:root{
  --ink:#17252b; --mut:#5b6b72; --line:#e4eaec;
  --teal:#0e3d46; --teal2:#14606d; --amber:#e8a23d; --amber2:#f3c178;
  --bg:#f7f9fa; --card:#ffffff; --r:14px;
  --shadow:0 6px 24px rgba(14,61,70,.08);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:1160px;margin:0 auto;padding:0 22px}
h1,h2,h3{line-height:1.22;font-weight:700}
h2{font-size:30px;margin-bottom:8px}
.sub{color:var(--mut);max-width:640px}
.section{padding:72px 0}
.section-head{margin-bottom:38px}
.btn{display:inline-block;background:var(--amber);color:#2a1d05;font-weight:600;padding:13px 26px;border-radius:10px;border:0;cursor:pointer;font-size:15px;transition:.2s}
.btn:hover{background:var(--amber2)}
.btn.ghost{background:transparent;border:1.5px solid var(--teal);color:var(--teal)}
.btn.ghost:hover{background:var(--teal);color:#fff}
/* header */
header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid transparent;transition:.2s}
header.scrolled{border-color:var(--line);box-shadow:0 2px 14px rgba(14,61,70,.06)}
.nav{display:flex;align-items:center;gap:28px;height:66px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;color:var(--teal)}
.logo-mark{width:34px;height:34px;border-radius:9px;background:var(--teal);display:grid;place-items:center;color:#fff}
.nav-links{display:flex;gap:22px;margin-left:18px;font-size:15px}
.nav-links a{color:var(--mut);transition:.15s}
.nav-links a:hover,.nav-links a.active{color:var(--teal)}
.nav-phone{margin-left:auto;font-weight:700;color:var(--teal);font-size:15px;white-space:nowrap}
.burger{display:none;margin-left:auto;background:none;border:0;cursor:pointer}
.burger span{display:block;width:24px;height:2px;background:var(--ink);margin:5px 0}
.cart-chip{margin-left:14px;background:var(--teal);color:#fff;border-radius:999px;padding:5px 13px;font-size:13px;font-weight:600;cursor:pointer;white-space:nowrap}
/* hero */
.hero{background:linear-gradient(135deg,#0e3d46 0%,#14606d 60%,#1b7a89 100%);color:#fff;padding:84px 0 92px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;background:rgba(232,162,61,.14)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center;position:relative;z-index:1}
.kicker{display:inline-block;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.25);padding:6px 14px;border-radius:999px;font-size:13px;margin-bottom:18px}
.hero h1{font-size:42px;margin-bottom:16px}
.hero p.lead{font-size:17px;color:#d9e7ea;max-width:520px;margin-bottom:26px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{display:flex;gap:34px;margin-top:38px;flex-wrap:wrap}
.hero-stats b{font-size:26px;display:block}
.hero-stats span{font-size:13px;color:#bcd6db}
.hero-card{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:18px;padding:24px}
.hero-card h3{font-size:16px;margin-bottom:14px}
.hc-row{display:flex;justify-content:space-between;padding:9px 0;border-bottom:1px dashed rgba(255,255,255,.2);font-size:14px}
.hc-row:last-child{border:0}
/* promo timer */
.promo{background:var(--amber);color:#2a1d05;padding:14px 0;font-weight:600;font-size:15px}
.promo .container{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.timer{display:flex;gap:8px;font-variant-numeric:tabular-nums}
.timer b{background:#2a1d05;color:var(--amber);border-radius:8px;padding:4px 10px;font-size:15px}
/* cards grid */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:24px;transition:.2s}
.card:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.card .ic{width:46px;height:46px;border-radius:12px;background:#eef4f5;display:grid;place-items:center;margin-bottom:14px;color:var(--teal)}
.card h3{font-size:17px;margin-bottom:8px}
.card p{font-size:14px;color:var(--mut)}
.price-note{margin-top:12px;font-weight:700;color:var(--teal)}
/* steps */
.steps{counter-reset:s}
.step{position:relative;padding-left:64px}
.step::before{counter-increment:s;content:counter(s);position:absolute;left:0;top:0;width:44px;height:44px;border-radius:50%;background:var(--teal);color:#fff;display:grid;place-items:center;font-weight:700;font-size:17px}
.step h3{font-size:17px;margin-bottom:6px}
.step p{font-size:14px;color:var(--mut)}
/* cases */
.case{background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.case-body{padding:20px 22px}
.case-body h3{font-size:16px;margin-bottom:6px}
.case-body p{font-size:14px;color:var(--mut)}
.case-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.case-tags span{font-size:12px;background:#eef4f5;color:var(--teal);border-radius:999px;padding:4px 10px}
