.header{background:#000000f2;box-shadow:0 2px 20px #0000004d;position:sticky;top:0;z-index:100;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-bottom:1px solid rgba(255,255,255,.1)}.header-container{display:flex;justify-content:space-between;align-items:center;padding:1.2rem 2rem;max-width:1400px;margin:0 auto}.logo h1{color:#f44;font-size:2.8rem;text-decoration:none;font-weight:900;letter-spacing:-1px;text-transform:uppercase}.nav{display:flex;gap:3rem;background:transparent;padding:0;border-radius:0;-webkit-backdrop-filter:none;backdrop-filter:none;border:none}.nav a{text-decoration:none;color:#fff;font-weight:600;font-size:1rem;padding:.5rem 0;border-radius:0;transition:all .3s ease;position:relative;text-transform:uppercase;letter-spacing:1px}.nav a:after{content:"";position:absolute;bottom:-5px;left:0;width:0;height:2px;background:#f44;transition:width .3s ease}.nav a:hover:after{width:100%}.nav 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.5rem;font-size:1.3rem;margin-bottom:.5rem;color:#222;font-weight:700;text-transform:uppercase;letter-spacing:1px}.category-card p{padding:0 1.5rem 1.5rem;color:#666;line-height:1.5;font-size:.9rem}.category-card:first-child{position:relative;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.category-card:first-child h3,.category-card:first-child p{color:#fff}.category-card:first-child:before{content:"⭐";position:absolute;top:15px;right:15px;font-size:1.5rem;opacity:.8}.features{background:#fff;padding:4rem 0}.features h2{text-align:center;margin-bottom:3rem;font-size:2rem;color:#222;font-weight:700;text-transform:uppercase;letter-spacing:1px}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem;max-width:1200px;margin:0 auto;padding:0 2rem}.feature{text-align:center;padding:2rem 1rem;background:transparent;border-radius:0;box-shadow:none}.feature 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h3{margin-bottom:.8rem;font-size:1.4rem;color:#2c3e50;font-weight:600;line-height:1.3}.product-description{color:#7f8c8d;margin-bottom:1.5rem;font-size:.95rem;line-height:1.6}.product-price{font-size:1.6rem;font-weight:700;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:1.5rem}.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:2rem;background:linear-gradient(135deg,#222,#1a1a1a);position:relative;overflow:hidden}.auth-page:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:radial-gradient(circle at 20% 30%,rgba(255,68,68,.1) 0%,transparent 50%),radial-gradient(circle at 80% 70%,rgba(255,68,68,.05) 0%,transparent 50%);z-index:1}.auth-container{background:#fffffffa;padding:3rem;border-radius:20px;box-shadow:0 20px 60px #0000004d;width:100%;max-width:500px;position:relative;z-index:2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,.2)}.auth-container h2{text-align:center;margin-bottom:2rem;color:#222;font-size:2.5rem;font-weight:800;text-transform:uppercase;letter-spacing:2px}.auth-form{width:100%;position:relative;z-index:15}.form-group{margin-bottom:1.5rem;position:relative;z-index:20}.form-group label{display:block;margin-bottom:.8rem;color:#333;font-weight:600;font-size:1rem;text-transform:uppercase;letter-spacing:1px}.form-group input{-webkit-appearance:none;-moz-appearance:none;appearance:none;pointer-events:auto;user-select:text;-webkit-user-select:text;-moz-user-select:text;-ms-user-select:text;cursor:text;width:100%;padding:1rem 1.2rem;border:2px solid #e0e0e0;border-radius:12px;font-size:1rem;transition:all .3s ease;background:#fff;color:#333;font-family:inherit;box-sizing:border-box;position:relative;z-index:25}.form-group 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h4{font-size:1.8rem;margin-bottom:1rem;color:#f44;letter-spacing:1px;font-weight:900;text-transform:uppercase}.footer-section h5{font-size:1.2rem;margin-bottom:1.5rem;color:#fff;letter-spacing:1px;text-transform:uppercase;font-weight:700;position:relative}.footer-section h5:after{content:"";position:absolute;bottom:-5px;left:0;width:30px;height:2px;background:#f44}.footer-section p{color:#ccc;line-height:1.6;font-size:1rem;margin-bottom:1.5rem}.footer-section ul{list-style:none;padding:0;margin:0}.footer-section ul li{margin-bottom:.8rem}.footer-section ul li a{color:#bbb;text-decoration:none;font-size:1rem;transition:all .3s ease;padding:.3rem 0;display:inline-block;position:relative}.footer-section ul li a:before{content:"";position:absolute;bottom:0;left:0;width:0;height:1px;background:#f44;transition:width .3s ease}.footer-section ul li a:hover{color:#f44;transform:translate(5px)}.footer-section ul li a:hover:before{width:100%}.footer-bottom{text-align:center;color:#999;font-size:.95rem;margin-top:3rem;border-top:1px solid #333;padding-top:2rem;position:relative;z-index:2}.mobile-menu-btn{display:none;flex-direction:column;background:none;border:none;cursor:pointer;padding:.5rem;z-index:101}.mobile-menu-btn