/* ==========================================================================
   CityLayers: London, public site styles
   Built on the CityLayers design system (cyanotype direction, Night theme).
   Tokens mirror tokens.json; only the Night theme is used on the web site.
   ========================================================================== */

/* ---------- Tokens ---------- */
:root {
  /* Colour (Night theme) */
  --night: #0b1a2b;
  --ground: #0b1a2b;
  --surface: #122a44;
  --surface-sunk: #081421;
  --hairline: #23405f;
  --ink: #eaf0f4;
  --ink-muted: #93a8bc;
  --cyanotype: #4f8db8;
  --on-cyanotype: #0b1a2b;
  --cyanotype-deep: #1f5f8b;
  --stratum-deep: #163f63;
  --paper: #f2f5f3;
  --lightleak: #ff8a4c;          /* One per screen: here, the "you are here" dot. */
  --on-lightleak: #1a0e06;
  --era-roman: #e07a5f;
  --era-1500: #9ccb7a;
  --focus: #f2f5f3;

  /* Type families */
  --font-display: Newsreader, "New York", Georgia, serif;
  --font-ui: Figtree, -apple-system, system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", monospace;

  /* Space */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-6: 24px;
  --space-8: 32px;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-pill: 999px;          /* Small capsules only: pills and chips. */

  --shadow-sheet: 0 12px 32px rgba(3, 10, 18, 0.55);

  /* Layout */
  --gutter: clamp(16px, 5vw, 56px);
  --measure: 65ch;
  --page-max: 1200px;

  color-scheme: dark;
}

/* ---------- Base ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font: 400 17px/1.6 var(--font-ui);
  font-optical-sizing: auto;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img,
svg { display: block; max-width: 100%; }

a {
  color: var(--cyanotype);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}
a:hover { color: var(--ink); }

:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
  border-radius: 2px;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 400;
  margin: 0;
  text-wrap: balance;
}
p { margin: 0; text-wrap: pretty; }

.wrap {
  width: 100%;
  max-width: var(--page-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -100px;
  z-index: 10;
  background: var(--paper);
  color: var(--night);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  font-weight: 600;
  text-decoration: none;
}
.skip-link:focus { top: var(--space-4); }

/* Type roles */
.figure {
  font: 500 13px/16px var(--font-mono);
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
}
.era {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
}
.eyebrow {
  font: 500 13px/16px var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
}
.muted { color: var(--ink-muted); }

/* ---------- Header ---------- */
.site-header {
  position: relative;
  z-index: 2;
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: 76px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--ink);
  text-decoration: none;
  font: 400 26px/1 var(--font-display);
  letter-spacing: -0.01em;
}
.brand img {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  /* A hairline edges the icon on the night ground. */
  box-shadow: 0 0 0 1px var(--hairline);
}
.brand:hover { color: var(--ink); }

.site-nav ul {
  display: flex;
  gap: clamp(var(--space-3), 2.4vw, var(--space-8));
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-nav a {
  color: var(--ink-muted);
  text-decoration: none;
  font: 600 14px/44px var(--font-ui);
  letter-spacing: 0.01em;
  display: inline-block;
}
.site-nav a:hover,
.site-nav a[aria-current="page"] { color: var(--ink); }
@media (max-width: 720px) {
  .site-nav .nav-wide { display: none; }
}

