/* Somatic Canticles — landing page. Direction: the anatomical atlas.
   Every color, type, space, radius and motion value comes from the DESIGN.md token contract.
   Layout tokens and the one decorative alpha mix (--grid-line) are documented in DESIGN.md. */

:root {
  color-scheme: dark;

  /* Color: brand (bm-wiki Bioluminescent Architecture) */
  --void: #0A1628;
  --cream: #F0EDE3;
  --bronze: #C4873B;
  --titanium: #8A9BA8;
  --chlorophyll: #4A7C59;          /* graphic strokes only; never text */

  /* Color: derived (3 of 3) */
  --void-raised: #12233B;          /* cards, form fields */
  --bronze-bright: #D9A25E;        /* hover/active, focus ring */
  --chlorophyll-bright: #7DB38E;   /* text-safe living moments */

  /* Color: semantic aliases (no new values) */
  --bg: var(--void);
  --surface: var(--void-raised);
  --ink: var(--cream);
  --ink-meta: var(--titanium);
  --accent: var(--bronze);
  --accent-hover: var(--bronze-bright);
  --focus: var(--bronze-bright);
  --living: var(--chlorophyll);
  --living-ink: var(--chlorophyll-bright);
  --hairline: color-mix(in oklab, var(--titanium) 35%, transparent);
  --grid-line: color-mix(in oklab, var(--titanium) 9%, transparent);   /* decorative plate grid only */
  --bloom: color-mix(in oklab, var(--bronze) 18%, transparent);

  /* Type */
  --font-display: "Cinzel", "Trajan Pro", "Times New Roman", serif;
  --font-body: "EB Garamond", "Garamond", "Iowan Old Style", Georgia, serif;
  --font-mono: "Fira Code", ui-monospace, "SF Mono", Menlo, monospace;

  --step--1: clamp(0.8125rem, 0.77rem + 0.18vw, 0.9375rem);
  --step-0: clamp(1.0625rem, 1rem + 0.28vw, 1.25rem);
  --step-1: clamp(1.25rem, 1.15rem + 0.45vw, 1.5rem);
  --step-2: clamp(1.5rem, 1.25rem + 1.05vw, 2.25rem);
  --step-3: clamp(2rem, 1.55rem + 1.95vw, 3.5rem);
  --step-4: clamp(2.75rem, 1.9rem + 4.1vw, 6rem);

  --lh-display: 1.05;
  --lh-heading: 1.2;
  --lh-body: 1.6;
  --lh-prose: 1.7;
  --lh-label: 1.4;

  --measure: 66ch;
  --measure-narrow: 60ch;
  --measure-wide: 72ch;
  --track-display: 0.04em;
  --track-label: 0.08em;

  /* Space */
  --space-3xs: 0.25rem;
  --space-2xs: 0.5rem;
  --space-xs: 0.75rem;
  --space-s: 1rem;
  --space-m: 1.5rem;
  --space-l: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4.5rem;
  --space-section: clamp(4.5rem, 3rem + 6vw, 9rem);
  --gutter: clamp(1rem, 0.6rem + 1.8vw, 2.5rem);
  --page-max: 1320px;

  /* Radii */
  --radius-sm: 4px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-pill: 999px;

  /* Motion */
  --dur-fast: 160ms;
  --dur-base: 320ms;
  --dur-reveal: 900ms;
  --dur-drift: 24s;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-breath: cubic-bezier(0.37, 0, 0.63, 1);
  --parallax-max: 6%;
  --stagger: 120ms;

  /* Atlas layout (no colors) */
  --spine-w: clamp(12px, 0.5rem + 1vw, 32px);
  --grid-size: 48px;
  --crop-len: 14px;
  --page-w: 46rem;
  --thumb-w: 7.5rem;
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; background: var(--bg); }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: var(--lh-body);
  padding-left: var(--spine-w);
  overflow-x: clip;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
img, video, svg { display: block; max-width: 100%; }
img, video { height: auto; }
p { margin: 0; }
h1, h2, h3 { margin: 0; font-weight: 400; }
ol { margin: 0; padding: 0; list-style: none; }
blockquote { margin: 0; }
a { color: var(--accent); text-underline-offset: 0.2em; text-decoration-thickness: 1px; transition: color var(--dur-fast) var(--ease-out); }
a:hover { color: var(--accent-hover); }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; border-radius: var(--radius-sm); }
main:focus { outline: none; }
.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }

