:root {
        --g: #8CC63F; --g-hover: #7ab033; --b: #29ABE2; --red: #f85149;
        --yellow: #e3b341; --bg: #0d1117; --card: #161b22; --border: #30363d;
        --text: #c9d1d9; --sub: #8b949e;
        --sans: 'Syne', system-ui, sans-serif; --mono: 'DM Mono', monospace;
    }
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0 }
    html { scroll-behavior: smooth }
    body { background: var(--bg); color: var(--text); font-family: var(--sans); min-height: 100vh; -webkit-font-smoothing: antialiased }

    .root { display: flex; min-height: 100vh }
    .sidebar { width: 340px; flex-shrink: 0; position: sticky; top: 0; height: 100vh; background: var(--card); border-right: 1px solid var(--border); z-index: 10; display: flex; flex-direction: column }
    .sidebar-inner { display: flex; flex-direction: column; gap: 1.25rem; padding: 2rem; height: 100%; overflow-y: auto }
    .logo-wrap { display: block; text-align: center; width: 100% }
    .logo-img { width: 150px; max-width: 100%; height: auto; object-fit: contain; margin-bottom: 0.5rem }
    .brand-block { display: flex; flex-direction: column; gap: 2px }
    .brand-name { font-size: 1.35rem; font-weight: 800; letter-spacing: -.02em; color: #fff }
    .brand-name em { color: var(--g); font-style: normal }
    .brand-tag { font-size:.75rem; color: var(--sub); letter-spacing:.02em }
    .side-features { display: flex; flex-direction: column; gap: 8px }
    .feature-pill { display: flex; align-items: center; gap: 10px; padding: 10px 14px; border-radius: 6px; font-size:.8rem; background: rgba(255,255,255,.02); border: 1px solid var(--border) }
    .feature-pill.info { border-color: rgba(41,171,226,.3); background: rgba(41,171,226,.05) }
    .pill-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--b); flex-shrink: 0 }
    .side-info p { font-size:.8rem; color: var(--sub); line-height: 1.6 }
    .side-nav { display: flex; flex-direction: column; gap: 4px; border-bottom: 1px solid var(--border); padding-bottom: 1rem }
    .side-nav-item { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: 7px; font-size:.82rem; font-weight: 600; color: var(--sub); text-decoration: none; transition: all.2s; border: 1px solid transparent }
    .side-nav-item:hover { color: #fff; background: rgba(255,255,255,.04); border-color: var(--border) }
    .side-nav-item.active { color: var(--g); background: rgba(140,198,63,.07); border-color: rgba(140,198,63,.25) }
    .side-nav-item svg { flex-shrink: 0; opacity:.8 }
    .ad-sidebar { margin-top: auto; min-height: 80px }

    .main { flex: 1; padding: 2.5rem 2rem 4rem; max-width: 900px; display: flex; flex-direction: column; gap: 1.5rem }
    @media(max-width:900px) { .sidebar { display: none } .main { max-width: 100%; padding: 1.5rem 1rem 3rem } }

    .card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; box-shadow: 0 4px 12px rgba(0,0,0,.1) }

    /* HERO */
    .hero-card { position: relative; padding: 2rem 2rem 1.5rem }
    .hero-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--b), var(--g)) }
    .hero-inner { display: flex; flex-direction: column; gap: 1.5rem }
    .card-eyebrow { display: block; font-size:.7rem; font-weight: 700; letter-spacing:.05em; color: var(--sub); text-transform: uppercase; margin-bottom: 6px }
    .card-title { font-size: 2rem; font-weight: 800; color: #fff; letter-spacing: -.02em; line-height: 1.2; margin-bottom: 10px }
    .hero-sub { font-size:.92rem; color: var(--sub); line-height: 1.75 }
    .hero-sub strong { color: var(--text) }
    .hero-stats { display: flex; gap: 1.5rem; flex-wrap: wrap }
    .stat { display: flex; flex-direction: column; gap: 2px }
    .stat-num { font-size: 1.5rem; font-weight: 800; color: var(--g); font-family: var(--mono) }
    .stat-label { font-size:.72rem; color: var(--sub) }