/* ---------- Strata (the ground cut into layers, deepest oldest) ---------- */
.strata {
  display: grid;
  grid-template-rows: var(--s1, 56px) var(--s2, 46px) var(--s3, 84px);
  row-gap: var(--seam, 10px);
  background: var(--night);
}
.strata > span:nth-child(1) { background: var(--cyanotype); }
.strata > span:nth-child(2) { background: var(--cyanotype-deep); }
.strata > span:nth-child(3) { background: var(--stratum-deep); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  /* Braun and Hogenberg's 1572 map of London behind the hero, under the night: darkest behind the words, the map
     showing through most on the right, and fading into the ground at the bottom so the strata sit on night. */
  background:
    linear-gradient(to top, var(--ground) 0%, rgba(11, 26, 43, 0) 28%),
    linear-gradient(90deg, rgba(11, 26, 43, 0.94) 0%, rgba(11, 26, 43, 0.82) 42%, rgba(11, 26, 43, 0.5) 100%),
    image-set(url("/assets/img/hero/map-1572-1800.webp") type("image/webp"), url("/assets/img/hero/map-1572-1400.jpg") type("image/jpeg")) center 40% / cover no-repeat,
    var(--ground);
}
@media (max-width: 760px) {
  /* On a phone the words sit over the whole map, so it stays dimmer and loads a smaller file. */
  .hero {
    background:
      linear-gradient(to top, var(--ground) 0%, rgba(11, 26, 43, 0) 30%),
      linear-gradient(rgba(11, 26, 43, 0.84), rgba(11, 26, 43, 0.84)),
      image-set(url("/assets/img/hero/map-1572-1000.webp") type("image/webp"), url("/assets/img/hero/map-1572-1400.jpg") type("image/jpeg")) center / cover no-repeat,
      var(--ground);
  }
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  align-items: end;
  gap: clamp(var(--space-8), 5vw, 80px);
  padding-top: clamp(24px, 6vw, 72px);
}
.hero-copy { padding-bottom: clamp(40px, 7vw, 96px); }
.hero-icon {
  width: clamp(72px, 9vw, 104px);
  height: auto;
  border-radius: 23%;
  box-shadow: 0 0 0 1px var(--hairline);
  margin-bottom: var(--space-6);
}
/* The name is "CityLayers: London" and breaks after the colon; the size keeps "CityLayers:" (about 4.8em wide) inside
   the hero column at every width, so it never runs under the view of Cheapside. */
.hero h1 {
  font-size: clamp(52px, 8vw, 116px);
  line-height: 0.9;
  letter-spacing: -0.025em;
  margin-left: -0.04em;
}
.tagline {
  margin-top: var(--space-4);
  font: italic 400 clamp(22px, 2.6vw, 30px)/1.25 var(--font-display);
  color: var(--paper);
}
.lede {
  margin-top: var(--space-6);
  max-width: 34ch;
  font-size: clamp(17px, 1.6vw, 19px);
  color: var(--ink-muted);
}
.lede strong { color: var(--ink); font-weight: 500; }

/* The "coming soon" pill: a quiet outlined capsule, never a fake store badge. */
.soon {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-3);
  margin-top: var(--space-8);
  padding: var(--space-3) var(--space-6);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-pill);
  background: var(--surface);
  font: 600 14px/20px var(--font-ui);
  letter-spacing: 0.01em;
}
.soon .figure { color: var(--ink-muted); }

/* The view: Cheapside in 1500 in a plain rounded frame, standing clear of the strata. */
.hero-view {
  position: relative;
  margin: 0 0 clamp(40px, 7vw, 96px);  /* Same as the copy column, so the frame and the pill end on one line. */
  justify-self: center;
  width: min(100%, 460px);
}
.hero-view-frame {
  position: relative;
  aspect-ratio: 460 / 600;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--night);
  box-shadow:
    0 0 0 1px rgba(242, 245, 243, 0.22),
    0 24px 64px rgba(3, 10, 18, 0.55);
}
.hero-view-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-view figcaption {
  position: absolute;
  left: 50%;
  bottom: var(--space-4);
  transform: translateX(-50%);
  white-space: nowrap;
  padding: 6px var(--space-3);
  border-radius: var(--radius-pill);
  background: rgba(18, 42, 68, 0.85);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  color: var(--ink);
}
.hero-view figcaption .era { color: var(--ink-muted); font-size: 15px; margin-left: var(--space-2); }

.hero .strata {
  --s1: clamp(28px, 4.2vw, 56px);
  --s2: clamp(22px, 3.4vw, 46px);
  --s3: clamp(40px, 6.2vw, 84px);
  --seam: clamp(6px, 0.8vw, 10px);
}

