/* About: four scenes, one story. Shared navigation remains in styles.css. */
.about-page { --about-ease: cubic-bezier(.19, 1, .22, 1); }
.about-page .section-kicker { font-size: .75rem; }
.about-page main { overflow: clip; }
.about-page a:focus-visible { outline: 2px solid #0a9477; outline-offset: 6px; }
.about-page .dark-section a:focus-visible { outline-color: var(--teal); }
.about-page [id] { scroll-margin-top: calc(var(--header-h) + 2rem); }
.about-opening { min-height: 100svh; padding-top: calc(var(--header-h) + 3rem); padding-bottom: 2.5rem; display: flex; flex-direction: column; }
.about-opening-meta { display: flex; justify-content: space-between; align-items: center; gap: 2rem; }
.about-opening-meta > span { color: #969d98; font-size: .75rem; letter-spacing: .1em; text-align: right; }
.about-opening-grid { display: grid; grid-template-columns: 1.6fr 1fr; align-items: end; gap: clamp(3rem, 6vw, 7rem); padding: clamp(4rem, 9vh, 7rem) 0; margin: auto 0; }
.about-opening h1 { margin: 0; font-size: clamp(5rem, 11.5vw, 13rem); line-height: .86; letter-spacing: -.075em; font-weight: 710; }
.about-rare { display: inline-block; color: #9a9f9b; transform-origin: left bottom; }
.about-period { color: var(--teal); }
.about-opening-copy { max-width: 31rem; padding: 1.5rem 0 0 2rem; border-left: 1px solid var(--line-dark); }
.about-opening-copy > p { font-size: 1.05rem; color: #a4aaa5; line-height: 1.65; margin: 1.75rem 0 0; }
.about-opening-copy .about-personal-line { margin: 0; color: var(--white); font-size: clamp(1.2rem, 1.65vw, 1.8rem); line-height: 1.4; letter-spacing: -.025em; }
.about-personal-line strong { color: var(--teal); font-weight: 550; }
.about-opening-foot { display: flex; justify-content: space-between; align-items: end; gap: 2rem; border-top: 1px solid var(--line-dark); padding-top: 1.5rem; }
.about-opening-foot p { margin: 0; font-size: 1rem; line-height: 1.5; }
.about-opening-foot p span { color: #a4aaa5; }
.about-opening-foot a { display: flex; align-items: center; gap: 2rem; font-size: .875rem; }
.about-opening-foot a span { color: var(--teal); transition: transform .35s var(--about-ease); }
.about-opening-foot a:hover span { transform: translateY(.3rem); }

.about-story { padding-top: 5rem; padding-bottom: 5rem; }
.about-story-stage { display: grid; grid-template-columns: minmax(0, .72fr) minmax(0, 1.28fr); gap: clamp(3rem, 8vw, 9rem); }
.about-story-index { align-self: start; position: sticky; top: calc(var(--header-h) + 2rem); }
.about-story-index h2 { font-size: clamp(2.6rem, 4.6vw, 5.6rem); line-height: .96; letter-spacing: -.055em; font-weight: 650; margin: 3rem 0; }
.about-story-index h2 span { color: #767e77; }
.about-chapter-nav { max-width: 24rem; border-top: 1px solid var(--line-light); }
.about-chapter-nav a { display: flex; gap: 1rem; align-items: center; min-height: 3.5rem; border-bottom: 1px solid var(--line-light); font-size: 1rem; color: #656c66; transition: color .25s ease; }
.about-chapter-nav a > span { font-size: .75rem; letter-spacing: .06em; }
.about-chapter-nav i { font-style: normal; margin-left: auto; }
.about-chapter-nav a:hover, .about-chapter-nav a[aria-current] { color: #087b64; }
.about-chapter-nav a[aria-current] { font-weight: 700; }
.about-chapter-count { display: none; }
.about-chapters { display: grid; gap: 5rem; min-width: 0; }
.about-chapter { padding: 1.6rem 0 0; border-top: 1px solid var(--line-light); min-width: 0; }
