body { font-family: Arial, sans-serif; margin: 0; padding: 0; background: #f8f8f8; color: #333; }
header { background: #00796B; color: white; padding: 20px; text-align: center; }
nav a { margin: 0 10px; color: white; text-decoration: none; }
section { padding: 20px; background: white; margin: 20px; border-radius: 8px; }
footer { background: #004D40; color: white; text-align: center; padding: 10px; position: relative; bottom: 0; width: 100%; }