/* Variables */
$skeleton-element-color: rgba(0, 0, 0, 0.17) !default;

$skeleton-loading-animation-time: 1.3s !default;

$skeleton-margin-standart: 16px !default;

$skeleton-wrapper-padding: $skeleton-margin-standart !default;

$skeleton-margin-small: calc($skeleton-margin-standart / 2) !default;

$skeleton-card-box-shadow: 0 2px 4px 1px rgba(0, 0, 0, 0.17) !default;
$skeleton-card-background-color: #ffffff !default;
$skeleton-card-border-radius: 5px !default;

$skeleton-circle-size: 50px !default;

$skeleton-hr-height: 2px !default;

$skeleton-line-border-radius: 15px !default;
$skeleton-line-height: 12px !default;

$skeleton-headline-height: calc($skeleton-line-height * 2) !default;

$skeleton-square-height: 150px !default;

/* Animation */
@keyframes ssc-loading {
    from {
        transform: translateX(-100%);
    }
    to {
        transform: translateX(100%);
    }
}

/* Animation partial */
%ssc-animation {
    display: block;
    background-color: $skeleton-element-color;
    position: relative;
    overflow: hidden;

    &:after {
        content: "";
        animation: ssc-loading $skeleton-loading-animation-time infinite;
        height: 100%;
        left: 0;
        position: absolute;
        right: 0;
        top: 0;
        transform: translateX(-100%);
        z-index: 1;
        background: linear-gradient(90deg, transparent, hsla(0, 0%, 100%, 0.3), transparent);
    }
}

/** Main class */
.ssc {
    cursor: progress;
    user-select: none;
}

/** Helpers classes */
.ssc {
    .mb {
        margin-bottom: $skeleton-margin-standart;
    }

    .mt {
        margin-top: $skeleton-margin-standart;
    }

    .mr {
        margin-right: $skeleton-margin-standart;
    }

    .ml {
        margin-left: $skeleton-margin-standart;
    }

    .mbs {
        margin-bottom: $skeleton-margin-small;
    }

    .mts {
        margin-top: $skeleton-margin-small;
    }

    .mrs {
        margin-right: $skeleton-margin-small;
    }

    .mls {
        margin-left: $skeleton-margin-small;
    }

    .w-10 {
        width: 10%;
    }

    .w-20 {
        width: 20%;
    }

    .w-30 {
        width: 30%;
    }

    .w-40 {
        width: 40%;
    }

    .w-50 {
        width: 50%;
    }

    .w-60 {
        width: 60%;
    }

    .w-70 {
        width: 70%;
    }

    .w-80 {
        width: 80%;
    }

    .w-90 {
        width: 90%;
    }

    .w-100 {
        width: 100%;
    }

    .flex {
        display: flex;
    }

    .inline-flex {
        display: inline-flex;
    }

    .flex-column {
        flex-direction: column;
    }

    .flex-column-reverse {
        flex-direction: column-reverse;
    }

    .flex-row {
        flex-direction: row;
    }

    .flex-row-reverse {
        flex-direction: row-reverse;
    }

    .align-center {
        align-items: center;
    }

    .align-start {
        align-items: flex-start;
    }

    .align-end {
        align-items: flex-end;
    }

    .align-stretch {
        align-items: stretch;
    }

    .justify-start {
        justify-content: start;
    }

    .justify-center {
        justify-content: center;
    }

    .justify-end {
        justify-content: end;
    }

    .justify-between {
        justify-content: space-between;
    }

    .justify-around {
        justify-content: space-around;
    }
}

/** Wrapper class */
.ssc-wrapper {
    padding: $skeleton-wrapper-padding;
}

/* Figures, Objects */
.ssc-card {
    display: block;
    width: 100%;
    height: 100%;
    border-radius: $skeleton-card-border-radius;
    box-shadow: $skeleton-card-box-shadow;
    background-color: $skeleton-card-background-color;
}

.ssc-circle {
    border-radius: 50%;
    width: $skeleton-circle-size;
    height: $skeleton-circle-size;

    @extend %ssc-animation;
}

.ssc-hr {
    width: 100%;
    height: $skeleton-hr-height;

    @extend %ssc-animation;
}

.ssc-line {
    border-radius: $skeleton-line-border-radius;
    width: 100%;
    height: $skeleton-line-height;

    @extend %ssc-animation;
}

.ssc-head-line {
    border-radius: $skeleton-line-border-radius;
    width: 100%;
    height: $skeleton-headline-height;

    @extend %ssc-animation;
}

.ssc-square {
    width: 100%;
    height: $skeleton-square-height;

    @extend %ssc-animation;
}