/* ============================================================
   Fannon Products — Industrial Infrared Systems
   Single stylesheet · vanilla CSS · no frameworks
   Brand red #e0002a
   ============================================================ */

:root{
  --primary:#e0002a;
  --primary-dark:#9c001d;
  --primary-darker:#750016;
  --secondary:#fdeaee;
  --accent:#ff3b58;
  --bg:#ffffff;
  --surface:#f7f7f8;
  --surface-2:#eef0f2;
  --text:#15171a;
  --text-secondary:#4a4f57;
  --text-muted:#8a9099;
  --border:#e2e5e9;
  --dark:#101216;
  --dark-mid:#1b1e24;
  --dark-soft:#262a31;
  --radius-sm:6px;
  --radius-md:8px;
  --radius-lg:12px;
  --radius-xl:18px;
  --shadow-sm:0 1px 2px rgba(0,0,0,.05);
  --shadow-md:0 4px 12px rgba(0,0,0,.08);
  --shadow-lg:0 8px 30px rgba(0,0,0,.12);
  --shadow-red:0 8px 24px rgba(224,0,42,.28);
  --maxw:1200px;
}

/* ---------- 3.1 Reset & Base ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:'Poppins',ui-sans-serif,system-ui,-apple-system,sans-serif;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;line-height:1.6;min-height:100vh;display:flex;flex-direction:column;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button,input,select,textarea{font:inherit;border:none;outline:none;background:none;color:inherit}
button{cursor:pointer}
h1,h2,h3,h4,h5,h6{font-weight:800;letter-spacing:-.02em;line-height:1.12}
main{flex:1 0 auto}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

/* ---------- 3.2 Utilities ---------- */
.flex{display:flex}.inline-flex{display:inline-flex}
.items-center{align-items:center}.items-start{align-items:flex-start}
.justify-center{justify-content:center}.justify-between{justify-content:space-between}
.flex-col{flex-direction:column}.flex-wrap{flex-wrap:wrap}
.text-center{text-align:center}.text-left{text-align:left}
.gap-2{gap:8px}.gap-3{gap:12px}.gap-4{gap:16px}.gap-6{gap:24px}.gap-8{gap:32px}
.mt-2{margin-top:8px}.mt-3{margin-top:12px}.mt-4{margin-top:16px}.mt-6{margin-top:24px}.mt-8{margin-top:32px}
.mb-2{margin-bottom:8px}.mb-3{margin-bottom:12px}.mb-4{margin-bottom:16px}.mb-6{margin-bottom:24px}
.fw-5{font-weight:500}.fw-6{font-weight:600}.fw-7{font-weight:700}.fw-8{font-weight:800}
.fs-sm{font-size:.875rem}.fs-lg{font-size:1.125rem}.fs-xl{font-size:1.25rem}
.text-primary{color:var(--primary)}.text-muted{color:var(--text-muted)}.text-secondary{color:var(--text-secondary)}.text-white{color:#fff}
.bg-surface{background:var(--surface)}.bg-dark{background:var(--dark)}
.uppercase{text-transform:uppercase;letter-spacing:.08em}
.rounded{border-radius:var(--radius-md)}.rounded-lg{border-radius:var(--radius-lg)}
.shadow{box-shadow:var(--shadow-md)}
.line-clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.line-clamp-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.hidden{display:none}

/* ---------- 3.3 Container ---------- */
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}
@media(min-width:640px){.container{padding:0 24px}}
@media(min-width:1024px){.container{padding:0 32px}}
.container-narrow{max-width:820px}

/* ---------- 3.4 Grid ---------- */
.grid{display:grid;gap:24px}
.grid-2{display:grid;gap:24px;grid-template-columns:1fr}
.grid-3{display:grid;gap:24px;grid-template-columns:1fr}
.grid-4{display:grid;gap:24px;grid-template-columns:1fr}
.grid-5-col{display:grid;gap:20px;grid-template-columns:repeat(2,1fr)}
.grid-sidebar{display:grid;gap:40px;grid-template-columns:1fr}
@media(min-width:640px){
  .grid-2{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .grid-4{grid-template-columns:repeat(2,1fr)}
}
@media(min-width:768px){
  .grid-5-col{grid-template-columns:repeat(3,1fr)}
}
@media(min-width:1024px){
  .grid-3{grid-template-columns:repeat(3,1fr)}
  .grid-4{grid-template-columns:repeat(4,1fr)}
  .grid-5-col{grid-template-columns:repeat(5,1fr)}
  .grid-sidebar{grid-template-columns:2fr 1fr}
}

