/* ============================================================
   Safety tech — Návrh A "Strukturovaný / světlý"
   Námořnická modř · střídmý akcent · technická mřížka
   ============================================================ */

:root{
  --navy:        #0c2143;
  --navy-2:      #14365f;
  --navy-3:      #1d4a7e;
  --ink:         #0a1626;
  --body:        #3a4858;
  --muted:       #6b7888;
  --line:        #e3e8ef;
  --line-2:      #d2dae4;
  --bg:          #ffffff;
  --bg-2:        #f3f6fa;
  --bg-3:        #eaeff5;
  --accent:      #c08a2b;   /* safety amber */
  --accent-d:    #a06f1c;
  --accent-soft: #f7efe0;
  --maxw:        1200px;
  --r:           4px;
  --sans:        "Helvetica Neue", Helvetica, Arial, "Segoe UI", sans-serif;
  --mono:        "Helvetica Neue", Helvetica, Arial, "Segoe UI", sans-serif;
}

*{ box-sizing:border-box; margin:0; padding:0; }
html{ scroll-behavior:smooth; }
body{
  font-family:var(--sans);
  color:var(--body);
  background:var(--bg);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{ display:block; max-width:100%; }
a{ color:inherit; text-decoration:none; }

.wrap{ max-width:var(--maxw); margin:0 auto; padding:0 32px; }

/* ---------- Typography ---------- */
h1,h2,h3,h4{ color:var(--ink); font-weight:700; letter-spacing:-0.01em; line-height:1.12; }
h1{ font-size:clamp(34px,4.6vw,60px); letter-spacing:-0.025em; }
h2{ font-size:clamp(26px,3vw,40px); letter-spacing:-0.02em; }
h3{ font-size:20px; }
p{ text-wrap:pretty; }

.kicker{
  font-family:var(--mono);
  font-size:12.5px;
  letter-spacing:0.18em;
  text-transform:uppercase;
  color:var(--accent-d);
  font-weight:500;
}
.kicker.on-navy{ color:#e9b85a; }
.lead{ font-size:clamp(16px,1.5vw,18.5px); color:var(--body); }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:10px;
  font-family:var(--sans); font-size:15px; font-weight:600;
  padding:14px 24px; border-radius:var(--r); border:1px solid transparent;
  cursor:pointer; transition:.18s ease; white-space:nowrap;
}
.btn .ic{ width:17px; height:17px; }
.btn-primary{ background:var(--navy); color:#fff; }
.btn-primary:hover{ background:var(--navy-2); transform:translateY(-1px); }
.btn-accent{ background:var(--accent); color:#1a1303; }
.btn-accent:hover{ background:var(--accent-d); color:#fff; transform:translateY(-1px); }
.btn-ghost{ background:transparent; color:var(--ink); border-color:var(--line-2); }
.btn-ghost:hover{ border-color:var(--navy); background:var(--bg-2); }
.btn-ghost.on-navy{ color:#fff; border-color:rgba(255,255,255,.28); }
.btn-ghost.on-navy:hover{ border-color:#fff; background:rgba(255,255,255,.06); }
.btn-outline{ background:transparent; color:var(--navy); border-color:var(--navy); }
.btn-outline:hover{ background:var(--navy); color:#fff; transform:translateY(-1px); }

.txtlink{
  display:inline-flex; align-items:center; gap:8px;
  font-weight:600; color:var(--navy-2); font-size:15px;
  transition:.16s;
}
.txtlink .ar{ transition:transform .18s; }
.txtlink:hover{ color:var(--accent-d); }
.txtlink:hover .ar{ transform:translateX(4px); }

