*{box-sizing:border-box}body{color:#222;background:#f5f6f8;margin:0;font-family:Arial,sans-serif}button,input{font:inherit}button{cursor:pointer}.app{width:min(960px,100% - 32px);margin:0 auto;padding:40px 0}h1{margin:0 0 10px}.description{color:#666;margin:0 0 24px}.search-bar{margin-bottom:14px}.search-bar input,.filter-panel input{background:#fff;border:1px solid #cfd3df;border-radius:10px;width:100%;padding:12px 14px}.filter-panel{gap:12px;margin-bottom:20px;display:grid}.category-buttons{flex-wrap:wrap;gap:8px;display:flex}.category-buttons button,.card-actions button,.detail-panel button,.reset-button{color:#333;background:#e7e9f7;border:0;border-radius:999px;padding:10px 14px}.category-buttons button.active,.card-actions button.primary{color:#fff;background:#4c35e4}.reset-button{width:fit-content}.status{color:#555;margin:0 0 16px}.error-message{color:#cc3340;background:#fff0f0;border-radius:10px;margin:0 0 12px;padding:12px 14px}.empty{color:#666;text-align:center;background:#fff;border:1px dashed #cfd3df;border-radius:14px;padding:24px}.product-list{gap:16px;display:grid}.product-card{background:#fff;border:1px solid #e0e3ec;border-radius:16px;padding:20px}.product-card h2{margin:0 0 8px;font-size:20px}.product-card p{color:#555;margin:0}.product-meta{color:#666;gap:10px;margin-top:12px;display:flex}.price{color:#4c35e4;font-weight:700}.card-actions{gap:8px;margin-top:16px;display:flex}.detail-panel{background:#fff;border:1px solid #d7daf0;border-radius:18px;margin-bottom:20px;padding:22px}.detail-panel h2{margin:0 0 8px}.detail-panel dl{grid-template-columns:80px 1fr;gap:8px 12px;margin:16px 0;display:grid}.detail-panel dt{color:#555;font-weight:700}.detail-panel dd{margin:0}