:root{--bg:#212529;--fg:#fff;--dk:#111;--muted:rgba(255, 255, 255, 0.8);--brand:#C80706;--card:#2A3034;--cbg:#212429;--b:#cccccc0f}
*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--bg);color:var(--fg);font:18px/1.5 system-ui, -apple-system, Segoe UI, Roboto, Arial}
html{scroll-behavior:smooth;scroll-padding-top:68px}
a{color:inherit;text-decoration:none;color:var(--muted)} .container{max-width:1270px;margin:0 auto;padding:18px 2em}
.flex{display:flex;gap:16px}.between{justify-content:space-between}.center{align-items:center}
#top{scroll-margin-top:50px}
.site-header{position:sticky;top:0;z-index:20}
.header{padding:18px 1em;background-image:linear-gradient(180deg, rgba(33, 37, 41, 0.01) 0%, rgba(33 37 41/.2) 100%)}
.header.active{background:var(--bg);border-bottom:1px solid var(--b)}
.brand img{display:block}
.nav a{margin:0 8px;padding:8px 2px;border-radius:6px;color:var(--muted)}a:hover{color:var(--fg)}
.actions{display:flex;gap:10px;align-items:center}
.hamburger{display:none;background:transparent;border:0;font-size:22px;cursor:pointer;color:var(--fg)}
.dropdown{position:relative}
.dropdown-btn{background:var(--dk);color:var(--fg);border:0;border-radius:999px;padding:8px 12px;cursor:pointer}
.dropdown-menu{position:absolute;right:0;top:120%;background:var(--bg);border:1px solid var(--b);border-radius:10px;box-shadow:0 10px 24px rgba(0,0,0,.06);display:none;min-width:123px}
@media(max-width:480px){.dropdown-menu{box-shadow:0 10px 24px rgba(255,255,255,.06)}}
.dropdown-menu a{display:block;padding:8px 12px}
.dropdown.open .dropdown-menu{display:block;overflow:hidden}
#langBtn:hover, #langMenu a:hover{background-color:var(--brand)}

.flag{display:inline-block;width:1.1em;height:0.8em;vertical-align:-0.1em;background-size:cover;margin-right:.4em;padding:9px}
.flag-lv{background-image:url("/assets/img/flags/lv.svg");}
.flag-lt{background-image:url("/assets/img/flags/lt.svg");}
.flag-fr{background-image:url("/assets/img/flags/fr.svg");}
.flag-ee{background-image:url("/assets/img/flags/ee.svg");}
.flag-gb{background-image:url("/assets/img/flags/gb.svg");}
.flag-ru{background-image:url("/assets/img/flags/ru.svg");}

.hero{padding:48px 0 16px}.hero h1{font-size:36px;margin:0 0 10px}.lead{color:var(--muted);max-width:740px}
.btn{display:inline-block;background:var(--brand);color:var(--fg);border-radius:999px;padding:10px 14px;border:0;cursor:pointer;font-weight:600}
.btn:hover{background:var(--dk)}
.btn.outline{background:transparent;border:1px solid var(--b)}
.btn.outline:hover{background:var(--b)}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{border:1px solid var(--b);border-radius:14px;padding:16px;box-shadow:0 4px 12px rgba(0,0,0,0.3)}
/*.card, .service-panels .panel{border:1px solid var(--b);border-radius:14px;padding:16px;box-shadow:0 4px 12px rgba(0,0,0,0.3)}*/
:focus-visible{outline:solid 1px #689af6}

/* Single YouTube embed */
.video-embed{position:relative;aspect-ratio:16/9;background:#000;border-radius:14px;overflow:hidden}.m-b{margin-bottom:1em}
.video-embed iframe{position:absolute; inset:0;width:100%; height:100%;border:0}
.yt{ position:relative;background:#000;aspect-ratio:16/9;cursor:pointer}
.yt img{width:100%;height:100%;object-fit:cover;display:block}
.yt-play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:68px;height:48px;-webkit-transition:opacity .25s cubic-bezier(0,0,.2,1);transition:opacity .25s cubic-bezier(0,0,.2,1)}
.yt:focus{ outline:2px solid #09f; outline-offset:2px}

