body {
    background-color: #f4f4f4;
    font-family: Arial, sans-serif;
    font-size: 16px;
    color: #222;
    max-width: 1100px;
    margin: 0 auto;
    padding: 20px;
}

nav {
    background-color: #2c3e50;
    padding: 12px 16px;
    margin-bottom: 24px;
    border-radius: 4px;
}

nav a {
    color: #ecf0f1;
    text-decoration: none;
    margin-right: 16px;
}

nav a:hover {
    text-decoration: underline;
}

h1, h2 {
    color: #2c3e50;
    margin-bottom: 12px;
}

table {
    background-color: white;
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 24px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

th {
    background-color: #2c3e50;
    color: #ecf0f1;
    text-align: left;
    padding: 0.75rem;
}

td {
    padding: 0.75rem;
    border-bottom: 1px solid #ddd;
}

tr:hover {
    background-color: #f0f0f0;
}

a {
    color: #2980b9;
}

input[type=text], input[type=password] {
    padding: 8px;
    width: 250px;
    margin-bottom: 8px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

input[type=submit] {
    padding: 8px 16px;
    background-color: #2c3e50;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

input[type=submit]:hover {
    background-color: #34495e;
}