/* ---------- 3.5 Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 24px;border-radius:var(--radius-md);font-weight:700;font-size:.95rem;line-height:1;transition:all .18s ease;white-space:nowrap;border:2px solid transparent;cursor:pointer}
.btn svg{width:16px;height:16px;flex-shrink:0}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-red)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 12px 28px rgba(224,0,42,.36)}
.btn-dark{background:var(--dark);color:#fff}
.btn-dark:hover{background:var(--dark-mid);transform:translateY(-2px)}
.btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.btn-outline:hover{background:#fff;color:var(--dark);border-color:#fff}
.btn-outline-dark{background:transparent;color:var(--text);border-color:var(--border)}
.btn-outline-dark:hover{border-color:var(--primary);color:var(--primary)}
.btn-sm{padding:9px 16px;font-size:.85rem}
.btn-lg{padding:16px 32px;font-size:1.05rem}
.btn-block{width:100%}

/* ---------- 3.6 Header ---------- */
.site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.92);backdrop-filter:saturate(180%) blur(12px);-webkit-backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--border)}
.header-fixed{position:fixed;left:0;right:0;top:0}
.header-transparent{background:transparent;border-bottom-color:transparent}
.header-transparent .nav-link,.header-transparent .header-phone{color:#fff}
.header-transparent .mobile-toggle{color:#fff}
.header-scrolled{background:rgba(255,255,255,.95);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--border)}
.header-scrolled .nav-link,.header-scrolled .header-phone{color:var(--text)}
.header-scrolled .mobile-toggle{color:var(--text)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{display:flex;align-items:center;flex-shrink:0}
.logo-img{height:38px;width:auto}
.desktop-nav{display:none;align-items:center;gap:4px}
.nav-link{display:inline-flex;align-items:center;gap:5px;padding:9px 14px;border-radius:var(--radius-sm);font-weight:600;font-size:.92rem;color:var(--text);transition:color .15s,background .15s}
.nav-link:hover{color:var(--primary)}
.nav-link svg{width:13px;height:13px;transition:transform .2s}
.nav-dropdown{position:relative}
.nav-dropdown:hover .nav-link svg{transform:rotate(180deg)}
.dropdown-menu{position:absolute;top:calc(100% + 6px);left:0;min-width:280px;background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:8px;opacity:0;visibility:hidden;transform:translateY(8px);transition:all .18s ease;z-index:1001}
.nav-dropdown:hover .dropdown-menu{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown-item{display:flex;flex-direction:column;gap:1px;padding:9px 12px;border-radius:var(--radius-sm);transition:background .14s}
.dropdown-item:hover{background:var(--surface)}
.dropdown-item strong{font-size:.9rem;font-weight:600;color:var(--text)}
.dropdown-item span{font-size:.78rem;color:var(--text-muted)}
.header-actions{display:none;align-items:center;gap:16px}
.header-phone{display:none;align-items:center;gap:7px;font-weight:700;font-size:.95rem;color:var(--text)}
.header-phone svg{width:16px;height:16px;color:var(--primary)}
.mobile-toggle{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:var(--radius-sm);color:var(--text)}
.mobile-toggle svg{width:24px;height:24px}
.mobile-menu{display:none;flex-direction:column;gap:2px;padding:14px 20px 24px;background:#fff;border-top:1px solid var(--border);max-height:calc(100vh - 68px);overflow-y:auto}
.mobile-menu.active{display:flex}
.mobile-link{padding:13px 8px;font-weight:600;border-bottom:1px solid var(--border);color:var(--text)}
.mobile-sub{font-size:.85rem;color:var(--text-secondary);padding:10px 8px 10px 22px;border-bottom:1px solid var(--surface)}
.mobile-group-label{font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);padding:14px 8px 4px;font-weight:700}
.mobile-menu .btn{margin-top:16px}
@media(min-width:1024px){
  .desktop-nav{display:flex}
  .header-actions{display:flex}
  .mobile-toggle{display:none}
  .mobile-menu.active{display:none}
}
@media(min-width:1200px){.header-phone{display:inline-flex}}

/* ---------- 3.7 Footer ---------- */
.site-footer{background:var(--dark);color:#cbd0d8;margin-top:auto;padding:64px 0 0}
.footer-grid{display:grid;gap:36px;grid-template-columns:1fr}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.3fr}}
.footer-logo{height:42px;width:auto;margin-bottom:18px}
.footer-about{font-size:.9rem;line-height:1.7;color:#9aa1ac;max-width:340px}
.footer-h{color:#fff;font-size:.95rem;font-weight:700;margin-bottom:18px;letter-spacing:.01em}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:.9rem;color:#9aa1ac;transition:color .15s}
.footer-links a:hover{color:#fff}
.footer-contact li{display:flex;gap:11px;margin-bottom:14px;font-size:.9rem;color:#9aa1ac;align-items:flex-start}
.footer-contact svg{width:17px;height:17px;color:var(--primary);flex-shrink:0;margin-top:2px}
.footer-contact a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:56px;padding:24px 0;display:flex;flex-direction:column;gap:12px;align-items:center;text-align:center}
.footer-bottom p{font-size:.83rem;color:#7a818c}
.footer-legal{display:flex;gap:20px;flex-wrap:wrap;justify-content:center}
.footer-legal a{font-size:.83rem;color:#7a818c}
.footer-legal a:hover{color:#fff}
@media(min-width:768px){.footer-bottom{flex-direction:row;justify-content:space-between}}

