/* ==========================================================================
   ÉTUDE Architecture — feuille de style principale
   Fond travertin R234 V229 B228 · texte noir · Brut Grotesque
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500&display=swap');

@font-face{
  font-family:'IB Hand';
  src:url('../fonts/IB_HAND-Regular.otf') format('opentype');
  font-weight:400;
  font-style:normal;
  font-display:swap;
}
@font-face{
  font-family:'Brut Grotesque';
  src:url('../fonts/Brut_Grotesque-Light.woff2') format('woff2');
  font-weight:300;
  font-style:normal;
  font-display:swap;
}
@font-face{
  font-family:'Brut Grotesque';
  src:url('../fonts/Brut_Grotesque-Italic.woff2') format('woff2');
  font-weight:300 400;
  font-style:italic;
  font-display:swap;
}
@font-face{
  font-family:'Brut Grotesque';
  src:url('../fonts/Brut_Grotesque-Bold.woff2') format('woff2');
  font-weight:700;
  font-style:normal;
  font-display:swap;
}
@font-face{
  font-family:'Brut Grotesque';
  src:url('../fonts/Brut_Grotesque-Bold_Italic.woff2') format('woff2');
  font-weight:700;
  font-style:italic;
  font-display:swap;
}
@font-face{
  font-family:'Brut Grotesque';
  src:url('../fonts/Brut_Grotesque-Black.woff2') format('woff2');
  font-weight:900;
  font-style:normal;
  font-display:swap;
}
@font-face{
  font-family:'Brut Grotesque';
  src:url('../fonts/Brut_Grotesque-Black_Italic.woff2') format('woff2');
  font-weight:900;
  font-style:italic;
  font-display:swap;
}

:root{
  --travertin: rgb(234,229,228);
  --ink: #000000;
  --ink-70: rgba(0,0,0,.72);
  --ink-45: rgba(0,0,0,.45);
  --line: rgba(0,0,0,.16);
  --line-strong: rgba(0,0,0,.35);
  --white: #ffffff;

  --font-main: 'Brut Grotesque', 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, Menlo, monospace;
  --font-hand: 'IB Hand', var(--font-main);

  --nav-size: 0.92rem;

  --gap: 1px; /* hairline gallery seam */
}

*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  background:var(--travertin);
  color:var(--ink);
  font-family:var(--font-main);
  font-weight:300;
  -webkit-font-smoothing:antialiased;
  min-height:100vh;
}
img{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;margin:0;padding:0;}
button{font-family:inherit;background:none;border:none;color:inherit;cursor:pointer;padding:0;}

:focus-visible{
  outline:2px solid var(--ink);
  outline-offset:3px;
}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important;}
}

.skip-link{
  position:absolute;left:-9999px;top:0;
}
.skip-link:focus{
  left:1rem;top:1rem;background:var(--white);padding:.5rem 1rem;z-index:999;
}

/* --------------------------------------------------------------------------
   PAGE D'ACCUEIL
   -------------------------------------------------------------------------- */
.accueil{
  position:relative;
  width:100%;
  height:100vh;
  height:100dvh;
  overflow:hidden;
  background:#000;
  cursor:pointer;
}
.accueil video,
.accueil .accueil-poster{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
}
.accueil-scrim{
  position:absolute;
  inset:0;
  background:rgba(0,0,0,0);
}
.accueil-logo{
  position:absolute;
  top:50%;left:50%;
  transform:translate(-50%,-50%);
  color:#fff;
  mix-blend-mode:normal;
  pointer-events:none;
  width:clamp(220px, 34vw, 420px);
}
.accueil-logo svg{
  display:block;
  width:100%;
  height:auto;
}

/* --------------------------------------------------------------------------
   BANDEAU / EN-TÊTE (page principale et pages internes)
   -------------------------------------------------------------------------- */
.site-header{
  position:relative;
  padding:1.4rem clamp(1rem, 3vw, 2.2rem) 1.1rem;
  border-bottom:1px solid var(--line);
}
.header-grid{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:1.5rem;
  flex-wrap:wrap;
}
.brand{
  order:2;
  flex:0 0 auto;
  margin:0 auto;
  text-align:center;
}
.brand a{
  display:block;
}
.brand svg{
  display:block;
  height:calc(var(--nav-size) * 3);
  width:auto;
}

.nav-primary,
.nav-secondary{
  order:1;
  display:flex;
  align-items:flex-end;
  gap:1.4rem;
  flex-wrap:wrap;
  flex:1 1 0;
  min-width:0;
}
.nav-primary{ justify-content:flex-start; }
.nav-secondary{ order:3; justify-content:flex-end; }

