * + * { margin-block-start: var(--space-s); }
.flow > * + * { margin-block-start: var(--space-m); }
.grid { display: grid; gap: var(--space-m); }
.cluster { display: flex; flex-wrap: wrap; gap: var(--space-xs); align-items: center; }
.visually-hidden {
  position: absolute !important; width: 1px; height: 1px;
  margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* eyebrow + headings */
.eyebrow {
  font-size: var(--step--2); font-weight: 600; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--gold-dim);
  display: inline-flex; align-items: center; gap: 0.6em;
}
.eyebrow::before { content: ""; width: 1.6rem; height: 1px; background: var(--safelight-deep); }
.section-title { font-size: var(--step-3); margin-block: var(--space-2xs) var(--space-s); }
.lede { font-size: var(--step-1); color: var(--ink-2); max-width: 38ch; }

/* ---- 4. Film grain overlay --------------------------------------------- */
.grain {
  position: fixed; inset: 0; z-index: 999; pointer-events: none;
  opacity: calc(0.05 + var(--exposure) * 0.05);
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 160px 160px;
}

/* ---- 5. Header / nav ---------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: color-mix(in oklab, var(--paper) 86%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-soft);
  transition: background var(--dur-med) var(--ease-out), box-shadow var(--dur-med) var(--ease-out);
}
.site-header.is-scrolled { background: color-mix(in oklab, var(--paper-deep) 92%, transparent); box-shadow: 0 10px 40px oklch(0% 0 0 / 0.45); }
.header-inner { display: flex; align-items: center; gap: var(--space-m); min-height: var(--header-h); }
.wordmark {
  font-family: var(--font-display); font-weight: 640; font-size: var(--step-1);
  letter-spacing: 0.01em; color: var(--ink); text-decoration: none;
  display: inline-flex; align-items: baseline; gap: 0.45ch; white-space: nowrap;
}
.wordmark em { font-style: italic; color: var(--safelight); font-weight: 480; }
.wordmark .amp { color: var(--gold-dim); font-style: italic; font-weight: 400; }
.nav { margin-inline-start: auto; }
.nav ul { display: flex; gap: var(--space-2xs); list-style: none; margin: 0; padding: 0; }
.nav a {
  display: block; padding: 0.45em 0.8em; text-decoration: none;
  color: var(--ink-2); font-size: var(--step--1); font-weight: 500;
  border-radius: var(--radius-s); position: relative;
  transition: color var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out);
}
.nav a::after {
  content: ""; position: absolute; left: 0.8em; right: 0.8em; bottom: 0.28em;
  height: 1px; background: var(--safelight); transform: scaleX(0); transform-origin: left;
  transition: transform var(--dur-med) var(--ease-out);
}
.nav a:hover, .nav a:focus-visible { color: var(--ink); background: oklch(100% 0 0 / 0.04); }
.nav a:hover::after { transform: scaleX(1); }
.nav a[aria-current="page"] { color: var(--safelight-hi); }
.nav a[aria-current="page"]::after { transform: scaleX(1); }
.nav-toggle { display: none; }

@media (max-width: 62rem) {
  .nav {
    position: fixed; inset: var(--header-h) 0 auto 0; z-index: 90;
    background: var(--paper-deep); border-bottom: 1px solid var(--line);
    padding: var(--space-s) var(--gutter) var(--space-l);
    transform: translateY(-105%); transition: transform var(--dur-med) var(--ease-out);
  }
  .nav.is-open { transform: translateY(0); box-shadow: 0 30px 60px oklch(0% 0 0 / 0.6); }
  .nav ul { flex-direction: column; gap: 0; }
  .nav a { padding: 0.85em 0.5em; font-size: var(--step-1); border-bottom: 1px solid var(--line-soft); }
  .nav a::after { bottom: 0.4em; }
  .nav-toggle {
    display: inline-flex; margin-inline-start: auto;
    width: 2.6rem; height: 2.6rem; align-items: center; justify-content: center;
    border: 1px solid var(--line); border-radius: var(--radius-s);
  }
  .nav-toggle .bars { position: relative; width: 1.05rem; height: 10px; }
  .nav-toggle .bars::before, .nav-toggle .bars::after {
    content: ""; position: absolute; left: 0; right: 0; height: 1.5px; background: var(--ink);
    transition: transform var(--dur-med) var(--ease-out), top var(--dur-med) var(--ease-out);
  }
  .nav-toggle .bars::before { top: 2px; }
  .nav-toggle .bars::after { top: 8px; }
  .nav-toggle[aria-expanded="true"] .bars::before { top: 5px; transform: rotate(45deg); }
  .nav-toggle[aria-expanded="true"] .bars::after { top: 5px; transform: rotate(-45deg); }
}

