/* Base styles */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  line-height: 1.5;
  color: #0a1931;
  background-color: #ffffff;
}

/* Navigation bar */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  position: fixed;
  top: 0;
  width: 100%;
  background-color: rgba(0, 0, 0, 0.6);
  color: #ffffff;
  z-index: 1000;
}

.logo a {
  color: #ffffff;
  font-weight: bold;
  text-decoration: none;
  font-size: 1.5rem;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: #ffffff;
  text-decoration: none;
  font-size: 1rem;
  transition: opacity 0.2s ease-in-out;
}

.nav-links a:hover {
  opacity: 0.8;
}

/* Hero section */
.hero {
  position: relative;
  width: 100%;
  height: 80vh;
  background-image: url('images/hero.png');
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #ffffff;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(10, 25, 49, 0.6);
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-content h1 {
  font-size: 3rem;
  margin: 0;
}

.hero-content p {
  font-size: 1.25rem;
  margin-top: 0.5rem;
}

.btn {
  display: inline-block;
  margin-top: 1.5rem;
  padding: 0.75rem 1.5rem;
  background-color: #e63946;
  color: #ffffff;
  border-radius: 4px;
  text-decoration: none;
  font-weight: bold;
  transition: background-color 0.2s ease-in-out;
}

.btn:hover {
  background-color: #b82e39;
}

/* Sections */
.section {
  padding: 4rem 2rem;
  max-width: 900px;
  margin: 0 auto;
}

.section h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: #0a1931;
}

/* Stats */
.stats {
  display: flex;
  gap: 2rem;
  list-style: none;
  margin: 2rem 0 0 0;
  padding: 0;
}

.stats li {
  flex: 1;
  text-align: center;
  background: #f4d35e;
  color: #0a1931;
  padding: 1rem;
  border-radius: 8px;
}

.stats .stat-number {
  display: block;
  font-size: 2rem;
  font-weight: bold;
}

/* Theme grid */
.theme-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.theme-item {
  background: #006d77;
  color: #ffffff;
  padding: 1rem;
  border-radius: 6px;
  text-align: center;
  font-weight: bold;
}

/* Timeline */
.timeline {
  list-style: none;
  padding: 0;
  margin: 1rem 0;
}

.timeline li {
  margin-bottom: 0.75rem;
  padding-left: 1.5rem;
  position: relative;
}

.timeline li::before {
  content: '\2022';
  position: absolute;
  left: 0;
  color: #e63946;
  top: 0;
  font-size: 1.5rem;
  line-height: 1rem;
}

/* Contact form */
.contact-form {
  display: flex;
  flex-direction: column;
  max-width: 400px;
  margin-top: 1rem;
}

.contact-form label {
  margin-bottom: 0.5rem;
}

.contact-form input {
  padding: 0.5rem;
  margin-bottom: 1rem;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 1rem;
}

.contact-form button {
  padding: 0.75rem;
  background-color: #006d77;
  color: #ffffff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-weight: bold;
}

.contact-form button:hover {
  background-color: #00525f;
}

/* Footer */
footer {
  background-color: #0a1931;
  color: #ffffff;
  text-align: center;
  padding: 1rem 0;
  font-size: 0.875rem;
}

/* Visually hidden element for accessibility */
.visually-hidden {
  position: absolute;
  left: -10000px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* Responsive tweaks */
@media (max-width: 768px) {
  .navbar .nav-links {
    gap: 1rem;
  }
  .hero-content h1 {
    font-size: 2.5rem;
  }
  .stats {
    flex-direction: column;
    gap: 1rem;
  }
  .stats li {
    margin-bottom: 1rem;
  }
}