:root {
  --bg: #f7f8fb;
  --surface: #ffffff;
  --surface-soft: #f1f5f8;
  --text: #1f2933;
  --muted: #637083;
  --line: #dce3ea;
  --accent: #0f766e;
  --accent-strong: #0b5f59;
  --link: #2563eb;
  --warm: #b45309;
  --success: #15803d;
  --shadow: 0 18px 42px rgba(31, 41, 51, 0.09);
}

html[data-theme="dark"] {
  --bg: #151719;
  --surface: #202326;
  --surface-soft: #262b2f;
  --text: #eef2f4;
  --muted: #a8b2bd;
  --line: #343b42;
  --accent: #5eead4;
  --accent-strong: #99f6e4;
  --link: #93c5fd;
  --warm: #fbbf24;
  --success: #86efac;
  --shadow: 0 18px 42px rgba(0, 0, 0, 0.3);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.7;
}

body,
button {
  letter-spacing: 0;
}

a {
  color: var(--link);
  text-decoration: none;
  text-underline-offset: 0.2em;
}

a:hover,
a:focus-visible {
  color: var(--accent-strong);
  text-decoration: underline;
}

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

strong {
  font-weight: 700;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.header-inner {
  width: min(1120px, calc(100% - 40px));
  min-height: 70px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}

.brand {
  flex: 0 0 auto;
  color: var(--text);
  font-weight: 800;
  font-size: 1rem;
}

.main-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  flex: 1 1 auto;
}

.main-nav a {
  color: var(--muted);
  font-weight: 600;
  font-size: 0.92rem;
}

.main-nav a:hover,
.main-nav a:focus-visible {
  color: var(--accent-strong);
}

.theme-control {
  flex: 0 0 auto;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-soft);
}

.theme-control button {
  min-width: 58px;
  border: 0;
  border-right: 1px solid var(--line);
  padding: 8px 10px;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
}

.theme-control button:last-child {
  border-right: 0;
}

.theme-control button.active {
  background: var(--accent);
  color: #ffffff;
}

html[data-theme="dark"] .theme-control button.active {
  color: #10201d;
}

.page-shell {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 54px 0 64px;
}

.profile-layout {
  display: grid;
  grid-template-columns: 340px minmax(0, 1fr);
  gap: 48px;
  align-items: start;
}

.profile-panel {
  position: sticky;
  top: 104px;
  padding: 30px 24px;
  text-align: center;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.portrait {
  width: 184px;
  height: 184px;
  margin: 0 auto 22px;
  object-fit: cover;
  border-radius: 999px;
  border: 5px solid var(--surface-soft);
}

.profile-panel h1 {
  margin: 0;
  color: var(--text);
  font-size: 1.7rem;
  line-height: 1.18;
}

.role {
  margin: 12px 0 0;
  color: var(--accent-strong);
  font-weight: 800;
}

.affiliation {
  margin: 8px 0 22px;
  color: var(--muted);
  font-size: 0.96rem;
  line-height: 1.55;
}

.profile-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}

.profile-links a,
.paper-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 7px 11px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-soft);
  color: var(--text);
  font-size: 0.86rem;
  font-weight: 700;
}

.profile-links a:hover,
.profile-links a:focus-visible,
.paper-links a:hover,
.paper-links a:focus-visible {
  border-color: color-mix(in srgb, var(--accent) 70%, var(--line));
  background: color-mix(in srgb, var(--accent) 12%, var(--surface));
  color: var(--accent-strong);
  text-decoration: none;
}

.bio-content {
  padding-top: 6px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent-strong);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.bio-content h2,
.section-heading h2 {
  margin: 0;
  color: var(--text);
  font-size: 2.35rem;
  line-height: 1.15;
}

.bio-content p {
  max-width: 760px;
  margin: 18px 0 0;
  color: var(--text);
}

.bio-grid,
.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 30px;
}

.info-block,
.detail-panel {
  padding: 22px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.info-block h3,
.detail-panel h3 {
  margin: 0 0 12px;
  font-size: 1rem;
}

.info-block ul,
.detail-panel ul {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
}

.info-block li,
.detail-panel li {
  margin: 8px 0;
}

.content-section {
  scroll-margin-top: 96px;
  margin-top: 66px;
}

.section-heading {
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.news-list {
  display: grid;
  gap: 12px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.news-list li {
  display: grid;
  grid-template-columns: 94px minmax(0, 1fr);
  gap: 18px;
  padding: 16px 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  border-radius: 8px;
}

.news-list time {
  color: var(--warm);
  font-weight: 800;
}

.news-list p {
  margin: 0;
}

.status {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 1px 8px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.status.accepted {
  color: var(--success);
  background: color-mix(in srgb, var(--success) 13%, transparent);
}

.publication-list {
  display: grid;
  gap: 18px;
  margin-top: 26px;
}

.publication {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  gap: 24px;
  align-items: start;
  padding: 22px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  transition: border-color 160ms ease, transform 160ms ease, box-shadow 160ms ease;
}

.publication:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--accent) 45%, var(--line));
  box-shadow: var(--shadow);
}

.publication-media {
  display: grid;
  place-items: center;
  min-height: 138px;
  overflow: hidden;
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.publication-media img {
  width: 100%;
  height: 138px;
  object-fit: contain;
  padding: 10px;
}

.publication-body h3 {
  margin: 0;
  font-size: 1.12rem;
  line-height: 1.38;
}

.publication-body h3 a {
  color: var(--text);
}

.publication-body h3 a:hover,
.publication-body h3 a:focus-visible {
  color: var(--accent-strong);
}

.authors,
.venue,
.publication-body p {
  margin: 8px 0 0;
}

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

.venue {
  color: var(--muted);
  font-weight: 700;
}

.paper-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.publication-body > p:last-child {
  color: var(--muted);
}

.detail-panel.wide {
  margin-top: 24px;
}

.site-footer {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 0 0 34px;
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 980px) {
  .header-inner {
    min-height: auto;
    padding: 16px 0;
    flex-wrap: wrap;
  }

  .brand {
    order: 1;
  }

  .theme-control {
    order: 2;
  }

  .main-nav {
    order: 3;
    flex-basis: 100%;
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .profile-layout {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .profile-panel {
    position: static;
  }

  .bio-content h2,
  .section-heading h2 {
    font-size: 2rem;
  }
}

@media (max-width: 720px) {
  body {
    font-size: 15px;
  }

  .page-shell,
  .header-inner,
  .site-footer {
    width: min(100% - 28px, 1120px);
  }

  .page-shell {
    padding-top: 34px;
  }

  .theme-control {
    width: 100%;
  }

  .theme-control button {
    min-width: 0;
  }

  .main-nav {
    gap: 14px;
  }

  .bio-grid,
  .detail-grid {
    grid-template-columns: 1fr;
  }

  .section-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }

  .news-list li {
    grid-template-columns: 1fr;
    gap: 6px;
  }

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

  .publication-media img {
    height: 180px;
  }
}

@media (max-width: 420px) {
  .profile-panel {
    padding: 24px 18px;
  }

  .portrait {
    width: 156px;
    height: 156px;
  }

  .profile-panel h1 {
    font-size: 1.55rem;
  }

  .bio-content h2,
  .section-heading h2 {
    font-size: 1.72rem;
  }

  .publication,
  .info-block,
  .detail-panel,
  .news-list li {
    padding: 18px;
  }
}