/* ---------- 3.8 Sections ---------- */
.section{padding:80px 0}
.section-sm{padding:48px 0}
.section-lg{padding:96px 0}
.section-dark{background:var(--dark);color:#cbd0d8}
.section-dark h2,.section-dark h3{color:#fff}
.section-surface{background:var(--surface)}
.section-header{max-width:660px;margin:0 auto 52px;text-align:center}
.section-header.left{margin-left:0;text-align:left}
.section-label{display:inline-block;font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.12em;color:var(--primary);margin-bottom:14px}
.section-header h2{font-size:clamp(1.7rem,3.5vw,2.5rem);margin-bottom:16px}
.section-header p{color:var(--text-secondary);font-size:1.05rem}
.section-dark .section-header p{color:#9aa1ac}

/* ---------- 3.9 Hero ---------- */
.hero-dark{position:relative;background:var(--dark);color:#fff;overflow:hidden;padding:120px 0 90px}
.hero-dark::before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(16,18,22,.92) 0%,rgba(16,18,22,.72) 55%,rgba(117,0,22,.55) 100%);z-index:2}
.hero-dark-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:1;filter:saturate(.7) brightness(.7)}
.hero-dark>.container{position:relative;z-index:3}
.hero-fullscreen{min-height:100vh;display:flex;flex-direction:column;justify-content:center}
.hero-label{display:inline-flex;align-items:center;gap:8px;font-size:.8rem;font-weight:700;text-transform:uppercase;letter-spacing:.12em;color:#fff;background:var(--primary);padding:7px 15px;border-radius:100px;margin-bottom:22px}
.hero-dark h1{font-size:clamp(2.1rem,5.2vw,3.7rem);line-height:1.05;margin-bottom:22px;max-width:880px}
.hero-sub{font-size:clamp(1.05rem,2vw,1.3rem);color:#d4d8df;max-width:640px;margin-bottom:32px;line-height:1.6}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;font-size:.85rem;font-weight:600;color:#fff;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);padding:6px 14px;border-radius:100px}
.hero-split{display:grid;gap:40px;align-items:center;grid-template-columns:1fr}
@media(min-width:900px){.hero-split{grid-template-columns:1.1fr .9fr}}

/* video hero */
.hero-video{display:flex;flex-direction:column;justify-content:center;padding-top:160px;padding-bottom:80px}
.hero-bg-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:1;opacity:0;transition:opacity .5s ease;filter:saturate(.7) brightness(.62)}
.hero-bg-video.ready{opacity:1}

/* hero ticker */
.hero-ticker,.hero-ticker-inline{display:flex;gap:48px;flex-wrap:wrap}
.hero-ticker-inline{margin:40px 0 0;border-top:1px solid rgba(255,255,255,.18);padding-top:26px;max-width:760px}
.ticker-stat .num{font-size:2rem;font-weight:800;color:#fff;line-height:1}
.ticker-stat .num span{color:var(--primary)}
.ticker-stat .lbl{font-size:.8rem;color:#aeb4bd;margin-top:6px;text-transform:uppercase;letter-spacing:.06em}

/* ---------- 3.10 Stat Bar ---------- */
.stat-bar{background:var(--dark);color:#fff;padding:48px 0}
.stat-grid{display:grid;gap:28px;grid-template-columns:repeat(2,1fr);text-align:center}
@media(min-width:768px){.stat-grid{grid-template-columns:repeat(4,1fr)}}
.stat-num{font-size:clamp(2rem,4vw,2.8rem);font-weight:800;color:var(--primary);line-height:1}
.stat-lbl{font-size:.85rem;color:#b5bbc4;margin-top:8px}

/* ---------- 3.11 Trust Bar ---------- */
.trust-bar{background:var(--dark-mid);padding:26px 0}
.trust-inner{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;align-items:center}
.trust-pill{display:inline-flex;align-items:center;gap:8px;font-size:.84rem;font-weight:600;color:#e6e9ee;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.13);padding:9px 18px;border-radius:100px}
.trust-pill svg{width:15px;height:15px;color:var(--primary)}

/* ---------- 3.12 Cards ---------- */
.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:30px;transition:transform .2s,box-shadow .2s,border-color .2s;height:100%}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:transparent}
.card-icon{width:52px;height:52px;border-radius:var(--radius-md);background:var(--secondary);color:var(--primary);display:flex;align-items:center;justify-content:center;margin-bottom:20px}
.card-icon svg{width:26px;height:26px}
.card h3{font-size:1.2rem;margin-bottom:10px}
.card p{color:var(--text-secondary);font-size:.94rem}
.card-link{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-weight:700;font-size:.9rem;color:var(--primary)}
.card-link svg{width:15px;height:15px;transition:transform .18s}
.card:hover .card-link svg{transform:translateX(4px)}

