/* Shared styles for the static SP 800-22 guide pages (no JavaScript, no external CSS). */
:root {
  --text: #1f2937;
  --muted: #4b5563;
  --line: #e5e7eb;
  --accent: #2563eb;
  --accent-dark: #1d4ed8;
  --soft: #eff6ff;
  --code-bg: #f3f4f6;
  --page: #f9fafb;
  --card: #ffffff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--page);
  color: var(--text);
  font: 17px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

a { color: var(--accent); }
a:hover { color: var(--accent-dark); }

.site-header, .site-footer { background: var(--card); border-bottom: 1px solid var(--line); }
.site-footer { border-top: 1px solid var(--line); border-bottom: 0; margin-top: 48px; }
.bar { max-width: 860px; margin: 0 auto; padding: 14px 16px; display: flex; flex-wrap: wrap; gap: 12px 20px; align-items: center; justify-content: space-between; }
.brand { font-weight: 700; color: var(--text); text-decoration: none; letter-spacing: 0.02em; }
.nav { display: flex; flex-wrap: wrap; gap: 16px; font-size: 15px; }
.nav a { color: var(--muted); text-decoration: none; }
.nav a:hover { color: var(--text); }
.site-footer .bar { font-size: 14px; color: var(--muted); }

main { max-width: 860px; margin: 0 auto; padding: 32px 16px 0; }
article { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 32px; }
@media (max-width: 640px) { article { padding: 20px; } }

.crumbs { font-size: 14px; color: var(--muted); margin-bottom: 12px; }
h1 { font-size: 2rem; line-height: 1.25; margin: 0 0 12px; }
h2 { font-size: 1.4rem; line-height: 1.3; margin: 36px 0 12px; }
h3 { font-size: 1.1rem; margin: 24px 0 8px; }
.lead { font-size: 1.1rem; color: var(--muted); margin-top: 0; }
.meta { font-size: 14px; color: var(--muted); }

code, pre { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.9em; }
code { background: var(--code-bg); padding: 1px 5px; border-radius: 4px; }
pre { background: #111827; color: #f9fafb; padding: 16px; border-radius: 8px; overflow-x: auto; line-height: 1.5; }
pre code { background: none; padding: 0; color: inherit; }

.table-wrap { overflow-x: auto; margin: 16px 0; }
table { border-collapse: collapse; width: 100%; font-size: 15px; }
th, td { border-bottom: 1px solid var(--line); padding: 8px 10px; text-align: left; vertical-align: top; }
th { background: var(--code-bg); font-weight: 600; }
td.num, th.num { text-align: right; white-space: nowrap; }

.note { background: var(--soft); border-left: 4px solid var(--accent); padding: 12px 16px; border-radius: 6px; margin: 20px 0; }
.warn { background: #fffbeb; border-left: 4px solid #d97706; padding: 12px 16px; border-radius: 6px; margin: 20px 0; }

.cta { margin: 32px 0 8px; padding: 20px; border: 2px solid var(--accent); border-radius: 12px; background: var(--soft); }
.cta p { margin: 0 0 12px; }
.button { display: inline-block; background: var(--accent); color: #fff; text-decoration: none; padding: 10px 18px; border-radius: 8px; font-weight: 600; }
.button:hover { background: var(--accent-dark); color: #fff; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; margin-top: 24px; }
.card { display: block; border: 1px solid var(--line); border-radius: 10px; padding: 16px; text-decoration: none; color: var(--text); background: var(--card); }
.card:hover { border-color: var(--accent); }
.card strong { display: block; margin-bottom: 4px; color: var(--accent); }
.card span { font-size: 15px; color: var(--muted); }

.related { margin-top: 32px; padding-top: 16px; border-top: 1px solid var(--line); font-size: 15px; }
.disclaimer { font-size: 13px; color: var(--muted); margin-top: 24px; }