*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font:17px/1.6 -apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:#1d2330;background:#fff}
a{color:var(--accent)}
h1,h2,h3{line-height:1.2;color:var(--ink)}
h1{font-size:clamp(28px,4.4vw,44px);margin:0 0 16px}
h2{font-size:clamp(23px,3vw,31px);margin:0 0 20px}
h3{font-size:19px;margin:0 0 8px}
.wrap{max-width:1140px;margin:0 auto;padding:0 16px}
.btn{display:inline-block;background:var(--accent2);color:#fff;text-decoration:none;font-weight:700;padding:15px 28px;border-radius:10px;border:0;cursor:pointer;font-size:17px}
.btn:hover{filter:brightness(1.07)}
/* шапка */
.top{position:sticky;top:0;z-index:20;background:#fff;border-bottom:1px solid #e8ebf0}
.top-in{display:flex;align-items:center;gap:20px;min-height:66px}
.logo{display:flex;gap:10px;align-items:center;text-decoration:none;color:var(--ink)}
.logo .mark{width:40px;height:40px;border-radius:10px;background:var(--accent);color:#fff;display:grid;place-items:center;font-weight:800}
.logo b{display:block;font-size:17px}.logo small{display:block;color:#6b7383;font-size:12px;line-height:1.2}
.menu{display:flex;gap:18px;margin-left:auto}
.menu a{color:#334;text-decoration:none;font-size:15px}.menu a.on,.menu a:hover{color:var(--accent)}
.top-phone{font-weight:700;text-decoration:none;white-space:nowrap}
.crumbs{font-size:14px;color:#6b7383;padding-top:14px;padding-bottom:4px}
.crumbs a{color:#6b7383}
/* первый экран */
.hero{background:linear-gradient(135deg,color-mix(in srgb,var(--accent) 10%,#fff),#fff 70%);padding:48px 0 56px}
.hero-in{display:grid;grid-template-columns:1.5fr 1fr;gap:40px;align-items:center}
.hero .sub{font-size:19px;color:#3b4252;margin:0 0 18px}
.ticks{list-style:none;padding:0;margin:0 0 26px}
.ticks li{padding-left:30px;position:relative;margin:8px 0}
.ticks li:before{content:"✓";position:absolute;left:0;top:0;color:var(--accent);font-weight:800}
.facts{display:grid;gap:12px;margin:0}
.facts div{background:#fff;border-radius:14px;padding:16px 20px;box-shadow:0 4px 18px rgba(20,30,60,.07)}
.facts dt{font-size:14px;color:#6b7383}.facts dd{margin:0;font-size:22px;font-weight:800;color:var(--ink)}
/* блоки */
.blk{padding:44px 0}.blk.alt{background:#f5f7fa}
.intro{color:#3b4252;max-width:780px}
.prose>*{max-width:820px}.prose p,.prose li{color:#2a3040}
.prose table{border-collapse:collapse;width:100%;margin:14px 0}
.prose td,.prose th{border:1px solid #e1e5ec;padding:9px 12px;text-align:left}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px}
.card{display:block;border:1px solid #e3e7ee;border-radius:14px;padding:20px;text-decoration:none;color:inherit;background:#fff;transition:.15s}
a.card:hover{border-color:var(--accent);box-shadow:0 6px 22px rgba(20,30,60,.08)}
.card p{margin:0;color:#4a5263;font-size:15.5px}.card .price{color:var(--accent);font-weight:800;margin-bottom:6px}
.steps{counter-reset:s;list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px}
.steps li{counter-increment:s;background:#fff;border-radius:14px;padding:20px;position:relative}
.steps li:before{content:counter(s);display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--accent);color:#fff;font-weight:800;margin-bottom:10px}
.steps b{display:block;margin-bottom:4px}.steps span{color:#4a5263;font-size:15.5px}
.prices{width:100%;border-collapse:collapse;max-width:820px}
.prices td{padding:12px 14px;border-bottom:1px solid #e8ebf0}.prices td:last-child{text-align:right;font-weight:700;white-space:nowrap}
.note{font-size:14px;color:#6b7383}
details{border:1px solid #e3e7ee;border-radius:12px;padding:14px 18px;margin:10px 0;max-width:860px}
summary{cursor:pointer;font-weight:700}details div{margin-top:10px;color:#3b4252}
.linklist{columns:2;padding-left:18px}.linklist li{margin:6px 0;break-inside:avoid}
.more{background:#f5f7fa}
/* форма */
.lead{background:var(--ink);color:#fff;padding:52px 0}
.lead h2{color:#fff}.lead-in{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.lead-txt p{color:#d6dbe5}.lead-phone a{color:#fff;font-weight:800;font-size:22px}
.lead-form{background:#fff;color:#1d2330;border-radius:16px;padding:24px;display:grid;gap:12px}
.lead-form label{display:grid;gap:4px;font-size:14px;color:#4a5263}
.lead-form input,.lead-form select{font:inherit;padding:12px 14px;border:1px solid #cfd5df;border-radius:10px;width:100%}
.lead-form input:focus,.lead-form select:focus{outline:2px solid var(--accent);border-color:transparent}
.lead-form .ok{display:flex;gap:8px;align-items:flex-start;font-size:13px}.lead-form .ok input{width:auto;margin-top:3px}
.lead-form button{background:var(--accent2);color:#fff;border:0;border-radius:10px;padding:15px;font:inherit;font-weight:700;cursor:pointer}
.lead-form button:disabled{opacity:.6}
.lead-msg{margin:0;font-size:15px}.lead-msg.good{color:#16803c;font-weight:700}.lead-msg.bad{color:#c62828}
.hp{position:absolute!important;left:-9999px}
/* калькулятор */
.calc{display:grid;grid-template-columns:1fr 1fr;gap:28px;background:#f5f7fa;border-radius:16px;padding:24px}
.calc label{display:grid;gap:4px;font-size:14px;color:#4a5263;margin-bottom:12px}
.calc input,.calc select{font:inherit;padding:10px 12px;border:1px solid #cfd5df;border-radius:10px}
.calc .res{background:#fff;border-radius:14px;padding:20px}.calc .res b{font-size:26px;color:var(--accent)}
/* подвал */
.foot{background:#12161f;color:#aab2c0;padding:36px 0 90px;font-size:14px}
.foot-in{display:grid;grid-template-columns:1.3fr 1fr 1.2fr;gap:30px}
.foot b{color:#fff}.foot a{color:#cfd6e2;display:block;margin:4px 0}.foot p a{display:inline}
.sticky-cta{display:none}
@media (max-width:860px){
  .menu{display:none}.hero-in,.lead-in,.foot-in,.calc{grid-template-columns:1fr}
  .hero{padding:30px 0 36px}.linklist{columns:1}
  .top-phone{margin-left:auto;font-size:15px}
  .sticky-cta{display:block;position:fixed;left:0;right:0;bottom:0;padding:10px 16px;background:#fff;box-shadow:0 -4px 16px rgba(0,0,0,.08);z-index:30}
  .sticky-cta .btn{display:block;text-align:center}
}