/* ===========================================================
   TechIoT — main.css  (spójne ze SzamboControl)
   =========================================================== */
@font-face{font-family:"Geist";src:url("../fonts/Geist-Variable.woff2") format("woff2");font-weight:100 900;font-display:swap;font-style:normal}
@font-face{font-family:"Geist Mono";src:url("../fonts/GeistMono-Medium.woff2") format("woff2");font-weight:500;font-display:swap;font-style:normal}

:root{
  --green:#14B981; --green-700:#0FA06E; --green-300:#34E0A1;
  --ink:#0B1A22; --ink-2:#102A33; --teal:#0C403B;
  --mist:#F5F8F8; --white:#fff; --text:#16242C; --muted:#5B6B73; --line:#E5EBEB;
  --green-tint:#E9F8F1; --red:#E5564B; --red-tint:#FCE9E8;
  --maxw:1200px; --pad:24px; --r:18px; --r-lg:26px;
  --shadow:0 1px 2px rgba(11,26,34,.04),0 12px 40px rgba(11,26,34,.07);
  --shadow-sm:0 1px 2px rgba(11,26,34,.05),0 6px 18px rgba(11,26,34,.06);
  --font:"Geist",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  --mono:"Geist Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--text);background:var(--white);font-size:18px;line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--green-700);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{color:var(--ink);line-height:1.12;margin:0 0 .5em;letter-spacing:-.02em;font-weight:700}
h1{font-size:clamp(34px,5vw,60px)}
h2{font-size:clamp(28px,3.4vw,42px)}
h3{font-size:clamp(20px,2vw,26px)}
p{margin:0 0 1em}
.container{max-width:var(--maxw);margin:0 auto;padding:0 var(--pad)}
.eyebrow{font-family:var(--mono);text-transform:uppercase;letter-spacing:.16em;font-size:13px;color:var(--green-700);font-weight:500;margin:0 0 14px}
.section{padding:84px 0}
.section--mist{background:var(--mist)}
.section--ink{background:var(--ink);color:#cdd8da}
.section--ink h2,.section--ink h3{color:#fff}
.lead{font-size:clamp(18px,2vw,22px);color:var(--muted);max-width:760px}
.center{text-align:center}.center .lead{margin-inline:auto}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:10px;font-weight:600;font-size:17px;padding:15px 26px;border-radius:999px;border:1.5px solid transparent;cursor:pointer;transition:.18s;text-decoration:none;line-height:1}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn--primary{background:var(--green);color:#06231A;border-color:var(--green)}
.btn--primary:hover{background:var(--green-700);border-color:var(--green-700);color:#fff}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn--ghost:hover{border-color:var(--ink)}
.btn--light{background:#fff;color:var(--ink);border-color:#fff}
.btn--onink{background:var(--green);color:#06231A;border-color:var(--green)}
.btn--block{width:100%;justify-content:center}
.btn .arr{transition:transform .18s}.btn:hover .arr{transform:translateX(3px)}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.86);backdrop-filter:saturate(140%) blur(12px);border-bottom:1px solid var(--line)}
.hdr{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand img{height:38px;width:auto}
.nav{display:flex;align-items:center;gap:6px}
.nav a{color:var(--ink);font-weight:500;font-size:16px;padding:9px 13px;border-radius:10px}
.nav a:hover{background:var(--mist);text-decoration:none}
.nav .menu-item-has-children{position:relative}
.nav .sub-menu{position:absolute;top:100%;left:0;min-width:268px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:8px;display:none;list-style:none;margin:6px 0 0}
.nav .menu-item-has-children:hover .sub-menu{display:block}
.nav .sub-menu a{display:block;border-radius:9px}
.hdr-cta{display:flex;align-items:center;gap:14px;flex-shrink:0}
.hdr-phone{font-family:var(--mono);font-weight:500;color:var(--ink);white-space:nowrap}
.hdr-phone:hover{color:var(--green-700);text-decoration:none}
.nav-toggle{display:none;background:none;border:1.5px solid var(--line);border-radius:10px;width:46px;height:42px;cursor:pointer;align-items:center;justify-content:center}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{content:"";display:block;width:20px;height:2px;background:var(--ink);position:relative;transition:.2s}
.nav-toggle span::before{position:absolute;top:-6px}.nav-toggle span::after{position:absolute;top:6px}

