* {
    margin: 0;
    padding: 0;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}

body {
    overflow: hidden;
    font-family: 'Karla', sans-serif;
    font-size: 14px;
    background: #FFF center center no-repeat fixed;
    background-size: cover;
    /* Optimizaciones de rendimiento */
    background-attachment: fixed;
    will-change: transform;
    /* Asegurar que el footer esté en la posición correcta */
    margin: 0;
    padding: 0;
    min-height: 100vh;
}

/* Clase para imagen de fondo optimizada */
body.background-loaded {
    background-image: url('../img/Fondo.jpg');
}

.formulario {
    background:rgb(42, 63, 84, 0.8);
}

.container {
    margin-top: 100px;
}

.container h3 {
    color: #FFF;
    font-weight: 700;
}

.container hr {
    border: none;
    height: 2px;
    background-color: #FFF;
    margin-top: 20px;
    margin-bottom: 40px;
    width: 90%;
    margin-left: auto;
    margin-right: auto;
}

.container .btn {
    background-color: #1abb9c;
    color: #FFF;
    border-radius: 50px;
    margin-top: 20px;
    margin-bottom: 10px;
    padding: 5px 30px;
    font-size: 14px;
    font-weight: 700;
}

.container a {
    text-decoration: none;
    color: #FFF;
}

.contenedor {
    width: 100%;
    max-width: 1000px;
    margin: auto;
    overflow: hidden;
}

footer {
    background: #000;
    position: fixed;
    left: 0;
    bottom: 0;
    width: 100%;
    text-align: center;
    padding: 15px 0;
    z-index: 1000;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}

footer .empresa {
    text-align: center;
    color: #FFF;
    font-size: 12px;
}

@media screen and (max-width: 770px) {
    .formulario {
        max-width: 60%;
        flex: 0 0 100%;
    }
}

@media screen and (max-width: 550px) {
    .formulario {
        max-width: 80%;
    }
}