.btn{padding:clamp(12px,2.5vw,16px) clamp(20px,4.5vw,32px);border-radius:8px;text-decoration:none;font-weight:700;display:inline-block;line-height:1.5;vertical-align:middle;transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;cursor:pointer}.btn:hover{transform:translateY(-2px);box-shadow:0 6px 18px rgba(0,0,0,.15)}.btn--primary{background:var(--primary-color);color:#fff;border:none}.btn--secondary{background:transparent;color:var(--primary-color);border:2px solid var(--primary-color)}