.about-chapter-label { margin: 0; font-size: .75rem; color: #087b64; letter-spacing: .12em; font-weight: 650; }
.about-chapter h3 { font-size: clamp(2.9rem, 4.9vw, 6rem); line-height: .94; letter-spacing: -.055em; margin: 2rem 0; font-weight: 680; }
.about-chapter h3 em { color: #727b73; font-style: normal; }
.about-chapter-copy { max-width: 42rem; }
.about-chapter-copy p { margin: 0 0 1rem; font-size: 1.0625rem; line-height: 1.6; color: #5d655f; }
.about-takeaway { border-top: 1px solid var(--line-light); padding-top: 1.25rem; margin: 1.8rem 0 0; font-size: 1.125rem; line-height: 1.5; max-width: 42rem; color: #1c2821; }
.about-path-quote { margin: 1.75rem 0; padding: 0 0 0 1.25rem; border-left: 2px solid #087b64; }
.about-path-quote p { margin: 0; font-size: clamp(1.5rem, 2.3vw, 2.6rem); line-height: 1.15; letter-spacing: -.035em; }
.about-path-quote cite { display: block; margin-top: .875rem; font-size: .75rem; color: #5d655f; line-height: 1.5; letter-spacing: .08em; font-style: normal; }

/* Immersive reading is enabled only when every chapter fits on screen. */
.about-story.is-immersive { height: 320svh; padding-top: 0; padding-bottom: 0; }
.is-immersive .about-story-stage { position: sticky; top: 0; min-height: 100svh; padding-top: calc(var(--header-h) + 2rem); padding-bottom: 2.5rem; align-items: center; }
.is-immersive .about-story-index { position: static; align-self: stretch; display: flex; flex-direction: column; }
.is-immersive .about-chapter-count { display: block; margin: auto 0 0; padding-top: 2rem; font-size: 1rem; color: #747e75; font-variant-numeric: tabular-nums; }
.is-immersive .about-chapter-count span { color: var(--black); font-size: 3rem; letter-spacing: -.06em; margin-right: .5rem; }
.is-immersive .about-chapters { gap: 0; }
.is-immersive .about-chapter { grid-area: 1 / 1; align-self: center; opacity: 0; visibility: hidden; transform: translateY(1.5rem); transition: opacity .4s ease, transform .65s var(--about-ease), visibility .4s; }
.is-immersive .about-chapter.is-current { opacity: 1; visibility: visible; transform: none; }

.about-perspective { padding-top: clamp(5rem, 9vw, 9rem); padding-bottom: clamp(5rem, 8vw, 8rem); }
.about-perspective h2 { max-width: 18ch; margin: 3rem 0 4rem; font-size: clamp(2.8rem, 5vw, 6rem); line-height: .98; letter-spacing: -.055em; font-weight: 650; }
.about-perspective h2 span { color: #989f99; }
.about-view-pair { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.5rem, 7vw, 8rem); }
.about-view { padding: clamp(1.5rem, 3vw, 3rem); border: 1px solid #38453e; min-width: 0; }
.about-view-inside { background: #101b15; }
.about-view-outside { background: #050505; }
.about-view-label { margin: 0; font-size: .75rem; letter-spacing: .12em; color: #a5b0a8; }
.about-view h3 { font-size: clamp(3.5rem, 8vw, 9rem); letter-spacing: -.065em; line-height: .98; margin: 2.5rem 0 1.5rem; font-weight: 680; }
.about-view h3 span { color: var(--teal); }
.about-view-outside h3 { color: #a5b0a8; }
.about-view > p:last-child { max-width: 35rem; font-size: 1.0625rem; line-height: 1.65; color: #a5b0a8; margin: 1.5rem 0 0; }
.about-view .about-view-verbs { color: var(--white); margin: 0; line-height: 1.5; font-size: 1rem; }
.about-view-union { position: relative; text-align: center; padding-top: clamp(4rem, 7vw, 7rem); }
.about-union-line { display: block; height: 3rem; width: 1px; margin: 0 auto 2rem; background: var(--teal); transform-origin: top; }
