:root{
  --bg:#f4f6f9;
  --surface:#ffffff;
  --surface-2:#eef2f8;
  --text:#111826;
  --muted:#5a6577;
  --accent:#1d4ed8;
  --accent-dark:#153a9e;
  --accent-text:#ffffff;
  --line:#e2e7ef;
  --radius:20px;
  --shadow:0 10px 30px rgba(15,25,45,.08);
  --container:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font:17px/1.6 Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  color:var(--text);
  background:var(--bg);
}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent)}
p{margin:0 0 16px}
.container{max-width:var(--container);margin:0 auto;padding:0 20px}
.muted{color:var(--muted)}
.section{padding:80px 0}
.section--alt{background:var(--surface)}
.section__head{max-width:68ch;margin:0 0 36px}
.eyebrow{
  display:inline-block;margin:0 0 12px;padding:6px 12px;border-radius:999px;
  background:var(--surface-2);color:var(--accent);font-size:13px;font-weight:600;
  letter-spacing:.02em;text-transform:uppercase;
}
h1{font-size:clamp(30px,5vw,50px);line-height:1.08;margin:0 0 18px;letter-spacing:-.02em}
h2{font-size:clamp(24px,3.4vw,34px);line-height:1.2;margin:0 0 14px;letter-spacing:-.015em}
h3{font-size:19px;line-height:1.3;margin:0 0 8px}
.lead{font-size:18px;color:var(--muted);max-width:62ch}

/* header */
.header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header__inner{display:flex;align-items:center;gap:20px;min-height:72px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--text);margin-right:auto}
.brand__mark{
  width:44px;height:44px;border-radius:12px;flex:0 0 44px;
  background:linear-gradient(135deg,var(--accent),#3b6ef0);color:#fff;
  display:grid;place-items:center;font-weight:700;font-size:16px;letter-spacing:.02em;
}
.brand__text{display:flex;flex-direction:column;line-height:1.15}
.brand__text strong{font-size:17px}
.brand__text small{color:var(--muted);font-size:12.5px}
.nav{display:flex;gap:20px;align-items:center}
.nav a{color:var(--text);text-decoration:none;font-weight:500;font-size:16px;padding:6px 0;border-bottom:2px solid transparent}
.nav a:hover{border-color:var(--line)}
.nav a.is-active{color:var(--accent);border-color:var(--accent)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:var(--surface);cursor:pointer;padding:0;place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);margin:3px auto;border-radius:2px}
.header__cta{white-space:nowrap}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 22px;border-radius:999px;font-weight:600;font-size:16px;
  text-decoration:none;border:1px solid transparent;transition:filter .15s ease,background .15s ease;
}
.btn--primary{background:var(--accent);color:var(--accent-text)}
.btn--primary:hover{background:var(--accent-dark)}
.btn--ghost{background:var(--surface);color:var(--text);border-color:var(--line)}
.btn--ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn--light{background:var(--surface);color:var(--accent)}
.btn--outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.45)}
.btn--outline-light:hover{border-color:#fff}

/* hero: текст слева, картинка — на половину первого экрана справа */
.hero{padding:56px 0 72px;background:
  radial-gradient(1000px 460px at 88% -10%,rgba(29,78,216,.10),transparent 60%)}
.hero__inner{display:grid;gap:48px;grid-template-columns:1fr 1fr;align-items:center}
.hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0 18px}
.hero__facts{display:flex;flex-wrap:wrap;gap:10px 24px;padding:0;margin:0;list-style:none;color:var(--muted);font-size:15.5px}
.hero__facts li{display:flex;align-items:center;gap:8px}
.hero__media{position:relative;height:100%}
.hero__media img{
  width:100%;height:100%;min-height:clamp(380px,60vh,660px);
  object-fit:cover;border-radius:var(--radius);box-shadow:var(--shadow);
}
.hero__badge{
  position:absolute;left:-14px;bottom:-18px;background:var(--surface);border:1px solid var(--line);
  border-radius:16px;box-shadow:var(--shadow);padding:14px 18px;font-size:14.5px;color:var(--muted);
}
.hero__badge strong{display:block;color:var(--text);font-size:18px}
@media (min-width:901px){
  .hero{display:flex;align-items:center;min-height:calc(100vh - 72px)}
  .hero>.container{width:100%}
}

