/* Layout: barvy z loga — bílá hlavička s logem, tmavě modré pásy, azurový lesk a kartáčovaná ocel jako detail */
:root{
  --bg:#f4f6f9; --surface:#ffffff; --ink:#0d1726; --muted:#55627a; --line:#d6dde6;
  --navy:#0b213e; --navy-2:#123460; --blue:#0279e5; --azure:#19b6f0; --silver:#c3cbd3;
  --on-navy:#e8eef6; --on-navy-muted:#9db0c8; --note:#e6f2fd; --note-ink:#0b3c70;
  --f-display:"Saira","Arial Narrow",Arial,sans-serif;
  --f-body:"Instrument Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --f-mono:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#08111d; --surface:#0f1b2b; --ink:#e6edf6; --muted:#9aabc0; --line:#1f3048;
  --navy:#050c16; --navy-2:#0c1f38; --blue:#3a9bff; --azure:#3cc6f5; --silver:#8b96a3;
  --note:#0e2740; --note-ink:#bfe0ff; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#08111d; --surface:#0f1b2b; --ink:#e6edf6; --muted:#9aabc0; --line:#1f3048;
  --navy:#050c16; --navy-2:#0c1f38; --blue:#3a9bff; --azure:#3cc6f5; --silver:#8b96a3;
  --note:#0e2740; --note-ink:#bfe0ff; color-scheme:dark}
*{box-sizing:border-box}
body{background:var(--bg);color:var(--ink);font:400 16px/1.6 var(--f-body)}
.wrap{max-width:1140px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
h1,h2,h3{font-family:var(--f-display);font-weight:700;line-height:1.08;text-wrap:balance;margin:0;letter-spacing:.01em}
p,ul{margin:0}
a{color:var(--blue)}
a:focus-visible,button:focus-visible{outline:2px solid var(--azure);outline-offset:3px}
.label{font:500 12px/1.2 var(--f-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--blue)}
.ph{background:var(--note);color:var(--note-ink);padding:0 4px;border-radius:2px}
.steel{height:3px;background:linear-gradient(90deg,#7d868f,#eef1f4 30%,#9aa3ab 55%,#f4f6f8 75%,#868f98)}

.draft{background:var(--note);color:var(--note-ink);font-size:14px}
.draft .wrap{padding-block:9px}

/* hlavička */
.top{background:#ffffff;position:sticky;top:env(safe-area-inset-top,0px);z-index:5;box-shadow:0 1px 0 #d6dde6}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:10;background:#fff}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px 24px;padding-block:10px;flex-wrap:wrap}
.top img{height:54px;width:auto;display:block}
nav.main{display:flex;gap:4px;flex-wrap:wrap;align-items:center}
nav.main a,.sub a{font:600 15px/1 var(--f-display);text-transform:uppercase;letter-spacing:.06em;color:#0b213e;text-decoration:none;padding:10px 12px;display:block}
nav.main a:hover,nav.main a[aria-current="page"]{color:#0279e5}
nav.main a[aria-current="page"]{box-shadow:inset 0 -3px 0 #0279e5}
.dd{position:relative}
.sub{position:absolute;top:100%;left:0;background:#fff;border:1px solid #d6dde6;min-width:180px;display:none;box-shadow:0 8px 20px rgba(11,33,62,.12)}
.dd:hover .sub,.dd:focus-within .sub{display:block}
.sub a{font-size:14px;padding:12px 14px}
.sub a:hover{background:#eef4fb}
.lang{display:flex;gap:2px;font:500 12px/1 var(--f-mono)}
.lang span{padding:6px 7px;color:#8a97a8;border:1px solid transparent}
.lang span.on{color:#0b213e;border-color:#c3cbd3}

/* hero */
.hero{background:radial-gradient(120% 140% at 85% 0%,var(--navy-2) 0%,var(--navy) 60%);color:var(--on-navy);position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-8%;top:-30%;width:55%;height:160%;background:linear-gradient(115deg,transparent 40%,rgba(25,182,240,.16) 50%,transparent 60%);transform:skewX(-28deg);pointer-events:none}
.hero .wrap{position:relative;z-index:1;padding-block:56px 60px;display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:40px;align-items:end}
@media (max-width:820px){.hero .wrap{grid-template-columns:1fr}}
.hero h1{font-size:clamp(34px,5.4vw,60px);font-weight:800}
.hero h1 em{font-style:normal;color:var(--azure)}
.hero .label{color:var(--azure)}
.hero ul{list-style:none;padding:0;display:grid;gap:0;border-top:1px solid #2a4569}
.hero li{padding:13px 0;border-bottom:1px solid #2a4569;display:flex;gap:14px;align-items:baseline;font-size:17px}
.hero li::before{content:"";width:14px;height:3px;flex:none;transform:translateY(-4px);background:linear-gradient(90deg,#8d969f,#f1f3f5,#8d969f)}

