:root{--navy:#07111e;--navy-2:#0b1828;--ink:#12202c;--muted:#64727e;--paper:#f3f5f3;--white:#fff;--line:#d4dad8;--aqua:#35d0bd;--aqua-dark:#138f82;--max:1240px;--pad:clamp(22px,4vw,64px)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:Manrope,Arial,sans-serif;font-size:16px;line-height:1.6}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}.site-header{height:84px;padding:0 var(--pad);display:grid;grid-template-columns:1fr auto 1fr;align-items:center;background:rgba(243,245,243,.92);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50;backdrop-filter:blur(16px)}.brand{display:flex;align-items:center;gap:13px;line-height:1.1}.brand b{display:block;font-family:Onest,sans-serif;font-size:15px}.brand small{display:block;color:var(--muted);font-size:11px;letter-spacing:.09em;margin-top:4px;text-transform:uppercase}.brand-mark{display:grid;gap:3px;width:30px}.brand-mark i{display:block;height:3px;background:var(--ink)}.brand-mark i:nth-child(2){width:70%;background:var(--aqua)}.desktop-nav{display:flex;gap:34px;font-size:14px;font-weight:600}.desktop-nav a{position:relative}.desktop-nav a:after{content:"";position:absolute;left:0;right:100%;bottom:-7px;height:2px;background:var(--aqua-dark);transition:.25s}.desktop-nav a:hover:after{right:0}.header-contact{justify-self:end;text-align:right;line-height:1.25}.header-contact span{display:block;color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.09em}.header-contact strong{font-size:14px}.menu-toggle{display:none;background:none;border:0;padding:10px}.menu-toggle span{display:block;width:24px;height:2px;background:var(--ink);margin:5px}.hero{min-height:calc(100vh - 84px);background:var(--navy);color:#fff;display:grid;grid-template-columns:minmax(0,1.06fr) minmax(400px,.94fr);position:relative;overflow:hidden}.hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:44px 44px;mask-image:linear-gradient(90deg,#000 0%,transparent 72%)}.hero-copy{z-index:1;padding:clamp(70px,8vw,120px) var(--pad) 54px;display:flex;flex-direction:column;justify-content:center}.eyebrow,.section-index{font-size:12px;font-weight:700;letter-spacing:.15em;text-transform:uppercase}.eyebrow{color:#b8c6d3;display:flex;align-items:center;gap:10px}.eyebrow span{width:28px;height:2px;background:var(--aqua)}h1,h2,h3{font-family:Onest,Manrope,sans-serif;line-height:1.05;margin:0}h1{font-size:clamp(48px,6.2vw,91px);letter-spacing:-.055em;max-width:900px}h1 em{font-style:normal;color:var(--aqua)}.hero-lead{font-size:clamp(17px,1.45vw,21px);color:#bac6d0;max-width:690px;margin:30px 0 34px;line-height:1.6}.hero-actions{display:flex;gap:12px;flex-wrap:wrap}.button{min-height:54px;padding:0 23px;display:inline-flex;align-items:center;justify-content:center;gap:26px;font-weight:700;font-size:14px;border:1px solid transparent;transition:.2s;cursor:pointer}.button-primary{background:var(--aqua);color:var(--navy)}.button-primary:hover{background:#69e3d4;transform:translateY(-2px)}.button-ghost{border-color:#435061;color:#fff}.button-ghost:hover{border-color:#fff}.hero-facts{display:grid;grid-template-columns:repeat(3,1fr);gap:0;max-width:660px;margin-top:62px;border-top:1px solid #33404e}.hero-facts>div{display:flex;align-items:flex-start;gap:12px;padding:22px 20px 0 0;border-right:1px solid #33404e}.hero-facts>div+div{padding-left:20px}.hero-facts>div:last-child{border:0}.hero-facts strong{font-family:Onest;font-size:26px;color:var(--aqua);line-height:1}.hero-facts span{font-size:12px;color:#aab7c1;line-height:1.45}.hero-visual{position:relative;z-index:2;padding:42px var(--pad) 42px 