/* ==========================================================================
   assets/css/main.css
   Foundation · tokens · typography · grid system
   Cédric Heckly portfolio. Editorial (Kometa) x systems telemetry.
   ========================================================================== */

/* ---------- Self-hosted fonts (no third-party requests) ---------- */
@font-face {
  font-family: 'Instrument Serif';
  src: url('/assets/fonts/instrument-serif-latin-400-normal.woff2') format('woff2');
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Instrument Serif';
  src: url('/assets/fonts/instrument-serif-latin-400-italic.woff2') format('woff2');
  font-weight: 400; font-style: italic; font-display: swap;
}
@font-face {
  font-family: 'Space Grotesk';
  src: url('/assets/fonts/space-grotesk-latin-wght-normal.woff2') format('woff2');
  font-weight: 300 700; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Inter';
  src: url('/assets/fonts/inter-latin-wght-normal.woff2') format('woff2');
  font-weight: 100 900; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'JetBrains Mono';
  src: url('/assets/fonts/jetbrains-mono-latin-wght-normal.woff2') format('woff2');
  font-weight: 100 800; font-style: normal; font-display: swap;
}

/* ---------- Core design tokens (from blueprint §2) ---------- */
:root {
  --bg-primary: #F4F2ED;
  --bg-secondary: #EAE6DF;
  --bg-dark: #111214;
  --text-primary: #141517;
  --text-secondary: #52555C;
  --accent-editorial: #E63926;
  --accent-engineer: #0066FF;
  --border-hairline: 1px solid rgba(20, 21, 23, 0.14);
  --border-dark: 1px solid rgba(255, 255, 255, 0.12);

  --font-display: 'Instrument Serif', 'Fraunces', Georgia, serif;
  --font-heading: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;

  --step--1: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --step-0: clamp(0.95rem, 0.9rem + 0.3vw, 1.05rem);
  --step-1: clamp(1.15rem, 1.05rem + 0.5vw, 1.35rem);
  --step-2: clamp(1.45rem, 1.25rem + 1.0vw, 1.85rem);
  --step-3: clamp(1.85rem, 1.55rem + 1.5vw, 2.45rem);
  --step-4: clamp(2.45rem, 1.95rem + 2.5vw, 3.55rem);
  /* Display extensions for editorial headlines */
  --step-5: clamp(3rem, 2rem + 5vw, 6rem);
  --step-6: clamp(3.4rem, 1.8rem + 8vw, 9.5rem);

  /* Layout */
  --wrap-max: 1440px;
  --gutter: clamp(1rem, 0.6rem + 2vw, 2.5rem);
  --header-h: 64px;
  --radius: 2px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);

  /* Semantic aliases (swapped by inspect.css) */
  --surface: var(--bg-primary);
  --surface-alt: var(--bg-secondary);
  --ink: var(--text-primary);
  --ink-soft: var(--text-secondary);
  --rule: var(--border-hairline);
  --accent: var(--accent-editorial);

  color-scheme: light;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  background: var(--surface);
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}
body {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.55;
  color: var(--ink);
  background: var(--surface);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background-color .35s var(--ease), color .35s var(--ease);
}
img, svg, video, iframe { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; }
button, input { font: inherit; color: inherit; }
main { flex: 1 0 auto; }

:focus-visible {
  outline: 2px solid var(--accent-engineer);
  outline-offset: 3px;
}
.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--ink); color: var(--surface);
  padding: .6rem 1rem; z-index: 2000;
  font-family: var(--font-mono); font-size: var(--step--1);
}
.skip-link:focus { left: 1rem; top: 1rem; }
.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}

/* ---------- Layout primitives ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.grid-12 {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--gutter);
}
@media (min-width: 768px) {
  .grid-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }
}
.section { padding-block: clamp(3rem, 2rem + 5vw, 7rem); }
.section + .section { border-top: var(--rule); }

/* ---------- Typography ---------- */
.eyebrow, .mono {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: .04em;
  text-transform: uppercase;
  font-feature-settings: "tnum" 1, "zero" 1;
}
.eyebrow { color: var(--ink-soft); display: inline-flex; gap: .6em; align-items: center; }
.eyebrow::before { content: ''; width: 1.6em; height: 1px; background: currentColor; }

