:root {
  --paper: #f4f1e9;
  --paper-raised: #fbfaf6;
  --ink: #14263d;
  --ink-soft: #526174;
  --blue: #1e5eaa;
  --blue-dark: #123f75;
  --line: #d4d7d6;
  --line-strong: #abb3ba;
  --accent: #d8673c;
  --shadow: 0 24px 70px rgba(20, 38, 61, 0.14);
  --serif: Georgia, "Times New Roman", serif;
  --sans: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: light;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    linear-gradient(90deg, transparent 0 7.5%, rgba(30, 94, 170, 0.055) 7.5% calc(7.5% + 1px), transparent calc(7.5% + 1px)),
    var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--blue-dark);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a:hover {
  color: var(--blue);
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 3px solid rgba(216, 103, 60, 0.45);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  left: 1rem;
  top: 1rem;
  z-index: 100;
  transform: translateY(-180%);
  padding: 0.65rem 0.9rem;
  border-radius: 0.25rem;
  background: var(--ink);
  color: #fff;
}

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

.page-shell,
.nav-shell {
  width: min(1120px, calc(100% - 3rem));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(20, 38, 61, 0.12);
  background: rgba(244, 241, 233, 0.92);
  backdrop-filter: blur(14px);
}

.nav-shell {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.site-name {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--ink);
  font-weight: 650;
  text-decoration: none;
  letter-spacing: -0.01em;
}

.site-mark {
  display: grid;
  width: 2.35rem;
  height: 2.35rem;
  place-items: center;
  background: var(--ink);
  color: #fff;
  font-family: var(--serif);
  font-size: 0.78rem;
  letter-spacing: 0.09em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.main-nav a {
  position: relative;
  padding: 0.45rem 0.7rem;
  color: var(--ink-soft);
  font-size: 0.93rem;
  font-weight: 600;
  text-decoration: none;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0.7rem;
  right: 0.7rem;
  bottom: 0.24rem;
  height: 2px;
  transform: scaleX(0);
  transform-origin: left;
  background: var(--accent);
  transition: transform 160ms ease;
}

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

.main-nav a:hover::after,
.main-nav a[aria-current="page"]::after {
  transform: scaleX(1);
}

.home-hero {
  display: grid;
  grid-template-columns: minmax(420px, 1.12fr) minmax(400px, 0.88fr);
  gap: clamp(2.5rem, 5vw, 5rem);
  align-items: center;
  min-height: calc(100vh - 77px);
  padding-block: clamp(3rem, 8vw, 7rem);
}

.portrait-frame {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  box-shadow: var(--shadow);
  background: #d7d5cc;
}

.portrait-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  border: 1px solid rgba(255, 255, 255, 0.5);
  pointer-events: none;
}

.portrait-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 5%;
}

.portrait-caption {
  position: absolute;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  z-index: 2;
  width: fit-content;
  max-width: calc(100% - 2rem);
  padding: 0.4rem 0.65rem;
  background: rgba(20, 38, 61, 0.87);
  color: #fff;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  line-height: 1.35;
}

.eyebrow {
  margin: 0 0 1.1rem;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 750;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  text-wrap: balance;
}

h1 {
  max-width: 10ch;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2.65rem, 5.5vw, 4.9rem);
  font-weight: 500;
  letter-spacing: -0.055em;
  line-height: 0.94;
}

.role {
  max-width: 42rem;
  margin: 1.5rem 0 0;
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: clamp(1.18rem, 2.1vw, 1.55rem);
  line-height: 1.45;
}

.contact-block {
  margin-top: clamp(2.25rem, 5vw, 4rem);
  padding-top: 1.5rem;
  border-top: 1px solid var(--line-strong);
}

.contact-block h2 {
  margin: 0 0 1.1rem;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.contact-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.1rem 2rem;
  margin: 0;
}

.contact-list div {
  min-width: 0;
}

.contact-list dt {
  margin-bottom: 0.16rem;
  color: var(--ink-soft);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.contact-list dd {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.55;
  overflow-wrap: anywhere;
}

.home-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  padding-block: 0 6rem;
}

