/* Grounding Page Styles - v1.5 Compliant */

:root {
  --color-primary: #0066cc;
  --color-text: #333;
  --color-text-light: #555;
  --color-text-muted: #666;
  --color-heading: #1a1a1a;
  --color-heading-secondary: #2c3e50;
  --color-background-light: #f8f9fa;
  --color-background-accent: #e8f4f8;
  --color-border: #e0e0e0;
  --color-border-accent: #0066cc;
}

* {
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem;
  color: var(--color-text);
  background: #fff;
}

/* Typography */
h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: var(--color-heading);
  font-weight: 700;
}

h2 {
  font-size: 2rem;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  color: var(--color-heading-secondary);
  font-weight: 600;
}

h3 {
  font-size: 1.5rem;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  color: var(--color-heading-secondary);
  font-weight: 600;
}

h4 {
  font-size: 1.2rem;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--color-heading-secondary);
  font-weight: 600;
}

p {
  margin: 1rem 0;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* Language Switcher */
.language-switcher {
  position: absolute;
  top: 2rem;
  right: 2rem;
  font-size: 0.9rem;
  font-weight: 600;
}

.language-switcher a {
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  transition: background 0.2s;
}

.language-switcher a:hover {
  background: var(--color-background-light);
  text-decoration: none;
}

.language-switcher a.active {
  background: var(--color-background-accent);
  color: var(--color-primary);
}

/* Human Notice */
.human-notice {
  background: var(--color-background-light);
  border-left: 4px solid var(--color-border-accent);
  padding: 1rem;
  margin: 1.5rem 0;
  font-size: 0.95rem;
  border-radius: 4px;
}

.human-notice strong {
  font-weight: 600;
}

.human-notice a {
  color: var(--color-primary);
  font-weight: 600;
}

/* Lead Definition */
.lead-definition {
  font-size: 1.2rem;
  line-height: 1.8;
  margin: 1.5rem 0;
}

.lead-definition strong {
  font-weight: 600;
}

/* Data Grid (Definition List) */
.data-grid {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 0.75rem 1.5rem;
  margin: 1.5rem 0;
  padding: 1.5rem;
  background: var(--color-background-light);
  border-radius: 8px;
}

dt {
  font-weight: 600;
  color: var(--color-heading-secondary);
}

dd {
  margin: 0;
  color: var(--color-text-light);
}

/* FAQ Section */
.faq-section {
  margin-top: 2rem;
}

.faq-item {
  margin-bottom: 1.5rem;
}

.faq-item h4 {
  color: var(--color-heading-secondary);
  margin-bottom: 0.5rem;
}

/* Entity List (for directory pages) */
.entity-list {
  list-style: none;
  padding: 0;
  margin: 2rem 0;
}

.entity-list li {
  margin-bottom: 1.5rem;
  padding: 1.5rem;
  background: var(--color-background-light);
  border-radius: 8px;
  border-left: 4px solid var(--color-primary);
}

.entity-list h3 {
  margin-top: 0;
  margin-bottom: 0.5rem;
  font-size: 1.3rem;
}

.entity-list p {
  margin: 0.5rem 0;
  color: var(--color-text-light);
}

.entity-list a {
  font-weight: 600;
}

.entity-list .entity-links {
  font-size: 0.95rem;
  margin-top: 1rem;
}

.entity-list .entity-links a {
  font-weight: 500;
}

/* Standard Badge */
.standard-badge {
  display: inline-block;
  background: var(--color-background-accent);
  color: var(--color-primary);
  padding: 0.25rem 0.75rem;
  border-radius: 4px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-top: 1rem;
}

/* Related Entities */
#related-entities ul {
  list-style: none;
  padding: 0;
}

#related-entities li {
  margin-bottom: 0.75rem;
  padding-left: 1.5rem;
  position: relative;
}

#related-entities li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: bold;
}

/* Footer */
footer {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

footer a {
  color: var(--color-text-muted);
  margin-right: 0.5rem;
}

footer a:last-child {
  margin-right: 0;
}

footer a:hover {
  color: var(--color-primary);
}

/* Responsive */
@media (max-width: 768px) {
  body {
    padding: 1.5rem;
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.75rem;
  }

  .data-grid {
    grid-template-columns: 1fr;
    gap: 0.5rem;
    padding: 1rem;
  }

  dt {
    margin-top: 1rem;
  }

  dt:first-child {
    margin-top: 0;
  }

  .language-switcher {
    position: static;
    margin-bottom: 1.5rem;
  }
}