:root {
  color-scheme: light;
  --ink: #1e2726;
  --muted: #5f6d69;
  --paper: #fbfaf7;
  --band: #eef3ef;
  --line: #cfd8d2;
  --accent: #236c67;
  --accent-dark: #174d49;
  --gold: #c59a45;
  --white: #ffffff;
}

* {
  box-sizing: border-box;
}

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

a {
  color: var(--accent-dark);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(20px, 5vw, 72px);
  border-bottom: 1px solid var(--line);
  background: rgba(251, 250, 247, 0.96);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--white);
  font-size: 0.78rem;
  letter-spacing: 0;
}

nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 14px;
  font-size: 0.95rem;
}

nav a {
  color: var(--muted);
  text-decoration: none;
}

nav a:hover {
  color: var(--accent-dark);
}

main {
  min-height: 72vh;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.7fr);
  align-items: center;
  gap: clamp(28px, 6vw, 80px);
  padding: clamp(56px, 8vw, 104px) clamp(20px, 5vw, 72px) clamp(44px, 7vw, 84px);
  background:
    linear-gradient(90deg, rgba(35, 108, 103, 0.1), transparent 46%),
    var(--paper);
}

.hero h1,
.page-title h1 {
  margin: 0;
  font-size: clamp(3rem, 8vw, 6.5rem);
  line-height: 0.95;
  letter-spacing: 0;
}

.lede,
.page-title p {
  max-width: 720px;
  font-size: clamp(1.15rem, 2vw, 1.45rem);
  color: var(--muted);
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent-dark);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 18px;
  border: 1px solid var(--accent);
  border-radius: 6px;
  background: var(--accent);
  color: var(--white);
  font-weight: 700;
  text-decoration: none;
}

.button.secondary {
  background: transparent;
  color: var(--accent-dark);
}

.identity-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
  background: var(--white);
  box-shadow: 0 16px 40px rgba(30, 39, 38, 0.08);
}

.profile-symbol {
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  max-width: 260px;
  margin: 0 auto 24px;
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(35, 108, 103, 0.2), rgba(197, 154, 69, 0.2)),
    var(--band);
  border: 1px solid var(--line);
}

.profile-symbol span {
  display: grid;
  place-items: center;
  width: 52%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--accent-dark);
  color: var(--white);
  font-size: clamp(2rem, 6vw, 4rem);
  font-weight: 700;
}

dl {
  margin: 0;
}

dl div {
  padding: 14px 0;
  border-top: 1px solid var(--line);
}

dt {
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 700;
  text-transform: uppercase;
}

dd {
  margin: 4px 0 0;
}

.content-band,
.link-grid,
.page-title {
  padding: clamp(38px, 6vw, 76px) clamp(20px, 5vw, 72px);
}

.content-band {
  display: grid;
  grid-template-columns: minmax(180px, 0.45fr) minmax(0, 1fr);
  gap: clamp(24px, 6vw, 76px);
  background: var(--band);
}

.section-heading h2,
.link-grid h2 {
  margin: 0;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  line-height: 1.1;
}

.prose {
  max-width: 780px;
  font-size: 1.05rem;
}

.prose p:first-child {
  margin-top: 0;
}

.link-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.link-grid article {
  min-height: 220px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.link-grid p {
  color: var(--muted);
}

.reference-grid {
  align-items: stretch;
}

.reference-grid article {
  min-height: 250px;
}

.reference-meta {
  margin: 10px 0;
  color: var(--accent-dark) !important;
  font-size: 0.9rem;
  font-weight: 700;
}

footer {
  padding: 24px clamp(20px, 5vw, 72px);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.92rem;
}

@media (max-width: 760px) {
  .site-header,
  .hero,
  .content-band,
  .link-grid {
    grid-template-columns: 1fr;
  }

  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  nav {
    justify-content: flex-start;
  }

  .hero h1,
  .page-title h1 {
    font-size: clamp(2.8rem, 18vw, 4.6rem);
  }
}