/* Home page */
.section-home-heading {
  position: relative;
  height: 60vh;
  background-image: linear-gradient(
      to top right,
      var(--dark-blue-1),
      var(--dark-blue-1),
      var(--dark-blue-1),
      var(--dark-blue-2),
      var(--dark-blue-2),
      var(--dark-blue-3),
      var(--light-purple-1),
      var(--white-3),
      var(--white-2),
      var(--white-1),
      var(--white-1),
      var(--white-1)
    ),
    url(../img/stethoscope-1.jpg);
  background-size: cover;
  background-position: center;
  margin: 4rem auto;
  width: 80%;
  box-shadow: var(--shadow-1);
  border-top: none;
}

.home-heading {
  position: absolute;
  top: 30%;
  width: 100%;
  border-top: 7px solid var(--white-1);
  border-bottom: 7px solid var(--white-1);
  margin: 0 auto;
  background-color: var(--white-3);
  box-shadow: var(--shadow-1);
  text-align: center;
}

.home-heading h1 {
  padding: 1.5rem 0;
  letter-spacing: 0.7rem;
  font-weight: 700;
  font-size: 4vw;
  color: var(--dark-blue-1);
  height: auto;
}

.hidden-title {
  display: none;
}

/* About Section */
.section-home-about {
  margin: 0 auto 4rem;
  width: 80%;
}

.container-about {
  display: flex;
  box-shadow: var(--shadow-1);
}

.img-about {
  max-width: 50%;
  max-height: 50%;
}

.container-dark {
  display: flex;
  width: 20%;
  align-items: center;
  justify-content: center;
}

.container-medium {
  display: flex;
  width: 30%;
  align-items: center;
  justify-content: center;
}

.container-dark {
  background-image: var(--blue-gradient);
}

.container-light {
  width: 50%;
  padding: 1rem 0;
  background-color: var(--white-1);
}

.content-about {
  margin: 1rem;
  padding: 0 1rem;
  text-align: center;
  font-size: 1.2vw;
  font-weight: 500;
  color: var(--dark-gray-1);
}

.container-medium {
  background-color: var(--olive-2);
}

.container-medium .content-about {
  color: var(--white-1);
}

.divider-olive {
  border: 0;
  border-top: 1px solid var(--olive-3);
  height: 2px;
  margin: auto;
  width: 75%;
}

.email-link:link,
.email-link:visited {
  padding: 0.4rem;
  border-radius: 9px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1vw;
  font-family: monospace;
  background-color: var(--white-1);
  color: var(--olive-1);
}

.email-link:active,
.email-link:hover {
  background-color: var(--dark-blue-1);
  color: var(--white-1);
  transition: all 0.7s;
}

/* About Page */
#bio {
  border: 0;
  text-align: center;
}

#bio .page-content hr {
  margin-bottom: 4rem;
}

#bio .page-content .about h2 {
  margin-top: 0;
}

#bio .page-content .bio h3 {
  margin-top: 4rem;
}

#bio .page-content .bio h4 {
  font-style: italic;
}

#bio .page-content .bio hr {
  margin-top: 4rem;
  margin-bottom: 6rem;
}

/* Book Page */

.nav-books {
  width: 50%;
  display: flex;
  flex-direction: row;
  margin: 3rem auto;
  background-position: center;
  background-size: cover;
  justify-content: space-between;
  overflow: hidden;
}

.book-thumbnail {
  height: 3rem;
  width: 3rem;
  border-radius: 80%;
  overflow: hidden;
}

.book-img-thumbnail {
  width: 100%;
  height: auto;
  overflow: hidden;
  filter: grayscale(70%);
}

.book-img-thumbnail:hover {
  filter: grayscale(0%);
  transform: scale(1.5);
  transition: 0.4s ease-in;
}

@keyframes tonext {
  75% {
    left: 0;
  }
  95% {
    left: 100%;
  }
  98% {
    left: 100%;
  }
  99% {
    left: 0;
  }
}

@keyframes tostart {
  75% {
    left: 0;
  }
  95% {
    left: -300%;
  }
  98% {
    left: -300%;
  }
  99% {
    left: 0;
  }
}

@keyframes snap {
  96% {
    scroll-snap-align: center;
  }
  97% {
    scroll-snap-align: none;
  }
  99% {
    scroll-snap-align: none;
  }
  100% {
    scroll-snap-align: center;
  }
}

*::-webkit-scrollbar {
  width: 0;
}

*::-webkit-scrollbar-track {
  background: transparent;
}

*::-webkit-scrollbar-thumb {
  background: transparent;
  border: none;
}

* {
  -ms-overflow-style: none;
}

.carousel-books {
  margin: 0rem auto;
  width: 80%;
}

.carousel-books-list {
  display: flex;
  top: 30%;
  bottom: 0;
  left: 0;
  right: 0;
  list-style-type: none;
  overflow-x: scroll;
  scroll-behavior: smooth;
  scroll-snap-type: x mandatory;
  margin-top: 4.5rem;
}

.books-list-item {
  margin: 0 auto;
  padding: 0;
  flex: 0 0 100%;
  width: 100%;
}

.books-list-item:before {
  top: 50%;
  left: 50%;
  transform: translate3d(-50%, -40%, 70px);
}

.book-img {
  height: 80%;
  margin: 0 3rem 0 0;
  align-items: center;
  justify-content: center;
  float: left;
}

.book-img:hover {
  cursor: pointer;
}

.book-info .title,
.book-info .author,
.book-info .publisher,
.book-info .publish-date {
  font-weight: 700;
}

