:root {
  --paper: #f7f5f0;
  --paper-deep: #eeebe3;
  --surface: #fffefa;
  --ink: #1c2530;
  --muted: #5e6670;
  --line: #d8d3c8;
  --accent: #7a1d32;
  --accent-dark: #541222;
  --accent-soft: #f2e7e9;
  --accent-rgb: 122, 29, 50;
  --on-accent: #fff;
  --header-bg: rgba(247, 245, 240, 0.94);
  --header-border: rgba(216, 211, 200, 0.9);
  --max-width: 1120px;
  --serif: Georgia, "Times New Roman", Times, serif;
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

html {
  color-scheme: light;
}

html[data-theme="dark"] {
  --paper: #111315;
  --paper-deep: #171a1e;
  --surface: #1c2024;
  --ink: #edf0f2;
  --muted: #aeb6bf;
  --line: #343b43;
  --accent: #e6a3b2;
  --accent-dark: #ffd0da;
  --accent-soft: #2b1b21;
  --accent-rgb: 230, 163, 178;
  --on-accent: #241017;
  --header-bg: rgba(17, 19, 21, 0.94);
  --header-border: rgba(52, 59, 67, 0.92);
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(90deg, transparent 0, transparent calc(50% - 1px), rgba(var(--accent-rgb), 0.035) 50%, transparent calc(50% + 1px)),
    var(--paper);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.72;
  text-rendering: optimizeLegibility;
}

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

.icon-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

a {
  color: var(--accent);
  text-decoration-color: rgba(var(--accent-rgb), 0.42);
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--accent-dark);
  text-decoration-color: currentColor;
}

a:focus-visible {
  outline: 3px solid rgba(var(--accent-rgb), 0.32);
  outline-offset: 4px;
  border-radius: 2px;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  padding: 0.55rem 0.8rem;
  color: var(--on-accent);
  background: var(--accent);
  transform: translateY(-160%);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--header-bg);
  backdrop-filter: blur(16px);
}

.header-inner {
  width: min(calc(100% - 3rem), var(--max-width));
  min-height: 70px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.site-name {
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.23rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-decoration: none;
  white-space: nowrap;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1.15rem;
  min-width: 0;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(0.9rem, 2vw, 1.7rem);
}

.site-nav a {
  color: var(--muted);
  font-size: 0.79rem;
  font-weight: 700;
  letter-spacing: 0.075em;
  text-decoration: none;
  text-transform: uppercase;
}

.site-nav a:hover {
  color: var(--accent);
}

.site-nav .nav-cv {
  padding: 0.45rem 0.7rem;
  border: 1px solid var(--accent);
  color: var(--accent);
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.42rem;
  min-height: 34px;
  padding: 0.35rem 0.62rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: var(--surface);
  font: inherit;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  white-space: nowrap;
}

.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.theme-toggle:focus-visible {
  outline: 3px solid rgba(var(--accent-rgb), 0.32);
  outline-offset: 3px;
}

.theme-icon {
  width: 1em;
  font-size: 1rem;
  font-weight: 400;
  line-height: 1;
  text-align: center;
}

.intro,
.section {
  width: min(calc(100% - 3rem), var(--max-width));
  margin: 0 auto;
}

.intro {
  display: grid;
  grid-template-columns: minmax(240px, 0.7fr) minmax(0, 1.8fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  padding: clamp(2.75rem, 4vw, 4rem) 0 clamp(1.5rem, 2.5vw, 2.25rem);
}

.profile-card {
  align-self: start;
  position: sticky;
  top: 118px;
}

.portrait {
  width: min(100%, 250px);
  aspect-ratio: 1;
  margin-bottom: 1.4rem;
  border-radius: 2px;
  box-shadow: 14px 14px 0 var(--paper-deep), 15px 15px 0 var(--line);
  object-fit: cover;
}

.section-kicker {
  margin: 0 0 0.25rem;
  color: var(--accent);
  font-size: 0.73rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  line-height: 1.4;
  text-transform: uppercase;
}

.profile-card h1,
.section-heading h2 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1.06;
}

.profile-card h1 {
  font-size: clamp(2.25rem, 5vw, 3.2rem);
}

.role {
  margin: 0.65rem 0 0;
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.07rem;
}

.institution {
  margin: 0.15rem 0 0;
  color: var(--muted);
  font-size: 0.93rem;
}

.profile-links {
  display: flex;
  flex-wrap: nowrap;
  gap: 0.25rem;
  margin-top: 1.1rem;
}

.profile-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  flex: 0 0 30px;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--muted);
  text-decoration: none;
}

.profile-links a:hover {
  border-color: var(--accent);
  color: var(--on-accent);
  background: var(--accent);
}

.social-icon {
  display: block;
  width: 15px;
  height: 15px;
}

.section-heading {
  display: grid;
  grid-template-columns: 10rem minmax(0, 1fr);
  align-items: end;
  gap: 1rem;
  padding-bottom: 0.8rem;
  margin-bottom: 1.4rem;
  border-bottom: 1px solid var(--line);
}

