body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: white;
  color: #163a67;
}

.container {
  width: 90%;
  max-width: 1100px;
  margin: auto;
}

/* Header Navigation */
.header {
  background: white;
  border-bottom: 1px solid #ddd;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
}

.nav a {
  margin-left: 20px;
  text-decoration: none;
  color: #163a67;
  font-weight: bold;
}

.logo img {
  height: 42px;
  width: auto;
  display: block;
}

/* Hero */
.hero {
  padding: 60px 0 80px;
  text-align: center;
}

.hero-logo {
  margin-bottom: 30px;
}

.hero-logo img {
  width: 100%;
  max-width: 500px;
  height: auto;
  display: block;
  margin: 0 auto;
}

.hero h1 {
  font-size: 48px;
  margin-bottom: 20px;
}

.hero p {
  max-width: 600px;
  margin: auto;
  color: #555;
}

.section {
  padding: 60px 0;
}

.section.alt {
  background: #ffffff;
}

.section h2 {
  margin-bottom: 10px;
}

.section-desc {
  margin-bottom: 30px;
  color: #666;
}

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

.card {
  background: white;
  padding: 20px;
  border-radius: 10px;
  border: 1px solid #ddd;
}

/* Buttons */
.btn {
  display: inline-block;
  margin-top: 20px;
  padding: 12px 20px;
  background: #0fa3b5;
  color: white;
  text-decoration: none;
  border-radius: 5px;
}

/* Contact */
.contact {
  text-align: center;
}

/* Footer */
.footer {
  text-align: center;
  padding: 30px 0;
  border-top: 1px solid #ddd;
  margin-top: 40px;
}