:root{
  --navy-950:#031224;
  --navy-900:#061a33;
  --navy-850:#08213f;
  --navy-800:#0b2c52;
  --blue-500:#2499f4;
  --blue-400:#58b7ff;
  --blue-100:#e5f4ff;
  --white:#fff;
  --paper:#f4f7fb;
  --ink:#102238;
  --muted:#607187;
  --line:#dce6f0;
  --radius-xl:30px;
  --radius-lg:22px;
  --radius-md:15px;
  --shadow:0 24px 64px rgba(3,18,36,.16);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:82px}
body{
  margin:0;
  font-family:"Aptos","Inter","Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);
  background:#fff;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.menu-open{overflow:hidden}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit}
button{cursor:pointer}
.container{width:min(1180px,calc(100% - 40px));margin-inline:auto}
.skip-link{
  position:fixed;z-index:999;left:14px;top:10px;padding:9px 13px;
  color:var(--ink);background:#fff;border-radius:9px;transform:translateY(-160%);
}
.skip-link:focus{transform:none}
.site-header{
  position:fixed;z-index:80;inset:0 0 auto;
  background:rgba(3,18,36,.84);
  border-bottom:1px solid rgba(255,255,255,.08);
  backdrop-filter:blur(16px);
}
.header-inner{min-height:80px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:12px;color:#fff;font-size:1.48rem;font-weight:850;letter-spacing:-.045em}
.brand-mark{display:grid;grid-template-columns:repeat(2,11px);gap:3px}
.brand-mark i{width:11px;height:11px;background:var(--blue-500);border-radius:2px}
.brand em{color:var(--blue-400);font-style:normal}
.nav-links{display:flex;align-items:center;gap:5px}
.nav-links a{
  padding:10px 13px;color:rgba(255,255,255,.78);
  border-radius:10px;font-size:.92rem;font-weight:700;transition:.2s ease;
}
.nav-links a:hover,.nav-links a.active{color:#fff;background:rgba(255,255,255,.09)}
.nav-links .nav-contact{color:#fff;background:var(--blue-500);box-shadow:0 12px 28px rgba(36,153,244,.28)}
.nav-links .nav-contact:hover{background:#168ae1}
.menu-toggle{
  display:none;width:45px;height:45px;border:0;border-radius:12px;
  color:#fff;background:rgba(255,255,255,.09);
}
.menu-toggle span,.menu-toggle:before,.menu-toggle:after{
  content:"";display:block;width:22px;height:2px;margin:5px auto;background:currentColor;transition:.2s;
}
.menu-toggle.open span{opacity:0}
.menu-toggle.open:before{transform:translateY(7px) rotate(45deg)}
.menu-toggle.open:after{transform:translateY(-7px) rotate(-45deg)}

.hero{
  min-height:760px;padding:150px 0 80px;display:grid;align-items:center;color:#fff;
  background:
    linear-gradient(90deg,rgba(3,18,36,.98) 0%,rgba(3,18,36,.90) 37%,rgba(3,18,36,.48) 62%,rgba(3,18,36,.09) 100%),
    linear-gradient(180deg,rgba(3,18,36,.05),rgba(3,18,36,.38)),
    url("images/01-hero-kazetovy-strop-1920x1080.jpg") center right/cover no-repeat;
}
.hero-content{max-width:680px}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;margin-bottom:17px;
  color:var(--blue-400);font-size:.80rem;font-weight:850;letter-spacing:.14em;text-transform:uppercase;
}
.eyebrow:before{content:"";width:34px;height:2px;background:currentColor}
.hero h1,.page-hero h1{
  margin:0;font-size:clamp(3rem,7vw,5.75rem);line-height:.98;
  letter-spacing:-.057em;font-weight:880;
}
.hero h1 span{color:var(--blue-400)}
.hero-lead{max-width:610px;margin:24px 0 0;color:rgba(255,255,255,.81);font-size:clamp(1.03rem,2vw,1.22rem)}
.hero-actions{display:flex;flex-wrap:wrap;gap:13px;margin-top:32px}
.btn{
  min-height:52px;padding:0 22px;border:1px solid transparent;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;gap:9px;font-weight:820;transition:.2s;
}
.btn:hover{transform:translateY(-2px)}
.btn-primary{color:#fff;background:var(--blue-500);box-shadow:0 15px 34px rgba(36,153,244,.30)}
.btn-primary:hover{background:#1387df}
.btn-outline{color:#fff;border-color:rgba(255,255,255,.28);background:rgba(255,255,255,.07);backdrop-filter:blur(10px)}
.btn-outline:hover{background:rgba(255,255,255,.13)}
.hero-badge{
  display:flex;flex-wrap:wrap;gap:28px;margin-top:50px;
}
.hero-badge div{display:grid;gap:2px;padding-left:16px;border-left:2px solid rgba(88,183,255,.55)}
.hero-badge strong{font-size:1.55rem;line-height:1}
.hero-badge span{font-size:.86rem;color:rgba(255,255,255,.62)}

