:root {
  color-scheme: light dark;
  --black: #222;
  --white: #f5f5f5;
  --salcc-green: #224d07;
  --green: #c69121;
  --darkgreen: #7b6929;
  --orange: #e1ad12;
  --orange2: #ffc300;
  --primaryFont: 'Karla';
  --secondaryFont: Manrope;
}

/* body */

body {
  font-family: var(--primaryFont);
  font-size: 1rem;
}

#referenceList .reference-list-item .heading,
h1,
h2,
h3,
h4 {
  font-family: var(--secondaryFont);
}

h1,
#referenceList .reference-list-item .heading {
  font-weight: 600;
}

a:not(.btn),
a:not(.btn):hover {
  color: var(--green);
}

a:not(.btn):hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* input:not([type=submit], [type=radio], [type=radio]) {
  padding: 0.25em 0.5em;
  font-size: 0.95em;
} */

/* search */

.portalSearchBar {
  flex-grow: 1;
  font-size: 0.9rem;
  padding: 0.25rem 0.75rem;
  transition: 0.25s ease;
  background-color: rgba(0, 0, 0, 0.65);
  color: var(--white);
}

.portalSearchBar:not(:autofill)::-webkit-search-cancel-button {
  filter: brightness(0) invert(1);
}

.portalSearchSubmit,
.portalSearchBar {
  border: none;
  border-radius: 0;
}

.portalSearchSubmit[disabled] {
  filter: saturate(0) brightness(0.75) contrast(2);
}

.portalSearchBar:focus {
  outline: 2px solid var(--green);
}

/* navbar */

#navbarExternalWrapper {
  --navBg: var(--green);
  background-color: var(--navBg);
}

#portalNavbar .dropdown-menu {
  background-color: var(--navBg);
}

#portalNavbar .nav-link,
#portalNavbar .dropdown-menu .dropdown-item {
  color: var(--white);
}

#portalNavbar .dropdown-menu .dropdown-item:hover {
  color: var(--black);
}

#portalNavbar {
  font-family: var(--secondaryFont);
}

#portalNavbar .container-fluid {
  padding-inline: 1rem;
}

@media screen and (min-width: 992px) {
  #portalNavbar .nav-link,
  #portalNavbar .dropdown-item {
    font-size: clamp(14px, calc(0.95rem - 0.25vw), 0.1rem);
    font-weight: 400;
    letter-spacing: 0.175px;
  }

  .navbar-expand-lg .navbar-nav {
    flex-wrap: wrap;
  }
}

@media screen and (min-width: 768px) and (prefers-color-scheme: dark) {
  #portalNavbar .container-fluid {
    padding-inline: 0;
  }
}

#portalNavbarLogo {
  max-width: 90px;
}

#portalNavbar [aria-label='Toggle navigation'] {
  --dim: 40px;
  color: var(--white);
  padding: 0;
  width: var(--dim);
  height: var(--dim);
  box-shadow: 0 0 0 2px var(--white);
  transition: 0.5s ease;
}

#portalNavbar [aria-label='Toggle navigation'][aria-expanded='true'] {
  color: var(--navbarBg);
  background-color: var(--white);
}

#portalNavbar .navbar-toggler-icon {
  height: unset;
}

/* floating navigation */

#floatingNavigation {
  position: fixed;
  inset: auto var(--offsetX, -4rem) var(--offsetY, 2rem) auto;
  transition: inset 0.75s ease-in-out;
}

#floatingNavigation nav {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

#floatingNavigation .btn {
  --green: var(--orange2);
  color: var(--black);
  --dim: 50px;
  display: grid;
  place-items: center;
  width: var(--dim);
  height: var(--dim);
  border-width: 3px;
  box-shadow: 0 0 12px rgba(0, 0, 0, 0.05);
}

