:root {
  --navy-950: #071a2d;
  --navy-900: #0b243d;
  --navy-800: #123858;
  --teal-600: #0c7c7b;
  --teal-500: #13a09d;
  --teal-100: #dff3f1;
  --copper-500: #c77a3b;
  --ink: #162536;
  --muted: #5f6d7b;
  --line: #dbe4e8;
  --surface: #f4f8f8;
  --white: #ffffff;
  --shadow: 0 18px 45px rgba(7, 26, 45, 0.10);
  --radius-lg: 28px;
  --radius-md: 18px;
  --container: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
:focus-visible { outline: 3px solid rgba(19, 160, 157, .42); outline-offset: 3px; }
.container { width: min(calc(100% - 40px), var(--container)); margin-inline: auto; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 999; padding: 10px 16px; background: var(--white); border-radius: 8px; box-shadow: var(--shadow); }
.skip-link:focus { top: 16px; }

.site-header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,.93); border-bottom: 1px solid rgba(219,228,232,.85); backdrop-filter: blur(14px); }
.nav-wrap { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 800; letter-spacing: -.02em; }
.brand-mark { width: 40px; height: 40px; border-radius: 13px; display: grid; place-items: center; color: var(--white); background: linear-gradient(145deg, var(--navy-900), var(--teal-600)); box-shadow: 0 8px 20px rgba(12,124,123,.22); font-size: .78rem; letter-spacing: -.03em; }
.brand-text small { display: block; color: var(--muted); font-size: .69rem; font-weight: 650; letter-spacing: .08em; text-transform: uppercase; line-height: 1.2; }
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a { padding: 10px 12px; border-radius: 10px; color: #425264; font-size: .92rem; font-weight: 650; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--teal-600); background: var(--teal-100); }
.menu-toggle { display: none; width: 44px; height: 44px; padding: 0; border: 1px solid var(--line); border-radius: 12px; background: var(--white); color: var(--navy-900); cursor: pointer; }
.menu-toggle span, .menu-toggle::before, .menu-toggle::after { content: ""; display: block; width: 20px; height: 2px; margin: 4px auto; background: currentColor; transition: .2s ease; }
.menu-toggle[aria-expanded="true"] span { opacity: 0; }
.menu-toggle[aria-expanded="true"]::before { transform: translateY(6px) rotate(45deg); }
.menu-toggle[aria-expanded="true"]::after { transform: translateY(-6px) rotate(-45deg); }

.hero { position: relative; overflow: hidden; padding: clamp(74px, 10vw, 132px) 0 84px; background: radial-gradient(circle at 90% 12%, rgba(19,160,157,.18), transparent 31%), linear-gradient(145deg, #f8fbfb 15%, #edf7f6 100%); }
.hero::after { content: ""; position: absolute; width: 460px; height: 460px; right: -220px; bottom: -280px; border: 64px solid rgba(12,124,123,.07); border-radius: 50%; }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(300px, .6fr); gap: 64px; align-items: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; margin: 0 0 18px; color: var(--teal-600); font-size: .78rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 26px; height: 2px; background: var(--copper-500); }
h1, h2, h3 { margin: 0; color: var(--navy-950); line-height: 1.12; letter-spacing: -.035em; }
h1 { max-width: 900px; font-size: clamp(2.5rem, 6vw, 5.25rem); }
h2 { font-size: clamp(2rem, 4vw, 3.35rem); }
h3 { font-size: 1.28rem; }
.hero-role { margin: 18px 0 0; color: var(--navy-800); font-size: clamp(1.15rem, 2.3vw, 1.52rem); font-weight: 700; }
.hero-copy { max-width: 720px; margin: 22px 0 0; color: #4b5e6d; font-size: 1.08rem; }
.button-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.btn { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; gap: 9px; padding: 12px 19px; border: 1px solid transparent; border-radius: 13px; font-weight: 750; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { color: var(--white); background: var(--navy-900); box-shadow: 0 10px 24px rgba(7,26,45,.16); }
.btn-primary:hover { background: var(--teal-600); }
.btn-secondary { border-color: #b8c9cf; background: rgba(255,255,255,.7); color: var(--navy-900); }
.btn-secondary:hover { border-color: var(--teal-500); background: var(--white); }
.hero-signature { position: relative; min-height: 390px; border-radius: var(--radius-lg); padding: 35px; color: var(--white); background: linear-gradient(155deg, var(--navy-950), var(--navy-800)); box-shadow: var(--shadow); overflow: hidden; }
.hero-signature::before { content: ""; position: absolute; inset: 46px -100px auto auto; width: 300px; height: 300px; border: 54px solid rgba(19,160,157,.27); border-radius: 50%; }
.hero-signature::after { content: ""; position: absolute; left: 42px; bottom: 50px; width: 170px; height: 7px; border-radius: 99px; background: var(--copper-500); transform: rotate(-25deg); box-shadow: 42px -56px 0 rgba(255,255,255,.2), 86px -112px 0 rgba(19,160,157,.6); }
.signature-label { position: relative; z-index: 1; color: #a9d9d7; font-size: .75rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
.signature-quote { position: relative; z-index: 1; max-width: 260px; margin-top: 22px; font-size: 1.75rem; font-weight: 800; line-height: 1.22; letter-spacing: -.035em; }

