:root {
  --bg: #07111f;
  --card: #0d1b2a;
  --text: #f4f8fc;
  --muted: #a9bdd0;
  --accent: #31a7ff;
  --line: rgba(255,255,255,.12);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: linear-gradient(180deg, #06101c 0%, #0a1727 100%);
  color: var(--text);
  line-height: 1.65;
}
.wrap { width: min(960px, calc(100% - 32px)); margin: 0 auto; }
header {
  border-bottom: 1px solid var(--line);
  background: rgba(7,17,31,.88);
  backdrop-filter: blur(12px);
  position: sticky; top: 0; z-index: 10;
}
nav {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand { display:flex; align-items:center; gap:12px; font-weight:800; letter-spacing:.02em; }
.brand img { width:46px; height:46px; border-radius:50%; object-fit:cover; }
nav a { color:var(--text); text-decoration:none; margin-left:20px; }
nav a:hover { color:var(--accent); }
.hero { padding: 80px 0 56px; text-align:center; }
.hero img { width:min(260px, 60vw); border-radius:50%; box-shadow:0 24px 80px rgba(0,0,0,.35); }
h1 { font-size:clamp(2.1rem, 6vw, 4rem); margin:.7rem 0 .4rem; line-height:1.05; }
h2 { margin-top:0; font-size:1.6rem; }
.lead { max-width:680px; margin:0 auto; color:var(--muted); font-size:1.08rem; }
.grid { display:grid; grid-template-columns:repeat(3,1fr); gap:18px; padding:18px 0 64px; }
.card {
  background:rgba(13,27,42,.9);
  border:1px solid var(--line);
  border-radius:18px;
  padding:24px;
}
.card p { color:var(--muted); }
.btn {
  display:inline-block; margin-top:18px; padding:11px 18px;
  background:var(--accent); color:#00111d; border-radius:10px;
  font-weight:800; text-decoration:none;
}
main.article { padding:56px 0 70px; }
.article .card { max-width:820px; margin:0 auto; }
.article h1 { font-size:clamp(2rem, 5vw, 3.25rem); }
.article h2 { margin-top:30px; }
.article p, .article li { color:#d7e3ee; }
footer { border-top:1px solid var(--line); color:var(--muted); padding:28px 0 40px; text-align:center; }
footer a { color:var(--muted); margin:0 8px; }
@media (max-width:760px) {
  nav { align-items:flex-start; padding:14px 0; flex-direction:column; }
  nav .links { display:flex; gap:14px; flex-wrap:wrap; }
  nav a { margin-left:0; }
  .grid { grid-template-columns:1fr; }
  .hero { padding-top:50px; }
}