/* ============================================================
   MÉRIDIENNE — design system
   Direction : « Nuit minérale » — basalte chaud, ivoire, laiton
   Motif signature : marques de relevé (croix de calage + annotations mono)
   Motion : retenue raffinée — fondus lents, easing doux
   ============================================================ */
:root {
  /* Couleurs */
  --color-bg: #16140f;
  --color-surface: #1d1a14;
  --color-surface-2: #232019;
  --color-fg: #ede7da;
  --color-fg-muted: #a89f8f;
  --color-accent: #b9995e;
  --color-accent-hover: #d2b273;
  --color-accent-deep: #8a6f3a;
  --color-light-bg: #eae4d6;
  --color-light-fg: #211d15;
  --color-light-muted: #6b6250;
  --hairline: rgba(237, 231, 218, .14);
  --hairline-light: rgba(33, 29, 21, .16);

  /* Typographie */
  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'Hanken Grotesk', 'Segoe UI', sans-serif;
  --font-accent: 'IBM Plex Mono', 'Courier New', monospace;

  /* Espace */
  --space: 8px;
  --section-pad: clamp(4.5rem, 10vw, 8.5rem);
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --container-max: 1280px;
  --nav-h: 72px;

  /* Motion */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-back: cubic-bezier(0.34, 1.4, 0.64, 1);
  --dur: 0.55s;
  --dur-slow: 1.1s;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--color-bg);
  color: var(--color-fg);
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; color: inherit; }
ul { list-style: none; }

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

:focus-visible {
  outline: 1px solid var(--color-accent);
  outline-offset: 4px;
}

/* Grain d'atmosphère */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: .04;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
}

.skip {
  position: fixed;
  top: -100px;
  left: var(--gutter);
  z-index: 300;
  padding: .8rem 1.4rem;
  background: var(--color-accent);
  color: var(--color-bg);
  font-family: var(--font-accent);
  font-size: .75rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  transition: top var(--dur) var(--ease);
}
.skip:focus { top: 12px; }

/* ---------- Utilitaires ---------- */
.container {
  width: min(100% - 2 * var(--gutter), var(--container-max));
  margin-inline: auto;
}

.section { padding-block: var(--section-pad); position: relative; }
.section--light { background: var(--color-light-bg); color: var(--color-light-fg); }
.section--surface { background: var(--color-surface); }
.section--tight { padding-block: clamp(3rem, 6vw, 5rem); }

/* Étiquette éditoriale — motif : filet + mono */
.label {
  display: inline-flex;
  align-items: center;
  gap: .8rem;
  font-family: var(--font-accent);
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1.6rem;
}
.label::before {
  content: "";
  width: 2.4rem;
  height: 1px;
  background: var(--color-accent);
}
.section--light .label { color: var(--color-accent-deep); }
.section--light .label::before { background: var(--color-accent-deep); }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.01em;
}
h2 { font-size: clamp(2.1rem, 4.6vw, 3.4rem); }
h2 em, h1 em { font-style: italic; font-weight: 400; color: var(--color-accent); }
.section--light h2 em { color: var(--color-accent-deep); }

.lead {
  font-size: clamp(1rem, 1.4vw, 1.125rem);
  color: var(--color-fg-muted);
  max-width: 34rem;
}
.section--light .lead, .section--light p { color: var(--color-light-muted); }

.mono {
  font-family: var(--font-accent);
  font-size: .72rem;
  font-weight: 400;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--color-fg-muted);
}

/* Croix de calage — motif signature */
.mark {
  position: relative;
  display: inline-block;
  width: 13px;
  height: 13px;
  flex: none;
}
.mark::before, .mark::after {
  content: "";
  position: absolute;
  background: var(--color-accent);
}
.mark::before { left: 0; right: 0; top: 50%; height: 1px; }
.mark::after { top: 0; bottom: 0; left: 50%; width: 1px; }