.nav-primary a,
.nav-secondary a,
.nav-secondary button{
  font-size:var(--nav-size);
  line-height:1.1;
  white-space:nowrap;
  padding-bottom:.1rem;
  border-bottom:1px solid transparent;
}
.nav-primary a[aria-current="page"],
.nav-secondary a[aria-current="page"],
.nav-secondary .is-active{
  border-bottom-color:var(--ink);
}
.nav-primary a:hover,
.nav-secondary a:hover{
  border-bottom-color:var(--line-strong);
}

.nav-toggle{
  display:none;
  order:1;
  font-size:1.2rem;
  letter-spacing:.15em;
  padding:.2rem .3rem;
}

.nav-drawer{
  display:none;
}
.nav-drawer.is-open{
  display:block;
  width:100%;
  order:4;
  padding-top:1rem;
}
.nav-drawer .nav-primary,
.nav-drawer .nav-secondary{
  flex-direction:column;
  align-items:flex-start;
  gap:.9rem;
  padding:.4rem 0;
}
.nav-drawer .nav-secondary{ align-items:flex-start; border-top:1px solid var(--line); margin-top:.6rem; padding-top:.9rem;}

/* Breakpoint : largeur ~ 2 projets → liens principaux/secondaires passent sous le logo */
@media (max-width: 900px){
  .header-grid{ flex-direction:column; align-items:stretch; }
  .brand{ order:1; margin:0 0 .9rem; text-align:left; }
  .nav-primary{ order:2; width:100%; justify-content:flex-start; }
  .nav-secondary{ order:3; width:100%; justify-content:flex-start; margin-top:.7rem; }
}

/* Breakpoint : largeur ~ 1 projet → menu "···" */
@media (max-width: 560px){
  .header-grid{ position:relative; }
  .brand{ order:1; }
  .nav-primary,
  .nav-secondary{ display:none; }
  .nav-toggle{ display:inline-flex; order:2; position:absolute; top:0; right:0; }
  .nav-drawer .nav-primary,
  .nav-drawer .nav-secondary{ display:flex; }
}

/* --------------------------------------------------------------------------
   GALERIE PRINCIPALE
   -------------------------------------------------------------------------- */
.gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0; /* Supprime l'écart entre les vignettes */
  background: transparent; /* Supprime la couleur de fond des lignes */
}
@media (max-width: 1100px){
  .gallery{ grid-template-columns:repeat(2, 1fr); }
}
@media (max-width: 640px){
  .gallery{ grid-template-columns:1fr; }
}

.gallery-item{
  background:var(--travertin);
  display:flex;
  flex-direction:column;
}
.gallery-item.is-hidden{ display:none; }

.gallery-thumb {
  position: relative;
  width: 100%;
  aspect-ratio: 1/1;
  overflow: hidden;
  background: var(--travertin); /* ← Fond transparent (couleur du site) */
  padding: 12.5%; /* cadre vide = 1/8 de la taille de l'image */
  box-sizing: border-box;
}
.gallery-thumb img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .5s ease;
}
.gallery-item a:hover .gallery-thumb img{ transform:scale(1.02); }

.gallery-caption{
  margin-top:-1.4em; /* remonte la légende dans la marge blanche du cadre */
  padding:calc(1.4em * 2) 12.5% .9rem; /* texte écarté de l'image de 2 lignes ; 12.5% = cadre de l'image */
  font-size:.82rem;
  line-height:1.4;
}
.gallery-caption .code{
  font-family:var(--font-mono);
  color:var(--ink-45);
  font-size:.75em; /* 75% de la taille du titre (1em ci-dessous) */
  display:block;
}
.gallery-caption .titre{
  display:block;
  font-weight:700;
  font-size:1em;
}
.gallery-caption .moa{ display:block; color:var(--ink-70); }

/* --------------------------------------------------------------------------
   CONTENU GÉNÉRAL / TYPO
   -------------------------------------------------------------------------- */
.container{
  max-width:1200px;
  margin:0 auto;
  padding:0 clamp(1rem, 3vw, 2.2rem);
}
.page-title{
  font-size:clamp(1.6rem, 3.2vw, 2.4rem);
  font-weight:700;
  margin:2.6rem 0 1.2rem;
  max-width:22ch;
}
.lede{
  font-size:1.05rem;
  line-height:1.6;
  max-width:62ch;
  color:var(--ink-70);
  margin:0 0 2.2rem;
}
.section-label{
  font-family:var(--font-mono);
  font-size:.72rem;
  color:var(--ink-45);
  margin:0 0 .6rem;
}
main{ padding-bottom:5rem; }

