/* NovotnyTech – style.css */

:root{
  --bg:#04091a;
  --bg-2:#070f27;
  --surface:#0a1633;
  --surface-2:#0e1e44;
  --line:rgba(120,160,255,.14);
  --line-strong:rgba(120,160,255,.28);
  --text:#eaf1ff;
  --muted:#94a9d4;
  --blue:#4d8dff;
  --blue-deep:#2f6bff;
  --cyan:#39d0ff;
  --signal:#ff8a3d;
  --font:"Geist","Segoe UI",system-ui,-apple-system,sans-serif;
  --mono:"Geist Mono",ui-monospace,"SF Mono",Consolas,monospace;
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px);
  padding-bottom:env(safe-area-inset-bottom,0px);
}
*,*::before,*::after{box-sizing:inherit}
html{scroll-behavior:smooth;scroll-padding-top:calc(84px + env(safe-area-inset-top,0px));-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--font);font-size:1.0625rem;line-height:1.6;
  -webkit-font-smoothing:antialiased;hyphens:auto;overflow-x:hidden;
}
a{color:inherit}
button{font:inherit;color:inherit}
img,svg,canvas{max-width:100%}
h1,h2,h3{margin:0;font-weight:600;letter-spacing:-.02em;line-height:1.12}
p{margin:0}
ul,ol,dl,dd{margin:0;padding:0}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:4px}
.wrap{width:min(1240px,100% - 56px);margin-inline:auto}
.skip{position:absolute;left:-9999px;top:8px;background:var(--blue-deep);color:#fff;padding:8px 14px;border-radius:8px;z-index:100}
.skip:focus{left:8px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:600;font-size:1.02rem;text-decoration:none;cursor:pointer;
  padding:14px 26px;border-radius:10px;border:1px solid transparent;
  transition:transform .15s,box-shadow .2s,background .2s,border-color .2s;
}
.btn-sm{padding:9px 18px;font-size:.95rem;border-radius:8px}
.btn-primary{
  background:linear-gradient(180deg,#5f9dff,#2f6bff);color:#fff;
  box-shadow:0 6px 24px rgba(47,107,255,.38),inset 0 1px 0 rgba(255,255,255,.25);
}
.btn-primary:hover{box-shadow:0 8px 32px rgba(47,107,255,.6),inset 0 1px 0 rgba(255,255,255,.25);transform:translateY(-1px)}
.btn-ghost{border-color:var(--line-strong);color:#d6e3ff;background:rgba(14,30,68,.45)}
.btn-ghost:hover{background:var(--surface-2);border-color:var(--blue)}
.link-btn{
  background:none;border:0;padding:0;cursor:pointer;color:var(--cyan);font-weight:600;font-size:1rem;
  border-bottom:1px solid rgba(57,208,255,.4);padding-bottom:2px;
}
.link-btn:hover{border-color:var(--cyan)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:env(safe-area-inset-top,0px);z-index:50;
  background:rgba(4,9,26,.72);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;transition:border-color .25s,background .25s;
}
.site-header.scrolled{border-color:var(--line);background:rgba(4,9,26,.9)}
.bar{display:flex;align-items:center;justify-content:space-between;height:76px;gap:24px}
.brand{display:flex;align-items:center;gap:14px;text-decoration:none}
.brand svg{height:36px;width:auto;filter:drop-shadow(0 0 10px rgba(77,141,255,.5))}
.brand .sep{width:1px;height:32px;background:linear-gradient(var(--blue),transparent)}
.wordmark{font-weight:600;font-size:1.3rem;letter-spacing:-.01em}
.wordmark b{font-weight:600;color:var(--cyan)}
.nav{display:flex;gap:34px;margin-inline:auto}
.nav a{text-decoration:none;color:#c4d3f3;font-weight:500;font-size:.98rem;padding:6px 0;border-bottom:1.5px solid transparent;transition:color .2s,border-color .2s}
.nav a:hover{color:#fff;border-color:var(--blue)}
.bar-right{display:flex;align-items:center;gap:16px}
.lang{display:flex;border:1px solid var(--line-strong);border-radius:999px;padding:3px;background:var(--bg-2)}
.lang button{font-size:.85rem;font-weight:600;color:var(--muted);background:none;border:0;padding:5px 12px;border-radius:999px;cursor:pointer}
.lang button[aria-pressed="true"]{background:var(--blue-deep);color:#fff}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(900px 560px at 75% 35%,rgba(47,107,255,.24),transparent 65%),
