:root{--primary-color: #2563eb;--secondary-color: #1e40af;--accent-color: #f59e0b;--text-color: #1f2937;--light-text: #6b7280;--background-color: #f8fafc;--card-background: #ffffff;--border-color: #e5e7eb;--success-color: #10b981;--error-color: #ef4444;--shadow: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--transition: all .3s ease}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background-color:var(--background-color);color:var(--text-color);line-height:1.6}.container{width:90%;max-width:1200px;margin:0 auto;padding:20px}header{background-color:var(--card-background);box-shadow:var(--shadow);padding:1rem 0;position:sticky;top:0;z-index:100}footer{background-color:var(--text-color);color:#fff;padding:2rem 0;margin-top:auto}.btn{background-color:var(--primary-color);color:#fff;border:none;padding:.75rem 1.5rem;font-size:1rem;border-radius:.5rem;cursor:pointer;transition:var(--transition);font-weight:500}.btn:hover{background-color:var(--secondary-color);transform:translateY(-1px)}.btn:disabled{background-color:var(--light-text);cursor:not-allowed;transform:none}.btn-secondary{background-color:transparent;border:2px solid var(--primary-color);color:var(--primary-color)}.btn-secondary:hover{background-color:var(--primary-color);color:#fff}.main-content{min-height:calc(100vh - 200px);padding:2rem 0}h1{font-size:2.5rem;font-weight:700;color:var(--text-color);margin-bottom:1.5rem}h2{font-size:1.875rem;font-weight:600;color:var(--text-color);margin-bottom:1rem}h3{font-size:1.5rem;font-weight:600;color:var(--text-color);margin-bottom:.75rem}p{font-size:1rem;color:var(--light-text);line-height:1.6}.product-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:2rem;padding:2rem;max-width:1400px;margin:0 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ease;display:flex;align-items:center;justify-content:center;gap:.5rem;margin-top:1rem;position:relative;overflow:hidden}.loading-container{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:50vh;padding:2rem}.loading-spinner{width:50px;height:50px;border:5px solid #f3f3f3;border-top:5px solid var(--primary-color);border-radius:50%;animation:spin 1s linear infinite;margin-bottom:1rem}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.error-container{text-align:center;padding:2rem;margin:2rem auto;max-width:600px;background-color:#fff;border-radius:8px;box-shadow:0 2px 4px #0000001a}.error-container h2{color:#dc3545;margin-bottom:1rem}.error-container button{margin-top:1rem;padding:.5rem 1rem;background-color:var(--primary-color);color:#fff;border:none;border-radius:4px;cursor:pointer;transition:background-color .3s ease}.error-container button:hover{background-color:var(--primary-color-dark)}.no-products{text-align:center;padding:2rem;background-color:#f8f9fa;border-radius:8px;margin:2rem 0}.success-message{color:var(--success-color);background-color:#10b9811a;padding:1rem;border-radius:.5rem;margin:1rem 0;text-align:center}@media (max-width: 768px){.container{width:95%;padding:1rem}h1{font-size:2rem}h2{font-size:1.5rem}.product-list{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:1.5rem;padding:1rem}.product-item{padding:1rem}.product-item img{height:180px}.add-to-cart-btn{padding:.6rem 1.2rem;font-size:.9rem}}@media (max-width: 480px){.product-list{grid-template-columns:1fr}.product-item img{height:200px}.btn{padding:.5rem 1rem;font-size:.875rem}}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:fadeIn .5s ease-out forwards}.cart-badge{position:absolute;top:-8px;right:-8px;background-color:var(--accent-color);color:#fff;border-radius:50%;width:20px;height:20px;display:flex;align-items:center;justify-content:center;font-size:.75rem;font-weight:600}.empty-state{text-align:center;padding:2rem}.empty-state img{width:200px;height:auto;margin-bottom:1rem}.empty-state h3{color:var(--light-text);margin-bottom:.5rem}.home-page{max-width:1400px;margin:0 auto;padding:2rem;min-height:calc(100vh - 200px);display:flex;flex-direction:column;align-items:center}.home-page