/* Shared presentation layer for the ATV Glass HTML prototype. */
:root{--primary-navy:#142c43;--brand-blue:#214f71;--brand-blue-hover:#163c59;--brand-cyan:#12bce3;--bg-body:#f3f6f7;--text-primary:#142c43;--text-secondary:#506272;--border-subtle:#dce5e9;--radius-lg:12px;--radius-xl:16px;--container-width:1240px;--font-heading:'Inter',system-ui,sans-serif}
html{scroll-padding-top:110px}body{background:#fff;line-height:1.7}h1,h2,h3{letter-spacing:-.035em}h1{font-weight:650}p{overflow-wrap:break-word}a,button,input,textarea,select{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{outline:3px solid #24b9d6;outline-offset:4px}[hidden]{display:none!important}.skip-link{position:fixed;top:-100px;left:20px;z-index:99999;background:#fff;padding:12px 20px;border:2px solid var(--brand-blue)}.skip-link:focus{top:12px}.container{padding-inline:32px}.section-padding{padding:88px 0}.section-header{margin-bottom:38px}.section-title{font-size:clamp(1.8rem,3vw,2.6rem);font-weight:650;line-height:1.24;margin-bottom:20px}.section-desc{max-width:650px;font-size:1rem;line-height:1.85}.section-pill,.section-pill.pill-danger{background:transparent;padding:0;margin-bottom:16px;color:#337083;letter-spacing:.14em;font-size:11px;font-weight:750;display:inline-flex;align-items:center;gap:10px}.section-pill:before{content:'';display:block;width:24px;height:2px;background:#12bce3}.top-bar{font-size:11px;padding:6px 0;background:#142c43;color:#cfdae2}.top-bar .top-bar-right>.top-item:first-child{display:none}.top-bar a[href^='tel:']{color:#fff!important}.top-info-icon{display:none}.main-header-inner{min-height:88px}.brand-logo img{width:118px;height:auto;max-height:58px;object-fit:contain}.nav-link{font-size:13px;padding:11px 12px;border-radius:0}.nav-item.active>.nav-link{color:var(--brand-blue);background:transparent;box-shadow:inset 0 -2px #12bce3}.header-cta{border-radius:5px!important;box-shadow:none!important}.main-header{border-bottom:1px solid #e3eaee}.btn{border-radius:6px;font-size:13px;font-weight:650;letter-spacing:0;padding:13px 22px;min-height:44px;white-space:normal;text-align:center;line-height:1.5;justify-content:center}.btn-primary,.btn-danger{background:var(--brand-blue);box-shadow:none}.btn-primary:hover,.btn-danger:hover{background:var(--brand-blue-hover);box-shadow:none}.btn-outline{border-color:#beced8;color:var(--brand-blue);background:transparent}.btn-sm{padding:10px 15px;font-size:12px}.btn-lg{padding:16px 24px;font-size:14px}.hero-full{display:block;min-height:0;padding:0;background:#f2f6f7;color:var(--text-primary);overflow:visible}.home-hero-grid{display:grid;grid-template-columns:1fr 1fr;min-height:660px;max-width:1600px;margin:auto}.home-hero-copy{padding:78px max(32px,calc((100vw - 1176px)/2));padding-right:48px;display:flex;flex-direction:column;justify-content:center;align-items:flex-start}.home-hero-copy .section-pill{white-space:nowrap}.home-hero-copy h1{font-size:clamp(40px,4.1vw,62px);line-height:1.12;margin:8px 0 24px;letter-spacing:-.052em}.home-hero-copy h1 span{color:var(--brand-blue)}.home-hero-copy>p{font-size:15px;color:#506272;max-width:430px;line-height:1.9}.home-hero-copy .hero-actions{margin:30px 0;gap:12px}.home-hero-copy .hero-actions .btn{box-shadow:none;font-size:13px;padding:15px 20px;white-space:nowrap}.home-hero-copy .hero-actions .btn-outline{background:#fff}.hero-footnote{padding-top:24px;border-top:1px solid #d5e0e6;display:flex;align-items:center;gap:14px;font-size:12px;color:#536573;max-width:430px}.hero-footnote