body {
  font-family: 'Poppins', sans-serif;
  margin: 0;
  background: #f8fafc;
  color: #222;
  line-height: 1.6;
}
header {
  background: linear-gradient(135deg,#0077b6,#00b4d8);
  color: white;
  padding: 50px 20px;
  text-align: center;
}
nav {
  background: #023e8a;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 20px;
  padding: 14px;
}
nav a {
  color: white;
  text-decoration: none;
  font-weight: 500;
  transition: 0.3s;
}
nav a:hover {
  color: #90e0ef;
  text-decoration: underline;
}
section {max-width: 1100px; margin:auto; padding:60px 20px;}
h2 {color:#0077b6; margin-top:0;}
.card {
  background: white;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  padding: 20px;
  margin: 25px 0;
  transition: transform .2s ease;
}
.card:hover {transform: translateY(-3px);}
footer {
  background: #023e8a;
  color: white;
  text-align: center;
  padding: 20px;
  margin-top: 40px;
}
img {width:100%; border-radius:10px; margin-top:15px;}
html {scroll-behavior:smooth;}
button,.btn {
  background:#00b4d8;
  color:white;
  padding:10px 20px;
  border:none;
  border-radius:6px;
  cursor:pointer;
  transition:background .3s;
}
button:hover,.btn:hover {background:#0077b6;}
form input,form textarea {
  width:100%; padding:10px; margin:6px 0 14px 0;
  border:1px solid #ccc; border-radius:6px;
}
@media(max-width:700px){nav{flex-direction:column;}}