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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: #1a1a1a;
  line-height: 1.6;
  background: #ffffff;
}

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

.header {
  border-bottom: 1px solid #e5e5e5;
  padding: 20px 0;
  background: #ffffff;
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.logo {
  font-size: 20px;
  font-weight: 700;
  color: #0066cc;
}

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

.nav-link {
  text-decoration: none;
  color: #666;
  font-size: 15px;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-link:hover,
.nav-link.active {
  color: #0066cc;
}

.hero {
  padding: 80px 0;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.hero-content {
  max-width: 900px;
}

.badge {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 20px;
}

.badge.urgent {
  background: #fff3cd;
  color: #856404;
}

.badge.secondary {
  background: #d1ecf1;
  color: #0c5460;
}

h1 {
  font-size: 48px;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  color: #1a1a1a;
}

.hero-subtitle {
  font-size: 20px;
  color: #666;
  margin-bottom: 48px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 48px;
}

.stat {
  text-align: center;
}

.stat-value {
  font-size: 36px;
  font-weight: 700;
  color: #0066cc;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 14px;
  color: #666;
  font-weight: 500;
}

.section {
  padding: 80px 0;
}

.section.gray {
  background: #f8f9fa;
}

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

h2 {
  font-size: 32px;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 40px;
}

.status-indicator {
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
}

.status-indicator.blocked {
  background: #f8d7da;
  color: #721c24;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.card {
  background: #ffffff;
  border: 1px solid #e5e5e5;
  border-radius: 12px;
  padding: 24px;
  transition: box-shadow 0.2s;
}

.card:hover {
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.card-header h3 {
  font-size: 18px;
  font-weight: 600;
  color: #1a1a1a;
}

.status-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.status-dot.green {
  background: #28a745;
}

.status-dot.red {
  background: #dc3545;
}

.status-dot.yellow {
  background: #ffc107;
}

.metric-row {
  display: flex;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid #f0f0f0;
}

.metric-row:last-child {
  border-bottom: none;
}

.metric-label {
  font-size: 14px;
  color: #666;
}

.metric-value {
  font-size: 14px;
  font-weight: 600;
  color: #1a1a1a;
}

.metric-value.error {
  color: #dc3545;
}

.issue-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 32px;
}

.issue-card {
  background: #ffffff;
  border-left: 4px solid #666;
  border-radius: 8px;
  padding: 24px;
}

.issue-card.critical {
  border-left-color: #dc3545;
}

.issue-card.high {
  border-left-color: #ffc107;
}

.issue-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 12px;
}

.issue-badge {
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
}

.issue-badge.critical {
  background: #f8d7da;
  color: #721c24;
}

.issue-badge.high {
  background: #fff3cd;
  color: #856404;
}

.issue-id {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: #666;
}

.issue-card h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.issue-card p {
  color: #666;
  margin-bottom: 16px;
  line-height: 1.6;
}

.issue-meta {
  display: flex;
  gap: 24px;
  font-size: 13px;
  color: #999;
}

.timeline {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 32px;
}

.timeline-date {
  font-weight: 600;
  color: #0066cc;
  font-size: 15px;
}

.timeline-content h4 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 8px;
}

.timeline-content p {
  color: #666;
  margin-bottom: 12px;
}

.link-arrow {
  color: #0066cc;
  text-decoration: none;
  font-weight: 500;
  font-size: 14px;
}

.link-arrow:hover {
  text-decoration: underline;
}

.btn-secondary {
  display: inline-block;
  padding: 12px 24px;
  background: #ffffff;
  border: 2px solid #0066cc;
  color: #0066cc;
  text-decoration: none;
  border-radius: 8px;
  font-weight: 600;
  transition: all 0.2s;
}

.btn-secondary:hover {
  background: #0066cc;
  color: #ffffff;
}

.btn-primary {
  display: inline-block;
  padding: 12px 24px;
  background: #0066cc;
  color: #ffffff;
  text-decoration: none;
  border-radius: 8px;
  font-weight: 600;
  transition: background 0.2s;
}

.btn-primary:hover {
  background: #0052a3;
}

.hero-small {
  padding: 60px 0 40px;
  background: #f8f9fa;
}

.breadcrumb {
  display: inline-block;
  color: #666;
  text-decoration: none;
  font-size: 14px;
  margin-bottom: 16px;
}

.breadcrumb:hover {
  color: #0066cc;
}

.subtitle {
  font-size: 18px;
  color: #666;
  margin-top: 12px;
}

.split-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.split-content h2 {
  margin-top: 16px;
  margin-bottom: 20px;
}

.feature-list {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.feature-item {
  display: flex;
  gap: 16px;
}

.feature-icon {
  font-size: 24px;
  flex-shrink: 0;
}

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

.feature-item p {
  font-size: 14px;
  color: #666;
}

.spec-row {
  display: flex;
  justify-content: space-between;
  padding: 14px 0;
  border-bottom: 1px solid #f0f0f0;
}

