:root {
  --csu-green: #1e4d2b;
  --csu-green-dark: #12351d;
  --csu-green-light: #dce8df;
  --csu-gold: #c8c372;
  --cream: #f7f5ef;
  --ink: #17201a;
  --muted: #5c685f;
  --white: #ffffff;
  --line: #d8ded9;
  --shadow: 0 18px 45px rgba(22, 51, 31, 0.12);
  --radius: 22px;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--cream);
  line-height: 1.65;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
.container { width: min(calc(100% - 40px), var(--max)); margin-inline: auto; }
.eyebrow { font-size: .78rem; letter-spacing: .16em; text-transform: uppercase; font-weight: 800; color: var(--csu-green); }
.skip-link { position: absolute; left: -999px; top: 0; background: var(--white); padding: 10px; z-index: 50; }
.skip-link:focus { left: 12px; top: 12px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(30,77,43,.12);
  background: rgba(247,245,239,.92);
  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: 12px; text-decoration: none; font-weight: 800; }
.brand-mark { width: 38px; height: 38px; border-radius: 50%; display: grid; place-items: center; color: var(--white); background: var(--csu-green); font-family: Georgia, serif; }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { text-decoration: none; font-size: .94rem; font-weight: 700; color: var(--muted); }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--csu-green); }
.menu-button { display: none; background: none; border: 0; font-size: 1.6rem; color: var(--csu-green); }

.hero { padding: 90px 0 74px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.16fr .84fr; align-items: center; gap: 72px; }
h1, h2, h3 { font-family: Georgia, "Times New Roman", serif; line-height: 1.12; margin-top: 0; }
h1 { font-size: clamp(3rem, 7vw, 5.8rem); letter-spacing: -.045em; margin-bottom: 24px; }
h2 { font-size: clamp(2.2rem, 4.5vw, 3.7rem); letter-spacing: -.035em; }
h3 { font-size: 1.55rem; }
.lede { font-size: 1.18rem; color: var(--muted); max-width: 700px; }
.hero-actions, .button-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 9px; min-height: 48px; padding: 0 22px; border-radius: 999px; text-decoration: none; font-weight: 800; border: 1px solid var(--csu-green); transition: transform .18s ease, background .18s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--csu-green); color: var(--white); }
.button-secondary { color: var(--csu-green); background: transparent; }
.button-light { border-color: var(--white); color: var(--csu-green); background: var(--white); }

.portrait-frame { position: relative; width: min(100%, 430px); margin-inline: auto; }
.portrait-card { aspect-ratio: 4/5; border-radius: 210px 210px 28px 28px; overflow: hidden; box-shadow: var(--shadow); background: linear-gradient(145deg, #214e2d, #7f987f); border: 9px solid var(--white); }
.portrait-card img { width: 100%; height: 100%; object-fit: cover; }
.portrait-placeholder { height: 100%; display: grid; place-items: center; color: rgba(255,255,255,.95); text-align: center; padding: 30px; }
.portrait-placeholder strong { font-family: Georgia, serif; font-size: 5rem; display: block; }
.portrait-placeholder span { font-size: .85rem; letter-spacing: .08em; text-transform: uppercase; }
.portrait-accent { position: absolute; width: 120px; height: 120px; border: 2px solid var(--csu-gold); border-radius: 50%; right: -26px; bottom: 28px; z-index: -1; }

.affiliation-strip { background: var(--white); border-block: 1px solid var(--line); }
.affiliation-grid { min-height: 110px; display: grid; grid-template-columns: auto 1fr; gap: 28px; align-items: center; }
.affiliation-badge { width: 68px; height: 68px; border-radius: 16px; display: grid; place-items: center; color: white; background: var(--csu-green); font-family: Georgia, serif; font-weight: 800; font-size: 1.2rem; }
.affiliation-grid p { margin: 3px 0 0; color: var(--muted); }

