:root{
  --white:#ffffff;
  --bg:#f5f5f5;
  --dark:#1a1a1a;
  --dark-2:#0f0f0f;
  --text:#1a1a1a;
  --gray:#666666;
  --gray-2:#999999;
  --red:#d92b2b;
  --red-dark:#b81f1f;
  --red-soft:#fdecec;
  --line:#e0e0e0;
  --line-dark:rgba(255,255,255,.12);
  --radius:8px;
  --container:1200px;
  --shadow:0 8px 30px -10px rgba(26,26,26,.15);
  --shadow-lg:0 20px 50px -18px rgba(26,26,26,.22);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Inter','Segoe UI',Roboto,Arial,sans-serif;
  background:var(--white);
  color:var(--text);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

.container{
  width:100%;max-width:var(--container);
  margin:0 auto;padding:0 24px;
}

/* КНОПКИ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:13px 26px;border-radius:6px;
  font-weight:600;font-size:15px;cursor:pointer;
  border:1px solid transparent;transition:.2s;
  white-space:nowrap;font-family:inherit;
}
.btn--lg{padding:16px 32px;font-size:16px}
.btn--primary{background:var(--red);color:#fff}
.btn--primary:hover{background:var(--red-dark);transform:translateY(-1px)}
.btn--outline{border-color:var(--dark);color:var(--dark);background:transparent}
.btn--outline:hover{background:var(--dark);color:#fff}
.btn--ghost{border-color:rgba(255,255,255,.5);color:#fff;background:transparent}
.btn--ghost:hover{background:rgba(255,255,255,.1)}

/* ШАПКА */
.header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:.25s;
}
.header.scrolled{box-shadow:0 2px 16px -6px rgba(26,26,26,.12)}
.header__inner{
  display:flex;align-items:center;justify-content:space-between;
  height:78px;gap:24px;
}
.logo{
  display:flex;align-items:center;gap:12px;
  color:var(--dark);font-weight:800;
}
.logo__rm{
  font-size:26px;letter-spacing:1px;line-height:1;
  padding-bottom:5px;
  border-bottom:3px solid var(--red);
}
.logo__pt{
  font-size:13px;font-weight:700;letter-spacing:2px;
  color:var(--red);text-transform:uppercase;
}

.nav{display:flex;gap:2px;margin-left:auto;align-items:center}
.nav a{
  display:block;
  padding:10px 16px;
  color:var(--text);font-size:15px;font-weight:500;
  border-radius:6px;transition:.2s;
}
.nav a:hover{color:var(--red);background:var(--red-soft)}
.nav a.active{color:var(--red)}

.burger{display:none;background:none;border:0;cursor:pointer;flex-direction:column;gap:5px;padding:6px}
.burger span{width:24px;height:2px;background:var(--dark);display:block;transition:.25s}

/* HERO */
.hero{
  position:relative;
  min-height:620px;
  display:flex;align-items:center;
  padding:150px 0 90px;
  overflow:hidden;
  background:var(--dark);
}
.hero__bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  opacity:.32;
  transform:scale(1.05);
  animation:heroZoom 22s ease-out forwards;
}
@keyframes heroZoom{to{transform:scale(1)}}
.hero__overlay{
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(15,15,15,.86) 0%,rgba(15,15,15,.68) 50%,rgba(15,15,15,.3) 100%);
}
.hero__inner{position:relative;z-index:2;max-width:740px;color:#fff}
.hero__tag{
  display:inline-block;
  color:#fff;
  background:var(--red);
  padding:6px 14px;border-radius:4px;
  font-weight:700;letter-spacing:1.5px;
  font-size:12px;margin-bottom:24px;
  text-transform:uppercase;
}
.hero h1{
  font-size:clamp(32px,4.6vw,54px);
  line-height:1.1;font-weight:800;letter-spacing:-.8px;
  margin-bottom:22px;
}
.hero h1 span{color:var(--red)}
.hero__sub{
  color:#c5c5c5;margin-bottom:36px;max-width:580px;font-size:17px;
}
.hero__actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:60px}
.hero__stats{
  display:flex;gap:44px;flex-wrap:wrap;
  padding-top:32px;border-top:1px solid rgba(255,255,255,.15);
}
.stat b{
  font-size:36px;font-weight:800;color:#fff;display:block;line-height:1;
}
.stat span{color:#999;font-size:14px;margin-top:6px;display:block}

