@import url('https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:wght@400;500;600;700;800&display=swap');
:root{--navy:#082f55;--navy2:#092745;--blue:#087bb8;--cyan:#23b4dc;--ink:#12314e;--muted:#617286;--line:#dce8f0;--pale:#f1f8fc;--white:#fff;--font:'Be Vietnam Pro',Arial,sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:var(--font);color:var(--ink);background:#fff;line-height:1.7;-webkit-font-smoothing:antialiased}body.menu-open{overflow:hidden}img,svg{display:block;max-width:100%}a{text-decoration:none;color:inherit}button,input,textarea{font:inherit}button{cursor:pointer}h1,h2,h3,h4,p{margin-top:0}h1,h2,h3{line-height:1.24}::selection{background:#a7e3f4;color:#073355}.container{width:min(1240px,calc(100% - 64px));margin-inline:auto}.skip-link{position:absolute;left:20px;top:-80px;z-index:40;background:#fff;color:#000;padding:8px 16px}.skip-link:focus{top:8px}.section{padding:112px 0;scroll-margin-top:82px}
.site-header{height:92px;background:rgba(255,255,255,.97);backdrop-filter:blur(18px);position:sticky;top:0;z-index:20;border-bottom:1px solid rgba(6,55,92,.08)}.header-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:32px}.brand{display:inline-flex;align-items:center;gap:9px;color:var(--navy);flex-shrink:0}.brand-symbol{width:54px;height:54px;color:#149ecb}.brand-text{display:flex;flex-direction:column;line-height:1.1}.brand-text strong{font-weight:800;letter-spacing:.065em;font-size:25px}.brand-text small{font-size:9px;letter-spacing:.17em;margin-top:5px;font-weight:700;color:#6c8194}.nav{display:flex;align-items:center;gap:32px}.nav-link{color:#31506c;font-size:13px;font-weight:600;transition:color .2s;white-space:nowrap}.nav-link:hover,.nav-link.is-active{color:#007fb7}.nav-contact{background:#0a6098;color:#fff!important;padding:13px 19px;border-radius:7px;box-shadow:0 6px 16px #07436d1a}.nav-contact:hover{background:#064a7b}.nav-contact span{padding-left:10px}.menu-toggle{display:none;background:none;border:0;width:44px;height:44px;padding:10px;flex-direction:column;justify-content:center;gap:6px}.menu-toggle span{height:2px;background:var(--navy);width:100%;transition:.2s}
.hero{position:relative;min-height:692px;overflow:hidden;display:flex;align-items:center;background:linear-gradient(115deg,#f5fbff 3%,#e7f5fc 64%,#c9e8f6 100%)}.hero-photo{position:absolute;inset:0 0 0 43%;background-image:url('img/hero-infrastructure.jpg');background-position:center right;background-size:cover;filter:saturate(1.12) contrast(1.03)}.hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,#f5fbff 0%,#f3faff 34%,rgba(241,249,255,.94) 42%,rgba(238,248,255,.64) 54%,rgba(235,247,255,.09) 78%)}.hero-glow{position:absolute;z-index:1;left:-180px;bottom:-380px;width:650px;height:650px;border-radius:50%;background:radial-gradient(circle,#6ec7ed30,transparent 67%)}.hero-grid{position:relative;z-index:2;width:min(1240px,calc(100% - 64px));display:grid;grid-template-columns:minmax(0,680px) 1fr;min-height:692px;align-items:center}.hero-copy{padding:75px 0 85px}.eyebrow,.section-kicker{font-size:11px;font-weight:800;letter-spacing:.19em;color:#0b86bd;display:flex;align-items:center;gap:11px}.eyebrow-line{width:30px;height:2px;background:#0b86bd}.hero h1{font-size:clamp(43px,4.25vw,67px);letter-spacing:-.05em;font-weight:800;color:#0a3259;margin:26px 0 23px;line-height:1.19}.hero h1 em,.section h2 em{font-style:normal;color:#0489bb}.hero p{font-size:15px;line-height:2;max-width:545px;color:#42627c}.hero-actions{display:flex;gap:27px;align-items:center;margin-top:32px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;gap:26px;border:1px