/* ============ СервисТелеком — редизайн 2026 ============ */
:root{
  --bg:#12151A; --bg2:#1B2028; --paper:#F6F7F9; --ink:#E9ECF1; --ink-dark:#2A2F38;
  --sig:#F04E23; --sig2:#FF8A00; --grad:linear-gradient(90deg,#F04E23,#FF8A00);
  --line:rgba(255,255,255,.09); --muted:#9AA3AF;
  --font-h:'Manrope',system-ui,sans-serif; --font-t:'Inter',system-ui,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:var(--font-t);line-height:1.6;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{width:min(1200px,92%);margin:0 auto}

/* scroll progress */
.scroll-progress{position:fixed;top:0;left:0;height:3px;width:0;background:var(--grad);z-index:120;transition:width .1s linear}

/* header */
.site-header{position:fixed;top:0;left:0;right:0;z-index:100;transition:background .35s,box-shadow .35s,padding .35s;padding:18px 0}
.site-header.scrolled{background:rgba(18,21,26,.92);backdrop-filter:blur(12px);box-shadow:0 6px 30px rgba(0,0,0,.35);padding:10px 0}
.header-inner{display:flex;align-items:center;gap:36px}
.logo-img{height:52px;width:auto;background:#fff;border-radius:10px;padding:5px 10px;transition:transform .3s}
.logo-link:hover .logo-img{transform:scale(1.04)}
.main-nav{display:flex;gap:28px;margin-left:auto}
.main-nav a{font-weight:500;font-size:15px;color:var(--ink);position:relative;padding:4px 0;opacity:.85;transition:opacity .25s}
.main-nav a::after{content:'';position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--grad);transition:width .3s}
.main-nav a:hover{opacity:1}
.main-nav a:hover::after{width:100%}
.header-phone{font-family:var(--font-h);font-weight:700;font-size:15px;color:var(--ink);white-space:nowrap}
.burger{display:none;background:none;border:0;cursor:pointer;flex-direction:column;gap:5px;padding:6px}
.burger span{width:24px;height:2px;background:var(--ink);transition:.3s}

/* hero */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;overflow:hidden}
.hero-bg{position:absolute;inset:0;background:url('assets/hero_gen.webp') center/cover no-repeat;animation:heroZoom 18s ease-out forwards}
@keyframes heroZoom{from{transform:scale(1.12)}to{transform:scale(1)}}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(100deg,rgba(12,14,18,.94) 0%,rgba(12,14,18,.78) 45%,rgba(12,14,18,.25) 100%)}
.signal-canvas{position:absolute;inset:0;width:100%;height:100%;opacity:.55}
.hero-content{position:relative;z-index:2;padding:140px 0 100px}
.hero-eyebrow{font-size:13px;letter-spacing:.22em;text-transform:uppercase;color:var(--sig2);font-weight:600;margin-bottom:22px;display:flex;align-items:center;gap:12px}
.hero-eyebrow::before{content:'';width:42px;height:2px;background:var(--grad)}
.hero-title{font-family:var(--font-h);font-weight:800;font-size:clamp(38px,5.4vw,72px);line-height:1.06;letter-spacing:-.02em;margin-bottom:24px}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{max-width:560px;color:#C6CCD6;font-size:17px;margin-bottom:36px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:64px}
.btn{display:inline-flex;align-items:center;gap:10px;padding:15px 32px;border-radius:8px;font-family:var(--font-h);font-weight:700;font-size:15px;transition:transform .25s,box-shadow .25s,background .25s}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 28px rgba(240,78,35,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 36px rgba(240,78,35,.5)}
.btn-ghost{border:1px solid rgba(255,255,255,.35);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.1);transform:translateY(-2px)}
.hero-stats{display:flex;gap:48px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:28px}
.stat{display:flex;flex-direction:column}
.stat-num{font-family:var(--font-h);font-weight:800;font-size:34px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-variant-numeric:tabular-nums}
.stat-label{font-size:13px;color:var(--muted)}
.scroll-hint{position:absolute;bottom:28px;left:50%;transform:translateX(-50%);width:26px;height:44px;border:2px solid rgba(255,255,255,.4);border-radius:14px;z-index:2}
.scroll-hint span{position:absolute;top:8px;left:50%;width:4px;height:8px;margin-left:-2px;background:var(--sig2);border-radius:2px;animation:scrollDot 1.8s infinite}
@keyframes scrollDot{0%{opacity:1;transform:translateY(0)}70%{opacity:0;transform:translateY(16px)}100%{opacity:0}}

