:root {
    --docs-sidebar: 268px;
    --docs-toc: 220px;
    --docs-header: 64px;
    --tok-keyword: #a78bfa;
    --tok-string: #7ee2a8;
    --tok-comment: #5a6580;
    --tok-number: #fbbf6e;
    --tok-type: #6c8fff;
    --tok-fn: #7dd3fc;
    --tok-key: #f0abfc;
    --tok-meta: #fb923c;
}

/* ------------------------------------------------------------- page shell */

.docs-page .header-content {
    max-width: 1500px;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.docs-shell {
    display: grid;
    grid-template-columns: var(--docs-sidebar) minmax(0, 1fr) var(--docs-toc);
    gap: 3rem;
    max-width: 1500px;
    margin: 0 auto;
    padding: 0 2rem;
    align-items: start;
}

/* --------------------------------------------------------------- sidebar */

.docs-sidebar {
    position: sticky;
    top: var(--docs-header);
    height: calc(100vh - var(--docs-header));
    overflow-y: auto;
    padding: 2rem 0.5rem 3rem 0;
    border-right: 1px solid var(--border);
}

.docs-sidebar-head {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0 0.75rem;
    margin-bottom: 1.5rem;
    text-decoration: none;
    color: var(--text);
}

.docs-sidebar-head img {
    width: 34px;
    height: 34px;
    border-radius: 8px;
    flex-shrink: 0;
}

.docs-sidebar-head-text strong {
    display: block;
    font-size: 0.95rem;
    letter-spacing: -0.2px;
}

.docs-sidebar-head-text > span {
    display: block;
    font-family: 'Space Mono', monospace;
    font-size: 0.65rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-dim);
}

.docs-search {
    position: relative;
    padding: 0 0.75rem;
    margin-bottom: 1.75rem;
}

.docs-search-field {
    position: relative;
    display: flex;
    align-items: center;
}

.docs-search-field svg {
    position: absolute;
    left: 0.7rem;
    color: var(--text-dim);
    pointer-events: none;
}

.docs-search input {
    width: 100%;
    padding: 0.55rem 0.8rem 0.55rem 2.1rem;
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-family: inherit;
    font-size: 0.85rem;
    outline: none;
    transition: border-color 0.2s, background 0.2s;
}

.docs-search input::placeholder { color: var(--text-dim); }

.docs-search input:focus {
    border-color: var(--accent);
    background: var(--bg-3);
}

.docs-search-results {
    display: none;
    position: absolute;
    top: calc(100% + 0.4rem);
    left: 0.75rem;
    right: 0.75rem;
    z-index: 60;
    max-height: 60vh;
    overflow-y: auto;
    background: var(--bg-2);
    border: 1px solid var(--border-hover);
    border-radius: 10px;
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.5);
    padding: 0.35rem;
}

.docs-search-results.open { display: block; }

.docs-search-hit {
    display: block;
    padding: 0.55rem 0.7rem;
    border-radius: 7px;
    text-decoration: none;
    color: var(--text);
    transition: background 0.15s;
}

.docs-search-hit:hover { background: var(--bg-3); }

.docs-search-hit-page {
    display: block;
    font-family: 'Space Mono', monospace;
    font-size: 0.6rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
}

.docs-search-hit-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    margin-top: 0.1rem;
}

.docs-search-hit-snippet {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    line-height: 1.45;
    margin-top: 0.15rem;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.docs-search-results mark {
    background: rgba(108, 143, 255, 0.25);
    color: var(--text);
    border-radius: 3px;
    padding: 0 1px;
}

.docs-search-empty {
    padding: 0.75rem;
    font-size: 0.82rem;
    color: var(--text-muted);
}

.docs-nav-group {
    font-family: 'Space Mono', monospace;
    font-size: 0.63rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-dim);
    padding: 0 0.75rem;
    margin: 1.5rem 0 0.5rem;
}

.docs-nav-list {
    list-style: none;
    margin: 0 0 0.25rem;
    padding: 0;
}

.docs-nav-link {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.4rem 0.75rem;
    border-radius: 7px;
    font-size: 0.875rem;
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.15s, background 0.15s;
}

.docs-nav-icon {
    flex-shrink: 0;
    color: var(--text-dim);
    opacity: 0.8;
    transition: color 0.15s, opacity 0.15s, transform 0.15s;
}

.docs-nav-link:hover {
    color: var(--text);
    background: var(--bg-2);
}

.docs-nav-link:hover .docs-nav-icon {
    color: var(--text-muted);
    opacity: 1;
    transform: translateY(-1px);
}

.docs-nav-link.active {
    color: var(--accent);
    background: var(--accent-glow);
    font-weight: 600;
}

.docs-nav-link.active .docs-nav-icon {
    color: var(--accent);
    opacity: 1;
}

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

.docs-content {
    min-width: 0;
    padding: 2.5rem 0 4rem;
    transition: opacity 0.15s;
}

