html, body {
    min-height: 100%;
}

body {
    margin: 0;

    /* Fundo */
    background:
        linear-gradient(rgba(0,0,0,0.45), rgba(0,0,0,0.45)),
        url('/assets/img/bgdefaultweb.webp');

    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;

    /* IMPORTANTE: melhor para mobile */
    background-attachment: scroll;
}

/* Links */
.mastigra {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
}

.mastigra:hover {
    color: #cb2128;
    text-decoration: none;
}

/* Botões */
.btn {
    transition: all 0.25s ease;
}

.btn:hover {
    color: #fff !important;
    background-color: #cb2128;
    border-color: #cb2128;
}

/* Ajuste fino para celular */
@media (max-width: 768px) {
    body {
        background-position: top center;
    }
}