:root, [data-theme="default"] {
    --color-primary-darker: hsl(220, 90%, 36%);
    --color-primary-darker-h: 220;
    --color-primary-darker-s: 90%;
    --color-primary-darker-l: 36%;
    --color-primary-dark: hsl(220, 90%, 46%);
    --color-primary-dark-h: 220;
    --color-primary-dark-s: 90%;
    --color-primary-dark-l: 46%;
    --color-primary: hsl(220, 90%, 56%);
    --color-primary-h: 220;
    --color-primary-s: 90%;
    --color-primary-l: 56%;
    --color-primary-light: hsl(220, 90%, 66%);
    --color-primary-light-h: 220;
    --color-primary-light-s: 90%;
    --color-primary-light-l: 66%;
    --color-primary-lighter: hsl(220, 90%, 76%);
    --color-primary-lighter-h: 220;
    --color-primary-lighter-s: 90%;
    --color-primary-lighter-l: 76%;
    --color-accent-darker: hsl(355, 90%, 41%);
    --color-accent-darker-h: 355;
    --color-accent-darker-s: 90%;
    --color-accent-darker-l: 41%;
    --color-accent-dark: hsl(355, 90%, 51%);
    --color-accent-dark-h: 355;
    --color-accent-dark-s: 90%;
    --color-accent-dark-l: 51%;
    --color-accent: hsl(355, 90%, 61%);
    --color-accent-h: 355;
    --color-accent-s: 90%;
    --color-accent-l: 61%;
    --color-accent-light: hsl(355, 90%, 71%);
    --color-accent-light-h: 355;
    --color-accent-light-s: 90%;
    --color-accent-light-l: 71%;
    --color-accent-lighter: hsl(355, 90%, 81%);
    --color-accent-lighter-h: 355;
    --color-accent-lighter-s: 90%;
    --color-accent-lighter-l: 81%;
    --color-black: hsl(240, 8%, 12%);
    --color-black-h: 240;
    --color-black-s: 8%;
    --color-black-l: 12%;
    --color-white: hsl(0, 0%, 100%);
    --color-white-h: 0;
    --color-white-s: 0%;
    --color-white-l: 100%;
    --color-success-darker: hsl(94, 48%, 36%);
    --color-success-darker-h: 94;
    --color-success-darker-s: 48%;
    --color-success-darker-l: 36%;
    --color-success-dark: hsl(94, 48%, 46%);
    --color-success-dark-h: 94;
    --color-success-dark-s: 48%;
    --color-success-dark-l: 46%;
    --color-success: hsl(94, 48%, 56%);
    --color-success-h: 94;
    --color-success-s: 48%;
    --color-success-l: 56%;
    --color-success-light: hsl(94, 48%, 66%);
    --color-success-light-h: 94;
    --color-success-light-s: 48%;
    --color-success-light-l: 66%;
    --color-success-lighter: hsl(94, 48%, 76%);
    --color-success-lighter-h: 94;
    --color-success-lighter-s: 48%;
    --color-success-lighter-l: 76%;
    --color-error-darker: hsl(355, 90%, 41%);
    --color-error-darker-h: 355;
    --color-error-darker-s: 90%;
    --color-error-darker-l: 41%;
    --color-error-dark: hsl(355, 90%, 51%);
    --color-error-dark-h: 355;
    --color-error-dark-s: 90%;
    --color-error-dark-l: 51%;
    --color-error: hsl(355, 90%, 61%);
    --color-error-h: 355;
    --color-error-s: 90%;
    --color-error-l: 61%;
    --color-error-light: hsl(355, 90%, 71%);
    --color-error-light-h: 355;
    --color-error-light-s: 90%;
    --color-error-light-l: 71%;
    --color-error-lighter: hsl(355, 90%, 81%);
    --color-error-lighter-h: 355;
    --color-error-lighter-s: 90%;
    --color-error-lighter-l: 81%;
    --color-warning-darker: hsl(46, 100%, 41%);
    --color-warning-darker-h: 46;
    --color-warning-darker-s: 100%;
    --color-warning-darker-l: 41%;
    --color-warning-dark: hsl(46, 100%, 51%);
    --color-warning-dark-h: 46;
    --color-warning-dark-s: 100%;
    --color-warning-dark-l: 51%;
    --color-warning: hsl(46, 100%, 61%);
    --color-warning-h: 46;
    --color-warning-s: 100%;
    --color-warning-l: 61%;
    --color-warning-light: hsl(46, 100%, 71%);
    --color-warning-light-h: 46;
    --color-warning-light-s: 100%;
    --color-warning-light-l: 71%;
    --color-warning-lighter: hsl(46, 100%, 81%);
    --color-warning-lighter-h: 46;
    --color-warning-lighter-s: 100%;
    --color-warning-lighter-l: 81%;
    --color-bg: hsl(0, 0%, 100%);
    --color-bg-h: 0;
    --color-bg-s: 0%;
    --color-bg-l: 100%;
    --color-contrast-lower: hsl(0, 0%, 95%);
    --color-contrast-lower-h: 0;
    --color-contrast-lower-s: 0%;
    --color-contrast-lower-l: 95%;
    --color-contrast-low: hsl(240, 1%, 83%);
    --color-contrast-low-h: 240;
    --color-contrast-low-s: 1%;
    --color-contrast-low-l: 83%;
    --color-contrast-medium: hsl(240, 1%, 48%);
    --color-contrast-medium-h: 240;
    --color-contrast-medium-s: 1%;
    --color-contrast-medium-l: 48%;
    --color-contrast-high: hsl(240, 4%, 20%);
    --color-contrast-high-h: 240;
    --color-contrast-high-s: 4%;
    --color-contrast-high-l: 20%;
    --color-contrast-higher: hsl(240, 8%, 12%);
    --color-contrast-higher-h: 240;
    --color-contrast-higher-s: 8%;
    --color-contrast-higher-l: 12%
}

