/* Notebook finder on the home page (see nb-finder.js) */

.nb-finder,
.nb-finder-side,
.nb-finder__meta {
  --nbf-primary: var(--pst-color-primary, #0a7d91);
  --nbf-border: var(--pst-color-border, #d0d7de);
  --nbf-surface: var(--pst-color-surface, #f5f7fa);
  --nbf-bg: var(--pst-color-background, #ffffff);
  --nbf-text: var(--pst-color-text-base, #1f2328);
  --nbf-muted: var(--pst-color-text-muted, #59636e);
  --nbf-tint: rgba(10, 125, 145, 0.1);
  --nbf-tint: color-mix(in srgb, var(--nbf-primary) 12%, transparent);
  --nbf-shadow: 0 1px 2px rgba(15, 23, 42, 0.06), 0 1px 3px rgba(15, 23, 42, 0.08);
  --nbf-shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.18), 0 2px 6px rgba(15, 23, 42, 0.08);
  --nbf-radius: 0.75rem;
}

.nb-finder {
  margin: 0.5rem 0 1.75rem;
}

.nb-finder[hidden],
.nb-finder-hidden,
.nb-finder [hidden] {
  display: none !important;
}

.nb-finder__panel {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  padding: 1.1rem;
  background: var(--nbf-surface);
  border: 1px solid var(--nbf-border);
  border-top: 3px solid var(--nbf-primary);
  border-radius: var(--nbf-radius);
  box-shadow: var(--nbf-shadow);
}

/* ---- Search ---------------------------------------------------------- */

.nb-finder__searchbox {
  position: relative;
}

.nb-finder__icon {
  display: inline-flex;
  flex: none;
  width: 1rem;
  height: 1rem;
}

.nb-finder__icon svg {
  width: 100%;
  height: 100%;
}

.nb-finder__search-icon {
  position: absolute;
  top: 50%;
  left: 0.9rem;
  width: 1.15rem;
  height: 1.15rem;
  color: var(--nbf-muted);
  transform: translateY(-50%);
  pointer-events: none;
}

.nb-finder__search {
  width: 100%;
  padding: 0.7rem 0.9rem 0.7rem 2.6rem;
  font: inherit;
  font-size: 1rem;
  color: var(--nbf-text);
  background: var(--nbf-bg);
  border: 1px solid var(--nbf-border);
  border-radius: 0.6rem;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.nb-finder__search:focus,
.nb-finder__menu-search:focus {
  outline: none;
  border-color: var(--nbf-primary);
  box-shadow: 0 0 0 3px var(--nbf-tint);
}

/* ---- Filter bar ------------------------------------------------------ */

.nb-finder__bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.nb-finder__dropdown {
  position: relative;
}

.nb-finder__toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.7rem 0.45rem 0.8rem;
  font: inherit;
  font-size: 0.9rem;
  font-weight: 500;
  line-height: 1.3;
  color: var(--nbf-text);
  background: var(--nbf-bg);
  border: 1px solid var(--nbf-border);
  border-radius: 999px;
  box-shadow: var(--nbf-shadow);
  cursor: pointer;
  transition: border-color 0.15s, background-color 0.15s, color 0.15s, transform 0.15s, box-shadow 0.15s;
}

.nb-finder__toggle > .nb-finder__icon:first-child {
  color: var(--nbf-primary);
}

.nb-finder__toggle:hover {
  border-color: var(--nbf-primary);
  transform: translateY(-1px);
}

.nb-finder__toggle:focus-visible,
.nb-finder__chip:focus-visible,
.nb-finder__clear:focus-visible,
.nb-finder__menu-clear:focus-visible,
.nb-finder__menu-done:focus-visible {
  outline: 2px solid var(--nbf-primary);
  outline-offset: 2px;
}

.nb-finder__toggle.is-active {
  color: var(--nbf-primary);
  background: var(--nbf-tint);
  border-color: var(--nbf-primary);
}

.nb-finder__toggle.is-open {
  border-color: var(--nbf-primary);
  box-shadow: 0 0 0 3px var(--nbf-tint);
  transform: none;
}

.nb-finder__chevron {
  width: 0.9rem;
  height: 0.9rem;
  opacity: 0.6;
  transition: transform 0.2s;
}

.nb-finder__toggle.is-open .nb-finder__chevron {
  transform: rotate(180deg);
}

.nb-finder__badge {
  min-width: 1.25rem;
  padding: 0 0.35rem;
  font-size: 0.72rem;
  font-weight: 700;
  line-height: 1.25rem;
  text-align: center;
  color: var(--nbf-bg);
  background: var(--nbf-primary);
  border-radius: 999px;
}

/* ---- Dropdown menu --------------------------------------------------- */

.nb-finder__menu {
  position: absolute;
  top: calc(100% + 0.45rem);
  left: 0;
  z-index: 30;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  width: max-content;
  min-width: 15rem;
  max-width: min(22rem, calc(100vw - 2rem));
  padding: 0.6rem;
  color: var(--nbf-text);
  background: var(--nbf-bg);
  border: 1px solid var(--nbf-border);
  border-radius: var(--nbf-radius);
  box-shadow: var(--nbf-shadow-lg);
  animation: nb-finder-pop 0.14s ease-out;
}

