:root {
  --ink: #17243a;
  --ink-soft: #536176;
  --muted: #738096;
  --paper: #f7f8fb;
  --white: #ffffff;
  --line: #e2e7ef;
  --navy: #183b67;
  --blue: #2f659b;
  --blue-soft: #eaf1f8;
  --sand: #f0e8d9;
  --green: #dcebe4;
  --serif: Georgia, "Times New Roman", serif;
  --sans: "DM Sans", system-ui, sans-serif;
  --display: "Manrope", "DM Sans", sans-serif;
  --shadow: 0 20px 55px rgba(25, 47, 77, .08);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 92px; }
body { margin: 0; overflow-x: hidden; color: var(--ink); background: var(--paper); font-family: var(--sans); line-height: 1.65; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
::selection { background: #d8e6f4; color: var(--ink); }
.skip-link { position: absolute; left: 1rem; top: -4rem; z-index: 100; background: white; padding: .75rem 1rem; border-radius: .5rem; }
.skip-link:focus { top: 1rem; }
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(247,248,251,.92); border-bottom: 1px solid rgba(226,231,239,.8); backdrop-filter: blur(18px); }
.nav-wrap, .section-shell, .footer-inner, .footer-bottom { width: min(1160px, calc(100% - 48px)); margin-inline: auto; }
.nav-wrap { min-height: 82px; display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.brand { display: inline-flex; align-items: center; gap: .75rem; flex-shrink: 0; }
.brand-mark { width: 39px; height: 39px; padding: 5px; background: var(--white); border-radius: 11px; box-shadow: inset 0 0 0 1px var(--line); object-fit: contain; }
.brand-name { display: grid; font-size: .77rem; line-height: 1.35; letter-spacing: -.02em; color: #536176; }
.brand-name b { font-size: .83rem; color: var(--ink); font-weight: 700; }
.primary-nav { display: flex; align-items: center; gap: clamp(.75rem, 1.65vw, 1.55rem); }
.primary-nav a { color: #4e5d72; font-size: .78rem; font-weight: 600; transition: color .2s; }
.primary-nav a:hover, .primary-nav a:focus-visible { color: var(--blue); }
.language-toggle { border: 1px solid #d4dce7; background: white; border-radius: 7px; padding: .42rem .65rem; color: var(--navy); font-size: .75rem; font-weight: 800; cursor: pointer; }
.menu-toggle { display: none; }
.hero { display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: clamp(3rem, 7vw, 6.5rem); padding-top: clamp(5rem, 9vw, 8.5rem); padding-bottom: clamp(5rem, 8vw, 7rem); min-height: 620px; }
.eyebrow { display: flex; align-items: center; gap: .65rem; margin: 0 0 1.25rem; color: var(--blue); text-transform: uppercase; font-size: .68rem; font-weight: 800; letter-spacing: .16em; }
.eyebrow-line { display: inline-block; width: 27px; height: 2px; background: currentColor; }
.hero h1 { max-width: 670px; margin: 0; font-family: var(--display); font-size: clamp(2.75rem, 5.1vw, 4.75rem); line-height: 1.09; letter-spacing: -.065em; font-weight: 700; }
.hero-lead { max-width: 560px; margin: 1.55rem 0 0; color: var(--ink-soft); font-size: clamp(1rem, 1.5vw, 1.13rem); line-height: 1.8; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2rem; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 1.25rem; min-height: 48px; padding: .75rem 1.1rem; border-radius: 8px; font-size: .83rem; font-weight: 700; transition: transform .2s, box-shadow .2s, background .2s; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--navy); color: white; box-shadow: 0 8px 20px rgba(24,59,103,.16); }
.button-primary:hover { background: #214e7e; box-shadow: 0 12px 26px rgba(24,59,103,.2); }
.button-secondary { border: 1px solid #d8e0e9; background: rgba(255,255,255,.6); color: var(--ink); }
.hero-meta { display: flex; align-items: center; gap: .55rem; margin-top: 2rem; color: var(--muted); font-size: .75rem; }
