/* ===================================================================
   POTIOK — Design system
   Palette stricte : jaune / bleu-vert / corail / beige / gris clair /
   anthracite / blanc. Titres ferrés à gauche. Grille cohérente.
   =================================================================== */

:root{
  --jaune: #F2CB88;
  --bleu-vert: #58838F;
  --corail: #F0A08A;
  --beige: #FBF5E8;
  --gris-clair: #E2E2E1;
  --anthracite: #353944;
  --blanc: #FFFFFF;

  --ink: var(--anthracite);
  --ink-muted: #6C7079;
  --line: var(--gris-clair);

  --maxw: 1320px;
  --header-h: 92px;
  --radius: 3px;

  --font-head: 'Archivo', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --font-accent: 'Instrument Serif', serif;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; font-size: 19px; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *{ animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

body{
  margin: 0;
  background: var(--blanc);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img{ max-width: 100%; display: block; }
a{ color: inherit; }
::selection{ background: var(--jaune); color: var(--anthracite); }

a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, summary:focus-visible{
  outline: 2px solid var(--anthracite);
  outline-offset: 3px;
}

.wrap{
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 40px;
}

h1, h2, h3, h4{
  font-family: var(--font-head);
  font-weight: 700;
  margin: 0;
  text-align: left;
}

section{ scroll-margin-top: calc(var(--header-h) + 24px); }
[id]{ scroll-margin-top: calc(var(--header-h) + 24px); }

.eyebrow{
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.03em;
  color: var(--ink-muted);
  margin: 0 0 16px;
}

.accent{
  font-family: var(--font-accent);
  font-style: italic;
  font-weight: 400;
  color: var(--corail);
  text-transform: none;
}

.bg-white{ background: var(--blanc); }
.bg-beige{ background: var(--beige); }
.bg-bleu-vert{ background: var(--bleu-vert); color: var(--blanc); }
.bg-bleu-vert .eyebrow{ color: rgba(255,255,255,0.75); }
.bg-bleu-vert .ink-muted{ color: rgba(255,255,255,0.8); }
.bg-jaune{ background: var(--jaune); color: var(--anthracite); }
.bg-jaune .eyebrow{ color: var(--anthracite); opacity: 0.65; }
.bg-corail{ background: var(--corail); color: var(--anthracite); }
.bg-corail .eyebrow{ color: var(--anthracite); opacity: 0.65; }
.bg-anthracite{ background: var(--anthracite); color: var(--beige); }
.bg-anthracite .eyebrow{ color: var(--jaune); }
.bg-jaune .section-head p, .bg-corail .section-head p{ color: var(--anthracite); opacity: 0.75; }
.bg-anthracite .section-head p{ color: var(--beige); opacity: 0.75; }
.bg-jaune .btn-primary, .bg-jaune .btn-fill, .bg-corail .btn-primary, .bg-corail .btn-fill{ background: var(--anthracite); color: var(--beige); border-color: var(--anthracite); }
.bg-jaune .btn-primary:hover, .bg-jaune .btn-fill:hover, .bg-corail .btn-primary:hover, .bg-corail .btn-fill:hover{ background: var(--blanc); color: var(--anthracite); border-color: var(--blanc); }
.bg-anthracite .btn-primary, .bg-anthracite .btn-fill{ background: var(--jaune); color: var(--anthracite); border-color: var(--jaune); }
.bg-anthracite .btn-secondary, .bg-anthracite .btn-line{ color: var(--beige); border-color: var(--beige); }

.accent-jaune{ --accent: var(--jaune); }
.accent-bleu-vert{ --accent: var(--bleu-vert); }
.accent-corail{ --accent: var(--corail); }
.accent-anthracite{ --accent: var(--anthracite); }

.btn{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.98rem;
  padding: 15px 26px;
  border-radius: var(--radius);
  text-decoration: none;
  border: 1.5px solid var(--anthracite);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.btn-primary, .btn-fill{ background: var(--anthracite); color: var(--blanc); border-color: var(--anthracite); }
.btn-primary:hover, .btn-fill:hover{ background: var(--corail); border-color: var(--corail); color: var(--anthracite); }
.btn-secondary, .btn-line{ background: transparent; color: var(--anthracite); }
.btn-secondary:hover, .btn-line:hover{ background: var(--anthracite); color: var(--blanc); }
.bg-bleu-vert .btn-primary, .bg-bleu-vert .btn-fill{ background: var(--jaune); color: var(--anthracite); border-color: var(--jaune); }
.bg-bleu-vert .btn-primary:hover, .bg-bleu-vert .btn-fill:hover{ background: var(--blanc); border-color: var(--blanc); color: var(--anthracite); }
.bg-bleu-vert .btn-secondary{ color: var(--blanc); border-color: var(--blanc); }
.bg-bleu-vert .btn-secondary:hover{ background: var(--blanc); color: var(--bleu-vert); }

.ico{ width: 28px; height: 28px; }
.ico-arrow{ width: 16px; height: 16px; }
.ico-play{ width: 20px; height: 20px; }

/* ---------------------------------------------------------------
 * HEADER / NAV
 * --------------------------------------------------------------- */
.site-header{
  position: sticky;
  top: 0;
  z-index: 200;
  background: var(--blanc);
  border-bottom: 1px solid var(--line);
}
.header-inner{
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo{
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.9rem;
  letter-spacing: 0.01em;
  text-decoration: none;
  color: var(--anthracite);
  display: inline-flex;
  align-items: center;
}
.logo-img{ height: 22px; width: auto; display: block; }
.site-footer .logo-img{ filter: invert(1); }
.main-nav{ display: flex; }
.nav-list{
  display: flex;
  align-items: center;
  gap: 42px;
  list-style: none;
  margin: 0; padding: 0;
}
.nav-item{ position: relative; }
.nav-link{
  text-decoration: none;
  font-weight: 500;
  font-size: 1.05rem;
  color: var(--anthracite);
  padding: 8px 0;
}
.nav-link:hover{ color: var(--bleu-vert); }
.nav-cta{
  padding: 11px 20px;
  border: 1.5px solid var(--anthracite);
  border-radius: var(--radius);
  transition: background 0.15s ease, color 0.15s ease;
}
.nav-cta:hover{ background: var(--anthracite); color: var(--blanc); }

