openfreebooks-bookgenerator/themes/openfreebooks/sass/_why-sections.scss

.why-section {
  padding: 64px 0;
  border-top: 1px solid var(--line);
}

.why-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(32px, 5vw, 56px);
  align-items: center;
}

.why-row--art-end .why-art {
  order: 2;
}

.why-row--art-end .why-copy {
  order: 1;
}

.why-art {
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  translate: 0 20px;
  transition: opacity 500ms ease, translate 500ms ease;
}

.why-art.is-inview {
  opacity: 1;
  translate: 0 0;
}

.why-art svg {
  width: min(100%, 280px);
  height: auto;
  display: block;
  overflow: visible;
}

.why-art.is-inview .why-illustration__float {
  animation: why-illustration-float 4.5s ease-in-out infinite;
  transform-origin: center;
  transform-box: fill-box;
}

.why-art.is-inview .why-illustration__pulse {
  animation: why-illustration-pulse 2.8s ease-in-out infinite;
}

@keyframes why-illustration-float {
  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-5px);
  }
}

@keyframes why-illustration-pulse {
  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.45;
  }
}

.why-copy {
  max-width: var(--prose-width);
  opacity: 0;
  translate: 0 20px;
  transition: opacity 500ms ease, translate 500ms ease;
}

.why-copy.is-inview {
  opacity: 1;
  translate: 0 0;
}

.why-copy .section-title {
  margin-bottom: 16px;
}

.why-copy p {
  margin: 0 0 1rem;
  color: var(--soft-ink);
  font-size: 1.05rem;
  line-height: 1.72;
}

.why-copy p:last-child {
  margin-bottom: 0;
}

.why-copy strong {
  color: var(--ink);
  font-weight: 600;
}

.why-section--community .why-craft-logos-wrap {
  overflow: hidden;
  opacity: 0;
  translate: 0 20px;
  transition: opacity 500ms ease, translate 500ms ease;
}

.why-section--community .why-craft-logos-wrap.is-inview {
  opacity: 1;
  translate: 0 0;
}

.university-logos-label {
  margin: 0 0 24px;
  text-align: center;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.university-carousel {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100vw;
  margin-left: calc(-50vw + 50%);
  overflow: hidden;
}

.university-carousel-row {
  overflow: hidden;
  mask-image: linear-gradient(
    90deg,
    transparent 0%,
    #000 6%,
    #000 94%,
    transparent 100%
  );
}

.university-carousel-track {
  display: flex;
  width: max-content;
  animation: university-carousel-forward 52s linear infinite;
}

.university-carousel-row--reverse .university-carousel-track {
  animation-name: university-carousel-reverse;
  animation-duration: 58s;
}

.university-carousel-row--slow .university-carousel-track {
  animation-duration: 64s;
}

.university-carousel-group {
  display: flex;
  flex-shrink: 0;
  align-items: center;
  gap: 12px;
  margin: 0;
  padding: 0 6px;
  list-style: none;
}

@keyframes university-carousel-forward {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

@keyframes university-carousel-reverse {
  from {
    transform: translateX(-50%);
  }
  to {
    transform: translateX(0);
  }
}

.university-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 56px;
  padding: 10px 12px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
}

.university-logo svg {
  width: 108px;
  height: auto;
  display: block;
  color: var(--ink);
}

$university-colors: (
  mit: (#a31f34, #e85a6f),
  harvard: (#a51c30, #e88a96),
  stanford: (#8c1515, #e88a8a),
  berkeley: (#003262, #6a9fd4),
  caltech: (#ff6c0c, #f5a623),
  princeton: (#e77500, #f0a040),
  yale: (#00356b, #6a9fd4),
  columbia: (#003865, #7eb3e8),
  cornell: (#b31b1b, #e85a6f),
  cmu: (#c41230, #e87888),
  oxford: (#002147, #7eb3e8),
  cambridge: (#0072cf, #6ab0f0),
  imperial: (#003e74, #6a9fd4),
  lse: (#e41f13, #f07870),
  eth: (#1f407a, #6a9fd4),
  toronto: (#002a5c, #6a9fd4),
  mcgill: (#ed1b2f, #f07888),
  hku: (#006747, #3cb88a),
  hkust: (#003366, #6a9fd4),
  cuhk: (#7b2d8e, #c49ae0),
  nus: (#ef7c00, #f5a623),
  tsinghua: (#82318e, #c49ae0),
  pku: (#94070a, #e87878),
  utokyo: (#003f87, #6a9fd4),
  anu: (#c4a337, #e8c860),
  melbourne: (#094183, #6a9fd4),
  iitb: (#003366, #6a9fd4)
);

@each $slug, $pair in $university-colors {
  .university-logo--#{$slug} {
    color: nth($pair, 1);
  }

  [data-theme="dark"] .university-logo--#{$slug} {
    color: nth($pair, 2);
  }
}

@media (prefers-color-scheme: dark) {
  @each $slug, $pair in $university-colors {
    :root:not([data-theme="light"]) .university-logo--#{$slug} {
      color: nth($pair, 2);
    }
  }
}

@media (max-width: 900px) {
  .why-row,
  .why-row--art-end {
    grid-template-columns: 1fr;
  }

  .why-row--art-end .why-art,
  .why-row--art-end .why-copy {
    order: unset;
  }

  .why-art svg {
    width: min(100%, 220px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .why-art,
  .why-copy,
  .why-section--community .why-craft-logos-wrap {
    opacity: 1;
    translate: 0 0;
    transition: none;
  }

  .why-illustration__float,
  .why-illustration__pulse {
    animation: none !important;
  }

  .university-carousel-track {
    animation: none;
    flex-wrap: wrap;
    width: 100%;
    justify-content: center;
  }

  .university-carousel-row {
    mask-image: none;
  }

  .university-carousel-group[aria-hidden="true"] {
    display: none;
  }

  .university-carousel {
    width: 100%;
    margin-left: 0;
  }
}