:root{font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light;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;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;min-height:60vh}.counter-app h1{font-size:2.5rem;margin-bottom:2rem;color:#646cff}.counter-display{font-size:6rem;font-weight:700;margin-bottom:2rem;min-width:200px;padding:1rem 2rem;border-radius:16px;background:linear-gradient(135deg,#f3f4f6,#e5e7eb);box-shadow:0 8px 32px #0000001a}.counter-display span{transition:color .3s ease}.counter-display span.positive{color:#4ade80}.counter-display span.negative{color:#f87171}.button-group{display:flex;gap:1rem;flex-wrap:wrap;justify-content:center}.button-group button{font-size:1.5rem;padding:.8rem 1.5rem;border-radius:12px;border:none;cursor:pointer;transition:all .3s ease;min-width:80px}.btn-decrement{background-color:#ef4444;color:#fff}.btn-decrement:hover{background-color:#dc2626;transform:translateY(-2px);box-shadow:0 4px 12px #ef444466}.btn-increment{background-color:#22c55e;color:#fff}.btn-increment:hover{background-color:#16a34a;transform:translateY(-2px);box-shadow:0 4px 12px #22c55e66}.btn-reset{background-color:#6b7280;color:#fff;font-size:1rem!important}.btn-reset:hover{background-color:#4b5563;transform:translateY(-2px);box-shadow:0 4px 12px #6b728066}