/* hero */
.hero{background:linear-gradient(180deg,#0B1A22 0%,#0E2A30 100%);color:#cdd8da;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-120px;top:-120px;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,rgba(20,185,129,.5),transparent 60%);pointer-events:none}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;padding:78px 0 84px;position:relative;z-index:1}
.hero h1{color:#fff}
.hero .lead{color:#9FB2B3;max-width:560px}
.hero-cta{display:flex;gap:16px;margin-top:28px;max-width:560px}
.hero-cta .btn{flex:1 1 0;justify-content:center;padding:18px 22px;font-size:18px;white-space:nowrap}
.hero-types{display:flex;flex-wrap:wrap;align-items:center;gap:9px;margin-top:24px;max-width:560px}
.hero-types .lbl{font-family:var(--mono);font-size:12px;color:#9FB2B3;text-transform:uppercase;letter-spacing:.1em}
.hero-types a{display:inline-flex;align-items:center;gap:7px;font-size:15px;font-weight:600;color:#eaf1f0;background:rgba(255,255,255,.05);border:1.5px solid rgba(255,255,255,.14);border-radius:999px;padding:8px 14px;transition:.16s;text-decoration:none}
.hero-types a:hover{border-color:var(--green);color:var(--green-300);transform:translateY(-1px);text-decoration:none}
.hero-types a svg{width:16px;height:16px;stroke:var(--green-300);fill:none;stroke-width:2}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:30px;font-family:var(--mono);font-size:14px;color:#9FB2B3}
.hero-badges span{display:inline-flex;align-items:center;gap:8px}
.hero-badges b{color:var(--green-300);font-weight:500}
.hero-figure{position:relative}
.hero-figure .glow{position:absolute;inset:auto;left:50%;top:50%;width:80%;aspect-ratio:1;transform:translate(-50%,-50%);background:radial-gradient(circle,rgba(52,224,161,.28),transparent 62%)}
.hero-figure img{position:relative;margin-inline:auto;max-width:440px;filter:drop-shadow(0 30px 50px rgba(0,0,0,.45))}
.hero-rot{position:relative;max-width:440px;margin-inline:auto;aspect-ratio:1}
.hero-rot img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;opacity:0;transition:opacity .9s ease;filter:drop-shadow(0 30px 50px rgba(0,0,0,.45))}
.hero-rot img.on{opacity:1}

/* metric strip */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.metric .num{font-size:clamp(30px,3.6vw,44px);font-weight:700;color:var(--green-700);letter-spacing:-.02em}
.metric .lbl{color:var(--muted);font-size:15px;margin-top:4px}

/* feature cards */
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px;box-shadow:var(--shadow-sm);transition:.18s}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.ic{width:50px;height:50px;border-radius:13px;background:var(--green-tint);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.ic svg{width:26px;height:26px;stroke:var(--green-700);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.card h3{font-size:21px;margin-bottom:8px}
.card p{color:var(--muted);font-size:16px;margin:0}

/* product cards */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.prod{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow-sm);transition:.18s}
.prod:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.prod a{text-decoration:none;color:inherit}
.prod-thumb{aspect-ratio:4/3;background:linear-gradient(160deg,#F2F7F6,#E7F0EF);display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
.prod-thumb img{width:100%;height:100%;object-fit:cover}
.prod-thumb .ph{color:#9bb3ad;font-family:var(--mono);font-size:13px;text-align:center;padding:20px}
.prod-badge{position:absolute;top:12px;left:12px;background:#06231A;color:var(--green-300);font-family:var(--mono);font-size:11px;letter-spacing:.04em;padding:6px 11px;border-radius:999px}
.prod-body{padding:22px;display:flex;flex-direction:column;flex:1}
.prod-cat{font-family:var(--mono);font-size:12px;color:var(--green-700);text-transform:uppercase;letter-spacing:.1em;margin-bottom:8px}
.prod h3{font-size:20px;margin-bottom:8px}
.prod p{color:var(--muted);font-size:15px;margin:0 0 16px}
.prod-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px}
.prod-foot .price{font-weight:600;color:var(--ink)}
.prod-link{font-weight:600;color:var(--green-700);display:inline-flex;align-items:center;gap:6px}

