:root {
  --ink: #1d1d1b;
  --muted: #526a73;
  --line: #d3e6ed;
  --paper: #fff;
  --canvas: #f4fafc;
  --blue: #0078a2;
  --blue-dark: #006d96;
  --blue-alt: #007fa4;
  --blue-soft: #9cd8f7;
  --blue-pale: #e5f5fc;
  --pink: #cf70a2;
  --pink-dark: #b86ca1;
  --pink-soft: #f7e6ef;
  --shadow: 0 18px 55px rgba(0, 109, 150, .13);
  --radius: 18px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--canvas); font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; line-height: 1.6; }
a { color: inherit; }
svg { width: 1.05em; height: 1.05em; flex: 0 0 auto; }
button, input, select { font: inherit; }
.skip-link { position: fixed; z-index: 20; top: .75rem; left: .75rem; padding: .6rem 1rem; color: white; background: var(--blue); border-radius: 8px; transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

.site-header { min-height: 76px; padding: 0 clamp(1.25rem, 4vw, 4rem); display: flex; align-items: center; justify-content: space-between; gap: 2rem; color: white; background: var(--blue-dark); }
.brand { display: flex; align-items: center; gap: .8rem; text-decoration: none; line-height: 1.1; }
.brand-mark { display: grid; place-items: center; width: 42px; height: 42px; color: var(--blue-dark); background: var(--pink); border-radius: 12px 12px 12px 3px; font-size: .82rem; font-weight: 900; letter-spacing: .04em; }
.brand strong, .brand small { display: block; }
.brand strong { font-size: 1rem; letter-spacing: .01em; }
.brand small { margin-top: .24rem; color: #cbeaf6; font-size: .7rem; }
.site-header nav { display: flex; align-items: center; gap: clamp(1rem, 3vw, 2.2rem); }
.site-header nav a { display: flex; align-items: center; gap: .35rem; color: #e2f4fa; text-decoration: none; font-size: .9rem; font-weight: 650; }
.site-header nav a:hover { color: var(--pink); }

.hero { position: relative; isolation: isolate; min-height: 460px; padding: clamp(5rem, 9vw, 8rem) clamp(1.25rem, 8vw, 9rem); display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(300px, 520px); align-items: center; gap: clamp(2.5rem, 6vw, 6rem); overflow: hidden; color: white; background: radial-gradient(circle at 78% 32%, rgba(207, 112, 162, .25), transparent 27%), linear-gradient(125deg, var(--blue-dark), var(--blue-alt)); }
.hero-copy { position: relative; z-index: 2; }
.eyebrow { color: #f5ddea; font-size: .76rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
.hero h1 { max-width: 780px; margin: .8rem 0 1rem; font-size: clamp(2.7rem, 6vw, 5.1rem); line-height: 1.02; letter-spacing: -.055em; text-wrap: balance; }
.hero p { max-width: 670px; margin: 0 0 2rem; color: #d9f0f8; font-size: clamp(1rem, 1.6vw, 1.18rem); }
.hero-logo { position: relative; z-index: 1; width: 100%; padding: clamp(1rem, 2.5vw, 2rem); background: rgba(255, 255, 255, .96); border: 1px solid rgba(156, 216, 247, .65); border-radius: 24px 24px 24px 7px; box-shadow: 0 24px 65px rgba(0, 67, 91, .24); }
.hero-logo img { display: block; width: 100%; height: auto; }

.button { display: inline-flex; align-items: center; justify-content: center; gap: .55rem; min-height: 46px; padding: .7rem 1rem; border: 1px solid transparent; border-radius: 11px; text-decoration: none; font-size: .86rem; font-weight: 750; transition: transform .2s, background .2s, border-color .2s; }
.button:hover { transform: translateY(-1px); }
.button-primary { color: var(--blue-dark); background: var(--pink); }
.button-primary:hover { background: #e09ac0; }
.button-secondary { color: var(--blue); background: white; border-color: var(--line); }
.button-secondary:hover { border-color: var(--blue-soft); }
.button-disabled { color: #899491; background: #f4f6f5; cursor: not-allowed; }
.button-disabled:hover { transform: none; border-color: var(--line); }

.stats { position: relative; z-index: 3; width: min(1120px, calc(100% - 2.5rem)); margin: -42px auto 0; padding: 1.4rem 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); background: white; border: 1px solid rgba(211, 230, 237, .9); border-radius: var(--radius); box-shadow: var(--shadow); }
.stats div { padding: .35rem clamp(1rem, 4vw, 3rem); display: flex; flex-direction: column; }
.stats div + div { border-left: 1px solid var(--line); }
.stats strong { color: var(--blue); font-size: 1.85rem; line-height: 1.2; }
.stats span { color: var(--muted); font-size: .78rem; font-weight: 650; }