/* СЕКЦИИ */
.section{padding:90px 0}
.section--bg{background:var(--bg)}
.section--dark{background:var(--dark);color:#fff}
.section--dark .section__lead{color:#a0a0a0}

.section__head{max-width:720px;margin-bottom:56px}
.section__head--center{margin-left:auto;margin-right:auto;text-align:center}
.section__tag{
  display:inline-block;
  color:var(--red);
  font-weight:700;letter-spacing:2px;
  text-transform:uppercase;font-size:12px;margin-bottom:14px;
}
.section__title{
  font-size:clamp(26px,3.4vw,40px);font-weight:800;
  line-height:1.15;letter-spacing:-.6px;margin-bottom:16px;
  color:var(--dark);
}
.section--dark .section__title{color:#fff}
.section__lead{color:var(--gray);font-size:17px}

/* ПРЕИМУЩЕСТВА */
.adv{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.adv__item{
  padding:30px 24px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  transition:.25s;
}
.adv__item:hover{
  border-color:var(--red);
  transform:translateY(-3px);
  box-shadow:var(--shadow);
}
.adv__icon{
  width:48px;height:48px;border-radius:8px;
  background:var(--red-soft);
  color:var(--red);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:18px;
}
.adv__icon svg{width:24px;height:24px}
.adv__item h3{font-size:17px;font-weight:700;margin-bottom:8px;color:var(--dark)}
.adv__item p{color:var(--gray);font-size:14px;line-height:1.55}

/* ЦИФРЫ */
.numbers{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.number{
  text-align:center;
  padding:36px 20px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  transition:.25s;
}
.number:hover{border-color:var(--red);transform:translateY(-3px)}
.number b{
  display:block;font-size:46px;font-weight:800;
  color:var(--dark);line-height:1;margin-bottom:8px;
}
.number span{color:var(--gray);font-size:14px}

/* ГАРАНТИЯ */
.guarantee{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:60px;align-items:center;
}
.guarantee__badge{
  display:inline-flex;align-items:center;gap:12px;
  padding:14px 24px;
  background:var(--red);
  color:#fff;
  border-radius:6px;
  font-weight:700;font-size:16px;
  margin-bottom:24px;
}
.guarantee__badge b{font-size:24px;line-height:1}
.guarantee ul{list-style:none;display:grid;gap:12px;margin-top:24px}
.guarantee li{
  position:relative;padding-left:32px;
  color:var(--text);font-size:16px;
}
.guarantee li::before{
  content:"✓";
  position:absolute;left:0;top:1px;
  width:22px;height:22px;
  border-radius:50%;
  background:var(--red-soft);
  color:var(--red);
  display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:800;
}

/* ПРОЕКТЫ */
.projects{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
/* КАРТОЧКИ ПРОЕКТОВ С ФОТО */
.project--row{
  display:flex;
  flex-direction:column;
  padding:0;
  overflow:hidden;
}

.project--row::before{
  display:none;
}

.project__img{
  width:100%;
  height:576px;
  background-size:cover;
  background-position:center;
  background-repeat:no-repeat;
  background-color:#e8e8e8;
  transition:.5s;
}

.project--row:hover .project__img{
  transform:scale(1.03);
}

.project--row .project__body{
  padding:26px 28px 30px;
}

.project__stats{
  display:flex;
  gap:24px;
  margin-top:18px;
  padding-top:18px;
  border-top:1px solid var(--line);
}

.project__stats span{
  color:var(--gray);
  font-size:14px;
}

.project__stats b{
  color:var(--red);
  font-size:18px;
  font-weight:800;
  margin-right:4px;
}

.project--row:hover{
  transform:translateY(-4px);
  border-color:var(--red);
  box-shadow:var(--shadow);
}
.project{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:32px;
  transition:.25s;
  position:relative;
  overflow:hidden;
}
.project::before{
  content:'';position:absolute;left:0;top:0;bottom:0;width:4px;
  background:var(--red);
  transform:scaleY(0);transform-origin:top;transition:.3s;
}
.project:hover{
  transform:translateY(-3px);
  border-color:var(--red);
  box-shadow:var(--shadow);
}
.project:hover::before{transform:scaleY(1)}

.project__meta{
  display:inline-block;
  font-size:12px;font-weight:700;letter-spacing:1.5px;
  text-transform:uppercase;
  color:var(--red);
  margin-bottom:14px;
}
.project h3{font-size:21px;margin-bottom:10px;color:var(--dark);letter-spacing:-.3px}
.project p{color:var(--gray);font-size:15px;line-height:1.6}

