/* JeriCommerce Docs — Theme Variables
   Edit this file to change site colors. Rebuild with `python build.py`. */

:root {
    /* Primary (UI chrome: sidebar, tabs, TOC, borders) */
    --color-primary: #1C1C1C;
    --color-primary-light: #4B5563;
    --color-primary-dark: #000000;

    /* Accent (CTA buttons, links, active highlights) */
    --color-accent: #7000FF;
    --color-accent-light: #9B4DFF;
    --color-accent-subtle: rgba(112, 0, 255, 0.08);

    /* Backgrounds */
    --color-bg: #FFFFFF;
    --color-bg-secondary: #F9FAFB;
    --color-bg-tertiary: #F3F4F6;

    /* Text */
    --color-text: #111827;
    --color-text-secondary: #6B7280;
    --color-text-tertiary: #9CA3AF;

    /* Borders */
    --color-border: #E5E7EB;
    --color-border-light: #F3F4F6;
}

[data-theme="dark"] {
    --color-primary: #FFFFFF;
    --color-primary-light: #D1D5DB;
    --color-primary-dark: #F9FAFB;

    --color-accent: #9B4DFF;
    --color-accent-light: #B57FFF;
    --color-accent-subtle: rgba(155, 77, 255, 0.12);

    --color-bg: #111111;
    --color-bg-secondary: #191919;
    --color-bg-tertiary: #222222;

    --color-text: #F9FAFB;
    --color-text-secondary: #9CA3AF;
    --color-text-tertiary: #6B7280;

    --color-border: #2D2D2D;
    --color-border-light: #222222;
}

/* JeriDocs — Mintlify-replica static documentation theme */

/* ── Reset & Base ────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --color-primary: #7000FF;
    --color-primary-light: #9B4DFF;
    --color-primary-dark: #5200CC;
    --color-bg: #FFFFFF;
    --color-bg-secondary: #F9FAFB;
    --color-bg-tertiary: #F3F4F6;
    --color-text: #111827;
    --color-text-secondary: #6B7280;
    --color-text-tertiary: #9CA3AF;
    --color-border: #E5E7EB;
    --color-border-light: #F3F4F6;
    --font-heading: 'Inter', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-code: 'JetBrains Mono', monospace;
    --sidebar-width: 260px;
    --toc-width: 220px;
    --topbar-height: 60px;
    --content-max-width: 768px;
    --radius: 8px;
    --radius-sm: 6px;
    --color-accent-fg: var(--color-accent);
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
    --transition: 150ms ease;
}

[data-theme="dark"] {
    --color-bg: #111111;
    --color-bg-secondary: #191919;
    --color-bg-tertiary: #222222;
    --color-text: #F9FAFB;
    --color-text-secondary: #9CA3AF;
    --color-text-tertiary: #6B7280;
    --color-border: #2D2D2D;
    --color-border-light: #222222;
    --color-accent-fg: #9B4DFF;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
    --shadow: 0 1px 3px rgba(0,0,0,0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.5);
}

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--topbar-height) + 24px); }
body {
    font-family: var(--font-body);
    font-size: 15px;
    line-height: 1.7;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ── Topbar ──────────────────────────────────────────────────── */
.topbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: var(--topbar-height);
    background: rgba(255,255,255,0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    z-index: 100;
}
[data-theme="dark"] .topbar { background: rgba(17,17,17,0.8); }

.topbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: 100%;
    padding: 0 24px;
}
.topbar-left { display: flex; align-items: center; gap: 16px; }
.topbar-center { display: flex; align-items: center; gap: 4px; }
.topbar-right { display: flex; align-items: center; gap: 12px; }

.topbar-logo { display: flex; align-items: center; text-decoration: none; }
.topbar-logo svg, .footer-logo svg { height: 28px; width: auto; }
[data-theme="dark"] .logo-text { fill: #D4D4D4; }
[data-theme="dark"] .logo-sub { fill: #B0B0B0; }

.topbar-link {
    padding: 6px 12px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-secondary);
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: color var(--transition), background var(--transition);
}
.topbar-link:hover { color: var(--color-text); background: var(--color-bg-secondary); }

