/* =========================================================
   VENTURI AIR BLOWER — Global stylesheet
   Industrial · Precise · Modern
   ========================================================= */

:root{
  --navy:#0B1B2B;
  --navy-2:#132a42;
  --steel:#1E3A5F;
  --accent:#E87722;          /* industrial orange */
  --accent-2:#ffb547;
  --blue:#1D6FB8;
  --bg:#F4F6F9;
  --white:#ffffff;
  --text:#1a2330;
  --muted:#5a6674;
  --border:#dfe4eb;
  --shadow:0 6px 24px rgba(11,27,43,0.08);
  --shadow-lg:0 18px 50px rgba(11,27,43,0.14);
  --radius:10px;
  --radius-sm:6px;
  --max:1200px;
  --font:'Inter','Segoe UI','Helvetica Neue',Arial,sans-serif;
  --mono:'JetBrains Mono','Consolas',monospace;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  color:var(--text);
  background:var(--bg);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s}
ul{list-style:none}

.container{max-width:var(--max);margin:0 auto;padding:0 24px}
.eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:2px;
  text-transform:uppercase;
  color:var(--accent);
  font-weight:700;
  margin-bottom:12px;
}

/* =========================================================
   TOP BAR
   ========================================================= */
.topbar{
  background:var(--navy);
  color:#c8d4e2;
  font-size:13px;
  padding:8px 0;
  border-bottom:1px solid #1a2f47;
}
.topbar-inner{display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between}
.topbar span{white-space:nowrap}

/* =========================================================
   HEADER / NAV
   ========================================================= */
.header{
  background:var(--white);
  border-bottom:1px solid var(--border);
  position:sticky;top:0;z-index:100;
  box-shadow:0 2px 0 rgba(0,0,0,.02);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:16px 24px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;color:var(--navy)}
.logo-icon{
  width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  color:#fff;border-radius:10px;font-size:22px;
  box-shadow:0 4px 14px rgba(232,119,34,.35);
}
.logo-text em{font-style:normal;font-weight:500;color:var(--muted);display:block;font-size:11px;letter-spacing:2px}

.mainnav > ul{display:flex;gap:4px;align-items:center}
.mainnav li{position:relative}
.mainnav a{
  padding:10px 14px;
  display:block;
  font-weight:500;
  font-size:15px;
  color:var(--text);
  border-radius:6px;
}
.mainnav a:hover,.mainnav a.active{color:var(--accent);background:#fff4ea}
.mainnav .cta{
  background:var(--accent);
  color:#fff;
  padding:10px 20px;
  margin-left:8px;
}
.mainnav .cta:hover{background:#d06716;color:#fff}

.has-drop .dropdown{
  position:absolute;
  top:100%;left:0;
  min-width:200px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:8px;
  box-shadow:var(--shadow);
  padding:8px;
  opacity:0;visibility:hidden;
  transform:translateY(6px);
  transition:all .2s ease;
}
.has-drop:hover .dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.has-drop .dropdown a{padding:9px 12px;font-size:14px}

.burger{
  display:none;
  background:none;border:0;font-size:26px;color:var(--navy);cursor:pointer;
}

/* =========================================================
   HERO
   ========================================================= */
.hero{
  background:
    radial-gradient(circle at 85% 15%,rgba(232,119,34,.18),transparent 50%),
    radial-gradient(circle at 10% 85%,rgba(29,111,184,.14),transparent 45%),
    linear-gradient(135deg,#0B1B2B 0%,#132a42 100%);
  color:#fff;
  padding:80px 0;
  position:relative;
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,0.035) 1px,transparent 1px);
  background-size:50px 50px;
  pointer-events:none;
}
.hero-inner{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;position:relative;z-index:1}
.hero-copy .eyebrow{color:var(--accent-2)}
.hero h1{
  font-size:clamp(32px,4vw,52px);
  line-height:1.1;
  font-weight:800;
  margin-bottom:20px;
  letter-spacing:-1px;
}
.lead{font-size:17px;color:#c8d4e2;margin-bottom:28px;max-width:520px}

