:root{color-scheme:light dark;--bg:#f7f7f5;--ink:#1b1c1e;--muted:#5d6066;--line:#dcdcd8;--panel:#ffffff;--accent:#2f6f8f}
@media(prefers-color-scheme:dark){:root{--bg:#121315;--ink:#f1f1f2;--muted:#a4a7ad;--line:#2c2e33;--panel:#1b1c1f}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:18px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif}
a{color:var(--accent);text-underline-offset:4px}header,main,footer{max-width:980px;margin:auto;padding:26px 28px}
header{display:flex;justify-content:space-between;align-items:center;gap:20px;border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:12px;font-size:20px;font-weight:650;color:var(--ink);text-decoration:none}.brand img{width:44px;height:44px}
nav{display:flex;gap:22px;font-size:15px}nav a{color:var(--ink)}main{padding-top:56px;padding-bottom:72px}
h1{font-size:clamp(34px,6vw,56px);line-height:1.08;letter-spacing:-1.5px;margin:0 0 22px;max-width:760px}h2{font-size:23px;line-height:1.3;margin:34px 0 10px}
p{max-width:720px;margin:0 0 18px}.lead{font-size:22px;line-height:1.5;color:var(--muted);max-width:680px}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:44px 0}.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:20px}
.card h2{margin:0 0 8px;font-size:19px}.card p{font-size:16px;color:var(--muted);margin:0}.small{font-size:15px;color:var(--muted)}
footer{border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:20px;font-size:14px;color:var(--muted)}
@media(max-width:700px){header,main,footer{padding-left:18px;padding-right:18px}header{flex-direction:column;align-items:flex-start}.cards{grid-template-columns:1fr}footer{flex-direction:column}}