solid transparent;padding:15px 22px;min-height:51px;border-radius:6px;font-size:13px;font-weight:700;transition:transform .2s,background .2s,box-shadow .2s}.btn:hover{transform:translateY(-2px)}.btn-primary{color:#fff;background:#0b78ac;box-shadow:0 14px 30px #087aaa2e}.btn-primary:hover{background:#075d93}.btn span{font-size:18px;line-height:1}.text-link{color:#0c5786;font-weight:700;font-size:13px}.text-link span{padding-left:8px}.hero-trust{margin-top:66px;font-size:10px;font-weight:800;letter-spacing:.14em;color:#66869a;display:flex;align-items:center;gap:15px}.trust-dot{width:8px;height:8px;background:#07b4b5;border-radius:100%;box-shadow:0 0 0 4px #0ab4b51f}.sep{height:12px;width:1px;background:#a6c2d2}.hero-stamp{justify-self:end;color:#fff;border:1px solid #ffffff75;border-radius:100%;width:150px;height:150px;display:flex;flex-direction:column;align-items:center;justify-content:center;transform:rotate(13deg);background:#0d5c9099;box-shadow:0 8px 50px #0029454d}.hero-stamp strong{font-size:29px;font-weight:800}.hero-stamp span{font-size:9px;letter-spacing:.14em;font-weight:700}.hero-bottom{position:absolute;z-index:3;bottom:0;left:0;right:0;height:56px;border-top:1px solid #fff8;display:flex;align-items:center;justify-content:space-between;padding-inline:max(calc((100vw - 1240px)/2),32px);color:#456b89;font-size:10px;letter-spacing:.16em;font-weight:800}
.section-kicker span{color:#77a4bc;border-right:1px solid #a5ccdf;padding-right:14px}.section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:38px}.section-head h2,.about h2,.projects h2,.contact h2{font-size:clamp(32px,3.05vw,46px);font-weight:800;letter-spacing:-.045em;margin:17px 0 0;color:var(--navy)}.section-head>p{max-width:435px;color:var(--muted);font-size:13px;line-height:1.95;margin-bottom:6px}.services{background:linear-gradient(#fff,#f7fbfe)}.services-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}.service-card{background:white;border:1px solid #e1ecf4;border-radius:16px;overflow:hidden;box-shadow:0 10px 26px #0b3a6510;display:flex;flex-direction:column;transition:transform .3s,box-shadow .3s}.service-card:hover{transform:translateY(-7px);box-shadow:0 20px 42px #0b3a6520}.service-image{height:168px;position:relative;background:#cde2ed;overflow:hidden}.service-image img{width:100%;height:100%;object-fit:cover;transition:transform .5s}.service-card:hover .service-image img{transform:scale(1.08)}.card-number{position:absolute;right:14px;top:12px;background:#063e65bd;border:1px solid #fff7;border-radius:30px;color:#fff;font-size:11px;font-weight:700;padding:3px 11px}.service-body{padding:0 23px 24px;display:flex;flex:1;flex-direction:column}.service-icon{width:59px;height:59px;border-radius:12px;background:linear-gradient(135deg,#097eb7,#09436d);border:4px solid #fff;display:grid;place-items:center;position:relative;top:-29px;margin-bottom:-13px;color:white;box-shadow:0 6px 14px #08355d20}.service-icon svg{width:30px;height:30px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}.service-body h3{font-size:16px;min-height:54px;letter-spacing:-.04em;margin:3px 0 10px;color:#0a3156;font-weight:800}.service-body p{font-size:12px;color:#687b8c;line-height:1.9;margin:0 0 24px;flex:1}.card-link{border-top:1px solid #e6eff5;padding-top:13px;font-size:11px;font-weight:800;color:#087aac;display:flex;justify-content:space-between;align-items:center}.card-link span{font-size:17px}