.skip-link {
  position: absolute; left: var(--space-s); top: var(--space-s); z-index: 100;
  background: var(--cream); color: var(--void);
  font-family: var(--font-mono); font-size: var(--step--1);
  padding: var(--space-2xs) var(--space-s); border-radius: var(--radius-sm);
  transform: translateY(-200%);
}
.skip-link:focus { transform: none; color: var(--void); }

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

/* ---------- shared atlas vocabulary ---------- */
.label, .eyebrow, .kicker, .plate-head, .caption, .book-meta, .member-role,
.helper, .provenance, .colophon, .hero-links, .attribution, .byline {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  line-height: var(--lh-label);
}
.eyebrow, .kicker, .label { text-transform: uppercase; letter-spacing: var(--track-label); color: var(--accent); }
.accent, .rubric { color: var(--accent); }
.nw { white-space: nowrap; }
@media (min-width: 601px) { .nw-lg { white-space: nowrap; } }

.plate { position: relative; padding-block: var(--space-section); isolation: isolate; }
.plate + .plate { border-top: 1px solid var(--hairline); }
/* hairline titanium grid, faded toward the edges */
.plate::before {
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: var(--grid-size) var(--grid-size);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 30%, transparent 100%);
          mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 30%, transparent 100%);
}

.plate-head {
  display: flex; align-items: center; gap: var(--space-xs);
  color: var(--ink-meta); text-transform: uppercase; letter-spacing: var(--track-label);
  margin-bottom: var(--space-l);
}
.plate-head .reg { width: 18px; height: 18px; flex: none; color: var(--accent); }
.plate-no { color: var(--accent); white-space: nowrap; }
.plate-rule { flex: 1 1 auto; height: 1px; background: var(--hairline); min-width: var(--space-l); }

/* measurement ruler: Plate II only */
.ruler-x {
  height: 12px; margin-top: calc(-1 * var(--space-s)); margin-bottom: var(--space-xl);
  background:
    repeating-linear-gradient(90deg, var(--titanium) 0 1px, transparent 1px 80px) left bottom / 100% 12px no-repeat,
    repeating-linear-gradient(90deg, var(--hairline) 0 1px, transparent 1px 8px) left bottom / 100% 5px no-repeat,
    linear-gradient(var(--hairline), var(--hairline)) left bottom / 100% 1px no-repeat;
}

/* registration crop marks at the four corners of a frame */
.specimen-frame, .page-stage { position: relative; }
.crop { position: absolute; width: var(--crop-len); height: var(--crop-len); pointer-events: none; }
.crop--tl { top: -8px; left: -8px; border-top: 1px solid var(--titanium); border-left: 1px solid var(--titanium); }
.crop--tr { top: -8px; right: -8px; border-top: 1px solid var(--titanium); border-right: 1px solid var(--titanium); }
.crop--bl { bottom: -8px; left: -8px; border-bottom: 1px solid var(--titanium); border-left: 1px solid var(--titanium); }
.crop--br { bottom: -8px; right: -8px; border-bottom: 1px solid var(--titanium); border-right: 1px solid var(--titanium); }

.section-title {
  font-family: var(--font-display); font-size: var(--step-3); line-height: var(--lh-display);
  letter-spacing: var(--track-display); text-transform: uppercase; text-wrap: balance;
  max-width: 22ch; margin-bottom: var(--space-l);
}
.section-title--wide { max-width: 34ch; }
.section-title--sub { font-size: var(--step-2); line-height: var(--lh-heading); }

