:root {
  --bg: #f7f8fb;
  --paper: #ffffff;
  --ink: #202633;
  --muted: #667085;
  --line: #d9dee8;
  --accent: #2467a7;
  --accent-dark: #164c7c;
  --accent-soft: #e7f0f8;
  --green: #55745f;
  --shadow: 0 18px 45px rgba(34, 45, 65, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(135deg, rgba(36, 103, 167, 0.08), transparent 28rem),
    linear-gradient(315deg, rgba(85, 116, 95, 0.08), transparent 24rem),
    var(--bg);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 17px;
  line-height: 1.65;
}

a {
  color: var(--accent);
  text-decoration: none;
}

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

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 10;
  padding: 0.55rem 0.8rem;
  background: var(--ink);
  color: #fff;
  border-radius: 6px;
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 5;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.top-nav {
  width: min(1120px, calc(100% - 2rem));
  min-height: 58px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.15rem;
  flex-wrap: wrap;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.92rem;
}

.top-nav a {
  color: #3c4658;
  white-space: nowrap;
}

.top-nav .brand {
  margin-right: auto;
  color: #172033;
  font-weight: 700;
}

.top-nav a[aria-current="page"] {
  color: var(--accent-dark);
  font-weight: 700;
}

.layout {
  width: min(1120px, calc(100% - 2rem));
  margin: 2.5rem auto 4rem;
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 3rem;
  align-items: start;
}

.profile-card {
  position: sticky;
  top: 5rem;
  padding: 2rem 1.35rem;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  text-align: center;
}

.portrait {
  width: 168px;
  aspect-ratio: 1;
  margin: 0 auto 1.25rem;
  border-radius: 50%;
  display: block;
  object-fit: cover;
  box-shadow: inset 0 0 0 8px rgba(255, 255, 255, 0.65), 0 12px 30px rgba(36, 54, 79, 0.22);
}

.profile-card h1 {
  margin: 0;
  font-size: 1.65rem;
  line-height: 1.2;
}

.affiliation {
  margin: 0.55rem 0 0;
  color: var(--accent-dark);
  font-size: 0.98rem;
  line-height: 1.45;
}

.role {
  margin: 0.85rem 0 1.2rem;
  color: var(--muted);
  font-size: 0.96rem;
}

.profile-list {
  margin: 0;
  padding: 1rem 0;
  list-style: none;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  text-align: left;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.9rem;
  line-height: 1.45;
}

.profile-list li + li {
  margin-top: 0.7rem;
}

.marker {
  display: block;
  color: var(--muted);
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.profile-actions {
  display: flex;
  gap: 0.55rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 1.2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--accent-dark);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.88rem;
  text-decoration: none;
}

.button.primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.button:hover,
.button:focus-visible {
  text-decoration: none;
  transform: translateY(-1px);
}

.content {
  min-width: 0;
}

.section {
  padding: 0 0 2.2rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--line);
}

.section:first-child {
  padding-top: 0.2rem;
}

.section:last-child {
  border-bottom: 0;
}

.hero-section {
  padding-top: 0.2rem;
}

.eyebrow {
  margin: 0 0 0.35rem;
  color: var(--green);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

h2 {
  margin: 0 0 1rem;
  padding-top: 4.5rem;
  margin-top: -4.5rem;
  color: #172033;
  font-size: 2rem;
  line-height: 1.2;
}

.detail-page h1 {
  margin: 0 0 0.9rem;
  color: #172033;
  font-size: 2.35rem;
  line-height: 1.15;
}

.detail-page h2,
.publication h2 {
  padding-top: 0;
  margin-top: 0;
}

h3 {
  margin: 0 0 0.35rem;
  font-size: 1.08rem;
  line-height: 1.35;
}

p {
  margin: 0 0 1rem;
}

.timeline,
.compact-list {
  margin: 0;
  padding-left: 1.15rem;
}

.timeline li,
.compact-list li {
  margin-bottom: 0.7rem;
}

.timeline time {
  display: inline-block;
  min-width: 4.5rem;
  color: var(--accent-dark);
  font-family: Arial, Helvetica, sans-serif;
  font-weight: 700;
}

.publication-list {
  display: grid;
  gap: 1.05rem;
}

.publication-list.numbered {
  counter-reset: pubs;
}

.publication {
  position: relative;
  padding: 1.15rem 1.2rem 1rem 1.45rem;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  border-radius: 8px;
}

.publication-list.numbered .publication {
  counter-increment: pubs;
  padding: 0.9rem 1rem 0.8rem 2.9rem;
}

.publication-list.numbered .publication::before {
  content: counter(pubs);
  position: absolute;
  left: 0.85rem;
  top: 0.85rem;
  width: 1.32rem;
  height: 1.32rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
}

.publication-link {
  color: var(--ink);
  text-decoration: none;
}

.publication-link:hover,
.publication-link:focus-visible {
  color: var(--ink);
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 12px 28px rgba(34, 45, 65, 0.08);
}

.publication h2 {
  font-size: 1.04rem;
  line-height: 1.32;
}

.publication p {
  margin-bottom: 0.22rem;
  color: #3f4654;
  font-size: 0.94rem;
  line-height: 1.5;
}

.venue {
  display: inline-flex;
  margin-bottom: 0.38rem;
  padding: 0.14rem 0.45rem;
  border-radius: 5px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

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

.activity-grid > div {
  padding: 1rem;
  background: rgba(255, 255, 255, 0.68);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.activity-grid p {
  margin-bottom: 0;
}

.contact-section {
  padding-bottom: 0;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 1.2rem;
}

.tag-list span {
  padding: 0.28rem 0.62rem;
  border: 1px solid rgba(36, 103, 167, 0.18);
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.82rem;
}

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

.module-card {
  display: block;
  min-height: 150px;
  padding: 1.15rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.75);
  color: var(--ink);
  box-shadow: 0 10px 28px rgba(34, 45, 65, 0.05);
}

.module-card:hover,
.module-card:focus-visible {
  color: var(--ink);
  text-decoration: none;
  transform: translateY(-2px);
}

.module-card h3 {
  margin: 0.25rem 0 0.45rem;
  font-size: 1.18rem;
}

.module-card p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.97rem;
}

.module-kicker,
.meta {
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.84rem;
}

.detail-page {
  width: min(900px, calc(100% - 2rem));
  margin: 3rem auto 4rem;
}

.lead {
  color: var(--muted);
  font-size: 1.08rem;
}

.entry {
  margin-bottom: 1.6rem;
  padding: 1.15rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
}

.entry:last-child {
  margin-bottom: 0;
}

.large-list li {
  margin-bottom: 0.95rem;
}

@media (max-width: 880px) {
  .layout {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .profile-card {
    position: static;
  }

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

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

@media (max-width: 560px) {
  body {
    font-size: 16px;
  }

  .layout,
  .top-nav {
    width: min(100% - 1.25rem, 1120px);
  }

  .top-nav {
    justify-content: flex-start;
    overflow-x: auto;
    flex-wrap: nowrap;
    min-height: 52px;
  }

  .layout {
    margin-top: 1.2rem;
  }

  .profile-card {
    padding: 1.45rem 1rem;
  }

  .portrait {
    width: 132px;
  }

  h2 {
    font-size: 1.65rem;
  }

  .timeline time {
    display: block;
    min-width: 0;
  }
}