    radial-gradient(700px 420px at 0% 100%,rgba(57,208,255,.07),transparent 70%),
    var(--bg);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(77,141,255,.08) 1px,transparent 1px),
    linear-gradient(90deg,rgba(77,141,255,.08) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(ellipse 80% 75% at 65% 40%,#000 0,transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse 80% 75% at 65% 40%,#000 0,transparent 75%);
}
.hero-grid{
  position:relative;display:grid;grid-template-columns:.88fr 1.12fr;align-items:center;gap:56px;
  padding-block:72px 88px;
}
h1{
  font-size:clamp(2.2rem,4.3vw,3.9rem);letter-spacing:-.035em;line-height:1.04;margin-bottom:26px;
}
.lead{font-size:clamp(1.05rem,1.5vw,1.25rem);color:#b8cbf0;max-width:30em;margin-bottom:38px}
.cta-row{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 3D viewer ---------- */
.viewer{
  position:relative;aspect-ratio:1.08/1;min-height:440px;width:100%;
  border:1px solid var(--line-strong);border-radius:22px;overflow:hidden;
  background:
    radial-gradient(520px 320px at 50% 62%,rgba(47,107,255,.26),transparent 70%),
    linear-gradient(180deg,rgba(10,22,51,.75),rgba(4,9,26,.9));
  box-shadow:0 30px 80px rgba(0,0,0,.45),0 0 0 1px rgba(255,255,255,.02) inset;
}
.v-corners i{position:absolute;width:18px;height:18px;border:2px solid var(--blue);opacity:.8;pointer-events:none;z-index:3}
.v-corners i:nth-child(1){top:10px;left:10px;border-right:0;border-bottom:0}
.v-corners i:nth-child(2){top:10px;right:10px;border-left:0;border-bottom:0}
.v-corners i:nth-child(3){bottom:10px;left:10px;border-right:0;border-top:0}
.v-corners i:nth-child(4){bottom:10px;right:10px;border-left:0;border-top:0}
.v-canvas{position:absolute;inset:0;touch-action:pan-y;cursor:grab}
.v-canvas:active{cursor:grabbing}
.v-canvas canvas{display:block;width:100%;height:100%}
.v-top,.v-bottom{position:absolute;left:26px;right:26px;z-index:2;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;pointer-events:none}
.v-top{top:24px;align-items:flex-start}
.v-bottom{bottom:22px;align-items:flex-end}
.v-top>*,.v-bottom>*{pointer-events:auto}
.v-title{display:flex;flex-direction:column;gap:2px}
.v-id{font-family:var(--mono);font-size:.8rem;color:var(--signal);letter-spacing:.04em}
.v-title strong{font-size:1.15rem;font-weight:600;letter-spacing:-.01em}
.v-tabs,.v-modes{display:flex;gap:4px;padding:3px;border:1px solid var(--line-strong);border-radius:999px;background:rgba(4,9,26,.72);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.v-tabs button,.v-modes button{
  background:none;border:0;cursor:pointer;color:var(--muted);font-size:.86rem;font-weight:500;
  padding:6px 13px;border-radius:999px;transition:background .2s,color .2s;
}
.v-tabs button:hover,.v-modes button:hover{color:#fff}
.v-tabs button[aria-pressed="true"],.v-modes button[aria-pressed="true"]{background:var(--blue-deep);color:#fff}
.v-modes button[data-mode="print"][aria-pressed="true"]{background:var(--cyan);color:#04142a}
.v-info{display:grid;gap:4px}
.v-readout{font-family:var(--mono);font-size:.82rem;color:var(--muted)}
.v-readout b{color:var(--text);font-weight:500}
.v-hint{font-size:.8rem;color:#6b82b3}
.v-hotspots{position:absolute;inset:0;z-index:2;pointer-events:none;overflow:hidden}
.hs{position:absolute;left:0;top:0;will-change:transform}
.hs i{position:absolute;left:-5px;top:-5px;width:10px;height:10px;border-radius:50%;background:var(--signal);box-shadow:0 0 0 4px rgba(255,138,61,.25)}
.hs span{
  position:absolute;left:14px;top:-11px;white-space:nowrap;font-size:.76rem;font-weight:500;
  background:rgba(4,9,26,.85);border:1px solid rgba(255,138,61,.45);color:#ffd9bf;
  padding:2px 9px;border-radius:6px;
}
.v-fallback{position:absolute;inset:0;display:grid;place-items:center;text-align:center;padding:30px;color:var(--muted);z-index:4}
.v-fallback[hidden]{display:none}
[hidden]{display:none !important}

