:root {
  --ink: #17242e;
  --muted: #596771;
  --navy: #173b52;
  --navy-deep: #102c3f;
  --blue: #2b617f;
  --blue-soft: #eaf1f4;
  --paper: #fffdf9;
  --cream: #f5f1e8;
  --line: #d8d3c9;
  --shadow: 0 18px 48px rgba(23, 36, 46, 0.09);
  --radius: 0.75rem;
  --content: 70rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: var(--blue);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--navy-deep);
  text-decoration-thickness: 0.12em;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 3px solid #9a5b00;
  outline-offset: 4px;
}

h1,
h2,
h3 {
  color: var(--navy-deep);
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 600;
  line-height: 1.18;
  text-wrap: balance;
}

h1 {
  margin: 0 0 1rem;
  font-size: clamp(2.65rem, 6vw, 5.4rem);
  letter-spacing: -0.035em;
}

h2 {
  margin: 0 0 1.25rem;
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  letter-spacing: -0.02em;
}

h3 {
  margin: 0;
  font-size: clamp(1.25rem, 2vw, 1.55rem);
}

p,
ul,
ol,
blockquote {
  margin-top: 0;
}

.container {
  width: min(calc(100% - 2rem), var(--content));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.7rem 1rem;
  transform: translateY(-160%);
  border-radius: 0.35rem;
  background: var(--navy-deep);
  color: #fff;
  font-weight: 700;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(255, 253, 249, 0.96);
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  min-height: 5rem;
}

.site-name {
  color: var(--navy-deep);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.22rem;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.25rem 1.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-list a {
  display: inline-block;
  padding: 0.35rem 0;
  border-bottom: 2px solid transparent;
  color: var(--ink);
  font-size: 0.94rem;
  font-weight: 650;
  text-decoration: none;
}

.nav-list a:hover,
.nav-list a[aria-current="page"] {
  border-color: var(--blue);
  color: var(--blue);
}

.hero {
  padding: clamp(3.5rem, 9vw, 7.5rem) 0;
  background:
    linear-gradient(110deg, rgba(245, 241, 232, 0.96), rgba(255, 253, 249, 0.72)),
    radial-gradient(circle at 88% 15%, #d8e5e9 0, transparent 42%);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(15rem, 0.55fr);
  align-items: center;
  gap: clamp(3rem, 7vw, 6rem);
}

.eyebrow {
  margin-bottom: 1rem;
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.lede {
  max-width: 44rem;
  margin-bottom: 1rem;
  color: #344650;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.2rem, 2.5vw, 1.55rem);
  line-height: 1.55;
}

.interest-summary {
  margin-bottom: 1.75rem;
}

.interest-label {
  margin-bottom: 0.55rem;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.interest-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.interest-list li {
  padding: 0.35rem 0.7rem;
  border: 1px solid #b8c7ce;
  border-radius: 999px;
  background: var(--blue-soft);
  color: var(--navy-deep);
  font-size: 0.88rem;
  font-weight: 700;
  line-height: 1.3;
}

.interest-list-compact {
  max-width: 44rem;
}

.research-interests-card {
  grid-column: 1 / -1;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.8rem;
  padding: 0.68rem 1.05rem;
  border: 1px solid var(--navy);
  border-radius: 0.35rem;
  background: var(--navy);
  color: #fff;
  font-size: 0.88rem;
  font-weight: 800;
  letter-spacing: 0.025em;
  line-height: 1;
  text-decoration: none;
}

.button:hover {
  border-color: var(--navy-deep);
  background: var(--navy-deep);
  color: #fff;
}

.button.secondary {
  background: transparent;
  color: var(--navy);
}

.button.secondary:hover {
  background: var(--blue-soft);
  color: var(--navy-deep);
}

.portrait-wrap {
  position: relative;
  max-width: 22rem;
  margin-inline: auto;
}

.portrait {
  position: relative;
  z-index: 1;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 3;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  object-fit: cover;
}

.portrait-mobile {
  display: none;
}

.section {
  padding: clamp(3.75rem, 8vw, 6.5rem) 0;
}

.section.alt {
  border-block: 1px solid var(--line);
  background: var(--cream);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.55fr) minmax(0, 1.45fr);
  gap: 2rem;
  margin-bottom: 2.4rem;
}

