:root{--navy:#081522;--navy2:#102234;--gold:#d7ae58;--light:#f5f6f7;--ink:#152333}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:#fff}a{text-decoration:none;color:inherit}button,input,select,textarea{font:inherit}button{cursor:pointer}.header{height:84px;background:var(--navy);color:white;display:flex;align-items:center;justify-content:space-between;padding:0 max(5%,calc((100vw - 1300px)/2));position:sticky;top:0;z-index:10;border-bottom:1px solid #334052}.brand{display:flex;align-items:center;gap:15px}.brand strong{display:block;letter-spacing:2px;font-size:19px}.brand small{font-size:10px;letter-spacing:2px;color:#aeb8c4}.monogram{font-size:32px;font-weight:900;font-style:italic;color:var(--gold);border-right:1px solid var(--gold);padding-right:16px}.header nav{display:flex;align-items:center;gap:24px}.header nav a{font-size:13px;font-weight:700}.header nav a:hover{color:var(--gold)}.lang,.menu{background:transparent;border:1px solid var(--gold);color:var(--gold);padding:8px 12px}.menu{display:none}.hero{min-height:580px;position:relative;display:flex;align-items:center;background:linear-gradient(115deg,#0c1b2b 8%,#1c3546 48%,#986537 100%);overflow:hidden}.hero:after{content:'';position:absolute;right:-9%;bottom:-35%;width:60%;height:115%;background:repeating-linear-gradient(0deg,transparent 0 18px,#d68c4c 20px 28px,#512b1c 29px 32px);transform:skew(-12deg);opacity:.4;filter:blur(1px)}.hero-shade{position:absolute;inset:0;background:linear-gradient(90deg,#07121fe8,transparent)}.hero-inner{position:relative;z-index:1;max-width:1250px;width:90%;margin:auto;color:white}.eyebrow{color:var(--gold);font-size:12px;letter-spacing:3px;font-weight:700}.hero h1{font-size:clamp(36px,5vw,70px);line-height:1.12;margin:24px 0;max-width:900px}.hero h1 em{font-style:normal;color:var(--gold)}.hero p{font-size:18px;line-height:1.7;margin-bottom:35px}.btn{display:inline-block;background:linear-gradient(120deg,#e8c675,#bc8c35);color:#0c1825;border:0;border-radius:3px;padding:16px 24px;font-size:13px;font-weight:800;letter-spacing:.6px}.btn:hover{filter:brightness(1.12)}.benefits{background:#0b1a29;color:white;display:flex;justify-content:space-around;gap:20px;padding:22px 5%;flex-wrap:wrap;font-size:13px}.section{max-width:1320px;margin:auto;padding:88px 5%}.section-head{text-align:center}.section h2{font-size:clamp(26px,3vw,38px);margin:12px 0 18px}.section-head p{color:#66717c}.filters{display:flex;justify-content:center;gap:10px;margin:30px 0}.filter{background:#fff;border:1px solid #cfd3d8;padding:10px 20px}.filter.active{background:var(--navy);color:var(--gold);border-color:var(--navy)}.cards{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:15px}.card{background:var(--navy);color:white;border-radius:5px;overflow:hidden;display:flex;flex-direction:column}.card-image{height:160px;display:flex;align-items:center;justify-content:center;font-size:65px;background:linear-gradient(145deg,#243c4b,#0b1825 70%);border-bottom:2px solid var(--gold)}.card:nth-child(2) .card-image{background:linear-gradient(135deg,#78818b,#263748)}.card:nth-child(4) .card-image{background:linear-gradient(135deg,#b89a58,#172738)}.card h3{font-size:16px;margin:20px 15px 5px}.card p{font-size:12px;color:#c3c9d0;margin:0 15px 20px;flex:1}.card button{background:transparent;border:0;border-top:1px solid #35414b;color:var(--gold);padding:14px;text-align:left;font-weight:bold}.about{display:grid;grid-template-columns:1fr 1fr;gap:55px;align-items:center}.about-art{min-height:360px;background:linear-gradient(145deg,#122739,#405767 55%,#c49b52);display:flex;align-items:flex-end;padding:35px;color:white;font-size:25px;letter-spacing:4px}.about-art b{font-size:42px;color:var(--gold)}.about p{line-height:1.9;color:#52606e}.outline{display:inline-block;border:1px solid #b98c36;padding:15px 20px;margin-top:15px;color:#715018;font-size:12px;font-weight:bold}.quote-section{max-width:none;background:var(--navy);color:white;display:grid;grid-template-columns:1fr 