require_once __DIR__ . '/../_shared/premium.php';
$is_pro   = sc_is_pro();
$title    = 'Generador de Facturas Online Gratis 2026 | SecureCore';
$desc     = 'Genera facturas profesionales en segundos. Número de factura, datos fiscales, IVA e IRPF automático. Versión PRO con rectificativas, notas y exportación completa.';
$canonical= 'https://securecore.es/herramientas/generador-facturas/';
$schema   = json_encode([
    '@context'=>'https://schema.org','@type'=>'WebApplication',
    'name'=>'Generador de facturas online gratis',
    'url'=>$canonical,'description'=>$desc,
    'applicationCategory'=>'FinanceApplication','operatingSystem'=>'Web',
    'offers'=>[
        ['@type'=>'Offer','price'=>'0','priceCurrency'=>'EUR','name'=>'Gratis'],
        ['@type'=>'Offer','price'=>'5.99','priceCurrency'=>'EUR','name'=>'PRO'],
    ],
    'publisher'=>['@type'=>'Organization','name'=>'SecureCore'],
], JSON_UNESCAPED_UNICODE);
include __DIR__ . '/../_tool_header.php';
?>
<div class="t-crumb"><div class="t-wrap" style="padding-top:0;padding-bottom:0;">
  <a href="/">SecureCore</a><span class="sep">›</span><a href="/herramientas/">Herramientas</a><span class="sep">›</span><span>Generador de facturas</span>
</div></div>

<div class="t-wrap">

  <div style="margin-bottom:2rem;">
    <div style="display:flex;gap:.7rem;align-items:center;flex-wrap:wrap;margin-bottom:.6rem;">
      <span style="font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.1em;color:#22d3ee;">🧾 Facturación</span>
      <br />
<b>Warning</b>:  Undefined variable $is_pro in <b>/var/www/securecore/herramientas/generador-facturas/index.php</b> on line <b>37</b><br />
    </div>
    <h1 style="font-size:clamp(1.5rem,3.5vw,2.3rem);font-weight:800;letter-spacing:-.02em;margin-bottom:.7rem;">Generador de facturas online gratis</h1>
    <p style="color:var(--text-secondary);font-size:.93rem;max-width:620px;line-height:1.75;">Crea una factura profesional en menos de 2 minutos. IVA e IRPF calculados automáticamente. Sin registro ni instalaciones. Los datos no se guardan en ningún servidor.</p>
  </div>

  <div class="t-ad"><span class="t-ad-lbl">Publicidad</span>
    <ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-8646605813103981" data-ad-slot="auto" data-ad-format="auto" data-full-width-responsive="true"></ins>
    <script>(adsbygoogle=window.adsbygoogle||[]).push({});</script>
  </div>

  <!-- ── FORMULARIO FACTURA ──────────────────────────────────────── -->
  <div class="tool-card" style="margin:1.5rem 0;">

    <!-- Cabecera de la factura -->
    <h3 style="font-size:.85rem;font-weight:700;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.06em;margin-bottom:1.2rem;">Datos de la factura</h3>
    <div class="input-grid" style="margin-bottom:1.2rem;">
      <div><label>Número de factura</label><input type="text" id="fNum" placeholder="2026-001"></div>
      <div><label>Fecha</label><input type="date" id="fFecha" value="2026-03-30"></div>
      <div><label>Fecha de vencimiento <span style="font-size:.7rem;color:#555;">opcional</span></label><input type="date" id="fVto"></div>
    </div>

    <!-- Emisor -->
    <h3 style="font-size:.85rem;font-weight:700;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.06em;margin:.8rem 0 .8rem;">Datos del emisor (tú)</h3>
    <div class="input-grid" style="margin-bottom:1.2rem;">
      <div><label>Nombre / Razón social</label><input type="text" id="eNombre" placeholder="Tu Empresa S.L. / Tu Nombre"></div>
      <div><label>NIF / CIF</label><input type="text" id="eNif" placeholder="B12345678 / 12345678A"></div>
      <div><label>Dirección</label><input type="text" id="eDir" placeholder="Calle Principal 1, 41001 Sevilla"></div>
      <div><label>Email <span style="font-size:.7rem;color:#555;">opcional</span></label><input type="email" id="eEmail" placeholder="facturacion@empresa.com"></div>
    </div>

    <!-- Receptor -->
    <h3 style="font-size:.85rem;font-weight:700;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.06em;margin:.8rem 0 .8rem;">Datos del cliente</h3>
    <div class="input-grid" style="margin-bottom:1.2rem;">
      <div><label>Nombre / Razón social</label><input type="text" id="cNombre" placeholder="Cliente S.L. / Nombre Cliente"></div>
      <div><label>NIF / CIF</label><input type="text" id="cNif" placeholder="A87654321 / 87654321B"></div>
      <div><label>Dirección</label><input type="text" id="cDir" placeholder="Calle Cliente 5, 28001 Madrid"></div>
    </div>