.service-tabs{display:flex;flex-wrap:wrap;gap:8px}
.tab{border:1px solid var(--dk);background:var(--dk);border-radius:999px;padding:8px 14px;cursor:pointer;color: var(--fg)}
.tab:hover{background:var(--brand);border-color:var(--brand);color:var(--fg)}
.tab.active{background:var(--brand);color:var(--fg);border-color:var(--brand)}
.service-panels{margin-top:8px}
.service-panels .panel{display:none}
.service-panels .panel.active{display:block}
.service-tabs .tab.active{font-weight:600}
.wysiwyg .inner-section{display:grid;gap:1rem;grid-template-columns:1fr 1fr}

.service-tabs{display:flex;flex-wrap:wrap;gap:8px}
.tab{border:1px solid var(--dk);background:var(--dk);border-radius:999px;padding:8px 14px;cursor:pointer;color: var(--fg)}
.tab:hover{background:var(--brand);border-color:var(--brand);color:var(--fg)}
.tab.active{background:var(--brand);color:var(--fg);border-color:var(--brand)}
.service-panels{margin-top:8px}
.service-panels .panel{display:none}
.service-panels .panel.active{display:block}
.service-tabs .tab.active{font-weight:600}
.wysiwyg .inner-section{display:grid;gap:1rem;grid-template-columns:1fr 1fr}

/* insulation */
.adventages{background:var(--card);border-radius:14px;padding:1em}
.alignc{text-align:center}
.adv-title h4{margin:0}
.adv-list-items{list-style-type:none;margin:0;padding:0}
.adv-list-item{align-items:center;display:flex;margin-block-start:calc(16px/2)}
.adv-list-icon i{color:var(--brand)}
.adv-list-text{padding-inline-start:6px}
@media (max-width: 480px){.adventages{font-size:.9em;padding:.6em}.adventages img{max-width:267.8px;max-height:66.95px}}

/* Pirags */
.pirags > .pirags-wrap{display:flex}
.pirags-image{text-align:center}.pirags-image a{display:inline-block}.pirags-image a img[src$=".svg"]{width:48px}.pirags-image img{vertical-align:middle;display:inline-block}
.pirags-image img{vertical-align:middle;display: inline-block}
.pirags img{height:auto;max-width:100%;border:none;border-radius:0;box-shadow:none}
.pirags-position{padding-right:0px;padding-left:0px;margin-top:-15px}
#pirags-overlay{position:absolute}
.position{margin-left:-1rem;}
@media(min-width:901px){.position{width:630px}}

/* PDF buttons */
.pdf-row{display:flex;flex-wrap:wrap;margin:-10px}
.pdf-col{width:100%;padding:10px}
@media (min-width: 576px){.pdf-col{width:50%}}
@media (min-width: 992px){.pdf-col{width:33.3333%}}
.pdf-box{padding:1em;background:var(--card);border-radius:8px;box-shadow:0 2px 4px rgba(0,0,0,0.2)}
.text-center{text-align:center}
.pdf-box h2{margin:0}
.pdf-icon{display:flex;justify-content:center;gap:10px;margin-top:0.5rem}
.pdf-icon a,.pdf-icon button{font-size:1.2rem;background:none;border:none;cursor:pointer;color:#cecece!important}
.pdf-btn{background:none!important;padding:0!important;color:#cecece!important;cursor:pointer}
.pdf-icon button:hover,.pdf-icon a:hover{color:#c00!important}
/* pdf tootlip for chrome android */
.pdf-tip{position:absolute;z-index:2147483647;max-width:98vw;padding:10px 14px;background:var(--dk);color:var(--fg);box-shadow:0 6px 20px rgba(0,0,0,.35);border-radius:12px;
font-size:.95rem;line-height:1.35;opacity:0;transform:translateY(-4px);transition:opacity .18s ease,transform .18s ease}
.pdf-tip.show{opacity:1;transform:translateY(0)}
.pdf-tip::after{content:"";position:absolute;left:50%;transform:translateX(-50%);width:0;height:0;border:6px solid transparent;border-top-color:var(--dk);bottom:-12px}
.pdf-tip.below{transform:translateY(4px)}
.pdf-tip.below::after{top:-12px;bottom:auto;border:6px solid transparent;border-bottom-color:var(--dk)}
.pdf-tip.toast{position:fixed;top:auto}