.display {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: var(--step-6);
  line-height: .92;
  letter-spacing: -0.02em;
}
.display em { font-style: italic; color: var(--accent); }
h1, h2, h3, h4 { font-family: var(--font-heading); font-weight: 600; line-height: 1.1; letter-spacing: -0.01em; }
.h-xl { font-family: var(--font-display); font-weight: 400; font-size: var(--step-5); line-height: .98; letter-spacing: -0.015em; }
.h-l { font-size: var(--step-3); }
.h-m { font-size: var(--step-2); }
.h-s { font-size: var(--step-1); }
.lead {
  font-size: var(--step-1);
  line-height: 1.5;
  color: var(--ink-soft);
  max-width: 38ch;
}
.prose { max-width: 62ch; }
.prose p + p { margin-top: 1em; }
.prose h3 { margin: 2rem 0 .6rem; font-size: var(--step-1); }

.text-link {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  text-transform: uppercase;
  letter-spacing: .04em;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: .5em;
  min-height: 44px;
  border-bottom: 1px solid currentColor;
  padding-top: 2px;
}
.text-link:hover { color: var(--accent); }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 1000;
  height: var(--header-h);
  background: color-mix(in srgb, var(--surface) 90%, transparent);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: var(--rule);
  transition: background-color .35s var(--ease);
}
.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.header-branding { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.wordmark {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: .95rem;
  letter-spacing: .08em;
  text-decoration: none;
  white-space: nowrap;
}
.telemetry-badge {
  font-family: var(--font-mono);
  font-size: .64rem;
  color: var(--ink-soft);
  letter-spacing: .03em;
  display: none;
  align-items: center;
  gap: .5em;
  white-space: nowrap;
  font-feature-settings: "tnum" 1;
}
@media (min-width: 560px) { .telemetry-badge { display: inline-flex; } }
.status-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: #1DB954;
  box-shadow: 0 0 0 0 rgba(29,185,84,.6);
  animation: pulse 2.4s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(29,185,84,.55); }
  70% { box-shadow: 0 0 0 7px rgba(29,185,84,0); }
  100% { box-shadow: 0 0 0 0 rgba(29,185,84,0); }
}

.header-actions { display: flex; align-items: center; gap: .5rem; }

.site-nav {
  position: fixed;
  inset: var(--header-h) 0 auto 0;
  background: var(--surface);
  border-bottom: var(--rule);
  display: flex;
  flex-direction: column;
  padding: .5rem var(--gutter) 1.25rem;
  transform: translateY(-8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity .25s var(--ease), transform .25s var(--ease), visibility .25s;
}
.site-nav.is-open { opacity: 1; transform: none; visibility: visible; }
.site-nav a {
  font-family: var(--font-display);
  font-size: var(--step-4);
  line-height: 1.15;
  text-decoration: none;
  padding: .35rem 0;
  border-bottom: var(--rule);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.site-nav a::after {
  content: attr(data-index);
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--ink-soft);
}
.site-nav a[aria-current="page"] { color: var(--accent); }

.menu-btn {
  min-width: 44px; min-height: 44px;
  background: none;
  border: var(--rule);
  border-radius: var(--radius);
  cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-size: .7rem; letter-spacing: .05em;
  padding: 0 .7rem;
}

@media (min-width: 900px) {
  .menu-btn { display: none; }
  .site-nav {
    position: static;
    flex-direction: row;
    gap: 2rem;
    padding: 0;
    background: none;
    border: 0;
    opacity: 1; visibility: visible; transform: none;
  }
  .site-nav a {
    font-family: var(--font-mono);
    font-size: .76rem;
    text-transform: uppercase;
    letter-spacing: .05em;
    border: 0;
    padding: .5rem 0;
    position: relative;
    min-height: 44px;
    align-items: center;
  }
  .site-nav a::after {
    content: '';
    position: absolute; left: 0; bottom: 8px;
    width: 0; height: 1px;
    background: currentColor;
    transition: width .3s var(--ease);
  }
  .site-nav a:hover::after,
  .site-nav a[aria-current="page"]::after { width: 100%; }
  .site-nav a[aria-current="page"] { color: var(--ink); }
}

