.snap-opus-toc {
  --snap-toc-accent: #4c4dff;
  --snap-toc-background: #fff;
  --snap-toc-border: #e4e6ec;
  --snap-toc-indent: 16px;
  --snap-toc-muted: #656872;
  --snap-toc-sticky-offset: 96px;
  --snap-toc-text: #1d1d1f;
  --snap-reading-button-bg: #1d1d1f;
  --snap-reading-button-text: #fff;
  --snap-reading-layer: 30;
  --snap-reading-progress: #4c4dff;
  --snap-reading-thickness: 5px;
  --snap-reading-track: color-mix(in srgb, #1d1d1f, transparent 88%);
  --snap-reading-value: 0%;
  color: var(--snap-toc-text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  width: 100%;
}

.snap-opus-toc *,
.snap-opus-toc *::before,
.snap-opus-toc *::after {
  box-sizing: border-box;
}

.snap-opus-toc--dark {
  --snap-toc-accent: #a9aaff;
  --snap-toc-background: #1d1d1f;
  --snap-toc-border: #393a40;
  --snap-toc-muted: #a9abb4;
  --snap-toc-text: #f5f5f7;
  --snap-reading-button-bg: #f5f5f7;
  --snap-reading-button-text: #1d1d1f;
  --snap-reading-track: color-mix(in srgb, #fff, transparent 82%);
}

.snap-opus-toc--sticky {
  position: sticky;
  top: var(--snap-toc-sticky-offset);
}

.snap-opus-toc__panel {
  background: var(--snap-toc-background);
  border: 1px solid var(--snap-toc-border);
  border-radius: 20px;
  padding: 24px;
}

.snap-opus-toc__title {
  color: var(--snap-toc-text);
  font-size: 13px;
  font-weight: 750;
  letter-spacing: .09em;
  line-height: 1.25;
  margin: 0 0 16px;
  text-transform: uppercase;
}

.snap-opus-toc__toggle {
  align-items: center;
  appearance: none;
  background: transparent;
  border: 0;
  color: var(--snap-toc-text);
  cursor: pointer;
  display: none;
  font: 750 15px/1.3 inherit;
  gap: 12px;
  justify-content: space-between;
  margin: 0;
  padding: 0;
  text-align: left;
  width: 100%;
}

.snap-opus-toc__count {
  align-items: center;
  background: color-mix(in srgb, var(--snap-toc-accent), transparent 88%);
  border-radius: 999px;
  color: var(--snap-toc-accent);
  display: inline-flex;
  flex: 0 0 auto;
  font-size: 12px;
  font-weight: 750;
  justify-content: center;
  min-height: 28px;
  min-width: 28px;
  padding: 4px 9px;
}

.snap-opus-toc__list,
.snap-opus-toc__list ol {
  list-style: none;
  margin: 0;
  padding: 0;
}

.snap-opus-toc__list {
  display: grid;
  gap: var(--snap-toc-item-gap, 4px);
}

.snap-opus-toc__list ol {
  display: grid;
  gap: var(--snap-toc-item-gap, 4px);
  margin-top: var(--snap-toc-item-gap, 4px);
  padding-left: var(--snap-toc-indent);
}

.snap-opus-toc__item {
  margin: 0;
  min-width: 0;
}

.snap-opus-toc__link {
  border-radius: 10px;
  color: var(--snap-toc-muted);
  display: block;
  font-size: 14px;
  font-weight: 560;
  line-height: 1.42;
  overflow-wrap: anywhere;
  padding: 8px 10px;
  text-decoration: none;
  transition: background-color .18s ease, color .18s ease, transform .18s ease;
}

.snap-opus-toc__link:hover {
  background: color-mix(in srgb, var(--snap-toc-accent), transparent 94%);
  color: var(--snap-toc-text);
}

.snap-opus-toc__link:focus-visible,
.snap-opus-toc__toggle:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--snap-toc-accent), #fff 30%);
  outline-offset: 2px;
}

.snap-opus-toc__link[aria-current="location"] {
  background: color-mix(in srgb, var(--snap-toc-accent), transparent 88%);
  color: var(--snap-toc-accent);
  font-weight: 720;
}

.snap-opus-toc__item--h3 > .snap-opus-toc__link,
.snap-opus-toc__item--h4 > .snap-opus-toc__link {
  font-size: 13px;
}

.snap-opus-toc__empty {
  color: var(--snap-toc-muted);
  font-size: 14px;
  line-height: 1.5;
  margin: 0;
}

.snap-opus-toc__progress,
.snap-opus-toc__back {
  display: none;
}

.snap-opus-toc[data-enhanced="yes"] .snap-opus-toc__progress {
  background: var(--snap-reading-track);
  display: block;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
  position: fixed;
  z-index: var(--snap-reading-layer);
}

.snap-opus-toc[data-enhanced="yes"][data-progress-active="yes"] .snap-opus-toc__progress {
  opacity: 1;
}

.snap-opus-toc__progress-value {
  background: var(--snap-reading-progress);
  display: block;
  height: 100%;
  transform-origin: left center;
  width: 100%;
}

.snap-opus-toc--progress-horizontal .snap-opus-toc__progress {
  height: var(--snap-reading-thickness);
  inset-inline: 0;
  width: 100%;
}

.snap-opus-toc--progress-horizontal .snap-opus-toc__progress-value {
  width: var(--snap-reading-value);
}