0;display:flex;align-items:stretch}.blueprint-card{background:#0c1c2d;color:#277c79;position:relative;width:100%;min-height:600px;border-left:1px solid #1e3746;overflow:hidden}.blueprint-card:after{content:"";position:absolute;inset:18px;border:1px solid rgba(53,208,189,.18);pointer-events:none}.blueprint-card svg{position:absolute;inset:6%;width:88%;height:88%;opacity:.72}.blueprint-label,.coordinate{position:absolute;font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:#66858b;z-index:3}.blueprint-label{left:36px;top:28px}.coordinate{right:34px;bottom:28px}.portrait-frame{position:absolute;right:9%;top:18%;width:min(270px,48%);z-index:2;background:#d8dbd5;border:10px solid #f3f5f1;box-shadow:0 28px 70px rgba(0,0,0,.42)}.portrait-frame img{display:block;width:100%;aspect-ratio:4/5;object-fit:cover;filter:grayscale(100%) contrast(1.05)}.portrait-caption{padding:14px 16px;background:#f3f5f1;color:var(--ink);display:flex;justify-content:space-between;gap:10px;align-items:end}.portrait-caption strong{font-family:Onest;font-size:14px}.portrait-caption span{font-size:10px;text-transform:uppercase;letter-spacing:.09em;color:var(--muted)}.trust-strip{min-height:90px;display:flex;justify-content:center;align-items:center;gap:clamp(14px,2.5vw,38px);padding:20px var(--pad);border-bottom:1px solid var(--line);font-family:Onest;font-weight:700;letter-spacing:.08em}.trust-strip i{width:4px;height:4px;border-radius:50%;background:var(--aqua-dark)}.section{max-width:var(--max);margin:auto;padding:clamp(90px,11vw,150px) var(--pad)}.section-intro{display:grid;grid-template-columns:160px minmax(300px,1.1fr) minmax(240px,.65fr);gap:38px;align-items:start;margin-bottom:70px}.section-index{color:var(--aqua-dark);margin:5px 0}.section-intro h2,.experience h2,.formats h2,.contact-section h2{font-size:clamp(42px,5vw,68px);letter-spacing:-.045em}.section-intro>p:last-child{color:var(--muted);margin:5px 0}.service-list{border-top:1px solid var(--line)}.service-item{display:grid;grid-template-columns:75px 1fr 52px;gap:24px;align-items:center;padding:30px 10px;border-bottom:1px solid var(--line);transition:.25s;outline:none}.service-item>div{display:grid;grid-template-columns:minmax(260px,.75fr) 1fr;gap:35px;align-items:center}.service-number{font-size:12px;color:var(--muted)}.service-item h3{font-size:clamp(24px,3vw,37px);letter-spacing:-.025em}.service-item p{color:var(--muted);max-width:520px}.service-arrow{font-size:28px;text-align:right}.service-item:hover,.service-item:focus,.service-item.is-active{background:#e9eeeb;padding-left:26px;padding-right:26px}.service-item.is-active .service-arrow{color:var(--aqua-dark)}.dark-section{background:var(--navy);color:#fff;padding:clamp(90px,11vw,150px) max(var(--pad),calc((100vw - var(--max))/2 + var(--pad)))}.section-intro.light{grid-template-columns:160px 1fr;margin-bottom:65px}.section-intro.light .section-index{color:var(--aqua)}.outcomes-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid #34404c}.outcomes-grid article{padding:32px 26px 18px 0;border-right:1px solid #34404c}.outcomes-grid article+article{padding-left:26px}.outcomes-grid article:last-child{border:0}.outcomes-grid span{font-size:12px;color:var(--aqua)}.outcomes-grid h3{font-size:22px;margin:55px 0 18px}.outcomes-grid p{font-size:14px;color:#aebac4}.experience{display:grid;grid-template-columns:1fr .9fr;gap:clamp(50px,8vw,120px)}.experience-copy>.section-index{margin-bottom:27px}.experience