:root{--color-navy: #0F2D52;--color-navy-dark: #0A203C;--color-navy-light: #183C6A;--color-yellow: #F4B400;--color-yellow-hover: #E0A400;--color-yellow-light: #FFF8E6;--color-white: #FFFFFF;--color-topbar-bg: #E9ECEF;--color-bg-light: #F7F8FA;--color-icon-bg: #E6EEF8;--color-text-main: #333333;--color-text-muted: #666666;--color-text-light: #999999;--color-border: #EEEEEE;--color-border-hover: #F4B400;--color-success: #10B981;--color-danger: #FF4444;--color-danger-bg: #FEF2F2;--radius-sm: 4px;--radius-md: 8px;--radius-cat: 10px;--radius-lg: 12px;--radius-xl: 16px;--radius-full: 9999px;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .04);--shadow-md: 0 4px 12px rgba(0, 0, 0, .05);--shadow-lg: 0 10px 25px rgba(15, 45, 82, .1);--shadow-xl: 0 20px 40px rgba(15, 45, 82, .16);--transition-fast: all .2s ease-in-out;--transition-normal: all .3s ease-in-out;--font-main: "Helvetica Neue", Arial, "Inter", sans-serif;--font-heading: "Montserrat", "Helvetica Neue", Arial, sans-serif;--header-height: 140px;--container-width: 1024px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth;-webkit-tap-highlight-color:transparent}body{font-family:var(--font-main);background-color:var(--color-bg-light);color:var(--color-text-main);line-height:1.4;overflow-x:hidden;padding-bottom:70px}@media(min-width:992px){body{padding-bottom:0}}a{color:inherit;text-decoration:none;transition:var(--transition-fast)}ul,ol{list-style:none}img{max-width:100%;height:auto;display:block;object-fit:cover}button,input,select,textarea{font-family:inherit;font-size:inherit;outline:none;border:none;background:none}button{cursor:pointer;-webkit-user-select:none;user-select:none}.container{width:100%;max-width:var(--container-width);margin:0 auto;padding:0 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span{color:var(--color-yellow)}.logo-subtitle{font-size:10px;color:var(--color-text-muted);font-weight:600;text-transform:uppercase;letter-spacing:.5px;margin-top:2px}.header-info-group{display:flex;align-items:center;gap:24px;font-size:12px}.header-info-card{display:flex;align-items:center;gap:10px}.header-info-icon{width:32px;height:32px;background-color:var(--color-icon-bg);border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;color:var(--color-navy);font-weight:700;flex-shrink:0}.header-info-details{display:flex;flex-direction:column}.header-info-title{font-size:10px;color:var(--color-text-light);font-weight:500}.header-info-val{font-size:12px;font-weight:700;color:var(--color-navy);line-height:1.2}.header-info-sub{font-size:10px;color:var(--color-text-muted)}.header-actions{display:flex;align-items:center;gap:15px}.header-action-btn{display:flex;flex-direction:column;align-items:center;gap:3px;color:var(--color-navy);padding:6px 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rgba(255,255,255,.8);color:var(--color-white);font-weight:600;font-size:12px;padding:8px 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0}.categories-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-bottom:15px}.category-card{background-color:var(--color-white);border-radius:var(--radius-cat);padding:10px;text-align:center;box-shadow:0 2px 8px #0000000a;transition:transform .2s,border-color .2s;border:1px solid transparent;display:flex;flex-direction:column;align-items:center;justify-content:center;text-decoration:none;position:relative}.category-card:hover{border-color:var(--color-yellow);transform:translateY(-2px)}.category-img-wrapper{height:150px;width:100%;overflow:hidden;display:flex;align-items:center;justify-content:center;margin-bottom:6px;position:relative}.category-img{max-height:100%;width:auto;object-fit:contain;transition:transform .2s,opacity .2s}.category-card:hover 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transparent}.product-card:hover{border-color:var(--color-yellow)}.product-badges{position:absolute;top:10px;right:10px;display:flex;flex-direction:column;gap:4px;z-index:5}.product-actions-overlay{position:absolute;top:10px;left:10px;display:flex;flex-direction:column;gap:6px;z-index:5}.icon-action-btn{width:28px;height:28px;background-color:#ffffffe6;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;color:var(--color-text-muted);box-shadow:var(--shadow-sm);border:1px solid var(--color-border);transition:var(--transition-fast)}.icon-action-btn:hover,.icon-action-btn.active{background-color:var(--color-yellow);color:var(--color-navy);border-color:var(--color-yellow)}.product-image-container{height:110px;background-color:#f0f0f0;border-radius:var(--radius-md);margin-bottom:10px;display:flex;align-items:center;justify-content:center;padding:8px;overflow:hidden}.product-image{max-height:100%;max-width:100%;object-fit:contain}.product-category-name{font-size:10px;color:var(--color-text-light);margin-bottom:2px}.product-title{font-size:13px;font-weight:500;color:var(--color-text-main);height:32px;overflow:hidden;margin-bottom:8px;line-height:1.25}.product-price-box{display:flex;align-items:baseline;gap:6px;margin-bottom:10px;margin-top:auto}.price-current{font-size:16px;font-weight:800;color:var(--color-navy)}.price-old{font-size:11px;color:var(--color-text-light);text-decoration:line-through}.price-unit{font-size:10px;color:var(--color-text-muted)}.product-card-controls{display:flex;align-items:center;gap:6px}.qty-selector{display:flex;align-items:center;border:1px