body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #f4f4f9;
    color: #333;
}
header {
    background: #35495e;
    color: #fff;
    padding: 1rem 0;
    text-align: center;
}
header h1 {
    margin: 0;
}
nav ul {
    list-style: none;
    padding: 0;
}
nav ul li {
    display: inline;
    margin: 0 15px;
}
nav ul li a {
    color: #fff;
    text-decoration: none;
}
main {
    max-width: 800px;
    margin: 20px auto;
    padding: 20px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}
.post {
    border-bottom: 1px solid #eee;
    padding-bottom: 20px;
    margin-bottom: 20px;
}
.post h2 {
    color: #35495e;
}
footer {
    text-align: center;
    padding: 1rem 0;
    font-size: 0.9rem;
    color: #777;
}