.topbar-cta {
    display: inline-flex;
    align-items: center;
    padding: 7px 16px;
    font-size: 13px;
    font-weight: 600;
    color: #fff;
    background: var(--color-accent);
    border-radius: var(--radius);
    text-decoration: none;
    transition: background var(--transition), transform var(--transition);
}
.topbar-cta:hover { background: var(--color-accent); opacity: 0.85; transform: translateY(-1px); }

.mobile-menu-btn {
    display: none;
    background: none; border: none; cursor: pointer;
    color: var(--color-text);
    padding: 4px;
}

/* ── Search ──────────────────────────────────────────────────── */
.search-trigger {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    cursor: pointer;
    color: var(--color-text-tertiary);
    font-size: 13px;
    font-family: var(--font-body);
    transition: border-color var(--transition);
    min-width: 200px;
}
.search-trigger:hover { border-color: var(--color-text-tertiary); }
.search-trigger kbd {
    margin-left: auto;
    font-size: 11px;
    padding: 2px 6px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-family: var(--font-body);
    color: var(--color-text-tertiary);
}

.search-modal { display: none; position: fixed; inset: 0; z-index: 200; }
.search-modal.active { display: flex; align-items: flex-start; justify-content: center; padding-top: 20vh; }
.search-backdrop { position: absolute; inset: 0; background: rgba(0,0,0,0.5); }
.search-dialog {
    position: relative;
    width: 90%; max-width: 640px;
    background: var(--color-bg);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    border: 1px solid var(--color-border);
}
.search-input-wrapper {
    display: flex; align-items: center; gap: 12px;
    padding: 16px 20px;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text-tertiary);
}
.search-input-wrapper input {
    flex: 1;
    border: none; outline: none;
    font-size: 16px;
    font-family: var(--font-body);
    background: transparent;
    color: var(--color-text);
}
.search-kbd {
    font-size: 11px; padding: 2px 8px;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    color: var(--color-text-tertiary);
}
.search-results { max-height: 400px; overflow-y: auto; }
.search-result-item {
    display: block;
    padding: 12px 20px;
    text-decoration: none;
    color: var(--color-text);
    border-bottom: 1px solid var(--color-border-light);
    transition: background var(--transition);
}
.search-result-item:hover, .search-result-item.active { background: var(--color-bg-secondary); }
.search-result-title { font-weight: 600; font-size: 14px; }
.search-result-desc { font-size: 13px; color: var(--color-text-secondary); margin-top: 2px; }
.search-result-path { font-size: 12px; color: var(--color-text-tertiary); margin-top: 4px; }
.search-empty { padding: 40px 20px; text-align: center; color: var(--color-text-tertiary); font-size: 14px; }

/* ── Theme Toggle ────────────────────────────────────────────── */
.theme-toggle {
    display: flex; align-items: center; justify-content: center;
    width: 32px; height: 32px;
    background: none; border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    cursor: pointer; color: var(--color-text-secondary);
    transition: color var(--transition), border-color var(--transition);
}
.theme-toggle:hover { color: var(--color-text); border-color: var(--color-text-tertiary); }
.theme-icon-dark { display: none; }
[data-theme="dark"] .theme-icon-light { display: none; }
[data-theme="dark"] .theme-icon-dark { display: flex; }

/* ── Layout ──────────────────────────────────────────────────── */
.layout {
    display: flex;
    margin-top: var(--topbar-height);
    min-height: calc(100vh - var(--topbar-height));
}

/* ── Sidebar ─────────────────────────────────────────────────── */
.sidebar {
    position: fixed;
    top: var(--topbar-height);
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    overflow-y: auto;
    padding: 20px 16px;
    border-right: 1px solid var(--color-border);
    background: var(--color-bg);
    z-index: 50;
    scrollbar-width: thin;
    scrollbar-color: var(--color-border) transparent;
}
.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 2px; }

.sidebar-nav { display: flex; flex-direction: column; gap: 24px; }

.nav-group-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-secondary);
    padding: 0 8px;
    margin-bottom: 4px;
}
.nav-group-icon { display: flex; color: var(--color-text-tertiary); }
.nav-group-icon svg { width: 14px; height: 14px; }

