:root { --bg:#f6f7fb; --card:#fff; --text:#15171c; --muted:#5b606b; --line:rgba(20,22,28,.09); --accent:#2f5bea; color-scheme: light; }
@media (prefers-color-scheme: dark) { :root { --bg:#12141b; --card:#1b1e27; --text:#f0f1f4; --muted:#a3a7b1; --line:rgba(255,255,255,.08); --accent:#7c9dff; color-scheme: dark; } }
* { box-sizing: border-box; }
body { margin:0; background:var(--bg); color:var(--text); font:17px/1.6 "Segoe UI Variable Text","Segoe UI",system-ui,-apple-system,sans-serif; -webkit-font-smoothing:antialiased; }
a { color:var(--accent); }
.wrap { max-width: 920px; margin: 0 auto; padding: 0 24px; }
header { padding: 28px 0; }
header .wrap { display:flex; align-items:center; justify-content:space-between; }
.brand { display:flex; align-items:center; gap:10px; font-weight:600; font-size:19px; text-decoration:none; color:inherit; }
.brand img { width:34px; height:34px; }
nav a { margin-left: 22px; color: var(--muted); text-decoration:none; font-size:15px; }
nav a:hover { color: var(--text); }
.hero { padding: 56px 0 24px; text-align:center; }
.hero h1 { font-size: clamp(36px, 6vw, 60px); line-height:1.08; letter-spacing:-.02em; margin:0 0 18px; }
.hero p { color:var(--muted); font-size: 20px; max-width: 640px; margin: 0 auto 30px; }
.cta { display:inline-block; background:var(--accent); color:#fff; padding:13px 26px; border-radius:10px; font-weight:600; text-decoration:none; }
.shot { margin: 44px auto 0; border-radius: 16px; overflow:hidden; box-shadow: 0 30px 70px rgba(20,30,70,.18); border:1px solid var(--line); }
.shot img { display:block; width:100%; height:auto; }
.grid { display:grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; padding: 56px 0; }
.card { background:var(--card); border:1px solid var(--line); border-radius:14px; padding: 20px 22px; }
.card h3 { margin:0 0 6px; font-size:17px; }
.card p { margin:0; color:var(--muted); font-size:15px; }
.doc { background:var(--card); border:1px solid var(--line); border-radius:16px; padding: 36px 40px; margin: 12px 0 56px; }
.doc h1 { margin-top:0; font-size: 34px; letter-spacing:-.01em; }
.doc h2 { font-size: 20px; margin-top: 30px; }
.doc p, .doc li { color: var(--text); }
.muted { color: var(--muted); }
footer { border-top:1px solid var(--line); padding: 26px 0 40px; color:var(--muted); font-size:14px; }
footer .wrap { display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px; }
@media (max-width: 600px) { .doc { padding: 24px 20px; } nav a { margin-left: 14px; } }