#player {
    width: 100%;
    max-width: 80ch;
    box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.5);
    border-radius: 1rem;
    margin: 2rem auto;
}

.display {
    display: flex;
    background-color: #fff;
    box-shadow: inset 0 -30px 15px -20px #000;
    border-radius: 1rem 1rem 0 0;
    padding: .5rem 2rem 1.5rem 2rem;
    align-items: center;
}

#controls {
    padding: 1rem;
    background-color: #fff;
    border-radius: .5rem;
    margin-top: -1rem;
}

.cover {
    position: relative;
    width: 8rem;
    height: 8rem;
    border-radius: 50%;
    background: #eee;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    border: solid .5rem #fff;
    box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.5);
}

.cover-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: block;
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    background-color: lightgray;
    border: solid 3px #fff;
}

.spin {
    animation-name: spin;
    animation-play-state: running;
    animation-duration: 2s;
    animation-delay: .5s;
    animation-timing-function: linear;
    animation-iteration-count: infinite;
}

.pause {
    animation-play-state: paused;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

.btn-player,
#playlist li {
    background-color: unset;
    border: none;
    padding: 1rem;
    border-radius: .5rem;
    cursor: pointer;
}

.btn-player i {
    font-size: large;
    color: gray
}

.btn-player:hover,
#playlist li:hover {
    background-color: #eee;
}

.btn-player:hover i {
    color: #fff;

}

#playlist {
    flex-grow: 2;
}

#playlist li {
    list-style: none;
    margin: .25rem 0;
    border-bottom: 1px solid #eee;
    text-transform: capitalize;
}

#progressBar {
    display: inline-block;
    min-width: 60%;
    height: 3px;
    background-color: #eee;
    vertical-align: middle;
    margin: 0 .5rem;
}

#progress {
    display: block;
    height: 100%;
    width: 0;
    background-color: salmon;
    transition: width .5s ease;
}

#timestamp {
    display: inline;
    font-size: smaller;
    color: gray;
}

.hidden {
    display: none;
}

/* Single Audio Player */
.box {
    position: relative;
}

#playsingle {
    position: absolute;
    top: 0;
    width: 100%;
    height: 100%;
}

#playsingle i {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 4rem;
    color: gray;
    animation: fade .8s ease-in .5s 1;
    animation-fill-mode: forwards
}

@keyframes fade {
    0% {
        opacity: 1;
    }

    100% {
        opacity: 0;
    }
}

@media screen and (max-width:600px) {

    #player ul,
    #playlist {
        padding: 0;
    }

    #controls {
        display: grid;
        grid-template-columns: 1fr 1fr 1fr;
        align-items: center;
    }

    #progressBar {
        grid-column: 1/3;
        margin: 0 -1rem 0 0;
    }

    #timestamp {
        text-align: center;
    }
}

@media screen and (max-width:400px) {
    #player .display {
        flex-direction: column;
    }

    #player ul,
    #playlist {
        width: 100%;
    }

    #playlist li {
        margin: 0;
        text-align: center;
        padding: .8rem;
    }

    #player .cover {
        margin-top: -4rem;
    }
}