.section-heading h2 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
}

.prose {
  font-family: var(--serif);
  font-size: clamp(1.05rem, 1.4vw, 1.17rem);
  line-height: 1.8;
}

.prose p:first-child {
  margin-top: 0;
}

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

.academic-details {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  gap: clamp(1.5rem, 3vw, 2.5rem);
  padding-top: 1.5rem;
}

.academic-details h3 {
  margin: 0 0 0.8rem;
  font-family: var(--serif);
  font-size: 1.3rem;
  font-weight: 500;
}

.interest-list,
.education-list {
  padding: 0;
  margin: 0;
  list-style: none;
}

.interest-list li {
  position: relative;
  padding: 0.27rem 0 0.27rem 1rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.interest-list li::before {
  content: "";
  position: absolute;
  top: 0.91rem;
  left: 0;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
}

.education-list {
  display: grid;
  gap: 1.25rem;
}

.education-list li {
  padding-left: 1rem;
  border-left: 1px solid var(--line);
}

.education-list p {
  margin: 0;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.55;
}

.education-list .degree {
  margin-bottom: 0.15rem;
  color: var(--ink);
  font-family: var(--serif);
  font-size: 0.96rem;
}

.section {
  padding: clamp(1.5rem, 2.5vw, 2.25rem) 0;
  scroll-margin-top: 70px;
}

.updates-group + .updates-group {
  margin-top: clamp(2.25rem, 4vw, 3.25rem);
}

.updates-subtitle {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0 0 0.9rem;
  color: var(--ink);
  font-family: var(--serif);
  font-size: clamp(1.35rem, 2.4vw, 1.7rem);
  font-weight: 500;
  letter-spacing: -0.015em;
}

.service-group {
  padding: clamp(1.1rem, 2vw, 1.6rem);
  background: var(--surface);
}

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

.timeline-scroll {
  max-height: 24rem;
  padding-right: 1rem;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-color: var(--accent) var(--paper-deep);
  scrollbar-gutter: stable;
  scrollbar-width: thin;
}

.timeline-scroll:focus-visible {
  outline: 3px solid rgba(var(--accent-rgb), 0.32);
  outline-offset: 5px;
}

.timeline-scroll::-webkit-scrollbar {
  width: 8px;
}

.timeline-scroll::-webkit-scrollbar-track {
  background: var(--paper-deep);
}

.timeline-scroll::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: var(--accent);
}

.timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: 10rem minmax(0, 1fr);
  gap: 0;
  padding: 0.72rem 0;
}

.timeline-item:first-child {
  padding-top: 0;
}

.timeline time {
  color: var(--accent);
  font-family: var(--serif);
  font-size: 0.94rem;
  font-weight: 700;
  white-space: nowrap;
}

.timeline p {
  margin: 0;
  padding-left: 0;
  color: var(--muted);
}

.section-intro {
  margin: -0.3rem 0 1.5rem 11rem;
  color: var(--muted);
  font-family: var(--serif);
  font-size: 1.02rem;
}

.publication {
  display: grid;
  grid-template-columns: 17rem minmax(0, 1fr);
  gap: clamp(1.5rem, 3vw, 3rem);
  padding: clamp(1.75rem, 3vw, 2.5rem) 0;
}

.publication-figure {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 160px;
  padding: 0.9rem;
  margin: 0;
  border: 1px solid var(--line);
  background: var(--surface);
}

.publication-figure img {
  width: 100%;
  max-height: 190px;
  object-fit: contain;
  mix-blend-mode: multiply;
}

html[data-theme="dark"] .publication-figure img {
  mix-blend-mode: normal;
}

.publication-content {
  align-self: center;
}

.publication-meta {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0 0 0.55rem;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.publication-meta span {
  color: var(--accent);
}

.publication-meta span::after {
  content: "·";
  margin-left: 0.55rem;
  color: var(--line);
}

.publication h3 {
  max-width: 760px;
  margin: 0 0 0.65rem;
  font-family: var(--serif);
  font-size: clamp(1.32rem, 2.2vw, 1.72rem);
  font-weight: 500;
  letter-spacing: -0.018em;
  line-height: 1.28;
}

.authors,
.venue,
.publication-note {
  max-width: 760px;
  margin: 0.25rem 0;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.62;
}

.authors strong {
  color: var(--ink);
}

.publication-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 0.8rem;
}

.publication-links a {
  padding: 0.32rem 0.62rem;
  border: 1px solid var(--line);
  color: var(--accent);
  background: var(--surface);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-decoration: none;
  text-transform: uppercase;
}

.publication-links a:hover {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--on-accent);
}

.contact-section {
  padding-bottom: clamp(2rem, 3vw, 2.75rem);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.45fr 0.55fr;
  gap: 0.75rem;
  margin: 0;
  background: transparent;
  font-style: normal;
}