.btn{display:inline-block;padding:13px 22px;font:600 15px/1 var(--f-display);text-transform:uppercase;letter-spacing:.06em;text-decoration:none;background:#0279e5;color:#fff;border:0;cursor:pointer}
.btn:hover{background:#0566c2}
.btn.line{background:transparent;color:var(--blue);box-shadow:inset 0 0 0 1.5px currentColor}

/* dlaždice */
.tiles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));margin-top:-1px}
@media (max-width:700px){.tiles{grid-template-columns:1fr}}
.tile{background:var(--surface);border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:28px 24px;display:grid;gap:8px;text-decoration:none;color:var(--ink);position:relative}
.tile:hover h3{color:var(--blue)}
.tile h3{font-size:26px;text-transform:uppercase;letter-spacing:.04em}
.tile p{color:var(--muted);font-size:15px}
.tile .go{font:500 12px/1 var(--f-mono);color:var(--blue);letter-spacing:.1em}

section{padding-block:64px}
.pagehead{background:var(--navy);color:var(--on-navy)}
.pagehead .wrap{padding-block:40px 36px;display:grid;gap:8px}
.crumb{font:400 13px/1 var(--f-mono);color:var(--on-navy-muted)}
.crumb a{color:var(--on-navy-muted)}
.pagehead h1{font-size:clamp(34px,5vw,52px);text-transform:uppercase;letter-spacing:.03em}

.intro{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.2fr);gap:48px}
@media (max-width:820px){.intro{grid-template-columns:1fr}}
.intro h2{font-size:clamp(28px,3.6vw,40px)}
.intro .lead{font-size:19px;line-height:1.5;color:var(--ink)}
.prose{display:grid;gap:16px;max-width:66ch;color:var(--muted)}
.prose strong{color:var(--ink)}
.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:0;border-top:2px solid var(--ink);margin-top:8px}
.facts div{padding:14px 12px 0 0;display:grid;gap:2px}
.facts b{font:700 30px/1 var(--f-display);font-variant-numeric:tabular-nums;justify-self:start}
.facts span{font:400 12px/1.3 var(--f-mono);color:var(--muted)}

.news{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px}
.post{background:var(--surface);border:1px solid var(--line);padding:22px;display:grid;gap:10px;align-content:start}
.post time{font:500 13px/1 var(--f-mono);color:var(--blue)}
.post h3{font-size:21px}
.post p{color:var(--muted);font-size:15px}
.sechead{display:flex;justify-content:space-between;align-items:end;gap:16px;flex-wrap:wrap;margin-bottom:28px}
.sechead h2{font-size:clamp(28px,3.6vw,40px)}

.refs{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px}
.ref{background:var(--surface);border:1px solid var(--line);display:grid;text-decoration:none;color:var(--ink)}
.ref .img{aspect-ratio:4/3;max-width:100%;background:linear-gradient(135deg,#0b213e,#1a4f8a 55%,#0b213e);position:relative;overflow:hidden;display:grid;place-items:center}
.ref .img::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(90deg,rgba(255,255,255,.05) 0 1px,transparent 1px 3px)}
.ref .img span{font:500 11px/1 var(--f-mono);letter-spacing:.12em;color:#9db0c8;position:relative;z-index:1}
.ref .body{padding:16px 18px;display:flex;justify-content:space-between;align-items:center;gap:8px}
.ref h3{font-size:20px;text-transform:uppercase;letter-spacing:.04em}
.ref .more{font:500 12px/1 var(--f-mono);color:var(--blue);white-space:nowrap}
.ref:hover h3{color:var(--blue)}

.tech{display:grid;gap:0;border-top:2px solid var(--ink)}
.tech article{display:grid;grid-template-columns:220px minmax(0,1fr);gap:24px;padding:28px 0;border-bottom:1px solid var(--line)}
@media (max-width:700px){.tech article{grid-template-columns:1fr;gap:10px}}
.tech h2{font-size:28px;text-transform:uppercase;letter-spacing:.04em}
.tech .prose a{font:500 13px/1 var(--f-mono)}
.tech ul{padding-left:18px;display:grid;gap:4px}
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:10px;margin-top:20px}
.gallery div{aspect-ratio:1;max-width:100%;background:linear-gradient(135deg,#0b213e,#1a4f8a);display:grid;place-items:center;font:500 11px/1 var(--f-mono);color:#9db0c8;letter-spacing:.1em}