.feature-link {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 1.25rem;
  align-items: start;
  min-height: 12rem;
  padding: clamp(1.4rem, 3vw, 2rem);
  border: 1px solid var(--line);
  background: rgba(251, 250, 246, 0.68);
  color: var(--ink);
  text-decoration: none;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.feature-link:hover {
  transform: translateY(-4px);
  border-color: var(--blue);
  background: var(--paper-raised);
  color: var(--ink);
}

.feature-number {
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.feature-link strong {
  display: block;
  margin: -0.25rem 0 0.7rem;
  font-family: var(--serif);
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 500;
  line-height: 1.15;
}

.feature-link small {
  display: block;
  max-width: 31rem;
  color: var(--ink-soft);
  font-size: 0.95rem;
  line-height: 1.55;
}

.arrow {
  font-size: 1.25rem;
}

.site-footer {
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 0.82rem;
}

.site-footer .page-shell {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.5rem;
}

.page-hero {
  padding-block: clamp(4rem, 8vw, 7rem) clamp(3rem, 6vw, 5rem);
  border-bottom: 1px solid var(--line-strong);
}

.page-hero h1 {
  max-width: none;
  font-size: clamp(2.9rem, 6vw, 5rem);
}

.page-hero > p:last-of-type {
  max-width: 47rem;
  margin: 1.6rem 0 0;
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: clamp(1.15rem, 2.2vw, 1.45rem);
  line-height: 1.55;
}

.content-layout {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: clamp(2.5rem, 6vw, 6rem);
  padding-block: clamp(3rem, 6vw, 5rem) 7rem;
}

.section-index {
  position: sticky;
  top: 7rem;
  align-self: start;
  display: flex;
  flex-direction: column;
  padding-top: 0.9rem;
  border-top: 2px solid var(--ink);
}

.section-index p {
  margin: 0 0 0.9rem;
  color: var(--ink-soft);
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.section-index a {
  padding: 0.38rem 0;
  color: var(--ink-soft);
  font-size: 0.91rem;
  font-weight: 600;
  text-decoration: none;
}

.section-index a:hover {
  color: var(--blue);
}

.teaching-content,
.cv-content {
  min-width: 0;
}

.year-section,
.cv-section {
  scroll-margin-top: 6.5rem;
}

.year-section + .year-section,
.cv-section + .cv-section {
  margin-top: clamp(5rem, 9vw, 8.5rem);
}

.section-heading {
  display: flex;
  align-items: baseline;
  gap: 1.1rem;
  margin-bottom: 2rem;
}

.section-heading > span {
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.section-heading h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1.05;
}

.course-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
  align-items: start;
}

.course-grid-single {
  grid-template-columns: minmax(0, 1fr);
}

.course-card {
  border: 1px solid var(--line);
  background: rgba(251, 250, 246, 0.76);
}

.course-card-head {
  display: flex;
  gap: 1rem;
  align-items: center;
  min-height: 8rem;
  padding: 1.6rem;
  border-bottom: 1px solid var(--line);
}

.course-code {
  display: grid;
  flex: 0 0 3rem;
  width: 3rem;
  height: 3rem;
  place-items: center;
  border-radius: 50%;
  background: var(--ink);
  color: #fff;
  font-family: var(--serif);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
}

.course-card h3 {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.65rem;
  font-weight: 500;
  line-height: 1.2;
}

.course-card-head p {
  margin: 0.3rem 0 0;
  color: var(--ink-soft);
  font-size: 0.9rem;
  line-height: 1.4;
}

.resource-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.resource-group summary {
  display: flex;
  justify-content: space-between;
  gap: 1.25rem;
  align-items: center;
  padding: 1rem 1.2rem;
  cursor: pointer;
  list-style: none;
  transition: background 150ms ease;
}

.resource-group + .resource-group {
  border-top: 1px solid var(--line);
}

.resource-group summary::-webkit-details-marker {
  display: none;
}

.resource-group summary:hover,
.resource-group summary:focus-visible {
  background: rgba(30, 94, 170, 0.07);
}

.resource-group summary strong,
.resource-group summary small,
.resource-pending strong,
.resource-pending small {
  display: block;
}

.resource-group summary strong,
.resource-pending strong {
  font-size: 0.92rem;
  line-height: 1.35;
}

