@import url('https://fonts.googleapis.com/css2?family=Roboto:ital,wght@0,100..900;1,100..900&display=swap');

:root{
  --blue:#0057b8;
  --blue-dark:#072c55;
  --ink:#111820;
  --muted:#697581;
  --line:#d8dee3;
  --bg:#eef1f3;
  --paper:#fff;
  --radius:4px;
  --shadow:0 12px 34px rgba(12,31,52,.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Roboto",Arial,sans-serif;-webkit-font-smoothing:antialiased}
button,input{font:inherit}button{color:inherit}
.visually-hidden{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}

.catalog-app{min-height:100vh}
.catalog-top{display:grid;grid-template-columns:minmax(0,1fr) minmax(360px,600px);gap:48px;align-items:end;padding:28px 32px 30px;background:#fff;border-bottom:1px solid var(--line)}
.catalog-top__intro{display:grid;grid-template-columns:auto minmax(0,1fr);column-gap:22px;align-items:end}
.catalog-kicker{grid-column:1/-1;margin:0 0 8px;color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.14em;text-transform:uppercase}
.catalog-top h1{margin:0;font-size:clamp(42px,4.1vw,72px);font-weight:720;line-height:.96;letter-spacing:-.045em}
.catalog-lead{max-width:680px;margin:0 0 4px;color:var(--muted);font-size:18px;line-height:1.4}
.catalog-search{position:relative}
.catalog-search svg{position:absolute;left:20px;top:50%;width:22px;height:22px;transform:translateY(-50%);fill:none;stroke:var(--blue-dark);stroke-width:1.8;stroke-linecap:round}
.catalog-search input{width:100%;height:62px;padding:0 58px 0 56px;background:#f5f7f8;border:1px solid transparent;border-radius:var(--radius);outline:0;font-size:17px}
.catalog-search input:focus{background:#fff;border-color:rgba(0,87,184,.55);box-shadow:0 0 0 3px rgba(0,87,184,.09)}
.catalog-search button{position:absolute;right:12px;top:50%;width:38px;height:38px;padding:0 0 3px;border:0;border-radius:var(--radius);background:#e8ecef;color:#65717c;font-size:25px;line-height:1;transform:translateY(-50%);cursor:pointer}

.catalog-layout{display:grid;grid-template-columns:430px minmax(0,1fr);min-height:calc(100vh - 131px);background:#fff}
.catalog-menu{position:relative;padding:26px 18px 42px;color:#fff;background:var(--blue-dark);border-right:1px solid rgba(255,255,255,.08)}
.catalog-menu__caption{display:flex;justify-content:space-between;gap:16px;margin:0 10px 18px;color:rgba(255,255,255,.55);font-size:12px;font-weight:800;letter-spacing:.11em;text-transform:uppercase}
.catalog-menu__nav{display:grid;gap:5px}
.menu-item{position:relative;display:grid;grid-template-columns:50px minmax(0,1fr);column-gap:15px;width:100%;min-height:112px;padding:18px 18px;border:1px solid transparent;border-radius:var(--radius);background:transparent;color:rgba(255,255,255,.76);text-align:left;cursor:pointer;transition:.18s ease}
.menu-item:hover{background:rgba(255,255,255,.06);color:#fff}
.menu-item.is-active{background:var(--blue);border-color:rgba(255,255,255,.14);color:#fff;box-shadow:0 12px 26px rgba(0,21,48,.25)}
.menu-item__icon{grid-row:1/4;display:grid;place-items:center;width:50px;height:50px;margin-top:2px;border:1px solid rgba(255,255,255,.2);border-radius:var(--radius);color:#fff}
.menu-item__icon svg{width:25px;height:25px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.menu-item__number{font-size:11px;font-weight:800;letter-spacing:.13em;color:rgba(255,255,255,.48)}
.menu-item__title{display:block;margin-top:5px;font-size:clamp(20px,1.15vw,25px);font-weight:650;line-height:1.16;letter-spacing:-.025em}
.menu-item__count{display:block;margin-top:10px;color:rgba(255,255,255,.5);font-size:13px}
.menu-item.is-active .menu-item__count{color:rgba(255,255,255,.74)}

