/* ============================================================
   site.css — Wuxi Teyoute Machinery multilingual marketing site
   Heavy-industry brand. Palette reused from the teyoute_demo.
   ============================================================ */
:root{
  --bg:#0E0E10;
  --card:#1A1B1E;
  --text:#FFFFFF;
  --muted:#A1A1AA;
  --red:#E2231A;
  --red-dark:#B91C13;
  --yellow:#F5C518;
  --border:#2A2B2F;
  --success:#22A06B;
  --radius:14px;
  --maxw:1240px;
  --sans:"Inter","Manrope","Noto Sans SC","Noto Sans","Noto Sans Devanagari",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;background:var(--bg);color:var(--text);font-family:var(--sans);
  font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none;}
img{display:block;max-width:100%;}
h1,h2,h3,h4{margin:0;font-family:"Manrope","Inter","Noto Sans SC","Noto Sans","Noto Sans Devanagari",sans-serif;line-height:1.2;letter-spacing:-0.01em;}
:lang(zh),[data-lang="zh"] h1,[data-lang="zh"] h2,[data-lang="zh"] h3{letter-spacing:0;}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.section{padding:84px 0;}
.section.alt{background:linear-gradient(180deg,#101012,#0E0E10);}
.section-head{margin-bottom:44px;max-width:70ch;}
.section-head h1,.section-head h2{font-size:clamp(28px,4vw,36px);font-weight:800;}
.section-head .intro{color:#d4d4d8;font-size:1.05rem;margin-top:14px;}
.eyebrow{display:inline-block;color:var(--yellow);font-weight:700;font-size:0.8rem;letter-spacing:0.18em;text-transform:uppercase;margin-bottom:14px;}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;}

/* ---------- BUTTONS ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;white-space:nowrap;
  border-radius:10px;cursor:pointer;border:1px solid transparent;font-family:inherit;font-size:0.98rem;line-height:1;
  transition:transform .15s ease,background .18s ease,border-color .18s ease,box-shadow .18s ease,color .18s ease;
}
.btn:active{transform:translateY(1px);}
.btn-red{background:var(--red);color:#fff;padding:13px 22px;box-shadow:0 6px 22px -8px rgba(226,35,26,0.7);}
.btn-red:hover{background:#f02c22;box-shadow:0 8px 26px -8px rgba(226,35,26,0.85);}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--border);padding:13px 22px;}
.btn-ghost:hover{border-color:var(--yellow);color:var(--yellow);}

/* ---------- NAV ---------- */
.nav{position:sticky;top:0;z-index:100;background:rgba(14,14,16,0.82);backdrop-filter:saturate(140%) blur(12px);border-bottom:1px solid var(--border);}
.nav-inner{display:flex;align-items:center;gap:18px;min-height:68px;}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:1.02rem;white-space:nowrap;}
.brand .mark{
  width:34px;height:34px;border-radius:8px;flex:none;background:linear-gradient(135deg,var(--red),var(--red-dark));
  display:grid;place-items:center;font-family:"Manrope","Noto Sans SC",sans-serif;font-weight:800;color:#fff;
  box-shadow:0 0 0 1px rgba(255,255,255,0.06) inset;
}
.brand .brand-txt{display:flex;flex-direction:column;line-height:1.1;}
.brand .brand-txt small{color:var(--muted);font-size:0.6rem;font-weight:600;letter-spacing:0.06em;}
nav.links{display:flex;gap:4px;margin-left:auto;}
nav.links a{padding:8px 12px;border-radius:8px;color:var(--muted);font-weight:600;font-size:0.92rem;white-space:nowrap;transition:color .18s,background .18s;}
nav.links a:hover{color:var(--text);background:rgba(255,255,255,0.05);}
nav.links a.is-active{color:var(--text);background:rgba(245,197,24,0.10);}
.lang-switch{display:flex;gap:2px;background:var(--card);border:1px solid var(--border);border-radius:999px;padding:3px;}
.lang-btn{
  border:0;background:transparent;color:var(--muted);font-family:inherit;font-weight:700;font-size:0.78rem;
  padding:6px 11px;border-radius:999px;cursor:pointer;transition:background .15s,color .15s;line-height:1;
}
.lang-btn:hover{color:var(--text);}
.lang-btn.active{background:var(--red);color:#fff;}
.nav-cta .btn{padding:10px 18px;}
.nav-toggle{display:none;}

