/* =====================================================================
   Папа Строй — дизайн-система 2026
   Светлая основа, синие акценты, стекло, мягкие свечения
   ===================================================================== */
:root{
  --bg:#F8FAFC; --white:#FFFFFF; --ink:#0F172A; --text:#334155; --muted:#64748B;
  --line:#E2E8F0; --line-2:#CBD5E1;
  --blue:#2563EB; --blue-light:#0EA5E9; --blue-deep:#1E40AF; --navy:#0A2540;
  --sky:#E0F2FE; --hover:#DBEAFE;
  --ok:#15803D; --err:#B91C1C;
  --radius:16px; --radius-lg:24px; --radius-sm:12px;
  --shadow:0 1px 2px rgba(15,23,42,.04),0 8px 24px rgba(15,23,42,.05);
  --shadow-hover:0 16px 40px rgba(37,99,235,.14);
  --glass:rgba(255,255,255,.7);
  --grad:linear-gradient(110deg,#2563EB 0%,#0EA5E9 100%);
  --grad-deep:linear-gradient(135deg,#0A2540 0%,#1E40AF 100%);
  --head:'Manrope',system-ui,-apple-system,'Segoe UI',sans-serif;
  --body:'Inter',system-ui,-apple-system,'Segoe UI',sans-serif;
  --display:var(--head);
  --pad:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:24px;-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:rgba(37,99,235,.12)}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
body{margin:0;font-family:var(--body);background:var(--bg);color:var(--text);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%}
a{color:var(--blue);text-decoration-thickness:1px;text-underline-offset:3px}a:hover{color:var(--blue-deep)}
:focus-visible{outline:3px solid rgba(37,99,235,.45);outline-offset:2px;border-radius:6px}
h1,h2,h3,h4,h5,p{margin:0}
h1,h2,h3,h4,h5{font-family:var(--head);color:var(--ink);letter-spacing:-.015em;overflow-wrap:break-word}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.wrap{max-width:1200px;margin:0 auto;padding-left:var(--pad);padding-right:var(--pad)}
.section{padding-top:104px;padding-bottom:104px}
.section-alt{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.grid{display:grid;gap:24px}

/* ---------- заголовки разделов ---------- */
.eyebrow,.kicker{display:inline-flex;align-items:center;gap:8px;align-self:flex-start;padding:6px 14px;border-radius:999px;background:var(--sky);color:var(--blue-deep);font-size:13px;font-weight:600;letter-spacing:.02em}
.eyebrow::before,.kicker::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--blue-light);box-shadow:0 0 0 4px rgba(14,165,233,.18)}
.h2{font-family:var(--head);font-weight:800;font-size:clamp(30px,3.6vw,48px);line-height:1.1;color:var(--ink)}
.head{display:flex;flex-direction:column;gap:14px;max-width:780px;margin-bottom:48px}
.head p{color:var(--muted);font-size:18px}
.head-row{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:16px 32px;margin-bottom:48px}
.head-row .head{margin-bottom:0}
.more-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;text-decoration:none;white-space:nowrap;min-height:44px}
.more-link:hover{gap:10px}