/* ---------- spine: ECG scroll progress ---------- */
.spine {
  position: fixed; top: 0; bottom: 0; left: 0; width: var(--spine-w); z-index: 40;
  pointer-events: none;
  border-right: 1px solid var(--hairline);
  background: var(--void);
}
.spine-trace { position: absolute; inset: 0 12%; width: 76%; height: 100%; overflow: visible; }
.spine-trace path { fill: none; stroke: var(--titanium); stroke-width: 1; vector-effect: non-scaling-stroke; stroke-linejoin: round; opacity: 0.35; }
.spine-live { position: absolute; inset: 0; clip-path: inset(0 0 calc(100% - var(--p, 0) * 100%) 0); }
.spine-live path { stroke: var(--chlorophyll); stroke-width: 1.5; opacity: 1; }
.spine-cursor {
  position: absolute; left: 50%; top: 0; width: 7px; height: 7px; margin-left: -3.5px;
  border-radius: var(--radius-pill); background: var(--chlorophyll);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--chlorophyll) 30%, transparent);
  transform: translateY(calc(var(--p, 0) * (100vh - 7px)));
}
@supports (animation-timeline: scroll()) {
  .spine-live { animation: spine-draw linear both; animation-timeline: scroll(root block); }
  .spine-cursor { animation: spine-cursor linear both; animation-timeline: scroll(root block); }
}
@keyframes spine-draw { from { clip-path: inset(0 0 100% 0); } to { clip-path: inset(0 0 0 0); } }
@keyframes spine-cursor { from { transform: translateY(0); } to { transform: translateY(calc(100vh - 7px)); } }

/* ---------- hero (Plate I) ---------- */
.hero { padding-block: var(--space-m) var(--space-xl); overflow: hidden; }
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: -2; pointer-events: none;
  background: url("assets/bg-atmos.jpg") center / cover no-repeat;
  opacity: 0.22;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 95%);
          mask-image: linear-gradient(180deg, #000 0%, transparent 95%);
}
.topbar {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap;
  gap: var(--space-s) var(--space-l); padding-bottom: var(--space-l);
}
.mark { display: inline-flex; align-items: center; gap: var(--space-xs); color: var(--ink); text-decoration: none; }
.mark:hover { color: var(--ink); }
.mark-sigil { width: 26px; height: 26px; color: var(--accent); }
.mark-word { font-family: var(--font-display); font-weight: 700; font-size: var(--step-0); letter-spacing: var(--track-display); text-transform: uppercase; }
.topbar nav { display: flex; gap: var(--space-m); font-family: var(--font-mono); font-size: var(--step--1); text-transform: uppercase; letter-spacing: var(--track-label); }
.topbar nav a { color: var(--ink-meta); text-decoration: none; padding-block: var(--space-3xs); border-bottom: 1px solid transparent; }
.topbar nav a:hover { color: var(--accent-hover); border-bottom-color: currentColor; }

.hero-main {
  display: grid; gap: var(--space-l) var(--space-xl);
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  align-items: center;
}
.hero-body { display: grid; gap: var(--space-m); align-content: start; }
.hero-side { display: grid; gap: var(--space-l); align-content: start; }
.hero-title {
  font-family: var(--font-display); font-size: var(--step-4); line-height: var(--lh-display);
  letter-spacing: var(--track-display); text-transform: uppercase; font-weight: 400;
}
.h1-line { display: block; }
.hero-sub { font-size: var(--step-1); line-height: var(--lh-heading); max-width: var(--measure-narrow); color: var(--ink); }
.warning {
  padding: var(--space-xs) var(--space-s);
  border-left: 2px solid var(--living);
  background: color-mix(in oklab, var(--void-raised) 80%, transparent);
  max-width: var(--measure-narrow);
  font-style: italic;
}
.byline { color: var(--ink-meta); letter-spacing: 0.02em; max-width: var(--measure-narrow); }

