:root {
  --ink: #132238;
  --ink-soft: #425067;
  --navy: #14263e;
  --navy-2: #1c3554;
  --accent: #9a7447;
  --accent-soft: #f2eadf;
  --paper: #ffffff;
  --soft: #f6f7f8;
  --line: #dfe4e8;
  --max: 1180px;
  --radius: 20px;
  --shadow: 0 18px 60px rgba(20, 38, 62, 0.10);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
.container { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; }
.section { padding: 92px 0; }
.soft-bg { background: var(--soft); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(255,255,255,.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(223,228,232,.9);
}
.nav-wrap { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--navy);
  color: white;
  text-decoration: none;
  font-weight: 800;
  letter-spacing: -.03em;
}
nav { display: flex; flex-wrap: wrap; align-items: center; justify-content: flex-end; gap: 24px; }
nav a { text-decoration: none; font-size: .94rem; color: var(--ink-soft); font-weight: 600; }
nav a:hover { color: var(--ink); }
.nav-cv { padding: 8px 13px; border: 1px solid var(--line); border-radius: 10px; }

.hero { padding-top: 80px; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(320px, .75fr); align-items: center; gap: 72px; }
.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .11em;
  font-size: .78rem;
}
h1, h2, h3 { line-height: 1.12; letter-spacing: -.035em; }
h1 { font-size: clamp(3.4rem, 7vw, 6.6rem); margin: 0; max-width: 800px; }
h2 { font-size: clamp(2.15rem, 4vw, 3.5rem); margin: 0 0 20px; }
h3 { font-size: 1.35rem; margin: 0 0 12px; }
.hero-title { font-size: clamp(1.45rem, 2.5vw, 2.2rem); line-height: 1.3; color: var(--ink-soft); margin: 20px 0 28px; max-width: 820px; }
.lead { font-size: 1.14rem; max-width: 790px; margin: 0 0 18px; }
.hero-detail { color: var(--ink-soft); max-width: 790px; margin: 0; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 34px 0 22px; }
.button { display: inline-flex; align-items: center; justify-content: center; padding: 12px 18px; border-radius: 12px; font-weight: 750; text-decoration: none; transition: .18s ease; }
.button.primary { background: var(--navy); color: white; }
.button.primary:hover { transform: translateY(-2px); background: var(--navy-2); }
.button.secondary { border: 1px solid var(--line); background: white; }
.button.secondary:hover { border-color: #c8d0d7; transform: translateY(-2px); }
.social-links { display: flex; flex-wrap: wrap; gap: 10px; color: var(--ink-soft); font-size: .95rem; }
.social-links a { text-decoration-thickness: 1px; text-underline-offset: 4px; }
.profile-card { background: white; border: 1px solid var(--line); border-radius: 26px; overflow: hidden; box-shadow: var(--shadow); }
.profile-card img { width: 100%; display: block; aspect-ratio: 4 / 5; object-fit: cover; object-position: center 28%; }
.profile-card-body { padding: 22px 24px 25px; color: var(--ink-soft); font-size: .93rem; }
.profile-card-body p { margin: 4px 0; }
.profile-card-body .profile-name { color: var(--ink); font-weight: 800; font-size: 1.12rem; margin-bottom: 8px; }

.section-heading { max-width: 760px; margin-bottom: 42px; }
.section-heading p:last-child { color: var(--ink-soft); font-size: 1.06rem; }
.row-heading { max-width: none; display: flex; align-items: end; justify-content: space-between; gap: 24px; }
.text-link { font-weight: 750; color: var(--ink-soft); text-underline-offset: 5px; }
.card-grid { display: grid; gap: 18px; }
.research-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
.card { background: white; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.card p { color: var(--ink-soft); margin-bottom: 0; }
.card-number { display: inline-block; margin-bottom: 34px; font-weight: 800; font-size: .83rem; color: var(--accent); }
.methods-band { margin-top: 24px; background: var(--navy); color: white; border-radius: var(--radius); padding: 30px; display: grid; grid-template-columns: 220px 1fr; gap: 28px; align-items: center; }
.methods-band h3 { margin: 0; font-size: 1.75rem; }
.methods-band .eyebrow { color: #d9bd91; }
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chips span { border: 1px solid rgba(255,255,255,.2); background: rgba(255,255,255,.08); padding: 7px 11px; border-radius: 999px; font-size: .9rem; }
.featured-project { margin-top: 24px; border: 1px solid #dfd2c2; background: linear-gradient(135deg, #fffaf4, #f4eee7); border-radius: var(--radius); padding: 32px; display: grid; grid-template-columns: 1fr auto; gap: 40px; align-items: end; }
.featured-project p { margin: 7px 0 0; color: var(--ink-soft); }
.project-subtitle { font-size: 1.06rem; font-weight: 750; color: var(--ink) !important; }
.project-meta { display: flex; flex-direction: column; gap: 8px; min-width: 230px; }
.project-meta span { border-top: 1px solid #dfd2c2; padding-top: 8px; font-size: .92rem; }