/* cards */
.grid{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.card p{margin:0;color:var(--muted);font-size:16px}
.card .price{margin-top:16px;padding-bottom:0;border-bottom:0}
.card__icon{
  width:44px;height:44px;border-radius:12px;background:var(--surface-2);color:var(--accent);
  display:grid;place-items:center;margin-bottom:16px;
}
.card__icon svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}

/* price list */
.price-list{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:8px 24px;margin:0}
.price{display:flex;justify-content:space-between;align-items:baseline;gap:20px;padding:18px 0;border-bottom:1px solid var(--line)}
.price:last-child{border-bottom:0}
.price__name{font-weight:600}
.price__note{display:block;color:var(--muted);font-weight:400;font-size:15px;margin-top:2px}
.price__value{font-weight:700;white-space:nowrap;font-size:18px}

/* steps */
.steps{counter-reset:step;display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));padding:0;margin:0;list-style:none}
.steps li{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.steps li::before{
  counter-increment:step;content:counter(step);
  display:grid;place-items:center;width:34px;height:34px;border-radius:50%;
  background:var(--accent);color:#fff;font-weight:700;font-size:15px;margin-bottom:14px;
}
.steps p{margin:0;color:var(--muted);font-size:16px}

/* feature block with image */
.split{display:grid;gap:40px;grid-template-columns:1.05fr .95fr;align-items:center}
.split img{border-radius:var(--radius);box-shadow:var(--shadow)}
.checklist{list-style:none;padding:0;margin:0}
.checklist li{position:relative;padding:0 0 12px 30px;color:var(--muted)}
.checklist li::before{content:"";position:absolute;left:0;top:7px;width:16px;height:9px;border-left:2.5px solid var(--accent);border-bottom:2.5px solid var(--accent);transform:rotate(-45deg)}
.checklist strong{color:var(--text)}

/* faq */
.faq{display:grid;gap:12px;max-width:860px}
.faq details{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:4px 22px}
.faq summary{cursor:pointer;font-weight:600;padding:18px 0;list-style:none;display:flex;justify-content:space-between;gap:16px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--accent);font-size:22px;font-weight:600;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq p{margin:0 0 18px;color:var(--muted)}
.section--alt .faq details{background:var(--surface)}

/* contacts */
.contact-grid{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.contact-item{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:22px}
.contact-item h3{font-size:15px;color:var(--muted);font-weight:600;text-transform:uppercase;letter-spacing:.04em;margin-bottom:10px}
.contact-item p{margin:0;font-size:17px}
.contact-item a{text-decoration:none;font-weight:600}
.contact-item a:hover{text-decoration:underline}

/* cta band */
.band{background:linear-gradient(135deg,#153a9e,#1d4ed8);color:#fff;border-radius:24px;padding:44px;display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between}
.band h2{color:#fff;margin-bottom:8px}
.band p{color:rgba(255,255,255,.85);margin:0;max-width:52ch}
.band__actions{display:flex;flex-wrap:wrap;gap:12px}

/* footer */
.footer{border-top:1px solid var(--line);padding:44px 0 36px;font-size:14.5px;color:var(--muted)}
.footer__inner{display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between}
.footer a{color:var(--muted);text-decoration:none}
.footer a:hover{color:var(--accent)}
.footer__nav{display:flex;flex-wrap:wrap;gap:18px}
.footer .disclaimer{margin-top:24px;max-width:70ch;font-size:13.5px}

@media (max-width:900px){
  .hero__inner,.split{grid-template-columns:1fr}
  .hero__media img{min-height:0;height:auto;aspect-ratio:3/2}
  .header__inner{flex-wrap:wrap;padding:10px 0}
  .nav-toggle{display:grid;order:2}
  .header__cta{order:3;width:100%;justify-content:center}
  .nav{order:4;display:none;flex-direction:column;align-items:flex-start;gap:4px;width:100%;padding:8px 0 4px}
  .nav.is-open{display:flex}
  .nav a{width:100%;padding:10px 0;border-bottom:1px solid var(--line)}
  .section{padding:56px 0}
  .hero{padding:36px 0 56px}
  .price-list{padding:4px 18px}
  .band{padding:28px}
  .btn{flex:1 1 auto}
}