/* Bibliotheek-pagina's: vakken.html, vak.html, boeken.html, boek.html en
   onderwerp.html. Vijf pagina's, één visueel systeem — gradient-hero met glow
   blobs zoals teach.html, glazen filterbalk, en klikbare rijen in plaats van
   kaarten waar een lijst beter leest (met name de docentkeuze op mobiel).

   Hergebruikt uit /app/core/global.css: .container, .btn-premium, .premium-card,
   --grad-hero, --radius-lg/xl, --shadow-lift, en [data-reveal] voor scroll-reveal
   (/app/shared/scroll-reveal/scroll-reveal.js). */

/* ---------------------------------------------------------------------------
   Scroll-reveal — zelfde start-state als teach.css, zodat bezoekers zonder JS
   altijd alles zien.
--------------------------------------------------------------------------- */
.reveal-on [data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
  transition-delay: calc(var(--reveal-delay, 0) * 90ms);
  will-change: opacity, transform;
}
.reveal-on [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------------------------------------------------------------------------
   Hero
--------------------------------------------------------------------------- */
.lib-hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  background: var(--grad-hero);
  color: #fff;
  padding: 3rem 0 2.25rem;
}
.lib-hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}
.lib-hero__blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.5;
}
.lib-hero__blob--1 {
  width: 360px;
  height: 360px;
  top: -160px;
  right: -40px;
  background: radial-gradient(circle at 30% 30%, #ff2fd6, transparent 70%);
}
.lib-hero__blob--2 {
  width: 320px;
  height: 320px;
  bottom: -180px;
  left: -60px;
  background: radial-gradient(circle at 60% 40%, #7b2ff7, transparent 70%);
}
.lib-hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, #000 30%, transparent 75%);
}

.lib-hero__inner {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}
.lib-hero__title {
  font-size: clamp(1.6rem, 3.6vw, 2.5rem);
  font-weight: 700;
  line-height: 1.1;
  margin: 0;
}
.lib-hero__sub {
  margin: 0.35rem 0 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.98rem;
}
.lib-hero__text {
  flex: 1 1 240px;
  min-width: 0;
}
.lib-hero__actions {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}
/* Cover image next to a book title. */
.lib-hero__cover {
  width: 74px;
  height: 100px;
  border-radius: 8px;
  object-fit: cover;
  background: rgba(255, 255, 255, 0.12);
  box-shadow: var(--shadow-lift);
  flex: none;
}

/* Small stat chips inside a hero (aantal onderwerpen, aantal cursussen). */
.lib-chips {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 0.85rem;
}
.lib-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.75rem;
  border-radius: 100px;
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 600;
  backdrop-filter: blur(6px);
}

/* ---------------------------------------------------------------------------
   Vak-badge (het gekleurde ronde icoon)
--------------------------------------------------------------------------- */
.lib-badge {
  --badge-color: var(--accent-purple);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  border-radius: 50%;
  color: #fff;
  background: linear-gradient(135deg, var(--badge-color), color-mix(in srgb, var(--badge-color) 55%, #000));
  box-shadow: 0 6px 18px -6px color-mix(in srgb, var(--badge-color) 70%, transparent);
}
/* Fallback voor browsers zonder color-mix. */
@supports not (background: color-mix(in srgb, red 50%, blue)) {
  .lib-badge {
    background: var(--badge-color);
  }
}

/* ---------------------------------------------------------------------------
   Body + secties
--------------------------------------------------------------------------- */
.lib-body {
  padding: 2rem 0 4rem;
}
.lib-section {
  margin-bottom: 2.5rem;
}
.lib-section__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem 1rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}
.lib-section__title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--secondary-color);
  margin: 0;
}
.lib-section__link {
  color: var(--primary-color);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  white-space: nowrap;
}
.lib-section__link:hover {
  text-decoration: underline;
}

/* Thema- en subthema-koppen op de Onderwerpen-tab. */
.lib-theme {
  flex: 1 1 60%;
  min-width: min(100%, 12rem);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--secondary-color);
  margin: 2rem 0 0.15rem;
  overflow-wrap: anywhere;
}
.lib-subtheme {
  font-size: 0.92rem;
  color: var(--gray);
  margin: 0 0 0.6rem;
}

