:root{--bg:#f2f5f7;--paper:#fff;--ink:#0f2333;--text:#3c4a56;--muted:#6b7985;--line:#dce3e9;--hot:#e4572e;--hot2:#ff8a4c;--cold:#1d84cf;--cold2:#5cb8f2;--navy:#0f2333;--dark:#0a1824;--r:16px;--wrap:1200px}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.6 "Nunito Sans",system-ui,sans-serif;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%;height:auto}
a{color:inherit}
h1,h2,h3{font-family:"Exo 2",system-ui,sans-serif;font-weight:700;line-height:1.1;margin:0;letter-spacing:-.01em}
h2{font-size:clamp(30px,3.6vw,44px)}
h3{font-size:22px}
p{margin:0}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font:700 13px/1.2 "Exo 2",sans-serif;letter-spacing:.14em;text-transform:uppercase;color:var(--hot)}
.eyebrow::before{content:"";width:22px;height:3px;border-radius:2px;background:linear-gradient(90deg,var(--hot),var(--cold))}
.sec{padding:92px 0}
.sec-head{max-width:760px;margin-bottom:42px}
.sec-head h2{margin-top:12px}
.sec-head p{margin-top:16px;font-size:18px;color:var(--text)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;border-radius:12px;padding:15px 26px;font:700 16px/1.2 "Nunito Sans",sans-serif;text-decoration:none;border:2px solid transparent;cursor:pointer;transition:transform .15s,background .2s,border-color .2s,color .2s}
.btn:hover{transform:translateY(-1px)}
.btn-hot{background:var(--hot);color:#fff}
.btn-hot:hover{background:#cf4720}
.btn-line{border-color:rgba(255,255,255,.35);color:#fff}
.btn-line:hover{border-color:#fff}
.btn-ink{background:var(--ink);color:#fff}
.btn-ink:hover{background:#1c3a52}
.btn-out{border-color:var(--ink);color:var(--ink)}
.btn-out:hover{background:var(--ink);color:#fff}
.ic{width:20px;height:20px;flex:none}
/* шапка */
.top{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.top-in{display:flex;align-items:center;gap:22px;height:74px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;flex:none}
.brand svg{width:44px;height:44px;flex:none}
.brand b{display:block;font:800 21px/1 "Exo 2",sans-serif;letter-spacing:.04em}
.brand small{display:block;margin-top:4px;font-size:12.5px;color:var(--muted);font-weight:600}
.nav{display:flex;gap:20px;margin-left:auto}
.nav a{text-decoration:none;font-weight:700;font-size:15px;color:#2a3b49;padding:6px 0;border-bottom:2px solid transparent}
.nav a:hover,.nav a[aria-current="page"]{color:var(--hot);border-color:var(--hot)}
.top-phone{font:700 17px "Exo 2",sans-serif;text-decoration:none;white-space:nowrap}
.top .btn{padding:11px 18px;font-size:15px}
.burger{display:none;margin-left:auto;width:46px;height:46px;border-radius:12px;border:1px solid var(--line);background:#fff;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.burger span{display:block;width:20px;height:2px;border-radius:2px;background:var(--ink)}
/* первый экран главной */
.hero{background:radial-gradient(700px 420px at 85% 20%,rgba(29,132,207,.25),transparent 60%),radial-gradient(600px 400px at 0% 100%,rgba(228,87,46,.22),transparent 60%),var(--navy);color:#fff;overflow:hidden}
.hero-in{display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);gap:44px;align-items:center;padding:64px 24px 76px}
.hero h1{font-size:clamp(38px,4.4vw,58px);margin-top:16px}
.hero h1 .h{color:var(--hot2)}
.hero h1 .c{color:var(--cold2)}