.hero-btns{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:40px}
.btn{
  display:inline-block;
  padding:13px 26px;
  border-radius:8px;
  font-weight:600;
  font-size:15px;
  transition:all .2s;
  cursor:pointer;
  border:0;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 20px rgba(232,119,34,.4)}
.btn-primary:hover{background:#d06716;transform:translateY(-2px);color:#fff}
.btn-ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.35)}
.btn-ghost:hover{background:rgba(255,255,255,.1);border-color:#fff;color:#fff}

.hero-stats{display:flex;gap:40px;flex-wrap:wrap}
.hero-stats li strong{display:block;font-size:28px;color:var(--accent-2);font-weight:800;line-height:1}
.hero-stats li span{font-size:13px;color:#95a4b5;margin-top:4px;display:block}

/* Video frame */
.hero-media{position:relative}
.video-frame{
  background:#000;
  border-radius:12px;
  overflow:hidden;
  box-shadow:var(--shadow-lg),0 0 0 1px rgba(255,255,255,.1);
  aspect-ratio:16/10;
  position:relative;
}
.video-frame video{width:100%;height:100%;object-fit:cover;background:#000}
.video-fallback{
  position:absolute;inset:0;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#1E3A5F,#0B1B2B);
  color:#fff;text-align:center;padding:24px;
  gap:16px;
}
.video-fallback .play-icon{
  width:72px;height:72px;border-radius:50%;
  background:var(--accent);
  display:flex;align-items:center;justify-content:center;
  font-size:28px;color:#fff;
  box-shadow:0 8px 30px rgba(232,119,34,.5);
}
.video-fallback p{font-size:14px;color:#c8d4e2;max-width:280px}
.video-fallback code{background:rgba(255,255,255,.1);padding:2px 8px;border-radius:4px;color:var(--accent-2);font-family:var(--mono);font-size:13px}

/* =========================================================
   TRUST BAR
   ========================================================= */
.trust{padding:30px 0;background:#fff;border-bottom:1px solid var(--border)}
.trust-title{text-align:center;color:var(--muted);font-size:13px;letter-spacing:1px;text-transform:uppercase;margin-bottom:16px;font-weight:600}
.trust-flags{display:flex;flex-wrap:wrap;gap:32px;justify-content:center}
.trust-flags span{font-size:15px;color:var(--text);font-weight:500}

/* =========================================================
   SECTIONS
   ========================================================= */
.section{padding:80px 0}
.section-dark{background:var(--navy);color:#e6ecf3}
.section-head{max-width:720px;margin:0 auto 56px;text-align:center}
.section-head h2{font-size:clamp(28px,3vw,40px);line-height:1.2;color:var(--navy);margin-bottom:14px;letter-spacing:-.5px}
.section-head p{color:var(--muted);font-size:16px}
.section-head.light h2{color:#fff}
.section-head.light p{color:#c8d4e2}
.section-head.light .eyebrow{color:var(--accent-2)}

/* =========================================================
   PRODUCT GRID
   ========================================================= */
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pcard{
  background:#fff;
  padding:30px 24px;
  border-radius:12px;
  border:1px solid var(--border);
  transition:all .25s;
  display:block;
  position:relative;
  overflow:hidden;
}
.pcard::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--accent),var(--accent-2));
  transform:scaleX(0);transform-origin:left;transition:transform .3s;
}
.pcard:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px);border-color:transparent}
.pcard:hover::before{transform:scaleX(1)}
.pcard-img{
  width:100%;
  aspect-ratio:4/5;
  background:#ffffff;
  border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-size:54px;color:var(--steel);
  margin-bottom:20px;
  overflow:hidden;
  position:relative;
  border:1px solid #eef1f5;
}
.pcard-img img{
  width:100%;height:100%;
  object-fit:contain;
  padding:12px;
  display:block;
  transition:transform .4s ease;
}
.pcard:hover .pcard-img img{transform:scale(1.04)}
.pcard-img-fallback{
  font-size:54px;color:var(--steel);
  background:linear-gradient(135deg,#e8eef5,#f7f9fc);
}
.pcard-img.has-fallback{
  background:linear-gradient(135deg,#e8eef5,#f7f9fc);
}
.pcard h3{font-size:26px;color:var(--navy);margin-bottom:6px;font-weight:800;letter-spacing:-.5px}
.pcard-meta{font-family:var(--mono);font-size:12px;color:var(--accent);margin-bottom:12px;text-transform:uppercase;letter-spacing:.5px}
.pcard p{color:var(--muted);font-size:14px;margin-bottom:16px}
.pcard-link{color:var(--accent);font-weight:600;font-size:14px}

