:root {
  --bg: #fff;
  --surface: #f7f9f8;
  --text: #253331;
  --muted: #64716e;
  --accent: #196c5f;
  --accent-soft: #edf4f1;
  --line: #e1e7e4;
  --sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  --heading-page: 34px;
  --heading-section: 25px;
  --heading-item: 19px;
  --text-body: 18px;
  --text-secondary: 16px;
  --text-meta: 15px;
  --text-small: 14px;
  --page-gutter: 30px;
  color-scheme: light;
}

:root[data-theme='dark'] {
  --bg: #18201e;
  --surface: #202b27;
  --text: #e4ebe7;
  --muted: #a7b5ad;
  --accent: #91ccb7;
  --accent-soft: #293e34;
  --line: #37433d;
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: var(--text-body) / 1.75 var(--sans);
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--accent-soft);
  color: var(--accent);
}

a {
  color: var(--accent);
  text-decoration: none;
  text-underline-offset: 3px;
}

a:hover {
  text-decoration: underline;
}

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

p {
  margin: 0 0 16px;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.4;
  font-weight: 600;
}

h1 {
  font-size: var(--heading-page);
  letter-spacing: -0.035em;
}

h2 {
  font-size: var(--heading-section);
  letter-spacing: -0.02em;
}

h3 {
  font-size: var(--heading-item);
}

strong {
  font-weight: 600;
}

[hidden] {
  display: none !important;
}

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

.skip-link {
  position: fixed;
  top: -100px;
  left: 16px;
  padding: 10px 20px;
  background: var(--bg);
  z-index: 100;
}

.skip-link:focus {
  top: 12px;
}

/* Layout */

.site-header {
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 10;
}

.header-inner {
  max-width: 1040px;
  min-height: 72px;
  padding: 0 var(--page-gutter);
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.wordmark {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-size: var(--text-secondary);
  font-weight: 600;
}

.wordmark:hover {
  text-decoration: none;
}

.wordmark-symbol {
  width: 26px;
  height: 18px;
  flex-shrink: 0;
  background-color: var(--accent);
  mask: url('favicon.svg') center / contain no-repeat;
}

nav {
  display: flex;
  align-items: center;
  gap: 25px;
}

nav > a {
  position: relative;
  padding: 24px 0;
  color: var(--muted);
  font-size: var(--text-secondary);
}

nav > a:hover,
nav > a[aria-current] {
  color: var(--accent);
  text-decoration: none;
}

nav > a[aria-current]::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
}

.theme-toggle {
  display: grid;
  place-items: center;
  border: 0;
  background: none;
  color: var(--text);
  padding: 7px;
  border-radius: 4px;
}

.theme-toggle:hover {
  background: var(--accent-soft);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
}

.sun {
  display: none;
}

[data-theme='dark'] .sun {
  display: block;
}

[data-theme='dark'] .moon {
  display: none;
}

.site-main {
  max-width: 1040px;
  margin: auto;
  padding: 0 var(--page-gutter) 55px;
}

.page-heading {
  padding: 48px 0 32px;
}

.page-heading h1 {
  margin-bottom: 12px;
}

.page-heading > p {
  color: var(--muted);
  margin-bottom: 12px;
}

.site-footer {
  flex-wrap: wrap;
  width: calc(100% - 2 * var(--page-gutter));
  max-width: 980px;
  margin: auto;
  padding: 24px 0 30px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  font-size: var(--text-meta);
  color: var(--muted);
}

.footer-credit {
  margin: 0;
  font-size: var(--text-small);
}

.footer-credit a,
.footer-links a {
  color: inherit;
}

.footer-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

/* Home */

.intro {
  display: grid;
  grid-template-columns: 225px minmax(0, 1fr);
  gap: 65px;
  padding: 48px 0 38px;
  align-items: start;
}

.intro h1 {
  margin-bottom: 22px;
}

.bio p:last-child {
  margin-bottom: 24px;
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 22px;
  font-size: var(--text-meta);
}

