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

body {
  font-family:
    -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu,
    Cantarell, sans-serif;
  background: #ffffff;
  min-height: 100vh;
  color: #4a5568;
}

.header {
  background: #f7fafc;
  border-bottom: 1px solid #e2e8f0;
  padding: 20px 40px;
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

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

.logo img {
  height: 40px;
  width: auto;
  aspect-ratio: 199 / 36;
}

.main-nav {
  display: flex;
  gap: 8px;
}

.main-nav a {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  color: #4a5568;
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  border-bottom: 3px solid transparent;
  transition: all 0.2s ease;
}

.main-nav a:hover {
  color: #2d3748;
  border-bottom-color: #ffd4b8;
}

.main-nav a:focus-visible {
  outline: 2px solid #ff6900;
  outline-offset: 2px;
  border-radius: 4px;
}

.main-nav a[aria-current='page'] {
  color: #2d3748;
  font-weight: 600;
  border-bottom-color: #ff6900;
}

h1 {
  color: #4a5568;
  font-size: 2.5rem;
  font-weight: 400;
  text-align: center;
  margin: 60px 0 80px 0;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
}

.section-title {
  color: #4a5568;
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 30px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin-bottom: 60px;
}

.link-card,
.info-card {
  display: block;
  padding: 24px;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-bottom: 4px solid #ff6900;
  text-decoration: none;
  transition: all 0.2s ease;
  position: relative;
}

.link-card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  transform: translateY(-2px);
  border-bottom-color: #e65c00;
}

.link-card h2,
.info-card h2 {
  color: #2d3748;
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.link-card h2 {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.link-card h2::after {
  content: '→';
  font-size: 1.5rem;
  color: #cbd5e0;
  transition: transform 0.2s ease;
}

.link-card:hover h2::after {
  transform: translateX(4px);
  color: #ff6900;
}

.link-card p,
.info-card p {
  color: #718096;
  font-size: 0.95rem;
  line-height: 1.6;
}

.footer {
  margin-top: 80px;
  padding: 40px 0;
  border-top: 1px solid #e2e8f0;
  text-align: center;
  color: #a0aec0;
  font-size: 0.9rem;
}

.footer a {
  color: #4a5568;
  text-decoration: none;
}

.footer a:hover {
  color: #ff6900;
  text-decoration: underline;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.intro {
  max-width: 800px;
  margin: 0 auto 60px auto;
  text-align: center;
  color: #4a5568;
  font-size: 1.1rem;
  line-height: 1.8;
}

.accent-link {
  color: #ff6900;
  text-decoration: none;
  border-bottom: 1px solid #ffd4b8;
}

.accent-link.bold {
  font-weight: 500;
}

.info-card ul {
  color: #718096;
  font-size: 0.95rem;
  line-height: 1.6;
  margin-left: 20px;
}

.warning-box {
  background: #fffbeb;
  border-left: 4px solid #f59e0b;
  padding: 20px 24px;
  margin-bottom: 60px;
  color: #78350f;
  font-size: 0.95rem;
  line-height: 1.6;
}

.compliance-box {
  background: #f7fafc;
  border-left: 4px solid #ff6900;
  padding: 24px;
  margin-bottom: 60px;
  color: #4a5568;
}

.compliance-box p {
  margin-bottom: 12px;
  font-size: 0.95rem;
  line-height: 1.6;
}

.compliance-box p:last-child {
  margin-bottom: 0;
}

.resource-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 16px;
  margin-bottom: 60px;
}

.resource-box {
  padding: 16px;
  background: #ffffff;
  border: 1px solid #e2e8f0;
}

.resource-box h3 {
  color: #2d3748;
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.resource-box ul {
  list-style: none;
  padding: 0;
}

.resource-box li {
  margin-bottom: 8px;
}

.resource-box li:last-child {
  margin-bottom: 0;
}

.resource-box a {
  color: #4a5568;
  text-decoration: none;
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .header {
    padding: 16px 20px;
  }

  .container {
    padding: 0 20px;
  }

  h1 {
    font-size: 1.75rem;
    margin: 40px 0 50px 0;
  }

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

  .main-nav {
    flex-basis: 100%;
    justify-content: center;
    gap: 4px;
  }

  .main-nav a {
    padding: 10px 12px;
    font-size: 0.9rem;
  }
}