// /**
//  * Copyright © Magento, Inc. All rights reserved.
//  * See COPYING.txt for license details.
//  */

//
//  Variables
//  _____________________________________________

@timeline__background-color: @color-white-fog2;
@timeline__border-color: @color-gray60;
@timeline__margin-top: @indent__base;
@timeline__scale: 1;
@timeline__no-records__background-color: @color-white;

@timeline-item__height: 3.6rem;
@timeline-unit__width: 100%/7;

@timeline-event__background-color: #ccf391;
@timeline-event__border-color: #81c21d;
@timeline-event__active__background-color: #bceeff;
@timeline-event__active__border-color: #56c2e6;
@timeline-event__active__permanent__color: @color-blue-pure;
@timeline-event__no-records__background-color: transparent;
@timeline-event__no-records__border-color: transparent;
@timeline-event__no-records__color: @color-gray20;

@timeline-action__color: #76c004;
@timeline-action__active__color: #56c2e6;

@timeline-summary__background-color: #86de00;
@timeline-summary__active__background-color: #79dcff;

@timeline-legend__color: @color-very-dark-gray;
@timeline-past__boder-color: fade(@color-tomato-brick, 55);

@timeline-date__background-color: @color-white;
@timeline-date__color: @color-very-dark-gray-black;
@timeline-date__padding: 1rem .3rem;

@timeline-priority-scale__color: @color-gray80;

@timeline-unit-gradient-end__color: #979999;
@timeline-unit-gradient-start__color: #3e4040;

//
//  Timeline
//  ---------------------------------------------

.timeline {
    &:extend(.abs-clearer);
    margin-top: @timeline__margin-top;
    position: relative;
    z-index: 1;
}

.timeline-content {
    background: @timeline__background-color;
    border: 1px solid @timeline__border-color;
    margin-bottom: @indent__base;
    overflow-x: scroll;
    overflow-y: hidden;
    position: relative;

    &._from-now {
        padding-left: 50px;
    }

    &._no-records {
        background: @timeline__no-records__background-color;
    }
}

.timeline-past {
    background: linear-gradient(to left, fade(@color-white, .1), fade(@color-white, 50) 25%, @color-white);
    border-right: 2px solid @timeline-past__boder-color;
    height: 100%;
    left: 0;
    position: absolute;
    top: 0;
    width: 50px;
    z-index: 3;
}

.timeline-scale {
    float: right;
    width: 160px;
}

.timeline-legend {
    float: left;
}

.timeline-legend-item {
    color: @timeline-legend__color;
    display: inline-block;
    line-height: 2rem;
    vertical-align: middle;

    &:before {
        border: 1px solid @timeline__border-color;
        content: '';
        display: inline-block;
        height: 2rem;
        margin-right: 5px;
        vertical-align: middle;
        width: 2rem;
    }


    &._update-status-active,
    &._active {
        &:before {
            background: @timeline-event__active__background-color;
        }
    }


    &._update-status-upcoming,
    &._upcoming {
        &:before {
            background: @timeline-event__background-color;
        }
    }
}

//
//  Timeline items
//  ---------------------------------------------

.timeline-items {
    .extend__list-reset-styles();
    min-height: @timeline-item__height * 7;
    position: relative;
}

.timeline-item {
    height: @timeline-item__height;
    position: relative;
    z-index: 2;

    & + .timeline-item {
        margin-top: -1px;
    }

    ._no-records & {
        margin-top: -@timeline-item__height;
        position: absolute;
        top: 50%;
        width: 100%;
    }
}

.timeline-event {
    .lib-vendor-prefix-display(flex);
    background: @timeline-event__background-color;
    border: 1px solid @timeline-event__border-color;
    cursor: pointer;
    height: @timeline-item__height;
    left: -1px;
    min-width: 5.5rem;
    overflow: hidden;
    padding: 0 @indent__s;
    position: absolute;
    right: 0;
    white-space: nowrap;
    width: auto;

    ._permanent._active &,
    ._no-records & {
        justify-content: center;
        text-align: center;
    }

    ._permanent._active & {
        color: @timeline-event__active__permanent__color;
    }

    .timeline-item._active & {
        background: @timeline-event__active__background-color;
        border-color: @timeline-event__active__border-color;
    }

    ._scroll-start:not(._active) & {
        padding-left: @indent__l;
    }

    ._scroll-end & {
        padding-right: @indent__l;
    }

    ._permanent & {
        margin-right: 23px;
        overflow: visible;
    }

    ._no-records & {
        background: @timeline-event__no-records__background-color;
        border-color: @timeline-event__no-records__border-color;
        color: @timeline-event__no-records__color;
        cursor: default;
    }
}