/* Estrotech-H product */
.product-section{scroll-margin-top:50px;margin:2rem 0}
.product-card{display:grid;gap:1.25rem;align-items:start;grid-template-columns:1fr 1.2fr;padding:1.25rem}
.product-media img{width:100%;height:auto;border-radius:12px;display:block}
.product-body h3{margin:.25rem 0 .75rem}
.product-body .lead{font-size:1.05rem;margin:0 0 1rem}
.mixing h4,.howto h4{margin:1rem 0 .5rem}
.ratio{margin:.25rem 0 1rem 1.25rem}
.ratio li{ margin:.25rem 0}
.product-note{background:rgba(255,255,255, .03);border:1px dashed #d8dae1;border-radius:10px;padding:.75rem}
@media (max-width: 900px){.product-card{grid-template-columns:1fr}}
@media (max-width: 360px){.product-card{padding:0}}

/* Conductivity compare */
.conduct-section{scroll-margin-top:50px;margin-top:28px}
.conduct-title{text-align:center;margin-bottom:18px}
.conduct-grid{display:grid;gap:1rem;grid-template-columns:repeat(2,minmax(0,1fr))}
@media (max-width: 900px){.conduct-grid{grid-template-columns:1fr}}
.conduct-card{background:var(--card);border:1px solid var(--b);border-radius:14px;padding:16px}
.conduct-card h4{text-align:center;margin:6px 0 14px;line-height:1.3}
.conduct-card .unit{font-weight:400;color:var(--muted,#777)}
.conduct-fig{margin:0 0 12px;display:grid;place-items:center;padding:8px}
.conduct-fig img{width:100%;height:auto;max-width:420px;display:block}
.conduct-row{margin:4px 0;font-size:1.05rem;text-align:center}
.conduct-row b{font-variant-numeric:tabular-nums}

/* Tabula */
#tabula{margin:1em auto;max-width:900px;padding:1em;border-radius:12px;font-family:Arial,sans-serif}
#tabula h3{text-align:center}
#tabula .ievade{padding:1em;background:#2a3034;border-radius:12px 12px 0 0}
.table-wrapper{border-radius:0 0 12px 12px;overflow-x:auto;overflow-y:hidden;background-color:#2a3034;-webkit-overflow-scrolling:touch}
#tabula table{width:100%;border-collapse:collapse;background-color:transparent;border-radius:0}
#tabula table th,#tabula table td{border:1px solid #cccccc0f;padding:8px 10px;text-align:center}
.bn{border:none!important}
tbody tr:hover{background-color:#ffffff17}
#tabula input[type="number"]{width:100%;padding:5px 10px;margin-bottom:5px;font-size:1em;box-sizing:border-box;color:#6f6f6f;border-radius:12px;border:none}
#tabula button[type="submit"],#tabula button{cursor:pointer;margin-top:15px;background-color:#2a3034}
#tabula button:hover[type="submit"],#tabula button:hover{background-color:#4d5053}
#tabula input.invalid{border:1px solid red;background-color:#ffecec}
#calc-btn{margin-left:2px}
.leaf{width:16px;height:16px}
.note{font-size:.7rem;position:relative;float:right;color:var(--muted)}
.note2{font-size:.7rem;position:relative;float:right;color:var(--muted);margin:0}
.note strong{font-weight:600}
@media (max-width: 900px){.note{float:none;border-top:1px dashed rgba(255,255,255,.12);padding-top:.65rem;text-align:center}}
@media (max-width: 768px){.panel.active{padding:0}.service-panels .panel{border:0;box-shadow:none}#tabula{padding:1em 0em}#tabula table th,#tabula table td{font-size:0.8em;padding:6px 8px}#tabula input[type="number"]{font-size:1em}.leaf{display:none}}

/* How it works */
#how{scroll-margin-top:50px}
.how-it-works{padding-bottom:1rem;text-align:center}
.icon{font-size:2.5rem;color:var(--brand);margin-bottom:15px;display:block}
.steps{display:flex;flex-wrap:wrap;justify-content:center;gap:20px}
.step{background:var(--card);border:1px solid var(--b);border-radius:12px;padding:30px 20px;width:260px;box-shadow:0 4px 12px rgba(0,0,0,0.05);transition:0.3s ease}
.step:hover{transform:translateY(-5px);background-color:var(--card);box-shadow:0 4px 12px rgba(0,0,0,0.3)}
.step h5{font-size:1.1rem;margin:0 0 10px;color:#d4d5d6}
.step p{font-size:0.95rem;color:#bdbdbd;margin:0}