/* ---------- кнопки ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:52px;padding:14px 28px;border-radius:999px;font:inherit;font-weight:600;font-size:16px;text-decoration:none;cursor:pointer;border:1px solid transparent;transition:transform .2s,box-shadow .2s,background .2s,color .2s,border-color .2s;text-align:center;white-space:nowrap}
.btn-primary,.btn-amber,.btn-green,.btn-dark{background:var(--blue);color:#fff;box-shadow:0 8px 20px rgba(37,99,235,.28)}
.btn-primary:hover,.btn-amber:hover,.btn-green:hover,.btn-dark:hover{background:var(--blue-deep);color:#fff;transform:translateY(-2px);box-shadow:0 12px 28px rgba(37,99,235,.34)}
.btn-ghost,.btn-glass{background:var(--glass);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);color:var(--ink);border-color:rgba(37,99,235,.25)}
.btn-ghost:hover,.btn-glass:hover{border-color:var(--blue);color:var(--blue);background:#fff}
.btn-lg{min-height:60px;padding:18px 40px;font-size:18px}
.btn[disabled]{opacity:.6;cursor:wait}
.actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- шапка ---------- */
.site-header{position:relative;z-index:30;background:rgba(248,250,252,.72);-webkit-backdrop-filter:blur(20px) saturate(1.4);backdrop-filter:blur(20px) saturate(1.4);border-bottom:1px solid rgba(226,232,240,.8)}
.hdr{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:16px 32px;min-height:76px}
.logo{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink);flex:none}
.logo:hover{color:var(--ink)}
.logo img{width:44px;height:44px;flex:none;border-radius:12px}
.logo .brand-text{display:flex;flex-direction:column;line-height:1.15}
.logo b{font-family:var(--head);font-weight:800;font-size:18px;letter-spacing:.01em}
.logo small{font-size:12.5px;color:var(--muted)}
.nav{display:flex;align-items:center;justify-content:center;gap:4px}
.nav a{color:var(--text);text-decoration:none;font-weight:500;font-size:15.5px;padding:8px 14px;border-radius:999px;transition:background .15s,color .15s}
.nav a:hover{color:var(--blue);background:var(--sky)}
.nav a[aria-current="page"]{color:var(--blue-deep);background:var(--hover)}
.nav .nav-extra{display:none}
.hdr-right{display:flex;align-items:center;gap:16px}
.hdr-phone{font-weight:600;color:var(--ink);text-decoration:none;white-space:nowrap;font-size:15.5px}
.hdr-phone:hover{color:var(--blue)}
.hdr-right .btn{min-height:44px;padding:10px 20px;font-size:15px;box-shadow:0 6px 16px rgba(37,99,235,.22)}
.burger{display:none;width:46px;height:46px;border:1px solid var(--line-2);border-radius:999px;background:#fff;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.burger span:not(.sr){display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s,opacity .2s}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media (max-width:1180px){.hdr-phone{display:none}}
@media (max-width:980px){
  .hdr{grid-template-columns:auto 1fr auto;min-height:68px}
  .burger{display:flex;justify-self:end}
  .hdr-right{display:none}
  .nav{position:absolute;left:var(--pad);right:var(--pad);top:calc(100% + 8px);flex-direction:column;align-items:stretch;gap:2px;padding:12px;background:rgba(255,255,255,.96);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid var(--line);border-radius:20px;box-shadow:0 20px 50px rgba(15,23,42,.12);display:none}
  .nav.open{display:flex}
  .nav a{padding:14px 16px;font-size:17px;border-radius:12px}
  .nav .nav-extra{display:flex;flex-direction:column;gap:10px;padding:12px 4px 4px;margin-top:6px;border-top:1px solid var(--line)}
  .nav .nav-extra a{padding:0}
  .nav .nav-extra .hdr-phone{display:inline-flex;align-items:center;min-height:44px;font-size:18px}
  .nav .nav-extra .btn{padding:14px 24px;color:#fff}
}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--bg)}
.hero::before{content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(520px 420px at 82% 30%,rgba(14,165,233,.22),transparent 70%),
             radial-gradient(560px 460px at 8% 0%,rgba(37,99,235,.14),transparent 70%),
             radial-gradient(420px 360px at 60% 100%,rgba(224,242,254,.9),transparent 70%)}
.hero::after{content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(37,99,235,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(37,99,235,.06) 1px,transparent 1px);
  background-size:56px 56px;-webkit-mask-image:radial-gradient(ellipse at 70% 40%,#000 0%,transparent 70%);mask-image:radial-gradient(ellipse at 70% 40%,#000 0%,transparent 70%)}
.hero .wrap{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);gap:40px;align-items:center;padding-top:72px;padding-bottom:96px}
.live-chip{display:inline-flex;align-items:center;gap:10px;padding:8px 16px;border-radius:999px;background:var(--glass);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid rgba(226,232,240,.9);font-size:14px;font-weight:500;color:var(--text)}
.live-chip i{width:8px;height:8px;border-radius:50%;background:var(--blue-light);box-shadow:0 0 0 0 rgba(14,165,233,.55);animation:pulse 2.4s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(14,165,233,.55)}70%{box-shadow:0 0 0 10px rgba(14,165,233,0)}100%{box-shadow:0 0 0 0 rgba(14,165,233,0)}}
.hero h1{font-weight:800;font-size:clamp(40px,4.6vw,66px);line-height:1.04;letter-spacing:-.03em;margin:22px 0 22px}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent}
.hero .lead{font-size:clamp(17px,1.4vw,20px);color:var(--text);max-width:580px;margin-bottom:34px}
.hero-art{position:relative;min-width:0;display:flex;justify-content:center}
.hero-art svg{width:100%;max-width:480px;height:auto;filter:drop-shadow(0 30px 50px rgba(37,99,235,.18));animation:hover3d 7s ease-in-out infinite}
@keyframes hover3d{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
.hero-trust{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:30px;color:var(--muted);font-size:15px}
.hero-trust span{display:inline-flex;align-items:center;gap:8px}
.hero-trust span::before{content:"";width:16px;height:16px;border-radius:50%;background:var(--sky) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4.5 8.2l2.2 2.2 4.8-4.8' fill='none' stroke='%232563EB' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/16px no-repeat}
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr;padding-top:44px;padding-bottom:64px;gap:24px}
  .hero-art{display:none}
}
@media (max-width:600px){.hero h1{font-size:clamp(27px,8.4vw,40px)}}

/* ---------- страницы: шапка раздела ---------- */
.page-head{position:relative;overflow:hidden;background:var(--bg);border-bottom:1px solid var(--line);padding:56px 0 48px}
.page-head::before{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(520px 300px at 90% 0%,rgba(14,165,233,.16),transparent 70%),radial-gradient(420px 260px at 0% 100%,rgba(37,99,235,.08),transparent 70%)}
.page-head .wrap{position:relative}
.page-head h1{font-weight:800;font-size:clamp(32px,4vw,52px);line-height:1.08;letter-spacing:-.025em;margin:14px 0 14px}
.page-head p{color:var(--text);max-width:760px;font-size:18px}
.crumbs{font-size:14px;color:var(--muted)}
.crumbs a{color:var(--muted);text-decoration:none}.crumbs a:hover{color:var(--blue)}

/* ---------- карточки ---------- */
.card,.factor,.tech,.step,.stat,.article-card,.contact-card,.terms>div{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s,border-color .25s}
.card:hover,.factor:hover,.tech:hover,.article-card:hover,.contact-card:hover{transform:translateY(-4px);border-color:rgba(37,99,235,.55);box-shadow:var(--shadow-hover)}
.card{padding:32px;display:flex;flex-direction:column;gap:14px}
.card svg{width:52px;height:52px;padding:12px;border-radius:14px;background:var(--sky);stroke:var(--blue);flex:none}
.card h3{font-size:21px;line-height:1.3;font-weight:700}
.card p{color:var(--muted);line-height:1.65}
.tags{display:flex;flex-wrap:wrap;gap:6px;font-size:13.5px;margin-top:auto;padding-top:4px}
.tags span{background:var(--bg);border:1px solid var(--line);color:var(--text);padding:4px 10px;border-radius:999px}
.g-objects{grid-template-columns:repeat(auto-fill,minmax(min(330px,100%),1fr))}
.g-tech{grid-template-columns:repeat(auto-fill,minmax(min(340px,100%),1fr))}
.tech{padding:32px;display:flex;flex-direction:column;gap:12px}
.tech .num{font-family:var(--head);font-weight:800;font-size:15px;color:var(--blue);background:var(--sky);align-self:flex-start;padding:4px 12px;border-radius:999px}
.tech h3{font-size:21px;font-weight:700}
.tech p,.tech ul{color:var(--muted)}
.tech ul{margin:0;padding-left:20px;display:flex;flex-direction:column;gap:6px}
.tech li::marker{color:var(--blue-light)}
.tech.accent{background:var(--sky);border-color:#BAE6FD}

/* факторы цены */
.g-factors{grid-template-columns:repeat(auto-fill,minmax(min(260px,100%),1fr))}
.factor{padding:26px;display:flex;flex-direction:column;gap:10px}
.badge{display:inline-flex;align-items:center;justify-content:center;min-width:48px;height:36px;padding:0 10px;border-radius:10px;background:var(--sky);color:var(--blue-deep);font-family:var(--head);font-weight:800;font-size:14px;align-self:flex-start}
.factor h3{font-size:18px;font-weight:700}
.factor p{color:var(--muted);font-size:15.5px}

