:root {
  --ink: #1a1d21; --muted: #6b7280; --bg: #fafaf8; --panel: #ffffff; --line: #e5e7eb;
  --accent: #0f766e; --accent-ink: #ffffff;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e7e9ee; --muted: #9aa1ac; --bg: #16181d; --panel: #1d2026; --line: #2a2e36;
    --accent: #5eead4; --accent-ink: #0b1f1c;
  }
}
* { margin: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg); color: var(--ink);
  font: 17px/1.6 -apple-system, "SF Pro Text", "Segoe UI", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

header.site, footer.site, main { max-width: 42rem; margin: 0 auto; padding: 0 1.25rem; }
header.site {
  display: flex; align-items: baseline; justify-content: space-between; gap: 1rem;
  padding-top: 1.5rem; padding-bottom: 1.5rem; flex-wrap: wrap;
}
.brand { color: var(--ink); font-weight: 600; letter-spacing: -.01em; }
.brand span { color: var(--muted); font-weight: 400; }
header nav { display: flex; gap: 1.1rem; font-size: .95rem; }
header nav a { color: var(--muted); }
header nav a:hover { color: var(--ink); text-decoration: none; }

section { padding: 2.5rem 0; border-top: 1px solid var(--line); }
section.hero { border-top: 0; padding-top: 3rem; padding-bottom: 3rem; }
.eyebrow { color: var(--muted); font-size: .85rem; text-transform: uppercase; letter-spacing: .08em; margin-bottom: .75rem; }
h1 { font-size: 2.2rem; line-height: 1.15; letter-spacing: -.02em; margin-bottom: 1rem; }
h2 { font-size: 1.35rem; letter-spacing: -.01em; margin-bottom: 1rem; }
h3 { font-size: 1.1rem; margin-bottom: .5rem; }
h3.sub { margin-top: 2rem; }
.lede { font-size: 1.15rem; color: var(--ink); max-width: 36rem; }
p { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }
.muted { color: var(--muted); font-size: .95rem; }
.cta { display: flex; gap: 1.25rem; align-items: center; flex-wrap: wrap; margin-top: 1.5rem; }
.button {
  display: inline-block; background: var(--accent); color: var(--accent-ink);
  padding: .6rem 1.1rem; border-radius: .5rem; font-weight: 600;
}
.button:hover { text-decoration: none; filter: brightness(1.05); }
.quiet { color: var(--muted); }

.card {
  background: var(--panel); border: 1px solid var(--line); border-radius: .75rem;
  padding: 1.5rem; margin: 1.5rem 0;
}
.badge {
  display: inline-block; font-size: .72rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: .06em; color: var(--accent); border: 1px solid currentColor;
  border-radius: 999px; padding: .1rem .55rem; vertical-align: middle; margin-left: .4rem;
}
ul.facts, ul.principles { padding-left: 1.2rem; margin: 0 0 1rem; }
ul.facts li { margin: .25rem 0; }
ul.principles { list-style: none; padding: 0; }
ul.principles li { padding: .5rem 0; border-top: 1px solid var(--line); }
ul.principles li:first-child { border-top: 0; }
ul.principles b { font-weight: 600; }

dl.contact { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem 2rem; margin-bottom: 1.25rem; }
dl.contact dt { color: var(--muted); font-size: .85rem; text-transform: uppercase; letter-spacing: .06em; margin-bottom: .2rem; }
dl.contact dd { margin: 0; }
@media (max-width: 480px) { dl.contact { grid-template-columns: 1fr; } h1 { font-size: 1.85rem; } }

footer.site { border-top: 1px solid var(--line); padding-top: 1.5rem; padding-bottom: 3rem; color: var(--muted); font-size: .85rem; }
footer.site p { margin-bottom: .35rem; }