:root{
    --ink:#181B2E; --bronze:#2C3E80; --bronze-dark:#1E2C5E; --stone:#6C7088;
    --beige:#EEEFF6; --white:#FFFFFF; --text:#5B6270;
    --line:#E2E2EE; --line-soft:#ECECF5;
    --r-sm:8px; --r-md:12px; --r-lg:16px; --r-pill:999px;
    --shadow-xs:0 1px 2px rgba(26,26,26,.04);
    --shadow-sm:0 6px 18px rgba(26,26,26,.06);
    --shadow-md:0 18px 50px rgba(26,26,26,.10);
    --container:1320px; --gut:clamp(20px,4vw,56px);
    --ease:cubic-bezier(.22,.61,.36,1);
    --f-head:'Montserrat',system-ui,sans-serif;
    --f-body:'Inter',system-ui,sans-serif;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{margin:0;font-family:var(--f-body);color:var(--text);background:var(--white);
    font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased;}
  h1,h2,h3,h4{font-family:var(--f-head);color:var(--ink);margin:0;line-height:1.14;letter-spacing:-.01em;font-weight:700;}
  p{margin:0;} a{color:inherit;text-decoration:none;} img{display:block;max-width:100%;}
  .i{width:1.1em;height:1.1em;display:inline-block;vertical-align:-.15em;stroke-width:1.6;}
  .container{max-width:var(--container);margin-inline:auto;padding-inline:var(--gut);}
  .eyebrow{font-family:var(--f-head);font-size:12px;font-weight:600;letter-spacing:.22em;text-transform:uppercase;color:var(--bronze);}

  .btn{display:inline-flex;align-items:center;justify-content:center;gap:.6em;font-family:var(--f-head);font-weight:600;
    font-size:15px;cursor:pointer;border-radius:var(--r-pill);padding:15px 30px;border:1.5px solid transparent;
    transition:all .2s var(--ease);white-space:nowrap;}
  .btn--bronze{background:var(--bronze);color:#fff;}
  .btn--bronze:hover{background:var(--bronze-dark);transform:translateY(-1px);box-shadow:var(--shadow-sm);}
  .btn--outline{background:transparent;border-color:var(--ink);color:var(--ink);}
  .btn--outline:hover{background:var(--ink);color:#fff;}
  .btn--outline-light{background:transparent;border-color:rgba(255,255,255,.6);color:#fff;}
  .btn--outline-light:hover{background:var(--white);color:var(--ink);border-color:#fff;}
  .btn--sm{padding:10px 20px;font-size:14px;}

  /* Material textures */
  .mat{position:relative;overflow:hidden;background-color:var(--beige);}
  .mat::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;mix-blend-mode:multiply;
    background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.16'/%3E%3C/svg%3E");}
  .mat--fakt{background-image:repeating-linear-gradient(95deg,rgba(255,255,255,0) 0,rgba(255,255,255,.28) 3px,rgba(120,130,165,.06) 11px,rgba(255,255,255,0) 22px,rgba(120,130,165,.09) 34px,rgba(255,255,255,0) 46px),radial-gradient(120% 80% at 22% 8%,rgba(255,255,255,.55),transparent 60%),radial-gradient(120% 90% at 88% 95%,rgba(44,62,128,.20),transparent 55%),linear-gradient(160deg,#EDEFF5,#C9D0E0);}
  .mat--fakt2{background-image:repeating-linear-gradient(88deg,rgba(255,255,255,0) 0,rgba(255,255,255,.22) 4px,rgba(120,130,165,.07) 13px,rgba(255,255,255,0) 26px),radial-gradient(100% 90% at 70% 20%,rgba(255,255,255,.5),transparent 60%),linear-gradient(150deg,#E2E6EF,#BFC6D8);}
  .mat--beton{background-image:radial-gradient(55% 50% at 28% 26%,rgba(255,255,255,.20),transparent 60%),radial-gradient(50% 55% at 72% 72%,rgba(20,26,46,.14),transparent 60%),radial-gradient(40% 40% at 60% 30%,rgba(20,26,46,.06),transparent 60%),linear-gradient(160deg,#BCC2CE,#969EAE);}
  .mat--marmar{background-image:linear-gradient(122deg,transparent 36%,rgba(90,100,135,.30) 38%,rgba(90,100,135,.04) 40%,transparent 44%),linear-gradient(108deg,transparent 58%,rgba(44,62,128,.22) 60%,transparent 63%),linear-gradient(135deg,transparent 70%,rgba(90,100,135,.16) 72%,transparent 75%),linear-gradient(160deg,#F2F3F8,#D8DCE8);}
  .mat--interior{background-image:radial-gradient(90% 75% at 72% 16%,rgba(245,248,255,.7),transparent 58%),linear-gradient(180deg,#E2E6F0 0%,#D2D8E6 50%,#C2CAD9 50%,#AEB7CA 100%);}
  .mat--interior::before{content:"";position:absolute;inset:0;box-shadow:inset 0 0 120px rgba(26,26,26,.16);}
  .mat--sadaf{background-image:radial-gradient(80% 70% at 30% 20%,rgba(255,255,255,.6),transparent 55%),conic-gradient(from 200deg at 55% 60%,#EDEFF6,#E6ECF4,#ECEEF6,#E6E9F4,#EDEFF6),linear-gradient(160deg,#F1F3F9,#DEE3EE);background-blend-mode:screen,normal,normal;}
  .mat--dark{background-image:radial-gradient(80% 80% at 30% 20%,rgba(44,62,128,.34),transparent 60%),linear-gradient(150deg,#1B2244,#0D1126);}

