:root {
  --bg: #090d16;
  --panel: #111827;
  --text: #d8dee9;
  --muted: #8b97aa;
  --line: #263244;
  --accent: #7dd3fc;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background:
    radial-gradient(circle at top, rgba(125, 211, 252, .12), transparent 35%),
    var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a { color: inherit; }

.topbar {
  min-height: 72px;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  background: rgba(9, 13, 22, .72);
  backdrop-filter: blur(10px);
}

.logo {
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

nav {
  display: flex;
  gap: 18px;
}

nav a {
  color: var(--muted);
  text-decoration: none;
}

nav a:hover { color: var(--text); }

.hero {
  min-height: calc(100vh - 132px);
  display: flex;
  align-items: center;
  padding: 48px 32px;
  max-width: 960px;
  margin: 0 auto;
}

.eyebrow {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: .2em;
  font-size: 13px;
}

h1 {
  font-size: clamp(42px, 9vw, 96px);
  line-height: 1;
  margin: 12px 0 20px;
}

.lead {
  max-width: 640px;
  color: var(--muted);
  font-size: 20px;
  line-height: 1.6;
}

.buttons {
  margin-top: 32px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.button {
  display: inline-block;
  padding: 12px 18px;
  border: 1px solid var(--accent);
  border-radius: 12px;
  text-decoration: none;
  color: #06121f;
  background: var(--accent);
  font-weight: 700;
}

.button.secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--line);
}

.content {
  max-width: 860px;
  margin: 0 auto;
  padding: 56px 32px;
}

.content h1 { font-size: 48px; }

.card {
  background: rgba(17, 24, 39, .75);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 22px;
  margin: 18px 0;
}

.ok {
  color: #86efac;
  font-weight: 700;
}

pre {
  overflow: auto;
  background: #050814;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px;
}

footer {
  min-height: 60px;
  padding: 20px 32px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}