/* A persistent, page-wide campus/library photograph. The fixed pseudo-element
   stays behind every section while scrolling; no background-attachment hacks. */
:root { --library-background-tint: rgba(238, 247, 250, .24); }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) { --library-background-tint: rgba(8, 21, 27, .58); }
}
:root[data-theme="dark"] { --library-background-tint: rgba(8, 21, 27, .58); }
body.library-page {
  position: relative;
  isolation: isolate;
  min-height: 100vh;
  background: transparent;
}
body.library-page::before {
  content: "";
  position: fixed;
  z-index: -2;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--library-background-tint), var(--library-background-tint)),
    url("../img/background.jfif");
  background-position: center center, center center;
  background-size: cover, cover;
  background-repeat: no-repeat, no-repeat;
}
body.library-page::after {
  content: "";
  position: fixed;
  z-index: -1;
  inset: auto auto 0 0;
  width: min(38rem, 55vw);
  height: 15rem;
  pointer-events: none;
  opacity: .12;
  background:
    linear-gradient(90deg, transparent 0 7%, rgba(46, 117, 155, .12) 7% 8%, transparent 8% 18%, rgba(46, 117, 155, .10) 18% 19%, transparent 19% 30%, rgba(46, 117, 155, .10) 30% 31%, transparent 31%),
    linear-gradient(to top, rgba(46, 117, 155, .12) 0 7px, transparent 7px 100%);
  mask-image: linear-gradient(90deg, #000, transparent 90%);
}
@media (max-width: 48rem) {
  :root { --library-background-tint: rgba(238, 247, 250, .38); }
  :root[data-theme="dark"] { --library-background-tint: rgba(8, 21, 27, .64); }
}
body.library-page > main { background: transparent; }
body.library-page .library-content,
body.library-page .library-main-column { background: transparent; }

body.library-page .section-nav {
  background: color-mix(in srgb, var(--color-surface) 86%, transparent);
}
body.library-page .site-footer {
  background: color-mix(in srgb, var(--color-surface) 82%, transparent);
}

/* Sticky header keeps search available after the page is scrolled. */
.site-header--library {
  position: sticky;
  top: 0;
  z-index: 60;
  border-bottom: 1px solid var(--color-border);
  background: color-mix(in srgb, var(--color-surface) 86%, transparent);
  box-shadow: 0 5px 22px rgba(21, 48, 62, .07);
}
.site-header--library .site-header__inner { align-items: center; }
.site-header--library .brand { gap: var(--space-3); }
.site-header--library .brand__mark {
  width: 3.35rem;
  height: 3.35rem;
  padding: .18rem;
  border-radius: 1rem;
  background: linear-gradient(145deg, #e2f3ff, #fff1d8);
  filter: drop-shadow(0 3px 5px rgba(29, 73, 100, .15));
}
.site-header--library .brand__name {
  max-width: 15rem;
  font-size: clamp(1rem, 1.45vw, 1.22rem);
  line-height: 1.12;
}
.site-header--library .global-search {
  border-width: 1.5px;
  box-shadow: 0 2px 10px rgba(29, 73, 100, .05);
}
.site-header--library .global-search:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-primary) 16%, transparent);
}


.library-page .icon { transition: transform .2s ease, color .2s ease, filter .2s ease; }
.library-page a:hover > .icon, .library-page button:hover > .icon,
.library-page a:focus-visible > .icon, .library-page button:focus-visible > .icon {
  transform: translateY(-1px) scale(1.1);
  filter: drop-shadow(0 2px 3px rgba(34, 89, 123, .2));
}

