/* ================= Gatekeeper docs ================= */

:root {
    --accent: #0f766e;
    --accent-soft: #0f766e14;
    --accent-strong: #115e59;
    --bg: #ffffff;
    --bg-soft: #f8fafc;
    --bg-hover: #f1f5f9;
    --border: #e2e8f0;
    --text: #1e293b;
    --text-soft: #475569;
    --text-faint: #94a3b8;
    --heading: #0f172a;
    --code-bg: #0f172a;
    --code-inline-bg: #f1f5f9;
    --code-inline-text: #be185d;
    --topbar-bg: #ffffffcc;
    --shadow: 0 4px 24px rgb(15 23 42 / 8%);
    --table-stripe: #f8fafc;
}

:root[data-theme="dark"] {
    --accent: #2dd4bf;
    --accent-soft: #2dd4bf14;
    --accent-strong: #5eead4;
    --bg: #0b1120;
    --bg-soft: #0f172a;
    --bg-hover: #1e293b;
    --border: #1e293b;
    --text: #cbd5e1;
    --text-soft: #94a3b8;
    --text-faint: #64748b;
    --heading: #f1f5f9;
    --code-bg: #0f172a;
    --code-inline-bg: #1e293b;
    --code-inline-text: #f472b6;
    --topbar-bg: #0b1120cc;
    --shadow: 0 4px 24px rgb(0 0 0 / 40%);
    --table-stripe: #0f172a;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 5rem; }

body {
    margin: 0;
    font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
    font-size: 16px;
    line-height: 1.75;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}

/* ---------------- Top bar ---------------- */

.topbar {
    position: sticky;
    top: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    gap: 1rem;
    height: 3.75rem;
    padding: 0 1.25rem;
    background: var(--topbar-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
}

.brand {
    display: flex;
    align-items: center;
    gap: .55rem;
    text-decoration: none;
    color: var(--heading);
    font-weight: 700;
    font-size: 1.05rem;
    white-space: nowrap;
}

.brand-mark {
    display: grid;
    place-items: center;
    width: 1.9rem;
    height: 1.9rem;
    border-radius: .5rem;
    background: var(--accent);
    color: #fff;
}

:root[data-theme="dark"] .brand-mark { color: #042f2e; }

.brand-badge {
    font-size: .72rem;
    font-weight: 500;
    font-family: ui-monospace, monospace;
    color: var(--text-soft);
    background: var(--bg-hover);
    border: 1px solid var(--border);
    padding: .1rem .5rem;
    border-radius: 99px;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-soft);
    cursor: pointer;
    padding: .4rem;
}

/* ---------------- Search ---------------- */

.search { position: relative; margin-left: auto; width: min(20rem, 34vw); }

.search-icon {
    position: absolute;
    left: .7rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-faint);
    pointer-events: none;
}

.search input {
    width: 100%;
    padding: .45rem .8rem .45rem 2.1rem;
    font-size: .875rem;
    color: var(--text);
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: .5rem;
    outline: none;
}

.search input:focus { border-color: var(--accent); }

.search-results {
    position: absolute;
    top: calc(100% + .4rem);
    left: 0;
    right: 0;
    max-height: 24rem;
    overflow-y: auto;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: .6rem;
    box-shadow: var(--shadow);
    padding: .35rem;
}

.search-results a {
    display: block;
    padding: .5rem .7rem;
    border-radius: .45rem;
    text-decoration: none;
    color: var(--text);
    font-size: .875rem;
}

.search-results a:hover, .search-results a.active { background: var(--accent-soft); }

.search-results a .hit-page {
    display: block;
    font-size: .72rem;
    color: var(--text-faint);
}

.search-results .no-hits { padding: .6rem .7rem; font-size: .85rem; color: var(--text-faint); }

.topbar-actions { display: flex; align-items: center; gap: .6rem; }

.version-badge {
    font-size: .72rem;
    font-weight: 600;
    color: var(--accent);
    background: var(--accent-soft);
    padding: .15rem .55rem;
    border-radius: 99px;
}

.theme-toggle {
    display: grid;
    place-items: center;
    width: 2.1rem;
    height: 2.1rem;
    border: 1px solid var(--border);
    border-radius: .5rem;
    background: var(--bg-soft);
    color: var(--text-soft);
    cursor: pointer;
}