.submenu{
  list-style: none;
  margin: 0; padding: 10px 0;
  position: absolute;
  top: 100%; left: -16px;
  background: var(--blanc);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  min-width: 220px;
  box-shadow: 0 12px 24px rgba(53,57,68,0.08);
  opacity: 0;
  visibility: hidden;
  transform: translateY(4px);
  transition: opacity 0.15s ease, transform 0.15s ease, visibility 0.15s ease;
}
.nav-item.has-sub:hover .submenu,
.nav-item.has-sub:focus-within .submenu,
.nav-item.has-sub.is-open .submenu{
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.submenu li a{
  display: block;
  padding: 10px 20px;
  text-decoration: none;
  color: var(--anthracite);
  font-size: 0.95rem;
}
.submenu li a:hover{ background: var(--beige); color: var(--bleu-vert); }

.menu-btn{
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px; height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}
.menu-btn span{
  display: block;
  height: 2px;
  background: var(--anthracite);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.menu-btn[aria-expanded="true"] span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
.menu-btn[aria-expanded="true"] span:nth-child(2){ opacity: 0; }
.menu-btn[aria-expanded="true"] span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }

/* ---------------------------------------------------------------
 * HERO — split hybride (texte ferré à gauche / showreel cadré)
 * --------------------------------------------------------------- */
.hero{
  padding: 78px 0 64px;
  background: var(--bleu-vert);
}
.hero-grid{
  display: flex;
  flex-direction: column;
  gap: 28px;
  width: 100%;
}
.hero-top-text{ max-width: none; }

.hero-title{
  font-size: clamp(2.6rem, 4.6vw, 4.6rem);
  line-height: 1.06;
  margin: 0 0 30px;
  color: var(--anthracite);
}
.hero-top-text .lede{
  font-size: 1.05rem;
  color: var(--blanc);
  opacity: 0.9;
  margin: 0;
  max-width: 70ch;
}

/* Titre du hero sur une seule ligne, en capitales condensées. */
.big-title{
  font-family: var(--font-head);
  font-weight: 800;
  text-transform: uppercase;
  line-height: 1.05;
  letter-spacing: -0.01em;
  margin: 0 0 14px;
  color: var(--blanc);
}
.big-title .line{
  display: block;
  font-size: clamp(1.1rem, 2vw, 1.7rem);
  white-space: nowrap;
}
.big-title .line:nth-child(2){ color: var(--jaune); }

.hero .eyebrow{
  color: var(--blanc);
  opacity: 1;
  font-family: var(--font-head);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1.02;
  margin-bottom: 18px;
  white-space: nowrap;}
.h1-like-home-eyebrow{
  color: var(--beige);
  opacity: 1;
  font-family: var(--font-head);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1.02;
  margin-bottom: 18px;
  white-space: nowrap;
}
@media (max-width: 700px){ .h1-like-home-eyebrow{ font-size: 1.6rem; white-space: normal; } }
.hero-actions{
  display: flex;
  flex-wrap: nowrap;
  gap: 14px;
}
.hero-actions .btn{ white-space: nowrap; }
.hero-actions .btn-line{ background: var(--blanc); color: var(--anthracite); border-color: var(--blanc); }
.hero-btn-primary:hover{ background: var(--jaune) !important; border-color: var(--jaune) !important; color: var(--anthracite) !important; }

.hero-points{
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}
.hero-points li{
  font-family: var(--font-head);
  font-weight: 800;
  text-transform: uppercase;
  font-size: clamp(1.1rem, 2vw, 1.5rem);
}
.hero-points li.hp-0{ color: var(--jaune); }
.hero-points li.hp-1{ color: var(--corail); }
.hero-points li.hp-2{ color: var(--blanc); }
.hero-actions .btn-line:hover{ background: var(--anthracite); color: var(--blanc); border-color: var(--anthracite); }

.video-frame{
  position: relative;
  aspect-ratio: 16/9;
  border: 3px solid var(--blanc);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--anthracite);
  box-shadow: 0 20px 44px rgba(53,57,68,0.18);
}
.yt-embed{
  position: relative;
  width: 100%; height: 100%;
  cursor: pointer;
  background: var(--anthracite);
}
.yt-embed img{
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}
.yt-play{
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 64px; height: 64px;
  border-radius: 50%;
  background: rgba(251,245,232,0.92);
  display: flex; align-items: center; justify-content: center;
  color: var(--anthracite);
  transition: background 0.15s ease, transform 0.15s ease;
}
.yt-embed:hover .yt-play{ background: var(--jaune); transform: translate(-50%, -50%) scale(1.06); }
.yt-embed iframe{
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  border: 0;
}

/* Lecture automatique sans le son (grands lecteurs) : l'image reste visible jusqu'à ce que
   YouTube confirme que la lecture a démarré, puis fondu vers la vidéo. */
.yt-embed.yt-muted iframe{ opacity: 0; pointer-events: none; transition: opacity 0.7s ease; }
.yt-embed.yt-muted.yt-live iframe{ opacity: 1; }
.yt-embed.yt-live .yt-play{ display: none; }
.yt-sound{
  display: none;
  position: absolute; left: 18px; bottom: 18px; z-index: 3;
  align-items: center; gap: 9px;
  padding: 9px 16px;
  border-radius: 999px;
  background: rgba(53,57,68,0.85);
  color: var(--blanc);
  font-family: var(--font-body);
  font-weight: 600; font-size: 0.85rem; line-height: 1;
  pointer-events: none;
  transition: background 0.15s ease, color 0.15s ease;
}
.yt-sound svg{ width: 18px; height: 18px; flex: none; }
.yt-embed.yt-live .yt-sound{ display: inline-flex; }
.yt-embed:hover .yt-sound{ background: var(--jaune); color: var(--anthracite); }

