* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    padding: 20px;
    color: #333;
}

.sidebar {
    position: fixed;
    top: 20px;
    left: 20px;
    width: 200px;
    height: calc(100% - 40px);
    background-color: #e2dddd;
    color: #333; 
    padding: 20px;
    border-radius: 8px;
    overflow-y: auto;
}

.sidebar h2 {
    text-align: center;
    font-size: 22px;
    margin-bottom: 20px;
}

.sidebar ul {
    list-style: none;
    padding: 0;
}

.sidebar ul li {
    margin: 10px 0;
}

.sidebar ul li a {
    color: #333;
    text-decoration: none;
    display: block;
    padding: 8px 15px;
    border-radius: 4px;
    transition: background-color 0.3s, color 0.3s; 
}

.sidebar ul li a:hover {
    background-color: #444; 
    color: #fff; 
}

.container {
    display: flex;
    gap: 20px;
    margin-left: 240px; 
}

.content {
    flex: 1;
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
}

h2 {
    margin-bottom: 20px;
    font-size: 24px;
    color: #333;
}

form label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
}

form input {
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

form button {
    padding: 10px 15px;
    background-color: #008000; 
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s; 
}

form button:hover {
    background-color: #218838; 
}

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

table, th, td {
    border: 1px solid #ccc;
}

th, td {
    padding: 12px;
    text-align: center;
}

th {
    background-color: #e2dddd;
}

tbody tr:nth-child(odd) {
    background-color: #f9f9f9; 
}

button{
    padding: 10px 15px;
    background-color: #008000; 
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s; 
}