:root {
  --bg: #0b0d12;
  --text: #e8eefc;
  --muted: #a9b4d0;
  --card: #121826;
  --line: rgba(255,255,255,.08);
  --accent: #5b8cff;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.container { width: min(1000px, calc(100% - 32px)); margin: 0 auto; }

.header { border-bottom: 1px solid var(--line); }
.header__inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 0; }
.logo { font-weight: 800; letter-spacing: .2px; }
.nav a { color: var(--muted); text-decoration: none; margin-left: 14px; }
.nav a:hover { color: var(--text); }

.hero { padding: 48px 0 28px; }
h1 { margin: 0 0 10px; font-size: 42px; line-height: 1.1; }
.lead { color: var(--muted); font-size: 18px; max-width: 720px; }

.actions { margin-top: 18px; display: flex; gap: 10px; flex-wrap: wrap; }
.btn {
  display: inline-block;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--text);
  text-decoration: none;
}
.btn--primary { background: var(--accent); border-color: transparent; }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; padding: 18px 0 48px; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px;
}
.card h3 { margin: 0 0 8px; }

.footer { border-top: 1px solid var(--line); }
.footer__inner { padding: 18px 0; color: var(--muted); font-size: 14px; }

@media (max-width: 850px) {
  .grid { grid-template-columns: 1fr; }
  h1 { font-size: 34px; }
}

.muted { color: var(--muted); }

.card--link {
  display: block;
  color: inherit;
  text-decoration: none;
}
.card--link:hover {
  border-color: rgba(255,255,255,.18);
}

.grid--1 { grid-template-columns: 1fr; }

h2 { margin: 0 0 12px; font-size: 26px; }