body {
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: #f0f0f0;
    margin: 0;
    padding: 20px;
    background-color: #e60d0d;
    background-image: url('alylp4i5gpex.webp');
    background-size: cover; 
}

.container {
    width: 100%;
    max-width: 700px;
    background-color: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    text-align: center;
}

h1 {
    color: #333;
    font-size: 2.5em;
    margin-bottom: 20px;
}

.paso {
    display: none; 
    animation: fadeIn 0.8s ease-in-out;
}

.paso.activo {
    display: block; 
}

.paso-titulo {
    color: #007bff;
    font-size: 1.8em;
    margin-bottom: 10px;
}

.paso p {
    font-size: 1.1em;
    line-height: 1.6;
    color: #555;
}

.botones-navegacion {
    margin-top: 30px;
}

.btn {
    background-color: #007bff;
    color: white;
    border: none;
    padding: 12px 25px;
    font-size: 1em;
    cursor: pointer;
    border-radius: 5px;
    margin: 0 10px;
    text-decoration: none;
    transition: background-color 0.3s ease;
}

.btn:hover {
    background-color: #0056b3;
}

#btn-anterior,
#mensaje-final {
    display: none;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}