/* ============ EXTRA BETON — Charte graphique ============
   Bleu foncé    : #1B3A6B
   Orange foncé  : #E4700C (orange du logo)
   Blanc crème   : #F5F3EF
   Gris béton    : #6B6B6B
   (--rouge garde son nom mais porte l'orange de la charte)
========================================================= */

:root {
  --bleu: #1B3A6B;
  --bleu-fonce: #12294D;
  --rouge: #E4700C; /* orange du logo */
  --rouge-fonce: #B85908;
  --creme: #F5F3EF;
  --gris: #6B6B6B;
  --gris-clair: #E4E1DB;
  --blanc: #FFFFFF;
  --texte: #2B2B2B;
  --radius: 8px;
  --shadow: 0 4px 18px rgba(27, 58, 107, 0.12);
  --font: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--texte);
  background: var(--creme);
  line-height: 1.6;
}

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

.container {
  width: min(1140px, 92%);
  margin: 0 auto;
}

/* ---------- Header ---------- */
.topbar {
  background: var(--bleu-fonce);
  color: var(--creme);
  font-size: 0.85rem;
  padding: 6px 0;
}
.topbar .container {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}
.topbar a { color: var(--creme); text-decoration: none; }

header.site-header {
  background: var(--blanc);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}

/* Logo typographique inspiré du camion */
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.logo-img {
  height: 50px;
  width: auto;
}
.logo-badge {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--blanc);
  border: 3px solid var(--bleu);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--bleu);
  position: relative;
  overflow: hidden;
}
.logo-badge::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--rouge) 0%, var(--rouge) 28%, transparent 28%);
}
.logo-badge span { position: relative; }
.logo-text { line-height: 1.1; }
.logo-text .fr {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 1px;
}
.logo-text .fr .extra { color: var(--rouge); }
.logo-text .fr .beton { color: var(--bleu); }
.logo-text .ar {
  font-size: 0.95rem;
  color: var(--bleu);
  font-weight: 600;
  direction: rtl;
}

nav.main-nav ul {
  display: flex;
  gap: 28px;
  list-style: none;
}
nav.main-nav a {
  text-decoration: none;
  color: var(--bleu);
  font-weight: 600;
  padding: 6px 2px;
  border-bottom: 3px solid transparent;
  transition: color .2s, border-color .2s;
}
nav.main-nav a:hover,
nav.main-nav a.active {
  color: var(--rouge);
  border-bottom-color: var(--rouge);
}

.burger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
}
.burger span {
  width: 26px;
  height: 3px;
  background: var(--bleu);
  border-radius: 2px;
}

/* ---------- Boutons ---------- */
.btn {
  display: inline-block;
  padding: 13px 30px;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 700;
  transition: transform .15s, background .2s;
  border: none;
  cursor: pointer;
  font-size: 1rem;
}
.btn:hover { transform: translateY(-2px); }
.btn-rouge { background: var(--rouge); color: var(--blanc); }
.btn-rouge:hover { background: var(--rouge-fonce); }
.btn-bleu { background: var(--bleu); color: var(--blanc); }
.btn-bleu:hover { background: var(--bleu-fonce); }
.btn-outline {
  background: #142D54; /* bleu du B du logo */
  color: var(--blanc);
  border: 2px solid #142D54;
}
.btn-outline:hover { background: var(--bleu); border-color: var(--bleu); }

