.whatsapp-btn-left{position:fixed;bottom:20px;left:20px;z-index:9999;display:none}.whatsapp-btn-left img{width:60px;height:60px}@media (min-width: 992px){.whatsapp-btn-left{display:block}}.loader{width:60px;aspect-ratio:4;background:radial-gradient(circle closest-side,#000 90%,#0000) 0/calc(100%/3) 100% space;clip-path:inset(0 100% 0 0);animation:l1 1s steps(4) infinite}@keyframes l1{to{clip-path:inset(0 -34% 0 0)}}.invoice-box{background:#fff;padding:30px;border-radius:12px;box-shadow:0 0 15px #0000000d;font-family:Segoe UI,sans-serif}.invoice-box h4{margin-bottom:20px;border-bottom:2px solid #eee;padding-bottom:10px}