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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: #FFFFFF;
  background: #0A192F;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Navigation */
.navbar {
  background: #1E3A8A;
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-brand {
  font-size: 1.5rem;
  font-weight: bold;
  color: #00BFFF;
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  color: #FFFFFF;
  text-decoration: none;
  transition: color 0.3s;
}

.nav-links a:hover {
  color: #00BFFF;
}

/* Hero Section */
.hero {
  padding: 8rem 0;
  text-align: center;
  background: linear-gradient(135deg, #1E3A8A 0%, #0A192F 100%);
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  color: #FFFFFF;
}

.hero-subtitle {
  font-size: 1.5rem;
  color: #94A3B8;
  margin-bottom: 3rem;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Buttons */
.btn-primary, .btn-secondary, .btn-large {
  padding: 0.75rem 2rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s;
  display: inline-block;
}

.btn-large {
  padding: 1rem 2.5rem;
  font-size: 1.1rem;
}

.btn-primary {
  background: #00BFFF;
  color: #0A192F;
  border: 2px solid #00BFFF;
}

.btn-primary:hover {
  background: transparent;
  color: #00BFFF;
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(0, 191, 255, 0.3);
}

.btn-secondary {
  background: transparent;
  color: #FFFFFF;
  border: 2px solid #FFFFFF;
}

.btn-secondary:hover {
  background: #FFFFFF;
  color: #0A192F;
  transform: translateY(-2px);
}

/* Features Section */
.features {
  padding: 6rem 0;
  background: #0A192F;
}

.features h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 4rem;
  color: #FFFFFF;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.feature-card {
  background: #1E3A8A;
  padding: 2rem;
  border-radius: 12px;
  border: 1px solid #475569;
  transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 191, 255, 0.2);
  border-color: #00BFFF;
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.feature-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: #00BFFF;
}

.feature-card p {
  color: #94A3B8;
  line-height: 1.8;
}

/* About Section */
.about {
  padding: 6rem 0;
  background: #1E3A8A;
  text-align: center;
}

.about h2 {
  font-size: 2.5rem;
  margin-bottom: 2rem;
  color: #FFFFFF;
}

.about-text {
  font-size: 1.2rem;
  color: #94A3B8;
  max-width: 800px;
  margin: 0 auto;
  line-height: 1.8;
}

/* Contact Section */
.contact {
  padding: 6rem 0;
  background: #0A192F;
  text-align: center;
}

.contact h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: #FFFFFF;
}

.contact p {
  font-size: 1.2rem;
  color: #94A3B8;
  margin-bottom: 2rem;
}

/* Footer */
.footer {
  background: #1E3A8A;
  padding: 2rem 0;
  text-align: center;
  border-top: 1px solid #475569;
}

.footer p {
  color: #94A3B8;
  margin-bottom: 1rem;
}

.footer-links {
  display: flex;
  gap: 2rem;
  justify-content: center;
}

.footer-links a {
  color: #94A3B8;
  text-decoration: none;
  transition: color 0.3s;
}

.footer-links a:hover {
  color: #00BFFF;
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1.2rem;
  }

  .nav-links {
    flex-direction: column;
    gap: 1rem;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .footer-links {
    flex-direction: column;
    gap: 1rem;
  }
}