/* Contacts */
.contact label{display:block;margin-bottom: .375rem;font-weight: 600;}
.contact input,.contact select, .contact textarea{width:100%;padding:10px;border:1px solid var(--b);border-radius:10px;margin:4px auto;color:#555;font-size:.8em}
.contact .hp{display:none}
#contactSend{margin-top:10px}
.select {background:var(--fg)}
.form-note{margin-top:8px}
.form-note.ok{color:#0a7a1f}
.form-note.err{color:red}
.inner-section{display:grid;grid-template-columns:1fr 1fr auto;gap:3rem}
/* invalid field highlight */
.contact input.is-invalid,.contact select.is-invalid,.contact textarea.is-invalid{border-color:#b00020!important;outline-color:#b00020}
.contact-info{position:relative;top:-73px}
.contact-info strong{color:var(--muted);line-height:1.9rem;padding-right:6px;user-select:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none}

/* Footer */
.site-footer{border-top:1px solid var(--b);margin-top:40px;padding:18px 0;color:var(--muted);font-size:14px}
footer a:hover{color:var(--fg)}
.footer-grid{display:grid;grid-template-columns:1fr .1fr auto;gap:20px}
.social{display:flex;gap:12px;margin:1em 0}
.social-link{display:grid;place-items:center;width:36px;height:36px;border-radius:16px;border:1px solidvar(--b);background:var(--dk)}
.social-link:hover{background:var(--brand)}
.social-link i{font-size:1rem}
.credit{white-space:nowrap}
@media (max-width: 620px){.footer-grid{grid-template-columns:1fr}}

/* Cookies */
.cookie{position:fixed;left:0;right:0;bottom:0;background:var(--card);color:var(--fg);padding:14px}
.cookie .cookie-inner{max-width:1100px;margin:0 auto;display:flex;gap:10px;align-items:center;justify-content:space-between}
.cookie-actions{display:flex;align-items:center;gap:6px}
.cookie .btn{background:var(--fg);color:#000}
.cookie .btn.outline{background:transparent;border:1px solid var(--fg);color:var(--fg)}
#cookie-yes:hover, #cookie-no:hover{background:var(--brand);color:var(--fg)}
.cookie{position:fixed;left:0;right:0;bottom:0;z-index:9999}
.cookie-inner{max-width:1200px;margin:0 auto;padding:16px;display:flex;gap:16px;align-items:center;justify-content:space-between}
@media (max-width: 640px){.cookie-inner{flex-direction:column;align-items:flex-start;gap:8px}}
body.has-cookie{padding-bottom:88px}

/* Project managers */
.team-grid{display:grid;gap:24px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.team-grid.\32{display:flex;justify-content:center}
.p-b{padding-bottom:20px}
.team-card{text-align:center;padding:20px;max-width:320px}
.team-card img{width:100%;aspect-ratio:1/1;object-fit:cover;border-radius:16px;margin-bottom:12px}
.team-card h3{margin:10px 0 8px}
.team-card a{text-decoration:none}

/* Emoji */
img.emoji{width:1em;height:1em;vertical-align:-0.1em;margin:0 0.07em}
.emoji.big{width:1.2em;height:1.2em;vertical-align:-0.2em}

/* Gallery */
.gallery{display:grid;grid-template-columns:repeat(12,1fr);gap:12px;margin-top:1rem}
.tile {
	grid-column: span 4;
	aspect-ratio: 4/3;
	border-radius: 1rem;
	overflow: hidden;
	position: relative;
	background: linear-gradient(45deg, rgba(251,191,36,.15), rgba(16,185,129,.12));
	scale: 1;
}

.tile .cap {
	position: absolute;
	left: 10px;
	bottom: 10px;
	background: rgba(42,48,52,.7);
	padding: .35rem .6rem;
	border-radius: .7rem;
	font-size: .85rem;
	border: 1px solid rgba(148,163,184,.18);
}

@media (max-width: 900px){.tile {grid-column:span 12}}

.gallery img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
	-webkit-transition-duration: .8s;
	transition-duration: .8s;
}

.gallery img:hover {
	transform: scale(1.2);
	-webkit-transform: scale(1.2);
	-moz-transform: scale(1.2);
	-ms-transform: scale(1.2);
	-o-transform: scale(1.2);
}