.about{background:#eff7fb}.about-grid{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:90px}.about-visual{position:relative;padding:15px 60px 50px 0}.about-photo{height:470px;border-radius:18px;overflow:hidden;box-shadow:0 25px 60px #093d6330}.about-photo img{width:100%;height:100%;object-fit:cover;object-position:right center}.about-badge{position:absolute;bottom:7px;right:0;width:230px;min-height:190px;padding:25px;background:#075b90;color:#fff;border:8px solid #eff7fb;border-radius:15px}.about-badge span{font-size:10px;font-weight:700;letter-spacing:.2em;color:#b1e1f8}.about-badge strong{font-size:23px;line-height:1.3;display:block;margin-top:12px}.about-badge svg{position:absolute;width:35px;right:19px;bottom:19px;fill:none;stroke:#b0e9fb;stroke-width:2}.about-content>p{font-size:13px;color:#5c7186;line-height:2.12;margin-top:23px}.about-content h2{margin-bottom:25px}.value-list{display:grid;gap:15px;margin:25px 0 32px}.value-list>div{display:flex;gap:12px;align-items:center;font-size:13px;font-weight:700;color:#1a4768}.value-mark{background:#d3eefa;color:#087aad;border-radius:50%;height:27px;width:27px;display:grid;place-items:center}.btn-outline{border-color:#2185b6;color:#0b6398;background:transparent}.btn-outline:hover{background:#d9eff9}
.strengths{background:#073659;color:#fff;position:relative;overflow:hidden}.strengths:before{content:'';position:absolute;width:650px;height:650px;right:-200px;top:-250px;border-radius:100%;border:1px solid #ffffff20;box-shadow:0 0 0 100px #ffffff05,0 0 0 200px #ffffff05}.section-kicker.light{color:#8bd8f2}.strengths h2{font-size:clamp(32px,3vw,46px);letter-spacing:-.05em;margin:18px 0 48px}.strengths h2 em{color:#73d3f1}.strength-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}.strength-item{padding:5px 30px;border-left:1px solid #ffffff36}.strength-item:first-child{border-left:0;padding-left:0}.strength-icon{width:55px;height:55px;display:grid;place-items:center;border:1px solid #8ad5f066;border-radius:100%;font-size:27px;color:#9cdef3}.strength-item h3{font-size:19px;margin:22px 0 7px}.strength-item p{font-size:12px;color:#bed1dc;line-height:2;max-width:220px}
.projects{background:#fff}.project-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.project-card{border-radius:15px;position:relative;height:290px;overflow:hidden;background:#0d456e}.project-card:after{content:'';position:absolute;inset:0;background:linear-gradient(0deg,#052e4de0,transparent 72%)}.project-card img{width:100%;height:100%;object-fit:cover;transition:transform .5s}.project-card:hover img{transform:scale(1.07)}.project-card>div{position:absolute;z-index:1;left:25px;bottom:22px;color:#fff}.project-card span{font-size:10px;color:#9fdcf3;font-weight:800;letter-spacing:.18em}.project-card h3{font-size:19px;margin:9px 0 0}.project-note{font-size:11px;color:#8192a0;margin-top:16px}
.contact{background:linear-gradient(125deg,#07395e,#07598a);color:#fff;position:relative}.contact:before{content:'';position:absolute;width:50%;height:100%;top:0;right:0;background:radial-gradient(circle at top right,#18b2dc28,transparent 70%);pointer-events:none}.contact-grid{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:90px;align-items:center}.contact h2{color:#fff;font-size:clamp(35px,3.5vw,52px);margin:22px 0}.contact h2 em{color:#8bdaf2}.contact-content>p{font-size:14px;line-height:2;color:#c0d7e3;max-width:445px}.contact-details{display:grid;gap:18px;margin-top:40px}.contact-details>div{display:flex;align-items:center;gap:16px}.detail-icon{height:44px;width:44px;border-radius:9px;background:#ffffff1d;color:#c1eeff;display:grid;place-items:center;font-size:22px}.contact-details>div>span:last-child{display:flex;flex-direction:column}.contact-details small{font-size:10px;letter-spacing:.15em;color:#82c9e8;font-weight:800}.contact-details