.meta-dot, .feature-dot, .note-dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: #6b9a86; }
.hero-visual { position: relative; min-height: clamp(380px, 40vw, 520px); display: grid; place-items: center; isolation: isolate; }
.visual-core { position: relative; z-index: 2; width: 168px; height: 168px; border-radius: 50%; display: flex; align-items: center; justify-content: center; background: var(--white); box-shadow: var(--shadow), inset 0 0 0 1px var(--line); }
.core-icon { width: 74%; height: 74%; object-fit: contain; }
.visual-core-photo { width: clamp(280px, 34vw, 460px); height: clamp(280px, 34vw, 460px); border: 5px solid var(--blue); box-shadow: var(--shadow); overflow: hidden; }
.hero-photo { width: 100%; height: 100%; object-fit: cover; border-radius: 50%; display: block; }
.visual-note { position: absolute; bottom: 2%; display: flex; align-items: center; gap: .55rem; color: var(--muted); font-size: .7rem; letter-spacing: .03em; }
.about-orbit { position: relative; width: 110px; height: 110px; margin: 0 auto 1.1rem; display: grid; place-items: center; isolation: isolate; }
.orbit { position: absolute; border: 1px solid #c7d6e6; border-radius: 50%; transform: rotate(-25deg); }
.about-orbit .orbit-one { width: 108px; height: 66px; }
.about-orbit .orbit-two { width: 132px; height: 84px; transform: rotate(42deg); border-color: #d8e1ec; }
.about-orbit .profile-badge { width: 84px; height: 84px; }
@media (prefers-reduced-motion: no-preference) {
  .about-orbit .orbit-one { animation: orbit-spin-one 18s linear infinite; }
  .about-orbit .orbit-two { animation: orbit-spin-two 24s linear infinite; }
}
@keyframes orbit-spin-one { from { transform: rotate(-25deg); } to { transform: rotate(335deg); } }
@keyframes orbit-spin-two { from { transform: rotate(42deg); } to { transform: rotate(-318deg); } }
.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; box-shadow: 0 12px 35px rgba(25,47,77,.04); }
.pillar { padding: 1.65rem 1.7rem 1.75rem; background: white; min-height: 220px; }
.pillar-top { display: flex; align-items: center; justify-content: space-between; color: #8a96a8; font-size: .72rem; font-weight: 700; }
.pillar-icon { font-size: 1.45rem; color: var(--blue); }
.pillar h2 { margin: 1rem 0 .45rem; font: 700 1.1rem var(--display); letter-spacing: -.03em; }
.pillar p { min-height: 48px; margin: 0 0 1.1rem; color: var(--ink-soft); font-size: .85rem; line-height: 1.65; }
.text-link { display: inline-flex; align-items: center; gap: .55rem; color: var(--blue); font-size: .8rem; font-weight: 800; }
.text-link span:last-child { transition: transform .2s; }
.text-link:hover span:last-child { transform: translate(3px,-3px); }
.content-section { padding-top: clamp(5rem, 9vw, 8rem); padding-bottom: clamp(5rem, 8vw, 7rem); }
.section-heading { max-width: 690px; margin-bottom: 2.6rem; }
.section-heading h2 { margin: 0; font: 700 clamp(2rem, 4vw, 3.1rem)/1.15 var(--display); letter-spacing: -.06em; }
.section-intro { max-width: 480px; margin: .9rem 0 0; color: var(--ink-soft); font-size: .95rem; line-height: 1.8; }
.split-heading { max-width: none; display: flex; align-items: end; justify-content: space-between; gap: 2rem; }
.split-heading .section-intro { margin: 0 0 .25rem; }
.about-layout { display: grid; grid-template-columns: 1.3fr .7fr; gap: clamp(3rem, 8vw, 8rem); align-items: start; }
.about-main { max-width: 660px; }
.large-copy { margin: 0 0 1.2rem; color: #273c57; font: 400 clamp(1.35rem, 2.5vw, 1.85rem)/1.55 var(--display); letter-spacing: -.035em; }
