.ai-br-action-btn {
    border: 0;
    padding: 0;
    margin: 0;
    background: transparent;
    color: inherit;
    text-decoration: none;
    font: inherit;
    line-height: 1.25;
    white-space: nowrap;
    cursor: pointer;
}
.ai-br-action-btn:hover { color: var(--bs-primary); }
.ai-br-mark-form { margin: 0; white-space: nowrap; }
.ai-br-best-medal { vertical-align: middle; white-space: nowrap; }
.ai-br-best-medal .ti { vertical-align: -0.08em; }
.ai-br-reply-mark-form { font-size: 0.8em; }


.ai-br-group-panel {
    padding: 0.75rem;
    border: 1px solid var(--tblr-border-color, var(--bs-border-color));
    border-radius: 0.5rem;
    background: var(--tblr-bg-surface, var(--bs-light));
}
.ai-br-group-item {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    width: 100%;
    min-height: 42px;
    padding: 0.55rem 0.75rem;
    margin: 0;
    border: 1px solid var(--tblr-border-color, var(--bs-border-color));
    border-radius: 0.4rem;
    background: var(--tblr-bg-surface, var(--bs-body-bg));
    cursor: pointer;
    transition: border-color .15s ease, background-color .15s ease, box-shadow .15s ease;
}
.ai-br-group-item:hover {
    border-color: var(--bs-primary);
}
.ai-br-group-item:has(.ai-br-group-check:checked) {
    border-color: rgba(var(--bs-primary-rgb), .45);
    background: rgba(var(--bs-primary-rgb), .06);
}
.ai-br-group-item .form-check-input {
    flex: 0 0 auto;
    margin: 0;
}
.ai-br-group-name {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
@media (max-width: 575.98px) {
    .ai-br-group-panel { padding: 0.5rem; }
    .ai-br-group-item { min-height: 40px; }
}