:root{
  --bg:#0f1115;
  --panel:#161a21;
  --text:#e7e9ee;
  --muted:#9aa3b2;
  --line:#242a34;
  --accent:#7cc4a4;
}
@media (prefers-color-scheme: light){
  :root{--bg:#f7f8fa;--panel:#ffffff;--text:#15181d;--muted:#5b6472;--line:#e2e6ec;--accent:#1f7a58;}
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text);
  font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Ubuntu,"Helvetica Neue",Arial,sans-serif;
}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.site-header{
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  max-width:960px;margin:0 auto;padding:22px 24px;border-bottom:1px solid var(--line);
}
.brand{display:inline-flex;align-items:center;gap:9px;font-weight:600;color:var(--text);letter-spacing:.01em}
.brand svg{color:var(--accent)}
.site-header nav{display:flex;gap:20px;font-size:15px}
.site-header nav a{color:var(--muted)}
.site-header nav a:hover{color:var(--text)}
main{max-width:960px;margin:0 auto;padding:56px 24px 72px}
.hero{max-width:640px}
h1{font-size:clamp(28px,4.4vw,42px);line-height:1.15;margin:0 0 18px;letter-spacing:-.02em}
h2{font-size:17px;margin:0 0 8px;letter-spacing:.01em}
.lead{font-size:18px;color:var(--muted);margin:0}
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));margin:48px 0 0}
.grid article{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:20px}
.grid article p{margin:0;color:var(--muted);font-size:15px}
.note{margin-top:40px;max-width:660px}
.note p{color:var(--muted);margin:0 0 20px}
footer{
  max-width:960px;margin:0 auto;padding:22px 24px 40px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:var(--muted);font-size:14px;
}