@supports (--css: variables) {
    @media (min-width: 64rem) {
        :root {
            --space-unit: 1.25em
        }
    }
}

:root {
    --radius: 0.25em
}

:root {
    --font-primary: sans-serif;
    --text-base-size: 1em;
    --text-scale-ratio: 1.2;
    --text-xs: calc(1em / var(--text-scale-ratio) / var(--text-scale-ratio));
    --text-sm: calc(var(--text-xs) * var(--text-scale-ratio));
    --text-md: calc(var(--text-sm) * var(--text-scale-ratio) * var(--text-scale-ratio));
    --text-lg: calc(var(--text-md) * var(--text-scale-ratio));
    --text-xl: calc(var(--text-lg) * var(--text-scale-ratio));
    --text-xxl: calc(var(--text-xl) * var(--text-scale-ratio));
    --text-xxxl: calc(var(--text-xxl) * var(--text-scale-ratio));
    --body-line-height: 1.4;
    --heading-line-height: 1.2;
    --font-primary-capital-letter: 1
}

@supports (--css: variables) {
    @media (min-width: 64rem) {
        :root {
            --text-base-size: 1.25em;
            --text-scale-ratio: 1.25
        }
    }
}

:root {
    --btn-font-size: 1em;
    --btn-font-size-sm: calc(var(--btn-font-size) - 0.2em);
    --btn-font-size-md: calc(var(--btn-font-size) + 0.2em);
    --btn-font-size-lg: calc(var(--btn-font-size) + 0.4em);
    --btn-radius: 0.25em;
    --btn-padding-x: var(--space-sm);
    --btn-padding-y: var(--space-xs)
}

:root {
    --form-control-padding-x: var(--space-sm);
    --form-control-padding-y: var(--space-xs);
    --form-control-radius: 0.25em
}


: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(5, 76%, 62%);
    --cd-color-3-h: 5;
    --cd-color-3-s: 76%;
    --cd-color-3-l: 62%;
    --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
        }
    }
}

.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: hsla(5, 76%, 62%, 1);
    background-color: hsla(var(--cd-color-3-h), var(--cd-color-3-s), var(--cd-color-3-l), 1)
}

.js .cd-top {
    visibility: hidden;
    opacity: 0;
    transition: opacity .3s, visibility .3s, background-color .3s
}

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

/*.js .cd-top--fade-out {*/
/*    opacity: .5*/
/*}*/

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