body{
  margin:0;
  font-family:Arial;
  background:#0b1020;
  color:white;
}

header{
  display:flex;
  justify-content:space-between;
  padding:20px;
  background:#050814;
  position:sticky;
  top:0;
}

nav a{
  color:white;
  margin-left:15px;
  text-decoration:none;
}

.hero{
  height:90vh;
  display:flex;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  text-align:center;
  background:linear-gradient(135deg,#111827,#020617);
}

.section{
  padding:60px 20px;
  max-width:900px;
  margin:auto;
}

.card{
  background:#111827;
  padding:20px;
  border-radius:12px;
  margin-top:20px;
}

.btn{
  padding:12px 20px;
  background:#38bdf8;
  border:none;
  cursor:pointer;
  border-radius:8px;
  margin-top:20px;
}

.cover-box{
  border:2px dashed #38bdf8;
  padding:40px;
  text-align:center;
  margin:20px 0;
}

.form{
  display:flex;
  flex-direction:column;
  gap:10px;
}

input,textarea{
  padding:10px;
  border:none;
  border-radius:6px;
}

textarea{height:120px;}

footer{
  text-align:center;
  padding:20px;
  background:#050814;
  margin-top:40px;
}

.conseil{
  font-size:12px;
  opacity:0.7;
  margin-top:10px;
}

/* WOW animation */
.wow{
  opacity:0;
  transform:translateY(40px);
  animation:fadeUp 1s ease forwards;
}

@keyframes fadeUp{
  to{
    opacity:1;
    transform:translateY(0);
  }
}

/* mobile premium */
@media(max-width:768px){
  .hero h1{font-size:2em;}
  header{flex-direction:column;}
}