/* ==========================================================================
   Granulats d'Occitanie — feuille de style
   Palette : Ardoise / Pierre / Argile / Sable / Granit / Blanc calcaire
   Système signature : bandes stratigraphiques (coupe de carrière)
   ========================================================================== */

:root{
  --ardoise: #1E2023;
  --pierre: #E7E4DD;
  --pierre-2: #DAD5CB;
  --argile: #DD7521;
  --argile-dark: #B95E15;
  --sable: #C79A5D;
  --granit: #6B6862;
  --calcaire: #FAF8F4;
  --texte: #221F1B;

  --display: "Big Shoulders Display", sans-serif;
  --corps: "Barlow", sans-serif;

  --max: 1180px;
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  font-family: var(--corps);
  color: var(--texte);
  background: var(--calcaire);
  -webkit-font-smoothing: antialiased;
}
img{ max-width:100%; display:block; }
img[class*="logo"], .filiales-row img, .pastille-gdo img{ width:auto; object-fit:contain; }
a{ color: inherit; text-decoration: none; }
h1,h2,h3{
  font-family: var(--display);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  line-height: 0.95;
  margin: 0;
}
p{ line-height: 1.6; color: var(--granit); margin: 0 0 1em; }
.eyebrow{
  font-family: var(--corps);
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--argile);
}
.wrap{
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 28px;
}
:focus-visible{
  outline: 3px solid var(--argile);
  outline-offset: 3px;
}
@media (prefers-reduced-motion: reduce){
  *{ animation: none !important; transition: none !important; }
}

/* ---------- Header ---------- */
header.site{
  background: var(--ardoise);
  position: sticky;
  top:0;
  z-index: 50;
  border-bottom: 3px solid var(--argile);
}
header.site .wrap{
  display:flex;
  align-items:center;
  justify-content: space-between;
  height: 78px;
}
header.site .brand img{ height: 34px; }
nav.primary{ display:flex; gap: 6px; align-items:center; }
nav.primary a{
  font-family: var(--corps);
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--pierre);
  padding: 10px 16px;
  border-radius: 2px;
  transition: color .15s ease, background .15s ease;
}
nav.primary a:hover{ color: var(--calcaire); background: rgba(221,117,33,.18); }
nav.primary a.actif{ color: var(--ardoise); background: var(--argile); }
.nav-toggle{
  display:none;
  background:none;
  border: 1px solid var(--pierre);
  color: var(--pierre);
  width: 42px; height: 42px;
  font-size: 1.2rem;
  cursor:pointer;
}

@media (max-width: 780px){
  .nav-toggle{ display:block; }
  nav.primary{
    position:absolute;
    top: 78px; left:0; right:0;
    background: var(--ardoise);
    flex-direction: column;
    align-items: stretch;
    gap:0;
    max-height:0;
    overflow:hidden;
    border-bottom: 0 solid var(--argile);
  }
  nav.primary.ouvert{ max-height: 400px; border-bottom: 3px solid var(--argile); }
  nav.primary a{ padding: 16px 28px; }
}

/* ---------- Strata signature graphic ---------- */
.strates{
  width:100%;
  display:block;
  line-height:0;
}
.strates-hero{ height: auto; }

.strate-divider{
  height: 34px;
  width:100%;
  display:flex;
}
.strate-divider span{ flex:1; }
.strate-divider .b1{ background: var(--argile); }
.strate-divider .b2{ background: var(--sable); }
.strate-divider .b3{ background: var(--ardoise); }

/* ---------- Hero ---------- */
.hero{
  position: relative;
  background: var(--ardoise);
  color: var(--calcaire);
  overflow:hidden;
  padding: 92px 0 0;
}
.hero .wrap{ position: relative; z-index:2; padding-bottom: 64px; }
.hero h1{
  font-size: clamp(2.6rem, 6vw, 4.6rem);
  color: var(--calcaire);
  max-width: 14ch;
}
.hero h1 em{ font-style: normal; color: var(--argile); }
.hero p.lead{
  color: var(--pierre-2);
  font-size: 1.15rem;
  max-width: 46ch;
  margin-top: 22px;
}
.hero .eyebrow{ color: var(--sable); }

.hero-strates{
  position:absolute;
  left:0; right:0; bottom:0;
  z-index:1;
  opacity: 0.9;
}

/* ---------- Sections ---------- */
section{ padding: 76px 0; }
section.pierre-bg{ background: var(--pierre); }
.section-head{ max-width: 62ch; margin-bottom: 44px; }
.section-head h2{ font-size: clamp(1.9rem, 3.6vw, 2.7rem); margin-top: 8px; }

/* ---------- Filiale cards ---------- */
.grille-filiales{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
@media (max-width: 900px){ .grille-filiales{ grid-template-columns: 1fr; } }

.carte-filiale{
  background: var(--calcaire);
  border: 1px solid var(--pierre-2);
  display:flex;
  flex-direction: column;
  overflow:hidden;
  transition: transform .18s ease, box-shadow .18s ease;
}
.carte-filiale:hover{ transform: translateY(-4px); box-shadow: 0 14px 30px rgba(30,32,35,.12); }
.carte-filiale .bande{ height: 8px; }
.carte-filiale .bande.b-lgg{ background: var(--argile); }
.carte-filiale .bande.b-sgm{ background: var(--sable); }
.carte-filiale .bande.b-sdl{ background: var(--granit); }
.carte-filiale .contenu{ padding: 28px; flex:1; display:flex; flex-direction:column; }
.carte-filiale img.logo{ height: 46px; width:auto; align-self: flex-start; flex-shrink: 0; object-fit: contain; margin-bottom: 18px; }
.carte-filiale .lieu{
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--argile);
  margin-bottom: 10px;
  flex: 0 0 auto;
}
.carte-filiale p{ margin-bottom: 0; flex:1; }