.docs-content.is-loading { opacity: 0.35; }

.doc-body {
    max-width: 780px;
}

.doc-error {
    border: 1px solid rgba(248, 113, 113, 0.3);
    background: rgba(248, 113, 113, 0.07);
    border-radius: 10px;
    padding: 1.25rem 1.5rem;
}

.doc-error p { margin: 0 0 0.75rem; }
.doc-error p:last-child { margin-bottom: 0; }

/* ------------------------------------------------------ markdown typography */

.doc-body h1,
.doc-body h2,
.doc-body h3,
.doc-body h4,
.doc-body h5,
.doc-body h6 {
    position: relative;
    color: var(--text);
    font-weight: 700;
    letter-spacing: -0.5px;
    line-height: 1.25;
    scroll-margin-top: 90px;
}

.doc-body h1 {
    font-size: 2.5rem;
    letter-spacing: -1.5px;
    margin: 0 0 1.5rem;
}

.doc-body h2 {
    font-size: 1.6rem;
    margin: 3rem 0 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border);
}

.doc-body h3 { font-size: 1.2rem; margin: 2.25rem 0 0.75rem; }
.doc-body h4 { font-size: 1rem; margin: 1.75rem 0 0.5rem; }
.doc-body h5,
.doc-body h6 { font-size: 0.9rem; margin: 1.5rem 0 0.5rem; color: var(--text-muted); }

.heading-flash {
    animation: heading-flash 1.2s ease;
}

@keyframes heading-flash {
    0%, 40% { background: var(--accent-glow); }
    100% { background: transparent; }
}

.doc-body p {
    color: var(--text-muted);
    font-size: 0.97rem;
    line-height: 1.8;
    margin: 0 0 1.15rem;
}

.doc-body strong { color: var(--text); font-weight: 700; }
.doc-body em { color: var(--text-muted); }

.doc-body a {
    color: var(--accent);
    text-decoration: none;
    border-bottom: 1px solid rgba(108, 143, 255, 0.28);
    transition: border-color 0.15s, color 0.15s;
}

.doc-body a:hover {
    color: #90a9ff;
    border-bottom-color: var(--accent);
}

.doc-backlink {
    font-family: 'Space Mono', monospace;
    font-size: 0.75rem;
    margin-bottom: 1.5rem;
}

.doc-backlink a {
    color: var(--text-dim);
    border-bottom: none;
}

.doc-backlink a:hover { color: var(--accent); }

.doc-body ul,
.doc-body ol {
    color: var(--text-muted);
    font-size: 0.97rem;
    line-height: 1.8;
    margin: 0 0 1.15rem;
    padding-left: 1.35rem;
}

.doc-body li { margin-bottom: 0.4rem; }
.doc-body li::marker { color: var(--text-dim); }
.doc-body li > ul,
.doc-body li > ol { margin: 0.4rem 0 0.2rem; }
.doc-body li > p { margin-bottom: 0.6rem; }

.doc-body .task-list { list-style: none; padding-left: 0.25rem; }
.doc-body .task-item input { margin-right: 0.5rem; accent-color: var(--accent); }

.doc-body hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 2.5rem 0;
}

.doc-body blockquote {
    margin: 0 0 1.25rem;
    padding: 0.9rem 1.25rem;
    border-left: 2px solid var(--accent);
    background: rgba(108, 143, 255, 0.05);
    border-radius: 0 8px 8px 0;
}

.doc-body blockquote p { margin-bottom: 0.5rem; }
.doc-body blockquote p:last-child { margin-bottom: 0; }

.doc-body img {
    max-width: 100%;
    border-radius: 10px;
    border: 1px solid var(--border);
    display: block;
    margin: 1.5rem 0;
}

/* ------------------------------------------------------------------ code */

.doc-body code {
    font-family: 'Space Mono', monospace;
    font-size: 0.83em;
    background: var(--bg-3);
    border: 1px solid var(--border);
    border-radius: 5px;
    padding: 0.12em 0.38em;
    color: #cfd7ea;
    word-break: break-word;
}

.doc-body .code-block {
    position: relative;
    margin: 0 0 1.5rem;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: #0b0d13;
    overflow: hidden;
}

.doc-body .code-block::before {
    content: attr(data-lang);
    position: absolute;
    top: 0.55rem;
    left: 0.9rem;
    font-family: 'Space Mono', monospace;
    font-size: 0.6rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-dim);
    pointer-events: none;
}

.doc-body .code-block[data-lang] pre { padding-top: 2.1rem; }

.doc-body .code-block pre {
    margin: 0;
    padding: 1rem 1.1rem;
    overflow-x: auto;
}

.doc-body .code-block code {
    background: none;
    border: none;
    padding: 0;
    font-size: 0.82rem;
    line-height: 1.7;
    color: #d5dcec;
    white-space: pre;
    word-break: normal;
}

