/* Homepage-only layout. Shared project pages and Unsorted keep their styles. */
.portfolio-home {
  --index-font:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
}
.portfolio-layout {
  width: min(1440px, 100%);
  margin: 0 auto;
  padding: 0 clamp(28px, 5vw, 80px);
  display: grid;
  grid-template-columns: minmax(280px, 360px) minmax(0, 660px);
  column-gap: clamp(60px, 8vw, 140px);
  justify-content: space-between;
}
.identity-sidebar {
  position: sticky;
  top: 0;
  height: 100dvh;
  min-height: 0;
  padding: clamp(32px, 6vh, 72px) 0 30px;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  scrollbar-width: thin;
}
.editorial-label {
  display: inline-block;
  color: var(--muted);
  font: 10px/1.4 var(--index-font);
  letter-spacing: 0.18em;
  margin-bottom: 32px;
}
.identity-sidebar h1 {
  font-size: clamp(36px, 3.3vw, 48px);
  letter-spacing: -0.055em;
  line-height: 1.08;
  font-weight: 400;
  margin: 0 0 20px;
}
.identity-discipline {
  font-size: 18px;
  line-height: 1.5;
  color: var(--fg);
  margin-bottom: 18px;
  max-width: 29ch;
}
.identity-intro {
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 34ch;
  margin: 0;
}
.index-nav {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 2px;
  margin: clamp(26px, 5vh, 56px) 0;
}
.index-nav a {
  display: grid;
  grid-template-columns: 38px 1fr;
  position: relative;
  gap: 10px;
  align-items: baseline;
  padding: 10px 0;
  min-height: 44px;
  font: 13px/1.6 var(--index-font);
  color: var(--muted);
  transition: color 0.18s ease;
}
.nav-number {
  color: var(--muted);
  font-size: 10px;
  letter-spacing: 0.08em;
  transition: color 0.18s ease;
}
.index-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 4px;
  width: 12px;
  height: 1px;
  background: var(--link);
  opacity: 0;
  transition:
    opacity 0.18s ease,
    width 0.18s ease;
}
.index-nav a:hover,
.index-nav a[aria-current="location"] {
  color: var(--fg);
  text-decoration: none;
}
.index-nav a[aria-current="location"] .nav-number {
  color: var(--link);
}
.index-nav a[aria-current="location"]::after {
  opacity: 1;
  width: 24px;
}
.identity-bottom {
  margin-top: auto;
  border-top: 1px solid var(--line);
  padding-top: 20px;
}
.location {
  font: 11px/1.5 var(--index-font);
  color: var(--muted);
  margin: 0 0 12px;
  letter-spacing: 0.02em;
}
.identity-social {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
}
.identity-social a {
  font: 12px/1.7 var(--index-font);
  color: var(--fg);
  padding: 3px 0;
}
.portfolio-content {
  min-width: 0;
}
.portfolio-home main.wrap {
  max-width: none;
  margin: 0;
  padding: clamp(48px, 7vh, 88px) 0 64px;
}
.portfolio-home main section {
  scroll-margin-top: 40px;
  margin-bottom: 80px;
}
.portfolio-home main section:last-child {
  margin-bottom: 0;
}
.section-index {
  color: var(--muted);
  font: 10px/1.4 var(--index-font);
  letter-spacing: 0.14em;
  margin: 0 0 10px;
}
.portfolio-home main h2 {
  font-size: 27px;
  font-weight: 400;
  margin: 0 0 18px;
  letter-spacing: -0.025em;
  line-height: 1.3;
}
.portfolio-home .section-intro {
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 26px;
  max-width: 48ch;
}
.portfolio-home .item {
  padding: 22px 0;
  gap: 12px;
}
.portfolio-home .item h3 {
  font-size: 18px;
}
.portfolio-home .item h3 a {
  font-weight: 400;
}
.portfolio-home .item p {
  max-width: 50ch;
  font-size: 14px;
}
.portfolio-home .tag {
  font: 10px/1.6 var(--index-font);
  padding-top: 5px;
}
.portfolio-home .essay {
  font-size: 16px;
}
.portfolio-home .about {
  font-size: 15px;
