/* =====================================================
   Site géotechnique & géologie — Feuille de style
   Palette inspirée du logo : gris bleuté, sobre, pro
   ===================================================== */

:root {
  --color-bg: #ffffff;
  --color-surface: #f5f7f9;
  --color-surface-alt: #eceff2;
  --color-border: #d6dde2;
  --color-text: #2b3138;
  --color-text-muted: #5b6a76;
  --color-primary: #4d6271;       /* gris bleuté du logo */
  --color-primary-dark: #36474f;
  --color-primary-light: #7a8d99;
  --color-accent: #b08d57;         /* ocre / sable, rappel terrain */

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-serif: "Georgia", "Times New Roman", serif;

  --radius: 4px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);

  --max-width: 1200px;
  --header-height: 84px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-primary-dark); text-decoration: underline; }

img { max-width: 100%; display: block; }

h1, h2, h3, h4 {
  font-family: var(--font-sans);
  color: var(--color-primary-dark);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 0.6em;
}

h1 { font-size: 2.2rem; line-height: 1.2; }
h2 { font-size: 1.6rem; margin-top: 2rem; }
h3 { font-size: 1.2rem; margin-top: 1.4rem; }

p { margin: 0 0 1em; }

/* ---------- Header ---------- */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  text-decoration: none;
  color: var(--color-primary-dark);
}

.brand img {
  height: 56px;
  width: auto;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-text strong {
  font-size: 1.35rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary-dark);
  font-weight: 700;
}

.brand-text span {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
}

.brand-text .external {
  font-size: 0.72rem;
  color: var(--color-primary);
  margin-top: 2px;
  letter-spacing: 0.02em;
}

/* ---------- Navigation ---------- */
.main-nav {
  display: flex;
  align-items: center;
}

.main-nav ul {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 0.4rem;
  align-items: center;
}

.main-nav a {
  display: block;
  padding: 0.55rem 0.9rem;
  font-size: 0.9rem;
  color: var(--color-text);
  border-radius: var(--radius);
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
}

.main-nav a:hover {
  background: var(--color-surface);
  color: var(--color-primary-dark);
}

.main-nav a.active {
  color: var(--color-primary-dark);
  background: var(--color-surface);
  font-weight: 600;
}

/* sous-menu déroulant */
.has-submenu { position: relative; }

.has-submenu > a::after {
  content: " ▾";
  font-size: 0.7em;
  color: var(--color-text-muted);
}

.main-nav .submenu {
  position: absolute;
  top: 100%;
  left: 0;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  min-width: 220px;
  padding: 0.4rem;
  flex-direction: column;
  gap: 0;
  display: none;
}

.main-nav .has-submenu:hover .submenu,
.main-nav .has-submenu:focus-within .submenu {
  display: flex;
}

.main-nav .submenu li { width: 100%; }
.main-nav .submenu a { width: 100%; }

/* burger mobile */
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.4rem 0.7rem;
  cursor: pointer;
  font-size: 1.2rem;
  color: var(--color-primary-dark);
}

@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .main-nav {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    padding: 1rem;
  }
  .main-nav.open { display: flex; }
  .main-nav ul {
    flex-direction: column;
    width: 100%;
    align-items: stretch;
    gap: 0;
  }
  .main-nav .submenu {
    position: static;
    box-shadow: none;
    border: none;
    padding-left: 1rem;
    display: flex;
  }
  .has-submenu > a::after { content: ""; }
}

/* ---------- Layout ---------- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
}

.container-narrow {
  max-width: 820px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
}

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  color: #fff;
  padding: 4.5rem 1.5rem;
  text-align: center;
}

.hero-inner {
  max-width: 820px;
  margin: 0 auto;
}

.hero h1 {
  color: #fff;
  font-size: 2.6rem;
  margin-bottom: 1rem;
}

.hero p.lead {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.92);
  margin-bottom: 1.8rem;
}

.btn {
  display: inline-block;
  padding: 0.7rem 1.5rem;
  background: var(--color-accent);
  color: #fff;
  border-radius: var(--radius);
  font-weight: 600;
  text-decoration: none;
  font-size: 0.95rem;
  transition: background 0.15s;
}

.btn:hover {
  background: #97743f;
  color: #fff;
  text-decoration: none;
}

.btn-outline {
  background: transparent;
  border: 1px solid #fff;
  color: #fff;
}

.btn-outline:hover {
  background: rgba(255,255,255,0.1);
}

/* ---------- Page header ---------- */
.page-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 2.5rem 1.5rem 2rem;
}

