:root {
  --navy: #17365d;
  --navy-dark: #102844;
  --blue: #245b8f;
  --text: #22262b;
  --muted: #5d6670;
  --line: #d8dde3;
  --soft: #f5f7f9;
  --white: #ffffff;
  --max-width: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--text);
  background: var(--white);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
  line-height: 1.65;
}

img { max-width: 100%; }

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

a:hover,
a:focus { text-decoration: underline; }

.container {
  width: min(var(--max-width), calc(100% - 40px));
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: auto;
}

.skip-link:focus {
  left: 16px;
  top: 10px;
  z-index: 1000;
  padding: 8px 12px;
  background: var(--white);
  border: 2px solid var(--navy);
}

.site-header {
  border-top: 6px solid var(--navy);
  border-bottom: 1px solid var(--line);
  background: var(--white);
}

.header-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  min-height: 94px;
}

.site-name {
  margin: 0;
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 1.65rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--navy-dark);
}

.site-name a { color: inherit; }
.site-name a:hover { text-decoration: none; }

.site-role {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.menu-toggle {
  display: none;
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--navy-dark);
  padding: 8px 12px;
  font: inherit;
  cursor: pointer;
}

.site-nav ul {
  display: flex;
  align-items: center;
  gap: 24px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav a {
  display: inline-block;
  padding: 34px 0 29px;
  border-bottom: 3px solid transparent;
  color: #343a40;
  font-size: 0.95rem;
  font-weight: 600;
}

.site-nav a:hover,
.site-nav a:focus,
.site-nav a[aria-current='page'] {
  color: var(--navy);
  border-bottom-color: var(--navy);
  text-decoration: none;
}

main { min-height: 62vh; }

.home-intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 56px;
  align-items: start;
  padding: 62px 0 52px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--blue);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1, h2, h3 {
  color: var(--navy-dark);
  font-family: Georgia, 'Times New Roman', serif;
  font-weight: 700;
}

h1 {
  margin: 0 0 17px;
  font-size: clamp(2.3rem, 5vw, 3.65rem);
  line-height: 1.08;
  letter-spacing: -0.025em;
}

h2 {
  margin: 0 0 16px;
  font-size: 1.75rem;
  line-height: 1.25;
}

h3 {
  margin: 0 0 8px;
  font-size: 1.2rem;
  line-height: 1.35;
}

.lead {
  max-width: 720px;
  margin: 0 0 20px;
  color: #40464d;
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 1.18rem;
  line-height: 1.7;
}

.appointment {
  margin: 0 0 22px;
  color: var(--muted);
}

.action-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin-top: 24px;
}

.action-links a {
  font-weight: 600;
  border-bottom: 1px solid #b8c7d7;
}

.profile-frame {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--soft);
  padding: 8px;
}

.profile-frame img {
  display: block;
  width: 100%;
  height: 355px;
  object-fit: cover;
  object-position: center top;
}

.profile-placeholder {
  display: none;
  min-height: 320px;
  align-items: center;
  justify-content: center;
  padding: 24px;
  color: var(--muted);
  text-align: center;
}

.section {
  padding: 46px 0;
  border-top: 1px solid var(--line);
}

.section.soft { background: var(--soft); }

.section-header {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 34px;
  margin-bottom: 25px;
}

.section-header p {
  margin: 3px 0 0;
  color: var(--muted);
}

.two-column {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 38px 56px;
}

.three-column {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

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

.clean-list {
  margin: 0;
  padding-left: 21px;
}

.clean-list li { margin-bottom: 8px; }

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

.link-list li {
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.link-list li:first-child { padding-top: 0; }

.page-header {
  padding: 54px 0 31px;
  border-bottom: 1px solid var(--line);
  background: var(--soft);
}

.page-header h1 {
  margin-bottom: 10px;
  font-size: clamp(2rem, 4vw, 3rem);
}

.page-header p {
  max-width: 760px;
  margin: 0;
  color: var(--muted);
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 1.08rem;
}