/* ---------- Hero (style plein écran, photo en fond) ---------- */
.hero {
  position: relative;
  /* Tient dans l'écran sans défilement : 100vh moins topbar (~34px), header (~76px) et bande (10px) */
  min-height: calc(100vh - 120px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  color: var(--blanc);
  background:
    linear-gradient(180deg, rgba(10,20,40,0.55) 0%, rgba(10,20,40,0.35) 45%, rgba(10,20,40,0.75) 100%),
    url('../images/hero-camion.jpg') center/cover no-repeat,
    linear-gradient(135deg, var(--bleu-fonce), var(--bleu) 60%, var(--gris));
}
/* Contenu du hero légèrement décalé vers la gauche (nudge de ~110px sur grand écran) */
.hero > .container { margin-left: max(2%, calc((100% - 1140px) / 2 - 110px)); }
.hero-content { max-width: 680px; padding: 28px 0 0; }
.hero .surtitre {
  display: inline-block;
  border: 1.5px solid rgba(255,255,255,0.55);
  background: rgba(10,20,40,0.35);
  padding: 6px 18px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  margin-bottom: 14px;
  backdrop-filter: blur(2px);
}
.hero h1 {
  font-size: clamp(1.8rem, 4.2vh + 1vw, 3rem);
  line-height: 1.1;
  margin-bottom: 12px;
  text-shadow: 0 2px 12px rgba(0,0,0,0.35);
}
.hero h1 .accent { color: var(--rouge); font-style: italic; }
.hero p.lead {
  font-size: clamp(0.95rem, 1.6vh, 1.1rem);
  margin-bottom: 18px;
  color: var(--blanc);
  font-weight: 700;
  text-shadow: 0 1px 6px rgba(0,0,0,0.55);
  /* Largeur limitée (~3 lignes) pour laisser le logo du camion visible à droite */
  max-width: 480px;
}
.hero p.lead .extra { color: var(--rouge); }
.hero p.lead .beton { color: var(--rouge); }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-actions .btn { border-radius: 999px; padding: 12px 28px; }

/* Chiffres clés superposés en bas du hero */
.hero-stats {
  display: flex;
  gap: clamp(24px, 4vw, 48px);
  flex-wrap: wrap;
  padding: 22px 0 28px;
}
.hero-stats .stat { text-align: left; }
.hero-stats .nombre {
  font-size: clamp(1.6rem, 3.5vh, 2.6rem);
  font-weight: 800;
  line-height: 1;
  color: var(--blanc);
  text-shadow: 0 2px 10px rgba(0,0,0,0.45);
}
.hero-stats .nombre .plus { color: var(--rouge); }
.hero-stats .label {
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-size: 0.72rem;
  color: rgba(255,255,255,0.85);
  margin-top: 5px;
}

/* Bouton WhatsApp flottant */
.whatsapp-float {
  position: fixed;
  bottom: 26px;
  right: 26px;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: #25D366;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(0,0,0,0.3);
  z-index: 200;
  transition: transform .2s;
}
.whatsapp-float:hover { transform: scale(1.1); }
.whatsapp-float svg { width: 32px; height: 32px; fill: #fff; }

/* Bande signature bicolore (orange / bleu foncé) */
.bande {
  height: 10px;
  background: linear-gradient(90deg,
    var(--rouge) 0%, var(--rouge) 50%,
    var(--bleu) 50%, var(--bleu) 100%);
}

/* ---------- Sections ---------- */
section { padding: 72px 0; }
.section-title { text-align: center; margin-bottom: 48px; }
.section-title .kicker {
  color: var(--rouge);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 0.85rem;
}
.section-title h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.3rem);
  color: var(--bleu);
  margin-top: 6px;
}
.section-title p {
  max-width: 640px;
  margin: 12px auto 0;
  color: var(--gris);
}

/* ---------- Cartes ---------- */
.grid {
  display: grid;
  gap: 26px;
}
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

.card {
  background: var(--blanc);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 30px 26px;
  border-top: 4px solid var(--bleu);
  transition: transform .2s, box-shadow .2s;
}
.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 28px rgba(27,58,107,0.18);
}
.card.card-rouge { border-top-color: var(--rouge); }
.card .icone {
  width: 54px;
  height: 54px;
  border-radius: 12px;
  background: var(--creme);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 16px;
}
.card h3 { color: var(--bleu); margin-bottom: 10px; font-size: 1.15rem; }
.card p { color: var(--gris); font-size: 0.95rem; }

.card .classe {
  display: inline-block;
  background: var(--bleu);
  color: var(--blanc);
  font-weight: 800;
  padding: 4px 14px;
  border-radius: 4px;
  margin-bottom: 12px;
  font-size: 1.05rem;
}
.card ul.usages {
  margin-top: 12px;
  padding-left: 18px;
  color: var(--gris);
  font-size: 0.9rem;
}