/* шаги */
.g-steps{grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));list-style:none;margin:0;padding:0;counter-reset:s}
.step{padding:26px;display:flex;flex-direction:column;gap:8px;position:relative}
.step .n{font-family:var(--head);font-weight:800;font-size:32px;line-height:1;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent}
.step strong{font-family:var(--head);font-size:18px;color:var(--ink)}
.step .t{color:var(--muted);font-size:15.5px}

/* ---------- синий акцентный блок ---------- */
.band{position:relative;overflow:hidden;background:var(--grad-deep);color:#E2E8F0}
.band::before{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(520px 380px at 85% 10%,rgba(14,165,233,.45),transparent 70%),radial-gradient(420px 320px at 5% 100%,rgba(37,99,235,.5),transparent 70%)}
.band::after{content:"";position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:56px 56px;-webkit-mask-image:linear-gradient(180deg,#000,transparent);mask-image:linear-gradient(180deg,#000,transparent)}
.band .wrap{position:relative;z-index:1}
.band .h2{color:#fff}
.band .head p{color:#BFDBFE}
.band .eyebrow{background:rgba(255,255,255,.1);color:#E0F2FE;border:1px solid rgba(255,255,255,.18)}
.g-band{grid-template-columns:repeat(4,minmax(0,1fr))}
.glass-mini{background:rgba(255,255,255,.08);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,.18);border-radius:var(--radius);padding:28px;display:flex;flex-direction:column;gap:10px;box-shadow:inset 0 1px 0 rgba(255,255,255,.12)}
.glass-mini .k{font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:#7DD3FC}
.glass-mini b{font-family:var(--head);font-weight:800;font-size:clamp(24px,2.4vw,32px);line-height:1.1;color:#fff}
.glass-mini p{color:#CBD5E1;font-size:15.5px}
@media (max-width:980px){.g-band{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.g-band{grid-template-columns:1fr}}

/* ---------- портфолио ---------- */
.works-lead{color:var(--muted);max-width:720px}
.g-works{grid-template-columns:repeat(auto-fill,minmax(min(340px,100%),1fr));gap:28px}
.work{background:transparent;border:0;display:flex;flex-direction:column;gap:16px}
.work-photo{position:relative;display:block;padding:0;border:0;background:var(--sky);cursor:zoom-in;width:100%;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow)}
.work-photo img{display:block;width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;transition:transform .5s}
.work-photo::after{content:"Смотреть фото";position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(37,99,235,.28);color:#fff;font-weight:600;font-size:16px;opacity:0;transition:opacity .25s}
.work-photo:hover::after,.work-photo:focus-visible::after{opacity:1}
.work-photo:hover img{transform:scale(1.04)}
.work-count{position:absolute;right:14px;bottom:14px;z-index:1;background:var(--glass);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);color:var(--ink);font-size:13px;font-weight:600;padding:5px 12px;border-radius:999px}
.work-body{padding:0 4px;display:flex;flex-direction:column;gap:8px}
.work-meta{font-size:14px;color:var(--blue);font-weight:600;line-height:1.4}
.work-body h3{font-size:20px;line-height:1.3;font-weight:700}
.work-body p{color:var(--muted);font-size:16px}
.work-facts{margin:2px 0 0;padding:0;list-style:none;display:flex;flex-wrap:wrap;gap:6px}
.work-facts li{background:var(--white);border:1px solid var(--line);font-size:13.5px;padding:4px 10px;border-radius:999px}
.gallery{border:0;padding:0;background:var(--white);color:var(--ink);width:min(1100px,96vw);max-height:94vh;border-radius:var(--radius-lg);box-shadow:0 30px 80px rgba(15,23,42,.3)}
.gallery::backdrop{background:rgba(15,23,42,.6);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
.gallery-top{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:14px 18px}
.gallery-top h3{font-size:17px}
.gallery-close{background:var(--bg);border:1px solid var(--line);color:var(--ink);font-size:26px;line-height:1;width:44px;height:44px;border-radius:50%;cursor:pointer;flex:none}
.gallery-stage{position:relative;min-height:min(60vh,520px);display:flex;align-items:center;justify-content:center;background:#0F172A}
.gallery-stage img{max-width:100%;max-height:76vh;display:block;object-fit:contain}
.gallery-nav{position:absolute;top:50%;transform:translateY(-50%);width:48px;height:48px;border:0;border-radius:50%;background:var(--glass);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);color:var(--ink);font-size:28px;cursor:pointer}
.gallery-nav:hover{background:#fff;color:var(--blue)}
#galleryPrev{left:12px}#galleryNext{right:12px}
.gallery-count{padding:12px 18px 16px;color:var(--muted);font-size:14px}

/* ---------- калькулятор ---------- */
.calc{display:flex;flex-wrap:wrap;gap:24px;align-items:stretch}
.calc-form{flex:999 1 520px;min-width:0;background:var(--white);border:1px solid var(--line);border-radius:var(--radius-lg);padding:32px;display:flex;flex-direction:column;gap:24px;box-shadow:var(--shadow)}
.calc fieldset{border:0;margin:0;padding:0;min-width:0}
.calc legend{font-family:var(--head);font-weight:700;color:var(--ink);margin-bottom:12px;padding:0}
.pills{display:flex;flex-wrap:wrap;gap:8px}
.pill{min-height:44px;padding:8px 18px;border-radius:999px;border:1px solid var(--line-2);background:#fff;color:var(--text);font:inherit;font-size:15px;cursor:pointer;transition:all .15s}
.pill:hover{border-color:var(--blue);color:var(--blue)}
.pill[aria-pressed="true"]{border-color:var(--blue);background:var(--blue);color:#fff;box-shadow:0 6px 16px rgba(37,99,235,.25)}
.dims{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px}
.checks{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(230px,100%),1fr));gap:8px}
.check{display:flex;align-items:center;gap:12px;min-height:50px;padding:0 16px;border:1px solid var(--line);border-radius:var(--radius-sm);cursor:pointer;background:#fff;transition:border-color .15s,background .15s}
.check:hover{border-color:var(--blue);background:var(--bg)}
.check input{width:20px;height:20px;accent-color:var(--blue);flex:none}
.calc-result{flex:1 1 320px;min-width:0;position:relative;overflow:hidden;background:var(--grad-deep);color:#E2E8F0;border-radius:var(--radius-lg);padding:32px;display:flex;flex-direction:column;gap:14px;box-shadow:0 20px 50px rgba(10,37,64,.25)}
.calc-result::before{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(300px 220px at 100% 0%,rgba(14,165,233,.45),transparent 70%)}
.calc-result>*{position:relative}
.calc-result .title{font-family:var(--head);font-weight:700;font-size:19px;color:#fff}
.row{display:flex;justify-content:space-between;gap:12px;border-bottom:1px solid rgba(255,255,255,.12);padding-bottom:10px}
.row span:first-child{color:#94A3B8}
.total{display:flex;flex-direction:column;gap:2px;margin-top:6px}
.total span{color:#94A3B8}
.total output{font-family:var(--head);font-weight:800;font-size:clamp(30px,3.2vw,42px);line-height:1.1;color:#fff}
.note{font-size:14px;color:#94A3B8}
.calc-result .btn{margin-top:auto;background:#fff;color:var(--blue-deep);box-shadow:none}
.calc-result .btn:hover{background:var(--sky);color:var(--blue-deep)}

