body font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; margin: 0; padding: 0; background-color: #f4f7fa; color: #222; line-height: 1.8; header background-color: #002b5e; color: white; padding: 40px 20px; text-align: center; header h1 font-size: 2.8rem; marg