/*
 * KIELER - Kiel Integrated Environment for Layout Eclipse RichClient
 *
 * http://rtsys.informatik.uni-kiel.de/kieler
 *
 * Copyright 2021 by
 * + Kiel University
 *   + Department of Computer Science
 *     + Real-Time and Embedded Systems Group
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * SPDX-License-Identifier: EPL-2.0
 */

.options__section {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 12px;
}

.options__section:last-of-type {
    margin-bottom: 0;
}

.options__heading {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.5;
}

/*********************************** BUTTON ***********************************/

.options__button-group {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    padding: 0 4px;
}

.options__icon-button {
    --background: transparent;
    box-sizing: border-box;
    appearance: none;
    border: none;
    border-radius: var(--kdc-border-radius-default);
    padding: 4px;

    color: var(--kdc-color-sidebar-icon-primary);
    background: var(--background);
    transition: background var(--kdc-transition);
    cursor: pointer;
}

.options__icon-button:hover {
    --background: var(--kdc-color-sidebar-hover-background);
}

.options__button {
    box-sizing: border-box;
    appearance: none;
    border: none;
    border-radius: var(--kdc-border-radius-default);
    padding: 4px 8px;

    font-size: 0.8rem;
    font-weight: 400;

    box-shadow: none;
    color: var(--kdc-color-sidebar-font-primary);
    background: var(--kdc-color-sidebar-trigger-background-active);
    transition: box-shadow var(--kdc-transition);
    cursor: pointer;
}

.options__button:hover {
    box-shadow: var(--kdc-sidebar-button-shadow);
}

/*********************************** INPUTS ***********************************/

/* Group that renders children in a column */
.options__column {
    display: flex;
    flex-direction: column;
}

/* Group that renders children in a column and indents the children */
.options__input-container {
    display: flex;
    flex-direction: column;
}

/* Indent content except the legend inside an input group */
.options__input-container > :not(legend) {
    margin-left: 12px;
}

.options__separator {
    display: block;
    font-weight: 700;
}

.options__category {
    display: flex;
    flex-direction: column;
    /* This should also have a gap just like .options__section. However, it
    appears like the gap is not applied for details. Therefore, we use margin on the children. */
}

.options__category > summary {
    font-weight: 700;
    margin-bottom: 4px;
}

.options__category > :not(summary) {
    margin: 0 0 4px 12px;
}

.options__input {
    margin: 0 4px 0 0;
    vertical-align: baseline;
}

.options__text-field {
    padding: 2px 4px;
    font-size: 1rem;

    border: 2px solid var(--kdc-color-sidebar-trigger-background-hover);
    border-radius: var(--kdc-border-radius-default);
    background: var(--kdc-color-sidebar-trigger-background-active);
    color: var(--kdc-color-sidebar-font-primary);
}

.options__text-field:focus,
.options__text-field:focus-visible {
    /* 
    Text Field should use their border as their focus indicator. Without "!important"
    the rule for all inputs ".options__input:focus-visible" takes precedence when the
    styles are applied.
    */
    outline: none !important;
    border-color: var(--kdc-color-primary);
}

/* Don't show outlines when a user interacts with different options... */
.options__input,
.options__category > summary,
.options__button,
.options__icon-button {
    outline: none;
}

/* ...only show an outline if the user interacts with the options using a keyboard */
.options__input:focus-visible,
.options__category > summary:focus-visible,
.options__button:focus-visible,
.options__icon-button:focus-visible {
    /* Chromium has this thing where an outline is colored and white. This just colors it. */
    --outline-size: 2px;
    outline: var(--outline-size) solid var(--kdc-color-primary);
    outline-offset: calc(-1 * var(--outline-size));
}

.options__selection {
    padding: 2px 4px;

    border: 2px solid var(--kdc-color-sidebar-trigger-background-hover);
    border-radius: var(--kdc-border-radius-default);
    background: var(--kdc-color-sidebar-trigger-background-active);
    color: var(--kdc-color-sidebar-font-primary);
    cursor: pointer;
    font-size: 0.8rem;
}

.options__selection:focus {
    outline: none;
    border-color: var(--kdc-color-primary);
}

.options__hidden {
    display: none;
}