.tabs-header {
    margin: 0.5em 0 3px;
    background: var(--brand-bg);
}
.tabs-header > * {
    display: inline-block;
}
.tabs-btn {
    text-decoration: none;
    font-size: 18px;
    border: none;
    padding: 10px 25px;
    text-align: center;
    cursor: pointer;
    margin-bottom: -3px;
    border-bottom: 3px solid #eee;
}
.tabs-btn.active {
    color: var(--brand-text);
    border-bottom: 3px solid var(--bg-action);
}
.tabs-body-item {
    padding: 20px 0;
}

.indicator_bad {
    background: var(--text-bad);
}
.indicator_good {
    background: var(--text-good);
}
.indicator {
    display: inline-block;
    width: 1em;
    height: 1em;
    border: solid 1px var(--text-color2);
    border-radius: 0.5em;
}

.dangerous-button, .action-button {
    border: solid 1px var(--text-color2);
    border-radius: 0.5em;
    padding: 0.3em;
    margin: 0.2em;
}

.summary-actions {
    display: flex;
    flex-direction: row;
    align-items: stretch;
}
.summary-actions * {
    margin: 0;
}

.dangerous-button {
    background: var(--bg-danger);
}

.action-button {
    background: var(--bg-action);
}

.nav-bar-element {
    margin: 0.5em;
    border-bottom: 2px solid var(--text-color2);
}

.tabs-item-flex-container {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
}
.tabs-item-flex-container > * {
    flex: 1 1 auto
}

.tabs-item-flex-container > *, .settings-set-container {
    margin: 1em;
    border: 1px solid var(--text-color2);
    border-radius: 0.2em;
}

.settings-set-container {
    padding: 1em;
}

.settings-set-container th {
    text-align: left;
    padding-right: 1em;
}
.settings-set-container td {
    min-width: 10em;
}
.tabs-item-flex-container h2 {
    margin-top: 0;
}

.settings-set-container > h3 {
    margin: 0;
}

label * {
    display: block;
}

label {
    margin: 1em 0.5em;
    display: block;
    /*background: var(--bg-selected);*/
    color: var(--text-color2);
}
.settings-set-container input, .settings-set-container select {
    margin-top: 0.5em;
    border: none;
    border-bottom: solid 2px var(--text-color2);
    width: 20em;
    box-sizing: border-box;
}

.settings-set-container input:focus {
    outline: none;
    border: none;
    border-bottom: solid 2px var(--bg-action);
}

.settings-set-container input:invalid {
    border: solid 1px var(--text-bad);
}

/* костыль для браузеров, которые некорректно стилизуют элементы option */
select * {
    background: var(--bg-selected);
    color: var(--text-color);
}

.settings-set-container tr > * {
    border-bottom: solid 1px var(--text-color2);
}

.settings-set-container tr:hover {
    background: var(--bg-selected);
}

details > summary {
    display: flex;
    justify-content: space-between;
    align-items: stretch;
}

.submit-spinner {
    display: inline-block;
    width: 1em;
    height: 1em;
    border: 3px solid #f3f3f3; /* Цвет границы */
    border-radius: 50%; /* Делаем круг */
    border-top-color: #3498db; /* Цвет верхней границы */
    animation: spin 0.8s linear infinite; /* Анимация вращения */
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/*********************** Стили для красивых 'switch' ***********************/

.toggle-input {
    position: relative;
    margin: 5px 10px;
    width: 50px;
    height: 16px;
    background-color: var(--bg-element);
    border-radius: 16px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.toggle-input input[type="checkbox"] {
    display: none;
}

.toggle-input .slider {
    position: absolute;
    top: -4px;
    left: 0;
    width: 25px;
    height: 25px;
    background-color: var(--text-color);
    border-radius: 50%;
    transition: left 0.3s;
}

.toggle-input input[type="checkbox"]:checked + .slider {
    left: 25px;
    background-color: var(--bg-action);
}

.toggle-input input[type="checkbox"]:checked + .slider:before {
    left: 10px;
}