/* ---------- текстовый блок ---------- */
.prose{max-width:860px}
.prose h2{font-weight:800;font-size:clamp(26px,3vw,38px);line-height:1.15;margin-bottom:18px}
.prose h3{font-size:21px;font-weight:700;margin:36px 0 12px}
.prose p{margin-bottom:14px}
.prose ul{padding-left:22px;margin:0 0 14px}
.prose li{margin-bottom:6px}
.prose li::marker{color:var(--blue-light)}
.regions{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0 6px}
.regions span{background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 14px;font-size:15px}
.terms{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:10px}
.terms>div{padding:20px}
.terms b{display:block;font-family:var(--head);color:var(--ink);margin-bottom:4px}
.terms span{color:var(--muted);font-size:15px}
@media (max-width:700px){.terms{grid-template-columns:1fr}}

/* ---------- отзывы ---------- */
.g-reviews{grid-template-columns:repeat(auto-fill,minmax(min(330px,100%),1fr))}
.review{background:var(--glass);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid var(--line);border-left:3px solid var(--blue);border-radius:var(--radius);padding:28px;display:flex;flex-direction:column;gap:18px;box-shadow:var(--shadow)}
.review p{color:var(--text);font-size:17px}
.review .who{display:flex;align-items:center;gap:14px}
.review .ava{width:48px;height:48px;border-radius:50%;background:var(--grad);color:#fff;font-family:var(--head);font-weight:800;display:flex;align-items:center;justify-content:center;flex:none}
.review .who b{display:block;font-family:var(--head);color:var(--ink)}
.review .who span{font-size:14px;color:var(--muted)}

/* ---------- статьи (карточки) ---------- */
.g-articles{grid-template-columns:repeat(auto-fill,minmax(min(320px,100%),1fr))}
.article-card{padding:28px;display:flex;flex-direction:column;gap:10px;text-decoration:none;color:var(--ink)}
.article-card:hover{color:var(--ink)}
.article-card .cat{font-size:12.5px;font-weight:600;color:var(--blue);letter-spacing:.04em;text-transform:uppercase}
.article-card h3{font-size:19px;line-height:1.3;font-weight:700}
.article-card p{color:var(--muted);font-size:15.5px}
.article-card .more{margin-top:auto;padding-top:6px;color:var(--blue);font-weight:600}

/* ---------- FAQ ---------- */
.faq{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq details{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:0 24px;box-shadow:var(--shadow);transition:border-color .2s,box-shadow .2s}
.faq details[open]{border-color:rgba(37,99,235,.45);box-shadow:var(--shadow-hover)}
.faq summary{cursor:pointer;font-family:var(--head);font-weight:700;color:var(--ink);font-size:17.5px;padding:20px 44px 20px 0;list-style:none;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:0;top:50%;transform:translateY(-50%);width:32px;height:32px;border-radius:50%;background:var(--sky);color:var(--blue);display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:500;transition:transform .2s}
.faq details[open] summary::after{content:"−";background:var(--blue);color:#fff}
.faq details p{color:var(--text);padding-bottom:20px;margin:0}

/* ---------- CTA ---------- */
.cta{position:relative;overflow:hidden;background:var(--white);border:1px solid var(--line);border-radius:32px;padding:56px;display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);gap:32px;align-items:center;box-shadow:var(--shadow)}
.cta::before{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(420px 320px at 100% 50%,rgba(14,165,233,.16),transparent 70%)}
.cta>*{position:relative}
.cta h2{font-weight:800;font-size:clamp(28px,3.4vw,46px);line-height:1.1}
.cta p{color:var(--muted);font-size:18px;margin:16px 0 30px;max-width:520px}
.cta .phone-line{margin-top:16px;color:var(--muted);font-size:15px}
.cta .phone-line a{font-weight:600;color:var(--ink);text-decoration:none}
.cta-art svg{width:100%;max-width:300px;height:auto;display:block;margin:0 auto;filter:drop-shadow(0 24px 40px rgba(37,99,235,.18))}
@media (max-width:860px){.cta{grid-template-columns:1fr;padding:36px}.cta-art{display:none}}
@media (max-width:560px){.cta{padding:28px;border-radius:24px}.cta .btn-lg{width:100%}}
/* старая полоса CTA (внутренние страницы) */
.cta-strip{position:relative;overflow:hidden;background:var(--grad-deep);color:#fff;border-radius:28px;padding:44px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px}
.cta-strip::before{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(400px 260px at 90% 0%,rgba(14,165,233,.45),transparent 70%)}
.cta-strip>*{position:relative}
.cta-strip h2{color:#fff;font-weight:800;font-size:clamp(22px,2.6vw,32px);line-height:1.2;max-width:640px}
.cta-strip p{color:#BFDBFE;margin-top:8px}
.cta-strip .btn-white{background:#fff;color:var(--blue-deep)}.cta-strip .btn-white:hover{background:var(--sky)}
.cta-strip .btn-outline{border-color:rgba(255,255,255,.5);color:#fff;background:rgba(255,255,255,.06)}.cta-strip .btn-outline:hover{background:#fff;color:var(--blue-deep)}
@media (max-width:560px){.cta-strip{padding:28px}.cta-strip .actions .btn{flex:1 1 100%}}