h2{margin-bottom:35px}.large-text{font-size:21px;line-height:1.55;color:var(--ink)}.experience-copy>p:not(.section-index):not(.large-text){color:var(--muted)}.text-link{display:inline-flex;gap:34px;font-weight:700;margin-top:26px;border-bottom:1px solid var(--ink);padding-bottom:8px}.career-panel{background:#e8ece9;padding:36px}.panel-label{font-size:11px;text-transform:uppercase;letter-spacing:.13em;color:var(--muted);margin:0 0 24px}.career-item{display:grid;grid-template-columns:62px 1fr;column-gap:16px;padding:18px 0;border-top:1px solid #cbd2cf}.career-item span{grid-row:1/3;color:var(--aqua-dark);font-family:Onest;font-size:12px}.career-item strong{font-family:Onest}.career-item small{color:var(--muted);font-size:12px}.career-item.current{background:var(--navy);color:#fff;margin:14px -18px -18px;padding:20px 18px;border:0}.career-item.current small{color:#aebac4}.formats{background:#dfe5e2;padding:clamp(90px,11vw,140px) max(var(--pad),calc((100vw - var(--max))/2 + var(--pad)))}.formats-heading{display:grid;grid-template-columns:160px 1fr;gap:38px;margin-bottom:55px}.format-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.format-cards article{background:#f5f7f5;min-height:330px;padding:30px;display:flex;flex-direction:column}.format-cards article>span{color:var(--aqua-dark);font-size:11px;text-transform:uppercase;letter-spacing:.13em}.format-cards h3{font-size:27px;margin:60px 0 18px}.format-cards p{color:var(--muted);font-size:14px}.format-cards strong{margin-top:auto;font-family:Onest;font-size:18px}.format-cards .featured{background:var(--aqua)}.format-cards .featured>span,.format-cards .featured p{color:#17413d}.contact-section{background:var(--navy-2);color:#fff;padding:clamp(90px,10vw,140px) max(var(--pad),calc((100vw - var(--max))/2 + var(--pad)));display:grid;grid-template-columns:1fr .85fr;gap:clamp(50px,8vw,120px)}.contact-copy .section-index{color:var(--aqua)}.contact-copy h2{margin:24px 0 30px}.contact-copy>p:not(.section-index){color:#aebac4;max-width:570px}.contact-copy>a{display:block;font-family:Onest;font-size:clamp(17px,1.8vw,24px);margin-top:10px}.contact-form{background:#f3f5f3;color:var(--ink);padding:34px}.contact-form label{display:block;border-bottom:1px solid #cbd2cf;padding:15px 0}.contact-form label span{display:block;font-size:11px;text-transform:uppercase;letter-spacing:.1em;color:var(--muted)}.contact-form input,.contact-form textarea{width:100%;border:0;background:transparent;outline:0;padding:9px 0 3px;resize:vertical;color:var(--ink)}.form-submit{border:0;width:100%;margin-top:26px}.contact-form small{display:block;color:var(--muted);font-size:11px;line-height:1.45;margin-top:12px}footer{background:#050c15;color:#8d9ba7;padding:28px var(--pad);display:flex;justify-content:space-between;gap:20px;font-size:12px}footer a{color:var(--aqua)}.mobile-menu{display:none}
@media(max-width:980px){.site-header{grid-template-columns:1fr auto}.desktop-nav,.header-contact{display:none}.menu-toggle{display:block}.hero{grid-template-columns:1fr}.hero-copy{padding-bottom:30px}.hero-visual{min-height:490px;padding:0 var(--pad) 45px}.blueprint-card{min-height:480px}.portrait-frame{width:210px}.section-intro{grid-template-columns:120px 1fr}.section-intro>p:last-child{grid-column:2}.outcomes-grid{grid-template-columns:repeat(2,1fr)}.outcomes-grid article:nth-child(2){border-right:0}.outcomes-grid article:nth-child(3){padding-left:0;border-top:1px solid #34404c}.outcomes-grid article:nth-child(4){border-top:1px solid #34404c}.experience{grid-template-columns:1fr}.mobile-menu{position:fixed;inset:84px 0 0;background:var(--navy);z-index:49;color:#fff;padding:45px var(--pad);flex-direction:column}.mobile-menu.is-open{display:flex}.mobile-menu a{font-family:Onest;font-size:28px;padding:13px 0;border-bottom:1px solid #293642}}