/* ---------- Valeurs / colonnes ---------- */
.grille-valeurs{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-top: 10px;
}
@media (max-width: 900px){ .grille-valeurs{ grid-template-columns: 1fr; } }

.engagement{
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 40px;
  align-items: center;
  background: #fff;
  border: 1px solid var(--pierre-2);
  border-radius: 4px;
  padding: 36px;
}
.engagement .logo-rse{
  width: 100%;
  height: auto;
  border-radius: 4px;
}
.engagement .texte h3{
  font-size: 1.1rem;
  margin-bottom: 10px;
}
.engagement .texte p{ margin-bottom: 14px; }
.engagement .texte p:last-child{ margin-bottom: 0; }
@media (max-width: 700px){
  .engagement{ grid-template-columns: 1fr; padding: 26px; }
  .engagement .logo-rse{ max-width: 160px; margin: 0 auto; }
}
.valeur .num{
  font-family: var(--display);
  font-size: 2.6rem;
  color: var(--argile);
  display:block;
}
.valeur h3{ font-size: 1.05rem; margin: 6px 0 8px; }

/* ---------- Boutons / liens ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap: 10px;
  background: var(--argile);
  color: var(--calcaire);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 15px 26px;
  border: none;
  cursor:pointer;
  transition: background .15s ease;
}
.btn:hover{ background: var(--argile-dark); }
.btn.ghost{
  background: transparent;
  border: 2px solid var(--pierre-2);
  color: var(--texte);
}
.btn.ghost:hover{ border-color: var(--argile); color: var(--argile); }
.hero .btn.ghost{ border-color: rgba(231,228,221,.4); color: var(--calcaire); }

/* ---------- Localisation ---------- */
.carte-site{
  background: var(--calcaire);
  border: 1px solid var(--pierre-2);
  margin-bottom: 30px;
  display:grid;
  grid-template-columns: 1.1fr 1fr;
}
@media (max-width: 860px){ .carte-site{ grid-template-columns: 1fr; } }
.carte-site .infos{ padding: 34px; display:flex; flex-direction:column; }
.carte-site .infos .badge-logo{ height: 40px; width:auto; align-self: flex-start; flex-shrink: 0; object-fit: contain; margin-bottom: 20px; }
.carte-site .infos .adresse{ font-size: 1.05rem; font-weight: 600; margin-bottom: 6px; }
.carte-site .infos .meta{ color: var(--granit); font-size: 0.92rem; margin-bottom: 4px; }
.carte-site .infos .liens{ margin-top: auto; padding-top: 22px; display:flex; gap:14px; flex-wrap:wrap; }
.carte-map{ position:relative; min-height: 280px; background: var(--pierre); }
.carte-map iframe{ width:100%; height:100%; min-height:280px; border:0; display:block; }
.pastille-gdo{
  position:absolute;
  top: 14px; left: 14px;
  background: var(--calcaire);
  border: 2px solid var(--argile);
  padding: 6px 10px;
  display:flex;
  align-items:center;
  box-shadow: 0 4px 12px rgba(0,0,0,.18);
  z-index: 3;
}
.pastille-gdo img{ height: 20px; }

/* ---------- Contact ---------- */
.grille-contact{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items:start;
}
@media (max-width: 860px){ .grille-contact{ grid-template-columns: 1fr; } }
.bloc-mail{
  background: var(--ardoise);
  color: var(--calcaire);
  padding: 40px;
}
.bloc-mail .eyebrow{ color: var(--sable); }
.bloc-mail a.mail{
  font-family: var(--display);
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  color: var(--calcaire);
  word-break: break-word;
  display:inline-block;
  margin: 14px 0 20px;
  border-bottom: 3px solid var(--argile);
  padding-bottom: 6px;
}
.bloc-mail a.mail:hover{ color: var(--argile); }

.liste-filiales-contact{ display:flex; flex-direction:column; gap: 22px; }
.item-filiale-contact{
  border: 1px solid var(--pierre-2);
  padding: 20px 24px;
  display:flex;
  align-items:center;
  gap: 18px;
}
.item-filiale-contact img{ height: 30px; flex-shrink:0; }
.item-filiale-contact .d{ font-size: 0.9rem; color: var(--granit); }
.item-filiale-contact .d strong{ color: var(--texte); display:block; font-weight:700; }

form.contact-form{ display:flex; flex-direction:column; gap:16px; margin-top: 26px; }
form.contact-form label{ font-size:0.78rem; font-weight:700; letter-spacing:.06em; text-transform:uppercase; color: var(--granit); }
form.contact-form input, form.contact-form textarea{
  font-family: var(--corps);
  font-size: 1rem;
  padding: 13px 14px;
  border: 1px solid var(--pierre-2);
  background: var(--calcaire);
  color: var(--texte);
  width:100%;
}
form.contact-form input:focus, form.contact-form textarea:focus{ outline:2px solid var(--argile); border-color: var(--argile); }

/* ---------- Footer ---------- */
footer.site{
  background: var(--ardoise);
  color: var(--pierre-2);
  padding: 50px 0 30px;
}
footer.site .filiales-row{
  display:flex;
  gap: 34px;
  flex-wrap:wrap;
  align-items:center;
  padding-bottom: 34px;
  border-bottom: 1px solid rgba(231,228,221,.16);
  margin-bottom: 24px;
}
footer.site .filiales-row img{ height: 26px; opacity: .88; }
footer.site .bas{
  display:flex;
  justify-content: space-between;
  flex-wrap:wrap;
  gap: 14px;
  font-size: 0.85rem;
  color: var(--granit);
}
footer.site .bas a{ color: var(--pierre-2); }
footer.site .bas a:hover{ color: var(--argile); }