html, body {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    margin: 0;
}

.worktree-banner {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    box-sizing: border-box;
    margin: 0;
    text-align: center;
    font-size: 12px;
    font-weight: 600;
    padding: 4px 8px;
    background: #ffc107;
    color: #212529;
    z-index: 10000;
    flex: 0 0 auto;
}

a, .btn-link {
    color: #006bb7;
}

.btn-primary {
    color: #fff;
    background-color: #1b6ec2;
    border-color: #1861ac;
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
    box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

.content {
    padding-top: 1.1rem;
}

h1:focus {
    outline: none;
}

.valid.modified:not([type=checkbox]) {
    outline: 1px solid #26b050;
}

.invalid {
    outline: 1px solid #e50000;
}

.validation-message {
    color: #e50000;
}

.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #b32121;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}

    .blazor-error-boundary::after {
        content: "An error has occurred."
    }

.darker-border-checkbox.form-check-input {
    border-color: #929292;
}

ul.menu {
    list-style-type: none;
}


.table-col-100 {
    width: 100px;
}

.table-col-200 {
    width: 200px;
}

.table-cell-clamp {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

table.table-compact-filters thead input[type=datetime-local],
table.table-compact-filters thead input[type=date] {
    font-size: 0.875rem;
    padding: 0.25rem 0.5rem;
}

.ql-editor {
    min-height: 200px;
}

.ql-toolbar, .ql-container {
    background-color: var(--app-surface);
    color: var(--bs-body-color);
}

.ql-toolbar {
    border-radius: 1rem 1rem 0 0;
}

.ql-container {
    border-radius: 0 0 1rem 1rem;
}

td.freeze-column-right ul.dropdown-menu-start {
    inset: 0px 16px auto auto !important;
}

table.table td {
    vertical-align: middle;
}

    table.table td input {
        text-align: center;
    }

th.menu {
    width: 125px;
}

:root {
    --bs-primary: #4f46e5;
    --bs-primary-rgb: 79, 70, 229;
    --bs-secondary: #64748b;
    --bs-success: #16a34a;
    --bs-danger: #dc2626;
    --bs-warning: #f59e0b;
    --bs-info: #0891b2;
    --bs-light: #f8fafc;
    --bs-dark: #0f172a;
    --app-surface: #ffffff;
    --app-surface-soft: #f8fafc;
    --app-border: #e2e8f0;
    --app-shadow: 0 10px 30px -12px rgba(15, 23, 42, 0.22);
    --app-shadow-soft: 0 8px 20px -14px rgba(15, 23, 42, 0.25);
    --app-link: #4338ca;
    --app-link-hover: #312e81;
    --bb-violet: #6366f1;
    --bb-violet-bg: #4f46e5;
    --bb-violet-bg-rgb: 79, 70, 229;
    --bb-sidebar2-top-row-background-color: #4f46e5;
    --bb-sidebar2-top-row-border-color: #4338ca;
    --bb-sidebar2-title-text-color: #ffffff;
    --bb-sidebar2-brand-icon-color: #ffffff;
    --bb-sidebar2-title-badge-text-color: #4f46e5;
    --bb-sidebar2-title-badge-background-color: #ffffff;
    --bb-sidebar2-navbar-toggler-icon-color: #4f46e5;
    --bb-sidebar2-navbar-toggler-background-color: #ffffff;
    --bb-sidebar2-nav-item-text-active-color-rgb: 79, 70, 229;
    --bb-sidebar2-width: 300px;
    --bb-sidebar2-collapsed-width: 4.5rem;
    --bs-border-radius: 1rem;
    --bs-border-radius-sm: 0.75rem;
    --bs-border-radius-lg: 1.35rem;
    --bs-border-radius-xl: 1.6rem;
    --app-radius: 1.25rem;
    --app-radius-sm: 0.9rem;
}

