/* ============================================================
   CTRL/0 — DESCENT
   Cinematic cyber-noir scrollytelling
   Type: Bricolage Grotesque / Newsreader ital / IBM Plex Mono
   ============================================================ */

:root {
  --bg:        #0A0B0D;
  --bg-deep:   #060708;
  --surface:   #12141A;
  --surface-2: #181B22;
  --border:    rgba(232, 230, 225, 0.18);
  --border-soft: rgba(232, 230, 225, 0.10);
  --fg:        #E8E6E1;
  --fg-muted:  rgba(232, 230, 225, 0.78);
  --fg-faint:  rgba(232, 230, 225, 0.65);
  --gold:      #E0A458;
  --accent:    #E5484D;
  --accent-dim: rgba(229, 72, 77, 0.16);

  --sans:  'Bricolage Grotesque', 'Helvetica Neue', sans-serif;
  --serif: 'Newsreader', Georgia, serif;
  --mono:  'IBM Plex Mono', 'Courier New', monospace;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  --rail-w: 190px;
  --gutter: clamp(20px, 5vw, 64px);
  --content-left: clamp(20px, calc(5vw + 96px), 200px);
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(120% 70% at 80% -10%, rgba(232, 230, 225, 0.035), transparent 60%),
    radial-gradient(90% 60% at 0% 100%, rgba(229, 72, 77, 0.04), transparent 55%),
    var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Themed scrollbar — the default Windows track reads as a black gap
   next to the hero video. */
html {
  scrollbar-width: thin;
  scrollbar-color: rgba(232, 230, 225, 0.22) var(--bg);
}
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb {
  background: rgba(232, 230, 225, 0.22);
  border: 2px solid var(--bg);
}
::-webkit-scrollbar-thumb:hover { background: rgba(229, 72, 77, 0.55); }

img { max-width: 100%; height: auto; display: block; }
p { margin: 0 0 1em; }
h1, h2, h3 { margin: 0; font-weight: 700; }

a { color: inherit; }
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.mono  { font-family: var(--mono); }
.serif { font-family: var(--serif); font-style: italic; font-weight: 300; }
.accent { color: var(--accent); }
.dim { color: var(--fg-faint); }

.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  clip-path: inset(50%); overflow: hidden; white-space: nowrap;
}

::selection { background: var(--accent); color: var(--bg-deep); }

/* ---------- atmosphere ---------- */
.grain {
  position: fixed; inset: -50px;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  pointer-events: none; z-index: 9990;
  opacity: 0.05;
  mix-blend-mode: overlay;
  animation: grainShift 0.9s steps(3) infinite;
}
@keyframes grainShift {
  0% { transform: translate(0, 0); }
  33% { transform: translate(-14px, 9px); }
  66% { transform: translate(11px, -12px); }
  100% { transform: translate(0, 0); }
}

.vignette {
  position: fixed; inset: 0;
  background: radial-gradient(130% 110% at 50% 45%, transparent 55%, rgba(4, 5, 6, 0.55) 100%);
  pointer-events: none; z-index: 9989;
}

/* ---------- top bar ---------- */
.topbar {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 200;
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px var(--gutter);
  pointer-events: none;
  background: linear-gradient(to bottom, rgba(6, 7, 8, 0.75), transparent);
}
.topbar > * { pointer-events: auto; }

.wordmark {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 15px;
  letter-spacing: 0.12em;
  text-decoration: none;
}
.wordmark span { color: var(--accent); }

.topbar__meta {
  margin: 0;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--fg-faint);
}

.topbar__cta {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-decoration: none;
  color: var(--fg-muted);
  border: 1px solid var(--border);
  padding: 8px 14px;
  transition: color 0.25s var(--ease-out), border-color 0.25s var(--ease-out), background 0.25s var(--ease-out);
}
.topbar__cta:hover {
  color: var(--fg);
  border-color: var(--accent);
  background: var(--accent-dim);
}

/* ---------- signal rail (signature) ---------- */
.rail {
  position: fixed;
  left: clamp(16px, 2.5vw, 36px);
  top: 50%;
  transform: translateY(-50%);
  z-index: 150;
  display: flex;
  gap: 14px;
  height: min(58vh, 520px);
}

.rail__track {
  position: relative;
  width: 2px;
  background: var(--border-soft);
}
.rail__fill {
  position: absolute; top: 0; left: 0; right: 0;
  height: 0%;
  background: linear-gradient(to bottom, rgba(229, 72, 77, 0.35), var(--accent));
}
.rail__packet {
  position: absolute; left: 50%; top: 0%;
  width: 7px; height: 7px;
  transform: translate(-50%, -50%);
  background: var(--accent);
  box-shadow: 0 0 12px 2px rgba(229, 72, 77, 0.65);
}

.rail__chapters {
  list-style: none;
  margin: 0; padding: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.rail__chapters a {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none;
  color: var(--fg-faint);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  transition: color 0.3s var(--ease-out);
}
.rail__tick {
  width: 12px; height: 1px;
  background: currentColor;
  flex-shrink: 0;
  transition: width 0.3s var(--ease-out), background 0.3s var(--ease-out);
}
.rail__label {
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity 0.3s var(--ease-out), transform 0.3s var(--ease-out);
  white-space: nowrap;
}
.rail:hover .rail__label,
.rail__chapters a:focus-visible .rail__label,
.rail__chapters a.is-active .rail__label { opacity: 1; transform: translateX(0); }
.rail__chapters a:hover { color: var(--fg-muted); }
.rail__chapters a.is-active { color: var(--accent); }
.rail__chapters a.is-active .rail__tick { width: 22px; }

/* mobile progress bar */
.progress {
  position: fixed; top: 0; left: 0; right: 0;
  height: 2px; z-index: 300;
  background: transparent;
  display: none;
}
.progress__fill {
  height: 100%; width: 0%;
  background: var(--accent);
}