/* Boutons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .65rem;
  min-height: 48px;
  padding: .95rem 1.9rem;
  font-family: var(--font-accent);
  font-size: .74rem;
  font-weight: 500;
  letter-spacing: .16em;
  text-transform: uppercase;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease),
              border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.btn--solid { background: var(--color-accent); color: var(--color-bg); }
.btn--solid:hover { background: var(--color-accent-hover); transform: translateY(-2px); }
.btn--ghost { border-color: rgba(237, 231, 218, .3); color: var(--color-fg); }
.btn--ghost:hover { border-color: var(--color-accent); color: var(--color-accent); transform: translateY(-2px); }
.section--light .btn--ghost { border-color: rgba(33, 29, 21, .3); color: var(--color-light-fg); }
.section--light .btn--ghost:hover { border-color: var(--color-accent-deep); color: var(--color-accent-deep); }

/* Lien flèche avec soulignement animé */
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  min-height: 44px;
  font-family: var(--font-accent);
  font-size: .74rem;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--color-accent);
  position: relative;
}
.section--light .link-arrow { color: var(--color-accent-deep); }
.link-arrow::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 6px;
  width: 0;
  height: 1px;
  background: currentColor;
  transition: width var(--dur) var(--ease);
}
.link-arrow:hover::after { width: 100%; }
.link-arrow .arr { transition: transform var(--dur) var(--ease); }
.link-arrow:hover .arr { transform: translateX(5px); }

/* Révélations au scroll */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--dur-slow) var(--ease), transform var(--dur-slow) var(--ease);
}
.reveal.is-in { opacity: 1; transform: translateY(0); }
.d1 { transition-delay: .08s; }
.d2 { transition-delay: .2s; }
.d3 { transition-delay: .34s; }
.d4 { transition-delay: .5s; }

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(22, 20, 15, .92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--hairline);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  min-height: 44px;
}
.nav-links { display: none; }
.nav-cta { display: none; }