.publication-list { border-top: 1px solid var(--line); }
.publication { display: grid; grid-template-columns: 185px 1fr; gap: 28px; padding: 27px 0; border-bottom: 1px solid var(--line); }
.publication h3 { margin-bottom: 9px; }
.publication p { margin: 4px 0; color: var(--ink-soft); }
.pub-badge { align-self: start; width: fit-content; padding: 7px 10px; border-radius: 999px; background: var(--soft); border: 1px solid var(--line); font-weight: 800; font-size: .78rem; letter-spacing: .01em; }
.pub-badge.award { background: var(--accent-soft); border-color: #e5d3bc; }
.featured-pub { background: linear-gradient(90deg, rgba(242,234,223,.65), transparent 68%); }
.venue { font-size: .93rem; }

.teaching-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
.course-code { margin-top: 0 !important; color: var(--accent) !important; font-weight: 800; font-size: .85rem; letter-spacing: .04em; }
.muted { font-size: .93rem; }
.previous-teaching { margin-top: 18px; color: var(--ink-soft); font-size: .95rem; }

.service-columns { display: grid; grid-template-columns: 1fr 1fr .72fr; gap: 18px; }
.service-block { border-top: 3px solid var(--navy); padding-top: 18px; }
.service-block ul { margin: 0; padding-left: 20px; color: var(--ink-soft); }
.service-block li + li { margin-top: 9px; }
.compact-block p { color: var(--ink-soft); }

.dark-section { background: var(--navy); color: white; }
.light-heading .eyebrow { color: #d9bd91; }
.timeline { border-top: 1px solid rgba(255,255,255,.2); }
.timeline-item { display: grid; grid-template-columns: 95px 1fr; gap: 30px; padding: 26px 0; border-bottom: 1px solid rgba(255,255,255,.15); }
.timeline-item > span { color: #d9bd91; font-weight: 850; }
.timeline-item p { color: rgba(255,255,255,.75); margin: 6px 0 0; }

.collaboration-section { padding-top: 70px; padding-bottom: 70px; }
.collaboration-box { border: 1px solid var(--line); border-radius: 28px; padding: 42px; display: grid; grid-template-columns: 1fr auto; gap: 42px; align-items: center; box-shadow: var(--shadow); }
.collaboration-box p { color: var(--ink-soft); max-width: 850px; }

.contact-grid { display: grid; grid-template-columns: 1.05fr .9fr .9fr; gap: 28px; align-items: start; }
.contact-grid p { color: var(--ink-soft); }
.contact-grid a { text-underline-offset: 4px; }
.address-card, .hobby-box { background: white; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.address-links { margin-top: 20px; }
.hobby-box .eyebrow { margin-bottom: 10px; }

footer { background: #0c1726; color: rgba(255,255,255,.65); padding: 24px 0; }
.footer-wrap { display: flex; justify-content: space-between; gap: 20px; font-size: .88rem; }

@media (max-width: 920px) {
  .nav-wrap { padding: 12px 0; align-items: flex-start; }
  nav { gap: 12px 16px; }
  .hero-grid { grid-template-columns: 1fr; gap: 44px; }
  .profile-card { max-width: 460px; }
  .research-grid, .teaching-grid { grid-template-columns: 1fr; }
  .methods-band { grid-template-columns: 1fr; }
  .featured-project { grid-template-columns: 1fr; }
  .project-meta { min-width: 0; }
  .service-columns { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr 1fr; }
  .hobby-box { grid-column: 1 / -1; }
}

