/* Кровельные работы — тёмно-синий сланец + медь, калькулятор кровли. */
:root{
  --bg:#eef1f4;--paper:#ffffff;--ink:#1c2632;--slate:#2a3646;--slate-d:#1e2836;--mut:#5f6b7a;--line:#dbe1e8;
  --copper:#c07a3e;--copper-d:#a2632c;--sky:#3a86c8;
  --radius:12px;--max:1200px;--ease:cubic-bezier(.2,.8,.25,1);
  --font:'Manrope',-apple-system,Segoe UI,Roboto,Arial,sans-serif;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}img{max-width:100%;display:block}
.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}
.sec{padding:84px 0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:14px 28px;border-radius:10px;font-weight:700;font-size:16px;cursor:pointer;border:0;transition:.2s var(--ease);font-family:inherit}
.btn--copper{background:var(--copper);color:#fff}.btn--copper:hover{background:var(--copper-d);transform:translateY(-2px)}
.btn--slate{background:var(--slate);color:#fff}.btn--slate:hover{background:var(--slate-d)}
.btn--out{background:#fff;border:1.5px solid var(--line);color:var(--ink)}.btn--out:hover{border-color:var(--copper);color:var(--copper-d)}
.btn--outw{background:transparent;border:1.5px solid rgba(255,255,255,.4);color:#fff}.btn--outw:hover{background:rgba(255,255,255,.1)}
.btn--wide{width:100%}
.arrow{transition:.2s}.btn:hover .arrow{transform:translateX(3px)}

.hdr{position:sticky;top:0;z-index:100;background:rgba(238,241,244,.94);backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:.3s}
.hdr.scr{border-color:var(--line)}
.hdr .wrap{display:flex;align-items:center;justify-content:space-between;height:70px;gap:16px}
.logo{font-size:22px;font-weight:800}.logo b{color:var(--copper-d)}
.nav{display:flex;gap:24px}.nav a{color:var(--mut);font-weight:600;font-size:15px}.nav a:hover{color:var(--ink)}
.hdr .r{display:flex;align-items:center;gap:16px}.hdr .ph{font-weight:800;font-size:16px}
.burger{display:none;background:none;border:0;font-size:26px;cursor:pointer;color:var(--ink)}

.hero{background:linear-gradient(120deg,var(--slate),var(--slate-d));color:#fff;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;left:0;right:0;top:0;height:70px;opacity:.14;
  background:repeating-linear-gradient(90deg,#fff 0 2px,transparent 2px 30px)}
.hero .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center;padding:60px 24px;position:relative}
.hero .badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);border-radius:100px;padding:7px 15px;font-weight:600;font-size:13px;color:#e0a86a;margin-bottom:20px}
.hero h1{font-size:clamp(32px,4.8vw,52px);line-height:1.08;font-weight:800;margin:0 0 16px;letter-spacing:-.02em}
.hero .lead{font-size:18px;color:rgba(255,255,255,.82);max-width:520px;margin:0 0 26px}
.hero .cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:26px}
.hero .mini{display:flex;gap:30px;flex-wrap:wrap}
.hero .mini b{font-size:26px;font-weight:800;color:var(--copper);display:block;line-height:1}
.hero .mini span{color:rgba(255,255,255,.7);font-size:13px}
.hero__roof{aspect-ratio:5/4;position:relative;filter:drop-shadow(0 30px 50px rgba(0,0,0,.4))}
.hero__roof .r{position:absolute;left:50%;top:14%;transform:translateX(-50%);width:0;height:0;
  border-left:44% solid transparent;border-right:44% solid transparent;border-bottom:110px solid var(--copper)}
.hero__roof .r::after{content:"";position:absolute;left:-40%;top:110px;width:80%;height:150px;background:repeating-linear-gradient(180deg,#c9a877 0 14px,#b89760 14px 15px)}
.hero__roof .lines{position:absolute;left:14%;right:14%;top:16%;height:96px;background:repeating-linear-gradient(90deg,rgba(255,255,255,.25) 0 1px,transparent 1px 22px)}

.head{text-align:center;max-width:640px;margin:0 auto 44px}
.head .k{color:var(--copper-d);font-weight:700;font-size:14px;letter-spacing:.08em;text-transform:uppercase;margin-bottom:10px}
.head h2{font-size:clamp(28px,4.2vw,42px);font-weight:800;margin:0 0 12px;letter-spacing:-.02em;line-height:1.1}
.head p{color:var(--mut);font-size:18px;margin:0}

