*{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:#000000;min-height:100vh}.app{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:20px}.container{text-align:center;background:transparent;padding:3rem 2rem;max-width:500px;width:100%}h1{color:#fff;font-size:2.5rem;margin-bottom:2rem;font-weight:700}.loading{margin:2rem 0}.spinner{width:50px;height:50px;border:4px solid #f3f3f3;border-top:4px solid #667eea;border-radius:50%;animation:spin 1s linear infinite;margin:0 auto 1rem}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.loading p{color:#666;font-size:1.1rem;margin-bottom:1rem}.subtitle{color:#888;font-size:.9rem;line-height:1.5}.subtitle a{color:#667eea;text-decoration:none;font-weight:600}.subtitle a:hover{text-decoration:underline}@media (max-width: 600px){.container{padding:2rem 1.5rem;margin:1rem}h1{font-size:2rem}.loading p{font-size:1rem}}