/* --- Video slider --- */
.video-slider { position: relative; }
.video-slider .vs-viewport { overflow: hidden; border-radius: 14px; }
.video-slider .vs-track { display: flex; transition: transform .35s ease; will-change: transform; }
.video-slider .vs-slide { min-width: 100%; }
.video-slider .vs-video {
  width: 100%;
  aspect-ratio: 16 / 9;         /* keeps 16:9, modern browsers */
  background: #000;
  position: relative;
  overflow: hidden;
  /*border: 1px solid var(--b);*/
  border-radius: 14px;
}
.video-slider .vs-video iframe {
  width: 100%; height: 100%;
  position: absolute; inset: 0;
  border: 0;
  border-radius: 14px;
}

/* arrows */
.video-slider .vs-nav {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 40px; height: 40px; border-radius: 999px;
  border: 1px solid var(--b);
  background: #ffffff80; color: #00000080; cursor: pointer;
  display: grid; place-items: center;
  z-index: 2;
}
.vs-nav.prev{transform:translateY(-50%)rotate(180deg)}
.video-slider .vs-nav.prev{left:8px}
.video-slider .vs-nav.next{right:8px}
.video-slider .vs-nav:disabled{opacity:.4;cursor:default}

/* dots */
.video-slider .vs-dots{display:flex;gap:8px;justify-content:center;margin-top:10px}
.video-slider .vs-dots button{width:8px;height:10px;border-radius:50%;border:1px solid var(--dk);background:var(--dk);cursor:pointer;padding-inline:4px}
.video-slider .vs-dots button.is-active,
.video-slider .vs-dots button:hover.is-active{background:var(--fg);border-color:var(--fg)}
.video-slider .vs-dots button:hover{background:var(--brand);border:1px solid var(--brand)}

/* FAQ accordion – compact, answer is transparent, no divider */
.faq .accordion{ display:grid; gap:4px; }

.faq .acc-item{
  background: var(--card);
  border: 0;
  border-radius: 12px;
  overflow: hidden;
}

.faq .acc-q{
  position:relative;
  width:100%;
  text-align:left;
  padding:12px 40px 12px 14px;   /* right space for +/− */
  background: transparent;       /* card bg is on .acc-item */
  border:0;
  font-weight:600;
  cursor:pointer;
  color:var(--fg);
  font-size: .8rem;
}

.faq .acc-q::after{
  content:'+';
  position:absolute; right:14px; top:50%;
  transform:translateY(-50%);
  font-size: 1rem;
}
.faq .acc-item.open .acc-q::after{ content:'–';right: .9rem; }

/* ANSWER: no bg, no border, small padding */
.faq .acc-a{
  display:block;
  background:transparent;
  border:0;
  padding:0 14px 10px 14px;         /* compact */
  color:var(--muted,#bbb);
}
.faq .acc-a[hidden]{ display:none !important; }

/* Desktop only */
@media (min-width: 1024px) { /*give FAQ a little extra room so opening doesn’t make the footer feel jumpy */
  #faq { min-height: 380px; } /* adjust this number to tallest answer */
}

/* Mobile only */
@media (max-width:1320px){
	.hero{
		padding: 18px;
	}
}

@media (max-width: 900px) {
  .wysiwyg .inner-section,.inner-section {
    grid-template-columns: 1fr;
	gap: 1rem;
  }
  .contact-info {
	top: 0;
  }
}

@media (max-width:900px){
  .grid{grid-template-columns:1fr}
  .hamburger{display:inline-block}
  .nav{position:fixed;inset:60px 0 auto 0;background:var(--bg);border-bottom:1px solid var(--b);padding:12px;display:none;flex-direction:column}
  .nav.open{display:flex}
}

@media (max-width: 577px){.team-grid{display:flex;flex-wrap:wrap;justify-content:center}}
@media (max-width: 480px){.conduct-row{ font-size:0.88rem}.steps{gap:14px}.pdf-col{padding:5px 10px}.position{margin-top:-1px}ul{padding-left:22px}}
@media (max-width: 360px){.container{padding:12px}.tab{padding:8px 9px}.conduct-card{padding:7px}.position{margin-top:-2px}}

/* Desktop-only override design */
@media (min-width: 1270px) {
  body {
    background: url("/assets/img/hero-bg.avif") center center / cover no-repeat fixed;
  }
  .site-header {
    max-width: 1270px;
	margin: 0 auto;
  }
  .header{padding:18px 2em}
  .container {
    background: var(--bg);
  }
  .hero {
	padding: 48px 2em 16px;
	background-color: transparent;
	background-image: linear-gradient(180deg, rgba(33, 37, 41, .2) 0%, #212529 100%);
  }
  .site-footer {
    margin-top: 0;
	padding:1em;
  }
}