@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

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

body{
  font-family:'Inter',sans-serif;
  background:linear-gradient(135deg,#f5f7fb,#eef2ff);
  color:#1f2937;
  line-height:1.75;
}

header{
  background:#0b1f3a;
  padding:22px 70px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  position:sticky;
  top:0;
  z-index:1000;
  box-shadow:0 4px 20px rgba(0,0,0,0.15);
}

.logo strong{
  font-size:20px;
  color:#fff;
  font-weight:700;
}

.logo span{
  font-size:12px;
  color:#cbd5e1;
  display:block;
  margin-top:4px;
}

nav a{
  color:#ffffff;
  text-decoration:none;
  margin-left:28px;
  font-size:14px;
  font-weight:500;
  position:relative;
  transition:all 0.3s ease;
}

nav a::after{
  content:"";
  position:absolute;
  left:0;
  bottom:-6px;
  width:0%;
  height:2px;
  background:#ffffff;
  transition:0.3s ease;
}

nav a:hover::after{
  width:100%;
}

.hero{
  max-width:1100px;
  margin:140px auto 80px;
  text-align:center;
  padding:0 20px;
}

.hero h1{
  font-size:44px;
  font-weight:700;
  color:#0b1f3a;
  margin-bottom:25px;
}

.hero p{
  font-size:18px;
  color:#6b7280;
  max-width:800px;
  margin:auto;
}

.section, .container{
  max-width:1100px;
  margin:60px auto;
  padding:60px 70px;
  background:#ffffff;
  border-radius:18px;
  box-shadow:0 30px 80px rgba(0,0,0,0.05);
  transition:all 0.4s ease;
}

.section:hover{
  transform:translateY(-5px);
}

h1{
  font-size:36px;
  font-weight:700;
  color:#0b1f3a;
  margin-bottom:35px;
}

h2{
  font-size:26px;
  font-weight:600;
  color:#0b1f3a;
  margin-top:50px;
  margin-bottom:18px;
}

h3{
  font-size:20px;
  font-weight:600;
  color:#1e3a8a;
  margin-top:35px;
  margin-bottom:10px;
}

p{
  margin-bottom:18px;
  font-size:16px;
  color:#374151;
}

ul{
  margin-left:20px;
  margin-bottom:20px;
}

li{
  margin-bottom:8px;
}

footer{
  background:#0b1f3a;
  color:#ffffff;
  padding:70px 20px;
  text-align:center;
  font-size:14px;
  margin-top:120px;
}

.section, .container, .hero{
  animation:fadeUp 1s ease forwards;
}

@keyframes fadeUp{
  from{opacity:0; transform:translateY(25px);}
  to{opacity:1; transform:translateY(0);}
}

@media(max-width:768px){
  header{
    flex-direction:column;
    text-align:center;
    padding:20px;
  }
  nav{
    margin-top:15px;
  }
  nav a{
    display:inline-block;
    margin:10px;
  }
  .section, .container{
    padding:35px;
  }
  .hero h1{
    font-size:28px;
  }
}