:root{
  --c-dark:#101826;
  --c-dark-2:#16233a;
  --c-blue:#1e3a5f;
  --c-accent:#ff6a2b;
  --c-accent-2:#ff8a4c;
  --c-line:#e3e7ee;
  --c-line-2:#2a3a52;
  --c-text:#1c2431;
  --c-text-muted:#5b6674;
  --c-bg:#ffffff;
  --c-bg-soft:#f5f7fa;
  --c-white:#ffffff;
  --radius:10px;
  --shadow-sm:0 1px 3px rgba(16,24,38,.06);
  --shadow-md:0 8px 24px rgba(16,24,38,.10);
  --maxw:1200px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  color:var(--c-text);
  background:var(--c-bg);
  line-height:1.6;
  font-size:16px;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none;margin:0;padding:0}
h1,h2,h3,h4{margin:0 0 .5em;line-height:1.25;font-weight:700;letter-spacing:-.01em}
p{margin:0 0 1em}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.section{padding:64px 0}
.section--soft{background:var(--c-bg-soft)}
.section-head{max-width:640px;margin:0 0 36px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-block;color:var(--c-accent);font-weight:700;font-size:.8rem;
  letter-spacing:.08em;text-transform:uppercase;margin-bottom:10px;
}
.section-head h2{font-size:clamp(1.5rem,2.4vw,2.1rem)}
.section-head p{color:var(--c-text-muted);font-size:1.02rem}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:8px;font-weight:600;font-size:.96rem;
  border:1px solid transparent;cursor:pointer;transition:.18s ease;
}
.btn-primary{background:var(--c-accent);color:#fff}
.btn-primary:hover{background:#e85c1f}
.btn-outline{background:transparent;color:var(--c-dark);border-color:var(--c-line)}
.btn-outline:hover{border-color:var(--c-dark);background:var(--c-bg-soft)}
.btn-ghost-light{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.35)}
.btn-ghost-light:hover{background:rgba(255,255,255,.18)}
.btn-block{width:100%}
.btn-sm{padding:9px 16px;font-size:.86rem}

/* Header */
.site-header{
  position:sticky;top:0;z-index:100;background:var(--c-white);
  border-bottom:1px solid var(--c-line);
}
.topbar{
  background:var(--c-dark);color:#c8d1dd;font-size:.82rem;
}
.topbar .container{display:flex;justify-content:space-between;align-items:center;height:36px}
.topbar a{color:#c8d1dd}
.topbar a:hover{color:#fff}
.topbar .topbar-links{display:flex;gap:18px}
.topbar .topbar-links span{opacity:.65;margin-right:4px}

.navwrap{display:flex;align-items:center;justify-content:space-between;height:76px;gap:24px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.25rem;color:var(--c-dark);white-space:nowrap}
.logo .logo-img{height:auto;width:180px;aspect-ratio:16/9;object-fit:contain}
.logo span.sub{display:block;font-size:.62rem;font-weight:600;color:var(--c-text-muted);letter-spacing:.04em;text-transform:uppercase}

.main-nav{display:flex;gap:2px;flex:1;justify-content:center}
.main-nav > li{position:relative}
.main-nav > li > a{
  display:flex;align-items:center;gap:5px;padding:10px 14px;border-radius:6px;font-weight:600;font-size:.92rem;color:var(--c-dark);
}
.main-nav > li > a:hover{background:var(--c-bg-soft);color:var(--c-accent)}
.main-nav .chev{font-size:.6rem;opacity:.6;transition:.15s}
.dropdown{
  position:absolute;top:100%;left:0;background:#fff;border:1px solid var(--c-line);
  border-radius:10px;box-shadow:var(--shadow-md);min-width:280px;padding:10px;
  opacity:0;visibility:hidden;transform:translateY(6px);transition:.16s ease;z-index:50;
}
.main-nav > li:hover .dropdown,.main-nav > li.open .dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.main-nav > li:hover .chev{transform:rotate(180deg)}
.dropdown a{display:block;padding:9px 12px;border-radius:6px;font-size:.88rem;color:var(--c-text)}
.dropdown a:hover{background:var(--c-bg-soft);color:var(--c-accent)}

