/*!
 * Copyright 2021 Progress Software Corporation and/or one of its subsidiaries or affiliates. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
// TabStrip
.k-tabstrip {
    margin: 0;
    padding: @tabstrip-padding-y @tabstrip-padding-x;
    border-width: @tabstrip-border-width;
    border-style: solid;
    border-color: transparent;
    box-sizing: border-box;
    outline: 0;
    position: relative;
    display: flex;
    flex-flow: column nowrap;
}


// Tabstrip items
.k-tabstrip-items-wrapper {
    border-width: 0;
    border-style: solid;
    border-color: inherit;
}
.k-tabstrip-items {
    outline: 0;
    display: flex;
    flex-direction: row;
    flex: 0 0 auto;
    position: relative;

    .k-item {
        margin: 0;
        padding: 0;
        border: @tabstrip-item-border-width solid transparent;
        position: relative;
        overflow: hidden;
        flex-shrink: 0;
        display: flex;
        flex-direction: row;
        align-items: stretch;
        justify-items: stretch;
        outline: 0;
    }

    .k-tab-on-top {
        z-index: 1;
    }

    .k-link {
        padding: @tabstrip-item-padding-y @tabstrip-item-padding-x;
        color: inherit;
        cursor: pointer;
        display: inline-flex;
        vertical-align: middle;
        flex: 1 1 auto;
        flex-direction: row;
        align-content: center;
        align-items: center;
    }
}

.k-tabstrip-content,
.k-tabstrip > .k-content {
    padding: @tabstrip-content-padding-y @tabstrip-content-padding-x;
    border-width: @tabstrip-content-border-width;
    border-style: solid;
    border-color: inherit;
    display: none;
    overflow: auto;
    flex: 1 1 auto;

    &.k-state-active {
        display: block;
    }

    &:focus,
    &.k-state-focused {
        outline-width: 1px;
        outline-style: dotted;
        outline-offset: -1px;
    }
}


// Loading Indicator
.k-tabstrip-items .k-loading
{
    top: 0;
    left: 0;
    height: 0;
    width: 20%;
    position: absolute;
    background: transparent;
    border-top: 1px solid transparent;
    border-color: inherit;
    transition: width 200ms linear;
    .animation(k-tab-loader 1s ease-in-out infinite);
}

.k-tabstrip-items .k-progress
{
    .animation(none);
}

.k-tabstrip-items .k-loading.k-complete
{
    width: 100%;
    .animation(none);
}

@keyframes k-tab-loader {
    0% { left: 0; }
    50% { left: 80%; }
    100% { left: 0; }
}

// Tabstrip orientation
.k-tabstrip-top {
    flex-direction: column;

    > .k-tabstrip-items-wrapper {
        border-bottom-width: @tabstrip-items-wrap-border-width;

        .k-item {
            margin-bottom: -@tabstrip-item-border-width;
            border-radius: @tabstrip-item-border-radius @tabstrip-item-border-radius 0 0;
        }
        .k-item + .k-item {
            margin-left: @tabstrip-item-gap;
        }

        .k-item.k-state-active {
            border-bottom-color: transparent;
        }
    }

    > .k-content,
    > .k-tabstrip-content {
        border-top-width: 0;
    }
}
.k-tabstrip-bottom {
    flex-direction: column;

    > .k-tabstrip-items-wrapper {
        border-top-width: @tabstrip-items-wrap-border-width;

        .k-item {
            margin-top: -@tabstrip-item-border-width;
            border-radius: 0 0 @tabstrip-item-border-radius @tabstrip-item-border-radius;
        }
        .k-item + .k-item {
            margin-left: @tabstrip-item-gap;
        }

        .k-item.k-state-active {
            border-top-color: transparent;
        }

        .k-loading {
            top: auto;
            bottom: 0;
        }
    }

    > .k-content,
    > .k-tabstrip-content {
        border-bottom-width: 0;
    }
}
.k-tabstrip-left {
    flex-direction: row;

    > .k-tabstrip-items-wrapper {
        border-right-width: @tabstrip-items-wrap-border-width;

        > .k-tabstrip-items {
            display: inline-flex;
            flex-direction: column;
        }

        .k-item {
            margin-right: -@tabstrip-item-border-width;
            border-radius: @tabstrip-item-border-radius 0 0 @tabstrip-item-border-radius;
        }
        .k-item + .k-item {
            margin-top: @tabstrip-item-gap;
        }

        .k-item.k-state-active {
            border-right-color: transparent;
        }
    }

    > .k-content,
    > .k-tabstrip-content {
        border-left-width: 0;
    }
}
.k-tabstrip-right {
    flex-direction: row-reverse;

    > .k-tabstrip-items-wrapper {
        border-left-width: @tabstrip-items-wrap-border-width;

        > .k-tabstrip-items {
            display: inline-flex;
            flex-direction: column;
        }

        .k-item {
            margin-left: -@tabstrip-item-border-width;
            border-radius: 0 @tabstrip-item-border-radius @tabstrip-item-border-radius 0;
        }
        .k-item + .k-item {
            margin-top: @tabstrip-item-gap;
        }

        .k-item.k-state-active {
            border-left-color: transparent;
        }
    }

    > .k-content,
    > .k-tabstrip-content {
        border-right-width: 0;
    }
}



// Scrolling
.k-tabstrip.k-tabstrip-scrollable {
    > .k-tabstrip-items-wrapper {
        border-width: 0;

        > .k-tabstrip-items {
            flex: 1 1 auto;
            white-space: nowrap;
            overflow: hidden;
        }

        > .k-button {
            flex-shrink: 0;
            align-self: stretch;
        }

        &.k-hstack {
            > .k-button {
                height: auto;
            }
        }

        &.k-vstack {
            > .k-button {
                width: auto;
            }
        }
    }

    > .k-content,
    > .k-tabstrip-content {
        border-width: @tabstrip-content-border-width;
    }
}




// Disabled
.k-tabstrip .k-button.k-disabled {
    pointer-events: none;
    opacity: 0;
}


.k-rtl .k-tabstrip,
.k-tabstrip.k-rtl,
.k-tabstrip[dir="rtl"] {

    &.k-tabstrip-left,
    &.k-tabstrip-right {
        > .k-tabstrip-items-wrapper {
            order: 1;
        }

        > .k-content { order: 0; }
        > .k-tabstrip-content { order: 0; }
    }

    .k-tabstrip-prev,
    .k-tabstrip-next {
        transform: scaleX(-1);
    }

}