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

:root {
  --color-primary: #1e3a8a;
  --color-primary-dark: #1e40af;
  --color-secondary: #334155;
  --color-text: #0f172a;
  --color-text-light: #475569;
  --color-background: #ffffff;
  --color-background-light: #f8fafc;
  --color-border: #e2e8f0;
  --color-accent: #3b82f6;
  --font-primary: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

body {
  font-family: var(--font-primary);
  color: var(--color-text);
  background-color: var(--color-background);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.header {
  background-color: var(--color-background);
  border-bottom: 1px solid var(--color-border);
  padding: 16px 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo a {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
}

.nav {
  display: flex;
  gap: 32px;
  align-items: center;
}

.nav a {
  color: var(--color-text);
  text-decoration: none;
  font-weight: 500;
  font-size: 15px;
  transition: color 0.2s;
}

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

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--color-text);
}

.btn-primary {
  background-color: var(--color-primary);
  color: white;
  border: none;
  padding: 12px 24px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  transition: background-color 0.2s, transform 0.1s;
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-large {
  padding: 16px 32px;
  font-size: 16px;
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  padding: 12px 24px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-secondary:hover {
  background-color: var(--color-primary);
  color: white;
  transform: translateY(-1px);
}

.hero {
  padding: 120px 0;
  background: linear-gradient(135deg, #f8fafc 0%, #e0e7ff 100%);
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.hero h1 {
  font-size: 48px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 24px;
  line-height: 1.2;
}

.hero p {
  font-size: 20px;
  color: var(--color-text-light);
  margin-bottom: 32px;
  line-height: 1.6;
}

.features {
  padding: 100px 0;
  background-color: var(--color-background);
}

.features h2 {
  font-size: 36px;
  font-weight: 700;
  color: var(--color-primary);
  text-align: center;
  margin-bottom: 64px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
}

.feature-card {
  padding: 32px;
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
}

.feature-card p {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.6;
}

.testimonials {
  padding: 100px 0;
  background-color: var(--color-background-light);
}

.testimonials h2 {
  font-size: 36px;
  font-weight: 700;
  color: var(--color-primary);
  text-align: center;
  margin-bottom: 64px;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
}

.testimonial-card {
  padding: 32px;
  background-color: var(--color-background);
  border-radius: 8px;
  box-shadow: var(--shadow-md);
}

.testimonial-card p {
  font-size: 16px;
  color: var(--color-text);
  line-height: 1.6;
  margin-bottom: 24px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.testimonial-author strong {
  font-weight: 600;
  color: var(--color-text);
}

.testimonial-author span {
  font-size: 14px;
  color: var(--color-text-light);
}

.pricing {
  padding: 100px 0;
  background-color: var(--color-background);
}

.pricing h2 {
  font-size: 36px;
  font-weight: 700;
  color: var(--color-primary);
  text-align: center;
  margin-bottom: 64px;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
  max-width: 1000px;
  margin: 0 auto;
}

.pricing-card {
  padding: 40px 32px;
  background-color: var(--color-background);
  border: 2px solid var(--color-border);
  border-radius: 12px;
  position: relative;
  transition: transform 0.2s, box-shadow 0.2s;
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.pricing-card-featured {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
}

.featured-badge {
  position: absolute;
  top: -12px;
  right: 32px;
  background-color: var(--color-primary);
  color: white;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
}

.pricing-card h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.pricing-description {
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: 24px;
  min-height: 40px;
}

.price {
  margin-bottom: 32px;
}

.price-amount {
  font-size: 48px;
  font-weight: 700;
  color: var(--color-primary);
}

.price-currency {
  font-size: 18px;
  color: var(--color-text-light);
  margin-left: 4px;
}

.pricing-features {
  list-style: none;
  margin-bottom: 32px;
}

.pricing-features li {
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 15px;
  color: var(--color-text);
}

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

.pricing-card button {
  width: 100%;
}

.cta {
  padding: 100px 0;
  background-color: var(--color-primary);
}

.cta-content {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}

.cta h2 {
  font-size: 40px;
  font-weight: 700;
  color: white;
  margin-bottom: 20px;
}

.cta p {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 32px;
}

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

.cta .btn-primary:hover {
  background-color: var(--color-background-light);
}

.footer {
  padding: 48px 0 32px;
  background-color: var(--color-secondary);
  color: white;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  font-size: 18px;
}

.footer-links {
  display: flex;
  gap: 32px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s;
}

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

.footer-bottom {
  text-align: center;
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
}

.legal-page {
  padding: 80px 0;
  background-color: var(--color-background);
}

.legal-content {
  max-width: 800px;
  margin: 0 auto;
}

.legal-content h1 {
  font-size: 40px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 40px;
}

.legal-content h2 {
  font-size: 24px;
  font-weight: 600;
  color: var(--color-text);
  margin-top: 40px;
  margin-bottom: 16px;
}

.legal-content p {
  font-size: 16px;
  color: var(--color-text);
  margin-bottom: 16px;
  line-height: 1.7;
}

.legal-content ul {
  margin-left: 24px;
  margin-bottom: 16px;
}

.legal-content li {
  font-size: 16px;
  color: var(--color-text);
  margin-bottom: 8px;
  line-height: 1.7;
}

.legal-content strong {
  font-weight: 600;
  color: var(--color-text);
}

.legal-date {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
  font-style: italic;
  color: var(--color-text-light);
}

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

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

  .hero {
    padding: 60px 0;
  }

  .hero h1 {
    font-size: 32px;
  }

  .hero p {
    font-size: 18px;
  }

  .features,
  .testimonials,
  .pricing,
  .cta {
    padding: 60px 0;
  }

  .features h2,
  .testimonials h2,
  .pricing h2 {
    font-size: 28px;
    margin-bottom: 40px;
  }

  .features-grid,
  .testimonials-grid,
  .pricing-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .cta h2 {
    font-size: 28px;
  }

  .cta p {
    font-size: 16px;
  }

  .footer-content {
    flex-direction: column;
    gap: 24px;
    text-align: center;
  }

  .footer-links {
    flex-direction: column;
    gap: 16px;
  }

  .legal-content h1 {
    font-size: 32px;
  }

  .legal-content h2 {
    font-size: 20px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .hero h1 {
    font-size: 28px;
  }

  .hero p {
    font-size: 16px;
  }

  .btn-large {
    padding: 14px 24px;
    font-size: 15px;
  }

  .feature-card,
  .testimonial-card,
  .pricing-card {
    padding: 24px;
  }
}