/* ---------------------------------------------------------------
 * TICKER
 * --------------------------------------------------------------- */
.ticker{
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
  padding: 18px 0;
}
.ticker-track{
  display: flex;
  width: max-content;
  animation: ticker-scroll 34s linear infinite;
}
.ticker-track span{
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--ink-muted);
  padding: 0 28px;
  border-left: 1px solid var(--line);
  white-space: nowrap;
}
.ticker-track span:first-child{ border-left: none; }
@keyframes ticker-scroll{
  from{ transform: translateX(0); }
  to{ transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce){
  .ticker-track{ animation: none; flex-wrap: wrap; width: auto; }
}

/* ---------------------------------------------------------------
 * SECTION SHARED
 * --------------------------------------------------------------- */
.section{ padding: 52px 0; }
.section-head{
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 40px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}
.section-head h2{
  font-size: clamp(2.1rem, 3.6vw, 3.1rem);
  max-width: 16ch;
  text-transform: uppercase;
  line-height: 1.02;
}
.section-head h2.one-line{ white-space: nowrap; max-width: none; }
.section-head p{
  color: var(--ink-muted);
  max-width: none;
  margin: 0;
  white-space: nowrap;
}

/* ---------------------------------------------------------------
 * EXPERTISES
 * --------------------------------------------------------------- */
.expertise-grid{
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.expertise-card{
  background: var(--blanc);
  padding: 32px 26px;
  text-decoration: none;
  color: var(--ink);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  border-top: 3px solid var(--accent, var(--anthracite));
  transition: background 0.15s ease;
}
.expertise-card:hover{ background: var(--beige); }
.expertise-icon{ color: var(--accent, var(--anthracite)); margin-bottom: 18px; }
.expertise-card h3{ font-size: 1.1rem; margin-bottom: 10px; }
.expertise-card p{ font-size: 0.92rem; color: var(--ink-muted); margin: 0 0 20px; flex-grow: 1; }
.expertise-link{
  font-size: 0.88rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* ---------------------------------------------------------------
 * METHODE
 * --------------------------------------------------------------- */
.method-grid{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.method-step{
  border-top: 1px solid var(--line);
  padding-top: 22px;
}
.method-num{
  font-family: var(--font-mono);
  color: var(--corail);
  font-size: 0.95rem;
  display: block;
  margin-bottom: 14px;
}
.method-step h3{ font-size: 1.15rem; margin-bottom: 10px; }
.method-step p{ color: var(--ink-muted); margin: 0; font-size: 0.94rem; }

/* ---------------------------------------------------------------
 * PORTFOLIO
 * --------------------------------------------------------------- */
.portfolio-featured{
  margin-bottom: 40px;
}
.realisation-card{
  text-decoration: none;
  color: var(--ink);
  display: block;
}
.realisation-frame{
  position: relative;
  display: block;
  aspect-ratio: 16/9;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--anthracite);
}
.realisation-frame img{ width: 100%; height: 100%; object-fit: cover; opacity: 0.9; transition: transform 0.3s ease, opacity 0.3s ease; }
.realisation-card:hover .realisation-frame img{ transform: scale(1.02); opacity: 1; }
.realisation-play{
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 52px; height: 52px;
  border-radius: 50%;
  background: rgba(251,245,232,0.92);
  display: flex; align-items: center; justify-content: center;
  color: var(--anthracite);
}
.portfolio-featured .realisation-play{ width: 74px; height: 74px; }
.realisation-meta{
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding-top: 16px;
  border-bottom: 3px solid var(--accent, var(--line));
  padding-bottom: 14px;
}
.realisation-title{ font-family: var(--font-head); font-weight: 700; font-size: 1.05rem; }
.realisation-tag{ font-family: var(--font-mono); font-size: 0.8rem; color: var(--ink-muted); white-space: nowrap; }
.portfolio-featured .realisation-title{ font-size: 1.4rem; }

.grid-realisations{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

/* ---------------------------------------------------------------
 * MANIFESTE
 * --------------------------------------------------------------- */
.manifesto{
  padding: 96px 0;
}
.manifesto p.lead{
  font-family: var(--font-head);
  font-weight: 600;
  font-size: clamp(1rem, 1.8vw, 1.4rem);
  margin: 0 0 22px;
  color: inherit;
  white-space: nowrap;
}
.manifesto-points{
  list-style: none;
  margin: 0; padding: 0;
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
}
.manifesto-points li{
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.5rem, 3vw, 2.4rem);
}
.manifesto-points li:nth-child(1){ color: var(--jaune); }
.manifesto-points li:nth-child(2){ color: var(--corail); }
.manifesto-points li:nth-child(3){ color: var(--blanc); }

/* ---------------------------------------------------------------
 * CONTACT
 * --------------------------------------------------------------- */
.contact-section{ padding: 96px 0; }
.contact-grid{
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 64px;
}
.contact-title{
  font-size: clamp(1.9rem, 3.4vw, 3rem);
  line-height: 1.08;
  margin: 0 0 20px;
}
.contact-grid .lede{ max-width: 40ch; opacity: 0.92; }

.field{ margin-bottom: 20px; }
.field label{
  display: block;
  font-size: 0.85rem;
  margin-bottom: 8px;
  color: rgba(255,255,255,0.85);
}
.field input, .field textarea{
  width: 100%;
  background: rgba(255,255,255,0.08);
  border: 1.5px solid rgba(255,255,255,0.4);
  border-radius: var(--radius);
  color: var(--blanc);
  padding: 13px 14px;
  font-family: var(--font-body);
  font-size: 0.98rem;
  resize: vertical;
}
.field input::placeholder, .field textarea::placeholder{ color: rgba(255,255,255,0.5); }
.field input:focus, .field textarea:focus{ border-color: var(--jaune); outline: none; }
.hp-field{ position: absolute; left: -9999px; }
.privacy-note{ font-size: 0.82rem; color: rgba(255,255,255,0.75); margin-top: 14px; max-width: none; }

