.about-hub {
  max-width: 760px;
  margin: 0 auto;
  padding: 1.25rem 0 0.5rem;
}

.about-hub-header {
  margin-bottom: 2.25rem;
}

.about-hub-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgb(8 145 178);
  margin-bottom: 0.75rem;
  opacity: 0;
  animation: aboutFadeUp 0.45s ease 0.05s forwards;
}

.about-hub-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: rgb(17 24 39);
  margin: 0 0 1rem;
  opacity: 0;
  animation: aboutFadeUp 0.45s ease 0.12s forwards;
}

.dark .about-hub-title {
  color: rgb(243 244 246);
}

.about-hub-intro,
.about-hub-intro-fallback {
  font-size: 1rem;
  line-height: 1.75;
  color: rgb(75 85 99);
  max-width: 62ch;
  opacity: 0;
  animation: aboutFadeUp 0.45s ease 0.2s forwards;
}

.about-hub-intro p {
  margin: 0;
}

.dark .about-hub-intro,
.dark .about-hub-intro-fallback {
  color: rgb(156 163 175);
}

.about-hub-links {
  border-top: 1px solid rgb(229 231 235);
}

.dark .about-hub-links {
  border-top-color: rgb(55 65 81);
}

.about-hub-link {
  display: grid;
  grid-template-columns: 2.25rem 1fr auto;
  align-items: baseline;
  gap: 1.25rem;
  padding: 1.2rem 0;
  border-bottom: 1px solid rgb(229 231 235);
  text-decoration: none;
  color: inherit;
  position: relative;
  opacity: 0;
  animation: aboutFadeUp 0.42s ease forwards;
  animation-delay: calc(0.28s + (var(--item-index) * 0.06s));
  transition: padding 0.25s ease, margin 0.25s ease, background-color 0.25s ease;
}

.dark .about-hub-link {
  border-bottom-color: rgb(55 65 81);
}

.about-hub-link:hover {
  padding-left: 0.7rem;
  padding-right: 0.7rem;
  margin-left: -0.7rem;
  margin-right: -0.7rem;
  background: rgb(249 250 251);
  border-radius: 0.35rem;
}

.dark .about-hub-link:hover {
  background: rgb(31 41 55);
}

.about-hub-link-number {
  font-style: italic;
  font-size: 1.1rem;
  line-height: 1;
  color: rgb(209 213 219);
  transition: color 0.25s ease;
}

.about-hub-link:hover .about-hub-link-number {
  color: rgb(22 163 74);
}

.dark .about-hub-link-number {
  color: rgb(75 85 99);
}

.about-hub-link-title {
  display: block;
  font-size: 1.2rem;
  font-weight: 600;
  line-height: 1.35;
  color: rgb(17 24 39);
  margin-bottom: 0.2rem;
}

.dark .about-hub-link-title {
  color: rgb(243 244 246);
}

.about-hub-link-description {
  display: block;
  font-size: 0.9rem;
  line-height: 1.6;
  color: rgb(107 114 128);
}

.dark .about-hub-link-description {
  color: rgb(156 163 175);
}

.about-hub-link-arrow {
  opacity: 0;
  transform: translateX(-6px);
  transition: all 0.25s ease;
  color: rgb(22 163 74);
  padding-top: 0.2rem;
}

.about-hub-link-arrow svg {
  width: 16px;
  height: 16px;
  display: block;
}

.about-hub-link:hover .about-hub-link-arrow {
  opacity: 1;
  transform: translateX(0);
}

@keyframes aboutFadeUp {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 640px) {
  .about-hub {
    padding-top: 0.5rem;
  }

  .about-hub-link {
    grid-template-columns: 1.85rem 1fr 1.2rem;
    gap: 0.85rem;
  }

  .about-hub-link-number {
    font-size: 1rem;
  }

  .about-hub-link-title {
    font-size: 1.05rem;
  }

  .about-hub-link-description {
    font-size: 0.84rem;
  }

  .about-hub-link-arrow {
    opacity: 0.45;
    transform: translateX(0);
  }
}