@media(max-width:680px){.site-header{height:70px}.brand small{display:none}.hero{min-height:auto}.hero-copy{padding-top:68px}.hero h1{font-size:47px}.hero-lead{font-size:16px}.hero-actions{display:grid}.button{width:100%}.hero-facts{margin-top:43px}.hero-facts>div{display:block}.hero-facts>div+div{padding-left:12px}.hero-facts strong{font-size:22px}.hero-facts span{display:block;margin-top:7px}.hero-visual{min-height:390px}.blueprint-card{min-height:380px}.portrait-frame{width:170px;top:15%;right:8%;border-width:7px}.portrait-caption{display:block;padding:10px}.portrait-caption span{display:block;margin-top:2px}.trust-strip{justify-content:flex-start;overflow:auto}.section-intro,.section-intro.light,.formats-heading{display:block}.section-intro h2,.formats-heading h2{margin-top:22px}.service-item{grid-template-columns:35px 1fr 25px;gap:8px;padding:23px 5px}.service-item>div{display:block}.service-item p{font-size:14px;margin-bottom:0}.service-item:hover,.service-item:focus,.service-item.is-active{padding-left:12px;padding-right:12px}.outcomes-grid{grid-template-columns:1fr}.outcomes-grid article,.outcomes-grid article+article{padding:28px 0;border-right:0;border-top:1px solid #34404c}.outcomes-grid h3{margin:20px 0 12px}.career-panel{padding:24px 20px}.format-cards{grid-template-columns:1fr}.format-cards article{min-height:280px}.contact-section{grid-template-columns:1fr}.contact-form{padding:25px 20px}footer{display:block}.mobile-menu{inset:70px 0 0}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
.brand-logo{display:block;width:48px;height:48px}.format-cards{grid-template-columns:repeat(4,1fr)}.format-cards h3{margin-top:44px}.format-cards article{min-height:350px}.format-cards .featured strong{font-size:17px;line-height:1.35}
@media(max-width:1100px){.format-cards{grid-template-columns:repeat(2,1fr)}}
@media(max-width:680px){.brand-logo{width:42px;height:42px}.format-cards{grid-template-columns:1fr}.format-cards article{min-height:280px}}
.brand{min-width:255px;gap:10px}.brand-symbol{width:52px;height:52px;flex:none;overflow:hidden;position:relative}.brand-logo{position:absolute;width:110px;height:110px;max-width:none;left:-29px;top:-20px}.brand-copy b{font-size:17px;letter-spacing:-.025em}.brand-copy small{font-size:10px;letter-spacing:0;text-transform:none;white-space:nowrap}.desktop-nav{gap:clamp(12px,1.9vw,28px)}.site-header{grid-template-columns:minmax(255px,1fr) auto minmax(145px,1fr)}
.documents{scroll-margin-top:84px}.documents-heading{display:grid;grid-template-columns:160px 1fr;gap:38px;margin-bottom:42px}.documents h2{font-size:clamp(38px,4.6vw,62px);letter-spacing:-.045em}.documents-heading p:last-child{max-width:660px;color:var(--muted);margin:20px 0 0}.document-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.document-card{display:flex;flex-direction:column;min-height:290px;padding:32px;background:#e8eeeb;border:1px solid #d1dad6;transition:background .2s,transform .2s}.document-card:hover,.document-card:focus-visible{background:#d8e9e3;transform:translateY(-3px)}.document-type{font-size:12px;color:var(--aqua-dark);font-weight:700;letter-spacing:.08em;text-transform:uppercase}.document-card h3{font-size:clamp(24px,2.4vw,32px);margin:32px 0 14px}.document-card p{margin:0 0 22px;color:#52616a;max-width:450px}.document-action{margin-top:auto;padding-top:16px;border-top:1px solid #c5d2cd;font-weight:700;display:flex;justify-content:space-between}.documents-note{color:var(--muted);font-size:14px;margin:24px 0 0}
