/* Indexable AI — Brand Overrides & Layout */
@import url('https://fonts.googleapis.com/css2?family=Open+Sans:wght@400;500;600;700;800&family=Space+Mono:wght@400;700&display=swap');

:root {
    --idx-blue: #2563EB;
    --idx-purple: #7C3AED;
    --idx-magenta: #DB0EB7;
    --idx-gradient: linear-gradient(135deg, #2563EB, #7C3AED);
    --idx-text: #111827;
    --idx-body: #374151;
    --idx-muted: #6B7280;
    --idx-border: #E5E7EB;
    --idx-bg: #FFFFFF;
    --idx-bg-light: #F9FAFB;
    --idx-bg-alt: #F3F4F6;
    --idx-mono: 'Space Mono', monospace;
    --idx-sans: 'Open Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --idx-sidebar-width: 260px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    font-family: var(--idx-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--idx-body);
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
}

/* ── Top Bar ─────────────────────────────────────────── */
.idx-topbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 56px;
    background: #fff;
    border-bottom: 1px solid var(--idx-border);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
}
.idx-topbar-logo {
    font-family: var(--idx-mono);
    font-size: 18px;
    font-weight: 700;
    color: var(--idx-text);
    text-decoration: none;
    letter-spacing: -0.02em;
}
.idx-topbar-logo:hover { color: var(--idx-blue); }
.idx-topbar-right { display: flex; align-items: center; gap: 16px; }
.idx-topbar-cta {
    display: inline-flex;
    align-items: center;
    padding: 8px 20px;
    background: var(--idx-gradient);
    color: #fff !important;
    font-size: 13px;
    font-weight: 600;
    border-radius: 8px;
    text-decoration: none;
    transition: opacity 0.2s;
}
.idx-topbar-cta:hover { opacity: 0.9; }
.idx-topbar-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    color: var(--idx-text);
}
.idx-topbar-toggle svg { display: block; }

/* ── Sidebar ─────────────────────────────────────────── */
.idx-sidebar {
    position: fixed;
    top: 56px;
    left: 0;
    bottom: 0;
    width: var(--idx-sidebar-width);
    background: var(--idx-bg-light);
    border-right: 1px solid var(--idx-border);
    overflow-y: auto;
    overflow-x: hidden;
    z-index: 900;
    padding: 20px 0;
    transition: transform 0.3s ease;
}
.idx-sidebar-section-label {
    font-family: var(--idx-mono);
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--idx-muted);
    padding: 16px 20px 6px;
    display: block;
}
.idx-sidebar ul {
    list-style: none;
    margin: 0;
    padding: 0;
}
.idx-sidebar > nav > ul > li > a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--idx-text);
    text-decoration: none;
    transition: background 0.15s, color 0.15s;
    border-left: 3px solid transparent;
}
.idx-sidebar > nav > ul > li > a:hover {
    background: var(--idx-bg-alt);
    color: var(--idx-blue);
}
.idx-sidebar > nav > ul > li > a.active {
    color: var(--idx-blue);
    border-left-color: var(--idx-blue);
    background: rgba(37, 99, 235, 0.05);
    font-weight: 600;
}
/* Sub-items */
.idx-sidebar ul ul {
    display: none;
    padding-left: 0;
}
.idx-sidebar ul ul.open { display: block; }
.idx-sidebar ul ul a {
    display: block;
    padding: 6px 20px 6px 36px;
    font-size: 13px;
    font-weight: 400;
    color: var(--idx-body);
    text-decoration: none;
    transition: color 0.15s, background 0.15s;
}
.idx-sidebar ul ul a:hover {
    color: var(--idx-blue);
    background: var(--idx-bg-alt);
}
.idx-sidebar ul ul a.active {
    color: var(--idx-blue);
    font-weight: 600;
}
/* Expand arrow */
.idx-expand-arrow {
    font-size: 10px;
    transition: transform 0.2s;
    color: var(--idx-muted);
}
.idx-expand-arrow.open { transform: rotate(90deg); }

/* Sidebar divider */
.idx-sidebar-divider {
    border: none;
    border-top: 1px solid var(--idx-border);
    margin: 16px 20px;
}

