:root{font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color:#213547;background-color:#fff;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#f9f9f9;color:#213547;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}a:hover{color:#747bff}#root{max-width:1280px;margin:0 auto;padding:2rem;text-align:center}.counter-app{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2rem}.counter-app h1{color:#646cff;margin:0}.counter-display{background:linear-gradient(135deg,#646cff,#a855f7);border-radius:20px;padding:3rem 5rem;box-shadow:0 10px 40px #646cff4d}.count{font-size:6rem;font-weight:700;color:#fff;line-height:1}.button-group{display:flex;gap:1rem;flex-wrap:wrap;justify-content:center}.btn{border-radius:12px;border:2px solid transparent;padding:1rem 2rem;font-size:1.5rem;font-weight:600;cursor:pointer;transition:all .2s ease;min-width:100px}.btn:hover{transform:translateY(-2px);box-shadow:0 4px 12px #00000026}.btn:active{transform:translateY(0)}.btn-decrement{background-color:#ef4444;color:#fff}.btn-decrement:hover{border-color:#dc2626;background-color:#dc2626}.btn-reset{background-color:#6b7280;color:#fff}.btn-reset:hover{border-color:#4b5563;background-color:#4b5563}.btn-increment{background-color:#22c55e;color:#fff}.btn-increment:hover{border-color:#16a34a;background-color:#16a34a}@media (prefers-color-scheme: light){.counter-app h1{color:#4f46e5}.btn-decrement{background-color:#fca5a5;color:#7f1d1d}.btn-decrement:hover{background-color:#f87171}.btn-reset{background-color:#d1d5db;color:#374151}.btn-reset:hover{background-color:#9ca3af}.btn-increment{background-color:#86efac;color:#14532d}.btn-increment:hover{background-color:#4ade80}}