/* Direction panels: the provided illustrations remain visible without hard cropping. */
.direction-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr));
  gap: clamp(1rem, 2vw, 1.4rem);
}
.direction-card {
  --direction-accent: #247cbb;
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: 1.15rem;
  background: color-mix(in srgb, var(--color-surface) 84%, transparent);
  box-shadow: 0 5px 22px rgba(24, 54, 69, .07);
  transition: border-color .22s ease, box-shadow .22s ease, transform .22s ease;
}
.direction-card--it { --direction-accent: #287ed0; }
.direction-card--science { --direction-accent: #179c83; }
.direction-card--tourism { --direction-accent: #de8d35; }
.direction-card--education { --direction-accent: #8058c8; }
.direction-card--economics { --direction-accent: #278c68; }
.direction-card__main {
  display: grid;
  gap: .75rem;
  padding: 1rem;
  color: var(--color-text);
  text-decoration: none;
}
.direction-card__visual {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 9rem;
  overflow: hidden;
  border-radius: .9rem;
  background: radial-gradient(ellipse at 50% 45%, color-mix(in srgb, var(--direction-accent) 14%, var(--color-surface)), transparent 72%);
}
.direction-card__image {
  display: block;
  width: min(100%, 20rem);
  height: 10rem;
  object-fit: contain;
  object-position: center;
  filter: drop-shadow(0 8px 12px rgba(24, 54, 69, .13));
  transition: transform .35s cubic-bezier(.2,.75,.25,1), filter .35s ease;
}
.direction-card__symbol {
  position: absolute;
  inset: auto 1rem 1rem auto;
  display: grid;
  place-items: center;
  width: 3.1rem;
  height: 3.1rem;
  border: 1px solid color-mix(in srgb, var(--direction-accent) 22%, white);
  border-radius: 1rem;
  background: color-mix(in srgb, var(--color-surface) 90%, transparent);
  color: var(--direction-accent);
  box-shadow: 0 5px 16px rgba(25, 53, 70, .12);
}
.direction-card__symbol .icon { width: 1.8rem; height: 1.8rem; grid-area: 1 / 1; transition: opacity .2s ease, transform .3s ease; }
.direction-card__symbol .icon--open { opacity: 0; transform: rotateY(90deg) scale(.75); }
.direction-card__count {
  position: absolute;
  inset: 1rem auto auto 1rem;
  min-width: 2rem;
  padding: .25rem .6rem;
  border-radius: 999px;
  background: var(--direction-accent);
  color: white;
  font-size: .78rem;
  font-weight: 800;
  text-align: center;
  box-shadow: 0 3px 10px rgba(25, 53, 70, .14);
}
.direction-card__heading { font-size: 1.06rem; font-weight: 800; line-height: 1.28; }
.direction-card__hint { display: inline-flex; align-items: center; gap: .4rem; color: var(--direction-accent); font-size: .86rem; font-weight: 750; }
.direction-card__hint .icon { width: 1rem; height: 1rem; }
.direction-card__categories {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
  margin: 0;
  padding: 0 1rem 1rem;
  list-style: none;
}
.direction-card__categories a {
  display: inline-flex;
  align-items: center;
  min-height: 2rem;
  padding: .25rem .65rem;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-surface-raised);
  color: var(--color-text-muted);
  font-size: .76rem;
  text-decoration: none;
}
.direction-card__categories a:hover { border-color: var(--direction-accent); color: var(--direction-accent); }
.direction-card__empty { margin: 0; padding: 0 1rem 1rem; color: var(--color-text-muted); font-size: .8rem; }
.home-other-categories { --direction-accent: var(--color-primary); margin-block-start: var(--space-5); }
.home-other-categories h3 { margin: 0 0 .6rem; font-size: 1rem; }
.home-other-categories .direction-card__categories { padding: 0; }

/* Every library section has its own colour, hover glyph and motion. */
.section-nav__link { overflow: visible; }
.section-nav__icon-wrap {
  position: relative; display: grid; flex: 0 0 1.8rem; width: 1.8rem; height: 1.8rem;
  place-items: center; overflow: visible; perspective: 7rem;
}
.section-nav__icon-wrap .icon {
  grid-area: 1 / 1; width: 1.45rem; height: 1.45rem; stroke-width: 2.1;
  transition: transform .28s cubic-bezier(.2,.75,.25,1), opacity .18s ease, color .18s ease;
}
.section-nav__icon-wrap .icon--hover { opacity: 0; color: var(--nav-accent, currentColor); transform: scale(.72) rotate(-12deg); }
.section-nav__link[data-icon="book-open"] { --nav-accent: #287ed0; }
.section-nav__link[data-icon="file-text"] { --nav-accent: #159b83; }
.section-nav__link[data-icon="book-open-check"] { --nav-accent: #8058c8; }
.section-nav__link[data-icon="video-play"] { --nav-accent: #d58b2f; }
.section-nav__link[data-icon="headphones"] { --nav-accent: #d65d78; }
.section-nav__link[data-icon="heart"] { --nav-accent: #dc5b72; }
.section-nav__link[data-icon="download"] { --nav-accent: #218d72; }
.section-nav__link[data-icon="history"] { --nav-accent: #8a6ac7; }
.section-nav__link[data-icon="book-stack"] { --nav-accent: #317b9c; }
.section-nav__link[data-icon="upload"] { --nav-accent: #f0bd4d; }
.section-nav__link .icon--closed { color: var(--nav-accent, currentColor); }
.section-nav__link:hover .icon--closed,
.section-nav__link:focus-visible .icon--closed { opacity: 0; transform: scale(.72) rotate(12deg); }
.section-nav__link:hover .icon--hover,
.section-nav__link:focus-visible .icon--hover { opacity: 1; transform: scale(1) rotate(0); }
.section-nav__link:hover .section-nav__icon-wrap,
.section-nav__link:focus-visible .section-nav__icon-wrap { filter: drop-shadow(0 3px 4px rgba(32, 83, 119, .22)); }
.section-nav__link--upload .section-nav__icon-wrap .icon { color: inherit; }

