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

body {
  font-family: 'Segoe UI', sans-serif;
  background-color: #f5f7fa; color: #333;
}

/* Navbar */
.navbar {
  display: flex; justify-content: space-between; align-items: center;
  background-color: #0e1e40; padding: 1rem 2rem;
}
.navbar .logo, .navbar nav a {
  color: #fff; text-decoration: none; font-weight: bold;
}
.navbar nav a { margin-left: 1.5rem; }
.navbar nav a.active, .navbar nav a:hover { color: #1abc9c; }

/* Hero */
.hero {
  padding: 80px 20px; text-align: center;
}
.fade-in { opacity: 0; transform: translateY(20px); transition: opacity 0.8s ease-out, transform 0.8s ease-out; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* Cards */
.card-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(260px,1fr)); gap: 1.5rem; padding: 40px; }
.card {
  background: #fff; padding: 1.5rem; border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.card:hover {
  transform: scale(1.02); box-shadow: 0 8px 20px rgba(0,0,0,0.15);
}

/* Buttons */
.btn {
  position: relative; display: inline-block;
  padding: 0.8rem 2rem; background: #0e1e40; color: #fff; border: none; cursor: pointer;
  overflow: hidden; transition: color 0.3s;
}
.btn::after {
  content: ''; position: absolute;
  top: 50%; left: 50%; width: 0; height: 0;
  background: rgba(255,255,255,0.2); border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s ease, height 0.6s ease;
}
.btn:hover::after { width: 200px; height: 200px; }

/* Responsive */
@media (max-width: 768px) {
  .navbar { flex-direction: column; align-items: flex-start; }
  .navbar nav { margin-top: 1rem; display: flex; flex-direction: column; }
}