1.2fr;gap:70px;padding-left:max(5%,calc((100vw - 1180px)/2));padding-right:max(5%,calc((100vw - 1180px)/2))}.quote-section p{line-height:1.8;color:#c5cbd3}.quote-section form{background:#142638;padding:30px;border:1px solid #2f3c49}.fields{display:grid;grid-template-columns:1fr 1fr;gap:16px}label{display:block;font-size:13px;margin-bottom:16px}label span{display:block;margin-bottom:7px}input,select,textarea{width:100%;padding:13px;border:1px solid #9aa7b5;border-radius:2px;background:white;color:#162536}textarea{resize:vertical}.full{width:100%}.quote-section .note{font-size:11px;line-height:1.5;color:#aeb8c4}.contact{text-align:center}.contact p{color:#6c7884}.contact a{color:#946a22}footer{text-align:center;padding:25px;background:#071522;color:#c3cbd3;font-size:12px}@media(max-width:950px){.menu{display:block}.header nav{display:none;position:absolute;top:84px;left:0;right:0;background:#081522;padding:24px;flex-direction:column;align-items:stretch}.header nav.open{display:flex}.cards{grid-template-columns:repeat(2,1fr)}.about,.quote-section{grid-template-columns:1fr}.quote-section{gap:25px}}@media(max-width:540px){.header{padding:0 5%}.brand strong{font-size:13px}.brand small{font-size:8px}.monogram{font-size:23px}.hero{min-height:500px}.hero p{font-size:15px}.cards{grid-template-columns:1fr}.card-image{height:180px}.fields{grid-template-columns:1fr}.section{padding:60px 5%}.about-art{min-height:250px}.about-art b{font-size:30px}}
/* Mobile-first refinements, v1.2 */
@media(max-width:600px){
 body{padding-bottom:69px}
 .header{height:70px;padding:0 16px}
 .header nav{top:70px;max-height:calc(100dvh - 70px);overflow-y:auto;box-shadow:0 18px 30px #0008}
 .header nav a{padding:10px 0;border-bottom:1px solid #ffffff20;font-size:15px}
 .brand{gap:9px}.brand strong{font-size:12px;letter-spacing:.6px}.brand small{font-size:8px;letter-spacing:1px}
 .monogram{font-size:24px;padding-right:10px}
 .menu{font-size:22px;padding:5px 11px;min-width:44px;min-height:44px}
 .hero{min-height:455px}.hero-inner{width:auto;margin:0;padding:48px 20px}
 .hero h1{font-size:clamp(31px,8.6vw,43px);line-height:1.16;margin:18px 0}
 .hero p{font-size:14px;line-height:1.6;margin-bottom:25px}
 .hero:after{right:-45%;width:95%;opacity:.22}
 .benefits{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px;padding:18px 9px;font-size:10px;text-align:center;line-height:1.5}
 .section{padding:48px 16px}.section h2{font-size:25px;line-height:1.2}
 .filters{gap:8px;margin:22px 0;justify-content:stretch}.filter{flex:1;min-height:42px;padding:8px 5px;font-size:12px;border-radius:5px}
 .cards{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
 .card-image{height:120px;font-size:49px}.card h3{font-size:14px;margin:12px 10px 5px;line-height:1.35}
 .card p{font-size:11px;margin:0 10px 12px;line-height:1.4}.card button{padding:11px 9px;font-size:11px;min-height:45px}
 .about{gap:20px}.about-art{min-height:205px;padding:20px;font-size:17px}.about-art b{font-size:27px}
 .quote-section{padding:48px 16px;gap:15px}.quote-section form{padding:18px 14px}.fields{grid-template-columns:1fr;gap:0}
 input,select,textarea{font-size:16px;min-height:46px}.btn{min-height:46px}
 .mobile-actions{position:fixed;bottom:0;left:0;right:0;z-index:20;display:grid;grid-template-columns:1fr 1fr;background:#071522;border-top:1px solid #d7ae58;box-shadow:0 -8px 25px #0003;padding-bottom:env(safe-area-inset-bottom)}
 .mobile-actions a{min-height:60px;display:flex;justify-content:center;align-items:center;gap:8px;color:#f4d28c;font-size:13px;font-weight:700}
 .mobile-actions a+a{background:#d7ae58;color:#071522}
}
@media(min-width:601px){.mobile-actions{display:none}}
@media(max-width:360px){.brand small{display:none}.brand strong{font-size:11px}.card-image{height:100px}.card h3{font-size:13px}}

/* Brand and production enhancements */
.brand-logo{width:61px;height:61px;object-fit:contain;background:#fff;border-radius:50%;padding:3px;flex-shrink:0}