span{width:25px;height:3px;background:#fff;margin:3px 0;transition:.3s;border-radius:2px}.user-greeting{color:#fff;font-weight:500;font-size:.9rem}@media (max-width: 768px){.mobile-menu-btn{display:flex}.header-container{position:relative}.nav{position:absolute;top:100%;left:0;right:0;background:#000000fa;flex-direction:column;padding:2rem;gap:1.5rem;transform:translateY(-100%);opacity:0;visibility:hidden;transition:all .3s ease;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-top:1px solid 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1rem;text-align:center}.hero:before{display:none}.hero-content{flex-direction:column}.hero-text{max-width:100%}.hero-content h1{font-size:2.8rem;margin-bottom:1rem}.hero-content p{font-size:1.1rem;margin-bottom:2rem;max-width:100%}.featured-categories{padding:4rem 0}.featured-categories h2{font-size:2rem;margin-bottom:2.5rem}.featured-products{padding:4rem 0}.category-grid{grid-template-columns:1fr;gap:1.5rem;padding:0 1rem}.products-grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem;padding:0 1rem}.footer{padding:3rem 0 1.5rem}.footer-container{grid-template-columns:1fr;gap:2rem;padding:0 1rem}.footer-section{text-align:center;padding:.5rem}.footer-section h4{font-size:1.5rem}.footer-section h5{font-size:1.1rem}.footer-section h5:after{left:50%;transform:translate(-50%)}}@media (max-width: 768px){.auth-container{padding:2rem;margin:1rem;max-width:90%}.auth-container h2{font-size:2rem;margin-bottom:1.5rem}.form-row{grid-template-columns:1fr;gap:0}.form-group{margin-bottom:1.2rem}.form-group label{font-size:.9rem;margin-bottom:.6rem}.form-group input{padding:.9rem 1rem;font-size:16px}.auth-form .btn{font-size:1rem;padding:1rem 1.5rem;letter-spacing:1px}}@media (max-width: 480px){.auth-page{padding:1rem}.auth-container{padding:1.5rem;border-radius:15px}.auth-container h2{font-size:1.8rem;letter-spacing:1px}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes slideInLeft{0%{opacity:0;transform:translate(-50px)}to{opacity:1;transform:translate(0)}}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}.hero-text{animation:slideInLeft .8s ease-out}.hero-content h1{animation:fadeInUp .8s ease-out .2s both}.hero-content p{animation:fadeInUp .8s ease-out .4s both}.btn-large{animation:fadeInUp .8s ease-out .6s both}.category-card{animation:fadeInUp .6s ease-out 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768px){.product-image-container{height:200px}.product-info,.product-actions{padding:12px}}.error-boundary{display:flex;justify-content:center;align-items:center;min-height:60vh;padding:2rem;background:linear-gradient(135deg,#ffeaa7,#fab1a0)}.error-boundary-content{background:#fff;padding:3rem;border-radius:15px;box-shadow:0 10px 30px #0000001a;text-align:center;max-width:600px;width:100%}.error-boundary-content h2{color:#e74c3c;margin-bottom:1rem;font-size:2rem}.error-boundary-content p{color:#666;margin-bottom:2rem;font-size:1.1rem}.error-details{background:#f8f9fa;border:1px solid #dee2e6;border-radius:8px;margin:1.5rem 0;text-align:left}.error-details summary{padding:1rem;cursor:pointer;font-weight:600;color:#495057}.error-details summary:hover{background:#e9ecef}.error-stack{padding:1rem;border-top:1px solid #dee2e6;font-family:Courier 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ease}.btn:hover:before{left:100%}.btn-primary{background:#f44;color:#fff;border:2px solid #ff4444;text-transform:uppercase;letter-spacing:1px;font-weight:700}.btn-primary:hover{background:#e63939;border-color:#e63939;transform:translateY(-2px);box-shadow:0 8px 25px #f446}.btn-secondary{background:transparent;color:#fff;border:2px solid #fff;text-transform:uppercase;letter-spacing:1px;font-weight:600}.btn-secondary:hover{background:#fff;color:#222;transform:translateY(-2px);box-shadow:0 8px 25px #ffffff4d}.btn-large{padding:18px 36px;font-size:18px;font-weight:700}.btn-full{width:100%;margin-bottom:15px}.loading{text-align:center;padding:60px 20px;font-size:18px;color:#7f8c8d;position:relative}.loading:after{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:40px;height:40px;border:3px solid #e9ecef;border-top:3px solid #667eea;border-radius:50%;animation:spin 1s linear infinite;margin-top:20px}@keyframes spin{0%{transform:translate(-50%,-50%) rotate(0)}to{transform:translate(-50%,-50%) rotate(360deg)}}.error{background:linear-gradient(135deg,#ff6b6b,#ee5a52);color:#fff;padding:20px;border-radius:15px;margin:20px 0;text-align:center;box-shadow:0 10px 30px #ee5a524d;border:none}.error-message{background:linear-gradient(135deg,#ff6b6b,#ee5a52);color:#fff;padding:15px 20px;border-radius:15px;margin-bottom:20px;text-align:center;box-shadow:0 8px 25px #ee5a524d;border:none}@media (max-width: 768px){.container{padding:0 15px}.btn{padding:12px 24px;font-size:16px}.btn-large{padding:16px 32px;font-size:17px}}