@media (max-width: 680px) {
  .container { width: min(var(--max), calc(100% - 28px)); }
  .section { padding: 68px 0; }
  .site-header { position: static; }
  .nav-wrap { display: block; }
  .brand { margin-bottom: 12px; }
  nav { justify-content: flex-start; }
  h1 { font-size: clamp(3.1rem, 16vw, 4.7rem); }
  .row-heading { display: block; }
  .row-heading .text-link { display: inline-block; margin-top: 6px; }
  .publication { grid-template-columns: 1fr; gap: 13px; }
  .collaboration-box { grid-template-columns: 1fr; padding: 28px; }
  .contact-grid { grid-template-columns: 1fr; }
  .hobby-box { grid-column: auto; }
  .timeline-item { grid-template-columns: 64px 1fr; gap: 16px; }
  .footer-wrap { display: block; }
  .footer-wrap span { display: block; margin: 4px 0; }
}

/* Publications page */
.page-title { font-size: clamp(3.1rem, 6vw, 5.5rem); margin: 0; max-width: 900px; }
.publications-hero { padding-bottom: 64px; }
.publications-intro { max-width: 900px; }
.pub-group + .pub-group { margin-top: 68px; }
.pub-group > h2 { margin-bottom: 24px; font-size: clamp(1.9rem, 3vw, 2.7rem); }
.full-publication .pub-link { display: inline-block; margin-top: 8px; font-weight: 750; color: var(--ink); text-underline-offset: 4px; }
footer a { color: inherit; text-underline-offset: 4px; }
nav a[aria-current="page"] { color: var(--ink); }

/* About section */
.about-section { padding-top: 72px; padding-bottom: 72px; }
.about-grid { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(280px, .7fr); gap: 48px; align-items: start; }
.about-copy { font-size: 1.06rem; color: var(--ink-soft); }
.about-copy p:first-child { margin-top: 0; }
.about-copy p:last-child { margin-bottom: 0; }
.about-personal { border-left: 3px solid var(--accent); padding: 4px 0 4px 24px; }
.about-personal p { color: var(--ink-soft); margin-bottom: 18px; }
.hobby-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.hobby-chips span { padding: 6px 10px; border-radius: 999px; background: var(--soft); border: 1px solid var(--line); font-size: .88rem; color: var(--ink-soft); }
.subsection-title { margin: 0 0 18px; font-size: 1.35rem; }
.previous-teaching { margin-top: 30px; color: var(--ink-soft); font-size: .95rem; }
.previous-teaching p { margin: 0; }
.contact-grid { grid-template-columns: 1.05fr .9fr; }

@media (max-width: 920px) {
  .about-grid { grid-template-columns: 1fr; gap: 30px; }
  .about-personal { border-left: 0; border-top: 3px solid var(--accent); padding: 22px 0 0; }
  .contact-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 680px) {
  .contact-grid { grid-template-columns: 1fr; }
}

/* About sidebar refinements */
.about-sidebar { display: flex; flex-direction: column; gap: 40px; }
.about-side-block { border-left: 3px solid var(--accent); padding: 4px 0 4px 24px; }
.about-side-block p { color: var(--ink-soft); margin-bottom: 18px; }
.language-list {
  display: flex;
  flex-wrap: wrap;
  column-gap: 20px;
  row-gap: 10px;
  color: var(--ink-soft);
}
.language-list span { white-space: nowrap; }

.about-copy a { text-underline-offset: 4px; }

@media (max-width: 920px) {
  .about-side-block { border-left: 0; border-top: 3px solid var(--accent); padding: 22px 0 0; }
}


/* Layout refinements — September 2026 */
.research-heading { max-width: none; }
.research-heading p { white-space: nowrap; }
.research-card {
  min-height: 230px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.research-card h3 { margin-top: 0; }
.methods-band .chips-rows {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.chip-row {
  display: flex;
  flex-wrap: nowrap;
  gap: 10px;
}
.featured-project .eyebrow {
  margin: 0 0 22px;
}
.about-sidebar { gap: 0; }
.about-side-block + .about-side-block {
  margin-top: 70px;
}

@media (max-width: 1100px) {
  .research-heading p { white-space: normal; }
  .chip-row { flex-wrap: wrap; }
}

@media (max-width: 920px) {
  .about-side-block + .about-side-block { margin-top: 38px; }
}