.catalog-stage{min-width:0;padding:24px 30px 70px;background:#fff}
.catalog-toolbar{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:18px;align-items:center;min-height:42px;margin-bottom:22px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.back-button{display:inline-flex;align-items:center;gap:6px;height:40px;padding:0 13px 0 10px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;font-weight:700;cursor:pointer}
.back-button:hover{border-color:var(--blue);color:var(--blue)}
.back-button svg{width:21px;height:21px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.breadcrumbs{display:flex;align-items:center;gap:9px;min-width:0;color:#7b858e;font-size:13px;white-space:nowrap;overflow:hidden}
.breadcrumbs button{padding:0;border:0;background:none;color:inherit;cursor:pointer}
.breadcrumbs button:hover{color:var(--blue)}
.breadcrumbs span{overflow:hidden;text-overflow:ellipsis}
.breadcrumbs i{font-style:normal;color:#b0b7bd}
.view-count{color:#7a858f;font-size:13px;white-space:nowrap}

.view-header{display:grid;grid-template-columns:minmax(0,1fr) 130px;gap:34px;align-items:end;margin-bottom:24px}
.view-header__number{margin:0 0 8px;color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.14em;text-transform:uppercase}
.view-header h2{max-width:1220px;margin:0;font-size:clamp(34px,3.1vw,58px);font-weight:690;line-height:1.03;letter-spacing:-.04em}
.view-header p{max-width:960px;margin:14px 0 0;color:var(--muted);font-size:18px;line-height:1.48}
.view-header__mark{display:grid;place-items:center;width:100%;height:74px;border-left:1px solid var(--line);color:var(--blue);font-size:34px;font-weight:300}

.view-media{margin-bottom:26px}
.section-carousel{position:relative;overflow:hidden;border-radius:var(--radius);background:#dfe7ed}
.section-carousel .carousel-inner,.section-carousel .carousel-item{height:clamp(250px,24vw,410px)}
.section-slide{position:relative;height:100%;padding:30px;background:linear-gradient(120deg,var(--tone-a,#dceafb),var(--tone-b,#f3f7fb));overflow:hidden}
.section-slide::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,44,85,.1),transparent 58%)}
.section-slide::after{content:"DOORHAN";position:absolute;right:2.5%;bottom:-5%;color:rgba(7,44,85,.08);font-size:clamp(62px,9vw,170px);font-weight:900;letter-spacing:-.07em}
.section-slide__grid{position:absolute;inset:0;background-image:linear-gradient(rgba(7,44,85,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(7,44,85,.07) 1px,transparent 1px);background-size:72px 72px;mask-image:linear-gradient(90deg,#000,transparent 80%)}
.section-slide__content{position:relative;z-index:2;display:flex;flex-direction:column;justify-content:space-between;height:100%;max-width:720px}
.section-slide__label{display:inline-flex;align-self:flex-start;padding:8px 10px;border:1px solid rgba(7,44,85,.2);border-radius:var(--radius);background:rgba(255,255,255,.64);color:#445463;font-size:11px;font-weight:800;letter-spacing:.11em;text-transform:uppercase}
.section-slide__title{margin:0;font-size:clamp(27px,2.5vw,48px);font-weight:670;line-height:1.04;letter-spacing:-.035em}
.section-slide__note{margin:12px 0 0;color:#5e6c78;font-size:16px;line-height:1.45}
.section-carousel .carousel-indicators{justify-content:flex-start;margin:0 0 22px 30px}
.section-carousel .carousel-indicators [data-bs-target]{width:36px;height:3px;margin:0 4px;border:0;background:#8d9aa5;opacity:.45}
.section-carousel .carousel-indicators .active{background:var(--blue);opacity:1}
.section-carousel .carousel-control-prev,.section-carousel .carousel-control-next{top:auto;bottom:18px;width:42px;height:42px;border:1px solid rgba(7,44,85,.16);border-radius:var(--radius);background:rgba(255,255,255,.84);opacity:1}
.section-carousel .carousel-control-prev{left:auto;right:78px}.section-carousel .carousel-control-next{right:30px}
.section-carousel .carousel-control-prev-icon,.section-carousel .carousel-control-next-icon{width:18px;height:18px;filter:invert(18%) sepia(18%) saturate(2317%) hue-rotate(173deg) brightness(87%) contrast(99%)}

