/* Site footer */

.site-footer {
  position: relative;
  margin-top: 24px;
  padding: 52px 0 28px;
  color: var(--ink-soft);
  background:
    linear-gradient(180deg, transparent 0%, rgba(91, 79, 233, .035) 100%),
    var(--paper-2);
  border-top: 1px solid var(--line);
  overflow: hidden;
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  background: linear-gradient(90deg, var(--indigo) 0%, var(--green) 55%, transparent 100%);
  opacity: .85;
}

.site-footer__inner {
  position: relative;
  z-index: 1;
}

.site-footer__brand {
  max-width: 420px;
  margin-bottom: 36px;
}

.site-footer__logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -.02em;
}

.site-footer__logo:hover {
  color: var(--ink);
  text-decoration: none;
}

.site-footer__logo svg {
  flex: none;
}

.site-footer__logo-text .pdf {
  color: var(--indigo);
}

.site-footer__promise {
  margin: 14px 0 0;
  font-size: .98rem;
  line-height: 1.55;
  color: var(--ink-soft);
}

.site-footer__privacy {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-top: 16px;
  padding: 8px 14px;
  border: 1px solid var(--green);
  border-radius: 999px;
  background: var(--green-tint);
  font-family: var(--font-mono);
  font-size: .78rem;
  font-weight: 500;
  color: var(--green);
}

.site-footer__pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  position: relative;
  flex: none;
}

.site-footer__pulse::after {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid var(--green);
  opacity: .45;
  animation: bison-footer-pulse 2s ease-out infinite;
}

@keyframes bison-footer-pulse {
  0% {
    transform: scale(.55);
    opacity: .55;
  }
  100% {
    transform: scale(1.55);
    opacity: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-footer__pulse::after {
    animation: none;
  }
}

.site-footer__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 28px 32px;
  margin-bottom: 34px;
}

.site-footer__heading {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: .92rem;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--ink);
}

.site-footer__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-footer__list li + li {
  margin-top: 2px;
}

.site-footer__list a {
  display: inline-block;
  position: relative;
  padding: 4px 0;
  color: var(--ink-soft);
  text-decoration: none;
  font-size: .9rem;
  transition: color .15s ease, transform .15s ease;
}

.site-footer__list a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 2px;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .18s ease;
  opacity: .45;
}

.site-footer__list a:hover {
  color: var(--indigo);
  text-decoration: none;
  transform: translateX(2px);
}

.site-footer__list a:hover::after {
  transform: scaleX(1);
}

.site-footer__base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 20px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.site-footer__copy {
  font-size: .84rem;
  color: var(--ink-soft);
}

.site-footer__top {
  font-family: var(--font-mono);
  font-size: .78rem;
  font-weight: 500;
  color: var(--indigo);
  text-decoration: none;
  letter-spacing: .02em;
}

.site-footer__top:hover {
  color: var(--indigo-deep);
  text-decoration: underline;
}

@media (max-width: 960px) {
  .site-footer__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .site-footer {
    padding: 40px 0 24px;
  }

  .site-footer__brand {
    margin-bottom: 28px;
  }

  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .site-footer__base {
    flex-direction: column;
    align-items: flex-start;
  }
}