@keyframes nb-finder-pop {
  from {
    opacity: 0;
    transform: translateY(-4px) scale(0.98);
  }
}

.nb-finder__menu-search {
  width: 100%;
  padding: 0.4rem 0.6rem;
  font: inherit;
  font-size: 0.875rem;
  color: var(--nbf-text);
  background: var(--nbf-surface);
  border: 1px solid var(--nbf-border);
  border-radius: 0.45rem;
}

.nb-finder__hint {
  margin: 0;
  padding: 0 0.3rem;
  font-size: 0.78rem;
  color: var(--nbf-muted);
}

.nb-finder__options {
  display: flex;
  flex-direction: column;
  max-height: 17rem;
  overflow-y: auto;
  overscroll-behavior: contain;
}

.nb-finder__option {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0;
  padding: 0.4rem 0.5rem;
  font-size: 0.9rem;
  line-height: 1.3;
  border-radius: 0.45rem;
  cursor: pointer;
  transition: background-color 0.1s;
}

.nb-finder__option:hover {
  background: var(--nbf-surface);
}

.nb-finder__option.is-checked {
  background: var(--nbf-tint);
}

.nb-finder__option.is-empty {
  opacity: 0.45;
}

.nb-finder__check {
  flex: none;
  width: 1rem;
  height: 1rem;
  margin: 0;
  accent-color: var(--nbf-primary);
  cursor: pointer;
}

.nb-finder__option-name {
  flex: 1;
  min-width: 0;
}

.nb-finder__count {
  flex: none;
  min-width: 1.6rem;
  padding: 0 0.4rem;
  font-size: 0.75rem;
  font-variant-numeric: tabular-nums;
  line-height: 1.4rem;
  text-align: center;
  color: var(--nbf-muted);
  background: var(--nbf-surface);
  border-radius: 999px;
}

.nb-finder__option.is-checked .nb-finder__count {
  color: var(--nbf-primary);
  background: var(--nbf-bg);
}

.nb-finder__no-options {
  margin: 0.5rem 0;
  font-size: 0.85rem;
  text-align: center;
  color: var(--nbf-muted);
}

.nb-finder__menu-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 0.5rem;
  border-top: 1px solid var(--nbf-border);
}

.nb-finder__menu-clear,
.nb-finder__clear {
  padding: 0.25rem 0.5rem;
  font: inherit;
  font-size: 0.85rem;
  color: var(--nbf-primary);
  background: none;
  border: 0;
  border-radius: 0.35rem;
  cursor: pointer;
}

.nb-finder__menu-clear:hover,
.nb-finder__clear:hover {
  text-decoration: underline;
}

.nb-finder__menu-done {
  padding: 0.3rem 0.9rem;
  font: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--nbf-bg);
  background: var(--nbf-primary);
  border: 0;
  border-radius: 999px;
  cursor: pointer;
}

.nb-finder__menu-done:hover {
  filter: brightness(1.08);
}

/* ---- Active filters & status ----------------------------------------- */

.nb-finder__footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
  padding-top: 0.75rem;
  border-top: 1px dashed var(--nbf-border);
}

.nb-finder__active {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.nb-finder__chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.2rem 0.45rem 0.2rem 0.55rem;
  font: inherit;
  font-size: 0.82rem;
  line-height: 1.4;
  color: var(--nbf-primary);
  background: var(--nbf-tint);
  border: 1px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  animation: nb-finder-pop 0.14s ease-out;
  transition: border-color 0.15s;
}

.nb-finder__chip .nb-finder__icon {
  width: 0.8rem;
  height: 0.8rem;
}

.nb-finder__chip:hover {
  border-color: var(--nbf-primary);
}

.nb-finder__chip-x {
  opacity: 0.7;
}

.nb-finder__chip:hover .nb-finder__chip-x {
  opacity: 1;
}

.nb-finder__summary {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: auto;
}

.nb-finder__status {
  margin: 0;
  font-size: 0.9rem;
  color: var(--nbf-muted);
}

.nb-finder__status strong {
  color: var(--nbf-text);
}

.nb-finder__empty {
  margin: 1.5rem 0;
  padding: 1.25rem;
  text-align: center;
  color: var(--nbf-muted);
  border: 1px dashed var(--nbf-border);
  border-radius: var(--nbf-radius);
}

/* ---- Sidebar layout (wide screens) ----------------------------------- */

.nb-finder__controls {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.nb-finder--sidebar {
  scroll-margin-top: 5rem;
}

.nb-finder--sidebar .nb-finder__panel {
  padding: 0.7rem 1rem;
}

.nb-finder--sidebar .nb-finder__footer {
  padding-top: 0;
  border-top: 0;
}

.nb-finder-side {
  margin-top: 1.25rem;
}

.nb-finder-side__title {
  margin: 0 0 0.6rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--nbf-muted);
}

