:root {
  --paper: #f4f1ec;
  --card: #fffdf9;
  --ink: #0b1f3a;
  --muted: #5d6d80;
  --signal: #c74320;
  --line: rgba(11, 31, 58, 0.14);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.7 Arial, sans-serif;
}

main {
  width: min(760px, calc(100% - 32px));
  margin: 32px auto 64px;
  padding: 32px clamp(22px, 6vw, 56px) 48px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

a { color: var(--signal); }
nav a { font-size: 14px; font-weight: 700; text-decoration: none; }
h1 { margin: 32px 0 4px; font-size: clamp(32px, 7vw, 50px); line-height: 1.05; }
h2 { margin-top: 32px; line-height: 1.2; }
p, li { color: var(--muted); }
strong { color: var(--ink); }
.updated { margin-top: 0; font-size: 14px; }
.brand { color: var(--ink); font-weight: 700; letter-spacing: .04em; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.button {
  display: inline-block;
  padding: 10px 16px;
  border-radius: 999px;
  background: var(--ink);
  color: white;
  font-weight: 700;
  text-decoration: none;
}

@media (max-width: 540px) {
  main { margin-top: 16px; padding: 24px 20px 40px; border-radius: 16px; }
}