/* ---------- shared chapter furniture ---------- */
.chapter-tag {
  display: inline-flex; align-items: center; gap: 12px;
  margin: 0 0 1.4em;
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--fg-muted);
  text-transform: uppercase;
}
.chapter-tag__tick {
  width: 26px; height: 1px;
  background: var(--accent);
  box-shadow: 0 0 8px rgba(229, 72, 77, 0.7);
}

.chapter-head {
  padding: clamp(90px, 16vh, 160px) var(--gutter) clamp(40px, 7vh, 80px);
  padding-left: var(--content-left);
  max-width: 1100px;
}
.chapter-head__title {
  font-size: clamp(2.6rem, 7vw, 6rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
  font-weight: 800;
  margin-bottom: 0.35em;
}
.chapter-head__dek {
  max-width: 46ch;
  color: var(--fg-muted);
  font-size: clamp(1rem, 1.1vw, 1.15rem);
}

/* buttons */
.btn {
  position: relative;
  display: inline-block;
  padding: 14px 26px;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-decoration: none;
  color: var(--fg);
  border: 1px solid var(--border);
  background: transparent;
  overflow: hidden;
  isolation: isolate;
  transition: color 0.3s var(--ease-out), border-color 0.3s var(--ease-out);
  cursor: pointer;
}
.btn::before {
  content: '';
  position: absolute; inset: 0; z-index: -1;
  background: var(--fg);
  transform: translateY(101%);
  transition: transform 0.35s var(--ease-out);
}
.btn:hover, .btn:focus-visible { color: var(--bg-deep); border-color: var(--fg); }
.btn:hover::before, .btn:focus-visible::before { transform: translateY(0); }

.btn--accent { border-color: rgba(229, 72, 77, 0.5); color: var(--fg); }
.btn--accent::before { background: var(--accent); }
.btn--accent:hover, .btn--accent:focus-visible { border-color: var(--accent); color: var(--bg-deep); }
.btn--lg { padding: 18px 34px; font-size: 13px; }

/* reveal system */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}
[data-reveal].is-revealed { opacity: 1; transform: translateY(0); }

/* wipe variant — editorial image reveals */
[data-reveal="wipe"] {
  transform: none;
  clip-path: inset(0 100% 0 0);
  transition: opacity 0.6s var(--ease-out), clip-path 1.1s var(--ease-out);
}
[data-reveal="wipe"].is-revealed { clip-path: inset(0); }

/* ---------- scroll-reactive imagery ---------- */
[data-pximg] { overflow: hidden; }
[data-pximg] img, [data-pximg] video {
  will-change: transform;
  transform: scale(1.12);
}

.fx-fig {
  position: relative;
  margin: 0;
  border: 1px solid var(--border-soft);
  background: var(--surface);
}
.fx-fig img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  filter: grayscale(0.25) contrast(1.05) brightness(0.9);
}
.fx-fig figcaption {
  position: absolute;
  left: 14px; bottom: 12px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.2em;
  color: rgba(232, 230, 225, 0.65);
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.9);
  z-index: 2;
}
.fx-fig::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(6, 7, 8, 0.5), transparent 40%);
  pointer-events: none;
}

/* full-bleed atmosphere layer behind section content */
.bg-layer {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}
.bg-layer img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: grayscale(0.3) brightness(0.85) contrast(1.05);
}
.bg-layer::after {
  content: '';
  position: absolute; inset: 0;
  background:
    linear-gradient(to bottom, var(--bg) 0%, transparent 22%, transparent 72%, var(--bg) 100%),
    radial-gradient(90% 90% at 50% 50%, transparent 40%, rgba(6, 7, 8, 0.6) 100%);
}

/* ---------- animated line icons ---------- */
.icon {
  width: 34px;
  height: 34px;
  display: block;
  color: var(--fg-muted);
  transition: color 0.35s var(--ease-out), transform 0.35s var(--ease-out);
}
.icon [pathLength] {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 100;
  stroke-dashoffset: 100;
  transition: stroke-dashoffset 1.1s var(--ease-out);
}
.icon.is-drawn [pathLength] { stroke-dashoffset: 0; }
.icon [pathLength]:nth-child(2) { transition-delay: 0.15s; }
.icon [pathLength]:nth-child(3) { transition-delay: 0.3s; }
.icon [pathLength]:nth-child(4) { transition-delay: 0.45s; }

.icon .icon-pulse {
  fill: currentColor;
  stroke: none;
  transform-origin: center;
  transform-box: fill-box;
  animation: iconPulse 2.4s var(--ease-out) infinite;
}
@keyframes iconPulse {
  0%, 100% { opacity: 0.4; transform: scale(0.8); }
  50% { opacity: 1; transform: scale(1.15); }
}
.icon .icon-spin {
  transform-origin: center;
  transform-box: view-box;
  animation: iconSpin 14s linear infinite;
}
@keyframes iconSpin { to { transform: rotate(360deg); } }
.icon .icon-waves [pathLength] { animation-iteration-count: 1; }

/* hover: warm up to accent */
:hover > .icon,
.icon:hover { color: var(--accent); transform: translateY(-2px); }

/* ---------- feed lightbox ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 400;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(14px, 3vw, 44px);
}
.lightbox[hidden] { display: none; }
.lightbox__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(4, 5, 6, 0.88);
  backdrop-filter: blur(10px);
  animation: lbFade 0.35s var(--ease-out);
}
@keyframes lbFade { from { opacity: 0; } }

.lightbox__dialog {
  position: relative;
  width: min(1080px, 100%);
  animation: lbRise 0.45s var(--ease-out);
}
@keyframes lbRise {
  from { opacity: 0; transform: translateY(22px) scale(0.985); }
}