.features{position:relative;margin-top:-42px;z-index:8}
.feature-wrap{
  display:grid;grid-template-columns:repeat(4,1fr);overflow:hidden;
  background:#fff;border:1px solid rgba(220,230,240,.9);border-radius:var(--radius-xl);box-shadow:var(--shadow)
}
.feature{
  min-height:175px;padding:28px;display:flex;gap:16px;align-items:flex-start;
}
.feature+.feature{border-left:1px solid var(--line)}
.icon{
  flex:0 0 auto;width:50px;height:50px;display:grid;place-items:center;
  color:var(--blue-500);background:var(--blue-100);border-radius:15px;
}
.icon svg{width:25px;height:25px}
.feature h3{margin:0 0 5px;font-size:1rem}
.feature p{margin:0;color:var(--muted);font-size:.91rem}

.section{padding:104px 0}
.section-soft{background:var(--paper)}
.section-dark{
  color:#fff;background:
  radial-gradient(circle at 82% -10%,rgba(36,153,244,.20),transparent 38%),
  linear-gradient(135deg,var(--navy-950),var(--navy-800));
}
.heading{max-width:760px;margin-bottom:44px}
.heading.center{text-align:center;margin-inline:auto}
.heading.center .eyebrow{justify-content:center}
.heading h2{
  margin:0;font-size:clamp(2.05rem,4.2vw,3.45rem);
  line-height:1.08;letter-spacing:-.048em;font-weight:860;
}
.heading p{margin:16px 0 0;color:var(--muted);font-size:1.03rem}
.section-dark .heading p{color:rgba(255,255,255,.68)}

.reason-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:17px}
.reason-card{
  padding:27px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  transition:transform .23s ease,box-shadow .23s ease;
}
.reason-card:hover{transform:translateY(-5px);box-shadow:0 20px 44px rgba(3,18,36,.10)}
.reason-card h3{margin:18px 0 7px;font-size:1.06rem}
.reason-card p{margin:0;color:var(--muted);font-size:.94rem}

.gallery-section{
  color:#fff;background:
    linear-gradient(180deg,#061a33,#031224);
}
.gallery-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.gallery-card{
  position:relative;min-height:360px;overflow:hidden;border-radius:16px;
  background:#0b2c52;cursor:zoom-in;border:1px solid rgba(255,255,255,.09);
}
.gallery-card img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.gallery-card:hover img{transform:scale(1.035)}
.gallery-card:after{
  content:"";position:absolute;inset:auto 0 0;height:48%;
  background:linear-gradient(transparent,rgba(3,18,36,.92));
}
.gallery-caption{position:absolute;z-index:2;left:18px;right:18px;bottom:16px}
.gallery-caption strong{display:block;font-size:1rem}
.gallery-caption span{color:rgba(255,255,255,.65);font-size:.84rem}

.about-grid{display:grid;grid-template-columns:1.03fr .97fr;gap:58px;align-items:center}
.about-image{position:relative}
.about-image img{width:100%;min-height:500px;object-fit:cover;border-radius:25px;box-shadow:var(--shadow)}
.about-note{
  position:absolute;right:-20px;bottom:25px;max-width:245px;padding:20px;
  color:#fff;background:var(--navy-900);border:1px solid rgba(255,255,255,.12);
  border-radius:17px;box-shadow:0 22px 46px rgba(3,18,36,.25);
}
.about-note strong{display:block;color:var(--blue-400);font-size:1.15rem}
.about-copy h2{margin:0;font-size:clamp(2.05rem,4vw,3.25rem);line-height:1.08;letter-spacing:-.048em}
.about-copy p{color:var(--muted)}
.checks{display:grid;gap:12px;list-style:none;padding:0;margin:25px 0 0}
.checks li{display:flex;gap:11px;align-items:flex-start}
.checks li:before{
  content:"✓";flex:0 0 auto;width:24px;height:24px;display:grid;place-items:center;
  color:#fff;background:var(--blue-500);border-radius:50%;font-size:.75rem;font-weight:900;
}

.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:17px;counter-reset:step}
.process{
  counter-increment:step;padding:27px;background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.12);border-radius:18px;
}
.process:before{content:"0" counter(step);color:var(--blue-400);font-weight:900;letter-spacing:.13em}
.process h3{margin:30px 0 7px}
.process p{margin:0;color:rgba(255,255,255,.64);font-size:.93rem}

.contact-home{
  padding:76px 0;color:#fff;background:
    linear-gradient(100deg,rgba(3,18,36,.98),rgba(11,44,82,.91)),
    url("images/04-realizacia-open-space-1200x800.jpg") center/cover;
}
.contact-home-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.contact-home h2{margin:0;max-width:660px;font-size:clamp(2.1rem,5vw,4rem);line-height:1.04;letter-spacing:-.05em}
.contact-home p{color:rgba(255,255,255,.70)}
.contact-box{
  display:grid;gap:12px;padding:25px;background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.13);border-radius:18px;backdrop-filter:blur(10px)
}
.contact-row{display:flex;gap:12px;align-items:flex-start}
.contact-row strong{min-width:84px;color:var(--blue-400)}
.fill{color:rgba(255,255,255,.59);font-style:italic}