/* ---- 6. Ticker ---------------------------------------------------------- */
.ticker {
  border-block: 1px solid var(--line-soft); overflow: hidden;
  background: var(--paper-deep); white-space: nowrap;
}
.ticker-track { display: inline-flex; gap: 3.2rem; padding-block: 0.55em; animation: ticker 46s linear infinite; }
.ticker:hover .ticker-track, .ticker:focus-within .ticker-track { animation-play-state: paused; }
.ticker span { font-size: var(--step--2); letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-3); }
.ticker b { color: var(--safelight); font-weight: 600; }
@keyframes ticker { to { transform: translateX(-50%); } }

/* ---- 7. Buttons --------------------------------------------------------- */
.btn {
  --btn-bg: var(--safelight); --btn-ink: var(--paper-deep);
  display: inline-flex; align-items: center; gap: 0.55em;
  padding: 0.72em 1.35em; border-radius: var(--radius-s);
  background: var(--btn-bg); color: var(--btn-ink); text-decoration: none;
  font-weight: 600; font-size: var(--step--1); letter-spacing: 0.02em;
  border: 1px solid transparent;
  transition: transform var(--dur-fast) var(--ease-swing), box-shadow var(--dur-med) var(--ease-out), background var(--dur-fast) var(--ease-out);
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 10px 28px oklch(45% 0.15 45 / 0.4); background: var(--safelight-hi); color: var(--paper-deep); }
.btn:active { transform: translateY(0) scale(0.98); }
.btn-ghost { --btn-bg: transparent; --btn-ink: var(--ink); border-color: var(--line); }
.btn-ghost:hover { background: oklch(100% 0 0 / 0.05); color: var(--ink); box-shadow: none; }
.btn-sm { padding: 0.45em 0.9em; font-size: var(--step--2); }
.btn[disabled], .btn[aria-disabled="true"] { opacity: 0.45; pointer-events: none; }
.btn .arrow { transition: transform var(--dur-med) var(--ease-out); }
.btn:hover .arrow { transform: translateX(4px); }

/* ---- 8. Hero ------------------------------------------------------------ */
.hero { position: relative; padding-block: var(--space-2xl) var(--space-xl); overflow: hidden; }
.hero-grid { display: grid; gap: var(--space-xl); align-items: center; }
@media (min-width: 56rem) { .hero-grid { grid-template-columns: 1.1fr 0.9fr; } }
.hero h1 { font-size: var(--step-5); margin-block: var(--space-2xs) var(--space-s); }
.hero h1 .glow { color: var(--safelight); font-style: italic; font-weight: 470; }
.hero .lede { max-width: 46ch; }
.hero-cta { display: flex; flex-wrap: wrap; gap: var(--space-s); margin-top: var(--space-m); }
.hero-meta { display: flex; gap: var(--space-l); margin-top: var(--space-l); flex-wrap: wrap; }
.hero-meta div { min-width: 7rem; }
.hero-meta dt { font-size: var(--step--2); letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-3); }
.hero-meta dd { font-family: var(--font-display); font-size: var(--step-2); font-weight: 560; color: var(--gold); }

/* light-table illustration (pure CSS/SVG frame with sprockets) */
.lighttable { position: relative; }
.lighttable .frame-box {
  position: relative; border: 1px solid var(--line); border-radius: var(--radius-m);
  background:
    linear-gradient(160deg, oklch(22% 0.03 60 / 0.9), oklch(14% 0.015 60 / 0.95)),
    radial-gradient(120% 90% at 70% 20%, oklch(45% 0.12 45 / 0.25), transparent 60%);
  padding: var(--space-s);
}
.sprockets {
  display: grid; grid-template-columns: repeat(8, 1fr); gap: 0.55em;
  padding: 0.35em 0.2em;
}
.sprockets i {
  height: 0.52em; border-radius: 2px;
  background: var(--paper-deep);
  box-shadow: inset 0 0 0 1px var(--line-soft);
}
.lighttable svg { width: 100%; height: auto; }
.lighttable .caption {
  position: absolute; left: var(--space-s); bottom: var(--space-s);
  font-size: var(--step--2); letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3);
}

/* ---- 9. Filmstrip divider ----------------------------------------------- */
.filmstrip {
  height: 30px; margin-block: var(--space-m);
  background:
    linear-gradient(to bottom, var(--line-soft) 1px, transparent 1px) top/100% 1px no-repeat,
    linear-gradient(to bottom, transparent calc(100% - 1px), var(--line-soft) calc(100% - 1px)) bottom/100% 1px no-repeat,
    repeating-linear-gradient(to right, var(--paper-deep) 0 8px, transparent 8px 26px) center/100% 12px no-repeat,
    linear-gradient(to right, transparent, var(--line-soft), transparent) center/100% 1px no-repeat;
}

