@import '../../common/styles/_abstract-control';
@import '../../common/styles/colors';
@import '../../common/styles/text-base';
@import '../../common/styles/media/_screen';
@import '../../common/styles/rounded-corner-base';
@import '../../common/styles/drop';

@tab-height: 40px;
@tab-spacing: 30px;
@tab-outline-spacing: 4px;
@tab-outline-width: 4px;
@tab-element-height: 20px;
@icon-link-height: 34px;

@tab-element-spacing: @tab-spacing / 2;
@tab-element-spacing-narrow: @tab-element-spacing / 2;
@outlined-tab-horizontal-margin: @tab-element-spacing - @tab-outline-spacing;
@outlined-tab-vertical-margin: (@tab-height - @tab-element-height - (@tab-outline-spacing * 2)) / 2;
@tab-vertical-padding: (@tab-height - @tab-element-height) / 2;
@tab-min-horizontal-spacing: @tab-outline-spacing + @tab-outline-width;

@tab-search-spacing: 12px;

.bloko-tabs-wrapper {
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.bloko-tabs-wrapper_narrow {
    .bloko-tabs {
        border-bottom-color: transparent;
    }

    .bloko-tabs__item {
        padding-left: 0;
        padding-right: @tab-element-spacing-narrow;
    }

    .bloko-tabs__item_active::after {
        left: 0;
        right: @tab-element-spacing-narrow;
    }

    .bloko-tabs__item + .bloko-tabs__item {
        padding-left: @tab-element-spacing-narrow;
        padding-right: @tab-element-spacing-narrow;
    }

    .bloko-tabs__item + .bloko-tabs__item_active::after {
        left: @tab-element-spacing-narrow;
        right: @tab-element-spacing-narrow;
    }
}

.bloko-tabs {
    border-bottom: 1px solid @color-gray-30;
    white-space: nowrap;
    background: transparent;
    transition: margin 0.3s;
    will-change: margin;
}

.bloko-tabs__items {
    display: inline-block;
}

.bloko-tabs__item {
    .bloko-text-medium();

    display: inline-flex;
    position: relative;
    cursor: pointer;
    height: @tab-element-height;
    box-sizing: content-box;
    border-width: 0;
    padding: @tab-vertical-padding @tab-element-spacing @tab-vertical-padding @tab-min-horizontal-spacing;
    color: @color-gray-80;
    align-items: center;

    &,
    &:visited,
    &:focus {
        text-decoration: none;
        outline: none;
        background: transparent;
        transition: color 0.1s;
    }

    &:global(.focus-visible) {
        padding: @tab-outline-spacing;
        margin: @outlined-tab-vertical-margin
                @outlined-tab-horizontal-margin
                @outlined-tab-vertical-margin
                @tab-outline-width;
        border-radius: @rounded-corner-default;
        .abstract-control-focus-visible();
    }

    &:hover,
    &:active,
    &:focus {
        color: @color-blue-60;
        text-decoration: none;
    }
}

.bloko-tabs__item_active {
    cursor: default;
    color: @color-blue-60;

    &::after {
        content: ' ';
        position: absolute;
        border-bottom: 1px @color-blue-60 solid;
        bottom: -1px;
        left: @tab-min-horizontal-spacing;
        right: @tab-element-spacing;
    }

    &:global(.focus-visible)::after {
        left: @tab-outline-spacing;
        right: @tab-outline-spacing;
        bottom: -(@outlined-tab-vertical-margin) - 1; // если убрать скобки ломается typescript-plugin-css-modules
    }
}

.bloko-tabs__item + .bloko-tabs__item {
    padding-left: @tab-element-spacing;

    &:global(.focus-visible) {
        padding-left: @tab-outline-spacing;
        margin-left: @outlined-tab-horizontal-margin;
    }

    &:global(.focus-visible)::after {
        left: @tab-outline-spacing;
    }
}

.bloko-tabs__item + .bloko-tabs__item_active::after {
    left: @tab-element-spacing;
}

._icon-container() {
    .bloko-icon-link {
        margin: 0;
    }
}

.bloko-tabs__icon-container {
    cursor: pointer;
    z-index: 1;
    position: absolute;
    right: @tab-outline-width;
    top: floor(((@tab-height - @icon-link-height) / 2)); // если убрать скобки ломается typescript-plugin-css-modules

    ._icon-container();
}

:global(.bloko-tabs__icon-container) {
    ._icon-container();
}

.bloko-tabs__icon-container_hidden {
    display: none;
}

.bloko-tabs__dropdown {
    max-height: 300px;
    overflow-y: auto;
    -ms-overflow-style: -ms-autohiding-scrollbar;
    padding: 5px 0;

    @media @screen-lt-s {
        .bloko-drop_fullscreen-on-xs & {
            max-height: none;
        }
    }
}

.bloko-tabs-left-glare {
    position: absolute;
    top: 0;
    left: -30px;
    width: 30px;
    height: @tab-height;
    background: linear-gradient(to left, fade(@color-white, 0), @color-white);
    transition: left 0.5s;
    pointer-events: none;
}

.bloko-tabs-left-glare_showed {
    left: 0;
}

.bloko-tabs-right-glare {
    position: absolute;
    top: 0;
    right: -70px;
    width: 70px;
    height: @tab-height;
    background: linear-gradient(to right, fade(@color-white, 0), @color-white 30px);
    transition: right 0.5s;
    pointer-events: none;
}

.bloko-tabs-right-glare_showed {
    right: 0;
}

.bloko-tabs-scroll {
    transition: none;
    user-select: none;
}

.bloko-tabs-scroll_ongoing {
    pointer-events: none;
}

.bloko-tabs__search {
    margin-top: -@bloko-drop-menu-wrapper-padding;
    padding: @tab-search-spacing @tab-search-spacing;
    width: 100%;
    min-width: calc(@bloko-drop-menu-max-width - @tab-search-spacing * 2);
    box-sizing: border-box;

    @media @screen-lt-s {
        min-width: initial;
        position: sticky;
        top: 0;
        z-index: 1;
        background: @color-white;
    }
}

.bloko-tabs__dropdown-items-container {
    max-height: 300px;
    height: auto;
    overflow-y: auto;

    @media @screen-lt-s {
        .bloko-drop_fullscreen-on-xs & {
            max-height: none;
        }
    }
}

.bloko-tabs__dropdown-items-empty {
    text-align: center;
    padding: 0 @tab-search-spacing;
}