:root {
  --bg: #09121d;
  --panel: rgba(15, 25, 40, 0.84);
  --panel-border: rgba(145, 184, 216, 0.18);
  --text: #eef5fb;
  --muted: #b7c8d8;
  --accent: #78d9ff;
  --accent-2: #0fc8b5;
  --warm: #f3ca73;
  --font: "IBM Plex Sans", "Avenir Next", "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(37, 132, 255, 0.22), transparent 28%),
    radial-gradient(circle at top right, rgba(16, 200, 181, 0.18), transparent 24%),
    linear-gradient(180deg, #07111b 0%, #0d1724 45%, #111c2a 100%);
}
a { color: inherit; }
main { width: min(920px, calc(100% - 32px)); margin: 0 auto; padding: 32px 0 80px; }
header { display: flex; justify-content: space-between; gap: 16px; align-items: center; margin-bottom: 26px; }
header img { width: 42px; height: 42px; }
header .brand { display: flex; gap: 12px; align-items: center; text-decoration: none; }
header strong { display: block; font-size: 15px; }
header span { color: var(--muted); font-size: 13px; }
nav a { text-decoration: none; color: var(--muted); margin-left: 16px; }
section {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 28px;
  padding: 28px;
  margin-bottom: 18px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.18);
}
.eyebrow {
  display: inline-block;
  margin-bottom: 10px;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}
h1, h2, h3, p { margin: 0; }
h1 { font-size: clamp(2rem, 5vw, 3.3rem); line-height: 1.02; }
h2 { font-size: 1.35rem; margin-bottom: 12px; }
p, li { color: var(--muted); line-height: 1.75; }
ul { margin: 14px 0 0; padding-left: 20px; }
.card-grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); margin-top: 18px; }
.card { padding: 18px; border: 1px solid rgba(145, 184, 216, 0.14); border-radius: 20px; background: rgba(255,255,255,0.03); }
.card strong { display: block; margin-bottom: 8px; }
.footer { color: var(--muted); font-size: 13px; text-align: center; margin-top: 18px; }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid rgba(120, 217, 255, 0.18);
  background: rgba(120, 217, 255, 0.08);
  font-size: 12px;
  color: var(--accent);
}
@media (max-width: 720px) {
  header { flex-direction: column; align-items: flex-start; }
  nav a { margin: 0 12px 0 0; }
}