#floatingNavigation .btn:hover {
  --green: var(--black);
}

/* header */

#pageHeader {
  margin-block: 1.5rem;
}

h1:has(.breadcrumb-link) {
  line-height: 1;
}

.breadcrumb-link {
  font-size: 1rem;
  font-weight: 300;
  margin-block-end: 0.5rem;
}

.breadcrumb-link a {
  text-underline-offset: 3px;
  position: relative;
  transition: 0.5s ease;
}

.breadcrumb-link a::before {
  content: '\f053';
  font-family: FontAwesome;
  font-size: 0.9em;
  position: absolute;
  inset: 50% auto auto var(--insetX, 1em);
  translate: 0 calc(-50% + 1.25px);
  opacity: 0;
  transition: inset 2s ease, opacity 0.5s ease;
}

.breadcrumb-link a:hover {
  padding-left: 0.5em;
}

.breadcrumb-link a:hover::before {
  opacity: 1;
  --insetX: -0.3em;
  transition: opacity 1.25s ease, inset 0.5s ease;
}

/* reference research */

#refSearchWrapper {
  margin-block: 0.25rem 1.5rem;
}

#referenceSearchInput {
  width: 100%;
  font-size: 0.9rem;
  font-family: var(--secondaryFont);
  padding: 0.25rem 0.5rem;
}

#referenceSearchInput::placeholder {
  font-family: var(--primaryFont);
  font-style: italic;
}

/* reference list */

#referenceList {
  padding: 0;
}

.reference-list-item {
  list-style-type: none;
  background-color: white;
  padding: 0.75rem;
  box-shadow: 0 0 12px rgba(0, 0, 0, 0.05);
  height: var(--itemHeight, auto);
  transition: 0.5s ease;
  overflow: hidden;
}

.reference-list-item.obscure {
  margin-block-start: 0;
  pointer-events: none;
  box-shadow: none;
  padding-block: 0;
}

.reference-list-item.obscure * {
  transition: 0.75s ease filter;
}

.reference-list-item.obscure * {
  filter: opacity(0);
}

#referenceList .reference-list-item:not(:first-of-type) {
  margin-block-start: 1.5rem;
}

#referenceList .reference-list-item.obscure:not(:first-of-type) {
  margin-block-start: 0;
}

.reference-list-item .heading {
  font-size: 1.2rem;
  margin-block-end: 0.25em;
}

.reference-list-item .description {
  font-weight: 400;
  font-size: 0.95rem;
}

.reference-list-item .description p {
  margin-block: 0.75em;
  line-height: 1.5;
}

/* link buttons */

.btn-primary {
  background-color: var(--green);
}

.btn-primary,
.btn-primary:hover {
  border: 2px solid var(--green);
}

.btn-primary:hover {
  background-color: var(--white);
  color: var(--green);
}

.btn-secondary {
  border: 2px solid var(--black);
}

.btn-secondary,
.btn-secondary:hover {
  background-color: transparent;
}

#referenceList .reference-list-item .link-wrapper {
  padding-block: 0.75rem 0.25rem;
  display: flex;
  flex-direction: row;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.link-button {
  --dim: 40px;
  font-size: 0.8rem;
  font-family: var(--secondaryFont);
  letter-spacing: 0.8px;
  font-weight: 600;
}

.link-button:not(:has(.fa)) {
  width: fit-content;
  height: 0%;
}

.link-button:has(.fa) {
  height: var(--dim);
  width: var(--dim);
  display: grid;
  place-items: center;
  padding: 0;
  border-radius: 50%;
}

.link-button:has(.fa) .fa {
  font-size: 0.9em;
}

.link-button .fa-play {
  margin-left: 2px;
}

/* ask a librarian form */

#askLibWrapper {
  --bxShdColour: rgba(0, 0, 0, 0.25);
  --bxShdWdth: 1px;
}

@media screen and (min-width: 992px) {
  .reference-page-aside {
    height: 100%;
    position: relative;
  }
  #askLibWrapper {
    position: sticky;
    top: 3rem;
    box-shadow: calc(-1 * var(--bxShdWdth)) 0 0 var(--bxShdColour);
    padding-left: 1rem;
  }
}

