/* ============================================================
   ООО «Заряд» — стили сайта-визитки
   Светлая тема. Шрифты: Rubik (заголовки) + Inter (текст)
   ============================================================ */

:root{
  --bg:#FFFFFF;
  --bg-alt:#F4F7FB;
  --ink:#15202E;          /* заголовки */
  --body:#45556A;         /* основной текст */
  --muted:#5E6B7D;        /* подписи — контраст 5.3:1 на белом (WCAG AA) */
  --primary:#1B5FE0;      /* электрический синий */
  --primary-dark:#1547AA;
  --accent:#FFC02E;       /* энергия / «заряд» */
  --line:#E4EAF2;
  --shadow:0 10px 30px rgba(21,32,46,.07);
  --shadow-lg:0 20px 50px rgba(21,32,46,.12);
  --radius:14px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--body);
  font-family:"Inter",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
h1,h2,h3,h4{font-family:"Rubik",sans-serif;color:var(--ink);line-height:1.15;font-weight:600}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}

/* Доступность: фокус с клавиатуры */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible{
  outline:3px solid var(--primary);
  outline-offset:3px;
  border-radius:4px;
}

.eyebrow{
  font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;
  color:var(--primary);display:inline-flex;align-items:center;gap:10px;margin-bottom:14px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--accent);border-radius:2px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:"Inter",sans-serif;font-weight:600;font-size:15px;
  padding:14px 26px;border-radius:10px;cursor:pointer;border:1px solid transparent;
  transition:transform .15s ease,box-shadow .2s ease,background .2s ease,color .2s ease;
}
.btn--primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(27,95,224,.28)}
.btn--primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 12px 26px rgba(27,95,224,.36)}
.btn--ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn--ghost:hover{border-color:var(--primary);color:var(--primary)}

/* ---------- ШАПКА ---------- */
.header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:28px;height:76px}
.logo{display:flex;align-items:center;gap:12px}
.logo img{height:46px;width:auto}
.logo .logo-fallback{font-family:"Rubik";font-weight:700;font-size:24px;letter-spacing:.04em;color:var(--ink)}
.logo .logo-fallback b{color:var(--primary)}
.nav-links{display:flex;gap:26px;margin-left:auto;font-weight:500;font-size:15px}
.nav-links a{color:var(--body);transition:color .2s}
.nav-links a:hover,.nav-links a.active{color:var(--primary)}
.nav-links a.active{font-weight:600}
.nav-cta{display:flex;align-items:center;gap:18px}
.nav-phone{font-family:"Rubik";font-weight:600;font-size:18px;color:var(--ink);white-space:nowrap}
.nav-phone:hover{color:var(--primary)}

/* бургер */
.burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px;margin-left:auto;z-index:70}
.burger span{width:26px;height:2px;background:var(--ink);border-radius:2px;transition:transform .3s,opacity .25s}
.burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.is-open span:nth-child(2){opacity:0}
.burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- HERO ---------- */
.hero{position:relative;overflow:hidden;padding:72px 0 84px;background:linear-gradient(180deg,#fff,var(--bg-alt))}
.hero .wrap{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.hero-copy{max-width:none}
.hero h1{font-size:clamp(31px,4vw,50px);font-weight:700;letter-spacing:-.015em;margin:6px 0 20px}
.hero h1 .hl{position:relative;color:var(--primary);white-space:nowrap}
.hero h1 .hl::after{content:"";position:absolute;left:0;right:0;bottom:3px;height:9px;background:var(--accent);opacity:.5;z-index:-1;border-radius:3px}
.hero p{font-size:18px;margin-bottom:28px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.trust{display:flex;gap:14px 28px;flex-wrap:wrap;margin-top:38px;padding-top:24px;border-top:1px solid var(--line)}
.trust span{font-size:14px;color:var(--muted);display:inline-flex;align-items:center;gap:8px}
.trust b{color:var(--ink);font-weight:600}
.trust .dot{width:7px;height:7px;border-radius:50%;background:var(--accent)}

/* «Ночная» сцена справа */
.hero-visual{position:relative}
.scene{position:relative;border-radius:20px;overflow:hidden;aspect-ratio:5/4.4;box-shadow:var(--shadow-lg)}
.scene svg{position:absolute;inset:0;width:100%;height:100%;display:block}
.scene-card{position:absolute;left:18px;right:18px;bottom:18px;background:rgba(255,255,255,.96);
  border-radius:14px;padding:16px 18px;box-shadow:0 14px 30px rgba(8,16,33,.28)}
.scene-card .t{font-family:"Rubik";font-weight:600;color:var(--ink);font-size:16px;display:flex;align-items:center;gap:9px}
.scene-card .t i{width:9px;height:9px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(255,192,46,.2)}
.scene-card .tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.scene-card .tags span{font-size:12px;font-weight:600;color:var(--primary);background:rgba(27,95,224,.09);padding:5px 11px;border-radius:7px}

