:root{
  --ink:#17213b;
  --ink-2:#3a4256;
  --muted:#767c8b;
  --line:#e4e7f0;
  --bg:#ffffff;
  --bg-soft:#f2f4fb;
  --bg-dark:#233163;
  --brand:#2e3f7e;
  --brand-2:#3a4e97;
  --accent:#ef7d22;
  --accent-dark:#cf6510;
  --accent-soft:#fdecd9;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 6px 24px rgba(20,21,26,.08);
  --shadow-lg:0 18px 50px rgba(20,21,26,.16);
  --maxw:1160px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PT Sans",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);
  line-height:1.6;font-size:16px;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{line-height:1.15;margin:0;font-weight:700;letter-spacing:-.02em}
h1{font-size:clamp(2rem,4.5vw,3.4rem)}
h2{font-size:clamp(1.6rem,3vw,2.4rem)}
h3{font-size:1.25rem}
p{margin:0 0 1rem}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.muted{color:var(--muted)}
.eyebrow{display:inline-block;font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-dark);font-weight:700;margin-bottom:14px}
.eyebrow.light{color:var(--accent)}

/* Кнопки */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--radius-sm);font-weight:600;font-size:.98rem;
  cursor:pointer;border:1.5px solid transparent;transition:.18s;white-space:nowrap;
}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-dark)}
.btn-ghost{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.35)}
.btn-ghost:hover{background:rgba(255,255,255,.2)}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent-dark)}

/* Хедер */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:70px;gap:20px}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{width:42px;height:42px;border-radius:11px;background:var(--bg-dark);color:var(--accent);display:grid;place-items:center;font-weight:800;font-size:1.35rem;flex:none}
.brand-logo{width:46px;height:46px;border-radius:10px;flex:none;object-fit:cover}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{font-size:1.12rem;letter-spacing:-.02em}
.brand-text small{font-size:.72rem;color:var(--muted);max-width:230px}
.nav{display:flex;align-items:center;gap:28px}
.nav a{font-size:.96rem;font-weight:500;color:var(--ink-2);transition:.15s}
.nav a:hover{color:var(--accent-dark)}
.nav-phone{font-weight:700 !important;color:var(--ink) !important}
.nav-toggle,.nav-burger{display:none}

/* Hero */
.hero{background:linear-gradient(140deg,#2e3f7e 0%,#243363 55%,#1b2952 100%);color:#fff;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 82% 18%,rgba(239,125,34,.30),transparent 48%);pointer-events:none}
.hero-inner{padding:clamp(56px,9vw,110px) 0;position:relative;z-index:1}
.hero-text{max-width:720px}
.hero h1{color:#fff;margin-bottom:20px}
.hero-sub{font-size:1.18rem;color:rgba(255,255,255,.82);max-width:600px;margin-bottom:32px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-actions.center{justify-content:center}
.hero-badges{display:flex;gap:36px;margin-top:48px;flex-wrap:wrap}
.hero-badges div{display:flex;flex-direction:column}
.hero-badges strong{font-size:1.15rem;color:var(--accent)}
.hero-badges span{font-size:.9rem;color:rgba(255,255,255,.7)}

/* Секции */
.section{padding:clamp(56px,8vw,96px) 0}
.section-alt{background:var(--bg-soft)}
.section-head{max-width:640px;margin-bottom:44px}
.section-head.between{max-width:none;display:flex;justify-content:space-between;align-items:flex-end;gap:24px}
.section-lead{color:var(--muted);font-size:1.08rem;margin:10px 0 0}

/* Карточки-сетки */
.cards{display:grid;gap:24px}
.cards-3{grid-template-columns:repeat(3,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.2s}