.resource-group summary small,
.resource-pending small {
  margin-top: 0.15rem;
  color: var(--ink-soft);
  font-size: 0.76rem;
  line-height: 1.4;
}

.resource-group-action {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 0.45rem;
  color: var(--accent);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.resource-group-action::after {
  content: "+";
  width: 1rem;
  font-size: 1rem;
  line-height: 1;
  text-align: center;
}

.resource-group[open] .resource-group-action::after {
  content: "−";
}

.resource-list-nested {
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.32);
}

.resource-list li + li {
  border-top: 1px solid var(--line);
}

.resource-list a {
  display: flex;
  justify-content: space-between;
  gap: 1.25rem;
  align-items: center;
  padding: 1rem 1.2rem;
  color: var(--ink);
  text-decoration: none;
  transition: background 150ms ease, padding-left 150ms ease;
}

.resource-list a:hover {
  padding-left: 1.45rem;
  background: rgba(30, 94, 170, 0.07);
}

.resource-list strong,
.resource-list small {
  display: block;
}

.resource-pending {
  padding: 1rem 1.2rem;
  color: var(--ink-soft);
}

.resource-list strong {
  font-size: 0.92rem;
  line-height: 1.35;
}

.resource-list small {
  margin-top: 0.15rem;
  color: var(--ink-soft);
  font-size: 0.76rem;
  line-height: 1.4;
}

.file-type {
  flex: 0 0 auto;
  color: var(--accent);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.cv-hero {
  padding-bottom: 3.5rem;
}

.cv-hero h1 {
  max-width: 12ch;
}

.profile-strip {
  display: grid;
  grid-template-columns: 1.1fr 1fr 1.4fr 1.3fr;
  gap: 1px;
  margin: clamp(2.5rem, 5vw, 4rem) 0 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.profile-strip div {
  min-width: 0;
  padding: 1rem;
  background: var(--paper-raised);
}

.profile-strip dt {
  margin-bottom: 0.25rem;
  color: var(--ink-soft);
  font-size: 0.68rem;
  font-weight: 750;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.profile-strip dd {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.cv-layout {
  grid-template-columns: 200px minmax(0, 1fr);
}

.timeline {
  border-top: 1px solid var(--line-strong);
}

.timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 13rem;
  padding: 1.8rem 0 1.8rem 1.55rem;
  border-bottom: 1px solid var(--line);
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 2.25rem;
  width: 0.5rem;
  height: 0.5rem;
  border: 2px solid var(--accent);
  border-radius: 50%;
  background: var(--paper);
}

.timeline-item h3 {
  grid-column: 1;
  margin: 0;
  font-family: var(--serif);
  font-size: 1.26rem;
  font-weight: 600;
  line-height: 1.35;
}

.timeline-item .date {
  grid-column: 2;
  grid-row: 1;
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.78rem;
  font-weight: 700;
  text-align: right;
}

.timeline-item .institution {
  grid-column: 1 / -1;
  margin: 0.25rem 0 0;
  color: var(--blue-dark);
  font-size: 0.9rem;
  font-style: italic;
}

.timeline-item ul {
  grid-column: 1 / -1;
  margin: 0.7rem 0 0;
  padding-left: 1.15rem;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.timeline-item li + li {
  margin-top: 0.32rem;
}

.publication-list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: publication 11;
}

.publication-list > li {
  position: relative;
  counter-increment: publication -1;
  padding: 1.6rem 0 1.7rem 3.2rem;
  border-top: 1px solid var(--line);
}

.publication-list > li::before {
  content: counter(publication, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1.75rem;
  color: var(--accent);
  font-family: var(--serif);
  font-size: 1.1rem;
  font-weight: 700;
}

.publication p {
  margin: 0;
}

.publication > a {
  display: inline-block;
  margin-top: 0.55rem;
  font-size: 0.82rem;
  font-weight: 700;
}

.metrics {
  margin-top: 0.8rem;
  color: var(--ink-soft);
  font-size: 0.8rem;
}

.metrics summary {
  width: fit-content;
  cursor: pointer;
  color: var(--ink-soft);
  font-weight: 700;
}

