:root {
    color-scheme: light;
    --bg: #f7f7f4;
    --paper: #ffffff;
    --text: #202426;
    --muted: #697277;
    --line: #d8d8d2;
    --accent: #0f766e;
    --accent-soft: #e3f0ed;
    --code-bg: #f0f1ed;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    overflow-x: hidden;
    background: var(--bg);
    color: var(--text);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.75;
}

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

a:hover {
    text-decoration: underline;
}

.topbar {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding: 16px 24px;
    border-bottom: 1px solid var(--line);
    color: var(--muted);
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 0.9rem;
}

.topbar .home {
    color: var(--text);
    font-weight: 700;
}

.layout {
    display: grid;
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 36px;
    width: min(1180px, calc(100% - 40px));
    margin: 0 auto;
    padding: 30px 0 64px;
    min-width: 0;
}

.footer {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    width: min(1180px, calc(100% - 40px));
    margin: 0 auto;
    padding: 20px 0 28px;
    border-top: 1px solid var(--line);
    color: var(--muted);
    font-size: 0.88rem;
}

.footer span:first-child {
    color: var(--text);
}

.sidebar {
    position: sticky;
    top: 20px;
    align-self: start;
    min-width: 0;
}

.sidebar nav {
    display: grid;
    gap: 4px;
}

.sidebar a {
    display: block;
    border-radius: 5px;
    padding: 7px 9px;
    color: var(--muted);
    font-size: 0.92rem;
}

.sidebar a:hover,
.sidebar a[aria-current="page"] {
    background: var(--accent-soft);
    color: var(--text);
    text-decoration: none;
}

.content {
    min-width: 0;
    overflow: hidden;
}

article {
    max-width: 860px;
    min-width: 0;
    padding: 28px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--paper);
}

h1,
h2,
h3,
h4,
h5,
h6 {
    line-height: 1.3;
    letter-spacing: 0;
    overflow-wrap: anywhere;
    word-break: break-word;
}

h1 {
    margin: 0 0 18px;
    font-size: clamp(1.8rem, 4vw, 2.55rem);
}

h2 {
    margin: 36px 0 12px;
    padding-top: 12px;
    border-top: 1px solid var(--line);
    font-size: 1.45rem;
}

h3 {
    margin: 28px 0 10px;
    font-size: 1.12rem;
}

p,
ul,
ol,
blockquote,
pre,
.table-wrap {
    margin: 0 0 18px;
}

ul,
ol {
    padding-left: 1.4rem;
}

li + li {
    margin-top: 4px;
}

blockquote {
    border-left: 4px solid var(--accent);
    padding: 10px 14px;
    background: var(--accent-soft);
    color: var(--text);
}

blockquote p {
    margin: 0;
}

code {
    border-radius: 4px;
    padding: 0.12em 0.32em;
    background: var(--code-bg);
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 0.92em;
}

pre {
    overflow: auto;
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 14px;
    background: var(--code-bg);
}

pre code {
    padding: 0;
    background: transparent;
}

pre.mermaid {
    background: #ffffff;
}

.table-wrap {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.94rem;
}

th,
td {
    border: 1px solid var(--line);
    padding: 8px 10px;
    vertical-align: top;
}

th {
    background: var(--code-bg);
    text-align: left;
}

hr {
    border: 0;
    border-top: 1px solid var(--line);
    margin: 28px 0;
}

@media (max-width: 820px) {
    .layout {
        grid-template-columns: 1fr;
        width: min(100% - 24px, 860px);
        gap: 18px;
    }

    .footer {
        flex-direction: column;
        width: min(100% - 24px, 860px);
    }

    .sidebar {
        position: static;
    }

    .sidebar nav {
        display: flex;
        max-width: 100%;
        overflow-x: auto;
        padding-bottom: 6px;
    }

    .sidebar a {
        white-space: nowrap;
    }

    article {
        padding: 20px 16px;
    }
}