.form-notice{
  padding: 14px 16px;
  border-radius: var(--radius);
  font-size: 0.92rem;
  margin-bottom: 22px;
  border: 1.5px solid rgba(255,255,255,0.5);
}

/* ---------------------------------------------------------------
 * PAGE EXPERTISE
 * --------------------------------------------------------------- */
.page-hero{
  padding: 0;
}
.page-hero-stack{
  padding-top: 56px;
  padding-bottom: 64px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.page-hero-grid{
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 56px;
  align-items: center;
}
.page-hero h1{
  font-size: clamp(1.8rem, 3.6vw, 3.2rem);
  text-wrap: balance;
  line-height: 1.04;
  margin-bottom: 22px;
  text-transform: uppercase;
  font-family: var(--font-head);
  font-weight: 800;
}
.hl-beige{ color: var(--beige); }
.page-hero p.lede{ color: inherit; opacity: 0.85; font-size: 1.05rem; max-width: 56ch; }
.page-hero p.lede-wide{ max-width: none !important; font-size: 1.15rem; text-align: justify; text-align-last: left; }

.bg-anthracite .cequonfait-list{ border-top-color: rgba(251,245,232,0.2); }
.bg-anthracite .cequonfait-list li{ border-bottom-color: rgba(251,245,232,0.2); }

/* Titres pleine largeur (pages expertises) : gros, 1 ligne si possible, 2 max.
   Version non-scopée en plus, car ce titre apparaît aussi hors de .section-head
   (bloc "Notre approche" avec visuel) — sans ça il perdait ses majuscules. */
.section-head h2.wide,
h2.wide{
  font-family: var(--font-head);
  font-weight: 700;
  text-transform: uppercase;
  line-height: 1.02;
  max-width: none;
  font-size: clamp(1.8rem, 3.6vw, 3.2rem);
  white-space: normal;
  margin: 0 0 24px;
}
.wide-copy{ max-width: none; font-size: 1.08rem; }
.wide-copy p{ max-width: 90ch; }

/* ---------------------------------------------------------------
 * PAGE AGENCE — manifeste plein écran, une conviction à la fois
 * --------------------------------------------------------------- */
.manifesto-full{ padding: 56px 0; }
.manifesto-full .eyebrow{ min-height: 1.2em; }
.manifesto-full-title{
  font-family: var(--font-head);
  font-weight: 800;
  text-transform: uppercase;
  font-size: clamp(1.8rem, 3.6vw, 3.2rem);
  line-height: 1.05;
  max-width: none;
  white-space: nowrap;
  margin: 0 0 28px;
}
@media (max-width: 700px){ .manifesto-full-title{ white-space: normal; } }
.manifesto-full-copy{ max-width: none; }
.manifesto-full-copy p{ font-size: 1.15rem; margin: 0 0 20px; opacity: 0.85; }
.manifesto-full-copy p:last-child{ margin-bottom: 0; }
@media (max-width: 700px){ .manifesto-full{ padding: 48px 0; } }

/* ---------------------------------------------------------------
 * PAGE AGENCE — manifeste, promesses, équipe
 * --------------------------------------------------------------- */
.manifesto-blocks{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px 56px;
}
.manifesto-block{
  padding-top: 24px;
  border-top: 3px solid var(--line);
}
.manifesto-block:nth-child(1){ border-top-color: var(--jaune); }
.manifesto-block:nth-child(2){ border-top-color: var(--corail); }
.manifesto-block:nth-child(3){ border-top-color: var(--bleu-vert); }
.manifesto-block:nth-child(4){ border-top-color: var(--anthracite); }
.manifesto-block-num{
  display: block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  margin-bottom: 16px;
}
.manifesto-block:nth-child(1) .manifesto-block-num{ color: var(--corail); }
.manifesto-block:nth-child(2) .manifesto-block-num{ color: var(--corail); }
.manifesto-block:nth-child(3) .manifesto-block-num{ color: var(--bleu-vert); }
.manifesto-block:nth-child(4) .manifesto-block-num{ color: var(--anthracite); }
.manifesto-block h3{
  font-family: var(--font-head); font-weight: 800; text-transform: uppercase;
  font-size: clamp(1.4rem, 2.2vw, 1.9rem); margin: 0 0 18px; color: var(--anthracite);
}
.manifesto-block p{ margin: 0 0 14px; color: var(--ink-muted); max-width: 50ch; }
.manifesto-block p:last-child{ margin-bottom: 0; }
@media (max-width: 800px){ .manifesto-blocks{ grid-template-columns: 1fr; gap: 32px; } }

.manifesto-closing{
  display: flex; gap: 32px; flex-wrap: wrap; padding: 56px 0 0;
  list-style: none; margin: 0;
}
.manifesto-closing li{
  font-family: var(--font-head); font-weight: 800; text-transform: uppercase;
  font-size: clamp(1.3rem, 2.6vw, 2rem); color: var(--anthracite);
}

.promesses-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.promesse-card{
  background: var(--blanc);
  border-top: 3px solid var(--corail);
  padding: 30px 26px;
}
.promesse-card h3{ font-family: var(--font-head); font-weight: 700; font-size: 1.1rem; margin: 0 0 12px; }
.promesse-card p{ margin: 0; color: var(--ink-muted); font-size: 0.95rem; }
@media (max-width: 900px){ .promesses-grid{ grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px){ .promesses-grid{ grid-template-columns: 1fr; } }