/* "Alle cursussen" op een themakop, en het vlak dat daaronder uitklapt. */
.lib-theme-courses__toggle {
  flex: none;
  align-self: center;
  white-space: nowrap;
}
.lib-theme-courses {
  display: none;
  margin: 0 0 1.25rem;
  padding: 1rem;
  border: 1px solid var(--border-color);
  border-radius: 14px;
}
.lib-theme-courses.is-open {
  display: block;
}
.lib-theme-courses__topics {
  margin: -0.15rem 0 1rem;
  padding: 0 0.25rem;
  font-size: 0.85rem;
  color: var(--gray);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem 0.45rem;
}
.lib-theme-courses__label {
  font-weight: 600;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--dark_gray);
}
.lib-theme-courses__topic {
  display: inline-flex;
  align-items: center;
  padding: 0.28rem 0.7rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.82rem;
  line-height: 1.2;
  text-decoration: none;
  color: var(--primary-color);
  background:
    linear-gradient(var(--white), var(--white)) padding-box,
    linear-gradient(135deg, color-mix(in srgb, var(--primary-color) 60%, transparent), color-mix(in srgb, var(--primary-color) 12%, transparent)) border-box;
  border: 1px solid transparent;
  box-shadow: 0 1px 2px rgba(28, 29, 31, 0.05);
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, color 0.15s ease;
}
.lib-theme-courses__topic:hover {
  color: var(--white);
  background:
    linear-gradient(135deg, var(--primary-color), color-mix(in srgb, var(--primary-color) 70%, #7a1bd6)) padding-box,
    linear-gradient(135deg, var(--primary-color), color-mix(in srgb, var(--primary-color) 70%, #7a1bd6)) border-box;
  box-shadow: 0 6px 16px -4px color-mix(in srgb, var(--primary-color) 45%, transparent);
  transform: translateY(-1px);
}
.lib-theme-courses__loading {
  margin: 0;
  color: var(--gray);
}

/* ---------------------------------------------------------------------------
   Klikbare rij — onderwerpen, boekhoofdstukken, recente items
--------------------------------------------------------------------------- */
.lib-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.lib-row {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 0.85rem 1.1rem;
  background: var(--white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  color: inherit;
  text-decoration: none;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}
.lib-row:hover {
  transform: translateY(-2px);
  border-color: var(--primary-color);
  box-shadow: var(--shadow-hover);
}
.lib-row__lead {
  flex: none;
}
/* Genummerd bolletje voor boekhoofdstukken ("1", "2", …). */
.lib-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--light-light-gray);
  color: var(--primary-color);
  font-weight: 700;
  font-size: 0.95rem;
}
.lib-row__body {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}
.lib-row__title {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  min-width: 0;
  font-weight: 600;
  color: var(--secondary-color);
  line-height: 1.3;
  overflow-wrap: anywhere;
}
.lib-row__done {
  color: #34d399;
  font-size: 1.05rem;
}
.lib-row__subtitle {
  font-size: 0.88rem;
  color: var(--gray);
}
.lib-row__meta {
  flex: none;
  font-size: 0.88rem;
  color: var(--dark_gray);
  white-space: nowrap;
}
.lib-row__go {
  flex: none;
  color: var(--gray);
  font-size: 1.3rem;
}
.lib-row:hover .lib-row__go {
  color: var(--primary-color);
}
/* Rij die geen link is (opsomming) — mag niet reageren alsof je erop kunt klikken. */
.lib-row--static,
.lib-row--static:hover {
  transform: none;
  box-shadow: none;
  border-color: var(--border-color);
  cursor: default;
}

/* Een onderwerp zonder cursussen mag niet als "kapot" ogen, wel als rustiger. */
.lib-row--muted .lib-row__title {
  color: var(--dark_gray);
}
.lib-row--muted .lib-row__meta {
  color: var(--gray);
}

/* De snelkoppeling naar cursussen die een heel boekhoofdstuk dekken, boven de
   losse paragrafen — mag iets opvallen zonder een volledig andere stijl te zijn. */
.lib-row--highlight {
  border-color: var(--primary-color);
  background: var(--light-light-gray);
}

/* ---------------------------------------------------------------------------
   Docentkeuze: verticale cursusrij met thumbnail
--------------------------------------------------------------------------- */
.lib-course-row {
  display: flex;
  align-items: stretch;
  gap: 1rem;
  padding: 0.9rem;
  background: var(--white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  color: inherit;
  text-decoration: none;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}
.lib-course-row:hover {
  transform: translateY(-2px);
  border-color: var(--primary-color);
  box-shadow: var(--shadow-lift);
}
.lib-course-row__thumb {
  flex: none;
  width: 168px;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 10px;
  background: var(--light-gray);
}
/* Geen thumbnail: leeg vlak, geen voorbeeldafbeelding. */
.lib-course-row__thumb--empty {
  background: var(--light-gray);
}
.lib-course-row__body {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.lib-course-row__title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--secondary-color);
  line-height: 1.25;
}
.lib-course-row__teacher {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.9rem;
  color: var(--dark_gray);
}
.lib-course-row__desc {
  font-size: 0.9rem;
  color: var(--gray);
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.lib-course-row__meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  font-size: 0.86rem;
  color: var(--dark_gray);
  margin-top: auto;
}
.lib-rating {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-weight: 700;
  color: var(--orange);
}
.lib-course-row__tag {
  padding: 0.15rem 0.55rem;
  border-radius: 100px;
  background: var(--light-light-gray);
  color: var(--dark_gray);
  font-size: 0.78rem;
  font-weight: 600;
}
/* De best beoordeelde cursus krijgt een subtiel randje, geen luid label. */
.lib-course-row--top {
  border-color: var(--primary-color);
}
.lib-course-row__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.15rem 0.6rem;
  border-radius: 100px;
  background: var(--grad-brand);
  color: #fff;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

