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#667eea1a;transform:scale(1.02)}.loading{display:inline-block;width:24px;height:24px;border:4px solid rgba(255,255,255,.3);border-radius:50%;border-top-color:#fff;animation:spin 1s cubic-bezier(.68,-.55,.265,1.55) infinite}@keyframes spin{to{transform:rotate(360deg)}}@keyframes floatUp{0%,to{transform:translateY(0)}50%{transform:translateY(-20px)}}@keyframes floatSide{0%,to{transform:translate(0) rotate(0)}50%{transform:translate(10px) rotate(5deg)}}.rainbow-text{background:linear-gradient(90deg,#ff6b6b,#feca57,#48dbfb,#ff9ff3,#54a0ff,#00d2d3,#ff6b6b);background-size:200% auto;-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;animation:rainbow-flow 3s linear infinite}@keyframes rainbow-flow{to{background-position:200% center}}@media (max-width: 768px){.btn{padding:12px 24px;font-size:16px}.card{padding:20px;border-radius:20px}}.wave-decoration{position:fixed;bottom:0;left:0;width:100%;height:200px;pointer-events:none;z-index:0}.wave{position:absolute;bottom:0;left:0;width:200%;height:100%;background-repeat:repeat-x;animation:wave-animation 20s linear infinite}@keyframes wave-animation{0%{transform:translate(0)}to{transform:translate(-50%)}}