*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;background:#f8f9fa;color:#212529}button{font-family:inherit;font-size:1rem;border:none;border-radius:12px;padding:16px 24px;cursor:pointer;transition:background-color .2s;font-weight:500}button:active{transform:scale(.98)}.container{max-width:800px;margin:0 auto;padding:20px;min-height:100vh;display:flex;flex-direction:column}@media (min-width: 768px){.container{padding:40px}}@media (max-width: 480px){button{padding:14px 20px}}h1,h2,h3,h4,h5,h6{margin-top:0;font-weight:600;line-height:1.2}h1{font-size:2rem}h2{font-size:1.75rem}h3{font-size:1.5rem}p{line-height:1.5;margin-bottom:1rem}.text-center{text-align:center}.mt-2{margin-top:.5rem}.mt-4{margin-top:1rem}.mt-8{margin-top:2rem}.mb-2{margin-bottom:.5rem}.mb-4{margin-bottom:1rem}.mb-8{margin-bottom:2rem}.bg-white{background-color:#fff}.shadow-sm{box-shadow:0 2px 8px #00000014}.rounded-lg{border-radius:16px}.p-4{padding:1.5rem}.p-6{padding:2rem}@keyframes pulse{0%{transform:translateY(-50%) scale(1);opacity:.8}to{transform:translateY(-50%) scale(1.1);opacity:1}}@keyframes blink{0%,to{opacity:1}50%{opacity:.3}}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.fade-in{animation:fadeIn .5s ease-out}.float{animation:float 3s ease-in-out infinite}.twinkle{animation:blink 2s infinite alternate}