.header-cta{display:flex;align-items:center;gap:14px}
.header-phone{font-weight:700;font-size:1rem;color:var(--c-dark)}
.header-phone small{display:block;font-weight:500;font-size:.7rem;color:var(--c-text-muted)}
.burger{display:none;width:44px;height:44px;border-radius:8px;border:1px solid var(--c-line);background:#fff;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:4px}
.burger span{width:20px;height:2px;background:var(--c-dark);display:block;transition:.2s}
.burger.active span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.burger.active span:nth-child(2){opacity:0}
.burger.active span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* Mobile nav panel */
.mobile-nav{display:none;position:absolute;height: fit-content;inset:76px 0 0 0;background:#fff;z-index:99;overflow-y:auto;padding:16px 20px 40px;border-top:1px solid var(--c-line)}
.mobile-nav.open{display:block}
.mobile-nav details{border-bottom:1px solid var(--c-line);padding:6px 0}
.mobile-nav summary{padding:12px 4px;font-weight:700;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center}
.mobile-nav summary::-webkit-details-marker{display:none}
.mobile-nav a{display:block;padding:10px 4px;color:var(--c-text)}
.mobile-nav .mn-sub a{padding-left:14px;color:var(--c-text-muted);font-size:.92rem}
.mobile-nav .mn-cta{margin-top:18px;display:flex;flex-direction:column;gap:10px}

/* Breadcrumbs */
.breadcrumbs{padding:14px 0;font-size:.84rem;color:var(--c-text-muted);border-bottom:1px solid var(--c-line);background:var(--c-bg-soft)}
.breadcrumbs ol{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.breadcrumbs li{display:flex;align-items:center;gap:6px}
.breadcrumbs li:not(:last-child)::after{content:"/";opacity:.5;margin-left:6px}
.breadcrumbs a:hover{color:var(--c-accent)}
.breadcrumbs li[aria-current] {color:var(--c-dark);font-weight:600}

/* Hero (home) */
.hero{
  position:relative;background:linear-gradient(135deg,var(--c-dark) 0%,var(--c-blue) 100%);
  color:#fff;overflow:hidden;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(600px 300px at 85% 20%,rgba(255,106,43,.22),transparent 70%);
  pointer-events:none;
}
.hero .container{position:relative;padding:78px 20px 70px;display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);padding:7px 14px;border-radius:30px;font-size:.8rem;font-weight:600;margin-bottom:20px}
.hero h1{font-size:clamp(1.9rem,3.6vw,3rem);margin-bottom:16px}
.hero h1 .accent{color:var(--c-accent-2)}
.hero p.lead{color:#cdd6e3;font-size:1.08rem;max-width:560px;margin-bottom:26px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:34px}
.hero-stats{display:flex;gap:28px;flex-wrap:wrap}
.hero-stats div b{display:block;font-size:1.5rem;color:#fff}
.hero-stats div span{font-size:.8rem;color:#aeb9c9}
.hero-visual{position:relative;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.15);border-radius:16px;padding:18px}
.hero-visual img{border-radius:10px;width:100%;aspect-ratio:4/3;object-fit:cover;background:#22314a}
.hero-badge{position:absolute;bottom:-18px;left:-18px;background:#fff;color:var(--c-dark);padding:14px 18px;border-radius:12px;box-shadow:var(--shadow-md);font-weight:700;font-size:.9rem;display:flex;gap:10px;align-items:center}
.hero-badge .dot{width:10px;height:10px;border-radius:50%;background:#20c26b}

/* Trust bar */
.trustbar{border-bottom:1px solid var(--c-line);background:#fff}
.trustbar .container{display:flex;flex-wrap:wrap;gap:28px;justify-content:space-between;padding:22px 20px;font-size:.85rem;color:var(--c-text-muted)}
.trustbar strong{color:var(--c-dark)}

/* Category / product grid */
.grid{display:grid;gap:22px}
.grid.cols-4{grid-template-columns:repeat(4,1fr)}
.grid.cols-3{grid-template-columns:repeat(3,1fr)}
.grid.cols-2{grid-template-columns:repeat(2,1fr)}

.cat-card{
  border:1px solid var(--c-line);border-radius:var(--radius);background:#fff;padding:22px;
  transition:.18s ease;display:flex;flex-direction:column;gap:10px;
}
.cat-card:hover{border-color:var(--c-dark);box-shadow:var(--shadow-md);transform:translateY(-3px)}
.cat-card .icon{width:46px;height:46px;border-radius:9px;background:var(--c-bg-soft);display:flex;align-items:center;justify-content:center;font-size:1.3rem}
.cat-card h3{font-size:1.05rem}
.cat-card p{color:var(--c-text-muted);font-size:.9rem;margin-bottom:4px}
.cat-card .more{font-weight:700;color:var(--c-accent);font-size:.86rem;margin-top:auto}