.about-section, .people-section { width: min(1120px, calc(100% - 2.5rem)); margin: 0 auto; padding: clamp(5rem, 8vw, 8rem) 0 0; scroll-margin-top: 1rem; }
.about-grid { display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(260px, .75fr); gap: 1rem; align-items: stretch; }
.about-copy, .research-areas, .service-card { padding: clamp(1.5rem, 3vw, 2.2rem); border: 1px solid var(--line); border-radius: var(--radius); }
.about-copy { background: white; }
.about-copy > p { margin: 0; color: #334f59; font-size: 1rem; line-height: 1.85; }
.about-copy > p + p { margin-top: 1rem; }
.research-areas { color: white; background: radial-gradient(circle at 90% 10%, rgba(207, 112, 162, .3), transparent 30%), var(--blue-dark); }
.research-areas > div { margin-top: 1.2rem; display: flex; flex-wrap: wrap; gap: .5rem; }
.research-areas > div span { padding: .36rem .65rem; color: #e5f6fc; background: rgba(255, 255, 255, .1); border: 1px solid rgba(255, 255, 255, .14); border-radius: 100px; font-size: .72rem; font-weight: 650; }
.services-grid { margin-top: 1rem; display: grid; grid-template-columns: minmax(0, 2fr) minmax(240px, 1fr); gap: 1rem; }
.service-card { background: white; }
.service-card h3 { margin: 0 0 1rem; color: var(--blue); font-size: 1rem; }
.service-card ul { margin: 0; padding-left: 1.15rem; color: var(--muted); font-size: .83rem; }
.service-card:first-child ul { columns: 2; column-gap: 2.4rem; }
.service-card li { margin: 0 0 .55rem; break-inside: avoid; }
.related-links { margin-top: 1.5rem; display: flex; flex-wrap: wrap; gap: .55rem; }
.related-links a, .source-link { display: inline-flex; align-items: center; gap: .35rem; color: var(--blue); font-size: .78rem; font-weight: 750; text-decoration: none; }
.related-links a { padding: .4rem .65rem; background: var(--blue-pale); border-radius: 8px; }
.source-link { margin-top: 1.2rem; }
.contact-note { margin: 1rem 0 0; padding: 1rem 1.2rem; color: #75435f; background: var(--pink-soft); border-left: 3px solid var(--pink); border-radius: 0 10px 10px 0; font-size: .82rem; }

.people-section { padding-bottom: clamp(1rem, 3vw, 2rem); }
.people-group + .people-group { margin-top: 2.2rem; }
.people-group > h3 { margin: 0 0 .85rem; color: var(--muted); font-size: .72rem; letter-spacing: .09em; text-transform: uppercase; }
.people-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .75rem; }
.person-card { min-height: 118px; padding: 1.15rem; display: flex; align-items: center; gap: .9rem; background: white; border: 1px solid var(--line); border-radius: 14px; }
.person-initials { display: grid; place-items: center; width: 48px; height: 48px; flex: 0 0 48px; color: var(--blue-dark); background: linear-gradient(135deg, var(--pink-soft), var(--blue-pale)); border-radius: 15px 15px 15px 4px; font-size: .8rem; font-weight: 850; }
.person-card span { color: var(--pink-dark); font-size: .61rem; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; }
.person-card h3 { margin: .16rem 0 0; font-size: .94rem; line-height: 1.3; }
.person-card h3 a { display: inline-flex; align-items: center; gap: .3rem; text-decoration: none; }
.person-card h3 svg { color: var(--blue); font-size: .72rem; }
.person-card p { margin: .3rem 0 0; color: var(--muted); font-size: .68rem; line-height: 1.4; }

