:root{--katalog-primary:#f97316;--katalog-bg-dark:#0c1520;--katalog-card-bg:#ffffff0a;--katalog-card-border:#ffffff12;--katalog-text-primary:#fff;--katalog-text-secondary:#cbd5e1;--katalog-text-muted:#94a3b8;--katalog-sidebar-bg:#0c1520f2}.katalog-main{min-height:100vh;color:var(--katalog-text-primary);background:linear-gradient(135deg,#0c1520 0%,#1a2332 50%,#0f172a 100%);padding:16px;position:relative;overflow:hidden}.katalog-main:before{content:"";pointer-events:none;z-index:-1;background:radial-gradient(circle at 100% 0,#f9731614,#0000 60%),radial-gradient(circle at 0 100%,#3b82f60d,#0000 60%);position:fixed;inset:0}.katalog-container{grid-template-columns:280px 1fr;gap:20px;max-width:1440px;height:100%;margin:0 auto;display:grid}.katalog-sidebar{background:var(--katalog-sidebar-bg);-webkit-backdrop-filter:blur(8px);border:1px solid var(--katalog-card-border);border-radius:16px;flex-direction:column;gap:24px;height:fit-content;max-height:calc(100vh - 32px);padding:24px;display:flex;position:sticky;top:16px;overflow-y:auto}.katalog-sidebar::-webkit-scrollbar{width:6px}.katalog-sidebar::-webkit-scrollbar-track{background:0 0}.katalog-sidebar::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:3px}.katalog-sidebar::-webkit-scrollbar-thumb:hover{background:#fff3}.katalog-logo-area{border-bottom:1px solid var(--katalog-card-border);flex-direction:column;align-items:center;gap:12px;padding-bottom:12px;display:flex}.katalog-logo{border:1px solid var(--katalog-card-border);width:56px;height:56px;color:var(--katalog-primary);background:linear-gradient(135deg,#f9731626,#f973160d);border-radius:14px;justify-content:center;align-items:center;display:flex}.katalog-brand-name{text-align:center;letter-spacing:-.5px;margin:0;font-size:18px;font-weight:700}.katalog-search-box{border:1px solid var(--katalog-card-border);color:var(--katalog-text-muted);background:#ffffff0d;border-radius:10px;align-items:center;gap:10px;padding:10px 14px;transition:all .2s;display:flex}.katalog-search-box:focus-within{color:var(--katalog-text-secondary);background:#ffffff14;border-color:#f973164d}.katalog-search-input{color:var(--katalog-text-primary);background:0 0;border:none;outline:none;flex:1;font-family:system-ui,-apple-system,sans-serif;font-size:14px}.katalog-search-input::placeholder{color:var(--katalog-text-muted)}.katalog-nav-list{flex-direction:column;gap:8px;margin:0;padding:0;list-style:none;display:flex}.katalog-nav-item{border:1px solid var(--katalog-card-border);color:var(--katalog-text-secondary);cursor:pointer;text-align:left;background:0 0;border-radius:10px;align-items:center;gap:10px;padding:12px 14px;font-family:system-ui,-apple-system,sans-serif;font-size:13px;font-weight:600;transition:all .2s;display:flex}.katalog-nav-item:hover{color:var(--katalog-text-primary);background:#ffffff0f;border-color:#ffffff1f}.katalog-nav-item.active{color:var(--katalog-primary);background:linear-gradient(135deg,#f9731633,#f9731614);border-color:#f9731666}.katalog-nav-icon{color:currentColor;flex-shrink:0;justify-content:center;align-items:center;width:16px;height:16px;display:flex}.katalog-nav-label{white-space:nowrap;text-overflow:ellipsis;flex:1;overflow:hidden}.katalog-content{flex-direction:column;gap:20px;min-height:100%;display:flex}.katalog-product-card{background:var(--katalog-card-bg);-webkit-backdrop-filter:blur(12px);border:1px solid var(--katalog-card-border);border-radius:16px;grid-template-columns:1fr 1fr;align-items:center;gap:32px;min-height:480px;padding:40px;transition:all .3s;display:flex}.katalog-product-image{justify-content:center;align-items:center;display:flex}.katalog-image-placeholder{aspect-ratio:1;border:2px dashed var(--katalog-card-border);background:linear-gradient(135deg,#f973161f,#3b82f614);border-radius:16px;justify-content:center;align-items:center;width:100%;display:flex}.katalog-image-icon{color:var(--katalog-primary);opacity:.6;justify-content:center;align-items:center;display:flex}.katalog-product-info{flex-direction:column;gap:20px;display:flex}.katalog-product-header{justify-content:space-between;align-items:flex-start;gap:12px;display:flex}.katalog-product-header>div{flex:1}.katalog-brand{color:var(--katalog-primary);text-transform:uppercase;letter-spacing:.5px;margin:0;font-size:12px;font-weight:700}.katalog-product-name{letter-spacing:-.5px;margin:6px 0 0;font-size:28px;font-weight:800;line-height:1.2}.katalog-category-badge{color:var(--katalog-primary);text-transform:uppercase;letter-spacing:.3px;white-space:nowrap;background:#f973161a;border:1px