.section { padding: 96px 0; }
.section-tint { background: var(--surface); }
.section-dark { color: #dce9ed; background: var(--navy-950); }
.section-dark h2, .section-dark h3 { color: var(--white); }
.section-head { display: flex; justify-content: space-between; gap: 32px; align-items: end; margin-bottom: 42px; }
.section-head p { max-width: 590px; margin: 0; color: var(--muted); }
.section-dark .section-head p { color: #aebfc8; }
.grid-2, .grid-3, .grid-4 { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0,1fr)); }
.card { position: relative; min-width: 0; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--white); transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.card:hover { transform: translateY(-4px); border-color: #b4d9d7; box-shadow: 0 18px 36px rgba(7,26,45,.08); }
.card-number { display: grid; width: 40px; height: 40px; place-items: center; margin-bottom: 28px; border-radius: 12px; color: var(--teal-600); background: var(--teal-100); font-weight: 850; }
.card p { margin: 12px 0 0; color: var(--muted); }
.text-link { display: inline-flex; align-items: center; gap: 8px; margin-top: 18px; color: var(--teal-600); font-weight: 750; }
.text-link::after { content: "›"; font-size: 1.35rem; line-height: 1; }
.meta { color: var(--teal-600); font-size: .78rem; font-weight: 800; letter-spacing: .09em; text-transform: uppercase; }
.metric { padding: 26px 0; border-top: 1px solid rgba(255,255,255,.16); }
.metric strong { display: block; color: var(--white); font-size: 1.3rem; }
.metric span { color: #aebfc8; }
.process { display: grid; grid-template-columns: repeat(6, 1fr); gap: 10px; margin-top: 40px; }
.process span { min-height: 92px; display: grid; place-items: center; padding: 14px 8px; border: 1px solid rgba(255,255,255,.14); border-radius: 14px; color: #d8e7ea; text-align: center; font-size: .88rem; font-weight: 700; }
.process span:nth-child(3), .process span:nth-child(6) { color: var(--white); border-color: rgba(19,160,157,.5); background: rgba(19,160,157,.14); }
.cta { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 30px; padding: 42px; border-radius: var(--radius-lg); color: var(--white); background: linear-gradient(125deg, var(--teal-600), var(--navy-800)); box-shadow: var(--shadow); }
.cta h2 { color: var(--white); font-size: clamp(1.8rem,3.5vw,2.8rem); }
.cta p { max-width: 700px; margin: 12px 0 0; color: #d7eeee; }
.cta .btn { background: var(--white); color: var(--navy-900); }

