/* Строительство бань — тёплый тёмный, дерево + угли/огонь, серифный дисплей. */
:root{
  --bg:#211712;--panel:#2b1e17;--panel-2:#34251c;--ink:#f3e9df;--mut:#b09a89;--line:#3d2c22;
  --ember:#e07b3c;--ember-d:#c8632a;--wood:#b98a5a;--gold:#e0b062;--steam:#a9b8b5;
  --radius:14px;--max:1180px;--ease:cubic-bezier(.2,.7,.3,1);
  --serif:'Playfair Display',Georgia,serif;--sans:'Inter',-apple-system,Segoe UI,Arial,sans-serif;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);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:86px 0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:15px 28px;border-radius:10px;font-weight:700;font-size:16px;cursor:pointer;border:0;transition:.2s var(--ease);font-family:var(--sans)}
.btn--ember{background:var(--ember);color:#fff;box-shadow:0 12px 28px rgba(224,123,60,.3)}.btn--ember:hover{background:var(--ember-d);transform:translateY(-2px)}
.btn--wood{background:var(--panel-2);color:var(--ink);border:1px solid var(--line)}.btn--wood:hover{border-color:var(--ember)}
.btn--out{background:transparent;border:1px solid rgba(255,255,255,.35);color:var(--ink)}.btn--out:hover{background:rgba(255,255,255,.08)}
.btn--wide{width:100%}
.arrow{transition:.2s}.btn:hover .arrow{transform:translateX(3px)}

.hdr{position:sticky;top:0;z-index:100;background:rgba(33,23,18,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);transition:.3s}
.hdr .wrap{display:flex;align-items:center;justify-content:space-between;height:72px;gap:16px}
.logo{font-family:var(--serif);font-size:24px;font-weight:700}.logo b{color:var(--ember)}
.nav{display:flex;gap:26px}.nav a{color:var(--mut);font-weight:500;font-size:15px}.nav a:hover{color:var(--ink)}
.hdr .r{display:flex;align-items:center;gap:16px}.hdr .ph{font-weight:700;font-size:17px}
.burger{display:none;background:none;border:0;font-size:26px;cursor:pointer;color:var(--ink)}

.hero{position:relative;overflow:hidden;
  background:radial-gradient(70% 90% at 80% 0%,rgba(224,123,60,.16),transparent 60%),linear-gradient(180deg,#2a1c14,#1b120d)}
.hero::before{content:"";position:absolute;left:0;right:0;bottom:0;height:40%;opacity:.4;
  background:repeating-linear-gradient(90deg,rgba(0,0,0,.3) 0 3px,transparent 3px 26px)}
.hero .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center;padding:66px 24px;position:relative}
.hero .badge{display:inline-flex;align-items:center;gap:8px;background:var(--panel);border:1px solid var(--line);border-radius:100px;padding:8px 16px;font-weight:600;font-size:13px;color:var(--gold);margin-bottom:22px}
.hero h1{font-family:var(--serif);font-size:clamp(36px,5.4vw,60px);line-height:1.04;font-weight:700;margin:0 0 18px}
.hero h1 em{font-style:italic;color:var(--ember)}
.hero .lead{font-size:18px;color:var(--mut);max-width:520px;margin:0 0 28px}
.hero .cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:28px}
.hero .mini{display:flex;gap:32px;flex-wrap:wrap}
.hero .mini b{font-family:var(--serif);font-size:30px;color:var(--gold);display:block;line-height:1}
.hero .mini span{color:var(--mut);font-size:13px}
.hero__img{aspect-ratio:5/4.6;border-radius:16px;position:relative;overflow:hidden;
  background:linear-gradient(180deg,#3a2c20,#22160f);box-shadow:0 30px 60px rgba(0,0,0,.5)}
.hero__img .logs{position:absolute;inset:16% 14% 0 14%;border-radius:8px 8px 0 0;
  background:repeating-linear-gradient(180deg,#7a5638 0 14px,#6a482e 14px 15px)}
.hero__img .roof{position:absolute;left:8%;right:8%;top:8%;height:14%;background:var(--panel);border-radius:6px 6px 0 0;transform:skewX(0)}
.hero__img .door{position:absolute;left:44%;bottom:0;width:14%;height:34%;background:#2a1a10;border-radius:4px 4px 0 0}
.hero__img .smoke{position:absolute;right:22%;top:-4%;font-size:40px;opacity:.8;animation:rise 4s ease-in-out infinite}
@keyframes rise{0%,100%{transform:translateY(0);opacity:.5}50%{transform:translateY(-8px);opacity:.9}}

.head{text-align:center;max-width:640px;margin:0 auto 44px}
.head .k{color:var(--ember);font-weight:700;font-size:14px;letter-spacing:.08em;text-transform:uppercase;margin-bottom:10px}
.head h2{font-family:var(--serif);font-size:clamp(30px,4.4vw,48px);font-weight:700;margin:0 0 12px;line-height:1.06}
.head p{color:var(--mut);font-size:18px;margin:0}

.types{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.type{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.25s var(--ease)}
.type:hover{transform:translateY(-5px);border-color:var(--ember)}
.type .ph{height:130px;background:radial-gradient(circle at 50% 40%,var(--c),#1b120d);display:grid;place-items:center;font-size:44px}
.type .b{padding:20px}.type h3{font-family:var(--serif);font-size:20px;margin:0 0 6px}.type p{color:var(--mut);font-size:13px;margin:0 0 12px}
.type .pr{color:var(--gold);font-weight:700}

