body{
    text-align: center;
    background-color:   #0e0e0e;
    color: white;
    
}
button{
    background-color: #010ecc;
    color: white;
    padding: 10px 40px;
    font-size: 18px;
    font-weight: 60;
    border: 0;
    border-radius: 30px;
    cursor: pointer;
    transition: .2s;
}

button:hover,
form .btn-enviar input:hover {
    box-shadow: 0px 0px 8px #ffffff;
    transform: scale(1.05);
}

/*Portifólio*/

section.portfolio {
    padding: 80px 4%;
    box-shadow: 0 0 40px 10px #ffffff1d;
}

section.portfolio .flex {
    justify-content: space-around;
    margin-top: 60px;
}

.img-port {
    width: 600px;
    height: 460px;
    background-size: cover;
    background-position: 100% 0%;
    cursor: pointer;
    border-radius: 40px;
    position: relative;
}

.img-port:hover {
    background-position: 100% 100%;
}

.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 600;
    color: #ffffff;
    opacity: 0;
    transition: .5s;
}

.overlay:hover {
    opacity: 1;
}
@media screen and (max-width: 1020px) {
    section.portfolio {
        padding: 80px 8%;
    }

    .img-port {
        width: 100%;
        max-width: 360px;
        margin: 0 auto;
    }
    
    section.portfolio .flex {
       gap: 60px;
    }

}

/*    <section id="humanas">
        <button onclick="irParaHumanas1()">Área de Humanas</button>
    </section><br>
    <section id="linguagens">
        <button onclick="irParaLinguagens1()">Área de Linguagens</button>
    </section><br>
    <section id="matematica">
        <button onclick="irParaMatematica1()">Área de Matemática</button>
    </section><br>
    <section id="natureza">
        <button onclick="irParaNatureza1()">Área de Natureza</button>
    </section><br>
    <section id="tecnico">
        <button onclick="irParaTecnico1()">Área de Técnico</button>
    </section><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br>
    <section id="voltar">
        <button onclick="voltarParaInicio1()">Voltar para a página inicial</button>
    </section>
    */