/* Inspect toggle button (states styled in inspect.css) */
.inspect-btn {
  min-height: 44px;
  display: inline-flex; align-items: center; gap: .55rem;
  padding: 0 .85rem;
  background: transparent;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: .7rem;
  font-weight: 500;
  letter-spacing: .05em;
  cursor: pointer;
  white-space: nowrap;
  -webkit-tap-highlight-color: transparent;
  transition: background-color .25s var(--ease), border-color .25s var(--ease), color .25s var(--ease);
}
.inspect-btn .led {
  width: 8px; height: 8px; border-radius: 50%;
  background: #B9B6AE;
  transition: background-color .25s, box-shadow .25s;
}

/* ---------- Hero ---------- */
.hero-section { padding-block: clamp(2.5rem, 1.5rem + 5vw, 6rem) clamp(2rem, 1rem + 4vw, 5rem); }
.hero-meta {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: .75rem 2rem;
  margin-bottom: clamp(1.5rem, 1rem + 2vw, 3rem);
}
.hero-title { margin-bottom: clamp(1.5rem, 1rem + 2vw, 2.5rem); }
.hero-body { display: grid; gap: 2rem; align-items: end; }
@media (min-width: 900px) {
  .hero-body { grid-template-columns: 5fr 7fr; }
}

/* ---------- Media ---------- */
.media-frame {
  position: relative;
  background: var(--surface-alt);
  overflow: hidden;
}
.media-frame img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.media-frame.ratio-4x5 img { aspect-ratio: 4 / 5; }
.media-frame.ratio-3x2 img { aspect-ratio: 3 / 2; }
.editorial-caption {
  display: flex; gap: .8em;
  margin-top: .7rem;
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--ink-soft);
}
.editorial-caption span { color: var(--ink); font-weight: 500; }
.full-bleed { margin-inline: calc(var(--gutter) * -1); }
@media (min-width: 1440px) { .full-bleed { margin-inline: 0; } }

/* Video facade (blueprint STEP 3: responsive 16/9) */
.video-facade {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--bg-dark);
  overflow: hidden;
  width: 100%;
  border: 0;
  cursor: pointer;
  color: #fff;
  display: block;
}
.video-facade img { width: 100%; height: 100%; object-fit: cover; opacity: .85; transition: opacity .3s, transform .6s var(--ease); }
.video-facade:hover img { opacity: 1; transform: scale(1.015); }
.video-facade iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.video-facade .play-btn {
  position: absolute; left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  width: 72px; height: 72px; border-radius: 50%;
  background: rgba(17,18,20,.72);
  border: 1px solid rgba(255,255,255,.35);
  display: grid; place-items: center;
}
.video-facade .play-btn svg { width: 22px; height: 22px; margin-left: 3px; }
.video-facade .facade-label {
  position: absolute; left: 1rem; bottom: 1rem;
  font-family: var(--font-mono); font-size: .7rem; letter-spacing: .05em;
  background: rgba(17,18,20,.72); padding: .3rem .55rem;
}
.video-facade[data-pending] { cursor: default; }
.video-facade[data-pending] .play-btn { opacity: .4; }

/* ---------- Editorial color blocks (Kometa) ---------- */
.block-red { background: var(--accent-editorial); color: #FBF7F2; }
.block-dark { background: var(--bg-dark); color: #EDEBE6; --ink-soft: #A3A6AD; --rule: var(--border-dark); }
.block-sand { background: var(--surface-alt); }
.block-red .eyebrow { color: rgba(251,247,242,.85); }
.block-red .text-link:hover { color: var(--bg-dark); }

/* ---------- Pillars ---------- */
.dual-pillar-grid { display: grid; gap: 0; }
@media (min-width: 900px) { .dual-pillar-grid { grid-template-columns: 1fr 1fr; } }
.pillar-card {
  padding: clamp(2rem, 1.5rem + 3vw, 4.5rem) var(--gutter);
  display: flex; flex-direction: column; gap: 1.25rem;
  min-height: 100%;
}
.pillar-card + .pillar-card { border-top: 1px solid rgba(255,255,255,.25); }
@media (min-width: 900px) {
  .pillar-card + .pillar-card { border-top: 0; border-left: 1px solid rgba(255,255,255,.25); }
}
.pillar-card .num { font-family: var(--font-mono); font-size: var(--step--1); letter-spacing: .05em; }
.pillar-card h2 { font-family: var(--font-display); font-weight: 400; font-size: var(--step-4); line-height: 1; }
.pillar-card p { max-width: 42ch; }
.pillar-card .text-link { margin-top: auto; align-self: flex-start; }

