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

body{
  background:#0f172a;
  color:white;
}

/* header */

header{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:20px 10%;
  background:#020617;
  position:fixed;
  width:100%;
  z-index:1000;
}

.logo{
  font-size:24px;
  font-weight:bold;
  color:#38bdf8;
}

nav a{
  margin-left:25px;
  text-decoration:none;
  color:white;
  transition:0.3s;
}

nav a:hover{
  color:#38bdf8;
}

/* hero */

.hero{
  height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  background:linear-gradient(120deg,#020617,#0f172a,#1e293b);
}

.hero h1{
  font-size:60px;
  margin-bottom:10px;
}

.hero button{
  margin-top:20px;
  padding:12px 30px;
  border:none;
  background:#38bdf8;
  color:white;
  font-size:16px;
  border-radius:5px;
  cursor:pointer;
  transition:0.3s;
}

.hero button:hover{
  background:#0ea5e9;
  transform:scale(1.05);
}

/* section */

.section{
  padding:120px 10%;
  text-align:center;
}

.section h2{
  font-size:36px;
  margin-bottom:20px;
}

/* services */

.service-box{
  display:flex;
  justify-content:center;
  gap:40px;
  flex-wrap:wrap;
  margin-top:40px;
}

.card{
  background:#1e293b;
  padding:30px;
  width:260px;
  border-radius:10px;
  transition:0.4s;
}

.card img{
  width:60px;
  margin-bottom:15px;
}

.card:hover{
  transform:translateY(-10px);
  box-shadow:0 20px 40px rgba(0,0,0,0.4);
}

/* contact */

.contact{
  background:#020617;
}

/* footer */

footer{
  text-align:center;
  padding:20px;
  background:#020617;
  margin-top:40px;
}

/* animation */

.fade-in{
  opacity:0;
  transform:translateY(40px);
  transition:1s;
}

.fade-in.show{
  opacity:1;
  transform:translateY(0);
}