.section { padding: 88px 0; }
.section-heading { max-width: 770px; margin-bottom: 38px; }
.section-heading p { color: var(--muted); font-size: 1.08rem; }
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.info-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; box-shadow: 0 10px 26px rgba(22,51,31,.055); }
.info-card p { color: var(--muted); margin-bottom: 0; }
.card-number { font-size: .82rem; font-weight: 900; color: var(--csu-green); margin-bottom: 26px; }

.feature { background: var(--csu-green-dark); color: var(--white); }
.feature-grid { display: grid; grid-template-columns: .95fr 1.05fr; gap: 56px; align-items: center; }
.research-visual { min-height: 420px; border-radius: var(--radius); overflow: hidden; background: var(--white); }
.research-visual img { width: 100%; height: 100%; object-fit: cover; }
.feature .eyebrow { color: var(--csu-gold); }
.feature p { color: rgba(255,255,255,.78); }
.meta { display: flex; gap: 14px; flex-wrap: wrap; margin: 22px 0; }
.tag { padding: 7px 11px; border-radius: 999px; background: rgba(255,255,255,.1); font-size: .78rem; font-weight: 750; }

.page-hero { padding: 84px 0 54px; }
.page-hero h1 { font-size: clamp(3rem, 7vw, 5.2rem); }
.research-list { display: grid; gap: 32px; }
.research-card { display: grid; grid-template-columns: .82fr 1.18fr; background: var(--white); border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); box-shadow: var(--shadow); }
.research-card-image { min-height: 390px; background: var(--csu-green-light); }
.research-card-image img { width: 100%; height: 100%; object-fit: cover; }
.research-card-image img[src$="resveratrol-cover.webp"] { object-fit: contain; padding: 18px; }
.cover-image-contain { object-fit: contain; }
.research-card-body { padding: clamp(30px, 5vw, 58px); align-self: center; }
.research-card-body p { color: var(--muted); }
.text-link { display: inline-flex; gap: 8px; align-items: center; color: var(--csu-green); font-weight: 850; text-decoration: none; }
.text-link:hover { text-decoration: underline; }

.article { padding: 40px 0 100px; }
.article-shell { display: grid; grid-template-columns: minmax(0, 760px) 240px; gap: 74px; align-items: start; }
.article-content { font-size: 1.07rem; }
.article-content h2 { font-size: 2.2rem; margin-top: 58px; }
.article-content p { color: #334037; }
.article-aside { position: sticky; top: 110px; padding: 22px; border-left: 3px solid var(--csu-gold); }
.publication-citation { padding: 18px 22px; background: var(--csu-green-light); border-left: 3px solid var(--csu-green); border-radius: 10px; font-size: .98rem; }
.article-aside p { margin: 4px 0 22px; color: var(--muted); font-size: .9rem; }

.contact-panel { border-radius: 34px; background: var(--csu-green); color: var(--white); padding: clamp(36px, 6vw, 78px); display: grid; grid-template-columns: 1fr auto; gap: 44px; align-items: center; }
.contact-panel p { color: rgba(255,255,255,.78); max-width: 680px; }
.contact-list { display: grid; gap: 16px; margin-top: 30px; }
.contact-item { display: flex; gap: 12px; align-items: flex-start; }
.contact-item strong { display: block; }

.site-footer { padding: 38px 0; border-top: 1px solid var(--line); color: var(--muted); font-size: .9rem; }
.footer-grid { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.footer-links { display: flex; gap: 18px; }
.footer-links a { text-decoration: none; }

.notice { padding: 14px 18px; background: #fff8d9; border: 1px solid #e9d985; border-radius: 12px; color: #5a4d14; font-size: .9rem; margin-top: 24px; }

@media (max-width: 860px) {
  .hero-grid, .feature-grid, .research-card, .article-shell, .contact-panel { grid-template-columns: 1fr; }
  .hero { padding-top: 58px; }
  .portrait-frame { margin-top: 18px; }
  .card-grid { grid-template-columns: 1fr; }
  .article-aside { position: static; }
  .contact-panel { gap: 16px; }
  .nav-links { display: none; position: absolute; top: 76px; inset-inline: 0; padding: 22px; background: var(--cream); border-bottom: 1px solid var(--line); flex-direction: column; align-items: flex-start; }
  .nav-links.open { display: flex; }
  .menu-button { display: block; }
}
@media (max-width: 540px) {
  .container { width: min(calc(100% - 26px), var(--max)); }
  .affiliation-grid { grid-template-columns: 1fr; padding: 24px 0; gap: 12px; }
  .research-card-image { min-height: 260px; }
  h1 { font-size: 3.2rem; }
}


