body{
    font-family: "Montserrat", sans-serif;
    margin: 0;
    background-color: #000;
    color: #fff;
    overflow: hidden;
}
/*layout*/
.main{
    height: 100vh;
    display: flex;
    padding: 0.5rem;
}

.sidebar{
    background-color: #000;
    width: 400px;
    border-radius: 1rem; /*1rem = 16px*/
    margin-right: 0.5rem;
}

.main-content{
    background-color: #121212;
    flex: 1;
    border-radius: 1rem; /*1rem = 16px*/
    overflow: auto;
    padding: 0 1.5rem 0 1.5rem;
}
.music-player{
    background-color: black;
    position: fixed; /*[position always relative to the viewport.] */
    bottom: 0;
    width: 100%;
    height: 72px;
}

/* sidebar */
/*nav*/
.nav{
    display: flex;
    flex-direction: column;
    height: 100px;
    padding: 0.5rem 0.75rem;
    justify-content: center;
    background-color: #121212;
    border-radius: 1rem;
}

a{
    text-decoration: none;
    color: white;
    cursor: pointer;
}

.nav-option{
    line-height: 2.5rem;
    opacity: 0.7;
    padding: 0.5rem 0.75rem;
}

.nav-option:hover{
    opacity: 1;
}
.nav-option i{
    font-size: 1.25rem;
}

.nav-option a{
    font-size: 1rem;
    margin-left: 1rem;
}

/*library*/
/*options*/
/*lib-option*/
.library{
    border-radius: 1rem;
    background-color: #121212;
    height: 100%;
    margin-top: 0.5rem;
    
}
.options{
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0.75rem;
}

.lib-option img{
    height: 1.25rem;
    width: 1.25rem;
    cursor: pointer;
}
.icons{
font-size: 1.25rem;
cursor: pointer;
}
.icons i{
    opacity: 0.7;
    margin-right: 1rem ;
}
.icons i:hover{
    opacity: 1;
}

/*lib-boxes*/

.lib-boxes{
    padding: 0 0.5rem 0.5rem 0.5rem;
}
.box{
    height: 8rem;
    margin: 0.75rem 0 1.75rem 0;
    padding: 0.75rem 1.25rem;
    background-color: #212121;
    border-radius: 0.75rem;
}

.box-p1{
    font-size: 1rem;
    font-weight: 500;
}

.box-p2{
    font-size: 0.8rem;
    opacity: 0.9;
}

.badge{
    border: none;
    border-radius: 100px;
    background-color: #fff;
    padding: 0.25rem 1rem;
    font-weight: 700;
    margin-top: 0.5rem;
    height: 2rem;
    width: fit-content;
    cursor: pointer;
}

.badge:hover{
    transform: scale(1.04);
}

/*main-content*/
/*stickey-nav*/
.stickey-nav{
    position: sticky;
    top: 0; /*for sticky at TOP*/
    background-color: #121212;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0 1rem 0;
    z-index: 1;
}

.stickey-nav-icons{
    margin-left: 0.75rem;
}

.stickey-nav-options{
    display: flex;
    justify-content: center;
    align-items: center;
}

.nav-items{
    margin-right: 1rem;
}

.dark-badge{
    background-color: #000;
    color: #fff;
}

@media (max-width: 1000px){
    .hide{
        display: none;
    }
}

/*cards*/

.card{
    background-color: #232323;
    width: 150px;
    border-radius: 0.5rem;
    padding: 1rem;
    margin-left: 1.5rem;
    margin-top: 1rem;
}

.cards-container{
    display: flex;
    flex-wrap: wrap;
}

.card-img{
    width: 100%; /*width: 100% means 150px*/
    border-radius: 0.5rem;
}

.card-title{
    font-weight: 600;
}

.card-info{
    font-size: 0.85rem;
    opacity: 0.8;
}
.card:hover{
    transform: scale(1.1);
    cursor: pointer;
}