/* ---------- HERO ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--border);}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(900px 480px at 78% -10%,rgba(226,35,26,0.20),transparent 60%),
    radial-gradient(700px 500px at 8% 120%,rgba(245,197,24,0.10),transparent 60%),
    repeating-linear-gradient(135deg,rgba(255,255,255,0.018) 0 2px,transparent 2px 22px);
}
.hero-inner{position:relative;padding:96px 0 88px;}
.hero h1{
  font-size:clamp(40px,6vw,64px);font-weight:800;max-width:20ch;
  background:linear-gradient(180deg,#fff,#d6d6da);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero .subhead{margin:26px 0 0;max-width:62ch;font-size:1.1rem;color:#e4e4e7;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero-cta .btn{padding:15px 26px;font-size:1.02rem;}
.badges{display:flex;flex-wrap:wrap;gap:14px;margin-top:46px;}
.badge{display:flex;gap:13px;align-items:flex-start;background:var(--card);border:1px solid var(--border);border-radius:12px;padding:15px 18px;flex:1 1 220px;min-width:210px;}
.badge .ico{width:38px;height:38px;flex:none;border-radius:9px;display:grid;place-items:center;background:rgba(245,197,24,0.12);color:var(--yellow);}
.badge .ico svg{width:20px;height:20px;}
.badge b{font-weight:700;font-size:0.96rem;display:block;}
.badge .sub{color:var(--muted);font-size:0.82rem;margin-top:3px;}

/* ---------- FEATURED STRIP ---------- */
.featured-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.fcard{position:relative;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:transform .2s,border-color .2s;display:flex;flex-direction:column;}
.fcard:hover{transform:translateY(-4px);border-color:var(--yellow);}
.fmedia{aspect-ratio:4/3;overflow:hidden;background:#0b0b0d;}
.fmedia img{width:100%;height:100%;object-fit:cover;transition:transform .4s;}
.fcard:hover .fmedia img{transform:scale(1.06);}
.fbody{padding:16px 18px 20px;flex:1;display:flex;flex-direction:column;}
.fcard h3{font-size:1.0rem;font-weight:700;}
.fcard p{color:#d4d4d8;font-size:0.88rem;margin:10px 0 0;flex:1;}
.fcard-link{margin-top:16px;width:100%;padding:10px 16px;font-size:0.9rem;}

/* ribbon */
.ribbon{position:absolute;top:14px;left:-34px;transform:rotate(-45deg);background:var(--red);color:#fff;font-weight:800;font-size:0.68rem;letter-spacing:0.10em;padding:5px 40px;box-shadow:0 4px 12px -4px rgba(0,0,0,0.6);z-index:3;}

/* ---------- FILTER TABS ---------- */
.tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:36px;}
.tab{background:var(--card);border:1px solid var(--border);color:var(--muted);padding:10px 18px;border-radius:999px;cursor:pointer;font-weight:600;font-size:0.92rem;font-family:inherit;transition:all .18s;line-height:1.25;}
.tab:hover{color:var(--text);border-color:#3a3b40;}
.tab.active{background:var(--red);border-color:var(--red);color:#fff;}

