*{box-sizing:border-box;padding:0;margin:0}body,html{max-width:100vw;overflow-x:hidden;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{background-color:#f5f5f5;color:#333}.main{padding-top:2rem}.input-section{background-color:#f8f9fa;padding:2rem;border-radius:10px;margin-bottom:2rem}button{width:100%;padding:.75rem 1.5rem;font-size:1rem;border:none;border-radius:5px;cursor:pointer;transition:background-color .2s}button:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background-color:#007bff;color:#fff}.btn-primary:hover:not(:disabled){background-color:#0056b3}.btn-secondary{background-color:#6c757d;color:#fff}.btn-secondary:hover:not(:disabled){background-color:#545b62}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.fade-in{animation:fadeIn .5s ease-in}@keyframes fadeOut{0%{opacity:1}to{opacity:0}}.fade-out{animation:fadeOut .5s ease-out}