/* Research affiliation navigation */
.affiliations-section { background: var(--white); border-block: 1px solid var(--line); }
.affiliation-card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.affiliation-card {
  min-width: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--csu-green);
  border: 1px solid rgba(30,77,43,.24);
  border-radius: var(--radius);
  text-decoration: none;
  box-shadow: 0 12px 30px rgba(22,51,31,.12);
  transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease;
}
.affiliation-card:hover,
.affiliation-card:focus-visible {
  transform: translateY(-7px);
  box-shadow: 0 22px 44px rgba(22,51,31,.20);
  border-color: rgba(30,77,43,.55);
}
.logo-panel {
  min-height: 205px;
  padding: 10px 14px;
  display: grid;
  place-items: center;
  overflow: hidden;
  background: #f5f2e8;
  border-bottom: 0;
}
.logo-panel img {
  width: 100%;
  height: 176px;
  object-fit: contain;
  transition: transform .35s ease;
}
.affiliation-card:hover .logo-panel img,
.affiliation-card:focus-visible .logo-panel img { transform: scale(1.035); }
.affiliation-card-copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  flex: 1;
  padding: 22px 24px 24px;
  background: var(--csu-green);
}
.affiliation-card-copy strong {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.55rem;
  line-height: 1.15;
  color: var(--white);
}
.affiliation-card-copy small {
  display: block;
  margin-top: 8px;
  color: rgba(255,255,255,.78);
  font-size: .94rem;
  line-height: 1.5;
}
.affiliation-card-copy .eyebrow { color: #d8e6d9; }
.card-arrow {
  margin-top: auto;
  padding-top: 18px;
  color: var(--white);
  font-weight: 850;
  font-size: .9rem;
  transition: transform .24s ease;
}
.affiliation-card:hover .card-arrow,
.affiliation-card:focus-visible .card-arrow { transform: translateX(5px); }
.affiliation-card-large .logo-panel { min-height: 270px; padding: 12px 16px; }
.affiliation-card-large .logo-panel img { height: 238px; }
.affiliation-card-large .affiliation-card-copy { padding: 24px 26px 27px; }
.affiliation-card-large .affiliation-card-copy .eyebrow { margin-bottom: 10px; }
.affiliation-card-grid-compact .logo-panel { min-height: 190px; padding: 8px 12px; }
.affiliation-card-grid-compact .logo-panel img { height: 164px; }

.lab-hero { padding: 78px 0 62px; background: linear-gradient(135deg, var(--cream), var(--csu-green-light)); border-bottom: 1px solid var(--line); }
.lab-hero-grid { display: grid; grid-template-columns: 1fr 310px; gap: 70px; align-items: center; }
.lab-hero h1 { font-size: clamp(3rem, 6vw, 5.2rem); margin-bottom: 20px; }
.lab-hero-logo { min-height: 220px; display: grid; place-items: center; padding: 30px; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.lab-hero-logo img { width: 100%; max-height: 150px; object-fit: contain; }
.back-link { display: block; width: fit-content; margin-bottom: 28px; color: var(--csu-green); font-weight: 800; text-decoration: none; }
.back-link:hover { text-decoration: underline; }
.empty-state { padding: clamp(30px, 5vw, 55px); background: var(--white); border: 1px dashed #afbbb1; border-radius: var(--radius); }
.empty-state h3 { margin: 8px 0 12px; }
.empty-state p { color: var(--muted); margin-bottom: 0; }
.tag-light { background: #e8f0ea; color: var(--csu-green); }

@media (max-width: 860px) {
  .affiliation-card-grid, .lab-hero-grid { grid-template-columns: 1fr; }
  .lab-hero-logo { max-width: 420px; width: 100%; }
}