/* ---------- materials ---------- */
.materials{border-block:1px solid var(--line);background:var(--bg-2)}
.mat-row{display:flex;align-items:center;gap:28px;flex-wrap:wrap;padding-block:20px}
.mat-title{font-weight:600;font-size:.95rem;color:var(--text)}
.mat-list{list-style:none;display:flex;flex-wrap:wrap}
.mat-list li{font-family:var(--mono);font-size:.9rem;color:#c5d4f4;padding:2px 18px;border-left:1px solid var(--line-strong)}
.mat-list li:first-child{border-left:0;padding-left:0}
.mat-note{font-size:.9rem;color:var(--muted);margin-left:auto;max-width:30em}

/* ---------- generic section ---------- */
section{padding-block:112px}
.sec-head{margin-bottom:56px;max-width:36em}
h2{font-size:clamp(1.8rem,3.2vw,2.75rem);margin-bottom:16px}
.sub{color:var(--muted);max-width:34em;font-size:1.1rem}

/* ---------- services explorer ---------- */
.svc{display:grid;grid-template-columns:.78fr 1.22fr;gap:40px;align-items:start}
.svc-tabs{display:grid;border-top:1px solid var(--line)}
.svc-tabs button{
  position:relative;text-align:left;background:none;border:0;border-bottom:1px solid var(--line);
  padding:22px 22px 22px 26px;cursor:pointer;display:grid;gap:2px;color:var(--muted);transition:background .2s,color .2s;
}
.svc-tabs button strong{font-size:1.3rem;font-weight:600;letter-spacing:-.015em;color:#b9c9ec}
.svc-tabs button span{font-size:.95rem}
.svc-tabs button::before{content:"";position:absolute;left:0;top:-1px;bottom:-1px;width:3px;background:var(--blue);transform:scaleY(0);transition:transform .25s}
.svc-tabs button:hover{background:rgba(14,30,68,.5)}
.svc-tabs button[aria-selected="true"]{background:var(--surface);color:var(--text)}
.svc-tabs button[aria-selected="true"] strong{color:#fff}
.svc-tabs button[aria-selected="true"]::before{transform:scaleY(1)}
.svc-panel{border:1px solid var(--line-strong);border-radius:18px;background:var(--surface);overflow:hidden}
.svc-panel[hidden]{display:none}
.art-box{
  background:
    linear-gradient(rgba(77,141,255,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(77,141,255,.07) 1px,transparent 1px),
    var(--bg-2);
  background-size:32px 32px;border-bottom:1px solid var(--line);padding:18px 24px;
}
.art svg{display:block;width:100%;height:auto;max-height:300px}
.svc-body{padding:28px 30px 32px;display:grid;gap:20px;justify-items:start}
.svc-body>p{font-size:1.12rem;color:#cbd9f5;max-width:36em}
.chips{list-style:none;display:flex;flex-wrap:wrap;gap:8px}
.chips li{font-size:.9rem;color:#b9cbf2;background:var(--surface-2);border:1px solid var(--line);border-radius:6px;padding:4px 12px}

/* service art */
.art .ln{fill:none;stroke:var(--blue);stroke-width:2;stroke-linejoin:round}
.art .ln-soft{fill:none;stroke:#3a5ba8;stroke-width:1.5;stroke-dasharray:5 5}
.art .dim{fill:none;stroke:var(--signal);stroke-width:1.4}
.art .dim-f{fill:var(--signal)}
.art .pt{fill:var(--cyan)}
.art text{fill:#8fa6d6;font:500 13px var(--mono)}
.art text.sig{fill:var(--signal)}

/* ---------- applications ---------- */
.apps{background:var(--bg-2);border-block:1px solid var(--line)}
.apps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:48px}
.app{border-top:2px solid var(--blue);padding-top:24px;display:grid;gap:14px;justify-items:start;align-content:start}
.app:nth-child(2){border-color:var(--cyan)}
.app:nth-child(3){border-color:var(--signal)}
.app h3{font-size:1.35rem;letter-spacing:-.015em}
.app p{color:var(--muted)}

/* ---------- gallery ---------- */
.work-grid{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:minmax(0,1fr);gap:18px}
.work-item{margin:0;display:grid;gap:10px;grid-template-rows:1fr auto;min-width:0}
.work-item.big{grid-column:span 2;grid-row:span 2}
.work-item figcaption{font-size:.93rem;color:var(--muted)}
.work-btn{
  position:relative;display:block;width:100%;height:100%;min-height:200px;padding:0;cursor:default;
  border:1px solid var(--line-strong);border-radius:14px;overflow:hidden;background:var(--surface);
}
.work-item:not(.big) .work-btn{aspect-ratio:4/3;height:auto}
.work-item.has-img .work-btn{cursor:zoom-in}
.work-btn img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s}
.work-item.has-img .work-btn:hover img{transform:scale(1.03)}
.ph{
  position:absolute;inset:0;display:grid;place-content:center;justify-items:center;gap:10px;color:#5f79b0;
  background:
    linear-gradient(rgba(77,141,255,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(77,141,255,.07) 1px,transparent 1px),
    var(--bg-2);
  background-size:28px 28px;
}
.ph svg{width:44px;height:44px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linejoin:round}
.ph em{font-style:normal;font-size:.9rem}
.work-item.has-img .ph{display:none}