.nav-list { list-style: none; display: flex; flex-direction: column; gap: 1px; }

.nav-item a {
    display: block;
    padding: 6px 8px 6px 12px;
    font-size: 14px;
    color: var(--color-text-secondary);
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: color var(--transition), background var(--transition);
    border-left: 2px solid transparent;
}
.nav-item a:hover { color: var(--color-text); background: var(--color-bg-secondary); }
.nav-item.active a {
    color: var(--color-accent-fg);
    background: var(--color-accent-subtle, color-mix(in srgb, var(--color-accent-fg) 8%, transparent));
    border-left-color: var(--color-accent-fg);
    font-weight: 500;
}

.nav-nested summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 8px 6px 12px;
    font-size: 14px;
    color: var(--color-text-secondary);
    cursor: pointer;
    border-radius: var(--radius-sm);
    list-style: none;
    transition: color var(--transition);
}
.nav-nested summary::-webkit-details-marker { display: none; }
.nav-nested summary:hover { color: var(--color-text); }
.nav-chevron { transition: transform var(--transition); }
.nav-nested details[open] > summary .nav-chevron { transform: rotate(90deg); }
.nav-list-nested { padding-left: 12px; margin-top: 2px; }

/* ── Content ─────────────────────────────────────────────────── */
.content {
    flex: 1;
    margin-left: var(--sidebar-width);
    margin-right: var(--toc-width);
    padding: 40px 48px 80px;
    min-width: 0;
    display: flex;
    justify-content: center;
}
.article { width: 100%; max-width: var(--content-max-width); }

.article-header { margin-bottom: 32px; padding-bottom: 24px; border-bottom: 1px solid var(--color-border); }
.article-title {
    font-family: var(--font-heading);
    font-size: 32px;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--color-text);
    margin-bottom: 8px;
}
.article-description {
    font-size: 16px;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* ── Article Body Typography ─────────────────────────────────── */
.article-body h2 {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 600;
    margin-top: 48px;
    margin-bottom: 16px;
    letter-spacing: -0.01em;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--color-border-light);
}
.article-body h3 {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 600;
    margin-top: 32px;
    margin-bottom: 12px;
}
.article-body h4 {
    font-family: var(--font-heading);
    font-size: 16px;
    font-weight: 600;
    margin-top: 24px;
    margin-bottom: 8px;
}
.article-body p { margin-bottom: 16px; }
.article-body a { color: var(--color-accent-fg); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 2px; }
.article-body a:hover { text-decoration-thickness: 2px; }
.article-body a.card { text-decoration: none; color: inherit; }
.article-body a.card:hover { text-decoration: none; }
.article-body strong { font-weight: 600; }
.article-body ul, .article-body ol { margin-bottom: 16px; padding-left: 24px; }
.article-body li { margin-bottom: 6px; }
.article-body li > p { margin-bottom: 6px; }
.article-body blockquote {
    border-left: 3px solid var(--color-accent-fg);
    padding: 12px 16px;
    margin: 16px 0;
    color: var(--color-text-secondary);
    background: var(--color-bg-secondary);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.article-body img { max-width: 100%; height: auto; border-radius: var(--radius); margin: 0; display: block; }
.article-body figure { text-align: center; margin: 24px 0; }
.article-body figure img { margin: 0 auto; }
.article-body figcaption { font-size: 13px; color: var(--color-text-tertiary); margin-top: 8px; text-align: center; }
.article-body hr { border: none; border-top: 1px solid var(--color-border); margin: 32px 0; }
.article-body code {
    font-family: var(--font-code);
    font-size: 0.875em;
    padding: 2px 6px;
    background: var(--color-bg-tertiary);
    border-radius: 4px;
    color: var(--color-accent-fg);
}
.article-body pre { margin: 16px 0; }
.article-body pre code {
    display: block;
    padding: 16px 20px;
    background: #1a1b26;
    color: #a9b1d6;
    border-radius: var(--radius);
    overflow-x: auto;
    font-size: 13px;
    line-height: 1.6;
}
[data-theme="dark"] .article-body code { background: var(--color-bg-tertiary); }

/* Heading anchors */
.heading-anchor { opacity: 0; margin-left: 8px; color: var(--color-text-tertiary); text-decoration: none; font-weight: 400; }
h2:hover .heading-anchor, h3:hover .heading-anchor, h4:hover .heading-anchor { opacity: 1; }