.page-header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.breadcrumb {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 0.6rem;
}

.breadcrumb a { color: var(--color-text-muted); }

.page-header h1 {
  margin: 0;
  font-size: 2rem;
}

.page-header .subtitle {
  margin: 0.6rem 0 0;
  color: var(--color-text-muted);
  font-size: 1.05rem;
}

/* ---------- Cards / grilles ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.2rem;
  margin: 2rem 0;
}

.card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary-light);
}

.card a {
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  height: 100%;
  align-items: center;
  text-align: center;
  padding: 1.6rem 1.2rem;
}

/* Card avec icône SVG */
.card-icon {
  width: 64px;
  height: 64px;
  margin-bottom: 1rem;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-icon svg {
  width: 100%;
  height: 100%;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.5;
}

.card h3 {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  letter-spacing: 0.01em;
}

/* Variante : carte avec miniature (photo ou schéma SVG) en haut + titre dessous */
.card.card-with-thumb a {
  padding: 0;
  align-items: stretch;
  text-align: center;
}

.card-thumb {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: var(--color-surface-alt);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.card-thumb svg {
  width: 80%;
  height: 80%;
  color: var(--color-primary-dark);
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
}

.card-with-thumb .card-title {
  padding: 0.85rem 0.9rem 0.95rem;
  border-top: 1px solid var(--color-border);
}

.card-with-thumb .card-title h3 {
  font-size: 0.95rem;
  margin: 0;
  font-weight: 700;
  color: var(--color-primary-dark);
}

/* Variante : carte avec photo illustrative en haut */
.card.card-with-image a {
  padding: 0;
}

.card-image {
  width: 100%;
  background: var(--color-surface-alt);
  aspect-ratio: 4 / 3;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: 0.85rem;
  overflow: hidden;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card-with-image .card-title {
  padding: 0.9rem 1rem 1rem;
  width: 100%;
  border-top: 1px solid var(--color-border);
}

.card-with-image .card-title h3 {
  font-size: 0.95rem;
}

/* ---------- Galerie roches ---------- */
.rock-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.2rem;
  margin: 2rem 0;
}

.rock-tile {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
  text-decoration: none;
  color: inherit;
}

.rock-tile:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  text-decoration: none;
}

.rock-tile-img {
  aspect-ratio: 1 / 1;
  background: var(--color-surface-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.rock-tile-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.rock-tile-name {
  padding: 0.7rem 0.9rem;
  font-size: 0.95rem;
  font-weight: 500;
  text-align: center;
  border-top: 1px solid var(--color-border);
}

/* Vue détail — roche : photo gauche, description droite */
.rock-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  margin: 2rem 0;
  align-items: start;
}

.rock-detail-img {
  width: 100%;
  border-radius: var(--radius);
  background: var(--color-surface-alt);
  aspect-ratio: 1 / 1;
  overflow: hidden;
}

.rock-detail-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.rock-detail-info h1 {
  margin-top: 0;
}

.rock-facts dl {
  margin: 0 0 1.5rem;
  padding: 1rem 1.2rem;
  background: var(--color-surface);
  border-radius: var(--radius);
  border-left: 3px solid var(--color-primary);
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.5rem 1rem;
  font-size: 0.92rem;
}

.rock-facts dt {
  font-weight: 600;
  color: var(--color-primary-dark);
}

.rock-facts dd {
  margin: 0;
  color: var(--color-text);
}

@media (max-width: 800px) {
  .rock-detail { grid-template-columns: 1fr; gap: 1.5rem; }
}

/* ---------- Lames minces : grille ---------- */
.thinsection-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.2rem;
  margin: 2rem 0;
}

.thinsection-tile {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
  text-decoration: none;
  color: inherit;
  display: block;
}

.thinsection-tile:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  text-decoration: none;
}

.thinsection-tile-img {
  aspect-ratio: 3 / 4;
  background: var(--color-surface-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.78rem;
  color: var(--color-text-muted);
  overflow: hidden;
}

.thinsection-tile-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.thinsection-name {
  padding: 0.8rem 1rem;
  font-weight: 700;
  text-align: center;
  border-top: 1px solid var(--color-border);
  font-size: 0.95rem;
  color: var(--color-primary-dark);
}

/* Vue détail — lame mince : photo verticale (3/4) à gauche, infos à droite */
.lame-detail-img {
  aspect-ratio: auto !important;
  background: var(--color-surface-alt);
  padding: 0.6rem;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lame-detail-img img {
  width: 100% !important;
  height: auto !important;
  max-height: 70vh;
  object-fit: contain !important;
  border-radius: 2px;
}

