/* DEFROZ NDT — sdílený styl pro detailní stránky (Služby, Metody) */
:root{
  --navy:#0c2433; --navy-2:#10314a; --steel:#1e6091;
  --accent:#f5a623; --accent-d:#d6860a;
  --ink:#0f1b24; --muted:#5c6b78; --bg:#f4f7f9;
  --line:#e3e9ee; --white:#fff;
  --radius:16px; --maxw:1140px;
  --shadow:0 10px 30px -12px rgba(12,36,51,.18);
  --shadow-lg:0 24px 60px -20px rgba(12,36,51,.28);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.65;font-size:17px;-webkit-font-smoothing:antialiased}
a{color:var(--steel);text-decoration:none}
img{max-width:100%;display:block}
h1,h2,h3{line-height:1.18;letter-spacing:-.02em;color:var(--navy)}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.eyebrow{display:inline-block;font-size:.78rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-d)}
.btn{display:inline-flex;align-items:center;gap:.5em;font-weight:600;font-size:1rem;padding:.85em 1.5em;border-radius:999px;
  border:1px solid transparent;cursor:pointer;transition:transform .15s ease,box-shadow .2s ease,background .2s ease}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--accent);color:var(--navy);box-shadow:0 8px 20px -8px rgba(245,166,35,.7)}
.btn-primary:hover{background:var(--accent-d)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.35)}
.btn-ghost:hover{background:rgba(255,255,255,.1)}

/* top bar */
.topbar{background:var(--navy);color:#cdd9e1;font-size:.86rem}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;height:42px;gap:16px}
.topbar a{color:#e7eef3}
.lang a{opacity:.6;font-weight:600}
.lang a.on{opacity:1;color:var(--accent)}

/* header */
header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);
  backdrop-filter:saturate(160%) blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.28rem;color:var(--navy);letter-spacing:-.02em}
.logo .mark{width:34px;height:34px;flex:0 0 34px}
.logo b{color:var(--accent-d)}
.menu{display:flex;gap:30px;list-style:none;align-items:center}
.menu a{color:var(--ink);font-weight:500;font-size:.97rem;position:relative;padding:6px 0}
.menu a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--accent);transition:width .2s}
.menu a:hover::after,.menu a.active::after{width:100%}
.menu a.active{color:var(--navy);font-weight:700}
.nav-cta{display:flex;align-items:center;gap:14px}
.burger{display:none;background:none;border:0;cursor:pointer;width:44px;height:44px;color:var(--navy)}

/* sub-hero */
.subhero{background:linear-gradient(115deg,var(--navy),var(--navy-2));color:#fff;position:relative;overflow:hidden}
.subhero::after{content:"";position:absolute;right:-80px;top:-80px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(245,166,35,.22),transparent 70%)}
.subhero .wrap{position:relative;padding:54px 24px 60px}
.crumb{font-size:.85rem;color:#9fb4c1;margin-bottom:12px}
.crumb a{color:#cfe0ea}
.subhero h1{color:#fff;font-size:clamp(1.9rem,4vw,2.7rem);font-weight:800}
.subhero p{color:#cfe0ea;max-width:60ch;margin-top:12px;font-size:1.08rem}

/* anchor sub-nav */
.subnav{position:sticky;top:72px;z-index:40;background:#fff;border-bottom:1px solid var(--line)}
.subnav .wrap{display:flex;gap:6px;overflow-x:auto;padding:0 24px}
.subnav a{white-space:nowrap;padding:15px 16px;font-weight:600;font-size:.93rem;color:var(--muted);border-bottom:2px solid transparent}
.subnav a:hover{color:var(--navy)}
.subnav a.on{color:var(--navy);border-bottom-color:var(--accent)}

