/* ITLEHA — корпоративный сайт. Светлая бизнес-стилистика, палитра Loxone. */

/* ------------------------------------------------------------- токены */
:root{
  --green:#76B82A;
  --green-d:#5E9A1E;
  --green-l:#EAF4DE;
  --ink:#0E100E;
  --ink-2:#2E3532;
  --muted:#6B7570;
  --line:#E3E8E1;
  --bg:#FFFFFF;
  --soft:#F5F8F2;
  --shadow:0 1px 2px rgba(14,16,14,.04), 0 12px 32px rgba(14,16,14,.06);
  --shadow-lg:0 2px 4px rgba(14,16,14,.05), 0 26px 60px rgba(14,16,14,.10);
  --r:14px;
  --wrap:1240px;
  --hdr:76px;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink-2);
  font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
  font-size:17px;line-height:1.65;font-feature-settings:"ss01","cv05";
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{color:var(--ink);margin:0 0 .5em;line-height:1.1;letter-spacing:-.022em;font-weight:700}
h1{font-size:clamp(36px,4.4vw,60px)}
h2{font-size:clamp(28px,2.9vw,42px)}
h3{font-size:clamp(19px,1.35vw,23px);line-height:1.28}
p{margin:0 0 1.1em}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 28px}
.section{padding:96px 0}
.section--soft{background:var(--soft)}
.section--tight{padding:64px 0}
.eyebrow{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.13em;
  text-transform:uppercase;color:var(--green-d);margin-bottom:16px;
}
.lead{font-size:clamp(18px,1.35vw,21px);color:var(--ink-2);max-width:70ch}
.muted{color:var(--muted)}
.center{text-align:center}
.head-block{max-width:760px;margin-bottom:52px}
.head-block.center{margin-left:auto;margin-right:auto}

/* ------------------------------------------------------------- кнопки */
.btn{
  display:inline-flex;align-items:center;gap:10px;justify-content:center;
  padding:15px 28px;border-radius:10px;font-weight:600;font-size:16px;
  background:var(--green);color:#fff;border:1px solid var(--green);
  transition:background .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  box-shadow:0 8px 20px rgba(118,184,42,.22);cursor:pointer;
}
.btn:hover{background:var(--green-d);border-color:var(--green-d);transform:translateY(-1px)}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--line);box-shadow:none}
.btn--ghost:hover{background:var(--ink);border-color:var(--ink);color:#fff}
.btn--light{background:#fff;color:var(--ink);border-color:#fff;box-shadow:none}
.btn--light:hover{background:var(--green);border-color:var(--green);color:#fff}
.btn--sm{padding:11px 20px;font-size:15px}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.arrow{font-size:1.1em;line-height:1}

/* ------------------------------------------------------------- шапка */
.header{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(150%) blur(10px);border-bottom:1px solid var(--line);
}
.header__in{display:flex;align-items:center;gap:32px;height:var(--hdr)}
.logo{display:flex;align-items:center;gap:11px;font-weight:800;color:var(--ink);letter-spacing:-.03em;font-size:22px}
.logo__mark{
  width:34px;height:34px;border-radius:9px;background:var(--ink);position:relative;flex:none;
  display:grid;place-items:center;
}
.logo__mark::after{content:"";width:13px;height:13px;border-radius:3px;background:var(--green)}
.logo__sub{font-size:11px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);display:block;margin-top:-4px}
.nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav a{padding:10px 14px;border-radius:8px;font-size:15.5px;font-weight:500;color:var(--ink-2);transition:color .15s,background .15s}
.nav a:hover{color:var(--ink);background:var(--soft)}
.nav a.is-active{color:var(--green-d);font-weight:600}
.nav__item{position:relative}
.nav__item>a::after{content:"";display:inline-block;width:6px;height:6px;margin-left:8px;border-right:1.6px solid currentColor;border-bottom:1.6px solid currentColor;transform:translateY(-2px) rotate(45deg);opacity:.55}
.drop{
  position:absolute;top:calc(100% + 10px);left:0;min-width:290px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow-lg);padding:10px;
  opacity:0;visibility:hidden;transform:translateY(6px);transition:.18s ease;
}
.nav__item:hover .drop,.nav__item:focus-within .drop{opacity:1;visibility:visible;transform:translateY(0)}
.drop a{display:block;padding:11px 14px;border-radius:9px;font-size:15px}
.drop b{display:block;color:var(--ink);font-weight:600}
.drop span{display:block;font-size:13px;color:var(--muted);line-height:1.4;margin-top:2px}
.header__cta{margin-left:8px}
.burger{display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:10px;margin-left:auto}
.burger span{display:block;width:18px;height:1.8px;background:var(--ink);margin:4px auto;border-radius:2px;transition:.2s}
.burger.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.burger.is-open span:nth-child(2){opacity:0}
.burger.is-open span:nth-child(3){transform:translateY(-5.8px) rotate(-45deg)}

