/* A quieter, more connected layout for Linda's site. */
@view-transition { navigation: auto; }

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

body::before { display: none !important; }
main { flex: 1; }
.nav,
.page-home main,
.page-about main,
.page-story main,
.page-research main,
.page-projects main,
.page-education main,
.page-contact main,
.page-research-detail main,
.page-research-detail .detail-hero,
.page-research-detail .detail-section { animation: none !important; }

.nav { border-bottom-color: var(--line); }
.nav nav a { font-size: 11px; }
.nav-social a { font-size: 11px; }
.button { display: inline-block; }
.button:focus-visible,
.plain-link:focus-visible,
.nav a:focus-visible,
.home-work-card a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

/* Inner pages should read like articles, not full-screen panels. */
.section { padding: 58px clamp(24px, 7vw, 110px); }
.section-number { margin-bottom: 14px; }
.section h2 { font-size: clamp(34px, 3.8vw, 52px); max-width: 1050px; }
.section-intro { max-width: 690px; margin: -8px 0 34px; font-size: 16px; }
.about,
.story,
.publications,
.projects,
.experience { background: var(--paper); }
.story,
.experience,
.projects { border-top: 1px solid var(--line); }
.story-layout,
.about-layout { gap: clamp(30px, 5vw, 76px); }
.story-copy,
.about-copy { color: var(--ink); font-size: 16px; }
.story-steps { margin-top: 42px; }
.story-steps > div { padding: 18px; }
.education-feature { padding: 22px 26px; }
.project { min-height: 0; }
.project-image { height: 165px; }
.project-body h3 { font-size: clamp(25px, 2.6vw, 34px); }
.research-item { padding: 32px 0; }
.page-research .research-content {
  display: grid;
  grid-template-columns: minmax(220px, 300px) minmax(0, 1fr);
  column-gap: clamp(26px, 4vw, 56px);
  align-items: start;
}
.page-research .research-content.research-cover { grid-template-columns: minmax(280px, 410px) minmax(0, 1fr); }
.page-research .research-card-image {
  grid-column: 1;
  grid-row: 1 / 6;
  margin: 0;
}
.page-research .research-card-image img { height: 205px; }
.page-research .research-card-image.research-cover-image img { height: auto; aspect-ratio: 16 / 9; object-fit: cover; padding: 0; }
.page-research .research-content > :not(.research-card-image) { grid-column: 2; }
.page-research .research-content .item-meta { margin: 0 0 10px; }
.page-research .research-content h3 { margin-bottom: 12px; }
.page-research .research-actions { margin: 10px 0 18px; }
.page-research-detail .detail-hero { padding-top: 52px; padding-bottom: 50px; }
.page-research-detail .detail-hero .section-number { margin-bottom: 9px; }
.page-research-detail .detail-hero h1 { font-size: clamp(38px, 4.3vw, 60px); line-height: 1.02; letter-spacing: -.065em; max-width: 960px; }
.page-research-detail .detail-lede { font-size: clamp(17px, 1.6vw, 21px); }
.paper-details { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px 28px; max-width: 920px; margin: 34px 0 0; padding-top: 22px; border-top: 1px solid var(--line); }
.paper-details div { min-width: 0; }
.paper-details dt { margin-bottom: 6px; color: var(--accent); font: 10px/1.4 var(--mono); letter-spacing: .06em; text-transform: uppercase; }
.paper-details dd { margin: 0; color: var(--ink); font-size: 14px; line-height: 1.5; }
.page-research-detail .detail-section { padding-top: 66px; padding-bottom: 66px; }
.page-research-detail .detail-tint,
.paper-figures { background: var(--cream); }
.page-research-detail .detail-cta { padding-top: 58px; padding-bottom: 58px; }
.page-contact .contact { min-height: 0; }
.page-contact main { background: var(--ink); }
.page-contact .contact-footer { margin-top: 72px; }