/* ---- 10. Cards ----------------------------------------------------------- */
.card {
  position: relative; display: flex; flex-direction: column; gap: var(--space-2xs);
  padding: var(--space-m); border: 1px solid var(--line); border-radius: var(--radius-m);
  background: linear-gradient(180deg, var(--paper-2), var(--paper));
  text-decoration: none; color: inherit;
  transition: transform var(--dur-med) var(--ease-out), border-color var(--dur-med) var(--ease-out), box-shadow var(--dur-med) var(--ease-out);
}
.card::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
  background: linear-gradient(115deg, transparent 30%, oklch(70% 0.14 50 / 0.08) 48%, transparent 62%);
  transform: translateX(-120%); transition: transform 900ms var(--ease-out);
}
.card:hover::before { transform: translateX(120%); }
.card:hover, .card:focus-visible { transform: translateY(-4px); border-color: var(--safelight-deep); box-shadow: 0 18px 44px oklch(0% 0 0 / 0.5); }
.card h3 { font-size: var(--step-1); }
.card .num {
  font-family: var(--font-display); font-style: italic; font-weight: 300;
  font-size: var(--step--1); color: var(--gold-dim);
}
.card p { color: var(--ink-2); font-size: var(--step--1); }
.card .more { margin-top: auto; color: var(--safelight-hi); font-size: var(--step--2); letter-spacing: 0.1em; text-transform: uppercase; display: inline-flex; gap: 0.5em; align-items: center; }
.card .more::after { content: "\2192"; transition: transform var(--dur-fast) var(--ease-out); }
.card:hover .more::after { transform: translateX(4px); }
.card-grid { grid-template-columns: repeat(auto-fit, minmax(15.5rem, 1fr)); }
.card-grid-3 { grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr)); }

/* stat blocks */
.stat { border-block: 1px solid var(--line-soft); padding-block: var(--space-s); }
.stat b { display: block; font-family: var(--font-display); font-size: var(--step-3); font-weight: 560; color: var(--gold); font-variant-numeric: tabular-nums; }
.stat span { color: var(--ink-3); font-size: var(--step--2); letter-spacing: 0.12em; text-transform: uppercase; }
.stat-row { display: grid; gap: var(--space-m); grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr)); }

/* ---- 11. Contact sheet --------------------------------------------------- */
.sheet-wrap { position: relative; }
.sheet {
  display: grid; gap: 6px; padding: 10px;
  background: var(--paper-deep); border: 1px solid var(--line); border-radius: var(--radius-m);
  grid-template-columns: repeat(auto-fill, minmax(7.5rem, 1fr));
}
.sheet .cell {
  position: relative; aspect-ratio: 3 / 2; overflow: hidden;
  border: 1px solid var(--line-soft); border-radius: 2px;
  background: linear-gradient(150deg, oklch(26% 0.02 60), oklch(16% 0.012 60));
  cursor: zoom-in; outline-offset: -2px;
}
.sheet .cell::after {
  content: attr(data-frame); position: absolute; right: 4px; bottom: 2px;
  font-size: 0.58rem; color: oklch(70% 0.02 80 / 0.8); font-variant-numeric: tabular-nums;
}
.sheet .cell .neg { position: absolute; inset: 8% 10%; }
.sheet .cell:hover, .sheet .cell:focus-visible { z-index: 2; }
.sheet .cell:hover .neg, .sheet .cell:focus-visible .neg { transform: scale(1.5); }
.sheet .cell .neg { transition: transform 480ms var(--ease-out); transform-origin: 60% 40%; }
/* the loupe */
.loupe {
  position: absolute; z-index: 3; width: 9.5rem; height: 9.5rem;
  border-radius: 50%; border: 2px solid var(--gold); pointer-events: none;
  background: oklch(20% 0.02 60 / 0.92); box-shadow: 0 20px 50px oklch(0% 0 0 / 0.7), inset 0 0 18px oklch(0% 0 0 / 0.55);
  transform: translate(-50%, -50%) scale(0.6); opacity: 0;
  transition: opacity 200ms var(--ease-out), transform 300ms var(--ease-swing);
}
.loupe.is-live { opacity: 1; transform: translate(-50%, -50%) scale(1); }
.loupe svg { position: absolute; inset: 12%; }

/* negative art (shared SVG per frame) */
.neg svg { width: 100%; height: 100%; }

/* ---- 12. Process / timeline --------------------------------------------- */
.stages { counter-reset: stage; display: grid; gap: var(--space-s); }
.stage {
  position: relative; display: grid; gap: 0 1.4rem; padding: var(--space-m);
  border: 1px solid var(--line-soft); border-radius: var(--radius-m); background: var(--paper-2);
  grid-template-columns: 3.4rem 1fr;
}
.stage::before {
  counter-increment: stage; content: counter(stage, decimal-leading-zero);
  font-family: var(--font-display); font-style: italic; font-weight: 300;
  font-size: var(--step-2); color: var(--safelight);
  border-right: 1px solid var(--line-soft); padding-right: 1rem;
}
.stage h3 { font-size: var(--step-1); margin-block-end: 0.2em; }
.stage p { color: var(--ink-2); font-size: var(--step--1); max-width: 60ch; }

