/* =========================================================
   GeoReCo — Geological Research Consulting SARL
   Feuille de styles principale
   ========================================================= */

:root {
  --color-dark: #0f2a3d;        /* bleu nuit GeoReCo */
  --color-dark-2: #163b53;
  --color-primary: #1b6fae;     /* bleu de la marque */
  --color-primary-light: #2c8bd1;
  --color-accent: #7ac143;      /* vert de la marque */
  --color-accent-light: #97d466;
  --color-bg: #f6f8f7;          /* fond clair neutre */
  --color-bg-alt: #eef2ee;
  --color-white: #ffffff;
  --color-text: #212b2e;
  --color-text-light: #5c6a6e;
  --color-border: #dde4e1;

  --font-heading: 'Georgia', 'Times New Roman', serif;
  --font-body: 'Segoe UI', Arial, Helvetica, sans-serif;

  --radius: 8px;
  --shadow-sm: 0 2px 8px rgba(28, 42, 47, 0.08);
  --shadow-md: 0 6px 24px rgba(28, 42, 47, 0.12);
  --transition: 0.25s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.65;
  overflow-x: hidden;
  text-align: center;
}

/* Le menu principal conserve son alignement d'origine */
.site-header {
  text-align: left;
}

/* Rangées de boutons/icônes : centrées avec le reste du contenu */
.hero-actions,
.social-row {
  justify-content: center;
}

/* Les champs de formulaire restent alignés à gauche pour rester lisibles/utilisables */
.form-group input,
.form-group select,
.form-group textarea {
  text-align: left;
}

/* La frise chronologique dépend d'un alignement gauche fixe (ligne + puces) */
.timeline,
.timeline-item {
  text-align: left;
}

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

a { color: inherit; text-decoration: none; }

ul { list-style: none; }

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--color-dark);
  line-height: 1.25;
}

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

section { padding: 80px 0; }

.section-tag {
  display: inline-block;
  color: var(--color-accent);
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-size: 0.8rem;
  margin-bottom: 10px;
}

.section-title {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  margin-bottom: 16px;
}

.section-desc {
  color: var(--color-text-light);
  max-width: 680px;
  font-size: 1.05rem;
}

.section-header {
  text-align: center;
  margin: 0 auto 50px;
  max-width: 720px;
}

.section-header .section-desc { margin: 0 auto; }

.bg-alt { background: var(--color-bg-alt); }
.bg-dark {
  background: linear-gradient(160deg, var(--color-dark) 0%, var(--color-dark-2) 100%);
  color: #dfe6e4;
}
.bg-dark h1, .bg-dark h2, .bg-dark h3 { color: var(--color-white); }
.bg-dark .section-desc { color: #b7c2bf; }

/* ---------- Boutons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform var(--transition), background var(--transition), color var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover { background: var(--color-accent-light); transform: translateY(-2px); }

.btn-outline {
  background: transparent;
  border-color: var(--color-white);
  color: var(--color-white);
}
.btn-outline:hover { background: var(--color-white); color: var(--color-dark); }

.btn-outline-dark {
  background: transparent;
  border-color: var(--color-dark);
  color: var(--color-dark);
}
.btn-outline-dark:hover { background: var(--color-dark); color: var(--color-white); }

.btn-block { width: 100%; justify-content: center; }

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(28, 42, 47, 0.95);
  backdrop-filter: blur(6px);
  transition: background var(--transition), box-shadow var(--transition);
}
.site-header.scrolled { box-shadow: var(--shadow-md); }

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  max-width: 1180px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--color-white);
}

.logo-mark {
  width: 42px; height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-accent), var(--color-primary));
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-white);
  flex-shrink: 0;
}

.logo-text { line-height: 1.1; }
.logo-text strong { display: block; font-size: 1.05rem; letter-spacing: 1px; }
.logo-text span { display: block; font-size: 0.68rem; color: #b7c2bf; letter-spacing: 0.5px; }

.logo img { width: 42px; height: 42px; object-fit: contain; flex-shrink: 0; }
.footer-logo img { width: 44px; height: 44px; object-fit: contain; }
.footer-logo { justify-content: center; text-align: left; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 34px;
}

.nav-links a {
  color: #dfe6e4;
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
  padding: 6px 0;
  transition: color var(--transition);
}
.nav-links a::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 2px;
  background: var(--color-accent);
  transition: width var(--transition);
}
.nav-links a:hover,
.nav-links a.active { color: var(--color-white); }
.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }

.nav-cta { display: flex; align-items: center; gap: 18px; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  z-index: 1100;
}
.nav-toggle span {
  width: 26px; height: 2px;
  background: var(--color-white);
  transition: transform var(--transition), opacity var(--transition);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  color: var(--color-white);
  background:
    linear-gradient(160deg, rgba(20, 30, 34, 0.88) 0%, rgba(28, 42, 47, 0.82) 55%, rgba(47, 107, 94, 0.75) 100%),
    repeating-linear-gradient(115deg, #3a4b45 0px, #3a4b45 2px, #445950 2px, #445950 40px);
  overflow: hidden;
}

.hero-slideshow {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-slideshow .slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1.8s ease;
}
.hero-slideshow .slide.active {
  opacity: 1;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(160deg, rgba(15,42,61,0.55) 0%, rgba(15,42,61,0.45) 45%, rgba(27,111,174,0.32) 100%);
}

.hero .container {
  position: relative;
  z-index: 2;
  padding-top: 60px;
  padding-bottom: 30px;
}

.hero-tag {
  display: inline-block;
  background: rgba(200, 138, 58, 0.18);
  border: 1px solid var(--color-accent);
  color: var(--color-accent-light);
  padding: 6px 16px;
  border-radius: 30px;
  font-size: 0.8rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero h1 {
  color: var(--color-white);
  font-size: clamp(1.5rem, 4vw, 3.4rem);
  margin: 0 auto 22px;
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.55);
}

@media (min-width: 768px) {
  .hero h1 { white-space: nowrap; }
}

.hero h1 em {
  font-style: normal;
  color: var(--color-accent-light);
}

.hero p {
  max-width: 720px;
  font-size: 1.15rem;
  color: #d8e0dd;
  margin: 0 auto 36px;
  text-shadow: 0 1px 10px rgba(0, 0, 0, 0.55);
}

.hero-actions { display: flex; gap: 18px; flex-wrap: wrap; justify-content: center; margin-bottom: 60px; }

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 900px;
  margin: 0 auto;
  border-top: 1px solid rgba(255,255,255,0.35);
  padding-top: 32px;
}

.hero-stats .stat-num {
  font-family: var(--font-heading);
  font-size: 1.9rem;
  color: var(--color-accent-light);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.6);
}
.hero-stats .stat-label {
  font-size: 0.82rem;
  color: #b7c2bf;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.6);
  margin-top: 4px;
}

/* ---------- Intro / atouts ---------- */
.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.intro-visual {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  min-height: 380px;
  background: linear-gradient(200deg, var(--color-primary) 0%, var(--color-dark) 100%);
  box-shadow: var(--shadow-md);
}
.intro-visual img {
  width: 100%;
  height: 100%;
  min-height: 380px;
  object-fit: cover;
  display: block;
}
.intro-visual .caption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 18px 22px;
  background: linear-gradient(0deg, rgba(15,42,61,0.88) 0%, rgba(15,42,61,0) 100%);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.3px;
}

.intro-visual .layer {
  position: absolute;
  left: 0; right: 0;
  height: 22%;
}
.intro-visual .layer:nth-child(1) { top: 0; background: #6b7f5a; }
.intro-visual .layer:nth-child(2) { top: 22%; background: #8a6b45; }
.intro-visual .layer:nth-child(3) { top: 44%; background: #b08d57; }
.intro-visual .layer:nth-child(4) { top: 66%; background: #5c4632; }
.intro-visual .layer:nth-child(5) { top: 88%; height: 12%; background: #3a2c20; }

/* ---------- Galerie photo terrain ---------- */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 190px;
  gap: 16px;
}
.gallery-item {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.gallery-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}
.gallery-item:hover img { transform: scale(1.06); }
.gallery-item .gallery-caption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 10px 14px;
  background: linear-gradient(0deg, rgba(15,42,61,0.85) 0%, rgba(15,42,61,0) 100%);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 600;
}
.gallery-item.tall { grid-row: span 2; }

/* ---------- Grille de logos partenaires ---------- */
.logo-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}
.logo-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 92px;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}
.logo-card:hover {
  box-shadow: var(--shadow-sm);
  transform: translateY(-3px);
  border-color: var(--color-primary-light);
}
.logo-card img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.project-thumb.has-photo {
  background-size: cover;
  background-position: center;
  position: relative;
}
.project-thumb.has-photo::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(15,42,61,0.35) 0%, rgba(15,42,61,0.65) 100%);
}
.project-thumb.has-photo span.tag,
.project-thumb.has-photo > span:not(.tag) { position: relative; z-index: 1; }