strong{font-size:13px;font-weight:600;margin-top:5px}.contact-form{background:#fff;color:#143a58;border-radius:15px;padding:38px;box-shadow:0 23px 55px #00294533}.contact-form h3{font-size:22px;margin:0 0 4px;color:#0a3155}.contact-form>p:not(.form-note){font-size:12px;color:#6a8294;margin-bottom:22px}.contact-form label{display:block;font-size:12px;font-weight:700;margin-bottom:15px;color:#34566c}.contact-form input,.contact-form textarea{width:100%;display:block;border:1px solid #d8e5ec;background:#f8fbfd;color:#163b57;padding:12px 13px;margin-top:7px;border-radius:7px;font-weight:400;outline:none;transition:border .2s}.contact-form input:focus,.contact-form textarea:focus{border-color:#0786ba;box-shadow:0 0 0 3px #0986b61b}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}.contact-form .btn{width:100%;margin-top:5px}.form-note{font-size:10px;color:#8798a6;line-height:1.7;margin:13px 0 0}.form-note.form-error{color:#b52e2e;font-weight:700}
.site-footer{background:#051e34;color:#b4cad8;padding:65px 0 0}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.5fr;gap:40px;padding-bottom:50px}.footer-brand{color:white}.footer-brand .brand-text small{color:#84aec2}.footer-grid>div>p{color:#91a9ba;font-size:12px;line-height:2;margin-top:22px}.footer-grid h4{font-size:13px;color:white;margin:5px 0 19px}.footer-grid>div>a:not(.brand),.footer-grid>div>span{display:block;font-size:12px;margin-bottom:9px;color:#a0bdcc}.footer-grid>div>a:hover{color:#fff}.footer-bottom{border-top:1px solid #ffffff20;display:flex;justify-content:space-between;gap:20px;padding:22px 0;font-size:11px;color:#809baa}
.reveal{opacity:0;transform:translateY(20px);transition:opacity .65s ease,transform .65s ease}.reveal.is-visible{opacity:1;transform:translateY(0)}.service-card:nth-child(2){transition-delay:.07s}.service-card:nth-child(3){transition-delay:.14s}.service-card:nth-child(4){transition-delay:.21s}
@media(max-width:1100px){.nav{gap:18px}.nav-link{font-size:12px}.services-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.service-image{height:190px}.about-grid,.contact-grid{gap:45px}.hero-stamp{display:none}.hero-grid{grid-template-columns:680px 1fr;max-width:100%}.hero-photo{left:39%}}
@media(max-width:760px){.container,.hero-grid{width:min(100% - 36px,570px)}.site-header{height:72px}.brand-symbol{height:44px;width:44px}.brand-text strong{font-size:21px}.brand-text small{font-size:8px}.menu-toggle{display:flex}.nav{position:absolute;top:72px;left:0;right:0;background:white;padding:22px 24px 28px;display:none;flex-direction:column;align-items:stretch;gap:0;box-shadow:0 20px 25px #102c4721}.nav.is-open{display:flex}.nav-link{display:block;padding:12px 8px;font-size:14px;border-bottom:1px solid #eef3f7}.nav-contact{margin-top:16px;text-align:center}.section{padding:76px 0}.hero{min-height:720px;align-items:start}.hero-photo{inset:0 0 49% 0;background-position:center}.hero-overlay{background:linear-gradient(0deg,#f3fbff 44%,#eef9ffc7 62%,#f3fbff00 100%)}.hero-grid{min-height:720px;grid-template-columns:1fr;align-items:end}.hero-copy{padding:265px 0 85px}.hero h1{font-size:clamp(35px,8vw,53px);margin:18px 0}.hero p{font-size:12px;line-height:1.9}.hero-trust{margin-top:36px;gap:8px;font-size:9px}.hero-bottom{padding-inline:18px}.section-head{display:block}.section-head>p{margin-top:16px}.services-grid{gap:18px}.service-image{height:145px}.about-grid,.contact-grid{grid-template-columns:1fr;gap:40px}.about-visual{max-width:490px}.about-photo{height:340px}.strength-grid{grid-template-columns:repeat(2,1fr);row-gap:26px}.strength-item:nth-child(3){border-left:0;padding-left:0}.project-grid{grid-template-columns:1fr}.project-card{height:240px}.footer-grid{grid-template-columns:1fr 1fr;gap:35px}.contact-form{padding:28px}.form-row{grid-template-columns:1fr;gap:0}}
