body font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.7; margin: 0; padding: 0; background-color: #f8f9fa; color: #212529; header background-color: #004080; color: white; padding: 40px 20px; text-align: center; header h1 font-size: 2.5em; margin-bottom: 10px;