/* ------------------------------------------------------------- герой */
.hero{position:relative;background:var(--ink);color:#fff;overflow:hidden}
.hero__bg{position:absolute;inset:0}
.hero__bg img{width:100%;height:100%;object-fit:cover;opacity:.62}
.hero__bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(8,10,8,.94) 0%,rgba(8,10,8,.80) 42%,rgba(8,10,8,.30) 100%);
}
.hero__in{position:relative;padding:132px 0 118px;max-width:800px}
.hero h1{color:#fff}
.hero .lead{color:rgba(255,255,255,.82)}
.hero .eyebrow{color:#9BDA55}
.hero__tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.tag{
  font-size:13.5px;font-weight:500;padding:7px 14px;border-radius:99px;
  border:1px solid rgba(255,255,255,.24);color:rgba(255,255,255,.86);
}
.hero--inner .hero__in{padding:96px 0 84px;max-width:860px}
.hero--inner .hero__bg img{opacity:.5}

/* ------------------------------------------------------------- цифры */
/* полоса цифр — продолжение тёмного героя, поэтому фон свой, не наследуемый */
.stats{border-top:1px solid rgba(255,255,255,.14);position:relative;background:var(--ink)}
.stats__grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stats__grid>div{padding:30px 28px;border-right:1px solid rgba(255,255,255,.12)}
.stats__grid>div:last-child{border-right:0}
.stats b{display:block;font-size:clamp(28px,2.5vw,36px);color:#fff;font-weight:700;letter-spacing:-.03em;line-height:1.1}
.stats span{font-size:14px;color:rgba(255,255,255,.66)}
.stats--light{background:#fff;border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow)}
.stats--light .stats__grid>div{border-right-color:var(--line)}
.stats--light b{color:var(--ink)}
.stats--light span{color:var(--muted)}

/* ------------------------------------------------------------- карточки */
.grid{display:grid;gap:26px}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--2{grid-template-columns:repeat(2,1fr)}
.grid--4{grid-template-columns:repeat(4,1fr)}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;
  display:flex;flex-direction:column;transition:transform .2s ease,box-shadow .2s ease,border-color .2s;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#D5DED1}
.card__img{aspect-ratio:16/10;overflow:hidden;background:var(--soft)}
.card__img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.card:hover .card__img img{transform:scale(1.04)}
.card__body{padding:26px 26px 28px;display:flex;flex-direction:column;flex:1}
.card__body p{color:var(--muted);font-size:15.5px}
.card__more{margin-top:auto;padding-top:12px;color:var(--green-d);font-weight:600;font-size:15px;display:inline-flex;gap:8px;align-items:center}
.card:hover .card__more .arrow{transform:translateX(3px)}
.card__more .arrow{transition:transform .2s}
.card__meta{font-size:13px;color:var(--muted);display:flex;gap:14px;margin-bottom:10px;text-transform:uppercase;letter-spacing:.07em;font-weight:600}
.card__meta span:first-child{color:var(--green-d)}

