body {
    font-family: system-ui, -apple-system, sans-serif;
    line-height: 1.6;
    color: #333;
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
}

header {
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid #ddd;
}

header h1 {
    margin: 0 0 0.5rem 0;
}

.event-banner {
    background: #fff3cd;
    border: 1px solid #ffc107;
    border-radius: 6px;
    padding: 1rem 1.5rem;
    margin-bottom: 2rem;
}

.event-banner h2 {
    margin: 0 0 0.5rem 0;
    color: #856404;
}

.event-banner p {
    margin: 0;
    color: #533f03;
}

.explanation {
    background: #f8f9fa;
    border-radius: 6px;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

footer {
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid #ddd;
    color: #666;
    font-size: 0.9rem;
}