:root{
  --navy:#0b2545;
  --navy-2:#113a66;
  --brick:#b84a2b;
  --brick-2:#d05a35;
  --ink:#182233;
  --muted:#64748b;
  --line:#e2e8f0;
  --soft:#f6f8fb;
  --white:#ffffff;
  --shadow:0 18px 50px rgba(11,37,69,.12);
  --radius:18px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Be Vietnam Pro','Segoe UI',Arial,Helvetica,sans-serif;
  color:var(--ink);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  background:#fff;
  line-height:1.6;
}
a{color:inherit;text-decoration:none}
.container{width:min(1160px,92%);margin:0 auto}
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(10px);
}
.nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:12px;min-width:max-content}
.brand-mark{
  width:46px;height:46px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--navy),var(--brick));
  color:#fff;font-weight:800;letter-spacing:.5px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text small{color:var(--muted);font-size:12px;margin-top:2px}
.main-nav{display:flex;gap:22px;align-items:center;font-weight:700;font-size:14px}
.main-nav a{color:#26364c}
.main-nav a:hover{color:var(--brick)}
.nav-toggle{display:none;background:transparent;border:0;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--navy);margin:5px 0}
.hero{
  background:
    radial-gradient(circle at 75% 20%, rgba(184,74,43,.22), transparent 28%),
    linear-gradient(135deg,#f7f9fc 0%,#eef4fb 48%,#fff 100%);
  padding:84px 0 60px;
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.eyebrow{text-transform:uppercase;letter-spacing:.12em;font-size:12px;font-weight:800;color:var(--brick);margin:0 0 10px}
.eyebrow.light{color:#ffb199}
h1,h2,h3{line-height:1.15;margin:0 0 16px;color:var(--navy)}
h1{font-size:clamp(38px,5vw,64px);letter-spacing:-.04em}
h2{font-size:clamp(28px,3.4vw,44px);letter-spacing:-.03em}
h3{font-size:21px}
p{margin:0 0 16px}
.hero-lead{font-size:18px;color:#42526a;max-width:680px}
.hero-actions,.cta-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:48px;padding:13px 20px;border-radius:999px;
  font-weight:800;border:1px solid transparent;transition:.2s ease;
}
.btn-primary{background:var(--brick);color:#fff}
.btn-primary:hover{background:var(--brick-2);transform:translateY(-1px)}
.btn-secondary{background:#fff;color:var(--navy);border-color:var(--line)}
.btn-secondary:hover{border-color:var(--navy);transform:translateY(-1px)}
.btn-outline-light{border-color:rgba(255,255,255,.45);color:#fff}
.btn-outline-light:hover{background:#fff;color:var(--navy)}
.trust-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}
.trust-row span,.area-list span{
  display:inline-flex;padding:8px 12px;border-radius:999px;
  background:#fff;border:1px solid var(--line);font-size:13px;font-weight:800;color:var(--navy)
}
.hero-card{
  background:#fff;border:1px solid var(--line);border-radius:28px;
  padding:18px;box-shadow:var(--shadow);
}
.image-placeholder{
  border:1px dashed #9fb1c8;border-radius:var(--radius);
  background:linear-gradient(135deg,#eef3f8,#dfe8f2);
  display:flex;align-items:center;justify-content:center;text-align:center;color:#60758d;font-weight:800;
}
.image-placeholder.large{height:360px}
.image-placeholder.medium{height:300px}
.image-placeholder.small{height:190px;border-radius:16px}
.hero-card-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}
.hero-card-stats div{background:var(--soft);border-radius:16px;padding:14px}
.hero-card-stats strong{display:block;color:var(--navy);font-size:20px}
.hero-card-stats span{font-size:12px;color:var(--muted);font-weight:700}
.stats-strip{background:var(--navy);color:#fff;padding:24px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stats-grid div{border-left:1px solid rgba(255,255,255,.22);padding-left:18px}
.stats-grid strong{display:block;font-size:22px}
.stats-grid span{font-size:13px;color:#cbd5e1}
.section{padding:78px 0}
.section.compact{padding-top:12px}
.bg-soft{background:var(--soft)}
.bg-navy{background:linear-gradient(135deg,var(--navy),#071b33);color:#dbe7f3}
.bg-navy h2,.bg-navy h3{color:#fff}
.two-col{display:grid;grid-template-columns:.8fr 1.2fr;gap:56px;align-items:start}
.section-head{max-width:760px;margin-bottom:34px}
.section-head p{color:#526273}
.light-text p{color:#dbe7f3}
.product-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.product-card,.feature-card,.service-card,.news-card,.contact-card,.quote-form{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;
  box-shadow:0 8px 22px rgba(15,23,42,.04);
}
.product-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.product-icon{
  width:52px;height:52px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:#eef4fb;color:var(--navy);font-weight:900;margin-bottom:18px;
}
.product-card p,.feature-card p,.service-card p,.news-card p{color:#5d6b7f}