.lightbox__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 12px;
}
.lightbox__name {
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--fg);
  text-transform: uppercase;
}
.lightbox__name::before { content: '▸ '; color: var(--accent); }
.lightbox__close {
  background: none;
  border: 1px solid var(--border);
  color: var(--fg-muted);
  font-size: 10px;
  letter-spacing: 0.16em;
  padding: 8px 14px;
  cursor: pointer;
  transition: color 0.25s, border-color 0.25s, background 0.25s;
}
.lightbox__close:hover {
  color: var(--fg);
  border-color: var(--accent);
  background: var(--accent-dim);
}

.lightbox__frame {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-deep);
  border: 1px solid var(--border);
  box-shadow: 0 50px 120px rgba(0, 0, 0, 0.7);
}
.lightbox__media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.lightbox__media video,
.lightbox__media iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
}
.lightbox__media video {
  object-fit: cover;
}
.lightbox__frame::after {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(to bottom, transparent 0 3px, rgba(6, 7, 8, 0.12) 3px 4px);
  pointer-events: none;
}
.lightbox .feed__note { margin-top: 12px; }

body.lb-open { overflow: hidden; }

/* ---------- board CTA (slim row after the network) ---------- */
.board__cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px 28px;
  padding: clamp(50px, 9vh, 100px) var(--gutter);
  padding-left: var(--content-left);
}
.board__cta-note {
  margin: 0;
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--fg-faint);
}

/* ============================================================
   PROLOGUE
   ============================================================ */
.prologue {
  position: relative;
  min-height: 100svh;
  display: flex;
  overflow: hidden;
}

.prologue__bg { position: absolute; inset: 0; }
#hero-canvas { position: absolute; inset: 0; width: 100%; height: 100%; }

.prologue__video { position: absolute; inset: 0; overflow: hidden; }
.prologue__video video {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: 50% 42%;
  opacity: 0.8;
  filter: grayscale(0.15) contrast(1.1) brightness(0.95);
}
.prologue__video::after {
  content: '';
  position: absolute; inset: 0;
  background:
    linear-gradient(to bottom, rgba(6, 7, 8, 0.6), rgba(6, 7, 8, 0.2) 38%, rgba(6, 7, 8, 0.55) 80%, var(--bg) 100%),
    radial-gradient(110% 90% at 50% 50%, transparent 45%, rgba(6, 7, 8, 0.55) 100%);
}

.prologue__haze {
  position: absolute; inset: -6%;
  background:
    radial-gradient(55% 40% at 70% 20%, rgba(232, 230, 225, 0.05), transparent 65%),
    radial-gradient(40% 35% at 20% 75%, rgba(229, 72, 77, 0.06), transparent 60%);
}
.prologue__horizon {
  position: absolute; left: -6%; right: -6%; bottom: 12%;
  height: 1px;
  background: linear-gradient(to right, transparent, rgba(229, 72, 77, 0.4) 35%, rgba(229, 72, 77, 0.4) 65%, transparent);
  box-shadow: 0 0 24px 1px rgba(229, 72, 77, 0.25);
}

.prologue__frame {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 100%;
  padding: 92px var(--gutter) 34px;
  padding-left: var(--content-left);
}

.prologue__coord {
  font-size: 10px;
  letter-spacing: 0.26em;
  color: var(--fg-faint);
}

.prologue__title-block { margin: auto 0; }

.prologue__title {
  font-size: clamp(3.6rem, 12.5vw, 11.5rem);
  line-height: 0.88;
  letter-spacing: -0.04em;
  font-weight: 800;
  text-transform: uppercase;
  animation: titleGlitch 6.5s steps(1) 2.6s infinite;
}
@keyframes titleGlitch {
  0%, 91%, 100% { text-shadow: none; transform: none; }
  92% { text-shadow: -4px 0 var(--accent), 4px 0 rgba(130, 210, 255, 0.5); transform: translateX(3px); }
  93.2% { text-shadow: 4px 0 var(--accent); transform: translateX(-3px) skewX(1.5deg); }
  94.4% { text-shadow: none; transform: none; }
  96% { text-shadow: -3px 0 var(--accent); transform: translateX(1px); }
  97% { text-shadow: none; transform: none; }
}
.prologue__line { display: block; overflow: hidden; }
.prologue__line > span {
  display: inline-block;
  transform: translateY(110%);
  animation: lineUp 1s var(--ease-out) forwards;
}
.prologue__line--accent > span {
  animation-delay: 0.15s;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(232, 230, 225, 0.85);
}
@keyframes lineUp { to { transform: translateY(0); } }

.prologue__dek {
  margin-top: 2.2em;
  font-size: clamp(1.15rem, 1.9vw, 1.55rem);
  line-height: 1.5;
  color: var(--fg-muted);
  max-width: 34em;
  opacity: 0;
  animation: fadeIn 1.2s var(--ease-out) 0.7s forwards;
}
@keyframes fadeIn { to { opacity: 1; } }

.prologue__foot {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
}
.prologue__foot-meta {
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--fg-faint);
  margin: 0;
}

.scroll-cue {
  display: flex; flex-direction: column; align-items: center; gap: 12px;
  text-decoration: none;
  color: var(--fg-muted);
  font-size: 10px;
  letter-spacing: 0.26em;
}
.scroll-cue__line {
  width: 1px; height: 44px;
  background: linear-gradient(to bottom, var(--fg-muted), transparent);
  position: relative;
  overflow: hidden;
}
.scroll-cue__line::after {
  content: '';
  position: absolute; left: 0; top: -30%;
  width: 100%; height: 30%;
  background: var(--accent);
  animation: cueDrop 1.8s var(--ease-out) infinite;
}
@keyframes cueDrop {
  0% { top: -30%; } 70%, 100% { top: 110%; }
}