/* ---------------------------------------------------------------------------
   Tabs
--------------------------------------------------------------------------- */
.lib-tabs {
  display: flex;
  gap: 0.35rem;
  border-bottom: 1px solid var(--border-color);
  overflow-x: auto;
  scrollbar-width: none;
}
.lib-tabs::-webkit-scrollbar {
  display: none;
}
.lib-tabs__tab {
  position: relative;
  padding: 0.85rem 1rem;
  background: none;
  border: none;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  color: var(--gray);
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.2s ease;
}
.lib-tabs__tab:hover {
  color: var(--secondary-color);
}
.lib-tabs__tab.is-active {
  color: var(--primary-color);
}
.lib-tabs__tab.is-active::after {
  content: "";
  position: absolute;
  left: 0.7rem;
  right: 0.7rem;
  bottom: -1px;
  height: 2px;
  border-radius: 2px;
  background: var(--primary-color);
}
/* Lucht tussen de tabbalk en de inhoud eronder — zonder dit plakt de eerste
   sectie ("Jouw boek") direct tegen de tabs. */
.lib-tabs + * {
  margin-top: 2.25rem;
}

/* ---------------------------------------------------------------------------
   Filterbalk
--------------------------------------------------------------------------- */
.lib-toolbar {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin: 1.5rem 0;
}
.lib-toolbar__spacer {
  flex: 1 1 auto;
}
.lib-filter {
  position: relative;
  display: inline-flex;
  align-items: center;
}
.lib-filter__select {
  appearance: none;
  padding: 0.55rem 2.2rem 0.55rem 1rem;
  border-radius: 100px;
  border: 1px solid var(--border-color);
  background: var(--white);
  color: var(--secondary-color);
  font-family: inherit;
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
}
.lib-filter__select:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}
.lib-filter.is-active .lib-filter__select {
  border-color: var(--primary-color);
  color: var(--primary-color);
}
.lib-filter__caret {
  position: absolute;
  right: 0.8rem;
  pointer-events: none;
  color: var(--gray);
  font-size: 1.1rem;
}
.lib-clear {
  background: none;
  border: none;
  font-family: inherit;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--primary-color);
  cursor: pointer;
  padding: 0.55rem 0.4rem;
}
.lib-clear:hover {
  text-decoration: underline;
}

.lib-search {
  position: relative;
  display: flex;
  align-items: center;
  flex: 1 1 260px;
  max-width: 480px;
}
.lib-search__icon {
  position: absolute;
  left: 1rem;
  color: var(--gray);
  font-size: 1.15rem;
  pointer-events: none;
}
.lib-search__input {
  width: 100%;
  padding: 0.7rem 1rem 0.7rem 2.7rem;
  border-radius: 100px;
  border: 1px solid var(--border-color);
  background: var(--white);
  color: var(--secondary-color);
  font-family: inherit;
  font-size: 0.95rem;
}
.lib-search__input:focus {
  outline: none;
  border-color: var(--primary-color);
}

/* ---------------------------------------------------------------------------
   Kruimelpad
--------------------------------------------------------------------------- */
.lib-crumbs {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  flex-wrap: wrap;
  font-size: 0.9rem;
  margin-bottom: 0.9rem;
  color: rgba(255, 255, 255, 0.75);
}
.lib-crumbs__link {
  color: inherit;
  text-decoration: none;
  font-weight: 600;
}
.lib-crumbs__link:hover {
  text-decoration: underline;
}
.lib-crumbs__current {
  color: #fff;
  font-weight: 600;
}
.lib-crumbs__sep {
  font-size: 1rem;
  opacity: 0.6;
}
/* Buiten de hero (op een lichte achtergrond) draait het kleurenschema om. */
.lib-body .lib-crumbs {
  color: var(--gray);
}
.lib-body .lib-crumbs__current {
  color: var(--secondary-color);
}