.lame-detail-img .caption {
  margin: 0.6rem 0 0;
  font-size: 0.82rem;
  color: var(--color-text-muted);
  text-align: center;
  font-style: italic;
}

.mineral-list {
  list-style: none;
  padding: 0;
  margin: 0.6rem 0 1.5rem;
}

.mineral-list li {
  padding: 0.55rem 0.8rem;
  margin-bottom: 0.4rem;
  background: var(--color-surface);
  border-left: 3px solid var(--color-primary-light);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 0.93rem;
  line-height: 1.5;
}

.mineral-list li strong {
  color: var(--color-primary-dark);
}

/* ---------- Fiches forages / essais in situ ---------- */
.forage-detail-img {
  aspect-ratio: auto !important;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 380px;
  overflow: hidden;
}

/* Quand le conteneur héberge une photo, on supprime le padding et le fond
   pour que l'image remplisse complètement la zone (pas de blancs). */
.forage-detail-img.has-photo {
  padding: 0;
  background: var(--color-surface-alt);
  align-items: stretch;
  justify-content: stretch;
  min-height: 0;
}

.forage-detail-img.has-photo img.detail-photo {
  width: 100%;
  height: 100%;
  min-height: 380px;
  object-fit: cover;
  display: block;
}

/* Mode "photo très large" : la photo s'affiche dans son ratio naturel,
   pleine largeur, et le contenu texte passe en-dessous.
   Activé par la classe .stacked sur .rock-detail */
.rock-detail.stacked {
  display: block !important;
}

.rock-detail.stacked .forage-detail-img.wide {
  width: 100%;
  margin-bottom: 2rem;
  background: var(--color-surface);
  padding: 1rem;
  align-items: center;
  justify-content: center;
  min-height: 0;
}

.rock-detail.stacked .forage-detail-img.wide img.detail-photo {
  width: auto;
  max-width: 100%;
  height: auto;
  max-height: 600px;
  min-height: 0;
  object-fit: contain;
  margin: 0 auto;
}

.rock-detail.stacked .rock-detail-info {
  width: 100%;
}

.forage-svg {
  width: 100%;
  height: auto;
  max-height: 480px;
  color: var(--color-primary-dark);
}

.pros-cons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
  margin: 1.5rem 0;
}

.pros-cons h3 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
  margin-top: 0;
}

.pros, .cons {
  padding: 1rem 1.1rem;
  border-radius: var(--radius);
}

.pros {
  background: rgba(95, 130, 100, 0.08);
  border-left: 3px solid #5f8264;
}

.pros h3 {
  color: #4a6951;
}

.cons {
  background: rgba(176, 141, 87, 0.10);
  border-left: 3px solid var(--color-accent);
}

.cons h3 {
  color: #806137;
}

.pros ul, .cons ul {
  margin: 0;
  padding-left: 1.2rem;
}

.pros li, .cons li {
  font-size: 0.9rem;
  margin-bottom: 0.3rem;
  line-height: 1.4;
}

@media (max-width: 800px) {
  .pros-cons { grid-template-columns: 1fr; }
}

/* ---------- Mise en page spécifique fiche RISQUE ----------
   Layout vertical : facts → photo non recoupée → 2 colonnes (description / prévention) → extra
*/
.risque-media {
  margin: 2rem 0;
  text-align: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem;
}

.risque-media-photo {
  max-width: 100%;
  width: auto;
  height: auto;
  max-height: 600px;
  display: block;
  margin: 0 auto;
  border-radius: 2px;
}

.risque-media-svg {
  display: flex;
  align-items: center;
  justify-content: center;
}

.risque-media-svg svg {
  max-width: 100%;
  height: auto;
  max-height: 480px;
  color: var(--color-primary-dark);
}

.risque-twocol {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin: 2rem 0;
  align-items: start;
}

.risque-desc h2 {
  margin-top: 0;
  font-size: 1.3rem;
}

.risque-desc p {
  margin-top: 0;
}

.risque-prev {
  /* hérite du style .pros (vert) */
  padding: 1.2rem 1.4rem !important;
}

.risque-prev h2 {
  font-size: 1.3rem;
  color: #4a6951 !important;
  margin-bottom: 0.8rem;
}