@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  .section-nav__link:hover .icon--hover,
  .section-nav__link:focus-visible .icon--hover { animation-duration: .56s; animation-timing-function: cubic-bezier(.2,.75,.25,1); }
  .section-nav__link[data-icon="book-open"]:hover .icon--hover,
  .section-nav__link[data-icon="book-open"]:focus-visible .icon--hover { animation-name: nav-book-search; }
  .section-nav__link[data-icon="file-text"]:hover .icon--hover,
  .section-nav__link[data-icon="file-text"]:focus-visible .icon--hover { animation-name: nav-file-scan; }
  .section-nav__link[data-icon="book-open-check"]:hover .icon--hover,
  .section-nav__link[data-icon="book-open-check"]:focus-visible .icon--hover { animation-name: nav-guide-check; }
  .section-nav__link[data-icon="video-play"]:hover .icon--hover,
  .section-nav__link[data-icon="video-play"]:focus-visible .icon--hover { animation-name: nav-learning-rise; }
  .section-nav__link[data-icon="headphones"]:hover .icon--hover,
  .section-nav__link[data-icon="headphones"]:focus-visible .icon--hover { animation-name: nav-audio-bounce; }
  .section-nav__link[data-icon="heart"]:hover .icon--hover,
  .section-nav__link[data-icon="heart"]:focus-visible .icon--hover { animation-name: nav-favorite-beat; }
  .section-nav__link[data-icon="download"]:hover .icon--hover,
  .section-nav__link[data-icon="download"]:focus-visible .icon--hover { animation-name: nav-download-drop; }
  .section-nav__link[data-icon="history"]:hover .icon--hover,
  .section-nav__link[data-icon="history"]:focus-visible .icon--hover { animation-name: nav-history-turn; }
  .section-nav__link[data-icon="book-stack"]:hover .icon--hover,
  .section-nav__link[data-icon="book-stack"]:focus-visible .icon--hover { animation-name: nav-stack-shift; }
  .section-nav__link[data-icon="upload"]:hover .icon--hover,
  .section-nav__link[data-icon="upload"]:focus-visible .icon--hover { animation-name: nav-upload-lift; }
}
@keyframes nav-book-search { 0%,100% { transform: scale(1) rotate(0); } 42% { transform: scale(1.16) rotate(-9deg); } 72% { transform: scale(.96) rotate(4deg); } }
@keyframes nav-file-scan { 0%,100% { transform: translateY(0); } 35% { transform: translateY(-3px) scale(1.06); } 70% { transform: translateY(1px); } }
@keyframes nav-guide-check { 0%,100% { transform: rotateY(0) scale(1); } 40% { transform: rotateY(55deg) scale(1.12); } 72% { transform: rotateY(-12deg) scale(.98); } }
@keyframes nav-learning-rise { 0%,100% { transform: translateY(0) scale(1); } 45% { transform: translateY(-4px) scale(1.08); } }
@keyframes nav-audio-bounce { 0%,100% { transform: translateY(0); } 28% { transform: translateY(-3px); } 56% { transform: translateY(1px); } 78% { transform: translateY(-2px); } }
@keyframes nav-favorite-beat { 0%,100% { transform: scale(1); } 34% { transform: scale(1.2); } 58% { transform: scale(.94); } 78% { transform: scale(1.12); } }
@keyframes nav-download-drop { 0%,100% { transform: translateY(0); } 35% { transform: translateY(3px); } 72% { transform: translateY(-2px); } }
@keyframes nav-history-turn { 0%,100% { transform: rotate(0); } 45% { transform: rotate(-28deg); } 75% { transform: rotate(8deg); } }
@keyframes nav-stack-shift { 0%,100% { transform: translateX(0); } 40% { transform: translateX(3px) rotate(5deg); } 75% { transform: translateX(-1px) rotate(-2deg); } }
@keyframes nav-upload-lift { 0%,100% { transform: translateY(0) scale(1); } 42% { transform: translateY(-4px) scale(1.12); } 72% { transform: translateY(1px) scale(.98); } }

