*{box-sizing:border-box}html{font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:#17335d;background:#f6f7f9}body{margin:0}a{color:inherit}.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:24px;padding:12px max(20px,calc((100vw - 1320px)/2));background:rgba(255,255,255,.94);border-bottom:1px solid #e6e8ec;backdrop-filter:blur(12px)}.brand img{width:150px;max-height:62px;object-fit:contain}.nav{margin-left:auto;display:flex;gap:8px}.nav a{text-decoration:none;font-weight:700;padding:10px 13px;border-radius:999px}.nav a:hover{background:#eef3ff;color:#174ea6}.menu-btn{display:none;margin-left:auto;border:0;background:#eef1f5;border-radius:10px;padding:9px 12px;font-size:20px}.home,.catalog,.admin{max-width:1320px;margin:auto;padding:32px 22px 70px}.hero{min-height:430px;display:grid;align-items:center;padding:60px;border-radius:28px;background:linear-gradient(120deg,#0e2d5f,#1c62a8);color:white;box-shadow:0 25px 55px rgba(15,42,79,.2)}.hero>div{max-width:670px}.eyebrow{text-transform:uppercase;letter-spacing:.12em;font-size:12px;font-weight:800;opacity:.72}.hero h1,.catalog-head h1,.panel h1{font-size:clamp(34px,5vw,64px);line-height:1.02;margin:10px 0 16px}.hero p{font-size:19px;line-height:1.6;opacity:.9}.cta,.secondary{display:inline-flex;justify-content:center;align-items:center;border:0;border-radius:12px;padding:13px 18px;font-weight:800;cursor:pointer;text-decoration:none}.cta{background:#fff;color:#17335d}.panel .cta{background:#173f72;color:#fff}.secondary{background:#e9edf3;color:#253148}.category-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;margin-top:22px}.category-grid a{background:white;border:1px solid #e2e5ea;border-radius:18px;padding:25px;text-decoration:none;box-shadow:0 9px 26px rgba(21,33,54,.06)}.category-grid b{display:block;font-size:18px;margin-bottom:8px}.category-grid span{color:#617087;font-size:14px}.catalog-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin:8px 0 22px}.catalog-head h1{font-size:44px}.catalog-head p{color:#69778b}.search input{width:min(380px,80vw);padding:14px 16px;border:1px solid #d7dce3;border-radius:12px;background:white;font-size:16px}.subnav{display:flex;gap:9px;flex-wrap:wrap;margin:0 0 22px}.subnav a{background:#fff;border:1px solid #dfe3e9;border-radius:999px;padding:8px 12px;text-decoration:none;font-size:14px;font-weight:700}.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.card{background:white;border:1px solid #e1e5ea;border-radius:20px;overflow:hidden;box-shadow:0 12px 35px rgba(27,38,54,.07)}.slider{position:relative;aspect-ratio:4/3;background:#f1f3f6;overflow:hidden}.slide{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;background:white;opacity:0;transition:opacity .35s}.slide.active{opacity:1}.prev,.next{position:absolute;top:50%;transform:translateY(-50%);z-index:2;width:38px;height:38px;border-radius:50%;border:0;background:rgba(20,31,47,.72);color:white;font-size:26px;cursor:pointer}.prev{left:10px}.next{right:10px}.dots{position:absolute;z-index:3;left:0;right:0;bottom:9px;display:flex;justify-content:center;gap:5px}.dots button{width:7px;height:7px;padding:0;border:0;border-radius:50%;background:#aeb6c2}.dots button.active{background:#153f73}.card-body{padding:18px}.card-body h2{margin:0 0 12px;font-size:25px}.card table{width:100%;border-collapse:collapse}.card td{padding:9px 0;border-top:1px solid #edf0f3;vertical-align:top}.card td:first-child{padding-right:8px}.card small{display:block;color:#78869a;margin-top:3px}.price{text-align:right;white-space:nowrap;font-weight:800;color:#173f72}.stock{font-size:12px;text-align:right;color:#77859a}.notice{padding:15px 17px;border-radius:12px;background:#eef2f7;margin:18px 0}.notice.error{background:#fdecec;color:#8a2424}.notice.success{background:#ebf8ef;color:#21683a}footer{text-align:center;color:#7a8799;padding:28px;border-top:1px solid #e1e5ea;background:white}.panel{max-width:850px;margin:auto;background:white;border:1px solid #e1e5ea;border-radius:22px;padding:28px;box-shadow:0 18px 45px rgba(20,34,50,.08)}.panel.login{max-width:480px}.panel h1{font-size:40px}.panel-head{display:flex;align-items:start;justify-content:space-between;gap:20px}.admin-form,.login form{display:grid;gap:22px}.admin-form label,.login label{display:grid;gap:8px;font-weight:800}.admin-form input[type=text],.admin-form input[type=number],.login input{padding:13px 14px;border:1px solid #cfd5dd;border-radius:10px;font-size:16px}.admin-form small{font-weight:400;color:#69778b;line-height:1.55}.admin-form code{background:#f0f2f5;padding:2px 5px;border-radius:5px}.check{display:flex!important;grid-template-columns:auto 1fr!important;align-items:center}.actions{display:flex;gap:10px;flex-wrap:wrap}.preview{padding:14px;border-radius:10px;background:#f3f6f9}@media(max-width:1000px){.cards{grid-template-columns:repeat(2,1fr)}.category-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:720px){.menu-btn{display:block}.nav{display:none;position:absolute;left:0;right:0;top:78px;background:white;padding:14px 20px;flex-direction:column;border-bottom:1px solid #ddd}.nav.open{display:flex}.hero{padding:35px 25px;min-height:390px}.category-grid{grid-template-columns:1fr}.catalog-head{align-items:stretch;flex-direction:column}.search input{width:100%}.cards{grid-template-columns:1fr}.card-body h2{font-size:22px}.panel{padding:21px}}
.home-products{margin-top:54px}.diagnostics{margin-top:30px;padding-top:24px;border-top:1px solid #e1e5ea}.diagnostics h2{margin:0 0 10px}

