styles.css

:root {
    --body-background: #f3f3f3;
    --group-color: #ffffff;
    --button-background: #0095f6;
    --link-color: #0095f6;
    --button-color: #ffffff;
    --not-account-background:#a0a0a0;
    --label-switch:#000000;
    --ball-switch:#c7c3c3;
    --border: #d3d3d3;
}

.darker-mode:root {
    --body-background: #000000;
    --group-color: #1e5f74;
    --button-background: #060831;
    --link-color: #ffffff;
    --button-color: #77b7e2;
    --not-account-background:#090316;
    --label-switch:#133b5c;
    --ball-switch:#1e5f74;
    --border:#103c5f;
}   

* {
    box-sizing: border-box;
    padding: 0;
    margin: 0;

    text-decoration: none;
    font-family: sans-serif;
    font-size: 14px;
}

body {
    width: 100%;
    min-height: 100vh;
    
    background-color: var(--body-background);
    
    margin: 0;
    padding: 0;

    
    display: flex;
    justify-content: center;
}

.instagram-wrapper {
    display: flex;
    align-items: center;
    justify-content: start;

    width: 60%;
    height: 100vh;

    position: relative;
}

.instagram-phone {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50%;
}

.instagram-phone img {
    height: 42rem;
}

.instagram-continue {
    display: flex;
    align-items: center;
    justify-content: space-around;
    flex-direction: column;
    
    width: 50%;
    min-height: 34rem;
}

.group {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    
    background-color: var(--group-color);
    
    width: 100%;
    padding: 1.3rem 0;
    border: 1px solid var(--border);
}

.group:nth-child(1) {
    min-height: 19rem;
    margin-bottom: 1rem;
}

.instagram-logo {
    height: 3rem;
}

.profile-photo {
    display: flex;
    justify-content: center;
    align-items: center;
    
    border-radius: 50%;
    overflow: hidden;
    margin: 1.2rem;
}

.profile-photo img {
    height: 8em;
}

.instagram-login {
    background-color: var(--button-background);
    color: var(--button-color);

    padding: 8px;
    border-radius: 4px;
}

.instagram-logout {
    color: var(--button-background);
    margin-top: 1rem;
}

.not-account {
    color: var(--not-account-background);
}


.link-blue {
    color: var(--link-color);
}

.group a {
    cursor: pointer;
}

.get-the-app {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    
    width: 100%;
    padding: 1.3rem 0;
}

.get-the-app p {
    color: var(--ball-switch);
}

.download {
    display: flex;
    width: 100%;
    align-items: center;
    justify-content: space-evenly;

    padding: 1rem;
}

.app-download {
    height: 3rem;
    width: 10rem;
    background-size: cover;
}

.app-download:nth-child(1) {
    background-image: url('./img/botaomac.png');
}

.app-download:nth-child(2) {
    background-image: url('./img/botaogoogle.png');
}

/* media queries */

@media (max-width: 1024px) {
    .instagram-wrapper {
        width: 90%;
    }
}

@media (max-width: 650px) {
    .body {
        background-color: var(--button-color);
    }

    .instagram-wrapper {
        width: 90%;
    }

    .instagram-phone {
        display: none;
    }

    .instagram-continue {
        width: 100%;
    }

    .group {
        border: 1px solid transparent;
    }
}

/* Button style */

.dark-mode input {
    opacity: 0;
    position: absolute;
}

.dark-mode input:checked + label {
    background-color: var(--label-switch);
}

.dark-mode input:checked + label .toggle {
    transform: translateX(29px);
}

.dark-mode label {
    width: 60px;
    height: 30px;
    border-radius: 20px;
    background-color: black;
    
    display: flex;
    justify-content: space-evenly;
    align-items: center;
    
    position: relative;
}

.dark-mode label .toggle {
    transition: transform 0.4s;
}

.dark-mode label img {
    width: 25px;
    padding: 0 0.1rem;
}

.dark-mode label .toggle {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    
    position: absolute;
    left: 0.2rem;

    justify-content: center;
    align-items: center;

    background-color: var(--ball-switch);
}