.profile-note {
  padding-top: 5px;
  font-size: var(--text-meta);
  color: var(--muted);
}

.profile-photo {
  display: block;
  width: 225px;
  height: 260px;
  object-fit: cover;
  object-position: 50% 48%;
  border-radius: 3px;
  margin-bottom: 12px;
}

.profile-note p {
  line-height: 1.7;
  margin-bottom: 10px;
}

.profile-note .profile-name {
  font-size: 24px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--text);
  margin-bottom: 12px;
}

.profile-name span {
  font-weight: 400;
  white-space: nowrap;
}

.profile-role {
  color: var(--text);
}

.aside-email {
  overflow-wrap: anywhere;
}

.section-heading {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 23px;
}

.text-link {
  font-size: var(--text-meta);
  white-space: nowrap;
}

.research-section,
.highlights-section {
  padding: 28px 0 32px;
  border-top: 1px solid var(--line);
}

.research-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 32px;
}

.research-grid h3 {
  margin-bottom: 7px;
}

.research-grid p {
  margin: 0;
  font-size: var(--text-secondary);
  color: var(--muted);
}

.highlights > div {
  display: grid;
  grid-template-columns: 80px minmax(0, 1fr);
  gap: 22px;
  margin-bottom: 12px;
}

.highlights time {
  color: var(--muted);
  font-size: var(--text-meta);
  padding-top: 2px;
  font-variant-numeric: tabular-nums;
}

.highlights p {
  margin: 0;
}

/* Publications */

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

.publication {
  display: grid;
  grid-template-columns: 65px minmax(0, 1fr);
  gap: 22px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.publication-year {
  color: var(--muted);
  font-size: var(--text-secondary);
  padding-top: 3px;
}

.publication-year > span {
  display: block;
  font-size: var(--text-small);
  margin-top: 4px;
}

.publication--illustrated {
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 32px;
  padding: 28px 0;
}

.publication-figure {
  display: block;
  aspect-ratio: 4 / 3;
  padding: 10px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 3px;
}

.publication-figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.publication-title {
  font-size: var(--heading-item);
  letter-spacing: normal;
  line-height: 1.5;
  margin-bottom: 7px;
}

.publication-title a {
  color: var(--text);
}

.publication-title a:hover {
  color: var(--accent);
}

.publication p {
  margin-bottom: 6px;
}

.authors {
  line-height: 1.65;
  color: var(--muted);
  font-size: var(--text-meta);
}

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

.venue {
  font-size: var(--text-meta);
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.paper-summary {
  line-height: 1.7;
  font-size: var(--text-secondary);
  color: var(--muted);
}

.paper-links {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 17px;
  padding-top: 4px;
  font-size: var(--text-meta);
}

.award {
  font-size: var(--text-small);
  background: var(--accent-soft);
  padding: 1px 6px;
  border-radius: 3px;
}

.publication-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  margin-bottom: 17px;
}

.filter-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 3px;
}

.filter-buttons button {
  background: none;
  color: var(--muted);
  border: 1px solid transparent;
  border-radius: 4px;
  padding: 6px 12px;
  font-size: var(--text-meta);
  white-space: nowrap;
}

.filter-buttons button[aria-pressed='true'] {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: var(--line);
}

.filter-buttons button:hover {
  color: var(--accent);
}

.filter-buttons span {
  font-size: var(--text-small);
  padding-left: 4px;
}

.search-box {
  display: flex;
  align-items: center;
  gap: 9px;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 7px 11px;
  width: 270px;
}

.search-box svg {
  width: 16px;
  height: 16px;
  flex: none;
  color: var(--muted);
}

.search-box input {
  border: 0;
  background: transparent;
  color: var(--text);
  width: 100%;
  min-width: 0;
  font-size: var(--text-secondary);
}

.search-box input:focus {
  outline: 0;
}

.search-box:focus-within {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.search-box input::placeholder {
  color: var(--muted);
}

.result-count {
  color: var(--muted);
  font-size: var(--text-meta);
  margin-bottom: 14px;
}