.page-hero { padding: 78px 0 62px; background: radial-gradient(circle at 84% 0, rgba(19,160,157,.16), transparent 34%), var(--surface); }
.page-hero h1 { max-width: 880px; font-size: clamp(2.4rem,5vw,4.5rem); }
.page-hero p { max-width: 760px; margin: 22px 0 0; color: var(--muted); font-size: 1.08rem; }
.bio-layout { display: grid; grid-template-columns: minmax(0,1.5fr) minmax(280px,.5fr); gap: 56px; align-items: start; }
.bio-copy p:first-of-type { margin-top: 0; }
.side-panel { padding: 28px; border-radius: var(--radius-md); background: var(--navy-950); color: #dbe8ec; }
.side-panel h3 { color: var(--white); }
.detail-list { list-style: none; padding: 0; margin: 22px 0 0; }
.detail-list li { padding: 14px 0; border-top: 1px solid rgba(255,255,255,.13); }
.detail-list small { display: block; color: #9db0bb; font-size: .76rem; font-weight: 750; letter-spacing: .06em; text-transform: uppercase; }
.timeline { position: relative; margin-top: 36px; }
.timeline-item { display: grid; grid-template-columns: 100px 1fr; gap: 24px; padding: 0 0 34px 24px; border-left: 2px solid var(--line); }
.timeline-item::before { content: ""; width: 12px; height: 12px; margin-left: -31px; margin-top: 7px; border: 3px solid var(--white); border-radius: 50%; background: var(--teal-500); box-shadow: 0 0 0 2px var(--teal-500); }
.timeline-year { grid-column: 1; grid-row: 1; color: var(--teal-600); font-weight: 850; }
.timeline-body { grid-column: 2; grid-row: 1; }
.timeline-body p { margin: 6px 0 0; color: var(--muted); }
.tag-list { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 25px; }
.tag { padding: 8px 12px; border: 1px solid #cbdcdf; border-radius: 999px; color: var(--navy-800); background: #f9fbfb; font-size: .86rem; font-weight: 650; }
.research-card { overflow: hidden; }
.research-band { height: 10px; margin: -28px -28px 26px; background: linear-gradient(90deg,var(--teal-500),var(--navy-800)); }
.project-list { list-style: none; padding: 0; margin: 20px 0 0; }
.project-list li { position: relative; padding: 10px 0 10px 22px; border-top: 1px solid var(--line); color: #465a69; }
.project-list li::before { content: ""; position: absolute; left: 2px; top: 20px; width: 7px; height: 7px; border-radius: 50%; background: var(--copper-500); }
.publication { display: grid; grid-template-columns: 92px 1fr auto; gap: 26px; align-items: start; padding: 28px 0; border-top: 1px solid var(--line); }
.publication:first-child { border-top: 0; }
.pub-year { color: var(--teal-600); font-size: 1.05rem; font-weight: 850; }
.publication h3 { font-size: 1.15rem; line-height: 1.4; letter-spacing: -.015em; }
.publication p { margin: 7px 0 0; color: var(--muted); }
.status { display: inline-block; white-space: nowrap; padding: 7px 10px; border-radius: 999px; color: var(--navy-800); background: var(--teal-100); font-size: .73rem; font-weight: 800; letter-spacing: .05em; text-transform: uppercase; }
.innovation-hero { display: grid; grid-template-columns: minmax(0,1.1fr) minmax(300px,.9fr); gap: 48px; padding: 44px; border-radius: var(--radius-lg); color: #dce9ed; background: linear-gradient(145deg,var(--navy-950),var(--navy-800)); }
.innovation-hero h2 { color: var(--white); }
.innovation-hero p { color: #c5d5db; }
.innovation-facts { display: grid; grid-template-columns: repeat(2,1fr); gap: 12px; }
.fact { padding: 20px; border: 1px solid rgba(255,255,255,.14); border-radius: 14px; background: rgba(255,255,255,.06); }
.fact strong { display: block; color: var(--white); font-size: 1.08rem; }
.fact span { color: #acc0c9; font-size: .84rem; }
.contact-grid { display: grid; grid-template-columns: minmax(0,1.1fr) minmax(300px,.9fr); gap: 56px; }
.contact-list { display: grid; gap: 14px; margin-top: 30px; }
.contact-item { display: grid; grid-template-columns: 42px 1fr; gap: 14px; align-items: center; padding: 17px; border: 1px solid var(--line); border-radius: 14px; background: var(--white); }
.contact-icon { display: grid; width: 42px; height: 42px; place-items: center; border-radius: 12px; color: var(--teal-600); background: var(--teal-100); font-weight: 850; }
.contact-item small { display: block; color: var(--muted); font-size: .76rem; text-transform: uppercase; letter-spacing: .06em; }
.contact-item a { color: var(--navy-900); font-weight: 750; word-break: break-word; }
.collab-panel { padding: 34px; border-radius: var(--radius-lg); color: #d7e6ea; background: var(--navy-950); }
.collab-panel h2, .collab-panel h3 { color: var(--white); }
.collab-panel ul { padding-left: 20px; }
.copy-note { min-height: 24px; margin: 10px 0 0; color: #a7dbd8; font-size: .87rem; }