.hero .lead{margin-top:20px;font-size:19px;color:#c8d6e2;max-width:540px}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.facts{display:grid;grid-template-columns:repeat(3,auto);gap:14px 28px;margin:34px 0 0;padding:0;list-style:none;justify-content:start}
.facts b{display:block;font:800 26px/1 "Exo 2",sans-serif;color:#fff}
.facts span{display:block;margin-top:6px;font-size:14px;color:#a9bccb;line-height:1.35}
/* дом в разрезе */
.cut{background:linear-gradient(180deg,#132c40,#0d2232);border:1px solid rgba(92,184,242,.25);border-radius:22px;padding:18px 18px 16px;box-shadow:0 30px 70px rgba(0,0,0,.35)}
.cut-top{display:flex;justify-content:space-between;align-items:center;gap:10px;margin:0 4px 8px}
.cut-top span{font:700 12px "Exo 2",sans-serif;letter-spacing:.14em;text-transform:uppercase;color:var(--cold2)}
.cut-top em{font-style:normal;font-size:13px;color:#8fa7ba}
.house{display:block;width:100%;height:auto}
.flow{fill:none;stroke-linecap:round;stroke-linejoin:round;stroke-width:5}
.flow-hot{stroke:var(--hot)}
.flow-ret{stroke:#b6452a}
.flow-cold{stroke:var(--cold)}
.flow-sew{stroke:#8a6a4b}
.flow-anim{fill:none;stroke-linecap:round;stroke:rgba(255,255,255,.75);stroke-width:2;stroke-dasharray:3 14;animation:flow 1.1s linear infinite}
.flow-anim.slow{animation-duration:1.8s}
@keyframes flow{to{stroke-dashoffset:-17}}
.hs{cursor:pointer;outline:none}
.hs circle.ring{fill:var(--hot);stroke:#fff;stroke-width:2.5;transform-box:fill-box;transform-origin:center;animation:pulse 2.2s ease-in-out infinite}
.hs circle.dot{fill:#fff}
.hs text{fill:#fff;font:800 16px "Exo 2",sans-serif;pointer-events:none}
.hs:hover circle.ring,.hs:focus-visible circle.ring,.hs.on circle.ring{fill:#fff;stroke:var(--hot);animation:none}
.hs.on text,.hs:hover text,.hs:focus-visible text{fill:var(--hot)}
@keyframes pulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.18);opacity:.75}}
.snow circle{fill:#fff;animation:snow 6s linear infinite}
@keyframes snow{from{transform:translateY(-10px)}to{transform:translateY(60px);opacity:0}}
.cut-card{margin-top:12px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:14px 16px;min-height:104px}
.cut-card b{display:block;font:700 19px "Exo 2",sans-serif}
.cut-card p{margin-top:6px;color:#c8d6e2;font-size:15.5px;line-height:1.5}
.cut-card a{display:inline-block;margin-top:8px;color:var(--hot2);font-weight:700;text-decoration:none}
.cut-card a:hover{text-decoration:underline}
/* слоган */
.slogan{background:linear-gradient(90deg,var(--hot),#c2412a 45%,#1a6fae 55%,var(--cold));color:#fff}
.slogan p{padding:22px 0;text-align:center;font:800 clamp(20px,2.4vw,28px)/1.25 "Exo 2",sans-serif;letter-spacing:.01em}
/* направления */
.dirs{display:grid;grid-template-columns:repeat(6,1fr);gap:18px}
.dir{grid-column:span 2;position:relative;display:flex;flex-direction:column;background:var(--paper);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;text-decoration:none;transition:transform .2s,box-shadow .2s}
.dir:nth-child(4),.dir:nth-child(5){grid-column:span 3}
.dir:hover{transform:translateY(-3px);box-shadow:0 18px 40px rgba(15,35,51,.12)}
.dir img{aspect-ratio:4/3;object-fit:cover;width:100%}
.dir:nth-child(4) img,.dir:nth-child(5) img{aspect-ratio:16/9}
.dir .ph{aspect-ratio:16/9;display:grid;place-items:center;background:linear-gradient(135deg,#e7eef4,#d5e2ec)}
.dir .ph svg{width:62%;height:auto}
.dir-b{padding:20px 22px 22px;display:flex;flex-direction:column;gap:8px;flex:1}
