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

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell",
    sans-serif;
  color: #1f2937;
  background-color: #ffffff;
  line-height: 1.6;
}

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

.header {
  background-color: #ffffff;
  border-bottom: 1px solid #e5e7eb;
  padding: 20px 0;
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 24px;
  color: #1e3a8a;
}

.logo a {
  color: #1e3a8a;
  text-decoration: none;
}

.nav {
  display: flex;
  gap: 32px;
}

.nav a {
  color: #4b5563;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
}

.nav a:hover {
  color: #1e3a8a;
}

.btn-primary {
  background-color: #1e3a8a;
  color: #ffffff;
  border: none;
  padding: 12px 24px;
  font-size: 16px;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.3s;
}

.btn-primary:hover {
  background-color: #1e40af;
}

.btn-large {
  padding: 16px 32px;
  font-size: 18px;
}

.btn-secondary {
  background-color: transparent;
  color: #1e3a8a;
  border: 2px solid #1e3a8a;
  padding: 12px 24px;
  font-size: 16px;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s;
}

.btn-secondary:hover {
  background-color: #1e3a8a;
  color: #ffffff;
}

.hero {
  background-color: #f9fafb;
  padding: 120px 0;
  text-align: center;
}

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

.hero h1 {
  font-size: 48px;
  font-weight: 800;
  color: #111827;
  margin-bottom: 24px;
  line-height: 1.2;
}

.hero p {
  font-size: 20px;
  color: #4b5563;
  margin-bottom: 40px;
  line-height: 1.6;
}

.features {
  padding: 100px 0;
}

.features h2 {
  font-size: 40px;
  font-weight: 800;
  color: #111827;
  text-align: center;
  margin-bottom: 60px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 40px;
}

.feature-card {
  text-align: center;
}

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

.feature-card h3 {
  font-size: 24px;
  font-weight: 700;
  color: #111827;
  margin-bottom: 12px;
}

.feature-card p {
  color: #6b7280;
  font-size: 16px;
  line-height: 1.6;
}

.testimonials {
  background-color: #f9fafb;
  padding: 100px 0;
}

.testimonials h2 {
  font-size: 40px;
  font-weight: 800;
  color: #111827;
  text-align: center;
  margin-bottom: 60px;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 40px;
}

.testimonial-card {
  background-color: #ffffff;
  padding: 32px;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.testimonial-text {
  color: #4b5563;
  font-size: 16px;
  line-height: 1.6;
  margin-bottom: 24px;
}

.testimonial-author strong {
  display: block;
  color: #111827;
  font-weight: 600;
  margin-bottom: 4px;
}

.testimonial-author span {
  color: #6b7280;
  font-size: 14px;
}

.pricing {
  padding: 100px 0;
}

.pricing h2 {
  font-size: 40px;
  font-weight: 800;
  color: #111827;
  text-align: center;
  margin-bottom: 60px;
}

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

.pricing-card {
  background-color: #ffffff;
  border: 2px solid #e5e7eb;
  border-radius: 12px;
  padding: 40px;
  text-align: center;
  position: relative;
  transition: transform 0.3s, box-shadow 0.3s;
}

.pricing-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.pricing-card.featured {
  border-color: #1e3a8a;
  border-width: 3px;
}

.badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background-color: #1e3a8a;
  color: #ffffff;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 600;
}

.pricing-card h3 {
  font-size: 28px;
  font-weight: 700;
  color: #111827;
  margin-bottom: 16px;
}

.price {
  margin-bottom: 16px;
}

.price .amount {
  font-size: 48px;
  font-weight: 800;
  color: #1e3a8a;
}

.price .currency {
  font-size: 18px;
  color: #6b7280;
  margin-left: 4px;
}

.plan-description {
  color: #6b7280;
  font-size: 16px;
  margin-bottom: 32px;
  min-height: 48px;
}

.plan-features {
  list-style: none;
  text-align: left;
  margin-bottom: 32px;
}

.plan-features li {
  color: #4b5563;
  padding: 12px 0;
  border-bottom: 1px solid #e5e7eb;
}

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

.footer {
  background-color: #111827;
  color: #ffffff;
  padding: 60px 0 40px;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 40px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 20px;
}

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

.footer-links a {
  color: #d1d5db;
  text-decoration: none;
  transition: color 0.3s;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 40px;
  border-top: 1px solid #374151;
}

.footer-bottom p {
  color: #9ca3af;
  font-size: 14px;
}

.content-page {
  padding: 80px 0;
  max-width: 900px;
  margin: 0 auto;
}

.content-page h1 {
  font-size: 42px;
  font-weight: 800;
  color: #111827;
  margin-bottom: 40px;
}

.content-page h2 {
  font-size: 28px;
  font-weight: 700;
  color: #1e3a8a;
  margin-top: 40px;
  margin-bottom: 16px;
}

.content-page p {
  color: #4b5563;
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 16px;
}

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

.content-page ul li {
  color: #4b5563;
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 8px;
}

.update-date {
  margin-top: 60px;
  padding-top: 24px;
  border-top: 1px solid #e5e7eb;
  color: #6b7280;
  font-style: italic;
}

@media (max-width: 768px) {
  .header-content {
    flex-wrap: wrap;
  }

  .nav {
    order: 3;
    width: 100%;
    justify-content: center;
    margin-top: 16px;
    gap: 16px;
  }

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

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

  .features h2,
  .testimonials h2,
  .pricing h2 {
    font-size: 32px;
  }

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

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

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

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

  .content-page h2 {
    font-size: 24px;
  }
}