/* ---------- формы ---------- */
.req{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);gap:24px;align-items:start}
.lead-form{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-lg);padding:32px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:18px;position:relative}
.lead-form fieldset{border:0;margin:0;padding:0;min-width:0}
.lead-form legend,.field label{font-family:var(--head);font-weight:700;color:var(--ink);margin-bottom:8px;padding:0;display:block;font-size:15.5px}
.req-mark{color:var(--blue)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{position:relative}
.chip input{position:absolute;opacity:0;inset:0;margin:0;cursor:pointer}
.chip span{display:inline-flex;align-items:center;min-height:44px;padding:8px 16px;border:1px solid var(--line-2);border-radius:999px;background:#fff;font-size:15px;color:var(--text);transition:all .15s}
.chip:hover span{border-color:var(--blue)}
.chip input:checked+span{background:var(--blue);border-color:var(--blue);color:#fff;box-shadow:0 6px 16px rgba(37,99,235,.22)}
.chip input:focus-visible+span{outline:3px solid rgba(37,99,235,.4);outline-offset:2px}
.fields{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column}
.field input,.field textarea,.field select{width:100%;min-height:52px;padding:0 16px;border:1px solid var(--line-2);border-radius:var(--radius-sm);font:inherit;font-size:16px;background:#fff;color:var(--ink);transition:border-color .15s,box-shadow .15s}
.field input:focus,.field textarea:focus{border-color:var(--blue);outline:none;box-shadow:0 0 0 4px rgba(37,99,235,.14)}
.field textarea{padding:14px 16px;min-height:104px;resize:vertical}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--muted);line-height:1.5}
.consent input{width:20px;height:20px;margin:1px 0 0;flex:none;accent-color:var(--blue)}
.lead-form .btn{min-height:56px;font-size:17px}
.form-note{font-size:14px;color:var(--muted)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-status{font-weight:600;min-height:1.4em}
.form-status.ok{color:var(--ok)}.form-status.err{color:var(--err)}
.how{background:var(--sky);border:1px solid #BAE6FD;border-radius:var(--radius-lg);padding:28px;display:flex;flex-direction:column;gap:14px}
.how h3{font-size:20px;font-weight:700}
.how ol{margin:0;padding-left:22px;display:flex;flex-direction:column;gap:10px}
.how li::marker{color:var(--blue);font-weight:700}
.msgr{display:flex;flex-wrap:wrap;gap:8px}
.msgr a{display:inline-flex;align-items:center;min-height:44px;padding:6px 16px;border-radius:999px;background:#fff;border:1px solid #BAE6FD;color:var(--blue-deep);font-weight:600;text-decoration:none;font-size:15px}
.msgr a:hover{background:var(--blue);color:#fff;border-color:var(--blue)}
@media (max-width:900px){.req{grid-template-columns:1fr}}
@media (max-width:560px){.fields{grid-template-columns:1fr}.lead-form{padding:22px}}

/* модальное окно заявки */
.lead-dialog{border:0;padding:0;width:min(520px,94vw);max-height:94vh;border-radius:28px;background:rgba(255,255,255,.92);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);box-shadow:0 30px 80px rgba(15,23,42,.25);color:var(--text)}
.lead-dialog::backdrop{background:rgba(15,23,42,.45);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
.lead-dialog .lead-form{border:0;box-shadow:none;background:transparent;padding:32px}
.lead-dialog .dlg-top{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}
.lead-dialog h2{font-weight:800;font-size:26px;line-height:1.15}
.lead-dialog .dlg-sub{color:var(--muted);font-size:15.5px;margin-top:-6px}
.dlg-close{width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:#fff;font-size:24px;line-height:1;cursor:pointer;color:var(--ink);flex:none}
@media (max-width:560px){.lead-dialog .lead-form{padding:22px}}

/* ---------- контакты / о нас ---------- */
.g-contacts{grid-template-columns:repeat(auto-fill,minmax(min(260px,100%),1fr))}
.contact-card{padding:24px;display:flex;flex-direction:column;gap:6px}
.contact-card .k{font-size:13px;color:var(--blue);font-weight:600;letter-spacing:.04em;text-transform:uppercase}
.contact-card a,.contact-card b{font-family:var(--head);font-size:19px;font-weight:700;color:var(--ink);text-decoration:none;word-break:break-word;min-height:32px;display:inline-flex;align-items:center}
.contact-card a:hover{color:var(--blue)}
.contact-card span{color:var(--muted);font-size:15px}
.req-table{border-collapse:separate;border-spacing:0;width:100%;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.req-table th,.req-table td{border-bottom:1px solid var(--line);padding:14px 18px;text-align:left;vertical-align:top}
.req-table tr:last-child th,.req-table tr:last-child td{border-bottom:0}
.req-table th{width:38%;background:var(--bg);font-weight:600;color:var(--ink)}
@media (max-width:560px){.req-table th,.req-table td{display:block;width:100%}.req-table th{border-bottom:0;padding-bottom:4px}}

/* ---------- подвал (светлый) ---------- */
.site-footer{background:var(--white);border-top:1px solid var(--line);color:var(--text)}
.ftr{display:grid;grid-template-columns:1.4fr 1fr 1.2fr 1fr;gap:40px;padding-top:64px;padding-bottom:40px}
.ftr p{margin-top:16px;font-size:15px;color:var(--muted);max-width:340px}
.ftr h5{margin:0 0 14px;font-family:var(--head);font-size:14px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--ink)}
.ftr ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:4px}
.ftr ul a,.ftr ul span{display:inline-flex;align-items:center;gap:10px;min-height:36px;color:var(--text);text-decoration:none;font-size:15.5px}
.ftr ul a:hover{color:var(--blue)}
.ftr .big{font-family:var(--head);font-weight:700;color:var(--ink)}
.ico{width:20px;height:20px;flex:none;stroke:var(--blue);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.social{display:flex;gap:10px;margin-top:6px}
.social a{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;background:var(--bg);transition:border-color .15s,background .15s}
.social a:hover{border-color:var(--blue);background:var(--sky)}
.legal{border-top:1px solid var(--line);padding-top:22px;padding-bottom:30px;font-size:13.5px;color:var(--muted);display:flex;flex-direction:column;gap:10px}
.legal .links{display:flex;flex-wrap:wrap;gap:6px 22px}
.legal a{color:var(--muted);text-decoration:none;min-height:32px;display:inline-flex;align-items:center}.legal a:hover{color:var(--blue)}
@media (max-width:980px){.ftr{grid-template-columns:1fr 1fr}.ftr>div:first-child{grid-column:1/-1}}
@media (max-width:520px){.ftr{grid-template-columns:1fr;gap:28px;padding-top:44px}.ftr ul a,.legal a{min-height:44px}}

