.download-card{border-radius:20px;border:2px solid transparent;transition:transform .3s,box-shadow .3s,border-color .3s}.download-card:hover{transform:translateY(-8px);box-shadow:0 20px 50px #667eea33!important;border-color:#667eea}.os-icon{width:100px;height:100px;border-radius:24px;background:linear-gradient(135deg,#667eea,#764ba2);display:flex;align-items:center;justify-content:center;margin:0 auto 1.5rem}