:root {
    --background-color-index: #F9FAFB;

   
    
}

:root[data-theme="dark"] {
    --background-color-index: #0F172A;
}

body {
    margin: 0px;
    background-color: var(--background-color-index);
}

.page {
    display: flex;
    flex-direction: column;

}

.layout {
    display: flex;
}

header {
    height: 50px;
    width: 100%;
    position: fixed;
    top: 0;
}

aside {
    width: 20%;
    display: block;
    position: fixed;
    top: 50px;
}

main {
    width: 80%;
    margin: 50px 0 0 20%;
}

@media screen and (min-width: 759px) {
    aside {
        display: block;
        width: 20%;
        top: 50px;
    }

    main {
        width: 80%;
        margin: 50px 0 0 20%;
    }
}

@media screen and (max-width: 768px) {

    aside {
        width: 200px;
        top: 50px;
        transform: translateX(-100%);
        transition: transform .35s cubic-bezier(.4, 0, .2, 1);
        will-change: transform;
    }

    aside.open {
        transform: translateX(0);
    }

    main {
        width: 100%;
        margin: 50px 0 0 0;
    }



}