/* =========================================================
   FEATURES (dark section)
   ========================================================= */
.feat-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
.feat{
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.08);
  border-radius:12px;
  padding:28px 20px;
  transition:all .2s;
}
.feat:hover{background:rgba(255,255,255,.07);transform:translateY(-3px);border-color:rgba(232,119,34,.35)}
.feat-num{
  font-family:var(--mono);font-size:13px;color:var(--accent-2);
  margin-bottom:16px;font-weight:700;letter-spacing:2px;
}
.feat h4{color:#fff;font-size:17px;margin-bottom:10px;font-weight:700}
.feat p{color:#a7b5c6;font-size:14px;line-height:1.55}

/* =========================================================
   APPLICATION GRID
   ========================================================= */
.app-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.app-card{
  background:#fff;
  border:1px solid var(--border);
  border-radius:12px;
  padding:28px 20px;
  text-align:center;
  transition:all .2s;
  display:block;
}
.app-card:hover{border-color:var(--accent);transform:translateY(-3px);box-shadow:var(--shadow)}
.app-ico{font-size:38px;display:block;margin-bottom:12px}
.app-card h4{color:var(--navy);font-size:16px;margin-bottom:8px;font-weight:700}
.app-card p{color:var(--muted);font-size:13px;line-height:1.5}

/* =========================================================
   CTA STRIP
   ========================================================= */
.cta-strip{
  background:linear-gradient(135deg,var(--accent) 0%,#d06716 100%);
  color:#fff;padding:56px 0;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.cta-strip h3{font-size:26px;margin-bottom:6px;font-weight:800}
.cta-strip p{color:rgba(255,255,255,.9);font-size:15px}
.cta-strip .btn-primary{background:#fff;color:var(--accent);box-shadow:0 6px 20px rgba(0,0,0,.2)}
.cta-strip .btn-primary:hover{background:#fff4ea;color:var(--accent)}

/* =========================================================
   FOOTER
   ========================================================= */
.footer{background:var(--navy);color:#a7b5c6;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-logo{font-size:20px;font-weight:800;color:#fff;margin-bottom:16px;letter-spacing:1px}
.footer p{font-size:14px;margin-bottom:6px;line-height:1.7}
.footer h5{color:#fff;font-size:14px;text-transform:uppercase;letter-spacing:1.5px;margin-bottom:18px;font-weight:700}
.fmenu li{margin-bottom:8px}
.fmenu a{color:#a7b5c6;font-size:14px;transition:color .15s}
.fmenu a:hover{color:var(--accent-2)}
.fmenu.lang{columns:2;column-gap:8px}
.fmenu.lang li{break-inside:avoid}
.footer-bar{
  border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0;font-size:13px;color:#7a8799;
}
.footer-bar a{color:var(--accent-2)}