/* The past fades in; it does not fly in. */
@media (prefers-reduced-motion: no-preference) {
  .hero-view-frame img { animation: fade-in 400ms ease-out 200ms both; }
}
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }

@media (max-width: 820px) {
  .hero-grid { grid-template-columns: 1fr; gap: var(--space-8); }
  .hero-copy { padding-bottom: 0; }
  .hero-view { width: min(78%, 360px); }
}

/* ---------- Sections ---------- */
.section { padding-block: clamp(72px, 11vw, 144px); }
.section-head { max-width: 40rem; margin-bottom: clamp(40px, 6vw, 72px); }
.section-head h2 {
  margin-top: var(--space-3);
  font-size: clamp(38px, 5.4vw, 64px);
  line-height: 1.02;
  letter-spacing: -0.015em;
}
.section-head p {
  margin-top: var(--space-4);
  color: var(--ink-muted);
  font-size: clamp(17px, 1.6vw, 19px);
  max-width: var(--measure);
}

/* ---------- How it works ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(48px, 6vw, 80px) clamp(32px, 5vw, 72px);
  list-style: none;
  margin: 0;
  padding: 0;
}
.step {
  border-top: 1px solid var(--hairline);
  padding-top: var(--space-6);
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  gap: var(--space-3);
}
.step h3 {
  font-size: clamp(26px, 2.8vw, 34px);
  line-height: 1.1;
  font-weight: 400;
}
.step p { color: var(--ink-muted); max-width: 46ch; }
.step p strong { color: var(--ink); font-weight: 500; }
.step-art { margin-top: var(--space-4); }
@media (max-width: 760px) {
  .steps { grid-template-columns: 1fr; }
}

/* Status pill (from the app) */
.pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-pill);
  font: 600 13px/18px var(--font-ui);
  letter-spacing: 0.01em;
  border: 1px solid transparent;
  white-space: nowrap;
}
.pill svg {
  width: 14px; height: 14px;
  stroke: currentColor; fill: none;
  stroke-width: 2; stroke-linecap: round; stroke-linejoin: round;
}
.pill-locked { background: var(--cyanotype); color: var(--on-cyanotype); }
.pill-locked svg { fill: currentColor; }
.pill-aligning { background: var(--surface); color: var(--ink); border-color: var(--hairline); }
.pill-quiet { background: var(--surface); color: var(--ink); border-color: var(--hairline); border-radius: var(--radius-md); padding: 10px var(--space-4); }
.pill-row { display: flex; flex-wrap: wrap; gap: var(--space-3); align-items: center; }

/* True depth section drawing */
.depth svg { width: 100%; height: auto; max-width: 520px; }
.depth .lbl { font: 500 13px var(--font-mono); letter-spacing: 0.02em; fill: var(--ink); }
.depth .lbl-muted { font: 500 13px var(--font-mono); letter-spacing: 0.02em; fill: var(--ink-muted); }

/* Map sketch */
.map-sketch svg { width: 100%; height: auto; max-width: 520px; border-radius: var(--radius-md); }
.map-sketch .lbl-muted { font: 500 13px var(--font-mono); letter-spacing: 0.02em; fill: var(--ink-muted); }

/* ---------- Levels ---------- */
.levels {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(var(--space-4), 3vw, 40px);
  list-style: none;
  margin: 0;
  padding: 0;
}
@media (max-width: 760px) {
  .levels { grid-template-columns: 1fr; }
}
.level {
  --tint: var(--cyanotype);
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: clamp(var(--space-3), 1.6vw, 20px) clamp(var(--space-3), 1.6vw, 20px) clamp(var(--space-6), 3vw, 36px);
  display: flex;
  flex-direction: column;
}
.level-roman { --tint: var(--era-roman); }
.level-1500 { --tint: var(--era-1500); }

