#about.timeline-article {
  background-color: rgba(16, 21, 27, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.11);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
  max-width: min(1180px, calc(100vw - 2.5rem));
  min-height: calc(100vh - 5rem);
  overflow: hidden;
  padding: clamp(1.35rem, 2.8vw, 2.35rem);
  width: min(1180px, calc(100vw - 2.5rem));
}

.timeline-shell-header {
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  margin-bottom: 1.15rem;
  padding-bottom: 0.95rem;
}

#about .major {
  flex: 0 0 auto;
  margin: 0;
}

.timeline-filter-shell {
  align-items: center;
  display: flex;
  flex: 1 1 auto;
  justify-content: flex-end;
  min-width: 0;
}

.timeline-filter-bar {
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex: 1 1 auto;
  flex-wrap: nowrap;
  gap: 0;
  justify-content: flex-end;
  margin: 0;
  max-width: 52rem;
  min-width: 0;
  overflow: hidden;
  padding: 0.12rem;
}

.timeline-filter {
  background: transparent;
  border: 0;
  box-shadow: none;
  color: rgba(255, 255, 255, 0.58) !important;
  font-size: clamp(0.52rem, 0.56vw, 0.62rem);
  font-weight: 700;
  flex: 1 1 0;
  height: auto;
  letter-spacing: 0.08rem;
  line-height: 1.05;
  min-height: 2.15rem;
  min-width: 0;
  overflow: hidden;
  padding: 0.62rem 0.45rem 0.56rem;
  position: relative;
  text-align: center;
  text-overflow: ellipsis;
  text-transform: uppercase;
  white-space: nowrap;
}

.timeline-filter::after {
  background: rgba(174, 218, 238, 0.95);
  bottom: -1px;
  content: "";
  height: 2px;
  left: 50%;
  position: absolute;
  transform: translateX(-50%) scaleX(0);
  transform-origin: center;
  transition: transform 0.18s ease;
  width: calc(100% - 1.1rem);
}

.timeline-filter-select-wrap {
  display: none;
}

.timeline-filter.is-active,
.timeline-filter:hover,
.timeline-filter:focus {
  background: rgba(174, 218, 238, 0.075);
  color: #ffffff !important;
}

.timeline-filter.is-active::after,
.timeline-filter:hover::after,
.timeline-filter:focus::after {
  transform: translateX(-50%) scaleX(1);
}

.timeline-root {
  display: grid;
  gap: 0;
  position: relative;
  width: 100%;
}

.timeline-root::before {
  background: linear-gradient(to bottom, rgba(174, 218, 238, 0), rgba(174, 218, 238, 0.52), rgba(174, 218, 238, 0));
  content: "";
  height: 100%;
  left: 8.4rem;
  position: absolute;
  top: 0;
  width: 1px;
}

.timeline-card {
  background: transparent;
  border-bottom: 1px solid rgba(255, 255, 255, 0.09);
  border-left: 0;
  border-right: 0;
  border-top: 0;
  display: grid;
  gap: 1.15rem;
  grid-template-columns: 7.2rem 1.2rem minmax(0, 1fr);
  max-width: none;
  min-height: 0;
  padding: 1.15rem 0;
  position: relative;
  width: 100%;
}

.timeline-card:last-child {
  border-bottom: 0;
}

.timeline-card-meta {
  display: grid;
  gap: 0.45rem;
  grid-column: 1;
  text-align: right;
}

.timeline-marker {
  align-self: start;
  background: #aedaee;
  border: 4px solid rgba(16, 21, 27, 0.96);
  box-shadow: 0 0 0 1px rgba(174, 218, 238, 0.62), 0 0 22px rgba(174, 218, 238, 0.16);
  grid-column: 2;
  height: 0.86rem;
  margin-top: 0.28rem;
  position: relative;
  width: 0.86rem;
  z-index: 1;
}

.timeline-card h3,
.timeline-card p,
.timeline-links,
.timeline-media-image,
.timeline-media-frame {
  grid-column: 3;
}