/* Tables */
.article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 16px 0;
    font-size: 14px;
}
.article-body th, .article-body td {
    padding: 10px 16px;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}
.article-body th {
    font-weight: 600;
    background: var(--color-bg-secondary);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--color-text-secondary);
}
.article-body tr:hover td { background: var(--color-bg-secondary); }

/* ── Callouts ────────────────────────────────────────────────── */
.callout {
    display: flex;
    gap: 12px;
    padding: 16px;
    margin: 16px 0;
    border-radius: 0 var(--radius) var(--radius) 0;
    border-left: 3px solid var(--callout-color);
    background: var(--callout-bg);
}
[data-theme="dark"] .callout { background: var(--callout-bg-dark); }
.callout-icon { flex-shrink: 0; color: var(--callout-color); margin-top: 1px; }
.callout-content { flex: 1; }
.callout-content p:last-child { margin-bottom: 0; }

/* ── Tabs ────────────────────────────────────────────────────── */
.tabs-container { margin: 16px 0; border: 1px solid var(--color-border); border-radius: var(--radius); overflow: hidden; }
.tabs-header {
    display: flex;
    border-bottom: 1px solid var(--color-border);
    background: var(--color-bg-secondary);
    overflow-x: auto;
}
.tab-btn {
    padding: 10px 20px;
    font-size: 13px;
    font-weight: 500;
    font-family: var(--font-body);
    color: var(--color-text-secondary);
    background: none;
    border: none;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: color var(--transition), border-color var(--transition);
    white-space: nowrap;
}
.tab-btn:hover { color: var(--color-text); }
.tab-btn.active { color: var(--color-accent-fg); border-bottom-color: var(--color-accent-fg); }
.tab-panel { display: none; padding: 16px 20px; }
.tab-panel.active { display: block; }

/* ── Cards ───────────────────────────────────────────────────── */
.card-group {
    display: grid;
    grid-template-columns: repeat(var(--card-cols, 2), 1fr);
    gap: 12px;
    margin: 16px 0;
}
.card {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    text-decoration: none;
    color: inherit;
    transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
a.card:hover { border-color: var(--color-accent-fg); box-shadow: var(--shadow); transform: translateY(-1px); }
.card-icon { flex-shrink: 0; color: var(--color-accent-fg); margin-top: 2px; }
.card-body { flex: 1; min-width: 0; }
.card-title { font-size: 15px; font-weight: 600; margin-bottom: 4px; }
.card-description { font-size: 13px; color: var(--color-text-secondary); line-height: 1.5; margin: 0; }
.card-arrow { flex-shrink: 0; color: var(--color-text-tertiary); margin-top: 2px; opacity: 0; transition: opacity var(--transition); }
a.card:hover .card-arrow { opacity: 1; }

/* ── Accordion ───────────────────────────────────────────────── */
.accordion-group { margin: 16px 0; display: flex; flex-direction: column; }
.accordion-group .accordion { border-radius: 0; margin: 0; margin-top: -1px; }
.accordion-group .accordion:first-child { border-radius: var(--radius) var(--radius) 0 0; margin-top: 0; }
.accordion-group .accordion:last-child { border-radius: 0 0 var(--radius) var(--radius); }
.accordion {
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    margin: 8px 0;
}
.accordion-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    cursor: pointer;
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text);
    list-style: none;
    transition: background var(--transition);
}
.accordion-header::-webkit-details-marker { display: none; }
.accordion-header:hover { background: var(--color-bg-secondary); }
.accordion-chevron { display: flex; align-items: center; transition: transform var(--transition); color: var(--color-text-tertiary); flex-shrink: 0; }
.accordion[open] .accordion-chevron { transform: rotate(90deg); }
.accordion-content { padding: 0 16px 16px; }