@media screen and (max-width: 991px) {
  #askLibWrapper {
    padding-block: 1rem;
    box-shadow: 0 calc(-2 * var(--bxShdWdth)) 0 var(--bxShdColour);
  }
}

#askLibWrapper .heading {
  font-weight: 300;
}

#askLibWrapper form {
  font-size: 0.9rem;
}

#askLibWrapper label,
#askLibWrapper input:not([type='checkbox'], [type='radio']),
#askLibWrapper textarea {
  display: block;
  margin-block: 0.5rem;
}

#askLibWrapper input:not([type='checkbox'], [type='radio']),
#askLibWrapper textarea {
  width: 100%;
  padding: 0.25em 0.5em;
  font-size: 0.95em;
}

#askLibWrapper [type='submit'] {
  margin-block-start: 0.75rem;
  font-weight: 700;
  font-family: var(--secondaryFont);
  font-size: 0.8rem;
  padding: 0.25em 0.75em;
  padding-inline-start: 0.6em;
}

@media screen and (max-width: 991px) {
  #askLibWrapper [type='submit'] {
    width: 100%;
    font-size: 1rem;
    padding-block: 0.5em;
  }
}


/* reference page bubbles */

.reference-page-bubble {
  transition: 0.5s ease;
}

.reference-page-bubble .img-wrapper {
  display: block;
  --dim: 200px;
  width: var(--dim);
  height: var(--dim);
  border-radius: 50%;
  overflow: hidden;
  margin-bottom: 1rem;
  transition: .5s ease-in-out;
  translate: var(--transX, 0) var(--transY, 0);
}

.reference-page-bubble .img-wrapper img {
  height: 100%;
  scale: var(--scale, 1);
  transition: inherit;
}

.reference-page-bubble:not(:hover) {
  text-decoration: none;
}

.reference-page-bubble .heading,
.reference-page-bubble img {
  margin-inline: auto;
}

.reference-page-bubble .heading {
  font-size: 1.2rem;
  text-align: center;
  text-wrap: balance;
  width: var(--width, 10.5em);
}

.reference-page-bubble:hover .img-wrapper img {
  --scale: 1.05;
}

.reference-page-bubble:hover .img-wrapper {
  --transY: -.25rem;
}

a.reference-page-bubble {
  color: var(--white);
}

a.reference-page-bubble:hover {
  color: var(--orange2);
}

/* screen prefers light or dark */

@media (prefers-color-scheme: light) {
  body {
    color: var(--black);
    background-color: var(--white);
  }

  .btn-secondary {
    color: var(--black);
  }

  .btn-secondary:hover {
    border-color: var(--green);
    color: var(--green);
  }

  #featuredVideoWrapper .wrapper-int {
    background-color: white;
    padding: 1rem;
    box-shadow: 0 0 12px rgba(0, 0, 0, 0.05);
  }
}

@media (prefers-color-scheme: dark) {
  body {
    color: var(--white);
    background-color: var(--black);
  }

  #navbarExternalWrapper {
    --navBg: var(--black);
    box-shadow: 0 1px 0 0 rgba(255, 255, 255, 0.5);
    margin-block-end: 1rem;
  }

  #portalNavbar .dropdown-menu {
    border: 1px solid var(--white);
  }

  .btn-primary:hover {
    background-color: var(--black);
  }

  .btn-secondary {
    color: var(--green);
    border-color: var(--green);
  }

  .btn-secondary:hover {
    color: var(--white);
    border-color: var(--white);
  }

  .breadcrumb-link a,
  .breadcrumb-link a:hover {
    color: var(--orange2);
  }

  .breadcrumb-link a {
    text-decoration: none;
  }

  .reference-list-item {
    background-color: transparent;
    box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.25);
  }
}