.app{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#667eea,#764ba2)}.container{text-align:center;padding:2rem}h1{color:#fff;font-size:3rem;margin-bottom:2rem;font-weight:600}.demo-button{background-color:#fff;color:#667eea;border:none;padding:1rem 2rem;font-size:1.2rem;font-weight:600;border-radius:8px;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 6px #0000001a}.demo-button:hover{transform:translateY(-2px);box-shadow:0 6px 12px #0003;background-color:#f0f0f0}.demo-button:active{transform:translateY(0)}*{margin:0;padding:0;box-sizing:border-box}body{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}#root{width:100%;min-height:100vh}