body { font-family: sans-serif; line-height: 1.6; margin: 0; padding: 0; background: #f4f4f4; }
nav { background: #2c3e50; padding: 1rem; text-align: center; }
nav a { color: white; margin: 0 10px; text-decoration: none; font-weight: bold; }
nav a:hover { color: #3498db; }
header { background: #3498db; color: white; padding: 2rem; text-align: center; }
main { max-width: 800px; margin: 20px auto; background: white; padding: 20px; border-radius: 8px; box-shadow: 0 0 10px rgba(0,0,0,0.1); }
h1, h2 { color: #2c3e50; }
.info-box { border-left: 5px solid #3498db; padding-left: 15px; margin-top: 20px; }