:root {
    --blue: #437fab;
    --blue-bright: #2093d0;
    --blue-soft: #eaf5fb;
    --navy: #2b3659;
    --navy-deep: #17213f;
    --ink: #1c2847;
    --muted: #65718b;
    --line: #dce5ef;
    --surface: #ffffff;
    --page: #f4f8fc;
    --shadow: 0 24px 65px rgba(29, 55, 93, .14);
    --radius: 26px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
    color: var(--ink);
    background: var(--page);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
img { display: block; max-width: 100%; }
.container { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }

.header {
    position: sticky; top: 0; z-index: 1000;
    background: rgba(255,255,255,.88);
    border-bottom: 1px solid rgba(220,229,239,.9);
    backdrop-filter: blur(18px);
}
.nav { height: 84px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: inline-flex; align-items: center; min-width: 210px; }
.brand img { width: 206px; height: auto; }
.menu { display: flex; align-items: center; gap: 30px; color: #394661; font-size: 15px; font-weight: 650; }
.menu a { position: relative; padding: 8px 0; }
.menu a::after { content:""; position:absolute; left:0; right:100%; bottom:1px; height:2px; background:var(--blue-bright); transition:.25s; }
.menu a:hover::after { right:0; }
.nav-actions { display:flex; gap:10px; align-items:center; }
.burger { display:none; width:46px; height:46px; border:1px solid var(--line); border-radius:14px; background:#fff; cursor:pointer; }
.burger span { display:block; width:20px; height:2px; background:var(--navy); margin:5px auto; transition:.2s; }

.btn {
    display:inline-flex; align-items:center; justify-content:center; gap:9px;
    min-height:48px; padding:12px 20px; border-radius:999px;
    border:1px solid transparent; font-weight:760; cursor:pointer; transition:.24s ease;
}
.btn-primary { color:#fff; background:linear-gradient(135deg,var(--blue-bright),var(--blue)); box-shadow:0 12px 28px rgba(32,147,208,.25); }
.btn-primary:hover { transform:translateY(-2px); box-shadow:0 17px 34px rgba(32,147,208,.32); }
.btn-secondary { color:var(--navy); border-color:var(--line); background:#fff; }
.btn-secondary:hover { transform:translateY(-2px); border-color:#9bbbd0; }

.hero {
    position:relative; overflow:hidden; padding:86px 0 80px;
    background:
            radial-gradient(circle at 13% 18%, rgba(32,147,208,.16), transparent 30%),
            radial-gradient(circle at 83% 14%, rgba(67,127,171,.18), transparent 29%),
            linear-gradient(145deg,#fff 4%,#eef7fc 55%,#f9fbfe 100%);
}
.hero::before {
    content:""; position:absolute; inset:0; opacity:.45; pointer-events:none;
    background-image: linear-gradient(rgba(43,54,89,.045) 1px, transparent 1px), linear-gradient(90deg, rgba(43,54,89,.045) 1px, transparent 1px);
    background-size:44px 44px; mask-image:linear-gradient(to bottom,black,transparent 88%);
}
.hero-grid { position:relative; display:grid; grid-template-columns:1.06fr .94fr; gap:58px; align-items:center; }
.badge { display:inline-flex; align-items:center; gap:9px; margin-bottom:22px; padding:8px 14px; border:1px solid #cbe4f3; border-radius:999px; background:rgba(255,255,255,.8); color:var(--blue); font-weight:760; font-size:14px; }
.badge::before { content:""; width:8px; height:8px; border-radius:50%; background:var(--blue-bright); box-shadow:0 0 0 5px rgba(32,147,208,.12); }
.hero h1 { max-width:760px; margin-bottom:22px; font-size:clamp(40px,5.5vw,70px); line-height:1.035; letter-spacing:-2.5px; color:var(--navy-deep); }
.hero h1 span { color:var(--blue-bright); }
.hero-copy { max-width:650px; margin-bottom:30px; color:var(--muted); font-size:19px; }
.hero-buttons { display:flex; flex-wrap:wrap; gap:13px; margin-bottom:34px; }
.proof { display:grid; grid-template-columns:repeat(3,1fr); gap:12px; max-width:690px; }
.proof-item { min-height:91px; padding:17px 17px 15px; border:1px solid rgba(203,220,233,.9); border-radius:18px; background:rgba(255,255,255,.78); box-shadow:0 12px 26px rgba(33,68,104,.06); }
.proof-item strong { display:block; margin-bottom:3px; color:var(--navy); font-size:16px; }
.proof-item span { color:var(--muted); font-size:13px; line-height:1.35; }

