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

:root {
  --primary-color: #2563eb;
  --primary-dark: #1e40af;
  --secondary-color: #10b981;
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --bg-light: #f9fafb;
  --bg-white: #ffffff;
  --border-color: #e5e7eb;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background: linear-gradient(135deg, #f9fafb 0%, #e5e7eb 100%);
  min-height: 100vh;
  padding: 20px;
}

.container {
  max-width: 1000px;
  margin: 0 auto;
  background: var(--bg-white);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.header {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: white;
  padding: 60px 40px;
  text-align: center;
}

.main-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}

.subtitle {
  font-size: 1.125rem;
  opacity: 0.95;
  font-weight: 400;
}

.featured-domain {
  padding: 50px 40px;
  background: linear-gradient(to bottom, #ffffff 0%, #f9fafb 100%);
  border-bottom: 1px solid var(--border-color);
  position: relative;
}

.featured-badge {
  display: inline-block;
  background: var(--secondary-color);
  color: white;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: 20px;
}

.featured-title {
  font-size: 2.25rem;
  color: var(--primary-color);
  margin-bottom: 20px;
  font-weight: 700;
}

.featured-description {
  font-size: 1.125rem;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 30px;
  max-width: 800px;
}

.featured-details {
  display: flex;
  gap: 30px;
  flex-wrap: wrap;
  margin-bottom: 30px;
  padding: 20px;
  background: white;
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.detail-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.detail-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.detail-value {
  font-size: 1.125rem;
  color: var(--text-primary);
  font-weight: 600;
}

.status-available {
  color: var(--secondary-color);
}

.cta-button {
  display: inline-block;
  background: var(--primary-color);
  color: white;
  padding: 14px 32px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.cta-button:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(37, 99, 235, 0.4);
}

.other-domains {
  padding: 50px 40px;
}

.section-title {
  font-size: 1.875rem;
  margin-bottom: 30px;
  color: var(--text-primary);
  font-weight: 700;
}

.domain-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.domain-item {
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
  background: white;
  transition: all 0.3s ease;
}

.domain-item:hover {
  box-shadow: var(--shadow);
  border-color: var(--primary-color);
}

.domain-header {
  padding: 20px 24px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.2s ease;
}

.domain-header:hover {
  background: var(--bg-light);
}

.domain-name-wrapper {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.domain-name {
  font-size: 1.25rem;
  color: var(--text-primary);
  font-weight: 600;
}

.domain-category {
  font-size: 0.75rem;
  padding: 4px 12px;
  background: var(--bg-light);
  color: var(--text-secondary);
  border-radius: 12px;
  font-weight: 500;
}

.toggle-icon {
  font-size: 1.5rem;
  color: var(--text-secondary);
  font-weight: 300;
  transition: transform 0.3s ease;
  user-select: none;
}

.domain-item.active .toggle-icon {
  transform: rotate(45deg);
}

.domain-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  padding: 0 24px;
}

.domain-item.active .domain-content {
  max-height: 500px;
  padding: 0 24px 20px;
}

.domain-description {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}

.domain-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.meta-tag {
  font-size: 0.75rem;
  padding: 4px 10px;
  background: var(--primary-color);
  color: white;
  border-radius: 4px;
  font-weight: 500;
}

.contact {
  padding: 50px 40px;
  background: var(--bg-light);
  text-align: center;
}

.contact-text {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.contact-info {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.contact-link {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
  font-size: 1.125rem;
  transition: color 0.2s ease;
}

.contact-link:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

.contact-divider {
  color: var(--border-color);
}

.footer {
  padding: 24px 40px;
  background: var(--text-primary);
  color: white;
  text-align: center;
  font-size: 0.875rem;
}

@media (max-width: 768px) {
  body {
    padding: 10px;
  }

  .header {
    padding: 40px 24px;
  }

  .main-title {
    font-size: 1.875rem;
  }

  .subtitle {
    font-size: 1rem;
  }

  .featured-domain {
    padding: 30px 24px;
  }

  .featured-title {
    font-size: 1.75rem;
  }

  .featured-description {
    font-size: 1rem;
  }

  .featured-details {
    gap: 20px;
  }

  .other-domains {
    padding: 30px 24px;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .domain-header {
    padding: 16px 20px;
  }

  .domain-name {
    font-size: 1.125rem;
  }

  .contact {
    padding: 30px 24px;
  }

  .contact-info {
    flex-direction: column;
    gap: 12px;
  }

  .contact-divider {
    display: none;
  }
}