/* ---------------------------------------------------------------------------
   Vak-tegels (vakken.html + "Jouw vakken")
--------------------------------------------------------------------------- */
.lib-subject-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 1rem;
}
.lib-subject-tile {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 1rem;
  background: var(--white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  color: inherit;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.lib-subject-tile:hover {
  transform: translateY(-3px);
  border-color: var(--primary-color);
  box-shadow: var(--shadow-hover);
}
.lib-subject-tile__body {
  min-width: 0;
  display: flex;
  flex-direction: column;
}
.lib-subject-tile__name {
  font-weight: 700;
  color: var(--secondary-color);
}
.lib-subject-tile__meta {
  font-size: 0.85rem;
  color: var(--gray);
}
/* Ster-knop om een vak aan "Jouw vakken" toe te voegen. */
.lib-subject-tile__toggle {
  margin-left: auto;
  flex: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  background: var(--white);
  color: var(--gray);
  font-size: 1.15rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.18s ease;
}
.lib-subject-tile__toggle:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
}
.lib-subject-tile__toggle.is-on {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: #fff;
}

/* Horizontale rij vak-pillen (dashboard + vak-pagina). */
.lib-subject-pills {
  display: flex;
  gap: 0.6rem;
  overflow-x: auto;
  padding-bottom: 0.4rem;
  scrollbar-width: none;
}
.lib-subject-pills::-webkit-scrollbar {
  display: none;
}
.lib-subject-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.55rem 1rem 0.55rem 0.55rem;
  border-radius: 100px;
  background: var(--white);
  border: 1px solid var(--border-color);
  color: var(--secondary-color);
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: transform 0.18s ease, border-color 0.18s ease;
}
.lib-subject-pill:hover {
  transform: translateY(-2px);
  border-color: var(--primary-color);
}

/* ---------------------------------------------------------------------------
   Boeken
--------------------------------------------------------------------------- */
.lib-book-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}
.lib-book-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  width: 100%;
  text-align: left;
  background: var(--white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  color: inherit;
  font-family: inherit;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.lib-book-card:hover {
  transform: translateY(-3px);
  border-color: var(--primary-color);
  box-shadow: var(--shadow-hover);
}
.lib-book-card.is-selected {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--primary-color) 30%, transparent);
}
.lib-book-card__cover {
  flex: none;
  width: 62px;
  height: 84px;
  border-radius: 6px;
  object-fit: cover;
  background: var(--light-gray);
}
/* Placeholder-omslag als er geen afbeelding is: initiaal op een gradient. */
.lib-book-card__cover--empty {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--grad-brand);
  color: #fff;
  font-size: 1.6rem;
  font-weight: 700;
}
.lib-book-card__body {
  flex: 1 1 auto;
  min-width: 0;
}
.lib-book-card__title {
  font-weight: 700;
  color: var(--secondary-color);
  line-height: 1.25;
}
.lib-book-card__meta {
  font-size: 0.87rem;
  color: var(--gray);
  margin-top: 0.15rem;
}
.lib-book-card__note {
  font-size: 0.85rem;
  color: #16a34a;
  font-weight: 600;
  margin-top: 0.3rem;
}
.lib-book-card__check {
  flex: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 2px solid var(--border-color);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: transparent;
}
.lib-book-card.is-selected .lib-book-card__check {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: #fff;
}

/* "Voeg je boek toe"-kaart met streepjesrand. */
.lib-addbook {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-lg);
  background: none;
  color: var(--secondary-color);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.lib-addbook:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
  transform: translateY(-2px);
}
.lib-addbook__plus {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 54px;
  height: 72px;
  border: 2px solid currentColor;
  border-radius: 8px;
  font-size: 1.6rem;
}

/* Boek-snelkoppeling op de Recent-tab: omslag + eerste hoofdstukken. */
.lib-bookshortcut {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
  padding: 1.25rem;
  background: var(--white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  flex-wrap: wrap;
}
/* Meerdere boeken onder elkaar (4 en 5 vwo naast elkaar gebruiken mag). */
.lib-bookshortcut + .lib-bookshortcut {
  margin-top: 0.75rem;
}
.lib-bookshortcut__id {
  display: flex;
  gap: 1rem;
  align-items: center;
  min-width: 220px;
}
.lib-bookshortcut__title {
  font-weight: 700;
  color: var(--primary-color);
  text-decoration: none;
  font-size: 1.05rem;
}
.lib-bookshortcut__title:hover {
  text-decoration: underline;
}
.lib-bookshortcut__meta {
  font-size: 0.87rem;
  color: var(--gray);
}
.lib-bookshortcut__chapters {
  flex: 1 1 260px;
  border-left: 1px solid var(--border-color);
  padding-left: 1.5rem;
  min-width: 0;
}
.lib-bookshortcut__label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray);
  margin-bottom: 0.5rem;
}
.lib-bookshortcut__chapter {
  display: flex;
  gap: 0.75rem;
  padding: 0.3rem 0;
  color: var(--secondary-color);
  text-decoration: none;
  font-size: 0.95rem;
}
.lib-bookshortcut__chapter:hover {
  color: var(--primary-color);
}
.lib-bookshortcut__chapter b {
  color: var(--primary-color);
  min-width: 1.2rem;
}