.dir-b h3{font-size:23px}
.dir-b p{color:var(--text);font-size:15.5px}
.dir-b .more{margin-top:auto;padding-top:6px;color:var(--hot);font-weight:800;font-size:15px}
.tag{position:absolute;top:12px;left:12px;background:rgba(15,35,51,.82);color:#fff;font:700 12px "Exo 2",sans-serif;letter-spacing:.06em;text-transform:uppercase;padding:6px 10px;border-radius:8px}
/* дома и предприятия */
.who{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.who-card{position:relative;border-radius:20px;overflow:hidden;min-height:380px;color:#fff;display:flex;align-items:flex-end}
.who-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.who-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,24,36,0) 30%,rgba(10,24,36,.88))}
.who-t{position:relative;z-index:1;padding:28px}
.who-t h3{font-size:28px}
.who-t p{margin-top:8px;color:#d7e2ea}
/* фото работ */
.tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px}
.tabs button{border:1.5px solid var(--line);background:#fff;border-radius:999px;padding:9px 16px;font:700 14.5px "Nunito Sans",sans-serif;color:#2a3b49;cursor:pointer}
.tabs button[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:#fff}
.gal{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:220px;gap:12px;grid-auto-flow:dense}
.gal button{position:relative;padding:0;border:0;border-radius:14px;overflow:hidden;cursor:zoom-in;background:#cfd9e1}
.gal img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.gal button:hover img{transform:scale(1.04)}
.gal span{position:absolute;left:10px;bottom:10px;background:rgba(10,24,36,.78);color:#fff;font-size:13px;font-weight:700;padding:5px 10px;border-radius:8px;text-align:left}
.lb{position:fixed;inset:0;z-index:60;background:rgba(6,14,22,.93);display:flex;align-items:center;justify-content:center;padding:20px}
.lb figure{margin:0;display:flex;flex-direction:column;align-items:center;max-width:100%}
.lb img{max-height:calc(100vh - 130px);max-width:min(1200px,94vw);width:auto;border-radius:10px}
.lb figcaption{color:#dbe5ec;margin-top:12px;font-size:15px}
.lb .x,.lb .pv,.lb .nx{position:absolute;border:0;background:rgba(255,255,255,.12);color:#fff;width:48px;height:48px;border-radius:50%;font-size:28px;line-height:1;cursor:pointer}
.lb .x{top:16px;right:18px}
.lb .pv{left:14px;top:50%;transform:translateY(-50%)}
.lb .nx{right:14px;top:50%;transform:translateY(-50%)}
/* солнце */
.sun{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:center;background:var(--paper);border:1px solid var(--line);border-radius:24px;padding:36px}
.sun-ph{display:grid;grid-template-columns:1.2fr 1fr;grid-template-rows:1fr 1fr;gap:10px;height:400px}
.sun-ph img{width:100%;height:100%;object-fit:cover;border-radius:12px}
.sun-ph img:first-child{grid-row:span 2}
.sun ul{list-style:none;padding:0;margin:22px 0 0;display:grid;gap:10px}
.sun li{display:flex;gap:12px;align-items:flex-start;color:var(--text)}
.sun li::before{content:"";flex:none;width:10px;height:10px;margin-top:8px;border-radius:50%;background:#f2b134;box-shadow:0 0 0 4px rgba(242,177,52,.2)}
/* этапы */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:s}
.step{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:26px 24px;position:relative}
.step::before{counter-increment:s;content:"0" counter(s);display:block;font:800 40px/1 "Exo 2",sans-serif;background:linear-gradient(90deg,var(--hot),var(--cold));-webkit-background-clip:text;background-clip:text;color:transparent}