.site-footer{padding:34px 0;color:rgba(255,255,255,.62);background:var(--navy-950)}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:25px}
.footer-nav{display:flex;gap:19px;flex-wrap:wrap}
.footer-nav a:hover{color:#fff}

.page-hero{
  padding:168px 0 88px;color:#fff;background:
    radial-gradient(circle at 80% 20%,rgba(36,153,244,.23),transparent 30%),
    linear-gradient(135deg,var(--navy-950),var(--navy-800));
}
.page-hero p{max-width:680px;margin:20px 0 0;color:rgba(255,255,255,.72);font-size:1.08rem}
.contact-layout{display:grid;grid-template-columns:.82fr 1.18fr;gap:44px;align-items:start}
.contact-panel{
  padding:31px;color:#fff;background:linear-gradient(145deg,var(--navy-900),var(--navy-800));
  border-radius:23px;box-shadow:var(--shadow);
}
.contact-panel h2{margin-top:0}
.contact-panel .contact-row{padding:14px 0;border-bottom:1px solid rgba(255,255,255,.11)}
.contact-panel .contact-row:last-child{border:0}
.form-card{
  padding:34px;background:#fff;border:1px solid var(--line);
  border-radius:23px;box-shadow:0 22px 55px rgba(3,18,36,.09)
}
.form-card h2{margin-top:0}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:17px}
.field{display:grid;gap:7px}
.field.full{grid-column:1/-1}
.field label{font-weight:780;font-size:.91rem}
.field input,.field textarea{
  width:100%;padding:13px 14px;color:var(--ink);background:#fbfdff;
  border:1px solid #cedbe7;border-radius:11px;outline:none;
}
.field input:focus,.field textarea:focus{border-color:var(--blue-500);box-shadow:0 0 0 4px rgba(36,153,244,.12)}
.field textarea{min-height:155px;resize:vertical}
.form-note{margin:14px 0 0;color:var(--muted);font-size:.85rem}

.lightbox{
  position:fixed;z-index:150;inset:0;display:none;place-items:center;padding:28px;
  background:rgba(1,9,19,.93)
}
.lightbox.visible{display:grid}
.lightbox img{max-width:min(1150px,94vw);max-height:84vh;border-radius:17px;box-shadow:0 30px 80px rgba(0,0,0,.5)}
.lightbox button{
  position:absolute;right:18px;top:18px;width:48px;height:48px;border:0;border-radius:50%;
  color:#fff;background:rgba(255,255,255,.13);font-size:1.8rem;
}
.reveal{opacity:0;transform:translateY(20px);transition:opacity .6s ease,transform .6s ease}
.reveal.visible{opacity:1;transform:none}

@media(max-width:1020px){
  .feature-wrap,.reason-grid,.process-grid{grid-template-columns:repeat(2,1fr)}
  .feature+.feature{border-left:0}
  .feature:nth-child(even){border-left:1px solid var(--line)}
  .feature:nth-child(n+3){border-top:1px solid var(--line)}
  .gallery-grid{grid-template-columns:repeat(2,1fr)}
  .about-grid,.contact-home-grid,.contact-layout{grid-template-columns:1fr}
  .about-note{right:16px}
}
@media(max-width:820px){
  .menu-toggle{display:block}
  .nav-links{
    position:fixed;inset:80px 18px auto;display:none;flex-direction:column;align-items:stretch;
    padding:12px;background:rgba(3,18,36,.98);border:1px solid rgba(255,255,255,.11);
    border-radius:16px;box-shadow:var(--shadow)
  }
  .nav-links.open{display:flex}
  .nav-links a{text-align:center}
  .hero{
    min-height:720px;background:
      linear-gradient(90deg,rgba(3,18,36,.97),rgba(3,18,36,.72)),
      url("images/01-hero-kazetovy-strop-1920x1080.jpg") center/cover no-repeat;
  }
}
@media(max-width:640px){
  .container{width:min(100% - 28px,1180px)}
  .section{padding:76px 0}
  .hero{min-height:690px;padding-top:128px}
  .hero h1,.page-hero h1{font-size:clamp(2.65rem,14vw,4.1rem)}
  .hero-actions .btn{width:100%}
  .hero-badge{gap:21px}
  .features{margin-top:-24px}
  .feature-wrap,.reason-grid,.process-grid,.gallery-grid,.form-grid{grid-template-columns:1fr}
  .feature+.feature,.feature:nth-child(even){border-left:0;border-top:1px solid var(--line)}
  .gallery-card{min-height:310px}
  .about-image img{min-height:360px}
  .about-note{position:static;max-width:none;margin-top:-28px;margin-inline:14px}
  .contact-row{flex-direction:column;gap:2px}
  .contact-row strong{min-width:0}
  .footer-inner{align-items:flex-start;flex-direction:column}
  .field.full{grid-column:auto}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  .reveal{opacity:1;transform:none}
}