.theme-toggle:hover { color: var(--accent); border-color: var(--accent); }

:root[data-theme="light"] .icon-sun { display: none; }
:root[data-theme="dark"] .icon-moon { display: none; }

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

.shell {
    display: grid;
    grid-template-columns: 17rem minmax(0, 1fr) 14rem;
    gap: 2.5rem;
    max-width: 90rem;
    margin: 0 auto;
    padding: 0 1.25rem;
}

/* ---------------- Sidebar ---------------- */

.sidebar {
    position: sticky;
    top: 3.75rem;
    height: calc(100vh - 3.75rem);
    overflow-y: auto;
    padding: 1.75rem .5rem 3rem 0;
    border-right: 1px solid var(--border);
    font-size: .875rem;
}

.sidebar h5 {
    margin: 1.6rem 0 .45rem;
    font-size: .72rem;
    font-weight: 700;
    letter-spacing: .07em;
    text-transform: uppercase;
    color: var(--heading);
}

.sidebar h5:first-child { margin-top: 0; }

.sidebar ul { list-style: none; margin: 0; padding: 0; }

.sidebar a {
    display: block;
    padding: .3rem .75rem;
    margin: .05rem 0;
    color: var(--text-soft);
    text-decoration: none;
    border-radius: .45rem;
    border-left: 2px solid transparent;
}

.sidebar a:hover { color: var(--accent); background: var(--bg-hover); }

.sidebar a.active {
    color: var(--accent);
    font-weight: 600;
    background: var(--accent-soft);
    border-left-color: var(--accent);
    border-radius: 0 .45rem .45rem 0;
}

/* ---------------- Content / prose ---------------- */

.content { padding: 2.25rem 0 4rem; min-width: 0; }

.prose h1 {
    margin: 0 0 1.25rem;
    font-size: 2.1rem;
    line-height: 1.2;
    letter-spacing: -.02em;
    color: var(--heading);
}

.prose h2 {
    margin: 2.4rem 0 .9rem;
    padding-top: .5rem;
    font-size: 1.45rem;
    letter-spacing: -.01em;
    color: var(--heading);
}

.prose h3 { margin: 1.9rem 0 .7rem; font-size: 1.12rem; color: var(--heading); }

.prose h2 .anchor, .prose h3 .anchor {
    margin-left: .35rem;
    color: var(--text-faint);
    text-decoration: none;
    opacity: 0;
    transition: opacity .15s;
}

.prose h2:hover .anchor, .prose h3:hover .anchor { opacity: 1; }

.prose p { margin: 0 0 1.1rem; }

.prose a { color: var(--accent); text-decoration: none; border-bottom: 1px solid transparent; }
.prose a:hover { border-bottom-color: var(--accent); }

.prose ul, .prose ol { margin: 0 0 1.1rem; padding-left: 1.4rem; }
.prose li { margin: .3rem 0; }

.prose strong { color: var(--heading); }

.prose blockquote {
    margin: 1.25rem 0;
    padding: .75rem 1.1rem;
    border-left: 3px solid var(--accent);
    background: var(--accent-soft);
    border-radius: 0 .5rem .5rem 0;
    color: var(--text-soft);
}

.prose blockquote p { margin: 0; }

/* code */

.prose code {
    font-family: ui-monospace, "Cascadia Code", "JetBrains Mono", Menlo, monospace;
    font-size: .855em;
    background: var(--code-inline-bg);
    color: var(--code-inline-text);
    padding: .13em .38em;
    border-radius: .32rem;
}

.prose pre {
    position: relative;
    margin: 1.2rem 0 1.5rem;
    padding: 1.05rem 1.2rem;
    background: var(--code-bg);
    border-radius: .7rem;
    overflow-x: auto;
    line-height: 1.6;
    border: 1px solid #1e293b;
}

.prose pre code {
    background: none;
    color: #e2e8f0;
    padding: 0;
    font-size: .83rem;
}