.step b{display:block;margin-top:14px;font:700 20px "Exo 2",sans-serif}
.step span{display:block;margin-top:6px;color:var(--text);font-size:15.5px}
/* страница услуги */
.phero{background:var(--paper);border-bottom:1px solid var(--line)}
.phero-in{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;padding:44px 24px 56px}
.crumbs{font-size:14px;color:var(--muted);font-weight:600}
.crumbs a{color:var(--muted)}
.phero h1{font-size:clamp(34px,4vw,52px);margin-top:14px}
.phero .lead{margin-top:18px;font-size:19px;color:var(--text);max-width:560px}
.phero .cta-row .btn-line{border-color:var(--ink);color:var(--ink)}
.phero-img{border-radius:22px;overflow:hidden;aspect-ratio:4/3.3;background:#cfd9e1;box-shadow:0 24px 60px rgba(15,35,51,.16)}
.phero-img img{width:100%;height:100%;object-fit:cover}
.phero-img.ph{display:grid;place-items:center;background:linear-gradient(135deg,#e7eef4,#d5e2ec)}
.phero-img.ph svg{width:80%;height:auto}
.does{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.do{display:grid;grid-template-columns:auto 1fr;gap:18px;background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:24px}
.do i{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;font-style:normal;font:800 18px "Exo 2",sans-serif;color:#fff;background:linear-gradient(135deg,var(--hot),#b8402a)}
.do:nth-child(even) i{background:linear-gradient(135deg,var(--cold),#13629c)}
.do b{display:block;font:700 20px "Exo 2",sans-serif}
.do span{display:block;margin-top:6px;color:var(--text);font-size:15.5px}
.where{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.where span{background:#e6eef4;border-radius:999px;padding:8px 14px;font-weight:700;font-size:14.5px;color:#22394c}
.others{display:flex;flex-wrap:wrap;gap:10px}
.others a{display:inline-flex;align-items:center;gap:8px;background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:12px 16px;font-weight:700;text-decoration:none}
.others a:hover{border-color:var(--hot);color:var(--hot)}
.note{margin-top:14px;color:var(--muted);font-size:14.5px}
/* заявка */
.order{background:var(--navy);color:#fff}
.order-in{display:grid;grid-template-columns:.95fr 1.05fr;gap:52px;align-items:start}
.order h2{margin-top:12px}
.order .lead{margin-top:16px;color:#c8d6e2;font-size:18px}
.contacts{list-style:none;padding:0;margin:28px 0 0;display:grid;gap:16px}
.contacts li{display:flex;gap:14px;align-items:flex-start}
.contacts svg{width:22px;height:22px;flex:none;margin-top:3px;color:var(--hot2)}
.contacts a{text-decoration:none;font:700 19px "Exo 2",sans-serif}
.contacts small{display:block;color:#93a9ba;font-size:13.5px}
.contacts span{color:#dbe5ec}
form.card{background:#fff;color:var(--ink);border-radius:20px;padding:30px 28px}
form.card h3{font-size:25px}
.fld{display:block;margin-top:16px}
.fld>span{display:block;font-weight:800;font-size:14px;margin-bottom:8px;color:#2a3b49}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips button{border:1.5px solid var(--line);background:#f5f8fa;border-radius:10px;padding:9px 13px;font:700 14px "Nunito Sans",sans-serif;color:#2a3b49;cursor:pointer}
.chips button[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:#fff}
.inp{width:100%;border:1.5px solid var(--line);border-radius:10px;padding:13px 14px;font:600 16px "Nunito Sans",sans-serif;color:var(--ink);background:#fff}
