.btn-download{position:fixed;bottom:16px;right:16px;padding:8px 12px;border-radius:20px;border:none;background:#0009;color:#fff;font-size:14px;font-weight:500;cursor:pointer;display:flex;align-items:center;gap:6px;backdrop-filter:blur(4px);opacity:.85;transition:all .2s ease}.btn-download:hover{opacity:1;background:#000c;transform:scale(1.05)}.icon{animation:pulse 1.5s infinite}@keyframes pulse{0%{transform:scale(1);opacity:.7}50%{transform:scale(1.2);opacity:1}to{transform:scale(1);opacity:.7}}