/* ---------- Metrics strip ---------- */
.metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: var(--rule);
}
@media (min-width: 900px) { .metrics { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.metric {
  padding: 1.5rem 1rem 1.5rem 0;
  border-bottom: var(--rule);
}
.metric strong {
  display: block;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: var(--step-4);
  line-height: 1;
  font-feature-settings: "lnum" 1;
}
.metric span { display: block; margin-top: .5rem; }

/* ---------- Project cards / contact sheet ---------- */
.filter-bar {
  display: flex; flex-wrap: wrap; gap: .5rem;
  margin-block: 1.5rem 2rem;
}
.filter-btn {
  min-height: 44px;
  padding: 0 1rem;
  border: var(--rule);
  border-radius: 999px;
  background: transparent;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .05em;
  text-transform: uppercase;
  cursor: pointer;
}
.filter-btn[aria-pressed="true"] { background: var(--ink); color: var(--surface); border-color: var(--ink); }
.filter-btn .count { opacity: .6; margin-left: .35em; }

.contact-sheet {
  display: grid;
  gap: clamp(1.5rem, 1rem + 2vw, 3rem) var(--gutter);
  grid-template-columns: 1fr;
}
@media (min-width: 680px) { .contact-sheet { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1100px) { .contact-sheet { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.project-card { display: flex; flex-direction: column; gap: .8rem; text-decoration: none; }
.project-card[hidden] { display: none; }
.project-card .media-frame img { aspect-ratio: 4 / 5; transition: transform .8s var(--ease); }
.project-card:hover .media-frame img { transform: scale(1.03); }
.project-card .frame-no {
  position: absolute; top: .6rem; left: .6rem;
  font-family: var(--font-mono); font-size: .68rem;
  background: var(--surface); color: var(--ink);
  padding: .15rem .45rem;
}
.project-card h3 { font-family: var(--font-display); font-weight: 400; font-size: var(--step-3); line-height: 1; }
.project-card .card-meta { display: flex; justify-content: space-between; gap: 1rem; color: var(--ink-soft); }

/* ---------- Case study ---------- */
.case-hero { padding-block: clamp(2rem, 1rem + 4vw, 5rem) 2rem; }
.case-hero .display { font-size: var(--step-5); margin-block: 1rem 1.5rem; }
.case-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem var(--gutter);
  border-top: var(--rule);
  padding-top: 1rem;
  margin-top: 2rem;
}
@media (min-width: 900px) { .case-facts { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.case-facts dt { font-family: var(--font-mono); font-size: var(--step--1); color: var(--ink-soft); text-transform: uppercase; letter-spacing: .04em; }
.case-facts dd { font-family: var(--font-heading); font-weight: 500; margin-top: .25rem; }
.case-body { display: grid; gap: 2.5rem; }
@media (min-width: 900px) { .case-body { grid-template-columns: 4fr 8fr; } }
.case-aside { display: flex; flex-direction: column; gap: 1rem; }
@media (min-width: 900px) { .case-aside { position: sticky; top: calc(var(--header-h) + 1.5rem); align-self: start; } }
.gallery { display: grid; gap: var(--gutter); grid-template-columns: 1fr; }
@media (min-width: 680px) { .gallery { grid-template-columns: 1fr 1fr; } .gallery .wide { grid-column: span 2; } }
.pull-quote {
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--step-3);
  line-height: 1.15;
  border-left: 3px solid var(--accent);
  padding-left: 1.25rem;
  max-width: 30ch;
}
.case-nav {
  display: flex; justify-content: space-between; gap: 1rem;
  border-top: var(--rule);
  padding-block: 1.5rem;
}