    /* CONTENT CARD */
    .content-card { position: relative }
    .content-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--b) }
    .content-header { padding: 1.5rem 2rem 0 }
    .section-title { font-size: 1.15rem; font-weight: 800; color: #fff; letter-spacing: -.01em; margin-bottom: 6px }
    .content-sub { font-size:.85rem; color: var(--sub); line-height: 1.6; padding-bottom: 1rem; border-bottom: 1px solid var(--border) }
    .content-body { padding: 1.5rem 2rem 2rem; display: flex; flex-direction: column; gap: 1.5rem }
    .content-body p { font-size:.88rem; color: var(--sub); line-height: 1.8 }

    /* COMPARE */
    .compare-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px }
    @media(max-width:650px) { .compare-grid { grid-template-columns: 1fr } }
    .compare-card { padding: 16px; border-radius: 10px; display: flex; flex-direction: column; gap: 10px }
    .compare-xml { background: rgba(41,171,226,.05); border: 1px solid rgba(41,171,226,.2) }
    .compare-danfe { background: rgba(140,198,63,.05); border: 1px solid rgba(140,198,63,.2) }
    .compare-card strong { font-size:.88rem; color: #fff }
    .compare-list { list-style: none; display: flex; flex-direction: column; gap: 6px }
    .compare-list li { font-size:.82rem; color: var(--sub); padding-left: 1.1rem; position: relative; line-height: 1.5 }
    .compare-list li::before { content: '→'; position: absolute; left: 0; color: var(--g); font-weight: 700; font-size:.8rem }
    .compare-list li strong { color: var(--text) }

    /* QUERY CARDS */
    .query-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px }
    @media(max-width:700px) { .query-grid { grid-template-columns: 1fr } }
    .query-card { padding: 14px; background: rgba(255,255,255,.02); border: 1px solid var(--border); border-radius: 8px; display: flex; flex-direction: column; gap: 8px }
    .query-tag { display: inline-block; padding: 3px 8px; border-radius: 4px; font-size:.72rem; font-weight: 700; font-family: var(--mono) }
    .tag-b { background: rgba(41,171,226,.12); color: var(--b); border: 1px solid rgba(41,171,226,.3) }
    .tag-g { background: rgba(140,198,63,.12); color: var(--g); border: 1px solid rgba(140,198,63,.3) }
    .tag-y { background: rgba(227,179,65,.12); color: var(--yellow); border: 1px solid rgba(227,179,65,.3) }
    .query-card strong { font-size:.85rem; color: #fff }
    .query-card p { font-size:.78rem; color: var(--sub); line-height: 1.5 }

    /* REQ GRID */
    .req-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px }
    @media(max-width:600px) { .req-grid { grid-template-columns: 1fr } }
    .req-item { display: flex; gap: 12px; padding: 14px; background: rgba(255,255,255,.02); border: 1px solid var(--border); border-radius: 8px; align-items: flex-start }
    .req-icon { font-size: 1.4rem; flex-shrink: 0; line-height: 1 }
    .req-item strong { font-size:.85rem; color: #fff; display: block; margin-bottom: 4px }
    .req-item p { font-size:.78rem; color: var(--sub); line-height: 1.5; margin: 0 }

    /* STEPS */
    .steps-grid { display: flex; flex-direction: column; gap: 1rem }
    .step-item { display: flex; gap: 1rem; align-items: flex-start }
    .step-num { width: 32px; height: 32px; border-radius: 50%; background: rgba(140,198,63,.12); border: 2px solid rgba(140,198,63,.3); color: var(--g); font-weight: 800; font-size:.9rem; display: flex; align-items: center; justify-content: center; flex-shrink: 0 }
    .step-item strong { font-size:.88rem; color: #fff; display: block; margin-bottom: 4px }
    .step-item p { font-size:.82rem; color: var(--sub); line-height: 1.6 }

    /* CTA INLINE */
    .cta-inline { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; padding: 1.25rem 1.5rem; background: rgba(41,171,226,.06); border: 1px solid rgba(41,171,226,.2); border-radius: 10px; flex-wrap: wrap }
    .cta-inline strong { font-size:.9rem; color: #fff; display: block; margin-bottom: 4px }
    .cta-inline p { font-size:.82rem; color: var(--sub); margin: 0 }
    .cta-green { background: rgba(140,198,63,.06); border-color: rgba(140,198,63,.2) }
    .btn-primary { white-space: nowrap; padding: 11px 20px; border-radius: 8px; border: none; background: var(--g); color: #0d1117; font-family: var(--sans); font-weight: 700; font-size:.9rem; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; gap: 6px; transition: background.2s }
    .btn-primary:hover { background: var(--g-hover) }

