.shared-header { position: sticky; top: 0; z-index: 1000; background: #f8f9fa; padding: 15px 20px; text-align: center; box-shadow: 0 2px 10px rgba(0,0,0,0.05); }.shared-footer { background: #113B7A; color: white; text-align: center; padding: 20px; margin-top: 30px; }.shared-header nav { display: flex; justify-content: center; gap: 20px; }