/* ─── Variables ─── */
:root {
  --bg:        #F8F5F0;
  --bg-dark:   #EFEBE4;
  --text:      #2C2C2C;
  --text-light:#7A7065;
  --accent:    #C4A882;
  --white:     #FFFFFF;
  --font-serif: 'Cormorant Garamond', Georgia, serif;
  --font-sans:  'Inter', system-ui, sans-serif;
  --max-width:  1100px;
  --gap:        2rem;
}

/* ─── Reset ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 300;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }

/* ─── Typography ─── */
h1, h2, h3 {
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: 0.02em;
}
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); }
h3 { font-size: 1.3rem; }
p { max-width: 68ch; }
blockquote {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.2rem;
  color: var(--text-light);
  border-left: 2px solid var(--accent);
  padding-left: 1.5rem;
  margin: 2rem 0;
}

/* ─── Layout helpers ─── */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--gap);
}
.section { padding: 5rem var(--gap); max-width: var(--max-width); margin: 0 auto; }
.section--wide { padding: 5rem 0; }

/* ─── Header ─── */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(248, 245, 240, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid rgba(196, 168, 130, 0.2);
}
.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.2rem var(--gap);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.site-logo {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.site-nav { display: flex; gap: 2.5rem; }
.site-nav a {
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-light);
  transition: color 0.2s;
}
.site-nav a:hover,
.site-nav a.active { color: var(--text); }

/* ─── Hero ─── */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: flex-end;
  padding-bottom: 6rem;
  overflow: hidden;
}
.hero-image {
  position: absolute;
  inset: 0;
  background-color: #D6CFC4;
  background-size: 75%;
  background-position: center center;
  background-repeat: no-repeat;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(30,25,20,0.55) 0%, rgba(30,25,20,0.1) 60%, transparent 100%);
}
.hero-content {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--gap);
  color: var(--white);
}
.hero-content h1 {
  font-size: clamp(2.4rem, 5.5vw, 4rem);
  font-weight: 300;
  margin-bottom: 1rem;
}
.hero-content .subtitle {
  font-size: 0.9rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  opacity: 0.8;
  margin-bottom: 2.5rem;
}
.hero-ctas { display: flex; gap: 1.5rem; flex-wrap: wrap; }

/* ─── Buttons / CTAs ─── */
.btn {
  display: inline-block;
  padding: 0.75rem 2rem;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: 1px solid currentColor;
  transition: background 0.2s, color 0.2s;
  cursor: pointer;
}
.btn--light {
  color: var(--white);
  border-color: rgba(255,255,255,0.7);
}
.btn--light:hover { background: var(--white); color: var(--text); }
.btn--dark {
  color: var(--text);
  border-color: var(--accent);
}
.btn--dark:hover { background: var(--accent); color: var(--white); }

/* ─── Sections texte/image alternées ─── */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  padding: 5rem var(--gap);
  max-width: var(--max-width);
  margin: 0 auto;
}
.split--reverse { direction: rtl; }
.split--reverse > * { direction: ltr; }
.split-text h2 { margin-bottom: 1.5rem; }
.split-text p { color: var(--text-light); margin-bottom: 1rem; }
.split-image img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }

/* ─── Grille réalisations ─── */
.grid-realisations {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2px;
}
.realisation-card { position: relative; overflow: hidden; aspect-ratio: 4/3; cursor: pointer; }
.realisation-card img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.realisation-card:hover img { transform: scale(1.04); }
.realisation-card-overlay {
  position: absolute;
  inset: 0;
  background: rgba(30,25,20,0.0);
  transition: background 0.3s;
  display: flex;
  align-items: flex-end;
  padding: 1.5rem;
}
.realisation-card:hover .realisation-card-overlay { background: rgba(30,25,20,0.45); }
.realisation-card-title {
  color: var(--white);
  font-family: var(--font-serif);
  font-size: 1.1rem;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.3s, transform 0.3s;
}
.realisation-card:hover .realisation-card-title { opacity: 1; transform: translateY(0); }

/* ─── Services ─── */
.services {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 3rem;
  padding: 4rem var(--gap);
  max-width: var(--max-width);
  margin: 0 auto;
}
.service h3 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--accent);
}
.service p { font-size: 0.9rem; color: var(--text-light); }

/* ─── Section intro centrée ─── */
.intro {
  text-align: center;
  padding: 6rem var(--gap) 3rem;
  max-width: 700px;
  margin: 0 auto;
}
.intro h2 { margin-bottom: 1.5rem; }
.intro p { color: var(--text-light); margin: 0 auto 1rem; }