/* ---------- документы ---------- */
.doc{max-width:860px;margin:0 auto;padding:48px var(--pad) 88px}
.doc h1{font-weight:800;font-size:clamp(28px,3.4vw,40px);line-height:1.15;margin-bottom:12px}
.doc .meta{color:var(--muted);margin-bottom:28px}
.doc h2{font-size:21px;font-weight:700;margin:34px 0 10px}
.doc p,.doc li{margin-bottom:10px}
.doc ol,.doc ul{padding-left:22px;margin:0 0 12px}
.doc .req{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 24px;margin:16px 0;box-shadow:var(--shadow)}
.doc .req p{margin:0 0 4px;color:var(--ink)}
.doc .docnav{display:flex;flex-wrap:wrap;gap:8px 22px;margin-top:44px;padding-top:22px;border-top:1px solid var(--line)}
.doc .docnav a{min-height:44px;display:inline-flex;align-items:center}

/* ---------- статья ---------- */
.article{max-width:860px;margin:0 auto;padding:48px var(--pad) 80px}
.article .crumbs{margin-bottom:20px}
.article h1{font-weight:800;font-size:clamp(30px,3.8vw,48px);line-height:1.1;letter-spacing:-.025em;margin-bottom:14px}
.article .meta{color:var(--muted);font-size:15px;margin-bottom:28px}
.article .lead{font-size:clamp(18px,1.5vw,20px);color:var(--ink);margin-bottom:28px;line-height:1.55}
.article h2{font-weight:800;font-size:clamp(24px,2.6vw,32px);line-height:1.2;margin:48px 0 16px}
.article h3{font-weight:700;font-size:21px;margin:30px 0 10px}
.article p{margin:0 0 16px;color:var(--text)}
.article ul,.article ol{margin:0 0 18px;padding-left:22px;color:var(--text)}
.article li{margin-bottom:8px}
.article li::marker{color:var(--blue-light)}
.toc{background:var(--glass);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid var(--line);border-radius:var(--radius);padding:22px 26px;margin:0 0 32px;box-shadow:var(--shadow)}
.toc b{display:block;margin-bottom:10px;font-family:var(--head);color:var(--ink)}
.toc ol{margin:0}
.toc a{text-decoration:none}.toc a:hover{text-decoration:underline}
.note-box{background:var(--sky);border:1px solid #BAE6FD;border-left:3px solid var(--blue);border-radius:var(--radius-sm);padding:18px 22px;margin:22px 0}
.note-box p:last-child{margin-bottom:0}
.table-wrap{overflow-x:auto;margin:0 0 22px;-webkit-overflow-scrolling:touch;border-radius:var(--radius);border:1px solid var(--line);background:#fff;box-shadow:var(--shadow)}
.table-wrap table{border-collapse:collapse;width:100%;min-width:560px}
.table-wrap th,.table-wrap td{border-bottom:1px solid var(--line);padding:12px 14px;text-align:left;vertical-align:top;font-size:15px}
.table-wrap tr:last-child td{border-bottom:0}
.table-wrap th{background:var(--bg);font-family:var(--head);color:var(--ink);font-weight:700}
.norms td:first-child{white-space:nowrap;font-weight:600;color:var(--ink)}
.article figure{margin:32px 0;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}
.article figure img{display:block;width:100%;height:auto;border-radius:10px}
.article figcaption{font-size:14px;color:var(--muted);margin-top:12px;line-height:1.5}
.fig-zoom{display:block;cursor:zoom-in}
.cta-box{position:relative;overflow:hidden;background:var(--grad-deep);border-radius:var(--radius-lg);padding:32px;margin:48px 0 0;display:flex;flex-direction:column;gap:12px;color:#CBD5E1}
.cta-box::before{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(320px 220px at 100% 0%,rgba(14,165,233,.45),transparent 70%)}
.cta-box>*{position:relative}
.cta-box h2{margin:0!important;font-size:24px;color:#fff}
.cta-box p{color:#BFDBFE!important}
.cta-box .btn-amber,.cta-box .btn-primary{background:#fff;color:var(--blue-deep);box-shadow:none}
.cta-box .btn-ghost{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.4)}
.cta-box .btn-ghost:hover{background:#fff;color:var(--blue-deep)}
@media (max-width:560px){.norms td:first-child{white-space:normal}}