.hero-panel {
    position:relative; min-height:530px; overflow:hidden; border-radius:38px; color:#fff;
    background:linear-gradient(145deg,#1d2b52,#2d5278 58%,#2699cd);
    box-shadow:0 34px 80px rgba(31,55,91,.27);
}
.hero-panel::before { content:""; position:absolute; width:340px; height:340px; top:-140px; right:-90px; border-radius:50%; border:1px solid rgba(255,255,255,.18); box-shadow:0 0 0 55px rgba(255,255,255,.045),0 0 0 110px rgba(255,255,255,.025); }
.hero-panel::after { content:""; position:absolute; inset:auto -55px -85px auto; width:250px; height:250px; border-radius:50%; background:rgba(255,255,255,.06); }
.panel-top { position:relative; z-index:2; display:flex; justify-content:space-between; align-items:center; padding:28px 30px 0; font-size:13px; color:rgba(255,255,255,.78); }
.status { display:inline-flex; align-items:center; gap:8px; }
.status i { width:8px; height:8px; border-radius:50%; background:#70f0bf; box-shadow:0 0 0 6px rgba(112,240,191,.12); }
.chem-mark { position:absolute; z-index:2; left:50%; top:47%; width:215px; transform:translate(-50%,-50%); filter:brightness(0) invert(1); opacity:.98; }
.orbit { position:absolute; z-index:1; left:50%; top:47%; width:320px; height:320px; border:1px solid rgba(255,255,255,.17); border-radius:50%; transform:translate(-50%,-50%); }
.orbit::before,.orbit::after { content:""; position:absolute; border-radius:50%; background:#fff; box-shadow:0 0 22px rgba(255,255,255,.85); }
.orbit::before { width:11px; height:11px; left:28px; top:64px; }
.orbit::after { width:8px; height:8px; right:20px; bottom:83px; }
.panel-label { position:absolute; z-index:3; left:30px; right:30px; bottom:28px; display:grid; grid-template-columns:1fr 1fr; gap:12px; }
.metric { padding:16px; border:1px solid rgba(255,255,255,.18); border-radius:18px; background:rgba(255,255,255,.11); backdrop-filter:blur(12px); }
.metric b { display:block; margin-bottom:3px; font-size:15px; }
.metric span { color:rgba(255,255,255,.75); font-size:12px; }

section { padding:86px 0; }
.section-head { max-width:760px; margin-bottom:42px; }
.section-head.center { margin-inline:auto; text-align:center; }
.eyebrow { margin-bottom:10px; color:var(--blue); font-size:13px; font-weight:820; letter-spacing:1.55px; text-transform:uppercase; }
h2 { margin-bottom:15px; color:var(--navy-deep); font-size:clamp(31px,4vw,48px); line-height:1.1; letter-spacing:-1.3px; }
.section-head p { color:var(--muted); font-size:18px; }

.advantages { position:relative; }
.feature-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:18px; }
.feature { min-height:255px; padding:26px; border:1px solid var(--line); border-radius:var(--radius); background:#fff; box-shadow:0 14px 34px rgba(33,64,99,.06); transition:.25s; }
.feature:hover { transform:translateY(-6px); box-shadow:var(--shadow); }
.feature-icon { display:grid; place-items:center; width:54px; height:54px; margin-bottom:20px; border-radius:17px; color:var(--blue); background:var(--blue-soft); font-size:25px; font-weight:900; }
.feature h3 { margin-bottom:10px; color:var(--navy); font-size:20px; }
.feature p { color:var(--muted); font-size:15px; }

