:root {
  --bg: #0b1020;
  --bg2: #0d1427;
  --card: #121933;
  --line: #26304f;
  --text: #ecf1ff;
  --muted: #a6b2d9;
  --accent: #7aa2ff;
  --accent2: #91c1ff;
  --max: 980px;
  --radius: 18px;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: Inter, Segoe UI, Arial, sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg2) 100%);
  line-height: 1.65;
}
a { color: var(--accent2); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 28px 20px 80px; }
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  gap: 16px; margin-bottom: 24px;
}
.brand { font-size: 18px; font-weight: 700; color: var(--text); }
.nav { display: flex; gap: 14px; flex-wrap: wrap; }
.hero, .card, .page, .note {
  background: rgba(18, 25, 51, 0.88);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 18px 45px rgba(0,0,0,0.22);
}
.hero { padding: 28px; margin-bottom: 24px; }
.hero h1 { margin: 0 0 10px; font-size: 40px; line-height: 1.08; }
.hero p { margin: 0; color: var(--muted); font-size: 18px; }
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
}
.card { padding: 20px; }
.card h2, .page h1, .note h1 { margin-top: 0; }
.card p, .card li, .page p, .page li, .note p, .note li { color: var(--muted); }
.page, .note { padding: 26px; }
.note-meta { color: var(--muted); font-size: 14px; margin-bottom: 18px; }
.list { display: grid; gap: 14px; }
.item {
  padding: 16px 18px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(9, 14, 29, 0.55);
}
.footer { margin-top: 28px; color: var(--muted); font-size: 14px; }