.team-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.team-card{ display: flex; flex-direction: column; }
.team-photo{
  aspect-ratio: 1/1;
  border-radius: 2px;
  margin-bottom: 20px;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-head); font-weight: 800; font-size: 2.4rem;
}
.team-card:nth-child(1) .team-photo{ background: var(--jaune); color: var(--anthracite); }
.team-card:nth-child(2) .team-photo{ background: var(--corail); color: var(--anthracite); }
.team-card:nth-child(3) .team-photo{ background: var(--bleu-vert); color: var(--blanc); }
.team-photo img{ width: 100%; height: 100%; object-fit: cover; border-radius: 2px; }
.team-card h3{ font-family: var(--font-head); font-weight: 700; font-size: 1.2rem; margin: 0 0 4px; }
.team-card .role{ font-family: var(--font-mono); font-size: 0.82rem; color: var(--corail); margin: 0 0 14px; display: block; }
.team-card p{ color: var(--ink-muted); font-size: 0.95rem; margin: 0; }
@media (max-width: 800px){ .team-grid{ grid-template-columns: 1fr; } }

/* ---------------------------------------------------------------
 * LOGO WALL — zone clients (logos ou cases réservées)
 * --------------------------------------------------------------- */
.logo-wall{
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 2px;
  background: var(--line);
  border: 1px solid var(--line);
}
.logo-box{
  aspect-ratio: 3/2;
  background: var(--blanc);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  cursor: pointer;
  transition: background 0.15s ease;
}
.logo-box:hover{ background: var(--beige); }
.logo-box{ text-decoration: none; }
.logo-box img{ width: auto; height: auto; max-width: 100%; max-height: 60%; object-fit: contain; }
.logo-box img.logo-svg{ width: 100%; height: 60%; }
.logo-box-static{ cursor: default; }
.logo-box-static:hover{ background: var(--blanc); }
.logo-box span{
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--ink-muted);
  text-align: center;
}
@media (max-width: 900px){ .logo-wall{ grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 600px){ .logo-wall{ grid-template-columns: repeat(2, 1fr); } }

.photo-placeholder{
  aspect-ratio: 16/9;
  border: 2px dashed var(--ink-muted);
  border-radius: 3px;
  background-color: var(--gris-clair);
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--ink-muted);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  margin: 8px 0 8px;
}
.photo-placeholder small{ display: block; opacity: 0.7; margin-top: 4px; }

.photo-gallery{
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 8px 0;
}
.photo-frame{
  overflow: hidden;
  border-radius: 3px;
}
.photo-frame img{ width: 100%; height: auto; display: block; }
@media (max-width: 700px){ .photo-gallery{ grid-template-columns: 1fr; } }


.offer-grid{
  list-style: none;
  margin: 0; padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.offer-card{
  background: rgba(251,245,232,0.05);
  border-top: 3px solid var(--accent, var(--jaune));
  padding: 28px 24px;
  transition: background 0.2s ease, transform 0.2s ease;
}
.offer-card:hover{ background: rgba(251,245,232,0.1); transform: translateY(-3px); }
.offer-num{
  display: block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent, var(--jaune));
  margin-bottom: 14px;
}
.offer-text{
  display: block;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.15rem;
  line-height: 1.3;
  color: var(--beige);
}
.offer-desc{
  display: block;
  margin-top: 10px;
  font-size: 0.9rem;
  color: rgba(251,245,232,0.65);
  line-height: 1.5;
}
.offer-grid.accent-anthracite .offer-card{ border-top-color: var(--jaune); }
.offer-grid.accent-anthracite .offer-num{ color: var(--jaune); }
@media (max-width: 900px){ .offer-grid{ grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px){ .offer-grid{ grid-template-columns: 1fr; } }

.cequonfait-list{
  list-style: none;
  margin: 0; padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
}
.cequonfait-list li{
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  font-weight: 500;
}
.cequonfait-list li:nth-child(odd){ padding-right: 24px; }

.process-grid{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.faq-list{ max-width: none; }
.faq-item{
  border-top: 1px solid var(--line);
  padding: 20px 0;
}
.faq-item:last-child{ border-bottom: 1px solid var(--line); }
.faq-item summary{
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1.02rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}
.faq-item summary::-webkit-details-marker{ display: none; }
.faq-item summary::after{
  content: '+';
  font-family: var(--font-head);
  font-size: 1.3rem;
  color: var(--ink-muted);
  flex-shrink: 0;
}
.faq-item[open] summary::after{ content: '−'; }
.faq-answer{ padding-top: 14px; max-width: 68ch; }
.faq-answer p{ color: var(--ink-muted); margin: 0; }

/* ---------------------------------------------------------------
 * BREADCRUMBS
 * --------------------------------------------------------------- */
.breadcrumbs{ padding: 20px 0 0; }
.breadcrumbs ol{
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0; padding: 0;
  font-size: 0.85rem;
  color: var(--ink-muted);
}
.breadcrumbs li:not(:last-child)::after{ content: '/'; margin-left: 8px; }
.breadcrumbs a{ text-decoration: none; color: var(--ink-muted); }
.breadcrumbs a:hover{ color: var(--anthracite); }

/* ---------------------------------------------------------------
 * REALISATIONS INDEX / FILTERS
 * --------------------------------------------------------------- */
.filters{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 48px;
}
.filter-btn{
  font-family: var(--font-mono);
  font-size: 0.82rem;
  padding: 9px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--blanc);
  color: var(--ink);
  text-decoration: none;
  cursor: pointer;
}
.filter-btn.is-active, .filter-btn:hover{ background: var(--anthracite); color: var(--blanc); border-color: var(--anthracite); }

/* ---------------------------------------------------------------
 * PROJET / ARTICLE SINGLE
 * --------------------------------------------------------------- */
.project-hero{ padding: 40px 0 60px; }
.project-meta-row{
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  margin: 24px 0 36px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--ink-muted);
}
.project-meta-row strong{ color: var(--ink); display: block; font-family: var(--font-body); font-size: 0.78rem; margin-bottom: 4px; }
.project-body{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 48px;
  padding-bottom: 40px;
}
.project-block h3{ font-size: 1.1rem; margin-bottom: 12px; }
.project-block p{ color: var(--ink-muted); }

