@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Space+Grotesk:wght@500;600;700&family=JetBrains+Mono:wght@400&display=swap');

/* ── Tokens ──────────────────────────────────────────────────── */
:root {
    /* Surface palette */
    --bg:       #0a0a0a;
    --surface:  #111113;
    --elevated: #17171a;
    --border:   #26262b;

    /* Text */
    --fg:    #e7e7ea;
    --muted: #9a9aa3;

    /* Accent (navy) */
    --accent:      #1c3a7a;
    --accent-soft: #4a6cd9;
    --accent-deep: #142a5a;

    /* Secondary (clay) */
    --secondary:      #c0391b;
    --secondary-soft: #e04a2c;
    --secondary-deep: #8e2613;

    /* Product colors */
    --product-smartfiles:  #4a6cd9;
    --product-numstore:    #1c3a7a;
    --product-enterprise:  #c0391b;

    /* Fonts */
    --font-sans:    'Inter', system-ui, -apple-system, sans-serif;
    --font-display: '"Space Grotesk"', 'Space Grotesk', system-ui, sans-serif;
    --font-mono:    '"JetBrains Mono"', 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

    /* Layout */
    --container-max: 1200px;
    --radius:        6px;
    --radius-sm:     4px;

    /* Aliases kept for code blocks etc. */
    --rule:    var(--border);
    --code-bg: var(--surface);
    --code-fg: var(--fg);
}

/* ── Base ────────────────────────────────────────────────────── */
html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}
body {
    margin: 0;
    background: var(--bg);
    color: var(--fg);
    font-family: var(--font-sans);
    font-feature-settings: 'cv11', 'ss01', 'ss03';
    line-height: 1.6;
}

:focus-visible {
    outline: none;
    box-shadow: 0 0 0 2px var(--bg), 0 0 0 4px var(--accent-soft);
    border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
        scroll-behavior: auto !important;
    }
}

/* ── Typography ──────────────────────────────────────────────── */
h1, h2, h3, h4 {
    font-family: var(--font-display);
    letter-spacing: -0.02em;
    line-height: 1.2;
    margin-top: 2em;
    margin-bottom: 0.5em;
    font-weight: 600;
    color: var(--fg);
}
h1 { font-size: 2.25rem; border-bottom: 1px solid var(--border); padding-bottom: .35em; }
h2 { font-size: 1.6rem;  border-bottom: 1px solid var(--border); padding-bottom: .25em; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1rem;    color: var(--muted); text-transform: uppercase; letter-spacing: 0.06em; }

p { margin: 0.9em 0; }
strong { font-weight: 600; color: var(--fg); }
small { color: var(--muted); }

a {
    color: var(--accent-soft);
    text-decoration: none;
    transition: color 0.15s;
}
a:hover { text-decoration: underline; }

/* Header block (page title/author/date) */
header h1 { margin-top: 0; }
header .subtitle { color: var(--muted); font-size: 1.15rem; margin-top: -.2em; font-family: var(--font-display); }
header .author, header .date { color: var(--muted); margin: 0; }

/* ── Code ────────────────────────────────────────────────────── */
code, pre, kbd, samp {
    font-family: var(--font-mono);
    font-size: 0.9em;
}
code {
    background: var(--surface);
    color: var(--fg);
    padding: 0.15em 0.4em;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
}
pre {
    background: var(--surface);
    color: var(--fg);
    padding: 1em 1.1em;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    overflow-x: auto;
    line-height: 1.55;
}
pre code {
    background: none;
    padding: 0;
    border: none;
    font-size: 0.92em;
}

kbd {
    background: var(--elevated);
    border: 1px solid var(--border);
    border-bottom-width: 2px;
    border-radius: var(--radius-sm);
    padding: 0.1em 0.45em;
    font-size: 0.85em;
}