.img-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;transition:transform .2s,box-shadow .2s;height:100%;display:flex;flex-direction:column}
.img-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.img-card-img{aspect-ratio:16/10;width:100%;object-fit:cover;background:var(--surface-2)}
.img-card-body{padding:24px;flex:1;display:flex;flex-direction:column}
.img-card-body h3{font-size:1.15rem;margin-bottom:8px}
.img-card-body p{color:var(--text-secondary);font-size:.92rem;flex:1}

/* category card */
.cat-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s;height:100%}
.cat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.cat-card-img{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--surface-2)}
.cat-card-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.cat-card:hover .cat-card-img img{transform:scale(1.05)}
.cat-card-count{position:absolute;top:12px;right:12px;background:rgba(16,18,22,.85);color:#fff;font-size:.75rem;font-weight:700;padding:5px 11px;border-radius:100px}
.cat-card-body{padding:24px;flex:1;display:flex;flex-direction:column}
.cat-card-body h3{font-size:1.2rem;margin-bottom:10px}
.cat-card-body p{color:var(--text-secondary);font-size:.92rem;margin-bottom:14px}
.cat-card-list{margin-bottom:18px}
.cat-card-list li{display:flex;align-items:flex-start;gap:8px;font-size:.86rem;color:var(--text-secondary);margin-bottom:7px}
.cat-card-list svg{width:15px;height:15px;color:var(--primary);flex-shrink:0;margin-top:3px}
.cat-card .card-link{margin-top:auto}

/* product card */
.product-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;transition:transform .2s,box-shadow .2s;height:100%;display:flex;flex-direction:column}
.product-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.product-card-img{aspect-ratio:4/3;object-fit:cover;width:100%;background:var(--surface-2)}
.product-card-body{padding:20px;flex:1;display:flex;flex-direction:column}
.product-tag{display:inline-block;font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--primary);background:var(--secondary);padding:4px 10px;border-radius:100px;margin-bottom:11px;align-self:flex-start}
.product-card-body h3{font-size:1.05rem;margin-bottom:8px}
.product-card-body p{font-size:.86rem;color:var(--text-secondary);flex:1;margin-bottom:14px}

/* retention / feature card */
.retention-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;height:100%;display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s}
.retention-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.retention-card-img{aspect-ratio:3/2;object-fit:cover;width:100%;background:var(--surface-2)}
.retention-card-body{padding:24px;flex:1}
.retention-card-body h3{font-size:1.12rem;margin-bottom:9px}
.retention-card-body p{font-size:.9rem;color:var(--text-secondary)}

/* testimonial */
.testimonial-card{background:var(--dark-mid);border:1px solid rgba(255,255,255,.08);border-radius:var(--radius-lg);padding:32px;height:100%;display:flex;flex-direction:column}
.testimonial-stars{display:flex;gap:3px;margin-bottom:18px}
.testimonial-stars svg{width:18px;height:18px;color:#ffc233}
.testimonial-quote{font-size:1.02rem;line-height:1.7;color:#e6e9ee;flex:1;margin-bottom:22px}
.testimonial-author{display:flex;align-items:center;gap:13px}
.testimonial-avatar{width:46px;height:46px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:1.05rem}
.testimonial-name{font-weight:700;color:#fff;font-size:.95rem}
.testimonial-role{font-size:.82rem;color:#9aa1ac}

/* related card */
.related-card{display:block;background:#fff;border:1px solid var(--border);border-radius:var(--radius-md);padding:18px 20px;transition:border-color .15s,transform .15s}
.related-card:hover{border-color:var(--primary);transform:translateY(-2px)}
.related-card strong{display:block;font-size:.98rem;margin-bottom:4px}
.related-card span{font-size:.85rem;color:var(--text-muted)}

/* ---------- 3.13 Process ---------- */
.process{background:var(--dark);color:#fff}
.process-grid{display:grid;gap:32px;grid-template-columns:1fr;counter-reset:step}
@media(min-width:768px){.process-grid{grid-template-columns:repeat(3,1fr)}}
.process-step{position:relative;padding-top:8px}
.process-num{width:54px;height:54px;border-radius:50%;border:2px solid var(--primary);color:var(--primary);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:1.3rem;margin-bottom:20px}
.process-step h3{font-size:1.2rem;margin-bottom:10px}
.process-step p{color:#9aa1ac;font-size:.92rem}

