:root {
  --bg: #080808;
  --card: #141414;
  --text: #f5f5f5;
  --muted: #b6b6b6;
  --yellow: #ffd400;
  --line: #2a2a2a;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.65;
}
header {
  border-bottom: 1px solid var(--line);
  background: #000;
}
.wrap {
  width: min(920px, calc(100% - 36px));
  margin: 0 auto;
}
.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 22px 0;
}
.logo {
  width: 58px;
  height: 58px;
  border: 4px solid var(--yellow);
  border-radius: 16px;
  display: grid;
  place-items: center;
  font-weight: 900;
  font-size: 34px;
  color: white;
}
.brand h1 {
  margin: 0;
  font-size: 24px;
}
.brand p {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 14px;
}
main { padding: 42px 0 70px; }
article {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: clamp(24px, 5vw, 48px);
}
h1, h2, h3 { line-height: 1.25; }
h1 { font-size: clamp(30px, 5vw, 46px); }
h2 {
  margin-top: 34px;
  font-size: 23px;
  color: var(--yellow);
}
h3 { margin-top: 24px; font-size: 18px; }
p, li { color: #e2e2e2; }
.notice {
  background: #211c00;
  border-left: 5px solid var(--yellow);
  padding: 14px 16px;
  border-radius: 8px;
}
.meta { color: var(--muted); }
a { color: var(--yellow); }
nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  padding-bottom: 18px;
}
nav a {
  text-decoration: none;
  font-weight: 700;
}
footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  padding: 24px 0 38px;
  font-size: 14px;
}
code {
  background: #242424;
  border-radius: 5px;
  padding: 2px 6px;
}