/* ---------- Header ---------- */
.hdr{
  position:sticky; top:0; z-index:50;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.hdr-in{ display:flex; align-items:center; gap:28px; height:72px; }
.brand{ display:flex; align-items:center; gap:12px; }
.brand img{ height:50px; width:auto; }
.brand .bt{ font-weight:700; color:var(--ink); font-size:17px; letter-spacing:-0.01em; }
.brand .bt small{ display:block; font-family:var(--mono); font-size:10px; letter-spacing:.14em; color:var(--muted); font-weight:400; }
.nav{ display:flex; gap:26px; margin-left:auto; }
.nav a{ font-size:15px; font-weight:500; color:var(--body); transition:.15s; }
.nav a:hover{ color:var(--navy); }
.hdr .btn{ padding:11px 18px; }
.menu-btn{ display:none; background:none; border:1px solid var(--line-2); border-radius:var(--r); padding:8px 10px; cursor:pointer; }
.menu-btn span{ display:block; width:20px; height:2px; background:var(--ink); margin:4px 0; }

/* ---------- Hero ---------- */
.hero{ background:linear-gradient(180deg,#f4f7fb 0%, #ffffff 68%); border-bottom:1px solid var(--line); position:relative; overflow:hidden; }
.hero::before{
  content:""; position:absolute; inset:0; pointer-events:none; z-index:0;
  background-image:
    linear-gradient(rgba(12,33,67,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(12,33,67,.05) 1px, transparent 1px);
  background-size:40px 40px;
  -webkit-mask-image:radial-gradient(ellipse 72% 82% at 72% 22%, #000 0%, transparent 76%);
          mask-image:radial-gradient(ellipse 72% 82% at 72% 22%, #000 0%, transparent 76%);
}
.hero .wrap{ position:relative; z-index:1; }
.hero-grid{
  display:grid; grid-template-columns:1.05fr .95fr; gap:56px; align-items:center;
  padding-top:84px; padding-bottom:90px;
}
.hero h1{ margin:18px 0 22px; }
.hero .lead{ max-width:30em; }
.hero-cta{ display:flex; gap:14px; flex-wrap:wrap; margin-top:32px; }
.hero-meta{ display:flex; gap:30px; margin-top:40px; padding-top:28px; border-top:1px solid var(--line); }
.hero-meta .m b{ display:block; color:var(--ink); font-size:22px; font-weight:700; }
.hero-meta .m span{ font-size:13px; color:var(--muted); }
.hero-visual{ position:relative; }
.hero-img{ width:100%; aspect-ratio:4/4.4; object-fit:cover; border-radius:var(--r); border:1px solid var(--line-2); display:block; }

/* ---------- Placeholder image ---------- */
.ph{
  position:relative; border-radius:var(--r); overflow:hidden;
  background:
    repeating-linear-gradient(135deg, var(--bg-3) 0 14px, var(--bg-2) 14px 28px);
  border:1px solid var(--line-2);
  display:flex; align-items:center; justify-content:center; min-height:120px;
}
.ph::after{
  content:attr(data-label);
  font-family:var(--mono); font-size:11px; letter-spacing:.14em; text-transform:uppercase;
  color:var(--muted); background:rgba(255,255,255,.82); padding:6px 12px; border-radius:3px;
  border:1px solid var(--line-2);
}
.ph.dark{ background:repeating-linear-gradient(135deg,#0f2848 0 14px,#0c2143 14px 28px); border-color:#1d4a7e; }
.ph.dark::after{ color:#9db4d0; background:rgba(8,22,44,.7); border-color:#1d4a7e; }
.hero-visual .ph{ aspect-ratio:4/4.4; }

/* ---------- Section frame ---------- */
section{ padding:88px 0; }
.sec-head{ max-width:640px; margin-bottom:48px; }
.sec-head h2{ margin:14px 0 12px; }

/* ---------- Trust strip ---------- */
.strip{ background:var(--navy); color:#cdd9e8; padding:0; }
.strip-in{ display:flex; flex-wrap:wrap; align-items:center; justify-content:center; gap:14px 40px; padding:22px 0; }
.strip-in .it{ display:flex; align-items:center; gap:10px; font-size:14.5px; font-weight:500; }
.strip-in .dot{ width:7px; height:7px; border-radius:50%; background:var(--accent); }