/* ---------- PRODUCT GRID ---------- */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.pcard{position:relative;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:transform .2s,border-color .2s,box-shadow .2s;}
.pcard:hover{transform:translateY(-4px);border-color:var(--yellow);box-shadow:0 18px 40px -22px rgba(0,0,0,0.8);}
.pmedia{aspect-ratio:16/11;overflow:hidden;background:#0b0b0d;position:relative;}
.pmedia img{width:100%;height:100%;object-fit:cover;transition:transform .45s;}
.pcard:hover .pmedia img{transform:scale(1.07);}
.pbody{padding:18px 20px 22px;display:flex;flex-direction:column;flex:1;}
.pcard h3{font-size:1.1rem;font-weight:700;}
.pdesc{color:#d4d4d8;font-size:0.92rem;margin:12px 0 0;}
.specs{width:100%;border-collapse:collapse;margin:16px 0 0;font-size:0.84rem;flex:1;}
.specs caption{text-align:left;font-weight:700;color:var(--text);font-size:0.78rem;letter-spacing:0.06em;text-transform:uppercase;margin-bottom:8px;}
.specs th,.specs td{text-align:left;padding:6px 0;border-bottom:1px solid var(--border);vertical-align:top;}
.specs th{color:var(--muted);font-weight:600;white-space:nowrap;width:42%;padding-right:12px;}
.specs td{color:#e4e4e7;}
.specs tr:last-child th,.specs tr:last-child td{border-bottom:none;}
.pfoot{margin-top:18px;}
.pfoot .btn{width:100%;padding:11px 18px;font-size:0.92rem;}
#no-results{color:var(--muted);text-align:center;padding:30px 0;}

/* ---------- WHY US ---------- */
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.wcard{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:26px 24px;transition:border-color .2s,transform .2s;}
.wcard:hover{border-color:var(--yellow);transform:translateY(-4px);}
.wcard .ico{width:46px;height:46px;border-radius:11px;display:grid;place-items:center;margin-bottom:16px;background:rgba(226,35,26,0.14);color:var(--red);}
.wcard .ico svg{width:24px;height:24px;}
.wcard h3{font-size:1.04rem;font-weight:700;}
.wcard p{color:#d4d4d8;font-size:0.9rem;margin:12px 0 0;}

/* ---------- FACILITY / SPLIT SECTIONS ---------- */
.split{display:grid;grid-template-columns:1.1fr 0.9fr;gap:44px;align-items:center;}
.split.rev{grid-template-columns:0.9fr 1.1fr;}
/* .rev alternates media to the RIGHT — DOM order (body, media) already does that;
   forcing order:-1 here used to cancel the alternation (audit A5-008). */
.split-media{border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);background:#0b0b0d;}
.split-media img,.split-media video{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10;display:block;}
.split-body h2{font-size:clamp(24px,3vw,32px);font-weight:800;}
.split-body p{color:#d4d4d8;font-size:1.02rem;margin:16px 0 0;}
.split-body .btn{margin-top:26px;}

/* ---------- LINES (flagship) ---------- */
.line-block{padding:64px 0;border-bottom:1px solid var(--border);}
.line-block:last-child{border-bottom:0;}

/* ---------- CTA STRIP ---------- */
.cta-strip{background:linear-gradient(120deg,rgba(226,35,26,0.14),rgba(245,197,24,0.07));border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.cta-strip .container{display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between;padding-top:54px;padding-bottom:54px;}
.cta-strip h2{font-size:clamp(24px,3.4vw,34px);font-weight:800;max-width:24ch;}

/* ---------- MEDIA GALLERY ---------- */
.media-panel[hidden]{display:none;}
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
.gtile{padding:0;border:1px solid var(--border);background:#0b0b0d;border-radius:12px;overflow:hidden;cursor:pointer;aspect-ratio:4/3;transition:transform .2s,border-color .2s;}
.gtile:hover{transform:translateY(-3px);border-color:var(--yellow);}
.gtile img{width:100%;height:100%;object-fit:cover;}
.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.vcard{margin:0;border:1px solid var(--border);border-radius:12px;overflow:hidden;background:#0b0b0d;}
.vcard video{width:100%;display:block;aspect-ratio:16/9;background:#000;object-fit:cover;}
.vcard figcaption{padding:10px 14px;font-size:0.9rem;font-weight:600;color:var(--muted);border-top:1px solid var(--border);}