.about-main > p:not(.large-copy) { margin: 0 0 1.5rem; color: var(--ink-soft); line-height: 1.9; font-size: .94rem; }
.profile-panel { padding: 1.5rem; background: white; border: 1px solid var(--line); border-radius: 12px; box-shadow: 0 10px 35px rgba(25,47,77,.04); }
.profile-name { margin: 0; font-weight: 800; font-family: var(--display); font-size: 1.05rem; }
.profile-role { margin: .25rem 0 1.2rem; color: var(--muted); font-size: .78rem; }
.profile-rule { height: 1px; background: var(--line); margin-bottom: .75rem; }
.profile-detail { display: flex; justify-content: space-between; gap: 1rem; padding: .55rem 0; font-size: .73rem; border-bottom: 1px solid #f0f2f6; }
.profile-detail span { color: var(--muted); }
.profile-detail b { max-width: 62%; text-align: right; font-weight: 700; overflow-wrap: anywhere; }
.tinted-section { background: #eef2f7; width: 100%; max-width: none; padding-left: max(24px, calc((100% - 1160px) / 2)); padding-right: max(24px, calc((100% - 1160px) / 2)); }
.research-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.research-card { position: relative; padding: 1.5rem; background: white; border: 1px solid #e1e7ef; border-radius: 12px; min-width: 0; }
.card-index { position: absolute; top: 1.4rem; right: 1.4rem; color: #a0aaba; font-size: .65rem; font-weight: 800; letter-spacing: .1em; }
.research-icon { display: grid; place-items: center; width: 46px; height: 46px; border-radius: 11px; background: var(--blue-soft); color: var(--navy); font-size: 1.6rem; }
.research-card h3 { margin: 1.4rem 0 .65rem; font: 700 1.1rem/1.35 var(--display); letter-spacing: -.03em; }
.research-card p, .project-body > p:not(.project-category) { min-height: 75px; color: var(--ink-soft); font-size: .84rem; line-height: 1.75; }
.tag-list { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: 1.1rem; }
.tag-list span { padding: .27rem .5rem; border-radius: 5px; background: #f1f4f8; color: #5d6c80; font-size: .65rem; font-weight: 700; }
.section-footnote { margin: 1.2rem 0 0; color: #7c899a; font-size: .72rem; }
.teaching-layout { display: grid; grid-template-columns: .82fr 1.18fr; gap: 2.5rem; align-items: stretch; }
.teaching-feature { display: flex; flex-direction: column; align-items: start; padding: clamp(1.5rem, 3vw, 2.4rem); border-radius: 14px; color: white; background: linear-gradient(145deg, #214b78, #142e4d); min-height: 340px; }
.feature-label { display: flex; align-items: center; gap: .5rem; color: #c5d8ec; font-size: .7rem; font-weight: 700; }
.feature-code { margin: 2.4rem 0 .5rem; color: #a9c4df; font-size: .68rem; font-weight: 800; letter-spacing: .16em; }
.teaching-feature h3 { margin: 0; max-width: 350px; font: 700 clamp(1.5rem, 2.5vw, 2rem)/1.2 var(--display); letter-spacing: -.045em; }
.teaching-feature > p:not(.feature-code) { margin: .8rem 0 1.4rem; color: #d4e0ec; font-size: .86rem; }
.button-light { margin-top: auto; background: white; color: var(--navy); }
.course-list { display: flex; flex-direction: column; justify-content: center; }
.course-item { display: grid; grid-template-columns: 40px 1fr 20px; align-items: start; gap: 1rem; padding: 1.25rem 0; border-bottom: 1px solid var(--line); }
.course-item:first-child { border-top: 1px solid var(--line); }
.course-number { color: var(--blue); font: 800 .75rem var(--display); padding-top: .2rem; }
.course-item h3 { margin: 0; font: 700 1rem var(--display); letter-spacing: -.025em; }
.course-item p { margin: .3rem 0 0; color: var(--ink-soft); font-size: .82rem; }
.course-arrow { color: var(--blue); }