/* =========================================================
   PAGE HEADER (inner pages)
   ========================================================= */
.page-header{
  background:linear-gradient(135deg,var(--navy),var(--steel));
  color:#fff;padding:60px 0;
  position:relative;overflow:hidden;
}
.page-header::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,0.03) 1px,transparent 1px);
  background-size:40px 40px;
}
.page-header-inner{position:relative;z-index:1}
.page-header h1{font-size:clamp(30px,4vw,44px);font-weight:800;margin-bottom:10px;letter-spacing:-.5px}
.page-header p{color:#c8d4e2;font-size:16px;max-width:640px}
.breadcrumb{font-size:13px;color:#95a4b5;margin-bottom:16px;letter-spacing:.5px}
.breadcrumb a{color:var(--accent-2)}

/* =========================================================
   PRODUCT DETAIL
   ========================================================= */
.product-layout{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.pd-media{position:sticky;top:90px}
.pd-visual{
  background:#ffffff;
  border-radius:16px;
  aspect-ratio:4/5;
  display:flex;align-items:center;justify-content:center;
  font-size:140px;color:var(--steel);
  border:1px solid var(--border);
  position:relative;overflow:hidden;
}
.pd-visual img{
  width:100%;height:100%;
  object-fit:contain;
  padding:20px;
  display:block;
}
.pd-visual.has-fallback{
  padding:60px 40px;
  background:linear-gradient(135deg,#f0f4fa,#e6ecf3);
}
.pd-visual::before{
  content:attr(data-label);
  position:absolute;top:20px;left:20px;
  font-family:var(--mono);font-size:12px;color:var(--accent);
  font-weight:600;letter-spacing:1.5px;
  z-index:2;
  background:rgba(255,255,255,.92);
  padding:4px 10px;border-radius:4px;
}
.pd-info h1{font-size:40px;font-weight:800;color:var(--navy);margin-bottom:8px;letter-spacing:-1px}
.pd-tagline{font-size:17px;color:var(--muted);margin-bottom:28px;line-height:1.6}
.pd-highlights{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:32px}
.pd-highlight{
  background:#fff;border:1px solid var(--border);border-radius:10px;padding:14px 16px;
}
.pd-highlight strong{display:block;font-size:22px;color:var(--navy);font-weight:800}
.pd-highlight span{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:1px}

.spec-table{width:100%;border-collapse:collapse;margin:20px 0;background:#fff;border-radius:10px;overflow:hidden;border:1px solid var(--border)}
.spec-table th,.spec-table td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--border);font-size:14px}
.spec-table th{background:#f7f9fc;color:var(--navy);font-weight:700;font-size:13px;text-transform:uppercase;letter-spacing:.5px}
.spec-table tr:last-child td{border-bottom:0}
.spec-table td:first-child{font-weight:600;color:var(--navy);width:40%}

.data-tables{margin-top:56px}
.data-tables h2{font-size:26px;color:var(--navy);margin-bottom:8px;font-weight:800;letter-spacing:-.5px}
.data-tables p{color:var(--muted);margin-bottom:24px}
.data-table-wrap{overflow-x:auto;margin-bottom:28px;border:1px solid var(--border);border-radius:10px;background:#fff}
.data-table{width:100%;border-collapse:collapse;min-width:600px}
.data-table th,.data-table td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--border);font-size:14px;white-space:nowrap}
.data-table th{background:var(--navy);color:#fff;font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.5px}
.data-table th.group{background:var(--accent);text-align:center}
.data-table tr:last-child td{border-bottom:0}
.data-table td:first-child{font-weight:700;color:var(--navy)}
.data-table tbody tr:hover{background:#f7f9fc}

/* Section title pattern for inner pages */
.section-title{
  font-size:26px;color:var(--navy);margin:40px 0 16px;font-weight:800;
  padding-left:14px;border-left:4px solid var(--accent);
}

/* Product video block on detail pages */
.product-video{
  background:#000;border-radius:12px;overflow:hidden;
  box-shadow:var(--shadow);margin:24px 0;
  aspect-ratio:16/9;position:relative;
}
.product-video video{width:100%;height:100%;object-fit:cover}
.product-video .video-fallback{background:linear-gradient(135deg,#1E3A5F,#0B1B2B)}

