openfreebooks-bookgenerator/themes/openfreebooks/sass/_chapter-heading-nav.scss

.chapter-heading-nav {
  pointer-events: none;
}

.chapter-heading-nav > * {
  pointer-events: auto;
}

.chapter-heading-nav__rail-wrap {
  position: fixed;
  top: 50%;
  right: 20px;
  z-index: 40;
  display: flex;
  flex-direction: row-reverse;
  align-items: center;
  gap: 12px;
  transform: translateY(-50%);
}

.chapter-heading-nav__rail {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
  padding: 10px 6px;
}

.chapter-heading-nav__tick {
  display: block;
  width: 18px;
  height: 3px;
  padding: 0;
  border: none;
  border-radius: 999px;
  background: var(--line);
  cursor: pointer;
  transition: width 160ms ease, background 160ms ease, opacity 160ms ease;
}

.chapter-heading-nav__tick--h3 {
  width: 12px;
  opacity: 0.75;
}

.chapter-heading-nav__tick--active {
  width: 26px;
  background: var(--ink);
}

.chapter-heading-nav__tick--h3.chapter-heading-nav__tick--active {
  width: 18px;
}

.chapter-heading-nav__popover {
  position: relative;
  top: auto;
  right: auto;
  transform: none;
  z-index: 40;
  display: flex;
  flex-direction: column;
  width: min(260px, calc(100vw - 80px));
  max-height: min(70vh, calc(100vh - 120px));
  padding: 14px 12px;
  border: 1px solid var(--card-border);
  border-radius: 12px;
  background-color: #f5f4f1;
  color: var(--ink);
  isolation: isolate;
  box-shadow: 0 18px 48px var(--shadow-soft);
}

[data-theme="dark"] .chapter-heading-nav__popover {
  background-color: #1a1917;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .chapter-heading-nav__popover {
    background-color: #1a1917;
  }
}

.chapter-heading-nav__popover-title {
  flex-shrink: 0;
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.chapter-heading-nav__popover .chapter-heading-nav__list {
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
}

.chapter-heading-nav__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.chapter-heading-nav__item--h3 .chapter-heading-nav__link {
  padding-left: 14px;
  font-size: 0.86rem;
}

.chapter-heading-nav__link {
  display: block;
  width: 100%;
  padding: 6px 8px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--soft-ink);
  font: inherit;
  font-size: 0.9rem;
  text-align: left;
  cursor: pointer;
  transition: background 120ms ease, color 120ms ease;
}

.chapter-heading-nav__link:hover {
  background: rgba(154, 107, 46, 0.1);
  color: var(--ink);
}

.chapter-heading-nav__item--active .chapter-heading-nav__link {
  background: rgba(154, 107, 46, 0.18);
  color: var(--ink);
  font-weight: 600;
}

.chapter-heading-nav__item--active .chapter-heading-nav__link:hover {
  background: rgba(154, 107, 46, 0.24);
}

.chapter-heading-nav__fab {
  position: fixed;
  right: 16px;
  bottom: 20px;
  z-index: 45;
  padding: 10px 16px;
  border: 1px solid var(--card-border);
  border-radius: 999px;
  background-color: #f5f4f1;
  isolation: isolate;
  box-shadow: 0 8px 24px var(--shadow-soft);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
}

[data-theme="dark"] .chapter-heading-nav__fab {
  background-color: #1a1917;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .chapter-heading-nav__fab {
    background-color: #1a1917;
  }
}

.chapter-heading-nav__backdrop {
  position: fixed;
  inset: 0;
  z-index: 46;
  border: none;
  background: rgba(26, 26, 26, 0.45);
  cursor: pointer;
}

[data-theme="dark"] .chapter-heading-nav__backdrop {
  background: rgba(0, 0, 0, 0.62);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .chapter-heading-nav__backdrop {
    background: rgba(0, 0, 0, 0.62);
  }
}

.chapter-heading-nav__sheet {
  position: fixed;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 47;
  max-height: 70vh;
  padding: 16px 18px 28px;
  overflow-y: auto;
  border-radius: 16px 16px 0 0;
  border: 1px solid var(--card-border);
  background-color: #f5f4f1;
  color: var(--ink);
  isolation: isolate;
  box-shadow: 0 -18px 48px var(--shadow-soft);
}

[data-theme="dark"] .chapter-heading-nav__sheet {
  background-color: #1a1917;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .chapter-heading-nav__sheet {
    background-color: #1a1917;
  }
}

.chapter-heading-nav__sheet-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.chapter-heading-nav__sheet-close {
  padding: 4px 10px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
}

@media (max-width: 899px) {
  .chapter-heading-nav__rail-wrap {
    display: none;
  }
}

@media (min-width: 900px) {
  .chapter-heading-nav__fab,
  .chapter-heading-nav__backdrop,
  .chapter-heading-nav__sheet {
    display: none;
  }
}