body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 20px;
    background-color: #f4f4f9;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
}

.form-group input, .form-group select {
    width: 50%;
    padding: 8px;
    box-sizing: border-box;
}

.table {
    width: 80%;
    border-collapse: collapse;
    margin-top: 20px;
}

.table th, .table td {
    border: 1px solid #ddd;
    padding: 8px;
    text-align: left;
}

.table th {
    background-color: #f2f2f2;
}

.modal-body {
    padding: 20px;
}

.btn {
    padding: 10px 20px;
    margin: 5px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

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

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

.btn-secondary {
    background-color: #6c757d;
    color: white;
}

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

.hidden {
    display: none;
}