/* =========================================================
   PRODUCT GALLERY (4 thumbnails + lightbox)
   ========================================================= */
.pd-gallery{margin:20px 0 24px}
.pd-gallery-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:10px;
}
.pd-thumb{
  border:1px solid var(--border);
  border-radius:8px;
  background:linear-gradient(135deg,#f0f4fa,#e6ecf3);
  aspect-ratio:1/1;
  overflow:hidden;
  padding:0;cursor:pointer;
  position:relative;
  transition:all .2s;
  display:flex;align-items:center;justify-content:center;
  font-size:28px;color:var(--steel);
}
.pd-thumb:hover{
  border-color:var(--accent);
  transform:translateY(-2px);
  box-shadow:var(--shadow);
}
.pd-thumb::after{
  content:"⤢";
  position:absolute;top:6px;right:8px;
  width:24px;height:24px;
  background:rgba(11,27,43,0.75);color:#fff;
  border-radius:4px;
  display:flex;align-items:center;justify-content:center;
  font-size:13px;
  opacity:0;transition:opacity .2s;
}
.pd-thumb:hover::after{opacity:1}
.pd-thumb img{
  width:100%;height:100%;
  object-fit:cover;
  display:block;
}
.pd-thumb.has-fallback{
  font-size:28px;color:var(--muted);
}
.pd-thumb.has-fallback::after{display:none}
.pd-gallery-hint{
  text-align:center;font-size:12px;color:var(--muted);
  margin-top:10px;font-style:italic;
}

/* Lightbox overlay */
.lightbox{
  position:fixed;inset:0;
  background:rgba(11,27,43,0.95);
  display:none;
  align-items:center;justify-content:center;
  z-index:1000;
  padding:40px 60px;
}
.lightbox.open{display:flex}
.lightbox-content{
  max-width:100%;max-height:100%;
  display:flex;flex-direction:column;align-items:center;gap:14px;
}
.lightbox-content img{
  max-width:90vw;max-height:80vh;
  object-fit:contain;
  border-radius:8px;
  box-shadow:0 20px 60px rgba(0,0,0,0.5);
}
.lightbox-caption{
  color:#fff;font-size:14px;letter-spacing:.5px;
  font-family:var(--mono);
}
.lightbox-close,.lightbox-prev,.lightbox-next{
  position:absolute;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.2);
  color:#fff;
  width:48px;height:48px;
  border-radius:50%;
  font-size:22px;
  cursor:pointer;
  transition:all .15s;
  display:flex;align-items:center;justify-content:center;
}
.lightbox-close:hover,.lightbox-prev:hover,.lightbox-next:hover{
  background:var(--accent);border-color:var(--accent);
}
.lightbox-close{top:20px;right:20px;font-size:28px;line-height:1}
.lightbox-prev{left:20px;top:50%;transform:translateY(-50%)}
.lightbox-next{right:20px;top:50%;transform:translateY(-50%)}

@media (max-width:768px){
  .lightbox{padding:20px}
  .lightbox-close{top:12px;right:12px;width:40px;height:40px;font-size:22px}
  .lightbox-prev,.lightbox-next{width:40px;height:40px;font-size:18px}
  .lightbox-prev{left:8px}
  .lightbox-next{right:8px}
}

/* =========================================================
   GENERIC CONTENT PAGE
   ========================================================= */
.content-page{padding:64px 0}
.content-page .content{max-width:820px;margin:0 auto}
.content-page h2{font-size:28px;color:var(--navy);margin:40px 0 14px;letter-spacing:-.5px}
.content-page h3{font-size:20px;color:var(--navy);margin:28px 0 10px}
.content-page p{color:var(--text);margin-bottom:16px;font-size:16px;line-height:1.75}
.content-page ul{margin:16px 0 20px 22px;list-style:disc}
.content-page ul li{margin-bottom:8px;color:var(--text)}
.content-page .lead{color:var(--muted);font-size:18px;margin-bottom:24px}