.burger {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 48px;
  height: 48px;
  padding: 12px;
  background: none;
  border: 0;
  cursor: pointer;
}
.burger span {
  display: block;
  height: 1px;
  width: 100%;
  background: var(--color-fg);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}
.burger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.is-open span:nth-child(2) { opacity: 0; }
.burger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Menu mobile plein écran */
.menu {
  position: fixed;
  inset: 0;
  z-index: 150;
  background: #12100c;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--gutter);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur) var(--ease), visibility 0s linear var(--dur);
}
.menu.is-open { opacity: 1; visibility: visible; transition-delay: 0s; }
.menu a {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 8vw, 3.4rem);
  font-weight: 400;
  padding: .55rem 0;
  display: inline-flex;
  align-items: baseline;
  gap: 1.1rem;
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s var(--ease), transform .7s var(--ease), color var(--dur) var(--ease);
}
.menu.is-open a { opacity: 1; transform: translateY(0); }
.menu.is-open a:nth-child(1) { transition-delay: .1s; }
.menu.is-open a:nth-child(2) { transition-delay: .18s; }
.menu.is-open a:nth-child(3) { transition-delay: .26s; }
.menu.is-open a:nth-child(4) { transition-delay: .34s; }
.menu a:hover, .menu a[aria-current="page"] { color: var(--color-accent); }
.menu a .mono { font-size: .7rem; color: var(--color-accent); }
.menu-foot {
  position: absolute;
  bottom: calc(var(--gutter) + .5rem);
  left: var(--gutter);
  right: var(--gutter);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  isolation: isolate;
  overflow: hidden;
}
.hero--sub { min-height: 62vh; min-height: 62svh; }
.hero-media {
  position: absolute;
  inset: 0;
  z-index: -2;
}
.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  animation: heroZoom 2.6s var(--ease) both;
  filter: saturate(.92);
}
@keyframes heroZoom {
  from { transform: scale(1.07); }
  to { transform: scale(1); }
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(to top, rgba(22, 20, 15, .96) 0%, rgba(22, 20, 15, .45) 42%, rgba(22, 20, 15, .18) 70%, rgba(22, 20, 15, .38) 100%),
    linear-gradient(100deg, rgba(22, 20, 15, .55) 0%, transparent 55%);
}
.hero-inner {
  padding-top: calc(var(--nav-h) + 2rem);
  padding-bottom: clamp(3rem, 8vh, 5.5rem);
}
.hero-back {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  font-family: var(--font-accent);
  font-size: .7rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: rgba(237, 231, 218, .7);
  margin-bottom: 1.4rem;
  transition: color var(--dur) var(--ease);
}
.hero-back:hover { color: var(--color-accent); }
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: .8rem;
  font-family: var(--font-accent);
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1.8rem;
  animation: fadeUp 1.1s var(--ease) .25s both;
}
@media (min-width: 768px) {
  .hero-kicker { letter-spacing: .2em; }
}
.hero h1 {
  font-size: clamp(2.6rem, 6.4vw, 5rem);
  font-weight: 500;
  max-width: 22ch;
  margin-bottom: 1.6rem;
  animation: fadeUp 1.1s var(--ease) .4s both;
}
.hero--sub h1 { font-size: clamp(2.3rem, 5.2vw, 4rem); max-width: 20ch; }
.hero .lead {
  max-width: 38rem;
  margin-bottom: 2.4rem;
  color: rgba(237, 231, 218, .82);
  animation: fadeUp 1.1s var(--ease) .58s both;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2.6rem;
  animation: fadeUp 1.1s var(--ease) .74s both;
}
.hero-proof {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: .8rem 1.4rem;
  padding-top: 1.6rem;
  border-top: 1px solid rgba(237, 231, 218, .18);
  animation: fadeUp 1.1s var(--ease) .9s both;
}
.hero-proof .mono { color: rgba(237, 231, 218, .65); }
.hero-proof .sep { color: var(--color-accent); }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(26px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Annotations de relevé du hero */
.hero-coord {
  position: absolute;
  right: 1.9rem;
  top: 50%;
  transform: translateY(-50%);
  writing-mode: vertical-rl;
  font-family: var(--font-accent);
  font-size: .68rem;
  letter-spacing: .28em;
  color: rgba(237, 231, 218, .55);
  display: none;
  animation: fadeUp 1.4s var(--ease) 1.2s both;
}
.hero-frame .mark {
  position: absolute;
  opacity: .75;
  display: none;
}
.hero-frame .mark:nth-child(1) { top: calc(var(--nav-h) + 1.4rem); left: 1.8rem; }
.hero-frame .mark:nth-child(2) { top: calc(var(--nav-h) + 1.4rem); right: 1.8rem; }
.hero-frame .mark:nth-child(3) { bottom: 1.8rem; left: 1.8rem; }
.hero-frame .mark:nth-child(4) { bottom: 1.8rem; right: 1.8rem; }

/* ============================================================
   CHIFFRES
   ============================================================ */
.stats { border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); }
.stats-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}
.stat {
  padding: 2.2rem 0;
  border-bottom: 1px solid var(--hairline);
  display: flex;
  flex-direction: column;
  gap: .4rem;
}
.stat:last-child { border-bottom: 0; }
.stat-num {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 5vw, 3.8rem);
  font-weight: 400;
  line-height: 1;
  color: var(--color-fg);
  font-variant-numeric: tabular-nums;
}
.stat-num sup { font-size: .45em; color: var(--color-accent); margin-left: .1em; }
.stat-label { color: var(--color-fg-muted); font-size: .92rem; max-width: 22ch; }
.stat .mono { color: var(--color-accent); margin-bottom: .6rem; }

/* ============================================================
   MANIFESTE — section claire
   ============================================================ */
.manifesto-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}
.manifesto-copy h2 { max-width: 17ch; margin-bottom: 1.8rem; }
.manifesto-copy p { margin-bottom: 1.2rem; max-width: 36rem; }
.manifesto-points {
  margin-top: 2.2rem;
  display: flex;
  flex-direction: column;
}
.manifesto-points li {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 0;
  border-top: 1px solid var(--hairline-light);
  font-size: .95rem;
  color: var(--color-light-fg);
}
.manifesto-points .mono { color: var(--color-accent-deep); flex: none; }