/* ─── Contact ─── */
.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  padding: 5rem var(--gap);
  max-width: var(--max-width);
  margin: 0 auto;
}
.contact-info h2 { margin-bottom: 2rem; }
.contact-info p { color: var(--text-light); margin-bottom: 0.5rem; }
.contact-info a { color: var(--text); border-bottom: 1px solid var(--accent); padding-bottom: 1px; }
form { display: flex; flex-direction: column; gap: 1.2rem; }
input, textarea {
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(44,44,44,0.25);
  padding: 0.6rem 0;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 300;
  color: var(--text);
  transition: border-color 0.2s;
  outline: none;
}
input:focus, textarea:focus { border-bottom-color: var(--accent); }
textarea { resize: vertical; min-height: 120px; }
::placeholder { color: var(--text-light); }

/* ─── Footer ─── */
.site-footer {
  background: var(--bg-dark);
  border-top: 1px solid rgba(196,168,130,0.2);
  padding: 3rem var(--gap);
  text-align: center;
}
.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.footer-name {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin: 0 auto 0.5rem;
}
.footer-subtitle { font-size: 0.85rem; color: var(--text-light); margin: 0 auto 1.5rem; }
.footer-contact { font-size: 0.85rem; margin: 0 auto 1.5rem; }
.footer-contact a { color: var(--text-light); border-bottom: 1px solid var(--accent); padding-bottom: 1px; margin: 0 0.5rem; }
.footer-legal { font-size: 0.75rem; color: var(--text-light); }
.footer-legal a { color: var(--text-light); }

/* ─── Dans la presse ─── */
.presse {
  background: var(--white);
  padding: 5rem var(--gap);
  margin-top: 4rem;
  border-top: 1px solid rgba(196,168,130,0.3);
  border-bottom: 1px solid rgba(196,168,130,0.3);
}
.presse-label {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 400;
  color: var(--text);
  margin-bottom: 3rem;
  text-align: center;
}
.presse-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 2px;
  max-width: var(--max-width);
  margin: 0 auto;
}
.presse-card {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  padding: 2rem 2.5rem;
  background: var(--bg);
  transition: background 0.25s;
  text-decoration: none;
}
.presse-card:hover { background: var(--bg-dark); }
.presse-source {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}
.presse-title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--text);
  line-height: 1.4;
}
.presse-date {
  font-size: 0.8rem;
  color: var(--text-light);
}
.presse-link {
  font-size: 0.8rem;
  color: var(--text-light);
  margin-top: auto;
  padding-top: 1rem;
  transition: color 0.2s;
}
.presse-card:hover .presse-link { color: var(--text); }

/* ─── Collections annuelles ─── */
.collections-annees {
  background: var(--bg-dark);
  padding: 5rem var(--gap);
  margin-top: 4rem;
}
.collections-annees h2 { margin-bottom: 0; }
.annees-list {
  display: flex;
  gap: 4rem;
  justify-content: center;
  flex-wrap: wrap;
}
.annee-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.2rem;
  text-decoration: none;
}
.annee-photo {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid rgba(196,168,130,0.4);
  transition: border-color 0.3s, transform 0.3s;
}
.annee-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.annee-photo--placeholder {
  background: var(--bg);
}
.annee-item:hover .annee-photo {
  border-color: var(--accent);
  transform: translateY(-4px);
}
.annee-item:hover .annee-photo img { transform: scale(1.06); }
.annee-label {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--text);
  letter-spacing: 0.05em;
}

/* ─── Pages chantiers ─── */
.annee-banner {
  position: relative;
  height: 40vh;
  min-height: 280px;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  display: flex;
  align-items: flex-end;
}
.annee-banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(44,44,44,0.25) 0%, rgba(44,44,44,0.65) 100%);
}
.annee-banner-content {
  position: relative;
  z-index: 1;
  padding: 3rem var(--gap);
  color: var(--white);
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
}
.annee-banner-content h1 { color: var(--white); margin-bottom: 0.25rem; }
.annee-banner-year {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: rgba(255,255,255,0.75);
  letter-spacing: 0.08em;
}
.annee-intro {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2.5rem var(--gap) 0;
}
.annee-intro p { color: var(--text-light); max-width: 64ch; }
.chantiers {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 3rem var(--gap);
  display: flex;
  flex-direction: column;
  gap: 0;
}
.chantier {
  padding: 3rem 0;
  border-bottom: 1px solid var(--bg-dark);
}
.chantier:last-child { border-bottom: none; }
.chantier-meta {
  display: flex;
  gap: 1rem;
  margin-bottom: 0.75rem;
  align-items: center;
}
.chantier-matiere {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}
.chantier-annee {
  font-size: 0.72rem;
  color: var(--text-light);
}
.chantier h3 {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  margin-bottom: 0.4rem;
}
.chantier-lieu {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: 1.5rem;
  font-style: italic;
  max-width: none;
}
/* 2 images côte à côte, texte plein largeur en dessous — structure Wix */
.chantier-images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.chantier-img-slot {
  aspect-ratio: 399 / 286;
  background: var(--bg-dark);
  border: 1px dashed rgba(196,168,130,0.35);
  overflow: hidden;
}
.chantier-img-slot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.chantier-description p { color: var(--text-light); font-size: 0.95rem; margin-bottom: 0.5rem; max-width: 72ch; }
.chantier-mandataire { font-size: 0.82rem !important; color: var(--text-light) !important; }
.chantier-presse { font-size: 0.82rem !important; color: var(--accent) !important; margin-top: 0.5rem !important; }