/* плитка «почему мы» */
.tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:#fff}
.tile{padding:34px 30px;border-right:1px solid var(--line)}
.tile:last-child{border-right:0}
.tile__ico{width:44px;height:44px;border-radius:11px;background:var(--green-l);display:grid;place-items:center;margin-bottom:18px}
.tile__ico svg{width:22px;height:22px;stroke:var(--green-d);fill:none;stroke-width:1.8}
.tile h3{font-size:18px}
.tile p{font-size:15px;color:var(--muted);margin:0}

/* ------------------------------------------------------------- сплит */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.split--rev .split__media{order:2}
.split__media img{border-radius:var(--r);box-shadow:var(--shadow-lg);width:100%;aspect-ratio:4/3;object-fit:cover}
.checks{list-style:none;padding:0;margin:26px 0 0}
.checks li{position:relative;padding:0 0 14px 34px;color:var(--ink-2)}
.checks li::before{
  content:"";position:absolute;left:0;top:7px;width:20px;height:20px;border-radius:50%;
  background:var(--green-l);
}
.checks li::after{
  content:"";position:absolute;left:6.5px;top:12px;width:7px;height:4px;
  border-left:1.9px solid var(--green-d);border-bottom:1.9px solid var(--green-d);transform:rotate(-45deg);
}
.checks b{color:var(--ink)}

/* ------------------------------------------------------------- этапы */
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.step{padding:28px 26px;background:#fff;border:1px solid var(--line);border-radius:var(--r);position:relative}
.step::before{
  counter-increment:s;content:"0" counter(s);
  font-size:13px;font-weight:700;color:var(--green-d);letter-spacing:.1em;display:block;margin-bottom:14px;
}
.step h3{font-size:18px}
.step p{font-size:15px;color:var(--muted);margin:0}

/* ------------------------------------------------------------- FAQ */
.faq{max-width:900px;margin:0 auto}
.faq details{border-bottom:1px solid var(--line);padding:6px 0}
.faq summary{
  list-style:none;cursor:pointer;padding:20px 44px 20px 0;position:relative;
  font-weight:600;color:var(--ink);font-size:17.5px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"";position:absolute;right:8px;top:26px;width:9px;height:9px;
  border-right:2px solid var(--green-d);border-bottom:2px solid var(--green-d);
  transform:rotate(45deg);transition:transform .2s;
}
.faq details[open] summary::after{transform:rotate(225deg);top:30px}
.faq p{color:var(--muted);margin:0 0 20px;max-width:80ch}

/* ------------------------------------------------------------- CTA */
.cta{background:var(--ink);color:#fff;border-radius:20px;padding:64px 60px;position:relative;overflow:hidden}
.cta::after{
  content:"";position:absolute;right:-90px;top:-90px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(118,184,42,.42),transparent 68%);
}
.cta h2{color:#fff;max-width:20ch}
.cta p{color:rgba(255,255,255,.75);max-width:56ch}
.cta__row{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;position:relative;z-index:2}

/* ------------------------------------------------------------- контакты */
.contact-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:32px;box-shadow:var(--shadow);
}
.contact-card__label{font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-weight:700;margin-bottom:8px}
.contact-card__value{font-size:22px;font-weight:700;color:var(--ink);letter-spacing:-.02em}
.contact-card p{font-size:15px;color:var(--muted);margin:10px 0 20px}

