body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    background-color: #f4f4f4;
    color: #333;
}
header {
    background-color: #2c3e50;
    color: white;
    padding: 10px 0;
    text-align: center;
}
nav h1 {
    margin: 0;
    font-size: 24px;
}
nav ul {
    list-style: none;
    padding: 0;
}
nav ul li {
    display: inline;
    margin: 0 15px;
}
nav ul li a {
    color: white;
    text-decoration: none;
    font-weight: bold;
}
nav ul li a:hover {
    color: #3498db;
}
main {
    max-width: 800px;
    margin: 20px auto;
    padding: 0 20px;
}
section {
    background: white;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}
h2 {
    color: #2c3e50;
}
article {
    margin-bottom: 20px;
}
form {
    margin-top: 20px;
}
input, textarea {
    width: 100%;
    padding: 10px;
    margin: 5px 0;
    border: 1px solid #ccc;
    border-radius: 4px;
}
button {
    background-color: #3498db;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}
button:hover {
    background-color: #2980b9;
}
footer {
    text-align: center;
    padding: 10px 0;
    background-color: #2c3e50;
    color: white;
    position: fixed;
    bottom: 0;
    width: 100%;
}
@media (max-width: 600px) {
    nav ul li {
        display: block;
        margin: 10px 0;
    }
}