/* ---------- 3.14 Industry scroll ---------- */
.industry-scroll-wrap{position:relative;overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent)}
.industry-track{display:flex;gap:18px;width:max-content;animation:scroll-x 42s linear infinite}
.industry-scroll-wrap:hover .industry-track{animation-play-state:paused}
@keyframes scroll-x{from{transform:translateX(0)}to{transform:translateX(-50%)}}
.industry-tile{position:relative;width:280px;height:200px;border-radius:var(--radius-lg);overflow:hidden;flex-shrink:0}
.industry-tile img{width:100%;height:100%;object-fit:cover}
.industry-tile::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(16,18,22,.85) 0%,rgba(16,18,22,.1) 60%)}
.industry-tile span{position:absolute;left:18px;bottom:16px;z-index:2;color:#fff;font-weight:700;font-size:1.05rem}

/* ---------- 3.16 CTA ---------- */
.cta-gradient{background:linear-gradient(135deg,var(--secondary),#fff)}
.cta-dark{position:relative;background:var(--dark);color:#fff;overflow:hidden}
.cta-dark::before{content:"";position:absolute;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,rgba(224,0,42,.4),transparent 70%);top:-200px;right:-120px;z-index:1}
.cta-content{position:relative;z-index:2;text-align:center;max-width:680px;margin:0 auto}
.cta-content h2{font-size:clamp(1.8rem,4vw,2.6rem);margin-bottom:16px}
.cta-content p{color:#9aa1ac;font-size:1.1rem;margin-bottom:30px}
.cta-content .hero-btns{justify-content:center}
.cta-form-grid{position:relative;z-index:2;display:grid;gap:48px;grid-template-columns:1fr;align-items:start}
@media(min-width:900px){.cta-form-grid{grid-template-columns:1fr 1fr}}
.cta-form-grid .cta-info h2{font-size:clamp(1.7rem,3.5vw,2.4rem);color:#fff;margin-bottom:16px}
.cta-form-grid .cta-info p{color:#9aa1ac;margin-bottom:26px}
.cta-info-list li{display:flex;gap:13px;margin-bottom:18px;align-items:flex-start}
.cta-info-list svg{width:20px;height:20px;color:var(--primary);flex-shrink:0;margin-top:2px}
.cta-info-list strong{display:block;color:#fff;font-size:.98rem}
.cta-info-list span{font-size:.88rem;color:#9aa1ac}
.cta-form{background:var(--dark-mid);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-xl);padding:32px}
.cta-form h3{color:#fff;font-size:1.3rem;margin-bottom:6px}
.cta-form>p{color:#9aa1ac;font-size:.9rem;margin-bottom:22px}
.cta-form .form-control{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);color:#fff}
.cta-form .form-control::placeholder{color:#7e858f}
.cta-form .form-control:focus{border-color:var(--primary);background:rgba(255,255,255,.1)}
.cta-form label{color:#cbd0d8}
.cta-form select.form-control option{background:var(--dark-mid);color:#fff}

/* ---------- 3.17 Forms ---------- */
.form-group{margin-bottom:18px}
.form-row{display:grid;gap:18px;grid-template-columns:1fr}
@media(min-width:560px){.form-row{grid-template-columns:1fr 1fr}}
.form-group label{display:block;font-size:.85rem;font-weight:600;margin-bottom:7px}
.form-group label .req{color:var(--primary)}
.form-control{width:100%;padding:12px 15px;background:#fff;border:1px solid var(--border);border-radius:var(--radius-md);font-size:.95rem;color:var(--text);transition:border-color .15s,box-shadow .15s}
.form-control:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(224,0,42,.12)}
textarea.form-control{resize:vertical;min-height:120px}
.form-success{background:var(--secondary);border-left:4px solid var(--primary);border-radius:var(--radius-md);padding:24px 26px}
.form-success h3{color:var(--primary-dark);font-size:1.25rem;margin-bottom:8px}
.form-success p{color:var(--text-secondary)}
.form-note{font-size:.8rem;color:var(--text-muted);margin-top:8px}

/* ---------- 3.18 Contact sidebar ---------- */
.contact-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px}
.contact-card h3{font-size:1.2rem;margin-bottom:20px}
.contact-item{display:flex;gap:14px;margin-bottom:20px;align-items:flex-start}
.contact-item:last-child{margin-bottom:0}
.contact-icon{width:42px;height:42px;border-radius:var(--radius-md);background:var(--secondary);color:var(--primary);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.contact-icon svg{width:19px;height:19px}
.contact-item-label{font-size:.78rem;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);margin-bottom:3px}
.contact-item-val{font-weight:600;font-size:.96rem;line-height:1.5}
.contact-item-val a:hover{color:var(--primary)}
.quick-response{background:var(--dark);color:#fff;border-radius:var(--radius-lg);padding:24px;margin-top:24px}
.quick-response h4{color:#fff;font-size:1.05rem;margin-bottom:8px;display:flex;align-items:center;gap:9px}
.quick-response h4 svg{width:18px;height:18px;color:var(--primary)}
.quick-response p{font-size:.88rem;color:#9aa1ac}