/* CTA */
.cta{
  background:var(--dark);
  border-radius:12px;
  padding:60px 56px;
  color:#fff;
  display:grid;
  grid-template-columns:1.3fr 1fr;
  gap:50px;
  align-items:center;
}
.cta h2{font-size:clamp(24px,3vw,36px);line-height:1.2;margin-bottom:14px;letter-spacing:-.5px}
.cta p{color:#a0a0a0;font-size:16px}
.cta__actions{display:flex;flex-direction:column;gap:14px}
.cta__actions .btn{width:100%}

/* СЕТКА КАРТОЧЕК ОБОРУДОВАНИЯ (для production.html) */
.catalog{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
}
.catalog__card{
  display:flex;flex-direction:column;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:28px 26px;
  transition:.25s;
  position:relative;
  overflow:hidden;
  min-height:220px;
}
.catalog__card::after{
  content:'→';
  position:absolute;
  right:24px;bottom:22px;
  font-size:20px;
  color:var(--gray-2);
  transition:.25s;
}
.catalog__card:hover{
  border-color:var(--red);
  transform:translateY(-4px);
  box-shadow:var(--shadow);
}
.catalog__card:hover::after{
  color:var(--red);
  transform:translateX(4px);
}

.catalog__num{
  font-size:12px;
  font-weight:800;
  letter-spacing:2px;
  color:var(--red);
  margin-bottom:14px;
}
.catalog__card h3{
  font-size:19px;
  font-weight:700;
  color:var(--dark);
  margin-bottom:12px;
  line-height:1.25;
  letter-spacing:-.2px;
}
.catalog__card p{
  color:var(--gray);
  font-size:14px;
  line-height:1.55;
  margin-bottom:14px;
}
.catalog__tags{
  display:flex;
  flex-wrap:wrap;
  gap:6px;
  margin-top:auto;
  padding-right:30px;
}
.catalog__tag{
  font-size:11.5px;
  font-weight:600;
  padding:4px 10px;
  background:var(--bg);
  color:var(--gray);
  border-radius:100px;
  letter-spacing:.2px;
}

/* ФУТЕР */
.footer{
  background:var(--dark);
  color:#a0a0a0;
  padding:60px 0 30px;
  margin-top:0;
}
.footer__top{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid var(--line-dark);
}
.footer__brand .logo{color:#fff;margin-bottom:16px}
.footer__brand .logo__pt{color:var(--red)}
.footer__brand p{font-size:14px;line-height:1.6;max-width:280px}
.footer h4{color:#fff;font-size:13px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;margin-bottom:18px}
.footer ul{list-style:none;display:grid;gap:10px}
.footer ul a{font-size:14.5px;transition:.2s}
.footer ul a:hover{color:var(--red)}
.footer__bottom{
  padding-top:24px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px;
  font-size:13.5px;
}
.footer__bottom a{color:var(--red)}

/* АНИМАЦИИ */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:translateY(0)}

/* АДАПТИВ */
@media (max-width:1100px){
  .adv{grid-template-columns:repeat(2,1fr)}
  .numbers{grid-template-columns:repeat(2,1fr)}
  .catalog{grid-template-columns:repeat(2,1fr)}
  .footer__top{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .nav{
    display:none;
    position:fixed;top:78px;left:0;right:0;
    background:#fff;
    border-bottom:1px solid var(--line);
    padding:16px 20px;gap:0;
    flex-direction:column;align-items:stretch;
    max-height:calc(100vh - 78px);overflow-y:auto;
  }
  .nav.open{display:flex}
  .nav a{padding:14px 12px;border-bottom:1px solid var(--line);border-radius:0}
  .header__cta{display:none}
  .burger{display:flex}
  .guarantee{grid-template-columns:1fr;gap:40px}
  .cta{grid-template-columns:1fr;padding:44px 28px}
  .section{padding:64px 0}
}
@media (max-width:640px){
  .adv{grid-template-columns:1fr}
  .projects{grid-template-columns:1fr}
  .numbers{grid-template-columns:1fr 1fr}
  .catalog{grid-template-columns:1fr}
  .hero{padding:120px 0 70px;min-height:auto}
  .hero__stats{gap:26px}
  .stat b{font-size:28px}
  .footer__top{grid-template-columns:1fr}
  .project{padding:26px}
  .catalog__card{padding:24px 22px}
}
.logo img{
  height: 64px;
  width: auto;
  display: block;
}
.footer .logo img{
  height: 72px;
}