  /* Header */
  header.hdr{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.88);backdrop-filter:blur(14px) saturate(1.2);border-bottom:1px solid var(--line-soft);}
  .hdr__in{display:flex;align-items:center;gap:28px;height:78px;}
  .logo{display:flex;align-items:center;gap:10px;font-family:var(--f-head);font-weight:800;font-size:23px;letter-spacing:.16em;color:var(--ink);}
  .logo__img{height:50px;width:auto;display:block}
  @media(max-width:680px){.logo__img{height:42px}}
  .logo__mark{width:30px;height:30px;border-radius:7px;background:var(--bronze);position:relative;flex:none;}
  .logo__mark::before,.logo__mark::after{content:"";position:absolute;left:6px;right:6px;height:2.5px;border-radius:2px;background:var(--white);}
  .logo__mark::before{top:9px;} .logo__mark::after{bottom:9px;box-shadow:0 -5px 0 rgba(255,255,255,.6);}
  .nav{display:flex;gap:26px;margin-inline:auto;}
  .nav a{font-family:var(--f-head);font-size:14.5px;font-weight:500;color:var(--ink);position:relative;padding:6px 0;}
  .nav a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--bronze);transition:width .25s var(--ease);}
  .nav a:hover{color:var(--bronze);} .nav a:hover::after{width:100%;}
  .nav a.active{color:var(--bronze);} .nav a.active::after{width:100%;}
  .hdr__right{display:flex;align-items:center;gap:16px;}
  .lang{display:flex;gap:2px;background:var(--beige);border-radius:var(--r-pill);padding:3px;}
  .lang button{border:none;background:none;cursor:pointer;font-family:var(--f-head);font-size:12.5px;font-weight:600;color:var(--text);padding:5px 11px;border-radius:var(--r-pill);transition:all .2s;}
  .lang button.on{background:var(--white);color:var(--ink);box-shadow:var(--shadow-xs);}
  .iconbtn{width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:var(--white);display:grid;place-items:center;cursor:pointer;color:var(--ink);transition:all .2s;}
  .iconbtn:hover{border-color:var(--bronze);color:var(--bronze);}
  .burger{display:none;}

  /* Breadcrumb */
  .crumbs{font-size:13px;color:var(--stone);font-family:var(--f-head);font-weight:500;
    display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding-top:28px;}
  .crumbs a:hover{color:var(--bronze);} .crumbs .i{width:14px;height:14px;}
  .crumbs span.cur{color:var(--ink);}