.callout{
  background:#fff4ea;border-left:4px solid var(--accent);
  padding:18px 22px;border-radius:8px;margin:24px 0;
}
.callout strong{color:var(--navy)}

/* =========================================================
   APPLICATION HERO (for app pages)
   ========================================================= */
.app-hero{
  background:linear-gradient(135deg,var(--navy),#1E3A5F);
  color:#fff;padding:72px 0;position:relative;overflow:hidden;
}
.app-hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,0.03) 1px,transparent 1px);
  background-size:40px 40px;
}
.app-hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.5fr 1fr;gap:40px;align-items:center}
.app-hero h1{font-size:clamp(32px,4vw,46px);font-weight:800;letter-spacing:-1px;margin-bottom:14px}
.app-hero .ico-big{font-size:180px;text-align:center;opacity:.3}

/* =========================================================
   CONTACT
   ========================================================= */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px}
.contact-info h3{font-size:20px;color:var(--navy);margin-bottom:18px}
.contact-item{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--border)}
.contact-item .ico{font-size:22px;color:var(--accent);flex-shrink:0}
.contact-item strong{color:var(--navy);display:block;font-size:14px;margin-bottom:2px}
.contact-item span{color:var(--muted);font-size:14px}

.contact-form{background:#fff;padding:32px;border-radius:12px;border:1px solid var(--border);box-shadow:var(--shadow)}
.contact-form label{display:block;font-size:13px;font-weight:600;color:var(--navy);margin-bottom:6px;text-transform:uppercase;letter-spacing:.5px}
.contact-form input,.contact-form textarea,.contact-form select{
  width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:8px;
  font-family:var(--font);font-size:15px;margin-bottom:16px;background:#fff;
  transition:border-color .15s,box-shadow .15s;
}
.contact-form input:focus,.contact-form textarea:focus,.contact-form select:focus{
  outline:0;border-color:var(--accent);box-shadow:0 0 0 3px rgba(232,119,34,.15);
}
.contact-form textarea{resize:vertical;min-height:120px}
.contact-form .btn{width:100%;padding:14px}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 1024px){
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .product-grid{grid-template-columns:repeat(2,1fr)}
  .feat-grid{grid-template-columns:repeat(2,1fr)}
  .app-grid{grid-template-columns:repeat(3,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .product-layout{grid-template-columns:1fr;gap:32px}
  .pd-media{position:static}
  .contact-grid{grid-template-columns:1fr;gap:32px}
  .app-hero-inner{grid-template-columns:1fr}
  .app-hero .ico-big{display:none}
}

@media (max-width: 768px){
  .topbar-inner{font-size:12px;gap:12px;justify-content:center;text-align:center}
  .burger{display:block}
  .mainnav{
    position:fixed;top:0;left:0;right:0;bottom:0;
    background:#fff;padding:80px 24px 24px;
    transform:translateX(100%);transition:transform .25s;z-index:99;
    overflow-y:auto;
  }
  body.nav-open .mainnav{transform:translateX(0)}
  body.nav-open .burger{position:relative;z-index:100}
  .mainnav > ul{flex-direction:column;align-items:stretch;gap:2px}
  .mainnav a{padding:14px 16px;font-size:16px;border-radius:8px}
  .has-drop .dropdown{
    position:static;opacity:1;visibility:visible;transform:none;
    box-shadow:none;border:0;padding:0 0 0 16px;background:transparent;
  }
  .mainnav .cta{margin-left:0;margin-top:12px;text-align:center}

  .hero{padding:48px 0}
  .hero h1{font-size:32px}
  .hero-stats{gap:22px}
  .product-grid{grid-template-columns:1fr}
  .feat-grid{grid-template-columns:1fr}
  .app-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .fmenu.lang{columns:2}
  .section{padding:56px 0}
  .cta-inner{flex-direction:column;text-align:center}
  .pd-highlights{grid-template-columns:1fr}
}

@media (max-width: 480px){
  .trust-flags{gap:16px}
  .app-grid{grid-template-columns:1fr}
}