.section-heading > p {
  max-width: 44rem;
  margin: 0;
  color: var(--muted);
}

.fact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.fact-card,
.paper-card,
.course-card,
.note-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: 0 8px 24px rgba(23, 36, 46, 0.04);
}

.fact-card {
  padding: clamp(1.35rem, 3vw, 2rem);
}

.fact-card h3 {
  margin-bottom: 0.75rem;
}

.fact-card ul {
  margin-bottom: 0;
  padding-left: 1.25rem;
}

.paper-list {
  display: grid;
  gap: 1rem;
}

.paper-card {
  padding: clamp(1.4rem, 3vw, 2.1rem);
}

.paper-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1.25rem;
  margin-bottom: 0.8rem;
}

.paper-card-header .button {
  flex: 0 0 auto;
}

.paper-meta {
  margin-bottom: 1rem;
  color: var(--muted);
  font-size: 0.94rem;
}

.paper-meta:last-child,
.paper-card > :last-child {
  margin-bottom: 0;
}

.status {
  display: inline-block;
  margin: 0 0.35rem 0.2rem 0;
  padding: 0.17rem 0.52rem;
  border-radius: 999px;
  background: var(--blue-soft);
  color: var(--navy-deep);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.025em;
}

.page-hero {
  padding: clamp(3.5rem, 8vw, 6.2rem) 0;
  border-bottom: 1px solid var(--line);
  background: var(--cream);
}

.page-hero h1 {
  max-width: 52rem;
  font-size: clamp(2.7rem, 6vw, 4.8rem);
}

.page-hero .lede {
  margin-bottom: 0;
}

.research-section + .research-section {
  margin-top: clamp(4rem, 8vw, 6.5rem);
}

.research-section > h2 {
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--line);
}

.research-section .paper-card + .paper-card {
  margin-top: 1.25rem;
}

.abstract p:last-child {
  margin-bottom: 0;
}

.abstract-disclosure {
  margin-top: 1rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--line);
}

.abstract-disclosure summary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  color: var(--blue);
  font-size: 0.9rem;
  font-weight: 800;
  list-style: none;
  user-select: none;
}

.abstract-disclosure summary::-webkit-details-marker {
  display: none;
}

.abstract-disclosure summary::before {
  width: 0.85rem;
  content: "▸";
  color: var(--navy-deep);
  font-size: 1.05rem;
  line-height: 1;
}

.abstract-disclosure[open] summary::before {
  content: "▾";
}

.abstract-disclosure[open] summary {
  margin-bottom: 1rem;
}

.hide-label {
  display: none;
}

.abstract-disclosure[open] .show-label {
  display: none;
}

.abstract-disclosure[open] .hide-label {
  display: inline;
}

.editor-note {
  margin-top: 1.15rem;
  padding: 0.9rem 1rem;
  border-left: 4px solid var(--blue);
  background: var(--blue-soft);
  color: #344650;
  font-size: 0.93rem;
}

.course-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.course-card {
  padding: clamp(1.4rem, 3vw, 2rem);
}

.course-card h3 {
  margin-bottom: 0.65rem;
}

.course-card ol,
.course-card ul {
  margin-bottom: 0;
  padding-left: 1.25rem;
}

.course-card li + li {
  margin-top: 0.6rem;
}

.stacked-card {
  margin-top: 1.25rem;
}

.quote-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.25rem;
}

blockquote {
  margin-bottom: 0;
  padding: 1.35rem;
  border-left: 4px solid #9eb4be;
  background: var(--cream);
  color: #354650;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.05rem;
}

.feature-card {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(15rem, 0.8fr);
  align-items: center;
  gap: clamp(2rem, 5vw, 4rem);
  padding: clamp(1.5rem, 4vw, 3rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: var(--shadow);
}

.feature-card h2 {
  margin-bottom: 0.8rem;
}

.feature-mark {
  display: grid;
  min-height: 15rem;
  place-items: center;
  border-radius: calc(var(--radius) - 0.15rem);
  background: linear-gradient(135deg, var(--navy-deep), var(--blue));
  color: #fff;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(3rem, 8vw, 5rem);
  line-height: 1;
}

.photo-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.photo-card {
  overflow: hidden;
  margin: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  text-align: center;
}

.photo-card a {
  color: var(--ink);
  text-decoration: none;
}

.photo-card img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  transition: transform 180ms ease;
  border: 0;
  background: transparent;
  object-fit: contain;
  object-position: center;
}

