:root{
  --blue:#1a47c4;
  --blue-dark:#123399;
  --ink:#00051a;
  --ink-2:#1d1d1f;
  --muted:#5b6270;
  --line:#e5e6e8;
  --bg:#ffffff;
  --bg-alt:#f0f2f4;
  --radius:18px;
  --shadow:0 8px 48px rgba(0,5,26,.07);
  --shadow-sm:0 2px 6px rgba(0,5,26,.06);
  --container:1160px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}

.container{width:100%;max-width:var(--container);margin-inline:auto;padding-inline:22px}

/* ---------- logo ---------- */
.logo{display:inline-flex;align-items:baseline;gap:4px;font-weight:900;font-style:italic;font-size:26px;letter-spacing:-.5px}
.logo-si{color:var(--ink)}
.logo-za{color:var(--blue)}
.logo-sro{font-size:12px;font-style:normal;font-weight:700;color:var(--ink);margin-left:2px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:600;font-size:15px;line-height:1;border:0;cursor:pointer;
  padding:15px 28px;border-radius:999px;transition:.18s ease;white-space:nowrap;
}
.btn-sm{padding:11px 20px;font-size:14px}
.btn-block{width:100%;padding:16px}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 6px 18px rgba(26,71,196,.22)}
.btn-primary:hover{background:var(--blue-dark);transform:translateY(-1px);box-shadow:0 10px 24px rgba(26,71,196,.28)}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--ink-2)}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue)}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:.2s}
.site-header.scrolled{border-bottom-color:var(--line);box-shadow:0 2px 12px rgba(15,17,21,.05)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.nav{display:flex;gap:28px;margin-left:auto;font-weight:600;font-size:15px}
.nav a{color:var(--ink-2);transition:.15s}
.nav a:hover{color:var(--blue)}
.nav-cta{margin-left:6px}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px;margin-left:auto}
.nav-toggle span{width:24px;height:2px;background:var(--ink);border-radius:2px;transition:.2s}
.mobile-menu{display:none;flex-direction:column;gap:4px;padding:0 22px;background:#fff;border-bottom:1px solid var(--line)}
.mobile-menu.open{display:flex;padding-block:14px}
.mobile-menu a{padding:12px 4px;font-weight:600;border-bottom:1px solid var(--line)}
.mobile-menu a:last-child{border:0;margin-top:8px;justify-content:center}

/* ---------- hero ---------- */
.hero{background:linear-gradient(180deg,#f5f7fb 0%,#fff 100%);overflow:hidden}
.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;padding-block:72px 84px}
.hero-eyebrow{color:var(--blue);font-weight:700;font-size:15px;letter-spacing:.5px;margin-bottom:14px;font-style:italic}
.hero h1{font-size:clamp(40px,5.6vw,68px);font-weight:800;line-height:1.04;letter-spacing:-.045em}
.hero h1 .accent{color:var(--blue)}
.hero-sub{margin:22px 0 30px;font-size:18px;color:var(--muted);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-badges{display:flex;flex-wrap:wrap;gap:20px;list-style:none;margin-top:28px;font-size:14px;font-weight:600;color:var(--ink-2)}

/* hero vizuál – štylizované žalúzie s jemnou animáciou */
.hero-visual{display:flex;justify-content:center}
.hero-card{width:100%;max-width:420px;aspect-ratio:4/5;border-radius:22px;overflow:hidden;
  background:linear-gradient(135deg,var(--blue) 0%,var(--blue-dark) 100%);
  box-shadow:0 30px 60px rgba(0,5,26,.30);display:flex;align-items:stretch;
  animation:heroReveal .9s ease both}
.hero-video{width:100%;height:100%;object-fit:cover;display:block}
@keyframes heroReveal{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}

/* ---------- sections ---------- */
.section{padding-block:96px}
.section-alt{background:var(--bg-alt)}
.section-head{text-align:center;max-width:640px;margin:0 auto 52px}
.eyebrow{color:var(--blue);font-weight:700;font-size:13px;letter-spacing:1.2px;text-transform:uppercase;margin-bottom:14px}
.eyebrow-light{color:#8fb0ff}
.section-head h2{font-size:clamp(29px,3.6vw,44px);font-weight:800;letter-spacing:-.035em;line-height:1.1}
.lead{margin-top:14px;color:var(--muted);font-size:17px}
.lead-light{color:#aeb6c6}

/* ---------- services ---------- */
.services-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.service-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;transition:.2s}
.service-card:hover{border-color:transparent;box-shadow:var(--shadow);transform:translateY(-3px)}
.service-ico{display:inline-flex;width:52px;height:52px;align-items:center;justify-content:center;border-radius:12px;background:rgba(26,71,196,.08);color:var(--blue);margin-bottom:16px}
.service-ico svg{width:30px;height:30px}
.service-card h3{font-size:18px;font-weight:700;margin-bottom:6px}
.service-card p{font-size:14.5px;color:var(--muted)}
.service-cta{background:var(--ink);color:#fff;display:flex;flex-direction:column;justify-content:center;align-items:flex-start}
.service-cta h3,.service-cta p{color:#fff}
.service-cta p{color:#b9bfcc;margin-bottom:16px}