.film { margin: 0; }
.film::before {
  content: ""; position: absolute; inset: -18% -12%; z-index: -1; pointer-events: none;
  background: radial-gradient(closest-side, var(--bloom), transparent);
  animation: breath var(--dur-drift) var(--ease-breath) infinite alternate;
}
@keyframes breath { from { opacity: 0.7; } to { opacity: 1; } }
.film-tile {
  position: relative; aspect-ratio: 16 / 9; overflow: hidden;
  border-radius: var(--radius-lg); background: var(--void-raised);
  border: 1px solid var(--hairline);
}
.film-media { width: 100%; height: 100%; object-fit: cover; }
.film-controls { position: absolute; right: var(--space-s); bottom: var(--space-s); display: flex; gap: var(--space-2xs); z-index: 1; }
.film-control {
  display: inline-flex; align-items: center; gap: var(--space-2xs);
  height: 44px; min-width: 44px; padding: 0 var(--space-xs);
  border: 1px solid var(--titanium); border-radius: var(--radius-pill);
  background: var(--void); color: var(--cream);
  font-family: var(--font-mono); font-size: var(--step--1); letter-spacing: var(--track-label); text-transform: uppercase;
  cursor: pointer; transition: border-color var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out);
}
.film-control:hover { border-color: var(--bronze-bright); color: var(--bronze-bright); }
.film-control svg { width: 18px; height: 18px; flex: none; }
.film-playback { padding: 0; justify-content: center; }
.film-playback .icon-play, .film-mute .icon-sound { display: none; }
.film-playback[data-mode="play"] .icon-play { display: block; }
.film-playback[data-mode="play"] .icon-pause { display: none; }
.film-mute[aria-pressed="false"] .icon-muted { display: none; }
.film-mute[aria-pressed="false"] .icon-sound { display: block; }
.film-mute[aria-pressed="false"] .film-mute-label { font-size: 0; }
.film-mute[aria-pressed="false"] .film-mute-label::after { content: "sound on"; font-size: var(--step--1); }

.hero-links { display: flex; flex-wrap: wrap; gap: var(--space-2xs) var(--space-l); letter-spacing: 0.02em; }
.hero-links a::before { content: "→ " / ""; }

/* ---------- form ---------- */
.join-form { display: grid; gap: var(--space-xs); }
.join-row { display: flex; gap: var(--space-2xs); flex-wrap: wrap; }
.join-row input {
  flex: 1 1 14rem; min-width: 0; height: 48px; padding: 0 var(--space-s);
  font: inherit; font-size: var(--step-0); color: var(--ink);
  background: var(--void-raised); border: 1px solid var(--titanium); border-radius: var(--radius-sm);
}
.join-row input::placeholder { color: var(--titanium); opacity: 1; }
.join-row input:focus-visible { outline-offset: 2px; border-color: var(--bronze-bright); }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px; padding: 0 var(--space-m); flex: 0 0 auto;
  font-family: var(--font-mono); font-size: var(--step--1); font-weight: 500;
  letter-spacing: var(--track-label); text-transform: uppercase; text-decoration: none;
  color: var(--void); background: var(--bronze);
  border: 1px solid var(--bronze); border-radius: var(--radius-sm); cursor: pointer;
  transition: background-color var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}
.btn:hover { background: var(--bronze-bright); border-color: var(--bronze-bright); color: var(--void); }
.btn--ghost { background: transparent; color: var(--living-ink); border-color: var(--titanium); }
.btn--ghost:hover { background: transparent; color: var(--bronze-bright); border-color: var(--bronze-bright); }
.helper { color: var(--ink-meta); }

