:root{
    --bg:#F6F8FB; --surface:#FFFFFF; --ink:#101828; --ink-soft:#5B6472;
    --primary:#0B4C8C; --primary-dark:#083A6C; --primary-tint:#EAF2FB;
    --accent:#0E9384; --accent-tint:#E4F5F2;
    --gold:#B5860B; --gold-tint:#FBF1DD;
    --border:#E3E7EE; --shadow:0 2px 10px rgba(16,24,40,.06), 0 1px 2px rgba(16,24,40,.05);
    --shadow-lg:0 12px 28px rgba(11,76,140,.12);
    --r:14px; --rs:10px;
  }
  @media (prefers-color-scheme: dark){
    :root{
      --bg:#0E1420; --surface:#161D2B; --ink:#EDEFF3; --ink-soft:#9AA3B2;
      --primary:#5B9BE0; --primary-dark:#7FB1EA; --primary-tint:#1B2A3F;
      --accent:#4FBFAE; --accent-tint:#152825; --gold:#E0B646; --gold-tint:#2A2515;
      --border:#252E40; --shadow:0 2px 10px rgba(0,0,0,.3); --shadow-lg:0 14px 30px rgba(0,0,0,.4);
    }
  }
  html{scroll-padding-top:80px; scroll-behavior:smooth;}
  *{box-sizing:border-box;}
  body{margin:0; background:var(--bg); color:var(--ink); font-family:'Inter',sans-serif; font-size:15.5px; line-height:1.65; -webkit-font-smoothing:antialiased;}
  h1,h2,h3{font-family:'Plus Jakarta Sans',sans-serif; font-weight:800; letter-spacing:-.01em; line-height:1.15; margin:0;}
  a{color:inherit;}
  .wrap{max-width:1120px; margin:0 auto; padding:0 24px;}
  header{position:sticky; top:0; background:rgba(246,248,251,.92); backdrop-filter:blur(8px); border-bottom:1px solid var(--border); z-index:20;}
  @media (prefers-color-scheme:dark){ header{background:rgba(14,20,32,.92);} }
  nav.wrap{display:flex; align-items:center; justify-content:space-between; height:72px;}
  .brand{font-family:'Plus Jakarta Sans',sans-serif; font-weight:800; font-size:19px; display:flex; align-items:center; gap:10px;}
  .navlinks{display:flex; align-items:center; gap:6px; font-size:14.5px;}
  .navlinks button{background:none;border:none;font:inherit;color:var(--ink-soft);cursor:pointer;padding:9px 16px;border-radius:999px;font-weight:600;}
  .navlinks button.active{color:var(--primary); background:var(--primary-tint);}
  .navlinks .cta{background:var(--primary); color:#fff; margin-left:6px;}
  @media (max-width:640px){ .navlinks{gap:2px; font-size:13px;} .navlinks button{padding:8px 10px;} .wrap{padding:0 16px;} }

  .hero{padding:64px 0 56px;}
  .hero-grid{display:grid; grid-template-columns:1.15fr 1fr; gap:48px; align-items:center;}
  @media (max-width:840px){ .hero-grid{grid-template-columns:1fr;} }
  .eyebrow{display:inline-flex; align-items:center; gap:8px; background:var(--accent-tint); color:var(--accent); font-weight:700; font-size:13px; padding:6px 14px; border-radius:999px; margin-bottom:18px;}
  .hero h1{font-size:clamp(30px,4.4vw,46px); max-width:18ch;}
  .hero p.lede{max-width:46ch; color:var(--ink-soft); margin:18px 0 26px; font-size:16.5px;}
  .cta-row{display:flex; gap:12px; flex-wrap:wrap;}
  .btn{display:inline-flex; align-items:center; gap:6px; padding:13px 22px; font-size:15px; font-weight:700; text-decoration:none; cursor:pointer; border-radius:var(--rs); border:1px solid transparent;}
  .btn-primary{background:var(--primary); color:#fff; box-shadow:var(--shadow-lg);}
  .btn-ghost{background:var(--surface); color:var(--ink); border-color:var(--border);}
  .hero-card{background:var(--surface); border-radius:var(--r); box-shadow:var(--shadow-lg); padding:8px;}
  .hero-card .row{display:flex; justify-content:space-between; align-items:center; padding:16px 18px; border-bottom:1px solid var(--border);}
  .hero-card .row:last-child{border-bottom:none;}
  .hero-card .label{color:var(--ink-soft); font-size:14px;}
  .hero-card .num{font-family:'Plus Jakarta Sans',sans-serif; font-weight:800; font-size:22px; color:var(--primary);}