/* ---------------------------------------------------------------------------
   Horizontale kaartrij (Meest bekeken)
--------------------------------------------------------------------------- */
.lib-scroller {
  position: relative;
}
/* Hoeveel hele kaarten er naast elkaar passen; de breedte volgt daaruit.
   Zie de uitleg bij .learners-cards in /app/partials/most-viewed/most-viewed.css —
   dit is dezelfde aanpak. Belangrijk: géén zijpadding op de rij zelf, want dat
   gebied blijft zichtbaar en daar zou de volgende kaart doorheen piepen. */
.lib-track {
  --kaarten: 4;
  --tussenruimte: 1.25rem;

  display: flex;
  gap: var(--tussenruimte);
  overflow-x: auto;
  scroll-behavior: smooth;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  padding: 0.5rem 0 1.25rem;
}
.lib-track::-webkit-scrollbar {
  display: none;
}
/* De kaart is een exacte breuk van de rij: N kaarten plus de tussenruimtes
   vullen hem precies op, zodat kaart N+1 buiten de rand valt en wordt
   weggeklipt. Een vaste breedte (zoals de `clamp()` die hier eerst stond) deelt
   bijna nooit precies op en liet daardoor altijd een half afgesneden kaart zien. */
.lib-track > .card {
  flex: 0 0 calc(
    (100% - (var(--kaarten) - 1) * var(--tussenruimte)) / var(--kaarten)
  );
  scroll-snap-align: start;
}
@media (max-width: 1150px) { .lib-track { --kaarten: 3; } }
@media (max-width: 820px)  { .lib-track { --kaarten: 2; } }
@media (max-width: 560px)  { .lib-track { --kaarten: 1; } }
/* De pijlen zweven boven de rij (zie .scroll-btn in /app/shared/scroller/scroller.css) en worden door
   /app/shared/scroller/scroller.js op display:flex gezet zodra er iets te scrollen valt. */
.lib-scroller__nav {
  display: none;
}
.lib-scroller__nav--left {
  left: 6px;
}
.lib-scroller__nav--right {
  right: 6px;
}

/* ---------------------------------------------------------------------------
   Lege / laad- / foutstaten
--------------------------------------------------------------------------- */
.lib-empty {
  text-align: center;
  padding: 3.5rem 1.5rem;
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, rgba(123, 47, 247, 0.045), transparent 65%);
  color: var(--gray);
}
.lib-empty__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 62px;
  height: 62px;
  margin-bottom: 1rem;
  border-radius: 50%;
  background: var(--grad-brand);
  color: #fff;
  font-size: 1.8rem;
}
.lib-empty__text {
  margin: 0 auto 1.4rem;
  max-width: 42ch;
  font-size: 1rem;
  color: var(--dark_gray);
}
.lib-empty__text:last-child {
  margin-bottom: 0;
}
.lib-loading {
  text-align: center;
  padding: 4rem 1.5rem;
  color: var(--gray);
}
.lib-error {
  text-align: center;
  padding: 5rem 1.5rem;
}
.lib-error h1 {
  font-size: 1.6rem;
  color: var(--secondary-color);
  margin-bottom: 0.5rem;
}
.lib-error p {
  color: var(--gray);
  margin-bottom: 1.5rem;
}

