:root {
  color-scheme: light;
  --ink: #17202a;
  --muted: #5c6773;
  --line: #dfe4e8;
  --paper: #ffffff;
  --soft: #f3f7f8;
  --accent: #087f8c;
  --accent-dark: #055b65;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--paper);
  color: var(--ink);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background: var(--paper);
  line-height: 1.65;
}

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

.site-header,
footer {
  width: min(1080px, calc(100% - 40px));
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.site-header {
  min-height: 76px;
  border-bottom: 1px solid var(--line);
}

.brand {
  color: var(--ink);
  font-weight: 750;
  text-decoration: none;
}

nav { display: flex; gap: 24px; }
nav a { color: var(--muted); text-decoration: none; }
nav a[aria-current="page"] { color: var(--ink); font-weight: 650; }

.hero,
.document {
  width: min(820px, calc(100% - 40px));
  margin: 0 auto;
}

.hero { padding: 104px 0 88px; }
.document { padding: 72px 0 88px; }

.eyebrow {
  margin: 0 0 16px;
  color: var(--accent-dark);
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0;
}

h1 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(2.35rem, 7vw, 4.7rem);
  line-height: 1.04;
  letter-spacing: 0;
}

.document h1 { font-size: clamp(2.2rem, 6vw, 4rem); }
h2 { margin: 44px 0 8px; font-size: 1.25rem; letter-spacing: 0; }
p { color: var(--muted); }
.lead { max-width: 720px; margin: 24px 0 0; font-size: 1.18rem; }

.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
.primary,
.secondary {
  display: inline-flex;
  align-items: center;
  min-height: 46px;
  padding: 10px 18px;
  border: 1px solid var(--accent);
  border-radius: 6px;
  font-weight: 650;
  text-decoration: none;
}
.primary { background: var(--accent); color: white; }
.primary:hover { background: var(--accent-dark); }
.secondary { color: var(--accent-dark); background: white; }
.inline-action { margin-top: 8px; }

.principles {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--soft);
}

.principles article { padding: 36px max(24px, 4vw); }
.principles article + article { border-left: 1px solid var(--line); }
.principles h2 { margin-top: 0; }

footer {
  min-height: 88px;
  color: var(--muted);
  font-size: 0.88rem;
}

@media (max-width: 700px) {
  .site-header { min-height: 68px; }
  nav { gap: 16px; }
  .hero { padding: 72px 0 64px; }
  .document { padding: 56px 0 68px; }
  .principles { grid-template-columns: 1fr; }
  .principles article + article { border-left: 0; border-top: 1px solid var(--line); }
  footer { align-items: flex-start; flex-direction: column; justify-content: center; gap: 4px; }
}