/* The picture on the card: a view of the layer, its horizon lit by the layer's tint
   and the ground beneath cut into strata (tint, cyanotype-deep, stratum-deep). The radius sits inside the card's. */
.level-view {
  position: relative;
  aspect-ratio: 5 / 4;
  border-radius: var(--radius-md);
  background: var(--night);
  overflow: hidden;
}
.level-view img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.level-view .glow {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, color-mix(in srgb, var(--tint) 30%, transparent) 0, transparent 30%);
}
.level-view .b { position: absolute; left: 0; right: 0; }
.level-view .b1 { bottom: 26px; height: 12px; background: var(--tint); }
.level-view .b2 { bottom: 10px; height: 10px; background: var(--cyanotype-deep); }
.level-view .b3 { bottom: 0; height: 6px; background: var(--stratum-deep); }
.level-view .b1::after {
  /* Night seam under the tinted band. */
  content: ""; position: absolute; left: 0; right: 0; top: 100%; height: 6px; background: var(--night);
}

.level-body { padding-inline: clamp(var(--space-2), 1.4vw, 20px); }
.level h3 {
  margin-top: var(--space-6);
  font-size: clamp(44px, 5vw, 60px);
  line-height: 1;
  letter-spacing: -0.015em;
}
.level .year {
  display: block;
  margin-top: var(--space-3);
  font: 500 15px/20px var(--font-mono);
  letter-spacing: 0.02em;
  color: var(--ink-muted);
}
.level .era {
  display: block;
  margin-top: var(--space-1);
  font-size: clamp(21px, 2vw, 25px);
  line-height: 1.25;
  color: var(--ink-muted);
}
.level-desc { margin-top: var(--space-4); color: var(--ink-muted); max-width: 44ch; }
.level-facts {
  margin: var(--space-6) 0 0;
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: var(--space-3) var(--space-4);
  border-top: 1px solid var(--hairline);
  padding-top: var(--space-4);
}
.level-facts dt {
  font: 500 12px/22px var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
}
.level-facts dd { margin: 0; }
.price {
  font: 600 17px/22px var(--font-ui);
}
.price-note { color: var(--ink-muted); font-size: 15px; }
@media (max-width: 400px) {
  .level-facts { grid-template-columns: 1fr; gap: 2px; }
  .level-facts dd + dt { margin-top: var(--space-3); }
}

/* ---------- Gallery ---------- */
.gallery-section { background: var(--surface-sunk); }
.gallery {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: clamp(220px, 26vw, 300px);
  gap: clamp(var(--space-4), 2.5vw, 36px);
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory;
  --gallery-inset: max(var(--gutter), calc((100% - var(--page-max)) / 2 + var(--gutter)));
  scroll-padding-inline: var(--gallery-inset);
  padding: var(--space-2) var(--gallery-inset) var(--space-8);
  margin: 0;
  list-style: none;
  scrollbar-color: var(--hairline) transparent;
}
.gallery:focus-visible { outline-offset: -2px; }
.gallery li { scroll-snap-align: start; }
.gallery figure { margin: 0; }
.shot {
  border-radius: clamp(22px, 2.6vw, 30px);
  border: 1px solid var(--hairline);
  overflow: hidden;
  background: var(--night);
  aspect-ratio: 1320 / 2868;
}
.shot img { width: 100%; height: 100%; object-fit: cover; }
.gallery figcaption { margin-top: var(--space-4); }
.gallery figcaption strong {
  display: block;
  font: 400 22px/1.2 var(--font-display);
  color: var(--ink);
  text-wrap: balance;
}
.gallery figcaption span {
  display: block;
  margin-top: var(--space-1);
  font-size: 15px;
  line-height: 1.45;
  color: var(--ink-muted);
}
.gallery-hint { margin-top: var(--space-2); }