/*footer*/
.footer{
    height: 300px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.line{
    width: 90%;
    height: 50%;
    border-top: 1px solid white;
    opacity: 0.4;
}

/*music-player*/

.music-player{
    display: flex;
    justify-content: space-between;
    align-items: center;

}

.album{
    width: 25%;
}

.player{
    width: 50%;
}

.controls{
    width: 25%;
}

.player-control-icon{
    height: 1rem;
    margin-right: 1.75rem;
    opacity: 0.7;
}

.player-control-icon:hover{
    opacity: 1;
}

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

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

.progress-bar{
    width: 70%;
    appearance: none;
    background-color: transparent;
    cursor: pointer;
}

.progress-bar::-webkit-slider-runnable-track{
    background-color: #ddd;
    border-radius: 100px;
    height: 0.2rem;
}

.progress-bar::-webkit-slider-thumb{
    appearance: none;
    height: 1rem;
    width: 1rem;
    background-color: #1bd760;
    border-radius: 50%;
    margin-top: -6px;
}

/*album*/

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

.albm-img img{
    height: 50%;
    border-radius: 10%;
    margin-right: 1rem;
}

.song-head{
    opacity: 1;
    color: white;
    font-weight: 600;
}

.song-title {
    color: white;
    opacity: 0.8;
    font-size: 0.8rem;
}

.albm-icon{
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
}

.albm-icon-one{
    margin-right: 0.75rem;
    margin-left: 1rem;
}

.albm-icon-two{
    height: 2.19rem;
}

/*controls*/
.controls{
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
}

.control-icon-one{
    height: 2rem;
    width: 2rem;
    margin-right: 0.20rem;
}

.control-icon-two{
    height: 2rem;
    width: 1.75rem;
    margin-right: 0.20rem;
}

.control-icon-three{
    height: 0.50rem;
    width: 1rem;
}

.control-icon-four{
    height: 1rem;
    width: 1rem;
    margin-right: 0.75rem;
    padding-bottom: 4px;
}
.control-icon-five{
    height: 2rem;
    width: 1.75rem;
    margin-right: 0.75rem;
}

.control-volume .volume{
    display: flex;
    appearance: none;
    width: 100px;
    height: 3px;
    cursor: pointer;
}

.control-volume.volume::-webkit-slider-runnable-track{
    background-color: #ddd;
}

.control-volume .volume::-webkit-slider-thumb{
    appearance: none;
    height: 1rem;
    width: 1rem;
    border-radius: 0.5rem;
    background-color: #1bd760;
}

@media (max-width: 900px) {
    .sidebar {
        width: 80px; 
        display: flex;
        flex-direction: column;
        align-items: center; 
        
    }

    .nav-option a,
    .library a,
    .lib-boxes .box p,
    .badge {
        display: none;
    }

    .nav-option i,
    .icons i {
        font-size: 20px; 
    }

    .control-icons, .control-icon-one, .control-icon-two, .control-icon-three, .control-icon-four{
        display:none;
    }

    .album, .albm-img, .albm-des, .albm-icon{
        display: none;
    }
    
    .control-volume, .volume{
        margin-right: 45px;
        margin-top: 15px;
    }

    .player{
        padding-left: 35px;
    }
    #box1{
        background-image: url(assets/Arcane5.jpg);
        background-size: cover;
        height: 100px;
        width: 50px;
    }
    #box2{
        background-image: url(assets/Arcane4.jpg);
        background-size: cover;
        height: 100px;
        width: 50px;
    }
}

@media (width: 1024px), (width: 912px){
    .control-icons, .control-icon-one, .control-icon-two, .control-icon-three, .control-icon-four{
        display:none;
    }

    .album, .albm-img, .albm-des, .albm-icon{
        display: none;
    }
    
    .control-volume, .volume{
        margin-right: 45px;
        margin-top: 15px;
    }

    .player{
        padding-left: 35px;
    }

}