:root {
  --primary: #1a73e8;
  --primary-dark: #0d47a1;
  --accent: #00bcd4;
  --bg: #0a0e1a;
  --bg-card: #111827;
  --bg-section: #0f1729;
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --border: #1e293b;
  --radius: 12px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Inter',sans-serif;background:var(--bg);color:var(--text);line-height:1.6;overflow-x:hidden}
a{color:var(--accent);text-decoration:none}
img{max-width:100%;height:auto}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* Header */
.header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(10,14,26,.85);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.05);transition:.3s}
.header.scrolled{background:rgba(10,14,26,.95)}
.header .container{display:flex;align-items:center;justify-content:space-between;height:70px}
.logo{font-size:20px;font-weight:700;letter-spacing:-.5px}
.logo span{color:var(--accent)}
.nav{display:flex;gap:32px;list-style:none}
.nav a{color:var(--text-muted);font-size:14px;font-weight:500;transition:.2s}
.nav a:hover{color:#fff}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;background:none;border:none;padding:4px}
.hamburger span{width:24px;height:2px;background:var(--text);border-radius:2px;transition:.3s}

/* Hero */
.hero{min-height:100vh;display:flex;align-items:center;position:relative;overflow:hidden;padding-top:70px}
.hero-bg{position:absolute;inset:0;z-index:0;overflow:hidden}
.hero-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.5}
.hero-bg .overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(10,14,26,.95) 0%,rgba(10,14,26,.6) 50%,rgba(10,14,26,.88) 100%)}
.hero-grid{position:absolute;inset:0;background-image:radial-gradient(rgba(26,115,232,.08) 1px,transparent 1px);background-size:40px 40px}
.hero-content{position:relative;z-index:1;max-width:800px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 16px;background:rgba(26,115,232,.15);border:1px solid rgba(26,115,232,.3);border-radius:100px;font-size:13px;font-weight:500;color:var(--accent);margin-bottom:24px}
.hero h1{font-size:clamp(36px,5vw,64px);font-weight:800;line-height:1.08;letter-spacing:-1.5px;margin-bottom:20px}
.hero h1 em{font-style:normal;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero p{font-size:18px;color:var(--text-muted);margin-bottom:36px;max-width:600px;line-height:1.7}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 32px;border-radius:100px;font-size:15px;font-weight:600;transition:.25s;cursor:pointer;border:none;font-family:inherit}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 8px 30px rgba(26,115,232,.3)}
.btn-outline{background:transparent;color:var(--text);border:1px solid var(--border)}
.btn-outline:hover{border-color:var(--text-muted);transform:translateY(-2px)}

.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:64px;padding-top:32px;border-top:1px solid var(--border)}
.hero-stat{text-align:center}
.hero-stat .num{font-size:28px;font-weight:800;color:#fff;letter-spacing:-.5px}
.hero-stat .label{font-size:13px;color:var(--text-muted);margin-top:4px}

/* Section common */
.section{padding:100px 0}
.section-label{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:1.5px;color:var(--accent);margin-bottom:12px}
.section-title{font-size:clamp(28px,3.5vw,44px);font-weight:700;letter-spacing:-1px;margin-bottom:16px}
.section-sub{font-size:17px;color:var(--text-muted);max-width:600px;line-height:1.7}

/* About */
#about .about-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;margin-top:48px;align-items:stretch}
#about .about-visual{position:relative;border-radius:var(--radius);overflow:hidden;background:linear-gradient(135deg,#0f1729,#1a2332);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;min-height:100%}
#about .about-visual-bg{width:100%;display:flex;align-items:center;justify-content:center;padding:24px 16px}
#about .about-photo{max-width:100%;width:100%;height:auto;object-fit:contain;border-radius:8px;box-shadow:0 8px 32px rgba(0,0,0,.4);display:block}
#about .about-features{display:grid;grid-template-columns:1fr 1fr;gap:16px}
#about .about-feature{display:flex;align-items:flex-start;gap:14px;padding:16px;background:var(--bg-card);border-radius:var(--radius);border:1px solid var(--border);transition:.2s}
#about .about-feature:hover{border-color:rgba(26,115,232,.3)}
#about .about-feature i{color:var(--accent);font-size:18px;margin-top:2px;min-width:20px}
#about .about-feature strong{display:block;font-size:14px;margin-bottom:2px}
#about .about-feature span{font-size:13px;color:var(--text-muted)}

/* Infrastructure */
.infra{background:var(--bg-section)}
.infra-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:48px}
.infra-card{padding:32px;background:var(--bg-card);border-radius:var(--radius);border:1px solid var(--border);transition:.3s}
.infra-card:hover{border-color:rgba(26,115,232,.3);transform:translateY(-4px)}
.infra-card .icon{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:20px;background:rgba(26,115,232,.1);color:var(--accent)}
.infra-card h3{font-size:17px;font-weight:600;margin-bottom:8px}
.infra-card p{font-size:14px;color:var(--text-muted);line-height:1.7}