[data-bs-theme="dark"] {
    color-scheme: dark;
    --app-surface: #1e293b;
    --app-surface-soft: #0f172a;
    --app-border: #334155;
    --app-shadow: 0 10px 30px -12px rgba(0, 0, 0, 0.55);
    --app-shadow-soft: 0 8px 20px -14px rgba(0, 0, 0, 0.6);
    --app-link: #a5b4fc;
    --app-link-hover: #c7d2fe;
    --bb-sidebar2-background-color: #0f172a;
    --bb-sidebar2-top-row-background-color: #4f46e5;
    --bb-sidebar2-top-row-border-color: #4338ca;
    --bb-sidebar2-title-text-color: #ffffff;
    --bb-sidebar2-brand-icon-color: #ffffff;
    --bb-sidebar2-title-badge-text-color: #4f46e5;
    --bb-sidebar2-title-badge-background-color: #ffffff;
    --bb-sidebar2-navbar-toggler-icon-color: #e2e8f0;
    --bb-sidebar2-navbar-toggler-background-color: #1e293b;
    --bb-sidebar2-content-border-color: #334155;
    --bb-sidebar2-nav-item-text-color: #e2e8f0;
    --bb-sidebar2-nav-item-text-hover-color: #c7d2fe;
    --bb-sidebar2-nav-item-text-active-color: #c7d2fe;
    --bb-sidebar2-nav-item-background-hover-color: rgba(79, 70, 229, 0.28);
    --bb-sidebar2-nav-item-group-background-color: rgba(79, 70, 229, 0.18);
    --bb-table-selected-row-color: #e2e8f0;
    --bb-table-selected-row-background-color: rgba(79, 70, 229, 0.28);
    --bb-table-selected-row-hover-color: #e2e8f0;
    --bb-table-selected-row-hover-background-color: rgba(79, 70, 229, 0.35);
}

body {
    background: radial-gradient(circle at top left, #eef2ff 0%, #f8fafc 38%, #f1f5f9 100%);
    color: #0f172a;
}

html[data-bs-theme="dark"],
html[data-bs-theme="dark"] body,
html[data-bs-theme="dark"] .app-shell,
html[data-bs-theme="dark"] .bb-page,
html[data-bs-theme="dark"] main {
    background: radial-gradient(circle at top left, #1e1b4b 0%, #0f172a 42%, #020617 100%);
    color: var(--bs-body-color);
}

a, .btn-link {
    color: var(--app-link);
    text-decoration: none;
}

a:hover, .btn-link:hover {
    color: var(--app-link-hover);
}

.btn {
    border-radius: 1rem;
    font-weight: 600;
    transition: all 0.2s ease;
}

.btn-primary {
    color: #fff;
    background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
    border: none;
    box-shadow: 0 8px 18px -10px rgba(79, 70, 229, 0.8);
}

.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active {
    background: linear-gradient(135deg, #4f46e5 0%, #4338ca 100%);
    transform: translateY(-1px);
}

.btn-outline-primary {
    border-color: #6366f1;
    color: #4f46e5;
}

.btn-outline-primary:hover {
    background-color: #4f46e5;
    border-color: #4f46e5;
}

.card,
.modal-content,
.dropdown-menu,
.accordion-item,
.alert {
    border: 1px solid var(--app-border);
    border-radius: var(--app-radius);
    box-shadow: var(--app-shadow-soft);
}

.dropdown-menu {
    padding: 0.4rem;
}

.dropdown-item {
    border-radius: var(--app-radius-sm);
}

.dropdown-item:hover,
.dropdown-item:focus,
.dropdown-item:active,
.dropdown-item.active {
    border-radius: var(--app-radius-sm);
}

.card,
.modal-content {
    background-color: var(--app-surface);
}

.table {
    --bs-table-bg: transparent;
    border-color: var(--app-border);
}

.table > :not(caption) > * > * {
    border-bottom-color: var(--app-border);
}

.table thead th {
    color: var(--bs-body-color);
    font-weight: 700;
    background-color: var(--app-surface-soft);
}

