*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', Arial, Helvetica, sans-serif;
}

.container{
    width: 100%;
    height: 100vh;
    background: #292f36;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
}

.player{
    background: #e8ebf7;
    max-width: 400px;
    height: 90vh;
    padding: 25px 35px;
    text-align: center;
    border-radius: 5px;
    border: 5px solid #8aadde;
    display: flex;
    align-items: center;
    justify-content: center;
}

nav{
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 30px;
}

nav .circle{
    background: #fff;
    color: #de1a1a;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 5px 10px rgba(172, 190, 216, 0.9);
}

.song-img{
    width: 200px;
    height: 200px;
    border: 8px solid #fff;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 10px 60px rgba(172, 190, 216, 0.9);
}

.player h1{
    font-size: 20px;
    margin-top: 20px;
    color: #333;
}

.player p{
    font-size: 14px;
    color: #333;
}

#progress{
    -webkit-appearance: none;
    width: 100%;
    height: 6px;
    background: #de1a1a;
    border-radius: 4px;
    cursor: pointer;
    margin: 40px 0;
}

#progress::-webkit-slider-thumb{
    -webkit-appearance: none;
    background: #de1a1a;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    border: 8px solid #fff;
    box-shadow: 0 5px 5px rgba(172, 190, 216, 0.9);
}

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

.controls div{
    background: #fff;
    color: #de1a1a;
    border-radius: 50%;
    width: 60px;
    height: 60px;
    margin: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 5px 10px rgba(172, 190, 216, 0.9);
}

.controls div:nth-child(2){
    transform: scale(1.5);
    background: #de1a1a;
    color: #fff;
}

@media (max-width: 400px) {
    .player{
        width: auto;
        padding: 15px;
        margin: 0 20px;
        border: 2px solid #8aadde;
    }

    nav .circle{
        width: 30px;
        height: 30px;
    }

    .song-img{
        width: 150px;
        height: 150px;
        border: 4px solid #fff;
    }

    .player h1{
        font-size: 15px;
    }

    .player p{
        font-size: 12px;
    }

    .controls div{
        width: 50px;
        height: 50px;
        margin: 20px;
    }

    .controls div:nth-child(2){
        transform: scale(1);
    }

}