body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background: #f4f7fa; margin: 0; padding: 0; }
header { background: #1d3557; color: #fff; padding: 20px 0; text-align: center; }
nav a { color: #f1faee; margin: 0 15px; text-decoration: none; font-weight: bold; }
main { padding: 30px; }
h1, h2 { color: #1d3557; }
ul.deals { list-style: none; padding: 0; }
ul.deals li { background: #fff; border: 1px solid #ddd; padding: 15px; margin-bottom: 10px; border-radius: 8px; }