.bp-desktop { display: inline; }

/* ============================================================
   SCRUB SECTIONS (shared pinning machinery)
   ============================================================ */
.scrub { position: relative; height: 380vh; }
.scrub__stage {
  position: sticky; top: 0;
  height: 100svh;
  overflow: hidden;
}
#collapse-canvas, #board-canvas {
  position: absolute; inset: 0; width: 100%; height: 100%;
}
.scrub__shade {
  position: absolute; inset: 0;
  background: linear-gradient(to right, rgba(6, 7, 8, 0.7) 0%, rgba(6, 7, 8, 0.26) 46%, transparent 68%);
}

/* full-bleed photo behind a scrub stage — decays with scrub progress (--p) */
.scrub__bgimg { position: absolute; inset: 0; overflow: hidden; }
.scrub__bgimg img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: 50% 50%;
  opacity: calc(0.92 - var(--p, 0) * 0.32);
  /* fly-in: the corridor rushes toward you as you descend */
  transform: scale(calc(1 + var(--p, 0) * 0.5));
  transform-origin: 50% 50%;
  filter: grayscale(calc(0.1 + var(--p, 0) * 0.6)) brightness(1.08) contrast(1.12);
  will-change: transform, opacity;
}

.collapse__head {
  position: absolute;
  top: clamp(80px, 12vh, 120px);
  left: var(--content-left);
  z-index: 3;
}

.scrub__steps {
  position: absolute;
  left: var(--content-left);
  top: 0; bottom: 0;
  width: min(560px, 72vw);
  z-index: 3;
}
.scrub-step {
  position: absolute;
  top: 50%; left: 0; right: 0;
  transform: translateY(calc(-50% + 34px));
  opacity: 0;
  transition: opacity 0.55s var(--ease-out), transform 0.55s var(--ease-out);
  pointer-events: none;
}
.scrub-step.is-active {
  opacity: 1;
  transform: translateY(-50%);
  pointer-events: auto;
}
.scrub-step.is-past {
  opacity: 0;
  transform: translateY(calc(-50% - 34px));
}
.scrub-step__label {
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--accent);
  margin-bottom: 1.2em;
  text-shadow: 0 1px 10px rgba(6, 7, 8, 0.9);
}
.scrub-step__text {
  font-size: clamp(1.35rem, 2.6vw, 2.1rem);
  line-height: 1.35;
  font-weight: 400;
  letter-spacing: -0.01em;
  margin: 0;
  text-shadow: 0 2px 18px rgba(6, 7, 8, 0.95), 0 0 4px rgba(6, 7, 8, 0.8);
}
.scrub-step__text strong { font-weight: 800; color: var(--fg); }

.scrub__meter {
  position: absolute;
  right: var(--gutter);
  bottom: 30px;
  display: flex; align-items: center; gap: 12px;
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--fg-faint);
  z-index: 3;
}
.scrub__meter-bar {
  width: 110px; height: 2px;
  background: var(--border-soft);
  position: relative;
  overflow: hidden;
}
.scrub__meter-fill {
  position: absolute; inset: 0;
  transform-origin: left;
  background: var(--accent);
}
.scrub__meter-val { color: var(--fg-muted); min-width: 4ch; text-align: right; }

/* ============================================================
   CH.02 — OPERATIVES
   ============================================================ */
.operatives { padding-bottom: clamp(60px, 10vh, 120px); }

.dossier {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
  padding: clamp(50px, 9vh, 110px) var(--gutter);
  padding-left: var(--content-left);
  max-width: 1500px;
}
.dossier--left { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
.dossier--left .dossier__media { order: 2; }
.dossier--left .dossier__body { order: 1; }

/* breakout: media escapes the content column toward viewport edge */
.breakout-left  { margin-left: calc(var(--content-left) * -0.8); }
.breakout-right { margin-right: calc(var(--gutter) * -1); }

.dossier__img-wrap {
  position: relative;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border-soft);
  transform: perspective(900px) rotateX(var(--ry, 0deg)) rotateY(var(--rx, 0deg));
  transition: transform 0.4s var(--ease-out);
}
.dossier__img-wrap img,
.dossier__img-wrap video {
  width: 100%;
  display: block;
  filter: grayscale(0.45) contrast(1.06) brightness(0.9);
  transform: scale(1.04);
  transition: transform 1.4s var(--ease-out), filter 0.8s var(--ease-out);
}
.dossier:hover .dossier__img-wrap img,
.dossier:hover .dossier__img-wrap video {
  filter: grayscale(0.15) contrast(1.08) brightness(0.96);
  transform: scale(1.0);
}
.dossier__img-shade {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(6, 7, 8, 0.55), transparent 45%);
  pointer-events: none;
}
.dossier__cap {
  margin-top: 12px;
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--fg-faint);
}
figure.dossier__media { margin: 0; }

.dossier__meta {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--fg-muted);
  margin-bottom: 1.6em;
}
.dossier__name {
  font-size: clamp(2.6rem, 5.5vw, 4.6rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
  font-weight: 800;
  margin-bottom: 0.35em;
}
.dossier__copy {
  color: var(--fg-muted);
  max-width: 44ch;
  margin-bottom: 2em;
}

/* hotspots */
.hotspot {
  position: absolute;
  left: var(--hx); top: var(--hy);
  width: 34px; height: 34px;
  margin: -17px 0 0 -17px;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 5;
}
.hotspot__ring {
  position: absolute; inset: 8px;
  border: 1px solid rgba(232, 230, 225, 0.85);
  border-radius: 50%;
  background: rgba(6, 7, 8, 0.45);
  transition: border-color 0.3s, background 0.3s, transform 0.3s var(--ease-out);
}
.hotspot__ring::before {
  content: '';
  position: absolute; inset: 5px;
  border-radius: 50%;
  background: var(--fg);
  transition: background 0.3s;
}
.hotspot__ring::after {
  content: '';
  position: absolute; inset: -7px;
  border-radius: 50%;
  border: 1px solid rgba(232, 230, 225, 0.35);
  animation: hotspotPulse 2.6s var(--ease-out) infinite;
}
@keyframes hotspotPulse {
  0% { transform: scale(0.6); opacity: 0; }
  35% { opacity: 1; }
  100% { transform: scale(1.5); opacity: 0; }
}
.hotspot:hover .hotspot__ring,
.hotspot[aria-expanded="true"] .hotspot__ring {
  border-color: var(--accent);
  background: var(--accent-dim);
  transform: scale(1.15);
}
.hotspot:hover .hotspot__ring::before,
.hotspot[aria-expanded="true"] .hotspot__ring::before { background: var(--accent); }

