:root{--bg-color:#fff;--text-color:#1d1d1f;--primary-color:#06c;--secondary-bg:#f5f5f7;--border-color:#d2d2d7;--nav-bg:#fffc}.dark-mode{--bg-color:#000;--text-color:#f5f5f7;--primary-color:#2997ff;--secondary-bg:#1d1d1f;--border-color:#424245;--nav-bg:#000c}*{box-sizing:border-box;margin:0;padding:0}input,textarea,button,select{font-family:inherit}body{background-color:var(--bg-color);color:var(--text-color);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.5;transition:background-color .3s,color .3s;overflow-x:hidden}h1,h2,h3,h4,h5,h6{letter-spacing:-.015em;font-weight:600}a{color:var(--primary-color);text-decoration:none}button{cursor:pointer;background:0 0;border:none;font-family:inherit}nav{z-index:1000;background-color:var(--nav-bg);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;height:60px;padding:0 20px;transition:all .3s;display:flex;position:sticky;top:0}.mobile-menu-btn{color:var(--text-color);cursor:pointer;background:0 0;border:none;display:none}.nav-links{align-items:center;gap:2rem;display:flex}.nav-actions{align-items:center;gap:15px;display:flex}@media (width>=769px){.nav-links{flex:1;justify-content:center;position:relative}.nav-actions{position:absolute;right:0}}.nav-links a{color:var(--text-color);font-weight:500;text-decoration:none;transition:color .3s}.nav-links a:hover{color:var(--primary-color)}@media (width<=768px){.mobile-menu-btn{display:block}.nav-links{background-color:var(--bg-color);flex-direction:column;padding:20px;display:none;position:absolute;top:100%;left:0;right:0;box-shadow:0 10px 10px #0000001a}.nav-links.active{display:flex}}.hero{text-align:center;flex-direction:column;justify-content:center;align-items:center;min-height:100vh;padding-top:60px;display:flex;position:relative;overflow:hidden}.hero h1{margin-bottom:10px;font-size:4rem}.hero p{color:var(--primary-color);font-size:1.5rem}.hero-img{background-color:#fff;border-radius:30px;max-width:80%;margin-top:50px;padding:20px;box-shadow:0 20px 40px #0000001a}body.dark-mode .hero-img,body.dark-mode .product-card img,body.dark-mode .cart-item img{background-color:#fff;border-radius:20px;padding:10px}body:not(.dark-mode) .hero-img,body:not(.dark-mode) .product-card img,body:not(.dark-mode) .cart-item img{mix-blend-mode:multiply}.features{max-width:1200px;margin:0 auto;padding:100px 20px}.feature-item{text-align:center;flex-direction:column;align-items:center;margin-bottom:100px;display:flex}.feature-item h2{margin-bottom:20px;font-size:2.5rem}.feature-item p{max-width:600px;font-size:1.2rem}.section-title{text-align:center;margin-bottom:40px;font-size:2.5rem}.form-container{background-color:var(--secondary-bg);border-radius:18px;max-width:500px;margin:0 auto;padding:40px}.form-group{text-align:left;flex-direction:column;margin-bottom:20px;display:flex}.form-group label{margin-bottom:8px;font-weight:500}.form-group input{border:1px solid var(--border-color);background-color:var(--bg-color);color:var(--text-color);border-radius:8px;padding:12px 16px;font-size:16px}.btn{background-color:var(--primary-color);color:#fff;border-radius:20px;width:100%;padding:12px 24px;font-size:16px;font-weight:600;transition:opacity .2s}.btn:hover{opacity:.8}.chatbot-widget{z-index:1000;position:fixed;bottom:20px;right:20px}.chat-toggle{background-color:var(--primary-color);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:60px;height:60px;display:flex;box-shadow:0 4px 12px #00000026}.chat-window{background-color:var(--bg-color);border:1px solid var(--border-color);border-radius:12px;flex-direction:column;width:350px;height:450px;display:flex;position:absolute;bottom:80px;right:0;overflow:hidden;box-shadow:0 10px 30px #0000001a}.chat-header{background-color:var(--secondary-bg);border-bottom:1px