svg{width:32px;height:32px;flex-shrink:0;color:#277389}.home-hero-image{position:relative;min-width:0;overflow:hidden;background:#dce5e8}.home-hero-image>img{width:100%;height:100%;position:absolute;inset:0;object-fit:cover;object-position:54% center}.home-hero-image:after{content:'';position:absolute;inset:50% 0 0;background:linear-gradient(transparent,rgba(10,30,47,.78));pointer-events:none}.hero-photo-label{position:absolute;bottom:42px;left:36px;right:36px;z-index:2;color:#fff;border-top:1px solid #ffffff60;padding-top:22px;display:flex;justify-content:space-between;gap:20px;align-items:center}.hero-photo-label small{display:block;letter-spacing:.15em;text-transform:uppercase;font-size:10px;color:#cbdde5;margin-bottom:7px}.hero-photo-label strong{font-size:19px;font-weight:500}.hero-photo-label>span{border:1px solid #ffffff60;border-radius:50%;width:42px;height:42px;display:grid;place-items:center}.trust-strip{background:#fff;border-bottom:1px solid #e1e8ec}.trust-strip .container{display:grid;grid-template-columns:repeat(3,1fr);padding-block:25px;gap:30px}.trust-strip strong{font-size:13px;display:block}.trust-strip span{font-size:12px;color:var(--text-secondary)}.trust-strip .container>div{border-right:1px solid #dce5e9;padding-left:28px}.trust-strip .container>div:first-child{padding-left:0}.trust-strip .container>div:last-child{border:0}.home-section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:30px;margin-bottom:38px}.home-section-head .section-title{margin-bottom:0;max-width:620px}.home-section-head>a{white-space:nowrap}.page-hero{padding:62px 0 64px!important;text-align:left!important;background-image:linear-gradient(90deg,#102a41eb,#102a4180),url('../assets/images/hero-projects-bg.jpg');background-position:center 48%}.page-hero::before{background:none}.page-hero .container{max-width:var(--container-width)}.page-hero h1,.page-hero .hero-title{color:white;font-size:clamp(28px,3.4vw,46px)!important;max-width:850px;line-height:1.22;margin-bottom:18px}.page-hero p{margin:0 0 24px!important;max-width:730px!important;font-size:16px!important;color:#e0e9ef!important}.page-hero .breadcrumb{justify-content:flex-start;font-size:12px;margin-bottom:28px}.page-hero .breadcrumb a,.page-hero .breadcrumb .current{color:#d7e6ef}.page-hero .container>div[style*='display: flex']{justify-content:flex-start!important;flex-wrap:wrap}.page-hero .badge-tag{background:#ffffff18!important;font-size:11px;border:1px solid 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@media(min-width:1600px){.home-hero-copy{padding-left:64px}}
@media(max-width:1100px){.container{padding-inline:24px}.home-hero-copy{padding:60px 30px}.home-hero-copy h1{font-size:43px}.home-hero-grid{min-height:610px}.nav-link{font-size:12px;padding:10px 8px}.main-header-inner{gap:15px}.split-layout{gap:36px}.filter-toolbar{grid-template-columns:1fr 1fr}.article-layout{gap:30px;grid-template-columns:minmax(0,1fr) 260px}}
@media(max-width:992px){.top-bar-right{font-size:11px}.main-header-inner{min-height:76px}.home-hero-copy .hero-actions{flex-direction:column;width:100%}.home-hero-copy .hero-actions .btn{width:100%}.home-hero-grid{min-height:640px}.home-hero-copy h1{font-size:38px}.home-products{grid-template-columns:repeat(2,1fr)}.article-layout{grid-template-columns:1fr}.article-layout aside{order:-1}.sticky-toc{position:static}.article-layout aside>div:not(.sticky-toc){display:none}.contact-options{grid-template-columns:1fr}.contact-option{padding:24px}.nav-menu{display:none}.responsive-grid{grid-template-columns:repeat(2,minmax(0,1fr))!important}.certificate-gallery{grid-template-columns:repeat(3,minmax(0,1fr))}}