/* Softer cover edge: the artwork melts into the page rather than sitting in a hard frame. */
.material-detail__cover {
  overflow: visible;
  border: 0;
  border-inline-start: 0;
  border-radius: 1rem;
  background: transparent;
  box-shadow: none;
}
.material-detail__cover::before {
  content: "";
  position: absolute;
  inset: 8% 8%;
  border-radius: 50%;
  background: radial-gradient(ellipse, color-mix(in srgb, var(--color-primary) 12%, transparent), transparent 72%);
  filter: blur(14px);
}
.material-detail__cover img {
  inset: 3%;
  width: 94%;
  height: 94%;
  object-fit: contain;
  border-radius: .25rem;
  filter: drop-shadow(0 9px 12px rgba(21, 46, 59, .22));
  -webkit-mask-image: radial-gradient(ellipse 75% 77% at 50% 50%, #000 68%, rgba(0,0,0,.88) 81%, transparent 100%);
  mask-image: radial-gradient(ellipse 75% 77% at 50% 50%, #000 68%, rgba(0,0,0,.88) 81%, transparent 100%);
}
.material-detail__cover > span {
  position: relative;
  z-index: 1;
  color: var(--color-primary);
}
.material-detail__cover { min-height: 14rem; }

@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  .direction-card:hover { transform: translateY(-3px); border-color: color-mix(in srgb, var(--direction-accent) 50%, var(--color-border)); box-shadow: 0 12px 28px rgba(24, 54, 69, .12); }
  .direction-card:hover .direction-card__image { transform: scale(1.045) rotate(-1deg); filter: drop-shadow(0 12px 15px rgba(24, 54, 69, .2)); }
  .direction-card:hover .direction-card__symbol .icon--closed { opacity: 0; transform: rotateY(-90deg) scale(.7); }
  .direction-card:hover .direction-card__symbol .icon--open { opacity: 1; transform: rotateY(0) scale(1); }
}
@media (max-width: 52rem) {
  .site-header--library .site-header__inner { grid-template-columns: minmax(0, 1fr) auto; }
  .site-header--library .global-search { grid-column: 1 / -1; grid-row: 2; max-width: none; }
  .site-header--library .header-actions { grid-column: 2; grid-row: 1; }
  .site-header--library .brand__mark { width: 2.8rem; height: 2.8rem; }
}
@media (max-width: 30rem) {
  .site-header--library .brand__name {
    position: static;
    width: auto;
    height: auto;
    margin: 0;
    overflow: visible;
    clip: auto;
    white-space: normal;
    max-width: 8.5rem;
    font-size: .82rem;
    line-height: 1.1;
  }
  .site-header--library .brand__mark { width: 2.5rem; height: 2.5rem; }
  .site-header--library .global-search { gap: .3rem; padding-inline: .6rem .3rem; }
  .site-header--library .global-search .btn { padding-inline: .65rem; }
}
@media (prefers-reduced-motion: reduce) {
  .direction-card, .direction-card__image, .direction-card__symbol .icon,
  .section-nav__icon-wrap .icon {
    transition: none !important;
  }
}