/* sections */
.section{padding:110px 0}
.section-dark{background:var(--bg)}
.section-paper{background:var(--paper);color:var(--ink-dark)}
.section-head{margin-bottom:56px}
.kicker{font-size:13px;letter-spacing:.22em;text-transform:uppercase;color:var(--sig);font-weight:600;margin-bottom:14px}
.kicker-dark{color:var(--sig)}
.section-head h2{font-family:var(--font-h);font-weight:800;font-size:clamp(30px,3.6vw,46px);line-height:1.12;letter-spacing:-.015em}
.lead{font-size:18px;font-weight:500}

/* about */
.about-grid{display:grid;grid-template-columns:1.3fr .9fr;gap:64px;align-items:start}
.about-text p{margin-bottom:20px;color:#C6CCD6}
.about-text .lead{color:var(--ink)}
.about-card{background:var(--bg2);border:1px solid var(--line);border-radius:16px;padding:36px;position:relative;overflow:hidden}
.about-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad)}
.signal-badge{position:relative;width:64px;height:64px;margin-bottom:24px}
.signal-badge .dot{position:absolute;top:50%;left:50%;width:14px;height:14px;margin:-7px;border-radius:50%;background:var(--grad)}
.pulse-ring{position:absolute;top:50%;left:50%;width:14px;height:14px;margin:-7px;border-radius:50%;border:2px solid var(--sig);animation:pulse 2.4s ease-out infinite}
.pulse-ring.d2{animation-delay:1.2s}
@keyframes pulse{from{transform:scale(1);opacity:.9}to{transform:scale(4.2);opacity:0}}
.check-list{list-style:none}
.check-list li{padding:12px 0 12px 34px;position:relative;border-bottom:1px solid var(--line);font-size:15px}
.check-list li:last-child{border-bottom:0}
.check-list li::before{content:'✓';position:absolute;left:0;top:12px;width:22px;height:22px;border-radius:6px;background:var(--grad);color:#fff;font-size:12px;display:flex;align-items:center;justify-content:center}

/* cooperation */
.coop-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:72px;align-items:center}
.coop-img{position:relative;border-radius:18px;overflow:hidden;box-shadow:0 24px 60px rgba(20,25,35,.18)}
.coop-img img{transition:transform .6s ease}
.coop-img:hover img{transform:scale(1.04)}
.coop-img-caption{position:absolute;bottom:0;left:0;right:0;background:linear-gradient(transparent,rgba(15,18,23,.85));color:#fff;padding:44px 24px 18px;font-size:14px;font-weight:500}
.coop-text p{margin-bottom:18px;color:#4B525D}
.coop-tags{display:flex;gap:12px;flex-wrap:wrap;margin-top:10px}
.tag{padding:8px 18px;border-radius:100px;background:#fff;border:1px solid #E3E6EB;font-weight:600;font-size:14px;color:var(--ink-dark)}