/* Услуги */
.service-card{padding:30px 26px;display:flex;flex-direction:column}
.service-card.tier-business{border-color:var(--accent);box-shadow:var(--shadow)}
.service-top{margin-bottom:14px}
.tier-badge{display:inline-block;background:var(--accent-soft);color:var(--accent-dark);font-size:.76rem;font-weight:700;padding:4px 11px;border-radius:20px;margin-bottom:12px;letter-spacing:.03em}
.tier-business .tier-badge{background:var(--accent);color:#fff}
.price{font-size:1.3rem;font-weight:800;margin-bottom:14px}
.service-desc{color:var(--muted);font-size:.96rem}
.feature-list{list-style:none;padding:0;margin:0 0 22px;flex:1}
.feature-list li{padding:7px 0 7px 26px;position:relative;font-size:.94rem;border-bottom:1px solid var(--line)}
.feature-list li::before{content:"";position:absolute;left:0;top:13px;width:14px;height:8px;border-left:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(-45deg)}
.service-btn{margin-top:auto;width:100%}

/* Этапы */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px}
.step-n{display:grid;place-items:center;width:40px;height:40px;border-radius:10px;background:var(--bg-dark);color:var(--accent);font-weight:800;margin-bottom:16px}
.step h4{margin-bottom:8px;font-size:1.08rem}
.step p{color:var(--muted);font-size:.92rem;margin:0}

/* Проекты */
.project-card{display:flex;flex-direction:column;cursor:pointer}
.project-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:transparent}
.project-thumb{position:relative;aspect-ratio:4/3;background:var(--bg-soft);overflow:hidden}
.project-thumb img{width:100%;height:100%;object-fit:cover;transition:.35s}
.project-card:hover .project-thumb img{transform:scale(1.05)}
.thumb-empty{width:100%;height:100%;display:grid;place-items:center;color:var(--muted);font-size:.9rem}
.photo-count{position:absolute;bottom:10px;right:10px;background:rgba(20,21,26,.8);color:#fff;font-size:.75rem;padding:4px 9px;border-radius:16px}
.thumb-tier{position:absolute;top:10px;left:10px;background:var(--accent);color:#fff;font-size:.72rem;font-weight:700;padding:4px 10px;border-radius:16px}
.project-body{padding:20px}
.project-cat{font-size:.8rem;color:var(--accent-dark);font-weight:600;text-transform:uppercase;letter-spacing:.05em}
.project-body h3{margin:8px 0 6px}
.project-loc{color:var(--muted);font-size:.9rem}

/* О компании */
.section-dark{background:var(--bg-dark);color:#fff}
.section-dark h2{color:#fff}
.about-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:56px;align-items:center}
.about-text{color:rgba(255,255,255,.8);font-size:1.05rem}
.about-facts{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.about-facts div{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius);padding:22px}
.about-facts strong{display:block;font-size:1.5rem;color:var(--accent)}
.about-facts span{color:rgba(255,255,255,.7);font-size:.9rem}

/* CTA */
.cta{background:linear-gradient(120deg,var(--accent) 0%,var(--accent-dark) 100%);color:#fff;text-align:center}
.cta-inner{padding:clamp(48px,7vw,80px) 0}
.cta h2{color:#fff;margin-bottom:12px}
.cta p{color:rgba(255,255,255,.9);font-size:1.1rem;margin-bottom:28px}
.cta .btn-accent{background:#fff;color:var(--accent-dark)}
.cta .btn-accent:hover{background:#f3f3f3}

/* Футер */
.site-footer{background:var(--bg-dark);color:rgba(255,255,255,.75);padding-top:56px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px;padding-bottom:40px}
.footer-brand .brand-text strong{color:#fff}
.footer-tagline{margin-top:14px;font-size:.95rem;max-width:300px}
.footer-col h4{color:#fff;margin-bottom:14px;font-size:1rem}
.footer-col p{margin:0 0 8px;font-size:.95rem}
.footer-col a:hover{color:var(--accent)}
.footer-social{display:flex;gap:14px;margin-bottom:20px}
.footer-social a{color:var(--accent);font-weight:600}
.footer-cta{margin-top:6px}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding:20px 20px;border-top:1px solid rgba(255,255,255,.1);font-size:.85rem;color:rgba(255,255,255,.5)}
.footer-admin{color:rgba(255,255,255,.4)}
.footer-admin:hover{color:var(--accent)}

