@font-face{font-family:"Jakarta";src:url(fonts/PlusJakartaSans-Regular.woff2) format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"Jakarta";src:url(fonts/PlusJakartaSans-Medium.woff2) format("woff2");font-weight:500;font-display:swap}
@font-face{font-family:"Jakarta";src:url(fonts/PlusJakartaSans-SemiBold.woff2) format("woff2");font-weight:600;font-display:swap}
@font-face{font-family:"Jakarta";src:url(fonts/PlusJakartaSans-Bold.woff2) format("woff2");font-weight:700;font-display:swap}
@font-face{font-family:"Jakarta";src:url(fonts/PlusJakartaSans-ExtraBold.woff2) format("woff2");font-weight:800;font-display:swap}

:root{
  --bg:#07090d; --bg2:#0d1118; --line:#1c2230; --ti:#e8ecf3; --mut:#8e97a8; --cy:#22e4f5; --cy2:#0ea5b7;
  --r:14px; --w:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ti);font:400 17px/1.6 "Jakarta",system-ui,sans-serif;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3{font-weight:800;letter-spacing:-.02em;line-height:1.08;margin:0 0 .5em}
h1{font-size:clamp(42px,7vw,96px)}
h2{font-size:clamp(30px,4.2vw,54px);max-width:18ch}
h3{font-size:20px;letter-spacing:-.01em}
p{margin:0 0 1em}
.wrap{max-width:var(--w);margin:0 auto;padding:0 24px}
.kicker{font-size:13px;letter-spacing:.18em;text-transform:uppercase;color:var(--cy);font-weight:700}
.lead{font-size:clamp(17px,1.6vw,21px);color:#c7cfdc}
.narrow{max-width:62ch}
.cy{color:var(--cy)}
.note{font-size:14px;color:var(--mut);max-width:70ch}
.small{font-size:13px;color:var(--mut)}

/* header */
.top{position:fixed;inset:0 0 auto;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 24px;background:rgba(7,9,13,.72);backdrop-filter:blur(14px);border-bottom:1px solid rgba(255,255,255,.06)}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-weight:800;letter-spacing:.14em;font-size:14px}
.logo{width:40px;height:25px;color:var(--ti)}
.nav{display:flex;gap:26px;align-items:center;font-size:14px;font-weight:600}
.nav a{text-decoration:none;color:#c3cad6}
.nav a:hover{color:#fff}
.cta-sm{border:1px solid var(--cy);color:var(--cy)!important;padding:7px 14px;border-radius:999px}
.menu{display:none;background:none;border:0;color:#fff;font-size:24px;cursor:pointer}
.mnav{position:fixed;top:58px;inset-inline:0;z-index:19;background:var(--bg2);display:grid;padding:12px 24px;border-bottom:1px solid var(--line)}
.mnav[hidden]{display:none}
.mnav a{padding:12px 0;text-decoration:none;font-weight:600;border-bottom:1px solid var(--line)}
@media (max-width:860px){.nav{display:none}.menu{display:block}}

/* hero */
.hero{position:relative;min-height:100svh;display:flex;align-items:flex-end;overflow:hidden}
.hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:60% 55%;transform:scale(1.04);animation:slow 18s ease-out forwards}
@keyframes slow{to{transform:scale(1)}}
.hero-shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,9,13,.92) 0%,rgba(7,9,13,.55) 45%,rgba(7,9,13,.05) 75%),linear-gradient(0deg,var(--bg) 0%,transparent 35%)}
.hero-txt{position:relative;max-width:var(--w);width:100%;margin:0 auto;padding:0 24px 12vh}
.hero-txt .lead{max-width:52ch}
.cline{position:absolute;left:0;bottom:0;height:2px;width:100%;background:linear-gradient(90deg,transparent,var(--cy),transparent);box-shadow:0 0 18px var(--cy);transform-origin:left;animation:draw 2.4s .4s ease-out both}
@keyframes draw{from{transform:scaleX(0)}}
.row{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
.btn{display:inline-block;background:var(--cy);color:#031015;text-decoration:none;font-weight:800;padding:14px 24px;border-radius:999px;transition:transform .2s,box-shadow .2s}
.btn:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(34,228,245,.3)}
.btn.ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.35)}