.hotspot__tip {
  position: absolute;
  left: calc(100% + 14px);
  top: 50%;
  transform: translateY(-50%) translateX(-8px);
  width: min(270px, 58vw);
  padding: 14px 16px;
  background: rgba(10, 11, 13, 0.92);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  border-left: 2px solid var(--accent);
  font-size: 13px;
  line-height: 1.5;
  color: var(--fg-muted);
  text-align: left;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s var(--ease-out), transform 0.3s var(--ease-out), visibility 0.3s;
  pointer-events: none;
  z-index: 10;
}
.hotspot__tip strong {
  display: block;
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: 6px;
}
.hotspot[aria-expanded="true"] .hotspot__tip {
  opacity: 1;
  visibility: visible;
  transform: translateY(-50%) translateX(0);
  pointer-events: auto;
}

/* hidden feed link inside a hotspot tooltip */
.hotspot__watch {
  display: inline-block;
  margin-top: 8px;
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--accent);
  border-bottom: 1px solid var(--accent);
  padding-bottom: 2px;
  cursor: pointer;
}
.hotspot__watch:hover { color: var(--fg); border-color: var(--fg); }
.hotspot__tip--left {
  left: auto;
  right: calc(100% + 14px);
  transform: translateY(-50%) translateX(8px);
}
.hotspot[aria-expanded="true"] .hotspot__tip--left { transform: translateY(-50%) translateX(0); }
.hotspot__tip--up { top: auto; bottom: 0; transform: translateX(8px); }
.hotspot[aria-expanded="true"] .hotspot__tip--up { transform: translateX(0); }

/* dossier feed (video moment) */
.feed-toggle {
  background: none;
  border: none;
  border-bottom: 1px solid var(--border);
  color: var(--fg);
  font-size: 11px;
  letter-spacing: 0.16em;
  padding: 0 0 6px;
  cursor: pointer;
  transition: color 0.25s, border-color 0.25s;
}
.feed-toggle:hover { color: var(--accent); border-color: var(--accent); }
a.feed-toggle { display: inline-block; text-decoration: none; }
.feed-toggle[aria-expanded="true"] { color: var(--accent); border-color: var(--accent); }

.feed { margin-top: 22px; }
.feed__frame {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-deep);
  border: 1px solid var(--border);
}
.feed__video, .feed__fallback {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
}
.feed__video:not([src]) { display: none; }
.feed__fallback {
  filter: grayscale(0.3) contrast(1.1) brightness(0.85);
  animation: kenburns 14s ease-in-out infinite alternate;
}
@keyframes kenburns {
  from { transform: scale(1.02) translate(0, 0); }
  to   { transform: scale(1.14) translate(-1.5%, 1.5%); }
}
.feed__frame::after {
  content: '';
  position: absolute; inset: 0;
  background: repeating-linear-gradient(to bottom, transparent 0 3px, rgba(6, 7, 8, 0.14) 3px 4px);
  pointer-events: none;
}
.feed__hud {
  position: absolute;
  left: 0; right: 0; top: 0;
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 14px;
  font-size: 10px;
  letter-spacing: 0.18em;
  color: rgba(232, 230, 225, 0.8);
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.8);
  z-index: 2;
}
.feed__rec { display: inline-flex; align-items: center; gap: 7px; color: var(--accent); }
.feed__rec-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent);
  animation: blink 1.2s step-end infinite;
}
@keyframes blink { 50% { opacity: 0.15; } }
.feed__note {
  margin-top: 10px;
  font-size: 9px;
  letter-spacing: 0.16em;
  color: var(--fg-faint);
}

/* margin quote */
.margin-quote {
  padding: clamp(30px, 6vh, 70px) var(--gutter);
  padding-left: var(--content-left);
  max-width: 900px;
}
.margin-quote .serif {
  font-size: clamp(1.4rem, 2.6vw, 2.1rem);
  line-height: 1.4;
  color: var(--fg-muted);
  border-left: 2px solid var(--accent);
  padding-left: clamp(18px, 3vw, 34px);
  margin: 0 0 1em;
}
.margin-quote__src {
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--fg-faint);
  padding-left: clamp(20px, 3vw, 36px);
}