.book-info .title {
  color: var(--dark-blue-1);
  font-size: 2rem;
}

.book-info .author {
  font-size: 1.2rem;
}

.book-info .author:nth-of-type(1) {
  padding-top: 1rem;
}

.book-info .publisher {
  padding-top: 0.5rem;
}

.book-info .publisher,
.book-info .publish-date {
  font-family: monospace;
}

.nav-arrows {
  display: block;
  top: 0;
  left: 0;
  scroll-snap-align: center;
}

.nav-arrows-prev {
  float: left;
}

.nav-arrows-next {
  float: right;
  margin-right: 2rem;
}

.nav-arrows-prev:link,
.nav-arrows-prev:visited,
.nav-arrows-next:link,
.nav-arrows-next:visited {
  text-decoration: none;
  background-image: var(--blue-gradient);
  color: var(--white-1);
  border-radius: 9px;
  margin-top: 2rem;
  padding: 1rem;
  font-size: 0.7rem;
  font-weight: 700;
  width: 17%;
  text-align: center;
}

.nav-arrows-prev:active,
.nav-arrows-prev:hover,
.nav-arrows-next:active,
.nav-arrows-next:hover {
  background-image: none;
  background-color: var(--olive-1);
}

@media (hover: hover) {
  .nav-arrows {
    animation-name: tonext, snap;
    animation-timing-function: ease;
    animation-duration: 4s;
    animation-iteration-count: infinite;
  }
}

.books-list-item:last-child .nav-arrows {
  animation-name: tostart, snap;
}

/* Resources Section */

.container-collapsible {
  width: 80%;
  margin: 4rem auto;
  padding: 2rem;
  text-align: center;
  background-image: var(--blue-gradient);
  color: var(--white-1);
  box-shadow: var(--shadow-1);
}

input[type="checkbox"] {
  display: none;
}

.container-heading-resources {
  overflow: hidden;
  margin: 0 auto;
  font-family: monospace;
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.5rem;
  text-transform: uppercase;
  color: var(--white-1);
}

.collapsible-content-outer,
.collapsible-content-inner {
  max-height: 0px;
  overflow: hidden;
  transition: max-height 0.25s ease-in-out;
}

.main-toggle {
  font-weight: bold;
  font-size: 1.2rem;
  color: var(--white-1);
  cursor: pointer;
  transition: all 0.25s ease-out;
  /* padding: 1rem 5rem; */
}

.label-toggle {
  display: block;
  font-weight: bold;
  font-size: 0.8rem;
  text-transform: uppercase;
  text-align: right;
  padding: 0rem 1rem;
  color: var(--olive-1);
  background-color: var(--light-gray-1);
  cursor: pointer;
  transition: all 0.25s ease-out;
}

.main-toggle:hover,
.label-toggle:hover {
  color: var(--medium-blue-1);
}

.main-toggle::after {
  border-top: 0.7rem solid transparent;
  border-bottom: 0.7rem solid transparent;
  border-left: 0.7rem solid var(--bright-green-1);
  margin: 1rem;
  border-right: 1rem;
  padding-right: 0.5rem;
}

.toggle:checked + .main-toggle::after {
  border-left: 0.7rem solid var(--bright-aqua-1);
}

.label-toggle::after {
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
  border-left: 5px solid currentColor;
}

.main-toggle::after,
.label-toggle::after {
  content: " ";
  display: inline-block;
  vertical-align: middle;
  margin-right: 1rem;
  transform: translateY(-2px);
  transition: transform 0.2s ease-out;
}

.toggle:checked + .main-toggle::after,
.toggle:checked + .label-toggle::after {
  transform: rotate(90deg) translateX(-3px);
}

.more-info {
  letter-spacing: 0.5rem;
  font-size: 0.7rem;
}

.collapsible-content-outer,
.collapsible-content-inner {
  max-height: 0px;
  overflow: hidden;
  transition: max-height 0.25s ease-in-out;
}

.toggle:checked + .main-toggle + .collapsible-content-outer,
.toggle:checked + .label-toggle + .collapsible-content-outer,
.toggle:checked + .main-toggle + .collapsible-content-inner,
.toggle:checked + .label-toggle + .collapsible-content-inner {
  max-height: 100%;
}

.toggle:checked + .main-toggle,
.toggle:checked + .label-toggle {
  border-bottom-right-radius: 0;
  border-bottom-left-radius: 0;
}

.collapsible-content-outer .content-outer,
.collapsible-content-inner .content-inner {
  padding: 0.5rem 1rem;
}

.collapsible-content-outer .content-outer {
  background-color: var(--white-1);
}

.collapsible-content-inner .content-inner {
  background-color: var(--dark-white-1);
  border-bottom-left-radius: 7px;
  border-bottom-right-radius: 7px;
}

.collapsible-content-inner p {
  margin-bottom: 0;
  padding: 0 1rem 0.5rem;
}

.resource-link {
  text-decoration: none;
  color: var(--medium-blue-1);
  font-weight: 700;
  font-size: 1.3rem;
}

/* .collapsible {
  margin: 1rem;
} */

.topic,
.title,
.author,
.date,
.misc,
.role,
.trial-misc,
.research-misc,
.trial-desc,
.research-desc {
  text-align: left;
}

.role,
.topic {
  font-weight: 700;
  color: var(--olive-1);
}

.title {
  font-size: 1.3rem;
  color: var(--dark-blue-1);
}

.author,
.date,
.trial-desc,
.research-desc {
  color: var(--dark-gray-1);
}

.author {
  font-weight: 700;
}

.trial-misc,
.research-misc,
.misc {
  color: var(--dark-blue-1);
}

.container-list {
  margin: 2rem;
}

.container-list li {
  padding: 2rem 2rem;
}

/* Under construction page */
#under-construction .page-content {
  border: 0;
  text-align: center;
}

#under-construction .page-content .under-construction {
  margin: 4rem 4rem 16rem 4rem;
}