.form-control,
.form-select {
    border-radius: 1rem;
    border-color: var(--app-border);
    background-color: var(--app-surface);
    color: var(--bs-body-color);
}

.form-control:focus,
.form-select:focus {
    border-color: #818cf8;
    box-shadow: 0 0 0 0.2rem rgba(99, 102, 241, 0.2);
}

.navbar,
.offcanvas,
.list-group-item,
.accordion-item {
    border-color: var(--app-border);
}

.navbar {
    background: color-mix(in srgb, var(--app-surface) 82%, transparent);
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 20px -16px rgba(15, 23, 42, 0.4);
}

.pagination .page-link {
    border-radius: 999px;
    margin: 0 0.15rem;
    border-color: var(--app-border);
    color: var(--bs-body-color);
    background-color: var(--app-surface);
}

.pagination .page-item.active .page-link {
    background-color: #4f46e5;
    border-color: #4f46e5;
}

.content {
    padding-top: 1.1rem;
}

.bb-top-row {
    color: var(--bs-body-color);
    border-radius: 1.35rem 1.35rem 0 0;
    background-color: transparent;
    border-bottom-color: var(--app-border);
}

@media (max-width: 640px) {
    .bb-top-row [aria-label="Menu"],
    .bb-top-row .bi-list,
    .bb-top-row .sidebar-toggle {
        display: none !important;
    }

    .bb-top-row {
        justify-content: flex-end;
    }
}

.badge,
.navbar-brand-badge {
    border-radius: 999px;
}

.table-responsive {
    border-radius: var(--app-radius);
    overflow: auto;
}

.bb-page {
    gap: 0.85rem;
    padding: 0.85rem;
    box-sizing: border-box;
}

.app-sidebar {
    border-radius: 1.35rem;
    overflow: hidden;
    box-shadow: var(--app-shadow-soft);
    background-color: var(--bb-sidebar2-background-color);
}

.bb-page > .app-sidebar > .bb-sidebar2 {
    border: 0;
    border-radius: 0;
    box-shadow: none;
    background-color: transparent;
    overflow: hidden;
}

.bb-sidebar2-top-row {
    flex-shrink: 0;
}

.bb-page > .app-sidebar .bb-sidebar2-top-row {
    border-right: 0;
    border-radius: 0;
}

.bb-sidebar2 nav .nav-item a,
.bb-sidebar2 nav .nav-item .nav-link,
.bb-sidebar2 nav .nav-item button {
    border-radius: 0.9rem;
    margin: 0.12rem 0.5rem;
}

.bb-sidebar2.collapsed nav .nav-item a,
.bb-sidebar2.collapsed nav .nav-item .nav-link,
.bb-sidebar2.collapsed nav .nav-item button {
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    margin: 0.18rem 0.35rem;
    padding: 0.55rem 0 !important;
    text-align: center;
}

.bb-sidebar2.collapsed nav .nav-item .nav-link-icon,
.bb-sidebar2.collapsed nav .nav-item .nav-link-icon i {
    margin: 0;
    padding: 0;
    line-height: 1;
}

.bb-sidebar2 .nav-item-group > .nav-link {
    display: flex;
    align-items: center;
}

.bb-sidebar2:not(.collapsed) nav .nav-item > .nav-link {
    display: flex;
    align-items: center;
    flex-wrap: nowrap;
}

.bb-sidebar2:not(.collapsed) nav .nav-item > .nav-link .nav-link-icon {
    flex-shrink: 0;
    padding-top: 0;
    padding-bottom: 0;
}

.bb-sidebar2:not(.collapsed) nav .nav-item > .nav-link .nav-link-text {
    min-width: 0;
    text-overflow: ellipsis;
}

.bb-sidebar2:not(.collapsed) nav .nav-item-level-2 > .nav-link {
    padding-left: 2.5rem !important;
    padding-right: 0.5rem;
    font-size: 0.92rem;
}