/* ---------- galéria ---------- */
.gallery-filters{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-bottom:30px}
.gf-btn{font:inherit;font-weight:600;font-size:14px;padding:9px 18px;border-radius:30px;border:1.5px solid var(--line);background:#fff;color:var(--ink-2);cursor:pointer;transition:.15s}
.gf-btn:hover{border-color:var(--blue);color:var(--blue)}
.gf-btn.is-active{background:var(--blue);border-color:var(--blue);color:#fff}
.gallery-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.g-item{margin:0;border-radius:var(--radius);overflow:hidden;background:#fff;border:1px solid var(--line)}
.g-ph{display:block;aspect-ratio:4/3;position:relative;overflow:hidden}
.g-ph img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.g-item:hover .g-ph img{transform:scale(1.06)}
.g-ph:not(:has(img))::after{content:'foto';position:absolute;right:10px;bottom:8px;font-size:11px;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:rgba(255,255,255,.75)}
.g-ph-1{background:linear-gradient(135deg,#1a47c4,#123399)}
.g-ph-2{background:linear-gradient(135deg,#2b3444,#0f1115)}
.g-ph-3{background:linear-gradient(135deg,#3a6df0,#1a47c4)}
.g-ph-4{background:linear-gradient(135deg,#1a1d24,#2b3444)}
.g-ph-5{background:linear-gradient(135deg,#123399,#0a1f66)}
.g-ph-6{background:linear-gradient(135deg,#4a76f2,#2b52c9)}
.g-ph-7{background:linear-gradient(135deg,#0f1115,#1a47c4)}
.g-ph-8{background:linear-gradient(135deg,#2b3444,#123399)}
.g-item figcaption{padding:12px 14px;font-size:13.5px;font-weight:600;color:var(--ink-2)}
.gallery-note{text-align:center;margin-top:22px;font-size:13.5px;color:var(--muted)}

/* ---------- values ---------- */
.values-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.value{text-align:center;padding:10px}
.value-ico{display:inline-flex;width:64px;height:64px;align-items:center;justify-content:center;border-radius:16px;background:#fff;box-shadow:var(--shadow);color:var(--blue);margin-bottom:16px}
.value-ico svg{width:30px;height:30px}
.value h3{font-size:19px;font-weight:700;margin-bottom:8px}
.value p{font-size:15px;color:var(--muted)}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.step{position:relative;padding:28px 22px;background:#fff;border:1px solid var(--line);border-radius:var(--radius)}
.step-num{font-size:34px;font-weight:900;font-style:italic;color:rgba(26,71,196,.18);display:block;margin-bottom:8px}
.step h3{font-size:18px;font-weight:700;margin-bottom:6px}
.step p{font-size:14.5px;color:var(--muted)}

/* ---------- contact ---------- */
.section-dark{background:var(--ink);color:#fff}
.contact-inner{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.contact-info h2{font-size:clamp(26px,3vw,36px);font-weight:800;letter-spacing:-.6px;margin-bottom:12px}
.contact-list{list-style:none;margin-top:30px;display:flex;flex-direction:column;gap:12px}
.contact-list a{display:flex;align-items:center;gap:16px;padding:14px 16px;border:1px solid rgba(255,255,255,.12);border-radius:12px;transition:.18s}
.contact-list a:hover{border-color:var(--blue);background:rgba(26,71,196,.12)}
.ci-ico{display:inline-flex;width:44px;height:44px;flex:none;align-items:center;justify-content:center;border-radius:10px;background:var(--blue);color:#fff}
.ci-ico svg{width:22px;height:22px}
.contact-list span small{display:block;font-size:12px;color:#9aa3b5;font-weight:500}
.contact-list span{font-weight:700;font-size:16px}

.contact-form{background:#fff;color:var(--ink);border-radius:18px;padding:30px}
.form-title{font-weight:800;font-size:20px;margin-bottom:20px}
.field{margin-bottom:16px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:6px}
.field input,.field textarea{width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:10px;font:inherit;font-size:15px;transition:.15s;background:#fbfcfe}
.field input:focus,.field textarea:focus{outline:0;border-color:var(--blue);background:#fff}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.check{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--muted);margin-bottom:18px;cursor:pointer}
.check input{margin-top:3px;accent-color:var(--blue)}
.form-note{text-align:center;font-size:12.5px;color:var(--muted);margin-top:12px}

/* ---------- footer ---------- */
.site-footer{background:#0a0c10;color:#cfd4de}
.footer-inner{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px;padding-block:56px 40px}
.footer-brand p{margin-top:14px;font-size:14.5px;color:#8b93a4;max-width:340px}
.logo-footer .logo-si,.logo-footer .logo-sro{color:#fff}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-col a{display:block;font-size:14.5px;color:#8b93a4;padding:5px 0;transition:.15s}
.footer-col a:hover{color:#fff}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;gap:14px;padding-block:20px;border-top:1px solid rgba(255,255,255,.08);font-size:13px;color:#7a8294;flex-wrap:wrap}
.credit{color:#7a8294;transition:.15s}
.credit:hover{color:var(--blue)}

/* ---------- floating whatsapp ---------- */
.fab-wa{position:fixed;right:20px;bottom:20px;z-index:60;width:56px;height:56px;border-radius:50%;background:#25d366;color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 24px rgba(37,211,102,.45);transition:.2s}
.fab-wa:hover{transform:scale(1.06)}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .nav,.nav-cta{display:none}
  .nav-toggle{display:flex}
  .hero-inner{grid-template-columns:1fr;padding-block:48px 56px}
  .hero-visual{order:-1;max-width:320px;margin-inline:auto}
  .hero-card{max-width:280px}
  .services-grid{grid-template-columns:repeat(2,1fr)}
  .values-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .gallery-grid{grid-template-columns:repeat(2,1fr)}
  .contact-inner{grid-template-columns:1fr;gap:36px}
  .footer-inner{grid-template-columns:1fr;gap:28px}
}
@media (max-width:540px){
  .section{padding-block:56px}
  .services-grid,.values-grid,.steps,.gallery-grid{grid-template-columns:1fr}
  .field-row{grid-template-columns:1fr}
  .hero-badges{gap:12px}
}
@media (prefers-reduced-motion:reduce){
  *{scroll-behavior:auto!important;transition:none!important;animation:none!important}
}