/* ------------------------------------------------------------- статья */
.article{max-width:760px;margin:0 auto}
.article__cover img{border-radius:var(--r);width:100%;aspect-ratio:16/9;object-fit:cover;margin-bottom:44px;box-shadow:var(--shadow)}
.article h2{font-size:clamp(24px,2.1vw,32px);margin-top:52px}
.article h3{margin-top:34px}
.article ul,.article ol{padding-left:22px;margin:0 0 1.2em}
.article li{margin-bottom:9px}
.article blockquote{
  margin:34px 0;padding:22px 28px;background:var(--soft);border-left:3px solid var(--green);
  border-radius:0 var(--r) var(--r) 0;color:var(--ink-2);font-size:18px;
}
.article__meta{display:flex;gap:16px;font-size:14px;color:var(--muted);margin-bottom:26px;text-transform:uppercase;letter-spacing:.07em;font-weight:600}
.article__meta span:first-child{color:var(--green-d)}
.table-wrap{overflow-x:auto;margin:0 0 28px}
table{border-collapse:collapse;width:100%;font-size:15.5px;min-width:520px}
th,td{text-align:left;padding:14px 16px;border-bottom:1px solid var(--line)}
th{background:var(--soft);color:var(--ink);font-weight:600}

/* ------------------------------------------------------------- подвал */
.footer{background:var(--ink);color:rgba(255,255,255,.62);padding:72px 0 34px;font-size:15px}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px}
.footer h4{color:#fff;font-size:15px;letter-spacing:.06em;text-transform:uppercase;margin-bottom:18px}
.footer a{color:rgba(255,255,255,.62);display:block;padding:5px 0}
.footer a:hover{color:var(--green)}
.footer .logo{color:#fff;flex-wrap:nowrap;white-space:nowrap}
.footer .logo__mark{background:rgba(255,255,255,.12)}
.footer__bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:26px;display:flex;justify-content:space-between;gap:20px;font-size:13.5px;color:rgba(255,255,255,.42)}
.footer__desc{max-width:34ch;margin-top:18px}

/* ------------------------------------------------------------- крошки */
.crumbs{font-size:14px;color:rgba(255,255,255,.6);margin-bottom:22px;display:flex;gap:9px;flex-wrap:wrap}
.crumbs a:hover{color:#fff}

/* ------------------------------------------------------------- адаптив */
@media (max-width:1100px){
  .grid--4{grid-template-columns:repeat(2,1fr)}
  .tiles{grid-template-columns:repeat(2,1fr)}
  .tile:nth-child(2){border-right:0}
  .tile:nth-child(1),.tile:nth-child(2){border-bottom:1px solid var(--line)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .footer__grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .nav{
    position:fixed;top:var(--hdr);left:0;right:0;background:#fff;flex-direction:column;
    align-items:stretch;gap:0;padding:14px 20px 26px;border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-lg);display:none;max-height:calc(100vh - var(--hdr));overflow-y:auto;
  }
  .nav.is-open{display:flex}
  .nav a{padding:13px 6px;font-size:16.5px;border-bottom:1px solid var(--line)}
  .nav__item>a::after{display:none}
  .drop{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;padding:0 0 0 14px;min-width:0}
  .drop a{padding:11px 6px}
  .drop span{display:none}
  .header__cta{display:none}
  .burger{display:block}
  .grid--3,.grid--2{grid-template-columns:1fr}
  .split{grid-template-columns:1fr;gap:36px}
  .split--rev .split__media{order:0}
  .stats__grid{grid-template-columns:repeat(2,1fr)}
  .stats__grid>div{border-bottom:1px solid rgba(255,255,255,.12)}
  .stats__grid>div:nth-child(2n){border-right:0}
  .stats--light .stats__grid>div{border-bottom-color:var(--line)}
  .section{padding:70px 0}
  .hero__in{padding:92px 0 78px}
  .cta{padding:44px 28px}
}
@media (max-width:620px){
  body{font-size:16.5px}
  .wrap{padding:0 20px}
  .grid--4,.tiles,.steps{grid-template-columns:1fr}
  .tile{border-right:0;border-bottom:1px solid var(--line)}
  .tile:last-child{border-bottom:0}
  .footer__grid{grid-template-columns:1fr;gap:28px}
  .footer__bottom{flex-direction:column}
  .btn{width:100%}
  .stats__grid{grid-template-columns:1fr}
}