:root {
  --primary: #14397a;
  --primary-dark: #0f2c5e;
  --text: #0f1e3a;
  --text-light: #4a5a78;
  --muted: #6a7a96;
  --bg-soft: #f3f6fc;
  --border: #e3eaf6;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text);
  line-height: 1.65;
  background: #fff;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); }
.container { max-width: 820px; margin: 0 auto; padding: 0 24px; }
header.site {
  border-bottom: 1px solid var(--border);
  background: #fff;
}
.nav { display: flex; align-items: center; justify-content: space-between; padding: 18px 0; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; color: var(--primary); }
.logo-mark { width: 38px; height: 38px; background: var(--primary); border-radius: 8px; display: grid; place-items: center; color: #fff; }
.logo-text { font-size: 14px; letter-spacing: 1px; line-height: 1; }
.logo-text small { display: block; font-size: 10px; font-weight: 600; color: var(--text-light); letter-spacing: 2px; margin-top: 2px; }
.back-home { font-size: 13px; color: var(--primary); text-decoration: none; font-weight: 500; }
.back-home:hover { text-decoration: underline; }
main {
  padding: 60px 0 80px;
}
h1 {
  font-size: 36px;
  color: var(--primary);
  font-weight: 800;
  margin-bottom: 8px;
  letter-spacing: -0.5px;
}
.lead {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 36px;
}
h2 {
  font-size: 20px;
  color: var(--primary);
  font-weight: 700;
  margin-top: 36px;
  margin-bottom: 12px;
}
h3 {
  font-size: 16px;
  color: var(--primary-dark);
  font-weight: 700;
  margin-top: 22px;
  margin-bottom: 8px;
}
p, ul, ol {
  margin-bottom: 14px;
  color: var(--text);
  font-size: 15px;
}
ul, ol { padding-left: 24px; }
li { margin-bottom: 6px; }
.box {
  background: var(--bg-soft);
  border-radius: 10px;
  padding: 18px 22px;
  margin: 20px 0;
  font-size: 14px;
}
hr { border: 0; border-top: 1px solid var(--border); margin: 24px 0; }
.small { font-size: 13px; color: var(--muted); }
footer {
  background: var(--primary);
  color: #cfdaf0;
  padding: 30px 0;
  font-size: 13px;
  text-align: center;
}
footer a { color: #fff; }
footer .row { display: flex; justify-content: center; gap: 18px; flex-wrap: wrap; margin-bottom: 8px; }