*{
  margin:0;
  padding:0;
  box-sizing:border-box;
  font-family:'Poppins',sans-serif;
}

body{
  background:#f4f6fb;
  color:#1e293b;
}

/* HERO */
.hero{
  height:90vh;
  background:linear-gradient(120deg,#0f172a,#1e40af,#2563eb);
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  color:white;
}

.hero-content h1{
  font-size:64px;
  font-weight:700;
  letter-spacing:2px;
}

.hero-content p{
  font-size:22px;
  margin:20px 0;
  opacity:0.9;
}

.btn-main{
  display:inline-block;
  margin-top:20px;
  padding:15px 40px;
  background:white;
  color:#1e40af;
  text-decoration:none;
  font-weight:600;
  border-radius:40px;
  transition:0.3s;
}

.btn-main:hover{
  background:#e0e7ff;
  transform:scale(1.05);
}

/* NAVBAR */
.navbar{
  background:#020617;
  padding:15px;
  text-align:center;
}

.navbar a{
  color:white;
  margin:0 18px;
  text-decoration:none;
  font-weight:500;
  transition:0.3s;
}

.navbar a:hover{
  color:#60a5fa;
}

/* SECTIONS */
.section{
  max-width:1100px;
  margin:70px auto;
  padding:60px;
  background:white;
  border-radius:20px;
  box-shadow:0 20px 40px rgba(0,0,0,0.08);
}

.section.dark{
  background:#0f172a;
  color:white;
}

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

/* CARDS */
.cards{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
  gap:30px;
  margin-top:40px;
}

.card{
  background:#1e293b;
  padding:30px;
  border-radius:20px;
  transition:0.4s;
}

.card h3{
  color:#60a5fa;
  margin-bottom:10px;
}

.card p{
  opacity:0.9;
}

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

/* FOOTER */
footer{
  background:#020617;
  color:white;
  text-align:center;
  padding:30px;
}