:root {
  --bg: #0a0d14;
  --card: #121826;
  --line: rgb(148 163 184 / 0.14);
  --text: #f1f5f9;
  --muted: #94a3b8;
  --dim: #64748b;
  --a1: #a78bfa;
  --a2: #22d3ee;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: Manrope, system-ui, sans-serif; background: var(--bg); color: var(--text); line-height: 1.7; }
a { color: var(--a2); }
.wrap { max-width: 780px; margin: 0 auto; padding: 0 20px; }
header { border-bottom: 1px solid var(--line); }
header .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; max-width: 1080px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 18px; color: var(--text); text-decoration: none; }
nav { display: flex; gap: 22px; font-size: 14px; }
nav a { color: var(--muted); text-decoration: none; }
nav a:hover, nav a[aria-current="page"] { color: var(--text); }
main { padding: 56px 0 80px; }
h1 { font-size: clamp(30px, 5vw, 40px); line-height: 1.15; margin: 0; font-weight: 800; letter-spacing: -0.01em; }
.meta { color: var(--dim); font-size: 14px; margin: 12px 0 0; }
.intro { color: var(--muted); font-size: 17px; margin: 28px 0 0; }
h2 { font-size: 20px; margin: 44px 0 10px; }
h3 { font-size: 16px; margin: 24px 0 6px; }
p, li { color: var(--muted); }
ul { padding-left: 22px; }
li { margin: 6px 0; }
strong { color: var(--text); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 22px 24px; margin-top: 44px; }
.card p { margin: 4px 0; }
footer { border-top: 1px solid var(--line); padding: 28px 0; color: var(--dim); font-size: 13px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 10px 18px; justify-content: space-between; max-width: 1080px; }
footer a { color: var(--dim); text-decoration: none; }
footer a:hover { color: var(--text); }
@media (max-width: 640px) { nav { display: none; } main { padding: 40px 0 60px; } }