@keyframes fade-up-in {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.about {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: calc(100% - 32px);
  max-width: 80rem;
  margin-inline: auto;
  padding-top: 144px;
  padding-bottom: 5rem;
}

@media (min-width: 40rem) {
  .about {
    width: calc(100% - 240px);
  }
}

.about-inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  width: 100%;
}

.about-heading,
.about-subtitle,
.about-bio,
.about-socials,
.about-affiliations {
  animation: fade-up-in 0.6s cubic-bezier(0.23, 1, 0.32, 1) both;
}

.about-heading {
  animation-delay: 0.1s;
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1.05;
  font-weight: 600;
  letter-spacing: -0.05em;
  text-align: left;
  color: var(--foreground);
}

.about-subtitle {
  animation-delay: 0.18s;
  margin-top: 0.375rem;
  font-family: var(--font-geist-mono);
  font-size: 1.25rem;
  line-height: 1.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-align: left;
  color: var(--accent);
}

.about-bio {
  animation-delay: 0.28s;
  max-width: 48rem;
  margin-top: 1.75rem;
  font-size: 1rem;
  line-height: 1.85;
  text-align: left;
  color: var(--muted-fg);
}

.about-bio-link {
  color: var(--accent);
  transition: opacity 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

.about-bio-link:hover {
  opacity: 0.8;
}

.about-socials {
  animation-delay: 0.38s;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  column-gap: 1rem;
  row-gap: 0.5rem;
  margin-top: 1.25rem;
}

.about-social-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  margin-block: -0.125rem;
  padding-block: 0.125rem;
  font-family: var(--font-geist-mono);
  font-size: 0.875rem;
  line-height: 1.25rem;
  font-weight: 500;
  color: var(--accent);
  transition: opacity 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

.about-social-link:hover {
  opacity: 0.8;
}

.about-social-link:focus-visible {
  outline-offset: 1px;
}

.about-social-divider {
  display: none;
  user-select: none;
  color: var(--accent);
}

.about-affiliations {
  animation-delay: 0.48s;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  column-gap: 0.75rem;
  row-gap: 0.75rem;
  margin-top: 2.5rem;
}

.about-aff-item {
  display: contents;
}

.about-aff-slash {
  display: none;
  user-select: none;
  font-family: var(--font-geist-mono);
  font-size: 0.875rem;
  line-height: 1.25rem;
  color: var(--accent);
}

.about-aff-wrap {
  position: relative;
  display: inline-flex;
}

.about-aff-trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding-block: 0.25rem;
  padding-right: 0.25rem;
  border-radius: 0.5rem;
  font-family: var(--font-geist-mono);
  font-size: 0.875rem;
  line-height: 1.25rem;
  cursor: pointer;
  transition: opacity 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

.about-aff-trigger:focus-visible {
  border-radius: 4px; /* keeps the global focus ring rounding, which a plain .about-aff-trigger rule would override */
}

.about-aff-trigger-current {
  opacity: 1;
}

.about-aff-trigger-past {
  opacity: 0.45;
}

.about-aff-trigger-past:hover {
  opacity: 1;
}

.about-aff-badge,
.about-popover-badge {
  display: flex;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  font-family: var(--font-geist-mono);
  font-weight: 700;
}

.about-aff-badge {
  width: 1.75rem;
  height: 1.75rem;
  font-size: 0.75rem;
  line-height: 1rem;
}

.about-aff-logo {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.about-aff-name {
  font-weight: 500;
  color: var(--foreground);
}

.about-aff-status {
  font-size: 0.75rem;
  line-height: 1rem;
  color: var(--meta-fg);
}

.about-popover-anchor {
  position: absolute;
  bottom: 100%;
  left: 50%;
  z-index: 30;
  margin-bottom: 1rem;
  translate: calc(-50% + var(--about-popover-shift, 0px)) 0;
}

.about-popover {
  position: relative;
  width: 18rem;
  max-width: calc(100vw - 3rem);
  padding: 1.25rem;
  border: 1px solid var(--border);
  border-radius: 1rem;
  background-color: var(--surface);
  box-shadow: var(--card-shadow);
  text-align: left;
  animation: popover-in 150ms ease-out both;
}

.about-popover-arrow,
.about-popover-arrow-inner {
  position: absolute;
  top: 100%;
  left: calc(50% - var(--about-popover-shift, 0px));
  translate: -50% 0;
  border-style: solid;
  border-color: transparent;
}

.about-popover-arrow {
  border-width: 8px;
  border-top-color: var(--border);
}

.about-popover-arrow-inner {
  margin-top: -9px;
  border-width: 7px;
  border-top-color: var(--surface);
}

.about-popover-close {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  padding: 0.25rem;
  color: var(--muted-fg);
  cursor: pointer;
  transition-property: color, background-color, border-color, outline-color, text-decoration-color, fill, stroke;
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
  transition-duration: 0.15s;
}

.about-popover-close:hover {
  color: var(--foreground);
}

.about-popover-close:focus-visible {
  outline-offset: -1px;
}

.about-popover-head {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding-right: 1.5rem;
}

.about-popover-badge {
  width: 2.75rem;
  height: 2.75rem;
  font-size: 1rem;
  line-height: 1.5;
}

.about-popover-title {
  font-family: var(--font-geist-mono);
  font-size: 0.875rem;
  line-height: 1.25rem;
  font-weight: 600;
  color: var(--foreground);
}

.about-popover-role {
  font-family: var(--font-geist-mono);
  font-size: 0.75rem;
  line-height: 1rem;
  color: var(--muted-fg);
}

.about-popover-body {
  margin-top: 1rem;
  font-family: var(--font-geist-mono);
  font-size: 0.75rem;
  line-height: 1.625;
  color: var(--muted-fg);
}

.about-popover-meta {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  margin-top: 0.75rem;
  font-family: var(--font-geist-mono);
  font-size: 0.75rem;
  line-height: 1rem;
  color: var(--meta-fg);
}

.about-popover-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  margin-top: 0.75rem;
  margin-bottom: -0.25rem;
  padding-block: 0.25rem;
  font-family: var(--font-geist-mono);
  font-size: 0.75rem;
  line-height: 1rem;
  font-weight: 500;
  color: var(--accent);
  transition: opacity 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

.about-popover-link:hover {
  opacity: 0.8;
}

.about-popover-link:focus-visible {
  outline-offset: 1px;
}

@media (min-width: 48rem) {
  .about-social-divider {
    display: inline;
  }
}

@media (min-width: 64rem) {
  .about-aff-slash {
    display: inline;
  }
}