:root {
    --collapsible-border-radius: 10px;
    --collapsible-padding: 0.5rem;
}

.config-wrapper {
    padding: 2rem;
    min-height: 100%;
    display: flex;
    flex-flow: column nowrap;
}

header.title {
    margin-bottom: 0.5rem;
}

h2:not(:first-of-type) {
    margin-top: 1rem;
}

input[type='checkbox'] {
    width: 1.25rem;
    height: 1.25rem;
}

input[type='text'] {
    padding: 0.5rem;
    font-size: 0.7em;
}

input[type='number'] {
    padding: 0.5rem;
    font-size: 0.7em;
    -webkit-appearance: textfield;
    -moz-appearance: textfield;
    appearance: textfield;
    border: solid #aaaaaa;
    border-width: 0 1px;
    max-width: 3rem;
    text-align: center;
}

input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button {
    -webkit-appearance: none;
}

.hint {
    font-style: italic;
    font-size: 0.75em;
    color: #aaaaaa;
}
/* https://stackoverflow.com/a/66335752 */

.number-input {
    border: 1px solid #aaa;
    display: inline-flex;
}

.number-input button {
    outline: none;
    background-color: var(--primary-button-background-color);
    border: none;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    cursor: pointer;
    margin: 0;
    position: relative;
    transition: background-color 0.2s ease-out;
}

.number-input button:hover {
    background-color: var(--primary-button-highlight-background-color);
}

.number-input button:after {
    display: inline-block;
    position: absolute;
    content: '−';
    transform: translate(-50%, -50%) scale(1.75);
}

.number-input button.plus:after {
    content: '+';
}

.checkbox-container {
    display: flex;
    flex-flow: row nowrap;
    align-items: center;
    gap: 0.25rem;
    margin: 0.25rem;
}

.enter-match-id-inputs {
    display: flex;
    flex-flow: row wrap;
    gap: 0.5rem;
    align-items: center;
}

.primary-text-input {
    width: 27rem;
}

.enter-match-id-buttons {
    display: flex;
    flex-flow: row wrap;
    gap: 0.5rem;
}

.enter-match-id-result {
    font-size: 0.8em;
}

.enter-match-id-result.success {
    color: green;
}

.enter-match-id-result.error {
    color: darkred;
}

.stacked-config-sections {
    display: flex;
    flex-flow: row wrap;
    column-gap: 2rem;
    row-gap: 0.5rem;
    align-items: flex-start;
    margin-bottom: 0.5rem;
    margin-top: 0.25rem;
}

.config-section {
    display: flex;
    flex-flow: column nowrap;
    padding: var(--collapsible-padding);
}

.config-section.collapsible {
    padding: 0;
}

.config-section.collapsible h2 {
    position: relative;
    background-color: #666666;
    cursor: pointer;
    padding: var(--collapsible-padding);
    border-radius: var(--collapsible-border-radius);
    color: var(--secondary-text-color);
    user-select: none;
    -webkit-user-select: none; /* Safari */
    transition: border-radius 0.2s ease-out;
}

.config-section.collapsible.active h2 {
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
}

.config-section.collapsible h2:after {
    content: '+';
    /* font-size: 0.75em; */
    color: #ffffff;
    position: absolute;
    top: 0;
    right: 0.5rem;
    height: 100%;
    display: flex;
    flex-flow: row nowrap;
    align-items: center;
    justify-content: center;
    margin-left: 0.5rem;
}

.config-section.collapsible.active h2:after {
    content: "−";
}

.collapsible-content {
    padding: var(--collapsible-padding);
}

.config-column {
    display: flex;
    flex-flow: column wrap;
    gap: 0.5rem;
    flex: 1;
}

.config-column h3 {
    margin-top: 0.5rem;
}

.collapsible-content-wrapper {
    background-color: #f1f1f1;
    overflow: hidden;
    max-height: 0;
    transition: max-height 0.2s ease-out;
    border-bottom-left-radius: var(--collapsible-border-radius);
    border-bottom-right-radius: var(--collapsible-border-radius);
}

.config-input-row {
    display: flex;
    flex-flow: row wrap;
    gap: 0.5rem;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.config-input-row input[type="checkbox"] {
    width: 7rem;
}

.stacked-config-column {
    display: flex;
    flex-flow: row wrap;
    column-gap: 1rem;
    row-gap: 0.5rem;
    justify-content: space-between;
}

.config-column {
    display: flex;
    flex-flow: column wrap;
}

.override-buttons {
    display: flex;
    flex-flow: row wrap;
    column-gap: 1rem;
    row-gap: 0.5rem;
    justify-content: center;
    border-top: 2px solid #666666;
    padding-top: 0.5rem;
}

.override-buttons .button {
    font-weight: bold;
    border-color: #aaaaaa;
}