/* product single */
.psingle{display:grid;grid-template-columns:1fr 1fr;gap:48px;padding:48px 0 24px}
.pgallery{position:sticky;top:96px;align-self:start}
.pgallery .main{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);background:linear-gradient(160deg,#F2F7F6,#E7F0EF);aspect-ratio:1;display:flex;align-items:center;justify-content:center}
.pgallery .main img{width:100%;height:100%;object-fit:cover}
.pgallery .ph{color:#9bb3ad;font-family:var(--mono);font-size:14px;text-align:center;padding:30px}
.pinfo .badge{display:inline-block;background:var(--green-tint);color:var(--green-700);font-family:var(--mono);font-size:13px;padding:6px 13px;border-radius:999px;margin-bottom:14px}
.pinfo h1{font-size:clamp(28px,3.6vw,40px)}
.pinfo .short{font-size:20px;color:var(--muted);margin:0 0 22px}
.pinfo .feats{list-style:none;padding:0;margin:0 0 26px;display:grid;gap:12px}
.pinfo .feats li{display:flex;gap:12px;align-items:flex-start;font-size:16px;color:var(--text)}
.pinfo .feats svg{flex:none;width:24px;height:24px;margin-top:1px;stroke:var(--green);fill:none;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}
.pbuy{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-bottom:10px}
.pbuy .price{font-size:22px;font-weight:700;color:var(--ink);margin-right:6px}
.pdesc{padding:8px 0 0;max-width:760px}
.pdesc h2{font-size:26px;margin-top:34px}
.specs{width:100%;border-collapse:collapse;margin:6px 0 0;border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.specs th,.specs td{text-align:left;padding:14px 18px;font-size:16px;border-bottom:1px solid var(--line);vertical-align:top}
.specs tr:last-child th,.specs tr:last-child td{border-bottom:0}
.specs th{width:42%;color:var(--muted);font-weight:500;background:var(--mist)}
.specs td{color:var(--ink);font-weight:500}

/* applications / sectors */
.apps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.app{border-radius:var(--r);overflow:hidden;border:1px solid rgba(255,255,255,.08);background:#102A33;color:#cdd8da}
.app .ph{aspect-ratio:16/10;background:linear-gradient(160deg,#123540,#0E2A30);display:flex;align-items:center;justify-content:center;color:#5e7b7f;font-family:var(--mono);font-size:13px}
.app img{aspect-ratio:16/10;object-fit:cover;width:100%}
.app-body{padding:18px 20px}
.app-body h3{color:#fff;font-size:19px;margin-bottom:6px}
.app-body p{color:#9FB2B3;font-size:15px;margin:0}

/* process steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:s}
.step{position:relative;padding-top:8px}
.step .n{width:46px;height:46px;border-radius:50%;background:var(--green-tint);color:var(--green-700);font-weight:700;display:flex;align-items:center;justify-content:center;margin-bottom:14px;font-size:20px}
.section--ink .step .n{background:rgba(20,185,129,.16);color:var(--green-300)}
.step h3{font-size:20px;margin-bottom:6px}
.step p{font-size:15px;color:var(--muted)}
.section--ink .step p{color:#9FB2B3}

/* split / panel */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split ul{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:12px}
.split li{display:flex;gap:12px;align-items:flex-start;font-size:17px}
.split li svg{flex:none;width:24px;height:24px;margin-top:1px;stroke:var(--green);fill:none;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}
.section--ink .split li{color:#cdd8da}
.shot{border-radius:var(--r-lg);border:1px solid rgba(255,255,255,.1);overflow:hidden;background:#0E2A30;aspect-ratio:4/3;display:flex;align-items:center;justify-content:center;color:#5e7b7f;font-family:var(--mono);font-size:14px;text-align:center;padding:20px}

/* FAQ */
.faq{max-width:820px;margin:0 auto}
.faq details{border:1px solid var(--line);border-radius:14px;margin-bottom:12px;background:#fff;overflow:hidden}
.faq summary{cursor:pointer;list-style:none;padding:20px 22px;font-weight:600;color:var(--ink);font-size:18px;display:flex;justify-content:space-between;gap:16px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:24px;color:var(--green-700);font-weight:400;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq .a{padding:0 22px 20px;color:var(--muted);font-size:16px}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:48px;align-items:start}
.contact-info .row{display:flex;gap:13px;align-items:flex-start;margin-bottom:18px}
.contact-info .row svg{flex:none;width:22px;height:22px;stroke:var(--green-700);fill:none;stroke-width:2;margin-top:3px}
.contact-info a{color:var(--ink);font-weight:600}
.company-card{margin-top:22px;padding:18px 20px;border:1px solid var(--line);border-radius:14px;background:var(--mist);font-size:15px;color:var(--muted)}
.form{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--shadow-sm)}
.form .frow{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form label{display:block;font-weight:600;font-size:14px;margin:0 0 6px;color:var(--ink)}
.field{margin-bottom:16px}
.form input,.form select,.form textarea{width:100%;padding:13px 15px;border:1.5px solid var(--line);border-radius:12px;font-family:inherit;font-size:16px;color:var(--ink);background:#fff;transition:.15s}
.form input:focus,.form select:focus,.form textarea:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px rgba(20,185,129,.14)}
.form .hp{position:absolute;left:-9999px}
.form-note{font-size:13px;color:var(--muted);margin-top:8px}
.alert{padding:14px 16px;border-radius:12px;margin-bottom:16px;font-size:15px}
.alert-ok{background:var(--green-tint);color:#0c6b4e;border:1px solid #bfe9d7}
.alert-err{background:var(--red-tint);color:#a8392f;border:1px solid #f3c9c4}