/* ---------- More cities ---------- */
/* A row of layer tiles on a cyanotype rule: the two open layers lit in their tints over a little strata,
   the ones to come outlined in dashes and fading into the distance. */
.layer-row {
  display: flex;
  align-items: flex-end;
  gap: clamp(10px, 2.2vw, 28px);
  border-bottom: 2px solid var(--cyanotype);
  padding: 0 var(--space-2) clamp(10px, 1.4vw, 16px);
  margin-bottom: var(--space-8);
  overflow: hidden;
}
.layer-tile {
  --tint: var(--hairline);
  flex: 0 0 auto;
  width: clamp(44px, 8vw, 96px);
  aspect-ratio: 3 / 4;
  border-radius: clamp(8px, 1.1vw, 12px);
  border: 1px solid var(--hairline);
  background: var(--night);
  position: relative;
  overflow: hidden;
}
.layer-tile.lit {
  background:
    linear-gradient(to top,
      var(--stratum-deep) 0 9%,
      var(--cyanotype-deep) 9% 19%,
      var(--night) 19% 23%,
      var(--tint) 23% 34%,
      color-mix(in srgb, var(--tint) 22%, transparent) 34%,
      transparent 62%),
    var(--night);
}
.layer-tile.roman { --tint: var(--era-roman); }
.layer-tile.late { --tint: var(--era-1500); }
.layer-tile.unlit { border-style: dashed; background: transparent; }
.layer-tile:nth-child(4) { width: clamp(38px, 6.5vw, 80px); }
.layer-tile:nth-child(5) { width: clamp(34px, 5.5vw, 70px); opacity: 0.8; }
.layer-tile:nth-child(6) { width: clamp(30px, 4.5vw, 60px); opacity: 0.6; }
.layer-tile:nth-child(7) { width: clamp(26px, 3.8vw, 50px); opacity: 0.4; }

.more-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(var(--space-8), 5vw, 72px);
  align-items: start;
}
.more-grid h2 {
  font-size: clamp(38px, 5.4vw, 64px);
  line-height: 1.02;
  letter-spacing: -0.015em;
}
.more-grid p { color: var(--ink-muted); font-size: clamp(17px, 1.6vw, 19px); max-width: var(--measure); }
.more-grid p + p { margin-top: var(--space-4); }
@media (max-width: 760px) { .more-grid { grid-template-columns: 1fr; } }

/* ---------- Availability ---------- */
.available {
  text-align: center;
  display: grid;
  justify-items: center;
  gap: var(--space-4);
}
.available img { width: 88px; height: 88px; border-radius: 23%; box-shadow: 0 0 0 1px var(--hairline); }
.available h2 {
  font-size: clamp(34px, 4.6vw, 52px);
  line-height: 1.05;
  letter-spacing: -0.01em;
  margin-top: var(--space-2);
}
.available p { color: var(--ink-muted); max-width: 48ch; }
.store-slot {
  margin-top: var(--space-4);
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: var(--space-4) var(--space-8);
  border: 1px dashed var(--hairline);
  border-radius: var(--radius-md);
  min-width: min(100%, 280px);
}
.store-slot strong { font: 600 16px/22px var(--font-ui); }
.store-slot span { color: var(--ink-muted); }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--surface-sunk);
  border-top: 1px solid var(--hairline);
  padding-block: clamp(40px, 6vw, 64px);
  font-size: 15px;
}
.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(2, minmax(0, 1fr));
  gap: var(--space-8);
}
.footer-grid h2 {
  font: 500 12px/16px var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: var(--space-3);
}
.footer-grid ul { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--space-1); }
.footer-grid a { color: var(--ink); text-decoration: none; line-height: 32px; }
.footer-grid a:hover { color: var(--cyanotype); text-decoration: underline; }
.footer-brand p { color: var(--ink-muted); margin-top: var(--space-3); max-width: 36ch; }
.footer-legal {
  margin-top: var(--space-8);
  padding-top: var(--space-4);
  border-top: 1px solid var(--hairline);
  color: var(--ink-muted);
  font-size: 13px;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-6);
  justify-content: space-between;
}
@media (max-width: 720px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

/* The single contact element (filled from assets/js/config.js). */
[data-contact] { color: var(--ink); }
[data-contact] a { color: var(--cyanotype); }