.types{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.type{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.25s var(--ease)}
.type:hover{transform:translateY(-5px);border-color:var(--copper)}
.type .sw{height:100px}
.type .sw.metal{background:#7a8a99;background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.2) 0 3px,transparent 3px 20px),repeating-linear-gradient(0deg,rgba(0,0,0,.12) 0 20px,transparent 20px 22px)}
.type .sw.soft{background:#5a5148;background-image:repeating-linear-gradient(0deg,rgba(0,0,0,.16) 0 8px,rgba(255,255,255,.06) 8px 10px)}
.type .sw.falc{background:#8894a0;background-image:repeating-linear-gradient(90deg,rgba(0,0,0,.16) 0 2px,transparent 2px 26px)}
.type .sw.natural{background:#9a5238;background-image:repeating-linear-gradient(0deg,rgba(0,0,0,.16) 0 9px,transparent 9px 11px),repeating-linear-gradient(90deg,rgba(255,255,255,.1) 0 30px,rgba(0,0,0,.14) 30px 32px)}
.type .b{padding:18px}.type h3{margin:0 0 4px;font-size:18px}.type p{color:var(--mut);font-size:13px;margin:0 0 10px}.type .pr{color:var(--copper-d);font-weight:700}

.calc{display:grid;grid-template-columns:1.3fr .7fr;gap:26px;align-items:start}
.calc-main{background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:30px}
.cstep{margin-bottom:24px}
.cstep .t{font-weight:700;font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:10px}
.cstep .t i{width:24px;height:24px;border-radius:6px;background:var(--copper);color:#fff;display:grid;place-items:center;font-style:normal;font-size:13px;font-weight:800}
.opts{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.opt{border:1.5px solid var(--line);border-radius:12px;padding:14px;cursor:pointer;transition:.15s;display:flex;justify-content:space-between;align-items:center;gap:10px}
.opt:hover{border-color:var(--copper)}.opt.sel{border-color:var(--copper);background:#fbf1e8}
.opt b{font-weight:700;font-size:15px}.opt span{color:var(--mut);font-size:12px}.opt .price{color:var(--sky);font-weight:700}
.rangewrap{display:flex;align-items:center;gap:16px}
.rangewrap input[type=range]{flex:1;accent-color:var(--copper)}
.rangewrap b{font-size:22px;font-weight:800;color:var(--copper-d);min-width:96px;text-align:right}
.result{background:var(--slate-d);color:#fff;border-radius:16px;padding:28px;position:sticky;top:88px}
.result h3{margin:0 0 16px;font-size:19px}
.result .li{display:flex;justify-content:space-between;font-size:14px;color:rgba(255,255,255,.7);padding:8px 0;border-bottom:1px dashed rgba(255,255,255,.16)}
.result .li b{color:#fff;font-weight:600}
.result .total{margin:16px 0;display:flex;justify-content:space-between;align-items:baseline}
.result .total .big{font-size:30px;font-weight:800;color:var(--copper)}
.result input{width:100%;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);border-radius:10px;padding:12px 14px;color:#fff;font:inherit;margin-bottom:9px}
.result input::placeholder{color:rgba(255,255,255,.6)}
.lp-consent{display:flex;gap:9px;align-items:flex-start;font-size:11px;color:rgba(255,255,255,.7);margin:8px 0;cursor:pointer}
.lp-consent input{margin:2px 0 0;width:16px;height:16px;flex:0 0 auto}
.lp-consent a{color:var(--copper);text-decoration:underline}

.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stp{text-align:center}
.stp .n{width:52px;height:52px;border-radius:50%;background:var(--paper);border:1px solid var(--line);display:grid;place-items:center;font-weight:800;font-size:20px;margin:0 auto 12px;color:var(--copper-d)}
.stp h3{font-size:16px;margin:0 0 6px}.stp p{color:var(--mut);font-size:14px;margin:0}

