/* Original engineering graphics and source photography. No UI framework. */
:root{--wide:1360px;--paper:#f1f3f5;--muted:#59626a}
.preview{background:#eceff1;color:#515a61;font-size:11px;padding-block:6px}
.header-main{min-height:100px}.topline{padding-block:6px}.header-nav{gap:24px}.header-main>.button{padding:12px 18px;min-height:46px;font-size:13px}.logo{width:136px}
.section{padding-block:62px}.section-head{gap:40px;margin-bottom:30px}.section-head>p{font-size:16px;max-width:430px;margin-left:auto}h2{font-size:clamp(29px,3vw,41px)}.section-num{margin-bottom:14px;letter-spacing:.09em}.eyebrow{margin-bottom:16px;letter-spacing:.09em}
.graphic-hero{grid-template-columns:1fr 1fr;min-height:535px;border-radius:12px 12px 3px 12px;isolation:isolate;background:#eef0f3}
.graphic-hero:before{content:'';position:absolute;left:20px;top:26px;bottom:26px;width:11px;border-left:1px solid #c9d0d5;background:repeating-linear-gradient(to bottom,transparent 0 19px,#c9d0d5 19px 20px);opacity:.8}
.graphic-hero .hero-copy{padding:38px 34px 34px 48px;justify-content:center}
.graphic-hero h1{font-size:clamp(34px,3.25vw,46px);line-height:1.13;letter-spacing:-.025em;margin-bottom:20px}
.graphic-hero h1 span{display:block;color:var(--red)}
.graphic-hero .lead{font-size:17px;line-height:1.5;margin-bottom:18px;max-width:425px}
.hero-points{list-style:none;padding:0;margin:0 0 24px;font-size:14px;font-weight:700;display:grid;gap:8px}
.hero-points li{position:relative;padding-left:19px}.hero-points li:before{content:'';position:absolute;left:0;top:7px;width:6px;height:6px;border:1px solid var(--red);border-radius:50%}
.graphic-hero .hero-copy .button{margin:0;min-width:231px;min-height:50px;padding:13px 20px}.hero-small{font-size:12px;color:#636b72;margin:12px 0 0}
.graphic-hero .hero-media>img{object-position:53% center}.photo-coordinate{position:absolute;display:flex;align-items:center;gap:12px;z-index:1;color:#fff;font-size:10px;letter-spacing:.15em;font-weight:700;text-shadow:0 1px 5px #0008}
.photo-coordinate i{display:block;width:86px;height:1px;background:#fff9;position:relative}.photo-coordinate i:after{content:'';width:7px;height:7px;position:absolute;right:0;top:-3px;border:1px solid white;border-radius:50%;background:var(--red)}
.coordinate-top{left:28px;top:29px}.coordinate-bottom{right:25px;bottom:147px}.coordinate-bottom i{width:65px}.coordinate-bottom i:after{right:auto;left:0}
.hero-project-note{position:absolute;bottom:0;right:0;left:45px;display:flex;align-items:center;gap:18px;margin:0;padding:20px 25px;background:#fffffff0;border-top:3px solid var(--red);font-size:14px;line-height:1.5;color:#42474b}
.hero-project-note svg{width:49px;height:49px;flex:none;color:var(--red)}.hero-project-note strong{font-size:16px;color:var(--ink)}
.visual-services{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:24px}.visual-service{grid-column:span 2;text-decoration:none;position:relative;background:#f1f3f5;border-radius:3px;overflow:hidden;display:flex;flex-direction:column}
.visual-service-1,.visual-service-2{grid-column:span 3}.visual-service-photo{position:relative;overflow:hidden;height:185px}.visual-service-1 .visual-service-photo,.visual-service-2 .visual-service-photo{height:245px}
.visual-service-photo img{width:100%;height:100%;object-fit:cover;transition:transform .35s}.visual-service-1 img{object-position:center 48%}.visual-service:hover img{transform:scale(1.025)}