    <!-- Líneas de la factura -->
    <h3 style="font-size:.85rem;font-weight:700;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.06em;margin:.8rem 0 .8rem;">Conceptos</h3>
    <div style="margin-bottom:.8rem;">
      <div style="display:flex;justify-content:flex-end;margin-bottom:.5rem;">
        <button onclick="addLinea()" style="padding:.3rem .9rem;border-radius:100px;font-size:.72rem;font-weight:700;border:1px solid rgba(0,255,136,.25);background:rgba(0,255,136,.06);color:var(--neon-green);cursor:pointer;">+ Añadir línea</button>
      </div>
      <div style="overflow-x:auto;">
        <table style="width:100%;border-collapse:collapse;font-size:.84rem;" id="fLineasTable">
          <thead><tr style="border-bottom:1px solid rgba(255,255,255,.08);">
            <th style="text-align:left;padding:7px 8px;color:var(--text-secondary);font-weight:600;min-width:200px;">Descripción</th>
            <th style="text-align:center;padding:7px 8px;color:var(--text-secondary);font-weight:600;width:70px;">Uds.</th>
            <th style="text-align:center;padding:7px 8px;color:var(--text-secondary);font-weight:600;width:100px;">Precio/ud (€)</th>
            <th style="text-align:center;padding:7px 8px;color:var(--text-secondary);font-weight:600;width:70px;">IVA %</th>
            <th style="text-align:center;padding:7px 8px;color:var(--text-secondary);font-weight:600;width:90px;">Subtotal</th>
            <th style="width:32px;"></th>
          </tr></thead>
          <tbody id="fLineas"></tbody>
        </table>
      </div>
    </div>

    <!-- IRPF -->
    <div style="display:flex;gap:1rem;align-items:center;flex-wrap:wrap;margin-bottom:1rem;">
      <label style="display:flex;align-items:center;gap:.5rem;font-size:.85rem;color:var(--text-secondary);cursor:pointer;">
        <input type="checkbox" id="fIrpf" style="width:16px;height:16px;" onchange="recalc()">
        Aplicar retención IRPF
      </label>
      <div style="display:flex;align-items:center;gap:.4rem;">
        <select id="fIrpfPct" onchange="recalc()" style="background:var(--card-bg);border:1px solid rgba(255,255,255,.1);color:var(--text-primary);padding:.3rem .6rem;border-radius:6px;font-size:.82rem;">
          <option value="7">7% (nuevo autónomo)</option>
          <option value="15" selected>15% (general)</option>
          <option value="19">19%</option>
        </select>
      </div>
    </div>

    <button class="tool-btn" onclick="generarVista()">🧾 Generar factura</button>

    <!-- Preview factura -->
    <div id="fPreview" style="display:none;margin-top:1.5rem;background:rgba(255,255,255,.02);border:1px solid rgba(255,255,255,.08);border-radius:12px;padding:1.5rem;">
      <div style="display:flex;justify-content:space-between;align-items:flex-start;flex-wrap:wrap;gap:1rem;margin-bottom:1.5rem;padding-bottom:1.2rem;border-bottom:1px solid rgba(255,255,255,.06);">
        <div>
          <div style="font-size:.65rem;text-transform:uppercase;letter-spacing:.1em;color:#555;margin-bottom:.3rem;">FACTURA</div>
          <div style="font-size:1.3rem;font-weight:800;color:var(--text-primary);" id="pvNum">—</div>
          <div style="font-size:.78rem;color:#666;margin-top:.2rem;" id="pvFecha">—</div>
        </div>
        <div style="text-align:right;">
          <div style="font-weight:700;color:var(--text-primary);" id="pvEmisor">—</div>
          <div style="font-size:.8rem;color:#666;" id="pvEmisorNif">—</div>
          <div style="font-size:.78rem;color:#666;margin-top:.3rem;" id="pvEmisorDir">—</div>
        </div>
      </div>
      <div style="margin-bottom:1.2rem;">
        <div style="font-size:.7rem;text-transform:uppercase;letter-spacing:.08em;color:#555;margin-bottom:.4rem;">FACTURADO A</div>
        <div style="font-weight:600;color:var(--text-primary);" id="pvCliente">—</div>
        <div style="font-size:.8rem;color:#666;" id="pvClienteNif">—</div>
        <div style="font-size:.78rem;color:#666;" id="pvClienteDir">—</div>
      </div>
      <table style="width:100%;border-collapse:collapse;font-size:.82rem;margin-bottom:1rem;">
        <thead><tr style="border-bottom:1px solid rgba(255,255,255,.08);">
          <th style="text-align:left;padding:6px 0;color:#666;font-weight:600;">Descripción</th>
          <th style="text-align:right;padding:6px 0;color:#666;font-weight:600;width:50px;">Uds.</th>
          <th style="text-align:right;padding:6px 0;color:#666;font-weight:600;width:80px;">P/ud</th>
          <th style="text-align:right;padding:6px 0;color:#666;font-weight:600;width:50px;">IVA</th>
          <th style="text-align:right;padding:6px 0;color:#666;font-weight:600;width:80px;">Subtotal</th>
        </tr></thead>
        <tbody id="pvLineas"></tbody>
      </table>
      <div style="display:flex;flex-direction:column;gap:.3rem;align-items:flex-end;border-top:1px solid rgba(255,255,255,.06);padding-top:.8rem;">
        <div style="font-size:.82rem;color:#888;">Base imponible: <span id="pvBase" style="color:var(--text-primary);font-weight:600;">—</span></div>
        <div id="pvIvaDesglose" style="font-size:.82rem;color:#888;"></div>
        <div id="pvIrpfRow" style="display:none;font-size:.82rem;color:#f87171;">Retención IRPF: <span id="pvIrpf" style="font-weight:600;">—</span></div>
        <div style="font-size:1.1rem;font-weight:800;color:var(--neon-green);">TOTAL: <span id="pvTotal">—</span></div>
      </div>
      <div style="margin-top:1rem;font-size:.72rem;color:#444;text-align:center;">
        Vista previa · <br />
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Stack trace:
#0 {main}
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