/* ---------- Infrastructure modules ---------- */
.infra-module {
  display: grid;
  gap: 1.5rem var(--gutter);
  padding-block: clamp(2.5rem, 1.5rem + 3vw, 4.5rem);
  border-top: var(--rule);
}
@media (min-width: 900px) { .infra-module { grid-template-columns: 4fr 8fr; } }
.module-header { display: flex; flex-direction: column; gap: .75rem; }
.module-num {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--accent);
  letter-spacing: .06em;
}
.module-header h2 { font-family: var(--font-display); font-weight: 400; font-size: var(--step-4); line-height: 1; }
.module-body { display: flex; flex-direction: column; gap: 1.25rem; max-width: 70ch; }
.tag-list { display: flex; flex-wrap: wrap; gap: .4rem; }
.tag-list li {
  list-style: none;
  font-family: var(--font-mono);
  font-size: .7rem;
  border: var(--rule);
  padding: .25rem .55rem;
  border-radius: 999px;
}

/* ---------- Timeline (archive) ---------- */
.timeline-container { border-top: var(--rule); }
.timeline-item {
  display: grid;
  gap: .5rem var(--gutter);
  padding-block: 1.75rem;
  border-bottom: var(--rule);
}
@media (min-width: 768px) { .timeline-item { grid-template-columns: 3fr 9fr; } }
.timeline-year {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  font-feature-settings: "tnum" 1;
  color: var(--ink-soft);
  padding-top: .35rem;
}
.timeline-content h3 { font-family: var(--font-heading); font-size: var(--step-2); font-weight: 500; }
.timeline-content h4 { font-family: var(--font-mono); font-weight: 400; font-size: var(--step--1); color: var(--ink-soft); margin-top: .4rem; text-transform: uppercase; letter-spacing: .03em; }
.timeline-content p { margin-top: .75rem; max-width: 62ch; }

.stack-grid { display: grid; gap: var(--gutter); grid-template-columns: 1fr; }
@media (min-width: 768px) { .stack-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.stack-col h3 { font-family: var(--font-mono); font-weight: 500; font-size: var(--step--1); text-transform: uppercase; letter-spacing: .05em; padding-bottom: .75rem; border-bottom: var(--rule); margin-bottom: .75rem; }
.stack-col li { list-style: none; padding-block: .35rem; border-bottom: var(--rule); display: flex; justify-content: space-between; gap: 1rem; }
.stack-col li span:last-child { font-family: var(--font-mono); font-size: var(--step--1); color: var(--ink-soft); }

.contact-block { display: grid; gap: 1.5rem; }
.contact-line {
  font-family: var(--font-display);
  font-size: var(--step-4);
  line-height: 1.1;
  text-decoration: none;
  word-break: break-word;
}
.contact-line:hover { color: var(--accent); }

/* ---------- Buttons ---------- */
.btn {
  min-height: 48px;
  display: inline-flex; align-items: center; justify-content: center; gap: .6rem;
  padding: 0 1.25rem;
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .05em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  cursor: pointer;
}
.btn-primary { background: var(--ink); color: var(--surface); }
.btn-secondary { background: transparent; color: var(--ink); }
.btn-primary:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- Footer ---------- */
.site-footer {
  border-top: var(--rule);
  padding-block: 2rem calc(2rem + env(safe-area-inset-bottom));
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: .03em;
}
.footer-inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .75rem 2rem; }
.site-footer a { text-decoration: none; }
.site-footer a:hover { color: var(--accent); }

/* ---------- Gate (/scott/) ---------- */
.gate-modal {
  position: fixed; inset: 0; z-index: 3000;
  background: var(--bg-dark);
  color: #EDEBE6;
  display: grid; place-items: center;
  padding: var(--gutter);
}
.gate-box {
  width: 100%; max-width: 420px;
  border: var(--border-dark);
  padding: clamp(1.5rem, 1rem + 2vw, 2.5rem);
  display: flex; flex-direction: column; gap: 1rem;
}
.gate-box h1 { font-family: var(--font-mono); font-size: .85rem; letter-spacing: .08em; font-weight: 500; }
.gate-box p { color: #A3A6AD; font-size: .92rem; }
.gate-box form { display: flex; flex-direction: column; gap: .75rem; }
.gate-box input {
  min-height: 48px;
  padding: 0 .9rem;
  background: #0A0B0C;
  border: var(--border-dark);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 16px; /* prevents iOS zoom */
  color: #fff;
}
.gate-box button {
  min-height: 48px;
  background: var(--accent-engineer);
  color: #fff;
  border: 0;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .08em;
  cursor: pointer;
}
.gate-box button[disabled] { opacity: .6; cursor: progress; }
.gate-error { color: var(--accent-editorial); font-family: var(--font-mono); font-size: .75rem; }
.gate-error[hidden] { display: none; }