/* Homepage: a concise index to the full pages. */
.page-home { background: var(--paper); }
.page-home main { width: 100%; }
.home-intro,
.home-work,
.home-projects,
.home-about,
.home-contact {
  padding: clamp(50px, 5.5vw, 86px) clamp(24px, 7vw, 110px);
  border-bottom: 1px solid var(--line);
}
.home-intro { padding-top: clamp(48px, 6vw, 92px); padding-bottom: clamp(55px, 7vw, 100px); }
.home-intro-meta {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  color: var(--accent);
  font: 11px/1.4 var(--mono);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 38px;
}
.home-intro-meta span:last-child { color: var(--muted); }
.home-intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(330px, .75fr);
  gap: clamp(40px, 8vw, 130px);
  align-items: end;
}
.home-intro h1 {
  font: 600 clamp(78px, 10vw, 150px)/.9 var(--sans);
  letter-spacing: -.09em;
  margin: 0;
}
.home-intro h1 em {
  display: block;
  font-family: var(--serif);
  font-weight: 500;
  letter-spacing: -.08em;
  color: var(--accent);
}
.home-intro-copy { max-width: 520px; }
.home-intro-copy > p { color: var(--muted); margin: 0 0 16px; font-size: 16px; }
.home-intro-copy .home-lede { color: var(--ink); font-size: clamp(21px, 2.3vw, 29px); line-height: 1.35; font-weight: 500; }
.home-school {
  border-top: 1px solid var(--line);
  padding-top: 18px;
  margin-top: 27px;
  color: var(--muted);
  font: 11px/1.6 var(--mono);
}
.home-school span { display: block; }
.home-school span:first-child { color: var(--ink); }
.home-links { display: flex; flex-wrap: wrap; align-items: center; gap: 20px; margin-top: 26px; }
.plain-link {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  color: var(--ink);
  font: 500 12px/1.5 var(--mono);
  text-decoration: none;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 3px;
  transition: color .18s ease, border-color .18s ease;
}
.plain-link:hover { color: var(--accent); }
.plain-link span { font: 16px var(--sans); }
.home-section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 30px;
  margin-bottom: 30px;
}
.home-kicker,
.home-card-meta {
  margin: 0 0 13px;
  color: var(--accent);
  font: 10px/1.5 var(--mono);
  text-transform: uppercase;
  letter-spacing: .06em;
}
.home-section-head h2,
.home-about h2,
.home-contact h2 {
  margin: 0;
  font: 600 clamp(36px, 4.6vw, 62px)/1.04 var(--sans);
  letter-spacing: -.075em;
}
.home-work-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
.home-work-card { min-width: 0; border: 1px solid var(--line); background: #fff; }
.home-work-image {
  display: block;
  height: 200px;
  background: var(--cream);
  border-bottom: 1px solid var(--line);
  padding: 18px;
}
.home-work-image img { display: block; width: 100%; height: 100%; object-fit: contain; }
.page-home .home-work-card .home-work-image.research-cover-image { height: auto; aspect-ratio: 16 / 9; padding: 0; overflow: hidden; background: #121722; }
.page-home .home-work-card .home-work-image.research-cover-image img { height: auto; aspect-ratio: 16 / 9; object-fit: cover; }
.home-work-copy { padding: 24px 26px 27px; }
.home-work-copy h3 { font-size: clamp(23px, 2.4vw, 32px); line-height: 1.12; letter-spacing: -.055em; margin: 0 0 13px; }
.home-work-copy h3 a { color: inherit; text-decoration: none; }
.home-work-copy h3 a:hover { color: var(--accent); }
.home-work-copy > p:not(.home-card-meta) { color: var(--muted); margin: 0 0 22px; max-width: 520px; }
.home-project-list { border-top: 1px solid var(--line); }
.home-project-row {
  display: grid;
  grid-template-columns: minmax(190px, .8fr) minmax(260px, 1.1fr) auto;
  align-items: start;
  gap: 28px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}
.home-project-row .home-card-meta { margin-bottom: 7px; }
.home-project-row h3 { font-size: clamp(23px, 2.7vw, 35px); letter-spacing: -.055em; line-height: 1.12; margin: 0; }
.home-project-row > p { margin: 0; max-width: 510px; color: var(--muted); }
.home-project-row .plain-link { white-space: nowrap; }
.home-about { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(35px, 8vw, 120px); background: var(--cream); }
.home-about > div:last-child { max-width: 510px; }
.home-about > div:last-child p { font-size: 18px; line-height: 1.6; margin: 0 0 24px; }
.home-about-links { display: flex; flex-wrap: wrap; gap: 20px; }
.home-contact { background: var(--ink); color: var(--paper); }
.home-contact .home-kicker { color: var(--peach); }
.home-contact > div { display: flex; align-items: end; justify-content: space-between; gap: 28px; }
.home-contact h2 { max-width: 710px; }
.home-contact .button { background: var(--peach); color: var(--ink); white-space: nowrap; }

@media (max-width: 920px) {
  .home-intro-grid { grid-template-columns: 1fr; gap: 34px; }
  .home-intro-copy { max-width: 650px; }
  .home-project-row { grid-template-columns: 1fr 1.2fr; }
  .home-project-row .plain-link { grid-column: 2; justify-self: start; }
  .page-research .research-content { grid-template-columns: minmax(180px, 240px) minmax(0, 1fr); }
}