.nb-finder__controls.is-sidebar {
  gap: 0.6rem;
}

.nb-finder__controls.is-sidebar .nb-finder__search {
  padding: 0.5rem 0.7rem 0.5rem 2.2rem;
  font-size: 0.9rem;
}

.nb-finder__controls.is-sidebar .nb-finder__search-icon {
  left: 0.7rem;
  width: 1rem;
  height: 1rem;
}

.nb-finder__controls.is-sidebar .nb-finder__bar {
  flex-direction: column;
  flex-wrap: nowrap;
  gap: 0;
}

.nb-finder__controls.is-sidebar .nb-finder__dropdown {
  border-bottom: 1px solid var(--nbf-border);
}

.nb-finder__controls.is-sidebar .nb-finder__toggle {
  width: 100%;
  padding: 0.6rem 0.35rem;
  background: none;
  border: 0;
  border-radius: 0.4rem;
  box-shadow: none;
}

.nb-finder__controls.is-sidebar .nb-finder__toggle:hover {
  color: var(--nbf-primary);
  transform: none;
}

.nb-finder__controls.is-sidebar .nb-finder__toggle.is-open {
  box-shadow: none;
}

.nb-finder__controls.is-sidebar .nb-finder__toggle.is-active {
  color: var(--nbf-primary);
  background: none;
}

.nb-finder__controls.is-sidebar .nb-finder__toggle-label {
  flex: 1;
  text-align: left;
}

.nb-finder__controls.is-sidebar .nb-finder__menu {
  position: static;
  width: auto;
  min-width: 0;
  max-width: none;
  padding: 0 0 0.6rem;
  background: none;
  border: 0;
  box-shadow: none;
  animation: none;
}

.nb-finder__controls.is-sidebar .nb-finder__options {
  max-height: 14rem;
}

.nb-finder__controls.is-sidebar .nb-finder__option {
  padding: 0.3rem 0.4rem;
  font-size: 0.85rem;
}

.nb-finder__controls.is-sidebar .nb-finder__menu-done {
  display: none;
}

.nb-finder__controls.is-sidebar .nb-finder__menu-footer {
  padding-top: 0;
  border-top: 0;
}

.nb-finder__controls.is-sidebar .nb-finder__menu:not(.has-selection) .nb-finder__menu-footer {
  display: none;
}

/* ---- "On this page" sidebar on the finder page ------------------------ */

.bd-sidebar-secondary.nb-finder-toc {
  /* Reach the window edge beyond the theme's maximum page width */
  flex-basis: calc(var(--pst-sidebar-secondary, 17rem) + var(--nbf-toc-extend, 0px));
  width: calc(var(--pst-sidebar-secondary, 17rem) + var(--nbf-toc-extend, 0px));
  max-width: none;
  margin-right: calc(-1 * var(--nbf-toc-extend, 0px));
  /* It follows the page scroll (nb-finder.js), so no scrollbar is shown */
  scrollbar-width: none;
}

.bd-sidebar-secondary.nb-finder-toc::-webkit-scrollbar {
  display: none;
}

/* ---- Catalog labels on each notebook entry --------------------------- */

.nb-finder__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  margin: -0.25rem 0 0.5rem;
}

.nb-finder__pill {
  padding: 0.05rem 0.55rem;
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--nbf-muted);
  background: var(--nbf-surface);
  border: 1px solid var(--nbf-border);
  border-radius: 999px;
}

@media (max-width: 600px) {
  .nb-finder__panel {
    padding: 0.85rem;
  }

  .nb-finder__toggle {
    padding: 0.4rem 0.6rem;
    font-size: 0.85rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .nb-finder__menu,
  .nb-finder__chip {
    animation: none;
  }

  .nb-finder__toggle,
  .nb-finder__chevron {
    transition: none;
  }
}

/* ---- Authors page (sidebar menu only) -------------------------------- */

.nb-finder-side__summary {
  justify-content: space-between;
  margin: 0 0 0.6rem;
}

/* ---- Theme fix: closed "On this page" drawer ------------------------- */

/* Below 1200px the theme turns the right sidebar into a drawer hidden with
   visibility: hidden, but its scrollspy marks the expanded sub-list with
   Bootstrap's .visible (visibility: visible !important), which then shows
   through on top of the page. Keep it hidden until the drawer is opened. */
@media (max-width: 1199.98px) {
  .bd-sidebar-secondary:not([open]) .visible {
    visibility: inherit !important;
  }
}

/* ---- Theme fix: empty "Section Navigation" --------------------------- */

/* With sidebar_includehidden = True the theme keeps the section navigation on
   top-level pages without subpages (e.g. Getting Started, Contribute), which
   then shows only its "Section Navigation" title. Hide it when it's empty. */
.bd-docs-nav:has(.bd-toc-item:empty) {
  display: none;
}