.manifesto-section { padding-block: clamp(2.5rem, 1.5rem + 4vw, 6rem); }
.badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .06em;
  border: 1px solid var(--accent);
  color: var(--accent);
  padding: .3rem .6rem;
}
.pdf-downloads { display: flex; flex-wrap: wrap; gap: 1rem; }
.argument-list { counter-reset: arg; display: grid; gap: 0; }
.argument-list li {
  list-style: none;
  counter-increment: arg;
  display: grid; gap: .5rem 1.5rem;
  padding-block: 1.5rem;
  border-top: var(--rule);
}
@media (min-width: 768px) { .argument-list li { grid-template-columns: 3rem 1fr; } }
.argument-list li::before {
  content: counter(arg, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--accent);
  padding-top: .3rem;
}
.argument-list h3 { font-size: var(--step-1); font-weight: 500; }
.argument-list p { color: var(--ink-soft); margin-top: .35rem; max-width: 62ch; }

/* ---------- 404 ---------- */
.notfound { padding-block: 20vh; }

/* ---------- Home: asymmetric selection (magazine spread) ---------- */
.selection { display: grid; gap: clamp(1.5rem, 1rem + 2vw, 3rem) var(--gutter); }
@media (min-width: 900px) {
  .selection { grid-template-columns: 7fr 5fr; }
  .selection .project-card:first-child { grid-row: span 2; }
  .selection .project-card:not(:first-child) .media-frame img { aspect-ratio: 3 / 2; }
}
.section-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: end; gap: 1rem; margin-bottom: clamp(1.5rem, 1rem + 2vw, 3rem); }

/* ---------- Content placeholders (to be written by owner) ---------- */
.todo {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--accent-editorial);
  border: 1px dashed currentColor;
  padding: .75rem 1rem;
}
.credit-list { list-style: none; display: grid; gap: 0; border-top: var(--rule); }
.credit-list li { display: flex; justify-content: space-between; gap: 1rem; padding-block: .7rem; border-bottom: var(--rule); }
.credit-list li span:first-child { font-family: var(--font-display); font-size: var(--step-2); font-style: italic; line-height: 1.1; }
.credit-list li span:last-child { font-family: var(--font-mono); font-size: var(--step--1); color: var(--ink-soft); text-align: right; }
.gate-modal[hidden] { display: none; }
.editorial-caption span { white-space: nowrap; }
.work-group { margin: 2.5rem 0 .5rem; font-family: var(--font-mono); font-size: var(--step--1); letter-spacing: .08em; text-transform: uppercase; color: var(--ink-soft); }
.works { list-style: none; display: grid; border-top: var(--rule); }
.works .work { display: grid; grid-template-columns: 1fr auto; column-gap: 1rem; row-gap: .25rem; padding-block: .8rem; border-bottom: var(--rule); }
.works .work-title { font-family: var(--font-display); font-size: var(--step-2); font-style: italic; line-height: 1.1; }
.works .work-meta { font-family: var(--font-mono); font-size: var(--step--1); color: var(--ink-soft); text-align: right; }
.works .work-line { grid-column: 1 / -1; font-size: var(--step--1); color: var(--ink-soft); max-width: 70ch; }
.works .work a { text-decoration: underline; text-underline-offset: .2em; text-decoration-thickness: 1px; }
@media (max-width: 40em) { .works .work { grid-template-columns: 1fr; } .works .work-meta { text-align: left; } }

