body {
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.card {
    border-radius: 0.5rem;
}

.login-page {
    background: linear-gradient(135deg, #e8f0fe 0%, #f8f9fa 50%, #e3f2fd 100%);
    min-height: 100vh;
}

.login-wrapper .card {
    border-radius: 0.75rem;
}

.modal-fullscreen-lg-down .modal-body,
.modal-fullscreen-sm-down .modal-body {
    overflow-y: auto;
}

#customer-form .address-block,
#product-form .row {
    max-width: 100%;
}

.table-responsive {
    -webkit-overflow-scrolling: touch;
}

@media (max-width: 576px) {
    .modal .form-label {
        margin-bottom: 0.25rem;
        font-size: 0.875rem;
    }

    #customers-table_wrapper .dataTables_length,
    #customers-table_wrapper .dataTables_filter {
        text-align: left;
        margin-bottom: 0.5rem;
    }
}

.billing-enter-hint kbd {
    background: #212529;
    color: #fff;
    padding: 0.15rem 0.4rem;
    border-radius: 0.25rem;
    font-size: 0.85em;
}

#billing-steps .nav-link {
    font-size: 0.875rem;
}

@media (max-width: 768px) {
    #billing-steps .nav-link {
        font-size: 0.75rem;
        padding: 0.35rem 0.5rem;
    }
}