:root {
  --navy: #00263e;
  --steel: #68a2b9;
  --text: #00263e;
  --muted: #666;
  --bg: #fff;
  --max: 1080px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Montserrat', Helvetica, Arial, sans-serif;
  font-size: 14px;
  line-height: 1.7;
}

img { max-width: 100%; height: auto; display: block; }

a { color: #000; }

h1, h2, h3, h4, h5 { color: var(--navy); font-weight: 700; line-height: 1.25; margin: 0 0 .5em; }
h1 { font-size: 40px; }
h2 { font-size: 34px; }
h5 { font-size: 21px; }

.container { width: 80%; max-width: var(--max); margin: 0 auto; }

/* Header */
.site-header {
  border-top: 15px solid var(--navy);
  padding: 30px 0 20px;
  text-align: center;
  background: #fff;
}
.site-header .logo img { margin: 0 auto; max-height: 116px; width: auto; }

.nav-toggle {
  display: none;
  margin: 16px auto 0;
  background: none;
  border: 2px solid var(--navy);
  border-radius: 4px;
  color: var(--navy);
  font: inherit;
  font-size: 14px;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 6px 16px;
  cursor: pointer;
}

.site-nav ul {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}
.site-nav li { padding: 0 11px; border-right: 2px solid var(--steel); line-height: 1; }
.site-nav li:last-child { border-right: none; }
.site-nav a {
  color: var(--navy);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: clamp(14px, 1.4vw, 18px);
  white-space: nowrap;
}
.site-nav a:hover { opacity: .7; }
.site-nav a[aria-current="page"] { color: #000; }

/* Main */
main { padding: 54px 0; }

.hero-band { background: linear-gradient(to bottom, #fff 0 15%, var(--steel) 15% 85%, #fff 85%); }
.hero-band img { margin: 0 auto; width: 100%; max-width: 784px; }

.welcome { text-align: left; }
.welcome h2 { text-align: center; margin-bottom: 0; }
.welcome h2:last-of-type { margin-bottom: 1em; }

.page-intro { margin-bottom: 30px; }

/* About */
.bio { display: grid; grid-template-columns: 235px 1fr; gap: 40px; margin-bottom: 50px; align-items: start; }
.bio img { width: 235px; border: 6px solid #3a6b85; }
.bio p { margin: 0 0 1em; }

/* Lists */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.two-col ul { margin: 0 0 1.5em; padding-left: 1.2em; }

/* Contact */
.contact-card { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.contact-card dl { margin: 0; }
.contact-card dt { font-weight: 700; margin-top: 1em; }
.contact-card dt:first-child { margin-top: 0; }
.contact-card dd { margin: 0; }
.contact-card a { color: var(--navy); }

.privacy h3 { font-size: 24px; margin-top: 1.5em; }

/* Footer */
.affiliations { padding: 30px 0; }
.affiliations .container { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.affiliations img { margin: 0 auto; max-height: 160px; width: auto; }

.footer-info { background: var(--navy); color: #fff; padding: 35px 0; }
.footer-info .container { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.footer-info a { color: #fff; }

.footer-legal { background: var(--navy); border-top: 1px solid #777; text-align: center; padding: 18px 0; font-size: 13px; }
.footer-legal a { color: #a5a5a5; text-decoration: none; }

@media (max-width: 980px) {
  .container { width: auto; margin: 0 16px; }
  .nav-toggle { display: inline-block; }
  .site-nav ul { display: none; flex-direction: column; margin-top: 12px; }
  .site-nav.open ul { display: flex; }
  .site-nav li { border-right: none; padding: 10px 0; border-top: 1px solid #eee; }
  .site-nav a { font-size: 16px; }
}

@media (max-width: 700px) {
  h1 { font-size: 30px; }
  h2 { font-size: 24px; }
  .bio, .two-col, .contact-card, .affiliations .container, .footer-info .container { grid-template-columns: 1fr; gap: 20px; }
  .bio img { margin: 0 auto; }
}