/* ---------- Language switch ---------- */
.lang-switch {
  min-width: 44px; min-height: 44px;
  display: inline-flex; align-items: center; justify-content: center;
  border: var(--rule); border-radius: var(--radius);
  font-family: var(--font-mono); font-size: .7rem; letter-spacing: .05em;
  text-decoration: none; padding: 0 .7rem;
}
.lang-switch:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- Case studies: hero still, player meta, video grid ---------- */
.case-still img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.status-chip {
  position: absolute; left: 1rem; bottom: 1rem;
  font-family: var(--font-mono); font-size: .7rem; letter-spacing: .05em;
  background: rgba(17,18,20,.78); color: #fff; padding: .35rem .6rem;
}
.video-facade.is-playing { cursor: default; }
.video-facade:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.player-meta {
  display: flex; flex-wrap: wrap; justify-content: flex-end; gap: .5rem 1rem;
  margin-top: .7rem; color: var(--ink-soft);
}
.yt-link { color: var(--ink-soft); text-decoration: underline; text-underline-offset: .2em; text-decoration-thickness: 1px; }
.yt-link:hover { color: var(--accent); }
.video-section { padding-top: clamp(2rem, 1rem + 3vw, 4rem); }
.video-section h2 { margin-bottom: 1.25rem; }
.video-grid { list-style: none; display: grid; gap: clamp(1.5rem, 1rem + 1.5vw, 2.5rem) var(--gutter); grid-template-columns: 1fr; }
@media (min-width: 680px) { .video-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1100px) { .video-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.video-card .play-btn { width: 56px; height: 56px; }
.video-card .play-btn svg { width: 18px; height: 18px; }
.video-cap { display: flex; flex-direction: column; gap: .3rem; padding-top: .75rem; }
.video-cap strong { font-family: var(--font-display); font-weight: 400; font-size: var(--step-2); line-height: 1.1; }
.video-cap .mono { color: var(--ink-soft); }
.video-line { font-size: var(--step--1); color: var(--ink-soft); max-width: 52ch; }
.video-cap .yt-link { margin-top: .25rem; align-self: flex-start; font-size: var(--step--1); }
.case-body { padding-top: clamp(2rem, 1rem + 3vw, 4rem); }
.video-card img { transform: scale(1.34); }
.video-card:hover img { transform: scale(1.37); }

/* ---------- v3: breadcrumbs, vertical facts, filmography, references ---------- */
.crumbs { display: flex; flex-wrap: wrap; gap: .5rem; color: var(--ink-soft); }
.crumbs a { text-decoration: underline; text-underline-offset: .2em; text-decoration-thickness: 1px; }
.crumbs a:hover { color: var(--accent); }
.case-hero .lead { max-width: 56ch; }

.facts-v { display: grid; gap: 0; border-top: var(--rule); }
.facts-v > div { display: grid; gap: .15rem; padding-block: .7rem; border-bottom: var(--rule); }
.facts-v dt { font-family: var(--font-mono); font-size: var(--step--1); letter-spacing: .05em; text-transform: uppercase; color: var(--ink-soft); }
.facts-v dd { font-size: var(--step-0); }

.prose h2 { margin: 2.25rem 0 .6rem; }
.prose h2:first-child { margin-top: 0; }
.prose.about p { font-size: var(--step-1); line-height: 1.5; max-width: 60ch; }

.refs { display: grid; gap: .5rem; padding-block: 1.25rem; border-block: var(--rule); margin-top: 1rem; }
.refs .mono { color: var(--ink-soft); }
.refs p { font-size: var(--step-0); max-width: 90ch; }

.filmo { list-style: none; border-top: var(--rule); }
.filmo-row { display: grid; grid-template-columns: 5.5rem 1fr; column-gap: 1rem; row-gap: .25rem; padding-block: .85rem; border-bottom: var(--rule); }
.filmo-year { color: var(--ink-soft); padding-top: .2rem; }
.filmo-main { display: flex; flex-direction: column; gap: .3rem; min-width: 0; }
.filmo-title { font-family: var(--font-display); font-size: var(--step-2); line-height: 1.1; }
.filmo-detail { font-size: var(--step--1); color: var(--ink-soft); max-width: 70ch; }
.filmo-meta { grid-column: 2; font-size: var(--step--1); color: var(--ink-soft); }
.filmo-meta:empty { display: none; }
.filmo a, .filmo-detail a { text-decoration: underline; text-underline-offset: .2em; text-decoration-thickness: 1px; }
.filmo a:hover { color: var(--accent); }
@media (min-width: 900px) {
  .filmo-row { grid-template-columns: 6rem 1fr 16rem; }
  .filmo-meta { grid-column: auto; text-align: right; padding-top: .35rem; }
}
.prose .filmo { max-width: none; }
.prose .filmo-title { font-size: var(--step-1); }
.case-body .prose { max-width: none; }
.case-body .prose > p, .case-body .prose > h2 { max-width: 62ch; }

