nav{transition:max-height .3s ease-in-out}#btn-contact{background-color:#010170;color:#fff;font-weight:400}#btn-profile{background-color:#e9b879;color:#010170;font-weight:400}.smartphone-nav{background-color:transparent}@media(max-width:768px){.smartphone-nav{background-color:#0b042a}}header{transition:all .3s ease-in-out}.nav-transition{background-color:transparent}.nav-bg,.nav-transition{transition:background-color .3s ease}.nav-bg{background-color:#0000b7}.scroll-down header{transform:translate3d(0,-100%,0)}