/* --------------------------------------------------------------------------
   FICHE PROJET
   -------------------------------------------------------------------------- */
.projet-hero{
  max-width:1200px;
  margin:0 auto;
  padding:2.2rem clamp(1rem,3vw,2.2rem) 0;
}
.projet-code{
  font-family:var(--font-mono);
  font-size:.78rem;
  color:var(--ink-45);
}
.projet-titre{
  font-size:clamp(.9rem, 2vw, 1.5rem); /* deux fois plus petit */
  font-weight:700;
  margin:.3rem 0 0;
  max-width:26ch;
}

/* Section 1 : photo principale (2/3, marge vide incluse) + tableau de données (1/3) */
.projet-intro{
  display:grid;
  grid-template-columns:2fr 1fr;
  align-items:start;
  max-width:1200px;
  margin:2rem auto 0;
}
@media (max-width: 900px){
  /* écran réduit : la photo puis le tableau, en défilement vertical */
  .projet-intro{ grid-template-columns:1fr; }
}

.projet-image-principale{
  padding:0 clamp(1.5rem,4vw,3.5rem) 2rem clamp(1rem,3vw,2.2rem);
}
.projet-image-principale img{ width:100%; cursor:zoom-in; }

.projet-donnees{
  padding:0 clamp(1rem,3vw,2.2rem) 2rem 0;
}
@media (max-width: 900px){
  .projet-donnees{ padding:0 clamp(1rem,3vw,2.2rem) 2rem; }
}

.donnees-table{
  width:100%;
  border-collapse:collapse;
  font-size:.92rem;
}
.donnees-table tr{ border-top:1px solid var(--line); }
.donnees-table tr:last-child{ border-bottom:1px solid var(--line); }
.donnees-table th,
.donnees-table td{
  text-align:left;
  padding:.85rem .4rem;
  vertical-align:top;
}
.donnees-table th{
  font-weight:400;
  color:var(--ink-45);
  width:34%;
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.02em;
}

.projet-texte{
  max-width:62ch;
  font-size:1rem;
  line-height:1.65;
  margin:2.6rem 0;
}
.projet-texte p{ margin:0 0 1.1rem; }

/* Sections 2 et 3 : galerie photos / galerie de documents géométraux —
   deux colonnes de largeur égale, hauteurs libres (non coordonnées) */
.planche-contact{
  column-count:2;
  column-gap:1.6rem;
  margin:2.2rem 0;
}
@media (max-width: 720px){
  .planche-contact{ column-count:1; }
}
.planche-contact figure{
  display:flex;
  align-items:stretch;
  gap:.8rem;
  margin:0 0 1.6rem;
  break-inside:avoid;
  -webkit-column-break-inside:avoid;
  page-break-inside:avoid;
  background:var(--white);
  padding:1.1rem 1.1rem 1.1rem;
  box-shadow:0 1px 2px rgba(0,0,0,.05);
}
.planche-contact figure img{
  flex:1 1 auto;
  width:100%;
  min-width:0;
  cursor:zoom-in;
}
.planche-contact figcaption{
  flex:0 0 auto;
  width:1.6rem;
  display:flex;
  flex-direction:row; /* = axe vertical une fois writing-mode appliqué */
  justify-content:space-between;
  align-items:center;
  gap:.8rem;
  padding:.1rem 0;
  font-size:.85
rem;
  font-family:var(--font-hand);
  white-space:nowrap;
  writing-mode:vertical-rl; /* empile le texte verticalement */
  transform:rotate(180deg); /* + 180° = rotation anti-horaire finale de 90° */
}
.planche-contact figcaption .legende{ color:var(--ink-70); }

.doc-list{
  margin:0 0 3rem;
}
.doc-list li{
  border-top:1px solid var(--line);
  padding:.9rem .2rem;
  display:flex;
  justify-content:space-between;
  gap:1rem;
  align-items:baseline;
  font-size:.92rem;
}
.doc-list li:last-child{ border-bottom:1px solid var(--line); }
.doc-list .doc-ref{ font-family:var(--font-mono); font-size:.75rem; color:var(--ink-45); }
.doc-list a{ border-bottom:1px solid var(--line-strong); }
.doc-list a:hover{ border-bottom-color:var(--ink); }