/* A calm, tactile search focus state: a small lift and a soft, animated ring. */
.site-header--library .global-search {
  border-radius: 999px;
  transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease, background-color .22s ease;
}
.site-header--library .global-search:hover {
  border-color: color-mix(in srgb, var(--color-primary) 38%, var(--color-border-input));
  box-shadow: 0 5px 16px rgba(29, 73, 100, .08);
}
.site-header--library .global-search:focus-within {
  transform: translateY(-2px) scale(1.006);
  outline: 3px solid color-mix(in srgb, var(--color-primary) 18%, transparent);
  outline-offset: 3px;
  box-shadow: 0 0 0 6px color-mix(in srgb, var(--color-primary) 6%, transparent), 0 12px 24px rgba(29, 73, 100, .13);
}
.site-header--library .global-search > .icon {
  color: var(--color-primary);
  transition: transform .24s ease, color .24s ease;
}
.site-header--library .global-search:focus-within > .icon { transform: scale(1.1) rotate(-8deg); }
.site-header--library .global-search input { padding-inline: .25rem; }
.site-header--library .global-search .btn { border-radius: 999px; }

/* Home hero: the campus/building backdrop remains visible behind the text;
   the open-book artwork is a separate, dominant image on the right. */
.home-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--color-primary) 22%, var(--color-border));
  border-inline-start: 3px solid var(--color-margin);
  border-radius: 1.5rem 2.8rem 1.5rem 2.4rem;
  background: color-mix(in srgb, var(--color-surface) 24%, transparent);
  box-shadow: 0 14px 36px rgba(19, 49, 67, .12);
  -webkit-backdrop-filter: blur(2px);
  backdrop-filter: blur(2px);
}
.home-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(90deg,
    rgba(247, 252, 254, .54) 0%,
    rgba(244, 251, 253, .42) 39%,
    rgba(235, 247, 251, .18) 66%,
    rgba(235, 247, 251, .06) 100%);
}
:root[data-theme="dark"] .home-hero::before {
  background: linear-gradient(90deg,
    rgba(10, 25, 30, .91) 0%,
    rgba(10, 25, 30, .82) 40%,
    rgba(10, 25, 30, .48) 70%,
    rgba(10, 25, 30, .30) 100%);
}
.home-hero__layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(19rem, .98fr);
  align-items: center;
  gap: clamp(var(--space-5), 4vw, var(--space-7));
}
.home-hero__content { min-width: 0; }
.home-hero__eyebrow {
  margin-block-end: var(--space-2);
  color: var(--color-primary);
  font-size: var(--text-sm);
  font-weight: 800;
  letter-spacing: .04em;
  text-transform: uppercase;
}
.home-hero__visual {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  width: 100%;
  min-width: 0;
  aspect-ratio: 735 / 412;
  margin: 0;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, .68);
  border-radius: 2.4rem 3.8rem 2.4rem 3.8rem;
  background: var(--color-surface-sunken, var(--color-surface));
  box-shadow: 0 18px 42px rgba(19, 49, 67, .20);
}
.home-hero__visual::before {
  content: "";
  position: absolute;
  z-index: 2;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(135deg, rgba(16, 49, 67, .08), transparent 40%, rgba(16, 49, 67, .12));
}
.home-hero__visual::after {
  content: "";
  position: absolute;
  z-index: 3;
  inset: .6rem;
  pointer-events: none;
  border: 1px solid rgba(255, 255, 255, .42);
  border-radius: 1.8rem 3rem 1.8rem 3rem;
}
.home-hero__visual > .home-hero__main-image {
  position: absolute;
  z-index: 1;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  clip-path: polygon(0 0, 100% 0, 100% 92%, 96% 100%, 0 100%);
  pointer-events: none;
  transition: transform .6s cubic-bezier(.2, .75, .25, 1), filter .6s ease;
  filter: saturate(1.03) contrast(1.02);
}
.home-hero__visual figcaption {
  position: absolute;
  z-index: 4;
  inset: auto 1rem 1rem auto;
  display: inline-flex;
  max-width: calc(100% - 2rem);
  margin: 0;
  padding: .48rem .9rem;
  border: 1px solid rgba(255, 255, 255, .65);
  border-radius: 999px;
  background: color-mix(in srgb, var(--color-surface) 88%, transparent);
  color: var(--color-text);
  box-shadow: 0 4px 14px rgba(19, 49, 67, .16);
  font-size: var(--text-sm);
}
@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  .home-hero:hover .home-hero__visual > .home-hero__main-image {
    transform: scale(1.035);
    filter: saturate(1.08) contrast(1.04);
  }
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .home-hero::before {
    background: linear-gradient(90deg,
      rgba(10, 25, 30, .91) 0%,
      rgba(10, 25, 30, .82) 40%,
      rgba(10, 25, 30, .48) 70%,
      rgba(10, 25, 30, .30) 100%);
  }
}
@media (max-width: 58rem) {
  .home-hero__layout { grid-template-columns: minmax(0, 1fr); }
  .home-hero__visual { width: 100%; max-width: 44rem; }
  .home-hero__visual figcaption { inset: auto .7rem .7rem; font-size: var(--text-xs); }
}
@media (max-width: 34rem) {
  .home-hero { border-radius: 1.15rem 1.8rem 1.15rem 1.8rem; }
  .home-hero__visual { border-radius: 1.25rem 2rem 1.25rem 2rem; }
}
@media (prefers-reduced-motion: reduce) {
  .home-hero:hover .home-hero__visual > .home-hero__main-image,
  .home-hero__visual > .home-hero__main-image { transition: none !important; transform: none !important; }
}