/* ---------- LIGHTBOX ---------- */
.lightbox{position:fixed;inset:0;z-index:200;background:rgba(8,8,10,0.94);display:none;align-items:center;justify-content:center;padding:32px;}
.lightbox.open{display:flex;}
.lightbox .lb-img{max-width:92vw;max-height:88vh;border-radius:8px;box-shadow:0 30px 80px -20px rgba(0,0,0,0.9);object-fit:contain;}
.lb-btn{position:absolute;background:var(--card);border:1px solid var(--border);color:#fff;width:48px;height:48px;border-radius:50%;font-size:1.4rem;cursor:pointer;display:grid;place-items:center;transition:background .15s,border-color .15s;}
.lb-btn:hover{background:var(--red);border-color:var(--red);}
.lb-close{top:24px;right:24px;}
.lb-prev{left:24px;top:50%;transform:translateY(-50%);}
.lb-next{right:24px;top:50%;transform:translateY(-50%);}

/* ---------- CERTIFICATES ---------- */
.cert-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.cert-card{display:flex;gap:22px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;transition:border-color .2s;}
.cert-card:hover{border-color:var(--yellow);}
.cert-media{flex:none;width:150px;border:1px solid var(--border);border-radius:10px;overflow:hidden;background:#f3f2ee;cursor:pointer;padding:0;aspect-ratio:3/4;} /* paper-light bg: contain letterboxing reads as margin, not black bars */
.cert-media img{width:100%;height:100%;object-fit:contain;}
.cert-body{flex:1;min-width:0;}
.cert-body h3{font-size:1.06rem;font-weight:700;margin-bottom:14px;}
.cert-meta{display:grid;grid-template-columns:auto 1fr;gap:6px 14px;margin:0;font-size:0.86rem;}
.cert-meta dt{color:var(--muted);font-weight:600;white-space:nowrap;}
.cert-meta dd{margin:0;color:#e4e4e7;word-break:break-word;}
.cert-section + .cert-section{margin-top:46px;}
.cert-group-title{font-size:1.05rem;font-weight:800;letter-spacing:.02em;margin:0 0 18px;padding-bottom:12px;border-bottom:1px solid var(--border);}
.catalog-btn{margin-top:22px;display:inline-flex;align-items:center;gap:9px;}
.catalog-btn svg{width:17px;height:17px;flex:none;}

/* ---------- ABOUT TIMELINE ---------- */
.about-text{max-width:74ch;}
.about-text p{color:#d4d4d8;font-size:1.05rem;margin:0 0 16px;}
.timeline{list-style:none;margin:0;padding:0 0 0 30px;position:relative;border-left:2px solid var(--border);}
.timeline li{position:relative;padding:0 0 30px 24px;}
.timeline li:last-child{padding-bottom:0;}
.timeline li::before{content:"";position:absolute;left:-39px;top:3px;width:14px;height:14px;border-radius:50%;background:var(--red);border:3px solid var(--bg);box-shadow:0 0 0 2px var(--red);}
.timeline .t-year{font-family:"Manrope",sans-serif;font-weight:800;color:var(--yellow);font-size:0.92rem;letter-spacing:0.04em;}
.timeline .t-text{color:#e4e4e7;font-size:0.98rem;margin-top:3px;}
/* About — phased company history */
.phases{display:grid;gap:18px;}
.phase{background:var(--card);border:1px solid var(--border);border-left:3px solid var(--red);border-radius:12px;padding:22px 24px;}
.phase-head{display:flex;align-items:baseline;flex-wrap:wrap;gap:10px 14px;margin-bottom:14px;}
.phase-no{font-family:"Manrope",sans-serif;font-weight:800;font-size:1.1rem;color:var(--yellow);}
.phase-head h3{font-size:1.18rem;margin:0;}
.phase-sub{color:var(--muted);font-size:0.92rem;margin:0;width:100%;}
.phase-items{list-style:none;margin:0;padding:0;display:grid;gap:10px;}
.phase-items li{position:relative;padding-left:18px;color:#e4e4e7;font-size:0.95rem;line-height:1.6;}
.phase-items li::before{content:"▸";position:absolute;left:0;color:var(--red);font-weight:700;}
@media (min-width:760px){.phases{grid-template-columns:1fr 1fr;}}