@media(max-width:980px){.site-header{grid-template-columns:1fr auto}}
@media(max-width:680px){.brand{min-width:0}.brand-symbol{width:43px;height:43px}.brand-logo{width:93px;height:93px;left:-25px;top:-17px}.brand-copy b{font-size:15px}.brand-copy small{font-size:9px;white-space:normal;max-width:190px;line-height:1.15}.documents-heading{display:block}.documents h2{margin-top:20px}.document-list{grid-template-columns:1fr}.document-card{min-height:270px;padding:25px}.documents{scroll-margin-top:70px}}
.form-honey{position:absolute!important;left:-10000px!important;width:1px!important;height:1px!important;opacity:0!important}.thanks-page{min-height:100vh;background:var(--navy);color:#fff;display:grid;place-items:center;padding:24px}.thanks-content{max-width:680px}.thanks-content .section-index{color:var(--aqua)}.thanks-content h1{font-size:clamp(40px,6vw,72px);margin:24px 0}.thanks-content p:not(.section-index){color:#bcc8d1;font-size:18px}.thanks-content p a{color:var(--aqua);text-decoration:underline}.thanks-content .button{margin-top:22px}
.contact-direct{display:flex;flex-direction:column;justify-content:center;align-items:flex-start}.contact-direct h3{font-family:Onest,sans-serif;font-size:clamp(28px,3vw,42px);line-height:1.15;margin:12px 0}.contact-direct p:not(.section-index){max-width:450px}.contact-direct .button{margin-top:20px}.contact-direct-phone{margin-top:22px;text-decoration:underline;text-underline-offset:4px}
/* Реальные чертежи из проекта — спокойная фактура за основным содержанием. */
.blueprint-card::before{content:"";position:absolute;inset:0;background:url("assets/heating-schematic.0098948e0033.jpeg") center / cover no-repeat;filter:grayscale(1) invert(1);mix-blend-mode:screen;opacity:.26;pointer-events:none}.blueprint-card svg{display:none}.blueprint-card::after{z-index:1}
.dark-section{position:relative;isolation:isolate;overflow:hidden}.dark-section::before{content:"";position:absolute;z-index:-1;inset:0;background:url("assets/equipment-drawing.61c72bcdf2c2.jpeg") right center / min(58vw,800px) auto no-repeat;filter:grayscale(1) invert(1);mix-blend-mode:screen;opacity:.12;mask-image:linear-gradient(90deg,transparent 25%,#000 85%);pointer-events:none}
.documents{position:relative;isolation:isolate}.documents::before{content:"";position:absolute;z-index:-1;inset:0;background:url("assets/system-schematic.96d78287dd44.jpeg") right 8% / 78% auto no-repeat;opacity:.085;mask-image:linear-gradient(90deg,transparent 20%,#000 90%);pointer-events:none}.documents .document-card{background:rgba(232,238,235,.96)}.documents .document-card:hover,.documents .document-card:focus-visible{background:#d8e9e3}
@media(max-width:680px){.blueprint-card::before{background-position:37% center;opacity:.21}.dark-section::before{background-size:auto 68%;background-position:70% center;opacity:.09}.documents::before{background-size:auto 55%;background-position:60% top;opacity:.055}}
@media(min-width:981px){.document-list{grid-template-columns:repeat(3,minmax(0,1fr))}.document-card{min-height:330px}}
.document-card.has-download{padding-bottom:21px}.document-main{display:flex;flex-direction:column;flex:1;min-width:0}.document-download{display:inline-block;align-self:flex-start;margin-top:13px;color:#127f76;font-size:14px;font-weight:700;text-decoration:underline;text-underline-offset:3px}.document-download:hover,.document-download:focus-visible{color:#075d57}

/* A balanced editorial rhythm for the four ways to work together. */
