:root {
  --primary: #0066cc;
  --primary-dark: #004c99;
  --primary-light: #e6f0fa;
  --secondary: #003366;
  --text: #333333;
  --text-light: #666666;
  --white: #ffffff;
  --bg-light: #f5f7fa;
  --border: #e0e6ed;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background: var(--white);
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--primary-dark);
}

.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--primary);
}

.logo:hover {
  color: var(--primary-dark);
}

.main-nav {
  display: flex;
  gap: 30px;
}

.main-nav a {
  color: var(--text);
  font-weight: 500;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--primary);
}

main {
  min-height: calc(100vh - 280px);
}

.hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: var(--white);
  padding: 100px 0;
  text-align: center;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 20px;
  font-weight: 700;
}

.hero p {
  font-size: 1.3rem;
  opacity: 0.95;
  max-width: 600px;
  margin: 0 auto 30px;
}

.btn {
  display: inline-block;
  padding: 14px 32px;
  background: var(--white);
  color: var(--primary);
  font-weight: 600;
  border-radius: 6px;
  transition: all 0.2s;
}

.btn:hover {
  background: var(--primary-light);
  color: var(--primary-dark);
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--primary);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--primary-dark);
  color: var(--white);
}

.section {
  padding: 80px 0;
}

.section-dark {
  background: var(--bg-light);
}

.section-title {
  text-align: center;
  font-size: 2.2rem;
  color: var(--secondary);
  margin-bottom: 50px;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.service-card {
  background: var(--white);
  padding: 30px;
  border-radius: 8px;
  border: 1px solid var(--border);
  transition: all 0.3s;
}

.service-card:hover {
  border-color: var(--primary);
  box-shadow: 0 8px 30px rgba(0, 102, 204, 0.1);
  transform: translateY(-4px);
}

.service-card h3 {
  color: var(--primary);
  margin-bottom: 15px;
  font-size: 1.3rem;
}

.service-card p {
  color: var(--text-light);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  text-align: center;
}

.why-item {
  padding: 20px;
}

.why-icon {
  font-size: 2.5rem;
  margin-bottom: 15px;
}

.why-item h3 {
  color: var(--secondary);
  margin-bottom: 10px;
}

.why-item p {
  color: var(--text-light);
}

.page-header {
  background: var(--primary-light);
  padding: 60px 0;
  text-align: center;
}

.page-header h1 {
  font-size: 2.5rem;
  color: var(--secondary);
  margin-bottom: 10px;
}

.page-header p {
  color: var(--text-light);
  font-size: 1.1rem;
}

.page-content {
  padding: 60px 0;
}

.page-content h2 {
  color: var(--secondary);
  margin: 40px 0 20px;
  font-size: 1.8rem;
}

.page-content h3 {
  color: var(--primary);
  margin: 30px 0 15px;
  font-size: 1.3rem;
}

.page-content p {
  margin-bottom: 20px;
  color: var(--text);
}

.page-content ul, .page-content ol {
  margin: 0 0 20px 30px;
}

.page-content li {
  margin-bottom: 10px;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 50px;
  margin-top: 40px;
}

.contact-card {
  text-align: center;
  padding: 40px;
  background: var(--bg-light);
  border-radius: 8px;
}

.contact-card h3 {
  color: var(--secondary);
  margin-bottom: 15px;
  font-size: 1.3rem;
}

.contact-card p {
  color: var(--text-light);
  margin-bottom: 10px;
}

.contact-card a {
  font-size: 1.2rem;
  font-weight: 600;
}

.site-footer {
  background: var(--secondary);
  color: var(--white);
  padding: 50px 0 20px;
  margin-top: auto;
}

.footer-inner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  margin-bottom: 30px;
}

.footer-logo {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.tagline {
  opacity: 0.8;
}

.footer-contact a {
  color: var(--white);
  opacity: 0.9;
}

.footer-contact a:hover {
  opacity: 1;
}

.footer-contact p {
  margin-bottom: 8px;
}

.footer-copyright {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.9rem;
  opacity: 0.7;
}

@media (max-width: 768px) {
  .hero h1 {
    font-size: 2rem;
  }
  
  .hero p {
    font-size: 1.1rem;
  }
  
  .header-inner {
    flex-direction: column;
    gap: 20px;
  }
  
  .main-nav {
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .section {
    padding: 50px 0;
  }
  
  .section-title {
    font-size: 1.8rem;
  }
}