.service-illustration{display:block;width:100%;height:100%;object-fit:cover;background:#e9edf0}.consultation-feature{margin-top:30px;padding:22px 25px;border-left:2px solid var(--red);background:#f3f5f6;display:flex;gap:25px;align-items:center;justify-content:space-between}.consultation-feature strong{font-size:18px}.consultation-feature p{font-size:14px;margin:6px 0 0;color:var(--muted)}.consultation-feature .button{flex:none;padding:12px 18px;min-height:46px}
.service-no{position:absolute;left:18px;bottom:0;display:grid;place-items:center;width:46px;height:46px;background:var(--red);color:#fff;font-weight:700;font-size:14px}
.visual-service-body{position:relative;padding:22px 65px 24px 23px;flex:1;border-bottom:2px solid transparent}.visual-service-body h3{font-size:23px;line-height:1.17;margin-bottom:9px}.visual-service-body p{font-size:14px;line-height:1.5;margin:0;color:var(--muted)}
.visual-service-1 h3,.visual-service-2 h3{font-size:28px}.service-go{position:absolute;right:20px;bottom:25px;color:var(--red);font-size:26px}.visual-service:hover .visual-service-body{border-color:var(--red)}
.systems-section{background:#f4f5f6;padding:56px 0 48px;overflow:hidden;border-top:1px solid #e0e5e8;border-bottom:1px solid #e0e5e8}.scheme-heading{position:relative;z-index:1;max-width:620px}.scheme-heading h2{margin:0}
.systems{display:grid;grid-template-columns:.8fr 1.2fr;gap:36px;align-items:center}.system-copy{position:relative;z-index:1;max-width:480px;margin-top:26px}.system-select{border-top:1px solid #cbd2d7}
.system-select button{display:flex;align-items:center;gap:17px;width:100%;text-align:left;background:transparent;border:0;border-bottom:1px solid #cbd2d7;padding:16px 0;color:#353e45;font-size:17px;font-weight:700;min-height:58px;line-height:1.3}
.system-select button>span{font-size:11px;color:#77828a;font-weight:400}.system-select button>b{margin-left:auto;font-size:20px;font-weight:400;color:#9ca6ad;padding-right:12px}.system-select button[aria-pressed=true]{color:var(--red)}.system-select button[aria-pressed=true]>span,.system-select button[aria-pressed=true]>b{color:var(--red)}
.system-panel{border-left:2px solid var(--red);padding:0 0 0 20px;margin-top:26px}.system-panel h3{font-size:20px;margin-bottom:10px}.system-panel p{font-size:15px;color:var(--muted);margin-bottom:12px}.system-panel .text-link{font-size:13px}.system-panel[hidden]{display:none}
.system-drawing{margin-top:-85px;min-width:0}.house-graphic{display:block;width:100%;height:auto;overflow:visible}.house-graphic text{font-family:Nunito,Arial,sans-serif}.system-drawing>p{font-size:11px;text-align:center;color:#7a858c;letter-spacing:.02em;margin:0}
.systems.is-enhanced [data-system-group]{transition:opacity .22s}.systems.is-enhanced [data-system-group].is-muted{opacity:.25}.systems.is-enhanced [data-system-group].is-active{opacity:1}
.advantages{background:#fff}.adv-grid{gap:24px 35px}.adv-grid article{border-top:0;padding:0 0 0 80px;position:relative;min-height:120px}.adv-icon{width:62px;height:62px;flex:none;color:#535e66}.adv-icon .red{stroke:var(--red)}.adv-grid .adv-icon{position:absolute;top:0;left:0}.adv-grid h3{font-size:19px;margin:5px 0 9px}.adv-grid p{font-size:14px;line-height:1.5}
.project-rail{gap:24px;grid-auto-columns:calc((100% - 24px)/2)}.project-card{background:#f3f5f6}.project-card img{aspect-ratio:1.65;border-radius:3px 3px 0 0}.project-card figcaption{padding:20px 24px 24px;border-bottom:2px solid #d9dfe2}.project-card h3{font-size:24px;margin-bottom:0}.rail-note{margin-top:10px}
.about-grid{gap:50px}.about-grid img{border-radius:3px}.about-grid blockquote{font-size:23px}.about-facts strong{color:var(--red);font-size:31px}
