body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background: #f9f9f9;
    color: #222;
}

.container {
    max-width: 800px;
    margin: auto;
    padding: 20px;
    background: white;
}

h1, h2, h3 {
    color: #111;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

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

th, td {
    padding: 10px;
    text-align: left;
}

nav {
    background: #111;
    padding: 10px;
}

nav a {
    color: white;
    margin-right: 15px;
    text-decoration: none;
}

.section {
    margin-bottom: 30px;
}