/* ---------- появление ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- мобильная адаптация ---------- */
@media (max-width:980px){
  .crumbs a{display:inline-block;padding:10px 0}
}
@media (max-width:600px){
  :root{--pad:16px}
  body{font-size:16px}
  .section{padding-top:64px;padding-bottom:64px}
  .head,.head-row{margin-bottom:30px}
  .head-row{flex-direction:column;align-items:flex-start;gap:6px}
  .head p{font-size:16.5px}
  .card,.tech,.factor,.step{padding:22px}
  .actions .btn{flex:1 1 100%}
  .page-head{padding:34px 0 30px}
  .logo img{width:40px;height:40px}
  .logo b{font-size:16px}
  .logo small{font-size:12px}
  .calc-form,.calc-result{padding:22px}
  .gallery{width:100vw;max-width:100vw;max-height:100vh;border-radius:0}
  .gallery-stage{min-height:50vh}
  .faq details{padding:0 18px}
  .article figure{padding:10px;margin:24px calc(-1 * var(--pad));border-left:0;border-right:0;border-radius:0}
  .fig-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
  .fig-scroll img{min-width:640px}
  .article figure figcaption::before{content:"Листайте схему вбок или нажмите, чтобы открыть крупно. ";display:block;color:var(--blue);font-weight:600;margin-bottom:4px}
  .article .table-wrap{overflow:visible;border:0;background:transparent;box-shadow:none}
  .article .table-wrap table{min-width:0}
  .article .table-wrap thead{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
  .article .table-wrap tr{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;margin-bottom:10px;box-shadow:var(--shadow)}
  .article .table-wrap td{display:block;border:0;padding:4px 0;white-space:normal}
  .article .table-wrap td[data-label]::before{content:attr(data-label);display:block;font-size:12px;font-weight:600;color:var(--blue);text-transform:uppercase;letter-spacing:.05em}
  .article .table-wrap td:first-child{font-weight:700;font-size:16px;color:var(--ink)}
  .article .table-wrap td:first-child::before{display:none}
}
@media (max-width:360px){.logo small{display:none}}
.hero-art svg{filter:none}.cta-art svg{filter:none}
.glass-mini b{font-size:clamp(22px,2vw,28px);overflow-wrap:break-word;hyphens:auto}
.total output{font-size:clamp(28px,2.6vw,36px)}
@media (max-width:900px){.hero-grid{grid-template-columns:minmax(0,1fr)}}
@media (max-width:600px){.btn{white-space:normal}.btn-lg{padding:16px 24px;font-size:17px}.live-chip{font-size:13px}}
.contact-card a,.contact-card b{font-size:17.5px}

/* =====================================================================
   ТЗ, часть 2: стекло на карточках, свечения на фонах секций,
   только мягкие синеватые тени, без тёмных фонов (кроме синего блока)
   ===================================================================== */
:root{
  --shadow:0 1px 2px rgba(37,99,235,.05),0 10px 30px rgba(37,99,235,.07);
  --shadow-hover:0 18px 44px rgba(37,99,235,.16);
  --glass-line:rgba(255,255,255,.85);
}

/* --- мягкие светящиеся градиенты на фонах секций --- */
main>.section{position:relative;background:
  radial-gradient(700px 420px at 100% 0%,rgba(14,165,233,.10),transparent 70%),
  radial-gradient(640px 420px at 0% 100%,rgba(37,99,235,.08),transparent 70%),var(--bg)}
main>.section:nth-of-type(even){background:
  radial-gradient(700px 420px at 0% 0%,rgba(37,99,235,.09),transparent 70%),
  radial-gradient(640px 420px at 100% 100%,rgba(14,165,233,.11),transparent 70%),var(--bg)}
main>.section-alt{background:
  radial-gradient(760px 460px at 85% 10%,rgba(14,165,233,.12),transparent 70%),
  radial-gradient(620px 420px at 10% 90%,rgba(37,99,235,.08),transparent 70%),#F1F7FD!important}
.section-alt{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
main>.band{background:var(--grad-deep)!important}

/* --- glassmorphism на карточках --- */
.card,.factor,.tech,.step,.article-card,.contact-card,.terms>div,.faq details,.toc,.review,.lead-form,.calc-form,.req-table,.doc .req,.table-wrap,.article figure{
  background:rgba(255,255,255,.7)!important;-webkit-backdrop-filter:blur(20px) saturate(1.3);backdrop-filter:blur(20px) saturate(1.3);
  border:1px solid var(--glass-line)!important;box-shadow:var(--shadow)}
.card:hover,.factor:hover,.tech:hover,.article-card:hover,.contact-card:hover{border-color:rgba(37,99,235,.45)!important;box-shadow:var(--shadow-hover)}
.faq details[open]{border-color:rgba(37,99,235,.4)!important}
.tech.accent{background:rgba(224,242,254,.75)!important}
.how{background:rgba(224,242,254,.7);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid var(--glass-line)}
.tags span,.work-facts li,.regions span{background:rgba(255,255,255,.75);border-color:var(--glass-line)}
.work-photo{box-shadow:var(--shadow)}

/* --- кнопки: лёгкое синее свечение при наведении --- */
.btn-primary:hover,.btn-amber:hover,.btn-green:hover,.btn-dark:hover{box-shadow:0 0 0 4px rgba(37,99,235,.12),0 12px 30px rgba(37,99,235,.38)}
.btn-ghost:hover,.btn-glass:hover{box-shadow:0 0 0 4px rgba(14,165,233,.12),0 10px 26px rgba(14,165,233,.22)}

/* --- «Ваш расчёт»: светлое стекло вместо тёмной панели --- */
.calc-result{background:rgba(255,255,255,.75)!important;-webkit-backdrop-filter:blur(20px) saturate(1.3);backdrop-filter:blur(20px) saturate(1.3);
  border:1px solid var(--glass-line);color:var(--text);box-shadow:0 0 0 1px rgba(37,99,235,.18),0 18px 44px rgba(37,99,235,.16)}
.calc-result::before{background:radial-gradient(320px 220px at 100% 0%,rgba(14,165,233,.18),transparent 70%)}
.calc-result .title{color:var(--ink)}
.row{border-bottom-color:var(--line)}
.row span:first-child,.total span,.note{color:var(--muted)}
.row span:last-child{color:var(--ink);font-weight:600}
.total output{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent}
.calc-result .btn{background:var(--blue);color:#fff;box-shadow:0 8px 20px rgba(37,99,235,.28)}
.calc-result .btn:hover{background:var(--blue-deep);color:#fff}

/* --- CTA на внутренних страницах и в статьях: светлые --- */
.cta-strip,.cta-box{background:rgba(255,255,255,.72)!important;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);
  border:1px solid var(--glass-line);box-shadow:0 0 0 1px rgba(37,99,235,.12),var(--shadow);color:var(--text)}
.cta-strip::before,.cta-box::before{background:radial-gradient(420px 280px at 100% 0%,rgba(14,165,233,.18),transparent 70%)}
.cta-strip h2,.cta-box h2{color:var(--ink)!important}
.cta-strip p,.cta-box p{color:var(--muted)!important}
.cta-strip .btn-white,.cta-box .btn-amber,.cta-box .btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 20px rgba(37,99,235,.28)}
.cta-strip .btn-white:hover,.cta-box .btn-amber:hover,.cta-box .btn-primary:hover{background:var(--blue-deep);color:#fff}
.cta-strip .btn-outline,.cta-box .btn-ghost{background:rgba(255,255,255,.7);color:var(--ink);border-color:rgba(37,99,235,.3)}
.cta-strip .btn-outline:hover,.cta-box .btn-ghost:hover{background:#fff;color:var(--blue)}

