:root {
  --void: #000408;
  --surface: #001028;
  --pearl: #0099ff;
  --pearl-bright: #40b0ff;
  --ice: #c0d8f0;
  --muted: #7a9cc0;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--void); color: var(--ice); }
body {
  font: 16px/1.6 "Segoe UI Variable", "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
  padding: 32px 16px 64px;
}
main { max-width: 720px; margin: 0 auto; }
header { margin-bottom: 32px; }
.brand { font-weight: 800; letter-spacing: 0.14em; text-transform: uppercase; color: var(--pearl-bright); font-size: 14px; }
h1 { font-size: 30px; line-height: 1.2; margin: 8px 0 4px; color: #fff; letter-spacing: 0.01em; }
h2 { font-size: 19px; margin: 32px 0 8px; color: #fff; }
p, li { color: var(--ice); }
.muted { color: var(--muted); font-size: 14px; }
a { color: var(--pearl-bright); text-underline-offset: 3px; }
a:focus-visible { outline: 2px solid var(--pearl-bright); outline-offset: 3px; border-radius: 2px; }
.card { background: var(--surface); border: 1px solid rgba(0, 153, 255, 0.25); border-radius: 14px; padding: 16px 20px; margin: 16px 0; }
ul { padding-left: 22px; }
table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid rgba(0, 153, 255, 0.18); vertical-align: top; }
th { color: #fff; font-weight: 600; }
.table-wrap { overflow-x: auto; }
footer { margin-top: 48px; color: var(--muted); font-size: 14px; }