body { font-family: Georgia, serif; margin: 0; background: #fafafa; color: #222; line-height: 1.7; }
header { background: #111; color: white; padding: 30px 20px; text-align: center; }
nav a { color: white; margin: 0 15px; text-decoration: none; font-weight: bold; }
main { max-width: 800px; margin: 40px auto; padding: 20px; background: white; box-shadow: 0 0 10px rgba(0,0,0,0.05); }