:root {
    --text: #1f2328;
    --muted: #57606a;
    --border: #d0d7de;
    --bg: #ffffff;
    --bg-soft: #f6f8fa;
    --link: #0969da;
    --link-hover: #0550ae;
    --accent: #218bff;
}

@media (prefers-color-scheme: dark) {
    :root {
        --text: #e6edf3;
        --muted: #8b949e;
        --border: #30363d;
        --bg: #0d1117;
        --bg-soft: #161b22;
        --link: #58a6ff;
        --link-hover: #79c0ff;
        --accent: #58a6ff;
    }
}

* {
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.65;
    margin: 0;
    padding: 0;
    font-size: 16px;
}

.container {
    max-width: 760px;
    margin: 0 auto;
    padding: 48px 24px 96px;
}

header.site {
    border-bottom: 1px solid var(--border);
    padding: 24px;
    background: var(--bg-soft);
}

header.site .container {
    padding: 0;
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

header.site .brand {
    font-weight: 600;
    font-size: 15px;
    color: var(--text);
    text-decoration: none;
}

header.site nav {
    display: flex;
    gap: 20px;
}

header.site nav a {
    color: var(--muted);
    text-decoration: none;
    font-size: 14px;
    padding: 6px 0;
    min-height: 32px;
    display: inline-block;
}

header.site nav a:hover {
    color: var(--accent);
}

h1 {
    font-size: 32px;
    font-weight: 700;
    margin: 0 0 8px;
    letter-spacing: -0.01em;
}

h2 {
    font-size: 20px;
    font-weight: 600;
    margin: 40px 0 12px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--border);
}

h3 {
    font-size: 17px;
    font-weight: 600;
    margin: 28px 0 10px;
}

p, ul, ol {
    margin: 0 0 16px;
}

ul, ol {
    padding-left: 24px;
}

li {
    margin-bottom: 6px;
}

a {
    color: var(--link);
    text-decoration: none;
}

a:hover {
    color: var(--link-hover);
    text-decoration: underline;
}

strong {
    font-weight: 600;
}

.meta {
    color: var(--muted);
    font-size: 14px;
    margin: 0 0 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}

.meta p {
    margin: 4px 0;
}

.table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 16px 0 24px;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 15px;
}

th, td {
    text-align: left;
    padding: 10px 12px;
    border: 1px solid var(--border);
    vertical-align: top;
}

th {
    background: var(--bg-soft);
    font-weight: 600;
}

blockquote {
    border-left: 3px solid var(--border);
    margin: 16px 0;
    padding: 4px 16px;
    color: var(--muted);
}

footer.site {
    border-top: 1px solid var(--border);
    padding: 24px;
    text-align: center;
    color: var(--muted);
    font-size: 13px;
    background: var(--bg-soft);
}

footer.site a {
    color: var(--muted);
    margin: 0 8px;
}

.doc-list {
    list-style: none;
    padding: 0;
    margin: 32px 0;
}

.doc-list li {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px 24px;
    margin-bottom: 16px;
    transition: border-color 0.15s;
}

.doc-list li:hover {
    border-color: var(--accent);
}

.doc-list a {
    font-size: 17px;
    font-weight: 600;
    display: block;
    margin-bottom: 4px;
}

.doc-list .desc {
    color: var(--muted);
    font-size: 14px;
    margin: 0;
}

@media (max-width: 600px) {
    body {
        font-size: 15px;
    }
    .container {
        padding: 28px 16px 56px;
    }
    h1 {
        font-size: 24px;
    }
    h2 {
        font-size: 17px;
        margin: 32px 0 10px;
    }
    h3 {
        font-size: 16px;
    }
    header.site {
        padding: 14px 16px;
    }
    header.site .container {
        gap: 8px;
    }
    header.site .brand {
        font-size: 14px;
    }
    header.site nav {
        gap: 16px;
    }
    header.site nav a {
        font-size: 13px;
    }
    table {
        font-size: 13px;
    }
    th, td {
        padding: 8px 10px;
    }
    .doc-list li {
        padding: 16px 18px;
    }
    .doc-list a {
        font-size: 16px;
    }
    footer.site {
        padding: 20px 16px;
        font-size: 12px;
    }
}

@media (max-width: 380px) {
    h1 {
        font-size: 22px;
    }
    .container {
        padding: 24px 14px 48px;
    }
}