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@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation:none!important;transition:none!important}}
.has-mega:focus-within .mega-menu{opacity:1;visibility:visible;transform:none}.has-mega.menu-dismissed .mega-menu{opacity:0;visibility:hidden}.search-item{display:grid;grid-template-columns:1fr auto;gap:4px 15px}.search-item strong{font-size:14px}.search-item small{grid-row:2;max-width:560px;font-size:12px;color:#647786}.search-item>span{grid-column:2;grid-row:1/3;font-size:10px;color:#214f71;align-self:center}.accordion-item.is-open .accordion-content{max-height:none}.lightbox-close{background:#fff;color:#163c59;border-radius:50%;width:40px;height:40px;display:grid;place-items:center;padding:0;font-size:30px}.toast{font-size:13px;color:#214f71;background:#fff}.form-feedback:focus{outline:2px solid #64b2c8;outline-offset:3px}
.project-facts{margin:20px 0 24px}.project-facts>div{display:grid;grid-template-columns:120px 1fr;gap:20px;padding:13px 0;border-bottom:1px solid #dce5e9;font-size:13px}.project-facts dt{color:#6c808e}.project-facts dd{margin:0;font-weight:600}.project-cover{display:block;padding:0;width:100%;border-radius:12px;overflow:hidden}.project-cover img{width:100%;aspect-ratio:4/3;object-fit:cover}.article-cover{width:100%;max-height:480px;object-fit:cover;border-radius:10px;margin-bottom:28px}.article-intro{font-size:19px;font-weight:500;color:#254c63}.article-help{padding:25px;border:1px solid #dce5e9;border-radius:8px;margin-top:22px;font-size:13px}.article-help h3{font-size:18px;margin-bottom:12px}.article-help .btn{margin-top:20px}.certificate-gallery{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.certificate-document .btn{margin-top:15px}
/* Keep the header in document flow while retaining sticky navigation. */
.site-header{position:sticky;top:0;width:100%;z-index:1000}.site-header.is-sticky .top-bar{margin-top:0;opacity:1;pointer-events:auto}.site-header.is-sticky .main-header-inner{height:72px;min-height:72px}.main-header-inner{height:88px}.site-header.is-sticky .brand-logo img{height:auto;max-height:50px}
@media(max-width:640px){.main-header-inner,.site-header.is-sticky .main-header-inner{height:76px;min-height:76px}}
.product-thumb,.project-thumb,.news-thumb{display:block;flex-shrink:0}.project-card{display:flex;flex-direction:column}.newsletter-form{display:grid;grid-template-columns:minmax(0,1fr) 44px;gap:8px}.newsletter-form .newsletter-input{width:100%;min-width:0;height:44px}.newsletter-form>button{min-width:44px;height:44px}.newsletter-form .form-demo-note,.newsletter-form .form-feedback{grid-column:1/-1;margin-top:5px;font-size:10px}.newsletter-form .form-feedback{color:#214f71}.home-products img[src*='kinhchongchay'],.product-grid img[src*='kinhchongchay'],.home-products img[src*='cua-thep'],.product-grid img[src*='cua-thep'],.home-products img[src*='vachthachcao'],.product-grid img[src*='vachthachcao']{object-fit:contain;padding:20px;background:#f2f6f7}
.site-header{transition:box-shadow .2s}.main-header{background:#fff;backdrop-filter:none;-webkit-backdrop-filter:none}.floating-actions .float-btn.hotline{box-shadow:0 4px 14px #14314525!important}
.topic-navigation{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.topic-navigation a{display:flex;gap:18px;align-items:center;border:1px solid #dce5e9;padding:25px;border-radius:8px}.topic-navigation a:hover{background:#f1f6f8;border-color:#a1bbc9}.topic-navigation span{color:#4291a6;font-size:12px}.topic-navigation strong{font-size:15px;flex:1}@media(max-width:640px){.topic-navigation{grid-template-columns:1fr;gap:12px}.topic-navigation a{padding:20px}}