/* ---- 13. Price table ------------------------------------------------------ */
.price-table { width: 100%; border-collapse: collapse; font-size: var(--step--1); }
.price-table caption { text-align: left; color: var(--ink-3); font-size: var(--step--2); padding-block-end: var(--space-2xs); }
.price-table th, .price-table td { text-align: left; padding: 0.7em 0.9em; border-bottom: 1px solid var(--line-soft); }
.price-table thead th { font-size: var(--step--2); letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-3); font-weight: 600; }
.price-table tbody tr { transition: background var(--dur-fast) var(--ease-out); }
.price-table tbody tr:hover { background: oklch(100% 0 0 / 0.035); }
.price-table td:last-child, .price-table th:last-child { text-align: right; font-variant-numeric: tabular-nums; }
.price-table .tier { color: var(--safelight-hi); font-weight: 600; }

/* ---- 14. Before/after (negative vs print) -------------------------------- */
.ba { position: relative; border: 1px solid var(--line); border-radius: var(--radius-m); overflow: hidden; background: var(--paper-deep); }
.ba .layer { position: absolute; inset: 0; }
.ba .after { clip-path: inset(0 0 0 var(--ba-split, 50%)); }
.ba .before-label, .ba .after-label {
  position: absolute; top: var(--space-2xs); font-size: var(--step--2); letter-spacing: 0.14em;
  text-transform: uppercase; background: oklch(10% 0 0 / 0.75); padding: 0.25em 0.6em; border-radius: 2px;
}
.ba .before-label { left: var(--space-2xs); }
.ba .after-label { right: var(--space-2xs); color: var(--safelight-hi); }
.ba input[type="range"] {
  position: absolute; inset: auto 0 0; width: 100%; appearance: none; height: 2.2rem;
  background: linear-gradient(to right, var(--line-soft), var(--safelight-deep)); opacity: 0.85;
}
.ba input[type="range"]::-webkit-slider-thumb { appearance: none; width: 2px; height: 2.2rem; background: var(--gold); box-shadow: 0 0 0 3px oklch(10% 0 0 / 0.6); }
.ba input[type="range"]:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }

/* ---- 15. Film wall (emulsion cards) -------------------------------------- */
.emulsion {
  display: grid; gap: var(--space-2xs); padding: var(--space-m);
  border: 1px solid var(--line); border-left: 4px solid var(--emulsion, var(--safelight));
  border-radius: var(--radius-m); background: var(--paper-2);
  transition: transform var(--dur-med) var(--ease-out), border-color var(--dur-med) var(--ease-out);
}
.emulsion:hover { transform: translateX(4px); border-left-color: var(--gold); }
.emulsion h3 { font-size: var(--step-1); display: flex; align-items: baseline; gap: 0.5ch; }
.emulsion .iso { font-family: var(--font-display); font-style: italic; font-weight: 300; color: var(--gold-dim); font-size: var(--step--1); }
.emulsion p { color: var(--ink-2); font-size: var(--step--1); }
.emulsion dl { display: grid; grid-template-columns: auto auto; gap: 0.15em 1em; font-size: var(--step--2); color: var(--ink-3); }
.emulsion dt { letter-spacing: 0.1em; text-transform: uppercase; }
.emulsion dd { color: var(--ink-2); font-variant-numeric: tabular-nums; }

/* ---- 16. Journal ---------------------------------------------------------- */
.post-card { display: grid; gap: var(--space-3xs); padding: var(--space-m) 0; border-block-end: 1px solid var(--line-soft); text-decoration: none; color: inherit; }
.post-card:hover h3 { color: var(--safelight-hi); }
.post-card time { font-size: var(--step--2); color: var(--ink-3); letter-spacing: 0.12em; text-transform: uppercase; }
.post-card h3 { font-size: var(--step-2); transition: color var(--dur-fast) var(--ease-out); }
.post-card p { color: var(--ink-2); max-width: 62ch; }
.post-card .read { color: var(--safelight-hi); font-size: var(--step--2); letter-spacing: 0.1em; text-transform: uppercase; }
.prose { max-width: 68ch; }
.prose > * + * { margin-block-start: var(--space-s); }
.prose h2 { font-size: var(--step-2); margin-block-start: var(--space-l); }
.prose blockquote { border-left: 3px solid var(--safelight-deep); padding-inline-start: var(--space-s); color: var(--ink-2); font-family: var(--font-display); font-style: italic; }

