:root {
  --bg: #f7f5ef; --card: #ffffff; --ink: #1d2a22; --muted: #5b6b61; --line: #e3e0d6;
  --brand: #2d6a4f; --brand-ink: #ffffff; --accent: #a8701b;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #111814; --card: #18221c; --ink: #e8efe9; --muted: #9db0a4; --line: #2a3a30; --brand: #52b788; --brand-ink: #0d1a12; --accent: #e0a94a; color-scheme: dark; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--brand); }
.wrap { max-width: 920px; margin: 0 auto; padding: 0 16px; }
header.top { border-bottom: 1px solid var(--line); background: var(--card); }
header.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 64px; flex-wrap: wrap; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--ink); text-decoration: none; }
.logo i { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 10px; background: var(--brand); color: var(--brand-ink); font-style: normal; }
nav a { margin-left: 16px; text-decoration: none; color: var(--muted); font-size: 15px; }
.hero { padding: 56px 0 40px; }
.hero h1 { font-size: clamp(28px, 5vw, 42px); line-height: 1.15; margin: 0 0 12px; }
.hero p { color: var(--muted); font-size: 18px; max-width: 620px; margin: 0 0 24px; }
.tag { display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; color: var(--accent); margin-bottom: 10px; }
.btns { display: flex; gap: 12px; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 20px; border-radius: 10px; font-weight: 600; text-decoration: none; border: 1px solid var(--line); color: var(--ink); background: var(--card); }
.btn.pri { background: var(--brand); border-color: var(--brand); color: var(--brand-ink); }
section { padding: 32px 0; }
h2 { font-size: 24px; margin: 0 0 16px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 20px; }
.card h3 { margin: 0 0 6px; font-size: 17px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
footer { border-top: 1px solid var(--line); background: var(--card); margin-top: 32px; padding: 28px 0; font-size: 14px; color: var(--muted); }
footer .grid { gap: 20px; }
footer b { color: var(--ink); }
.doc h1 { font-size: 30px; margin: 40px 0 8px; }
.doc h2 { font-size: 20px; margin: 28px 0 8px; }
.doc p, .doc li { color: var(--ink); }
.doc .muted { color: var(--muted); }