.intro-list { margin-top: 26px; display: grid; gap: 18px; }
.intro-item { display: flex; gap: 16px; align-items: flex-start; justify-content: center; text-align: left; }
.intro-icon {
  flex-shrink: 0;
  width: 44px; height: 44px;
  border-radius: 10px;
  background: rgba(47,107,94,0.1);
  color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
}
.intro-item h4 { font-size: 1.05rem; margin-bottom: 4px; }
.intro-item p { color: var(--color-text-light); font-size: 0.95rem; }

/* ---------- Cartes de services ---------- */
.grid {
  display: grid;
  gap: 28px;
}
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 34px 28px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary-light);
}

.card-icon {
  width: 56px; height: 56px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: var(--color-white);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  margin: 0 auto 20px;
}

.card h3 { font-size: 1.2rem; margin-bottom: 10px; }
.card p { color: var(--color-text-light); font-size: 0.95rem; margin-bottom: 14px; }

.card-link {
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.card-link::after { content: '→'; transition: transform var(--transition); }
.card-link:hover::after { transform: translateX(4px); }

.service-list { list-style: none; margin-top: 14px; display: flex; flex-direction: column; align-items: center; gap: 8px; }
.service-list li {
  display: inline-flex;
  align-items: flex-start;
  gap: 8px;
  max-width: 100%;
  font-size: 0.9rem;
  color: var(--color-text-light);
  text-align: left;
}
.service-list li::before {
  content: '';
  flex: 0 0 8px;
  width: 8px; height: 8px;
  margin-top: 6px;
  background: var(--color-accent);
  border-radius: 2px;
}

/* ---------- Processus ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}
.step {
  position: relative;
  padding: 30px 24px;
  background: var(--color-white);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}
.step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-heading);
  font-size: 2.2rem;
  color: var(--color-accent);
  opacity: 0.5;
  display: block;
  margin-bottom: 12px;
}
.step h4 { font-size: 1.05rem; margin-bottom: 8px; }
.step p { color: var(--color-text-light); font-size: 0.9rem; }

/* ---------- Stats band ---------- */
.stats-band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.stats-band .stat-num {
  font-family: var(--font-heading);
  font-size: 2.4rem;
  color: var(--color-accent-light);
}
.stats-band .stat-label { color: #b7c2bf; font-size: 0.9rem; margin-top: 6px; }

/* ---------- Témoignages ---------- */
.testimonial-card {
  background: var(--color-white);
  border-radius: var(--radius);
  padding: 32px;
  border: 1px solid var(--color-border);
}
.testimonial-quote { font-size: 0.98rem; color: var(--color-text); margin-bottom: 20px; font-style: italic; }
.testimonial-author { display: flex; align-items: center; justify-content: center; gap: 12px; text-align: left; }
.avatar {
  width: 46px; height: 46px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: var(--color-white);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
  font-family: var(--font-heading);
}
.testimonial-author strong { display: block; font-size: 0.92rem; }
.testimonial-author span { font-size: 0.8rem; color: var(--color-text-light); }

/* ---------- CTA band ---------- */
.cta-band {
  background: linear-gradient(120deg, var(--color-primary) 0%, #24504a 100%);
  color: var(--color-white);
  border-radius: var(--radius);
  padding: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 30px;
  flex-wrap: wrap;
}
.cta-band h2 { color: var(--color-white); margin-bottom: 10px; }
.cta-band p { color: #dce9e4; max-width: 480px; margin: 0 auto; }

/* ---------- Bannière photo (pages internes) ---------- */
.page-header {
  position: relative;
  padding: 170px 0 80px;
  color: var(--color-white);
  background: linear-gradient(160deg, var(--color-dark) 0%, var(--color-dark-2) 100%);
  background-size: cover;
  background-position: center;
  text-align: center;
  overflow: hidden;
}
.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(15,42,61,0.90) 0%, rgba(15,42,61,0.78) 55%, rgba(27,111,174,0.62) 100%);
}
.page-header .container {
  position: relative;
  z-index: 1;
}
.page-header h1 { color: var(--color-white); font-size: clamp(1.9rem, 4vw, 2.8rem); margin-bottom: 14px; }
.breadcrumb { color: #b7c2bf; font-size: 0.9rem; }
.breadcrumb a { color: var(--color-accent-light); }