/* Store branding */
.brand{display:flex;align-items:center;gap:14px;text-decoration:none;flex-shrink:0}
.brand img{width:170px;max-width:34vw;max-height:72px;object-fit:contain;display:block}
.brand-name{font-size:18px;font-weight:800;line-height:1.1;color:#17335d}
@media(max-width:900px){.brand-name{display:none}.brand img{width:150px;max-width:48vw}}

.home-categories{margin-top:0}
.home-products{margin-top:42px}
.home-more{display:flex;justify-content:center;margin-top:30px}
.catalog-cta{background:#173f72;color:#fff}
.price-check{display:grid;gap:6px;padding:12px 14px;background:#f3f6f9;border-radius:10px;font-size:14px}

/* Correct brand + hierarchy navigation */
.topbar{min-height:84px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;flex:0 0 auto}
.brand img{width:132px;max-width:none;max-height:62px;object-fit:contain;display:block}
.brand-name{display:block!important;font-size:20px;font-weight:800;line-height:1.1;color:#174ea6;white-space:nowrap}
.nav{align-items:center}
.nav-group{position:relative}
.nav-group>a,.order-link{display:inline-flex;text-decoration:none;font-weight:700;padding:10px 13px;border-radius:999px}
.nav-group>a:hover,.order-link:hover{background:#eef3ff;color:#174ea6}
.dropdown{position:absolute;top:100%;left:0;min-width:220px;background:#fff;border:1px solid #e1e5ea;border-radius:14px;padding:7px;box-shadow:0 16px 38px rgba(27,38,54,.14);opacity:0;visibility:hidden;transform:translateY(7px);transition:.16s;z-index:40}
.nav-group:hover .dropdown,.nav-group:focus-within .dropdown{opacity:1;visibility:visible;transform:none}
.dropdown a{display:block;text-decoration:none;padding:9px 11px;border-radius:9px;font-weight:650;white-space:nowrap}
.dropdown a:hover{background:#eef3ff;color:#174ea6}
.admin-form select{padding:13px 14px;border:1px solid #cfd5dd;border-radius:10px;font-size:16px;background:#fff}
@media(max-width:900px){.brand img{width:92px}.brand-name{font-size:16px;white-space:normal}.nav{top:84px}.nav-group{width:100%}.dropdown{position:static;display:none;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;padding:0 0 0 12px}.nav-group:focus-within .dropdown,.nav-group:hover .dropdown{display:block}.order-link{width:100%}}

.card-image-link{display:block;text-decoration:none}.card-thumb{cursor:pointer}.item-title-link{text-decoration:none}.item-title-link:hover{color:#174ea6}.view-item{display:inline-block;margin-top:14px;font-weight:800;color:#174ea6;text-decoration:none}.view-item:hover{text-decoration:underline}
.item-page{padding-top:24px}.item-breadcrumb{margin-bottom:18px;color:#6d7b8f;font-size:14px}.item-breadcrumb a{color:#174ea6;text-decoration:none}.item-detail{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(320px,.65fr);gap:38px;align-items:start}.detail-gallery{min-width:0}.detail-main{position:relative;background:#fff;border:1px solid #e1e5ea;border-radius:22px;overflow:hidden;aspect-ratio:4/3}.detail-slide{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;opacity:0;transition:opacity .25s;background:#fff}.detail-slide.active{opacity:1}.detail-prev,.detail-next{position:absolute;top:50%;transform:translateY(-50%);z-index:3;width:46px;height:46px;border:0;border-radius:50%;background:rgba(20,31,47,.75);color:#fff;font-size:30px;cursor:pointer}.detail-prev{left:14px}.detail-next{right:14px}.detail-thumbs{display:flex;gap:10px;overflow:auto;padding:12px 2px}.detail-thumbs button{width:86px;height:68px;flex:0 0 auto;padding:3px;border:2px solid transparent;border-radius:10px;background:#fff;cursor:pointer}.detail-thumbs button.active{border-color:#174ea6}.detail-thumbs img{width:100%;height:100%;object-fit:contain}.item-info{background:#fff;border:1px solid #e1e5ea;border-radius:22px;padding:26px;position:sticky;top:104px}.item-info h1{font-size:42px;margin:6px 0 20px}.item-lines{display:grid;gap:0;border-top:1px solid #edf0f3}.item-line{display:grid;grid-template-columns:1fr auto;gap:10px;padding:15px 0;border-bottom:1px solid #edf0f3;align-items:start}.item-line small{display:block;color:#78869a;margin-top:4px}.detail-price{font-weight:900;color:#173f72;font-size:18px}.detail-stock{grid-column:1/-1;color:#77859a;font-size:12px}.back-catalog{margin-top:22px}.card-thumb .slide{position:absolute}
@media(max-width:850px){.item-detail{grid-template-columns:1fr}.item-info{position:static}.detail-main{aspect-ratio:1/1}.item-info h1{font-size:34px}}

.card-thumb .slide{cursor:pointer}.card-thumb:hover .prev,.card-thumb:hover .next{opacity:1}.card-thumb .prev,.card-thumb .next{opacity:.88;transition:opacity .2s}.card-thumb .dots{pointer-events:auto}