/* ---------- Bandeau chiffres ---------- */
.stats {
  background: var(--bleu);
  color: var(--blanc);
  padding: 54px 0;
}
.stats .grid-4 { text-align: center; }
.stat .nombre {
  font-size: 2.6rem;
  font-weight: 800;
  color: var(--rouge);
}
.stat .label { color: rgba(255,255,255,0.85); }

/* ---------- Section alternée (image + texte) ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.split .visuel {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--gris) 0%, var(--gris-clair) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blanc);
  font-size: 3rem;
}
.split .visuel img { width: 100%; height: 100%; object-fit: cover; }
.split h2 { color: var(--bleu); font-size: 1.9rem; margin-bottom: 16px; }
.split p { color: var(--gris); margin-bottom: 14px; }
.split ul.checklist { list-style: none; margin: 18px 0 26px; }
.split ul.checklist li {
  padding-left: 30px;
  position: relative;
  margin-bottom: 10px;
}
.split ul.checklist li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--rouge);
  font-weight: 800;
}

/* ---------- CTA bandeau ---------- */
.cta-bandeau {
  background: linear-gradient(100deg, var(--rouge) 0%, var(--rouge-fonce) 100%);
  color: var(--blanc);
  text-align: center;
  padding: 60px 0;
}
.cta-bandeau h2 { font-size: 1.9rem; margin-bottom: 12px; }
.cta-bandeau p { margin-bottom: 26px; opacity: 0.92; }
.cta-bandeau .btn { background: var(--blanc); color: var(--rouge); }

/* ---------- Page header (pages internes) ---------- */
.page-head {
  background: linear-gradient(100deg, var(--bleu-fonce), var(--bleu));
  color: var(--blanc);
  padding: 64px 0;
  text-align: center;
}
.page-head h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); }
.page-head p { margin-top: 10px; opacity: 0.85; max-width: 620px; margin-inline: auto; }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 40px;
}
.contact-info .bloc {
  background: var(--blanc);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px 24px;
  margin-bottom: 18px;
  border-left: 4px solid var(--rouge);
}
.contact-info .bloc h3 { color: var(--bleu); margin-bottom: 6px; font-size: 1.05rem; }
.contact-info .bloc p, .contact-info .bloc a { color: var(--gris); text-decoration: none; }

form.contact-form {
  background: var(--blanc);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 34px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
form.contact-form label {
  display: block;
  font-weight: 600;
  color: var(--bleu);
  margin-bottom: 6px;
  font-size: 0.92rem;
}
form.contact-form input,
form.contact-form select,
form.contact-form textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--gris-clair);
  border-radius: 6px;
  font-family: inherit;
  font-size: 0.95rem;
  margin-bottom: 18px;
  background: var(--creme);
}
form.contact-form input:focus,
form.contact-form select:focus,
form.contact-form textarea:focus {
  outline: none;
  border-color: var(--bleu);
  background: var(--blanc);
}

/* ---------- Footer ---------- */
footer {
  background: var(--bleu-fonce);
  color: rgba(255,255,255,0.8);
  padding: 54px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 36px;
  padding-bottom: 40px;
}
footer h4 {
  color: var(--blanc);
  margin-bottom: 16px;
  font-size: 1.05rem;
}
footer ul { list-style: none; }
footer ul li { margin-bottom: 9px; }
footer a { color: rgba(255,255,255,0.8); text-decoration: none; }
footer a:hover { color: var(--rouge); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.15);
  padding: 18px 0;
  text-align: center;
  font-size: 0.85rem;
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  nav.main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--blanc);
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
    display: none;
  }
  nav.main-nav.open { display: block; }
  nav.main-nav ul {
    flex-direction: column;
    gap: 0;
    padding: 10px 0;
  }
  nav.main-nav a {
    display: block;
    padding: 13px 24px;
    border-bottom: none;
  }
  .burger { display: flex; }
  .split { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .form-row { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
  .footer-grid { grid-template-columns: 1fr; }
  .topbar .container { justify-content: center; }
}