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

:root {
  --color-background: #000000;
  --color-foreground: #ffffff;
  --color-muted: #666666;
  --color-border: #1a1a1a;
  --color-accent: #ffffff;
  --color-accent-hover: #e5e5e5;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", sans-serif;
  background-color: var(--color-background);
  color: var(--color-foreground);
  line-height: 1.6;
  overflow-x: hidden;
}

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

header {
  padding: 24px 0;
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  background-color: var(--color-background);
  z-index: 100;
}

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

.logo {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-foreground);
  text-decoration: none;
  letter-spacing: -0.5px;
}

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

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

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

.btn {
  padding: 12px 24px;
  border-radius: 6px;
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  transition: all 0.2s;
  display: inline-block;
  border: none;
  cursor: pointer;
}

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

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

.btn-secondary {
  background-color: transparent;
  color: var(--color-foreground);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-foreground);
}

.hero {
  padding: 120px 0;
  text-align: center;
}

.hero h1 {
  font-size: 72px;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 32px;
  letter-spacing: -2px;
}

.hero p {
  font-size: 20px;
  color: var(--color-muted);
  max-width: 700px;
  margin: 0 auto 48px;
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.stats {
  padding: 80px 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 48px;
}

.stat-item h3 {
  font-size: 48px;
  font-weight: 700;
  margin-bottom: 8px;
}

.stat-item p {
  color: var(--color-muted);
  font-size: 16px;
}

.features {
  padding: 120px 0;
}

.section-title {
  font-size: 48px;
  font-weight: 700;
  margin-bottom: 64px;
  text-align: center;
  letter-spacing: -1px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 48px;
}

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

.feature-card:hover {
  border-color: var(--color-muted);
}

.feature-icon {
  font-size: 32px;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 24px;
  margin-bottom: 12px;
  font-weight: 600;
}

.feature-card p {
  color: var(--color-muted);
  line-height: 1.6;
}

.testimonials {
  padding: 120px 0;
  background-color: #0a0a0a;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 32px;
}

.testimonial-card {
  padding: 32px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
}

.testimonial-text {
  font-size: 18px;
  line-height: 1.6;
  margin-bottom: 24px;
  color: var(--color-foreground);
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.author-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--color-border);
}

.author-info h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.author-info p {
  font-size: 14px;
  color: var(--color-muted);
}

.pricing {
  padding: 120px 0;
}

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

.pricing-card {
  padding: 48px 32px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  text-align: center;
  transition: border-color 0.2s;
}

.pricing-card:hover {
  border-color: var(--color-foreground);
}

.pricing-card.featured {
  border-color: var(--color-foreground);
  position: relative;
}

.pricing-card h3 {
  font-size: 24px;
  margin-bottom: 16px;
  font-weight: 600;
}

.price {
  font-size: 56px;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -2px;
}

.price-period {
  color: var(--color-muted);
  font-size: 16px;
  margin-bottom: 32px;
}

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

.features-list li {
  padding: 12px 0;
  color: var(--color-muted);
  border-bottom: 1px solid var(--color-border);
}

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

footer {
  padding: 48px 0;
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
}

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

.footer-links a {
  color: var(--color-muted);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--color-foreground);
}

.copyright {
  color: var(--color-muted);
  font-size: 14px;
}

.legal-page {
  padding: 80px 0;
  max-width: 800px;
  margin: 0 auto;
}

.legal-page h1 {
  font-size: 48px;
  margin-bottom: 32px;
  font-weight: 700;
}

.legal-page h2 {
  font-size: 32px;
  margin-top: 48px;
  margin-bottom: 16px;
  font-weight: 600;
}

.legal-page p {
  color: var(--color-muted);
  margin-bottom: 16px;
  line-height: 1.8;
}

.legal-page ul {
  color: var(--color-muted);
  margin-left: 24px;
  margin-bottom: 16px;
}

.legal-page li {
  margin-bottom: 8px;
}

@media (max-width: 768px) {
  .hero h1 {
    font-size: 48px;
  }

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

  .section-title {
    font-size: 36px;
  }

  nav {
    display: none;
  }

  .stats-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

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

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

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