/* ── Steps ───────────────────────────────────────────────────── */
.steps { margin: 16px 0; }
.step { display: flex; gap: 16px; position: relative; }
.step:not(:last-child) { padding-bottom: 24px; }
.step:not(:last-child)::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 36px;
    bottom: 0;
    width: 2px;
    background: var(--color-border);
}
.step-number {
    flex-shrink: 0;
    width: 32px; height: 32px;
    display: flex; align-items: center; justify-content: center;
    background: var(--color-accent);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    border-radius: 50%;
}
.step-body { flex: 1; padding-top: 4px; }
.step-title { font-size: 16px; font-weight: 600; margin-bottom: 8px; }
.step-content { color: var(--color-text-secondary); }

/* ── Code Group ──────────────────────────────────────────────── */
.code-group { margin: 16px 0; border-radius: var(--radius); overflow: hidden; border: 1px solid #2D2D2D; background: #1a1b26; }
.code-group pre { margin: 0; }
.code-group pre code { border-radius: 0; }
.code-group-header {
    display: flex;
    background: #1a1b26;
    border-bottom: 1px solid #2D2D2D;
}
.code-tab {
    padding: 8px 16px;
    font-size: 12px;
    font-family: var(--font-code);
    color: #6B7280;
    background: none;
    border: none;
    cursor: pointer;
    border-bottom: 2px solid transparent;
}
.code-tab.active { color: #a9b1d6; border-bottom-color: var(--color-accent-fg); }
.code-panel { display: none; }
.code-panel.active { display: block; }
.code-panel pre { margin: 0; }
.code-panel code { border-radius: 0; }

/* ── Frame ───────────────────────────────────────────────────── */
.frame { margin: 24px 0; }
.frame-content { border: 1px solid var(--color-border); border-radius: var(--radius); overflow: hidden; }
.frame-content img { display: block; width: 100%; margin: 0; border-radius: 0; }
.frame-caption { font-size: 13px; color: var(--color-text-tertiary); text-align: center; margin-top: 8px; }

/* ── Badge ───────────────────────────────────────────────────── */
.badge {
    display: inline-flex;
    padding: 2px 8px;
    font-size: 11px;
    font-weight: 600;
    border-radius: 9999px;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}
.badge-default { background: var(--color-bg-tertiary); color: var(--color-text-secondary); }
.badge-info { background: #DBEAFE; color: #1D4ED8; }
.badge-warning { background: #FEF3C7; color: #92400E; }
.badge-success { background: #D1FAE5; color: #065F46; }
.badge-error { background: #FEE2E2; color: #991B1B; }
[data-theme="dark"] .badge-info { background: #1E3A5F; color: #93C5FD; }
[data-theme="dark"] .badge-warning { background: #3D2E00; color: #FCD34D; }
[data-theme="dark"] .badge-success { background: #0D3320; color: #6EE7B7; }
[data-theme="dark"] .badge-error { background: #3B0F0F; color: #FCA5A5; }

/* ── Tooltip ─────────────────────────────────────────────────── */
.tooltip {
    position: relative;
    text-decoration: underline dotted;
    text-underline-offset: 3px;
    cursor: help;
}
.tooltip::after {
    content: attr(data-tip);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    padding: 6px 10px;
    background: var(--color-text);
    color: var(--color-bg);
    font-size: 12px;
    border-radius: var(--radius-sm);
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--transition);
}
.tooltip:hover::after { opacity: 1; }

/* ── TOC Sidebar ─────────────────────────────────────────────── */
.toc-sidebar {
    position: fixed;
    top: var(--topbar-height);
    right: 0;
    bottom: 0;
    width: var(--toc-width);
    padding: 32px 16px 32px 0;
    overflow-y: auto;
}
.toc-title {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-secondary);
    margin-bottom: 12px;
    padding-left: 12px;
}
.toc-list { list-style: none; }
.toc-item { margin-bottom: 2px; }
.toc-link {
    display: block;
    padding: 4px 12px;
    font-size: 13px;
    color: var(--color-text-tertiary);
    text-decoration: none;
    border-left: 2px solid transparent;
    transition: color var(--transition), border-color var(--transition);
}
.toc-link:hover { color: var(--color-text); }
.toc-link.active { color: var(--color-accent-fg); border-left-color: var(--color-accent-fg); }
.toc-indent { padding-left: 12px; }