/* sections */
.sec{padding:120px 0}
.sec.alt{background:var(--bg2);border-block:1px solid var(--line)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;margin:44px 0 18px}
.stats div{background:var(--bg);padding:28px 22px}
.stats b{display:block;font-size:clamp(26px,3vw,40px);font-weight:800;color:#fff;letter-spacing:-.02em}
.stats span{font-size:14px;color:var(--mut)}
.stats em{font-style:normal;color:var(--cy2)}
@media (max-width:860px){.stats{grid-template-columns:repeat(2,1fr)}}
.duo,.drawings{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:40px}
@media (max-width:860px){.duo,.drawings{grid-template-columns:1fr}}
figure{margin:0}
figure img{border-radius:var(--r);width:100%}
figcaption{font-size:13px;color:var(--mut);margin-top:10px}
.wide{margin-top:40px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
@media (max-width:960px){.split{grid-template-columns:1fr}}
.ticks{list-style:none;padding:0;margin:20px 0 0}
.ticks li{padding:10px 0 10px 28px;border-top:1px solid var(--line);position:relative;color:#d2d8e2}
.ticks li::before{content:"";position:absolute;left:4px;top:19px;width:10px;height:2px;background:var(--cy)}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:56px}
.cards article{background:var(--bg);border:1px solid var(--line);border-radius:var(--r);padding:24px}
.cards p{font-size:15px;color:#b8c0cd;margin:0}
@media (max-width:1000px){.cards{grid-template-columns:1fr 1fr}}
@media (max-width:600px){.cards{grid-template-columns:1fr}}

/* viewer */
.viewer{display:grid;grid-template-columns:1fr 300px;gap:0;margin-top:40px;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:radial-gradient(circle at 40% 40%,#121826,#07090d)}
.v3d{height:540px;cursor:grab;touch-action:none}
.v3d:active{cursor:grabbing}
.vpanel{border-left:1px solid var(--line);padding:20px;display:flex;flex-direction:column;gap:16px;background:rgba(13,17,24,.85)}
.vstats{font-size:14px;color:#c7cfdc;line-height:1.7}
.vstats b{color:#fff}
.vgroups{display:grid;gap:6px}
.vgroups button{display:flex;align-items:center;gap:10px;background:transparent;border:1px solid var(--line);color:#d6dbe6;border-radius:8px;padding:7px 10px;font:600 13px "Jakarta";cursor:pointer;text-align:left}
.vgroups button i{width:12px;height:12px;border-radius:3px;flex:none}
.vgroups button.off{opacity:.35}
.vgroups button span{margin-left:auto;color:var(--mut);font-weight:500}
.vinfo{font-size:13px;color:var(--mut);min-height:90px;border-top:1px solid var(--line);padding-top:12px}
.vinfo b{color:#fff;display:block;margin-bottom:4px;font-size:14px}
@media (max-width:900px){.viewer{grid-template-columns:1fr}.vpanel{border-left:0;border-top:1px solid var(--line)}.v3d{height:380px}}
.steps{counter-reset:s;list-style:none;padding:0;margin:48px 0 0;display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px}
.steps li{counter-increment:s;border:1px solid var(--line);border-radius:10px;padding:14px 16px 14px 52px;position:relative;font-size:15px;color:#c3cad6}
.steps li::before{content:counter(s,decimal-leading-zero);position:absolute;left:16px;top:14px;font-weight:800;color:var(--cy)}
.steps b{color:#fff}

/* band */
.band{position:relative;height:80vh;min-height:460px;overflow:hidden;display:flex;align-items:flex-end}
.band img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.band::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(7,9,13,.92),transparent 60%)}
.band-txt{position:relative;z-index:1;max-width:var(--w);margin:0 auto;padding:0 24px 64px;width:100%}

