:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;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:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}.card{padding:2em}#app{max-width:1280px;margin:0 auto;padding:2rem;text-align:center}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}:root{--color-primary: #2ECC71;--color-primary-dark: #27AE60;--color-text: #34495E;--color-bg-light: #F4F6F7;--color-error: #E74C3C;--shadow-light: 0 4px 6px rgba(0, 0, 0, .1)}body{background-color:var(--color-bg-light);font-family:Avenir,Helvetica,Arial,sans-serif;color:var(--color-text);line-height:1.6}.app-container{max-width:1200px;margin:30px auto;padding:0 20px}.app-header{text-align:center;margin-bottom:40px;padding:20px;border-bottom:1px solid #EAECEE}.logo{font-size:2.5rem;font-weight:700;color:var(--color-primary-dark)}.tagline{font-size:1rem;color:#7f8c8d;margin-top:5px}.main-layout{display:grid;grid-template-columns:3fr 1.5fr;gap:40px}.section-title{font-size:1.8rem;color:var(--color-text);margin-bottom:25px;border-left:5px solid var(--color-primary);padding-left:10px}.products-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:25px}.product-card{background:#fff;padding:20px;border-radius:10px;box-shadow:var(--shadow-light);transition:transform .2s,box-shadow .2s;display:flex;flex-direction:column}.product-card:hover{transform:translateY(-5px);box-shadow:0 8px 15px #00000026}.product-name{color:var(--color-primary-dark);font-size:1.5rem;margin-top:0}.product-desc{color:#7f8c8d;font-size:.9rem;flex-grow:1}.product-footer{display:flex;justify-content:space-between;align-items:center;margin-top:15px;padding-top:10px;border-top:1px dashed #EAECEE}.product-price{font-size:1.3rem;font-weight:700;color:var(--color-primary)}.product-image{width:100%;height:150px;object-fit:cover;margin-bottom:15px;border-radius:8px;border:1px solid #EAECEE}button{cursor:pointer;border:none;border-radius:6px;padding:10px 15px;font-weight:600;transition:background-color .2s}.btn-add-to-cart{background:var(--color-primary);color:#fff}.btn-add-to-cart:hover{background:var(--color-primary-dark)}.sidebar-cart{position:sticky;top:30px;align-self:flex-start}.cart-box{background:#fff;padding:20px;border-radius:10px;box-shadow:var(--shadow-light);margin-bottom:20px}.cart-title{font-size:1.5rem;margin-top:0;padding-bottom:10px;border-bottom:2px solid var(--color-bg-light)}.cart-items{margin:15px 0;max-height:300px;overflow-y:auto}.cart-item{display:flex;justify-content:flex-start;align-items:center;padding:10px 0;border-bottom:1px dotted #EAECEE}.cart-item-image{width:50px;height:50px;object-fit:cover;border-radius:4px;margin-right:10px}.item-info{flex-grow:1;display:flex;justify-content:space-between;margin-right:10px}.item-name{font-weight:600}.item-price{color:var(--color-primary-dark);font-size:.95rem;margin-left:10px}.item-controls{display:flex;align-items:center}.btn-qty{background:#eaecee;color:var(--color-text);padding:4px 10px;margin:0 5px;font-size:1rem;line-height:1}.btn-qty:hover{background:#d5dbdb}.item-qty{width:20px;text-align:center}.cart-total{display:flex;justify-content:space-between;align-items:center;margin-top:15px;padding-top:15px;border-top:2px solid var(--color-primary)}.cart-total h3{margin:0;font-size:1.2rem}.total-price{font-size:1.5rem;font-weight:700;color:#e74c3c}.checkout-form{background:#fff;padding:20px;border-radius:10px;box-shadow:var(--shadow-light)}.form-group{margin-bottom:15px}label{display:block;margin-bottom:5px;font-weight:600;font-size:.95rem}input,textarea{width:100%;padding:10px;border:1px solid #D5DBDB;border-radius:6px;box-sizing:border-box;transition:border-color .2s}input:focus,textarea:focus{border-color:var(--color-primary);outline:none}.input-error{border-color:var(--color-error)!important}.input-error-border{padding:8px;border:1px solid var(--color-error);border-radius:6px}.btn-checkout{width:100%;background:#e74c3c;color:#fff;padding:12px;font-size:1.1rem;margin-top:10px}.btn-checkout:hover{background:#c0392b}.alert{padding:15px;border-radius:8px;margin-bottom:25px;display:flex;justify-content:space-between;align-items:center}.alert.success{background:#d4edda;color:#155724;border:1px solid #C3E6CB}.alert.error{background:#f8d7da;color:#721c24;border:1px solid #F5C6CB}.btn-close{background:transparent;color:#155724;font-size:1.5rem;padding:0;line-height:1}.error-message{color:var(--color-error);font-size:.85rem;margin-top:5px;padding-left:2px;font-weight:500}.radio-group{display:flex;flex-direction:column;gap:10px;margin-top:10px}.radio-item{display:flex;align-items:center}.radio-item input[type=radio]{width:auto;margin-right:8px;cursor:pointer}.radio-label{margin:0;font-weight:400;font-size:.95rem;cursor:pointer;display:flex;align-items:center}@media(max-width:992px){.main-layout{grid-template-columns:1fr}.sidebar-cart{position:static}}@media(max-width:600px){.app-header{margin-bottom:20px}.logo{font-size:2rem}}