/* Characteristics */
.specs-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:48px}
.spec-group{padding:32px;background:var(--bg-card);border-radius:var(--radius);border:1px solid var(--border)}
.spec-group h3{font-size:16px;font-weight:600;margin-bottom:20px;display:flex;align-items:center;gap:10px}
.spec-group h3 i{color:var(--accent)}
.spec-item{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px solid var(--border);font-size:14px}
.spec-item:last-child{border-bottom:none}
.spec-item .key{color:var(--text-muted)}
.spec-item .val{font-weight:500;text-align:right}

/* Use cases */
.usecases-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:48px}

/* Gallery */
.gallery{background:var(--bg-section)}
.gallery-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:48px}
.gallery-item,.gallery-card{position:relative;border-radius:10px;overflow:hidden;cursor:pointer;aspect-ratio:4/3;background:var(--bg-card);border:1px solid var(--border);transition:.3s}
.gallery-item:hover,.gallery-card:hover{transform:scale(1.02);border-color:rgba(26,115,232,.3);z-index:2}
.gallery-item img,.gallery-card img{width:100%;height:100%;object-fit:cover;transition:.4s}
.gallery-item:hover img,.gallery-card:hover img{transform:scale(1.1)}
.gallery-overlay,.card-overlay{position:absolute;inset:0;background:linear-gradient(0deg,rgba(0,0,0,.75) 0%,transparent 50%);opacity:.85;transition:.3s;display:flex;flex-direction:column;align-items:flex-start;justify-content:flex-end;padding:16px;gap:4px}
.card-title{color:#fff;font-size:14px;font-weight:600}
.card-count{color:rgba(255,255,255,.7);font-size:12px}
.gallery-item:hover .gallery-overlay,.gallery-card:hover .card-overlay{opacity:1}
.gallery-info{display:flex;align-items:center;gap:8px;color:#fff;font-size:13px;font-weight:500}
.gallery-info i{font-size:12px;opacity:.7}

/* Lightbox */
.lightbox{display:none;position:fixed;inset:0;z-index:1000;background:rgba(0,0,0,.92);backdrop-filter:blur(8px);align-items:center;justify-content:center;padding:40px}
.lightbox.active{display:flex}
.lightbox-close{position:fixed;top:16px;right:16px;background:rgba(0,0,0,.5);border:none;color:#fff;font-size:24px;cursor:pointer;width:44px;height:44px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:.2s;z-index:1005}
.lightbox-close:hover{background:rgba(255,255,255,.2)}
.lightbox-nav{position:absolute;top:50%;transform:translateY(-50%);background:rgba(255,255,255,.08);border:none;color:#fff;font-size:24px;cursor:pointer;width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;transition:.2s;z-index:5}
.lightbox-nav:hover{background:rgba(255,255,255,.15)}
.lightbox-prev{left:24px}
.lightbox-next{right:24px}
.lightbox-img{max-width:90vw;max-height:90vh;border-radius:8px;object-fit:scale-down;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.lightbox-counter{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);color:rgba(255,255,255,.6);font-size:14px;font-weight:500}
.lightbox-caption{position:absolute;bottom:60px;left:50%;transform:translateX(-50%);color:rgba(255,255,255,.8);font-size:15px;text-align:center;max-width:80%}


/* ===== Анимации ===== */
@keyframes fadeUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.section{animation:fadeUp .6s ease-out both}
.hero-content{animation:fadeUp .8s ease-out .2s both}
.hero-stats{animation:fadeUp .8s ease-out .4s both}

@media(max-width:900px){
  .gallery-grid{grid-template-columns:repeat(2,1fr)}
  .lightbox{padding:0}
  .lightbox-img{max-width:100vw;max-height:100vh;border-radius:0}
  .lightbox-nav{width:40px;height:40px;font-size:16px}
  .lightbox-prev{left:4px}
  .lightbox-next{right:4px}
  .lightbox-close{top:8px;right:8px;width:40px;height:40px;font-size:22px}
  .lightbox-counter{bottom:12px;font-size:13px}
  .lightbox-caption{bottom:44px;font-size:13px;max-width:90%}
}
@media(max-width:540px){
  .gallery-grid{grid-template-columns:1fr 1fr;gap:8px}
}
.usecase-card{text-align:center;padding:36px 20px;background:var(--bg-card);border-radius:var(--radius);border:1px solid var(--border);transition:.3s}
.usecase-card:hover{border-color:rgba(26,115,232,.3);transform:translateY(-4px)}
.usecase-card .icon{width:64px;height:64px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:26px;margin:0 auto 16px;background:rgba(26,115,232,.1);color:var(--accent)}
.usecase-card h3{font-size:16px;font-weight:600;margin-bottom:8px}
.usecase-card p{font-size:13px;color:var(--text-muted);line-height:1.6}