.figure-annotated { position: relative; }
.figure-annotated img { width: 100%; height: auto; filter: saturate(.94); }
.figure-annotated .mark { position: absolute; }
.figure-annotated .mark--tl { top: -7px; left: -7px; }
.figure-annotated .mark--br { bottom: -7px; right: -7px; }
.figure-annotated figcaption {
  margin-top: 1rem;
  font-family: var(--font-accent);
  font-size: .68rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--color-light-muted);
  display: flex;
  align-items: center;
  gap: .7rem;
}
.figure-annotated figcaption::before {
  content: "";
  width: 1.6rem;
  height: 1px;
  background: var(--color-accent-deep);
}
.section:not(.section--light) .figure-annotated figcaption { color: var(--color-fg-muted); }
.section:not(.section--light) .figure-annotated figcaption::before { background: var(--color-accent); }

/* ============================================================
   PROJETS (teaser accueil)
   ============================================================ */
.projects-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: clamp(2.5rem, 6vw, 4.5rem);
}
.projects-head h2 { max-width: 16ch; }
.projects-grid, .portfolio-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2.5rem, 5vw, 4rem);
}
.project-media {
  position: relative;
  overflow: hidden;
  display: block;
}
.project-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.9);
  transition: transform 1.3s var(--ease), filter 1.3s var(--ease);
}
.project:hover .project-media img,
.project:focus-within .project-media img {
  transform: scale(1.045);
  filter: saturate(1.05);
}
.project-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(22, 20, 15, .45), transparent 45%);
  opacity: 0;
  transition: opacity .9s var(--ease);
}
.project:hover .project-media::after { opacity: 1; }
.project-tag {
  position: absolute;
  top: 1rem;
  left: 1rem;
  z-index: 2;
  padding: .4rem .7rem;
  background: rgba(22, 20, 15, .78);
  backdrop-filter: blur(6px);
  font-family: var(--font-accent);
  font-size: .66rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--color-accent);
}
.project-cap {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: .5rem 1.5rem;
  padding-top: 1.15rem;
  position: relative;
}
.project-cap::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 2.4rem;
  height: 1px;
  background: var(--color-accent);
  transition: width .9s var(--ease);
}
.project:hover .project-cap::before { width: 100%; }
.project-cap h3 { font-size: clamp(1.5rem, 2.4vw, 1.9rem); font-weight: 500; }
.project-cap .arr { transition: transform var(--dur) var(--ease); color: var(--color-accent); }
.project:hover .project-cap .arr { transform: translate(4px, -2px); }
.projects-foot {
  margin-top: clamp(2.5rem, 5vw, 4rem);
  display: flex;
  justify-content: flex-end;
}
a.project { display: block; }

/* ============================================================
   PRINCIPES — sidebar collante
   ============================================================ */
.principles-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3.5rem;
}
.principles-side h2 { max-width: 14ch; margin-bottom: 2.2rem; }
.principles-side .figure-annotated { max-width: 320px; }
.principle {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.4rem 1.8rem;
  padding: 2.2rem 0;
  border-top: 1px solid var(--hairline);
  transition: border-color var(--dur) var(--ease);
}
.principle:last-child { border-bottom: 1px solid var(--hairline); }
.principle:hover { border-top-color: var(--color-accent); }
.principle-num {
  font-family: var(--font-accent);
  font-size: .78rem;
  color: var(--color-accent);
  padding-top: .5rem;
}
.section--light .principle-num { color: var(--color-accent-deep); }
.section--light .principle { border-color: var(--hairline-light); }
.section--light .principle:hover { border-top-color: var(--color-accent-deep); }
.principle h3 {
  font-size: clamp(1.45rem, 2.2vw, 1.8rem);
  margin-bottom: .7rem;
  transition: transform var(--dur) var(--ease);
}
.principle:hover h3 { transform: translateX(6px); }
.principle p { color: var(--color-fg-muted); max-width: 34rem; }
.section--light .principle p { color: var(--color-light-muted); }