/* ── Blockquote, tables, images, rule ────────────────────────── */
blockquote {
    margin: 1.2em 0;
    padding: 0.2em 1.1em;
    color: var(--muted);
    border-left: 3px solid var(--accent-soft);
    background: var(--surface);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

table {
    border-collapse: collapse;
    margin: 1.2em 0;
    width: 100%;
    font-size: 0.95em;
}
th, td {
    border: 1px solid var(--border);
    padding: 0.55em 0.8em;
    text-align: left;
}
th {
    background: var(--surface);
    font-weight: 600;
    color: var(--fg);
}

img { max-width: 100%; height: auto; border-radius: var(--radius-sm); }

hr {
    border: 0;
    border-top: 1px solid var(--border);
    margin: 2.5em 0;
}

/* TOC */
#toc {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.75em 1.1em;
    margin: 2em 0;
    font-size: 0.95em;
}
#toc ul { padding-left: 1.2em; }

/* ── Components ──────────────────────────────────────────────── */
.container-page {
    margin-inline: auto;
    width: 100%;
    max-width: var(--container-max);
    padding-inline: 1.5rem;
}
@media (min-width: 640px) {
    .container-page { padding-inline: 2rem; }
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border-radius: var(--radius);
    padding: 0.65rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 600;
    min-height: 44px;
    border: 1px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.15s, color 0.15s, border-color 0.15s;
    font-family: var(--font-sans);
}
.btn-primary   { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-soft); }
.btn-secondary { background: transparent; color: var(--fg); border-color: var(--border); }
.btn-secondary:hover { background: var(--elevated); }
.btn-ghost     { background: transparent; color: var(--fg); }
.btn-ghost:hover { background: var(--elevated); }
.btn:hover     { text-decoration: none; }

/* Eyebrow tag */
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: color-mix(in srgb, var(--surface) 60%, transparent);
    padding: 0.25rem 0.75rem;
    font-size: 0.72rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--muted);
}

/* Scroll-reveal hooks (toggle .reveal-visible from JS / IntersectionObserver) */
@keyframes fade-in-up {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}
.reveal { opacity: 0; }
.reveal-visible {
    opacity: 1;
    animation: fade-in-up 0.6s ease-out both;
}

/* ── Site chrome ─────────────────────────────────────────────── */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1.5rem;
    background: color-mix(in srgb, var(--bg) 92%, transparent);
    backdrop-filter: saturate(140%) blur(8px);
    -webkit-backdrop-filter: saturate(140%) blur(8px);
    border-bottom: 1px solid var(--border);
}

.site-title {
    display: flex;
    align-items: center;
    gap: 0.6em;
    font-family: var(--font-display);
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--fg);
    text-decoration: none;
}
.site-title:hover { text-decoration: none; color: var(--fg); }

.site-logo {
    height: 1.6rem;
    width: auto;
    display: block;
}

.site-nav a {
    color: var(--muted);
    text-decoration: none;
    margin-left: 1.4em;
    font-size: 0.92rem;
    font-weight: 500;
}
.site-nav a:hover { color: var(--accent-soft); text-decoration: none; }

/* ── Page grid (sidebar + main) ──────────────────────────────── */
.page {
    display: grid;
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 3rem;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
}


main {
    max-width: 46rem;
    margin: 2.5rem 0;
    padding: 0 0.25rem;
}

.page > * { min-width: 0; }

main > :first-child { margin-top: 0; }

/* ── Nav: kill all bullets ──────────────────────────────────── */
.docs-nav ul,
.docs-nav ol {
    list-style: none;
    padding: 0;
    margin: 0;
}
.docs-nav li { list-style: none; }
.docs-nav li::marker { content: ""; }

/* ── Sidebar: stays in view below the sticky site header ───── */
.docs-nav {
    position: sticky;
    top: 3.5rem;
    align-self: start;
    max-height: calc(100vh - 3.5rem);
    overflow-y: auto;
    padding: 2.5rem 1rem 2rem 0;
    border-right: 1px solid var(--border);
    font-size: 0.95rem;
}

.docs-nav > ul > li + li { margin-top: 0.15rem; }

.docs-nav > ul > li > a {
    display: block;
    padding: 0.4rem 0.75rem;
    border-radius: 6px;
    color: var(--muted);
    font-weight: 500;
    text-decoration: none;
}