/* ---- 17. Forms ------------------------------------------------------------ */
.form { display: grid; gap: var(--space-s); max-width: 34rem; }
.field { display: grid; gap: 0.3rem; }
.field label { font-size: var(--step--2); letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3); font-weight: 600; }
.field input, .field select, .field textarea {
  background: var(--paper-deep); border: 1px solid var(--line); border-radius: var(--radius-s);
  padding: 0.65em 0.8em; color: var(--ink); width: 100%;
  transition: border-color var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
}
.field input:hover, .field textarea:hover, .field select:hover { border-color: var(--ink-3); }
.field input:focus, .field textarea:focus, .field select:focus { border-color: var(--gold); box-shadow: 0 0 0 3px oklch(78% 0.09 88 / 0.18); outline: none; }
.field input:invalid:not(:placeholder-shown), .field textarea:invalid:not(:placeholder-shown) { border-color: var(--err); }
.field .hint { font-size: var(--step--2); color: var(--ink-3); }
.field .error-msg { color: var(--err); font-size: var(--step--2); display: none; }
.field.has-error .error-msg { display: block; }
.field.has-error input, .field.has-error textarea { border-color: var(--err); box-shadow: 0 0 0 3px oklch(65% 0.19 25 / 0.15); }
.field-row { display: grid; gap: var(--space-s); }
@media (min-width: 34rem) { .field-row { grid-template-columns: 1fr 1fr; } }
.form .fineprint { font-size: var(--step--2); color: var(--ink-3); }
.form-note {
  border: 1px dashed var(--line); border-radius: var(--radius-s);
  padding: 0.6em 0.9em; font-size: var(--step--2); color: var(--ink-3); background: var(--paper-2);
}

/* ---- 18. Toasts ----------------------------------------------------------- */
.toasts { position: fixed; right: var(--space-s); bottom: var(--space-s); z-index: 300; display: grid; gap: 0.5rem; max-width: min(24rem, 90vw); }
.toast {
  padding: 0.8em 1.1em; border-radius: var(--radius-m);
  background: var(--paper-3); border: 1px solid var(--safelight-deep);
  color: var(--ink); box-shadow: 0 16px 40px oklch(0% 0 0 / 0.55);
  font-size: var(--step--1);
  animation: toast-in var(--dur-med) var(--ease-swing);
}
.toast.is-leaving { opacity: 0; transform: translateY(8px); transition: opacity 260ms, transform 260ms; }
@keyframes toast-in { from { opacity: 0; transform: translateY(12px) scale(0.97); } }

/* ---- 19. Accordion (FAQ) -------------------------------------------------- */
.accordion { border-block: 1px solid var(--line-soft); }
.accordion details { border-block-end: 1px solid var(--line-soft); }
.accordion summary {
  display: flex; align-items: center; gap: var(--space-s); cursor: pointer;
  padding: var(--space-s) 0.2em; font-weight: 600; font-size: var(--step-0);
  list-style: none; transition: color var(--dur-fast) var(--ease-out);
}
.accordion summary::-webkit-details-marker { display: none; }
.accordion summary:hover { color: var(--safelight-hi); }
.accordion summary::before {
  content: ""; width: 0.65rem; height: 0.65rem; flex: 0 0 auto;
  border-right: 2px solid var(--safelight); border-bottom: 2px solid var(--safelight);
  transform: rotate(-45deg); transition: transform var(--dur-med) var(--ease-out);
}
.accordion details[open] summary::before { transform: rotate(45deg); }
.accordion .a-body { padding: 0 0.2em var(--space-s) 1.5rem; color: var(--ink-2); max-width: 62ch; }

/* ---- 20. Chips / badges ---------------------------------------------------- */
.chip {
  display: inline-block; padding: 0.3em 0.75em; border-radius: 999px;
  border: 1px solid var(--line); font-size: var(--step--2); color: var(--ink-2);
  letter-spacing: 0.08em; text-transform: uppercase;
}
.chip-live { border-color: var(--safelight-deep); color: var(--safelight-hi); }
.badge-open::before, .badge-closed::before { content: ""; display: inline-block; width: 0.5em; height: 0.5em; border-radius: 50%; margin-inline-end: 0.5em; }
.badge-open::before { background: var(--ok); box-shadow: 0 0 6px var(--ok); }
.badge-closed::before { background: var(--err); }

/* ---- 21. Footer ------------------------------------------------------------ */
.footer { border-top: 1px solid var(--line); background: var(--paper-deep); padding-block: var(--space-xl) var(--space-m); margin-top: var(--space-2xl); }
.footer-grid { display: grid; gap: var(--space-l); grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr)); }
.footer h4 { font-family: var(--font-body); font-size: var(--step--2); letter-spacing: 0.18em; text-transform: uppercase; color: var(--ink-3); margin-block-end: var(--space-2xs); }
.footer ul { list-style: none; padding: 0; display: grid; gap: 0.45rem; }
.footer a { color: var(--ink-2); text-decoration: none; }
.footer a:hover { color: var(--safelight-hi); text-decoration: underline; }
.footer .bigmark {
  font-family: var(--font-display); font-weight: 640; font-size: var(--step-6);
  line-height: 0.95; letter-spacing: -0.02em; color: oklch(93% 0.008 85 / 0.16);
  margin-block: var(--space-l) var(--space-m); user-select: none;
}
.footer .legal { display: flex; flex-wrap: wrap; gap: var(--space-s); justify-content: space-between; color: var(--ink-3); font-size: var(--step--2); border-top: 1px solid var(--line-soft); padding-block-start: var(--space-s); }