.inp:focus{outline:none;border-color:var(--cold)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:12px}
form.card .btn{width:100%;margin-top:20px}
.err{margin-top:10px;color:#b3261e;font-weight:700;font-size:14px}
.agree{margin-top:10px;font-size:12.5px;color:var(--muted)}
.ok{text-align:center;padding:26px 4px}
.ok b{display:block;font:800 26px "Exo 2",sans-serif}
.ok p{margin-top:10px;color:var(--text)}
/* подвал */
footer{background:var(--dark);color:#9fb2c1;padding:40px 0 110px;font-size:14px}
.foot{display:flex;flex-wrap:wrap;justify-content:space-between;gap:24px}
.foot b{color:#fff}
.foot nav{display:flex;flex-wrap:wrap;gap:8px 18px}
.foot nav a{color:#c8d6e2;text-decoration:none}
.foot nav a:hover{color:#fff}
.demo{margin-top:24px;padding-top:18px;border-top:1px solid rgba(255,255,255,.1);font-size:13px;color:#7f95a6}
.demo a{color:var(--hot2)}
.mbar{display:none}
@media (max-width:1140px){
  .nav{gap:14px}.nav a{font-size:14px}
  .top-phone{display:none}
}
@media (max-width:960px){
  .nav,.top .btn{display:none}
  .burger{display:flex}
  .top.open .nav{display:flex;position:absolute;left:0;right:0;top:74px;flex-direction:column;gap:0;background:#fff;border-bottom:1px solid var(--line);padding:6px 24px 14px;box-shadow:0 20px 30px rgba(15,35,51,.08)}
  .top.open .nav a{padding:13px 0;border-bottom:1px solid var(--line);font-size:16px}
  .hero-in,.phero-in,.order-in,.sun,.who{grid-template-columns:1fr}
  .hero-in{padding:40px 20px 52px}
  .phero-in{padding:28px 20px 44px;gap:30px}
  .dirs{grid-template-columns:1fr 1fr}
  .dir,.dir:nth-child(4),.dir:nth-child(5){grid-column:span 1}
  .dir:nth-child(5){grid-column:span 2}
  .dir:nth-child(4) img{aspect-ratio:4/3}
  .gal{grid-template-columns:repeat(3,1fr);grid-auto-rows:190px}
  .steps{grid-template-columns:1fr 1fr}
  .does{grid-template-columns:1fr}
  .sec{padding:66px 0}
  .sun{padding:24px}
  .sun-ph{height:320px}
  .mbar{display:grid;grid-template-columns:1fr 1fr;gap:8px;position:fixed;left:0;right:0;bottom:0;z-index:40;padding:10px 12px calc(10px + env(safe-area-inset-bottom));background:rgba(255,255,255,.97);border-top:1px solid var(--line)}
  .mbar a{display:flex;align-items:center;justify-content:center;gap:8px;border-radius:12px;padding:13px 8px;font-weight:800;text-decoration:none}
  .mbar .m-call{background:var(--ink);color:#fff}
  .mbar .m-calc{background:var(--hot);color:#fff}
}
@media (max-width:640px){
  body{font-size:16px}
  .wrap{padding:0 16px}
  .top-in{height:64px;gap:12px}
  .top.open .nav{top:64px;padding:6px 16px 14px}
  .brand svg{width:38px;height:38px}
  .brand b{font-size:18px}
  .brand small{font-size:11.5px}
  .hero-in{padding:30px 16px 44px}
  .hero .lead{font-size:17px}
  .cta-row .btn{flex:1 1 100%}
  .facts{grid-template-columns:1fr 1fr;gap:16px}
  .facts li:last-child{grid-column:span 2}
  .cut{padding:12px 10px 12px;border-radius:18px}
  .cut-top em{display:none}
  .dirs{grid-template-columns:1fr}
  .dir:nth-child(5){grid-column:span 1}
  .who-card{min-height:300px}
  .gal{grid-template-columns:1fr 1fr;grid-auto-rows:150px}
  .steps{grid-template-columns:1fr}
  .sun-ph{height:260px}
  .phero-in{padding:22px 16px 40px}
  .two{grid-template-columns:1fr}
  form.card{padding:24px 18px}
  .do{padding:20px;gap:14px}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}