:root {
    --bg: #0f1115;
    --fg: #e5e7eb;
    --muted: #8b8f99;
    --accent: #4fb3ff;
    --line: #1f222a;
    --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
body {
    margin: 0;
    background: var(--bg);
    color: var(--fg);
    font: 15px/1.6 -apple-system, "Segoe UI", Roboto, sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}
header, main, footer {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 1.5rem;
    width: 100%;
}
header {
    padding-top: 4rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--line);
}
h1 {
    margin: 0 0 .25rem;
    font-size: 2rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}
.dot { color: var(--accent); }
.tag {
    margin: 0;
    color: var(--muted);
    font-family: var(--mono);
    font-size: .85rem;
}
main { padding-top: 2rem; padding-bottom: 3rem; flex: 1; }
section { margin-bottom: 2.5rem; }
h2 {
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--muted);
    font-weight: 500;
    margin: 0 0 .75rem;
}
p { margin: 0 0 .75rem; }
.small { color: var(--muted); font-size: .9rem; }
code {
    background: var(--line);
    padding: 2px 6px;
    border-radius: 3px;
    font: .9em var(--mono);
}
.kv {
    list-style: none;
    padding: 0;
    margin: 0;
    border-top: 1px solid var(--line);
}
.kv li {
    display: flex;
    justify-content: space-between;
    padding: .65rem 0;
    border-bottom: 1px solid var(--line);
    font-family: var(--mono);
    font-size: .9rem;
}
.kv li span:first-child { color: var(--muted); }
footer {
    padding: 1.5rem;
    border-top: 1px solid var(--line);
    color: var(--muted);
    font-size: .85rem;
    text-align: center;
}
footer code { background: transparent; padding: 0; }