.risque-prev ul {
  margin: 0;
  padding-left: 1.2rem;
}

.risque-prev li {
  margin-bottom: 0.5rem;
  line-height: 1.5;
}

.risque-extra {
  margin-top: 2rem;
}

.risque-extra h3 {
  margin-top: 1.5rem;
  font-size: 1.05rem;
}

@media (max-width: 800px) {
  .risque-twocol { grid-template-columns: 1fr; }
}

/* ---------- Figures illustratives dans les pages éditoriales ---------- */
.page-figure {
  margin: 1.8rem auto;
  max-width: 720px;
  text-align: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.2rem;
}

.page-figure img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
  border-radius: 2px;
}

.page-figure figcaption {
  margin-top: 0.8rem;
  font-size: 0.88rem;
  color: var(--color-text-muted);
  font-style: italic;
  line-height: 1.5;
  text-align: left;
}

/* ---------- Liens à connaître ---------- */
.liens-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin: 2rem 0;
}

.lien-card {
  display: block;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem 1.6rem;
  text-decoration: none;
  color: var(--color-text);
  transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s;
}

.lien-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary-light);
  text-decoration: none;
}

.lien-card h2 {
  margin: 0 0 0.3rem;
  font-size: 1.2rem;
  color: var(--color-primary-dark);
}

.lien-card .lien-url {
  margin: 0 0 0.9rem;
  color: var(--color-primary);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.lien-card p {
  margin: 0 0 0.7rem;
  font-size: 0.93rem;
  line-height: 1.5;
}

.lien-card p:last-child {
  margin-bottom: 0;
}

@media (max-width: 800px) {
  .liens-grid { grid-template-columns: 1fr; }
}

/* ---------- Timeline cosmique (formation de la Terre) ---------- */
.timeline {
  list-style: none;
  padding: 0;
  margin: 2rem 0;
  border-left: 2px solid var(--color-primary);
}

.timeline-month {
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.85rem;
  margin: 1.5rem 0 0.6rem -2px;
  padding: 0.4rem 1rem;
  background: var(--color-surface);
  border-left: 4px solid var(--color-primary);
  display: block;
}

.timeline-month:first-child {
  margin-top: 0;
}

.timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 1.2rem;
  padding: 0.6rem 0 0.6rem 1.2rem;
  margin-left: -1px;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 1rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 2px solid #fff;
  box-shadow: 0 0 0 1px var(--color-primary);
}

.timeline-date {
  font-weight: 600;
  color: var(--color-primary-dark);
  font-size: 0.92rem;
}

.timeline-event {
  color: var(--color-text);
  font-size: 0.95rem;
  line-height: 1.5;
}

@media (max-width: 700px) {
  .timeline-item {
    grid-template-columns: 1fr;
    gap: 0.2rem;
  }
  .timeline-date {
    font-size: 0.85rem;
  }
}

/* ---------- Sections de contenu ---------- */
.placeholder {
  border: 1px dashed var(--color-border);
  background: var(--color-surface);
  padding: 1.5rem;
  border-radius: var(--radius);
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin: 1.5rem 0;
}

.placeholder strong {
  color: var(--color-primary-dark);
  display: block;
  margin-bottom: 0.4rem;
}

.section-block {
  margin: 2.5rem 0;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin: 1.5rem 0;
}

@media (max-width: 800px) {
  .two-col { grid-template-columns: 1fr; }
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.95rem;
}

th, td {
  padding: 0.7rem 0.9rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

th {
  background: var(--color-surface);
  font-weight: 600;
  color: var(--color-primary-dark);
}

/* ---------- Contact ---------- */
.contact-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2rem;
  margin: 2rem 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

@media (max-width: 800px) {
  .contact-grid { grid-template-columns: 1fr; }
}

/* Bloc bio (David / Axis-In) */
.bio-block {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 2.5rem;
  margin: 2.5rem 0;
  align-items: start;
}

.bio-photo {
  position: relative;
  width: 280px;
  aspect-ratio: 1 / 1;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.bio-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.bio-photo-logo {
  background: #fff;
  padding: 2rem;
}

.bio-photo-logo img {
  object-fit: contain;
}

.bio-photo-placeholder {
  color: var(--color-text-muted);
  font-size: 0.85rem;
  font-style: italic;
  text-align: center;
  padding: 1rem;
}

.bio-text h2 {
  margin-top: 0;
}

.bio-text > em {
  color: var(--color-text-muted);
  display: block;
  margin-bottom: 1rem;
}

.bio-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin: 1.5rem 0 2rem;
}

.bio-gallery figure {
  margin: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
}

