* {
  box-sizing: border-box;
  font-family: 'Segoe UI', sans-serif;
}

body {
  margin: 0;
  background: #f4f6f8;
}

.navbar {
  background: #0a3d62;
  color: white;
  padding: 20px;
  text-align: center;
}

.navbar nav a {
  color: white;
  margin: 0 12px;
  text-decoration: none;
  font-weight: 500;
}

.hero {
  background: linear-gradient(135deg, #1e90ff, #3742fa);
  color: white;
  padding: 70px 20px;
  text-align: center;
}

.container {
  max-width: 1000px;
  margin: 40px auto;
  padding: 0 20px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.card {
  background: white;
  padding: 25px;
  border-radius: 12px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.accordion {
  margin-bottom: 15px;
}

.acc-btn {
  width: 100%;
  padding: 15px;
  background: #1e90ff;
  color: white;
  border: none;
  text-align: left;
  font-size: 16px;
  border-radius: 8px;
  cursor: pointer;
}

.acc-content {
  display: none;
  background: white;
  padding: 15px;
  border-radius: 0 0 8px 8px;
  box-shadow: inset 0 0 8px rgba(0,0,0,0.1);
}

footer {
  background: #0a3d62;
  color: white;
  text-align: center;
  padding: 15px;
  margin-top: 50px;
}

@media (max-width: 600px) {
  .navbar nav a {
    display: block;
    margin: 8px 0;
  }
}