*{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;line-height:1.6;color:#333}.App{min-height:100vh}.container{max-width:1200px;margin:0 auto;padding:0 20px}.btn{display:inline-block;padding:12px 24px;border:none;border-radius:6px;text-decoration:none;font-weight:600;cursor:pointer;transition:all .3s ease}.btn-primary{background-color:#007bff;color:#fff}.btn-primary:hover{background-color:#0056b3;transform:translateY(-2px)}.btn-secondary{background-color:#6c757d;color:#fff}.btn-secondary:hover{background-color:#545b62;transform:translateY(-2px)}@media (max-width: 768px){.container{padding:0 15px}}