/*!
 * Copyright 2020 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.
 */
.k-stepper {
    margin: @stepper-margin-y @stepper-margin-x;
    padding: @stepper-padding-y @stepper-padding-x;
    border-width: @stepper-border-width;
    border-style: solid;
    font-size: @stepper-font-size;
    line-height: @stepper-line-height;
    position: relative;
    color: inherit;
    background: none;
    box-shadow: none;

    // Step list
    .k-step-list {
        margin: 0;
        padding: 0;
        list-style: none;
        display: flex;
        z-index: 1;
    }

    // Step link
    .k-step-link {
        outline: none;
        text-decoration: none;
        white-space: nowrap;
        display: flex;
        align-items: center;
        overflow: hidden;
    }
    .k-step-disabled {
        pointer-events: none;

        .k-step-link { cursor: default; }
    }


    // Step indicator
    .k-step-indicator {
        border-radius: @stepper-indicator-border-radius;
        margin: if(@stepper-indicator-focus-offset > 0, @stepper-indicator-focus-offset, null);
        width: @stepper-indicator-width;
        height: @stepper-indicator-height;
        border-width: @stepper-indicator-border-width;
        border-style: solid;
        display: flex;
        align-items: center;
        justify-content: center;
        position: relative;
        z-index: 1;
        overflow: visible;
        transition-property: color, background-color, border-color;
        transition-duration: .4s;
        transition-timing-function: ease-in-out;

        &::after {
            border-radius: 100%;
            content: "";
            border-width: @stepper-indicator-focus-border-width;
            border-style: solid;
            border-color: inherit;
            pointer-events: none;
            display: none;
            position: absolute;
            top: calc( -1 * @stepper-indicator-focus-calc-offset );
            right: calc( -1 * @stepper-indicator-focus-calc-offset );
            bottom: calc( -1 * @stepper-indicator-focus-calc-offset );
            left: calc( -1 * @stepper-indicator-focus-calc-offset );
            z-index: 2;
        }
    }
    .k-step-focus,
    .k-step-link:focus {
        .k-step-indicator::after {
            display: block;
        }
    }


    // Step label
    .k-step-label {
        max-width: 10em;
        display: inline-flex;
        flex-wrap: wrap;
        align-items: center;
        justify-content: center;
        z-index: 1;
    }
    .k-step-label:only-child {
        border-radius: calc((@stepper-indicator-height + 2 * @stepper-indicator-border-width) / 2);
        padding: @stepper-label-padding-y @stepper-label-padding-x;
        border-width: 0;
    }
    .k-step-label .k-step-text {
        max-width: calc(10em - (@icon-size + @icon-spacing));
        flex-grow: 1;
        white-space: nowrap;
        text-overflow: ellipsis;
        overflow: hidden;
    }
    .k-step-label .k-icon { margin-left: @icon-spacing; }

    .k-step-current .k-step-label,
    .k-step-hover .k-step-label,
    .k-step:hover .k-step-label {
        font-weight: bold;
    }

    .k-step-label .k-step-label-optional {
        font-style: italic;
        flex-basis: 100%;
    }

    // Progressbar
    .k-progressbar {
        position: absolute;
        pointer-events: none;
        z-index: 0;
    }
}


// Horizontal
.k-step-list-horizontal {
    flex-direction: row;

    .k-step { flex: 1 0 auto; }

    .k-step-link { flex-direction: column; }

    // Label
    .k-step-label {
        text-align: center;
    }
    .k-step-indicator + .k-step-label {
        margin-top: if(@stepper-indicator-focus-offset > 0, calc(8px - @stepper-indicator-focus-offset), 8px);
    }

    // Progressbar
    & ~ .k-progressbar {
        width: 100%;
        height: @stepper-progressbar-size;
        top: calc((@stepper-indicator-height + 2 * @stepper-indicator-focus-size) / 2);
    }
}


// Vertical
.k-step-list-vertical {
    flex-direction: column;

    .k-step {
        min-height: calc((@stepper-indicator-width + 2 * @stepper-indicator-border-width + 2 * @stepper-indicator-focus-size) + 20px);
    }

    // Label
    .k-step-label {
        text-align: left;
    }
    .k-step-indicator + .k-step-label {
        margin-left: @stepper-label-margin-x;
    }


    // Progressbar
    & ~ .k-progressbar {
        width: @stepper-progressbar-size;
        height: 100%;
        min-height: 20px;
        left: calc((@stepper-indicator-width + 2 * @stepper-indicator-border-width + 2 * @stepper-indicator-focus-size) / 2);
    }

    // Inline content
    .k-step-content {
        height: 0;
        overflow: hidden;
        transition: @stepper-content-transition-property @stepper-content-transition-duration @stepper-content-transition-timing-function;
    }

    .k-step-current .k-step-content {
        height: auto;
        overflow: visible;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        margin-left: @stepper-indicator-width + 2 * @stepper-indicator-border-width;
        padding: @stepper-inline-content-padding-x @stepper-inline-content-padding-y;
    }
}

.k-rtl .k-stepper,
.k-stepper[dir="rtl"] {
    direction: rtl;

    .k-step-label .k-icon {
        margin-left: 0;
        margin-right: @icon-spacing;
    }

    // Horizontal
    .k-step-list-horizontal { }


    // Vertical
    .k-step-list-vertical {
        .k-step-indicator + .k-step-label {
            margin-left: 0;
            margin-right: @stepper-label-margin-x;
        }

        & ~ .k-progressbar {
            left: auto;
            right: calc((@stepper-indicator-width + 2 * @stepper-indicator-border-width + 2 * @stepper-indicator-focus-size) / 2);
        }
    }
}