solid var(--color-border);border-radius:var(--radius-md);overflow:hidden;background-color:var(--color-bg-light);height:34px}.qty-btn{width:26px;height:100%;display:flex;align-items:center;justify-content:center;font-weight:700;color:var(--color-navy)}.qty-input{width:28px;text-align:center;font-weight:700;font-size:11px;color:var(--color-navy)}.add-to-cart-btn{background-color:var(--color-yellow);color:var(--color-navy);border:none;width:100%;padding:8px;border-radius:var(--radius-md);font-weight:700;font-size:11px;text-transform:uppercase;display:flex;align-items:center;justify-content:center;gap:4px;transition:var(--transition-fast)}.add-to-cart-btn:hover{background-color:var(--color-yellow-hover)}.add-to-cart-btn.added{background-color:var(--color-navy);color:var(--color-yellow)}.advantages-section{padding:15px 0;border-top:1px solid #EEEEEE;background-color:var(--color-white)}.advantages-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.advantage-card{display:flex;align-items:center;gap:10px}.advantage-icon{width:32px;height:32px;background-color:var(--color-icon-bg);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--color-navy);font-weight:700;flex-shrink:0}.advantage-info h4{font-size:11px;font-weight:600;color:var(--color-navy);line-height:1.2}.advantage-info p{font-size:10px;color:var(--color-text-muted);line-height:1.2}.calculator-section{padding:30px 0;background-color:var(--color-navy);color:var(--color-white)}.calculator-container{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:center}.calculator-info h2{color:var(--color-white);font-size:1.5rem;margin-bottom:10px}.calculator-info 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var(--color-border);border-radius:var(--radius-md);font-size:.85rem;color:var(--color-text-main);transition:var(--transition-fast)}.form-input:focus,.form-select:focus,.form-textarea:focus{border-color:var(--color-navy);background-color:var(--color-white)}.site-footer{background-color:var(--color-navy);color:#ffffffb3;padding:20px 0;margin-top:auto;font-size:11px}.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;margin-bottom:20px}.footer-col h4{color:var(--color-white);margin:0 0 10px;font-size:13px}.footer-links{display:flex;flex-direction:column;gap:6px}.footer-links a{color:#ffffffb3;transition:var(--transition-fast)}.footer-links a:hover{color:var(--color-yellow)}.footer-contact-list{display:flex;flex-direction:column;gap:8px}.footer-contact-item{display:flex;align-items:flex-start;gap:8px}.footer-contact-item svg{color:var(--color-yellow);flex-shrink:0;margin-top:1px}.social-links{display:flex;gap:10px;margin-top:10px}.social-btn{width:26px;height:26px;background-color:#ffffff1a;border-radius:4px;display:flex;align-items:center;justify-content:center;color:var(--color-white);transition:var(--transition-fast)}.social-btn:hover{background-color:var(--color-yellow);color:var(--color-navy)}.footer-bottom{border-top:1px solid 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var(--color-border);display:flex;align-items:center;justify-content:space-between}.modal-title{font-size:1.1rem;color:var(--color-navy)}.modal-close-btn{width:28px;height:28px;border-radius:var(--radius-full);background-color:var(--color-bg-light);display:flex;align-items:center;justify-content:center;color:var(--color-text-muted);transition:var(--transition-fast)}.modal-close-btn:hover{background-color:var(--color-border);color:var(--color-navy)}.modal-body{padding:20px}.spec-table{width:100%;border-collapse:collapse;margin-top:12px;font-size:.8rem}.spec-table th,.spec-table td{padding:8px 10px;border:1px solid var(--color-border);text-align:left}.spec-table th{background-color:var(--color-bg-light);font-weight:700;color:var(--color-navy)}.cart-drawer{position:fixed;top:0;right:0;bottom:0;width:100%;max-width:380px;background-color:var(--color-white);box-shadow:var(--shadow-xl);z-index:1100;transform:translate(100%);transition:transform .3s ease;display:flex;flex-direction:column}.cart-drawer.active{transform:translate(0)}.cart-drawer-header{padding:16px 20px;border-bottom:1px solid var(--color-border);display:flex;align-items:center;justify-content:space-between;background-color:var(--color-navy);color:var(--color-white)}.cart-drawer-header h3{color:var(--color-white);font-size:1.05rem}.cart-items-list{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:12px}.cart-item{display:flex;gap:12px;padding-bottom:12px;border-bottom:1px solid var(--color-border);position:relative}.cart-item-img{width:60px;height:60px;object-fit:contain;border-radius:var(--radius-md);background-color:var(--color-bg-light);padding:4px;border:1px solid