.process{gap:25px}.process article{position:relative;border:0;padding:19px 20px 13px;background:#f1f3f5}.process article:after{content:'';position:absolute;top:49px;right:-25px;width:25px;border-top:1px dashed #c2cbd1}.process article:last-child:after{display:none}.process .adv-icon{display:block;margin-bottom:14px}.process span{position:absolute;right:21px;top:25px;font-size:12px}.process h3{margin:0 0 12px;font-size:21px}.process p{font-size:14px;margin-bottom:9px}
.invitation{border-radius:4px 4px 40px 4px}.invitation>div{padding:38px}.principles{gap:40px}.review{border-top:0;border-bottom:1px solid #dce0e3;background:#f5f6f7;padding:24px;position:relative}.review:before{content:'“';color:var(--red);font-size:56px;line-height:1;position:absolute;right:20px;top:16px}.review h3{padding-right:30px}.review p{font-size:14px}.review-grid{gap:24px}.review-expand .review-grid{margin-top:25px}
.article-list{gap:25px}.article-list article{padding:24px 25px;border-top:2px solid #d3dbe1;background:linear-gradient(140deg,#f0f3f5,#fafbfb)}.article-list h3{font-size:24px}.article-list a.text-link{font-size:13px}
.offer{background-color:#f0f2f4;background-image:linear-gradient(90deg,transparent 97%,#e1e5e84d 97%),linear-gradient(0deg,transparent 97%,#e1e5e84d 97%);background-size:28px 28px;border-left:3px solid var(--red)}
.contact-band{position:relative;overflow:hidden}.contact-band:after{content:'';position:absolute;right:9%;width:260px;height:260px;border:1px solid #ffffff35;border-radius:50%;top:-60px;pointer-events:none}.contact-band .wrap{position:relative;z-index:1}.footer{background:#edf0f2}
.service-hero h1{font-size:clamp(35px,3.5vw,49px)}.service-hero .hero-copy{padding-block:40px}.service-hero .hero-foot{line-height:1.5}.service-subnav{background:#fff;gap:30px}.scope-list{gap:0 35px}.scope-list a{padding:19px 12px 19px 0;font-size:18px}.scope-list a span{color:var(--red)}
.heating-diagram{display:grid;grid-template-columns:.85fr 1.15fr;gap:50px;align-items:center;background:#f5f6f7;border-radius:4px;padding-block:10px}.heating-diagram>div{padding:30px 0}.heating-diagram p:not(.eyebrow){font-size:16px;color:var(--muted);max-width:430px}.heating-diagram .house-graphic{max-height:540px}.cost-table th{border-top:2px solid var(--red)}
.technical-concept .graphic-hero{background:#f1f3f5;grid-template-columns:1fr 1.05fr}.technical-media{padding:0 22px 25px 0;display:flex;flex-direction:column;justify-content:center}.technical-media .house-graphic{max-height:510px;margin-top:10px}.technical-media figcaption{font-size:11px;color:#66727a;text-align:center;margin-top:0}.technical-concept .graphic-hero:after{content:'СК / ИНЖЕНЕРНЫЕ СИСТЕМЫ';position:absolute;bottom:18px;right:20px;font-size:8px;letter-spacing:.13em;color:#8a979f}
@media(min-width:1600px){.graphic-hero h1{font-size:46px}}
@media(max-width:1100px){.header-nav{gap:17px}.header-main>.button{display:none}.graphic-hero .hero-copy{padding:34px 26px 30px 39px}.graphic-hero h1{font-size:36px}.graphic-hero .lead{font-size:16px}.hero-points{font-size:13px}.adv-grid article{padding-left:68px}.adv-icon{width:53px;height:53px}.visual-service-body h3{font-size:21px}.visual-service-1 h3,.visual-service-2 h3{font-size:26px}.system-drawing{margin-top:-40px}.systems{gap:25px}.system-select button{font-size:16px}.system-panel{min-height:170px}}
