*{box-sizing:border-box}
body{margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:#eef3f4;color:#173033}
.catalog-layout{display:grid;grid-template-columns:270px minmax(0,1fr);gap:20px;max-width:1500px;margin:0 auto;padding:24px 20px 36px}
.catalog-filter,.catalog-content,.detail-page{background:#fff;border:1px solid #d8e3e5;border-radius:14px}
.catalog-filter{padding:18px;height:max-content;position:sticky;top:90px}
.catalog-filter h2,.catalog-content h1{margin:0 0 16px}
.filter-group{margin-bottom:18px}
.filter-group>label{display:block;font-size:12px;font-weight:700;margin-bottom:7px;color:#52666b}
.check-list{max-height:240px;overflow:auto;border:1px solid #d8e3e5;border-radius:9px;padding:7px}
.check-row{display:flex;align-items:center;justify-content:flex-start;gap:10px;min-height:44px;padding:10px 12px;font-size:13px;cursor:pointer}
.check-row+.check-row{border-top:1px solid #e5ece9}
.check-row input[type="checkbox"]{width:20px;height:20px;min-width:20px;flex:0 0 20px;margin:0;accent-color:#087f4f}
.check-row span{display:block;min-width:0;flex:1;line-height:1.25}
.filter-actions button{width:100%;border:0;border-radius:8px;padding:10px;font-weight:700;cursor:pointer;background:#e8eff0;color:#29484d}
.catalog-content{padding:20px}
.catalog-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
.catalog-head h1,.catalog-head h2{margin:0}
.catalog-count{color:#64748b;font-size:13px}
.catalog-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.series-card{border:1px solid #d8e3e5;border-radius:14px;background:#fff;overflow:hidden;cursor:pointer;transition:.18s transform,.18s box-shadow,.18s border-color}
.series-card:hover,.series-card:focus{transform:translateY(-3px);box-shadow:0 12px 28px rgba(23,48,51,.12);border-color:#087f4f;outline:none}
.series-card-image{height:210px;background:linear-gradient(180deg,#f9fbfb,#eef5f3);display:flex;align-items:center;justify-content:center}
.series-card-image img{width:100%;height:100%;object-fit:contain;padding:20px}
.product-placeholder{width:94px;height:94px;display:grid;place-items:center;border-radius:24px;background:#eaf5f0;color:#087f4f;font-size:45px;font-weight:800}
.series-card-body{padding:16px}
.series-brand,.section-kicker{font-size:12px;color:#087f4f;font-weight:800;text-transform:uppercase;letter-spacing:.04em}
.series-card h2{margin:5px 0 4px;font-size:22px}
.series-title{color:#52666b;min-height:38px;font-size:13px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.series-card-footer{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-top:15px;padding-top:13px;border-top:1px solid #e3eaeb;font-size:13px}
.series-card-footer span{color:#087f4f;font-weight:700}
.detail-page{width:min(1280px,calc(100% - 36px));margin:18px auto;padding:22px}
.detail-back{display:inline-flex;align-items:center;gap:7px;margin-bottom:18px;padding:10px 13px;border:0;border-radius:8px;background:#e8eff0;color:#29484d;font-weight:700;cursor:pointer}
.series-hero{display:grid;grid-template-columns:minmax(280px,380px) 1fr;gap:28px;align-items:center;padding:8px 0 24px;border-bottom:1px solid #d8e3e5}
.series-hero-image{height:300px;display:flex;align-items:center;justify-content:center;border:1px solid #d8e3e5;border-radius:14px;background:#f8fbfb}
.series-hero-image img{width:100%;height:100%;object-fit:contain;padding:24px}
.series-hero-image .product-placeholder{width:120px;height:120px;font-size:58px;border-radius:30px}
.series-hero-copy h1{font-size:42px;margin:5px 0}
.series-hero-copy h2{font-size:21px;font-weight:500;color:#52666b;margin:0 0 18px;line-height:1.45}
.series-badges{display:flex;flex-wrap:wrap;gap:8px}
.series-badges span{background:#eaf5f0;color:#087f4f;border-radius:999px;padding:7px 10px;font-size:12px;font-weight:700}
.models-section{margin-top:28px}
.models-section .catalog-head{margin-bottom:16px}
.models-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:15px}
.model-card{border:1px solid #d8e3e5;border-radius:13px;background:#fff;padding:15px}
.model-card-head{display:flex;align-items:center;gap:14px;padding-bottom:13px;border-bottom:1px solid #e3eaeb}
.model-card-head img{width:78px;height:78px;flex:0 0 78px;object-fit:contain;background:#f7faf9;border-radius:9px;padding:6px}
.model-card-icon{width:78px;height:78px;flex:0 0 78px;display:grid;place-items:center;background:#f4f8f8;color:#087f4f;border-radius:9px;font-size:30px;font-weight:800}
.model-card h3{margin:3px 0 0;font-size:18px}
.model-name{margin-top:5px;color:#52666b;font-size:13px;font-weight:650;line-height:1.35}
.model-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:13px}
.model-field{background:#f4f8f8;border-radius:8px;padding:8px;min-width:0}
.model-field span{display:block;color:#64748b;font-size:10px}
.model-field b{display:block;font-size:12px;margin-top:2px;overflow-wrap:anywhere}
.model-project-btn{width:100%;margin-top:13px;border:0;border-radius:8px;padding:10px 12px;background:#087f4f;color:#fff;font-weight:800;cursor:pointer}.model-project-btn:hover{background:#06683f}
.model-card-footer{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:13px;padding-top:13px;border-top:1px solid #e3eaeb;font-size:13px}
.model-card-footer span{color:#52666b}
.model-card-footer b{color:#087f4f;font-size:15px}
.empty-state{padding:30px;color:#64748b;text-align:center;grid-column:1/-1}
[hidden]{display:none!important}
@media(max-width:1250px){.catalog-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:950px){.catalog-layout{grid-template-columns:1fr}.catalog-filter{position:static}.catalog-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.series-hero{grid-template-columns:1fr}.series-hero-image{height:250px}}
@media(max-width:620px){.catalog-layout{padding:10px;gap:12px}.catalog-filter,.catalog-content{padding:14px}.check-list{max-height:none;overflow:visible;padding:4px}.check-row{min-height:42px;padding:9px 10px}.catalog-grid,.models-grid{grid-template-columns:1fr}.model-grid{grid-template-columns:repeat(2,1fr)}.detail-page{width:calc(100% - 20px);padding:14px}.series-hero-copy h1{font-size:34px}}