/* ============================================================
   INTERLUDE
   ============================================================ */
.interlude {
  min-height: 88svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--gutter);
  background:
    radial-gradient(60% 45% at 50% 55%, rgba(229, 72, 77, 0.05), transparent 70%),
    var(--bg-deep);
}
.interlude { position: relative; overflow: hidden; }
.interlude .bg-layer img { opacity: 0.9; }
.interlude .bg-layer::after {
  background:
    linear-gradient(to bottom, var(--bg) 0%, transparent 16%, transparent 82%, var(--bg) 100%),
    radial-gradient(120% 100% at 50% 50%, transparent 52%, rgba(6, 7, 8, 0.55) 100%);
}
.interlude__quote, .interlude__meta { position: relative; z-index: 2; }
.interlude__quote {
  margin: 0;
  padding: clamp(30px, 6vw, 60px) clamp(24px, 7vw, 80px);
  border: 1px solid rgba(232, 230, 225, 0.22);
  background: rgba(6, 7, 8, 0.38);
  backdrop-filter: blur(3px);
}
.interlude__quote::before,
.interlude__quote::after {
  content: '';
  position: absolute;
  width: 28px; height: 28px;
  animation: cornerPulse 3.2s var(--ease-out) infinite;
}
.interlude__quote::before {
  top: -2px; left: -2px;
  border-top: 2px solid var(--accent);
  border-left: 2px solid var(--accent);
}
.interlude__quote::after {
  bottom: -2px; right: -2px;
  border-bottom: 2px solid var(--accent);
  border-right: 2px solid var(--accent);
  animation-delay: 1.6s;
}
@keyframes cornerPulse {
  0%, 100% { opacity: 0.55; }
  50% { opacity: 1; filter: drop-shadow(0 0 8px rgba(229, 72, 77, 0.8)); }
}
.interlude__scan {
  position: absolute; inset: 0;
  z-index: 1;
  pointer-events: none;
  overflow: hidden;
}
.interlude__scan::after {
  content: '';
  position: absolute; left: 0; right: 0;
  height: 140px; top: -25%;
  background: linear-gradient(to bottom, transparent, rgba(229, 72, 77, 0.09), transparent);
  animation: scanDrift 6.5s linear infinite;
}
@keyframes scanDrift { to { top: 125%; } }
.interlude__quote .serif {
  font-size: clamp(1.9rem, 5vw, 4rem);
  line-height: 1.25;
  color: var(--fg);
  margin: 0;
  text-shadow: 0 2px 20px rgba(6, 7, 8, 0.9);
}
.interlude__meta {
  margin-top: 3em;
  font-size: 10px;
  letter-spacing: 0.28em;
  color: var(--fg-faint);
}

/* ============================================================
   CH.03 — THE BOARD
   ============================================================ */
.board__scrub .scrub__shade { display: none; }
.board__shade {
  position: absolute; inset: 0;
  background:
    linear-gradient(to bottom, rgba(6, 7, 8, 0.85), transparent 26%),
    linear-gradient(to right, rgba(6, 7, 8, 0.85) 0%, rgba(6, 7, 8, 0.25) 44%, transparent 66%);
  pointer-events: none;
}

.board__head {
  position: absolute;
  top: clamp(76px, 11vh, 110px);
  left: var(--content-left);
  right: var(--gutter);
  z-index: 3;
}
.board__title {
  font-size: clamp(2.2rem, 5.5vw, 4.6rem);
  line-height: 0.98;
  letter-spacing: -0.03em;
  font-weight: 800;
}

.board__steps { width: min(480px, 70vw); }
.board-step__title {
  font-size: clamp(2.4rem, 5vw, 4rem);
  letter-spacing: -0.03em;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 0.25em;
  text-transform: uppercase;
}
.board__steps .scrub-step__text {
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  color: var(--fg-muted);
}

/* each phase gets its own color identity: white sweep / red strike / gold hold */
.board__steps .scrub-step { border-left: 2px solid; padding-left: clamp(16px, 2.4vw, 26px); }
.board__steps .scrub-step[data-step="0"] { border-color: rgba(232, 230, 225, 0.7); }
.board__steps .scrub-step[data-step="0"] .board-step__title { color: var(--fg); }
.board__steps .scrub-step[data-step="0"] .scrub-step__label { color: var(--fg-muted); }
.board__steps .scrub-step[data-step="1"] { border-color: var(--accent); }
.board__steps .scrub-step[data-step="1"] .board-step__title {
  color: var(--accent);
  text-shadow: 0 0 26px rgba(229, 72, 77, 0.55);
}
.board__steps .scrub-step[data-step="2"] { border-color: var(--gold); }
.board__steps .scrub-step[data-step="2"] .board-step__title {
  color: var(--gold);
  text-shadow: 0 0 26px rgba(224, 164, 88, 0.5);
}
.board__steps .scrub-step[data-step="2"] .scrub-step__label { color: var(--gold); }

/* stage atmosphere follows the active phase (set from JS) */
.board__scrub .scrub__stage::before {
  content: '';
  position: absolute; inset: 0;
  pointer-events: none;
  opacity: 0;
  transition: opacity 1s var(--ease-out), background 1s var(--ease-out);
}
.board__scrub .scrub__stage[data-phase="1"]::before {
  opacity: 1;
  background: radial-gradient(85% 70% at 62% 50%, rgba(229, 72, 77, 0.12), transparent 72%);
}
.board__scrub .scrub__stage[data-phase="2"]::before {
  opacity: 1;
  background: radial-gradient(85% 70% at 62% 50%, rgba(224, 164, 88, 0.12), transparent 72%);
}

.hotspot--map { z-index: 6; }

.board__hint {
  position: absolute;
  bottom: 26px; left: 0; right: 0;
  text-align: center;
  font-size: 9px;
  letter-spacing: 0.26em;
  color: var(--fg-faint);
  z-index: 3;
}

/* specs data moment */
.specs {
  padding: clamp(70px, 12vh, 140px) var(--gutter);
  padding-left: var(--content-left);
  max-width: 1200px;
}
.specs__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border-soft);
  border: 1px solid var(--border-soft);
  margin: 0 0 34px;
}
.specs__cell {
  background: var(--bg);
  padding: clamp(20px, 2.5vw, 34px);
  transition: background 0.3s var(--ease-out);
}
.specs__cell:hover { background: var(--surface); }
.specs__cell dt {
  font-size: 10px;
  letter-spacing: 0.24em;
  color: var(--fg-faint);
  margin-bottom: 10px;
}
.specs__cell dd {
  margin: 0;
  font-size: clamp(1rem, 1.3vw, 1.2rem);
  font-weight: 600;
  letter-spacing: -0.01em;
}

/* ============================================================
   CH.04 — TRANSMISSIONS (horizontal)
   ============================================================ */
.transmissions { background: var(--bg-deep); }