.product-card{
  border:1px solid var(--c-line);border-radius:var(--radius);background:#fff;overflow:hidden;
  display:flex;flex-direction:column;transition:.18s ease;
}
.product-card:hover{box-shadow:var(--shadow-md);border-color:#c9d2de;transform:translateY(-3px)}
.product-card .thumb{aspect-ratio:4/3;background:var(--c-bg-soft);overflow:hidden;position:relative}
.product-card .thumb img{width:100%;height:100%;object-fit:cover}
.product-card .badge{position:absolute;top:10px;left:10px;background:var(--c-dark);color:#fff;font-size:.72rem;font-weight:700;padding:4px 10px;border-radius:20px}
.product-card .body{padding:18px;display:flex;flex-direction:column;gap:8px;flex:1}
.product-card h3{font-size:1rem}
.product-card p{color:var(--c-text-muted);font-size:.87rem;margin-bottom:0}
.product-card .price-row{margin-top:auto;display:flex;justify-content:space-between;align-items:center;padding-top:10px}
.product-card .price{font-weight:800;color:var(--c-dark);font-size:1.05rem}

/* Steps */
.steps{counter-reset:step;display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.step{border:1px solid var(--c-line);border-radius:var(--radius);padding:24px 20px;position:relative}
.step::before{
  counter-increment:step;content:counter(step);
  width:34px;height:34px;border-radius:8px;background:var(--c-dark);color:var(--c-accent-2);
  display:flex;align-items:center;justify-content:center;font-weight:800;margin-bottom:14px;
}
.step h3{font-size:1rem}
.step p{color:var(--c-text-muted);font-size:.88rem;margin:0}

/* Keyword cloud / tags */
.tagcloud{display:flex;flex-wrap:wrap;gap:10px}
.tagcloud a{border:1px solid var(--c-line);padding:8px 14px;border-radius:30px;font-size:.85rem;color:var(--c-text)}
.tagcloud a:hover{border-color:var(--c-accent);color:var(--c-accent)}

/* Content page layout */
.page-layout{display:grid;grid-template-columns:2.2fr 1fr;gap:40px;align-items:start}
.article{border:1px solid var(--c-line);border-radius:var(--radius);padding:30px;background:#fff}
.article h1{font-size:clamp(1.5rem,2.6vw,2rem)}
.article .lead{font-size:1.05rem;color:var(--c-text-muted)}
.article h2{font-size:1.3rem;margin-top:1.6em}
.article h3{font-size:1.08rem;margin-top:1.2em}
.article ul{margin:0 0 1em}
.article ul li{position:relative;padding-left:22px;margin-bottom:8px}
.article ul li::before{content:"";position:absolute;left:0;top:.55em;width:7px;height:7px;border-radius:2px;background:var(--c-accent)}
.article .figure{margin:22px 0;border:1px solid var(--c-line);border-radius:8px;overflow:hidden}
.article .figure img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--c-bg-soft)}
.article .figure figcaption{padding:10px 14px;font-size:.82rem;color:var(--c-text-muted);border-top:1px solid var(--c-line)}
.article table{width:100%;border-collapse:collapse;margin:1em 0;font-size:.92rem}
.article table th,.article table td{border:1px solid var(--c-line);padding:10px 12px;text-align:left}
.article table th{background:var(--c-bg-soft)}

.sidebar{position:sticky;top:92px;display:flex;flex-direction:column;gap:20px}
.side-card{border:1px solid var(--c-line);border-radius:var(--radius);padding:22px;background:#fff}
.side-card h4{font-size:1rem;margin-bottom:12px}
.side-card ul li{padding:8px 0;border-bottom:1px solid var(--c-line);font-size:.9rem}
.side-card ul li:last-child{border-bottom:none}
.side-card.cta-card{background:var(--c-dark);color:#fff;border-color:var(--c-dark)}
.side-card.cta-card h4{color:#fff}
.side-card.cta-card p{color:#c8d1dd;font-size:.88rem}