/* ============================================================
   ATELIER & MÉTHODE — section claire
   ============================================================ */
.atelier-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
  margin-bottom: clamp(3.5rem, 8vw, 6rem);
}
.atelier-copy h2 { max-width: 15ch; margin-bottom: 1.8rem; }
.atelier-copy p { margin-bottom: 1.2rem; max-width: 35rem; }
.atelier-credentials {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: .8rem 1.6rem;
}
.atelier-credentials .mono { color: var(--color-accent-deep); display: inline-flex; align-items: center; gap: .6rem; }

.process { position: relative; }
.process-track {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.4rem;
  padding-top: 2.2rem;
}
.process-draw {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--hairline-light);
  display: none;
}
.process-draw i {
  position: absolute;
  inset: 0;
  background: var(--color-accent-deep);
  transform: scaleX(0);
  transform-origin: left;
}
.step .mono { color: var(--color-accent-deep); }
.step h3 { font-size: 1.5rem; margin: .8rem 0 .6rem; }
.step p { color: var(--color-light-muted); font-size: .95rem; }

/* ============================================================
   TÉMOIGNAGES
   ============================================================ */
.quotes { position: relative; overflow: hidden; }
.watermark {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-display);
  font-size: clamp(7rem, 24vw, 22rem);
  font-weight: 600;
  white-space: nowrap;
  color: var(--color-fg);
  opacity: .025;
  pointer-events: none;
  user-select: none;
}
.quotes-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-top: clamp(2.5rem, 6vw, 4rem);
}
.quote-card {
  position: relative;
  background: var(--color-surface-2);
  border: 1px solid var(--hairline);
  padding: clamp(2rem, 4vw, 3rem);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.quote-card:hover { border-color: rgba(185, 153, 94, .45); transform: translateY(-4px); }
.quote-card::before {
  content: "«";
  position: absolute;
  top: -1.4rem;
  left: 1.6rem;
  font-family: var(--font-display);
  font-size: 5.5rem;
  line-height: 1;
  color: var(--color-accent);
  opacity: .55;
}
.quote-card blockquote {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2vw, 1.6rem);
  font-weight: 400;
  font-style: italic;
  line-height: 1.4;
  margin-bottom: 1.8rem;
}
.quote-card figcaption {
  display: flex;
  align-items: center;
  gap: .8rem;
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3.5rem;
}
.contact-info h2 { max-width: 14ch; margin-bottom: 1.6rem; }
.contact-info > p { color: var(--color-fg-muted); max-width: 30rem; margin-bottom: 2.4rem; }
.contact-rows { display: flex; flex-direction: column; }
.contact-row {
  display: flex;
  flex-direction: column;
  gap: .3rem;
  padding: 1.3rem 0;
  border-top: 1px solid var(--hairline);
}
.contact-row:last-child { border-bottom: 1px solid var(--hairline); }
.contact-row .mono { color: var(--color-accent); }
.contact-row a { transition: color var(--dur) var(--ease); }
.contact-row a:hover { color: var(--color-accent); }