.bb-sidebar2:not(.collapsed) nav .nav-item-level-2 > .nav-link .nav-link-icon {
    padding-left: 0 !important;
}

.bb-sidebar2:not(.collapsed) .nav-item-group > .nav-link .nav-link-icon {
    order: 1;
}

.bb-sidebar2:not(.collapsed) .nav-item-group > .nav-link .nav-link-text {
    order: 2;
    flex: 1 1 auto;
}

.bb-sidebar2:not(.collapsed) .nav-item-group > .nav-link .nav-link-arrow {
    display: inline-flex !important;
    order: 3;
    margin-left: auto;
    font-size: 1.15rem;
    line-height: 1;
    opacity: 0.72;
}

.bb-sidebar2 .nav-item-group > .nav-link .nav-link-arrow .bi {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    overflow: visible;
    font-size: 1.05rem !important;
    width: 1em;
    height: 1em;
}

.bb-sidebar2 .nav-item-group > .nav-link .nav-link-arrow .bi::before {
    font-family: Arial, sans-serif !important;
    font-size: 1.05rem !important;
    line-height: 1 !important;
}

.bb-sidebar2 .nav-item-group:not(.active) > .nav-link .nav-link-arrow .bi::before {
    content: "▾" !important;
}

.bb-sidebar2 .nav-item-group.active > .nav-link .nav-link-arrow .bi::before {
    content: "▴" !important;
}

.bb-sidebar2.collapsed .nav-item-group > .nav-link {
    position: relative;
    flex-direction: column;
    justify-content: center !important;
    align-items: center !important;
    gap: 0.4rem;
    padding: 0.4rem 0 0.28rem !important;
}

.bb-sidebar2.collapsed .nav-item-group > .nav-link .nav-link-icon {
    order: 1;
    margin: 0 !important;
}

.bb-sidebar2.collapsed .nav-item-group > .nav-link .nav-link-text {
    display: none !important;
}

.bb-sidebar2.collapsed .nav-item-group > .nav-link .nav-link-arrow {
    display: inline-flex !important;
    position: static !important;
    left: auto !important;
    right: auto !important;
    bottom: auto !important;
    top: auto !important;
    order: 2;
    margin: 0 !important;
    transform: none;
    font-size: 0.85rem;
    line-height: 1;
    opacity: 0.85;
    pointer-events: none;
}

.bb-sidebar2.collapsed .nav-item-group > .nav-link .nav-link-arrow .bi,
.bb-sidebar2.collapsed .nav-item-group > .nav-link .nav-link-arrow .bi::before {
    font-size: 0.8rem !important;
    width: 1em;
    height: 1em;
    line-height: 1 !important;
}

.bb-sidebar2 .nav-link-text,
.bb-sidebar2 .bb-sidebar2-title,
.bb-sidebar2 .navbar-brand-badge,
.bb-sidebar2 .expanded-only:not(.nav-link-arrow):not(.nav-link-icon) {
    overflow: hidden;
    white-space: nowrap;
    max-width: 16rem;
    opacity: 1;
    transition: opacity 0.18s ease 0.1s, max-width 0.32s cubic-bezier(0.4, 0, 0.2, 1);
}

.bb-sidebar2.collapsed .nav-link-text {
    display: none !important;
}

.bb-sidebar2.collapsed .bb-sidebar2-title,
.bb-sidebar2.collapsed .navbar-brand-badge,
.bb-sidebar2.collapsed .expanded-only:not(.nav-link-arrow):not(.nav-link-icon):not(.nav-link-text) {
    display: inline-block !important;
    opacity: 0;
    max-width: 0;
    margin: 0;
    padding: 0;
    pointer-events: none;
    transition: opacity 0.12s ease, max-width 0.32s cubic-bezier(0.4, 0, 0.2, 1);
}

.bb-sidebar2.collapsed .nav-link-icon {
    padding-top: 0;
    padding-bottom: 0;
    margin: 0;
}