/* ---- 22. Page transitions + reveals ---------------------------------------- */
@view-transition { navigation: auto; }
@media (prefers-reduced-motion: no-preference) {
  .reveal { opacity: 0; transform: translateY(22px); }
  .reveal.is-in {
    opacity: 1; transform: none;
    transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out);
    transition-delay: var(--reveal-delay, 0ms);
  }
  .reveal-l { opacity: 0; transform: translateX(-26px); }
  .reveal-l.is-in { opacity: 1; transform: none; transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out); transition-delay: var(--reveal-delay, 0ms); }
  /* staggered entrances for grids */
  .stagger > * { opacity: 0; transform: translateY(18px); }
  .stagger.is-in > * { opacity: 1; transform: none; }
  .stagger.is-in > *:nth-child(1) { transition: opacity 620ms var(--ease-out) 0ms, transform 620ms var(--ease-out) 0ms; }
  .stagger.is-in > *:nth-child(2) { transition: opacity 620ms var(--ease-out) 80ms, transform 620ms var(--ease-out) 80ms; }
  .stagger.is-in > *:nth-child(3) { transition: opacity 620ms var(--ease-out) 160ms, transform 620ms var(--ease-out) 160ms; }
  .stagger.is-in > *:nth-child(4) { transition: opacity 620ms var(--ease-out) 240ms, transform 620ms var(--ease-out) 240ms; }
  .stagger.is-in > *:nth-child(5) { transition: opacity 620ms var(--ease-out) 320ms, transform 620ms var(--ease-out) 320ms; }
  .stagger.is-in > *:nth-child(6) { transition: opacity 620ms var(--ease-out) 400ms, transform 620ms var(--ease-out) 400ms; }
  /* shutter iris: frames open like a lens when they enter */
  .iris { clip-path: circle(4% at 50% 50%); transition: clip-path 900ms var(--ease-out); transition-delay: var(--reveal-delay, 0ms); }
  .iris.is-in { clip-path: circle(75% at 50% 50%); }
  /* safelight wash: slow ambient light sweep over section frames */
  .wash { position: relative; overflow: hidden; }
  .wash::after {
    content: ""; position: absolute; inset: -40%;
    background: radial-gradient(45% 60% at 30% 40%, oklch(55% 0.16 40 / 0.13), transparent 70%);
    animation: wash 14s ease-in-out infinite alternate; pointer-events: none;
  }
  @keyframes wash { from { transform: translateX(-12%) rotate(-4deg); } to { transform: translateX(14%) rotate(3deg); } }
}

/* scroll-driven enhancements where supported */
@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    .scroll-grow { animation: scroll-grow both linear; animation-timeline: view(); animation-range: entry 10% cover 42%; }
    @keyframes scroll-grow { from { opacity: 0; transform: translateY(30px) scale(0.985); } to { opacity: 1; transform: none; } }
    .scroll-wipe { animation: scroll-wipe both linear; animation-timeline: view(); animation-range: entry 0% cover 40%; }
    @keyframes scroll-wipe { from { clip-path: inset(0 100% 0 0); } to { clip-path: inset(0 0 0 0); } }
    .meter-fill { animation: meter both linear; animation-timeline: view(); animation-range: entry 20% cover 45%; }
    @keyframes meter { from { transform: scaleX(0); } to { transform: scaleX(1); } }
  }
}

/* ---- 23. Meters ------------------------------------------------------------- */
.meter { display: grid; gap: 0.3rem; }
.meter .track { height: 6px; background: var(--paper-deep); border-radius: 999px; overflow: hidden; border: 1px solid var(--line-soft); }
.meter .fill { height: 100%; transform-origin: left; background: linear-gradient(90deg, var(--safelight-deep), var(--safelight), var(--gold)); transform: scaleX(var(--pct, 1)); }
.meter .label { display: flex; justify-content: space-between; font-size: var(--step--2); color: var(--ink-3); font-variant-numeric: tabular-nums; }

/* ---- 24. Page-head / breadcrumbs --------------------------------------------- */
.page-head { padding-block: var(--space-xl) var(--space-l); border-block-end: 1px solid var(--line-soft); }
.page-head h1 { font-size: var(--step-4); margin-block: var(--space-2xs); }
.crumbs { font-size: var(--step--2); color: var(--ink-3); display: flex; gap: 0.5em; flex-wrap: wrap; }
.crumbs a { color: var(--ink-3); }
.crumbs a:hover { color: var(--safelight-hi); }
.crumbs [aria-current="page"] { color: var(--gold-dim); }