.site-footer { padding: 54px 0 28px; color: #b9c9d0; background: #061523; }
.footer-grid { display: grid; grid-template-columns: 1.4fr .6fr .6fr; gap: 36px; }
.site-footer .brand { color: var(--white); }
.footer-copy { max-width: 470px; margin: 18px 0 0; }
.footer-title { margin: 4px 0 15px; color: var(--white); font-size: .84rem; font-weight: 800; letter-spacing: .09em; text-transform: uppercase; }
.footer-links { display: grid; gap: 8px; }
.footer-links a:hover { color: #71cfcb; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; margin-top: 42px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.1); font-size: .84rem; }

.reveal { opacity: 0; transform: translateY(16px); transition: opacity .55s ease, transform .55s ease; }
.reveal.visible { opacity: 1; transform: none; }

@media (max-width: 1200px) {
  .menu-toggle { display: block; flex-shrink: 0; }
  .nav-links { position: absolute; left: 15px; right: 15px; top: 70px; display: none; padding: 12px; border: 1px solid var(--line); border-radius: 16px; background: var(--white); box-shadow: var(--shadow); }
  .nav-links.open { display: grid; }
  .nav-links a { padding: 12px; }
}

@media (max-width: 980px) {
  .menu-toggle { display: block; flex-shrink: 0; }
  .nav-links { position: absolute; left: 15px; right: 15px; top: 70px; display: none; padding: 12px; border: 1px solid var(--line); border-radius: 16px; background: var(--white); box-shadow: var(--shadow); }
  .nav-links.open { display: grid; }
  .nav-links a { padding: 12px; }
  .hero-grid, .bio-layout, .contact-grid, .innovation-hero { grid-template-columns: 1fr; }
  .hero-signature { min-height: 300px; }
  .grid-4 { grid-template-columns: repeat(2,1fr); }
  .grid-3 { grid-template-columns: repeat(2,1fr); }
  .process { grid-template-columns: repeat(3,1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > :first-child { grid-column: 1 / -1; }
}

@media (max-width: 760px) {
  .container { width: min(calc(100% - 30px), var(--container)); }
  .menu-toggle { display: block; }
  .nav-links { position: absolute; left: 15px; right: 15px; top: 70px; display: none; padding: 12px; border: 1px solid var(--line); border-radius: 16px; background: var(--white); box-shadow: var(--shadow); }
  .nav-links.open { display: grid; }
  .nav-links a { padding: 12px; }
  .brand-text { font-size: .88rem; }
  .hero { padding-top: 62px; }
  .section { padding: 72px 0; }
  .section-head { display: block; }
  .section-head p { margin-top: 16px; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .process { grid-template-columns: repeat(2,1fr); }
  .cta { grid-template-columns: 1fr; padding: 30px; }
  .publication { grid-template-columns: 62px 1fr; gap: 16px; }
  .publication .status { grid-column: 2; justify-self: start; }
  .timeline-item { grid-template-columns: 72px 1fr; gap: 14px; padding-left: 20px; }
  .timeline-item::before { margin-left: -27px; }
  .innovation-hero { padding: 30px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-grid > :first-child { grid-column: auto; }
  .footer-bottom { display: block; }
}

@media (max-width: 420px) {
  h1 { font-size: 2.35rem; }
  .brand-text small { display: none; }
  .hero-signature { min-height: 260px; padding: 26px; }
  .signature-quote { font-size: 1.48rem; }
  .process, .innovation-facts { grid-template-columns: 1fr; }
  .publication { grid-template-columns: 1fr; }
  .publication .status { grid-column: 1; }
  .timeline-item { grid-template-columns: 1fr; }
  .timeline-body { grid-column: 1; grid-row: 2; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}