.form { display: grid; grid-template-columns: 1fr; gap: 1.8rem; }
.field { display: flex; flex-direction: column; gap: .5rem; }
.field label {
  font-family: var(--font-accent);
  font-size: .68rem;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--color-fg-muted);
}
.field label span { color: var(--color-accent); }
.field input, .field textarea, .field select {
  background: transparent;
  border: 0;
  border-bottom: 1px solid rgba(237, 231, 218, .25);
  padding: .8rem 0;
  min-height: 44px;
  font-weight: 300;
  color: var(--color-fg);
  border-radius: 0;
  transition: border-color var(--dur) var(--ease);
}
.field select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23b9995e' stroke-width='1.4' fill='none'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right center; }
.field select option { background: var(--color-surface); color: var(--color-fg); }
.field textarea { resize: vertical; min-height: 110px; }
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none;
  border-bottom-color: var(--color-accent);
}
.field input::placeholder, .field textarea::placeholder { color: rgba(168, 159, 143, .5); }
.form-foot {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  align-items: flex-start;
}
.form-note { font-size: .82rem; color: var(--color-fg-muted); max-width: 30rem; }
.form-success {
  display: none;
  font-family: var(--font-accent);
  font-size: .78rem;
  letter-spacing: .1em;
  color: var(--color-accent);
}
.form.is-sent .form-success { display: block; }

/* ============================================================
   PIED DE PAGE
   ============================================================ */
.footer {
  background: #100e0a;
  border-top: 1px solid var(--hairline);
  padding-top: clamp(3.5rem, 7vw, 5.5rem);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.8rem;
  padding-bottom: clamp(2.5rem, 6vw, 4rem);
}
.footer-brand p { color: var(--color-fg-muted); font-size: .92rem; max-width: 26rem; margin-top: 1.1rem; }
.footer h4 {
  font-family: var(--font-accent);
  font-size: .7rem;
  font-weight: 500;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1.2rem;
}
.footer li { padding: .35rem 0; }
.footer li a, .footer li span { color: var(--color-fg-muted); font-size: .92rem; transition: color var(--dur) var(--ease); }
.footer li a:hover, .footer li a[aria-current="page"] { color: var(--color-fg); }
.footer-bar {
  border-top: 1px solid var(--hairline);
  padding: 1.4rem 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: .8rem 1.5rem;
}
.footer-bar .mono { color: rgba(168, 159, 143, .7); text-transform: none; }
.footer-coord { display: inline-flex; align-items: center; gap: .8rem; }

/* ============================================================
   PAGE-HEAD — bandeau d'intro (pages intérieures sans hero image)
   ============================================================ */
.page-head {
  padding-top: calc(var(--nav-h) + clamp(3rem, 9vw, 6rem));
  padding-bottom: clamp(3rem, 7vw, 5rem);
}
.page-head h1 { font-size: clamp(2.4rem, 5.6vw, 4.2rem); max-width: 19ch; margin-bottom: 1.4rem; }
.page-head .lead { max-width: 40rem; font-size: clamp(1rem, 1.3vw, 1.15rem); }
.page-head-foot {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

/* ============================================================
   PORTFOLIO (page réalisations) — grille asymétrique à 4
   ============================================================ */
@media (min-width: 768px) {
  .portfolio-grid { grid-template-columns: repeat(12, 1fr); }
  .portfolio-a { grid-column: 1 / 8; }
  .portfolio-b { grid-column: 8 / 13; margin-top: 5.5rem; }
  .portfolio-c { grid-column: 2 / 8; margin-top: 2rem; }
  .portfolio-d { grid-column: 8 / 13; }
  .portfolio-a .project-media { aspect-ratio: 5 / 4; }
  .portfolio-b .project-media { aspect-ratio: 3 / 4; }
  .portfolio-c .project-media { aspect-ratio: 4 / 3; }
  .portfolio-d .project-media { aspect-ratio: 3 / 4; }
}

/* ============================================================
   ÉTUDE DE CAS PROJET
   ============================================================ */
.case-meta {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.8rem 2rem;
  padding: 2.2rem 0;
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  margin-bottom: clamp(3rem, 6vw, 5rem);
}
.case-meta-item { display: flex; flex-direction: column; gap: .5rem; }
.case-meta-item .mono { color: var(--color-accent); }
.case-meta-item strong { font-family: var(--font-display); font-size: 1.35rem; font-weight: 500; }
@media (min-width: 768px) { .case-meta { grid-template-columns: repeat(4, 1fr); } }