.case-num{font-size:13px;color:var(--amber);font-weight:700;margin-bottom:4px}
/* faq */
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:12px;margin-bottom:10px;overflow:hidden}
.faq-q{width:100%;text-align:left;background:none;border:0;padding:18px 22px;font-size:15.5px;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;gap:16px;align-items:center;color:var(--ink)}
.faq-q::after{content:"+";font-size:22px;color:var(--amber);transition:.2s}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s;color:var(--mut);font-size:14.5px}
.faq-a div{padding:0 22px 18px}
/* form */
.form-wrap{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:34px;max-width:640px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;border:1.5px solid var(--line);border-radius:10px;padding:12px 14px;font-size:15px;font-family:inherit;background:#fbfdfd}
.field input:focus,.field select:focus,.field textarea:focus{outline:0;border-color:var(--teal2)}
.form-ok{display:none;background:#e9f6ee;border:1px solid #bfe6cd;color:#1c6b3a;border-radius:12px;padding:16px 18px;font-size:15px}
.err{color:#c0392b;font-size:13px;margin-top:4px;display:none}
/* footer */
footer{background:var(--teal);color:#cfe0e4;padding:48px 0 26px;margin-top:30px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px;margin-bottom:30px}
footer h4{color:#fff;font-size:15px;margin-bottom:12px}
footer a{display:block;font-size:14px;margin-bottom:7px;color:#cfe0e4}
footer a:hover{color:#fff}
.foot-bottom{border-top:1px solid rgba(255,255,255,.15);padding-top:18px;font-size:13px;color:#9fbcc3;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
/* catalog */
.toolbar{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin-bottom:26px}
.chips{display:flex;gap:8px;flex-wrap:wrap}
.chip{border:1.5px solid var(--line);background:#fff;border-radius:999px;padding:8px 16px;font-size:14px;cursor:pointer;transition:.15s}
.chip.on{background:var(--teal);border-color:var(--teal);color:#fff}
.toolbar input,.toolbar select{border:1.5px solid var(--line);border-radius:10px;padding:9px 13px;font-size:14px;background:#fff}
.toolbar input{width:220px}
.prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.prod{background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;transition:.2s}
.prod:hover{box-shadow:var(--shadow)}
.prod-art{height:150px;display:grid;place-items:center;background:linear-gradient(135deg,#eef4f5,#e2edef)}
.prod-art svg{width:72px;height:72px}
.prod-body{padding:16px;display:flex;flex-direction:column;gap:8px;flex:1}
.prod-cat{font-size:11.5px;color:var(--mut);text-transform:uppercase;letter-spacing:.4px}
.prod-name{font-size:15px;font-weight:600;line-height:1.35}
.prod-price{margin-top:auto;font-weight:800;font-size:17px;color:var(--teal)}
.prod .btn{padding:9px 12px;font-size:13.5px;text-align:center}
.empty{padding:40px;text-align:center;color:var(--mut);grid-column:1/-1}
/* toast */
.toast{position:fixed;bottom:24px;right:24px;background:var(--ink);color:#fff;padding:13px 20px;border-radius:10px;font-size:14px;opacity:0;transform:translateY(10px);transition:.25s;z-index:99}
.toast.show{opacity:1;transform:translateY(0)}
/* contacts */
.contacts-grid{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:start}
.c-item{display:flex;gap:14px;margin-bottom:18px}
.c-item .ic{width:42px;height:42px;flex:0 0 42px;border-radius:11px;background:#eef4f5;display:grid;place-items:center;color:var(--teal)}
.c-item b{display:block;font-size:14.5px}
.c-item span{font-size:14px;color:var(--mut)}
.map{border:1px solid var(--line);border-radius:16px;overflow:hidden;background:#e8eff1}
/* reveal anim */
.rv{opacity:0;transform:translateY(16px);transition:.5s}
.rv.in{opacity:1;transform:none}
@media(max-width:960px){
  .hero-grid,.contacts-grid{grid-template-columns:1fr}
  .grid4,.prod-grid{grid-template-columns:repeat(2,1fr)}
  .grid3{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .nav-links{display:none;position:absolute;top:66px;left:0;right:0;background:#fff;flex-direction:column;padding:18px 22px;border-bottom:1px solid var(--line);gap:14px}
  .nav-links.open{display:flex}
  .burger{display:block}
  .nav-phone{display:none}
  .hero h1{font-size:32px}
}
@media(max-width:560px){
  .grid4,.prod-grid{grid-template-columns:1fr}
  .section{padding:52px 0}
  h2{font-size:25px}
}