/* Reset and base styles */
* {
  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: #111827;
  background-color: #FFFFFF;
}

/* Header styles */
header {
  background: linear-gradient(135deg, #00A651 0%, #008A44 100%);
  color: white;
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

nav {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
}

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

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

/* Main content */
main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Hero section */
.hero {
  text-align: center;
  padding: 4rem 0;
  background: linear-gradient(135deg, #F9FAFB 0%, #FFFFFF 100%);
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
  color: #111827;
}

.hero p {
  font-size: 1.2rem;
  color: #6B7280;
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.download-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s;
  border: none;
  cursor: pointer;
}

.btn-primary {
  background-color: #00A651;
  color: white;
}

.btn-primary:hover {
  background-color: #008A44;
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: #F3F4F6;
  color: #374151;
  border: 1px solid #E5E7EB;
}

.btn-secondary:hover {
  background-color: #E5E7EB;
}

/* Features section */
.features {
  padding: 4rem 0;
}

.features h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 3rem;
  color: #111827;
}

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

.feature-card {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  text-align: center;
  transition: transform 0.3s;
}

.feature-card:hover {
  transform: translateY(-5px);
}

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

.feature-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: #111827;
}

.feature-card p {
  color: #6B7280;
}

/* Content pages */
.content-page {
  padding: 2rem 0;
  max-width: 800px;
  margin: 0 auto;
}

.content-page h1 {
  font-size: 2.5rem;
  margin-bottom: 2rem;
  color: #111827;
  text-align: center;
}

.content-page h2 {
  font-size: 1.5rem;
  margin: 2rem 0 1rem 0;
  color: #00A651;
}

.content-page p {
  margin-bottom: 1rem;
  color: #374151;
  line-height: 1.8;
}

.content-page ul {
  margin: 1rem 0;
  padding-left: 2rem;
}

.content-page li {
  margin-bottom: 0.5rem;
  color: #374151;
}

/* Footer */
footer {
  background-color: #111827;
  color: white;
  text-align: center;
  padding: 2rem 0;
  margin-top: 4rem;
}

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

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.footer-links a {
  color: #9CA3AF;
  text-decoration: none;
  transition: color 0.3s;
}

.footer-links a:hover {
  color: white;
}

/* Responsive design */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  .hero p {
    font-size: 1rem;
  }
  
  .download-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .features h2 {
    font-size: 2rem;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-links {
    flex-direction: column;
    gap: 1rem;
  }
}

/* Utility classes */
.text-center {
  text-align: center;
}

.mt-2 {
  margin-top: 2rem;
}

.mb-2 {
  margin-bottom: 2rem;
}

.last-updated {
  font-style: italic;
  color: #6B7280;
  text-align: center;
  margin-top: 2rem;
  font-size: 0.9rem;
}