/* reveal-анимация */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- СЕКЦИИ ---------- */
.section{padding:92px 0}
.section--alt{background:var(--bg-alt)}
.sec-head{max-width:660px;margin:0 auto 56px;text-align:center}
.sec-head h2{font-size:clamp(26px,3.6vw,40px);font-weight:700;margin-bottom:14px}
.sec-head p{font-size:17px}

/* ---------- УСЛУГИ ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:30px 28px;transition:transform .2s,box-shadow .25s,border-color .25s}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.card .ico{width:52px;height:52px;border-radius:12px;background:rgba(27,95,224,.08);display:flex;align-items:center;justify-content:center;color:var(--primary);margin-bottom:20px}
.card .ico svg{width:26px;height:26px}
.card h3{font-size:20px;font-weight:600;margin-bottom:10px}
.card p{font-size:15px}

/* ---------- ЦИФРЫ ---------- */
.stats{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff}
.stats .wrap{padding-top:70px;padding-bottom:70px}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat{text-align:center}
.stat-icon{width:48px;height:48px;border-radius:12px;background:rgba(255,255,255,.1);display:flex;align-items:center;justify-content:center;margin:0 auto 16px;color:var(--accent)}
.stat-icon svg{width:24px;height:24px}
.figure{display:flex;align-items:baseline;justify-content:center;gap:2px;line-height:1}
.figure .num,.figure .suffix{
  font-family:"Rubik";font-weight:700;font-size:clamp(38px,4.6vw,54px);
  font-variant-numeric:tabular-nums;
  color:#fff;
}
.figure .suffix{color:var(--accent)}
.stat .cap{margin-top:10px;font-size:14px;color:rgba(255,255,255,.82);max-width:180px;margin-inline:auto}

/* ---------- ПРОЦЕСС ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.steps::before{content:"";position:absolute;top:42px;left:calc(12.5% + 21px);right:calc(12.5% + 21px);height:2px;background:linear-gradient(90deg,var(--accent),var(--primary));border-radius:2px;z-index:0}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;position:relative;z-index:1}
.step .n{font-family:"Rubik";font-weight:700;font-size:15px;color:#fff;background:var(--primary);width:42px;height:42px;border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:18px;box-shadow:0 4px 14px rgba(27,95,224,.35)}
.step h3{font-size:18px;font-weight:600;margin-bottom:8px}
.step p{font-size:14px}

/* ---------- ПРОЕКТЫ ---------- */
.proj-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.proj{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;transition:transform .2s,box-shadow .25s}
.proj:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.proj img{width:100%;aspect-ratio:4/3;object-fit:cover;display:block}
.proj .body{padding:20px 22px}
.proj .body span{font-size:12px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--primary)}
.proj .body h3{font-size:18px;font-weight:600;margin-top:6px}

/* ---------- ПАРТНЁРЫ ---------- */
.partners-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.partner{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:36px 28px;display:flex;flex-direction:column;align-items:center;text-align:center;gap:20px;transition:transform .2s,box-shadow .25s}
.partner:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.partner .logo-wrap{height:80px;display:flex;align-items:center;justify-content:center}
.partner .logo-wrap img{max-height:80px;max-width:160px;width:auto;object-fit:contain}
.partner h3{font-size:16px;font-weight:600;color:var(--ink)}
.partner p{font-size:14px;color:var(--body);line-height:1.55}

/* ---------- ТЕХНИКА ---------- */
.tech-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.tech-card{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;transition:transform .2s,box-shadow .25s}
.tech-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.tech-card img{width:100%;aspect-ratio:4/3;object-fit:cover;display:block}
.tech-body{padding:16px 20px}
.tech-body h3{font-size:16px;font-weight:600;color:var(--ink);margin-bottom:4px}
.tech-body p{font-size:13px;color:var(--muted)}

/* ---------- КОНТАКТЫ ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.contact-h2{font-size:clamp(26px,3.6vw,40px);font-weight:700;margin-bottom:14px}
.c-list{margin-top:26px;display:grid;gap:22px}
.c-item .k{font-size:13px;letter-spacing:.04em;text-transform:uppercase;color:var(--muted);font-weight:600}
.c-item .v{font-family:"Rubik";font-weight:600;font-size:21px;color:var(--ink);margin-top:3px}
.c-item .v a:hover{color:var(--primary)}
.form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow);display:grid;gap:16px}
.form .field{display:grid;gap:7px}
.form label{font-size:13px;font-weight:600;color:var(--ink)}
.form input,.form textarea{
  border:1px solid var(--line);border-radius:10px;padding:13px 14px;font-family:inherit;font-size:15px;
  color:var(--ink);background:var(--bg-alt);transition:border-color .2s,background .2s;width:100%;
}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--primary);background:#fff}
.form textarea{resize:vertical;min-height:96px}
.form .note{font-size:12px;color:var(--muted)}
.form .note a{color:var(--primary)}
.form-success{text-align:center;padding:32px 16px;display:flex;flex-direction:column;align-items:center;gap:14px}
.form-success-icon{width:60px;height:60px;border-radius:50%;background:rgba(34,197,94,.12);display:flex;align-items:center;justify-content:center;font-size:28px;color:#16a34a}
.form-success h3{font-size:22px;font-weight:700;color:var(--ink)}
.form-success p{color:var(--body);font-size:15px}

