html, body {
    font-family: Arial, sans-serif;
}

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

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
    box-shadow: 0 0 0 0.2rem var(--focus-ring, rgba(0, 120, 212, 0.25));
}

.content {
    padding-top: 1.1rem;
    position: relative;
}

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;
}

/* ── Tab strip ──────────────────────────────────────────────────────────── */
.tab-strip {
    display: flex;
    align-items: stretch;
    background: var(--bs-tertiary-bg);
    border-bottom: 1px solid var(--bs-border-color);
    min-height: 38px;
}

.tab-scroll-area {
    display: flex;
    flex: 1 1 0%;
    overflow: hidden;
    min-width: 0;
}

.tab-item {
    display: inline-flex;
    align-items: center;
    padding: 0 10px;
    cursor: pointer;
    border-right: 1px solid var(--bs-border-color);
    font-size: 0.85rem;
    color: var(--bs-body-color);
    user-select: none;
    white-space: nowrap;
    flex-shrink: 0;
    transition: background 0.15s;
}

.tab-item:hover { background: var(--bs-secondary-bg); }

.tab-item.active-tab {
    background: var(--bs-body-bg);
    border-top: 2px solid var(--bs-primary);
    font-weight: 600;
}

.tab-btn {
    background: none;
    border: none;
    padding: 0 2px;
    line-height: 1;
    opacity: 0.5;
    cursor: pointer;
    font-size: 0.75rem;
    color: var(--bs-body-color);
}

.tab-btn:hover { opacity: 1; }

.tab-btn--close:hover { color: #dc3545; opacity: 1; }

.tab-overflow-trigger {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    flex-shrink: 0;
    cursor: pointer;
    background: var(--bs-tertiary-bg);
    font-size: 1.2rem;
    color: var(--bs-secondary-color);
    border: none;
    border-left: 1px solid var(--bs-border-color);
}

.tab-overflow-trigger:hover { background: var(--bs-secondary-bg); }

.tab-overflow-menu {
    position: absolute;
    top: 100%;
    right: 0;
    min-width: 220px;
    max-height: 320px;
    overflow-y: auto;
    background: var(--bs-body-bg);
    border: 1px solid var(--bs-border-color);
    border-radius: 4px;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.12);
    z-index: 1055;
}

.overflow-menu-item {
    display: flex;
    align-items: center;
    padding: 7px 14px;
    cursor: pointer;
    font-size: 0.84rem;
    white-space: nowrap;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
    color: var(--bs-body-color);
}

.overflow-menu-item:hover { background: var(--bs-secondary-bg); }
.overflow-menu-item.active-item { background: rgba(var(--bs-primary-rgb), 0.12); font-weight: 600; }

.tab-refresh-btn {
    display: inline-flex;
    align-items: center;
    margin: auto 8px;
    padding: 3px 10px;
    font-size: 0.78rem;
    border-radius: 4px;
    border: 1px solid var(--bs-border-color);
    background: var(--bs-body-bg);
    color: var(--bs-secondary-color);
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.15s, color 0.15s;
}

.tab-refresh-btn:hover {
    background: var(--bs-warning-bg-subtle);
    color: var(--bs-warning-text-emphasis);
    border-color: var(--bs-warning-border-subtle);
}

/* ── Page skeleton shimmer atom ─────────────────────────────────────────── */
/* Single reusable class — size every bone with inline style width/height.   */
.sk {
    display: block;
    background: linear-gradient(
        90deg,
        var(--bs-secondary-bg) 25%,
        var(--bs-tertiary-bg)  50%,
        var(--bs-secondary-bg) 75%
    );
    background-size: 400% 100%;
    animation: tab-shimmer 1.4s ease infinite;
    border-radius: 4px;
}

/* ── Tab skeleton / shimmer ─────────────────────────────────────────────── */
.tab-skeleton-strip {
    display: flex;
    align-items: center;
    background: var(--bs-tertiary-bg);
    border-bottom: 1px solid var(--bs-border-color);
    min-height: 38px;
    padding: 0 6px;
    gap: 6px;
    overflow: hidden;
}

.tab-skeleton-item {
    height: 22px;
    border-radius: 4px;
    background: linear-gradient(
        90deg,
        var(--bs-secondary-bg) 25%,
        var(--bs-tertiary-bg) 50%,
        var(--bs-secondary-bg) 75%
    );
    background-size: 400% 100%;
    animation: tab-shimmer 1.4s ease infinite;
    flex-shrink: 0;
}

@keyframes tab-shimmer {
    0%   { background-position: 100% 50%; }
    100% { background-position:   0% 50%; }
}

/* ── Page-specific shimmer overlay ──────────────────────────────────────── */
/* Rendered by MainLayout when ShimmerService.PendingComponentKey is set.   */
/* Shows the target page's own shimmer instantly on tab click, covering the  */
/* stale content during the SignalR round-trip. Removed when the new page    */
/* calls ShimmerService.Stop() in OnAfterRenderAsync(firstRender).           */
.page-shimmer-overlay {
    position: absolute;
    inset: 0;
    z-index: 500;
    background: var(--bs-body-bg);
    padding: 1.1rem 1.5rem 0;
    pointer-events: none;
}