.formats{position:relative;overflow:hidden;isolation:isolate}
.formats::before{content:"";position:absolute;inset:auto -10% -34% 45%;height:75%;background:radial-gradient(circle,rgba(61,214,198,.19),transparent 68%);pointer-events:none;z-index:-1}
.format-cards{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.format-cards article{position:relative;min-height:310px;padding:clamp(28px,3.2vw,44px);border:1px solid rgba(9,27,38,.1);box-shadow:0 16px 42px rgba(9,27,38,.035);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.format-cards article:hover{transform:translateY(-4px);box-shadow:0 20px 44px rgba(9,27,38,.11);border-color:rgba(19,127,118,.32)}
.format-cards h3{font-size:clamp(26px,3vw,38px);max-width:470px;margin:52px 0 16px;letter-spacing:-.035em}
.format-cards p{font-size:16px;line-height:1.55;max-width:510px;margin:0 0 32px}
.format-cards strong{display:block;padding-top:18px;border-top:1px solid rgba(9,27,38,.16);font-size:clamp(17px,1.7vw,23px);line-height:1.35}
.format-cards .featured{background:#58dece}
.format-cards .featured::after{content:"";position:absolute;top:29px;right:32px;width:38px;height:38px;border:1px solid rgba(9,27,38,.32);border-radius:50%;background:radial-gradient(circle at center,#09202d 0 3px,transparent 4px),linear-gradient(#09202d,#09202d) center/1px 18px no-repeat,linear-gradient(90deg,#09202d,#09202d) center/18px 1px no-repeat;opacity:.66}
.documents-heading>div{max-width:900px}.documents-heading p:last-child{max-width:700px;line-height:1.65}
.document-list{gap:18px}.document-card{border:1px solid rgba(9,27,38,.08);box-shadow:0 12px 30px rgba(9,27,38,.035);transition:transform .2s ease,box-shadow .2s ease,background .2s ease}
.document-card:hover,.document-card:focus-within{transform:translateY(-3px);box-shadow:0 20px 42px rgba(9,27,38,.1)}
.document-card h3{line-height:1.16}.document-card p{line-height:1.55}
.contact-copy>a{width:fit-content;text-decoration-thickness:1px;text-underline-offset:5px}.contact-copy>a:hover,.contact-copy>a:focus-visible{text-decoration:underline;color:var(--aqua)}
.button:focus-visible,.document-card:focus-visible,.document-main:focus-visible,.document-download:focus-visible,.text-link:focus-visible,.desktop-nav a:focus-visible,.header-contact:focus-visible,.contact-copy>a:focus-visible{outline:3px solid var(--aqua);outline-offset:4px}
@media(max-width:780px){.format-cards{grid-template-columns:1fr}.format-cards article{min-height:275px}.format-cards h3{margin-top:42px}.format-cards .featured::after{right:24px;top:23px}}
@media(prefers-reduced-motion:reduce){.format-cards article,.document-card{transition:none}.format-cards article:hover,.document-card:hover,.document-card:focus-within{transform:none}}

/* The supplied shield mark, adapted to the site's navy and turquoise palette. */
.brand-symbol{display:block;width:52px;height:52px;flex:none;overflow:visible}
.brand-logo{position:static;display:block;width:52px;height:52px;max-width:100%;object-fit:contain}
@media(max-width:680px){.brand-symbol,.brand-logo{width:44px;height:44px}}

/* Project portfolio: compact groups and real drawing covers. */
.project-portfolio{padding-top:clamp(75px,9vw,125px);padding-bottom:clamp(90px,10vw,140px)}
.projects-intro{display:grid;grid-template-columns:160px 1fr;gap:38px;align-items:start;margin-bottom:42px}
.projects-intro h2{font-size:clamp(42px,5vw,68px);letter-spacing:-.045em}
.projects-intro p:last-child{font-size:17px;color:var(--muted);max-width:690px;margin:19px 0 0}
.project-groups{border-top:1px solid #c5d2cd}
.project-group{border-bottom:1px solid #c5d2cd;scroll-margin-top:98px}