.docs{display:grid;gap:0;border-top:2px solid var(--ink);max-width:760px}
.doc{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:16px 0;border-bottom:1px solid var(--line);flex-wrap:wrap}
.doc b{font-weight:600}
.doc span{font:500 12px/1 var(--f-mono);color:var(--muted)}

.contact{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.3fr);gap:48px}
@media (max-width:820px){.contact{grid-template-columns:1fr}}
.card{background:var(--surface);border:1px solid var(--line);padding:24px;display:grid;gap:12px;align-content:start}
.card dl{display:grid;grid-template-columns:auto 1fr;gap:6px 16px;margin:0}
.card dt{font:500 12px/1.6 var(--f-mono);color:var(--muted);text-transform:uppercase;letter-spacing:.08em}
.card dd{margin:0}
.people{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px}
.person{background:var(--surface);border:1px solid var(--line);padding:16px 18px;display:grid;gap:4px}
.person .role{font:500 12px/1.3 var(--f-mono);color:var(--blue);text-transform:uppercase;letter-spacing:.08em}
.person b{font-family:var(--f-display);font-size:18px}
.person span{color:var(--muted);font-size:14px}
form{display:grid;gap:14px}
.row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width:600px){.row{grid-template-columns:1fr}}
label{display:grid;gap:6px;font:500 12px/1 var(--f-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
input,textarea{font:400 16px/1.4 var(--f-body);padding:12px;background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:0;width:100%}
input:focus,textarea:focus{outline:2px solid var(--blue);outline-offset:-1px}
textarea{min-height:130px;resize:vertical}
.ok{color:var(--blue);font-size:14px}

footer{background:var(--navy);color:var(--on-navy-muted);font:400 13px/1.5 var(--f-mono)}
footer .wrap{padding-block:22px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
footer a{color:var(--on-navy)}

.lang a{padding:6px 7px;color:#8a97a8;border:1px solid transparent;text-decoration:none}
.lang a:hover{color:#0b213e}
.lang a[aria-current]{color:#0b213e;border-color:#c3cbd3}
[data-sec]{scroll-margin-top:84px}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
.sectionhead{background:var(--navy);color:var(--on-navy)}
.sectionhead .wrap{padding-block:36px 32px;display:grid;gap:6px}
.sectionhead .label{color:var(--azure)}
.sectionhead h2{font-size:clamp(32px,4.6vw,48px);text-transform:uppercase;letter-spacing:.03em}
[hidden]{display:none!important}
.ref .img::after{display:none}
.ref{cursor:pointer;padding:0;font:inherit;text-align:left;width:100%}
.ref .img{background:var(--navy)}
.ref .img img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .4s}
.ref:hover .img img{transform:scale(1.04)}
.ref:focus-visible{outline:2px solid var(--blue);outline-offset:3px}
.lb{position:fixed;inset:0;z-index:50;background:rgba(5,12,22,.94);display:grid;grid-template-rows:auto 1fr auto;padding:max(12px,env(safe-area-inset-top,0px)) max(12px,env(safe-area-inset-right,0px)) max(12px,env(safe-area-inset-bottom,0px)) max(12px,env(safe-area-inset-left,0px));color:#e8eef6}
.lb-top{display:flex;justify-content:space-between;align-items:center;gap:12px;font:500 13px/1 var(--f-mono);letter-spacing:.08em}
.lb-top b{font:700 20px/1.2 var(--f-display);letter-spacing:.04em;text-transform:uppercase}
.lb-stage{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:8px;min-height:0}
.lb-stage img{max-width:100%;max-height:calc(100vh - 140px);margin:auto;display:block;object-fit:contain}
.lb button{background:transparent;color:#e8eef6;border:1px solid #3a4f6b;font:600 14px/1 var(--f-display);text-transform:uppercase;letter-spacing:.06em;padding:12px 14px;cursor:pointer}
.lb button:hover{border-color:#19b6f0;color:#19b6f0}
.lb .nav{font-size:22px;padding:14px 16px}
@media (max-width:700px){.lb .nav{position:absolute;bottom:max(16px,env(safe-area-inset-bottom,0px))}.lb .prev{left:16px}.lb .next{right:16px}.lb-stage{grid-template-columns:1fr}}
#refs-grid{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
@media (max-width:700px){.top img{height:44px}.top{position:static}[data-sec]{scroll-margin-top:0}#refs-grid{grid-template-columns:1fr}}