style.css

body {
    font-family: 'Roboto', sans-serif;
    font-weight: bold;
    margin: 0 5%;
    background-color: black;
    color: white;
}

svg {
    cursor: pointer;
}

.ligth {
    background-color: white;
    color: black;
}

.ligth svg path {
    fill: #000000;
}

#btn-tema {
    margin-left: 130px;
}

.foto {
    border-radius: 50%;
    margin: 20px;
}

.introducao {
    display: flex;
    align-items: center;
    justify-content: center;
}

.introducao-descricao {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.introducao-descricao p {
    margin: 10px;
    font-size: 18px;
}

.networks {
    display: flex;
    justify-content: flex-start;
    margin: 2% 5%;
}

.networks h1 {
    display: flex;
    align-items: center;
    margin: 5px;
    font-size: 25px;

}

.networks-icons {
    display: flex;
    flex-direction: column;
    margin: 5px;
}

.networks-icons img {
    width: 120px;
    border-radius: 5px;
}

.networks-icons img:hover {
    transform: scale(1.1);
    transition: all 1s;
    margin: 1px;
}


.languages {
    display: flex;
    justify-content: flex-end;
    margin: 2% 5%;
}

.languages h1 {
    display: flex;
    align-items: center;
    margin: 5px;
    font-size: 25px;
}

.languages-icons {
    display: flex;
}

.languages-icons img {
    width: 40px;
    margin: 5px;
}

.languages-icons img:hover {
    width: 40px;
    margin: 5px;
    transform: scale(1.1);
    transition: all 0.5s;
}


.tools {
    display: flex;
    justify-content: flex-start;
    margin: 5% 10%;
}

.tools h1 {
    display: flex;
    align-items: center;
    margin: 5px;
    font-size: 25px;
}

.tools-icons {
    display: flex;
}

.tools-icons img {
    width: 40px;
    margin: 5px;
}

.tools-icons img:hover {
    width: 40px;
    margin: 5px;
    transform: scale(1.1);
    transition: all 0.5s;
}

.stats {
    display: flex;
    flex-direction: column;
    text-align: center;
    margin: 1% 10%;
}

.stats h1 {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 5px;
    font-size: 25px;
}

.stats-img img {
    margin: 5px;

}

@media screen and (max-width: 800px) {
    main {
        display: flex;
        flex-direction: column;
        align-items: center;
        margin: 5px;

    }

    .languages h1,
    .networks h1,
    .tools h1,
    .stats h1 {
        font-size: 20px;
        margin-top: 20px;
    }

    .introducao,
    .languages,
    .networks,
    .tools,
    .stats {
        display: flex;
        flex-direction: column;
        align-items: center;
        margin: 0;
    }

    .languages-icons,
    .networks-icons,
    .tools-icons {
        display: flex;
        justify-content: center;
    }

    .languages-icons,
    .networks-icons,
    .tools-icons img {
        margin: 0px;
    }

    .stats img {
        width: 100%;
    }

}