/* ---------- books (Plate II) ---------- */
.specimens { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-2xl) var(--space-xl); }
.specimen { display: grid; gap: var(--space-m); align-content: start; }
.cover-frame { margin: 0; }
.cover-frame img {
  width: 100%; aspect-ratio: 720 / 1043; object-fit: cover;
  border-radius: var(--radius-sm);
  outline: 1px solid var(--hairline); outline-offset: -1px;
}
.specimen-card { display: grid; gap: var(--space-2xs); align-content: start; }
.book-meta {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-3xs) var(--space-s);
  text-transform: uppercase; letter-spacing: var(--track-label); color: var(--accent);
  padding-bottom: var(--space-2xs); border-bottom: 1px solid var(--hairline); margin-bottom: var(--space-3xs);
}
.book-meta span { white-space: nowrap; }
.book-meta span + span { color: var(--ink-meta); }
.book-title { font-family: var(--font-display); font-size: var(--step-1); line-height: var(--lh-heading); letter-spacing: var(--track-display); text-transform: uppercase; font-weight: 700; }
.oneliner { font-style: italic; font-size: var(--step-1); line-height: var(--lh-heading); }
.blurb { margin-top: var(--space-xs); border-top: 1px solid var(--hairline); }
.blurb summary {
  cursor: pointer; list-style: none; padding-block: var(--space-xs); min-height: 44px;
  font-family: var(--font-mono); font-size: var(--step--1); text-transform: uppercase; letter-spacing: var(--track-label);
  color: var(--accent); display: flex; justify-content: space-between; align-items: center;
}
.blurb summary::-webkit-details-marker { display: none; }
.blurb summary::after { content: "+" / ""; font-size: var(--step-0); color: var(--ink-meta); }
.blurb[open] summary::after { content: "−" / ""; }
.blurb summary:hover { color: var(--accent-hover); }
.blurb-body { display: grid; gap: var(--space-s); padding-bottom: var(--space-s); max-width: var(--measure); }

/* ---------- somanauts (Plate III) ---------- */
.lead-line {
  font-family: var(--font-display); font-size: var(--step-2); line-height: var(--lh-heading);
  letter-spacing: var(--track-display); text-transform: uppercase; text-wrap: balance;
  max-width: none;
}
.caption { color: var(--ink-meta); margin-top: var(--space-s); letter-spacing: 0.02em; }
.caption::before { content: "— " / ""; color: var(--accent); }
.crew {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0 var(--space-l); margin-top: var(--space-2xl);
  border-top: 1px solid var(--hairline);
}
.member {
  display: grid; grid-template-columns: 2.25rem minmax(0, 1fr);
  column-gap: var(--space-2xs); row-gap: var(--space-2xs); align-content: start;
  padding-block: var(--space-l);
}
.member > :not(.member-no) { grid-column: 2; }
.member > .trace { grid-column: 1 / -1; margin-bottom: var(--space-s); }
.member-no { grid-row: 2 / span 4; font-family: var(--font-mono); font-size: var(--step--1); color: var(--accent); padding-top: 0.5em; }
.trace { width: 100%; height: 40px; }
.trace path { fill: none; stroke: var(--chlorophyll); stroke-width: 1.5; vector-effect: non-scaling-stroke; stroke-linejoin: round; stroke-linecap: round; }
.member-name { font-family: var(--font-display); font-weight: 700; font-size: var(--step-2); line-height: var(--lh-heading); letter-spacing: var(--track-display); text-transform: uppercase; }
.member-verb { font-family: var(--font-body); font-weight: 400; font-style: italic; font-size: 0.72em; letter-spacing: 0; text-transform: none; color: var(--accent); margin-left: 0.15em; }
.member-role { text-transform: uppercase; letter-spacing: var(--track-label); color: var(--ink-meta); }
.member-line { max-width: 44ch; }
.member-axiom { margin-top: var(--space-2xs); font-style: italic; font-size: var(--step-1); line-height: var(--lh-heading); }

