/* ML Meanders - Tufte-Style Sidenotes */

/* ============================================
   Sidenote Toggle (for mobile)
   ============================================ */
.sidenote-toggle {
  display: none;
}

.sidenote-toggle-checkbox {
  display: none;
}

/* Sidenote number indicator */
.sidenote-number {
  counter-increment: sidenote-counter;
}

.sidenote-number::after {
  content: counter(sidenote-counter);
  font-size: 0.75em;
  vertical-align: super;
  line-height: 0;
  color: var(--color-accent);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
}

/* ============================================
   Sidenotes (Desktop: in margin)
   ============================================ */
.sidenote {
  float: right;
  clear: right;
  width: var(--sidenote-width, 280px);
  margin-right: calc(-1 * var(--sidenote-width, 280px) - var(--sidenote-gap, 40px));
  margin-bottom: var(--space-xl);
  font-size: var(--font-size-sm);
  line-height: 1.9;
  color: var(--color-text-muted);
  position: relative;
}

/* Sidenote number in margin */
.sidenote::before {
  content: counter(sidenote-counter) '. ';
  font-weight: var(--font-weight-medium);
  color: var(--color-accent);
}

/* Counter for sidenotes */
.post-body {
  counter-reset: sidenote-counter;
}

/* ============================================
   Sidenotes (Mobile: inline expandable)
   ============================================ */
@media (max-width: 1099px) {
  .sidenote-toggle {
    display: inline;
  }

  .sidenote {
    float: none;
    width: 100%;
    margin: var(--space-md) 0;
    padding: var(--space-md);
    background-color: var(--color-bg-subtle);
    border-left: 3px solid var(--color-accent);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    display: none;
    clear: both;
  }

  /* Show sidenote when checkbox is checked */
  .sidenote-toggle-checkbox:checked + .sidenote {
    display: block;
  }

  /* Or show all sidenotes inline without toggle */
  .sidenotes-visible .sidenote {
    display: block;
  }
}

/* ============================================
   Footnotes (always at bottom)
   ============================================ */
.footnotes {
  margin-top: var(--space-3xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.footnotes-sep {
  display: none; /* We use border-top instead */
}

.footnotes-list {
  padding-left: var(--space-lg);
  margin: 0;
}

.footnote-item {
  margin-bottom: var(--space-md);
}

.footnote-item:last-child {
  margin-bottom: 0;
}

/* Footnote reference in text */
.footnote-ref {
  font-size: 0.8em;
}

.footnote-ref a {
  color: var(--color-accent);
  text-decoration: none;
  padding: 0 0.1em;
}

.footnote-ref a:hover {
  text-decoration: underline;
}

/* Back reference from footnote */
.footnote-backref {
  font-family: var(--font-sans);
  color: var(--color-accent);
  text-decoration: none;
  margin-left: var(--space-xs);
}

.footnote-backref:hover {
  text-decoration: underline;
}

/* ============================================
   Highlight footnote/sidenote when targeted
   ============================================ */
.footnote-item:target,
.sidenote:target {
  background-color: rgba(74, 124, 114, 0.1);
  border-radius: var(--radius-sm);
  padding: var(--space-sm);
  margin-left: calc(-1 * var(--space-sm));
  animation: highlight-fade 2s ease-out;
}

@keyframes highlight-fade {
  0% {
    background-color: rgba(74, 124, 114, 0.2);
  }
  100% {
    background-color: rgba(74, 124, 114, 0.1);
  }
}