/* ---------- Services ---------- */
.svc-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.svc{
  background:var(--bg); border:1px solid var(--line); border-radius:var(--r);
  padding:34px 30px 30px; display:flex; flex-direction:column;
  transition:.2s ease; position:relative;
}
.svc:hover{ border-color:var(--navy-3); box-shadow:0 18px 40px -24px rgba(12,33,67,.4); transform:translateY(-3px); }
.svc .num{ font-family:var(--mono); font-size:13px; color:var(--accent-d); letter-spacing:.1em; }
.svc .ico{ width:46px; height:46px; margin:0 0 20px; color:var(--navy-2); }
.svc h3{ font-size:22px; margin-bottom:12px; }
.svc p{ font-size:15px; color:var(--body); margin-bottom:22px; }
.svc .txtlink{ margin-top:auto; }
.svc ul{ list-style:none; margin:0 0 22px; }
.svc ul li{ font-size:14px; color:var(--muted); padding:6px 0 6px 20px; position:relative; border-top:1px solid var(--line); }
.svc ul li:first-child{ border-top:none; }
.svc ul li::before{ content:""; position:absolute; left:2px; top:13px; width:8px; height:8px; border-right:2px solid var(--accent); border-bottom:2px solid var(--accent); transform:rotate(45deg); }

/* ---------- Process ---------- */
.proc{ background:var(--bg-2); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
.steps{ display:grid; grid-template-columns:repeat(5,1fr); gap:0; counter-reset:s; }
.step{ padding:0 22px; position:relative; }
.step:not(:last-child)::after{ content:""; position:absolute; top:21px; right:-1px; left:calc(50% + 26px); height:2px; background:var(--line-2); }
.step .n{
  width:44px; height:44px; border-radius:50%; background:var(--navy); color:#fff;
  display:flex; align-items:center; justify-content:center; font-weight:700; font-size:17px;
  position:relative; z-index:1;
}
.step h4{ font-size:16.5px; margin:18px 0 8px; }
.step p{ font-size:14px; color:var(--muted); }

/* ---------- References ---------- */
.ref-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
.ref{ }
.ref .ph{ aspect-ratio:4/3; margin-bottom:14px; }
.ref .tag{ font-family:var(--mono); font-size:11px; letter-spacing:.12em; text-transform:uppercase; color:var(--accent-d); }
.ref h4{ font-size:17px; margin:6px 0 4px; }
.ref p{ font-size:14px; color:var(--muted); }

/* ---------- Coverage ---------- */
.cover{ background:var(--navy); color:#cdd9e8; }
.cover h2{ color:#fff; }
.cover .lead{ color:#aebfd4; }
.cover-grid{ display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center; }
.towns{ display:flex; flex-wrap:wrap; gap:10px; margin-top:26px; }
.towns span{ font-size:14px; padding:7px 14px; border:1px solid rgba(255,255,255,.18); border-radius:var(--r); color:#cdd9e8; }
.towns span.home{ background:var(--accent); color:#1a1303; border-color:var(--accent); font-weight:600; }
.cover .map{ aspect-ratio:4/3.2; }
.map-frame{ border-radius:var(--r); overflow:hidden; border:1px solid rgba(255,255,255,.16); box-shadow:0 24px 50px -30px rgba(0,0,0,.6); }
.map-frame iframe{ width:100%; aspect-ratio:4/3.2; border:0; display:block; filter:saturate(.92); }
/* Leaflet (rastrová mapa, bez WebGL) */
.lmap{ width:100%; aspect-ratio:4/3.2; display:block; background:var(--navy); }
.lmap .leaflet-tile-pane{ filter:saturate(.92); }
.lmap .leaflet-container{ background:var(--navy); }
.map-note{ margin-top:12px; font-size:13px; color:#8aa3c2; }
.map-note a{ color:#cdd9e8; text-decoration:underline; }
.map-note a:hover{ color:#fff; }