.copy-btn {
    position: absolute;
    top: .55rem;
    right: .55rem;
    padding: .28rem .6rem;
    font-size: .7rem;
    font-weight: 600;
    color: #94a3b8;
    background: #1e293b;
    border: 1px solid #334155;
    border-radius: .4rem;
    cursor: pointer;
    opacity: 0;
    transition: opacity .15s;
}

.prose pre:hover .copy-btn { opacity: 1; }
.copy-btn:hover { color: #e2e8f0; }
.copy-btn.copied { color: #2dd4bf; border-color: #2dd4bf; }

/* tables */

.prose .table-wrap { overflow-x: auto; margin: 1.2rem 0 1.5rem; border: 1px solid var(--border); border-radius: .6rem; }

.prose table { width: 100%; border-collapse: collapse; font-size: .865rem; }

.prose th {
    text-align: left;
    padding: .6rem .9rem;
    background: var(--bg-soft);
    color: var(--heading);
    font-weight: 600;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

.prose td {
    padding: .55rem .9rem;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
}

.prose tbody tr:last-child td { border-bottom: none; }
.prose tbody tr:nth-child(even) { background: var(--table-stripe); }

.prose td code, .prose th code { white-space: nowrap; }

/* pager */

.pager {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-top: 3.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

.pager a {
    display: flex;
    flex-direction: column;
    gap: .15rem;
    padding: .8rem 1.1rem;
    max-width: 48%;
    border: 1px solid var(--border);
    border-radius: .7rem;
    text-decoration: none;
}

.pager a:hover { border-color: var(--accent); }

.pager .pager-label { font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; color: var(--text-faint); }
.pager .pager-title { color: var(--accent); font-weight: 600; font-size: .95rem; }
.pager .pager-next { margin-left: auto; text-align: right; }

/* ---------------- On-page TOC ---------------- */

.toc {
    position: sticky;
    top: 3.75rem;
    height: calc(100vh - 3.75rem);
    overflow-y: auto;
    padding: 2.1rem 0 3rem;
    font-size: .8rem;
}

.toc h6 {
    margin: 0 0 .6rem;
    font-size: .72rem;
    font-weight: 700;
    letter-spacing: .07em;
    text-transform: uppercase;
    color: var(--heading);
}

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

.toc li a {
    display: block;
    padding: .22rem .8rem;
    color: var(--text-soft);
    text-decoration: none;
    border-left: 2px solid transparent;
    margin-left: -1px;
}

.toc li.toc-h3 a { padding-left: 1.7rem; }

.toc li a:hover { color: var(--accent); }

.toc li a.active { color: var(--accent); border-left-color: var(--accent); font-weight: 600; }

/* ---------------- Prism token colors (dark code blocks) ---------------- */

.token.comment, .token.prolog, .token.doctype, .token.cdata { color: #64748b; font-style: italic; }
.token.punctuation { color: #94a3b8; }
.token.property, .token.tag, .token.constant, .token.symbol, .token.deleted { color: #f472b6; }
.token.boolean, .token.number { color: #fbbf24; }
.token.selector, .token.attr-name, .token.string, .token.char, .token.builtin, .token.inserted { color: #86efac; }
.token.operator, .token.entity, .token.url { color: #7dd3fc; }
.token.atrule, .token.attr-value, .token.keyword { color: #93c5fd; }
.token.function, .token.class-name { color: #c4b5fd; }
.token.regex, .token.important, .token.variable { color: #fda4af; }
.token.delimiter { color: #f472b6; }

/* ---------------- Responsive ---------------- */

@media (max-width: 1200px) {
    .shell { grid-template-columns: 16rem minmax(0, 1fr); }
    .toc { display: none; }
}

@media (max-width: 860px) {
    .shell { grid-template-columns: minmax(0, 1fr); gap: 0; }
    .menu-toggle { display: grid; place-items: center; }
    .brand-badge { display: none; }
    .sidebar {
        position: fixed;
        left: 0;
        top: 3.75rem;
        width: 17rem;
        background: var(--bg);
        border-right: 1px solid var(--border);
        padding: 1.25rem 1rem 3rem;
        transform: translateX(-100%);
        transition: transform .2s ease;
        z-index: 40;
        box-shadow: var(--shadow);
    }
    .sidebar.open { transform: translateX(0); }
    .search { width: min(14rem, 40vw); }
}