{
    margin 0;
    padding 0;
    box-sizing border-box;
}

body {
    font-family -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background #f5f5f5;
    color #333;
    line-height 1.6;
}

.container {
    max-width 800px;
    margin 0 auto;
    padding 20px;
}

header {
    text-align center;
    padding 40px 0;
    background linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius 12px;
    color white;
    margin-bottom 30px;
}

header h1 {
    font-size 2.5rem;
    margin-bottom 10px;
}

.card {
    background white;
    border-radius 12px;
    padding 24px;
    margin-bottom 20px;
    box-shadow 0 2px 8px rgba(0,0,0,0.1);
}

.card h2 {
    color #667eea;
    margin-bottom 12px;
    padding-bottom 8px;
    border-bottom 2px solid #eee;
}

.card ul {
    margin-left 20px;
}

.card li {
    margin 8px 0;
}

footer {
    text-align center;
    padding 20px;
    color #666;
    font-size 14px;
}