  /* Product top */
  .ptop{display:grid;grid-template-columns:1.08fr 1fr;gap:clamp(28px,4vw,64px);padding-block:32px clamp(48px,6vw,80px);align-items:start;}
  .gallery__main{aspect-ratio:4/3.5;border-radius:var(--r-lg);box-shadow:var(--shadow-sm);}
  .gallery__thumbs{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:14px;}
  .thumb{aspect-ratio:1/1;border-radius:var(--r-md);cursor:pointer;border:2px solid transparent;
    transition:border-color .2s,transform .2s;}
  .thumb:hover{transform:translateY(-2px);}
  .thumb.on{border-color:var(--bronze);}

  .pinfo{position:sticky;top:96px;}
  .pinfo__tag{display:inline-flex;align-items:center;gap:7px;font-family:var(--f-head);font-weight:600;font-size:12px;
    letter-spacing:.04em;color:var(--bronze);background:var(--beige);padding:7px 14px;border-radius:var(--r-pill);}
  .pinfo h1{font-size:clamp(30px,3.5vw,44px);margin:16px 0 14px;}
  .prate{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
  .stars{display:flex;gap:2px;color:var(--bronze);}
  .stars .i{width:17px;height:17px;fill:var(--bronze);}
  .prate span{font-size:14px;color:var(--stone);}
  .pinfo__desc{font-size:16.5px;line-height:1.7;margin-bottom:26px;}
  .features{display:grid;grid-template-columns:1fr 1fr;gap:14px 22px;margin-bottom:30px;
    padding:24px;background:var(--beige);border-radius:var(--r-lg);}
  .feat{display:flex;align-items:center;gap:11px;font-size:14.5px;color:var(--ink);font-weight:500;}
  .feat .ic{width:26px;height:26px;border-radius:7px;background:var(--white);color:var(--bronze);display:grid;place-items:center;flex:none;box-shadow:var(--shadow-xs);}
  .feat .ic .i{width:15px;height:15px;}
  .pinfo__cta{display:flex;gap:13px;flex-wrap:wrap;margin-bottom:18px;}
  .pinfo__note{display:flex;flex-wrap:wrap;gap:18px;font-size:13.5px;color:var(--stone);}
  .pinfo__note span{display:inline-flex;align-items:center;gap:7px;}
  .pinfo__note .i{color:var(--bronze);width:16px;height:16px;}

  /* Tabs */
  .tabs{border-top:1px solid var(--line-soft);}
  .tabs__nav{display:flex;gap:6px;flex-wrap:wrap;border-bottom:1px solid var(--line-soft);}
  .tab{font-family:var(--f-head);font-weight:600;font-size:15px;color:var(--text);background:none;border:none;cursor:pointer;
    padding:20px 22px;position:relative;transition:color .2s;}
  .tab:hover{color:var(--ink);}
  .tab.on{color:var(--bronze);}
  .tab.on::after{content:"";position:absolute;left:22px;right:22px;bottom:-1px;height:2.5px;background:var(--bronze);border-radius:2px;}
  .panel{display:none;padding-block:clamp(32px,4vw,52px);}
  .panel.on{display:block;}
  .prose{max-width:74ch;}
  .prose h3{font-size:21px;margin:0 0 12px;}
  .prose p{margin-bottom:16px;font-size:16px;line-height:1.75;}
  .prose ul{margin:0 0 16px;padding-left:0;list-style:none;display:grid;gap:10px;}
  .prose li{display:flex;gap:11px;align-items:flex-start;font-size:15.5px;}
  .prose li .i{color:var(--bronze);margin-top:4px;flex:none;width:17px;height:17px;}

  /* Tech spec table */
  .spec{max-width:760px;}
  .spec__row{display:grid;grid-template-columns:240px 1fr;gap:20px;padding:16px 0;border-bottom:1px solid var(--line-soft);}
  .spec__row:first-child{border-top:1px solid var(--line-soft);}
  .spec__k{font-family:var(--f-head);font-weight:600;font-size:14.5px;color:var(--ink);display:flex;align-items:center;gap:10px;}
  .spec__k .i{color:var(--bronze);width:18px;height:18px;}
  .spec__v{font-size:15.5px;color:var(--text);}
  .spec__v b{color:var(--ink);font-weight:600;}

