/* Readability enhancements */

/* ========================================
   Collapsible Sections (Details/Summary)
   ======================================== */

/* Details container base styles */
article details,
.prose details,
.md-typeset details {
  margin: 1.5rem 0;
  padding: 0;
  border: 1px solid var(--border, #e5e7eb);
  border-radius: 0.5rem;
  background: var(--card, #ffffff);
  overflow: hidden;
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.05);
}

/* Dark mode support */
.dark article details,
.dark .prose details,
.dark .md-typeset details {
  background: var(--card, #1f2937);
  border-color: var(--border, #374151);
}

/* Summary (clickable header) */
article details summary,
.prose details summary,
.md-typeset details summary {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.875rem 1rem;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  user-select: none;
  list-style: none;
  background: var(--muted, #f9fafb);
  border-bottom: 1px solid transparent;
  transition: all 0.2s ease;
}

/* Remove default marker */
article details summary::-webkit-details-marker,
.prose details summary::-webkit-details-marker,
.md-typeset details summary::-webkit-details-marker {
  display: none;
}

article details summary::marker,
.prose details summary::marker,
.md-typeset details summary::marker {
  display: none;
  content: "";
}

/* Chevron icon (using CSS pseudo-element) */
article details summary::before,
.prose details summary::before,
.md-typeset details summary::before {
  content: "";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.25rem;
  height: 1.25rem;
  flex-shrink: 0;
  background-color: var(--foreground, #111827);
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='9 18 15 12 9 6'%3E%3C/polyline%3E%3C/svg%3E");
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='9 18 15 12 9 6'%3E%3C/polyline%3E%3C/svg%3E");
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-position: center;
  mask-position: center;
  -webkit-mask-size: contain;
  mask-size: contain;
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Rotate chevron when open */
article details[open] summary::before,
.prose details[open] summary::before,
.md-typeset details[open] summary::before {
  transform: rotate(90deg);
}

/* Summary hover state */
article details summary:hover,
.prose details summary:hover,
.md-typeset details summary:hover {
  background: var(--accent, #f3f4f6);
}

/* Dark mode summary */
.dark article details summary,
.dark .prose details summary,
.dark .md-typeset details summary {
  background: var(--muted, #1f2937);
}

.dark article details summary::before,
.dark .prose details summary::before,
.dark .md-typeset details summary::before {
  background-color: var(--foreground, #f9fafb);
}

.dark article details summary:hover,
.dark .prose details summary:hover,
.dark .md-typeset details summary:hover {
  background: var(--accent, #374151);
}

/* Open state: show border under summary */
article details[open] summary,
.prose details[open] summary,
.md-typeset details[open] summary {
  border-bottom-color: var(--border, #e5e7eb);
}

.dark article details[open] summary,
.dark .prose details[open] summary,
.dark .md-typeset details[open] summary {
  border-bottom-color: var(--border, #374151);
}

/* Details content area */
article details > *:not(summary),
.prose details > *:not(summary),
.md-typeset details > *:not(summary) {
  padding: 0 1rem;
}

article details > *:not(summary):first-of-type,
.prose details > *:not(summary):first-of-type,
.md-typeset details > *:not(summary):first-of-type {
  padding-top: 1rem;
}

article details > *:not(summary):last-child,
.prose details > *:not(summary):last-child,
.md-typeset details > *:not(summary):last-child {
  padding-bottom: 1rem;
}

/* ========================================
   Admonition-style Details (note, tip, warning, etc.)
   For pymdownx.details integration
   ======================================== */

/* Note style details */
article details.note summary,
.prose details.note summary,
.md-typeset details.note summary {
  background: rgba(59, 130, 246, 0.08);
}

article details.note summary::before,
.prose details.note summary::before,
.md-typeset details.note summary::before {
  background-color: #3b82f6;
}

/* Tip style details */
article details.tip summary,
.prose details.tip summary,
.md-typeset details.tip summary {
  background: rgba(16, 185, 129, 0.08);
}

article details.tip summary::before,
.prose details.tip summary::before,
.md-typeset details.tip summary::before {
  background-color: #10b981;
}

/* Warning style details */
article details.warning summary,
.prose details.warning summary,
.md-typeset details.warning summary {
  background: rgba(245, 158, 11, 0.08);
}

article details.warning summary::before,
.prose details.warning summary::before,
.md-typeset details.warning summary::before {
  background-color: #f59e0b;
}

/* Danger style details */
article details.danger summary,
.prose details.danger summary,
.md-typeset details.danger summary {
  background: rgba(239, 68, 68, 0.08);
}

article details.danger summary::before,
.prose details.danger summary::before,
.md-typeset details.danger summary::before {
  background-color: #ef4444;
}

/* Info style details */
article details.info summary,
.prose details.info summary,
.md-typeset details.info summary {
  background: rgba(6, 182, 212, 0.08);
}

article details.info summary::before,
.prose details.info summary::before,
.md-typeset details.info summary::before {
  background-color: #06b6d4;
}

/* Example style details */
article details.example summary,
.prose details.example summary,
.md-typeset details.example summary {
  background: rgba(139, 92, 246, 0.08);
}

article details.example summary::before,
.prose details.example summary::before,
.md-typeset details.example summary::before {
  background-color: #8b5cf6;
}

/* ========================================
   Focus styles for accessibility
   ======================================== */

article details summary:focus,
.prose details summary:focus,
.md-typeset details summary:focus {
  outline: 2px solid var(--ring, #3b82f6);
  outline-offset: 2px;
}

article details summary:focus:not(:focus-visible),
.prose details summary:focus:not(:focus-visible),
.md-typeset details summary:focus:not(:focus-visible) {
  outline: none;
}

article details summary:focus-visible,
.prose details summary:focus-visible,
.md-typeset details summary:focus-visible {
  outline: 2px solid var(--ring, #3b82f6);
  outline-offset: 2px;
}