/* ---------- CONTACT ---------- */
.contact-wrap{display:grid;grid-template-columns:1.5fr 1fr;gap:28px;align-items:start;max-width:1080px;margin-inline:auto;}
.contact-wrap>*{min-width:0;} /* grid items must shrink below content width (long ru/hi select options) */
.form-sent{text-align:center;padding:28px 8px;}
.form-sent .form-sent-ico{width:56px;height:56px;margin:0 auto 16px;border-radius:50%;background:var(--success,#22a06b);color:#fff;font-size:1.7rem;display:grid;place-items:center;}
.form-sent p{color:#e4e4e7;font-size:1.02rem;line-height:1.6;}
.form-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:32px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{display:flex;flex-direction:column;gap:7px;min-width:0;}
.field.full{grid-column:1/-1;}
.field label{font-size:0.86rem;font-weight:600;}
.field label .req{color:var(--red);margin-left:3px;}
.field input,.field select,.field textarea{width:100%;min-width:0;background:#101113;border:1px solid var(--border);border-radius:9px;color:var(--text);padding:12px 14px;font-family:inherit;font-size:0.94rem;transition:border-color .18s,box-shadow .18s;}
.field input::placeholder,.field textarea::placeholder{color:#8b8b93;}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--yellow);box-shadow:0 0 0 3px rgba(245,197,24,0.16);}
.field textarea{resize:vertical;min-height:120px;}
.form-card .btn{width:100%;margin-top:24px;padding:15px;font-size:1.02rem;}
.form-note{color:var(--muted);font-size:0.82rem;margin-top:14px;text-align:center;}
.hp-field{position:absolute!important;left:-9999px;top:auto;width:1px;height:1px;opacity:0;overflow:hidden;}
.company-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:30px;}
.company-card h3{font-size:1.16rem;font-weight:800;}
.ci-list{list-style:none;padding:0;margin:22px 0 0;display:flex;flex-direction:column;gap:18px;}
.ci-list li{display:flex;gap:13px;align-items:flex-start;}
.ci-list .ico{width:36px;height:36px;flex:none;border-radius:9px;display:grid;place-items:center;background:rgba(245,197,24,0.1);color:var(--yellow);}
.ci-list .ico svg{width:18px;height:18px;}
.ci-list .lbl{font-size:0.72rem;color:var(--muted);font-weight:600;letter-spacing:0.04em;text-transform:uppercase;}
.ci-list .val{font-size:0.96rem;font-weight:600;word-break:break-word;}
.ci-list a.val:hover{color:var(--yellow);}
.ci-list .val a{color:inherit;}
.ci-list .val a:hover{color:var(--yellow);}
.cc-sub{color:var(--muted);font-size:0.86rem;margin-top:6px;}
.ci-persons{display:flex;flex-direction:column;gap:6px;}
.map-btn{margin-top:13px;display:inline-flex;align-items:center;gap:8px;padding:9px 15px;font-size:0.86rem;}
.map-btn svg{width:15px;height:15px;flex:none;}
.foot-contact{width:100%;color:var(--muted);font-size:0.85rem;}
.foot-contact a{color:var(--muted);}
.foot-contact a:hover{color:var(--text);}