.contact-item {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  min-height: 120px;
  padding: 1.1rem;
  color: var(--ink);
  background: var(--surface);
  text-decoration: none;
}

a.contact-item:hover {
  color: var(--accent);
  background: var(--accent-soft);
}

.contact-label {
  color: var(--accent);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.site-footer {
  background: var(--paper-deep);
}

.footer-inner {
  width: min(calc(100% - 3rem), var(--max-width));
  margin: 0 auto;
  display: grid;
  grid-template-columns: auto minmax(180px, 1fr) auto;
  align-items: center;
  gap: 0.75rem 1rem;
  padding: 1.4rem 0;
  color: var(--muted);
  font-size: 0.76rem;
}

.visitor-count {
  margin: 0;
}

.flag-counter img {
  max-width: 260px;
}

.back-to-top {
  grid-column: 3;
  grid-row: 1;
  color: var(--accent);
  font-weight: 800;
  letter-spacing: 0.06em;
  text-decoration: none;
  text-transform: uppercase;
}

@media (max-width: 820px) {
  .header-inner {
    width: min(calc(100% - 2rem), var(--max-width));
    min-height: auto;
    padding: 0.8rem 0;
    align-items: flex-start;
    flex-direction: column;
    gap: 0.65rem;
  }

  .site-nav {
    flex: 1;
    width: auto;
    padding-bottom: 0.2rem;
    overflow-x: auto;
  }

  .header-actions {
    width: 100%;
  }

  .site-nav a {
    white-space: nowrap;
  }

  .intro {
    grid-template-columns: 1fr;
    gap: 4.5rem;
  }

  .profile-card {
    position: static;
    display: grid;
    grid-template-columns: minmax(150px, 220px) 1fr;
    gap: 0 2rem;
    align-items: end;
  }

  .portrait {
    grid-row: span 2;
    margin-bottom: 0;
  }

  .profile-links {
    align-self: start;
  }

  .section-heading {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }

  .timeline-item {
    grid-template-columns: 8rem minmax(0, 1fr);
  }

  .section-intro {
    margin-left: 0;
  }

  .publication {
    grid-template-columns: minmax(180px, 0.65fr) minmax(0, 1.35fr);
    gap: 1.5rem;
  }

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

  .contact-item:last-child {
    grid-column: 1 / -1;
    min-height: auto;
  }
}

@media (max-width: 560px) {
  body {
    line-height: 1.65;
  }

  .site-name {
    display: none;
  }

  .site-nav {
    gap: 1.05rem;
  }

  .site-nav a {
    font-size: 0.7rem;
  }

  .site-nav .nav-cv {
    padding: 0;
    border: 0;
  }

  .header-actions {
    gap: 0.65rem;
  }

  .theme-toggle {
    width: 34px;
    flex: 0 0 34px;
    padding: 0;
  }

  .theme-text {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }

  .intro,
  .section {
    width: min(calc(100% - 2rem), var(--max-width));
  }

  .intro {
    padding-top: 2.5rem;
  }

  .profile-card {
    display: block;
  }

  .portrait {
    width: 180px;
    margin-bottom: 1.5rem;
  }

  .academic-details {
    grid-template-columns: 1fr;
  }

  .timeline-item {
    grid-template-columns: 1fr;
    gap: 0.2rem;
    padding: 0.8rem 0;
  }

  .timeline p {
    padding-left: 0;
  }

  .timeline-scroll {
    max-height: 22rem;
    padding-right: 0.7rem;
  }

  .service-group {
    padding: 1.1rem;
  }

  .publication {
    grid-template-columns: 1fr;
    gap: 1.1rem;
  }

  .publication-figure {
    min-height: 160px;
  }

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

  .contact-item,
  .contact-item:last-child {
    grid-column: auto;
    min-height: auto;
  }

  .footer-inner {
    width: min(calc(100% - 2rem), var(--max-width));
    grid-template-columns: 1fr;
    align-items: start;
  }

  .back-to-top {
    grid-column: auto;
    grid-row: auto;
  }
}

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

@media print {
  :root,
  html[data-theme="dark"] {
    --paper: #fff;
    --paper-deep: #f2f2f2;
    --surface: #fff;
    --ink: #000;
    --muted: #333;
    --line: #bbb;
    --accent: #551225;
    --accent-dark: #340b16;
    --accent-soft: #f5edf0;
  }

  .site-header,
  .profile-links,
  .publication-links,
  .site-footer {
    display: none;
  }

  body {
    background: #fff;
    color: #000;
    font-size: 11pt;
  }

  .intro,
  .section {
    width: 100%;
    padding: 2rem 0;
  }

  .profile-card {
    position: static;
  }

  .publication {
    break-inside: avoid;
  }

  .timeline-scroll {
    max-height: none;
    padding-right: 0;
    overflow: visible;
  }
}