/* containers-docs — bright/light default, dark via [data-theme="dark"]. */

:root {
    --bg: #ffffff;
    --bg-soft: #f6f7f9;
    --bg-inset: #eef0f3;
    --text: #17191d;
    --text-soft: #5b6470;
    --border: #e3e6ea;
    --accent: #2f5df6;
    --accent-soft: #e8eeff;
    --code-bg: #16181d;
    --code-text: #e6e8ec;
    --admon-note: #2f5df6;
    --admon-tip: #0e9f6e;
    --admon-warning: #d97706;
    --admon-important: #7c3aed;
    --admon-caution: #dc2626;
    --shadow: 0 1px 3px rgba(20, 24, 32, 0.08);
    --scroll-thumb: rgba(23, 25, 29, 0.25);
    --scroll-thumb-hover: rgba(23, 25, 29, 0.45);
    color-scheme: light;
}

[data-theme="dark"] {
    --bg: #141619;
    --bg-soft: #1a1d21;
    --bg-inset: #22262b;
    --text: #e7e9ec;
    --text-soft: #98a0ab;
    --border: #2b2f36;
    --accent: #6d95ff;
    --accent-soft: #1e2a4a;
    --code-bg: #101216;
    --code-text: #dfe2e7;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
    --scroll-thumb: rgba(231, 233, 236, 0.22);
    --scroll-thumb-hover: rgba(231, 233, 236, 0.4);
    color-scheme: dark;
}

* { box-sizing: border-box; }

/* ---------- slim custom scrollbars ---------- */

* {
    scrollbar-width: thin;
    scrollbar-color: var(--scroll-thumb) transparent;
}

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
    background: var(--scroll-thumb);
    border-radius: 8px;
    border: 2px solid transparent;
    background-clip: padding-box;
}
::-webkit-scrollbar-thumb:hover { background-color: var(--scroll-thumb-hover); }
::-webkit-scrollbar-corner { background: transparent; }

/* Even slimmer inside code blocks. */
.codeblock pre::-webkit-scrollbar { height: 6px; }

html, body {
    margin: 0;
    padding: 0;
}

body {
    background: var(--bg);
    color: var(--text);
    font: 16px/1.7 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
}

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

/* ---------- header ---------- */

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
}

.header-inner {
    display: flex;
    align-items: center;
    gap: 16px;
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 20px;
    height: 56px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 15px;
    color: var(--text);
    white-space: nowrap;
}
.brand:hover { text-decoration: none; }
.brand-mark { color: var(--accent); font-size: 18px; }
.brand-docs {
    background: var(--accent-soft);
    color: var(--accent);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 2px 8px;
    border-radius: 4px;
}

.search { position: relative; flex: 1; max-width: 420px; }
.search input {
    width: 100%;
    height: 34px;
    padding: 0 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-soft);
    color: var(--text);
    font-size: 14px;
}
.search input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
}

.search-results {
    position: absolute;
    top: 42px;
    left: 0;
    right: 0;
    max-height: 420px;
    overflow-y: auto;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    box-shadow: var(--shadow);
    padding: 6px;
}
.search-result {
    display: block;
    padding: 8px 10px;
    border-radius: 6px;
    color: var(--text);
}
.search-result:hover, .search-result.selected { background: var(--bg-inset); text-decoration: none; }
.search-result .sr-title { font-weight: 600; font-size: 14px; }
.search-result .sr-group {
    font-size: 11px;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-right: 6px;
}
.search-result .sr-snippet {
    font-size: 12px;
    color: var(--text-soft);
    margin-top: 2px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.search-empty { padding: 10px; font-size: 13px; color: var(--text-soft); }

.header-links {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-left: auto;
}
.header-links a {
    color: var(--text-soft);
    font-size: 14px;
    font-weight: 500;
}
.header-links a:hover { color: var(--text); }

.icon-btn {
    border: 1px solid var(--border);
    background: var(--bg-soft);
    color: var(--text);
    border-radius: 8px;
    height: 34px;
    min-width: 34px;
    padding: 0 8px;
    font-size: 15px;
    cursor: pointer;
}
.icon-btn:hover { border-color: var(--accent); }

/* ---------- layout ---------- */

.layout {
    display: grid;
    grid-template-columns: 260px minmax(0, 1fr) 220px;
    gap: 0;
    max-width: 1440px;
    margin: 0 auto;
}

.sidebar {
    border-right: 1px solid var(--border);
    padding: 24px 20px 40px 20px;
    position: sticky;
    top: 56px;
    height: calc(100vh - 56px);
    overflow-y: auto;
}

.nav-group { margin-bottom: 22px; }
.nav-group-title {
    margin: 0 0 6px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-soft);
}
.nav-group ul { list-style: none; margin: 0; padding: 0; }
.nav-group li a {
    display: block;
    padding: 5px 10px;
    margin: 1px -10px;
    border-radius: 6px;
    color: var(--text-soft);
    font-size: 14px;
}
.nav-group li a:hover { color: var(--text); text-decoration: none; background: var(--bg-soft); }
.nav-group li a.active {
    background: var(--accent-soft);
    color: var(--accent);
    font-weight: 600;
}

/* ---------- content ---------- */

.content {
    padding: 40px 48px 24px;
    min-width: 0;
}

.doc { max-width: 780px; }

.doc h1 {
    font-size: 34px;
    line-height: 1.2;
    margin: 0 0 20px;
    letter-spacing: -0.02em;
}
.doc h2 {
    font-size: 24px;
    margin: 36px 0 12px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
    letter-spacing: -0.01em;
}
.doc h3 { font-size: 19px; margin: 28px 0 10px; }
.doc h4 { font-size: 16px; margin: 24px 0 8px; }

