body {
    font-family: Arial, sans-serif;
    margin: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.container {
    max-width: 800px;
    width: 100%;
    background: #f9f9f9;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

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

th {
    background-color: #f2f2f2;
    text-align: left;
}

input[type="text"], input[type="number"], textarea, select {
    width: 100%;
    padding: 8px;
    margin: 5px 0;
    box-sizing: border-box;
}

button {
    padding: 10px 20px;
    margin-top: 10px;
    cursor: pointer;
}

.hidden {
    display: none;
}

.editable:hover {
    background-color: #e0e0e0;
    cursor: pointer;
}