.btn{padding:10px 20px;white-space:nowrap;border-radius:var(--br-1);border:none;cursor:pointer;font-size:var(--fs-2);transition:all .3s ease}.btn:hover{filter:brightness(.9)}.btn.primary{background-color:var(--primary-color)}.btn.secondary{background-color:var(--secondary-color);color:white}.btn.tertiary{background-color:transparent}