:root {
  --ink: #152535;
  --muted: #596a78;
  --paper: #fbfcfa;
  --mist: #eaf0ef;
  --line: #d5e0df;
  --teal: #0d5d60;
  --navy: #123047;
  --gold: #d9ad5e;
  --serif: "Libre Baskerville", Georgia, serif;
  --sans: "DM Sans", Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  line-height: 1.6;
}

a { color: inherit; }

.site-header, .site-footer, main > section { padding-inline: clamp(1.25rem, 5vw, 5.5rem); }

.site-header {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}

.brand { display: inline-flex; align-items: center; gap: .65rem; font-weight: 700; text-decoration: none; letter-spacing: .04em; }
.brand-mark { display: grid; width: 30px; height: 30px; place-items: center; border: 2px solid currentColor; border-radius: 50%; font-family: var(--serif); }

nav { display: flex; gap: clamp(.8rem, 2vw, 2rem); font-size: .9rem; }
nav a { color: var(--muted); text-decoration: none; }
nav a:hover, .research-list a:hover { color: var(--teal); }

.hero { padding-top: clamp(5rem, 12vw, 10rem); padding-bottom: clamp(4.5rem, 10vw, 8rem); max-width: 1000px; }
.eyebrow { margin: 0 0 .8rem; color: var(--teal); font-size: .72rem; font-weight: 700; letter-spacing: .15em; text-transform: uppercase; }
h1, h2, h3 { font-family: var(--serif); line-height: 1.25; }
h1 { max-width: 780px; margin: 0; font-size: clamp(2.35rem, 6vw, 5.1rem); letter-spacing: -.055em; }
h2 { max-width: 760px; margin: 0; font-size: clamp(1.7rem, 3.5vw, 3rem); letter-spacing: -.035em; }
h3 { margin: 0 0 .75rem; font-size: 1.18rem; }
.hero-copy { max-width: 690px; margin: 1.8rem 0 2rem; color: var(--muted); font-size: clamp(1.02rem, 1.5vw, 1.25rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: .75rem; }
.button { display: inline-flex; align-items: center; gap: .8rem; padding: .8rem 1.05rem; border: 1px solid transparent; border-radius: 3px; font-size: .92rem; font-weight: 700; text-decoration: none; }
.button-primary { color: white; background: var(--teal); }
.button-primary:hover { background: #084b4e; }
.button-secondary { border-color: var(--line); }
.button-secondary:hover { background: var(--mist); }

.quick-links { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #f4f7f5; }
.quick-link { display: grid; grid-template-columns: auto 1fr auto; gap: 1rem; align-items: start; min-height: 160px; padding: 1.8rem; color: inherit; text-decoration: none; }
.quick-link + .quick-link { border-left: 1px solid var(--line); }
.quick-link:hover { background: #edf4f1; }
.quick-link strong, .quick-link small { display: block; }
.quick-link strong { margin-bottom: .35rem; }
.quick-link small { color: var(--muted); line-height: 1.45; }
.quick-link-icon { color: var(--gold); font-weight: 700; font-size: .8rem; }

.section { padding-top: clamp(4rem, 9vw, 7rem); padding-bottom: clamp(4rem, 9vw, 7rem); }
.section-heading { margin-bottom: 2.5rem; }
.about { background: #fff; }
.about-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, .9fr); gap: clamp(2rem, 6vw, 6rem); max-width: 1080px; }
.about-grid > p { margin: 0; color: var(--muted); font-size: 1.1rem; }
.registration-card { margin: 0; padding: 1.3rem 1.5rem; background: var(--mist); border-left: 3px solid var(--teal); }
.registration-card div + div { margin-top: 1rem; padding-top: 1rem; border-top: 1px solid #cfddda; }
dt { color: var(--muted); font-size: .78rem; font-weight: 700; text-transform: uppercase; letter-spacing: .07em; }
dd { margin: .2rem 0 0; font-size: .95rem; }

.research-section { background: var(--navy); color: white; }
.research-section .eyebrow { color: #b8dcce; }
.split-heading { display: grid; grid-template-columns: 1.2fr .8fr; gap: 2rem; align-items: end; }
.split-heading > p { margin: 0; color: #bdccd5; }
.research-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; margin: 0; padding: 0; list-style: none; counter-reset: research; }
.research-list li { position: relative; padding: 1.5rem; border: 1px solid #375168; counter-increment: research; }
.research-list li::before { content: "0" counter(research); display: block; margin-bottom: 2rem; color: var(--gold); font-weight: 700; font-size: .8rem; }
.research-list p:not(.research-type) { color: #c7d1d8; font-size: .92rem; }
.research-type { color: #b8dcce; font-size: .72rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.research-list a { color: white; font-size: .88rem; font-weight: 700; text-decoration: none; }

.people-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 1rem; }
.person { min-height: 220px; padding: 1.4rem; border: 1px solid var(--line); background: #fff; }
.person-lead { background: var(--mist); border-top: 4px solid var(--teal); }
.person-initials { display: grid; width: 42px; height: 42px; place-items: center; margin-bottom: 2rem; color: var(--teal); border: 1px solid currentColor; border-radius: 50%; font-size: .8rem; font-weight: 700; }
.person p { color: var(--muted); font-size: .87rem; line-height: 1.45; }

.connect { display: flex; align-items: center; justify-content: space-between; gap: 2rem; padding-top: 3.5rem; padding-bottom: 3.5rem; color: white; background: var(--teal); }
.connect .eyebrow { color: #d3e7df; }
.connect h2 { font-size: clamp(1.45rem, 3vw, 2.3rem); }
.button-light { color: var(--ink); background: white; white-space: nowrap; }

.site-footer { display: grid; grid-template-columns: auto 1fr auto; gap: 1.5rem; align-items: center; padding-top: 1.8rem; padding-bottom: 1.8rem; color: var(--muted); font-size: .8rem; }
.site-footer p { margin: 0; }
.site-footer .brand { color: var(--ink); }

@media (max-width: 900px) {
  .quick-links, .research-list, .people-grid { grid-template-columns: repeat(2, 1fr); }
  .quick-link + .quick-link { border-left: 0; }
  .quick-link:nth-child(2) { border-left: 1px solid var(--line); }
  .quick-link:nth-child(3) { border-top: 1px solid var(--line); }
  .split-heading { grid-template-columns: 1fr; }
  .site-footer { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .site-header { min-height: 68px; }
  nav a:not(:last-child) { display: none; }
  .quick-links, .research-list, .people-grid, .about-grid { grid-template-columns: 1fr; }
  .quick-link + .quick-link, .quick-link:nth-child(2), .quick-link:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .quick-link:first-child { border-top: 0; }
  .connect { align-items: flex-start; flex-direction: column; }
  .button-light { white-space: normal; }
}