.app{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#667eea,#764ba2);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.counter-container{background:#fff;padding:3rem 2rem;border-radius:20px;box-shadow:0 20px 40px #0000001a;text-align:center;min-width:300px;transform:translateY(0);transition:transform .3s ease}.counter-container:hover{transform:translateY(-5px)}h1{color:#333;margin-bottom:2rem;font-size:2.5rem;font-weight:300;letter-spacing:-1px}.counter-display{margin:2rem 0;padding:1.5rem;background:#f8f9fa;border-radius:15px;border:2px solid #e9ecef}.count-number{font-size:4rem;font-weight:700;color:#495057;display:block;transition:all .3s ease}.button-group{display:flex;gap:1rem;justify-content:center;margin-top:2rem}.counter-btn{padding:1rem 1.5rem;border:none;border-radius:12px;font-size:1.2rem;font-weight:600;cursor:pointer;transition:all .2s ease;min-width:80px;box-shadow:0 4px 12px #0000001a}.counter-btn:hover{transform:translateY(-2px);box-shadow:0 6px 16px #00000026}.counter-btn:active{transform:translateY(0)}.increment{background:#28a745;color:#fff}.increment:hover{background:#218838}.decrement{background:#dc3545;color:#fff}.decrement:hover{background:#c82333}.reset{background:#6c757d;color:#fff}.reset:hover{background:#5a6268}@media (max-width: 480px){.counter-container{margin:1rem;padding:2rem 1rem;min-width:auto}.button-group{flex-direction:column;gap:.8rem}.counter-btn{width:100%}h1{font-size:2rem}.count-number{font-size:3rem}}*{margin:0;padding:0;box-sizing:border-box}body{margin:0;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}