.view-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,380px),1fr));gap:18px}
.catalog-card{position:relative;display:flex;flex-direction:column;min-height:390px;padding:0;border:1px solid var(--line);border-radius:var(--radius);background:#fff;text-align:left;overflow:hidden;cursor:pointer;transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}
.catalog-card:hover{transform:translateY(-3px);border-color:rgba(0,87,184,.45);box-shadow:var(--shadow)}
.catalog-card__visual{position:relative;display:flex;align-items:flex-end;min-height:185px;padding:22px;background:linear-gradient(135deg,var(--tone-a,#e8eef4),var(--tone-b,#f7f8f9));overflow:hidden}
.catalog-card__visual::after{content:"";position:absolute;width:280px;height:280px;right:-110px;top:-120px;border:1px solid rgba(7,44,85,.13);border-radius:50%}
.catalog-card__icon{position:absolute;left:50%;top:50%;z-index:1;display:grid;place-items:center;width:86px;height:86px;border:1px solid rgba(7,44,85,.16);border-radius:var(--radius);color:rgba(7,44,85,.68);transform:translate(-50%,-50%)}
.catalog-card__icon svg{width:42px;height:42px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.catalog-card__index{position:relative;z-index:1;color:rgba(7,44,85,.55);font-size:13px;font-weight:800;letter-spacing:.14em}
.catalog-card__type{position:absolute;z-index:1;top:20px;left:22px;padding:7px 9px;border:1px solid rgba(7,44,85,.12);border-radius:var(--radius);background:rgba(255,255,255,.7);color:#465461;font-size:11px;font-weight:750;text-transform:uppercase;letter-spacing:.09em}
.catalog-card__arrow{position:absolute;z-index:1;right:20px;bottom:19px;display:grid;place-items:center;width:48px;height:48px;border:1px solid rgba(7,44,85,.1);border-radius:var(--radius);background:#fff;color:var(--blue-dark);font-size:24px;transition:.18s ease}
.catalog-card:hover .catalog-card__arrow{background:var(--blue);border-color:var(--blue);color:#fff;transform:translate(2px,-2px)}
.catalog-card__body{display:flex;flex:1;flex-direction:column;padding:24px 25px 25px}
.catalog-card h3{margin:0;font-size:clamp(25px,1.65vw,34px);font-weight:650;line-height:1.1;letter-spacing:-.035em}
.catalog-card p{margin:14px 0 0;color:var(--muted);font-size:16px;line-height:1.48}
.catalog-card__meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:auto;padding-top:22px;color:#77828c;font-size:13px}
.catalog-card__meta span{padding:7px 9px;border-radius:var(--radius);background:#f0f3f5}
.catalog-card--product{min-height:420px}
.catalog-card--product .catalog-card__visual{min-height:205px}
.catalog-card--product h3{font-size:clamp(23px,1.45vw,31px)}
.catalog-card--product .product-code{display:block;margin-bottom:10px;color:var(--blue);font-size:14px;font-weight:800;letter-spacing:.07em}