.about { background:#fff; }
.about-grid { display:grid; grid-template-columns:.92fr 1.08fr; gap:52px; align-items:center; }
.factory-card { position:relative; min-height:500px; overflow:hidden; border-radius:34px; background:linear-gradient(155deg,#d8eef9,#f4faff 52%,#b9dcf0); box-shadow:var(--shadow); }
.factory-card::before { content:""; position:absolute; left:0; right:0; bottom:0; height:62%; background:linear-gradient(135deg,#243254,#3c6383); clip-path:polygon(0 33%,18% 33%,18% 12%,39% 12%,39% 30%,54% 30%,54% 0,76% 0,76% 26%,100% 26%,100% 100%,0 100%); }
.factory-card::after { content:""; position:absolute; left:14%; right:14%; bottom:13%; height:20%; background:repeating-linear-gradient(90deg,rgba(255,255,255,.9) 0 26px,rgba(32,147,208,.9) 26px 52px); border:9px solid #fff; box-shadow:0 12px 35px rgba(10,31,61,.24); }
.factory-badge { position:absolute; top:28px; left:28px; z-index:2; padding:14px 16px; border:1px solid rgba(255,255,255,.65); border-radius:18px; background:rgba(255,255,255,.78); backdrop-filter:blur(12px); }
.factory-badge strong { display:block; color:var(--navy); }
.factory-badge span { color:var(--muted); font-size:13px; }
.tower { position:absolute; z-index:2; right:18%; bottom:24%; width:48px; height:190px; border-radius:26px 26px 8px 8px; background:linear-gradient(90deg,#f9fdff,#c8e1ee); box-shadow:0 16px 30px rgba(8,30,59,.18); }
.tower::before { content:""; position:absolute; top:-18px; left:6px; width:36px; height:36px; border-radius:50%; background:#fff; }
.tower::after { content:""; position:absolute; inset:32px 11px 15px; border-radius:12px; background:repeating-linear-gradient(to bottom,var(--blue) 0 10px,transparent 10px 22px); }
.about-copy > p { color:var(--muted); font-size:18px; }
.check-list { display:grid; gap:17px; margin-top:26px; }
.check-item { display:flex; gap:14px; align-items:flex-start; }
.check { flex:0 0 30px; display:grid; place-items:center; width:30px; height:30px; border-radius:50%; color:#fff; background:linear-gradient(135deg,var(--blue-bright),var(--blue)); font-weight:900; }
.check-item strong { display:block; margin-bottom:3px; color:var(--navy); }
.check-item p { color:var(--muted); font-size:15px; }

.catalog-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
.product { overflow:hidden; border:1px solid var(--line); border-radius:27px; background:#fff; box-shadow:0 14px 34px rgba(33,64,99,.06); transition:.25s; }
.product:hover { transform:translateY(-5px); box-shadow:var(--shadow); }
.product-visual { position:relative; display:grid; place-items:center; min-height:190px; overflow:hidden; background:linear-gradient(145deg,#edf8fd,#cbe9f7); }

.product-visual span { position:relative; z-index:1; font-size:62px; filter:drop-shadow(0 12px 14px rgba(43,54,89,.12)); }
.product-body { padding:24px; }
.product h3 { margin-bottom:8px; color:var(--navy); font-size:21px; }
.product p { min-height:72px; margin-bottom:17px; color:var(--muted); font-size:15px; }
.tags { display:flex; flex-wrap:wrap; gap:7px; }
.tag { padding:6px 10px; border-radius:999px; background:var(--blue-soft); color:#346a91; font-size:12px; font-weight:760; }

.production { background:linear-gradient(180deg,#f4f8fc,#fff); }
.steps { display:grid; grid-template-columns:repeat(4,1fr); gap:18px; counter-reset:step; }
.step { position:relative; min-height:235px; padding:27px; border:1px solid var(--line); border-radius:24px; background:#fff; }
.step::before { counter-increment:step; content:"0" counter(step); display:grid; place-items:center; width:50px; height:50px; margin-bottom:24px; border-radius:16px; color:#fff; background:linear-gradient(135deg,var(--navy),var(--blue)); font-weight:850; }
.step h3 { margin-bottom:8px; color:var(--navy); }
.step p { color:var(--muted); font-size:15px; }

