/* Custom Version Selector Styles */
.custom-version-selector {
    position: relative;
    display: inline-block;
}

.version-toggle-btn {
    background: #eff6ff;
    /* Blue 50 */
    color: var(--primary-color);
    border: 1px solid #bfdbfe;
    /* Blue 200 */
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9em;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s;
}

.version-toggle-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.version-dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-color);
    width: 250px;
    z-index: 1000;
    overflow: hidden;
    animation: fadeIn 0.15s ease-out;

    /* LIMIT HEIGHT TO SHOW APPROX 12 ITEMS */
    /* Assuming ~36px per item item height + padding */
    max-height: 480px;
    overflow-y: auto;
}

.version-dropdown-menu.hidden {
    display: none;
}

.version-option {
    padding: 6px 16px;
    cursor: pointer;
    font-size: 0.9em;
    color: var(--text-primary);
    transition: background 0.15s;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.version-option:hover {
    background: #f1f5f9;
}

.version-option.selected {
    background: #eff6ff;
    color: var(--primary-color);
    font-weight: 600;
}

.version-option.active-selection-target {
    background: #dbeafe;
    /* Stronger highlight for multi-select target */
    font-weight: 700;
}

.parallel-toggle-section {
    border-top: 1px solid var(--border-color);
    padding: 8px 16px;
    background: #fafafa;
}

.parallel-instruction {
    font-size: 0.8em;
    color: var(--text-secondary);
    margin-bottom: 8px;
    text-align: center;
    font-style: italic;
}

.selection-badge {
    background: var(--primary-color);
    color: white;
    font-size: 0.7em;
    padding: 2px 6px;
    border-radius: 10px;
}