:root {
  --bg: #faf8f4;
  --ink: #22252b;
  --muted: #6a6f78;
  --accent: #3f6b5b;
  --card: #ffffff;
  --line: #e6e2d9;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #17191c;
    --ink: #eceae4;
    --muted: #9aa0a8;
    --accent: #8fc2ae;
    --card: #202327;
    --line: #2e3237;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.65;
}
a { color: var(--accent); }
.wrap { max-width: 880px; margin: 0 auto; padding: 0 20px; }
header { padding: 22px 0; border-bottom: 1px solid var(--line); }
header .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; }
.logo { font-weight: 700; font-size: 1.25rem; letter-spacing: -0.01em; color: var(--ink); text-decoration: none; }
.logo span { color: var(--accent); }
nav { display: flex; flex-wrap: wrap; gap: 6px 18px; }
nav a { color: var(--muted); text-decoration: none; font-size: 0.95rem; }
nav a:hover, nav a[aria-current="page"] { color: var(--accent); }
.hero { padding: 64px 0 48px; }
.hero h1 {
  font-size: clamp(2rem, 6vw, 3.1rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 18px;
  max-width: 16em;
}
.hero p { font-size: 1.15rem; color: var(--muted); max-width: 34em; margin: 0 0 28px; }
.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
}
@media (prefers-color-scheme: dark) { .btn { color: #10211a; } }
h2 { font-size: 1.4rem; letter-spacing: -0.01em; margin: 0 0 18px; }
h3 { margin: 0 0 6px; font-size: 1.05rem; }
.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px;
}
.card p { margin: 0; color: var(--muted); font-size: 0.95rem; }
.tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 999px;
  padding: 1px 9px;
  margin-bottom: 10px;
}
section { padding: 24px 0 36px; }
.principles { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.principles div { border-left: 3px solid var(--accent); padding-left: 14px; }
.principles strong { display: block; margin-bottom: 4px; }
.principles span { color: var(--muted); font-size: 0.95rem; }
.page { padding: 48px 0 24px; }
.page h1 { font-size: clamp(1.8rem, 5vw, 2.4rem); letter-spacing: -0.02em; margin: 0 0 8px; }
.page .lead { color: var(--muted); font-size: 1.1rem; margin: 0 0 32px; max-width: 38em; }
.page h2 { margin-top: 36px; font-size: 1.2rem; }
.page p, .page li { max-width: 42em; }
.page ul { padding-left: 1.2em; }
.meta { color: var(--muted); font-size: 0.9rem; }
table.facts { border-collapse: collapse; margin: 8px 0 0; }
table.facts td { padding: 6px 18px 6px 0; vertical-align: top; }
table.facts td:first-child { color: var(--muted); white-space: nowrap; }
details { border-bottom: 1px solid var(--line); padding: 12px 0; max-width: 42em; }
summary { cursor: pointer; font-weight: 600; }
details p { margin: 10px 0 0; color: var(--muted); }
footer {
  border-top: 1px solid var(--line);
  margin-top: 32px;
  padding: 28px 0 48px;
  color: var(--muted);
  font-size: 0.9rem;
}
footer p { margin: 0 0 6px; }
footer nav { margin-bottom: 14px; }
.note { font-size: 0.85rem; margin-top: 14px; }