:root{
    /* ----------------------------------- MARGINS ---------------------------------- */
    --mb-1: 0.5rem;
    --mb-2: 1rem;
    --mb-3: 1.5rem;
    --mb-4: 2rem;
    --mb-5: 2.5rem;

    /* ------------------------------------ COLORS --------------------------------- */

    --color-purple: #735CFF;
    --text-color: white;
    --sub-color: #868686;
    --color-dark: rgb(19, 19, 19);

    /* ------------------------------------ FONTS --------------------------------- */

    --font-poppins: 'Poppins', sans-serif;
    --font-bold: 600;
    --font-semibold: 500;
    --font-normal: normal;

    --font-biggest: 3rem;
    --font-bigger: 2rem;
    --font-big: 1.5rem;
    --font-sizenormal: 1rem;
    --font-small: .9rem;
    --font-smaller: .8rem;
    --font-smallest: .7rem;

    --z-indexmax: 999;
}

/* --------------------------------- MOBILE --------------------------------- */
@media screen and (min-width: 320px){
    .loop{
        padding: 0 1rem;
    }
    .project_link{
        font-size: var(--font-bigger);
    }
    .menu_item{
        margin: 1rem 0;
    }
}

@media screen and (min-width: 375px){
    .cd_img{
        width: 75%;
        margin-bottom: var(--mb-3);
        max-width: 300px;
    }
}

/* -------------------------------- TABLET ------------------------------- */
@media screen and (min-width: 600px){
    header{
        margin-bottom: var(--mb-5);
        padding: 1.5rem;
    }
    .logo-mobile{
        display: none;
    }
    .logo-desk{
        display: block;
        width: 80%;
    }
    .menu_line{
        width: 25px;
        height: 3px;
    }
    .cd_img{
        width: 65%;
        max-width: initial;
    }
    .music_title{
        font-size: var(--font-big);
    }
    .circle{
        width: 65px;
        height: 65px;
    }
    .icon{
        font-size: 4rem;
    }
    .icon_play {
        top: 1px;
        left: 3px;
    }
    .icon_pause{
        left: 0px;
    }
    .btn-exit{
        font-size: 3rem;
    }
    .project_link{
        font-size: var(--font-biggest);
    }
    .loop li{
        margin-top: 85px;
    }
}
@media screen and (min-width: 768px){
    .cd_img{
        width: 55%;
    }
}

/* ---------------------------- LAPTOP & DESKTOP ---------------------------- */
@media screen and (min-width: 1024px){
    /* ------------------------------ header & nav ------------------------------ */
    header{
        padding: 1.5rem;
        margin-bottom: 0;
        position: fixed;
        width: 100%;
    }
    .header_content{
        width: 100%;
    }
    .menu{
        display: none;
    }
    .main_nav{
        position: relative;
    }
    .nav_list{
        opacity: 1;
        visibility: visible;
        flex-direction: row;
        background-color: transparent;
        justify-content: flex-end;
        height: auto;
        left: initial;
        right: initial;
        bottom: initial;
        position: relative;
        z-index: 1111;
    }
    .menu_item{
        margin: 0;
    }
    .menu_link{
        text-transform: initial;
        font-size: var(--font-sizenormal);
        padding: 0 var(--mb-3);
        transition: all .5s ease-out;
    }
    .menu_link:hover{
        color: var(--color-purple);
    }
    .menu_link::after{
        width: 0;
    }
    .menu_active{
        color: var(--color-purple);
    }
    .menu_active::before{
        content: "";
        display: none;
    }

    .project_link{
        font-size: 4rem;
    }
/* ------------------------------ audio player ------------------------------ */
    .audio_player{
        /* visibility: visible;
        opacity: 1; */
        width: 45%;
        margin-left: auto;
        background-color: transparent;
        backdrop-filter: initial;
    }
    .cd_img{
        width: 80%;
    }
    .btn-exit{
        display: none;
    }
    .bg-blur{
        filter: none;
    }
    .noscroll{
        overflow: auto;
    }
    .player_open{
        z-index: 1000;
    }
}
@media screen and (min-width: 1280px){
    header{
        padding: 1.5rem 5rem;
    }
    .loop{
        width: 100%;
        padding: 0 5rem;
        z-index: 0;
    }
    .project_link{
        font-size: 4rem;
    }
    .audio_player{
        width: 50%;
    }
    .cd_img{
        width: 65%;
    }
}
@media screen and (min-width: 1600px){
    .audio_player{
        width: 40%;
    }
    .cd_img{
        width: 70%;
    }
    .project_link{
        font-size: 6rem;
    }
}
@media screen and (min-width: 1920px){
    header{
        min-width: 1920px;
    }
    .cd_img{
        width: 65%;
        margin-bottom: var(--mb-5);
    }
    .loop li{
        margin-top: 50px;
    }
}