  /* Colors */
  .swatches{display:grid;grid-template-columns:repeat(6,1fr);gap:18px;max-width:900px;}
  .sw{cursor:pointer;}
  .sw__chip{aspect-ratio:1/1;border-radius:var(--r-md);box-shadow:inset 0 0 0 1px rgba(26,26,26,.08),var(--shadow-xs);
    transition:transform .2s;}
  .sw:hover .sw__chip{transform:translateY(-3px);}
  .sw__name{font-family:var(--f-head);font-weight:500;font-size:13px;color:var(--ink);margin-top:9px;}
  .sw__code{font-size:11.5px;color:var(--stone);}
  .colors__note{margin-top:26px;font-size:14px;color:var(--stone);display:flex;align-items:center;gap:9px;}
  .colors__note .i{color:var(--bronze);}

  /* Docs */
  .docs{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;max-width:820px;}
  .doc{display:flex;align-items:center;gap:16px;padding:18px 20px;border:1px solid var(--line-soft);border-radius:var(--r-md);
    background:var(--white);transition:all .2s;cursor:pointer;}
  .doc:hover{border-color:var(--bronze);box-shadow:var(--shadow-sm);transform:translateY(-2px);}
  .doc__ic{width:44px;height:44px;border-radius:10px;background:#F4E3DA;color:var(--bronze);display:grid;place-items:center;flex:none;}
  .doc__meta{flex:1;}
  .doc__meta strong{display:block;font-family:var(--f-head);font-size:15px;color:var(--ink);}
  .doc__meta span{font-size:12.5px;color:var(--stone);}
  .doc__dl{color:var(--stone);}
  .doc:hover .doc__dl{color:var(--bronze);}

  /* Similar */
  .similar{background:var(--beige);padding-block:clamp(56px,7vw,96px);}
  .sechead{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;}
  .sechead h2{font-size:clamp(26px,3vw,40px);}
  .sechead__link{display:inline-flex;align-items:center;gap:8px;font-family:var(--f-head);font-weight:600;font-size:14px;color:var(--ink);white-space:nowrap;}
  .sechead__link:hover{color:var(--bronze);}
  .cgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
  .ccard{background:var(--white);border:1px solid var(--line-soft);border-radius:var(--r-lg);overflow:hidden;display:flex;flex-direction:column;transition:transform .3s var(--ease),box-shadow .3s var(--ease);}
  .ccard:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);}
  .ccard__img{aspect-ratio:4/3.2;position:relative;}
  .ccard__tag{position:absolute;top:14px;left:14px;z-index:2;background:rgba(255,255,255,.92);backdrop-filter:blur(4px);color:var(--ink);font-family:var(--f-head);font-weight:600;font-size:11.5px;padding:6px 12px;border-radius:var(--r-pill);box-shadow:var(--shadow-xs);}
  .ccard__body{padding:18px 20px 22px;}
  .ccard__body h3{font-size:18px;margin-bottom:8px;}
  .ccard__body p{font-size:14px;line-height:1.5;margin-bottom:14px;}
  .more{display:inline-flex;align-items:center;gap:7px;font-family:var(--f-head);font-weight:600;font-size:14px;color:var(--bronze);}
  .ccard:hover .more .i{transform:translateX(4px);} .more .i{transition:transform .2s var(--ease);}

  /* CTA */
  .cta{position:relative;border-radius:clamp(16px,2vw,26px);overflow:hidden;padding:clamp(44px,6vw,84px);text-align:center;color:#fff;margin-block:clamp(56px,7vw,96px);}
  .cta__bg{position:absolute;inset:0;}
  .cta h2{color:#fff;font-size:clamp(26px,3.2vw,42px);max-width:22ch;margin:0 auto 16px;}
  .cta p{color:rgba(255,255,255,.78);font-size:17px;max-width:46ch;margin:0 auto 30px;}
  .cta__row{display:flex;gap:13px;justify-content:center;flex-wrap:wrap;}

