body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  background-color: #f8f9fa;
  color: #333;
}
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  background: #fff;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
  position: sticky;
  top: 0;
  z-index: 10;
}
.navbar .logo {
  display: flex;
  align-items: center;
}
.navbar .logo img {
  height: 120px;
  margin-right: 10px;
}
.navbar nav a {
  margin: 0 10px;
  text-decoration: none;
  color: #333;
  font-weight: 500;
}
.navbar nav a:hover {
  color: #0066CC;
}
.hero {
  text-align: center;
  padding: 5rem 2rem;
  background: linear-gradient(135deg, #0066CC, #00BFFF);
  color: white;
}
.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}
.hero p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
}
.btn-primary {
  background-color: #333;
  color: white;
  padding: 0.8rem 1.5rem;
  border: none;
  border-radius: 5px;
  text-decoration: none;
}
.btn-primary:hover {
  background-color: #555;
}
.section {
  padding: 4rem 2rem;
  text-align: center;
}
.section.alt {
  background-color: #fff;
}
.cards {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
}
.card {
  background: #fff;
  padding: 1.5rem;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  flex: 1 1 250px;
  max-width: 300px;
}
footer {
  text-align: center;
  padding: 1rem;
  background: #f0f0f0;
  font-size: 0.9rem;
}
form {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  max-width: 400px;
  margin: 0 auto;
}
input, textarea {
  width: 100%;
  padding: 0.8rem;
  border: 1px solid #ccc;
  border-radius: 5px;
}
button {
  cursor: pointer;
}
.hidden {
  display: none;
}
@media (max-width: 768px) {
  .cards { flex-direction: column; }
  .hero h1 { font-size: 2rem; }
}