/* Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: box-border;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f4f4f4;
}

header {
    background: #2c3e50;
    color: #fff;
    padding: 2rem;
    text-align: center;
}

header h1 {
    margin-bottom: 0.5rem;
}

main {
    max-width: 800px;
    margin: 2rem auto;
    padding: 0 1rem;
}

section {
    margin-bottom: 2rem;
    background: #fff;
    padding: 1.5rem;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

footer {
    text-align: center;
    padding: 1.5rem;
    color: #666;
    font-size: 0.9rem;
}