/* ---------------------------------------------------------------
 * BLOG VISUAL — bloc typographique de couverture par article
 * (pas de photo tant que les vrais visuels ne sont pas fournis)
 * --------------------------------------------------------------- */
.blog-visual{
  aspect-ratio: 16/9;
  display: flex;
  align-items: flex-end;
  padding: 18px 20px;
  margin-bottom: 18px;
  border-radius: 2px;
}
.blog-visual span{
  font-family: var(--font-head);
  font-weight: 800;
  text-transform: uppercase;
  font-size: 1.15rem;
  line-height: 1.15;
}
.blog-visual.c0{ background: var(--jaune); color: var(--anthracite); }
.blog-visual.c1{ background: var(--corail); color: var(--anthracite); }
.blog-visual.c2{ background: var(--bleu-vert); color: var(--blanc); }
.blog-visual.c3{ background: var(--anthracite); color: var(--beige); }

.blog-list{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}
.blog-card{ text-decoration: none; color: var(--ink); display: block; }
.blog-card .cat{ font-family: var(--font-mono); font-size: 0.78rem; color: var(--bleu-vert); margin-bottom: 10px; display: block; }
.blog-card h3{ font-size: 1.15rem; margin-bottom: 10px; }
.blog-card p{ color: var(--ink-muted); font-size: 0.92rem; margin: 0; }

.article-body{ max-width: 68ch; }
.article-body p{ color: var(--ink); margin: 0 0 20px; }

/* ---------------------------------------------------------------
 * LEGAL PAGES
 * --------------------------------------------------------------- */
.legal-content{ max-width: 72ch; padding: 40px 0 100px; }
.legal-content h1{ font-size: clamp(1.8rem, 3vw, 2.4rem); margin-bottom: 32px; }
.legal-content h2{ font-size: 1.2rem; margin: 40px 0 14px; }
.legal-content p, .legal-content li{ color: var(--ink-muted); }

/* ---------------------------------------------------------------
 * FOOTER
 * --------------------------------------------------------------- */
.site-footer{
  background: var(--anthracite);
  color: var(--beige);
  border-top: none;
  padding-top: 64px;
}
.footer-grid{
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 40px;
  padding-bottom: 48px;
}
.site-footer .logo{ color: var(--beige); }
.footer-brand p{ color: rgba(251,245,232,0.65); margin-top: 12px; font-size: 0.92rem; }
.footer-col-title{ font-family: var(--font-mono); font-size: 0.78rem; color: var(--jaune); margin: 0 0 16px; }
.footer-col ul{ list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.footer-col a{ text-decoration: none; font-size: 0.92rem; color: rgba(251,245,232,0.85); }
.footer-col a:hover{ color: var(--corail); }
.footer-bottom{
  border-top: 1px solid rgba(251,245,232,0.15);
  padding: 22px 0;
  font-size: 0.82rem;
  color: rgba(251,245,232,0.55);
}

/* ---------------------------------------------------------------
 * TRUST — bandeau de confiance qui défile (esprit biux, honnête :
 * chips texte tant que les vrais logos clients ne sont pas fournis)
 * --------------------------------------------------------------- */
.trust{ padding: 44px 0; margin-top: 56px; border-top: 1px solid var(--line); overflow: hidden; }
.trust-label{ font-family: var(--font-mono); font-size: 0.76rem; color: var(--ink-muted); text-align: center; margin: 0 0 26px; }
.trust-track{ display: flex; width: max-content; gap: 52px; animation: trustscroll 26s linear infinite; align-items: center; }
.trust-track span{ font-family: var(--font-head); font-weight: 700; font-size: 1.1rem; color: #B9B6AC; white-space: nowrap; }
@keyframes trustscroll{ from{ transform: translateX(0); } to{ transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce){ .trust-track{ animation: none; flex-wrap: wrap; width: auto; } }

/* ---------------------------------------------------------------
 * REAL-GRID — grille réalisations, légende toujours visible
 * --------------------------------------------------------------- */
.real-grid{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2px;
  background: var(--line);
  border: 1px solid var(--line);
}
.real-card{
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  text-decoration: none;
  display: block;
  background: var(--anthracite);
}
.real-card img{ width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; opacity: 0.88; }
.real-card:hover img{ transform: scale(1.05); }
.real-card::after{ content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 45%, rgba(53,57,68,0.88) 100%); }
.real-caption{ position: absolute; left: 0; right: 0; bottom: 0; padding: 16px 18px; color: var(--blanc); z-index: 1; }
.real-caption .client{ font-family: var(--font-head); font-weight: 700; font-size: 0.98rem; display: block; }
.real-context{ display: block; font-size: 0.82rem; color: rgba(255,255,255,0.85); margin: 2px 0 4px; }
.real-caption .cat{ font-family: var(--font-mono); font-size: 0.76rem; color: rgba(255,255,255,0.75); }
@media (max-width: 900px){ .real-grid{ grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px){ .real-grid{ grid-template-columns: 1fr; } }

/* ---------------------------------------------------------------
 * SVC-LIST — expertises en liste texte sobre (pas de cartes à icônes)
 * --------------------------------------------------------------- */
.svc-list{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.svc-item{ background: var(--blanc); padding: 30px 28px; text-decoration: none; color: var(--ink); display: block; }
.svc-item h3{ font-size: 1.05rem; margin-bottom: 8px; }
.svc-item p{ font-size: 0.9rem; color: var(--ink-muted); margin: 0; }
@media (max-width: 900px){ .svc-list{ grid-template-columns: 1fr; } }