  /* Footer */
  footer.ftr{background:#11152B;color:rgba(255,255,255,.62);padding-top:clamp(56px,7vw,90px);}
  .ftr .logo__img{height:150px}
  .ftr__grid>div:first-child{display:flex;flex-direction:column;align-items:center;text-align:center}
  .ftr__about{margin-inline:auto}
  .ftr__soc{justify-content:center}
  @media(max-width:680px){.ftr .logo__img{height:110px}}
  .ftr__grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:clamp(40px,5vw,64px);}
  .ftr .logo{color:#fff;margin-bottom:18px;}
  .ftr__about{font-size:14.5px;line-height:1.7;max-width:300px;margin-bottom:22px;}
  .ftr__soc{display:flex;gap:10px;}
  .ftr__soc a{width:40px;height:40px;border-radius:50%;border:1px solid rgba(255,255,255,.16);display:grid;place-items:center;color:#fff;transition:all .2s;}
  .ftr__soc a:hover{background:var(--bronze);border-color:var(--bronze);}
  .ftr__col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px;}
  .ftr__col a{display:block;font-size:14px;padding:6px 0;color:rgba(255,255,255,.6);transition:color .2s;}
  .ftr__col a:hover{color:var(--bronze);}
  .ftr__contact div{display:flex;gap:11px;align-items:flex-start;font-size:14px;padding:7px 0;line-height:1.5;}
  .ftr__contact .i{color:var(--bronze);margin-top:3px;flex:none;}
  .ftr__bottom{border-top:1px solid rgba(255,255,255,.1);padding-block:24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:13px;color:rgba(255,255,255,.4);}

  /* WhatsApp */
  .wa{position:fixed;right:24px;bottom:24px;z-index:40;width:58px;height:58px;border-radius:50%;background:#25D366;display:grid;place-items:center;box-shadow:0 10px 30px rgba(37,211,102,.4);color:#fff;transition:transform .2s var(--ease);}
  .wa:hover{transform:scale(1.07);} .wa svg{width:30px;height:30px;}
  .wa::after{content:"";position:absolute;inset:0;border-radius:50%;border:2px solid #25D366;animation:pulse 2.2s ease-out infinite;}
  @keyframes pulse{0%{transform:scale(1);opacity:.7;}100%{transform:scale(1.5);opacity:0;}}

  /* Mobile menu */
  .mdrawer{position:fixed;inset:0;z-index:70;pointer-events:none;}
  .mdrawer__scrim{position:absolute;inset:0;background:rgba(20,17,14,.4);opacity:0;transition:opacity .3s;}
  .mdrawer__panel{position:absolute;top:0;right:0;height:100%;width:min(340px,86vw);background:var(--white);transform:translateX(100%);transition:transform .35s var(--ease);padding:24px;display:flex;flex-direction:column;gap:6px;overflow-y:auto;}
  .mdrawer.on{pointer-events:auto;} .mdrawer.on .mdrawer__scrim{opacity:1;} .mdrawer.on .mdrawer__panel{transform:none;}
  .mdrawer__top{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;}
  .mdrawer__panel a{font-family:var(--f-head);font-weight:500;font-size:17px;color:var(--ink);padding:13px 0;border-bottom:1px solid var(--line-soft);}
  .mdrawer__panel .btn{margin-top:18px;}

  /* Responsive */
  @media (max-width:1080px){
    .nav{display:none;} .burger{display:grid;} .hdr__in{justify-content:space-between;}
    .hdr__right .lang,.hdr__right .iconbtn:not(.burger){display:none;}
    .ptop{grid-template-columns:1fr;gap:30px;} .pinfo{position:static;}
    .swatches{grid-template-columns:repeat(4,1fr);}
    .cgrid{grid-template-columns:repeat(2,1fr);}
    .ftr__grid{grid-template-columns:1fr 1fr;gap:32px;}
  }
  @media (max-width:680px){
    body{font-size:15px;}
    .hdr__in{height:64px;gap:14px;} .logo{font-size:19px;}
    .features{grid-template-columns:1fr;}
    .pinfo__cta .btn{flex:1;}
    .spec__row{grid-template-columns:1fr;gap:4px;}
    .swatches{grid-template-columns:repeat(3,1fr);}
    .docs{grid-template-columns:1fr;}
    .cgrid{grid-template-columns:1fr;max-width:420px;margin-inline:auto;}
    .tabs__nav{flex-wrap:nowrap;overflow-x:auto;}
    .tab{padding:16px 16px;white-space:nowrap;}
    .ftr__grid{grid-template-columns:1fr;gap:30px;}
    .wa{right:16px;bottom:16px;}
  }