style.css

@import url('https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,200;1,400;1,500;1,600;1,700;1,800&display=swap');

:root {
    --poppins-font: 'Poppins', sans-serif;
    --dark-color: #0a0a0a;
    --red-color: #f64445;
    --light-color: #fff;
    --grey-color: #505050;
    --yellow-color: #f2c10e;
}

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

html {
    font-size: 10px;
}

body {
    font-size: 1.7rem;
    min-height: 100vh;
    background: var(--red-color);
    background: -o-linear-gradient(281deg, #E00101 0%, #070100 100%);
    background: linear-gradient(169deg, #E00101 0%, #070100 100%);
    /* background-image: "https://img.freepik.com/premium-vector/comic-blue-background-with-city-silhouette-cloud-illustration_530597-1550.jpg?w=2000"; */
    line-height: 1.6;
    font-family: var(--poppins-font);
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-pack: stretch;
    -ms-flex-pack: stretch;
    justify-content: stretch;
}

button,
input {
    font-family: inherit;
    font-size: 1.8rem;
    outline: 0;
    border: none;
    background-color: transparent;
}

li {
    list-style-type: none;
}

img {
    width: 100%;
    display: block;
}

.main-wrapper {
    max-width: 1280px;
    width: 100%;
    margin: 0 auto;
}

.app 
{
    background-color: var(--dark-color);
    margin: 2rem;
    padding: 5rem;
    border-radius: 6px;
    color: #fff;
    -webkit-box-shadow: 0px 5px 11px 0px rgba(0, 0, 0, 0.5);
    box-shadow: 0px 5px 11px 0px rgba(0, 0, 0, 0.5);
}

.app-header {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-pack: justify;
    -ms-flex-pack: justify;
    justify-content: space-between;
}

.app-header-title span {
    color: var(--red-color);
}

.app-header-search {
    border: 2px solid var(--grey-color);
    border-radius: 3rem;
    padding: 1rem 2rem;
    position: relative;
}

.app-header-search #form-control 
{
    min-width: 420px;
    color: #fff;
}
.fa-magnifying-glass:before, .fa-search:before {
    content: "\f002";
    color: grey;
}
.app-header-search .search-btn {
    color: var(--grey-color);
    font-size: 2.3rem;
    cursor: pointer;
}
#random{
    color : #505050;
}
#random:hover{
    cursor: pointer;
}


/* app body */
.app-body {
    margin-top: 4rem;
    height: 600px;
    overflow-y: scroll;
}

.app-body::-webkit-scrollbar {
    width: 7px;
}

.app-body::-webkit-scrollbar-track {
    -webkit-box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.3);
    box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.3);
}

.app-body::-webkit-scrollbar-thumb {
    background-color: var(--red-color);
    border-radius: 5px;
}

/* app body tabs heads */

/* app body content */
.app-body-content {
    display: grid;
    grid-template-columns: 2fr 3fr;
    -webkit-column-gap: 4rem;
    -moz-column-gap: 4rem;
    column-gap: 4rem;
    margin-right: 2rem;
}

.app-body-content-thumbnail {
    width: 100%;
    border-radius: 6px;
    overflow: hidden;
}

.app-body-content-list .name {
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 3.4rem;
    font-weight: 500;
    margin-top: -1.2rem;
}

.app-body-tabs-body {
    margin-top: 3.6rem;
}


.powerstats li {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: justify;
    -ms-flex-pack: justify;
    justify-content: space-between;
    margin: 1.2rem auto;
    padding: 1.2rem;
    -webkit-box-shadow: 0 5px 7px 0 rgba(0, 0, 0, 0.5);
    box-shadow: 0 5px 7px 0 rgba(0, 0, 0, 0.5);
}

.powerstats li div i {
    color: var(--red-color);
}

.powerstats li div span {
    text-transform: uppercase;
    letter-spacing: 2px;
    border-radius: 7px;
    padding: 0 1.2rem;
    margin: 0 1.6rem;
    opacity: 0.6;
    font-size: 1.7rem;
}

.powerstats li>span {
    color: var(--yellow-color);
    font-weight: 700;
}
@media screen and (max-width: 1200px) {
    .app-body-content {
        grid-template-columns: 1fr 3fr;
        -webkit-box-align: center;
        -ms-flex-align: center;
        align-items: center;
    }

    .tab-head-single {
        margin: 1.5rem 0;
    }
}

@media screen and (max-width: 1000px) {
    .app-body-content-list .name {
        text-align: center;
        margin-top: 1.8rem;
    }

    .app-body-content {
        grid-template-columns: 1fr;
        row-gap: 4rem;
        max-width: 680px;
        margin-right: auto;
        margin-left: auto;
    }

    .app-body-content-thumbnail {
        max-width: 400px;
        margin: 0 auto;
    }
}

@media screen and (max-width: 992px) {
    .app-header {
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
        flex-direction: column;
    }

    .app-header-search {
        margin-top: 2.8rem;
        margin-bottom: 2rem;
        display: flex;
        justify-content: center;
    }
}

@media screen and (max-width: 768px) {
    .app-body-tabs-head {
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
        flex-direction: column;
    }

    .app-header-search {
        display: -webkit-box;
        display: -ms-flexbox;
        display: flex;
        justify-content: center;
    }

    .app-header-search #form-control {
        min-width: auto;
        color: #fff;
    }

    .app-header-search #search-btn {
        padding-left: 0.5rem;
    }

    .app-body-tabs-body {
        margin-right: 3rem;
    }
}