body {
    font-family: 'Arial', sans-serif;
    background-color: #f4f6f9;
    color: #333;
}

.container {
    margin-top: 40px;
    background-color: #ffffff;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    padding: 20px;
    max-width: 1415px;
    margin: 0 auto;
}

h1 {
    font-size: 2.5rem;
    color: #007bff;
    margin-bottom: 20px;
    text-align: center;
    font-weight: bold;
}

h3 {
    color: #555;
}

.form-control {
    border-radius: 0.375rem;
    font-size: 1rem;
    width: 50% !important;
}

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

.btn-success:hover {
    background-color: #218838;
    border-color: #1e7e34;
}

#loading {
    font-size: 1.2rem;
    color: #6c757d;
    display: none;
}

.table {
    font-size: 0.9rem;
    margin-top: 30px;
    border-radius: 8px;
}

.table th, .table td {
    vertical-align: middle;
}

.table th {
    background-color: #007bff;
    color: white;
}

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

.table .btn {
    width: 100px;
    font-size: 0.8rem;
}

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

.table .btn-success:hover {
    background-color: #218838;
}

.table .btn-secondary {
    background-color: #6c757d;
    cursor: not-allowed;
}

@media (max-width: 768px) {
    .container {
        padding: 15px;
    }

    .form-control {
        width: 100%;
    }

    .btn {
        width: 100%;
    } 
}