/* Внутренние страницы */
.page-hero{background:var(--bg-soft);padding:clamp(40px,6vw,72px) 0;border-bottom:1px solid var(--line)}
.page-hero h1{margin-bottom:10px}
.project-hero{background:var(--bg-dark);color:#fff;border:none}
.project-hero h1{color:#fff}
.back-link{color:var(--accent);font-weight:600;font-size:.9rem;display:inline-block;margin-bottom:20px}
.project-meta-top{display:flex;gap:10px;align-items:center;margin-bottom:14px}
.project-hero .project-cat{color:var(--accent)}
.project-facts{display:flex;gap:28px;flex-wrap:wrap;margin-top:18px;color:rgba(255,255,255,.8);font-size:.95rem}
.project-facts b{color:#fff;font-weight:600}
.project-desc{max-width:760px;margin-bottom:40px;font-size:1.08rem;color:var(--ink-2)}
.center-block{text-align:center;max-width:560px;margin:0 auto}
.center-block h1{font-size:5rem;color:var(--accent)}

/* Фильтры */
.filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:36px}
.filter{padding:9px 20px;border:1.5px solid var(--line);border-radius:24px;font-size:.92rem;font-weight:600;color:var(--ink-2);transition:.15s}
.filter:hover{border-color:var(--accent)}
.filter.active{background:var(--bg-dark);color:#fff;border-color:var(--bg-dark)}

/* Галерея + лайтбокс */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.gallery-item{aspect-ratio:4/3;overflow:hidden;border-radius:var(--radius-sm);background:var(--bg-soft);cursor:zoom-in}
.gallery-item img{width:100%;height:100%;object-fit:cover;transition:.3s}
.gallery-item:hover img{transform:scale(1.06)}
.lightbox{position:fixed;inset:0;z-index:100;background:rgba(12,13,16,.94);display:flex;align-items:center;justify-content:center}
.lightbox[hidden]{display:none}
.lightbox img{max-width:90vw;max-height:86vh;border-radius:6px}
.lb-close,.lb-prev,.lb-next{position:absolute;background:rgba(255,255,255,.12);color:#fff;border:none;cursor:pointer;border-radius:50%;display:grid;place-items:center;transition:.15s}
.lb-close:hover,.lb-prev:hover,.lb-next:hover{background:rgba(255,255,255,.25)}
.lb-close{top:22px;right:22px;width:46px;height:46px;font-size:1.8rem}
.lb-prev,.lb-next{top:50%;transform:translateY(-50%);width:54px;height:54px;font-size:2.2rem}
.lb-prev{left:20px}
.lb-next{right:20px}

/* Адаптив */
@media(max-width:900px){
  .cards-3{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .about-grid{grid-template-columns:1fr;gap:32px}
  .section-head.between{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:680px){
  .nav{position:fixed;inset:70px 0 auto 0;background:#fff;flex-direction:column;gap:0;padding:8px 20px 20px;border-bottom:1px solid var(--line);transform:translateY(-120%);transition:.25s;box-shadow:var(--shadow)}
  .nav a{padding:14px 0;width:100%;border-bottom:1px solid var(--line)}
  .nav-toggle:checked ~ .nav{transform:translateY(0)}
  .nav-burger{display:block;width:30px;height:22px;position:relative;cursor:pointer}
  .nav-burger span,.nav-burger span::before,.nav-burger span::after{content:"";position:absolute;left:0;width:100%;height:2.5px;background:var(--ink);border-radius:2px;transition:.2s}
  .nav-burger span{top:10px}
  .nav-burger span::before{top:-8px}
  .nav-burger span::after{top:8px}
  .cards-3,.gallery{grid-template-columns:1fr}
  .steps,.about-facts,.footer-grid{grid-template-columns:1fr 1fr}
  .hero-badges{gap:22px}
  .gallery{grid-template-columns:1fr 1fr}
  .brand-text small{display:none}
}
@media(max-width:400px){
  .steps,.about-facts,.footer-grid,.gallery{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px;align-items:flex-start}
}