.snap-opus-toc--progress-top .snap-opus-toc__progress {
  top: max(env(safe-area-inset-top, 0px), var(--wp-admin--admin-bar--height, 0px));
}

.snap-opus-toc--progress-bottom .snap-opus-toc__progress {
  bottom: env(safe-area-inset-bottom, 0px);
}

.snap-opus-toc--progress-vertical .snap-opus-toc__progress {
  bottom: env(safe-area-inset-bottom, 0px);
  height: calc(100dvh - env(safe-area-inset-top, 0px) - env(safe-area-inset-bottom, 0px));
  top: env(safe-area-inset-top, 0px);
  width: var(--snap-reading-thickness);
}

.snap-opus-toc--progress-vertical .snap-opus-toc__progress-value {
  height: var(--snap-reading-value);
  width: 100%;
}

.snap-opus-toc--progress-left .snap-opus-toc__progress {
  inset-inline-start: 0;
}

.snap-opus-toc--progress-right .snap-opus-toc__progress {
  inset-inline-end: 0;
}

.snap-opus-toc[data-enhanced="yes"] .snap-opus-toc__back {
  appearance: none;
  background: var(--snap-reading-button-bg);
  border: 1px solid color-mix(in srgb, var(--snap-reading-button-text), transparent 78%);
  border-radius: 999px;
  box-shadow: 0 10px 32px color-mix(in srgb, #000, transparent 80%);
  color: var(--snap-reading-button-text);
  cursor: pointer;
  display: inline-flex;
  font: 750 13px/1 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  min-height: 44px;
  min-width: 44px;
  opacity: 0;
  padding: 12px 16px;
  pointer-events: none;
  position: fixed;
  transform: translateY(8px);
  transition: opacity .18s ease, transform .18s ease;
  visibility: hidden;
  z-index: var(--snap-reading-layer);
}

.snap-opus-toc[data-back-visible="yes"] .snap-opus-toc__back {
  opacity: 1;
  pointer-events: auto;
  transform: none;
  visibility: visible;
}

.snap-opus-toc--back-bottom-right .snap-opus-toc__back,
.snap-opus-toc--back-top-right .snap-opus-toc__back {
  inset-inline-end: max(20px, env(safe-area-inset-right, 0px));
}

.snap-opus-toc--back-bottom-left .snap-opus-toc__back,
.snap-opus-toc--back-top-left .snap-opus-toc__back {
  inset-inline-start: max(20px, env(safe-area-inset-left, 0px));
}

.snap-opus-toc--back-bottom-right .snap-opus-toc__back,
.snap-opus-toc--back-bottom-left .snap-opus-toc__back {
  bottom: max(20px, env(safe-area-inset-bottom, 0px));
}

.snap-opus-toc--back-top-right .snap-opus-toc__back,
.snap-opus-toc--back-top-left .snap-opus-toc__back {
  top: max(20px, env(safe-area-inset-top, 0px), var(--wp-admin--admin-bar--height, 0px));
}

.snap-opus-toc__back:hover {
  filter: brightness(1.08);
}

.snap-opus-toc__back:focus-visible {
  outline: 3px solid var(--snap-reading-progress);
  outline-offset: 3px;
}

.snap-opus-toc__nojs {
  color: var(--snap-toc-muted);
  font-size: 13px;
  line-height: 1.45;
  margin: 12px 0 0;
}

body.snap-opus-portal-open .snap-opus-toc[data-enhanced="yes"] .snap-opus-toc__back,
body:has(.snap-opus-navigation[data-mobile-open="yes"]) .snap-opus-toc[data-enhanced="yes"] .snap-opus-toc__back {
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
}

.snap-opus-toc[data-mobile-active="yes"] {
  position: static;
}

.snap-opus-toc[data-mobile-active="yes"] .snap-opus-toc__title {
  display: none;
}

.snap-opus-toc[data-mobile-active="yes"] .snap-opus-toc__toggle {
  display: flex;
}

.snap-opus-toc[data-mobile-active="yes"] .snap-opus-toc__body {
  margin-top: 16px;
}

.snap-opus-toc[data-has-items="yes"] .snap-opus-toc__empty,
.snap-opus-toc:not([data-has-items="yes"]) .snap-opus-toc__list {
  display: none;
}

.snap-opus-toc:not([data-has-items="yes"]) .snap-opus-toc__toggle {
  display: none;
}

@media (max-width: 767px) {
  .snap-opus-toc__panel {
    padding: 18px 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .snap-opus-toc__link,
  .snap-opus-toc__back {
    scroll-behavior: auto;
    transition: none;
  }
}

@media (forced-colors: active) {
  .snap-opus-toc__panel,
  .snap-opus-toc__link[aria-current="location"] {
    border: 1px solid CanvasText;
  }

  .snap-opus-toc__link[aria-current="location"] {
    forced-color-adjust: none;
    background: Highlight;
    color: HighlightText;
  }

  .snap-opus-toc__progress {
    background: Canvas;
    border: 1px solid CanvasText;
  }

  .snap-opus-toc__progress-value,
  .snap-opus-toc__back {
    forced-color-adjust: auto;
  }

  .snap-opus-toc__back {
    background: ButtonFace;
    border: 2px solid ButtonText;
    color: ButtonText;
  }
}