/* ---------- 3.19 Modal ---------- */
.modal-overlay{position:fixed;inset:0;background:rgba(10,11,13,.6);backdrop-filter:blur(5px);z-index:1100;display:none;align-items:center;justify-content:center;padding:20px;overflow-y:auto}
.modal-overlay.active{display:flex}
.modal{background:#fff;border-radius:var(--radius-xl);max-width:560px;width:100%;max-height:92vh;overflow-y:auto;box-shadow:var(--shadow-lg);animation:modal-in .25s ease}
@keyframes modal-in{from{opacity:0;transform:translateY(20px) scale(.97)}to{opacity:1;transform:none}}
.modal-header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;padding:26px 28px 0}
.modal-header h3{font-size:1.4rem;margin-bottom:6px}
.modal-header p{font-size:.9rem;color:var(--text-secondary)}
.modal-close{width:36px;height:36px;border-radius:50%;background:var(--surface);display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:background .15s}
.modal-close:hover{background:var(--surface-2)}
.modal-close svg{width:18px;height:18px}
.modal-body{padding:22px 28px 30px}
.modal-success{text-align:center;padding:44px 28px}
.modal-success-icon{width:64px;height:64px;border-radius:50%;background:var(--secondary);color:var(--primary);display:flex;align-items:center;justify-content:center;margin:0 auto 18px}
.modal-success-icon svg{width:32px;height:32px}
.modal-success h3{font-size:1.4rem;margin-bottom:10px}
.modal-success p{color:var(--text-secondary)}

/* ---------- 3.20 FAQ ---------- */
.faq-list{max-width:820px;margin:0 auto}
.faq-item{border:1px solid var(--border);border-radius:var(--radius-md);margin-bottom:14px;overflow:hidden;background:#fff}
.faq-item.active{border-color:var(--primary)}
.faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;text-align:left;font-weight:700;font-size:1.02rem}
.faq-question svg{width:20px;height:20px;color:var(--primary);flex-shrink:0;transition:transform .25s}
.faq-item.active .faq-question svg{transform:rotate(45deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-answer-inner{padding:0 24px 22px;color:var(--text-secondary);font-size:.95rem;line-height:1.7}
.faq-item.active .faq-answer{max-height:600px}
.section-dark .faq-item{background:var(--dark-mid);border-color:rgba(255,255,255,.1)}
.section-dark .faq-question{color:#fff}
.section-dark .faq-answer-inner{color:#9aa1ac}

/* ---------- 3.21 Breadcrumb ---------- */
.breadcrumb{background:var(--surface);border-bottom:1px solid var(--border)}
.breadcrumb-inner{display:flex;align-items:center;flex-wrap:wrap;gap:8px;padding:14px 0;font-size:.85rem}
.breadcrumb-inner a{color:var(--text-muted);transition:color .15s}
.breadcrumb-inner a:hover{color:var(--primary)}
.breadcrumb-inner span[aria-current]{color:var(--text);font-weight:600}
.breadcrumb-sep{width:14px;height:14px;color:var(--text-muted)}

/* ---------- 3.22 Product detail ---------- */
.product-hero-grid{display:grid;gap:44px;grid-template-columns:1fr;align-items:start}
@media(min-width:900px){.product-hero-grid{grid-template-columns:1fr 1fr}}
.product-visual{border-radius:var(--radius-xl);overflow:hidden;border:1px solid var(--border);background:var(--surface)}
.product-visual img{width:100%;aspect-ratio:4/3;object-fit:cover}
.product-meta{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:24px 0}
.product-meta-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:15px}
.product-meta-item .pm-label{font-size:.72rem;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted)}
.product-meta-item .pm-val{font-weight:700;font-size:.98rem;margin-top:4px}
.delivery-note{display:flex;align-items:center;gap:9px;font-size:.88rem;color:var(--text-secondary);margin-top:18px}
.delivery-note svg{width:18px;height:18px;color:var(--primary)}