.hero{background:#061321 url('../assets/banner.jpg') center/cover no-repeat}
.hero-shade{background:linear-gradient(90deg,rgba(4,16,29,.96),rgba(4,16,29,.75) 52%,rgba(4,16,29,.2))}
.hero:after{display:none}
.card-image{position:relative;overflow:hidden}
.card-image img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .4s}
.card:hover .card-image img{transform:scale(1.07)}
.about-art{background:linear-gradient(0deg,rgba(7,20,34,.82),rgba(7,20,34,.15)),url('../assets/about.jpg') center/cover}
.contact-details{margin:25px auto;max-width:750px}.contact-details p{line-height:1.6}.contact-details a{overflow-wrap:anywhere}
.zalo-float{position:fixed;bottom:26px;right:24px;background:#1769e0;color:white;z-index:25;border-radius:50px;padding:15px 17px;box-shadow:0 8px 24px #0004;font-weight:800;font-size:14px}
:focus-visible{outline:3px solid #e5b34c;outline-offset:3px}
@media(max-width:600px){.brand-logo{width:46px;height:46px}.mobile-actions{grid-template-columns:repeat(3,minmax(0,1fr))}.mobile-actions a{font-size:12px}.mobile-actions a:nth-child(2){background:#1769e0;color:#fff}.mobile-actions a:nth-child(3){background:#d7ae58;color:#071522}.zalo-float{bottom:84px;right:14px;padding:12px;font-size:12px}.hero{background-position:60% center}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.card-image img{transition:none}}

/* LME market block on homepage */
.market-home{background:#0a1b2c;color:#f8f6f0}.market-home .section-head h2{color:#fff}.market-home .section-head p{color:#c7d0d9}.market-home-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;max-width:1100px;margin:30px auto}.market-home-card{display:flex;align-items:center;gap:22px;border:1px solid #6c5b41;background:linear-gradient(135deg,#152c40,#0a1928);padding:28px;min-width:0}.market-home-icon{display:grid;place-items:center;flex-shrink:0;width:65px;height:65px;border:1px solid #caa76a;border-radius:50%;font-size:23px;font-weight:700;color:#e8c487}.market-home-card h3{color:white;margin:0 0 8px;font-size:22px}.market-home-card p{color:#bfcbd3;margin:0 0 12px}.market-home-card strong{color:#e9c584;font-size:15px}.market-home-actions{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:22px}.market-home-link{color:#e9c584}.market-home-note{max-width:950px;margin:24px auto 0;text-align:center;font-size:13px;line-height:1.6;color:#bdc8d1}@media(max-width:700px){.market-home-grid{grid-template-columns:1fr}.market-home-card{padding:20px;gap:16px}.market-home-icon{width:55px;height:55px}.market-home-card h3{font-size:19px}.market-home-actions .btn{width:100%;text-align:center}}

/* v2.3: LME panel in hero, responsive vertical cards on phones */
.hero{min-height:610px}.hero-inner.hero-grid{max-width:1480px;width:94%;display:grid;grid-template-columns:minmax(0,1fr) minmax(430px,.94fr);gap:36px;align-items:center;padding:55px 0}.hero-copy{min-width:0}.hero-copy h1{font-size:clamp(34px,3.6vw,56px)}.hero-copy p{font-size:16px}.market-panel{background:rgba(7,24,40,.97);border:1px solid #b89a63;box-shadow:0 15px 45px #0006;border-radius:12px;padding:22px;color:#fff;position:relative;z-index:2;scroll-margin-top:110px}.market-panel-head{display:flex;justify-content:space-between;align-items:center;gap:12px}.market-panel-head h2{font-size:21px;line-height:1.3;margin:7px 0 0;color:#fff}.source-link,.market-table a,.market-panel-footer a{color:#f0cb80}.market-description{color:#c9d3df;font-size:12px!important;margin:13px 0 16px!important;line-height:1.5!important}.market-table{width:100%;border-collapse:collapse;font-size:12px}.market-table th{text-align:left;color:#e7c37a;background:#1c374c;padding:12px 9px}.market-table td{padding:11px 9px;border-bottom:1px solid #415062}.market-table td:first-child{display:flex;align-items:center;gap:10px}.symbol{display:inline-grid;place-items:center;width:35px;height:35px;flex-shrink:0;border-radius:5px;background:#e4b75e;color:#132438;font-weight:800;font-size:13px}.awaiting{color:#b9c6d0}.market-panel-footer{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:17px;font-size:11px;color:#b9c6d0;line-height:1.6}.market-panel-footer