/* --------------------------------------------------------------------------
   PAGE LISTE DES PROJETS
   -------------------------------------------------------------------------- */
.liste-table{
  width:100%;
  border-collapse:collapse;
  margin-top:1.4rem;
}
.liste-table thead th{
  text-align:left;
  font-family:var(--font-mono);
  font-size:.72rem;
  color:var(--ink-45);
  font-weight:400;
  padding:.7rem .5rem;
  border-bottom:1px solid var(--line-strong);
  cursor:pointer;
  user-select:none;
  white-space:nowrap;
}
.liste-table thead th .arrow{ opacity:.5; margin-left:.3rem; font-size:.7em; }
.liste-table tbody tr{
  border-bottom:1px solid var(--line);
  transition:font-size .18s ease;
  cursor:pointer;
}
.liste-table tbody tr:hover{
  background:rgba(0,0,0,.03);
}
.liste-table td{
  padding:.85rem .5rem;
  font-size:.88rem;
  vertical-align:middle;
}
.liste-table tbody tr:hover td{ padding-top:1.3rem; padding-bottom:1.3rem; }
.liste-icone{
  width:46px;
}
.liste-icone img{
  width:44px;height:44px;object-fit:cover;
}

/* --------------------------------------------------------------------------
   PAGE AGENCE
   -------------------------------------------------------------------------- */
.agence-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr;
  gap:3rem;
  margin-top:1.5rem;
}
@media (max-width: 800px){
  .agence-grid{ grid-template-columns:1fr; }
}
.contact-block{ font-size:.95rem; line-height:1.7; }
.contact-block h2{
  font-size:.78rem;
  font-family:var(--font-mono);
  color:var(--ink-45);
  font-weight:400;
  margin:0 0 .6rem;
  text-transform:none;
}
.contact-block + .contact-block{ margin-top:2rem; }
.contact-block a{ border-bottom:1px solid var(--line-strong); }
.contact-block a:hover{ border-bottom-color:var(--ink); }
.map-frame{
  width:100%;
  aspect-ratio:4/3;
  border:1px solid var(--line);
  margin-top:1rem;
}

/* --------------------------------------------------------------------------
   PAGE AMO
   -------------------------------------------------------------------------- */
.amo-liste{
  margin-top:2.4rem;
  border-top:1px solid var(--line-strong);
}
.amo-liste .row{
  display:grid;
  grid-template-columns:9rem 1fr 12rem;
  gap:1rem;
  padding:1.1rem .2rem;
  border-bottom:1px solid var(--line);
  font-size:.9rem;
  align-items:baseline;
}
@media (max-width: 700px){
  .amo-liste .row{ grid-template-columns:1fr; gap:.2rem; }
}
.amo-liste .row .code{ font-family:var(--font-mono); color:var(--ink-45); font-size:.78rem; }
.amo-liste .row .moa{ color:var(--ink-70); }

/* --------------------------------------------------------------------------
   PAGE PUBLICATIONS
   -------------------------------------------------------------------------- */
.pub-groupe{ margin-bottom:3.2rem; }
.pub-groupe h2{
  font-family:var(--font-mono);
  font-size:.78rem;
  color:var(--ink-45);
  font-weight:400;
  margin:0 0 1rem;
  border-bottom:1px solid var(--line-strong);
  padding-bottom:.6rem;
}
.pub-item{
  display:flex;
  justify-content:space-between;
  gap:1.5rem;
  padding:1rem 0;
  border-bottom:1px solid var(--line);
  align-items:baseline;
  font-size:.92rem;
}
.pub-item .meta{ color:var(--ink-45); font-size:.82rem; }
.pub-item a{ border-bottom:1px solid var(--line-strong); }
.pub-item a:hover{ border-bottom-color:var(--ink); }

/* --------------------------------------------------------------------------
   VISIONNEUSE PLEIN ÉCRAN (pages projets)
   -------------------------------------------------------------------------- */
.lightbox{
  position:fixed;
  inset:0;
  background:#000;
  display:none;
  align-items:center;
  justify-content:center;
  z-index:1000;
  touch-action:pan-y;
}
.lightbox.is-open{ display:flex; }
.lightbox img{
  max-width:100vw;
  max-height:100vh;
  width:auto;
  height:auto;
  object-fit:contain;
  user-select:none;
  -webkit-user-drag:none;
}
.lightbox-close{
  position:absolute;
  top:1.4rem;
  right:1.6rem;
  width:2rem;
  height:2rem;
  display:flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  opacity:.6;
  font-size:1.3rem;
  line-height:1;
  font-weight:300;
  transition:opacity .4s ease;
}
.lightbox-close:hover{ opacity:1; }
.lightbox-close.is-hidden{ opacity:0; }

/* --------------------------------------------------------------------------
   PIED DE PAGE
   -------------------------------------------------------------------------- */
.site-footer{
  border-top:1px solid var(--line);
  padding:1.6rem clamp(1rem,3vw,2.2rem);
  display:flex;
  justify-content:space-between;
  gap:1rem;
  flex-wrap:wrap;
  font-size:.78rem;
  color:var(--ink-45);
}
.site-footer a{ color:var(--ink-70); border-bottom:1px solid transparent; }
.site-footer a:hover{ border-bottom-color:var(--ink-45); }