/* timeline */
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:40px}
.timeline div{border-top:2px solid var(--cy);padding-top:18px}
.timeline span{font-size:13px;color:var(--cy);font-weight:700;letter-spacing:.08em}
.timeline p{font-size:15px;color:#b8c0cd}
@media (max-width:860px){.timeline{grid-template-columns:1fr 1fr}}
.link{color:var(--cy);font-weight:700;text-decoration:none}
.contact{text-align:left}
.foot{border-top:1px solid var(--line);padding:40px 0 60px;color:#c3cad6;font-size:14px}

/* ---- interactiv ---- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s ease,transform .8s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}
.hero-img{transition:transform .25s linear}
.hotwrap{position:relative;margin-top:40px;border-radius:var(--r);overflow:hidden;background:#000}
.hotwrap img{width:100%;border-radius:0}
.hs{position:absolute;transform:translate(-50%,-50%);width:34px;height:34px;border-radius:50%;border:2px solid var(--cy);background:rgba(7,9,13,.75);color:#fff;font:800 13px "Jakarta";cursor:pointer;box-shadow:0 0 0 0 rgba(34,228,245,.6);animation:pulse 2.4s infinite}
.hs:hover,.hs.on{background:var(--cy);color:#031015}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(34,228,245,.55)}70%{box-shadow:0 0 0 16px rgba(34,228,245,0)}100%{box-shadow:0 0 0 0 rgba(34,228,245,0)}}
.hcard{position:absolute;left:20px;bottom:20px;max-width:360px;background:rgba(10,13,19,.92);border:1px solid var(--cy);border-radius:12px;padding:14px 16px;backdrop-filter:blur(8px)}
.hcard b{display:block;color:var(--cy);margin-bottom:4px}
.hcard p{margin:0;font-size:14px;color:#d2d8e2}
.zoom{cursor:zoom-in;transition:transform .5s}
figure:hover .zoom{transform:scale(1.015)}
.lb{position:fixed;inset:0;z-index:50;background:rgba(3,4,6,.94);display:flex;align-items:center;justify-content:center;padding:24px;cursor:zoom-out}
.lb img{max-height:92vh;max-width:96vw;border-radius:10px}
.lb[hidden]{display:none}
.calc,.zsim{margin-top:56px;border:1px solid var(--line);border-radius:var(--r);padding:28px;background:linear-gradient(160deg,#0f141d,#07090d)}
.presets,.zbtns{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0 20px}
.presets button,.zbtns button{background:transparent;border:1px solid var(--line);color:#d6dbe6;border-radius:999px;padding:8px 14px;font:600 13px "Jakarta";cursor:pointer}
.presets button:hover,.zbtns button:hover{border-color:var(--cy)}
.zbtns button.on,.presets button.on{background:var(--cy);color:#031015;border-color:var(--cy)}
.calc label{display:grid;grid-template-columns:1fr;gap:6px;margin:12px 0;font-size:14px;color:#c3cad6}
.calc output{color:#fff;font-weight:800}
.calc input[type=range]{width:100%;accent-color:var(--cy)}
.calc select{background:#0d1118;color:#fff;border:1px solid var(--line);border-radius:8px;padding:8px;font:500 14px "Jakarta";max-width:260px}
.cres{display:flex;align-items:baseline;gap:16px;margin:18px 0 8px;flex-wrap:wrap}
.cres b{font-size:clamp(44px,6vw,72px);font-weight:800;color:var(--cy);letter-spacing:-.03em}
.cres span{color:#c3cad6}
.zgrid{display:grid;grid-template-columns:1.3fr 1fr;gap:28px;align-items:center}
@media (max-width:860px){.zgrid{grid-template-columns:1fr}}
.zcar rect[data-z]{fill:#22d3ee;stroke:#22e4f5;stroke-width:2;transition:fill-opacity .5s}
.zl{fill:#fff;font:800 20px "Jakarta";text-anchor:middle}
.zs{fill:#8e97a8;font:600 11px "Jakarta"}
.fan{fill:#0e7490;stroke:#22e4f5;stroke-width:2;stroke-dasharray:6 4;transform-box:fill-box;transform-origin:center;animation:spin 1s linear infinite}
.fan.off{fill:#3b1d1d;stroke:#ef4444;animation:none}
@keyframes spin{to{transform:rotate(360deg)}}
.zread div{display:flex;justify-content:space-between;border-bottom:1px solid var(--line);padding:10px 0}
.zread span{color:var(--mut)}
.zread b{color:#fff;font-size:20px}
.zread p{margin-top:14px;font-size:15px;color:#c7cfdc;min-height:66px}
.vgrid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:28px}
.vgrid figure:first-child{grid-column:1/-1}
@media (max-width:760px){.vgrid{grid-template-columns:1fr}}
.vgrid figure{position:relative}
.vgrid video{width:100%;border-radius:12px;display:block;background:#000;aspect-ratio:16/9;object-fit:cover}
.vgrid figcaption{position:absolute;left:18px;bottom:16px;margin:0;color:#fff;font-weight:800;font-size:18px;text-shadow:0 1px 10px #000}
.timeline div{cursor:default;transition:background .3s;padding:18px 12px 6px;border-radius:0 0 10px 10px}
.timeline div:hover{background:rgba(34,228,245,.06)}