.lightbox{
  border:1px solid var(--line-strong);border-radius:16px;background:var(--surface);color:var(--text);
  padding:14px;max-width:min(1100px,94vw);max-height:92vh;
}
.lightbox::backdrop{background:rgba(2,5,14,.86);backdrop-filter:blur(4px)}
.lightbox img{display:block;max-width:100%;max-height:76vh;border-radius:10px;margin-inline:auto}
.lightbox p{margin:12px 4px 2px;color:var(--muted);font-size:.95rem}
.lb-close{
  position:absolute;top:10px;right:10px;width:38px;height:38px;border-radius:50%;cursor:pointer;
  border:1px solid var(--line-strong);background:rgba(4,9,26,.85);color:#fff;font-size:1.4rem;line-height:1;z-index:2;
}
.lb-close:hover{border-color:var(--blue)}

/* ---------- process ---------- */
.steps{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);counter-reset:s}
.steps li{position:relative;padding-right:32px}
.steps li::before{
  counter-increment:s;content:counter(s);
  display:grid;place-items:center;width:46px;height:46px;border-radius:50%;
  background:var(--bg);border:2px solid var(--blue);font-weight:600;position:relative;z-index:1;
  box-shadow:0 0 18px rgba(77,141,255,.35);
}
.steps li::after{content:"";position:absolute;top:22px;left:50px;right:4px;border-top:2px dashed #27468c}
.steps li:last-child::after{display:none}
.steps h3{font-size:1.25rem;margin:24px 0 8px}
.steps p{color:var(--muted);font-size:1rem}

/* ---------- why ---------- */
.why{background:linear-gradient(180deg,var(--bg-2),var(--bg));border-top:1px solid var(--line)}
.why-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:72px;align-items:start}
.facts{display:grid;border-top:1px solid var(--line)}
.facts>div{padding:26px 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:.8fr 1.2fr;gap:24px}
.facts dt{font-size:1.2rem;font-weight:600;letter-spacing:-.01em}
.facts dd{color:var(--muted)}

/* ---------- about me ---------- */
.me{border-top:1px solid var(--line)}
.me-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px 72px;align-items:start}
.me-text{display:grid;gap:20px;max-width:38em}
.me-text h2{margin-bottom:6px}
.me-text p{color:#c3d3f2}
.me-text .me-lead{font-size:1.28rem;line-height:1.5;color:var(--text);letter-spacing:-.01em}

.me-photo{
  position:relative;margin:0;justify-self:end;width:100%;max-width:430px;aspect-ratio:4/5;
  border:1px solid var(--line-strong);border-radius:22px;overflow:hidden;background:var(--surface);
  box-shadow:0 30px 70px rgba(0,0,0,.4);
}
.me-photo img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 25%}
.me-photo.has-img .ph{display:none}
.me-photo::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:34%;pointer-events:none;
  background:linear-gradient(transparent,rgba(3,7,22,.82));
}
.me-photo figcaption{position:absolute;left:22px;bottom:18px;z-index:1;font-weight:600;font-size:1.05rem;color:#fff;letter-spacing:-.01em}

.me-card{
  grid-column:1/-1;display:grid;grid-template-columns:repeat(4,1fr);
  border:1px solid var(--line-strong);border-radius:18px;background:var(--surface);overflow:hidden;
}
.me-card>div{padding:24px 26px;border-right:1px solid var(--line);display:grid;gap:6px;align-content:start}
.me-card>div:last-child{border-right:0}
.me-card dt{font-size:.88rem;color:var(--signal);font-weight:500}
.me-card dd{font-size:1.02rem;color:#dbe6ff}

/* ---------- FAQ ---------- */
.faq{padding-top:40px}
.faq-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:72px;align-items:start}
.faq-list{border-top:1px solid var(--line)}
details{border-bottom:1px solid var(--line)}
summary{
  list-style:none;cursor:pointer;padding:22px 40px 22px 0;font-size:1.15rem;font-weight:500;position:relative;
}
summary::-webkit-details-marker{display:none}
summary::after{
  content:"";position:absolute;right:6px;top:50%;width:11px;height:11px;margin-top:-8px;
  border-right:2px solid var(--blue);border-bottom:2px solid var(--blue);transform:rotate(45deg);transition:transform .25s;
}
details[open] summary::after{transform:rotate(-135deg);margin-top:-2px}
details p{color:var(--muted);padding:0 40px 24px 0;max-width:36em}

