@import url("https://fonts.googleapis.com/css?family=Bitter|Open+Sans:400,700");




:root {
    --cd-color-1: hsl(53, 29%, 95%);
    --cd-color-1-h: 53;
    --cd-color-1-s: 29%;
    --cd-color-1-l: 95%;
    --cd-color-2: hsl(330, 13%, 42%);
    --cd-color-2-h: 330;
    --cd-color-2-s: 13%;
    --cd-color-2-l: 42%;
    --cd-color-3: hsl(204, 55%, 37%);
    --cd-color-3-h: 204;
    --cd-color-3-s: 55%;
    --cd-color-3-l: 37%;
    --cd-back-to-top-size: 40px;
    --cd-back-to-top-margin: 20px;
    --font-primary: "Bitter", sans-serif;
    --font-secondary: "Open Sans", sans-serif;
}

@supports (--css: variables) {
    @media (min-width: 64rem) {
        :root {
            --cd-back-to-top-size: 60px;
            --cd-back-to-top-margin: 30px;
        }
    }
}




/*Button*/
.cd-top {
    position: fixed;
    bottom: 20px;
    bottom: var(--cd-back-to-top-margin);
    right: 20px;
    right: var(--cd-back-to-top-margin);
    display: inline-block;
    height: 40px;
    height: var(--cd-back-to-top-size);
    width: 40px;
    width: var(--cd-back-to-top-size);
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.05);
    background: url(../../img/cd-top-arrow.svg) no-repeat center 50%;
    background-color: green;
    background-color: hsla(var(--cd-color-3-h), var(--cd-color-3-s), var(--cd-color-3-l), 0.8);
    z-index: 999;
}

.js .cd-top {
    visibility: hidden;
    opacity: 0;
    transition: opacity 0.3s, visibility 0.3s, background-color 0.3s;
}

.js .cd-top--is-visible {
    visibility: visible;
    opacity: 1;
}

.js .cd-top--fade-out {
    opacity: 0.5;
}

.js .cd-top:hover {
    background-color: hsl(5, 76%, 62%);
    background-color: var(--cd-color-3);
    opacity: 1;
}

.text-replace {
    overflow: hidden;
    color: transparent;
    text-indent: 100%;
    white-space: nowrap;
}