.about-view-union > p:not(.about-union-note) { margin: 0; color: #a5b0a8; font-size: clamp(2rem, 4.4vw, 5rem); line-height: 1.08; letter-spacing: -.045em; }
.about-view-union strong { color: var(--teal); font-weight: 600; }
.about-union-note { margin: 1.75rem 0 0; color: #a5b0a8; font-size: 1.0625rem; line-height: 1.6; }
.about-motion .about-view-inside { transform: translateX(calc(var(--union-progress, 0) * 2.5vw)); }
.about-motion .about-view-outside { transform: translateX(calc(var(--union-progress, 0) * -2.5vw)); }
.about-motion .about-view-union > p { opacity: calc(.3 + var(--union-progress, 0) * .7); }
.about-motion .about-union-line { transform: scaleY(calc(.15 + var(--union-progress, 0) * .85)); }

.about-invitation { padding-top: clamp(5rem, 8vw, 8rem); padding-bottom: 2rem; }
.about-invitation-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: clamp(3rem, 7vw, 8rem); align-items: end; margin-top: 4rem; }
.about-invitation h2 { margin: 0; font-size: clamp(3.2rem, 6.4vw, 7.5rem); letter-spacing: -.06em; line-height: .94; font-weight: 650; }
.about-invitation h2 span { color: #767e77; }
.about-invitation-copy { max-width: 37rem; }
.about-invitation-copy > p { color: #5d655f; font-size: 1.0625rem; line-height: 1.6; }
.about-invitation-copy .about-invitation-lead { color: var(--black); font-size: clamp(1.4rem, 2.1vw, 2.2rem); line-height: 1.2; letter-spacing: -.03em; margin: 0 0 1.5rem; }
.about-invitation-actions { display: flex; flex-direction: column; align-items: start; gap: 1.5rem; margin-top: 2.5rem; }
.about-primary-link { background: var(--black); color: var(--white); padding: 1.25rem 1.5rem; display: flex; align-items: center; justify-content: space-between; gap: 2rem; font-size: 1rem; font-weight: 600; line-height: 1.4; transition: background .25s, color .25s; }
.about-primary-link span, .about-secondary-link span { transition: transform .35s var(--about-ease); }
.about-primary-link:hover { background: #00dfae; color: var(--black); }
.about-primary-link:hover span, .about-secondary-link:hover span { transform: translate(.2rem, -.2rem); }
.about-secondary-link { font-size: 1rem; display: inline-flex; align-items: center; gap: 1.5rem; border-bottom: 1px solid var(--line-light); padding: .5rem 0; }
.about-signoff { margin-top: clamp(4rem, 8vw, 8rem); border-top: 1px solid var(--line-light); padding-top: 2rem; display: flex; align-items: center; gap: 2rem; }
.about-signoff img { width: 8rem; height: 5rem; object-fit: contain; filter: brightness(0); }
.about-signoff div p { margin: 0 0 .5rem; font-size: .875rem; font-weight: 700; letter-spacing: .06em; }
.about-signoff div span { color: #5d655f; font-size: .75rem; line-height: 1.6; letter-spacing: .05em; }
.about-signoff-note { margin-left: auto; font-size: 1rem; line-height: 1.5; color: #5d655f; }

@media (prefers-reduced-motion: no-preference) {
  .about-rare { animation: rare-arrival 1.35s var(--about-ease) both; }
  @keyframes rare-arrival { from { transform: translate(7vw, .15em) rotate(-4deg); color: var(--teal); } to { transform: none; color: #9a9f9b; } }
}
@media (max-width: 1099px) {
  .about-opening-grid { grid-template-columns: 1fr; gap: 3rem; }
  .about-opening h1 { font-size: clamp(5rem, 15vw, 10rem); }
  .about-opening-copy { max-width: 44rem; padding: 0; border-left: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
  .about-opening-copy > p { margin: 0; }
