body {
    background-color: #f8f9fa;
}

#sidebar {
    min-height: 100vh;
    box-shadow: inset -1px 0 0 rgba(0, 0, 0, .1);
}

.nav-link {
    font-weight: 500;
    color: #333;
}

.nav-link.active {
    color: #007bff;
}

main {
    padding-top: 20px;
}

.pos-product-card {
    cursor: pointer;
    transition: transform 0.2s;
}

.pos-product-card:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.table-responsive {
    max-height: 400px;
}

.receipt-header {
    text-align: center;
    border-bottom: 1px dashed #000;
    padding-bottom: 10px;
    margin-bottom: 10px;
}

.receipt-footer {
    text-align: center;
    border-top: 1px dashed #000;
    padding-top: 10px;
    margin-top: 10px;
}