/* OHii — Oral Health Innovation Institute
   Brand: teal #028090, navy #1E2761, near-black #1A1A2E, Calibri/Carlito */

:root {
  --teal: #028090;
  --teal-dark: #026873;
  --navy: #1E2761;
  --ink: #1A1A2E;
  --paper: #FFFFFF;
  --mist: #F2F6F7;
  --line: #DDE5E7;
  --muted: #5A6472;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}

body {
  font-family: Carlito, Calibri, "Segoe UI", -apple-system, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  font-size: 17px;
}

a { color: var(--teal-dark); }
a:focus-visible, button:focus-visible {
  outline: 3px solid var(--teal);
  outline-offset: 2px;
}

.wrap { max-width: 1040px; margin: 0 auto; padding: 0 24px; }

/* Header */
header.site {
  border-bottom: 1px solid var(--line);
  padding: 20px 0;
  background: var(--paper);
}
header.site .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
header.site img.logo { height: 64px; width: auto; display: block; }
nav.top a {
  color: var(--navy);
  text-decoration: none;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.02em;
  margin-left: 22px;
}
nav.top a:hover { color: var(--teal-dark); }

/* Hero */
.hero { padding: 88px 0 72px; position: relative; }
.hero .tagline {
  color: var(--teal-dark);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 18px;
}
.hero h1 {
  color: var(--navy);
  font-size: 46px;
  font-size: clamp(34px, 5vw, 54px);
  line-height: 1.12;
  font-weight: 700;
  max-width: 18ch;
  margin-bottom: 22px;
}
.hero p.lede {
  font-size: 20px;
  color: var(--muted);
  max-width: 58ch;
}
/* signature: the "closing gap" rule — two bars that nearly meet */
.gap-rule { display: flex; align-items: center; gap: 10px; margin: 34px 0 0; }
.gap-rule span { height: 4px; border-radius: 2px; }
.gap-rule .a { width: 120px; background: var(--navy); }
.gap-rule .b { width: 46px; background: var(--teal); }

/* Sections */
section { padding: 64px 0; }
section.alt { background: var(--mist); }
.eyebrow {
  color: var(--teal-dark);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
h2 {
  color: var(--navy);
  font-size: 30px;
  line-height: 1.2;
  margin-bottom: 18px;
}
section p { max-width: 68ch; margin-bottom: 14px; }

/* Pillars */
.pillars { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; margin-top: 30px; }
.pillar {
  background: var(--paper);
  border: 1px solid var(--line);
  border-top: 5px solid var(--teal);
  border-radius: 8px;
  padding: 26px 26px 22px;
}
.pillar.navy { border-top-color: var(--navy); }
.pillar h3 { color: var(--navy); font-size: 20px; margin-bottom: 4px; }
.pillar .sub { color: var(--teal-dark); font-weight: 700; font-size: 14px; letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 12px; }
.pillar p { font-size: 16px; margin: 0; }

/* Partners */
.partners { display: flex; align-items: center; justify-content: center; gap: clamp(28px, 6vw, 72px); flex-wrap: wrap; margin-top: 34px; }
.partners img { max-height: 74px; width: auto; margin: 12px 20px; }
.partners .textmark { margin: 12px 20px; }
.partners .textmark {
  color: var(--navy);
  font-weight: 700;
  font-size: 22px;
  letter-spacing: 0.03em;
}
.partners-note { text-align: center; color: var(--muted); font-size: 14px; margin-top: 26px; }

/* Contact */
.contact-card {
  background: var(--navy);
  color: #fff;
  border-radius: 10px;
  padding: 40px clamp(24px, 5vw, 56px);
  display: flex;
  justify-content: space-between;
  gap: 28px;
  flex-wrap: wrap;
}
.contact-card h2 { color: #fff; margin-bottom: 8px; }
.contact-card p { color: #D8DEF0; margin: 0 0 6px; }
.contact-card a { color: #7FD6DF; font-weight: 700; text-decoration: none; font-size: 19px; }
.contact-card a:hover { text-decoration: underline; }

/* Footer */
footer.site { border-top: 1px solid var(--line); padding: 28px 0 40px; font-size: 14px; color: var(--muted); }
footer.site .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
footer.site a { color: var(--muted); text-decoration: none; margin-right: 18px; }
footer.site a:hover { color: var(--teal-dark); text-decoration: underline; }

/* Policy pages */
.policy { padding: 56px 0 72px; }
.policy h1 { color: var(--navy); font-size: 34px; margin-bottom: 8px; }
.policy .updated { color: var(--muted); font-size: 14px; margin-bottom: 30px; }
.policy h2 { font-size: 21px; margin: 30px 0 10px; }
.policy ul { margin: 0 0 14px 22px; }
.policy li { margin-bottom: 6px; }
.policy table { border-collapse: collapse; margin: 14px 0 20px; width: 100%; max-width: 560px; }
.policy th, .policy td { border: 1px solid var(--line); padding: 10px 14px; text-align: left; font-size: 16px; }
.policy th { background: var(--mist); color: var(--navy); }

@media (max-width: 720px) {
  .pillars { grid-template-columns: 1fr; }
  .hero { padding: 56px 0 48px; }
  header.site img.logo { height: 52px; }
}