/* ---------- КНОПКА НАВЕРХ ---------- */
.to-top{position:fixed;bottom:90px;right:20px;z-index:79;width:44px;height:44px;border-radius:50%;background:#fff;border:1px solid var(--line);box-shadow:0 4px 16px rgba(21,32,46,.12);display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;pointer-events:none;transition:opacity .25s,transform .25s,box-shadow .2s;color:var(--ink)}
.to-top.visible{opacity:1;pointer-events:all}
.to-top:hover{box-shadow:0 6px 20px rgba(21,32,46,.2);transform:translateY(-2px)}
@media(max-width:760px){.to-top{bottom:80px}}

/* ---------- ПОДВАЛ ---------- */
.footer{background:var(--ink);color:#cfd8e6;padding:54px 0}
.foot{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:24px 40px;flex-wrap:wrap}
.foot .logo-fallback{color:#fff;font-family:"Rubik";font-weight:700;font-size:20px}
.foot .logo-fallback b{color:var(--accent)}
.foot .reqs{font-size:13px;color:#93a2b8}
.foot-links{display:flex;gap:8px;flex-direction:column;align-items:flex-end}
.foot-links a{font-size:13px;color:#93a2b8;white-space:nowrap}
.foot a:hover,.foot-links a:hover{color:#fff}
.foot-phone{font-family:"Rubik";font-weight:600;font-size:18px;color:#fff}
@media(max-width:760px){
  .foot{grid-template-columns:1fr;text-align:center}
  .foot-links{align-items:center}
}

/* ---------- FAB (мобильная кнопка звонка) ---------- */
.fab{display:none;position:fixed;bottom:22px;right:20px;z-index:80;align-items:center;gap:10px;background:var(--primary);color:#fff;border-radius:50px;padding:13px 22px 13px 18px;font-family:"Rubik",sans-serif;font-weight:600;font-size:15px;box-shadow:0 4px 22px rgba(27,95,224,.5);transition:transform .2s,box-shadow .2s;white-space:nowrap;text-decoration:none}
.fab:hover{transform:translateY(-2px);box-shadow:0 8px 28px rgba(27,95,224,.65);color:#fff}
.fab svg{flex-shrink:0}

/* ---------- ЛАЙТБОКС ---------- */
.lightbox{
  position:fixed;inset:0;z-index:200;
  background:rgba(8,16,30,.92);backdrop-filter:blur(6px);
  display:flex;align-items:center;justify-content:center;
  opacity:0;pointer-events:none;transition:opacity .25s ease;
}
.lightbox.is-open{opacity:1;pointer-events:all}
.lightbox img{
  max-width:92vw;max-height:88vh;
  border-radius:10px;box-shadow:0 30px 80px rgba(0,0,0,.6);
  transform:scale(.93);transition:transform .28s ease;
  object-fit:contain;
}
.lightbox.is-open img{transform:scale(1)}
.lightbox-close{
  position:fixed;top:18px;right:22px;
  width:42px;height:42px;border-radius:50%;
  background:rgba(255,255,255,.12);border:none;cursor:pointer;
  color:#fff;font-size:22px;line-height:1;
  display:flex;align-items:center;justify-content:center;
  transition:background .2s;
}
.lightbox-close:hover{background:rgba(255,255,255,.25)}
.proj img,.tech-card img{cursor:zoom-in}

/* ---------- АДАПТИВ ---------- */
@media(max-width:1100px){
  .nav-phone{display:none}
}
@media(max-width:980px){
  .nav-links{gap:16px;font-size:13px}
}
@media(max-width:920px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-copy{text-align:center;max-width:720px;margin:0 auto}
  .hero-actions{justify-content:center}
  .trust{justify-content:center}
  .hero-visual{display:none}
  .cards,.steps,.proj-grid,.partners-grid,.tech-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:34px}
  .contact-grid{grid-template-columns:1fr;gap:34px}
}
@media(max-width:760px){
  .nav-links,.nav-cta{display:none}
  .burger{display:flex}
  /* мобильное меню */
  .mobile-menu{position:fixed;inset:76px 0 auto 0;background:#fff;border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-lg);transform:translateY(-120%);transition:transform .3s ease;z-index:55;}
  .mobile-menu.is-open{transform:translateY(0)}
  .mobile-menu nav{display:flex;flex-direction:column;padding:14px 24px 24px}
  .mobile-menu a{padding:14px 0;border-bottom:1px solid var(--line);font-weight:600;color:var(--ink)}
  .mobile-menu .btn{margin-top:18px}
  .fab{display:flex}
}
@media(min-width:761px){.mobile-menu{display:none}}
@media(max-width:560px){
  .section{padding:64px 0}
  .hero{padding:72px 0 60px}
  .cards,.steps,.proj-grid,.partners-grid,.tech-grid,.stats-grid{grid-template-columns:1fr}
  .sec-head{margin-bottom:40px}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}