/* ML Meanders - Hover Citations */

/* ============================================
   Citation References in Text
   ============================================ */
.citation {
  display: inline;
  cursor: pointer;
  color: var(--color-accent);
  font-weight: var(--font-weight-medium);
  position: relative;
}

.citation:hover {
  color: var(--color-accent-hover);
}

/* Citation brackets */
.citation::before {
  content: '[';
}

.citation::after {
  content: ']';
}

/* Multiple citations grouped */
.citation-group .citation::after {
  content: '';
}

.citation-group .citation:last-child::after {
  content: ']';
}

.citation-group .citation + .citation::before {
  content: ', ';
}

.citation-group .citation:first-child::before {
  content: '[';
}

/* ============================================
   Citation Tooltip (Hover)
   ============================================ */
.citation-tooltip {
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  width: 320px;
  max-width: 90vw;
  padding: var(--space-md);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-tooltip);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast), visibility var(--transition-fast);
  pointer-events: none;
  margin-bottom: var(--space-sm);
}

/* Arrow */
.citation-tooltip::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 8px solid transparent;
  border-top-color: var(--color-surface);
}

/* Border arrow */
.citation-tooltip::before {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 9px solid transparent;
  border-top-color: var(--color-border);
}

/* Show on hover */
.citation:hover .citation-tooltip,
.citation:focus .citation-tooltip {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* Tooltip positioning adjustments */
.citation-tooltip.tooltip-left {
  left: 0;
  transform: translateX(0);
}

.citation-tooltip.tooltip-left::after,
.citation-tooltip.tooltip-left::before {
  left: 24px;
}

.citation-tooltip.tooltip-right {
  left: auto;
  right: 0;
  transform: translateX(0);
}

.citation-tooltip.tooltip-right::after,
.citation-tooltip.tooltip-right::before {
  left: auto;
  right: 24px;
}

/* ============================================
   Citation Tooltip Content
   ============================================ */
.citation-tooltip .citation-authors {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-xs);
  font-size: var(--font-size-sm);
}

.citation-tooltip .citation-title {
  font-style: italic;
  color: var(--color-text);
  margin-bottom: var(--space-xs);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-snug);
}

.citation-tooltip .citation-venue {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.citation-tooltip .citation-year {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.citation-tooltip .citation-link {
  display: inline-block;
  margin-top: var(--space-sm);
  font-size: var(--font-size-xs);
  color: var(--color-accent);
}

/* ============================================
   References Section
   ============================================ */
.references {
  margin-top: var(--space-3xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
}

.references h2 {
  font-size: var(--font-size-xl);
  margin-top: 0;
  margin-bottom: var(--space-xl);
}

.references-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.reference-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-normal);
}

.reference-number {
  font-weight: var(--font-weight-semibold);
  color: var(--color-accent);
  min-width: 2em;
}

.reference-content {
  color: var(--color-text-muted);
}

.reference-content .authors {
  color: var(--color-text);
}

.reference-content .title {
  font-style: italic;
}

.reference-content a {
  color: var(--color-accent);
  word-break: break-word;
}

/* Highlight reference when targeted */
.reference-item:target {
  background-color: rgba(74, 124, 114, 0.1);
  margin-left: calc(-1 * var(--space-md));
  margin-right: calc(-1 * var(--space-md));
  padding: var(--space-md);
  border-radius: var(--radius-sm);
}

/* ============================================
   Mobile Adjustments
   ============================================ */
@media (max-width: 768px) {
  .citation-tooltip {
    position: fixed;
    bottom: var(--space-md);
    left: var(--space-md);
    right: var(--space-md);
    width: auto;
    max-width: none;
    transform: none;
  }

  .citation-tooltip::before,
  .citation-tooltip::after {
    display: none;
  }
}