@media(max-width:850px){.header-nav{font-size:12px;gap:15px}.header-contact .phone{font-size:16px}.header-main{gap:16px}.logo{width:116px}.graphic-hero h1{font-size:32px}.hero-project-note{left:20px;padding:15px;gap:12px;font-size:12px}.hero-project-note strong{font-size:14px}.hero-project-note svg{width:37px}.visual-service-body{padding:20px 40px 20px 18px}.service-go{right:14px}.visual-service-body h3{font-size:19px}.adv-grid{grid-template-columns:1fr 1fr}.system-select button{font-size:15px;gap:12px}.system-drawing{margin-top:0}.systems{grid-template-columns:1fr 1.1fr;gap:10px}.heating-diagram{gap:25px}.process{grid-template-columns:1fr 1fr}.process article:nth-child(2):after{display:none}}
@media(max-width:720px){.wrap{padding-inline:20px}.header-main{min-height:86px}.logo{width:103px}.header-contact .phone{font-size:14px}.header-contact>a:last-child{font-size:11px}.section{padding-block:42px}.section-head{gap:16px;margin-bottom:24px}.section-head>p{font-size:15px;margin-left:0}.eyebrow{font-size:10px}.preview>span{flex-basis:100%;text-align:center}.graphic-hero,.technical-concept .graphic-hero{grid-template-columns:1fr}.graphic-hero:before{left:12px;top:24px;bottom:auto;height:300px;width:7px}.graphic-hero .hero-copy{padding:28px 24px 25px 30px}.graphic-hero h1,.service-hero h1{font-size:34px}.graphic-hero .lead{font-size:15px;margin-bottom:16px}.hero-points{font-size:13px;gap:8px;margin-bottom:20px}.hero-small{font-size:11px}.graphic-hero .hero-media{height:310px;min-height:0}.hero-project-note{left:23px;right:0;font-size:12px;padding:13px 18px;gap:13px}.hero-project-note strong{font-size:14px}.hero-project-note svg{width:35px;height:35px}.coordinate-top{top:18px;left:20px}.coordinate-bottom{bottom:105px;right:20px}.photo-coordinate{font-size:8px}.photo-coordinate i{width:47px}.visual-services{grid-template-columns:1fr 1fr;gap:16px}.visual-service,.visual-service-1,.visual-service-2{grid-column:span 1}.visual-service-5{grid-column:span 2;display:grid;grid-template-columns:1fr 1fr}.visual-service-photo,.visual-service-1 .visual-service-photo,.visual-service-2 .visual-service-photo{height:155px}.visual-service-5 .visual-service-photo{height:100%;min-height:170px}.visual-service-body{padding:17px 15px 38px}.visual-service-body h3,.visual-service-1 h3,.visual-service-2 h3{font-size:21px;overflow-wrap:normal}.visual-service-body p{font-size:12px;line-height:1.45}.service-go{bottom:8px;right:15px;font-size:23px}.service-no{width:34px;height:34px;left:12px;font-size:11px}.systems-section{padding:37px 0}.scheme-heading h2 br{display:none}.systems{display:flex;flex-direction:column;gap:0}.system-copy{display:contents}.system-select{order:1;width:100%;margin-top:24px}.system-select button{padding:13px 4px;min-height:47px;font-size:15px}.system-drawing{order:2;max-width:540px;width:100%;margin:6px 0 0}.system-drawing .house-graphic{max-height:440px}.system-panels{order:3;width:100%}.system-panel{min-height:0;margin-top:22px;padding-left:16px}.system-panel h3{font-size:19px}.system-panel p{font-size:14px}.adv-grid{gap:24px}.adv-grid article{padding:0;min-height:0}.adv-grid .adv-icon{position:static;width:56px;height:56px;margin-bottom:10px}.adv-grid h3{font-size:18px;margin:0 0 8px}.adv-grid p{font-size:13px}.project-rail{grid-auto-columns:91%;gap:18px}.project-card figcaption{padding:17px 19px}.project-card h3{font-size:22px}.about-grid{gap:24px}.about-grid blockquote{font-size:22px}.about-facts{gap:25px}.process{gap:16px}.process article{padding:19px 16px 12px}.process article:after{right:-16px;width:16px}.process span{right:14px;top:23px}.process h3{font-size:19px}.process p{font-size:13px}.invitation>div{padding:29px 25px}.review-grid{gap:18px}.review{padding:24px}.article-list{gap:18px}.article-list article{padding:22px}.principles{gap:0}.heating-diagram{grid-template-columns:1fr;gap:0;padding-block:0;margin-inline:20px;padding-inline:25px}.heating-diagram>div{padding-bottom:10px}.heating-diagram .house-graphic{max-height:460px}.heating-diagram h2 br{display:none}.heating-diagram p:not(.eyebrow){font-size:15px}.technical-concept .graphic-hero .hero-media{height:auto;padding:0 15px 38px;min-height:310px}.technical-media .house-graphic{max-height:430px;margin:0}.technical-media figcaption{font-size:10px}.technical-concept .graphic-hero:after{bottom:14px;right:20px;font-size:7px}}
