body {
    background-color: #f8f9fa;
    color: #212529;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.navbar {
    background-color: #000;
}

.page-header {
    background-color: #000;
    color: #fff;
    padding: 2rem 0;
    margin-bottom: 2rem;
}

.table {
    border: 1px solid #dee2e6;
}

.table-dark {
    --bs-table-bg: #000;
}

.table-hover tbody tr:hover {
    background-color: #f1f1f1;
}

.loader-container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100px;
}

.loader {
    border: 5px solid #f3f3f3;
    border-top: 5px solid #000;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 2s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.item-image {
    max-width: 100px;
    max-height: 100px;
    cursor: pointer;
}

.modal-image {
    max-width: 100%;
}

.search-container {
    margin-bottom: 20px;
}

.pagination {
    justify-content: center;
    margin-top: 20px;
}

.pagination .page-link {
    color: #000;
    background-color: #fff;
    border-color: #000;
}

.pagination .page-item.active .page-link {
    background-color: #000;
    border-color: #000;
    color: #fff;
}

.correction-checkbox:checked {
    background-color: #000;
    border-color: #000;
}

.form-check-input:focus {
    border-color: #000;
    box-shadow: 0 0 0 0.25rem rgba(0, 0, 0, 0.25);
}