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

:root {
  --primary-blue: #1a3a52;
  --secondary-blue: #2c5f7e;
  --accent-blue: #3d7fa6;
  --dark-gray: #2d3748;
  --light-gray: #f7fafc;
  --white: #ffffff;
  --text-primary: #1a202c;
  --text-secondary: #4a5568;
  --border-color: #e2e8f0;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--white);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

header {
  background: var(--white);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-blue);
  text-decoration: none;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--primary-blue);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.5rem;
}

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

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

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
}

.nav-links a:hover {
  color: var(--primary-blue);
}

.btn-primary {
  background: var(--primary-blue);
  color: var(--white);
  padding: 0.75rem 1.5rem;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  transition: background 0.3s;
  border: none;
  cursor: pointer;
  display: inline-block;
}

.btn-primary:hover {
  background: var(--secondary-blue);
}

.btn-secondary {
  background: var(--white);
  color: var(--primary-blue);
  padding: 0.75rem 1.5rem;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s;
  border: 2px solid var(--primary-blue);
  cursor: pointer;
  display: inline-block;
}

.btn-secondary:hover {
  background: var(--light-gray);
}

.hero {
  background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
  padding: 6rem 0;
  text-align: center;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 700;
  color: var(--primary-blue);
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto 2rem;
}

.features {
  padding: 5rem 0;
  background: var(--white);
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-blue);
  margin-bottom: 3rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.feature-card {
  background: var(--light-gray);
  padding: 2rem;
  border-radius: 12px;
  text-align: center;
  transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.feature-icon {
  width: 60px;
  height: 60px;
  background: var(--primary-blue);
  color: var(--white);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin: 0 auto 1.5rem;
}

.feature-card h3 {
  font-size: 1.5rem;
  color: var(--primary-blue);
  margin-bottom: 1rem;
}

.feature-card p {
  color: var(--text-secondary);
  line-height: 1.7;
}

.testimonials {
  padding: 5rem 0;
  background: var(--light-gray);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.testimonial-card {
  background: var(--white);
  padding: 2rem;
  border-radius: 12px;
  border-left: 4px solid var(--primary-blue);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.testimonial-quote {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1.5rem;
  font-style: italic;
}

.testimonial-author {
  font-weight: 600;
  color: var(--primary-blue);
}

.testimonial-role {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.pricing {
  padding: 5rem 0;
  background: var(--white);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.pricing-card {
  background: var(--white);
  border: 2px solid var(--border-color);
  border-radius: 12px;
  padding: 2.5rem;
  text-align: center;
  transition: transform 0.3s, box-shadow 0.3s;
}

.pricing-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
  border-color: var(--primary-blue);
}

.pricing-card.featured {
  border-color: var(--primary-blue);
  border-width: 3px;
  position: relative;
}

.featured-badge {
  position: absolute;
  top: -15px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary-blue);
  color: var(--white);
  padding: 0.5rem 1.5rem;
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 600;
}

.pricing-card h3 {
  font-size: 1.75rem;
  color: var(--primary-blue);
  margin-bottom: 1rem;
}

.pricing-price {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.pricing-period {
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.pricing-features {
  list-style: none;
  margin: 2rem 0;
  text-align: left;
}

.pricing-features li {
  padding: 0.75rem 0;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
}

.pricing-features li:last-child {
  border-bottom: none;
}

.pricing-features li::before {
  content: "✓";
  color: var(--primary-blue);
  font-weight: 700;
  margin-right: 0.75rem;
}

footer {
  background: var(--primary-blue);
  color: var(--white);
  padding: 2rem 0;
  text-align: center;
}

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

.footer-links a {
  color: var(--white);
  text-decoration: none;
  transition: opacity 0.3s;
}

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

.footer-copyright {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.9rem;
}

.content-page {
  padding: 4rem 0;
  max-width: 900px;
  margin: 0 auto;
}

.content-page h1 {
  font-size: 2.5rem;
  color: var(--primary-blue);
  margin-bottom: 2rem;
}

.content-page h2 {
  font-size: 1.75rem;
  color: var(--primary-blue);
  margin-top: 2.5rem;
  margin-bottom: 1rem;
}

.content-page p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.content-page ul {
  margin-left: 2rem;
  margin-bottom: 1.5rem;
}

.content-page li {
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--primary-blue);
  cursor: pointer;
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .mobile-menu-btn {
    display: block;
  }

  nav {
    gap: 1rem;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .features-grid,
  .testimonials-grid,
  .pricing-grid {
    grid-template-columns: 1fr;
  }

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