.hscroll { position: relative; height: 340vh; }
.hscroll__stage {
  position: sticky; top: 0;
  height: 100svh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.transmissions__head {
  position: absolute;
  top: clamp(70px, 10vh, 110px);
  left: var(--content-left);
  right: var(--gutter);
  z-index: 3;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 40px;
}
.transmissions__dek {
  max-width: 38ch;
  font-size: 0.95rem;
  color: var(--fg-muted);
  margin: 0;
  text-align: right;
}

.hscroll__row {
  display: flex;
  align-items: center;
  gap: clamp(28px, 4vw, 64px);
  padding-left: var(--content-left);
  padding-right: 12vw;
  will-change: transform;
  width: max-content;
}

.tx-card { width: clamp(240px, 26vw, 360px); flex-shrink: 0; }
.tx-card__img {
  overflow: hidden;
  border: 1px solid var(--border-soft);
  background: var(--surface);
  aspect-ratio: 3 / 4;
}
.tx-card__img img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: grayscale(0.35) contrast(1.05) brightness(0.88);
  transform: scale(1.03);
  transition: filter 0.6s var(--ease-out), transform 1s var(--ease-out);
}
.tx-card:hover .tx-card__img img {
  filter: grayscale(0) contrast(1.05) brightness(1);
  transform: scale(1);
}
.tx-card__vol {
  margin: 16px 0 4px;
  font-size: 10px;
  letter-spacing: 0.24em;
  color: var(--fg-faint);
  display: flex; align-items: center; gap: 8px;
}
.tx-card--live .tx-card__vol { color: var(--accent); }
.tx-card__live-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  animation: blink 1.4s step-end infinite;
}
.tx-card__title {
  font-size: clamp(1.3rem, 1.8vw, 1.7rem);
  letter-spacing: -0.02em;
  font-weight: 700;
  margin-bottom: 0.3em;
}
.tx-card__blurb {
  font-size: 0.9rem;
  color: var(--fg-muted);
  margin: 0;
}

.tx-end {
  flex-shrink: 0;
  padding-left: 4vw;
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--fg-faint);
}
.tx-end__sub { color: rgba(232, 230, 225, 0.18); margin-top: 8px; }

/* ============================================================
   CH.05 — SYNDICATE
   ============================================================ */
.syndicate {
  padding-bottom: clamp(80px, 14vh, 160px);
  background:
    radial-gradient(70% 50% at 85% 20%, rgba(229, 72, 77, 0.045), transparent 60%),
    var(--bg);
}
.syndicate .chapter-head { padding-bottom: 0; }

.syndicate__quote {
  margin: 0;
  padding: clamp(20px, 5vh, 60px) var(--gutter) clamp(50px, 9vh, 110px);
  padding-left: var(--content-left);
}
.syndicate__quote .serif {
  font-size: clamp(2.1rem, 5.6vw, 4.6rem);
  line-height: 1.15;
  margin: 0;
  max-width: 18em;
}

.syndicate__cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(28px, 4vw, 60px);
  padding: 0 var(--gutter);
  padding-left: var(--content-left);
  max-width: 1400px;
}
.syndicate__item p:last-child {
  color: var(--fg-muted);
  font-size: 0.95rem;
  margin: 0;
}
.syndicate__note {
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--accent);
  border-top: 1px solid var(--border);
  padding-top: 16px;
  margin-bottom: 1.2em;
}

.syndicate__cta-row {
  padding: clamp(44px, 8vh, 90px) var(--gutter) 0;
  padding-left: var(--content-left);
  margin: 0;
}

.syndicate__fig {
  height: clamp(280px, 52vh, 520px);
  margin: clamp(50px, 9vh, 110px) var(--gutter) 0;
  margin-left: var(--content-left);
  max-width: 1240px;
}

.syndicate__note .icon { margin-bottom: 14px; }

/* ============================================================
   EPILOGUE
   ============================================================ */
.epilogue {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 100px var(--gutter) 0;
  background:
    radial-gradient(50% 38% at 50% 42%, rgba(229, 72, 77, 0.07), transparent 70%),
    var(--bg-deep);
  overflow: hidden;
}

.epilogue .bg-layer img { opacity: 0.42; }
.epilogue > *:not(.bg-layer):not(.epilogue__pulse) { position: relative; z-index: 2; }

.epilogue__pulse {
  position: absolute;
  top: 40%; left: 50%;
  width: 0; height: 0;
}
.epilogue__pulse span {
  position: absolute;
  top: 50%; left: 50%;
  width: 340px; height: 340px;
  margin: -170px 0 0 -170px;
  border: 1px solid rgba(229, 72, 77, 0.18);
  border-radius: 50%;
  animation: epiPulse 5s var(--ease-out) infinite;
}
.epilogue__pulse span:nth-child(2) { animation-delay: 1.6s; }
.epilogue__pulse span:nth-child(3) { animation-delay: 3.2s; }
@keyframes epiPulse {
  0% { transform: scale(0.2); opacity: 0; }
  25% { opacity: 1; }
  100% { transform: scale(1.6); opacity: 0; }
}

.epilogue__title {
  font-size: clamp(3.4rem, 10vw, 8.5rem);
  line-height: 0.92;
  letter-spacing: -0.04em;
  font-weight: 800;
  position: relative;
}
.epilogue__dek {
  margin-top: 1.8em;
  font-size: clamp(1.1rem, 1.8vw, 1.45rem);
  color: var(--fg-muted);
  position: relative;
}
.epilogue__q {
  margin: 2.4em 0 0;
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--accent);
}
.epilogue__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  margin-top: 2.6em;
  position: relative;
}
[data-magnetic] { transition: transform 0.3s var(--ease-out); }