.project-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.project-card { overflow: hidden; background: white; border: 1px solid var(--line); border-radius: 12px; transition: transform .2s, box-shadow .2s; }
.project-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.project-visual { height: 175px; position: relative; display: grid; place-items: center; overflow: hidden; }
.project-visual::before, .project-visual::after { content: ""; position: absolute; border: 1px solid rgba(24,59,103,.14); border-radius: 50%; width: 230px; height: 230px; }
.project-visual::after { width: 160px; height: 160px; }
.project-visual-blue { background: #e4edf6; }
.project-visual-sand { background: #f0e8d9; }
.project-visual-green { background: #deebe5; }
.project-glyph { position: relative; z-index: 1; color: var(--navy); font: 400 4.2rem var(--serif); }
.project-type { position: absolute; z-index: 2; left: 1rem; bottom: .9rem; font-size: .6rem; letter-spacing: .14em; font-weight: 800; color: #61748a; }
.project-body { padding: 1.35rem; }
.project-category { margin: 0; color: var(--blue); text-transform: uppercase; letter-spacing: .12em; font-size: .63rem; font-weight: 800; }
.project-body h3 { margin: .55rem 0 .5rem; font: 700 1.1rem/1.35 var(--display); letter-spacing: -.03em; }
.project-body > p:not(.project-category) { min-height: 78px; margin: 0; }
.project-body .text-link { margin-top: 1.3rem; }
.publication-list { border-top: 1px solid #d9e1eb; }
.publication-item { display: grid; grid-template-columns: 90px 1fr 35px; gap: 1.5rem; padding: 1.5rem 0; border-bottom: 1px solid #d9e1eb; }
.publication-year { color: var(--blue); font: 800 .78rem var(--display); padding-top: .2rem; }
.publication-kind { color: #7c899a; font-size: .62rem; font-weight: 800; letter-spacing: .13em; }
.publication-content h3 { margin: .3rem 0; font: 700 1.1rem var(--display); letter-spacing: -.025em; }
.publication-content p { margin: 0; color: var(--ink-soft); font-size: .82rem; }
.publication-placeholder { display: inline-block; margin-top: .5rem; color: #8793a3; font-size: .68rem; }
.publication-link { align-self: center; display: grid; place-items: center; width: 32px; height: 32px; border: 1px solid #d4dce7; border-radius: 50%; color: var(--blue); }
.contact-section { display: grid; grid-template-columns: 1fr .85fr; align-items: center; gap: clamp(2rem, 8vw, 7rem); padding-top: clamp(4rem, 7vw, 6rem); padding-bottom: clamp(4rem, 7vw, 6rem); }
.contact-copy h2 { max-width: 560px; margin: 0; color: white; font: 700 clamp(2.3rem, 4.5vw, 3.6rem)/1.12 var(--display); letter-spacing: -.06em; }
.contact-copy > p:last-child { max-width: 500px; margin: 1rem 0 0; color: #cfdae7; font-size: .95rem; line-height: 1.8; }
.contact-section { width: 100%; max-width: none; padding-left: max(24px, calc((100% - 1160px) / 2)); padding-right: max(24px, calc((100% - 1160px) / 2)); background: #142d4a; }
.eyebrow-light { color: #a9c5e0; }
.contact-panel { padding: 1.4rem 1.5rem; background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.14); border-radius: 12px; }
.contact-row { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .6rem; padding: .8rem 0; border-bottom: 1px solid rgba(255,255,255,.13); font-size: .78rem; }
.contact-row span { color: #c0cede; }
.contact-row b { color: white; font-weight: 600; overflow-wrap: anywhere; }
.contact-row b a:hover, .contact-row b a:focus-visible { text-decoration: underline; }
.site-footer { background: #10243b; color: #c3cfdd; padding: 1.7rem 0 1rem; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; padding-bottom: 1.4rem; }
.footer-brand .brand-name, .footer-brand .brand-name b { color: #e5ebf3; }
.footer-inner > p { margin: 0; font-size: .75rem; }
