:root{--bg:#050D10;--card:#0E1A1D;--ink:#F1FBF7;--muted:#93AEAA;--violet:#1FC8A8;--violet-light:#7FEBC3;--line:#21383B}
*{box-sizing:border-box}
body{margin:0;background:var(--bg) radial-gradient(ellipse 120% 60% at 50% -10%,rgba(31,200,168,.24),transparent 60%) no-repeat;color:var(--ink);font:16px/1.6 -apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Roboto,sans-serif;min-height:100vh}
main{max-width:720px;margin:0 auto;padding:56px 20px 80px}
a{color:var(--violet-light)}
header{display:flex;align-items:center;gap:14px;margin-bottom:36px}
header img{width:56px;height:56px;border-radius:14px;border:1px solid var(--line);box-shadow:0 0 24px rgba(31,200,168,.35)}
header a{text-decoration:none;color:var(--ink);font-weight:700;font-size:20px}
h1{font-size:34px;line-height:1.15;margin:0 0 8px}
h2{font-size:19px;margin:34px 0 8px}
p,li{color:#D7DAE6}
.muted{color:var(--muted);font-size:14px}
.card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:20px 22px;margin:18px 0}
.button{display:inline-block;background:linear-gradient(90deg,#2FCF8C,#16AFA0,#2A85D0);color:#fff;text-decoration:none;font-weight:600;padding:13px 22px;border-radius:14px}
nav{margin-top:44px;display:flex;gap:18px;flex-wrap:wrap}