.code-copy {
    position: absolute;
    top: 0.45rem;
    right: 0.5rem;
    padding: 0.25rem 0.6rem;
    font-family: 'Space Mono', monospace;
    font-size: 0.65rem;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    background: var(--bg-3);
    border: 1px solid var(--border);
    border-radius: 6px;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.15s, color 0.15s, border-color 0.15s;
}

.code-block:hover .code-copy,
.code-copy:focus { opacity: 1; }

.code-copy:hover {
    color: var(--text);
    border-color: var(--border-hover);
}

.code-copy.copied { color: var(--green); border-color: rgba(74, 222, 128, 0.4); }

.tok-keyword { color: var(--tok-keyword); }
.tok-string  { color: var(--tok-string); }
.tok-comment { color: var(--tok-comment); font-style: italic; }
.tok-number  { color: var(--tok-number); }
.tok-type    { color: var(--tok-type); }
.tok-fn      { color: var(--tok-fn); }
.tok-key     { color: var(--tok-key); }
.tok-meta    { color: var(--tok-meta); }

/* ----------------------------------------------------------------- tables */

.doc-body .table-wrap {
    overflow-x: auto;
    margin: 0 0 1.5rem;
    border: 1px solid var(--border);
    border-radius: 10px;
}

.doc-body table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
}

.doc-body th {
    text-align: left;
    font-family: 'Space Mono', monospace;
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
    background: var(--bg-2);
    padding: 0.7rem 1rem;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

.doc-body td {
    padding: 0.7rem 1rem;
    color: var(--text-muted);
    line-height: 1.65;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
}

.doc-body tbody tr:last-child td { border-bottom: none; }
.doc-body tbody tr:hover td { background: rgba(255, 255, 255, 0.015); }
.doc-body td strong { color: var(--text); }

/* ----------------------------------------------------------------- pager */

.docs-pager {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    max-width: 780px;
}

.docs-pager-link {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    padding: 0.9rem 1.1rem;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--bg-2);
    text-decoration: none;
    transition: border-color 0.2s, transform 0.2s, background 0.2s;
}

.docs-pager-link.next { text-align: right; align-items: flex-end; }

.docs-pager-link:hover {
    border-color: var(--border-hover);
    background: var(--bg-3);
    transform: translateY(-2px);
}

.docs-pager-label {
    font-family: 'Space Mono', monospace;
    font-size: 0.6rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-dim);
}

.docs-pager-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text);
}

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

.docs-toc {
    position: sticky;
    top: var(--docs-header);
    max-height: calc(100vh - var(--docs-header));
    overflow-y: auto;
    padding: 3.25rem 0 3rem;
    font-size: 0.82rem;
}

.docs-toc.is-empty { display: none; }

.docs-toc-title {
    font-family: 'Space Mono', monospace;
    font-size: 0.63rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-bottom: 0.75rem;
}

.docs-toc ul {
    list-style: none;
    margin: 0;
    padding: 0;
    border-left: 1px solid var(--border);
}

.docs-toc li a {
    display: block;
    padding: 0.28rem 0 0.28rem 0.85rem;
    margin-left: -1px;
    border-left: 1px solid transparent;
    color: var(--text-dim);
    text-decoration: none;
    line-height: 1.45;
    transition: color 0.15s, border-color 0.15s;
}

.docs-toc li.toc-h3 a { padding-left: 1.6rem; font-size: 0.78rem; }

.docs-toc li a:hover { color: var(--text-muted); }

.docs-toc li a.active {
    color: var(--accent);
    border-left-color: var(--accent);
}

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

.docs-menu-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--bg-2);
    color: var(--text);
    cursor: pointer;
}

@media (max-width: 1180px) {
    .docs-shell {
        grid-template-columns: var(--docs-sidebar) minmax(0, 1fr);
        gap: 2.5rem;
    }
    .docs-toc { display: none; }
}

@media (max-width: 880px) {
    .docs-shell {
        grid-template-columns: minmax(0, 1fr);
        padding: 0 1.25rem;
        gap: 0;
    }

    .docs-menu-toggle { display: inline-flex; }

    .docs-sidebar {
        position: fixed;
        top: var(--docs-header);
        left: 0;
        width: 84%;
        max-width: 320px;
        height: calc(100vh - var(--docs-header));
        z-index: 45;
        background: var(--bg);
        border-right: 1px solid var(--border);
        padding: 1.5rem 1rem 3rem;
        transform: translateX(-102%);
        transition: transform 0.25s ease;
    }

    .docs-sidebar.open {
        transform: translateX(0);
        box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
    }

    .docs-content { padding-top: 1.75rem; }
    .doc-body h1 { font-size: 1.9rem; letter-spacing: -0.75px; }
    .doc-body h2 { font-size: 1.35rem; margin-top: 2.25rem; }

    .docs-pager { grid-template-columns: 1fr; }
}