.cta { padding-top:0; }
.cta-box { position:relative; overflow:hidden; display:grid; grid-template-columns:1fr auto; gap:32px; align-items:center; padding:53px; border-radius:36px; color:#fff; background:linear-gradient(135deg,var(--navy-deep),#2f5175 62%,var(--blue-bright)); box-shadow:var(--shadow); }
.cta-box::after { content:""; position:absolute; width:330px; height:330px; right:-135px; top:-135px; border:1px solid rgba(255,255,255,.2); border-radius:50%; box-shadow:0 0 0 55px rgba(255,255,255,.045),0 0 0 110px rgba(255,255,255,.025); }
.cta-box > * { position:relative; z-index:1; }
.cta-box h2 { color:#fff; margin-bottom:10px; }
.cta-box p { max-width:720px; color:rgba(255,255,255,.8); font-size:18px; }
.cta-box .btn { background:#fff; color:var(--navy); }

.contacts { background:#fff; }
.contact-grid { display:grid; grid-template-columns:.88fr 1.12fr; gap:26px; }
.contact-card, form { border:1px solid var(--line); border-radius:28px; background:var(--page); padding:30px; }
.contact-row { padding:17px 0; border-bottom:1px solid var(--line); }
.contact-row:first-child { padding-top:0; }
.contact-row:last-child { border-bottom:0; padding-bottom:0; }
.contact-row strong { display:block; margin-bottom:3px; color:var(--navy); }
.contact-row span,.contact-row a { color:var(--muted); }
.contact-row a:hover { color:var(--blue); }
form { display:grid; gap:13px; }
.form-row { display:grid; grid-template-columns:1fr 1fr; gap:13px; }
input,textarea,select { width:100%; padding:15px 16px; border:1px solid var(--line); border-radius:14px; outline:none; color:var(--ink); background:#fff; }
input:focus,textarea:focus,select:focus { border-color:var(--blue-bright); box-shadow:0 0 0 4px rgba(32,147,208,.11); }
textarea { min-height:118px; resize:vertical; }
.form-note { color:var(--muted); font-size:12px; }

.footer { padding:34px 0; color:rgba(255,255,255,.75); background:var(--navy-deep); }
.footer-inner { display:flex; align-items:center; justify-content:space-between; gap:20px; flex-wrap:wrap; font-size:14px; }
.footer-brand { display:flex; align-items:center; gap:13px; }
.footer-brand img { width:150px; filter:brightness(0) invert(1); opacity:.93; }
.footer a { color:#fff; font-weight:700; }

.reveal { opacity:0; transform:translateY(22px); transition:opacity .65s ease,transform .65s ease; }
.reveal.active { opacity:1; transform:none; }

@media (max-width: 1000px) {
    .menu,.nav-actions { display:none; }
    .burger { display:block; }
    .menu.active { position:absolute; top:84px; left:0; right:0; display:grid; gap:0; padding:10px 20px 18px; background:#fff; border-bottom:1px solid var(--line); box-shadow:0 18px 30px rgba(35,55,85,.09); }
    .menu.active a { padding:14px 0; border-bottom:1px solid var(--line); }
    .hero-grid,.about-grid,.contact-grid,.cta-box { grid-template-columns:1fr; }
    .hero-panel { min-height:490px; }
    .feature-grid,.steps { grid-template-columns:repeat(2,1fr); }
    .catalog-grid { grid-template-columns:repeat(2,1fr); }
    .cta-box .btn { justify-self:start; }
}
@media (max-width: 640px) {
    .container { width:min(100% - 28px,1180px); }
    .nav { height:74px; }
    .brand img { width:170px; }
    .menu.active { top:74px; }
    .hero { padding:58px 0 60px; }
    .hero h1 { font-size:42px; letter-spacing:-1.6px; }
    .hero-copy { font-size:17px; }
    .proof,.feature-grid,.catalog-grid,.steps,.form-row,.panel-label { grid-template-columns:1fr; }
    .proof-item { min-height:auto; }
    .hero-panel { min-height:520px; }
    .chem-mark { width:175px; top:41%; }
    .orbit { width:270px; height:270px; top:41%; }
    section { padding:64px 0; }
    .factory-card { min-height:420px; }
    .product p { min-height:auto; }
    .cta-box { padding:34px 24px; }
    .btn { width:100%; }
    .hero-buttons { width:100%; }
    .footer-inner { align-items:flex-start; flex-direction:column; }
}

.vid_logo{
    width: 170px;
    height: 170px;
    border-radius: 50%;
    background: rgba(255,255,255,.56);
    display: flex;
    justify-content: center;
    align-items: center;
}

.vid_logo img{
    width: 100px;
    height: auto;
}