/* detail sections */
.detail{padding:60px 0;border-bottom:1px solid var(--line);scroll-margin-top:130px}
.detail:last-of-type{border-bottom:0}
.detail .grid{display:grid;grid-template-columns:1fr 360px;gap:46px;align-items:start}
.detail .num{font-size:.82rem;font-weight:700;letter-spacing:.12em;color:var(--accent-d);text-transform:uppercase}
.detail h2{font-size:clamp(1.5rem,3vw,2.1rem);margin:8px 0 16px}
.detail .lead{font-size:1.12rem;color:var(--ink)}
.detail p{color:var(--muted);margin:12px 0}
.detail p.lead{color:var(--ink)}
.facts{margin-top:22px;display:grid;gap:14px}
.fact{background:#fff;border:1px solid var(--line);border-radius:13px;padding:16px 18px;box-shadow:var(--shadow)}
.fact b{display:block;color:var(--navy);font-size:.82rem;text-transform:uppercase;letter-spacing:.06em;margin-bottom:6px}
.fact ul{margin:0;padding-left:18px;color:var(--muted)}
.fact ul li{margin:5px 0}
.fact p{margin:0;color:var(--muted)}
.aside-card{background:linear-gradient(160deg,var(--navy),var(--navy-2));color:#fff;border-radius:18px;padding:26px;
  box-shadow:var(--shadow-lg);position:sticky;top:140px}
.aside-card h3{color:#fff;font-size:1.15rem;margin-bottom:8px}
.aside-card p{color:#c4d3dd;font-size:.94rem;margin-bottom:16px}
.aside-card .tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.aside-card .tags span{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);padding:5px 11px;border-radius:8px;font-size:.82rem;font-weight:600}
.aside-card .btn{width:100%;justify-content:center}
.bullets{list-style:none;margin:16px 0}
.bullets li{position:relative;padding-left:30px;margin:10px 0;color:var(--ink)}
.bullets li::before{content:"";position:absolute;left:0;top:9px;width:14px;height:14px;border-radius:4px;
  background:var(--accent);box-shadow:0 0 0 4px rgba(245,166,35,.18)}

/* CTA band */
.cta-band{background:var(--navy);color:#fff;text-align:center;padding:62px 24px}
.cta-band h2{color:#fff;font-size:clamp(1.6rem,3vw,2.2rem)}
.cta-band p{color:#b9c8d3;max-width:52ch;margin:12px auto 26px}

/* footer */
footer{background:#081826;color:#9fb1bd;padding:48px 0 28px;font-size:.92rem}
.foot-grid{display:flex;justify-content:space-between;flex-wrap:wrap;gap:30px;padding-bottom:28px;border-bottom:1px solid rgba(255,255,255,.08)}
footer .logo{color:#fff}
footer h4{color:#fff;font-size:.95rem;margin-bottom:12px}
footer ul{list-style:none}
footer ul li{margin-bottom:7px}
footer a{color:#9fb1bd}
footer a:hover{color:var(--accent)}
.foot-bot{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;padding-top:20px;font-size:.85rem;color:#6f828f}
.demo-flag{background:var(--accent);color:var(--navy);font-weight:700;font-size:.78rem;padding:3px 10px;border-radius:999px}

@media(max-width:860px){
  .detail .grid{grid-template-columns:1fr;gap:24px}
  .aside-card{position:static}
  .menu,.nav-cta .btn{display:none}
  .burger{display:grid;place-items:center}
  .menu.open{display:flex;position:absolute;top:72px;left:0;right:0;flex-direction:column;background:#fff;
    padding:18px 24px;gap:16px;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
}
@media(max-width:600px){body{font-size:16px}.detail{padding:44px 0}}

/* method banner photo */
.method-photo{width:100%;height:300px;object-fit:cover;border-radius:14px;border:1px solid var(--line);
  box-shadow:var(--shadow);margin-bottom:22px}

/* gallery grid */
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px}
.gallery button{padding:0;border:1px solid var(--line);background:#e9eef2;border-radius:12px;overflow:hidden;
  cursor:pointer;aspect-ratio:4/3;box-shadow:var(--shadow);display:block}
.gallery img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.gallery button:hover img{transform:scale(1.07)}

/* certificate grid (portrait) */
.cert-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:18px}
.cert-grid figure{background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px;box-shadow:var(--shadow)}
.cert-grid button{padding:0;border:0;background:none;cursor:pointer;width:100%;display:block}
.cert-grid img{width:100%;height:240px;object-fit:contain;border-radius:6px;background:#f1f4f6}
.cert-grid figcaption{font-size:.82rem;color:var(--muted);margin-top:10px;text-align:center}

/* lightbox */
.lb{position:fixed;inset:0;background:rgba(8,18,28,.93);z-index:300;display:none;align-items:center;justify-content:center;padding:30px}
.lb.open{display:flex}
.lb img{max-width:94vw;max-height:88vh;border-radius:8px;box-shadow:0 30px 80px -20px rgba(0,0,0,.8)}
.lb .lb-btn{position:fixed;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);color:#fff;
  width:50px;height:50px;border-radius:50%;font-size:1.4rem;cursor:pointer;display:grid;place-items:center;transition:background .2s}
.lb .lb-btn:hover{background:rgba(255,255,255,.25)}
.lb .lb-x{top:22px;right:26px}
.lb .lb-prev{left:24px;top:50%;transform:translateY(-50%)}
.lb .lb-next{right:24px;top:50%;transform:translateY(-50%)}
@media(max-width:600px){.method-photo{height:220px}.lb .lb-prev{left:10px}.lb .lb-next{right:10px}}