.bb-sidebar2.collapsed .bb-sidebar2-top-row,
.bb-sidebar2.collapsed .navbar-brand {
    justify-content: center;
    padding-left: 0;
    padding-right: 0;
    margin: 0;
}

.app-sidebar-footer {
    flex-shrink: 0;
    padding: 0.45rem 1rem;
    font-size: 0.7rem;
    line-height: 1.2;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--bs-secondary-color);
    opacity: 0.7;
    background-color: transparent;
    border-top: 1px solid color-mix(in srgb, var(--bb-sidebar2-content-border-color) 60%, transparent);
}

.app-sidebar:has(.bb-sidebar2.collapsed) .app-sidebar-footer,
html[data-sidebar-collapsed="true"] .app-sidebar-footer {
    display: none;
}

@media (max-width: 640px) {
    .app-sidebar-footer {
        display: none;
    }
}

main {
    border-radius: 1.35rem;
    background-color: color-mix(in srgb, var(--app-surface) 86%, transparent);
    box-shadow: var(--app-shadow-soft);
}

@media (min-width: 641px) {
    .bb-page {
        overflow: hidden;
        min-width: 0;
    }

    html,
    body,
    .app-shell {
        height: 100vh;
        overflow: hidden;
    }

    .bb-page .bb-sidebar2 {
        display: flex;
        flex-direction: column;
        align-self: stretch;
        height: auto;
        max-height: 100%;
        position: relative;
        top: auto;
        overflow: hidden;
        flex: 0 0 auto;
        width: var(--bb-sidebar2-width);
        min-width: var(--bb-sidebar2-width);
        max-width: var(--bb-sidebar2-width);
        transition: width 0.32s cubic-bezier(0.4, 0, 0.2, 1),
                    min-width 0.32s cubic-bezier(0.4, 0, 0.2, 1),
                    max-width 0.32s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .bb-page > .app-sidebar {
        display: flex;
        flex-direction: column;
        align-self: stretch;
        flex: 0 0 auto;
        min-height: 0;
        max-height: 100%;
    }

    .bb-page > .app-sidebar > .bb-sidebar2 {
        flex: 1 1 auto;
        min-height: 0;
        max-height: none;
    }

    .bb-page .bb-sidebar2.collapsed {
        width: var(--bb-sidebar2-collapsed-width);
        min-width: var(--bb-sidebar2-collapsed-width);
        max-width: var(--bb-sidebar2-collapsed-width);
    }

    html[data-sidebar-collapsed="true"] .bb-page .bb-sidebar2:not(.collapsed) {
        width: var(--bb-sidebar2-collapsed-width);
        min-width: var(--bb-sidebar2-collapsed-width);
        max-width: var(--bb-sidebar2-collapsed-width);
        transition: none;
    }

    .bb-page .bb-sidebar2 .nav-scrollable {
        height: auto;
        max-height: none;
        flex: 1 1 auto;
        min-height: 0;
        overflow-y: auto;
    }

    .bb-page > main {
        display: flex;
        flex-direction: column;
        align-self: stretch;
        min-width: 0;
        min-height: 0;
        height: auto;
        max-height: 100%;
        overflow: hidden;
        flex: 1 1 auto;
    }

    .bb-page > main > .bb-top-row {
        flex-shrink: 0;
    }

    .bb-page > main > article {
        flex: 1 1 auto;
        min-width: 0;
        min-height: 0;
        overflow: auto;
    }
}

@media (prefers-reduced-motion: reduce) {
    .bb-page .bb-sidebar2,
    .bb-sidebar2 .nav-link-text,
    .bb-sidebar2 .bb-sidebar2-title,
    .bb-sidebar2 .navbar-brand-badge,
    .bb-sidebar2 .expanded-only {
        transition: none !important;
    }
}

.live-lesson-page {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex: 1 1 auto;
    min-height: 0;
    height: 100%;
    overflow: hidden;
}

.bb-page > main > article.content:has(.live-lesson-page) {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