/* ── Page Navigation ─────────────────────────────────────────── */
.page-nav-container {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin-top: 48px;
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
}
.page-nav {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    text-decoration: none;
    color: inherit;
    transition: border-color var(--transition), box-shadow var(--transition);
    flex: 1;
}
.page-nav:hover { border-color: var(--color-accent-fg); box-shadow: var(--shadow-sm); }
.page-nav-prev { justify-content: flex-start; }
.page-nav-next { justify-content: flex-end; text-align: right; }
.page-nav-label { display: block; font-size: 12px; color: var(--color-text-tertiary); margin-bottom: 2px; }
.page-nav-title { display: block; font-size: 14px; font-weight: 500; }

/* ── Footer ──────────────────────────────────────────────────── */
.footer-inner { max-width: 900px; margin: 0 auto; }
.footer-top { display: flex; justify-content: space-between; gap: 40px; padding-bottom: 24px; border-bottom: 1px solid var(--color-border); }
.footer-brand { max-width: 300px; }
.footer-logo { display: inline-block; margin-bottom: 12px; }
.footer-logo img { height: 24px; width: auto; }
.footer-tagline { font-size: 13px; color: var(--color-text-tertiary); line-height: 1.5; margin: 0; }
.footer-links { display: flex; gap: 48px; }
.footer-links-group { display: flex; flex-direction: column; gap: 8px; }
.footer-links-group h4 { font-size: 13px; font-weight: 600; color: var(--color-text); margin: 0 0 4px; }
.footer-links-group a { font-size: 13px; color: var(--color-text-secondary); text-decoration: none; transition: color var(--transition); }
.footer-links-group a:hover { color: var(--color-accent-fg); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding-top: 20px; }
.footer-bottom span { font-size: 12px; color: var(--color-text-tertiary); }
.footer-socials { display: flex; gap: 12px; }
.footer-social { color: var(--color-text-tertiary); transition: color var(--transition); }
.footer-social:hover { color: var(--color-accent-fg); }
.footer {
    margin-left: var(--sidebar-width);
    margin-right: var(--toc-width);
    border-top: 1px solid var(--color-border);
    padding: 40px 48px;
}

/* ── Sidebar Overlay (mobile) ────────────────────────────────── */
.sidebar-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 40; }

/* ── Code Highlighting (Pygments) ────────────────────────────── */
.codehilite { margin: 16px 0; border-radius: var(--radius); overflow: hidden; position: relative; }
.codehilite pre {
    margin: 0;
    padding: 16px 20px;
    background: #1a1b26;
    color: #a9b1d6;
    overflow-x: auto;
    font-family: var(--font-code);
    font-size: 13px;
    line-height: 1.6;
}
/* Copy button for code blocks */
.code-copy-btn {
    position: absolute;
    top: 8px; right: 8px;
    background: rgba(255,255,255,0.1);
    border: none;
    color: #6B7280;
    cursor: pointer;
    padding: 6px;
    border-radius: 4px;
    display: flex; align-items: center; justify-content: center;
    opacity: 0;
    transition: opacity var(--transition), background var(--transition);
}
.codehilite:hover .code-copy-btn { opacity: 1; }
.code-copy-btn:hover { background: rgba(255,255,255,0.2); color: #fff; }
.code-copy-btn.copied { color: #22C55E; }

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 1280px) {
    .toc-sidebar { display: none; }
    .content { margin-right: 0; }
    .footer { margin-right: 0; }
}

@media (max-width: 768px) {
    .mobile-menu-btn { display: flex; }
    .topbar-center { display: none; }
    .topbar-cta { display: none; }
    .search-trigger span { display: none; }
    .search-trigger kbd { display: none; }
    .search-trigger { min-width: auto; padding: 8px; }
    
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.25s ease;
        z-index: 50;
    }
    .sidebar.open { transform: translateX(0); }
    .sidebar-overlay.active { display: block; }
    
    .content { margin-left: 0; padding: 24px 20px 60px; }
    .footer { margin-left: 0; padding: 32px 20px; }
    .footer-top { flex-direction: column; gap: 24px; }
    .footer-bottom { flex-direction: column; gap: 12px; align-items: center; }
    
    .article-title { font-size: 26px; }
    .card-group { grid-template-columns: 1fr; }
    .page-nav-container { flex-direction: column; }
}