/* Kleine toast, voor "Boek toegevoegd". */
.lib-toast {
  position: fixed;
  left: 50%;
  bottom: 2rem;
  transform: translateX(-50%) translateY(12px);
  z-index: 1200;
  padding: 0.8rem 1.4rem;
  border-radius: 100px;
  background: var(--secondary-color);
  color: var(--white);
  font-weight: 600;
  box-shadow: var(--shadow-lift);
  opacity: 0;
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.lib-toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ---------------------------------------------------------------------------
   Mobiel
--------------------------------------------------------------------------- */
@media (max-width: 720px) {
  .lib-hero {
    padding: 2rem 0 1.75rem;
  }
  /* Laat "Boek toevoegen" de breedte vullen naast de + in plaats van als
     los pilletje links te blijven hangen. */
  .lib-hero__actions {
    width: 100%;
  }
  .lib-hero__actions .btn-premium {
    flex: 1 1 auto;
    justify-content: center;
    text-align: center;
  }
  .lib-fab {
    flex: none;
  }
  /* Themakop: titel boven, "Alle cursussen" eronder links — niet naast
     elkaar knijpen. */
  .lib-section__head {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
  .lib-theme {
    flex: none;
    margin-top: 1.5rem;
  }
  .lib-theme-courses__toggle {
    align-self: flex-start;
  }
  /* Chevron bij de titel houden ook als die over twee regels loopt. */
  .lib-row {
    align-items: flex-start;
  }
  .lib-course-row {
    flex-direction: column;
  }
  .lib-course-row__thumb {
    width: 100%;
  }
  .lib-bookshortcut__chapters {
    border-left: none;
    border-top: 1px solid var(--border-color);
    padding-left: 0;
    padding-top: 1rem;
  }
  .lib-row {
    padding: 0.75rem 0.9rem;
  }
  /* "3 cursussen" is the whole point of the row — keep it, but let it sit under
     the title instead of competing for width with it. */
  .lib-row {
    flex-wrap: wrap;
  }
  .lib-row__meta {
    font-size: 0.82rem;
    order: 3;
    width: 100%;
    padding-left: calc(34px + 0.9rem);
  }
  .lib-subject-grid {
    grid-template-columns: 1fr;
  }
  .lib-book-grid {
    grid-template-columns: 1fr;
  }
}

/* ---------------------------------------------------------------------------
   Image picker (forum question/answer composers — /app/shared/library/library-ui.js
   imagePicker())
--------------------------------------------------------------------------- */
.lib-imagepicker {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1rem;
}
.lib-imagepicker__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}
.lib-imagepicker__item {
  position: relative;
  width: 72px;
  height: 72px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
}
.lib-imagepicker__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.lib-imagepicker__remove {
  position: absolute;
  top: 2px;
  right: 2px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: none;
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  padding: 0;
}
.lib-imagepicker__remove i { font-size: 0.95rem; }
.lib-imagepicker__add {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 0.9rem;
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-lg);
  background: none;
  color: var(--gray);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.lib-imagepicker__add:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
}

/* ---------------------------------------------------------------------------
   Creaties: de groene +, het maak-menu, de filterbalk en de quizrijen.
   Woordenlijsten en mappen krijgen straks exact dezelfde rijen.
--------------------------------------------------------------------------- */

/* De groene knop rechtsboven in de hero. Groen omdat het "iets nieuws maken"
   is — het enige groen in deze UI, dus het valt op zonder de merkkleur te
   verdringen. */
.lib-fab {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border: 0;
  border-radius: 50%;
  background: #16b364;
  color: #fff;
  font-size: 1.6rem;
  cursor: pointer;
  box-shadow: 0 8px 20px -8px rgba(22, 179, 100, 0.8);
  transition: var(--transition);
}
.lib-fab:hover {
  background: #10a057;
  transform: translateY(-1px);
}

.lib-menu {
  position: absolute;
  z-index: 1100;
  min-width: 240px;
  padding: 0.4rem;
  border: 1px solid var(--border-color);
  border-radius: 14px;
  background: var(--white);
  box-shadow: var(--shadow-lift);
}
.lib-menu__label {
  display: block;
  padding: 0.5rem 0.65rem 0.35rem;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--gray);
}
.lib-menu__item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  width: 100%;
  padding: 0.6rem 0.65rem;
  border: 0;
  border-radius: 9px;
  background: transparent;
  color: var(--text-color);
  font-family: inherit;
  font-size: 0.94rem;
  text-align: left;
  cursor: pointer;
  transition: var(--transition);
}
.lib-menu__item i {
  font-size: 1.2rem;
  color: var(--dark_gray);
}
.lib-menu__item:hover,
.lib-menu__item:hover i {
  background: var(--light-light-gray);
  color: var(--primary-color);
}

/* Ruimte boven: zonder marge raakt het zoekveld de onderlijn van de tabstrook
   bijna, en dan lezen de twee als één samengeperst blok. */
.lib-creations__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  margin: 1.75rem 0 1.5rem;
}
.lib-creations__chips {
  display: flex;
  gap: 0.35rem;
}
.lib-creations__chip {
  padding: 0.45rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: 999px;
  background: var(--white);
  color: var(--text-color);
  font-family: inherit;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
}
.lib-creations__chip:hover {
  border-color: var(--primary-color);
}
.lib-creations__chip.is-active {
  background: var(--grad-brand);
  border-color: transparent;
  color: #fff;
}
.lib-creations__sort {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 0.7rem;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--dark_gray);
  font-family: inherit;
  font-size: 0.9rem;
  cursor: pointer;
}
.lib-creations__sort:hover {
  color: var(--primary-color);
}
/* Duwt het zoekveld naar rechts, zoals in het ontwerp. */
.lib-creations__bar .lib-search {
  margin-left: auto;
}
.lib-creations__add {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.8rem;
  padding: 0.55rem 0.8rem;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--primary-color);
  font-family: inherit;
  font-size: 0.94rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.lib-creations__add:hover {
  background: rgba(252, 5, 204, 0.08);
}
.lib-creations__add i {
  font-size: 1.2rem;
}