a{white-space:nowrap}.market-mobile-list{display:none}.hero-shade{background:linear-gradient(90deg,rgba(4,16,29,.96),rgba(4,16,29,.65))}#products{scroll-margin-top:90px}@media(max-width:1050px){.hero-inner.hero-grid{grid-template-columns:1fr;gap:28px;max-width:750px}.hero{min-height:unset}.hero-copy h1{font-size:clamp(34px,6vw,54px)}.market-panel{width:100%}}@media(max-width:650px){.hero-inner.hero-grid{width:100%;padding:35px 16px 40px;gap:25px}.hero-copy{padding:0 4px}.hero-copy h1{font-size:clamp(30px,8vw,42px)}.hero-copy p{font-size:14px}.market-panel{padding:17px 14px;border-radius:10px}.market-panel-head h2{font-size:18px}.market-description{font-size:12px!important}.market-table-wrap{display:none}.market-mobile-list{display:grid;gap:8px}.market-mobile-list a{display:flex;align-items:center;gap:12px;background:#162d40;border:1px solid #3a5365;border-radius:8px;padding:10px 12px;min-height:66px}.market-mobile-list a:nth-child(-n+2){border-color:#b79b63}.market-mobile-list a>span:nth-child(2){display:grid;gap:5px;min-width:0}.market-mobile-list b{font-size:14px}.market-mobile-list small{font-size:11px;color:#c6d0da}.market-mobile-list .arrow{margin-left:auto;color:#f0cb80;font-size:20px}.market-panel-footer{display:grid;gap:8px}.market-panel-footer a{font-size:12px}.hero{background-position:center}.hero-inner{margin:0}.hero-shade{background:linear-gradient(90deg,rgba(4,16,29,.92),rgba(4,16,29,.74))}}

/* v2.5: ảnh thật, thanh liên hệ, dải tiện ích có biểu tượng */
.hero-shade{background:linear-gradient(90deg,rgba(4,16,29,.55),rgba(4,16,29,.18) 60%,rgba(4,16,29,.1))}
.hero-copy h1,.hero-copy p{text-shadow:0 2px 14px rgba(0,0,0,.55)}
.card-image{height:170px;font-size:0}
.topbar{background:#0b1a29;color:#d9e0e7;font-size:13px;border-bottom:1px solid #26384a}
.topbar-inner{max-width:1480px;margin:auto;padding:10px max(3%,16px);display:flex;align-items:center;justify-content:space-between;gap:22px;flex-wrap:wrap}
.tb-item{display:inline-flex;align-items:center;gap:9px;line-height:1.4}
a.tb-item:hover{color:var(--gold)}
.tb-item svg{width:18px;height:18px;flex-shrink:0;fill:none;stroke:var(--gold);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.tb-item b{color:#fff}
.zalo-badge{background:#1769e0;color:#fff;font-weight:800;font-size:11px;padding:3px 7px;border-radius:5px}
.benefits{gap:14px;padding:20px 5%}
.benefits span{display:inline-flex;align-items:center;gap:12px;font-size:14px}
.benefits svg{width:30px;height:30px;flex-shrink:0;fill:none;stroke:var(--gold);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.benefits b{font-weight:600}
@media(max-width:950px){.topbar{display:none}}
@media(max-width:600px){.benefits{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 10px;padding:18px 14px;text-align:left;font-size:12px}.benefits span{gap:9px;font-size:12px}.benefits svg{width:24px;height:24px}.card-image{height:120px}.hero{background-position:68% center}}

/* v2.7: mục Giới thiệu đầy đủ */
.about-top{display:grid;grid-template-columns:1fr 1fr;gap:55px;align-items:center}
.about-top p{line-height:1.85;color:#52606e;margin:0 0 14px}
.about-top .about-slogan{color:#946a22;font-weight:700;letter-spacing:2px;font-size:14px;margin:4px 0 18px}
.about-top .about-pillars{border-left:3px solid var(--gold);padding:6px 0 6px 16px;color:var(--navy);font-weight:700;margin:20px 0 8px}
.about-block{margin-top:72px}
.about-h{text-align:center;font-size:clamp(22px,2.6vw,30px);margin:0 0 28px;color:var(--navy);letter-spacing:.5px}
.about-h:after{content:'';display:block;width:56px;height:3px;background:var(--gold);margin:14px auto 0}
.fields-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.field-card{background:var(--navy);color:#fff;padding:32px;border-radius:6px;border-top:3px solid var(--gold)}