/* ---------- 3.23 Detail grid + sidebar ---------- */
.detail-grid{display:grid;gap:36px;grid-template-columns:1fr}
@media(min-width:1024px){.detail-grid{grid-template-columns:2fr 1fr}}
.detail-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:30px;margin-bottom:24px}
.detail-card h3{font-size:1.3rem;margin-bottom:18px}
.feature-list li{display:flex;gap:11px;margin-bottom:13px;font-size:.95rem;color:var(--text-secondary);align-items:flex-start}
.feature-list svg{width:18px;height:18px;color:var(--primary);flex-shrink:0;margin-top:3px}
.spec-table{width:100%;border-collapse:collapse}
.spec-table tr{border-bottom:1px solid var(--border)}
.spec-table tr:last-child{border-bottom:none}
.spec-table th{text-align:left;padding:12px 0;font-size:.88rem;color:var(--text-secondary);font-weight:600;width:42%;vertical-align:top}
.spec-table td{padding:12px 0;font-size:.9rem;font-weight:600;vertical-align:top}
.app-grid{display:grid;gap:12px;grid-template-columns:1fr}
@media(min-width:560px){.app-grid{grid-template-columns:1fr 1fr}}
.app-chip{display:flex;align-items:center;gap:9px;background:var(--surface);border-radius:var(--radius-md);padding:13px 16px;font-size:.9rem;font-weight:500}
.app-chip svg{width:16px;height:16px;color:var(--primary);flex-shrink:0}
.sidebar-cta{position:sticky;top:90px;background:var(--dark);color:#fff;border-radius:var(--radius-lg);padding:30px}
.sidebar-cta h3{color:#fff;font-size:1.25rem;margin-bottom:10px}
.sidebar-cta p{color:#9aa1ac;font-size:.92rem;margin-bottom:22px}
.sidebar-cta .btn{margin-bottom:12px}
.sidebar-cta-phone{display:flex;align-items:center;justify-content:center;gap:9px;font-weight:700;color:#fff;padding-top:8px}
.sidebar-cta-phone svg{width:18px;height:18px;color:var(--primary)}

/* ---------- 3.24 Catalog + filters ---------- */
.catalog-layout{display:grid;gap:32px;grid-template-columns:1fr}
@media(min-width:1024px){.catalog-layout{grid-template-columns:260px 1fr}}
.filter-panel{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px}
@media(min-width:1024px){.filter-panel{position:sticky;top:90px}}
.filter-toggle-btn{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;margin-bottom:20px}
.filter-toggle-btn svg{width:16px;height:16px}
.filter-group{margin-bottom:22px}
.filter-group:last-child{margin-bottom:0}
.filter-group h4{font-size:.85rem;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);margin-bottom:13px}
.filter-check{display:flex;align-items:center;gap:10px;margin-bottom:11px;cursor:pointer;font-size:.92rem}
.filter-check input{position:absolute;opacity:0;width:0;height:0}
.filter-box{width:19px;height:19px;border:2px solid var(--border);border-radius:5px;flex-shrink:0;display:flex;align-items:center;justify-content:center;transition:all .15s}
.filter-box svg{width:12px;height:12px;color:#fff;opacity:0}
.filter-check input:checked+.filter-box{background:var(--primary);border-color:var(--primary)}
.filter-check input:checked+.filter-box svg{opacity:1}
.catalog-count{font-size:.9rem;color:var(--text-muted);margin-bottom:20px}
.catalog-grid{display:grid;gap:24px;grid-template-columns:1fr}
@media(min-width:560px){.catalog-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.catalog-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1280px){.catalog-grid{grid-template-columns:repeat(3,1fr)}}
.no-results{grid-column:1/-1;text-align:center;padding:50px 20px;color:var(--text-muted)}

/* product listing card (horizontal) */
.product-listing-card{display:grid;grid-template-columns:1fr;background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;transition:box-shadow .2s,border-color .2s}
.product-listing-card:hover{box-shadow:var(--shadow-md);border-color:transparent}
@media(min-width:640px){.product-listing-card{grid-template-columns:200px 1fr}}
.product-listing-card .pl-img{aspect-ratio:4/3;object-fit:cover;width:100%;background:var(--surface-2)}
.product-listing-card .pl-body{padding:22px}

/* ---------- 3.25 Timeline ---------- */
.timeline{position:relative;max-width:760px;margin:0 auto;padding-left:40px}
.timeline::before{content:"";position:absolute;left:11px;top:6px;bottom:6px;width:2px;background:var(--border)}
.timeline-item{position:relative;padding-bottom:38px}
.timeline-item:last-child{padding-bottom:0}
.timeline-dot{position:absolute;left:-34px;top:2px;width:24px;height:24px;border-radius:50%;background:var(--primary);border:4px solid #fff;box-shadow:0 0 0 2px var(--primary)}
.timeline-year{font-size:.85rem;font-weight:800;color:var(--primary);margin-bottom:5px}
.timeline-content h3{font-size:1.15rem;margin-bottom:7px}
.timeline-content p{color:var(--text-secondary);font-size:.94rem}

/* ---------- 3.26 Misc ---------- */
.split-section{display:grid;gap:48px;align-items:center;grid-template-columns:1fr}
@media(min-width:900px){.split-section{grid-template-columns:1fr 1fr}}
.split-img{border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow-lg)}
.split-img img{width:100%;aspect-ratio:4/3;object-fit:cover}
.split-content h2{font-size:clamp(1.6rem,3.4vw,2.3rem);margin-bottom:18px}
.split-content>p{color:var(--text-secondary);font-size:1.02rem;margin-bottom:22px}
.check-list li{display:flex;gap:12px;margin-bottom:14px;align-items:flex-start}
.check-list svg{width:20px;height:20px;color:var(--primary);flex-shrink:0;margin-top:2px}
.check-list strong{display:block;font-size:.98rem;margin-bottom:2px}
.check-list span{font-size:.9rem;color:var(--text-secondary)}
.brand-grid{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.brand-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius-md);padding:16px 28px;font-weight:800;font-size:1.1rem;color:var(--text-secondary);letter-spacing:.02em}
.photo-strip{display:grid;grid-template-columns:repeat(2,1fr);gap:4px}
@media(min-width:768px){.photo-strip{grid-template-columns:repeat(4,1fr)}}
.photo-strip img{width:100%;height:200px;object-fit:cover}