.spec-row:last-child {
  border-bottom: none;
}

.spec-label {
  font-size: 14px;
  color: #666;
}

.spec-value {
  font-size: 14px;
  font-weight: 600;
  color: #1a1a1a;
  font-family: 'JetBrains Mono', monospace;
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.preview-card {
  background: #ffffff;
  border: 1px solid #e5e5e5;
  border-radius: 12px;
  overflow: hidden;
}

.preview-image {
  height: 200px;
  background: #e9ecef;
  display: flex;
  align-items: center;
  justify-content: center;
}

.preview-placeholder {
  color: #999;
  font-size: 14px;
  font-weight: 500;
}

.preview-card h4 {
  font-size: 16px;
  font-weight: 600;
  padding: 16px 20px 8px;
}

.preview-card p {
  font-size: 14px;
  color: #666;
  padding: 0 20px 20px;
}

.implementation-steps {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-bottom: 48px;
}

.step {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 24px;
  padding: 24px;
  background: #ffffff;
  border: 1px solid #e5e5e5;
  border-radius: 12px;
}

.step-number {
  font-size: 32px;
  font-weight: 700;
  color: #0066cc;
}

.step-content h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.step-content p {
  color: #666;
  font-size: 15px;
  margin-bottom: 12px;
}

.step-duration {
  display: inline-block;
  padding: 4px 10px;
  background: #f8f9fa;
  border-radius: 4px;
  font-size: 13px;
  color: #666;
  font-weight: 500;
}

.cta-box {
  background: linear-gradient(135deg, #0066cc 0%, #0052a3 100%);
  color: #ffffff;
  padding: 40px;
  border-radius: 12px;
  text-align: center;
}

.cta-box h3 {
  font-size: 24px;
  margin-bottom: 12px;
  color: #ffffff;
}

.cta-box p {
  font-size: 16px;
  opacity: 0.9;
  margin-bottom: 24px;
}

.alert-box {
  background: #fff3cd;
  border-left: 4px solid #ffc107;
  padding: 24px;
  border-radius: 8px;
  margin-bottom: 40px;
}

.alert-box h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  color: #856404;
}

.alert-box p {
  color: #856404;
  font-size: 15px;
}

.optimization-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 32px;
}

.optimization-card {
  background: #ffffff;
  border: 1px solid #e5e5e5;
  border-radius: 12px;
  padding: 24px;
}

.optimization-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.optimization-type {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  color: #0066cc;
  letter-spacing: 0.5px;
}

.optimization-count {
  font-size: 13px;
  color: #999;
}

.optimization-card h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
}

.optimization-card p {
  font-size: 14px;
  color: #666;
  margin-bottom: 20px;
  line-height: 1.6;
}

.code-example {
  background: #f8f9fa;
  border-radius: 6px;
  padding: 12px;
  margin-bottom: 12px;
}

.code-example:last-child {
  margin-bottom: 0;
}

.code-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  color: #999;
  margin-bottom: 6px;
  letter-spacing: 0.5px;
}

code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: #1a1a1a;
  display: block;
  line-height: 1.5;
}

.approach-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.approach-item {
  background: #ffffff;
  border: 1px solid #e5e5e5;
  border-radius: 12px;
  padding: 24px;
}

.approach-item h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
}

.approach-item p {
  font-size: 14px;
  color: #666;
  line-height: 1.6;
}

.metrics-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.metric-box {
  background: #ffffff;
  border: 1px solid #e5e5e5;
  border-radius: 12px;
  padding: 32px;
  text-align: center;
}

.metric-number {
  font-size: 48px;
  font-weight: 700;
  color: #0066cc;
  margin-bottom: 8px;
}

.metric-text {
  font-size: 14px;
  color: #666;
  font-weight: 500;
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.benefit-card {
  background: #ffffff;
  border: 1px solid #e5e5e5;
  border-radius: 12px;
  padding: 24px;
}

.benefit-card h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
}

.benefit-card p {
  font-size: 14px;
  color: #666;
  line-height: 1.6;
}

.footer {
  border-top: 1px solid #e5e5e5;
  padding: 32px 0;
  text-align: center;
  background: #f8f9fa;
}

.footer p {
  font-size: 14px;
  color: #999;
}

@media (max-width: 768px) {
  .hero-stats,
  .card-grid,
  .preview-grid,
  .optimization-grid,
  .benefits-grid {
    grid-template-columns: 1fr;
  }
  .split-layout,
  .approach-list,
  .metrics-row {
    grid-template-columns: 1fr;
  }
  h1 {
    font-size: 36px;
  }
  .nav {
    flex-direction: column;
    gap: 12px;
  }
  .timeline-item {
    grid-template-columns: 1fr;
    gap: 12px;
  }
}