  line-height: 1.9;
}
.observation-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}
.observation-list li {
  border-bottom: 1px solid var(--line);
}
.observation-list a {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 6px 20px;
  padding: 18px 0;
  color: var(--fg);
  font-size: 16px;
  line-height: 1.6;
}
.note-kind {
  grid-column: 1 / -1;
  font: 10px/1.6 var(--index-font);
  color: var(--muted);
  letter-spacing: 0.04em;
}
.note-arrow {
  color: var(--muted);
}
.cv-link {
  display: inline-block;
  margin-top: 8px;
  font-size: 14px;
}
.portfolio-home .footer.wrap {
  max-width: none;
  margin: 0;
  padding: 24px 0 32px;
  font: 11px/1.8 var(--index-font);
}
@media (min-width: 961px) and (max-height: 720px) {
  .identity-sidebar {
    padding-top: 24px;
    padding-bottom: 20px;
  }
  .editorial-label {
    margin-bottom: 20px;
  }
  .identity-sidebar h1 {
    font-size: 38px;
    margin-bottom: 14px;
  }
  .identity-discipline {
    font-size: 17px;
    margin-bottom: 12px;
  }
  .identity-intro {
    font-size: 14px;
    line-height: 1.7;
  }
  .index-nav {
    margin: 20px 0;
  }
  .index-nav a {
    padding: 7px 0;
    min-height: 38px;
  }
}
@media (max-width: 1100px) and (min-width: 961px) {
  .portfolio-home .item {
    grid-template-columns: 1fr;
  }
  .portfolio-home .tag {
    padding-top: 0;
  }
}
@media (max-width: 960px) {
  .portfolio-layout {
    display: block;
    max-width: 760px;
    padding: 0 28px;
  }
  .identity-sidebar {
    position: static;
    height: auto;
    overflow: visible;
    padding: 42px 0 30px;
    border-bottom: 1px solid var(--line);
  }
  .identity-sidebar h1 {
    font-size: 46px;
  }
  .identity-intro {
    max-width: 52ch;
  }
  .identity-discipline {
    max-width: none;
  }
  .editorial-label {
    margin-bottom: 24px;
  }
  .index-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2px 24px;
    margin: 28px 0 24px;
  }
  .identity-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px 24px;
    padding-top: 18px;
  }
  .location {
    margin: 0;
  }
  .portfolio-home main.wrap {
    padding-top: 40px;
  }
  .portfolio-home main section {
    scroll-margin-top: 24px;
    margin-bottom: 60px;
  }
}
@media (max-width: 480px) {
  .portfolio-layout {
    padding: 0 22px;
  }
  .identity-sidebar h1 {
    font-size: 40px;
  }
  .identity-discipline {
    font-size: 17px;
    max-width: 27ch;
  }
  .identity-intro {
    font-size: 14px;
  }
  .index-nav {
    column-gap: 16px;
  }
  .index-nav a {
    grid-template-columns: 24px 1fr;
    gap: 6px;
    font-size: 11px;
  }
  .nav-number {
    font-size: 9px;
  }
  .portfolio-home .item {
    grid-template-columns: 1fr;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .portfolio-home *,
  .portfolio-home *::after {
    transition: none !important;
  }
}
@media (max-width: 960px) {
  .identity-social a {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
  }
}

.portfolio-home .about-tabs {
  display: flex;
  gap: 24px;
  border-bottom: 1px solid var(--line);
  margin: 24px 0;
}
.portfolio-home .about-tabs button {
  appearance: none;
  background: transparent;
  color: inherit;
  font: inherit;
  font-size: 14px;
  cursor: pointer;
  padding: 12px 0;
  border: 0;
  border-bottom: 2px solid transparent;
  opacity: .65;
}
.portfolio-home .about-tabs button[aria-selected="true"] {
  border-bottom-color: currentColor;
  opacity: 1;
}
.portfolio-home .about-tabs button:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 4px;
}
.portfolio-home .about[hidden] { display: none; }