/* No web fonts, no analytics, no third-party anything — the privacy policy
   says this site collects nothing, and that has to be true of the markup as
   much as of the server. */
:root {
    --ink: #16181d;
    --muted: #5b6069;
    --line: #e3e6ea;
    --bg: #ffffff;
    --panel: #f7f8fa;
    --accent: #1f4fd8;
}

@media (prefers-color-scheme: dark) {
    :root {
        --ink: #e9ecf1;
        --muted: #a2a9b4;
        --line: #2a2f38;
        --bg: #121419;
        --panel: #191d24;
        --accent: #7ea2ff;
    }
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

.wrap { max-width: 46rem; margin: 0 auto; padding: 0 1.25rem; }

header.site {
    border-bottom: 1px solid var(--line);
    padding: 1.1rem 0;
}

header.site .wrap { display: flex; align-items: baseline; gap: 1.25rem; flex-wrap: wrap; }
header.site strong { font-size: 1.15rem; letter-spacing: -0.01em; }
header.site nav { margin-left: auto; display: flex; gap: 1.1rem; flex-wrap: wrap; }

a { color: var(--accent); }
header.site nav a, footer a { color: var(--muted); text-decoration: none; }
header.site nav a:hover, footer a:hover { color: var(--ink); text-decoration: underline; }

h1 { font-size: 2.1rem; line-height: 1.2; letter-spacing: -0.02em; margin: 2.5rem 0 0.75rem; }
h2 { font-size: 1.3rem; margin: 2.25rem 0 0.6rem; letter-spacing: -0.01em; }
h3 { font-size: 1.05rem; margin: 1.5rem 0 0.4rem; }
p, li { color: var(--ink); }
.lead { font-size: 1.15rem; color: var(--muted); }

.panel {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 1.1rem 1.25rem;
    margin: 1.5rem 0;
}

.panel h3 { margin-top: 0; }

table { border-collapse: collapse; width: 100%; margin: 1.25rem 0; }
th, td { text-align: left; padding: 0.55rem 0.6rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 0.9rem; }

code { background: var(--panel); border: 1px solid var(--line); border-radius: 4px; padding: 0.1rem 0.35rem; font-size: 0.9em; }

.note { color: var(--muted); font-size: 0.92rem; }

footer {
    border-top: 1px solid var(--line);
    margin-top: 3.5rem;
    padding: 1.5rem 0 3rem;
    color: var(--muted);
    font-size: 0.92rem;
}

footer nav { display: flex; gap: 1.1rem; flex-wrap: wrap; margin-bottom: 0.5rem; }