@media(max-width:420px){.wrap{padding-inline:15px}.graphic-hero h1,.service-hero h1{font-size:30px}.graphic-hero .hero-copy{padding-right:20px}.visual-services{gap:12px}.visual-service-photo,.visual-service-1 .visual-service-photo,.visual-service-2 .visual-service-photo{height:135px}.visual-service-body h3,.visual-service-1 h3,.visual-service-2 h3{font-size:19px;hyphens:auto}.visual-service-body{padding-inline:13px}.visual-service-5{display:flex}.visual-service-5 .visual-service-photo{height:160px;min-height:0}.system-select button{font-size:14px}.adv-grid{gap:22px 20px}.adv-grid h3{font-size:17px}.process h3{font-size:18px}.heating-diagram{margin-inline:15px;padding-inline:20px}.hero-project-note strong{font-size:13px}.hero-project-note{padding-inline:14px}}
@media(prefers-reduced-motion:reduce){.visual-service-photo img,.systems.is-enhanced [data-system-group]{transition:none}}
@media(max-width:720px){.consultation-feature{display:block;padding:22px}.consultation-feature strong{font-size:17px}.consultation-feature .button{margin-top:18px}}
@media(max-width:370px){.visual-services{grid-template-columns:1fr}.visual-service,.visual-service-5{grid-column:auto}.visual-service-photo,.visual-service-1 .visual-service-photo,.visual-service-2 .visual-service-photo{height:165px}.visual-service-body{padding:18px 45px 20px 18px}.visual-service-body h3,.visual-service-1 h3,.visual-service-2 h3{font-size:23px;hyphens:none}.visual-service-body p{font-size:13px}.service-go{bottom:25px}}

/* Shared follow-up links below reviews and photo grids. */
.section-actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px 24px;margin:24px 0 0}
.section-actions>.text-link{display:inline-flex;align-items:center;min-height:44px;max-width:100%}
@media(max-width:720px){.section-actions{margin-top:20px}}

/* One graphic series for the five editable home service directions. */
#services .visual-service{border:1px solid var(--line)}
#services .visual-service-photo{height:240px;min-height:0;background:#fff}
#services .visual-service-photo img{object-fit:contain;object-position:center;padding:12px 20px 20px}
#services .service-no{width:34px;height:34px;font-size:12px;left:16px}
#services .visual-service:focus-visible .visual-service-body{border-color:var(--red)}
@media(max-width:720px){#services .visual-service-photo{height:185px}#services .visual-service-photo img{padding:10px 12px 20px}#services .visual-service-5{display:flex}#services .visual-service-5 .visual-service-photo{height:185px}}
@media(max-width:600px){#services .visual-services{grid-template-columns:1fr;gap:20px}#services .visual-service{grid-column:auto}#services .visual-service-photo,#services .visual-service-5 .visual-service-photo{height:220px}#services .visual-service-body{padding:19px 50px 21px 20px}#services .visual-service-body h3{font-size:23px;hyphens:none}#services .visual-service-body p{font-size:14px}#services .service-go{bottom:23px}}
@media(max-width:370px){#services .visual-service-photo,#services .visual-service-5 .visual-service-photo{height:190px}}