  .about-story-stage { grid-template-columns: minmax(0, .65fr) minmax(0, 1.35fr); gap: 3rem; }
  .about-story-index h2 { font-size: clamp(2.4rem, 4.6vw, 4rem); }
  .about-chapter h3 { font-size: clamp(2.5rem, 5vw, 4rem); }
  .about-chapter h3 br { display: none; }
  .about-invitation-grid { grid-template-columns: 1fr 1fr; gap: 3rem; }
  .about-primary-link { gap: 1rem; }
}
@media (max-width: 700px) {
  .about-opening { min-height: 94svh; padding-top: calc(var(--header-h) + 2rem); }
  .about-opening-meta > span { display: none; }
  .about-opening-grid { padding: 3.5rem 0; }
  .about-opening h1 { font-size: clamp(4rem, 17vw, 7rem); }
  .about-opening-copy { display: block; }
  .about-opening-copy > p { margin-top: 1.5rem; }
  .about-opening-copy .about-personal-line { font-size: 1.35rem; }
  .about-opening-foot { gap: 1rem; }
  .about-opening-foot p { font-size: .875rem; }
  .about-opening-foot a { gap: .75rem; white-space: nowrap; }
  .about-story { padding-top: 4rem; padding-bottom: 4rem; }
  .about-story-stage { grid-template-columns: 1fr; gap: 3.5rem; }
  .about-story-index { position: static; }
  .about-story-index h2 { font-size: clamp(2.6rem, 10vw, 4rem); margin: 2rem 0; }
  .about-story-index h2 br { display: none; }
  .about-chapter-nav { max-width: none; }
  .about-chapters { gap: 4rem; }
  .about-chapter h3 { font-size: clamp(2.4rem, 9.7vw, 4rem); margin: 1.5rem 0; }
  .about-chapter-copy p, .about-takeaway { font-size: 1rem; }
  .about-path-quote p { font-size: 1.6rem; }
  .about-perspective { padding-top: 4rem; padding-bottom: 4rem; }
  .about-perspective h2 { font-size: clamp(2.6rem, 10vw, 4rem); margin: 2rem 0 3rem; }
  .about-view-pair { grid-template-columns: 1fr; gap: 1rem; }
  .about-view { padding: 1.5rem; }
  .about-view h3 { font-size: clamp(3.5rem, 17vw, 5.5rem); margin: 2rem 0 1rem; }
  .about-view > p:last-child { font-size: 1rem; }
  .about-motion .about-view { transform: none; }
  .about-view-union { padding-top: 2rem; text-align: left; }
  .about-union-line { margin-left: 0; }
  .about-view-union > p:not(.about-union-note) { font-size: clamp(2rem, 8vw, 3rem); }
  .about-motion .about-view-union > p { opacity: 1; }
  .about-invitation { padding-top: 4rem; }
  .about-invitation-grid { grid-template-columns: 1fr; gap: 2.5rem; margin-top: 2.5rem; }
  .about-invitation h2 { font-size: clamp(2.8rem, 11.5vw, 4.5rem); }
  .about-invitation-copy .about-invitation-lead { font-size: 1.6rem; }
  .about-primary-link { padding: 1.2rem; width: 100%; }
  .about-invitation-actions { align-items: stretch; }
  .about-secondary-link { align-self: start; }
  .about-signoff { flex-wrap: wrap; gap: 1.25rem; margin-top: 4rem; }
  .about-signoff img { width: 6rem; height: 4rem; }
  .about-signoff div { flex: 1 1 12rem; }
  .about-signoff-note { margin: 0; width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  .about-page *, .about-page *::before, .about-page *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}
@media print {
  .about-opening, .about-story, .about-perspective, .about-invitation { min-height: 0 !important; height: auto !important; }
  .about-story-stage, .about-story-index { position: static !important; min-height: 0 !important; }
  .about-chapters { display: block; }
  .about-chapter { display: block; opacity: 1 !important; visibility: visible !important; transform: none !important; margin-bottom: 3rem; }
  .about-view { transform: none !important; }
  .about-view-union > p { opacity: 1 !important; }
}