.empty-state {
  padding: 45px 15px;
  text-align: center;
}

.empty-state h2 {
  margin-bottom: 10px;
}

.empty-state p {
  color: var(--muted);
  font-size: var(--text-secondary);
}

.empty-state button {
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--accent);
  padding: 7px 14px;
  border-radius: 4px;
  font-size: var(--text-meta);
}

@media (max-width: 800px) {
  :root {
    --page-gutter: 24px;
  }

  .intro {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: 32px;
  }

  .profile-photo {
    width: 190px;
    height: 230px;
  }

  nav {
    gap: 20px;
  }

  .publication--illustrated {
    grid-template-columns: 210px minmax(0, 1fr);
    gap: 24px;
  }

  .publication-controls {
    align-items: stretch;
    flex-direction: column;
  }

  .search-box {
    width: 100%;
  }
}

@media (max-width: 600px) {
  :root {
    --heading-page: 32px;
    --heading-section: 24px;
    --heading-item: 18px;
    --text-body: 17px;
    --page-gutter: 22px;
  }

  .header-inner {
    min-height: 64px;
    gap: 10px;
  }

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

  nav {
    gap: 16px;
  }

  nav > a {
    font-size: var(--text-meta);
    padding: 20px 0;
  }

  .theme-toggle {
    padding: 5px;
    margin-left: -4px;
  }

  .theme-toggle svg {
    width: 16px;
    height: 16px;
  }

  .site-main {
    padding-bottom: 36px;
  }

  .intro {
    grid-template-columns: 1fr;
    gap: 27px;
    padding: 30px 0;
  }

  .contact-links {
    gap: 18px;
  }

  .profile-note {
    display: grid;
    grid-template-columns: 130px minmax(0, 1fr);
    column-gap: 22px;
    padding: 0 0 24px;
    border-bottom: 1px solid var(--line);
  }

  .profile-photo {
    width: 130px;
    height: 156px;
    margin-bottom: 9px;
  }

  .profile-note .profile-name {
    font-size: 20px;
    margin-bottom: 0;
  }

  .profile-note p {
    margin-bottom: 7px;
  }

  .aside-email {
    font-size: var(--text-small);
  }

  .section-heading {
    gap: 10px;
    margin-bottom: 20px;
  }

  .research-section,
  .highlights-section {
    padding: 25px 0;
  }

  .research-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .research-grid h3 {
    margin-bottom: 3px;
  }

  .highlights > div {
    grid-template-columns: 72px minmax(0, 1fr);
    gap: 14px;
    margin-bottom: 14px;
  }

  .publication {
    grid-template-columns: 1fr;
    gap: 5px;
    padding: 21px 0;
  }

  .publication-figure {
    width: min(100%, 320px);
    margin-bottom: 12px;
  }

  .publication-year {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: var(--text-meta);
  }

  .publication-year > span {
    margin-top: 0;
  }

  .page-heading {
    padding: 30px 0 24px;
  }

  .filter-buttons button {
    padding: 6px 10px;
  }

  .site-footer {
    padding: 22px 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }

  .footer-links {
    gap: 10px 18px;
  }
}

@media (max-width: 360px) {
  .profile-note {
    grid-template-columns: 108px minmax(0, 1fr);
    column-gap: 16px;
  }

  .profile-photo {
    width: 108px;
    height: 138px;
  }

  .filter-buttons button {
    padding-left: 8px;
    padding-right: 8px;
  }
}

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

@media print {
  .site-header,
  .publication-controls,
  .site-footer {
    display: none;
  }

  :root,
  :root[data-theme='dark'] {
    --bg: #fff;
    --text: #000;
    --muted: #444;
    --accent: #164e43;
    --line: #ccc;
  }

  .site-main {
    max-width: none;
    padding: 0;
  }

  .intro {
    padding-top: 10px;
  }

  .publication {
    break-inside: avoid;
  }

  .publication[hidden] {
    display: grid !important;
  }

  .page-heading {
    padding-top: 0;
  }

  a {
    color: inherit;
  }
}