/* ---------- Contact ---------- */
.contact{ background:var(--bg-2); border-top:1px solid var(--line); }
.contact-grid{ display:grid; grid-template-columns:1fr 1fr; gap:24px; margin-bottom:24px; }
.pcard{
  background:#fff; border:1px solid var(--line); border-radius:var(--r); padding:30px;
  display:flex; flex-direction:column; gap:6px;
}
.pcard .role{ font-family:var(--mono); font-size:11.5px; letter-spacing:.12em; text-transform:uppercase; color:var(--accent-d); }
.pcard-head{ display:flex; align-items:center; gap:18px; margin-bottom:20px; }
.pcard-head .txt{ display:flex; flex-direction:column; gap:3px; }
.pcard-head .nm{ margin:0; }
.pcard-head .sub{ margin:0; }
.avatar{
  width:88px; height:88px; flex:none; border-radius:50%; overflow:hidden;
  border:1px solid var(--line-2);
  background:repeating-linear-gradient(135deg, var(--bg-3) 0 9px, var(--bg-2) 9px 18px);
  display:flex; align-items:center; justify-content:center; color:var(--muted);
}
.avatar svg{ width:40px; height:40px; }
.avatar img{ width:100%; height:100%; object-fit:cover; object-position:center 18%; }
.pcard .nm{ font-size:22px; font-weight:700; color:var(--ink); margin:4px 0 2px; }
.pcard .sub{ font-size:14px; color:var(--muted); margin-bottom:16px; }
.pcard .row{ display:flex; align-items:center; gap:11px; font-size:15px; padding:9px 0; border-top:1px solid var(--line); }
.pcard .row .ic{ width:17px; height:17px; color:var(--navy-2); flex:none; }
.pcard .row a{ font-weight:600; color:var(--navy-2); }
.pcard .row a:hover{ color:var(--accent-d); }
.company{
  background:#fff; border:1px solid var(--line); border-radius:var(--r); padding:30px;
  display:grid; grid-template-columns:repeat(3,1fr); gap:28px;
}
.company .blk h5{ font-family:var(--mono); font-size:11px; letter-spacing:.12em; text-transform:uppercase; color:var(--muted); font-weight:500; margin-bottom:10px; }
.company .blk p{ font-size:14.5px; color:var(--body); line-height:1.7; }

/* ---------- Licenses ---------- */
.licenses{ margin-top:24px; }
.lic-label{ font-family:var(--mono); font-size:11px; letter-spacing:.12em; text-transform:uppercase; color:var(--muted); font-weight:500; margin-bottom:14px; }
.lic-grid{ display:grid; grid-template-columns:1fr 1fr; gap:24px; }
.lic{ background:#fff; border:1px solid var(--line); border-radius:var(--r); padding:26px 30px; border-top:3px solid var(--navy); }
.lic .num{ font-family:var(--mono); font-size:11.5px; letter-spacing:.1em; text-transform:uppercase; color:var(--accent-d); }
.lic h4{ font-size:16.5px; color:var(--ink); margin:9px 0 16px; line-height:1.35; }
.lic dl{ display:grid; grid-template-columns:auto 1fr; gap:8px 18px; margin:0; }
.lic dt{ font-size:13px; color:var(--muted); }
.lic dd{ font-size:13.5px; color:var(--body); margin:0; }
@media (max-width:760px){ .lic-grid{ grid-template-columns:1fr; } }

/* ---------- Footer ---------- */
.ftr{ background:var(--ink); color:#9fb0c4; padding:54px 0 30px; }
.ftr-top{ display:flex; justify-content:space-between; gap:40px; flex-wrap:wrap; padding-bottom:30px; border-bottom:1px solid rgba(255,255,255,.1); }
.ftr-brand{ flex-direction:column; align-items:flex-start; gap:12px; }
.ftr-brand img{ height:44px; width:auto; filter:brightness(0) invert(1); }
.ftr-tag{ font-family:var(--mono); font-size:11px; letter-spacing:.16em; text-transform:uppercase; color:#7e90a6; }
.ftr .brand .bt{ color:#fff; }
.ftr .brand .bt small{ color:#7e90a6; }
.ftr-nav{ display:flex; gap:24px; flex-wrap:wrap; }
.ftr-nav a{ font-size:14px; color:#9fb0c4; }
.ftr-nav a:hover{ color:#fff; }
.ftr-bot{ display:flex; justify-content:space-between; gap:16px; flex-wrap:wrap; padding-top:22px; font-size:13px; color:#6f8197; }
.ftr-bot a{ color:#9fb0c4; text-decoration:none; }
.ftr-bot a:hover{ color:#fff; }

