body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    color: #333;
    background-color: #f9f9f9;
}
header {
    background-color: #2c3e50;
    color: white;
    padding: 1rem;
    text-align: center;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo {
    font-size: 1.5rem;
    font-weight: bold;
}
nav ul {
    list-style: none;
    display: flex;
    margin: 0;
    padding: 0;
}
nav ul li {
    margin-left: 1rem;
}
nav ul li a {
    color: white;
    text-decoration: none;
}
.container {
    width: 80%;
    margin: auto;
    overflow: hidden;
    padding: 2rem 0;
}
h1, h2, h3 {
    color: #2c3e50;
}
.highlight {
    background-color: #ecf0f1;
    padding: 1.5rem;
    border-left: 4px solid #3498db;
    margin: 1.5rem 0;
    border-radius: 5px;
}
table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
}
table, th, td {
    border: 1px solid #ddd;
}
th, td {
    padding: 0.75rem;
    text-align: left;
}
.button {
    display: inline-block;
    background-color: #3498db;
    color: white;
    padding: 0.75rem 1.5rem;
    text-decoration: none;
    border-radius: 5px;
    margin: 0.5rem 0;
    transition: background-color 0.3s;
}
.button:hover {
    background-color: #2980b9;
}
footer {
    background-color: #2c3e50;
    color: white;
    text-align: center;
    padding: 1rem;
    position: fixed;
    width: 100%;
    bottom: 0;
}
.section-title {
    border-bottom: 2px solid #3498db;
    padding-bottom: 0.5rem;
    margin-top: 2rem;
}