/* On This Page TOC */
.idx-sidebar-toc-label {
    font-family: var(--idx-mono);
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--idx-muted);
    padding: 8px 20px 4px;
}
.idx-sidebar-toc { list-style: none; margin: 0; padding: 0; }
.idx-sidebar-toc li a {
    display: block;
    padding: 4px 20px;
    font-size: 12px;
    color: var(--idx-muted);
    text-decoration: none;
    transition: color 0.15s;
    line-height: 1.4;
}
.idx-sidebar-toc li a:hover { color: var(--idx-blue); }
.idx-sidebar-toc .idx-sidebar-toc-h3 a { padding-left: 32px; font-size: 11px; }

/* ── Global CTA Buttons ──────────────────────────────── */
/* Primary button (gradient) — covers all page-specific variants */
.idx-btn-p, .idx-btn.idx-btn-p,
.idx-hiw-btn-p, .idx-hiw-btn-light,
.idx-agseo-btn.idx-agseo-btn-p, .idx-agseo-cta-btn,
.idx-vs-btn.idx-vs-btn-p,
.idx-auto-btn.idx-auto-btn-p, .idx-auto-cta-btn,
.idx-aiviz-btn.idx-aiviz-btn-p, .idx-aiviz-cta-btn,
.idx-vp-btn.idx-vp-btn-p,
[class*="-btn-p"],
[class*="-cta-btn"]:not([class*="-ghost"]) {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 8px;
    padding: 14px 32px !important;
    background: var(--idx-gradient) !important;
    color: #FFFFFF !important;
    font-family: var(--idx-sans);
    font-size: 15px !important;
    font-weight: 700 !important;
    border-radius: 10px;
    text-decoration: none !important;
    border: none;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s, opacity 0.2s;
    line-height: 1.4;
}
[class*="-btn-p"]:hover,
[class*="-cta-btn"]:not([class*="-ghost"]):hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(37, 99, 235, 0.3);
    opacity: 0.95;
    color: #FFFFFF !important;
    text-decoration: none !important;
}

/* Secondary button (outlined) */
.idx-btn-s, .idx-btn.idx-btn-s,
.idx-hiw-btn-s,
.idx-vs-btn.idx-vs-btn-s,
.idx-auto-btn.idx-auto-btn-s,
.idx-aiviz-btn.idx-aiviz-btn-s,
[class*="-btn-s"] {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 8px;
    padding: 14px 32px !important;
    background: transparent !important;
    color: var(--idx-blue) !important;
    font-family: var(--idx-sans);
    font-size: 15px !important;
    font-weight: 700 !important;
    border-radius: 10px;
    border: 2px solid var(--idx-blue) !important;
    text-decoration: none !important;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
    line-height: 1.4;
}
[class*="-btn-s"]:hover {
    background: var(--idx-blue) !important;
    color: #FFFFFF !important;
    text-decoration: none !important;
}

/* Ghost button (text link style) */
.idx-btn-ghost,
[class*="-btn-ghost"],
[class*="-cta-btn-ghost"] {
    display: inline-flex !important;
    align-items: center !important;
    gap: 6px;
    padding: 8px 0 !important;
    background: none !important;
    color: var(--idx-blue) !important;
    font-family: var(--idx-sans);
    font-size: 14px !important;
    font-weight: 600 !important;
    text-decoration: none !important;
    border: none !important;
    cursor: pointer;
    transition: color 0.2s;
}
[class*="-btn-ghost"]:hover,
.idx-btn-ghost:hover {
    color: var(--idx-purple) !important;
    text-decoration: underline !important;
}

/* CTA section containers */
.idx-hero-ctas,
.idx-cta-buttons,
[class*="-hero-ctas"],
[class*="-cta-buttons"] {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-top: 24px;
}

@media (max-width: 768px) {
    [class*="-btn-p"], [class*="-btn-s"],
    [class*="-cta-btn"]:not([class*="-ghost"]) {
        padding: 12px 24px !important;
        font-size: 14px !important;
        width: 100%;
        justify-content: center !important;
    }
    .idx-hero-ctas, .idx-cta-buttons,
    [class*="-hero-ctas"], [class*="-cta-buttons"] {
        flex-direction: column;
    }
}

