*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh;display:flex;align-items:center;justify-content:center;color:#333}.app-container{width:100%;height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}.loading-card{background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:20px;padding:60px 40px;text-align:center;box-shadow:0 20px 40px #0000001a;max-width:400px;width:100%;border:1px solid rgba(255,255,255,.2)}.spinner{width:60px;height:60px;border:4px solid #f3f3f3;border-top:4px solid #667eea;border-radius:50%;animation:spin 1s linear infinite;margin:0 auto 30px}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.loading-message{font-size:28px;font-weight:600;color:#333;margin-bottom:15px;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.loading-subtitle{font-size:16px;color:#666;line-height:1.5;font-weight:400}@media (max-width: 480px){.loading-card{padding:40px 30px;margin:20px}.loading-message{font-size:24px}.loading-subtitle{font-size:14px}.spinner{width:50px;height:50px}}.loading-card{animation:fadeInUp .6s ease-out}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}