.bio-gallery img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
}

.bio-gallery figcaption {
  padding: 0.7rem 1rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-border);
}

/* Carrousel photo standalone (banner large) */
.photo-carousel {
  position: relative;
  width: 100%;
  max-width: 900px;
  aspect-ratio: 16 / 9;
  margin: 2rem auto 1.5rem;
  background: #000;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.photo-carousel .carousel-slide {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.6s ease-in-out;
}

.photo-carousel .carousel-slide.active {
  opacity: 1;
}

/* Carrousel photo bio */
.carousel {
  position: relative;
  background: #000;
  border-color: #333;
}

.carousel-track {
  width: 100%;
  height: 100%;
  position: relative;
}

.carousel-slide {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.6s ease-in-out;
}

.carousel-slide.active {
  opacity: 1;
}

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.45);
  color: #fff;
  border: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s;
  font-family: inherit;
  padding: 0;
  z-index: 2;
}

.carousel-btn:hover {
  background: rgba(0, 0, 0, 0.7);
}

.carousel-btn.prev { left: 8px; }
.carousel-btn.next { right: 8px; }

.carousel-dots {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 6px;
  z-index: 2;
}

.carousel-dots .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: background 0.15s;
}

.carousel-dots .dot.active {
  background: #fff;
}

@media (max-width: 700px) {
  .bio-block {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  .bio-photo {
    width: 100%;
    max-width: 320px;
    margin: 0 auto;
  }
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-primary-dark);
  color: rgba(255,255,255,0.8);
  padding: 2.5rem 1.5rem 1.5rem;
  margin-top: 4rem;
  font-size: 0.9rem;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2rem;
}

.site-footer h4 {
  color: #fff;
  font-size: 1rem;
  margin-bottom: 0.8rem;
}

.site-footer a {
  color: rgba(255,255,255,0.85);
}

.site-footer a:hover {
  color: #fff;
}

.site-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.site-footer li {
  margin-bottom: 0.4rem;
}

.footer-bottom {
  max-width: var(--max-width);
  margin: 2rem auto 0;
  padding-top: 1.2rem;
  border-top: 1px solid rgba(255,255,255,0.15);
  font-size: 0.8rem;
  color: rgba(255,255,255,0.65);
  text-align: center;
}

@media (max-width: 700px) {
  .footer-inner { grid-template-columns: 1fr; gap: 1.5rem; }
}

/* ============================================================
   Multilingue : sélecteur de langue, bandeau WIP, page de choix
   ============================================================ */

/* Drapeaux dans l'en-tête */
.lang-switch {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-shrink: 0;
}
.lang-switch a {
  display: inline-flex;
  align-items: center;
  line-height: 0;
  border-radius: 3px;
  border: 1px solid transparent;
  opacity: 0.5;
  transition: opacity 0.15s ease, transform 0.15s ease;
}
.lang-switch a:hover { opacity: 1; transform: translateY(-1px); }
.lang-switch a.active {
  opacity: 1;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary);
}
.lang-switch svg { display: block; border-radius: 2px; }

@media (max-width: 900px) {
  .lang-switch { margin-left: auto; order: 2; }
  .nav-toggle { order: 3; }
}

/* Bandeau « traduction en cours » */
.wip-banner {
  background: #fdf3e2;
  border: 1px solid #e6c98a;
  color: #7a5e30;
  padding: 0.6rem 1rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  margin-bottom: 1.6rem;
  text-align: center;
}

/* Page racine de choix de langue */
body.lang-picker {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  margin: 0;
  background: #f5f7f9;
}
.lang-pick-wrap { text-align: center; padding: 2rem; }
.lang-pick-logo { height: 88px; width: auto; }
.lang-pick-wrap h1 {
  letter-spacing: 0.12em;
  margin: 1rem 0 0.2rem;
  color: var(--color-primary-dark);
}
.lang-pick-sub { color: var(--color-text-muted); margin: 0 0 2.2rem; }
.lang-pick-grid { display: flex; gap: 1.2rem; justify-content: center; flex-wrap: wrap; }
.lang-pick-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.9rem;
  width: 150px;
  padding: 1.7rem 1rem;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--color-primary-dark);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.lang-pick-card:hover { transform: translateY(-3px); box-shadow: 0 6px 18px rgba(0,0,0,0.12); }
.lang-pick-flag svg { width: 66px; height: auto; border-radius: 3px; box-shadow: 0 1px 3px rgba(0,0,0,0.25); }
.lang-pick-label { font-size: 0.95rem; }