.contact{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:var(--paper)}
.cform{padding:40px}.cform h3{font-size:23px;margin:0 0 6px}.cform .sub{color:var(--mut);margin:0 0 18px}
.field{margin-bottom:13px}.field label{display:block;font-size:14px;color:var(--mut);margin-bottom:6px;font-weight:600}
.field input,.field textarea{width:100%;background:var(--bg);border:1.5px solid var(--line);border-radius:10px;padding:13px 15px;color:var(--ink);font:inherit}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--copper)}
.cform .lp-consent{color:var(--mut)}.cform .lp-consent a{color:var(--copper-d)}
.cinfo{padding:40px;background:var(--slate-d);color:#fff}
.cinfo h3{font-size:21px;margin:0 0 20px}
.cinfo .line{display:flex;gap:13px;align-items:center;margin-bottom:15px}
.cinfo .line .ic{width:40px;height:40px;border-radius:10px;background:rgba(255,255,255,.1);display:grid;place-items:center;font-size:17px;flex:0 0 auto;color:var(--copper)}
.cinfo .map{margin-top:18px;border-radius:10px;overflow:hidden;min-height:160px;background:rgba(255,255,255,.08)}
.cinfo .map iframe{width:100%;height:210px;border:0;display:block}
.cinfo .map .stub{display:grid;place-items:center;height:180px;color:rgba(255,255,255,.7);font-size:14px}

.lp-flash{position:fixed;top:18px;left:50%;transform:translateX(-50%);z-index:9998;max-width:520px;width:calc(100% - 36px);padding:15px 44px 15px 18px;border-radius:10px;font-weight:600;box-shadow:0 20px 50px rgba(0,0,0,.16)}
.lp-flash--ok{background:#e6f0ee;border:1px solid #2f8a6a;color:#186048}
.lp-flash--err{background:#fbece1;border:1px solid var(--copper);color:var(--copper-d)}
.lp-flash__close{position:absolute;right:12px;top:50%;transform:translateY(-50%);background:none;border:0;color:inherit;font-size:22px;cursor:pointer}

.footer{background:var(--slate-d);color:rgba(255,255,255,.72);padding:48px 0 28px}
.footer .top{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:24px}
.footer .logo{color:#fff}
.footer .cols{display:flex;gap:46px;flex-wrap:wrap}
.footer .col b{color:#fff;display:block;margin-bottom:12px;font-size:14px}
.footer .col a{display:block;color:rgba(255,255,255,.72);font-size:14px;margin-bottom:8px}.footer .col a:hover{color:#fff}
.footer .legal{border-top:1px solid rgba(255,255,255,.14);padding-top:18px;font-size:13px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}

.reveal{opacity:0;transform:translateY(24px);transition:.7s var(--ease)}.reveal.in{opacity:1;transform:none}
.d1{transition-delay:.08s}.d2{transition-delay:.16s}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none}}

@media(max-width:960px){
  .hero .wrap,.calc,.contact{grid-template-columns:1fr}
  .result{position:static}.types{grid-template-columns:repeat(2,1fr)}.steps{grid-template-columns:repeat(2,1fr)}
  .nav{display:none}.burger{display:block}
}
@media(max-width:600px){
  .types,.steps{grid-template-columns:1fr}.opts{grid-template-columns:1fr}
  .sec{padding:56px 0}.calc-main,.result{padding:22px}.cform,.cinfo{padding:28px 22px}
}

/* --- gallery / reviews / faq --- */
.works{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.wk{border-radius:14px;overflow:hidden;position:relative;height:200px;background:linear-gradient(165deg,var(--c),#232a33)}
.wk span{position:absolute;left:0;right:0;bottom:0;padding:14px 16px;color:#fff;font-weight:700;font-size:14px;background:linear-gradient(transparent,rgba(20,24,30,.8))}
.wk em{display:block;font-style:normal;font-weight:500;font-size:12px;opacity:.9}
.revs{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.rv{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:26px}
.rv .st{color:var(--copper);letter-spacing:3px;margin-bottom:12px}
.rv p{font-size:14px;margin:0 0 16px}
.rv .who b{display:block;font-size:14px}.rv .who span{color:var(--mut);font-size:12px}
.faq{max-width:760px;margin:0 auto}
.faq details{background:var(--paper);border:1px solid var(--line);border-radius:12px;margin-bottom:10px;overflow:hidden}
.faq summary{list-style:none;cursor:pointer;padding:18px 22px;font-weight:800;font-size:16px;display:flex;justify-content:space-between;gap:14px}
.faq summary::-webkit-details-marker{display:none}
.faq summary .ar{color:var(--copper-d);transition:transform .3s var(--ease)}
.faq details[open] summary .ar{transform:rotate(45deg)}
.faq .a{padding:0 22px 18px;color:var(--mut);font-size:14px}
@media(max-width:960px){.works,.revs{grid-template-columns:1fr}}