.app{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}.container{max-width:1400px;width:100%;text-align:center}h1{color:#fff;font-size:2.5rem;margin-bottom:.5rem;text-shadow:2px 2px 4px rgba(0,0,0,.3)}.subtitle{color:#ffffffe6;font-size:1.1rem;margin-bottom:2rem}.canvas-wrapper{background:#fff;border-radius:16px;padding:20px;box-shadow:0 20px 60px #0000004d;margin-bottom:2rem}.particle-canvas{width:100%;height:auto;display:block;max-width:100%}.info{color:#fff;font-size:1rem;opacity:.9}.info p{margin:.5rem 0}@media(max-width:768px){h1{font-size:1.8rem}.subtitle{font-size:.95rem}.canvas-wrapper{padding:15px}}*{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;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh}