:root{--bg:#fff;--fg:#1d2733;--muted:#5b6673;--line:#dde3ea;--acc:#1f5f8b}
@media (prefers-color-scheme:dark){:root{--bg:#14181d;--fg:#e8edf2;--muted:#9aa6b2;--line:#2a323b;--acc:#7ab8e6}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.55 system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif}
.wrap{max-width:760px;margin:0 auto;padding:0 16px}
header{border-bottom:1px solid var(--line)}
header .wrap{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px;padding-top:14px;padding-bottom:14px}
.logo{font-weight:700;font-size:22px;letter-spacing:.06em;color:var(--fg);text-decoration:none}
nav a{margin-left:16px;color:var(--acc);text-decoration:none}
h1{font-size:30px;line-height:1.2;margin:36px 0 8px}
h2{font-size:21px;margin:32px 0 10px}
p{margin:0 0 14px}
.lead{color:var(--muted);font-size:19px}
ul.sections{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:10px}
ul.sections a{display:block;padding:12px 14px;border:1px solid var(--line);border-radius:8px;color:var(--acc);text-decoration:none}
ul.sections a:hover{border-color:var(--acc)}
a{color:var(--acc)}
.contacts{border:1px solid var(--line);border-radius:10px;padding:16px 18px}
.contacts p{margin:0 0 8px}
footer{margin-top:48px;border-top:1px solid var(--line);color:var(--muted);font-size:14px}
footer .wrap{padding-top:16px;padding-bottom:28px}