/* floating quote FAB */
.quote-fab{position:fixed;right:22px;bottom:22px;z-index:1090;display:inline-flex;align-items:center;gap:10px;background:var(--primary);color:#fff;padding:14px 22px;border-radius:100px;font-weight:700;font-size:.95rem;box-shadow:var(--shadow-red);transition:transform .18s,background .18s}
.quote-fab:hover{background:var(--primary-dark);transform:translateY(-2px)}
.quote-fab svg{width:20px;height:20px}
@media(max-width:560px){
  .quote-fab{width:56px;height:56px;padding:0;border-radius:50%;justify-content:center;right:16px;bottom:16px}
  .quote-fab-label{position:absolute;width:1px;height:1px;clip:rect(0,0,0,0);overflow:hidden}
}

/* 404 */
.error-page{text-align:center;padding:120px 0 90px}
.error-code{font-size:clamp(5rem,18vw,11rem);font-weight:900;color:var(--primary);line-height:1;letter-spacing:-.04em}
.error-page h1{font-size:clamp(1.6rem,4vw,2.4rem);margin:8px 0 16px}
.error-page p{color:var(--text-secondary);font-size:1.1rem;max-width:520px;margin:0 auto 30px}

/* page intro (light hero alt) */
.page-intro{padding:56px 0;background:var(--surface);border-bottom:1px solid var(--border)}

/* ---------- interaction enhancements ---------- */
/* in-page anchors clear the fixed/sticky header */
[id]{scroll-margin-top:90px}

/* scroll-reveal — only active when JS is on, so content is visible without JS */
.js .reveal{opacity:0;transform:translateY(26px);transition:opacity .6s cubic-bezier(.16,1,.3,1),transform .6s cubic-bezier(.16,1,.3,1);will-change:opacity,transform}
.js .reveal.in{opacity:1;transform:none}

/* active nav link */
.nav-link.active-link{color:var(--primary);position:relative}
.nav-link.active-link::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;background:var(--primary);border-radius:2px}
.header-transparent .nav-link.active-link{color:#fff}
.header-transparent.header-scrolled .nav-link.active-link{color:var(--primary)}
.mobile-link.active-link,.mobile-sub.active-link{color:var(--primary)}

/* sticky-header scroll shadow */
.header-shadow{box-shadow:0 2px 14px rgba(16,18,22,.07)}

@media(prefers-reduced-motion:reduce){
  .js .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  .industry-track{animation:none}
}

/* ============================================================
   3.27 Mobile optimizations
   ============================================================ */
@media(max-width:767px){
  .section{padding:48px 0}
  .section-lg{padding:64px 0}
  .section-sm{padding:32px 0}
  .section-header{margin-bottom:36px}
  .hero-dark{padding:64px 0 56px}
  .hero-video{padding-top:120px;padding-bottom:56px}
  .site-footer{padding-top:40px}
  .footer-bottom{margin-top:36px}
  .cta-form-grid{gap:32px}
  .process-grid{gap:24px}
}
@media(max-width:639px){
  .product-meta{grid-template-columns:repeat(2,1fr)}
  .card,.cat-card-body,.img-card-body{padding:20px}
  .cta-form,.contact-card,.detail-card{padding:22px}
  .cta-content h2,.section-header h2{font-size:1.55rem}
  .hero-ticker-inline{gap:28px}
  .ticker-stat .num{font-size:1.6rem}
  .split-section{gap:32px}
  .split-img img{aspect-ratio:16/10}
  .faq-question{padding:16px 18px;font-size:.96rem}
  .faq-answer-inner{padding:0 18px 18px}
  .photo-strip img{height:140px}
}
@media(max-width:479px){
  .section{padding:40px 0}
  .btn{white-space:normal}
  .btn-lg{padding:14px 22px}
  .hero-dark h1{font-size:1.9rem}
  .product-meta{grid-template-columns:1fr}
  .industry-tile{width:230px;height:170px}
  .stat-num{font-size:1.7rem}
  .stat-bar{padding:36px 0}
  .modal-header{padding:20px 20px 0}
  .modal-body{padding:18px 20px 24px}
  .hero-btns .btn{width:100%}
  .brand-item{padding:12px 20px;font-size:1rem}
}