:root {
    color-scheme: light dark;
    --bg: #f5f6fa;
    --card: #ffffff;
    --text: #12172b;
    --muted: #5a6180;
    --accent: #3d4fd6;
    --border: #e2e5f0;
    --code-bg: #eef0f7;
    --warning: #8a4b00;
    --warning-bg: #fff4e5;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0e1120;
        --card: #171b2e;
        --text: #eef0f7;
        --muted: #a2a9c4;
        --accent: #8f9dff;
        --border: #262c45;
        --code-bg: #1f2438;
        --warning: #ffcf8f;
        --warning-bg: #35270f;
    }
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font: 17px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    -webkit-text-size-adjust: 100%;
}

.wrap {
    max-width: 44rem;
    margin: 0 auto;
    padding: 2.5rem 1rem 4rem;
}

header.site {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    margin-bottom: 2.5rem;
}

header.site .mark {
    width: 2.1rem;
    height: 2.1rem;
    border-radius: 0.6rem;
    background: var(--accent);
    color: #fff;
    display: grid;
    place-items: center;
    font-weight: 700;
}

header.site a { color: inherit; text-decoration: none; font-weight: 650; }

h1 { font-size: 2rem; line-height: 1.2; margin: 0 0 0.35rem; }
h2 { font-size: 1.3rem; margin: 2.4rem 0 0.6rem; }
h3 { font-size: 1.05rem; margin: 1.6rem 0 0.4rem; }
p, li { color: var(--text); }
.lede { color: var(--muted); font-size: 1.05rem; margin-top: 0; }
.updated { color: var(--muted); font-size: 0.9rem; }

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

ul { padding-left: 1.2rem; }
li { margin: 0.3rem 0; }

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 0.9rem;
    padding: 1.1rem 1.25rem;
    margin: 1.2rem 0;
}

.note {
    background: var(--warning-bg);
    color: var(--warning);
    border: 1px solid transparent;
    border-radius: 0.7rem;
    padding: 0.85rem 1rem;
    margin: 1.2rem 0;
    font-size: 0.95rem;
}

code, pre {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 0.9em;
}

code { background: var(--code-bg); padding: 0.12em 0.36em; border-radius: 0.3rem; }

pre {
    background: var(--code-bg);
    padding: 0.9rem 1rem;
    border-radius: 0.7rem;
    overflow-x: auto;
}

pre code { background: none; padding: 0; }

footer.site {
    margin-top: 3.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
    color: var(--muted);
    font-size: 0.9rem;
}

footer.site a { color: var(--muted); }