/* ---- 25. Empty / loading / error states ---------------------------------------- */
.empty {
  border: 1px dashed var(--line); border-radius: var(--radius-m);
  padding: var(--space-l); text-align: center; color: var(--ink-3);
}
.empty .glyph { font-family: var(--font-display); font-size: var(--step-3); color: var(--line); }
.skeleton {
  border-radius: var(--radius-s); background: linear-gradient(90deg, var(--paper-2) 25%, var(--paper-3) 50%, var(--paper-2) 75%);
  background-size: 200% 100%; animation: skeleton 1.4s ease infinite;
}
@keyframes skeleton { to { background-position: -200% 0; } }
.callout { border-left: 3px solid var(--safelight); background: var(--paper-2); padding: var(--space-s) var(--space-m); border-radius: 0 var(--radius-s) var(--radius-s) 0; }
.callout.warn { border-left-color: var(--warn); }

/* ---- 26. Kbd / misc -------------------------------------------------------------- */
.kbd {
  font-family: var(--font-body); font-size: 0.72em; padding: 0.2em 0.5em;
  border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 4px;
  background: var(--paper-2); color: var(--ink-2);
}
hr.rule { border: 0; border-top: 1px solid var(--line-soft); margin-block: var(--space-l); }
.nowrap { white-space: nowrap; }
.mt-l { margin-block-start: var(--space-l); }

/* ---- 27. Print --------------------------------------------------------------------- */
@media print {
  .grain, .site-header, .ticker, .toasts, .btn, .nav-toggle, .footer .bigmark, .wash::after { display: none !important; }
  body { background: white; color: black; }
  a { color: black; text-decoration: underline; }
  .footer { border-top: 1px solid #999; }
}

/* ---- 28. Extended components --------------------------------------------- */
/* 28a. Hero secondary variant (interior pages) */
.hero-slim {
  padding-block: var(--space-xl) var(--space-l);
  background: linear-gradient(180deg, var(--paper-2), transparent);
}
.hero-slim h1 { font-size: var(--step-4); }

/* 28b. Split feature rows */
.feature-row {
  display: grid; gap: var(--space-l); align-items: center;
}
@media (min-width: 56rem) {
  .feature-row { grid-template-columns: 1fr 1fr; }
  .feature-row.flip > :first-child { order: 2; }
}
.feature-row h2 { font-size: var(--step-2); margin-block-end: var(--space-2xs); }
.feature-row .art {
  border: 1px solid var(--line); border-radius: var(--radius-m);
  background: var(--paper-deep); padding: var(--space-s);
}

/* 28c. Quote band */
.quote-band {
  border-block: 1px solid var(--line-soft); background: var(--paper-2);
  padding-block: var(--space-xl);
}
.quote-band blockquote {
  font-family: var(--font-display); font-style: italic; font-weight: 350;
  font-size: var(--step-3); max-width: 30ch; line-height: 1.25;
}
.quote-band cite {
  display: block; margin-block-start: var(--space-s);
  font-family: var(--font-body); font-style: normal; font-size: var(--step--2);
  letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-3);
}

/* 28d. Steps rail (drop-off guide) */
.rail { display: grid; gap: var(--space-s); }
.rail .rung {
  display: grid; grid-template-columns: 2.2rem 1fr; gap: var(--space-s);
  padding: var(--space-s) 0; border-block-end: 1px solid var(--line-soft);
}
.rail .rung .dot {
  width: 2.2rem; height: 2.2rem; border-radius: 50%;
  border: 1px solid var(--safelight-deep); color: var(--safelight-hi);
  display: grid; place-items: center; font-size: var(--step--2); font-weight: 600;
}
.rail .rung h3 { font-size: var(--step-0); font-family: var(--font-body); font-weight: 600; }
.rail .rung p { color: var(--ink-2); font-size: var(--step--1); max-width: 58ch; }

/* 28e. Notice board (postings) */
.notice-board { display: grid; gap: var(--space-s); }
.notice {
  padding: var(--space-m); border: 1px solid var(--line); border-radius: var(--radius-m);
  background:
    repeating-linear-gradient(-45deg, transparent 0 14px, oklch(100% 0 0 / 0.015) 14px 28px),
    var(--paper-2);
}
.notice h3 { font-size: var(--step-1); display: flex; justify-content: space-between; gap: var(--space-s); flex-wrap: wrap; }
.notice time { color: var(--ink-3); font-size: var(--step--2); letter-spacing: 0.1em; text-transform: uppercase; }
.notice p { color: var(--ink-2); font-size: var(--step--1); max-width: 64ch; }