/* FAQ accordion */
.faq-item{border:1px solid var(--c-line);border-radius:8px;margin-bottom:10px;overflow:hidden}
.faq-q{width:100%;text-align:left;background:#fff;border:none;padding:16px 18px;font-weight:700;font-size:.95rem;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:10px}
.faq-q .plus{font-size:1.2rem;color:var(--c-accent);transition:.2s}
.faq-item.open .plus{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease;padding:0 18px;color:var(--c-text-muted);font-size:.9rem}
.faq-item.open .faq-a{padding-bottom:16px}

/* Form */
.form-card{border:1px solid var(--c-line);border-radius:var(--radius);padding:26px;background:#fff}
.form-row{margin-bottom:14px}
.form-row label{display:block;font-size:.85rem;font-weight:600;margin-bottom:6px}
.form-row input,.form-row textarea,.form-row select{
  width:100%;padding:11px 13px;border:1px solid var(--c-line);border-radius:7px;font-size:.92rem;font-family:inherit;
}
.form-row input:focus,.form-row textarea:focus,.form-row select:focus{outline:2px solid var(--c-accent);border-color:var(--c-accent)}
.form-msg{margin-top:10px;font-size:.86rem;display:none}
.form-msg.show{display:block}
.form-msg.ok{color:#1a8f4c}
.form-msg.err{color:#d1451f}
.consent{font-size:.78rem;color:var(--c-text-muted);margin-top:10px}

/* CTA band */
.cta-band{background:var(--c-dark);color:#fff;border-radius:16px;padding:44px 40px;display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap}
.cta-band h2{font-size:1.5rem;margin-bottom:6px}
.cta-band p{color:#c8d1dd;margin:0}

/* Reviews */
.review-card{border:1px solid var(--c-line);border-radius:var(--radius);padding:20px;background:#fff}
.review-card .stars{color:#f5a623;font-size:.9rem;margin-bottom:8px}
.review-card p{font-size:.9rem;color:var(--c-text)}
.review-card .who{font-size:.82rem;color:var(--c-text-muted);font-weight:700;margin-top:10px}

/* Footer */
.site-footer{background:var(--c-dark);color:#c8d1dd;margin-top:60px}
.footer-top{padding:56px 14px 36px;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:34px}
.footer-top h4{color:#fff;font-size:.92rem;margin-bottom:16px}
.footer-top li{margin-bottom:9px;font-size:.88rem}
.footer-top a:hover{color:#fff}
.footer-brand .logo{color:#fff}
.footer-brand p{font-size:.86rem;color:#9fabbd;margin:14px 0 18px;max-width:300px}
.footer-social{display:flex;gap:10px}
.footer-social a{width:36px;height:36px;border-radius:8px;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:18px 14px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:.8rem;color:#8b97a9}

/* Back to top */
.back-to-top{position:fixed;right:22px;bottom:22px;width:46px;height:46px;border-radius:50%;background:var(--c-dark);color:#fff;display:flex;align-items:center;justify-content:center;border:none;cursor:pointer;box-shadow:var(--shadow-md);opacity:0;pointer-events:none;transition:.2s;z-index:80}
.back-to-top.show{opacity:1;pointer-events:auto}

/* Utility */
.mt-0{margin-top:0}
.text-center{text-align:center}
.badge-list{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0}
.badge-list span{background:var(--c-bg-soft);border:1px solid var(--c-line);padding:6px 12px;border-radius:20px;font-size:.8rem;font-weight:600}

/* ===== Tablet ===== */
@media (max-width:1024px){
  .hero .container{grid-template-columns:1fr;gap:32px}
  .hero-visual{max-width:520px}
  .grid.cols-4{grid-template-columns:repeat(2,1fr)}
  .grid.cols-3{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .page-layout{grid-template-columns:1fr}
  .sidebar{position:static}
  .footer-top{grid-template-columns:1fr 1fr}
  .main-nav{display:none}
}
@media (max-width:1024px){
  .burger{display:flex}
}

/* ===== Mobile ===== */
@media (max-width:640px){
  .section{padding:44px 0}
  .navwrap{height:66px}
  .mobile-nav{inset:100% 0 0 0}
  .hero .container{padding:44px 16px 40px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-stats{gap:18px}
  .grid.cols-4,.grid.cols-3,.grid.cols-2{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .cta-band{flex-direction:column;text-align:center;padding:32px 22px}
  .footer-top{grid-template-columns:1fr;padding:40px 14px 24px}
  .footer-bottom{flex-direction:column;text-align:center}
  .topbar .container{flex-wrap:wrap;height:auto;padding:6px 20px;gap:4px}
  .article{padding:20px}
  .header-phone{display:none}
}