/* style.css - Refonte Visuelle et Ergonomique Complète */

:root {
  /* Couleurs principales */
  --primary: #0d3b66;
  --secondary: #faa307;
  --bg-light: #f4f7fa;
  --bg-alt: #ffffff;
  --text-dark: #212529;
  --text-light: #ffffff;
  --radius: 0.75rem;
  --transition: 0.4s;
  --container-max: 1140px;
}

/* ================= Reset Générale ================ */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  font-family: 'Inter', sans-serif;
  font-size: 16px;
  scroll-behavior: smooth;
}
body {
  background-color: var(--bg-light);
  color: var(--text-dark);
  line-height: 1.6;
  padding-top: 72px;
  transition: background var(--transition), color var(--transition);
}
a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}
a:hover {
  color: var(--secondary);
}
:focus {
  outline: 3px solid var(--secondary);
  outline-offset: 2px;
}

/* ================ Container Central =============== */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1rem;
}

/* ================= Navbar Fixée ================== */
nav.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 72px;
  background: var(--primary);
  display: flex;
  align-items: center;
  padding: 0 2rem;
  z-index: 1000;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}
.navbar-brand {
  font-size: 1.75rem;
  font-weight: bold;
  color: var(--text-light) !important;
}
.navbar-nav {
  margin-left: auto;
  display: flex;
  gap: 1.5rem;
}
.nav-link {
  color: var(--secondary) !important;
  font-weight: 600;
  position: relative;
  padding: 0.5rem;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 3px;
  background: var(--secondary);
  transition: width var(--transition), left var(--transition);
}
.nav-link:hover::after {
  width: 60%;
  left: 20%;
}

/* ================= Hero Vidéo =================== */
.hero {
  position: relative;
  height: calc(100vh - 72px);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.hero-video {
  position: absolute;
  top: 50%;
  left: 50%;
  min-width: 100%;
  min-height: 100%;
  transform: translate(-50%, -50%);
  object-fit: cover;
  filter: brightness(0.5) contrast(1.2);
  transition: filter var(--transition);
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(13,59,102,0.6);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 600px;
  color: var(--text-light);
}
.hero-content h1 {
  font-size: 4rem;
  font-weight: 700;
  margin-bottom: 1rem;
}
.hero-content p.lead {
  font-size: 1.5rem;
  margin-bottom: 2rem;
}
.hero-content .btn-accent {
  background: var(--secondary);
  color: var(--text-light);
  padding: 1rem 2rem;
  font-size: 1.125rem;
  border-radius: var(--radius);
  transition: transform var(--transition), background var(--transition);
}
.hero-content .btn-accent:hover {
  background: #e58d07;
  transform: translateY(-4px);
}

/* ================= Sections Globales ============== */
section {
  padding: 6rem 0;
}
section:nth-of-type(even) {
  background: var(--bg-alt);
}
.section-title {
  font-size: 2.75rem;
  font-weight: 700;
  color: var(--primary);
  text-align: center;
  margin-bottom: 2rem;
  position: relative;
}
.section-title::after {
  content: '';
  display: block;
  width: 100px;
  height: 5px;
  background: var(--secondary);
  margin: 1rem auto 0;
}

/* ================= Services / Pôles ============== */
.row.services {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}
.pole-card {
  background: var(--light);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
}
.pole-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}
.pole-card .card-body {
  flex-grow: 1;
  padding: 1.5rem;
}
.pole-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 24px rgba(0,0,0,0.1);
}
.pole-card .btn-outline-primary {
  margin-top: auto;
  align-self: start;
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
}

/* ================= Statistiques ================ */
.stats {
  background: var(--primary);
  color: var(--text-light);
}
.stats .row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}
.stat-item {
  flex: 1 1 200px;
  text-align: center;
  padding: 2rem;
  border-radius: var(--radius);
  background: rgba(255,255,255,0.1);
}
.stat-item i {
  font-size: 3rem;
  color: var(--secondary);
  margin-bottom: 0.5rem;
}
.stat-item h3 {
  font-size: 2rem;
}

/* ================= Équipe ==================== */
.row.team {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
}
.team-member {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}
.team-member img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  transition: transform var(--transition);
}
.team-member:hover img {
  transform: scale(1.05);
}
.team-member .overlay {
  position: absolute;
  bottom: 0;
  width: 100%;
  background: rgba(13,59,102,0.85);
  color: var(--light);
  padding: 1.5rem;
  transform: translateY(100%);
  transition: transform var(--transition);
}
.team-member:hover .overlay {
  transform: translateY(0);
}

/* ================= Réalisations =============== */
#themeTabs {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
}
#themeTabs .nav-link {
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius);
  border: 1px solid var(--primary);
  background: var(--light);
  color: var(--primary);
  transition: background var(--transition), color var(--transition);
}
#themeTabs .nav-link.active,
#themeTabs .nav-link:hover {
  background: var(--primary);
  color: var(--light);
}
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}
.card-item { position: relative; }
.card-item .card-body {
  padding: 1.25rem;
  text-align: center;
}
.card-item .btn {
  background: var(--secondary);
  color: var(--light);
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  border: none;
  transition: background var(--transition), transform var(--transition);
}
.card-item .btn:hover {
  background: #e59500;
  transform: translateY(-2px);
}

/* ================= FAQ ======================== */
.accordion {
  max-width: 800px;
  margin: 0 auto;
}
.accordion-button {
  background: var(--bg-light);
  color: var(--primary);
  font-weight: 600;
  border-radius: var(--radius);
  margin-bottom: 0.5rem;
}
.accordion-button:not(.collapsed) {
  background: var(--bg-alt);
}

/* ================= Contact Form ============== */
.contact-section .form-control {
  border-radius: var(--radius);
  padding: 0.75rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.contact-section .form-control:focus {
  border-color: var(--secondary);
  box-shadow: 0 0 0 0.25rem rgba(250,163,7,0.3);
}
.contact-section .btn-primary {
  background: var(--primary);
  color: var(--light);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  transition: background var(--transition), transform var(--transition);
}
.contact-section .btn-primary:hover {
  background: #0b3355;
  transform: translateY(-2px);
}

/* ================= Back to Top =============== */
#backToTop {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: var(--secondary);
  color: var(--light);
  padding: 0.5rem;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.2rem;
  display: none;
  transition: transform var(--transition);
}
#backToTop:hover { transform: translateY(-3px); }

/* ================= Cookie Banner =============== */
#cookieConsent {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: rgba(0,0,0,0.8);
  color: var(--light);
  padding: 1rem;
  font-size: 0.875rem;
  display: none;
  z-index: 10000;
}
#cookieConsent .container { display:flex; align-items:center; justify-content:space-between; }

/* ================= Preloader ================== */
#preloader {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: var(--bg-alt);
  display:flex; align-items:center; justify-content:center;
  z-index: 9999;
}

/* ================= Footer ===================== */
footer {
  background: var(--primary);
  color: #ccc;
  text-align: center;
  padding: 1.5rem 0;
}
footer a { color:#ccc; margin:0 0.5rem; }
footer a:hover { color:var(--light); }

/* ================= Dark Mode ================== */
@media (prefers-color-scheme: dark) {
  :root {
    --bg-light: #121212;
    --bg-alt: #1f1f1f;
    --text-dark: #e0e0e0;
    --primary: #0f4c75;
    --secondary: #3282b8;
  }
  body { background:var(--bg-light); color:var(--text-dark); }
  nav.navbar, footer { background:var(--bg-alt); }
}