/* Distinct, readable catalogue metadata on the book detail page. */
.material-detail__cover {
  width: min(100%, 18.5rem);
  max-width: 18.5rem;
  min-height: 18rem;
  justify-self: center;
}
@media (min-width: 40rem) {
  .material-detail { grid-template-columns: minmax(12rem, 18.5rem) minmax(0, 1fr); }
  .material-detail__cover { justify-self: start; }
}
.material-detail__badges {
  align-items: stretch;
  gap: .65rem;
  margin-block: 1rem 1.25rem;
}
.material-detail__badge {
  display: grid;
  align-content: start;
  gap: .2rem;
  min-width: 7.5rem;
  max-width: 100%;
  padding: .55rem .8rem;
  border: 1px solid var(--color-border);
  border-radius: .85rem;
  background: var(--color-surface-raised);
  color: var(--color-text);
  box-shadow: 0 3px 10px rgba(22, 55, 73, .06);
}
.material-detail__badge small {
  color: var(--color-text-muted);
  font-size: .68rem;
  font-weight: 750;
  letter-spacing: .045em;
  text-transform: uppercase;
}
.material-detail__badge strong { font-size: .9rem; line-height: 1.3; overflow-wrap: anywhere; }
.material-detail__badges .material-detail__badge--type { border-color: color-mix(in srgb, #287ed0 34%, var(--color-border)); background: color-mix(in srgb, #287ed0 9%, var(--color-surface)); }
.material-detail__badges .material-detail__badge--direction { border-color: color-mix(in srgb, #159b83 40%, var(--color-border)); background: color-mix(in srgb, #159b83 11%, var(--color-surface)); }
.material-detail__badges .material-detail__badge--category { border-color: color-mix(in srgb, #8058c8 40%, var(--color-border)); background: color-mix(in srgb, #8058c8 10%, var(--color-surface)); }
.material-detail__badges .material-detail__badge--access { border-color: color-mix(in srgb, #d58b2f 38%, var(--color-border)); background: color-mix(in srgb, #d58b2f 10%, var(--color-surface)); }
.material-detail__badges .material-detail__badge--year { border-color: color-mix(in srgb, #278c68 38%, var(--color-border)); background: color-mix(in srgb, #278c68 10%, var(--color-surface)); }
.file-login-prompt {
  display: grid;
  justify-items: start;
  gap: .35rem;
  max-width: 25rem;
  padding: .8rem 1rem;
  border: 1px solid color-mix(in srgb, var(--color-primary) 34%, var(--color-border));
  border-radius: .9rem;
  background: color-mix(in srgb, var(--color-primary) 7%, var(--color-surface));
}
.file-login-prompt strong { color: var(--color-primary); font-size: .88rem; }
.file-login-prompt span, .file-login-prompt small { color: var(--color-text-muted); font-size: .78rem; line-height: 1.45; }
.file-login-prompt .btn { margin-block-start: .25rem; }

.material-detail__authors {
  margin-block: .65rem .95rem;
  padding: .65rem .85rem;
  border-inline-start: 4px solid #287ed0;
  border-radius: .55rem;
  background: color-mix(in srgb, #287ed0 8%, var(--color-surface));
  color: var(--color-text) !important;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.55;
}
.material-detail__staff-actions { margin-block: .6rem .9rem; }
.material-detail__staff-actions .btn { font-weight: 800; }