.project-group summary{list-style:none;display:flex;align-items:center;gap:20px;padding:27px 7px;cursor:pointer;transition:color .2s ease,background .2s ease}
.project-group summary::-webkit-details-marker{display:none}
.project-group summary:hover{color:#127f76}
.project-group summary>div{display:flex;align-items:center;gap:25px;min-width:0;flex:1}
.project-group-code{display:flex;align-items:center;justify-content:center;width:68px;height:44px;flex:none;background:#e2ebe7;color:#137f76;font:700 12px Onest,sans-serif;letter-spacing:.04em}
.project-group h3{font-size:clamp(22px,2.7vw,34px);line-height:1.2;letter-spacing:-.03em}
.project-group-count{font-size:14px;color:var(--muted);white-space:nowrap}
.project-group-toggle{width:39px;height:39px;border:1px solid #b8cac3;display:grid;place-items:center;color:#127f76;font-size:26px;font-weight:400;line-height:1;flex:none;transition:transform .2s ease}
.project-group[open] .project-group-toggle{transform:rotate(45deg)}
.project-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;padding:4px 0 36px}
.project-card{display:flex;flex-direction:column;min-width:0;background:#e9eeeb;border:1px solid #d7e2dd;transition:transform .2s ease,box-shadow .2s ease}
.project-card:hover,.project-card:focus-visible{transform:translateY(-3px);box-shadow:0 15px 28px rgba(9,27,38,.12)}
.project-thumb{height:210px;position:relative;display:grid;place-items:center;background:#dce4e0;overflow:hidden}
.project-thumb img{width:100%;height:100%;object-fit:cover;object-position:center top;opacity:.89;filter:saturate(.72)}
.project-thumb-action{position:absolute;right:15px;bottom:15px;width:37px;height:37px;display:grid;place-items:center;background:var(--aqua);color:var(--navy);font-size:20px;font-weight:700}
.project-card-body{min-height:100px;padding:19px 21px 20px;display:flex;flex-direction:column;gap:10px}
.project-card-body strong{font:600 19px/1.35 Onest,Manrope,sans-serif;overflow-wrap:anywhere}
.project-card-body small{font-size:13px;color:var(--muted);margin-top:auto}
.project-group summary:focus-visible,.project-card:focus-visible{outline:3px solid #138f84;outline-offset:3px}
@media(max-width:980px){.project-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:680px){.projects-intro{display:block}.projects-intro h2{margin-top:20px}.projects-intro p:last-child{font-size:15px}.project-group summary{padding:20px 0;gap:10px}.project-group summary>div{gap:12px}.project-group-code{width:49px;height:40px;font-size:10px}.project-group h3{font-size:19px}.project-group-count{font-size:12px}.project-group-toggle{width:32px;height:32px;font-size:21px}.project-grid{grid-template-columns:1fr;gap:12px}.project-thumb{height:190px}.project-card-body{min-height:88px}}
@media(max-width:390px){.project-group-code{display:none}.project-group-count{white-space:normal;text-align:right;max-width:55px}}
@media(prefers-reduced-motion:reduce){.project-group summary,.project-group-toggle,.project-card{transition:none}.project-card:hover,.project-card:focus-visible{transform:none}}
@media(min-width:981px) and (max-width:1180px){.site-header{grid-template-columns:1fr auto}.desktop-nav,.header-contact{display:none}.menu-toggle{display:block}.mobile-menu{position:fixed;inset:84px 0 0;background:var(--navy);z-index:49;color:#fff;padding:45px var(--pad);flex-direction:column}.mobile-menu.is-open{display:flex}.mobile-menu a{font-family:Onest;font-size:28px;padding:13px 0;border-bottom:1px solid #293642}}