/* Interactive Scheme */
.plan{background:var(--bg)}
.plan-wrapper{position:relative;margin-top:48px;max-width:900px;margin-left:auto;margin-right:auto}
.plan-img{width:100%;height:auto;border-radius:var(--radius);display:block}
.plan-svg{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none}
.plan-svg .zone{pointer-events:all;cursor:pointer;transition:.2s}
.plan-svg .zone rect,.plan-svg .zone path{stroke-width:2.5;transition:.3s}
.plan-svg .zone:hover rect,.plan-svg .zone:hover path{stroke-width:3.5;filter:brightness(1.2)}
.plan-svg .zone{opacity:0;transition:opacity .3s}
.plan-svg .zone.active{opacity:1}
.plan-svg .zone:hover{opacity:1}
.plan-tooltip{position:absolute;z-index:10;background:rgba(15,23,41,.95);border:1px solid var(--border);border-radius:10px;padding:12px 16px;font-size:13px;pointer-events:none;opacity:0;transition:.2s;max-width:240px;box-shadow:0 8px 32px rgba(0,0,0,.4)}
.plan-tooltip.visible{opacity:1}
.plan-tooltip .tt-title{font-weight:600;color:#fff;font-size:14px;margin-bottom:4px}
.plan-tooltip .tt-title i{margin-right:6px;color:var(--accent)}
.plan-tooltip .tt-desc{color:var(--text-muted);font-size:12px;line-height:1.5}
.plan-legend{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;justify-content:center}
.plan-legend-item{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--text-muted);padding:4px 12px;background:var(--bg-card);border-radius:6px;border:1px solid var(--border)}
.plan-legend-item .dot{width:12px;height:12px;border-radius:3px;flex-shrink:0}
.plan-tip{text-align:center;margin-top:16px;font-size:13px;color:var(--text-muted)}
.plan-tip i{color:var(--accent);margin-right:6px}

/* Location */
.location-section{background:var(--bg-section)}
.location-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;margin-top:48px}
.location-map{height:400px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);background:var(--bg-card)}
.location-map iframe{width:100%;height:100%;border:none;filter:grayscale(.9) invert(.9)}
.location-info h3{font-size:18px;font-weight:600;margin-bottom:16px}
.location-distances{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.location-dist{display:flex;align-items:center;justify-content:space-between;padding:10px 16px;background:var(--bg-card);border-radius:8px;font-size:14px}
.location-dist .city{color:var(--text)}
.location-dist .dist{color:var(--text-muted);font-weight:500}

/* Contacts */
.contacts{background:var(--bg)}
.contacts-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;margin-top:48px;align-items:stretch}
.contacts-info{padding:32px;background:var(--bg-card);border-radius:var(--radius);border:1px solid var(--border);height:100%}
.contacts-info h3{font-size:18px;font-weight:600;margin-bottom:8px}
.contacts-info .sub{color:var(--text-muted);font-size:14px;margin-bottom:24px}
.contact-item{display:flex;align-items:center;gap:14px;padding:14px 0;border-bottom:1px solid var(--border)}
.contact-item:last-child{border-bottom:none}
.contact-item i{width:36px;height:36px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:rgba(26,115,232,.1);color:var(--accent);font-size:16px}
.contact-item .label{font-size:12px;color:var(--text-muted)}
.contact-item .value{font-size:15px;font-weight:500}
.contact-form{display:flex;flex-direction:column;gap:16px}
.contact-form input,.contact-form textarea{padding:14px 18px;background:var(--bg-card);border:1px solid var(--border);border-radius:10px;color:var(--text);font-size:15px;font-family:inherit;transition:.2s;outline:none}
.contact-form input:focus,.contact-form textarea:focus{border-color:var(--primary)}
.contact-form textarea{resize:vertical;min-height:120px}
.contact-form .btn{align-self:flex-start}

/* Footer */
.footer{padding:40px 0;border-top:1px solid var(--border);text-align:center;font-size:14px;color:var(--text-muted)}

/* Animations */
.animate{opacity:0;transform:translateY(24px);transition:.7s ease-out}
.animate.visible{opacity:1;transform:translateY(0)}

/* Responsive */
@media(max-width:900px){
  .nav{display:none;position:fixed;top:70px;left:0;right:0;background:var(--bg);flex-direction:column;gap:0;padding:16px;border-bottom:1px solid var(--border)}
  .nav.open{display:flex}
  .nav a{padding:14px 0;border-bottom:1px solid var(--border)}
  .hamburger{display:flex}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  #about .about-grid,.location-grid,.contacts-grid{grid-template-columns:1fr}
  #about .about-features,.specs-grid{grid-template-columns:1fr}
  .infra-grid,.usecases-grid{grid-template-columns:1fr 1fr}
  .section{padding:60px 0}
}
@media(max-width:540px){
  .infra-grid,.usecases-grid{grid-template-columns:1fr}
  .hero-stats{grid-template-columns:1fr 1fr;gap:16px}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%;justify-content:center}
}