.lib-row--creation .lib-row__body {
  flex-direction: row;
  align-items: center;
  gap: 0.6rem;
}
.lib-tag {
  padding: 0.15rem 0.5rem;
  border-radius: 5px;
  background: var(--light-gray);
  color: var(--dark_gray);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  white-space: nowrap;
}
.lib-tag--draft {
  background: rgba(123, 47, 247, 0.16);
  color: var(--accent-purple);
}

/* ---------------------------------------------------------------------------
   Modal: "Maak een quiz"
--------------------------------------------------------------------------- */
.lib-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background: rgba(20, 6, 24, 0.55);
  backdrop-filter: blur(3px);
}
.lib-modal {
  width: min(480px, 100%);
  max-height: 90vh;
  overflow-y: auto;
  border-radius: var(--radius-lg);
  background: var(--white);
  box-shadow: var(--shadow-lift);
}
.lib-modal__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 1.25rem 0.4rem;
}
.lib-modal__title {
  margin: 0;
  font-size: 1.25rem;
}
.lib-modal__close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--dark_gray);
  font-size: 1.4rem;
  cursor: pointer;
}
.lib-modal__close:hover {
  background: var(--light-light-gray);
}
.lib-modal__body {
  padding: 0.4rem 1.5rem 1.5rem;
}
.lib-modal__body > .lib-input {
  margin-bottom: 0.9rem;
}
.lib-modal__intro {
  margin: 0 0 1.25rem;
  font-size: 0.9rem;
  color: var(--dark_gray);
  line-height: 1.55;
}
.lib-modal__subject {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.6rem 0.75rem;
  margin: 0.6rem 0;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  font-size: 0.94rem;
}
.lib-modal__field {
  display: block;
  margin-bottom: 1.1rem;
}
.lib-modal__fieldlabel {
  display: block;
  margin-bottom: 0.45rem;
  font-size: 0.85rem;
  font-weight: 600;
}
.lib-modal__toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0;
  border: 0;
  background: transparent;
  color: var(--primary-color);
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
}
.lib-modal__actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 1.1rem;
}
.lib-input {
  width: 100%;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  background: var(--light-light-gray);
  color: var(--text-color);
  font-family: inherit;
  font-size: 0.95rem;
  transition: var(--transition);
}
.lib-input:focus {
  outline: none;
  border-color: var(--primary-color);
  background: var(--white);
}
.lib-input--area {
  resize: vertical;
}
.lib-input--select {
  padding: 0.4rem;
}

/* Onderwerpen kiezen: aanklikbare chips, want een leeg <select multiple> leest
   niet als iets waar je op kunt drukken. */
.lib-topicpicker {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  max-height: 148px;
  overflow-y: auto;
  padding: 0.6rem;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  background: var(--light-light-gray);
}
.lib-topicpicker__chip {
  padding: 0.35rem 0.8rem;
  border: 1px solid var(--border-color);
  border-radius: 999px;
  background: var(--white);
  color: var(--text-color);
  font-family: inherit;
  font-size: 0.86rem;
  cursor: pointer;
  transition: var(--transition);
}
.lib-topicpicker__chip:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
}
.lib-topicpicker__chip.is-on {
  background: var(--grad-brand);
  border-color: transparent;
  color: #fff;
}
.lib-btn {
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 0.6rem 1.5rem;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.lib-btn--primary {
  background: var(--grad-brand);
  color: #fff;
}
.lib-btn--primary:hover {
  filter: brightness(1.08);
}
.lib-btn--primary:disabled {
  opacity: 0.6;
  cursor: wait;
}

@media (max-width: 600px) {
  .lib-creations__bar .lib-search {
    margin-left: 0;
    width: 100%;
  }
}

/* Terugknop in de hero van de boekenkiezer. Zie renderHero() in boeken.js. */
.lib-hero__back {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  margin-bottom: 0.75rem;
  color: inherit;
  opacity: 0.85;
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
}
.lib-hero__back:hover {
  opacity: 1;
  text-decoration: underline;
}
.lib-hero__back i {
  font-size: 1.2rem;
}

