body {
    padding-top: 56px;
}

.table-responsive {
    overflow-x: auto;
}

#scanner {
    width: 100%;
    max-width: 500px;
    height: auto;
    margin: 0 auto;
    display: block;
    border: 2px solid #007bff;
    border-radius: 5px;
}

#scanResult {
    margin-top: 20px;
}

.badge-present {
    background-color: #28a745;
}

.badge-duplicate {
    background-color: #ffc107;
    color: #212529;
}

.badge-absent {
    background-color: #6c757d;
}

.card {
    margin-bottom: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.navbar {
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.btn-primary {
    background-color: #007bff;
    border-color: #007bff;
}

.btn-success {
    background-color: #28a745;
    border-color: #28a745;
}

.btn-info {
    background-color: #17a2b8;
    border-color: #17a2b8;
}

.btn-danger {
    background-color: #dc3545;
    border-color: #dc3545;
}