body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 20px;
    background-color: #f4f4f9;
    color: #333;
    text-align: center;
}

header {
    margin-bottom: 40px;
}

h1 { color: #2c3e50; }

section {
    background: white;
    padding: 20px;
    border-radius: 8px;
    max-width: 600px;
    margin: 10px auto;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

a { color: #3498db; text-decoration: none; font-weight: bold; }