/* ---------- contact ---------- */
.contact{
  background:radial-gradient(800px 460px at 100% 0,rgba(47,107,255,.2),transparent 70%),var(--bg-2);
  border-top:1px solid var(--line);
}
.contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:72px;align-items:start}
.mail{display:inline-block;margin-top:30px;font-weight:600;font-size:1.2rem;color:var(--cyan);text-decoration:none;border-bottom:1px solid rgba(57,208,255,.4);word-break:break-all}
.mail:hover{border-color:var(--cyan)}
form{background:var(--surface);border:1px solid var(--line-strong);border-radius:18px;padding:34px;display:grid;grid-template-columns:1fr 1fr;gap:20px}
.field{display:grid;gap:7px}
.field.full{grid-column:1/-1}
label{font-weight:500;font-size:.96rem;color:#d3e0fb}
input,select,textarea{
  font:inherit;color:var(--text);background:var(--bg);
  border:1px solid #27427f;border-radius:9px;padding:12px 14px;width:100%;
}
textarea{min-height:150px;resize:vertical}
input::placeholder,textarea::placeholder{color:#6f86b8}
input:focus,select:focus,textarea:focus{outline:2px solid var(--blue);outline-offset:0;border-color:var(--blue)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.consent{display:flex;gap:12px;align-items:flex-start;font-size:.92rem;color:var(--muted);font-weight:400}
.consent input{width:20px;height:20px;margin-top:3px;flex:none;accent-color:var(--blue-deep)}
.submit-row{grid-column:1/-1;display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.status{font-size:.98rem;min-height:1.4em}
.status.ok{color:#6ee7a8}
.status.err{color:#ffb4a8}
.status a{color:inherit}
.note{grid-column:1/-1;margin:-4px 0 0;font-size:.9rem;color:var(--muted)}

.site-footer{padding-block:34px;border-top:1px solid var(--line);color:var(--muted);font-size:.95rem}
.foot{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
.site-footer a{text-decoration:none;color:#c6d6f8}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .hero-grid{grid-template-columns:1fr;gap:44px;padding-block:48px 72px}
  .nav{display:none}
  .bar-right{margin-left:auto}
  .svc,.why-grid,.faq-grid,.contact-grid{grid-template-columns:1fr;gap:40px}
  .me-grid{grid-template-columns:1fr;gap:40px}
  .me-photo{justify-self:start;max-width:380px}
  .me-card{grid-template-columns:1fr 1fr}
  .me-card>div{border-bottom:1px solid var(--line)}
  .me-card>div:nth-child(2n){border-right:0}
  .me-card>div:nth-last-child(-n+2){border-bottom:0}
  .apps-grid{grid-template-columns:1fr;gap:40px}
  .steps{grid-template-columns:1fr 1fr;row-gap:44px}
  .steps li:nth-child(2)::after{display:none}
  section{padding-block:84px}
  .mat-note{margin-left:0}
  .work-grid{grid-template-columns:1fr 1fr}
  .work-item.big{grid-column:span 2;grid-row:auto}
  .work-item.big .work-btn{aspect-ratio:16/10;height:auto}
}
@media (max-width:700px){
  .wrap{width:min(1240px,100% - 36px)}
  .bar{height:66px}
  .brand .sep{display:none}
  .wordmark{font-size:1.15rem}
  .nav-cta{display:none}
  .viewer{aspect-ratio:auto;height:520px;min-height:0}
  .v-top,.v-bottom{left:16px;right:16px}
  .v-top{top:18px}
  .v-bottom{bottom:16px}
  .v-tabs button,.v-modes button{padding:6px 10px;font-size:.8rem}
  .hs span{display:none}
  .v-hint{display:none}
  form{grid-template-columns:1fr;padding:22px}
  .steps{grid-template-columns:1fr}
  .steps li::after{display:none}
  .facts>div{grid-template-columns:1fr;gap:6px}
  .me-card{grid-template-columns:1fr}
  .me-card>div{border-right:0;border-bottom:1px solid var(--line)}
  .me-card>div:nth-last-child(-n+2){border-bottom:1px solid var(--line)}
  .me-card>div:last-child{border-bottom:0}
  .me-photo{max-width:100%}
  .svc-body{padding:22px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition:none !important}
}