.product-view{animation:fade .22s ease}
.product-hero{display:grid;grid-template-columns:minmax(0,.95fr) minmax(440px,1.05fr);gap:34px;margin-bottom:26px}
.product-hero__content{padding:16px 0 12px}
.product-label{display:inline-flex;padding:8px 10px;border:1px solid #cbdff4;border-radius:var(--radius);background:#edf5fd;color:var(--blue);font-size:11px;font-weight:800;letter-spacing:.1em;text-transform:uppercase}
.product-hero h2{margin:18px 0 0;font-size:clamp(38px,3.7vw,68px);font-weight:680;line-height:1;letter-spacing:-.045em}
.product-code-large{margin:18px 0 0;color:var(--blue);font-size:20px;font-weight:800;letter-spacing:.05em}
.product-intro{max-width:820px;margin:20px 0 0;color:var(--muted);font-size:19px;line-height:1.52}
.product-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:28px}
.btn-primary-dh,.btn-secondary-dh{height:52px;padding:0 20px;border-radius:var(--radius);font-weight:750;cursor:pointer}
.btn-primary-dh{border:1px solid var(--blue);background:var(--blue);color:#fff}
.btn-secondary-dh{border:1px solid var(--line);background:#fff}
.product-gallery{overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);background:#e4ebf0}
.product-gallery .carousel-inner,.product-gallery .carousel-item{height:clamp(390px,36vw,620px)}
.product-gallery__slide{position:relative;height:100%;padding:26px;background:linear-gradient(145deg,var(--tone-a,#dce4ea),var(--tone-b,#f4f6f7));overflow:hidden}
.product-gallery__slide::before{content:"";position:absolute;inset:8%;border:1px solid rgba(7,44,85,.14)}
.product-gallery__slide::after{content:"DOORHAN";position:absolute;right:5%;bottom:3%;color:rgba(7,44,85,.11);font-size:clamp(50px,6vw,100px);font-weight:900;letter-spacing:-.06em}
.product-gallery__caption{position:absolute;z-index:2;left:26px;top:24px;padding:8px 10px;border-radius:var(--radius);background:rgba(255,255,255,.78);color:#4f5d68;font-size:11px;font-weight:800;letter-spacing:.1em;text-transform:uppercase}
.product-gallery .carousel-indicators{margin-bottom:18px}
.product-gallery .carousel-indicators [data-bs-target]{width:34px;height:3px;border:0;background:#7d8993}
.product-gallery .carousel-control-prev,.product-gallery .carousel-control-next{width:48px}
.product-facts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:0 0 26px}
.product-fact{padding:20px;border:1px solid var(--line);border-radius:var(--radius)}
.product-fact span{display:block;color:#88919a;font-size:11px;font-weight:800;letter-spacing:.11em;text-transform:uppercase}
.product-fact strong{display:block;margin-top:10px;font-size:18px;line-height:1.28}
.product-sections{display:grid;gap:12px}
.product-section{padding:28px;border:1px solid var(--line);border-radius:var(--radius)}
.product-section__head{display:flex;justify-content:space-between;gap:20px;align-items:center}
.product-section h3{margin:0;font-size:27px;letter-spacing:-.03em}
.product-section__head span{color:#a0a8af;font-size:13px}
.product-section p{max-width:1050px;margin:16px 0 0;color:var(--muted);font-size:17px;line-height:1.58}
.feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-top:20px}
.feature-item{padding:18px;border-radius:var(--radius);background:#f2f5f6}
.feature-item strong{display:block;font-size:17px}.feature-item span{display:block;margin-top:8px;color:#77828b;line-height:1.45}
.spec-table{width:100%;margin-top:18px;border-collapse:collapse}.spec-table th,.spec-table td{padding:15px 0;border-top:1px solid var(--line);text-align:left;font-size:15px}.spec-table th{width:48%;color:#717d87;font-weight:500}.spec-table td{font-weight:700}
.document-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;margin-top:18px}.document-item{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:15px 16px;border-radius:var(--radius);background:#f2f5f6;font-weight:650}.document-item span:last-child{color:var(--blue)}
.empty-view{padding:90px 20px;text-align:center}.empty-view span{font-size:80px;font-weight:250;color:#c8ced3}.empty-view h2{font-size:36px}.empty-view p{color:var(--muted);font-size:17px}
@keyframes fade{from{opacity:0;transform:translateY(5px)}to{opacity:1;transform:none}}
body[data-tone="blue"]{--tone-a:#dceafb;--tone-b:#f2f7fd}body[data-tone="graphite"]{--tone-a:#dfe3e6;--tone-b:#f3f5f6}body[data-tone="forest"]{--tone-a:#dfe9e4;--tone-b:#f3f7f5}body[data-tone="sand"]{--tone-a:#ece7dc;--tone-b:#f8f5ee}body[data-tone="steel"]{--tone-a:#dce3e8;--tone-b:#f3f5f6}body[data-tone="violet"]{--tone-a:#e7e1ef;--tone-b:#f7f4fa}

