:root{
  --blue:#0a6bb5;--blue-d:#075189;--cyan:#12aee0;--ink:#1c2b36;--muted:#5f7382;
  --bg:#f4f8fb;--line:#e2eaf0;--white:#fff;--radius:14px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Segoe UI",Roboto,Arial,sans-serif;color:var(--ink);background:var(--white);line-height:1.6}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1160px;margin:0 auto;padding:0 20px}
.wrap--narrow{max-width:820px}

/* header */
.hdr{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(6px);border-bottom:1px solid var(--line)}
.hdr__in{display:flex;align-items:center;gap:22px;height:66px}
.logo{font-size:22px;font-weight:600;display:flex;align-items:center;gap:6px}
.logo b{color:var(--blue)}
.logo__ic{font-size:22px}
.nav{margin-left:auto;display:flex;gap:20px}
.nav a{color:var(--muted);font-weight:500}
.nav a:hover{color:var(--blue)}
.hdr__phone{font-weight:700;color:var(--blue);white-space:nowrap}
.burger{display:none;background:none;border:0;font-size:24px;cursor:pointer}

/* buttons */
.btn{display:inline-block;background:var(--blue);color:#fff;padding:13px 26px;border-radius:10px;font-weight:600;border:0;cursor:pointer;transition:.2s;font-size:15px}
.btn:hover{background:var(--blue-d)}
.btn--big{padding:16px 34px;font-size:17px}
.btn--sm{padding:10px 18px;font-size:14px}
.btn--ghost{background:transparent;border:2px solid #fff;color:#fff;padding:11px 24px}
.btn--ghost:hover{background:rgba(255,255,255,.15)}

/* hero */
.hero{background:linear-gradient(120deg,#0a6bb5,#12aee0);color:#fff;overflow:hidden}
.hero__in{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;padding:60px 20px 70px}
.badge{display:inline-block;background:rgba(255,255,255,.18);padding:6px 14px;border-radius:20px;font-size:13px;margin-bottom:18px}
.hero h1{font-size:42px;line-height:1.15;margin-bottom:16px}
.lead{font-size:18px;opacity:.95;margin-bottom:20px;max-width:540px}
.hero__adv{list-style:none;margin-bottom:26px}
.hero__adv li{margin-bottom:6px;font-weight:500}
.hero__btns{display:flex;gap:14px;flex-wrap:wrap}
.hero__img img{border-radius:var(--radius);box-shadow:0 20px 50px rgba(0,0,0,.25);width:100%;aspect-ratio:4/3;object-fit:cover}

/* stats */
.stats{background:var(--ink);color:#fff}
.stats__in{display:grid;grid-template-columns:repeat(4,1fr);text-align:center;padding:26px 20px}
.stats b{display:block;font-size:30px;color:var(--cyan)}
.stats span{font-size:14px;opacity:.8}

/* sections */
.sec{padding:70px 0}
.sec--alt{background:var(--bg)}
.sec__title{font-size:32px;text-align:center;margin-bottom:8px}
.sec__sub{text-align:center;color:var(--muted);max-width:640px;margin:0 auto 40px;font-size:17px}

/* cards */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:.25s}
.card:hover{transform:translateY(-4px);box-shadow:0 16px 34px rgba(10,107,181,.14)}
.card__img img{aspect-ratio:16/10;object-fit:cover;width:100%}
.card__body{padding:22px;display:flex;flex-direction:column;flex:1}
.card__body h3{font-size:21px;margin-bottom:10px}
.card__body p{color:var(--muted);margin-bottom:14px}
.ticks{list-style:none;margin-bottom:18px}
.ticks li{padding-left:24px;position:relative;margin-bottom:6px}
.ticks li:before{content:"✔";position:absolute;left:0;color:var(--blue);font-weight:700}
.card .btn{margin-top:auto}

/* prices */
.price{display:grid;grid-template-columns:1.4fr 1fr;gap:30px;align-items:start}
.price__table{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:0 6px 20px rgba(0,0,0,.05)}
.price__table th,.price__table td{padding:15px 18px;text-align:left;border-bottom:1px solid var(--line)}
.price__table th{background:var(--blue);color:#fff;font-weight:600}
.price__table tr:last-child td{border-bottom:0}
.price__val{color:var(--blue);font-weight:700;white-space:nowrap}
.price__calc{background:#fff;border:2px solid var(--blue);border-radius:var(--radius);padding:26px}
.price__calc h3{margin-bottom:6px}
.calc__ex{color:var(--muted);margin-bottom:14px}
.calc__list{list-style:none;margin-bottom:20px}
.calc__list li{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px dashed var(--line)}
.calc__total{border-bottom:0!important;font-size:18px;color:var(--blue);margin-top:6px}