/* 28f. Workshop schedule table */
.session-table { width: 100%; border-collapse: collapse; font-size: var(--step--1); }
.session-table th, .session-table td { padding: 0.65em 0.8em; border-block-end: 1px solid var(--line-soft); text-align: left; }
.session-table tbody tr:hover { background: oklch(100% 0 0 / 0.035); }
.session-table .seats-left { color: var(--safelight-hi); font-variant-numeric: tabular-nums; }
.session-table .seats-out { color: var(--ink-3); }
.session-table th[scope="col"] { font-size: var(--step--2); letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-3); }

/* 28g. Tag list under headings */
.tag-row { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-block-start: var(--space-2xs); }

/* 28h. Numbered footer contact strip */
.contact-strip {
  display: flex; flex-wrap: wrap; gap: var(--space-m); align-items: baseline;
  padding: var(--space-m) 0; border-block: 1px solid var(--line-soft);
  margin-block: var(--space-l);
}
.contact-strip .big {
  font-family: var(--font-display); font-size: var(--step-2); font-weight: 560; color: var(--gold);
}
.contact-strip .small { color: var(--ink-3); font-size: var(--step--2); letter-spacing: 0.12em; text-transform: uppercase; }

/* 28i. Skip-list (links block on 404) */
.link-grid { display: grid; gap: var(--space-2xs); grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr)); }
.link-grid a {
  padding: 0.8em 1em; border: 1px solid var(--line); border-radius: var(--radius-s);
  text-decoration: none; color: var(--ink-2); font-size: var(--step--1);
  transition: border-color var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}
.link-grid a:hover { border-color: var(--safelight-deep); color: var(--safelight-hi); transform: translateY(-2px); }

/* 28j. Data definition strips */
.dd-strip { display: grid; gap: var(--space-2xs); }
.dd-strip > div {
  display: flex; justify-content: space-between; gap: var(--space-s);
  border-block-end: 1px solid var(--line-soft); padding-block: 0.4em;
  font-size: var(--step--1);
}
.dd-strip dt { color: var(--ink-3); font-size: var(--step--2); letter-spacing: 0.1em; text-transform: uppercase; align-self: center; }
.dd-strip dd { color: var(--ink); font-variant-numeric: tabular-nums; text-align: right; }

/* 28k. Amber highlight marker */
.mark-safelight {
  background: linear-gradient(transparent 55%, oklch(64% 0.16 45 / 0.35) 55%);
  padding-inline: 0.1em;
}

/* 28l. Print-order mini form inline card */
.inline-card {
  display: grid; gap: var(--space-s); padding: var(--space-m);
  border: 1px solid var(--line); border-radius: var(--radius-m); background: var(--paper-2);
  max-width: 34rem;
}

/* 28m. Screen-reader-friendly form summary */
.form-summary { font-size: var(--step--2); color: var(--ink-3); }
.form-summary:empty { display: none; }

/* 28n. Keyboard hint inline */
.kbd-hint { color: var(--ink-3); font-size: var(--step--2); }

/* 28o. Focus ring for cells on keyboard nav */
.sheet .cell:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }

/* 28p. Reduced-motion: kill ticker + wash entirely */
@media (prefers-reduced-motion: reduce) {
  .ticker-track { animation: none; }
  .grain { opacity: 0.04; }
  .wash::after { display: none; }
  html { scroll-behavior: auto; }
}

/* 28q. Small-screen adjustments */
@media (max-width: 34rem) {
  .hero-meta { gap: var(--space-m); }
  .stat b { font-size: var(--step-2); }
  .quote-band blockquote { font-size: var(--step-2); }
  .footer .bigmark { font-size: var(--step-4); }
  .stage { grid-template-columns: 2.4rem 1fr; }
  .ba .before-label, .ba .after-label { font-size: 0.6rem; }
}

/* 28r. Wide-screen polish */
@media (min-width: 90rem) {
  .wrap { max-width: 82rem; }
  .hero h1 { font-size: var(--step-6); }
}

/* 28s. Selection + scrollbar details for webkit */
::-webkit-scrollbar { width: 12px; }
::-webkit-scrollbar-track { background: var(--paper-deep); }
::-webkit-scrollbar-thumb { background: var(--line); border-radius: 6px; border: 2px solid var(--paper-deep); }
::-webkit-scrollbar-thumb:hover { background: var(--safelight-deep); }

/* 28t. Motion-safe hover lift on emulsion + card only when fine pointer */
@media (hover: none) {
  .card:hover, .emulsion:hover { transform: none; }
}

/* 28u. Daylight easter egg: pressing D briefly raises paper brightness */
html.daylight {
  --paper: oklch(88% 0.015 80);
  --paper-2: oklch(92% 0.012 80);
  --paper-3: oklch(95% 0.01 80);
  --paper-deep: oklch(80% 0.015 80);
  --ink: oklch(22% 0.02 70);
  --ink-2: oklch(34% 0.02 70);
  --ink-3: oklch(46% 0.02 70);
  --line: oklch(72% 0.02 80);
  --line-soft: oklch(80% 0.015 80);
  color-scheme: light;
}