/* ---------- LANGUAGE-DEPENDENT CONTACT INFO ----------
   zh pages keep the full contact set; non-zh pages show only the
   international contact (Sales Consultant Liu · Gmail). Toggled purely
   by the <html data-lang> attribute set by i18n.js, so it works on
   language switch and on file:// with no extra JS. */
.contact-intl{display:none;}
html[data-lang]:not([data-lang="zh"]) .contact-zh{display:none;}
html[data-lang]:not([data-lang="zh"]) .contact-intl{display:revert;}

/* ---------- FOOTER ---------- */
footer.foot{border-top:1px solid var(--border);padding:40px 0;background:#0b0b0d;}
.foot-inner{display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between;}
.foot-inner .brand{font-size:0.96rem;}
.foot-links{display:flex;gap:18px;flex-wrap:wrap;}
.foot-links a{color:var(--muted);font-size:0.88rem;font-weight:500;}
.foot-links a:hover{color:var(--text);}
.copy{color:var(--muted);font-size:0.82rem;width:100%;border-top:1px solid var(--border);padding-top:18px;margin-top:6px;}

/* ---------- RESPONSIVE ---------- */
@media (max-width:1024px){
  .featured-grid{grid-template-columns:repeat(2,1fr);}
  .grid{grid-template-columns:repeat(2,1fr);}
  .why-grid{grid-template-columns:repeat(2,1fr);}
  .gallery,.video-grid{grid-template-columns:repeat(2,1fr);}
  .cert-grid{grid-template-columns:1fr;}
  .contact-wrap{grid-template-columns:1fr;}
  .split,.split.rev{grid-template-columns:1fr;gap:28px;}
  /* stacked: image always ABOVE its own text so image-text pairing stays unambiguous */
  .split.rev .split-media{order:-1;}
  nav.links a{font-size:0.88rem;padding:8px 9px;}
}
@media (max-width:768px){
  nav.links{position:absolute;top:68px;left:0;right:0;flex-direction:column;gap:2px;background:#0e0e10;border-bottom:1px solid var(--border);padding:12px 24px 18px;display:none;}
  nav.links.open{display:flex;}
  nav.links a{padding:12px 8px;}
  .nav-toggle{display:grid;place-items:center;margin-left:auto;width:42px;height:42px;background:var(--card);border:1px solid var(--border);border-radius:9px;cursor:pointer;color:#fff;}
  .lang-switch{order:3;}
  .brand .brand-txt{display:none;}
  .section{padding:60px 0;}
  .hero-inner{padding:64px 0 56px;}
}
@media (max-width:600px){
  .featured-grid,.grid,.why-grid,.gallery,.video-grid{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .container{padding:0 18px;}
  .cert-card{flex-direction:column;}
  .cert-media{width:100%;aspect-ratio:16/10;}
}
@media (max-width:420px){
  .lang-btn{padding:6px 8px;font-size:0.74rem;}
  .nav-inner{gap:10px;}
}

/* nowrap nav links need a little compression on smaller laptops (en is the widest
   full-nav language once ru/hi collapse to the burger below) */
@media (max-width:1440px){
  .nav-inner{gap:14px;}
  nav.links{gap:2px;}
  nav.links a{padding:8px 9px;font-size:0.9rem;}
}

/* RU/HI nav labels are far longer than zh/en and overflow common laptop widths
   (ru needs ~1500px) — collapse those two languages to the burger menu earlier.
   Mirrors the ≤768px mobile-menu rules, scoped by the <html data-lang> set by i18n.js. */
@media (max-width:1520px){
  html[data-lang="ru"] nav.links,html[data-lang="hi"] nav.links{position:absolute;top:68px;left:0;right:0;flex-direction:column;gap:2px;background:#0e0e10;border-bottom:1px solid var(--border);padding:12px 24px 18px;display:none;}
  html[data-lang="ru"] nav.links.open,html[data-lang="hi"] nav.links.open{display:flex;}
  html[data-lang="ru"] nav.links a,html[data-lang="hi"] nav.links a{padding:12px 8px;}
  html[data-lang="ru"] .nav-toggle,html[data-lang="hi"] .nav-toggle{display:grid;place-items:center;margin-left:auto;width:42px;height:42px;background:var(--card);border:1px solid var(--border);border-radius:9px;cursor:pointer;color:#fff;}
}