.photo-card a:hover img {
  transform: none;
}

.photo-caption {
  display: block;
  padding: 0.9rem 1rem 1rem;
  font-weight: 700;
  text-align: center;
}

.site-footer {
  padding: 2.5rem 0;
  background: var(--navy-deep);
  color: #dce6eb;
  font-size: 0.9rem;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.site-footer p,
.site-footer address {
  margin: 0;
}

.site-footer address {
  font-style: normal;
}

.site-footer a {
  color: #fff;
}

.error-page {
  display: grid;
  min-height: 72vh;
  place-items: center;
  padding: 3rem 0;
  text-align: center;
}

.error-code {
  margin-bottom: 0.25rem;
  color: var(--blue);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.error-page h1 {
  font-size: clamp(3.4rem, 10vw, 7rem);
}

.error-page p {
  max-width: 34rem;
  margin-inline: auto;
  color: var(--muted);
}

.centered-buttons {
  justify-content: center;
}

/* One-page academic résumé */
.resume-home .site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  box-shadow: 0 4px 18px rgba(23, 36, 46, 0.05);
}

.resume-home section[id] {
  scroll-margin-top: 6.5rem;
}

.resume-home .hero {
  padding: clamp(2.25rem, 4vw, 3.5rem) 0;
}

.resume-home .hero-grid {
  grid-template-columns: minmax(0, 1.65fr) minmax(11rem, 0.35fr);
  gap: clamp(2rem, 5vw, 4rem);
}

.resume-home .hero h1 {
  margin-bottom: 0.6rem;
  font-size: clamp(2.7rem, 5vw, 4.15rem);
}

.resume-home .portrait-wrap {
  max-width: 13rem;
}

.resume-home .lede {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
}

.resume-home .interest-summary {
  margin-bottom: 1.25rem;
}

.resume-home .section {
  padding: clamp(2.8rem, 5vw, 4.2rem) 0;
}

.resume-home .section-heading {
  gap: 1.5rem;
  margin-bottom: 1.65rem;
}

.resume-home .paper-list {
  gap: 0.75rem;
}

.resume-home .paper-card,
.resume-home .course-card,
.resume-home .fact-card,
.link-card {
  box-shadow: none;
}

.resume-home .paper-card {
  padding: clamp(1.15rem, 2.2vw, 1.55rem);
  border-left: 3px solid #9eb4be;
}

.resume-home .paper-card-header {
  margin-bottom: 0.55rem;
}

.resume-home .paper-meta {
  margin-bottom: 0.6rem;
}

.resume-home .abstract-disclosure {
  margin-top: 0.65rem;
  padding-top: 0.6rem;
}

.resume-home .paper-card:hover {
  border-left-color: var(--blue);
}

.compact-project {
  padding-block: 1.4rem;
}

.subsection-heading {
  margin: 2.75rem 0 1rem;
  padding-bottom: 0.65rem;
  border-bottom: 1px solid var(--line);
  font-size: 1.35rem;
}

.section-heading + .subsection-heading {
  margin-top: 0;
}

.resume-course-grid {
  margin-bottom: 1rem;
}

.teaching-feature {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(16rem, 0.75fr);
  align-items: start;
  gap: 2rem;
  margin-top: 1rem;
}

.teaching-feature .eyebrow {
  margin-bottom: 0.4rem;
}

.feedback-disclosure {
  margin-top: 1rem;
  padding-top: 0.8rem;
  border-top: 1px solid var(--line);
}

.feedback-disclosure summary {
  cursor: pointer;
  color: var(--blue);
  font-size: 0.9rem;
  font-weight: 800;
}

.feedback-disclosure blockquote {
  margin-top: 1rem;
  padding: 1rem;
  font-size: 0.96rem;
}

.more-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.link-card {
  padding: clamp(1.4rem, 3vw, 2rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
}

.link-card h3 {
  margin-bottom: 0.65rem;
}

.link-card .eyebrow {
  margin-bottom: 0.45rem;
}

.resume-photo-grid .photo-card {
  box-shadow: none;
}

@media (max-width: 48rem) {
  .site-nav {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.25rem;
    min-height: auto;
    padding: 0.65rem 0;
  }