/* ---------- sample (Plate IV): a real book page. No motion here. ---------- */
.sample-kicker { margin-top: calc(-1 * var(--space-s)); }
.pull { max-width: var(--page-w); margin: var(--space-xl) auto var(--space-2xl); text-align: center; }
.pull p { font-style: italic; font-size: var(--step-2); line-height: var(--lh-heading); text-wrap: balance; }
.pull footer { margin-top: var(--space-s); font-family: var(--font-mono); font-size: var(--step--1); line-height: var(--lh-label); letter-spacing: 0.02em; color: var(--ink-meta); }
.page-stage { max-width: var(--page-w); margin-inline: auto; isolation: isolate; }
.page {
  position: relative;
  background: var(--cream); color: var(--void);
  padding: clamp(1.5rem, 1rem + 4vw, 5rem) clamp(1.25rem, 0.5rem + 4.5vw, 5.5rem) clamp(1.5rem, 1rem + 3vw, 3.5rem);
  border-radius: 2px;
  box-shadow: 0 1px 0 var(--titanium);
}
/* stacked leaves behind the page (opacity only; no new colors) */
.page::before, .page::after {
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background: var(--cream); border-radius: 2px;
}
.page::before { transform: translate(4px, 4px); opacity: 0.5; }
.page::after { transform: translate(8px, 8px); opacity: 0.25; }
.page a, .page em, .page strong { color: var(--void); }
.running-head {
  display: flex; justify-content: space-between; gap: var(--space-s);
  font-family: var(--font-display); font-size: var(--step--1); letter-spacing: var(--track-label); text-transform: uppercase;
  padding-bottom: var(--space-2xs); border-bottom: 1px solid var(--void); margin-bottom: var(--space-xl);
}
.chapter-title { text-align: center; margin-bottom: var(--space-xl); }
.ch-num { display: block; font-family: var(--font-mono); font-size: var(--step--1); line-height: var(--lh-label); letter-spacing: var(--track-label); text-transform: uppercase; margin-bottom: var(--space-2xs); }
.ch-title { display: block; font-family: var(--font-display); font-size: var(--step-2); line-height: var(--lh-heading); letter-spacing: var(--track-display); text-transform: uppercase; text-wrap: balance; }
.prose { max-width: var(--measure-narrow); margin-inline: auto; font-size: var(--step-0); line-height: var(--lh-prose); hyphens: auto; -webkit-hyphens: auto; text-align: justify; }
.prose p + p { text-indent: 1.5em; }
.prose p:first-child::first-letter {
  font-family: var(--font-display); float: left; font-size: 3.6em; line-height: 0.85;
  padding: 0.06em 0.08em 0 0; margin-top: 0.02em;
}
.prose strong { font-weight: 600; }
.folio { text-align: center; font-family: var(--font-mono); font-size: var(--step--1); margin-top: var(--space-xl); }
.provenance { color: var(--ink-meta); }
#sample .provenance { text-align: center; margin-top: var(--space-l); }
.after-sample { display: grid; justify-items: center; gap: var(--space-m); margin-top: var(--space-2xl); text-align: center; }
.after-sample p { font-style: italic; font-size: var(--step-1); line-height: var(--lh-heading); max-width: 40ch; }

/* ---------- lexicon (Plate V) ---------- */
.lexicon-list { margin: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 var(--space-xl); }
.term { display: grid; grid-template-columns: minmax(0, 14rem) minmax(0, 1fr); gap: var(--space-m); padding-block: var(--space-m); border-top: 1px solid var(--hairline); }
.term dt { font-family: var(--font-display); font-weight: 700; letter-spacing: var(--track-display); line-height: var(--lh-heading); }
.term dd { margin: 0; }
.term--living { border-top-color: var(--living); }
.pron { display: block; font-family: var(--font-body); font-weight: 400; font-style: italic; letter-spacing: 0; color: var(--ink-meta); margin-top: var(--space-3xs); }

/* ---------- app (Plate VI) ---------- */
.app-copy { display: grid; gap: var(--space-m); justify-items: start; max-width: 48rem; }
.app-copy .section-title { margin-bottom: 0; }
.pulse { width: 240px; height: 24px; }
.pulse path { fill: none; stroke: var(--chlorophyll); stroke-width: 1.5; vector-effect: non-scaling-stroke; stroke-linejoin: round; stroke-linecap: round; }
.app-quote { padding-left: var(--space-m); border-left: 2px solid var(--living); font-size: var(--step-2); line-height: var(--lh-heading); font-style: italic; max-width: 26ch; }
.app-fact { max-width: 48ch; color: var(--ink); }

/* ---------- outro (Plate VII) ---------- */
.outro::after {
  content: ""; position: absolute; left: 50%; bottom: 0; width: min(80vw, 60rem); aspect-ratio: 2 / 1; z-index: -1;
  transform: translateX(-50%); pointer-events: none;
  background: radial-gradient(closest-side at 50% 100%, var(--bloom), transparent);
}
.outro-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: var(--space-2xl); align-items: end; }
.closing p { font-style: italic; font-size: var(--step-3); line-height: var(--lh-heading); max-width: 26ch; }
.attribution { display: block; color: var(--ink-meta); margin-top: var(--space-m); letter-spacing: 0.02em; }
.outro-cta .section-title { margin-bottom: var(--space-m); }