/* ── Content Area ────────────────────────────────────── */
.idx-content {
    margin-left: var(--idx-sidebar-width);
    margin-top: 56px;
    min-height: calc(100vh - 56px);
    background: var(--idx-bg);
}
.idx-content main {
    max-width: 960px;
    margin: 0 auto;
    padding: 40px;
}

/* ── Footer ──────────────────────────────────────────── */
.idx-footer {
    background: var(--idx-bg-light);
    border-top: 1px solid var(--idx-border);
    padding: 48px 40px 24px;
}
.idx-footer-inner {
    max-width: 960px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}
.idx-footer-col h4 {
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--idx-text);
    margin: 0 0 16px;
}
.idx-footer-col ul { list-style: none; margin: 0; padding: 0; }
.idx-footer-col li { margin-bottom: 8px; }
.idx-footer-col a {
    font-size: 14px;
    color: var(--idx-muted);
    text-decoration: none;
    transition: color 0.15s;
}
.idx-footer-col a:hover { color: var(--idx-blue); }
.idx-footer-bottom {
    max-width: 960px;
    margin: 32px auto 0;
    padding-top: 24px;
    border-top: 1px solid var(--idx-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: var(--idx-muted);
}
.idx-footer-bottom a { color: var(--idx-muted); text-decoration: none; }
.idx-footer-bottom a:hover { color: var(--idx-blue); }

/* ── Mobile Overlay ──────────────────────────────────── */
.idx-overlay {
    display: none;
    position: fixed;
    top: 56px;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.3);
    z-index: 800;
}
.idx-overlay.open { display: block; }

/* ── Responsive ──────────────────────────────────────── */
@media (max-width: 1024px) {
    .idx-content main { padding: 32px 24px; }
}

@media (max-width: 768px) {
    .idx-topbar-toggle { display: block; }
    .idx-topbar-cta { display: none; }

    .idx-sidebar {
        transform: translateX(-100%);
        width: 280px;
        z-index: 950;
    }
    .idx-sidebar.open { transform: translateX(0); }

    .idx-content {
        margin-left: 0;
    }
    .idx-content main {
        padding: 24px 16px;
    }

    .idx-footer-inner {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .idx-footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
}

/* ── Typography polish ───────────────────────────────── */
.idx-content h1, .idx-content h2, .idx-content h3, .idx-content h4 {
    font-family: var(--idx-sans);
    color: var(--idx-text);
    letter-spacing: -0.02em;
}
.idx-content h1 { font-size: 42px; font-weight: 800; line-height: 1.1; margin-bottom: 24px; }
.idx-content h2 { font-size: 32px; font-weight: 800; line-height: 1.15; margin: 48px 0 16px; }
.idx-content h3 { font-size: 22px; font-weight: 700; line-height: 1.3; margin: 32px 0 12px; }
.idx-content h4 { font-size: 17px; font-weight: 700; line-height: 1.4; margin: 24px 0 8px; }
.idx-content p { margin: 0 0 16px; line-height: 1.7; }
.idx-content img { max-width: 100%; height: auto; border-radius: 8px; }
.idx-content table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 14px; }
.idx-content th { background: var(--idx-bg-alt); font-weight: 600; text-align: left; padding: 12px 16px; border-bottom: 2px solid var(--idx-border); }
.idx-content td { padding: 10px 16px; border-bottom: 1px solid var(--idx-border); }
.idx-content blockquote { border-left: 3px solid var(--idx-blue); margin: 24px 0; padding: 16px 24px; background: var(--idx-bg-alt); border-radius: 0 8px 8px 0; }
.idx-content a { color: var(--idx-blue); text-decoration: none; }
.idx-content a:hover { text-decoration: underline; }
.idx-content ul, .idx-content ol { margin: 0 0 16px; padding-left: 24px; }
.idx-content li { margin-bottom: 8px; line-height: 1.6; }

@media (max-width: 768px) {
    .idx-content h1 { font-size: 28px; }
    .idx-content h2 { font-size: 24px; }
    .idx-content h3 { font-size: 18px; }
    .idx-content table { font-size: 12px; }
    .idx-content th, .idx-content td { padding: 8px 10px; }
}