.docs-nav > ul > li > a:hover {
    color: var(--fg);
    background: color-mix(in srgb, var(--fg) 6%, transparent);
}

.docs-nav > ul > li > a.active {
    color: var(--fg);
    background: color-mix(in srgb, var(--accent-soft) 22%, transparent);
    box-shadow: inset 2px 0 0 var(--accent-soft);
}

/* ── Collapsible nav (details/summary) ──────────────────────── */
.docs-nav details { margin: 0; }

/* Top-level dropdown headers - match .top-link weight/sizing */
.docs-nav .section > details > summary {
    display: flex;
    align-items: center;
    gap: 0.55em;
    padding: 0.4em 0.75em;
    margin: 0.05em 0;
    color: var(--fg);
    font-family: var(--font-sans);
    font-size: 0.93rem;
    font-weight: 600;
    text-transform: none;
    letter-spacing: normal;
    cursor: pointer;
    user-select: none;
    border-radius: var(--radius-sm);
    list-style: none;
    transition: background-color 0.12s, color 0.12s;
}
.docs-nav details > summary::-webkit-details-marker { display: none; }
.docs-nav details > summary::marker { content: ""; }

.docs-nav .section > details > summary:hover {
    background: var(--elevated);
    color: var(--fg);
}

/* Chevron - pure CSS, rotates on open */
.docs-nav details > summary::before {
    content: "";
    flex-shrink: 0;
    width: 0.4em;
    height: 0.4em;
    border-right: 1.5px solid currentColor;
    border-bottom: 1.5px solid currentColor;
    transform: rotate(-45deg);
    transition: transform 0.18s ease;
    opacity: 0.75;
}
.docs-nav details[open] > summary::before { transform: rotate(45deg); }

/* Lists inside details */
.docs-nav details > ul {
    margin: 0.15em 0 0.4em 0.85em;
    padding-left: 0.65em;
    border-left: 1px solid var(--border);
}

/* Leaf links inside details */
.docs-nav details > ul a {
    display: block;
    padding: 0.35em 0.75em;
    margin: 0.05em 0;
    color: var(--muted);
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-size: 0.92rem;
    transition: color 0.12s, background-color 0.12s;
}
.docs-nav details > ul a:hover {
    background: var(--elevated);
    color: var(--fg);
    text-decoration: none;
}
.docs-nav details > ul a.active {
    background: var(--elevated);
    color: var(--accent-soft);
    font-weight: 600;
}

/* Nested subsection summaries - slightly lighter */
.docs-nav .subsection > details > summary {
    display: flex;
    align-items: center;
    gap: 0.55em;
    padding: 0.32em 0.75em;
    margin: 0.05em 0;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--muted);
    cursor: pointer;
    user-select: none;
    border-radius: var(--radius-sm);
    list-style: none;
    transition: background-color 0.12s, color 0.12s;
}
.docs-nav .subsection > details > summary:hover {
    background: var(--elevated);
    color: var(--fg);
}

/* Per-product accent on subsection rule */
.docs-nav .subsection[data-product="numstore"]   > details > ul { border-left-color: var(--product-numstore); }
.docs-nav .subsection[data-product="smartfiles"] > details > ul { border-left-color: var(--product-smartfiles); }
.docs-nav .subsection[data-product="enterprise"] > details > ul { border-left-color: var(--product-enterprise); }

/* Wide tables scroll sideways inside themselves instead of widening the page. */
table {
    display: block;
    max-width: 100%;
    overflow-x: auto;
}

/* One column on narrow screens: the nav sits above the page. */
@media (max-width: 800px) {
    .page {
        grid-template-columns: minmax(0, 1fr);
        gap: 0;
    }
    .docs-nav {
        position: static;
        max-height: none;
        padding: 1rem 0;
        border-right: 0;
        border-bottom: 1px solid var(--border);
    }
    main { margin-top: 1.5rem; overflow-wrap: anywhere; }
    .docs-nav > ul {
        display: flex;
        flex-wrap: wrap;
        gap: 0.25rem;
    }
}