:root {
    --cor-de-fundo: #222222;
    --cor-de-fundo-link: #181818;
    --cor-do-texto-link: #ffffff;
    --filtro-interruptor: grayscale(1) opacity(0.25);
}

.tema_claro {
    --cor-de-fundo: #5091b6;
    --cor-de-fundo-link: #ffffff;
    --cor-do-texto-link: #5091b6;
    ;
    --filtro-interruptor: grayscale(0) opacity(1);
}

* {
    margin: 0;
    padding: 0;
    touch-action: manipulation;
}

body {
    font-family: "Barlow", sans-serif;
    transition: 0.3s;
    background: var(--cor-de-fundo);
    -webkit-font-smoothing: antialiased;
}

.secao_principal {
    max-width: 500px;
    margin: 0 auto;

}

/* Topo */

.topo {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.topo__interruptor {
    position: absolute;
    top: 30px;
    right: 30px;
    border-radius: 100%;
    border: none;
    background: #fff;
    height: 50px;
    width: 50px;
    filter: var(--filtro-interruptor);
    cursor: pointer;
}

.topo__foto-perfil {
    margin-top: 60px;
    width: 100px;
    border: 4px solid #fff;
    border-radius: 100%;
    box-shadow: 0 2px 10px #000000;
}

.topo__nome {
    margin-top: 20px;
    font-size: 20px;
    color: #fff;
}

.topo__profissao {
    margin-top: 8px;
    color: #fff;
}

/* links */

.links {
    margin: 30px 30px 0 30px;
}
    
.links__link {
    position: relative;
    margin-bottom: 15px;
    height: 52px;
    color: var(--cor-do-texto-link);
    text-decoration: none;
    display: flex;
    background: var(--cor-de-fundo-link);
    align-items: center;
    justify-content: center;
    font-weight: 700;
    border-radius: 5px;
    box-shadow: 0 3px 3px #000;
    transition: 0.3s;
}

.links__icone {
    position: absolute;
    left: 19PX;
    font-size: 22px;
}    

.links__link:hover {
    filter: brightness(0.75);
}

/* rodapé */

.rodape {
    margin-top: 15px;
    display: flex;
    flex-direction: column;
    align-items: center;
    color: #fff;
}

.rodape__convite {
    font-weight: 700;
    margin-top: 8px;
}

.rodape__link {
    margin-top: 20px;
    font-size: 30px;
    color: #fff;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
}