:root {
  --bg: #0f1115;
  --surface: #181b21;
  --surface-2: #20242b;
  --primary: #b9ff5a;
  --text: #f4f7fb;
  --muted: #a4acb9;
  --border: rgba(255,255,255,.09);
  --max: 900px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  background:
    radial-gradient(circle at 85% 10%, rgba(185,255,90,.08), transparent 35%),
    var(--bg);
  color: var(--text);
  line-height: 1.65;
}
a { color: var(--primary); }
.wrap { width: min(calc(100% - 40px), var(--max)); margin: 0 auto; }
nav {
  position: sticky; top: 0; z-index: 10;
  background: rgba(15,17,21,.88);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
nav .wrap {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 68px;
}
.brand { display: flex; align-items: center; gap: 12px; font-weight: 800; }
.brand img { width: 38px; height: 38px; border-radius: 10px; }
.links { display: flex; gap: 20px; font-size: 14px; }
.links a { color: var(--muted); text-decoration: none; }
.links a:hover { color: var(--text); }
.hero { padding: 88px 0 60px; text-align: center; }
.hero img {
  width: 150px; height: 150px; border-radius: 34px;
  box-shadow: 0 24px 80px rgba(0,0,0,.45);
}
h1 { font-size: clamp(38px, 7vw, 70px); margin: 24px 0 8px; line-height: 1.05; }
.tagline { color: var(--primary); font-size: 20px; font-weight: 700; }
.lead {
  max-width: 690px; margin: 20px auto 0;
  font-size: 18px; color: var(--muted);
}
.actions { margin-top: 28px; display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }
.button {
  display: inline-flex; padding: 12px 18px; border-radius: 12px;
  text-decoration: none; font-weight: 700;
  background: var(--primary); color: #101418;
}
.button.secondary { background: var(--surface-2); color: var(--text); border: 1px solid var(--border); }
section { padding: 34px 0; }
.card {
  background: linear-gradient(145deg, rgba(32,36,43,.96), rgba(24,27,33,.96));
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 28px;
  margin: 18px 0;
}
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.feature h3 { margin-top: 0; }
.feature p { color: var(--muted); margin-bottom: 0; }
h2 { font-size: 30px; margin: 0 0 16px; }
h3 { margin-top: 28px; }
p, li { color: #d7dce4; }
.muted { color: var(--muted); }
footer {
  margin-top: 48px; padding: 30px 0 50px;
  border-top: 1px solid var(--border);
  color: var(--muted); font-size: 14px;
}
.meta { color: var(--muted); font-size: 14px; margin-bottom: 28px; }
@media (max-width: 720px) {
  .links { gap: 12px; font-size: 13px; }
  .grid { grid-template-columns: 1fr; }
  .hero { padding-top: 62px; }
}