/* ---------- À propos ---------- */
.values-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.value-item {
  display: flex; gap: 16px; padding: 22px;
  background: var(--color-white); border: 1px solid var(--color-border); border-radius: var(--radius);
  justify-content: center; text-align: left;
}
.value-item .num { font-family: var(--font-heading); font-size: 1.6rem; color: var(--color-accent); }

.team-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  text-align: center;
  padding-bottom: 24px;
}
.team-photo {
  height: 180px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-dark));
  display: flex; align-items: center; justify-content: center;
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 2.2rem;
  margin-bottom: 20px;
}
.team-card h4 { font-size: 1.05rem; }
.team-card .role { color: var(--color-accent); font-size: 0.85rem; margin: 4px 0 12px; font-weight: 600; }
.team-card p.bio { color: var(--color-text-light); font-size: 0.87rem; padding: 0 20px; }

.timeline { position: relative; padding-left: 34px; }
.timeline::before {
  content: ''; position: absolute; left: 8px; top: 6px; bottom: 6px; width: 2px; background: var(--color-border);
}
.timeline-item { position: relative; padding-bottom: 34px; }
.timeline-item::before {
  content: ''; position: absolute; left: -34px; top: 4px;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--color-accent); border: 3px solid var(--color-bg);
}
.timeline-item .year { color: var(--color-primary); font-weight: 700; font-size: 0.85rem; }
.timeline-item h4 { margin: 4px 0 6px; }
.timeline-item p { color: var(--color-text-light); font-size: 0.9rem; }

/* ---------- Projets ---------- */
.filter-bar { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 40px; justify-content: center; }
.filter-btn {
  padding: 9px 20px;
  border-radius: 30px;
  border: 1px solid var(--color-border);
  background: var(--color-white);
  font-size: 0.87rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--color-text-light);
  transition: all var(--transition);
}
.filter-btn:hover { border-color: var(--color-primary); color: var(--color-primary); }
.filter-btn.active { background: var(--color-primary); color: var(--color-white); border-color: var(--color-primary); }

.project-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}
.project-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.project-thumb {
  height: 170px;
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.9);
  font-size: 2rem;
  position: relative;
}
.project-thumb span.tag {
  position: absolute; top: 14px; left: 14px;
  background: rgba(0,0,0,0.35);
  color: var(--color-white);
  font-size: 0.72rem;
  padding: 5px 12px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.project-body { padding: 22px; }
.project-body h4 { margin-bottom: 6px; }
.project-body p { color: var(--color-text-light); font-size: 0.9rem; margin-bottom: 12px; }
.project-meta { display: flex; justify-content: space-between; font-size: 0.8rem; color: var(--color-text-light); border-top: 1px solid var(--color-border); padding-top: 12px; }

.thumb-1 { background: linear-gradient(135deg, #6b7f5a, #3a4b3a); }
.thumb-2 { background: linear-gradient(135deg, #8a6b45, #4a3a24); }
.thumb-3 { background: linear-gradient(135deg, #4a7c6c, #1c2a2f); }
.thumb-4 { background: linear-gradient(135deg, #b08d57, #6b4c2a); }
.thumb-5 { background: linear-gradient(135deg, #5c8c99, #24363d); }
.thumb-6 { background: linear-gradient(135deg, #c88a3a, #7a5222); }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 50px;
}
.contact-info-card {
  background: var(--color-dark);
  color: var(--color-white);
  border-radius: var(--radius);
  padding: 40px 32px;
}
.contact-info-card h3 { color: var(--color-white); margin-bottom: 8px; }
.contact-info-card > p { color: #b7c2bf; font-size: 0.92rem; margin-bottom: 30px; }
.contact-info-item { display: flex; gap: 14px; margin-bottom: 22px; align-items: flex-start; justify-content: center; text-align: left; }
.contact-info-item .ic {
  width: 40px; height: 40px; border-radius: 8px;
  background: rgba(200,138,58,0.18); color: var(--color-accent-light);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.contact-info-item strong { display: block; font-size: 0.9rem; margin-bottom: 3px; }
.contact-info-item span, .contact-info-item a { color: #cdd8d5; font-size: 0.88rem; }
.social-row { display: flex; gap: 10px; margin-top: 30px; }
.social-row a {
  width: 38px; height: 38px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.25);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.85rem;
  transition: background var(--transition), border-color var(--transition);
}
.social-row a:hover { background: var(--color-accent); border-color: var(--color-accent); }