/* dovezi stiintifice */
.proofs{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:40px}
@media (max-width:1000px){.proofs{grid-template-columns:1fr 1fr}}
@media (max-width:640px){.proofs{grid-template-columns:1fr}}
.proof{border:1px solid var(--line);border-radius:var(--r);padding:24px;background:var(--bg2);position:relative}
.proof .pn{position:absolute;top:18px;right:20px;color:var(--cy);font-weight:800;opacity:.6}
.proof p{font-size:15px;color:#c3cad6}
.proof b{color:#fff}
.eq{font:600 16px "Cambria Math","Times New Roman",serif;color:var(--cy);background:#05070a;border:1px solid var(--line);border-radius:8px;padding:12px 14px;margin:6px 0 14px;overflow-x:auto;white-space:nowrap}
.ref{font-size:13px!important;color:var(--mut)!important}
.mini{width:100%;border-collapse:collapse;font-size:13px;margin-top:6px}
.mini th,.mini td{border-top:1px solid var(--line);padding:6px 4px;text-align:left}
.mini th{color:var(--mut);font-weight:600}
.sources{margin-top:28px;border:1px solid var(--line);border-radius:10px;padding:14px 18px}
.sources summary{cursor:pointer;font-weight:700}
.sources li{margin:8px 0;font-size:14px}
.sources a{color:var(--cy)}

/* ---- mobil ---- */
.proofs>*,.cards>*,.duo>*,.drawings>*,.split>*,.zgrid>*,.vgrid>*,.viewer>*,.timeline>*,.stats>*{min-width:0}
.eq{white-space:normal;overflow-wrap:anywhere}
@media (max-width:600px){
  body{font-size:16px}
  .sec{padding:72px 0}
  .wrap{padding:0 16px}
  .top{padding:12px 16px}
  .hero-txt{padding:0 16px 9vh}
  .hero-txt .lead{font-size:16px}
  .row .btn{flex:1;text-align:center}
  .stats{grid-template-columns:1fr 1fr}
  .stats div{padding:18px 14px}
  .timeline{grid-template-columns:1fr}
  .calc,.zsim{padding:18px}
  .cres b{font-size:44px}
  .hs{width:28px;height:28px;font-size:12px}
  .hcard{left:10px;right:10px;bottom:10px;max-width:none}
  .v3d{height:320px}
  .band{height:60vh;min-height:360px}
  .zl{font-size:24px}
  .mini{font-size:12px}
}
.proof h3{padding-right:34px}