.page-content { padding: 48px 0 68px; }

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 240px;
  gap: 62px;
  align-items: start;
}

.sidebar {
  border-left: 3px solid var(--navy);
  padding-left: 18px;
}

.sidebar h2 {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.93rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.sidebar ul {
  margin: 0;
  padding-left: 18px;
}

.research-area,
.project,
.teaching-block {
  padding: 0 0 28px;
  margin: 0 0 30px;
  border-bottom: 1px solid var(--line);
}

.research-area:last-child,
.project:last-child,
.teaching-block:last-child {
  border-bottom: 0;
  margin-bottom: 0;
  padding-bottom: 0;
}

.meta {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 0.93rem;
}

.publication-year {
  margin: 40px 0 18px;
  padding-bottom: 7px;
  border-bottom: 2px solid var(--navy);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
}

.publication-year:first-child { margin-top: 0; }

.publication-list {
  margin: 0;
  padding-left: 26px;
}

.publication-list li {
  margin-bottom: 22px;
  padding-left: 6px;
}

.publication-title {
  display: block;
  margin-bottom: 3px;
  font-weight: 700;
}

.publication-authors,
.publication-venue {
  display: block;
  color: var(--muted);
  font-size: 0.95rem;
}

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

.talk-item {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 26px;
  padding: 0 0 25px;
  margin-bottom: 25px;
  border-bottom: 1px solid var(--line);
}

.talk-item:last-child { border-bottom: 0; }

.talk-date {
  color: var(--navy);
  font-weight: 700;
}

.talk-item h2 {
  margin-bottom: 7px;
  font-size: 1.25rem;
}

.talk-item p { margin: 0; color: var(--muted); }

.course-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 12px;
}

.course-table th,
.course-table td {
  padding: 12px 14px;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.course-table th {
  background: var(--soft);
  color: var(--navy-dark);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.gallery-grid figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--white);
}

.gallery-grid img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: var(--soft);
}

.gallery-grid figcaption {
  padding: 12px 14px;
  color: var(--muted);
  font-size: 0.92rem;
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 50px;
}

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

.contact-list li {
  margin-bottom: 13px;
}

.site-footer {
  padding: 30px 0 40px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 20px;
}

@media (max-width: 880px) {
  .header-main { min-height: 78px; }
  .menu-toggle { display: block; }
  .site-nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 84px;
    z-index: 50;
    border-bottom: 1px solid var(--line);
    background: var(--white);
  }
  .site-nav.open { display: block; }
  .site-nav ul {
    display: block;
    width: min(var(--max-width), calc(100% - 40px));
    margin: 0 auto;
    padding: 10px 0 16px;
  }
  .site-nav a {
    display: block;
    padding: 10px 0;
    border-bottom: 0;
  }
  .home-intro {
    grid-template-columns: minmax(0, 1fr) 230px;
    gap: 34px;
  }
  .content-grid { grid-template-columns: 1fr; }
  .sidebar { order: -1; }
  .gallery-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 640px) {
  .container { width: min(var(--max-width), calc(100% - 28px)); }
  .site-role { display: none; }
  .home-intro {
    grid-template-columns: 1fr;
    padding-top: 42px;
  }
  .profile-frame {
    width: min(280px, 100%);
    order: -1;
  }
  .profile-frame img { height: 330px; }
  .section-header,
  .two-column,
  .three-column,
  .contact-grid { grid-template-columns: 1fr; }
  .section-header { gap: 4px; }
  .talk-item { grid-template-columns: 1fr; gap: 4px; }
  .gallery-grid { grid-template-columns: 1fr; }
  .footer-inner { display: block; }
  .footer-inner p { margin: 4px 0; }
}

@media print {
  .site-header,
  .site-footer,
  .action-links,
  .sidebar { display: none; }
  body { color: #000; font-size: 11pt; }
  a { color: #000; text-decoration: none; }
  .page-header { background: #fff; }
}