/* ---------------------------------------------------------------------------
   "Ik kan mijn boek niet vinden" — zie app/features/boeken/boek-niet-gevonden.js
--------------------------------------------------------------------------- */
.bnf__overlay {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: grid;
  place-items: center;
  padding: 1.25rem;
  background: rgba(10, 6, 16, 0.6);
  backdrop-filter: blur(3px);
}
.bnf {
  width: min(560px, 100%);
  max-height: min(90vh, 720px);
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-lg);
  background: var(--white);
  color: var(--text-color);
  box-shadow: var(--shadow-lift);
  overflow: hidden;
}
.bnf__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem 1.25rem 0.9rem;
}
.bnf__title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--secondary-color);
}
.bnf__close {
  flex: none;
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--gray);
  font-size: 1.35rem;
  cursor: pointer;
}
.bnf__close:hover {
  background: var(--light-gray);
  color: var(--text-color);
}
.bnf__tabs {
  display: flex;
  gap: 0.25rem;
  padding: 0 1.25rem;
  border-bottom: 1px solid var(--border-color);
}
.bnf__tab {
  padding: 0.6rem 0.85rem;
  border: 0;
  border-bottom: 2px solid transparent;
  background: none;
  color: var(--gray);
  font: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
}
.bnf__tab:hover {
  color: var(--text-color);
}
.bnf__tab.is-active {
  color: var(--primary-color);
  border-bottom-color: var(--primary-color);
}
.bnf__body {
  padding: 1.25rem;
  overflow-y: auto;
}
.bnf__pane {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}
.bnf__lead {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--gray);
  text-align: center;
}
.bnf__art {
  display: grid;
  place-items: center;
  padding: 1.5rem 0;
  font-size: 3.5rem;
  color: var(--primary-color);
  opacity: 0.35;
}
.bnf__cta {
  align-self: center;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}
.bnf__form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.bnf__field {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.bnf__label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--gray);
}
.bnf__input {
  width: 100%;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  background: var(--white);
  color: var(--text-color);
  font: inherit;
  font-size: 0.9rem;
}
.bnf__input:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: -1px;
}
.bnf__textarea {
  resize: vertical;
  min-height: 70px;
}
.bnf__status {
  margin: 0;
  font-size: 0.83rem;
  color: var(--gray);
}
.bnf__status.is-error {
  color: #d93025;
}
.bnf__done {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  padding: 1.5rem 0;
  text-align: center;
}
.bnf__done-icon {
  font-size: 2.5rem;
  color: #1e8e3e;
}
.bnf__done small,
.bnf__done span {
  font-size: 0.87rem;
  color: var(--gray);
}
.bnf__choices {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.bnf__choice {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.9rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  color: var(--text-color);
  text-decoration: none;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.bnf__choice:hover {
  border-color: var(--primary-color);
  transform: translateY(-2px);
}
.bnf__choice-icon {
  flex: none;
  font-size: 1.5rem;
  color: var(--primary-color);
}
.bnf__choice-text {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  min-width: 0;
}
.bnf__choice-text strong {
  font-size: 0.93rem;
}
.bnf__choice-text small {
  font-size: 0.8rem;
  line-height: 1.4;
  color: var(--gray);
}
.bnf__choice-arrow {
  flex: none;
  color: var(--gray);
}

/* =========================================================================
   Examenstream-strook op de vakpagina
   ========================================================================= */

.vak-exam-strip {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    max-width: 1100px;
    margin: 1rem auto 0;
    padding: 0.8rem 1.15rem;
    border-radius: var(--radius-lg, 14px);
    border: 1px solid color-mix(in srgb, var(--primary-color) 30%, transparent);
    background: color-mix(in srgb, var(--primary-color) 8%, transparent);
    color: var(--text-color);
    text-decoration: none;
}
.vak-exam-strip.is-live {
    border-color: color-mix(in srgb, #e5484d 42%, transparent);
    background: color-mix(in srgb, #e5484d 10%, transparent);
}
.vak-exam-strip > .bx { font-size: 1.3rem; color: var(--primary-color); flex: none; }
.vak-exam-strip.is-live > .bx { color: #e5484d; }
.vak-exam-strip__text { flex: 1 1 auto; font-size: 0.92rem; line-height: 1.4; min-width: 0; }
.vak-exam-strip__cta { flex: none; font-weight: 700; font-size: 0.82rem; color: var(--primary-color); }

@media (max-width: 700px) {
    .vak-exam-strip { margin-left: 1rem; margin-right: 1rem; }
    .vak-exam-strip__cta { display: none; }
}