.field-card h4{margin:0 0 12px;font-size:20px;color:var(--gold);line-height:1.35}
.field-card p{color:#c9d1d9;line-height:1.75;font-size:14.5px;margin:0}
.field-card ul{list-style:none;padding:0;margin:16px 0;display:grid;gap:9px}
.field-card li{position:relative;padding-left:26px;font-size:15px;color:#fff}
.field-card li:before{content:'✓';position:absolute;left:0;color:var(--gold);font-weight:800}
.field-card .field-note{margin-top:6px;padding-top:16px;border-top:1px solid #2f3c49}
.vm-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.vm-card{background:var(--light);border:1px solid #e1e5ea;padding:32px;border-radius:6px}
.vm-card h3{margin:0 0 14px;font-size:22px;color:var(--navy);letter-spacing:1px}
.vm-card h3:after{content:'';display:block;width:42px;height:3px;background:var(--gold);margin-top:10px}
.vm-card p{line-height:1.8;color:#52606e;margin:0 0 12px}
.vm-card .vm-tag{color:#946a22;font-weight:700;font-style:italic}
.values-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:14px}
.value-card{border:1px solid #dde2e8;border-top:3px solid var(--gold);padding:22px 18px;border-radius:4px;background:#fff}
.value-no{display:block;font-size:13px;color:#b98c36;font-weight:800;letter-spacing:2px;margin-bottom:8px}
.value-card h4{margin:0 0 10px;font-size:16px;color:var(--navy);letter-spacing:.5px}
.value-card p{margin:0;font-size:13.5px;line-height:1.7;color:#5b6773}
.dev-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.dev-grid h3{margin:0 0 14px;font-size:21px;color:var(--navy)}
.dev-grid h3:after{content:'';display:block;width:42px;height:3px;background:var(--gold);margin-top:10px}
.dev-grid p{line-height:1.85;color:#52606e;margin:0 0 12px}
.closing{margin-top:64px;background:linear-gradient(120deg,#081522,#14304a);color:#fff;text-align:center;padding:40px 20px;border-radius:6px;border:1px solid #b89a63}
.closing b{display:block;color:var(--gold);font-size:clamp(17px,2.4vw,26px);letter-spacing:2px;line-height:1.4}
.closing span{display:block;margin-top:10px;font-style:italic;color:#c9d1d9;letter-spacing:1px}
@media(max-width:950px){.about-top,.fields-grid,.vm-grid,.dev-grid{grid-template-columns:1fr}.about-top{gap:28px}.dev-grid{gap:28px}.values-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.about-block{margin-top:52px}}
@media(max-width:600px){.field-card,.vm-card{padding:22px 18px}.values-grid{grid-template-columns:1fr}.closing{margin-top:44px;padding:30px 16px}.about-block{margin-top:44px}}

/* DHA partners section */
.partners-section{padding-top:70px;padding-bottom:75px;text-align:center;background:linear-gradient(145deg,#0b1b2a,#102637);color:#f5f0e9}
.partners-section h2{margin:10px auto 12px;color:#fff}.partners-intro{max-width:720px;margin:0 auto 30px;color:#c5d0d7}
.partners-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;max-width:1160px;margin:0 auto;text-align:left}
.partner-card{display:flex;align-items:center;gap:13px;min-height:85px;padding:18px 20px;background:rgba(255,255,255,.055);border:1px solid rgba(200,157,92,.3);border-radius:12px;font-weight:600;line-height:1.45;color:#f3f1eb}
.partner-symbol{color:#c69c61;font-size:15px;flex:none}
@media(max-width:900px){.partners-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:560px){.partners-grid{grid-template-columns:1fr}.partners-section{padding-top:45px;padding-bottom:50px}.partner-card{min-height:68px}}

/* v3.2: keep the first Vietnamese hero headline on a single line on phones. */
@media (max-width:650px){
 .hero-copy h1 .hero-title-first{display:inline-block;white-space:nowrap;font-size:clamp(16px,5.05vw,26px);letter-spacing:-.035em;line-height:1.18}
 .hero-copy h1{overflow:visible}
}

/* v3.7: keep portfolio heading on one line on mobile */
@media (max-width: 650px) {
  #products .section-head h2 {
    font-size: clamp(12px, 3.55vw, 20px);
    line-height: 1.25;
    letter-spacing: -0.035em;
    white-space: nowrap;
    overflow-wrap: normal;
    word-break: normal;
  }
}