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.feature-grid.three{grid-template-columns:repeat(3,1fr)}
.feature-card.dark{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.16);box-shadow:none}
.feature-card.dark p{color:#cbd5e1}
.service-highlight{display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:center}
.area-list{display:flex;gap:10px;flex-wrap:wrap}
.area-list span{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.22)}
.quote-panel,.quote-layout,.contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:32px;align-items:start}
.quote-form{display:flex;flex-direction:column;gap:12px}
.quote-form input,.quote-form textarea,.quote-form select,.product-toolbar input{
  width:100%;border:1px solid var(--line);border-radius:14px;padding:14px 15px;
  font:inherit;background:#fff;color:var(--ink);
}
.quote-form textarea{min-height:118px;resize:vertical}
.form-note{font-size:13px;color:var(--muted);margin:0}
.final-cta{background:var(--brick);color:#fff;padding:56px 0}
.final-cta h2{color:#fff}
.final-cta p{color:#ffe8df}
.final-cta-grid{display:flex;align-items:center;justify-content:space-between;gap:30px}
.site-footer{background:#071b33;color:#dbe7f3;padding:56px 0 20px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:30px}
.footer-brand{display:flex;gap:12px;align-items:center;margin-bottom:14px}
.footer-desc{color:#aebdce}
.site-footer h4{margin:0 0 12px;color:#fff}
.site-footer a{display:block;color:#cbd5e1;margin-bottom:8px}
.site-footer a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:36px;padding-top:18px;display:flex;justify-content:space-between;gap:16px;color:#92a4ba;font-size:13px}
.floating-actions{position:fixed;right:18px;bottom:18px;display:flex;flex-direction:column;gap:10px;z-index:60}
.floating-actions a{padding:12px 14px;border-radius:999px;color:#fff;font-weight:900;box-shadow:var(--shadow)}
.float-call{background:var(--brick)}
.float-zalo{background:#0b73d9}
.page-hero{background:linear-gradient(135deg,#eef4fb,#fff);padding:74px 0 58px;border-bottom:1px solid var(--line)}
.page-hero h1{max-width:900px}
.page-hero p:last-child{font-size:18px;max-width:760px;color:#526273}
.values-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.product-toolbar{display:flex;gap:14px}
.product-toolbar input{flex:1}
.product-list{display:flex;flex-direction:column;gap:26px}
.product-detail{
  display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:center;
  border:1px solid var(--line);border-radius:24px;padding:28px;background:#fff;
}
.check-list{list-style:none;padding:0;margin:18px 0}
.check-list li{position:relative;padding-left:28px;margin:10px 0;color:#3f4e63}
.check-list li:before{content:"✓";position:absolute;left:0;top:0;color:var(--brick);font-weight:900}
.text-link{font-weight:900;color:var(--brick)}
.service-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.service-card span{display:inline-flex;color:var(--brick);font-weight:900;margin-bottom:14px}
.quote-info{background:var(--soft);border-radius:24px;padding:28px;border:1px solid var(--line)}
.note-box{background:#fff8f5;border-left:4px solid var(--brick);padding:16px;border-radius:14px;color:#56382d}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.contact-row{display:flex;justify-content:space-between;gap:14px;border-bottom:1px solid var(--line);padding:12px 0}
.contact-row span{color:var(--muted)}
.map-placeholder{
  margin-top:18px;height:210px;border-radius:16px;
  display:flex;align-items:center;justify-content:center;
  background:#eef3f8;color:#60758d;font-weight:900;border:1px dashed #9fb1c8;
}
@media (max-width: 960px){
  .nav-toggle{display:block}
  .main-nav{
    position:absolute;left:0;right:0;top:78px;display:none;flex-direction:column;align-items:flex-start;
    background:#fff;border-bottom:1px solid var(--line);padding:18px 4%;box-shadow:var(--shadow)
  }
  .main-nav.open{display:flex}
  .hero-grid,.two-col,.service-highlight,.quote-panel,.quote-layout,.contact-grid,.product-detail{grid-template-columns:1fr}
  .product-grid{grid-template-columns:repeat(2,1fr)}
  .feature-grid,.feature-grid.three,.service-cards,.news-grid{grid-template-columns:1fr 1fr}
  .stats-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width: 640px){
  .brand-text strong{font-size:14px}
  .brand-text small{display:none}
  .hero{padding:54px 0 42px}
  .section{padding:54px 0}
  .product-grid,.feature-grid,.feature-grid.three,.service-cards,.news-grid,.stats-grid,.footer-grid,.values-grid,.form-grid{grid-template-columns:1fr}
  .hero-card-stats{grid-template-columns:1fr}
  .final-cta-grid,.footer-bottom,.product-toolbar{flex-direction:column;align-items:stretch}
  .btn{width:100%}
  .floating-actions{right:12px;bottom:12px}
}