  .nav-list {
    justify-content: flex-start;
    gap: 0.15rem 0.8rem;
  }

  .nav-list a {
    padding: 0.15rem 0;
    font-size: 0.82rem;
  }

  .hero-grid,
  .section-heading,
  .feature-card {
    grid-template-columns: 1fr;
  }

  .resume-home .hero-grid {
    grid-template-columns: 1fr;
  }

  .resume-home .portrait-wrap {
    display: none;
  }

  .resume-home .hero {
    padding: 1.5rem 0 1.75rem;
  }

  .identity-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 5.75rem;
    align-items: start;
    gap: 0.8rem;
  }

  .portrait-mobile {
    display: block;
    width: 5.75rem;
    height: 7.25rem;
    border-radius: 0.6rem;
    box-shadow: 0 8px 22px rgba(23, 36, 46, 0.14);
    object-fit: cover;
    object-position: center 24%;
  }

  .resume-home .hero h1 {
    margin-bottom: 0.35rem;
    font-size: clamp(2.25rem, 11vw, 2.8rem);
  }

  .resume-home .hero .eyebrow {
    margin-bottom: 0.45rem;
  }

  .resume-home .lede {
    margin-bottom: 0.75rem;
    font-size: 0.98rem;
    line-height: 1.42;
  }

  .resume-home .interest-summary {
    margin-bottom: 0.8rem;
  }

  .resume-home .interest-label {
    margin-bottom: 0.15rem;
    font-size: 0.66rem;
    line-height: 1.2;
  }

  .resume-home .interest-list {
    display: block;
    line-height: 1.3;
  }

  .resume-home .interest-list li {
    display: inline;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    font-size: 0.72rem;
    font-weight: 700;
    line-height: inherit;
  }

  .resume-home .interest-list li:not(:last-child)::after {
    color: var(--muted);
    content: " · ";
  }

  .resume-home .button-row {
    gap: 0.5rem;
  }

  .resume-home .button {
    min-height: 2.35rem;
    padding: 0.55rem 0.8rem;
    font-size: 0.8rem;
  }

  .resume-home .section {
    padding: 2.35rem 0;
  }

  .resume-home .section-heading {
    gap: 0.25rem;
    margin-bottom: 1.15rem;
  }

  .resume-home .section-heading h2 {
    margin-bottom: 0.35rem;
    font-size: 2rem;
  }

  .resume-home .section-heading > p {
    display: none;
  }

  .resume-home .paper-list,
  .resume-home .course-grid {
    gap: 0.65rem;
  }

  .resume-home .paper-card,
  .resume-home .course-card,
  .resume-home .fact-card,
  .resume-home .link-card {
    padding: 1rem;
  }

  .resume-home .paper-card-header {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 0.65rem;
    margin-bottom: 0.4rem;
  }

  .resume-home .paper-card h3 {
    font-size: 1.18rem;
  }

  .resume-home .paper-meta {
    margin-bottom: 0.4rem;
    font-size: 0.87rem;
  }

  .resume-home .abstract-disclosure {
    margin-top: 0.5rem;
    padding-top: 0.5rem;
  }

  .resume-home .abstract-disclosure summary {
    font-size: 0.84rem;
  }

  .resume-home .subsection-heading {
    margin: 1.8rem 0 0.75rem;
  }

  .resume-home section[id] {
    scroll-margin-top: 8.5rem;
  }

  .hero-copy {
    order: 1;
  }

  .portrait-wrap {
    order: 2;
    width: min(70vw, 16rem);
  }

  .fact-grid,
  .course-grid,
  .quote-grid,
  .teaching-feature,
  .more-grid {
    grid-template-columns: 1fr;
  }

  .paper-card-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .photo-grid {
    grid-template-columns: 1fr;
  }

  .photo-card img {
    aspect-ratio: 16 / 10;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

@media print {
  .site-header,
  .site-footer,
  .button-row,
  .paper-card-header .button,
  .skip-link {
    display: none;
  }

  body {
    background: #fff;
    color: #000;
    font-size: 10.5pt;
  }

  .page-hero,
  .section,
  .hero {
    padding: 1.5rem 0;
    background: #fff;
  }

  .paper-card,
  .course-card,
  .fact-card {
    break-inside: avoid;
    box-shadow: none;
  }

  .abstract-disclosure summary {
    display: none;
  }

  .abstract-disclosure > .abstract {
    display: block !important;
  }
}