.case-section {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.2rem;
  align-items: center;
  margin-bottom: clamp(3.5rem, 7vw, 6rem);
}
.case-section-copy h2 { max-width: 17ch; margin-bottom: 1.2rem; }
.case-section-copy p { margin-bottom: 1.1rem; max-width: 34rem; }
@media (min-width: 1024px) {
  .case-section { grid-template-columns: 6fr 6fr; gap: clamp(3rem, 6vw, 5rem); }
  .case-section--reverse .case-section-media { order: 2; }
  .case-section--reverse .case-section-copy { order: 1; }
}

.case-gallery {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.4rem;
  margin-bottom: clamp(3.5rem, 7vw, 6rem);
}
.case-gallery img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4/3; filter: saturate(.92); transition: filter .9s var(--ease), transform .9s var(--ease); }
.case-gallery figure { overflow: hidden; }
.case-gallery figure:hover img { filter: saturate(1.02); transform: scale(1.03); }
@media (min-width: 768px) { .case-gallery { grid-template-columns: 1fr 1fr; } }

.case-nav {
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--hairline);
}
.case-nav a {
  display: flex;
  flex-direction: column;
  gap: .5rem;
  padding: clamp(1.8rem, 4vw, 2.6rem);
  transition: background var(--dur) var(--ease);
  border-bottom: 1px solid var(--hairline);
}
.case-nav a:hover { background: var(--color-surface); }
.case-nav a:hover h3 { color: var(--color-accent); }
.case-nav a h3 { transition: color var(--dur) var(--ease); }
@media (min-width: 768px) {
  .case-nav { grid-template-columns: 1fr 1fr; }
  .case-nav a:first-child { border-right: 1px solid var(--hairline); }
  .case-nav a:last-child { align-items: flex-end; text-align: right; }
}

/* ============================================================
   CHIFFRES & CITATION (étude de cas)
   ============================================================ */
.case-stats {
  background: var(--color-surface);
  margin-inline: calc(-1 * var(--gutter));
  padding-block: clamp(2.5rem, 5vw, 4rem);
  margin-bottom: clamp(3.5rem, 7vw, 6rem);
}
.case-stats .stats-grid { grid-template-columns: 1fr; gap: 2rem; padding-inline: var(--gutter); }
@media (min-width: 768px) { .case-stats .stats-grid { grid-template-columns: repeat(3, 1fr); } }

.case-quote { grid-template-columns: 1fr; max-width: 42rem; margin-bottom: clamp(3.5rem, 7vw, 6rem); }

/* ============================================================
   TIMELINE (atelier)
   ============================================================ */
.timeline { border-top: 1px solid var(--hairline-light); }
.timeline-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: .4rem;
  padding: 1.6rem 0;
  border-bottom: 1px solid var(--hairline-light);
}
.timeline-item .mono { color: var(--color-accent-deep); font-size: .8rem; }
.timeline-item p { color: var(--color-light-muted); max-width: 40rem; }
@media (min-width: 768px) {
  .timeline-item { grid-template-columns: 8rem 1fr; align-items: baseline; gap: 1.5rem; }
}

/* ============================================================
   FAQ (contact)
   ============================================================ */
.faq { border-top: 1px solid var(--hairline); margin-top: clamp(3rem, 6vw, 4.5rem); }
.faq-item { padding: 1.8rem 0; border-bottom: 1px solid var(--hairline); }
.faq-item h3 { font-size: clamp(1.15rem, 1.8vw, 1.35rem); margin-bottom: .6rem; font-weight: 500; }
.faq-item p { color: var(--color-fg-muted); max-width: 36rem; }