/* ---------- Document pages (privacy, support, credits) ---------- */
.doc-head {
  padding-top: clamp(32px, 7vw, 88px);
  padding-bottom: clamp(32px, 5vw, 56px);
  border-bottom: 1px solid var(--hairline);
}
.doc-head .wrap { display: grid; gap: var(--space-4); }
.doc-head h1 {
  font-size: clamp(46px, 7.5vw, 88px);
  line-height: 0.98;
  letter-spacing: -0.02em;
}
.doc-head p { color: var(--ink-muted); font-size: clamp(17px, 1.7vw, 20px); max-width: 52ch; }
/* The page mark: a small block of paper over strata. */
.doc-mark {
  width: 44px;
  aspect-ratio: 4 / 5;
  border-radius: 10px;
  background: linear-gradient(var(--paper) 0 62%, var(--cyanotype) 62% 78%, var(--night) 78% 82%, var(--cyanotype-deep) 82% 100%);
}

.doc {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: clamp(var(--space-8), 6vw, 96px);
  padding-block: clamp(40px, 6vw, 80px) clamp(72px, 10vw, 128px);
}
.doc-toc { position: sticky; top: var(--space-8); align-self: start; }
.doc-toc h2 {
  font: 500 12px/16px var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: var(--space-3);
}
.doc-toc ol { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.doc-toc a { color: var(--ink-muted); text-decoration: none; font-size: 15px; line-height: 1.4; display: block; padding: 6px 0; }
.doc-toc a:hover { color: var(--ink); }
@media (max-width: 860px) {
  .doc { grid-template-columns: 1fr; }
  .doc-toc { position: static; border-bottom: 1px solid var(--hairline); padding-bottom: var(--space-6); }
}

.prose { max-width: var(--measure); }
.prose section { scroll-margin-top: var(--space-6); }
.prose section + section { margin-top: clamp(40px, 5vw, 56px); }
.prose h2 {
  font-size: clamp(28px, 3vw, 36px);
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-4);
}
.prose h3 {
  font: 600 17px/1.4 var(--font-ui);
  margin: var(--space-6) 0 var(--space-2);
}
.prose p,
.prose li { color: var(--ink-muted); }
.prose p + p { margin-top: var(--space-4); }
.prose strong { color: var(--ink); font-weight: 600; }
.prose ul,
.prose ol { padding-left: 1.2em; margin: var(--space-4) 0 0; }
.prose li + li { margin-top: var(--space-2); }
.prose li::marker { color: var(--cyanotype); }
.prose .lead { color: var(--ink); font-size: 19px; }

/* Credits list */
.credit-list { list-style: none; padding: 0 !important; margin: var(--space-6) 0 0 !important; border-top: 1px solid var(--hairline); }
.credit-list li {
  margin: 0 !important;
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--hairline);
  display: grid;
  gap: 2px;
}
.credit-list .title { font: 400 21px/1.3 var(--font-display); color: var(--ink); }
.credit-list .title a { color: var(--ink); }
.credit-list .title a:hover { color: var(--cyanotype); }
.credit-list .meta { font-size: 15px; }

/* 404 */
.lost { min-height: 60vh; display: grid; align-content: center; gap: var(--space-4); padding-block: 96px; }
.lost h1 { font-size: clamp(46px, 7.5vw, 88px); line-height: 1; }
.lost p { color: var(--ink-muted); max-width: 44ch; }

/* Spacing after lists inside prose, and the effective-date figure under a page title. */
.prose ul + p,
.prose ol + p { margin-top: var(--space-4); }
.doc-head p.figure { font-size: 14px; color: var(--ink-muted); }

/* The film */
.film-frame {
  aspect-ratio: 16 / 9;
  max-width: 100%;
  border-radius: 24px;
  overflow: hidden;
  background: var(--night);
  box-shadow: 0 0 0 1px var(--hairline);
}
.film-frame video { display: block; width: 100%; height: 100%; object-fit: cover; background: var(--night); }
.film-note { margin-top: 14px; opacity: 0.8; }