    /* INFO BOX */
    .info-box { display: flex; gap: 10px; padding: 14px 16px; background: rgba(41,171,226,.05); border: 1px solid rgba(41,171,226,.2); border-radius: 8px }
    .info-box p { font-size:.84rem; color: var(--sub); line-height: 1.6; margin: 0 }
    .info-box p strong { color: var(--text) }

    /* FAQ */
    .faq-list { display: flex; flex-direction: column; gap: 6px }
    .faq-item { background: rgba(255,255,255,.02); border: 1px solid var(--border); border-radius: 8px; overflow: hidden }
    .faq-item summary { padding: 14px 16px; font-size:.88rem; font-weight: 600; color: var(--text); cursor: pointer; list-style: none; display: flex; align-items: center; gap: 8px }
    .faq-item summary::before { content: '+'; color: var(--g); font-weight: 800; font-size: 1.1rem; flex-shrink: 0 }
    .faq-item[open] summary::before { content: '−' }
    .faq-item summary:hover { color: #fff }
    .faq-item p { padding: 0 16px 14px; font-size:.85rem; color: var(--sub); line-height: 1.7 }
    .faq-item a.link { color: var(--b); text-decoration: underline }

    /* AD */
    .ad-horizontal { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 12px; min-height: 90px; overflow: hidden }

    /* SEO FOOTER */
    .seo-footer { border-top: 1px solid var(--border); padding-top: 2rem; display: flex; flex-direction: column; gap: 1.5rem }
    .seo-section { display: flex; flex-direction: column; gap:.8rem }
    .seo-h2 { font-size: 1rem; font-weight: 700; color: #fff }
    .seo-section p { font-size:.85rem; color: var(--sub); line-height: 1.75 }
    .seo-link { color: var(--b); text-decoration: underline; text-underline-offset: 3px }
    .seo-bottom { border-top: 1px solid var(--border); padding-top: 1rem }
    .seo-links-row { font-size:.8rem; color: var(--sub) }
    .seo-links-row a { color: var(--sub); text-decoration: none }
    .seo-links-row a:hover { color: var(--text) }
    .link { color: var(--b); text-decoration: underline; text-underline-offset: 3px }
    .link:hover { color: #fff }
    .seo-table-wrap { overflow-x:auto; margin:1rem 0; border-radius:8px; border:1px solid var(--border) }
    .seo-table { width:100%; border-collapse:collapse; font-size:.81rem }
    .seo-table th { background:rgba(140,198,63,.07); color:var(--g); font-weight:700; padding:9px 12px; text-align:left; border-bottom:1px solid var(--border) }
    .seo-table td { padding:8px 12px; border-bottom:1px solid rgba(48,54,61,.5); color:var(--text); vertical-align:top }
    .seo-table tr:last-child td { border-bottom:none }

/* ── Extras das páginas de guia ── */
.crumbs { font-size: .75rem; color: var(--sub); margin-bottom: 10px }
.crumbs a { color: var(--sub); text-decoration: none }
.crumbs a:hover { color: var(--text) }
.updated { font-size: .75rem; color: var(--sub); margin-bottom: 14px; font-family: var(--mono) }
.article { display: flex; flex-direction: column; gap: 1rem }
.article p { margin: 0; font-size: .9rem; color: var(--sub); line-height: 1.8 }
.article p strong, .article li strong { color: var(--text) }
.article h3 { font-size: .98rem; font-weight: 700; color: #fff; margin-top: .5rem }
.article ul, .article ol { padding-left: 1.25rem; display: flex; flex-direction: column; gap: .5rem }
.article li { font-size: .88rem; color: var(--sub); line-height: 1.7 }
.article code { font-family: var(--mono); font-size: .8rem; background: rgba(255,255,255,.05); padding: 1px 5px; border-radius: 4px; color: var(--text) }
.article .seo-table-wrap { margin: .25rem 0 }
.side-pro { display: flex; flex-direction: column; gap: 4px; padding: 14px; border-radius: 10px; text-decoration: none; background: rgba(140,198,63,.08); border: 1px solid rgba(140,198,63,.3); margin-top: auto }
.side-pro strong { color: var(--g); font-size: .9rem }
.side-pro span { color: var(--sub); font-size: .78rem; line-height: 1.5 }
@media(max-width:900px) { .card-title { font-size: 1.5rem } .content-header, .content-body { padding-left: 1.1rem; padding-right: 1.1rem } .hero-card { padding: 1.4rem 1.1rem } }