body {
    margin: 0;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    font-family: Arial, sans-serif;
    background: url('fondo.webp') no-repeat center center/cover;
}

#contenedor {
    background: rgba(0, 0, 0, 0.7);
    padding: 20px;
    border-radius: 10px;
    color: white;
}

h1 {
    margin-bottom: 20px;
}

input, button {
    padding: 10px;
    margin: 5px;
    border: none;
    border-radius: 5px;
}

button {
    background: #ff4d4d;
    color: white;
    cursor: pointer;
}

button:hover {
    background: #cc0000;
}