.Header{position:fixed;top:0;left:0;width:100%;z-index:1000;overflow-x:auto;overflow-y:hidden;white-space:nowrap}.Header>button{padding:8px 16px;border:none;background-color:transparent;cursor:pointer;font-size:16px;color:#333;transition:font-weight .3s ease}.Header>button.font-bold,.Header>button:hover{font-weight:700}.Footer{position:fixed;bottom:0;left:0;width:100%;background-color:var(--card);z-index:1000}.main{padding-top:30px;padding-bottom:70px}.side-menu{position:fixed;top:0;right:-250px;width:250px;height:100%;box-shadow:-2px 0 5px rgba(0,0,0,.1);transition:right .3s ease;z-index:1000}.side-menu.open{right:0}.side-menu button{display:block;margin:16px;padding:8px 16px}