body {
    background: #f5f7fa;
}

.card {
    border: none;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.card-header {
    background: #fff;
    font-weight: 600;
}

.sortable {
    cursor: pointer;
    user-select: none;
}

.sortable:hover {
    background: #f0f0f0;
}

.table th {
    font-size: 0.85rem;
    white-space: nowrap;
}

.table td {
    font-size: 0.85rem;
    vertical-align: middle;
}

.input-group-text {
    min-width: 90px;
    font-size: 0.85rem;
}