/* Temel stil sıfırlama */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    padding: 20px;
}

header, main, footer {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    text-align: center;
}

h1 {
    color: #333;
}

p {
    color: #666;
}