:root { --bg: #ffffff; --text: #1a1a1a; --muted: #6b6b6b; --line: #e5e5e5; --accent: #2b6de8; --mark: #fff3bf; }
@media (prefers-color-scheme: dark) {
  :root { --bg: #141414; --text: #ececec; --muted: #9a9a9a; --line: #2c2c2c; --accent: #6fa0ff; --mark: #4a3f10; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
main { max-width: 760px; margin: 0 auto; padding: 32px 16px 64px; }
nav { display: flex; flex-wrap: wrap; gap: 8px 16px; font-size: 14px; margin-bottom: 24px; }
nav a { color: var(--accent); text-decoration: none; }
nav a[aria-current] { color: var(--text); font-weight: 600; }
h1 { font-size: 26px; line-height: 1.25; margin: 0 0 4px; }
h2 { font-size: 18px; margin: 32px 0 8px; padding-top: 16px; border-top: 1px solid var(--line); }
.meta { color: var(--muted); font-size: 14px; margin: 0 0 24px; }
p, li { margin: 0 0 8px; }
ol, ul { padding-left: 24px; }
a { color: var(--accent); }
/* Placeholders the operator must fill in before launch. */
.fill { background: var(--mark); padding: 0 4px; border-radius: 3px; }
.card { border: 1px solid var(--line); border-radius: 12px; padding: 16px; margin: 16px 0; }
table { width: 100%; border-collapse: collapse; font-size: 15px; margin: 8px 0 16px; }
th, td { text-align: left; vertical-align: top; padding: 8px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 500; }
@media (max-width: 520px) { table, tbody, tr, td, th { display: block; } thead { display: none; } td { border: 0; padding: 2px 0; } tr { padding: 8px 0; border-bottom: 1px solid var(--line); } }