/* ─── Filtres matériaux ─── */
.materiaux-filtres {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  padding: 2rem var(--gap) 3rem;
}
.materiau-btn {
  background: transparent;
  border: 1px solid rgba(196,168,130,0.5);
  color: var(--text-light);
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.5rem 1.5rem;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.materiau-btn:hover { border-color: var(--accent); color: var(--text); }
.materiau-btn.active { background: var(--accent); border-color: var(--accent); color: var(--white); }
.realisation-card.hidden { display: none; }

/* ─── Contact solo (sans formulaire) ─── */
.contact-solo {
  padding: 5rem var(--gap);
  max-width: 560px;
  margin: 0 auto;
}
.contact-solo h2 { margin-bottom: 0; }
.contact-solo p { color: var(--text-light); }
.contact-coords { margin-top: 2rem; }
.contact-coords p { margin-bottom: 0; }
.contact-coords a { color: var(--text); border-bottom: 1px solid var(--accent); padding-bottom: 1px; }

/* ─── Back link ─── */
.back-link {
  display: inline-block;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-light);
  margin-bottom: 2rem;
  transition: color 0.2s;
}
.back-link:hover { color: var(--text); }

/* ─── Animations fade-in ─── */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── Pour qui ─── */
.pour-qui {
  background: var(--bg-dark);
  padding: 5rem var(--gap);
  margin-top: 3rem;
}
.pour-qui h2 { margin-bottom: 2.5rem; }
.pour-qui-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}
.pour-qui-item h3 { margin-bottom: 1rem; padding-bottom: 0.75rem; border-bottom: 1px solid var(--accent); }
.pour-qui-item p { color: var(--text-light); }

/* ─── Formation ─── */
.formation {
  padding: 5rem var(--gap);
  background: var(--bg-dark);
  margin-top: 3rem;
}
.formation h2 { margin-bottom: 2rem; }
.formation-list { display: flex; flex-direction: column; gap: 2rem; max-width: 680px; }
.formation-item { display: grid; grid-template-columns: 4rem 1fr; gap: 1.5rem; align-items: start; }
.formation-year {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--accent);
  padding-top: 0.1rem;
}
.formation-title { font-family: var(--font-serif); font-size: 1.05rem; margin-bottom: 0.25rem; }
.formation-detail { font-size: 0.85rem; color: var(--text-light); }

/* ─── Header scrolled ─── */
.site-header.scrolled { box-shadow: 0 1px 20px rgba(44,44,44,0.06); }

/* ─── Burger menu ─── */
.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.burger span {
  display: block;
  width: 22px;
  height: 1px;
  background: var(--text);
  transition: transform 0.3s, opacity 0.3s;
}
.burger.active span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.burger.active span:nth-child(2) { opacity: 0; }
.burger.active span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ─── Responsive ─── */
@media (max-width: 768px) {
  .split, .contact-wrap { grid-template-columns: 1fr; gap: 2rem; }
  .split--reverse { direction: ltr; }
  .site-nav { gap: 1.5rem; }
  .hero-content h1 { font-size: 2.2rem; }
  .services { grid-template-columns: 1fr 1fr; gap: 2rem; }
}
@media (max-width: 768px) {
  .pour-qui-grid { grid-template-columns: 1fr; gap: 2rem; }
  .formation-item { grid-template-columns: 3rem 1fr; gap: 1rem; }
}
@media (max-width: 480px) {
  .burger { display: flex; }
  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: var(--bg);
    border-top: 1px solid rgba(196,168,130,0.2);
    flex-direction: column;
    padding: 1.5rem var(--gap);
    gap: 1.2rem;
  }
  .site-nav.open { display: flex; }
  .services { grid-template-columns: 1fr; }
}