/* footer */
.site-footer{background:var(--ink);color:#90a3a6;padding:60px 0 28px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;margin-bottom:40px}
.foot-brand img{height:42px;margin-bottom:16px}
.foot-brand p{color:#7e9296;font-size:15px;max-width:340px}
.site-footer h4{color:#fff;font-size:15px;text-transform:uppercase;letter-spacing:.08em;margin-bottom:16px}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin-bottom:10px}
.site-footer a{color:#90a3a6}.site-footer a:hover{color:var(--green-300);text-decoration:none}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:22px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:14px;color:#6f8488}

/* breadcrumbs + misc */
.crumbs{font-size:14px;color:var(--muted);padding:18px 0 0}
.crumbs a{color:var(--muted)}.crumbs a:hover{color:var(--green-700)}
.page-head{padding:40px 0 8px}
.page-head .lead{margin-top:8px}
.pager{display:flex;gap:10px;justify-content:center;margin-top:40px}
.pager a,.pager span{padding:9px 15px;border:1px solid var(--line);border-radius:10px;color:var(--ink)}
.pager .current{background:var(--ink);color:#fff;border-color:var(--ink)}

/* blog */
.posts{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.post-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow-sm);transition:.18s;display:flex;flex-direction:column}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.post-card .thumb{aspect-ratio:16/9;background:linear-gradient(160deg,#F2F7F6,#E7F0EF);overflow:hidden}
.post-card .thumb img{width:100%;height:100%;object-fit:cover}
.post-card .pc-body{padding:22px;display:flex;flex-direction:column;flex:1}
.post-card h3{font-size:20px;margin-bottom:8px}
.post-card p{color:var(--muted);font-size:15px;margin:0 0 16px}
.post-meta{font-family:var(--mono);font-size:12px;color:var(--green-700);text-transform:uppercase;letter-spacing:.08em;margin-bottom:10px}
.article{max-width:760px;margin:0 auto;padding:20px 0 0;font-size:18px}
.article h2{margin-top:40px}.article h3{margin-top:28px}
.article img{border-radius:14px;margin:24px 0}
.article ul,.article ol{padding-left:22px}

/* CTA band */
.ctaband{background:linear-gradient(120deg,#16C98A,#0FA06E);color:#06231A;border-radius:var(--r-lg);padding:48px;text-align:center}
.ctaband h2{color:#06231A}
.ctaband p{color:#0a3b2c;max-width:620px;margin:0 auto 22px;font-size:18px}

/* responsive */
@media(max-width:980px){
  .hero-grid,.psingle,.split,.contact-grid{grid-template-columns:1fr;gap:32px}
  .grid-3,.grid-4,.prod-grid,.apps,.posts{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .metrics{grid-template-columns:repeat(2,1fr);gap:28px}
  .pgallery{position:static}
  .hero-figure{order:-1}
}
@media(max-width:680px){
  body{font-size:17px}
  .section{padding:60px 0}
  .nav,.hdr-phone{display:none}
  .hero-grid>div:first-child{text-align:center}
  .hero .lead{margin-inline:auto}
  .hero-cta{flex-direction:column;align-items:center;max-width:none}
  .hero-cta .btn{flex:0 0 auto;width:auto;min-width:230px}
  .hero-types{max-width:none;justify-content:center}
  .hero-types .lbl{flex-basis:100%;text-align:center;margin-bottom:2px}
  .hero-badges{justify-content:center}
  .nav-toggle{display:flex}
  .site-header.open .nav{display:flex;position:absolute;top:72px;left:0;right:0;flex-direction:column;align-items:stretch;background:#fff;border-bottom:1px solid var(--line);padding:10px var(--pad) 18px;gap:2px}
  .site-header.open .nav .sub-menu{position:static;display:block;box-shadow:none;border:0;padding:0 0 0 12px;margin:0}
  .grid-2,.grid-3,.grid-4,.prod-grid,.apps,.posts,.steps,.metrics{grid-template-columns:1fr}
  .form .frow{grid-template-columns:1fr}
  .ctaband{padding:32px 22px}
  .foot-grid{grid-template-columns:1fr;gap:28px}
}