solid #f973164d;border-radius:999px;padding:6px 12px;font-size:11px;font-weight:700;display:inline-block}.katalog-description{color:var(--katalog-text-secondary);margin:0;font-size:14px;line-height:1.6}.katalog-specs-grid{grid-template-columns:repeat(2,1fr);gap:12px;display:grid}.katalog-spec-item{border:1px solid var(--katalog-card-border);background:#ffffff08;border-radius:10px;flex-direction:column;gap:4px;padding:12px;transition:all .2s;display:flex}.katalog-spec-item:hover{background:#ffffff0f;border-color:#f973164d}.katalog-spec-label{color:var(--katalog-text-muted);text-transform:uppercase;letter-spacing:.3px;font-size:11px;font-weight:700}.katalog-spec-value{color:var(--katalog-text-primary);font-size:15px;font-weight:700}.katalog-controls{background:var(--katalog-card-bg);-webkit-backdrop-filter:blur(12px);border:1px solid var(--katalog-card-border);border-radius:16px;justify-content:center;align-items:center;gap:24px;padding:20px;display:flex}.katalog-btn{width:44px;height:44px;color:var(--katalog-primary);cursor:pointer;background:#f973161a;border:1px solid #f973164d;border-radius:10px;justify-content:center;align-items:center;font-family:system-ui,-apple-system,sans-serif;transition:all .2s;display:flex}.katalog-btn:hover{border-color:var(--katalog-primary);background:#f9731633;transform:translateY(-2px)}.katalog-btn:active{transform:translateY(0)}.katalog-btn-prev,.katalog-btn-next{transition:all .2s}.katalog-page-counter{color:var(--katalog-text-secondary);letter-spacing:1px;align-items:center;gap:6px;font-family:Menlo,Monaco,monospace;font-size:16px;font-weight:700;display:flex}.katalog-current-page{color:var(--katalog-primary);text-align:right;min-width:30px}.katalog-page-separator{color:var(--katalog-text-muted)}.katalog-total-pages{color:var(--katalog-text-muted);min-width:30px}.katalog-empty-state{background:var(--katalog-card-bg);-webkit-backdrop-filter:blur(12px);border:1px solid var(--katalog-card-border);min-height:400px;color:var(--katalog-text-muted);border-radius:16px;flex-direction:column;justify-content:center;align-items:center;gap:16px;padding:60px 40px;display:flex}.katalog-empty-state svg{color:var(--katalog-text-muted);opacity:.4}.katalog-empty-state p{margin:0;font-size:16px;font-weight:600}@media (max-width:1024px){.katalog-container{grid-template-columns:240px 1fr;gap:16px}.katalog-sidebar{gap:20px;padding:20px}.katalog-product-card{grid-template-columns:1fr;gap:24px;min-height:auto;padding:32px}.katalog-specs-grid{grid-template-columns:repeat(2,1fr)}.katalog-product-name{font-size:24px}}@media (max-width:768px){.katalog-main{padding:12px}.katalog-container{grid-template-columns:1fr;gap:16px}.katalog-sidebar{sticky:unset;max-height:unset;grid-template-columns:auto 1fr;grid-template-areas:"logo nav-list""search search";align-items:center;gap:16px;padding:16px;display:grid;position:relative}.katalog-logo-area{border:none;grid-area:logo;gap:8px;padding:0}.katalog-brand-name{font-size:16px}.katalog-logo{width:48px;height:48px}.katalog-nav-list{flex-direction:row;grid-area:nav-list;gap:6px;padding-bottom:4px;overflow-x:auto}.katalog-nav-list::-webkit-scrollbar{height:4px}.katalog-nav-item{flex-shrink:0;padding:8px 12px;font-size:12px}.katalog-search-box{grid-area:search}.katalog-product-card{gap:16px;padding:24px}.katalog-product-name{font-size:20px}.katalog-specs-grid{grid-template-columns:repeat(2,1fr);gap:10px}.katalog-spec-item{padding:10px}.katalog-controls{gap:16px;padding:16px}.katalog-btn{width:40px;height:40px}}@media (max-width:480px){.katalog-main{padding:8px}.katalog-container{gap:12px}.katalog-sidebar{grid-template-columns:1fr;grid-template-areas:"logo""search""nav-list";gap:12px;padding:12px}.katalog-logo-area{padding:0}.katalog-nav-list{flex-direction:column;gap:6px}.katalog-nav-item{width:100%}.katalog-product-card{gap:12px;min-height:auto;padding:16px}.katalog-product-image{min-height:240px}.katalog-image-placeholder{aspect-ratio:auto;min-height:240px}.katalog-product-name{font-size:18px}.katalog-description{font-size:13px}.katalog-specs-grid{grid-template-columns:1fr;gap:8px}.katalog-spec-item{padding:8px;font-size:12px}.katalog-controls{flex-wrap:wrap;gap:12px}.katalog-btn{width:36px;height:36px}.katalog-page-counter{order:-1;justify-content:center;width:100%;font-size:14px}}@media (prefers-reduced-motion:no-preference){.katalog-product-card{animation:.4s ease-out slideIn}@keyframes slideIn{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}}