/* =====================================================
   Column Picker Component
   Shared dropdown for toggling table column visibility.
   Used by: Projects list, Quotes, Clients, Venues, etc.
   ===================================================== */

.column-picker {
    position: relative;
    display: inline-block;
}

.column-picker-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
}

.column-picker-menu {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    z-index: 100;
    min-width: 180px;
    max-height: 360px;
    overflow-y: auto;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 6px 0;
    margin-top: 4px;
}

.column-picker-menu.active {
    display: flex;
    flex-direction: column;
}

.column-picker-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 6px 12px;
    cursor: pointer;
    font-size: 13px;
    color: var(--text-primary);
    transition: background var(--transition-fast);
    white-space: nowrap;
}

.column-picker-item:hover {
    background: var(--bg-secondary);
}

.column-picker-item span {
    flex: 1;
}

.column-picker-item input[type="checkbox"] {
    cursor: pointer;
    flex-shrink: 0;
    width: 14px;
    height: 14px;
}

.column-picker-divider {
    height: 1px;
    background: var(--border-primary);
    margin: 6px 0;
}