@media(max-width:500px){.hero{min-height:740px}.hero-grid{min-height:740px}.hero-copy{padding-top:258px}.hero-actions{align-items:flex-start;gap:15px;flex-direction:column}.hero h1{font-size:35px}.eyebrow{font-size:9px;letter-spacing:.1em}.services-grid{grid-template-columns:1fr}.service-image{height:190px}.service-body h3{min-height:auto}.about-visual{padding:0 30px 35px 0}.about-photo{height:305px}.about-badge{width:170px;min-height:145px;padding:17px}.about-badge strong{font-size:18px}.about-badge svg{width:27px}.strength-grid{grid-template-columns:1fr}.strength-item,.strength-item:nth-child(3){border-left:0;border-top:1px solid #ffffff24;padding:22px 0 0}.strength-item:first-child{border-top:0}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child,.footer-grid>div:last-child{grid-column:1/-1}.footer-bottom{flex-direction:column;gap:6px}.contact-form{padding:24px}.hero-trust{letter-spacing:.045em}.hero-bottom{font-size:9px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}.reveal{opacity:1;transform:none}}
/* Hải Sư brand adjustments: use the ORIGINAL raster logo supplied by the owner. */
.brand-logo{width:62px;height:62px;object-fit:contain;display:block;flex:none;background:#fff;border-radius:50%;padding:2px}
.footer-brand .brand-logo{width:66px;height:66px}
.hero-stamp{width:164px;height:164px;background:#fff;border:5px solid #ffffffd8;transform:rotate(0deg);box-shadow:0 14px 50px #0029453d;overflow:hidden}
.hero-stamp-logo{width:100%;height:100%;object-fit:contain;border-radius:50%}
.service-body h3{white-space:pre-line}
.about-badge strong{white-space:normal}
.contact-details [data-edit-key]:empty::before{content:'Chưa cập nhật';opacity:.8;font-style:italic}
.hero-photo{background-image:url('img/hero-infrastructure.jpg')}
@media(max-width:760px){.brand-logo{width:48px;height:48px}.brand-text strong{font-size:18px}.brand-text small{font-size:7px}.hero-stamp{display:none}}

/* V2.1 — Restrict header logo size and allow separate footer logo scaling. */
.site-header .header-inner{min-width:0}
.site-header .brand{min-width:0;max-height:100%;overflow:visible}
.site-header .brand-logo{
  box-sizing:border-box!important;
  width:clamp(28px,var(--header-logo-size,60px),78px)!important;
  height:clamp(28px,var(--header-logo-size,60px),78px)!important;
  min-width:0!important;max-width:78px!important;max-height:calc(92px - 12px)!important;
  object-fit:contain!important;flex:0 0 auto!important;
  padding:1px!important;border-radius:50%!important;
}
.site-footer .footer-brand .brand-logo{
  box-sizing:border-box!important;
  width:clamp(40px,var(--footer-logo-size,76px),140px)!important;
  height:clamp(40px,var(--footer-logo-size,76px),140px)!important;
  min-width:0!important;max-width:140px!important;max-height:140px!important;
  object-fit:contain!important;flex:0 0 auto!important;
  padding:1px!important;border-radius:50%!important;
}
.site-header .brand-text{min-width:0}
@media(max-width:760px){
  .site-header .brand-logo{
    width:min(var(--header-logo-size,60px),56px)!important;
    height:min(var(--header-logo-size,60px),56px)!important;
    max-height:56px!important;
  }
}

.hp-field{position:absolute!important;left:-10000px!important;width:1px!important;height:1px!important;opacity:0!important;pointer-events:none!important}
.contact-form button:disabled{opacity:.58;cursor:wait}