:root{
  --bg:#0f1419; --bg2:#151c24; --card:#1b232d; --line:#2a3542;
  --txt:#e8edf2; --muted:#9aa7b4; --accent:#e63946; --accent2:#f4a261;
  --gold:#d4a24e; --radius:16px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Montserrat',system-ui,sans-serif;background:var(--bg);color:var(--txt);line-height:1.6;overflow-x:hidden}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
h1,h2,h3{font-family:'Oswald',sans-serif;font-weight:700;line-height:1.1;letter-spacing:.5px}

/* Topbar */
.topbar{background:#0a0e12;font-size:13px;border-bottom:1px solid var(--line)}
.topbar__inner{display:flex;justify-content:space-between;align-items:center;padding:8px 24px;gap:16px;flex-wrap:wrap}
.topbar__contacts{display:flex;gap:20px;flex-wrap:wrap;color:var(--muted)}
.topbar__contacts a:hover{color:var(--accent2)}
.topbar__partner{color:var(--gold);font-weight:600;border:1px solid var(--gold);padding:4px 14px;border-radius:20px;transition:.2s}
.topbar__partner:hover{background:var(--gold);color:#0a0e12}

/* Nav */
.nav{position:sticky;top:0;z-index:50;background:rgba(15,20,25,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav__inner{display:flex;align-items:center;gap:24px;padding:14px 24px}
.logo{font-family:'Oswald',sans-serif;font-weight:700;font-size:26px;letter-spacing:1px}
.logo span{color:var(--accent)}
.nav__menu{list-style:none;display:flex;gap:26px;margin-left:auto;font-weight:500}
.nav__menu a{position:relative;padding:4px 0;color:var(--muted);transition:.2s}
.nav__menu a:hover{color:var(--txt)}
.nav__menu a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--accent);transition:.25s}
.nav__menu a:hover::after{width:100%}
.nav__phone{font-family:'Oswald',sans-serif;font-size:18px;color:var(--accent2);font-weight:600}
.nav__burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;margin-left:auto}
.nav__burger span{width:26px;height:3px;background:var(--txt);border-radius:2px;transition:.3s}

/* Buttons */
.btn{display:inline-block;padding:14px 30px;border-radius:12px;font-weight:600;cursor:pointer;border:0;font-size:15px;transition:.25s;font-family:'Montserrat'}
.btn--primary{background:linear-gradient(135deg,var(--accent),#c1121f);color:#fff;box-shadow:0 8px 24px rgba(230,57,70,.35)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(230,57,70,.5)}
.btn--ghost{border:1.5px solid var(--line);color:var(--txt)}
.btn--ghost:hover{border-color:var(--accent2);color:var(--accent2)}
.btn--block{width:100%}

/* Hero */
.hero{position:relative;overflow:hidden;background:radial-gradient(1000px 500px at 80% -10%,rgba(230,57,70,.18),transparent),var(--bg)}
.hero__inner{display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center;padding:70px 24px 60px}
.hero__eyebrow{color:var(--accent2);font-weight:600;text-transform:uppercase;letter-spacing:2px;font-size:13px;margin-bottom:16px}
.hero h1{font-size:clamp(38px,6vw,66px);margin-bottom:20px}
.hero h1 span{color:var(--accent);display:block}
.hero__lead{color:var(--muted);font-size:18px;max-width:520px;margin-bottom:30px}
.hero__actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:40px}
.hero__stats{display:flex;gap:40px;flex-wrap:wrap}
.hero__stats b{font-family:'Oswald';font-size:32px;color:var(--gold);display:block}
.hero__stats span{color:var(--muted);font-size:14px}
.hero__image{position:relative;display:flex;justify-content:center}
.hero__image img{max-height:560px;width:auto;filter:drop-shadow(0 30px 60px rgba(0,0,0,.6))}
.hero__glow{position:absolute;right:-100px;top:20%;width:400px;height:400px;background:var(--accent);filter:blur(180px);opacity:.15;z-index:0}

/* Advantages */
.advantages{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.adv__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:50px 24px}
.adv__card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:.25s}
.adv__card:hover{transform:translateY(-5px);border-color:var(--accent)}
.adv__icon{font-size:38px;margin-bottom:14px}
.adv__card h3{font-size:21px;margin-bottom:8px}
.adv__card p{color:var(--muted);font-size:14px}

/* Sections */
.section{padding:80px 0}
.section--alt{background:var(--bg2)}
.section__head{text-align:center;max-width:700px;margin:0 auto 48px}
.section__tag{display:inline-block;color:var(--accent);text-transform:uppercase;letter-spacing:3px;font-size:13px;font-weight:700;margin-bottom:12px}
.section__head h2{font-size:clamp(30px,4vw,44px);margin-bottom:14px}
.section__sub{color:var(--muted);font-size:17px}

/* Catalog */
.catalog__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.cat__card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.25s;display:flex;flex-direction:column}
.cat__card:hover{transform:translateY(-6px);box-shadow:0 20px 40px rgba(0,0,0,.4)}
.cat__img{height:220px;overflow:hidden;background:#0a0e12}
.cat__img img{width:100%;height:100%;object-fit:cover;transition:.4s}
.cat__card:hover .cat__img img{transform:scale(1.06)}
.cat__body{padding:22px;display:flex;flex-direction:column;flex:1}
.cat__body h3{font-size:20px;margin-bottom:10px}
.cat__body p{color:var(--muted);font-size:14px;flex:1}
.cat__link{color:var(--accent2);font-weight:600;margin-top:16px}