.footer {
  margin-top: auto;
  width: calc(100% + 2 * var(--gutter));
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px 20px;
  padding: 26px var(--gutter);
  margin-top: clamp(70px, 12vh, 130px);
  border-top: 1px solid var(--border-soft);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--fg-faint);
}
.footer__source {
  color: var(--fg-faint);
  text-decoration: none;
  transition: color 0.25s var(--ease-out);
  order: 1;
  flex-basis: 100%;
  text-align: center;
  padding-top: 10px;
  border-top: 1px solid var(--border-soft);
}
.footer__source:hover { color: var(--accent); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1100px) {
  :root { --content-left: var(--gutter); }
  .rail { display: none; }
  .progress { display: block; }
}

@media (max-width: 820px) {
  .topbar__meta { display: none; }
  .bp-desktop { display: none; }

  .dossier, .dossier--left { grid-template-columns: 1fr; gap: 28px; }
  .dossier--left .dossier__media { order: 0; }
  .dossier--left .dossier__body { order: 1; }
  .breakout-left  { margin-left: calc(var(--gutter) * -1); margin-right: calc(var(--gutter) * -0.4); }
  .breakout-right { margin-left: calc(var(--gutter) * -0.4); }

  .specs__grid { grid-template-columns: 1fr 1fr; }
  .syndicate__cols { grid-template-columns: 1fr; }

  .transmissions__head { flex-direction: column; gap: 12px; }
  .transmissions__dek { text-align: left; }

  .scrub { height: 320vh; }
  .scrub__steps { width: min(560px, calc(100vw - 2 * var(--gutter))); }
  .scrub-step__text { font-size: clamp(1.2rem, 5.4vw, 1.6rem); }

  /* the desktop shade darkens the whole portrait frame — swap for a light
     vertical fade so the fly-in imagery stays visible behind the text */
  .scrub__shade {
    background: linear-gradient(to bottom, rgba(6, 7, 8, 0.55), rgba(6, 7, 8, 0.12) 30%, rgba(6, 7, 8, 0.12) 70%, rgba(6, 7, 8, 0.6));
  }

  /* horizontal gallery falls back to native swipe */
  .hscroll { height: auto; }
  .hscroll__stage {
    position: static;
    height: auto;
    overflow: visible;
    padding: 90px 0 70px;
  }
  .transmissions__head {
    position: static;
    padding: 0 var(--gutter) 30px;
  }
  .hscroll__row {
    overflow-x: auto;
    width: auto;
    padding-right: var(--gutter);
    scroll-snap-type: x proximity;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .hscroll__row::-webkit-scrollbar { display: none; }
  .tx-card { scroll-snap-align: start; width: min(74vw, 320px); }

  .footer { flex-direction: column; gap: 8px; text-align: center; }
  .footer__mid { order: -1; }
}

@media (max-width: 520px) {
  .specs__grid { grid-template-columns: 1fr; }
  .hotspot__tip { width: min(240px, 62vw); }
  .prologue__foot { flex-wrap: wrap; justify-content: center; }
  .prologue__foot-meta { display: none; }
}

/* ============================================================
   REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
  [data-reveal="wipe"] { clip-path: none; }
  [data-pximg] img, [data-pximg] video { transform: none; }
  .prologue__video { display: none; }
  .icon [pathLength] { stroke-dashoffset: 0; animation: none; }
  .scrub__bgimg img { opacity: 0.35; transform: none; }
  .prologue__line > span { transform: none; }
  .prologue__dek { opacity: 1; }
  .grain { animation: none; }
  .feed__fallback { animation: none; }

  /* collapse pinned scrubs into plain stacked sections */
  .scrub, .hscroll { height: auto !important; }
  .scrub__stage { position: static; height: auto; padding: 90px 0; }
  .scrub__steps { position: static; width: auto; padding: 0 var(--gutter); }
  .scrub-step { position: static; transform: none; opacity: 1; margin-bottom: 3em; pointer-events: auto; }
  .collapse__head, .board__head { position: static; padding: 0 var(--gutter) 30px; }
  .scrub__meter, .board__hint { display: none; }
  #collapse-canvas, #board-canvas { display: none; }
  .hscroll__stage { position: static; overflow: visible; padding: 60px 0; }
  .transmissions__head { position: static; padding: 0 var(--gutter) 30px; }
  .hscroll__row { overflow-x: auto; width: auto; flex-wrap: wrap; }
}

/* ---------- recovered pages: clickable covers + pager lightbox ---------- */
button.tx-card__img {
  display: block;
  width: 100%;
  padding: 0;
  margin: 0;
  cursor: pointer;
  position: relative;
  font: inherit;
  color: inherit;
}
.tx-card__open {
  position: absolute;
  left: 10px; bottom: 10px;
  z-index: 2;
  font-size: 9px;
  letter-spacing: 0.2em;
  color: var(--accent);
  background: rgba(6, 7, 8, 0.78);
  border: 1px solid var(--border-soft);
  padding: 5px 8px;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.35s var(--ease-out), transform 0.35s var(--ease-out);
  pointer-events: none;
}
.tx-card:hover .tx-card__open,
button.tx-card__img:focus-visible .tx-card__open { opacity: 1; transform: none; }

.lightbox__frame--page {
  aspect-ratio: 3 / 4;
  max-height: 76vh;
  margin: 0 auto;
}
.lightbox__frame--page img {
  width: 100%; height: 100%;
  object-fit: contain;
  display: block;
  background: var(--bg);
}
.lightbox__pager {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  background: rgba(6, 7, 8, 0.7);
  border: 1px solid var(--border-soft);
  color: var(--fg-muted);
  font-size: 18px;
  line-height: 1;
  padding: 14px 12px;
  cursor: pointer;
  transition: color 0.25s var(--ease-out), border-color 0.25s var(--ease-out);
}
.lightbox__pager:hover { color: var(--accent); border-color: var(--accent); }
.lightbox__pager--prev { left: 10px; }
.lightbox__pager--next { right: 10px; }
.lightbox--pages .lightbox__dialog { width: min(560px, 92vw); }