@media(min-width:1800px){
  .catalog-layout{grid-template-columns:470px minmax(0,1fr)}
  .catalog-stage{padding-left:38px;padding-right:38px}
  .view-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .catalog-card{min-height:410px}
}
@media(max-width:1280px){
  .catalog-top{grid-template-columns:1fr 430px;padding-left:24px;padding-right:24px}
  .catalog-top__intro{display:block}.catalog-lead{margin-top:10px}
  .catalog-layout{grid-template-columns:350px minmax(0,1fr)}
  .menu-item{grid-template-columns:44px minmax(0,1fr);padding:16px 14px}.menu-item__icon{width:44px;height:44px}.menu-item__title{font-size:20px}
  .catalog-stage{padding:22px 22px 55px}
  .product-hero{grid-template-columns:1fr}.product-gallery .carousel-inner,.product-gallery .carousel-item{height:480px}
}
@media(max-width:920px){
  .catalog-top{grid-template-columns:1fr;gap:20px;padding:24px 18px}
  .catalog-top h1{font-size:50px}.catalog-lead{font-size:17px}
  .catalog-layout{display:block}
  .catalog-menu{padding:18px}
  .catalog-menu__nav{display:flex;gap:8px;overflow:auto;padding-bottom:4px}
  .menu-item{flex:0 0 310px;min-height:116px}
  .catalog-stage{padding:22px 18px 48px}
  .view-header{grid-template-columns:1fr}.view-header__mark{display:none}
  .view-header h2{font-size:42px}
  .feature-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:620px){
  .catalog-top{padding:22px 14px 18px}.catalog-top h1{font-size:42px}.catalog-kicker{font-size:11px}.catalog-search input{height:56px}
  .catalog-menu{padding:14px}.catalog-menu__caption{margin-left:3px;margin-right:3px}.menu-item{flex-basis:280px}
  .catalog-stage{padding:18px 14px 40px}.catalog-toolbar{grid-template-columns:auto minmax(0,1fr)}.view-count{display:none}.breadcrumbs{font-size:12px}
  .view-header h2{font-size:34px}.view-header p{font-size:16px}
  .section-carousel .carousel-inner,.section-carousel .carousel-item{height:270px}.section-slide{padding:20px}.section-slide__title{font-size:28px}.section-slide__note{font-size:14px}.section-carousel .carousel-indicators{margin-left:20px}.section-carousel .carousel-control-prev{right:68px}.section-carousel .carousel-control-next{right:20px}
  .view-grid{gap:12px}.catalog-card{min-height:350px}.catalog-card__visual{min-height:165px}.catalog-card__body{padding:21px}.catalog-card h3{font-size:26px}
  .product-hero h2{font-size:38px}.product-gallery .carousel-inner,.product-gallery .carousel-item{height:330px}.product-facts{grid-template-columns:1fr}.feature-grid{grid-template-columns:1fr}.document-list{grid-template-columns:1fr}.product-section{padding:22px 18px}.product-section h3{font-size:24px}
}


/* Server-rendered catalog additions */
a{color:inherit}
.catalog-top h1 a,.menu-item,.catalog-card,.back-button,.breadcrumbs a,.btn-primary-dh,.btn-secondary-dh{text-decoration:none}
.catalog-top h1 a{display:inline-block}
.menu-item,.catalog-card{color:inherit}
.breadcrumbs a{color:inherit}
.back-button{color:inherit}
.btn-primary-dh,.btn-secondary-dh{display:inline-flex;align-items:center;justify-content:center}
.btn-primary-dh:hover{background:#004b9f;border-color:#004b9f;color:#fff}
.btn-secondary-dh:hover{border-color:var(--blue);color:var(--blue)}
.catalog-subheading{margin:34px 0 18px;font-size:30px;letter-spacing:-.03em}
.error-view .btn-primary-dh{margin-top:18px}
.error-details{max-width:100%;margin:30px auto 0;padding:20px;border:1px solid var(--line);background:#f5f7f8;text-align:left;white-space:pre-wrap;overflow-wrap:anywhere}