/* ---------------------------------------------------------------
 * ACCORDION — méthode en accordéon (esprit biux)
 * --------------------------------------------------------------- */
.acc{ border-top: 1px solid var(--line); }
.acc-item{ border-bottom: 1px solid var(--line); }
.acc-head{
  display: flex; align-items: center; gap: 24px; padding: 26px 0;
  cursor: pointer; width: 100%; background: none; border: none; text-align: left; font-family: inherit;
}
.acc-num{ font-family: var(--font-mono); color: var(--corail); font-size: 0.95rem; flex-shrink: 0; width: 32px; }
.acc-head h3{ font-size: 1.4rem; flex-grow: 1; font-family: var(--font-head); font-weight: 700; margin: 0; text-transform: uppercase; }
.acc-toggle{ font-family: var(--font-head); font-size: 1.3rem; color: var(--ink-muted); flex-shrink: 0; }
.acc-body{ max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.acc-item.is-open .acc-body{ max-height: 240px; }
.acc-body-inner{ padding: 0 0 28px 56px; max-width: 60ch; color: var(--ink-muted); }

.section-head-solo{
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.1rem, 2vw, 1.7rem);
  text-transform: uppercase;
  line-height: 1.15;
  margin: 0 0 24px;
  white-space: nowrap;
}

/* ---------------------------------------------------------------
 * METHOD LIST — étapes toujours visibles, gros numéros
 * --------------------------------------------------------------- */
.method-list{ border-top: 1px solid rgba(53,57,68,0.15); }
.method-list-dark{ border-top-color: rgba(251,245,232,0.2); }
.method-list-dark .method-row{ border-bottom-color: rgba(251,245,232,0.2); }
.method-list-dark .method-num{ color: var(--jaune); }
.method-list-dark h3{ color: var(--beige); }
.method-list-dark p{ color: rgba(251,245,232,0.75); }
.method-row{
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 24px;
  align-items: start;
  padding: 34px 0;
  border-bottom: 1px solid rgba(53,57,68,0.15);
}
.bg-jaune .method-num{ color: var(--beige); }
.bg-bleu-vert .method-num{ color: var(--blanc); opacity: 0.6; }
.method-row .method-num{
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(2.4rem, 4vw, 3.4rem);
  line-height: 1;
  color: var(--beige);
}
.method-row h3{ font-size: 1.35rem; margin-bottom: 10px; text-transform: uppercase; }
.method-row p{ margin: 0; font-size: 1rem; max-width: 60ch; opacity: 0.85; }
@media (max-width: 700px){ .method-row{ grid-template-columns: 1fr; gap: 8px; } }

/* ---------------------------------------------------------------
 * AGENCE — photo + texte
 * --------------------------------------------------------------- */
.agence-grid{ display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }

.approche-grid{ display: flex; gap: 56px; align-items: center; }
.approche-grid > *{ flex: 1; min-width: 0; }
.approche-grid.reverse{ flex-direction: row-reverse; }
.approche-photo{}
.approche-photo-full{ margin-bottom: 0; }
.approche-photo-full .photo-gallery{ display: grid; grid-template-columns: repeat(3, 1fr); }
.approche-photo-full .photo-placeholder{ max-width: 100%; }
@media (max-width: 700px){ .approche-photo-full .photo-gallery{ grid-template-columns: 1fr; } }
.approche-sub-title{ font-family: var(--font-head); font-weight: 700; text-transform: uppercase; font-size: 1.3rem; margin: 24px 0 10px; }
@media (max-width: 900px){
  .approche-grid, .approche-grid.reverse{ flex-direction: column; }
  .approche-photo{ position: static; }
}
.agence-photo{ aspect-ratio: 4/3; border-radius: 4px; background: var(--anthracite); overflow: hidden; }
.agence-photo img{ width: 100%; height: 100%; object-fit: cover; }
.agence-grid p{ color: inherit; max-width: 52ch; margin: 0 0 18px; }
@media (max-width: 900px){ .agence-grid{ grid-template-columns: 1fr; } }

/* ---------------------------------------------------------------
 * CTA-BAND — bandeau d'appel à l'action centré
 * --------------------------------------------------------------- */
.cta-band{ padding: 90px 0; text-align: center; }
.cta-band h2{ font-size: clamp(2rem, 3.6vw, 2.9rem); margin: 0 0 28px; max-width: 18ch; }

/* ---------------------------------------------------------------
 * CASE-STUDY GRID — grille asymétrique façon 148 : cartes riches,
 * tailles variées, légende avec tags d'expertise toujours visible
 * --------------------------------------------------------------- */
.cs-filters{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 40px;
}
.cs-filter-btn{
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 9px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--blanc);
  color: var(--ink);
  cursor: pointer;
}
.cs-filter-btn.is-active{ background: var(--anthracite); color: var(--blanc); border-color: var(--anthracite); }

.cs-rows{ display: flex; flex-direction: column; gap: 32px; }
.cs-row{ display: grid; gap: 28px; }
.cs-row-2{ grid-template-columns: repeat(2, 1fr); }
.cs-row-3{ grid-template-columns: repeat(3, 1fr); }
.cs-row-4{ grid-template-columns: repeat(4, 1fr); }

.cs-card{
  text-decoration: none;
  color: var(--ink);
  display: flex;
  flex-direction: column;
}
.cs-card.is-hidden{ display: none; }
.cs-card .video-frame{
  aspect-ratio: 16/9;
  border: 1px solid var(--line);
}
.cs-caption{
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-top: 16px;
  border-bottom: 3px solid var(--line);
  padding-bottom: 14px;
}
.cs-caption .title{ font-family: var(--font-head); font-weight: 700; font-size: 1.05rem; }
.cs-caption .real-context{ font-size: 0.85rem; color: var(--ink-muted); }
.cs-tags{ display: flex; flex-wrap: wrap; gap: 8px; margin-top: 4px; }
.cs-tags span{ font-family: var(--font-mono); font-size: 0.75rem; padding: 4px 10px; border: 1px solid var(--line); border-radius: 999px; color: var(--ink-muted); white-space: nowrap; }

/* Vue filtrée : on aplatit les rangées et on repasse en grille uniforme */
.cs-rows.is-filtered{ display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.cs-rows.is-filtered .cs-row{ display: contents; }