/* About */
.about__grid{display:grid;grid-template-columns:1fr 1.1fr;gap:50px;align-items:center}
.about__media{position:relative}
.about__media img{border-radius:var(--radius);border:1px solid var(--line)}
.about__media--2{position:absolute;right:-20px;bottom:-30px;width:45%;box-shadow:0 20px 50px rgba(0,0,0,.6)}
.about__text h2{font-size:clamp(28px,3.5vw,40px);margin:8px 0 18px}
.about__text p{color:var(--muted);margin-bottom:14px}
.about__list{list-style:none;margin-top:20px;display:grid;gap:10px}
.about__list li{padding-left:30px;position:relative;color:var(--txt)}
.about__list li::before{content:"✓";position:absolute;left:0;color:var(--accent);font-weight:700}

/* Construction */
.construction__inner{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:40px}
.construction__inner img{margin:0 auto}
.construction__list p{color:var(--muted);margin-bottom:16px}
.construction__note{font-size:14px;border-left:3px solid var(--accent);padding-left:16px}

/* Services */
.services__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.service__card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:36px;text-align:center;transition:.25s}
.service__card:hover{border-color:var(--accent2);transform:translateY(-5px)}
.service__icon{font-size:48px;margin-bottom:16px}
.service__card h3{font-size:24px;margin-bottom:10px}
.service__card p{color:var(--muted)}

/* Portfolio */
.portfolio__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.pf__card{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line)}
.pf__card img{width:100%;height:280px;object-fit:cover;transition:.4s}
.pf__card:hover img{transform:scale(1.08)}
.pf__card figcaption{position:absolute;left:0;right:0;bottom:0;padding:20px;background:linear-gradient(transparent,rgba(10,14,18,.95))}
.pf__card figcaption b{display:block;font-size:17px}
.pf__card figcaption span{color:var(--muted);font-size:13px}

/* Reviews */
.reviews__grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.review__card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px}
.review__stars{color:var(--gold);letter-spacing:3px;margin-bottom:14px}
.review__text{font-style:italic;margin-bottom:20px;color:var(--txt)}
.review__author{display:flex;align-items:center;gap:14px}
.review__avatar{width:46px;height:46px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent2));display:flex;align-items:center;justify-content:center;font-weight:700;font-family:'Oswald';font-size:20px}
.review__author small{color:var(--muted);display:block}

/* Contacts */
.contacts__grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.contacts__info{display:grid;gap:20px;align-content:start}
.ci__item{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px 22px}
.ci__item b{display:block;color:var(--accent2);margin-bottom:6px;font-family:'Oswald';font-size:16px;letter-spacing:.5px}
.ci__item a:hover{color:var(--accent2)}
.contacts__map{border-radius:12px;overflow:hidden;border:1px solid var(--line)}
.contacts__map iframe{display:block;filter:grayscale(.3) invert(.9) hue-rotate(180deg)}
.contacts__form{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:34px}
.form{display:grid;gap:16px}
.form label{font-size:14px;font-weight:500;display:grid;gap:6px}
.form label small{color:var(--muted);font-weight:400}
.form input,.form textarea{width:100%;background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:13px 15px;color:var(--txt);font-family:inherit;font-size:15px;transition:.2s}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(230,57,70,.15)}
.form__note{font-size:12px;color:var(--muted);text-align:center}
.alert{padding:14px 18px;border-radius:10px;margin-bottom:18px;font-size:14px}
.alert--ok{background:rgba(46,160,90,.15);border:1px solid #2ea05a;color:#8ce0a8}
.alert--err{background:rgba(230,57,70,.15);border:1px solid var(--accent);color:#ffb3ba}

/* Footer */
.footer{background:#0a0e12;border-top:1px solid var(--line);padding-top:50px}
.footer__inner{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px;padding-bottom:40px}
.footer p{color:var(--muted);font-size:14px;margin-top:12px;max-width:320px}
.logo--footer{font-size:24px}
.footer__links,.footer__contacts{display:grid;gap:10px;align-content:start}
.footer__links a,.footer__contacts a{color:var(--muted);transition:.2s}
.footer__links a:hover,.footer__contacts a:hover{color:var(--accent2)}
.footer__bottom{border-top:1px solid var(--line);padding:20px 0;color:var(--muted);font-size:13px;text-align:center}

/* Responsive */
@media(max-width:980px){
  .nav__phone{display:none}
  .nav__burger{display:flex}
  .nav__menu{position:fixed;top:60px;right:0;bottom:0;width:260px;background:var(--bg2);flex-direction:column;padding:30px 24px;gap:18px;transform:translateX(100%);transition:.3s;border-left:1px solid var(--line)}
  .nav__menu.open{transform:translateX(0)}
  .hero__inner{grid-template-columns:1fr}
  .hero__image{order:-1}
  .hero__image img{max-height:380px}
  .adv__grid{grid-template-columns:repeat(2,1fr)}
  .catalog__grid{grid-template-columns:repeat(2,1fr)}
  .about__grid,.construction__inner,.contacts__grid{grid-template-columns:1fr}
  .about__media--2{position:static;width:60%;margin-top:16px}
  .services__grid,.portfolio__grid,.reviews__grid{grid-template-columns:1fr}
  .footer__inner{grid-template-columns:1fr}
}
@media(max-width:520px){
  .adv__grid,.catalog__grid{grid-template-columns:1fr}
  .hero__stats{gap:24px}
}