.form-honey{position:absolute!important;left:-10000px!important;width:1px!important;height:1px!important;opacity:0!important}.thanks-page{min-height:100vh;background:var(--navy);color:#fff;display:grid;place-items:center;padding:24px}.thanks-content{max-width:680px}.thanks-content .section-index{color:var(--aqua)}.thanks-content h1{font-size:clamp(40px,6vw,72px);margin:24px 0}.thanks-content p:not(.section-index){color:#bcc8d1;font-size:18px}.thanks-content p a{color:var(--aqua);text-decoration:underline}.thanks-content .button{margin-top:22px}
/* Реальные чертежи из проекта — спокойная фактура за основным содержанием. */
.blueprint-card::before{content:"";position:absolute;inset:0;background:url("assets/heating-schematic.0098948e0033.jpeg") center / cover no-repeat;filter:grayscale(1) invert(1);mix-blend-mode:screen;opacity:.26;pointer-events:none}.blueprint-card svg{display:none}.blueprint-card::after{z-index:1}
.dark-section{position:relative;isolation:isolate;overflow:hidden}.dark-section::before{content:"";position:absolute;z-index:-1;inset:0;background:url("assets/equipment-drawing.61c72bcdf2c2.jpeg") right center / min(58vw,800px) auto no-repeat;filter:grayscale(1) invert(1);mix-blend-mode:screen;opacity:.12;mask-image:linear-gradient(90deg,transparent 25%,#000 85%);pointer-events:none}
.documents{position:relative;isolation:isolate}.documents::before{content:"";position:absolute;z-index:-1;inset:0;background:url("assets/system-schematic.96d78287dd44.jpeg") right 8% / 78% auto no-repeat;opacity:.085;mask-image:linear-gradient(90deg,transparent 20%,#000 90%);pointer-events:none}.documents .document-card{background:rgba(232,238,235,.96)}.documents .document-card:hover,.documents .document-card:focus-visible{background:#d8e9e3}
@media(max-width:680px){.blueprint-card::before{background-position:37% center;opacity:.21}.dark-section::before{background-size:auto 68%;background-position:70% center;opacity:.09}.documents::before{background-size:auto 55%;background-position:60% top;opacity:.055}}
@media(min-width:981px){.document-list{grid-template-columns:repeat(3,minmax(0,1fr))}.document-card{min-height:330px}}
.document-card.has-download{padding-bottom:21px}.document-main{display:flex;flex-direction:column;flex:1;min-width:0}.document-download{display:inline-block;align-self:flex-start;margin-top:13px;color:#127f76;font-size:14px;font-weight:700;text-decoration:underline;text-underline-offset:3px}.document-download:hover,.document-download:focus-visible{color:#075d57}

.form-honey{position:absolute!important;left:-10000px!important;width:1px!important;height:1px!important;opacity:0!important}.consent-check{display:flex!important;align-items:flex-start;gap:10px;border:0!important;padding:12px 0!important;font-size:13px}.consent-check input{width:auto!important;margin-top:4px}.consent-check a{text-decoration:underline}.form-errors{color:#a21d1d;font-weight:700}.cookie-notice{position:fixed;z-index:100;left:20px;right:20px;bottom:20px;max-width:760px;margin:auto;padding:18px 22px;background:#fff;color:#12202c;box-shadow:0 8px 40px #0005;display:flex;align-items:center;gap:18px}.cookie-notice[hidden]{display:none}.cookie-notice p{margin:0;flex:1}.cookie-notice button{padding:10px 18px;background:#35d0bd;border:0;font-weight:700;cursor:pointer}.legal-page{min-height:100vh;background:#f3f5f3;padding:40px max(24px,calc((100vw - 850px)/2));color:#12202c}.legal-page h1{font-size:clamp(36px,5vw,58px);margin:20px 0}.legal-page .legal-body{white-space:pre-wrap;line-height:1.7}.legal-page a{color:#138f82;text-decoration:underline}.legal-warning{padding:14px;background:#fff1cf;color:#704d00}