solid var(--border-color);justify-content:space-between;padding:15px;font-weight:600;display:flex}.chat-messages{flex-direction:column;flex:1;gap:10px;padding:15px;display:flex;overflow-y:auto}.message{border-radius:16px;max-width:80%;padding:10px 14px;font-size:14px}.message.user{background-color:var(--primary-color);color:#fff;border-bottom-right-radius:4px;align-self:flex-end}.message.bot{background-color:var(--secondary-bg);color:var(--text-color);border-bottom-left-radius:4px;align-self:flex-start}.chat-input{border-top:1px solid var(--border-color);padding:10px;display:flex}.chat-input input{border:1px solid var(--border-color);background-color:var(--bg-color);color:var(--text-color);border-radius:20px;outline:none;flex:1;padding:10px}.chat-input button{color:var(--primary-color);margin-left:10px;padding:0 10px}.product-grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:30px;max-width:1200px;margin:0 auto;padding:40px 20px;display:grid}.product-card{background-color:var(--secondary-bg);text-align:center;border-radius:18px;padding:20px;transition:transform .3s}.product-card:hover{transform:translateY(-5px)}.skeleton{background:linear-gradient(90deg, var(--border-color) 25%, var(--bg-color) 50%, var(--border-color) 75%);background-size:200% 100%;border-radius:4px;animation:1.5s infinite loading}.skeleton-img{border-radius:10px;width:100%;height:250px}.skeleton-text{height:20px}.skeleton-btn{border-radius:20px;height:40px}@keyframes loading{0%{background-position:200% 0}to{background-position:-200% 0}}.product-card img{object-fit:contain;max-width:100%;height:200px;margin-bottom:20px}.product-actions{justify-content:space-between;gap:10px;margin-top:20px;display:flex}.btn-icon{background-color:var(--bg-color);color:var(--text-color);border:1px solid var(--border-color);border-radius:50%;justify-content:center;align-items:center;padding:8px;display:flex}.btn-icon.active{color:red;border-color:red}@media (width<=768px){.cart-total{font-size:1rem}}.specs-table{background:var(--bg-color);border:1px solid var(--border-color);border-radius:15px;overflow:hidden;box-shadow:0 10px 30px #0000001a}.spec-row{border-bottom:1px solid var(--border-color);padding:20px;display:flex}.spec-row:last-child{border-bottom:none}.spec-label{color:var(--text-color);flex:1;font-weight:700}.spec-value{color:var(--text-color);opacity:.8;flex:2}@media (width<=768px){.spec-row{flex-direction:column;gap:10px}.hero h1{font-size:2.5rem}.feature-item h2{font-size:2rem}}.cart-modal-overlay{z-index:2000;background-color:#00000080;justify-content:flex-end;width:100vw;height:100vh;display:flex;position:fixed;top:0;left:0}.cart-modal{background-color:var(--bg-color);flex-direction:column;width:400px;height:100vh;padding:20px;animation:.3s forwards slideIn;display:flex;box-shadow:-5px 0 15px #0000001a}@keyframes slideIn{0%{transform:translate(100%)}to{transform:translate(0)}}.cart-header{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;margin-bottom:20px;padding-bottom:15px;display:flex}.cart-items{flex:1;overflow-y:auto}.cart-item{border-bottom:1px solid var(--border-color);gap:15px;margin-bottom:15px;padding-bottom:15px;display:flex}.cart-item img{object-fit:contain;width:80px;height:80px}.cart-item-details{flex-direction:column;justify-content:center;display:flex}.cart-footer{border-top:1px solid var(--border-color);margin-top:auto;padding-top:20px}.cart-total{justify-content:space-between;margin-bottom:15px;font-size:1.2rem;font-weight:700;display:flex}.skeleton-chatbot .skeleton-dot{background-color:var(--text-color);opacity:.5;border-radius:50%;width:8px;height:8px;animation:1s infinite alternate pulse}@keyframes pulse{0%{opacity:.5;transform:scale(.8)}to{opacity:1;transform:scale(1.2)}}