.back-top { color: #d9e4f0; font-size: .75rem; font-weight: 700; }
.footer-bottom { display: flex; justify-content: space-between; gap: 1rem; padding-top: 1rem; border-top: 1px solid rgba(255,255,255,.12); color: #8fa1b7; font-size: .67rem; }
:focus-visible { outline: 3px solid #77a9d8; outline-offset: 3px; }
@media (max-width: 1000px) {
  .primary-nav { gap: .8rem; }
  .primary-nav a { font-size: .72rem; }
  .brand-name { font-size: .7rem; }
  .brand-name b { font-size: .75rem; }
  .hero { gap: 2rem; }
}
@media (max-width: 820px) {
  .nav-wrap, .section-shell, .footer-inner, .footer-bottom { width: min(100% - 36px, 650px); }
  .nav-wrap { min-height: 72px; }
  .menu-toggle { display: flex; flex-direction: column; gap: 5px; justify-content: center; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 9px; background: white; cursor: pointer; }
  .menu-toggle span { width: 17px; height: 2px; background: var(--ink); margin-inline: auto; }
  .primary-nav { display: none; position: absolute; top: calc(100% + 1px); left: 0; right: 0; padding: 1rem 18px 1.2rem; background: rgba(247,248,251,.98); border-bottom: 1px solid var(--line); box-shadow: 0 18px 25px rgba(25,47,77,.08); align-items: stretch; flex-direction: column; gap: 0; }
  .primary-nav.open { display: flex; }
  .primary-nav a { padding: .72rem .3rem; font-size: .86rem; border-bottom: 1px solid #e9edf3; }
  .language-toggle { align-self: start; margin-top: .8rem; }
  .hero { grid-template-columns: 1fr; padding-top: 4rem; gap: 1rem; min-height: 0; }
  .hero-copy { max-width: 650px; }
  .hero-visual { width: min(100%, 490px); margin: 0 auto; min-height: 360px; }
  .pillars { grid-template-columns: 1fr; }
  .pillar { min-height: 0; padding: 1.4rem; }
  .pillar p { min-height: 0; }
  .about-layout, .teaching-layout, .contact-section { grid-template-columns: 1fr; }
  .profile-panel { max-width: 500px; }
  .research-grid, .project-grid { grid-template-columns: 1fr 1fr; }
  .research-card:last-child, .project-card:last-child { grid-column: 1 / -1; }
  .tinted-section, .contact-section { padding-left: max(18px, calc((100% - 650px) / 2)); padding-right: max(18px, calc((100% - 650px) / 2)); }
  .contact-section { gap: 2rem; }
}
@media (max-width: 560px) {
  .nav-wrap, .section-shell, .footer-inner, .footer-bottom { width: calc(100% - 32px); }
  .brand-name { max-width: 180px; }
  .hero { padding-top: 3.3rem; padding-bottom: 3.5rem; }
  .hero h1 { font-size: clamp(2.45rem, 12vw, 3.45rem); }
  .hero-visual { min-height: 300px; }
  .visual-note { bottom: 0; font-size: .62rem; }
  .pillars { margin-top: 0; }
  .content-section { padding-top: 4rem; padding-bottom: 4rem; }
  .section-heading { margin-bottom: 2rem; }
  .split-heading { display: block; }
  .split-heading .section-intro { margin-top: 1rem; }
  .research-grid, .project-grid { grid-template-columns: 1fr; }
  .research-card:last-child, .project-card:last-child { grid-column: auto; }
  .research-card p, .project-body > p:not(.project-category) { min-height: 0; }
  .project-visual { height: 155px; }
  .publication-item { grid-template-columns: 54px 1fr 28px; gap: .75rem; }
  .publication-content h3 { font-size: .98rem; }
  .publication-link { width: 27px; height: 27px; }
  .tinted-section, .contact-section { padding-left: 16px; padding-right: 16px; }
  .contact-section { padding-top: 3.5rem; padding-bottom: 3.5rem; }
  .footer-inner { align-items: flex-start; flex-wrap: wrap; }
  .footer-inner > p { order: 3; width: 100%; }
  .footer-bottom { flex-direction: column; gap: .35rem; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}