.timeline-date,
.timeline-category {
  color: rgba(174, 218, 238, 0.92);
  display: block;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.1rem;
  line-height: 1.35;
  text-transform: uppercase;
}

.timeline-category {
  color: rgba(255, 255, 255, 0.48);
}

.timeline-card h3 {
  font-size: clamp(0.98rem, 1.35vw, 1.18rem);
  letter-spacing: 0.01rem;
  line-height: 1.38;
  margin: 0;
  max-width: 48rem;
  text-transform: none;
}

.timeline-card p {
  color: rgba(255, 255, 255, 0.74);
  font-size: 0.92rem;
  line-height: 1.62;
  margin: -0.55rem 0 0;
  max-width: 52rem;
}

.timeline-card.is-highlight h3 {
  color: #ffffff;
}

.timeline-card.is-highlight .timeline-marker {
  background: #ffffff;
}

.timeline-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: -0.35rem;
}

.timeline-links a,
.timeline-media-fallback a {
  border: 1px solid rgba(174, 218, 238, 0.25);
  color: rgba(174, 218, 238, 0.96);
  font-size: 0.66rem;
  font-weight: 800;
  letter-spacing: 0.1rem;
  padding: 0.46rem 0.58rem;
  text-decoration: none;
  text-transform: uppercase;
}

.timeline-links a:hover,
.timeline-links a:focus,
.timeline-media-fallback a:hover,
.timeline-media-fallback a:focus {
  background: rgba(174, 218, 238, 0.12);
  border-color: rgba(174, 218, 238, 0.56);
}

.timeline-media-fallback {
  grid-column: 3;
  margin-top: -0.2rem;
}

.timeline-media-image,
.timeline-media-frame {
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: block;
  margin-top: -0.1rem;
  max-width: 42rem;
  width: 100%;
}

.timeline-media-image {
  max-height: 18rem;
  object-fit: cover;
}

.timeline-media-frame {
  aspect-ratio: 16 / 9;
  height: auto;
}

.timeline-empty {
  color: rgba(255, 255, 255, 0.76);
}

@media screen and (max-width: 980px) {
  #about.timeline-article {
    max-width: calc(100vw - 1.5rem);
    min-height: calc(100vh - 3rem);
    width: calc(100vw - 1.5rem);
  }
}

@media screen and (max-width: 736px) {
  #about.timeline-article {
    padding: 1.1rem;
  }

  .timeline-shell-header {
    gap: 0.85rem;
  }

  .timeline-filter-shell {
    flex: 1 1 auto;
  }

  .timeline-filter-bar {
    display: none;
  }

  .timeline-filter-select-wrap {
    align-items: center;
    display: flex;
    gap: 0.45rem;
    justify-content: flex-end;
    min-width: 0;
    width: 100%;
  }

  .timeline-filter-select {
    appearance: auto;
    background: rgba(255, 255, 255, 0.055);
    border: 1px solid rgba(255, 255, 255, 0.16);
    color: #ffffff;
    font-size: 0.72rem;
    font-weight: 700;
    height: 2.2rem;
    letter-spacing: 0.06rem;
    max-width: 11rem;
    min-width: 7.6rem;
    padding: 0 0.55rem;
    text-transform: uppercase;
  }

  .timeline-root::before {
    left: 0.45rem;
  }

  .timeline-card {
    gap: 0.6rem 0.9rem;
    grid-template-columns: 1rem minmax(0, 1fr);
    padding: 1rem 0;
  }

  .timeline-card-meta,
  .timeline-card h3,
  .timeline-card p,
  .timeline-links,
  .timeline-media-fallback,
  .timeline-media-image,
  .timeline-media-frame {
    grid-column: 2;
    text-align: left;
  }

  .timeline-marker {
    grid-column: 1;
    height: 0.74rem;
    margin-top: 0.16rem;
    width: 0.74rem;
  }

  .timeline-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
  }

  .timeline-card p {
    margin-top: -0.25rem;
  }
}

@media screen and (max-width: 420px) {
  .timeline-shell-header {
    gap: 0.6rem;
  }

  .timeline-filter-select {
    max-width: 9.5rem;
    min-width: 7rem;
  }
}