.table thead th {
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
    color: #6c757d;
    border-bottom: 1px solid #edf2f7;
}

.table tbody tr {
    transition: all 0.2s ease;
}

.table tbody tr:hover {
    background-color: #f8fbff !important;
}

.mac-address {
    font-family: 'Courier New', Courier, monospace;
    font-weight: 600;
    color: #4a5568;
    background: #f1f5f9;
    padding: 2px 6px;
    border-radius: 4px;
}

.img-thumbnail {
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    object-fit: cover;
}

.btn-pdf {
    border-radius: 20px;
    padding: 4px 12px;
    font-size: 0.85rem;
}

.sort-indicator {
    margin-left: 5px;
    font-size: 0.8em;
}

.sortable {
    cursor: pointer;
}