.timeline-event-title {
    .lib-vendor-prefix-flex-shrink(1);
    display: inline-block;
    font-weight: @font-weight__semibold;
    line-height: 3.4rem;
    max-width: 100%;
    min-width: 2.2rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;

    ._no-records & {
        font-weight: @font-weight__regular;
    }
}

.timeline-event-info {
    display: inline-block;
    line-height: 3.4rem;
    vertical-align: top;
}

.timeline-event-details {
    display: none;
}

.timeline-action {
    bottom: 0;
    display: none;
    margin: auto;
    position: absolute;
    right: 10px;
    top: 0;

    > span {
        .hidden();
    }

    &:extend(.abs-action-reset all);
    &:active {
        .scale();
    }

    &:before {
        &:extend(.abs-icon all);
        .transition(color);
        color: @timeline-action__color;
        content: @icon-arrow-right__content;
        font-size: 1.8rem;
    }

    &:hover {
        cursor: pointer;
        text-decoration: none;
    }

    .timeline-item._active & {
        &:before {
            color: @timeline-action__active__color;
        }
    }

    &._tostart {
        left: 10px;
        right: auto;

        &:before {
            content: @icon-arrow-left__content;
        }

        .timeline-item._scroll-start:not(._active) & {
            display: block;
        }
    }

    &._toend {
        .timeline-item._scroll-end & {
            display: block;
        }

        .timeline-item._permanent & {
            display: none;
        }
    }
}

//
//  Timeline svg endings
//  ---------------------------------------------

svg {
    .timeline-event & {
        display: none;
        height: 3.6rem;
        margin-right: -2.4rem;
        position: absolute;
        right: 0;
        top: -1px;
        width: 2.8rem;
    }
    ._permanent .timeline-event & {
        display: block;
    }
}

//  Initial symbol styles
.svg__timeline-ending {
    fill: inherit;
    stroke: inherit;
}

.svg__timeline-arrow {
    stroke: transparent;
}

//  Context symbol use styles
.timeline-ending {
    color: @timeline-summary__background-color;
    fill: @timeline-event__background-color;
    stroke: @timeline-event__border-color;

    .timeline-item._active & {
        color: @timeline-summary__active__background-color;
        fill: @timeline-event__active__background-color;
        stroke: @timeline-event__active__border-color;
    }
}

//
//  Timeline units row
//  ---------------------------------------------

.timeline-units {
    .extend__list-reset-styles();
    font-size: 0;
    white-space: nowrap;
}

.timeline-unit {
    border-right: 1px solid @timeline__border-color;
    display: inline-block;
    list-style-type: none;
    margin: 0;
    padding: 0;
    width: @timeline-unit__width/@timeline__scale;

    &:last-child {
        border-right: 0;
    }

    &:before {
        background-image: repeating-linear-gradient(
        180deg,
        transparent,
        transparent 5px,
        @timeline-unit-gradient-start__color 5px,
        @timeline-unit-gradient-start__color 6px,
        @timeline-unit-gradient-end__color 6px,
        @timeline-unit-gradient-end__color 7px
        );
        bottom: 0;
        content: '';
        margin-left: -1px;
        position: absolute;
        top: @font-size__tiny + 2rem + .2rem;
        width: 1px;
        z-index: 0;
    }

    &:first-child {
        &:before {
            content: none;
        }
    }

    ._no-records & {
        &:before {
            display: none;
        }
    }
}

.timeline-date {
    background: @timeline-date__background-color;
    border-bottom: 1px solid @timeline__border-color;
    color: @timeline-date__color;
    display: block;
    font-size: @font-size__tiny;
    line-height: 1;
    max-width: 100%;
    overflow: hidden;
    padding: @timeline-date__padding;
    text-align: center;
    text-overflow: ellipsis;
}

//
//  Priority scale
//  ---------------------------------------------

.timeline-priority {
    float: left;
    font-size: 1.1rem;
    font-weight: @font-weight__semibold;
    margin-right: 1.8rem;
    margin-top: @timeline__margin-top;
    text-align: center;
}

.timeline-priority-title {
    font-weight: @font-weight__bold;
    padding: @timeline-date__padding;
}

.timeline-priority-scale {
    border-left: 7px solid transparent;
    border-right: 7px solid transparent;
    border-top: 210px solid @timeline-priority-scale__color;
    height: 0;
    margin: @indent__xs auto;
    width: 0;
}