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

/* Header */

header {
    background: hsl(232, 19%, 15%);
    display: flex;
    justify-content: center;
    transition: 0.4s;
}

.header_container {
    display: flex;
    width: 75%;
    height: 250px;
    font-family: 'Inter', sans-serif;
    justify-content: space-between;
    padding: 50px 0px;
}

.header_container .left h1{
    color: hsl(0, 0%, 100%);
    font-weight: 700;
}

.header_container .left p{
    color: hsl(228, 34%, 66%);
    font-weight: 700;
}

.header_container .right{
    display: flex;
}

.header_container .right h2{
    color: hsl(228, 34%, 66%);
    font-size: 18px;
    font-weight: 700;
    padding-right: 20px;
}

/* circled checked box on and off */
.checkbox {
    position: relative;
    display: block;
    width: 55px;
    height: 25px;
}

.checkbox input {
    display: none;
}

.checkbox--sliding {
    --checkbox-background: linear-gradient(hsl(210, 78%, 56%), hsl(146, 68%, 55%));
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    bottom: 0;
    background: var(--checkbox-background);
    border-radius: 20px;
    transition: 0.4s;
}

/* Appearance of checkbox before clicking */
.checkbox--sliding:after {
    --checkbox-background: hsl(232, 19%, 15%);
    position: absolute;
    color: #c2c2c2;
    height: 20px;
    width: 20px;
    content: "";
    background: var(--checkbox-background);
    border-radius: 50%;
    left: 3px;
    top: 15px;
    transform: translateY(-60%);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0.5px 0px 2px #c8cbcc;
    transition: 0.4s;
}

.checkbox--input:checked + .checkbox--sliding {
    --checkbox-background: hsl(230, 22%, 74%);
}
/* Appearance of checkbox */
.checkbox--input:checked + .checkbox--sliding:after {
    --checkbox-background: white;
    background: var(--checkbox-background);
    left: calc(100% - 24px);
    content: "";
    box-shadow: -0.5px 0px 2px rgb(110, 110, 110);
}

/* Section Social Medias */
.social_medias {
    background: hsl(230, 17%, 14%);
    font-family: 'Inter', sans-serif;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding-bottom: 80px;
}

.social_medias_container {
    display: flex;
    justify-content: space-around;
    width: 75%;
    text-align: center;
    flex-wrap: wrap;
    margin-top: -80px;
    transition: 0.4s;
}

.medias_box {
    display: flex;
    flex-direction: column;
    flex-basis: 22%;
    background: hsl(228, 28%, 20%);
    margin: auto;
    border-radius: 5px;
    transition: 0.4s;
}

/* Gradient top */
.medias_box .gradient {
    width: 100%;
    height: 4px;
    background: var(--background-card);
    border-radius: 5px 5px 0 0px;
}

.fb {
    --background-card:hsl(208, 92%, 53%);
}

.twitter {
    --background-card:hsl(203, 89%, 53%);
}

.insta {
    --background-card: linear-gradient(45deg, hsl(37, 97%, 70%), hsl(329, 70%, 58%));
}

.yout {
    --background-card:hsl(348, 97%, 39%);
}

.medias_box .top {
    display: flex;
    align-items: center;
    width: 100%;
    justify-content: center;
    padding: 40px 0px 12px 0px;
}

.medias_box .top img {
    padding-right: 10px;
}

.medias_box .top span {
    color: hsl(228, 34%, 66%);
    font-size: 12px;
    font-weight: 700;
}

.medias_box .middle h2 {
    color: white;
    font-size: 50px;
}

.medias_box .middle span {
    color: hsl(228, 34%, 66%);
    letter-spacing: 3px;
    text-transform: uppercase;
}

.medias_box .bottom {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px 0 20px 0;
}

.medias_box .bottom img {
    padding-right: 5px;
}

.medias_box .bottom span {
    color: hsl(163, 72%, 41%);
    font-weight: 700;
    font-size: 12px;
}

.medias_box:last-child .bottom span {
    color: hsl(356, 69%, 56%);
}

/* Hover effect */

.medias_box:hover {
    background: hsl(227, 28%, 30%);
    cursor: pointer;
}


/* Overviews Section */

.overviews_container {
    display: flex;
    flex-direction: column;
    width: 74%;
    padding: 50px 0 0 0;
}

.overviews_container h2 {
    color: white;
    font-size: 25px;
    letter-spacing: 1px;
    padding-bottom: 30px;
}

.overviews-box {
    display: flex;
    justify-content: space-around;
    width: 100%;
    text-align: center;
    flex-wrap: wrap;
}

.overviews {
    display: flex;
    flex-direction: column;
    flex-basis: 23%;
    background: hsl(228, 28%, 20%);
    margin: auto;
    margin-bottom: 20px;
    border-radius: 5px;
    transition: 0.4s;
}

.overviews .top {
    display: flex;
    padding: 20px;
    width: 100%;
    justify-content: space-between;
}

.overviews .top p {
    color: hsl(228, 34%, 66%);
    font-size: 14px;
    font-weight: 700;
}

.overviews .bottom {
    display: flex;
    padding: 20px;
    width: 100%;
    justify-content: space-between;
    align-items: center;
}

.overviews .bottom p {
    font-size: 30px;
    color: white;
    font-weight: 700;
}

.overviews .bottom span {
    color: hsl(163, 72%, 41%);
    font-weight: 700;
    font-size: 12px;
}


.overviews:nth-child(2) .bottom span{
    color: hsl(356, 69%, 56%);
}

.overviews:nth-child(7) .bottom span{
    color: hsl(356, 69%, 56%);
}

.overviews:nth-child(8) .bottom span{
    color: hsl(356, 69%, 56%);
}

/* Hover effect */
.overviews:hover {
    background: hsl(227, 28%, 30%);
    cursor: pointer;
}


/* Version mobile */

@media screen and (max-width: 376px) {

    /* Header */
    header {
        height: 320px;
    }
    .header_container {
        flex-direction: column;
    }

    .header_container .left h1{
        font-size: 20px;
    }

    .header_container .left p{
        font-size: 14px;
    }

    .header_container .underline {
        height: 1px;
        width: 100%;
        background: hsla(230, 22%, 74%, 0.548);
    }

    .header_container .right {
        justify-content: space-between;
    }

    /* Social medias box */
    .medias_box {
        flex-basis: 100%;
        margin-bottom: 20px;
    }

    /* Overviews box */
    .overviews {
        flex-basis: 100%;
    }
}

/* White mode */
.white_bg {
    background: hsl(0, 0%, 100%);
}

.white_bg_header {
    background: hsl(225, 100%, 98%);
}

.white_bg_card {
    background: hsl(227, 47%, 96%);
}

.white_text {
    color: hsl(228, 12%, 44%);
}

.white_text_title {
    color: hsl(230, 17%, 14%);
}