.image-placeholder{overflow:hidden;padding:0;position:relative;background:#dfe8f2}
.image-placeholder span{display:none}
.image-placeholder img{width:100%;height:100%;object-fit:cover;display:block}
.product-card{overflow:hidden}
.product-thumb{width:calc(100% + 48px);margin:-24px -24px 18px;border-radius:18px 18px 0 0;height:170px;object-fit:cover;display:block}
@media (max-width:640px){.product-thumb{height:190px}}


/* Vietnamese font fix */
.btn,
.trust-row span,
.area-list span,
.main-nav,
.product-icon,
.text-link,
.floating-actions a {
  font-weight: 700;
}

.trust-row span,
.area-list span {
  letter-spacing: -0.01em;
}

h1, h2, h3, .btn, .trust-row span, .area-list span {
  font-family: 'Be Vietnam Pro','Segoe UI',Arial,Helvetica,sans-serif;
}

.btn {
  letter-spacing: -0.015em;
}


/* V2 refinements */
.site-logo{height:52px;width:auto;display:block}
.brand{min-width:auto}
.hidden{display:none!important}
.hero{background:linear-gradient(135deg,#f5f7fa 0%,#eef3f8 55%,#ffffff 100%)}
.product-card,.feature-card,.service-card,.news-card,.contact-card,.quote-form{border-color:#dfe7ef}
.btn-primary{background:#a9472f}
.btn-primary:hover{background:#bd5438}
.final-cta{background:#0b2545}
.final-cta .btn-primary{background:#b84a2b}
.capability-section{background:#fff}
.main-nav a{font-weight:700}
.contact-row strong{max-width:65%;text-align:right}
@media (max-width:640px){.site-logo{height:46px}.contact-row{flex-direction:column}.contact-row strong{text-align:left;max-width:100%}}


/* V3 hero cover and Google Sheet form states */
.hero-cover{
  position:relative;
  min-height:680px;
  padding:130px 0 92px;
  overflow:hidden;
  background:#071b33;
}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;display:block;filter:saturate(.95) contrast(1.05)}
.hero-overlay{position:absolute;inset:0;z-index:1;background:linear-gradient(90deg,rgba(7,27,51,.92) 0%,rgba(7,27,51,.74) 42%,rgba(7,27,51,.32) 100%)}
.hero-cover-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .72fr;gap:48px;align-items:center}
.hero-cover-content h1{color:#fff;max-width:860px;text-shadow:0 10px 28px rgba(0,0,0,.22)}
.hero-cover-content .hero-lead{color:#dbe7f3;max-width:720px}
.hero-light-btn{background:rgba(255,255,255,.92)!important;color:#0b2545!important;border-color:rgba(255,255,255,.4)!important}
.hero-trust-row span{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.22);color:#fff;backdrop-filter:blur(6px)}
.hero-proof-card{background:rgba(255,255,255,.94);border:1px solid rgba(255,255,255,.5);border-radius:28px;padding:24px;box-shadow:0 22px 60px rgba(0,0,0,.18)}
.hero-proof-card>strong{display:block;color:#0b2545;font-size:22px;margin-bottom:14px}
.hero-proof-card div{display:flex;justify-content:space-between;gap:16px;border-bottom:1px solid #e2e8f0;padding:14px 0;align-items:baseline}
.hero-proof-card span{color:#b84a2b;font-size:30px;font-weight:800;line-height:1}
.hero-proof-card small{color:#475569;font-weight:700;text-align:right}
.hero-proof-card p{margin:18px 0 0;color:#526273}
.google-sheet-form.is-loading button{opacity:.7;pointer-events:none}
.form-status{font-size:13px;font-weight:700;margin:4px 0 0;color:#0b2545}
.form-status.success{color:#16803c}
.form-status.error{color:#b84a2b}
.map-placeholder div{text-align:center;line-height:1.5}
.map-placeholder span{font-weight:600;color:#64748b}
.map-btn{margin-top:12px}
@media (max-width:960px){.hero-cover{min-height:auto;padding:92px 0 70px}.hero-cover-grid{grid-template-columns:1fr}.hero-proof-card{max-width:520px}.hero-overlay{background:linear-gradient(180deg,rgba(7,27,51,.9),rgba(7,27,51,.7))}}
@media (max-width:640px){.hero-cover{padding:68px 0 54px}.hero-cover-content h1{font-size:36px}.hero-proof-card div{display:block}.hero-proof-card small{text-align:left;display:block;margin-top:4px}}


/* Google Maps embed */
.map-embed {
  margin-top: 18px;
  height: 260px;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #eef3f8;
  box-shadow: 0 8px 22px rgba(15,23,42,.04);
}

.map-embed iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

.site-footer a[href*="maps"] {
  color: #fff;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}


/* Google Maps embed - v32 */
.map-embed {
  margin-top: 18px;
  height: 320px;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #eef3f8;
  box-shadow: 0 8px 22px rgba(15,23,42,.06);
}

.map-embed iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

.map-btn {
  margin-top: 14px;
}

@media (max-width: 640px) {
  .map-embed {
    height: 260px;
  }
}


/* Header logo update: HB monogram only */
.site-logo{height:52px;width:52px;display:block}
.brand{flex:0 0 auto;min-width:52px}
@media (max-width:640px){.site-logo{height:48px;width:48px}.brand{min-width:48px}}