/* steps */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px 18px;position:relative}
.step__n{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--cyan));color:#fff;font-weight:700;font-size:20px;display:grid;place-items:center;margin-bottom:14px}
.step h3{font-size:17px;margin-bottom:8px}
.step p{color:var(--muted);font-size:14px}

/* gallery */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.gallery__item img{aspect-ratio:4/3;object-fit:cover;width:100%;border-radius:var(--radius);transition:.25s}
.gallery__item:hover img{transform:scale(1.03);box-shadow:0 12px 26px rgba(0,0,0,.18)}

/* reviews */
.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.review{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.review__head{display:flex;align-items:center;gap:14px;margin-bottom:12px}
.review__head img{width:56px;height:56px;border-radius:50%;object-fit:cover}
.review__head b{display:block}
.review__head span{color:var(--muted);font-size:14px}
.stars{color:#f5a623;margin-bottom:10px;letter-spacing:2px}
.review p{color:var(--muted)}

/* faq */
.faq__item{background:#fff;border:1px solid var(--line);border-radius:10px;margin-bottom:12px;padding:0 20px}
.faq__item summary{cursor:pointer;font-weight:600;padding:18px 0;list-style:none;position:relative;padding-right:30px}
.faq__item summary::-webkit-details-marker{display:none}
.faq__item summary:after{content:"+";position:absolute;right:0;top:16px;font-size:24px;color:var(--blue)}
.faq__item[open] summary:after{content:"–"}
.faq__item p{padding:0 0 18px;color:var(--muted)}

/* lead form */
.lead{background:linear-gradient(120deg,#075189,#0a6bb5);color:#fff;padding:64px 0}
.lead__in{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.lead__text h2{font-size:30px;margin-bottom:14px}
.lead__text p{opacity:.95;margin-bottom:12px}
.lead__phone{font-size:22px;font-weight:700}
.lead__phone a{color:#fff}
.form{background:#fff;border-radius:var(--radius);padding:28px;display:flex;flex-direction:column;gap:12px}
.form input,.form select,.form textarea{padding:13px 15px;border:1px solid var(--line);border-radius:10px;font-size:15px;font-family:inherit;color:var(--ink)}
.form textarea{min-height:80px;resize:vertical}
.form input:focus,.form select:focus,.form textarea:focus{outline:none;border-color:var(--blue)}
.form__note{color:var(--muted);font-size:12px;text-align:center}
.ok{background:#e6f7ec;color:#1c7a3e;padding:18px;border-radius:10px;text-align:center;font-weight:600}
.errmsg{background:#fdecec;color:#c0392b;padding:12px;border-radius:10px;text-align:center}

/* footer */
.ftr{background:var(--ink);color:#c8d4dc;padding:48px 0 0}
.ftr__in{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px}
.ftr b{color:#fff;display:block;margin-bottom:10px}
.ftr a:hover{color:#fff}
.logo--ftr{color:#fff;margin-bottom:12px}
.ftr__copy{border-top:1px solid rgba(255,255,255,.12);margin-top:36px;padding:20px;text-align:center;font-size:14px}

/* fab */
.fab{position:fixed;right:20px;bottom:20px;background:var(--cyan);color:#fff;padding:14px 22px;border-radius:30px;font-weight:700;box-shadow:0 8px 24px rgba(18,174,224,.5);z-index:40}

/* responsive */
@media(max-width:900px){
  .hero__in,.price,.lead__in{grid-template-columns:1fr}
  .cards,.reviews{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  .stats__in{grid-template-columns:1fr 1fr;gap:20px}
  .hero__img{order:-1}
}
@media(max-width:640px){
  .nav{position:absolute;top:66px;left:0;right:0;background:#fff;flex-direction:column;padding:14px 20px;border-bottom:1px solid var(--line);display:none}
  .nav.open{display:flex}
  .burger{display:block;margin-left:auto}
  .hdr__phone{display:none}
  .cards,.reviews,.gallery,.steps{grid-template-columns:1fr}
  .hero h1{font-size:32px}
  .sec__title{font-size:26px}
}