/* ===== FONTS ===== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700&display=swap');

/* ===== RESET ===== */
*{margin:0;padding:0;box-sizing:border-box;}
body{
  font-family: 'Inter', system-ui, sans-serif;
  background: #F0F4F8; /* fond clair global */
  color: #111827; /* texte sombre pour lisibilité */
  line-height: 1.7;
  scroll-behavior: smooth;
}
.container{width:90%;max-width:1200px;margin:auto;}

/* ===== HEADER ===== */
.header{
  position: sticky;
  top:0;
  z-index: 100;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0,0,0,0.05);
}
.header-content{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:1rem 0;
}
.logo{
  font-size:1.8rem;
  font-weight:700;
  letter-spacing:.5px;
  color:#0F172A;
}
.nav a{
  margin-left:1.5rem;
  color:#0F172A;
  text-decoration:none;
  font-weight:500;
  transition:.3s;
}
.nav a:hover{color:#38bdf8;}
.lang-switch button{
  background:none;
  border:none;
  color:#0F172A;
  margin-left:.5rem;
  cursor:pointer;
  font-weight:600;
}
.lang-switch .active{color:#38bdf8;}

/* ===== HERO ===== */
.hero{
  position: relative;
  height:80vh;
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  overflow:hidden;
  background: linear-gradient(135deg,#E0F2FE,#FFFFFF);
}
.hero-overlay{
  position:absolute;
  inset:0;
  background: rgba(0,0,0,0.1);
  z-index:1;
}
.hero-content{
  position: relative;
  z-index:2;
  max-width:800px;
  animation: fadeInUp 1s ease forwards;
}
.hero h1{
  font-size:3rem;
  font-weight:700;
  margin-bottom:1rem;
  color:#0F172A;
}
.hero p{
  font-size:1.1rem;
  margin-bottom:2rem;
  color:#334155;
}

/* ===== BUTTON ===== */
.btn-glow{
  display:inline-block;
  padding:.9rem 2rem;
  border-radius:8px;
  font-weight:600;
  color:#fff;
  background: linear-gradient(135deg,#38bdf8,#3b82f6);
  box-shadow: 0 5px 20px rgba(56,189,248,0.4);
  transition:.3s;
  text-decoration:none;
}
.btn-glow:hover{
  box-shadow:0 0 30px rgba(56,189,248,.6),0 0 40px rgba(56,189,248,.4);
  transform: translateY(-3px);
}

/* ===== SECTIONS ===== */
.section{
  padding:5rem 0;
  border-radius:12px;
  margin-bottom:3rem;
  background:#F8FAFC;
  color:#111827;
}
.section.dark{background:#E2E8F0; color:#111827;}
.cards{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:2rem;
}

/* ===== CARDS GLASS ===== */
.card-glass{
  background: rgba(255,255,255,0.85);
  border:1px solid rgba(0,0,0,.05);
  border-radius:12px;
  padding:2rem;
  box-shadow:0 8px 25px rgba(0,0,0,0.05);
  transition:.3s transform, .3s box-shadow;
}
.card-glass:hover{
  transform:translateY(-10px) rotateX(2deg) rotateY(2deg);
  box-shadow:0 15px 40px rgba(56,189,248,0.4);
}

/* CARD OUTLINE */
.card-outline{
  border:1px solid rgba(56,189,248,.3);
  border-radius:12px;
  padding:2rem;
  transition:.3s transform, .3s box-shadow;
}
.card-outline:hover{
  transform:translateY(-8px);
  box-shadow:0 12px 25px rgba(56,189,248,.3);
}

/* ===== VALUE CARDS ===== */
.values{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:2rem;
}
.value-card{
  background: rgba(255,255,255,0.9);
  border-radius:12px;
  padding:2rem;
  transition:.3s transform, .3s box-shadow;
}
.value-card:hover{
  transform:translateY(-5px);
  box-shadow:0 10px 20px rgba(56,189,248,.2);
}

/* ===== STATS ===== */
.stats{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(180px,1fr));
  gap:2rem;
  text-align:center;
}
.stat-card h3{
  font-size:2.5rem;
  font-weight:700;
  color:#38bdf8;
}
.stat-card p{opacity:.9;font-weight:500;}

/* ===== CONTACT ===== */
.contact{
  background:#F8FAFC;
  padding:5rem 0;
}
.contact-form{
  max-width:500px;
  margin:auto;
  display:flex;
  flex-direction:column;
}
.contact-form input,
.contact-form textarea{
  width:100%;
  margin-bottom:1rem;
  padding:1rem;
  border-radius:8px;
  border:1px solid rgba(0,0,0,.1);
  background:#fff;
  color:#111827;
}

/* ===== FOOTER ===== */
.footer{
  text-align:center;
  padding:2rem;
  color:#475569;
  font-size:.9rem;
}

/* ===== ANIMATIONS ===== */
.reveal{
  opacity:0;
  transform:translateY(40px);
  transition:.9s ease;
}
.reveal.active{
  opacity:1;
  transform:none;
}
@keyframes fadeInUp{
  0%{opacity:0;transform:translateY(30px);}
  100%{opacity:1;transform:translateY(0);}
}

/* ===== IMAGE SLOTS ===== */
.img-slot{
  width:100%;
  height:250px;
  background: linear-gradient(135deg,#E5E7EB,#F3F4F6);
  border-radius:12px;
  margin-bottom:1.5rem;
  display:flex;
  align-items:center;
  justify-content:center;
  color:#6B7280;
  font-weight:600;
  font-size:1.1rem;
}

/* ===== MEDIA QUERIES ===== */
@media(max-width:768px){
  .nav{display:none;}
  .hero h1{font-size:2.2rem;}
  .cards{grid-template-columns:1fr;}
  .values{grid-template-columns:1fr;}
}