var(--color-border)}.cart-item-details{flex:1;display:flex;flex-direction:column}.cart-item-title{font-size:.82rem;font-weight:700;color:var(--color-navy);margin-bottom:2px}.cart-item-price{font-size:.85rem;font-weight:800;color:var(--color-navy);margin-bottom:6px}.cart-item-remove{color:var(--color-danger);cursor:pointer;padding:2px}.cart-drawer-footer{padding:16px;border-top:1px solid var(--color-border);background-color:var(--color-bg-light)}.cart-total-row{display:flex;justify-content:space-between;align-items:center;font-size:1rem;font-weight:800;color:var(--color-navy);margin-bottom:12px}.toast-container{position:fixed;bottom:80px;right:20px;z-index:2000;display:flex;flex-direction:column;gap:8px}.toast{background-color:var(--color-navy);color:var(--color-white);padding:10px 16px;border-radius:var(--radius-md);box-shadow:var(--shadow-lg);display:flex;align-items:center;gap:10px;border-left:4px solid var(--color-yellow);font-size:.85rem;animation:slideInRight .3s ease forwards}@keyframes slideInRight{0%{opacity:0;transform:translate(80px)}to{opacity:1;transform:translate(0)}}.bottom-nav{position:fixed;bottom:0;left:0;right:0;background-color:var(--color-navy);display:flex;justify-content:space-around;align-items:center;height:60px;z-index:990;box-shadow:0 -4px 16px #0f2d5226;border-top:1px solid rgba(255,255,255,.1)}.bottom-nav-item{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;color:#94a3b8;font-size:.7rem;font-weight:600;flex:1;height:100%;position:relative;transition:var(--transition-fast)}.bottom-nav-item.active,.bottom-nav-item:hover{color:var(--color-yellow)}.bottom-nav-item .nav-badge{position:absolute;top:6px;right:calc(50% - 16px);background-color:var(--color-yellow);color:var(--color-navy);font-size:.65rem;font-weight:800;width:16px;height:16px;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center}.floating-cart-btn{position:fixed;bottom:75px;right:16px;width:54px;height:54px;background-color:var(--color-yellow);color:var(--color-navy);border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-xl);z-index:980;transition:var(--transition-fast);border:2px solid var(--color-navy)}.floating-cart-btn:hover{transform:scale(1.08);background-color:var(--color-yellow-hover)}.floating-cart-btn .floating-badge{position:absolute;top:-4px;right:-4px;background-color:var(--color-navy);color:var(--color-yellow);font-size:.72rem;font-weight:800;width:22px;height:22px;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;border:2px solid var(--color-yellow)}.mobile-drawer-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background-color:#0f2d5299;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:1200;opacity:0;visibility:hidden;transition:var(--transition-fast)}.mobile-drawer-overlay.active{opacity:1;visibility:visible}.mobile-drawer{position:fixed;top:0;left:0;bottom:0;width:300px;background-color:var(--color-white);z-index:1210;transform:translate(-100%);transition:transform .3s cubic-bezier(.4,0,.2,1);display:flex;flex-direction:column;box-shadow:var(--shadow-xl)}.mobile-drawer-overlay.active .mobile-drawer{transform:translate(0)}.mobile-drawer-header{background-color:var(--color-navy);padding:20px;color:var(--color-white);display:flex;align-items:center;justify-content:space-between}.mobile-drawer-body{flex:1;overflow-y:auto;padding:16px 0}.mobile-menu-list{display:flex;flex-direction:column}.mobile-menu-item{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;color:var(--color-navy);font-weight:600;border-bottom:1px solid var(--color-border);transition:var(--transition-fast)}.mobile-menu-item:hover{background-color:var(--color-bg-light);color:var(--color-yellow-hover)}@media(min-width:1200px){.mobile-only{display:none!important}}@media(max-width:1024px){.header-info-group,.nav-menu{display:none}.categories-grid,.products-grid,.advantages-grid,.footer-grid{grid-template-columns:repeat(2,1fr)}.calculator-container{grid-template-columns:1fr}.slider-wrapper{height:360px}.slide-title{font-size:1.75rem}}@media(max-width:768px){.top-bar{display:none}.main-header{padding:12px 0}.main-header .container{gap:12px}.header-actions .header-action-btn:not(.header-cart-btn){display:none}.cart-text-box{display:none}.header-cart-btn{padding:8px 10px}.nav-bar .container{padding:0 12px}.search-form{max-width:100%}.search-category-select,.catalog-btn span{display:none}.catalog-btn{padding:0 14px}.slider-wrapper{height:320px;border-radius:var(--radius-md)}.slide-content{padding:24px 20px}.slide-title{font-size:1.4rem}.slide-desc{font-size:.88rem;margin-bottom:16px}.categories-grid{grid-template-columns:1fr;gap:14px}.products-grid{grid-template-columns:1fr;gap:16px}.products-header{flex-direction:column;align-items:flex-start}.product-tabs{width:100%;overflow-x:auto;white-space:nowrap}.advantages-grid{grid-template-columns:1fr;gap:14px}.calc-form-card{padding:20px}.footer-grid{grid-template-columns:1fr;gap:28px}.footer-bottom{flex-direction:column;text-align:center}}@media(max-width:991px){.desktop-only{display:none!important}}@media(min-width:992px){.mobile-only{display:none!important}}