/* ---------- Subpage hero ---------- */
.sub-hero{ background:var(--navy); color:#cdd9e8; padding:64px 0 70px; border-bottom:4px solid var(--accent); }
.sub-hero .crumb{ font-family:var(--mono); font-size:12px; letter-spacing:.12em; text-transform:uppercase; color:#8aa3c2; margin-bottom:18px; }
.sub-hero .crumb a:hover{ color:#fff; }
.sub-hero h1{ color:#fff; max-width:14ch; }
.sub-hero .lead{ color:#aebfd4; max-width:46ch; margin-top:18px; }
.sub-hero-grid{ display:grid; grid-template-columns:1.1fr .9fr; gap:48px; align-items:center; }
.feat-grid{ display:grid; grid-template-columns:repeat(2,1fr); gap:22px; }
.sub-img{ width:100%; aspect-ratio:4/3.4; object-fit:cover; border-radius:var(--r); border:1px solid rgba(255,255,255,.14); display:block; }
.feat{ border:1px solid var(--line); border-radius:var(--r); padding:26px; background:#fff; }
.feat .ico{ width:38px; height:38px; color:var(--navy-2); margin-bottom:14px; }
.feat h3{ font-size:18px; margin-bottom:8px; }
.feat p{ font-size:14.5px; color:var(--body); }
.cta-band{ background:var(--bg-2); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
.cta-band .in{ display:flex; align-items:center; justify-content:space-between; gap:28px; flex-wrap:wrap; }
.cta-band h2{ font-size:30px; }

/* ---------- Responsive ---------- */
@media (max-width:980px){
  .hero-grid,.cover-grid,.sub-hero-grid{ grid-template-columns:1fr; gap:36px; }
  .hero-visual .ph{ aspect-ratio:16/10; }
  .svc-grid,.ref-grid{ grid-template-columns:1fr 1fr; }
  .steps{ grid-template-columns:1fr 1fr 1fr; gap:30px 0; }
  .step:not(:last-child)::after{ display:none; }
  .company{ grid-template-columns:1fr; gap:20px; }
}
@media (max-width:680px){
  .wrap{ padding:0 20px; }
  .menu-btn{ display:block; margin-left:auto; }
  .hdr .btn{ display:none; }
  .svc-grid,.ref-grid,.contact-grid,.feat-grid,.steps{ grid-template-columns:1fr; }
  .hero-grid{ padding-top:54px; padding-bottom:60px; }
  section{ padding:60px 0; }
  .hero-meta{ flex-wrap:wrap; gap:18px 28px; }
  .cta-band .in{ flex-direction:column; align-items:flex-start; }

  /* Mobile dropdown navigation */
  .nav{
    display:none;
    position:absolute; top:72px; left:0; right:0;
    flex-direction:column; gap:0; margin-left:0;
    background:rgba(255,255,255,.98);
    backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line);
    padding:6px 20px 14px;
    box-shadow:0 18px 40px -24px rgba(12,33,67,.45);
  }
  .nav.open{ display:flex; }
  .nav a{ font-size:16px; padding:13px 2px; border-top:1px solid var(--line); }
  .nav a:first-child{ border-top:none; }
  .menu-btn.open span:nth-child(1){ transform:translateY(6px) rotate(45deg); }
  .menu-btn.open span:nth-child(2){ opacity:0; }
  .menu-btn.open span:nth-child(3){ transform:translateY(-6px) rotate(-45deg); }
  .menu-btn span{ transition:.2s ease; }
}