/* services */
.cards-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.service-card{background:var(--bg2);border:1px solid var(--line);border-radius:16px;padding:38px 32px;position:relative;overflow:hidden;transition:transform .35s,box-shadow .35s,border-color .35s}
.service-card:hover{transform:translateY(-8px);border-color:rgba(240,78,35,.5);box-shadow:0 24px 54px rgba(0,0,0,.45)}
.service-card::after{content:'';position:absolute;bottom:0;left:0;width:0;height:3px;background:var(--grad);transition:width .45s}
.service-card:hover::after{width:100%}
.card-num{position:absolute;top:22px;right:26px;font-family:var(--font-h);font-weight:800;font-size:52px;color:rgba(255,255,255,.06)}
.card-icon{width:56px;height:56px;border-radius:14px;background:linear-gradient(135deg,rgba(240,78,35,.18),rgba(255,138,0,.18));color:var(--sig2);font-size:26px;display:flex;align-items:center;justify-content:center;margin-bottom:24px}
.service-card h3{font-family:var(--font-h);font-size:20px;font-weight:700;margin-bottom:14px;line-height:1.3}
.service-card p{font-size:14.5px;color:#B9C0CB;margin-bottom:20px}
.service-card ul{list-style:none}
.service-card li{font-size:13.5px;color:var(--muted);padding:7px 0 7px 22px;position:relative;border-top:1px solid var(--line)}
.service-card li::before{content:'';position:absolute;left:0;top:14px;width:10px;height:2px;background:var(--sig2)}

/* news */
.news-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.news-card{background:#fff;border-radius:14px;overflow:hidden;border:1px solid #E7EAEF;transition:transform .35s,box-shadow .35s;display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-6px);box-shadow:0 20px 44px rgba(20,25,35,.14)}
.news-thumb{display:block;aspect-ratio:16/10;overflow:hidden;background:#0F1216}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.news-card:hover .news-thumb img{transform:scale(1.06)}
.news-body{padding:20px;display:flex;flex-direction:column;gap:8px;flex:1}
.news-date{font-size:12px;color:var(--sig);font-weight:600;letter-spacing:.08em;text-transform:uppercase}
.news-title{font-family:var(--font-h);font-weight:700;font-size:16px;line-height:1.35;color:var(--ink-dark)}
.news-more{margin-top:auto;font-size:14px;color:var(--sig);font-weight:600}

/* contacts */
.contacts-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.contact-block{background:var(--bg2);border:1px solid var(--line);border-radius:16px;padding:36px;transition:border-color .3s}
.contact-block:hover{border-color:rgba(240,78,35,.45)}
.contact-label{font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--sig2);font-weight:600;margin-bottom:16px}
.contact-value{font-family:var(--font-h);font-weight:700;font-size:20px;line-height:1.45}
.contact-link{position:relative;transition:color .25s}
.contact-link:hover{color:var(--sig2)}

/* footer */
.site-footer{background:#0D0F13;border-top:1px solid var(--line);padding:34px 0}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.footer-logo{height:44px;background:#fff;border-radius:8px;padding:4px 8px}
.site-footer p{color:var(--muted);font-size:14px}

/* reveal animations */
.reveal{opacity:0;transform:translateY(34px);transition:opacity .8s cubic-bezier(.2,.6,.2,1),transform .8s cubic-bezier(.2,.6,.2,1)}
.reveal.visible{opacity:1;transform:none}
.delay-1{transition-delay:.12s}.delay-2{transition-delay:.24s}.delay-3{transition-delay:.36s}.delay-4{transition-delay:.48s}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}.hero-bg{animation:none}}

/* responsive */
@media(max-width:1024px){
  .about-grid,.coop-grid{grid-template-columns:1fr;gap:44px}
  .cards-grid{grid-template-columns:1fr;max-width:560px;margin:0 auto}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .contacts-grid{grid-template-columns:1fr}
  .header-phone{display:none}
}
@media(max-width:640px){
  .main-nav{position:fixed;inset:0;background:rgba(13,15,19,.98);flex-direction:column;align-items:center;justify-content:center;gap:30px;font-size:22px;transform:translateX(100%);transition:transform .4s;z-index:99}
  .main-nav.open{transform:none}
  .burger{display:flex;margin-left:auto;z-index:101}
  .main-nav{margin-left:0}
  .news-grid{grid-template-columns:1fr}
  .section{padding:76px 0}
  .hero-stats{gap:26px}
  .stat-num{font-size:26px}
  .logo-img{height:44px}
}