/* ---------- footer ---------- */
.footer { border-top: 1px solid var(--hairline); padding-block: var(--space-xl); }
.footer-inner { display: flex; flex-wrap: wrap; align-items: flex-start; gap: var(--space-s) var(--space-l); font-family: var(--font-mono); font-size: var(--step--1); line-height: var(--lh-label); color: var(--ink); }
.footer-text { display: grid; gap: var(--space-3xs); }
.footer-sigil { width: 20px; height: 20px; color: var(--accent); margin-top: 0.1em; }
.colophon { color: var(--ink-meta); }
.footer-nav { display: flex; flex-wrap: wrap; gap: var(--space-2xs) var(--space-m); margin-left: auto; }

/* ---------- reveal (enabled by JS only when motion is allowed) ---------- */
.motion-ok .reveal { opacity: 0; transform: translateY(24px); transition: opacity var(--dur-reveal) var(--ease-out), transform var(--dur-reveal) var(--ease-out); transition-delay: calc(var(--i, 0) * var(--stagger)); }
.motion-ok .reveal.is-in { opacity: 1; transform: none; }

/* ---------- responsive ---------- */
@media (max-width: 1100px) {
  .crew { grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: var(--space-xl); }
  .lexicon-list { grid-template-columns: minmax(0, 1fr); }
  .outro-grid { grid-template-columns: minmax(0, 1fr); }
}

/* single column: eyebrow → H1 → film → form → logline → warning → byline → links */
@media (max-width: 900px) {
  .hero-main { grid-template-columns: minmax(0, 1fr); gap: var(--space-m); }
  .hero-body, .hero-side { display: contents; }
  .hero-main > * , .hero-body > *, .hero-side > * { order: 10; }
  .hero-body .eyebrow { order: 1; }
  .hero-title { order: 2; }
  .film { order: 3; margin-block: var(--space-2xs); }
  .hero-side .join-form { order: 4; }
  .hero-sub { order: 5; }
  .warning { order: 6; }
  .byline { order: 7; }
  .hero-links { order: 8; }
  .specimens { grid-template-columns: minmax(0, 1fr); gap: var(--space-xl); max-width: 40rem; }
  .specimen { grid-template-columns: var(--thumb-w) minmax(0, 1fr); gap: var(--space-2xs) var(--space-m); }
  .specimen-card { display: contents; }
  .cover-frame { grid-row: 1 / span 3; }
  .specimen-card > :not(.blurb) { grid-column: 2; }
  .blurb { grid-column: 1 / -1; }
  .cover-frame .crop { --crop-len: 8px; }
}

@media (max-width: 600px) {
  .topbar nav { gap: var(--space-s); }
  .crew { grid-template-columns: minmax(0, 1fr); }
  .term { grid-template-columns: minmax(0, 1fr); gap: var(--space-2xs); }
  .join-row .btn { flex: 1 1 100%; }
  .film-controls { right: var(--space-xs); bottom: var(--space-xs); }
  .prose { text-align: left; }
  .running-head span:first-child { display: none; }
  .running-head { justify-content: center; }
  .footer-nav { margin-left: 0; width: 100%; }
  .page::before { transform: translate(3px, 3px); }
  .page::after { transform: translate(6px, 6px); }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  html { scroll-behavior: auto; }
  /* spine becomes a static, fully drawn trace */
  .spine-live, .spine-cursor { animation: none !important; }
  .spine-live { clip-path: none; }
  .spine-live path { opacity: 0.6; }
  .spine-cursor { display: none; }
  .film::before { animation: none !important; opacity: 1; }
}

/* Guard: decorative crop marks bleed ~4px at 320px widths. clip (not hidden) keeps position: sticky working. */
html, body { overflow-x: clip; }