/* --- окна: светлые, затемнение мягкое и синеватое --- */
.gallery,.lead-dialog{box-shadow:0 30px 80px rgba(30,64,175,.22)}
.gallery::backdrop,.lead-dialog::backdrop{background:rgba(30,64,175,.18);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}
.gallery-stage{background:#EEF4FB}
.gallery-nav{box-shadow:0 6px 18px rgba(37,99,235,.18)}

/* --- плавное появление 380 мс --- */
.reveal{transform:translateY(14px);transition:opacity .38s ease-out,transform .38s ease-out}

/* --- мобильные: стекло легче для производительности, крупные тач-таргеты --- */
@media (max-width:600px){
  .card,.factor,.tech,.step,.article-card,.contact-card,.terms>div,.faq details,.toc,.review,.lead-form,.calc-form,.calc-result,.cta-strip,.cta-box{-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}
  .faq summary{min-height:56px}
}

/* =====================================================================
   ТЗ, часть 3: спокойный соразмерный подвал, без гигантских кнопок
   ===================================================================== */
:root{
  --shadow:0 1px 2px rgba(37,99,235,.05),0 6px 18px rgba(37,99,235,.06);
  --shadow-hover:0 12px 28px rgba(37,99,235,.14);
}
.btn-primary,.btn-amber,.btn-green,.btn-dark{box-shadow:0 6px 16px rgba(37,99,235,.24)}
.btn-primary:hover,.btn-amber:hover,.btn-green:hover,.btn-dark:hover{box-shadow:0 0 0 4px rgba(37,99,235,.12),0 10px 22px rgba(37,99,235,.3)}

/* --- подвал --- */
.site-footer{background:rgba(255,255,255,.8);border-top:1px solid #E2E8F0}
.ftr{grid-template-columns:1.5fr 1fr 1.4fr .9fr;gap:32px 40px;padding-top:56px;padding-bottom:36px}
.ftr .logo img{width:32px;height:32px;border-radius:9px}
.ftr .logo b{font-size:15px}
.ftr .logo small{font-size:12px}
.ftr p{font-size:14px;color:#64748B;margin-top:14px;max-width:320px;line-height:1.6}
.ftr h5{font-size:12.5px;font-weight:700;letter-spacing:.08em;color:#0F172A;margin-bottom:12px}
.ftr ul{gap:2px}
.ftr ul a,.ftr ul span{font-size:14px;color:#64748B;min-height:30px;gap:8px;line-height:1.5}
.ftr ul a:hover{color:var(--blue)}
.ftr ul .big{font-family:var(--body);font-weight:500;color:#64748B}
.ftr .ico{width:16px;height:16px;stroke-width:1.7}
.social{display:flex;flex-wrap:nowrap;gap:12px;margin:2px 0 8px}
.social a{width:32px;height:32px;border:0;border-radius:8px;background:transparent;padding:0;display:inline-flex;align-items:center;justify-content:center;transition:background .15s}
.social a:hover{background:var(--sky);border:0}
.social .ico{width:24px;height:24px;stroke-width:1.6}
.ftr-note{font-size:14px;color:#64748B}
.legal{border-top:1px solid #E2E8F0;padding-top:20px;padding-bottom:28px;font-size:13px;color:#64748B;gap:8px}
.legal .links{gap:4px 20px}
.legal a{font-size:14px;color:#64748B;min-height:28px}
@media (max-width:980px){.ftr{grid-template-columns:1fr 1fr}.ftr>div:first-child{grid-column:1/-1}}
@media (max-width:600px){
  .ftr{grid-template-columns:1fr;gap:26px;padding-top:40px;padding-bottom:24px}
  .ftr .nav-col ul{flex-direction:row;flex-wrap:wrap;gap:0 18px}
  .ftr ul a,.ftr ul span,.legal a{min-height:36px}
  .legal .links{flex-direction:column;gap:0}
}

/* --- кнопки на телефоне: по размеру текста, не на всю ширину --- */
@media (max-width:600px){
  .actions .btn,.cta-strip .actions .btn{flex:0 1 auto}
  .btn-lg{min-height:50px;padding:13px 26px;font-size:16px}
  .cta .btn-lg{width:auto}
  .calc-result .btn{align-self:flex-start}
  .nav .nav-extra .btn{align-self:flex-start;min-height:46px;padding:11px 22px}
  .hero .actions{gap:10px}
}
.calc-result .btn{align-self:flex-start}

/* =====================================================================
   ТЗ, версия 2: спокойнее, соразмернее, ближе к минимализму
   ===================================================================== */
/* шапка: закреплена, но прячется при прокрутке вниз и появляется при прокрутке вверх */
.site-header{position:sticky!important;top:0;transition:transform .3s ease,box-shadow .3s ease,background .3s ease;will-change:transform}
.site-header.is-hidden{transform:translateY(-100%)}
.site-header.is-scrolled{box-shadow:0 4px 16px rgba(37,99,235,.08);background:rgba(248,250,252,.82)}
html{scroll-padding-top:88px}

/* типографика: H1 48–64px на компьютере, H2 спокойнее */
.hero h1{font-size:clamp(40px,4.4vw,64px)}
.h2{font-size:clamp(28px,3.2vw,44px)}
.cta h2{font-size:clamp(26px,3vw,40px)}
@media (max-width:600px){.hero h1{font-size:clamp(27px,8.2vw,38px)}}

/* кнопки обычного размера */
.btn{min-height:48px;padding:12px 24px;font-size:15.5px}
.hero .actions .btn{min-height:50px;padding:13px 26px;font-size:16px}

/* иконки услуг 40px, линейные */
.card svg{width:40px;height:40px;padding:8px;border-radius:12px}

/* декоративная 3D-абстракция — умеренного размера и без постоянного движения */
.hero-art svg{max-width:380px;animation:none}
.cta-art svg{max-width:220px}
.hero-grid{padding-top:64px;padding-bottom:84px}