.doc p { margin: 12px 0; }
.doc ul, .doc ol { padding-left: 24px; margin: 12px 0; }
.doc li { margin: 4px 0; }

.doc code {
    font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
    font-size: 0.86em;
    background: var(--bg-inset);
    border-radius: 5px;
    padding: 2px 6px;
}

/* code blocks */
.codeblock {
    margin: 18px 0;
    border-radius: 10px;
    overflow: hidden;
    background: var(--code-bg);
    box-shadow: var(--shadow);
}
.codeblock figcaption {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 14px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: #8b93a1;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.codeblock pre {
    margin: 0;
    padding: 14px 16px;
    overflow-x: auto;
}
.codeblock code {
    font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
    font-size: 13.5px;
    line-height: 1.6;
    color: var(--code-text);
    background: none;
    padding: 0;
}
.code-copy {
    border: none;
    background: rgba(255, 255, 255, 0.08);
    color: #aab2bf;
    font-size: 11px;
    font-weight: 600;
    border-radius: 5px;
    padding: 3px 9px;
    cursor: pointer;
    text-transform: none;
    letter-spacing: normal;
}
.code-copy:hover { color: #fff; background: rgba(255, 255, 255, 0.16); }

/* syntax tokens (code surface is dark in both themes) */
.tok-com  { color: #6b7686; font-style: italic; }
.tok-str  { color: #9fd37a; }
.tok-key  { color: #79c0ff; }
.tok-kw   { color: #d2a8ff; }
.tok-num  { color: #f0b36d; }
.tok-var  { color: #ffa657; }
.tok-flag { color: #79c0ff; }
.tok-sec  { color: #ff7b72; font-weight: 600; }

/* tables */
.tablewrap { overflow-x: auto; margin: 18px 0; }
.doc table {
    border-collapse: collapse;
    width: 100%;
    font-size: 14px;
}
.doc th, .doc td {
    border: 1px solid var(--border);
    padding: 8px 12px;
    text-align: left;
    vertical-align: top;
}
.doc th { background: var(--bg-soft); font-weight: 600; }
.doc tbody tr:hover { background: var(--bg-soft); }

/* admonitions */
.admonition {
    margin: 18px 0;
    padding: 12px 16px;
    border-left: 3px solid var(--admon-note);
    background: var(--bg-soft);
    border-radius: 0 8px 8px 0;
}
.admonition-title {
    margin: 0 0 4px;
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--admon-note);
}
.admonition-title + p, .admonition blockquote, .admonition p { margin: 6px 0; font-size: 14.5px; }
.admonition-icon { margin-right: 4px; }
.admonition-tip { border-left-color: var(--admon-tip); }
.admonition-tip .admonition-title { color: var(--admon-tip); }
.admonition-warning { border-left-color: var(--admon-warning); }
.admonition-warning .admonition-title { color: var(--admon-warning); }
.admonition-important { border-left-color: var(--admon-important); }
.admonition-important .admonition-title { color: var(--admon-important); }
.admonition-caution { border-left-color: var(--admon-caution); }
.admonition-caution .admonition-title { color: var(--admon-caution); }

blockquote {
    margin: 18px 0;
    padding: 4px 16px;
    border-left: 3px solid var(--border);
    color: var(--text-soft);
}

hr { border: none; border-top: 1px solid var(--border); margin: 28px 0; }
.doc img { max-width: 100%; border-radius: 8px; }

/* ---------- toc ---------- */

.toc {
    padding: 40px 16px 40px 24px;
    position: sticky;
    top: 56px;
    height: calc(100vh - 56px);
    overflow-y: auto;
    border-left: 1px solid var(--border);
}
.toc-title {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-soft);
    margin: 0 0 8px;
}
.toc ul { list-style: none; margin: 0; padding: 0; }
.toc li a {
    display: block;
    padding: 3px 0 3px 10px;
    font-size: 13px;
    color: var(--text-soft);
    border-left: 2px solid transparent;
    line-height: 1.5;
}
.toc li a:hover { color: var(--text); text-decoration: none; }
.toc li a.current {
    color: var(--accent);
    border-left-color: var(--accent);
    font-weight: 600;
}
.toc-h3 { padding-left: 12px; }

/* ---------- footer ---------- */

.doc-footer { max-width: 780px; margin-top: 40px; }
.edit-link { font-size: 14px; }
.pager {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin-top: 20px;
}
.pager a {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text);
    min-width: 44%;
    font-size: 13px;
}
.pager a:hover { border-color: var(--accent); text-decoration: none; }
.pager a span { color: var(--text-soft); font-size: 12px; }
.pager a strong { font-size: 14px; }
.pager-next { text-align: right; align-items: flex-end; }
.copyright { color: var(--text-soft); font-size: 13px; margin-top: 24px; }

.doc h2:target, .doc h3:target { scroll-margin-top: 72px; }

/* ---------- responsive ---------- */

#sidebar-toggle { display: none; }

@media (max-width: 1200px) {
    .layout { grid-template-columns: 260px minmax(0, 1fr); }
    .toc { display: none; }
}

@media (max-width: 900px) {
    .layout { grid-template-columns: minmax(0, 1fr); }
    #sidebar-toggle { display: inline-block; }
    .sidebar {
        position: fixed;
        left: 0;
        top: 56px;
        z-index: 40;
        width: 280px;
        background: var(--bg);
        transform: translateX(-100%);
        transition: transform 0.2s ease;
        box-shadow: var(--shadow);
    }
    .sidebar.open { transform: translateX(0); }
    .content { padding: 28px 20px; }
    .search { display: none; }
}