/* ============================================================
   PAGES LÉGALES
   ============================================================ */
.legal-updated {
  font-family: var(--font-accent);
  font-size: .72rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--color-fg-muted);
  margin-bottom: 2.5rem;
}
.legal-body { max-width: 68ch; }
.legal-body h2 { font-size: clamp(1.5rem, 2.6vw, 1.9rem); margin: 3rem 0 1rem; }
.legal-body h2:first-child { margin-top: 0; }
.legal-body p { color: var(--color-fg-muted); margin-bottom: 1rem; max-width: 68ch; }
.legal-body ul, .legal-body ol { padding-left: 1.4rem; margin-bottom: 1.2rem; }
.legal-body li { list-style: disc; margin-bottom: .5rem; color: var(--color-fg-muted); }
.legal-body strong { color: var(--color-fg); font-weight: 500; }
.legal-body a { color: var(--color-accent); border-bottom: 1px solid rgba(185, 153, 94, .35); }
.legal-body a:hover { border-bottom-color: var(--color-accent); }

/* ============================================================
   BREAKPOINTS
   ============================================================ */
@media (min-width: 768px) {
  :root { --nav-h: 80px; }

  .nav-links {
    display: flex;
    align-items: center;
    gap: 2.2rem;
    margin-left: auto;
    margin-right: 2.2rem;
  }
  .nav-links a {
    font-family: var(--font-accent);
    font-size: .72rem;
    font-weight: 500;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--color-fg-muted);
    padding: .8rem 0;
    position: relative;
    transition: color var(--dur) var(--ease);
  }
  .nav-links a::after {
    content: "";
    position: absolute;
    left: 0; bottom: .4rem;
    width: 0; height: 1px;
    background: var(--color-accent);
    transition: width var(--dur) var(--ease);
  }
  .nav-links a:hover { color: var(--color-fg); }
  .nav-links a:hover::after { width: 100%; }
  .nav-links a[aria-current="page"] { color: var(--color-fg); }
  .nav-links a[aria-current="page"]::after { width: 100%; }
  .nav-cta { display: inline-flex; padding: .7rem 1.4rem; min-height: 44px; }
  .burger { display: none; }

  .hero-coord { display: block; }
  .hero-frame .mark { display: inline-block; }

  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 0 3rem; }
  .stat { border-bottom: 1px solid var(--hairline); }
  .stat:nth-last-child(-n+2) { border-bottom: 0; }

  .quotes-grid { grid-template-columns: 1fr 1fr; }
  .quote-card--offset { margin-top: 4rem; }

  .process-track { grid-template-columns: repeat(2, 1fr); gap: 3rem 2.5rem; }
  .process-draw { display: block; }

  .projects-grid { grid-template-columns: repeat(12, 1fr); }
  .project--a { grid-column: 1 / 8; }
  .project--b { grid-column: 8 / 13; margin-top: 5.5rem; }
  .project--c { grid-column: 4 / 11; }
  .project--a .project-media { aspect-ratio: 5 / 4; }
  .project--b .project-media { aspect-ratio: 3 / 4; }
  .project--c .project-media { aspect-ratio: 16 / 10; }
}

@media (min-width: 1024px) {
  .manifesto-grid { grid-template-columns: 7fr 5fr; gap: clamp(3rem, 6vw, 6rem); }
  .manifesto-media { margin-top: -4rem; }

  .principles-grid { grid-template-columns: 5fr 7fr; gap: clamp(3rem, 6vw, 6rem); }
  .principles-side { position: sticky; top: calc(var(--nav-h) + 2.5rem); align-self: start; }

  .atelier-grid { grid-template-columns: 6fr 6fr; gap: clamp(3rem, 6vw, 5.5rem); }
  .atelier-media { margin-bottom: -7rem; }

  .process-track { grid-template-columns: repeat(4, 1fr); }

  .contact-grid { grid-template-columns: 5fr 6fr; gap: clamp(4rem, 7vw, 7rem); }

  .footer-grid { grid-template-columns: 4fr 2fr 3fr 3fr; gap: 2rem; }
}

/* ============================================================
   MOUVEMENT RÉDUIT
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001s !important;
    animation-delay: 0s !important;
    transition-duration: 0.001s !important;
    transition-delay: 0s !important;
  }
  .reveal { opacity: 1; transform: none; }
  .process-draw i { transform: scaleX(1); }
  .hero-media img { animation: none; }
}