/* ---------- v3: infrastructure articles ---------- */
.article-list { list-style: none; border-top: var(--rule); }
.article-row {
  display: grid; grid-template-columns: 3rem 1fr; gap: .75rem 1.25rem; align-items: start;
  padding-block: 1.4rem; border-bottom: var(--rule); text-decoration: none; color: inherit;
}
.article-row .num { color: var(--ink-soft); padding-top: .45rem; }
.article-row h2 { font-family: var(--font-display); font-weight: 400; font-size: var(--step-3); line-height: 1.05; }
.article-row p { margin-top: .4rem; color: var(--ink-soft); max-width: 60ch; }
.article-row .tag-list { grid-column: 2; }
.article-row:hover h2 { color: var(--accent); }
.article-row:focus-visible { outline: 2px solid var(--accent-engineer); outline-offset: 4px; }
@media (min-width: 900px) {
  .article-row { grid-template-columns: 3rem 1fr 18rem; }
  .article-row .tag-list { grid-column: auto; justify-content: flex-end; padding-top: .5rem; }
}

.flow { list-style: none; counter-reset: step; display: grid; gap: .75rem; margin-block: 1rem 0; }
.flow li {
  counter-increment: step; position: relative;
  border: var(--rule); border-radius: var(--radius); background: var(--surface-alt);
  padding: .9rem 1rem .9rem 2.6rem; font-family: var(--font-mono); font-size: var(--step--1);
}
.flow li::before { content: counter(step, decimal-leading-zero); position: absolute; left: .9rem; top: .95rem; color: var(--ink-soft); }
.flow li:not(:last-child)::after { content: "↓"; position: absolute; left: 1rem; bottom: -1.05rem; color: var(--accent); background: var(--surface); line-height: 1; z-index: 1; }
@media (min-width: 900px) {
  .flow { grid-auto-flow: column; grid-auto-columns: minmax(0, 1fr); gap: 1.5rem; }
  .flow li { padding: 1rem; padding-top: 2.1rem; }
  .flow li::before { left: 1rem; top: .75rem; }
  .flow li:not(:last-child)::after { content: "→"; left: auto; right: -1.3rem; bottom: auto; top: 50%; transform: translateY(-50%); background: none; }
}

/* v3: three equal project cards, calmer hero */
@media (min-width: 900px) {
  .selection { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .selection .project-card:first-child { grid-row: auto; }
}
.selection .project-card .media-frame img { aspect-ratio: 3 / 2; }
.hero-body > div:first-child { align-self: start; }

/* v3: narrow header (wordmark, language, inspect, menu on one line) */
@media (max-width: 479px) {
  .header-inner { gap: .5rem; }
  .header-actions { gap: .3rem; }
  .wordmark { font-size: .78rem; letter-spacing: .05em; }
  .lang-switch { min-width: 38px; padding: 0 .4rem; }
  .inspect-btn { padding: 0 .55rem; gap: .4rem; font-size: .62rem; letter-spacing: .02em; }
  .menu-btn { min-width: 40px; padding: 0 .5rem; font-size: .62rem; }
}
.nowrap { white-space: nowrap; }
@media (min-width: 900px) {
  .gallery { grid-template-columns: 7fr 5fr 5fr; align-items: start; }
  .gallery .wide { grid-column: auto; }
}
.gallery { margin-block: clamp(2rem, 1rem + 3vw, 4rem); }

/* Vignette YouTube (4:3 avec bandes noires) recadrée en 16:9 */
.video-facade img.yt-thumb { transform: scale(1.34); }
.video-facade:hover img.yt-thumb, .video-card:hover img { transform: scale(1.36); }