/* ---------- MOBILE NAV SCRIM + SCROLL LOCK (audit A5-013) ---------- */
.nav-scrim{position:fixed;inset:0;top:68px;z-index:90;background:rgba(8,8,10,0.6);display:none;}
body.nav-open .nav-scrim{display:block;}
body.nav-open{overflow:hidden;}

/* ---------- BACK TO TOP ---------- */
.backtop{
  position:fixed;right:22px;bottom:22px;z-index:80;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--border);background:rgba(20,20,22,0.92);color:#fff;display:grid;place-items:center;
  cursor:pointer;opacity:0;pointer-events:none;transition:opacity .25s,border-color .2s,color .2s;
  box-shadow:0 6px 20px rgba(0,0,0,0.35);
}
.backtop.show{opacity:1;pointer-events:auto;}
.backtop:hover{border-color:var(--yellow);color:var(--yellow);}
.backtop svg{width:20px;height:20px;}

/* ---------- LINES: 7-STEP PROCESS GRID (4+3 centered, audit A5-011) ---------- */
.steps-grid{display:flex;flex-wrap:wrap;justify-content:center;gap:22px;}
.steps-grid .wcard{flex:1 1 240px;min-width:230px;max-width:calc(25% - 17px);}
@media (max-width:1024px){.steps-grid .wcard{max-width:calc(50% - 11px);}}
@media (max-width:600px){.steps-grid .wcard{max-width:100%;}}

/* ---------- CERTIFICATES: MOBILE GROUP ACCORDION (audit A5-010) ---------- */
@media (max-width:768px){
  .cert-group-title{display:flex;align-items:center;justify-content:space-between;cursor:pointer;-webkit-tap-highlight-color:transparent;}
  .cert-group-title::after{content:"▾";color:var(--muted);transition:transform .2s;margin-left:12px;}
  .cert-section.collapsed .cert-group-title::after{transform:rotate(-90deg);}
  .cert-section.collapsed .cert-grid{display:none;}
}

/* ---------- 404 ---------- */
.nf-code{font-size:clamp(64px,12vw,120px);font-weight:800;color:var(--red);line-height:1;}
.nf-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px;}

/* ============================================================
   PDF / PRINT EXPORT  (cited from teyoute_demo @media print block)
   Force the dark theme to render in PDF via print-color-adjust:exact.
   ============================================================ */
@page{ size:A4; margin:0; }
@media print{
  *,*::before,*::after{
    -webkit-print-color-adjust:exact !important;
    print-color-adjust:exact !important;
    font-synthesis:none !important;
    text-rendering:geometricPrecision;
  }
  html,body{background:#0E0E10 !important;}
  .nav{position:static !important;}
  #navToggle,.nav-toggle,.nav-cta,.lang-switch{display:none !important;}
  .tab,#no-results,.lb-btn,.lightbox{display:none !important;}
  .pcard,.fcard{display:flex !important;}
  .grid,.featured-grid,.why-grid,.gallery,.video-grid{grid-template-columns:1fr 1fr !important;gap:12px !important;}
  .cert-grid,.form-grid{grid-template-columns:1fr 1fr !important;}
  .split,.split.rev{grid-template-columns:1fr 1fr !important;}
  .pcard,.fcard,.wcard,.field,.badge,.cert-card,.gtile{break-inside:avoid;page-break-inside:avoid;}
  .section-head,.hero,.ribbon,.line-block,.timeline li{break-inside:avoid;}
  .section{break-inside:auto;padding:22px 0 !important;}
  .container{padding:0 14mm !important;}
  a[href]::after{content:"" !important;}
  .hero{padding:40px 0 !important;}
}