.publication-section { width: min(1120px, calc(100% - 2.5rem)); margin: 0 auto; padding: clamp(5rem, 8vw, 8rem) 0; }
.section-heading { margin-bottom: 2rem; display: flex; align-items: end; justify-content: space-between; gap: 3rem; }
.section-heading h2 { margin: .35rem 0 0; font-size: clamp(2rem, 4vw, 3.2rem); line-height: 1.1; letter-spacing: -.04em; }
.section-heading p { max-width: 490px; margin: 0; color: var(--muted); }
.filters { display: grid; grid-template-columns: minmax(260px, 1fr) auto auto; gap: .65rem; padding: .65rem; background: white; border: 1px solid var(--line); border-radius: 14px; box-shadow: 0 8px 25px rgba(0, 109, 150, .06); }
.filters input, .filters select { width: 100%; height: 44px; color: var(--ink); background: #f4fafc; border: 1px solid transparent; border-radius: 9px; outline: none; }
.filters input { padding: 0 .8rem 0 2.5rem; }
.filters select { min-width: 145px; padding: 0 2.2rem 0 .8rem; }
.filters input:focus, .filters select:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(0, 120, 162, .15); }
.search-field { position: relative; }
.search-field svg { position: absolute; z-index: 2; left: .85rem; top: 50%; color: var(--muted); transform: translateY(-50%); }
.result-bar { min-height: 48px; padding: .9rem .2rem .45rem; display: flex; align-items: center; justify-content: space-between; color: var(--muted); font-size: .8rem; font-weight: 700; }
.result-bar button { padding: 0; color: var(--blue); background: none; border: 0; cursor: pointer; text-decoration: underline; }
.publication-list { display: grid; gap: .75rem; }
.publication-card { position: relative; display: grid; grid-template-columns: 122px 1fr 42px; align-items: center; gap: 1.2rem; min-height: 154px; padding: 1.45rem 1.4rem; background: white; border: 1px solid var(--line); border-radius: 15px; transition: transform .2s, border-color .2s, box-shadow .2s; }
.publication-card:hover { border-color: var(--blue-soft); box-shadow: 0 12px 34px rgba(0, 109, 150, .11); transform: translateY(-2px); }
.publication-card[hidden] { display: none; }
.card-year { align-self: stretch; padding-right: 1.2rem; display: flex; flex-direction: column; justify-content: center; border-right: 1px solid var(--line); }
.card-year span { color: var(--blue); font-size: 1.45rem; font-weight: 850; letter-spacing: -.04em; }
.card-year small { max-width: 90px; color: var(--muted); font-size: .68rem; line-height: 1.35; }
.card-heading { display: flex; align-items: flex-start; gap: .75rem; }
.card-heading h3 { margin: 0; font-size: clamp(1.05rem, 2vw, 1.28rem); line-height: 1.35; letter-spacing: -.015em; }
.card-heading h3 a { text-decoration: none; }
.card-heading h3 a::after { content: ""; position: absolute; inset: 0; }
.authors, .venue { margin: .42rem 0 0; color: var(--muted); font-size: .84rem; }
.venue { color: #316477; font-style: italic; }
.status-chip { display: inline-flex; width: max-content; padding: .22rem .5rem; color: #7f4263; background: var(--pink-soft); border-radius: 100px; font-size: .62rem; font-weight: 800; line-height: 1.4; text-transform: uppercase; }
.card-arrow { position: relative; z-index: 2; display: grid; place-items: center; width: 38px; height: 38px; color: var(--blue); background: var(--blue-pale); border-radius: 50%; text-decoration: none; }
.empty-state { padding: 4rem 1rem; text-align: center; background: white; border: 1px dashed #b9c8c4; border-radius: var(--radius); }
.empty-state > span { display: grid; place-items: center; width: 50px; height: 50px; margin: 0 auto; color: var(--blue); background: var(--blue-pale); border-radius: 50%; }
.empty-state h3 { margin: 1rem 0 .2rem; }
.empty-state p { margin: 0; color: var(--muted); }