.live-lesson-alert {
    flex: 0 0 auto;
    margin: 0 !important;
}

.live-lesson-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.65rem 0.85rem;
    flex: 0 0 auto;
    padding: 0.7rem 0.9rem;
    border-radius: var(--app-radius);
    border: 1px solid var(--bs-primary);
    background-color: var(--bs-primary);
    color: #fff;
    box-shadow: var(--app-shadow-soft);
}

.live-lesson-toolbar__back {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.45rem 0.85rem;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.35);
    color: #fff !important;
    text-decoration: none !important;
    font-weight: 600;
    font-size: 0.9rem;
    background-color: rgba(255, 255, 255, 0.12);
}

.live-lesson-toolbar__back:hover {
    background-color: rgba(255, 255, 255, 0.22);
    border-color: #fff;
    color: #fff !important;
}

.live-lesson-toolbar__status {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    min-width: 9rem;
    padding: 0.4rem 0.8rem;
    border-radius: 999px;
    font-weight: 700;
    font-size: 0.85rem;
    letter-spacing: 0.02em;
    border: 1px solid transparent;
}

.live-lesson-toolbar__status[data-state="closed"] {
    background-color: rgba(255, 255, 255, 0.16);
    border-color: rgba(255, 255, 255, 0.28);
    color: #fff;
}

.live-lesson-toolbar__status[data-state="prep"] {
    background-color: var(--bs-warning);
    border-color: var(--bs-warning);
    color: #111827;
}

.live-lesson-toolbar__status[data-state="live"] {
    background-color: var(--bs-danger);
    border-color: var(--bs-danger);
    color: #fff;
}

.live-lesson-toolbar__status-dot {
    width: 0.55rem;
    height: 0.55rem;
    border-radius: 50%;
    background: currentColor;
    box-shadow: 0 0 0 0 currentColor;
}

.live-lesson-toolbar__status[data-state="live"] .live-lesson-toolbar__status-dot {
    animation: live-lesson-pulse 1.4s ease-out infinite;
}

@keyframes live-lesson-pulse {
    0% { box-shadow: 0 0 0 0 rgba(220, 38, 38, 0.55); }
    70% { box-shadow: 0 0 0 8px rgba(220, 38, 38, 0); }
    100% { box-shadow: 0 0 0 0 rgba(220, 38, 38, 0); }
}

.live-lesson-toolbar__actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.65rem;
    margin-left: auto;
}

.live-lesson-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    min-height: 2.85rem;
    padding: 0.65rem 1.15rem;
    border-radius: var(--app-radius-sm);
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.1;
}

.live-lesson-btn:disabled {
    opacity: 0.75;
    cursor: wait;
}

.live-lesson-btn__icon {
    font-size: 1.2rem;
    line-height: 1;
}

.live-lesson-btn--primary {
    min-width: 12rem;
}

.live-lesson-btn--danger {
    min-width: 12.5rem;
}

.live-lesson-btn--ghost {
    min-width: 7rem;
}

.live-lesson-btn.is-hidden,
.live-lesson-toolbar__status.is-hidden {
    display: none !important;
}

.live-lesson-frame {
    flex: 1 1 auto;
    min-height: 0;
    height: auto;
    border-radius: var(--app-radius);
    border: 1px solid var(--app-border);
    overflow: hidden;
    background-color: var(--app-surface-soft);
    box-shadow: var(--app-shadow-soft);
}

.live-lesson-frame > iframe {
    width: 100% !important;
    height: 100% !important;
}

@media (max-width: 768px) {
    .live-lesson-toolbar__actions {
        width: 100%;
        margin-left: 0;
    }

    .live-lesson-btn,
    .live-lesson-btn--primary,
    .live-lesson-btn--danger {
        flex: 1 1 auto;
        min-width: 0;
    }
}

@media (prefers-reduced-motion: reduce) {
    .live-lesson-btn,
    .live-lesson-toolbar__status-dot {
        transition: none !important;
        animation: none !important;
    }
}