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;background-color:#f0f2f5;color:#333}.App{text-align:center;padding:2rem}.App-header h1{font-size:2.5rem;color:#1a237e;margin-bottom:3rem;text-shadow:1px 1px 2px rgba(0,0,0,.1)}.counters-container{display:flex;justify-content:center;align-items:center;gap:3rem;flex-wrap:wrap}.counter-card{background:#fff;border-radius:15px;box-shadow:0 10px 20px #0000001a;padding:2rem 2.5rem;width:300px;transition:transform .3s ease,box-shadow .3s ease}.counter-card:hover{transform:translateY(-10px);box-shadow:0 15px 30px #00000026}.counter-card h3{font-size:1.5rem;color:#555;margin-top:0;margin-bottom:1.5rem;border-bottom:2px solid #eee;padding-bottom:1rem}.counter-display{font-size:5rem;font-weight:700;color:#007bff;margin:1.5rem 0}.button-group{display:flex;justify-content:center;gap:1.5rem;margin-top:1.5rem}.button-group button{font-size:2rem;font-weight:700;border:none;width:60px;height:60px;border-radius:50%;color:#fff;cursor:pointer;transition:background-color .2s ease,transform .2s ease;display:flex;justify-content:center;align-items:center}.button-group button:last-child{background-color:#28a745}.button-group button:last-child:hover{background-color:#218838}.button-group button:first-child{background-color:#dc3545}.button-group button:first-child:hover{background-color:#c82333}.button-group button:disabled{background-color:#6c757d;cursor:not-allowed;opacity:.6}.button-group button:not(:disabled):active{transform:scale(.95)}