.loading-spinner{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.spinner{width:50px;height:50px;border:4px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite;margin-bottom:20px;will-change:transform}@keyframes spin{to{transform:rotate(360deg)}}.loading-spinner p{font-size:1.2rem;opacity:.9}*{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;color:#fff;overflow-x:hidden}#root{width:100%;min-height:100vh}button,.card{touch-action:manipulation;-webkit-tap-highlight-color:transparent}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:rgba(255,255,255,.1);border-radius:5px}::-webkit-scrollbar-thumb{background:rgba(255,255,255,.3);border-radius:5px}::-webkit-scrollbar-thumb:hover{background:rgba(255,255,255,.5)}