.detail-back { width: min(1120px, calc(100% - 2.5rem)); margin: 0 auto; padding: 2rem 0 1.25rem; }
.detail-back a { color: var(--blue); font-size: .84rem; font-weight: 700; text-decoration: none; }
.paper { width: min(1120px, calc(100% - 2.5rem)); margin: 0 auto 6rem; }
.paper-header { padding: clamp(2rem, 5vw, 4rem); color: white; background: radial-gradient(circle at 88% 18%, rgba(207, 112, 162, .24), transparent 24%), linear-gradient(135deg, var(--blue-dark), var(--blue-alt)); border-radius: 22px; box-shadow: var(--shadow); }
.paper-type { display: flex; align-items: center; gap: .55rem; color: #f4d5e5; font-size: .72rem; font-weight: 800; letter-spacing: .07em; text-transform: uppercase; }
.paper-type .status-chip { margin-left: .35rem; color: #fbeaf3; background: rgba(207, 112, 162, .22); }
.paper-header h1 { max-width: 940px; margin: 1.1rem 0 .65rem; font-size: clamp(2rem, 5vw, 3.7rem); line-height: 1.08; letter-spacing: -.045em; text-wrap: balance; }
.subtitle { max-width: 850px; margin: 0 0 1rem; color: #cceaf5; font-size: 1.15rem; }
.detail-authors { margin: 1.25rem 0 .25rem; color: #eef9fc; font-size: 1rem; }
.detail-venue { margin: .1rem 0 0; color: #b8e1f1; font-size: .88rem; font-style: italic; }
.paper-actions { margin-top: 2rem; display: flex; flex-wrap: wrap; gap: .65rem; }
.paper-actions .button-secondary { color: white; background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.22); }
.paper-actions .button-secondary:hover { background: rgba(255,255,255,.13); }
.paper-actions .button-disabled { color: #9cd8f7; background: rgba(255,255,255,.04); border-color: rgba(255,255,255,.1); }
.paper-layout { padding-top: 1.4rem; display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 1.4rem; align-items: start; }
.paper-section, .paper-facts { padding: clamp(1.5rem, 3vw, 2.2rem); background: white; border: 1px solid var(--line); border-radius: var(--radius); }
.paper-section + .paper-section { margin-top: 1rem; }
.paper-section h2, .paper-facts h2 { margin: 0 0 1.1rem; font-size: .85rem; letter-spacing: .08em; text-transform: uppercase; }
.abstract { margin: 0; color: #334f59; line-height: 1.8; }
.muted-section p { margin: 0; color: var(--muted); font-style: italic; }
.keyword-list { display: flex; flex-wrap: wrap; gap: .45rem; }
.keyword-list span { padding: .32rem .62rem; color: var(--blue-dark); background: var(--blue-pale); border-radius: 100px; font-size: .74rem; font-weight: 650; }
.keyword-list span:nth-child(2n) { color: #7f4263; background: var(--pink-soft); }
.paper-facts { position: sticky; top: 1rem; }
.paper-facts dl { margin: 0; }
.paper-facts dl div { padding: .78rem 0; }
.paper-facts dl div + div { border-top: 1px solid var(--line); }
.paper-facts dt { color: var(--muted); font-size: .68rem; font-weight: 750; letter-spacing: .04em; text-transform: uppercase; }
.paper-facts dd { margin: .16rem 0 0; color: #294b58; font-size: .84rem; overflow-wrap: anywhere; }
.section-title-row { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.copy-button { display: flex; align-items: center; gap: .35rem; padding: .35rem .55rem; color: var(--blue); background: var(--blue-pale); border: 0; border-radius: 7px; cursor: pointer; font-size: .7rem; font-weight: 700; }
pre { max-height: 420px; margin: 0; padding: 1.2rem; overflow: auto; color: #e5f6fc; background: #004f6d; border-radius: 11px; font: .78rem/1.65 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; white-space: pre-wrap; }

footer { min-height: 180px; padding: 3rem clamp(1.25rem, 8vw, 8rem); display: flex; align-items: center; justify-content: space-between; gap: 3rem; color: #e2f4fa; background: var(--blue-dark); }
footer strong { color: white; }
footer p { margin: .25rem 0 0; color: #b8e1f1; font-size: .78rem; }

@media (max-width: 1000px) {
  .hero { grid-template-columns: 1fr; }
  .hero-copy { max-width: 780px; }
  .hero-logo { width: min(100%, 520px); }
}

@media (max-width: 760px) {
  .site-header { min-height: 68px; }
  .brand small, .site-header nav a:nth-child(-n+2) { display: none; }
  .hero { min-height: 0; padding-top: 4.5rem; padding-bottom: 5.5rem; }
  .stats { grid-template-columns: 1fr; padding: .4rem 1.2rem; }
  .stats div { padding: .8rem 0; flex-direction: row; align-items: baseline; gap: .65rem; }
  .stats div + div { border-left: 0; border-top: 1px solid var(--line); }
  .stats strong { font-size: 1.35rem; }
  .section-heading { align-items: flex-start; flex-direction: column; gap: 1rem; }
  .about-grid, .services-grid { grid-template-columns: 1fr; }
  .service-card:first-child ul { columns: 1; }
  .people-grid { grid-template-columns: 1fr; }
  .filters { grid-template-columns: 1fr 1fr; }
  .search-field { grid-column: 1 / -1; }
  .filters select { min-width: 0; }
  .publication-card { grid-template-columns: 1fr 34px; gap: .8rem; padding: 1.2rem; }
  .card-year { grid-column: 1 / -1; padding: 0 0 .75rem; flex-direction: row; align-items: baseline; justify-content: flex-start; gap: .6rem; border-right: 0; border-bottom: 1px solid var(--line); }
  .card-year span { font-size: 1.05rem; }
  .card-year small { max-width: none; }
  .card-heading { display: block; }
  .card-heading .status-chip { margin-top: .45rem; }
  .paper-layout { grid-template-columns: 1fr; }
  .paper-facts { position: static; }
  footer { align-items: flex-start; flex-direction: column; gap: 1rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}