.metrics p {
  max-width: 70rem;
  margin-top: 0.7rem;
  padding: 0.75rem 1rem;
  border-left: 2px solid var(--blue);
  background: rgba(30, 94, 170, 0.06);
}

.subsection {
  margin-top: 3.5rem;
}

.subsection h3,
.subheading {
  margin: 0 0 1rem;
  font-family: var(--serif);
  font-size: 1.65rem;
  font-weight: 500;
}

.long-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-strong);
}

.long-list li {
  position: relative;
  padding: 1.1rem 0 1.1rem 1.35rem;
  border-bottom: 1px solid var(--line);
}

.long-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.75rem;
  width: 0.34rem;
  height: 0.34rem;
  border-radius: 50%;
  background: var(--accent);
}

.project-list li {
  padding-block: 1.45rem;
}

.communication-list li {
  padding-block: 0.9rem;
}

@media (max-width: 860px) {
  .home-hero {
    grid-template-columns: 1fr;
    gap: 2.5rem;
    min-height: auto;
  }

  .portrait-frame {
    width: min(100%, 650px);
    aspect-ratio: 3 / 2;
  }

  .portrait-frame img {
    object-position: 50% 16%;
  }

  h1 {
    max-width: 12ch;
    font-size: clamp(2.8rem, 9.5vw, 4.2rem);
  }

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

  .content-layout,
  .cv-layout {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .section-index {
    position: static;
    flex-direction: row;
    gap: 0.35rem 1.25rem;
    overflow-x: auto;
    padding-bottom: 0.65rem;
    scrollbar-width: thin;
  }

  .section-index p {
    display: none;
  }

  .section-index a {
    flex: 0 0 auto;
  }

  .profile-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .page-shell,
  .nav-shell {
    width: min(100% - 2rem, 1120px);
  }

  .nav-shell {
    min-height: 68px;
    align-items: center;
    gap: 0.65rem;
  }

  .site-name > span:last-child {
    display: none;
  }

  .main-nav {
    gap: 0;
  }

  .main-nav a {
    padding-inline: 0.55rem;
    font-size: 0.88rem;
  }

  .main-nav a::after {
    left: 0.55rem;
    right: 0.55rem;
  }

  .home-hero {
    padding-block: 1.5rem 3.5rem;
  }

  h1 {
    font-size: clamp(2.7rem, 13vw, 3.7rem);
  }

  .contact-list {
    grid-template-columns: 1fr;
    gap: 0.9rem;
  }

  .home-links {
    padding-bottom: 3rem;
  }

  .feature-link {
    grid-template-columns: auto 1fr;
    min-height: 0;
  }

  .feature-link .arrow {
    display: none;
  }

  .site-footer .page-shell {
    flex-direction: column;
    gap: 0.25rem;
  }

  .page-hero {
    padding-block: 3.25rem 2.75rem;
  }

  .page-hero h1 {
    font-size: clamp(2.7rem, 13vw, 3.8rem);
  }

  .content-layout {
    padding-block: 2rem 4.5rem;
  }

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

  .section-heading {
    align-items: flex-start;
    gap: 0.7rem;
  }

  .profile-strip {
    grid-template-columns: 1fr;
  }

  .timeline-item {
    display: block;
  }

  .timeline-item .date {
    margin-bottom: 0.45rem;
    text-align: left;
  }

  .publication-list > li {
    padding-left: 2.5rem;
  }
}

@media print {
  body {
    background: #fff;
    color: #111;
    font-size: 10pt;
  }

  .site-header,
  .site-footer,
  .section-index,
  .skip-link {
    display: none;
  }

  .page-shell {
    width: 100%;
  }

  .page-hero {
    padding: 0 0 1.5rem;
  }

  .page-hero h1 {
    font-size: 36pt;
  }

  .content-layout,
  .cv-layout {
    display: block;
    padding: 1.5rem 0 0;
  }

  .cv-section + .cv-section {
    margin-top: 3rem;
  }

  .timeline-item,
  .publication-list > li,
  .long-list li {
    break-inside: avoid;
  }

  .metrics[open] p,
  .metrics p {
    background: transparent;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}