@media (max-width: 780px) {
  .nav {
    height: auto;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 7px 12px;
    padding: 11px 5vw 0;
  }
  .nav .brand { align-self: center; }
  .nav-social { display: flex; align-items: center; border: 0; padding-left: 0; grid-column: 2; grid-row: 1; }
  .nav > nav {
    grid-column: 1 / -1;
    grid-row: 2;
    margin-left: 0;
    overflow-x: auto;
    white-space: nowrap;
    gap: 13px;
    padding: 4px 0 10px;
    scrollbar-width: none;
  }
  .nav > nav::-webkit-scrollbar { display: none; }
  .nav nav a { font-size: 10px; flex: none; }
  .section { padding: 48px 6vw; }
  .section h2 { font-size: clamp(35px, 8vw, 48px); }
  .home-intro,
  .home-work,
  .home-projects,
  .home-about,
  .home-contact { padding: 48px 6vw; }
  .home-intro-meta span:last-child { display: none; }
  .home-intro h1 { font-size: clamp(70px, 17vw, 112px); }
  .home-work-grid,
  .home-about { grid-template-columns: 1fr; }
  .home-work-image { height: 170px; }
  .home-section-head { align-items: start; }
  .home-project-row { grid-template-columns: 1fr; gap: 10px; }
  .home-project-row .plain-link { grid-column: 1; }
  .home-about { gap: 26px; }
  .home-contact > div { align-items: start; flex-direction: column; }
  .page-research .research-content { display: block; }
  .page-research .research-card-image { margin: 16px 0 22px; }
  .page-research .research-card-image img { height: 175px; }
  .page-research-detail .detail-hero { padding-top: 48px; padding-bottom: 48px; }
  .page-research-detail .detail-section { padding-top: 48px; padding-bottom: 48px; }
  .paper-details { grid-template-columns: 1fr; gap: 14px; }
}

@media (max-width: 480px) {
  .home-intro { padding-top: 34px; padding-bottom: 42px; }
  .home-intro-meta { margin-bottom: 24px; }
  .home-intro-grid { gap: 23px; }
  .home-intro h1 { font-size: clamp(66px, 17vw, 88px); }
  .home-intro-copy .home-lede { font-size: 21px; }
  .home-intro-copy > p { margin-bottom: 11px; }
  .home-school { padding-top: 14px; margin-top: 18px; }
  .home-links { margin-top: 19px; }
  .home-section-head { display: block; }
  .home-section-head .plain-link { margin-top: 16px; }
  .home-work-copy { padding: 21px; }
  .home-project-row h3 { font-size: 26px; }
  .project-image { height: 145px; }
  .page-contact .contact-email,
  .page-contact .contact-linkedin,
  .page-contact .contact-github { font-size: clamp(22px, 7vw, 34px); max-width: 100%; overflow-wrap: anywhere; }
}

/* Same-site navigation turns from one portfolio page to the next like a book leaf. */
::view-transition-group(root) {
  perspective: 1800px;
  transform-style: preserve-3d;
}
::view-transition-image-pair(root) {
  isolation: isolate;
  perspective: 1800px;
  transform-style: preserve-3d;
}
::view-transition-old(root),
::view-transition-new(root) {
  backface-visibility: hidden;
  transform-style: preserve-3d;
  animation-duration: .78s;
  animation-timing-function: cubic-bezier(.56,.04,.24,1);
  animation-fill-mode: both;
}
::view-transition-old(root) {
  z-index: 2;
  transform-origin: left center;
  box-shadow: inset -3vw 0 3vw -2vw rgba(0,0,0,.58);
  animation-name: book-leaf-turn-away;
}
::view-transition-new(root) {
  z-index: 1;
  transform-origin: right center;
  box-shadow: inset 3vw 0 3vw -2vw rgba(0,0,0,.42);
  animation-duration: .84s;
  animation-delay: .04s;
  animation-timing-function: cubic-bezier(.18,.72,.24,1);
  animation-name: book-leaf-turn-in;
}
@keyframes book-leaf-turn-away {
  0% { transform: rotateY(0); filter: brightness(1); opacity: 1; }
  42% { filter: brightness(.82); }
  100% { transform: rotateY(-84deg) scale(.992); filter: brightness(.52); opacity: .24; }
}
@keyframes book-leaf-turn-in {
  0% { transform: rotateY(78deg) scale(.99); filter: brightness(.48); opacity: .12; }
  48% { filter: brightness(.82); opacity: .9; }
  100% { transform: rotateY(0) scale(1); filter: brightness(1); opacity: 1; }
}
@media (max-width: 600px) {
  ::view-transition-old(root) { animation-duration: .58s; }
  ::view-transition-new(root) { animation-duration: .64s; }
}
@media (prefers-reduced-motion: reduce) {
  ::view-transition-old(root),
  ::view-transition-new(root) { animation: none !important; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation: none !important; transition: none !important; }
}

/* Keep the expanded chapter navigation usable before the mobile breakpoint. */
@media (min-width: 781px) and (max-width: 1100px) {
  body .nav { height: auto; display: grid; grid-template-columns: 1fr auto; gap: 8px 16px; padding: 11px 5vw 0; }
  body .nav .brand { grid-column: 1; grid-row: 1; align-self: center; }
  body .nav-social { grid-column: 2; grid-row: 1; align-self: center; }
  body .nav > nav { grid-column: 1 / -1; grid-row: 2; width: 100%; margin-left: 0; padding: 5px 0 12px; overflow-x: auto; white-space: nowrap; }
  body .nav nav a { flex: none; }
}