/* калькулятор */
.calc{display:grid;grid-template-columns:1.3fr .7fr;gap:26px;align-items:start}
.calc-main{background:var(--panel);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:50%;background:var(--ember);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;background:var(--panel-2)}
.opt:hover{border-color:var(--ember)}
.opt.sel{border-color:var(--ember);background:rgba(224,123,60,.12)}
.opt b{font-weight:700;font-size:15px}.opt span{color:var(--mut);font-size:12px}.opt .em{font-size:22px}
.rangewrap{display:flex;align-items:center;gap:16px}
.rangewrap input[type=range]{flex:1;accent-color:var(--ember)}
.rangewrap b{font-family:var(--serif);font-size:22px;color:var(--gold);min-width:96px;text-align:right}
.result{background:var(--panel-2);border:1px solid var(--line);border-radius:16px;padding:28px;position:sticky;top:90px}
.result h3{font-family:var(--serif);margin:0 0 16px;font-size:21px}
.result .li{display:flex;justify-content:space-between;font-size:14px;color:var(--mut);padding:8px 0;border-bottom:1px dashed var(--line)}
.result .li b{color:var(--ink);font-weight:600}
.result .total{margin:16px 0;display:flex;justify-content:space-between;align-items:baseline}
.result .total .big{font-family:var(--serif);font-size:30px;color:var(--ember)}
.result input{width:100%;background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:12px 14px;color:var(--ink);font:inherit;margin-bottom:9px}
.result input:focus{outline:none;border-color:var(--ember)}
.lp-consent{display:flex;gap:9px;align-items:flex-start;font-size:11px;color:var(--mut);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(--gold);text-decoration:underline}

.feat{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.ft{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.ft .ic{font-size:28px;margin-bottom:12px}.ft h3{font-family:var(--serif);font-size:18px;margin:0 0 6px}.ft p{color:var(--mut);font-size:14px;margin:0}

.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(--panel);border:1px solid var(--line);display:grid;place-items:center;font-family:var(--serif);font-weight:700;font-size:22px;margin:0 auto 12px;color:var(--gold)}
.stp h3{font-family:var(--serif);font-size:18px;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}
.cform{padding:40px;background:var(--panel)}.cform h3{font-family:var(--serif);font-size:24px;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:1px 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(--ember)}
.cinfo{padding:40px;background:var(--panel-2)}
.cinfo h3{font-family:var(--serif);font-size:22px;margin:0 0 22px}
.cinfo .line{display:flex;gap:13px;align-items:center;margin-bottom:16px}
.cinfo .line .ic{width:42px;height:42px;border:1px solid var(--line);border-radius:10px;display:grid;place-items:center;font-size:17px;flex:0 0 auto;color:var(--ember)}
.cinfo .map{margin-top:18px;border:1px solid var(--line);border-radius:10px;overflow:hidden;min-height:160px}
.cinfo .map iframe{width:100%;height:210px;border:0;display:block}
.cinfo .map .stub{display:grid;place-items:center;height:180px;color:var(--mut);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,.4)}
.lp-flash--ok{background:#26301c;border:1px solid #6b8a3f;color:#c6e08a}
.lp-flash--err{background:#331a14;border:1px solid var(--ember);color:#f2b48f}
.lp-flash__close{position:absolute;right:12px;top:50%;transform:translateY(-50%);background:none;border:0;color:inherit;font-size:22px;cursor:pointer}

.footer{border-top:1px solid var(--line);padding:46px 0 28px;color:var(--mut)}
.footer .top{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:24px}
.footer .logo{color:var(--ink);font-family:var(--serif)}
.footer .cols{display:flex;gap:46px;flex-wrap:wrap}
.footer .col b{color:var(--ink);display:block;margin-bottom:12px;font-size:14px}
.footer .col a{display:block;color:var(--mut);font-size:14px;margin-bottom:8px}.footer .col a:hover{color:var(--ember)}
.footer .legal{border-top:1px solid var(--line);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}.hero__img .smoke{animation:none}}

@media(max-width:960px){
  .hero .wrap,.calc,.contact{grid-template-columns:1fr}
  .result{position:static}.types{grid-template-columns:repeat(2,1fr)}.feat{grid-template-columns:repeat(2,1fr)}.steps{grid-template-columns:repeat(2,1fr)}
  .nav{display:none}.burger{display:block}
}
@media(max-width:600px){
  .types,.feat,.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:radial-gradient(circle at 50% 30%,var(--c),#1b120d);border:1px solid var(--line)}
.wk span{position:absolute;left:0;right:0;bottom:0;padding:14px 16px;color:var(--ink);font-weight:700;font-size:14px;background:linear-gradient(transparent,rgba(20,12,8,.85))}
.wk em{display:block;font-style:normal;font-weight:500;font-size:12px;color:var(--mut)}
.revs{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.rv{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:26px}
.rv .st{color:var(--gold);letter-spacing:3px;margin-bottom:12px}
.rv p{font-size:14px;margin:0 0 16px;color:var(--ink)}
.rv .who b{display:block;font-family:var(--serif);font-size:15px}.rv .who span{color:var(--mut);font-size:12px}
.faq{max-width:760px;margin:0 auto}
.faq details{background:var(--panel);border:1px solid var(--line);border-radius:12px;margin-bottom:10px;overflow:hidden}
.faq summary{list-style:none;cursor:pointer;padding:18px 22px;font-family:var(--serif);font-weight:700;font-size:17px;display:flex;justify-content:space-between;gap:14px}
.faq summary::-webkit-details-marker{display:none}
.faq summary .ar{color:var(--ember);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}}