/* Custom styles for GitHub Learning Room HTML documentation */

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", Helvetica, Arial, sans-serif;
  line-height: 1.6;
  background-color: #ffffff;
  color: #24292f;
}

.breadcrumb {
  max-width: 980px;
  margin: 0 auto;
  padding: 1rem 45px 0;
  font-size: 0.875rem;
  color: #57606a;
}

.breadcrumb a {
  color: #0969da;
  text-decoration: none;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

/* Improve focus visibility for keyboard navigation */
a:focus,
button:focus,
summary:focus {
  outline: 2px solid #0969da;
  outline-offset: 2px;
}

/* Skip to main content link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: #0969da;
  color: #ffffff;
  padding: 8px 16px;
  z-index: 100;
  text-decoration: none;
  font-weight: 600;
  border-radius: 0 0 4px 0;
}

.skip-link:focus {
  top: 0;
  outline: 2px solid #ffffff;
  outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  body {
    background-color: #000000;
    color: #ffffff;
  }
  .markdown-body {
    color: #ffffff;
  }
  .skip-link {
    background: #ffffff;
    color: #000000;
  }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
  body {
    background-color: #0d1117;
    color: #e6edf3;
  }
  .markdown-body {
    color: #e6edf3;
  }
  .breadcrumb {
    color: #8b949e;
  }
  .breadcrumb a {
    color: #58a6ff;
  }
  footer {
    border-color: #30363d !important;
    color: #8b949e;
  }
  footer a {
    color: #58a6ff;
  }
}

/* Ensure tables are responsive */
.markdown-body table {
  display: block;
  overflow-x: auto;
  max-width: 100%;
  white-space: normal;
}

/* details/summary styling for collapsible blocks */
.markdown-body details {
  border: 1px solid #d0d7de;
  border-radius: 6px;
  padding: 0.5rem 1rem;
  margin: 0.75rem 0;
}

.markdown-body details[open] {
  padding-bottom: 0.75rem;
}

.markdown-body summary {
  cursor: pointer;
  font-weight: 600;
  padding: 0.25rem 0;
  user-select: none;
  list-style: none;
}

.markdown-body summary::-webkit-details-marker {
  display: none;
}

.markdown-body summary::before {
  content: '';
  font-size: 0.75em;
  vertical-align: middle;
}

.markdown-body details[open] > summary::before {
  content: '▼ ';
}

/* Print styles */
@media print {
  .breadcrumb,
  footer,
  .skip-link {
    display: none;
  }
  .markdown-body details {
    border: none;
    padding: 0;
  }
  .markdown-body details > * {
    display: block;
  }
  .markdown-body summary::before {
    display: none;
  }
}