.form-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 40px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.86rem; font-weight: 600; margin-bottom: 7px; }
.form-group .required { color: #c0392b; }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-family: inherit;
  font-size: 0.94rem;
  background: var(--color-bg);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(47,107,94,0.15);
}
.form-group textarea { resize: vertical; min-height: 130px; }
.form-error {
  display: none;
  color: #c0392b;
  font-size: 0.78rem;
  margin-top: 5px;
}
.form-group.invalid input,
.form-group.invalid select,
.form-group.invalid textarea { border-color: #c0392b; }
.form-group.invalid .form-error { display: block; }

.form-status {
  display: none;
  padding: 14px 18px;
  border-radius: 6px;
  font-size: 0.9rem;
  margin-bottom: 20px;
}
.form-status.success { display: block; background: #e5f3ee; color: #1f6f52; border: 1px solid #bfe3d4; }
.form-status.error { display: block; background: #fbeae8; color: #b3392c; border: 1px solid #f3c2bc; }

.map-wrap {
  margin-top: 60px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
  height: 380px;
}
.map-wrap iframe { width: 100%; height: 100%; border: 0; }

/* ---------- Actualités ---------- */
.news-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}
.news-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.news-thumb { height: 190px; background-size: cover; background-position: center; }
.news-thumb.no-image { background: linear-gradient(135deg, var(--color-primary), var(--color-dark)); }
.news-body { padding: 22px; }
.news-date { font-size: 0.78rem; color: var(--color-accent); font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 8px; display: block; }
.news-body h3 { font-size: 1.1rem; margin-bottom: 10px; }
.news-body p { color: var(--color-text-light); font-size: 0.9rem; margin-bottom: 14px; }

.article-header { max-width: 780px; margin: 0 auto 30px; text-align: center; }
.article-cover { max-width: 900px; margin: 0 auto 40px; border-radius: var(--radius); overflow: hidden; }
.article-cover img { width: 100%; }
.article-body { max-width: 720px; margin: 0 auto; font-size: 1.02rem; color: var(--color-text); }
.article-body p { margin-bottom: 20px; }
.article-back { display: inline-flex; align-items: center; gap: 6px; margin-bottom: 20px; color: var(--color-primary); font-weight: 600; font-size: 0.9rem; }

.faq-item {
  border-bottom: 1px solid var(--color-border);
  padding: 20px 0;
}
.faq-question {
  display: flex; align-items: center; justify-content: space-between;
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
}
.faq-question .icon { transition: transform var(--transition); color: var(--color-accent); font-size: 1.3rem; }
.faq-item.open .faq-question .icon { transform: rotate(45deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  color: var(--color-text-light);
  font-size: 0.92rem;
}
.faq-item.open .faq-answer { max-height: 240px; padding-top: 14px; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-dark);
  color: #b7c2bf;
  padding: 70px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 50px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-grid h4 { color: var(--color-white); font-size: 1rem; margin-bottom: 18px; }
.footer-grid p { font-size: 0.88rem; line-height: 1.7; }
.footer-links { display: grid; gap: 10px; }
.footer-links a { font-size: 0.88rem; transition: color var(--transition); }
.footer-links a:hover { color: var(--color-accent-light); }
.footer-bottom {
  display: flex; justify-content: center; align-items: center;
  padding: 22px 0; font-size: 0.82rem; flex-wrap: wrap; gap: 10px 24px;
}
.footer-bottom a { color: #b7c2bf; }
.footer-bottom a:hover { color: var(--color-accent-light); }

/* ---------- Back to top ---------- */
.back-to-top {
  position: fixed;
  bottom: 26px; right: 26px;
  width: 46px; height: 46px;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-white);
  border: none;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition);
  z-index: 900;
}
.back-to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in-view { opacity: 1; transform: translateY(0); }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .intro-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .values-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .logo-grid { grid-template-columns: repeat(4, 1fr); }
}

@media (max-width: 760px) {
  .nav-links, .nav-cta .btn { display: none; }
  .nav-toggle { display: flex; }
  .nav-links.mobile-open {
    display: flex;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--color-dark-2);
    flex-direction: column;
    padding: 20px 24px 30px;
    gap: 18px;
    box-shadow: var(--shadow-md);
  }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .grid-3, .grid-4, .grid-2 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .stats-band { grid-template-columns: repeat(2, 1fr); gap: 30px; }
  .cta-band { flex-direction: column; text-align: center; padding: 40px 28px; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  section { padding: 56px 0; }
  .gallery-grid { grid-template-columns: 1fr 1fr; grid-auto-rows: 140px; }
  .gallery-item.tall { grid-row: span 1; }
  .logo-grid { grid-template-columns: repeat(3, 1fr); }
}