h1{text-align:center;font-size:2.5rem;font-weight:700;color:var(--text-color);margin-bottom:2rem;position:relative;padding-bottom:1rem}.home-page h1:after{content:"";position:absolute;bottom:0;left:50%;transform:translate(-50%);width:100px;height:4px;background:var(--primary-color);border-radius:2px}.product-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:2rem;width:100%;padding:1rem}.product-item{background-color:var(--card-background);border-radius:1rem;padding:1.5rem;box-shadow:var(--shadow);transition:var(--transition);display:flex;flex-direction:column;align-items:center;position:relative;overflow:hidden;height:100%;min-height:450px}.product-item:hover{transform:translateY(-5px);box-shadow:0 10px 15px -3px #0000001a,0 4px 6px -2px #0000000d}.product-item img{width:100%;height:200px;object-fit:cover;border-radius:.75rem;margin-bottom:1rem;transition:transform .3s ease}.product-item:hover img{transform:scale(1.05)}.product-item h3{font-size:1.25rem;margin-bottom:.5rem;text-align:center;color:var(--text-color);height:3rem;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.5;width:100%}.product-item .price{font-size:1.5rem;font-weight:600;color:var(--primary-color);margin:.5rem 0;text-align:center}.quantity-controls{display:flex;align-items:center;justify-content:center;gap:.75rem;margin:1rem 0;background-color:#f8f9fa;padding:.5rem;border-radius:2rem;width:fit-content}.quantity-btn{width:2.5rem;height:2.5rem;display:flex;align-items:center;justify-content:center;border:none;background-color:#fff;color:var(--primary-color);border-radius:50%;cursor:pointer;transition:all .3s ease;font-size:1.25rem;font-weight:700;box-shadow:0 2px 4px #0000001a}.quantity-btn:hover{background-color:var(--primary-color);color:#fff;transform:scale(1.1)}.quantity-btn:disabled{background-color:#e9ecef;color:#adb5bd;cursor:not-allowed;transform:none}.quantity-display{min-width:2.5rem;text-align:center;font-weight:600;font-size:1.1rem;color:var(--text-color)}.add-to-cart-btn{width:100%;padding:.75rem 1.5rem;background-color:var(--primary-color);color:#fff;border:none;border-radius:.5rem;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;justify-content:center;gap:.5rem;margin-top:auto;position:relative;overflow:hidden}.add-to-cart-btn:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(120deg,transparent,rgba(255,255,255,.2),transparent);transition:.5s}.add-to-cart-btn:hover:before{left:100%}.add-to-cart-btn:hover{background-color:var(--secondary-color);transform:translateY(-2px);box-shadow:0 4px 12px #2563eb33}.add-to-cart-btn:active{transform:translateY(0)}@media (max-width: 1200px){.home-page{padding:1.5rem}.product-list{grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:1.5rem}}@media (max-width: 768px){.home-page{padding:1rem}.home-page h1{font-size:2rem;margin-bottom:1.5rem}.product-list{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:1rem}.product-item{padding:1rem;min-height:400px}.product-item img{height:180px}.product-item h3{font-size:1.1rem;height:2.5rem}.add-to-cart-btn{padding:.6rem 1.2rem;font-size:.9rem}}@media (max-width: 480px){.home-page h1{font-size:1.75rem}.product-list{grid-template-columns:1fr}.product-item{min-height:380px}.product-item img{height:200px}}.admin-page{max-width:1200px;margin:0 auto;padding:2rem}.admin-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem}.admin-header h1{margin:0;color:var(--text-color)}.add-product-btn{display:flex;align-items:center;gap:.5rem;padding:.75rem 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h3{font-size:1.1rem;color:var(--text-color);margin-bottom:.5rem}.product-info .price{font-size:1.25rem;font-weight:600;color:var(--primary-color)}.product-info .description{font-size:.9rem;color:var(--light-text);margin-top:.5rem;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.product-actions{display:flex;gap:.75rem}.edit-btn,.delete-btn{flex:1;display:flex;align-items:center;justify-content:center;gap:.5rem;padding:.5rem;border:none;border-radius:.5rem;font-size:.9rem;font-weight:500;cursor:pointer;transition:all .3s ease}.edit-btn{background-color:var(--primary-color);color:#fff}.edit-btn:hover{background-color:var(--secondary-color)}.delete-btn{background-color:#fee2e2;color:#dc2626}.delete-btn:hover{background-color:#fecaca}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;padding:1rem}.modal-content{background-color:#fff;border-radius:1rem;padding:2rem;width:100%;max-width:500px;position:relative;max-height:90vh;overflow-y:auto}.close-btn{position:absolute;top:1rem;right:1rem;background:none;border:none;color:var(--light-text);cursor:pointer;padding:.5rem;border-radius:.5rem;transition:all .3s ease}.close-btn:hover{background-color:#f3f4f6;color:var(--text-color)}.modal-content h2{margin-bottom:1.5rem;color:var(--text-color);font-size:1.5rem}.product-form{display:flex;flex-direction:column;gap:1.5rem}.form-group{display:flex;flex-direction:column;gap:.5rem}.form-group 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img{width:100px;height:100px;object-fit:cover;border-radius:.5rem}.cart-item-details{display:flex;flex-direction:column;justify-content:space-between}.cart-item-name{font-size:1.25rem;font-weight:600;color:var(--text-color);margin-bottom:.5rem}.cart-item-price{font-size:1.25rem;font-weight:600;color:var(--primary-color)}.cart-item-actions{display:flex;flex-direction:column;align-items:flex-end;justify-content:space-between}.cart-summary{background-color:var(--card-background);border-radius:1rem;padding:1.5rem;box-shadow:var(--shadow);position:sticky;top:2rem}.cart-summary h3{font-size:1.5rem;color:var(--text-color);margin-bottom:1.5rem;padding-bottom:1rem;border-bottom:2px solid var(--border-color)}.summary-item{display:flex;justify-content:space-between;margin-bottom:1rem;color:var(--light-text)}.summary-total{display:flex;justify-content:space-between;margin-top:1rem;padding-top:1rem;border-top:2px solid var(--border-color);font-size:1.25rem;font-weight:600;color:var(--text-color)}.checkout-btn{width:100%;padding:1rem;background-color:var(--primary-color);color:#fff;border:none;border-radius:.5rem;font-size:1.1rem;font-weight:600;cursor:pointer;transition:var(--transition);margin-top:1.5rem}.checkout-btn:hover{background-color:var(--secondary-color);transform:translateY(-2px);box-shadow:0 4px 12px #2563eb33}.checkout-btn:active{transform:translateY(0)}@media (max-width: 1024px){.cart-container{grid-template-columns:1fr}.cart-summary{position:static}}@media (max-width: 768px){.cart-page{padding:1.5rem}.cart-title{font-size:2rem}.cart-item{grid-template-columns:1fr;text-align:center;gap:1rem}.cart-item img{width:150px;height:150px;margin:0 auto}.cart-item-actions{align-items:center}.empty-state{padding:3rem 1.5rem}.empty-state h3{font-size:1.5rem}}@media (max-width: 480px){.cart-page{padding:1rem}.cart-title{font-size:1.75rem}.cart-items,.cart-item{padding:1rem}.cart-item 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.7rem;max-width:98vw}}.product-image-container{position:relative;width:100%;height:200px;overflow:hidden;border-radius:.75rem;background-color:#f3f4f6}.image-placeholder{position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(90deg,#f3f4f6,#e5e7eb,#f3f4f6);background-size:200% 100%;animation:shimmer 1.5s infinite}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.product-item img{width:100%;height:100%;object-fit:cover;transition:opacity .3s ease}.product-item img.loading{opacity:0}.product-item img.loaded{opacity:1}.app{min-height:100vh;display:flex;flex-direction:column}.main-content{flex:1;padding:20px;max-width:1200px;margin:0 auto;width:100%}.products-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem;padding:2rem 0}.product-item{background:var(--card-background);border-radius:12px;padding:1.5rem;box-shadow:0 4px 6px #0000001a;transition:transform .2s ease,box-shadow .2s ease;display:flex;flex-direction:column;gap:1rem}.product-item:hover{transform:translateY(-5px);box-shadow:0 6px 12px #00000026}