@media (max-width: 900px){
  .cs-row-2, .cs-row-3, .cs-row-4{ grid-template-columns: 1fr; }
  .cs-rows.is-filtered{ grid-template-columns: 1fr; }
}

/* ---------------------------------------------------------------
 * EXPERTISE BLOCKS — blocs affirmés, pas une liste fine
 * --------------------------------------------------------------- */
.expertise-blocks{
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 2px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.expertise-block{ grid-column: span 2; }
.expertise-block{
  padding: 44px 40px;
  color: var(--ink);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.expertise-block h3{ font-size: clamp(1.05rem, 1.7vw, 1.5rem); margin-bottom: 16px; text-transform: uppercase; white-space: nowrap; }
.expertise-block p{ font-size: 1.02rem; max-width: 46ch; margin: 0 0 24px; color: currentColor; opacity: 0.72; }
.expertise-block .btn{ border-color: currentColor; color: currentColor; background: transparent; margin-top: auto; }
.expertise-block:nth-child(5n+1){ background: var(--jaune); color: var(--anthracite); }
.expertise-block:nth-child(5n+2){ background: var(--corail); color: var(--anthracite); }
.expertise-block:nth-child(5n+3){ background: var(--bleu-vert); color: var(--blanc); }
.expertise-block:nth-child(5n+4){ background: var(--anthracite); color: var(--beige); }
.expertise-block:nth-child(5n+5){ background: var(--blanc); color: var(--anthracite); }
.expertise-block:nth-child(5n+5) .btn{ border-color: var(--anthracite); }
.expertise-block .btn:hover{ background: var(--blanc) !important; color: var(--anthracite) !important; border-color: var(--blanc) !important; }
@media (max-width: 900px){ .expertise-blocks{ grid-template-columns: 1fr; } .expertise-block{ grid-column: span 1; } }

/* ===================================================================
   RESPONSIVE — 1728 / 1366 / 1024 / 768 / 390
   =================================================================== */

/* Laptop */
@media (max-width: 1366px){
  :root{ --maxw: 1140px; --header-h: 80px; }
  .expertise-grid{ grid-template-columns: repeat(3, 1fr); }
  .expertise-card:nth-child(4), .expertise-card:nth-child(5){ border-top-width: 3px; }
}

/* Tablette paysage / petit laptop */
@media (max-width: 1024px){
  .wrap{ padding: 0 28px; }
  .hero-grid, .page-hero-grid{ grid-template-columns: 1fr; gap: 36px; }
  .hero-text, .page-hero-grid > div:first-child{ order: 1; }
  .hero-video, .page-hero-grid > div:last-child{ order: 0; }
  .method-grid{ grid-template-columns: repeat(2, 1fr); }
  .process-grid{ grid-template-columns: repeat(2, 1fr); }
  .grid-realisations{ grid-template-columns: repeat(2, 1fr); }
  .contact-grid{ grid-template-columns: 1fr; gap: 40px; }
  .footer-grid{ grid-template-columns: 1fr 1fr; }
  .project-body{ grid-template-columns: 1fr; }
}

/* Tablette portrait */
@media (max-width: 768px){
  .section-head p{ white-space: normal; }
  .section-head h2{ white-space: normal; max-width: none; }
  .section-head-solo{ white-space: normal; }
  .big-title .line{ white-space: normal; font-size: clamp(1.3rem, 4.5vw, 1.7rem); }
  .hero-top-text .lede{ white-space: normal; }
  :root{ --header-h: 72px; }
  .main-nav{ display: none; }
  .menu-btn{ display: flex; }
  .main-nav.is-open{
    display: block;
    position: fixed;
    top: var(--header-h); left: 0; right: 0; bottom: 0;
    background: var(--blanc);
    overflow-y: auto;
    padding: 8px 0 40px;
  }
  .main-nav.is-open .nav-list{
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0 28px;
  }
  .main-nav.is-open .nav-item{ border-bottom: 1px solid var(--line); }
  .main-nav.is-open .nav-link{ padding: 18px 0; font-size: 1.05rem; }
  .main-nav.is-open .nav-cta{ border: none; padding: 18px 0; }
  .main-nav.is-open .submenu{
    position: static;
    display: none;
    opacity: 1; visibility: visible; transform: none;
    box-shadow: none;
    border: none;
    background: var(--beige);
    min-width: 0;
    padding: 4px 0 12px;
  }
  .main-nav.is-open .nav-item.is-open .submenu{ display: block; }
  .main-nav.is-open .submenu li a{ padding: 12px 16px; }

  .expertise-grid{ grid-template-columns: 1fr; }
  .method-grid{ grid-template-columns: 1fr; }
  .process-grid{ grid-template-columns: 1fr; }
  .grid-realisations{ grid-template-columns: 1fr; }
  .cequonfait-list{ grid-template-columns: 1fr; }
  .cequonfait-list li:nth-child(odd){ padding-right: 0; }
  .blog-list{ grid-template-columns: 1fr; }
  .manifesto-points{ flex-direction: column; gap: 10px; }
  .manifesto p.lead{ white-space: normal; }
  .section{ padding: 40px 0; }
  .hero{ padding: 48px 0 64px; }
}

/* Mobile */
@media (max-width: 390px){
  .wrap{ padding: 0 20px; }
  .big-title .line{ font-size: clamp(1.1rem, 6vw, 1.5rem); white-space: normal; }
  .hero-top-text .lede{ white-space: normal; }
  .page-hero h1{ font-size: clamp(1.8rem, 8vw, 2.2rem); }
  .contact-title{ font-size: clamp(1.6rem, 8vw, 2.2rem); }
  .section-head{ margin-bottom: 36px; }
  .section-head p{ white-space: normal; }
  .hero .eyebrow{ font-size: 1.1rem; white-space: normal; }
  .hero-actions{ flex-wrap: wrap; }
  .hero-actions .btn{ padding: 13px 18px; font-size: 0.9rem; }
}