  section{padding:64px 0;}
  .section-head{margin-bottom:32px;}
  .section-head .kicker{color:var(--accent); font-weight:700; font-size:13px; text-transform:uppercase; letter-spacing:.06em; margin-bottom:8px; display:block;}
  .section-head h2{font-size:30px;}
  .section-lede{color:var(--ink-soft); max-width:62ch; margin-top:10px;}
  .section-alt{background:var(--surface); border-top:1px solid var(--border); border-bottom:1px solid var(--border);}

  .card{background:var(--surface); border:1px solid var(--border); border-radius:var(--r); box-shadow:var(--shadow); padding:24px;}

  .why-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:18px;}
  @media (max-width:840px){ .why-grid{grid-template-columns:1fr 1fr;} }
  @media (max-width:560px){ .why-grid{grid-template-columns:1fr;} }
  .why-item .ico{width:40px;height:40px;border-radius:10px;background:var(--primary-tint);color:var(--primary);display:flex;align-items:center;justify-content:center;font-weight:800;margin-bottom:14px;}
  .why-item h3{font-size:17px; margin-bottom:8px;}
  .why-item p{margin:0; font-size:14px; color:var(--ink-soft);}

  .proscons{display:grid; grid-template-columns:1fr 1fr; gap:18px;}
  @media (max-width:640px){ .proscons{grid-template-columns:1fr;} }
  .proscons h3{font-size:17px; margin-bottom:14px; display:flex; align-items:center; gap:8px;}
  .proscons ul{margin:0; padding:0; list-style:none;}
  .proscons li{font-size:14.5px; padding:10px 0 10px 26px; position:relative; border-top:1px solid var(--border);}
  .proscons li:first-child{border-top:none;}
  .pros-badge{width:20px;height:20px;border-radius:6px;background:var(--accent-tint);color:var(--accent);display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:800;}
  .cons-badge{width:20px;height:20px;border-radius:6px;background:var(--gold-tint);color:var(--gold);display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:800;}
  .proscons .pros li:before{content:"✓"; position:absolute; left:0; top:10px; color:var(--accent); font-weight:800;}
  .proscons .cons li:before{content:"!"; position:absolute; left:0; top:10px; color:var(--gold); font-weight:800;}

  .service-grid{display:grid; grid-template-columns:repeat(2,1fr); gap:18px;}
  @media (max-width:700px){ .service-grid{grid-template-columns:1fr;} }
  .service-card{display:flex; justify-content:space-between; align-items:flex-start; gap:16px;}
  .service-card h3{font-size:17px; margin-bottom:6px;}
  .service-card p{margin:0; font-size:13.5px; color:var(--ink-soft);}
  .service-card .chip{white-space:nowrap; background:var(--primary-tint); color:var(--primary); font-weight:700; font-size:13px; padding:6px 12px; border-radius:999px;}

  .about-grid{display:grid; grid-template-columns:1.2fr 1fr; gap:40px;}
  @media (max-width:840px){ .about-grid{grid-template-columns:1fr;} }
  .facts{list-style:none; margin:0; padding:0;}
  .facts li{display:flex; justify-content:space-between; padding:14px 0; border-bottom:1px solid var(--border); font-size:14.5px;}
  .facts li:last-child{border-bottom:none;}
  .facts li b{font-weight:700; color:var(--primary);}

  .steps{display:flex; gap:0; overflow-x:auto; padding-bottom:6px;}
  .step{flex:1; min-width:180px; padding:0 18px 0 0; position:relative;}
  .step .circ{width:38px;height:38px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-family:'Plus Jakarta Sans';font-weight:800;font-size:15px;margin-bottom:14px;}
  .step h3{font-size:16.5px; margin-bottom:6px;}
  .step p{margin:0; font-size:13.5px; color:var(--ink-soft);}

  .highlight-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:16px;}
  @media (max-width:840px){ .highlight-grid{grid-template-columns:1fr 1fr;} }
  @media (max-width:480px){ .highlight-grid{grid-template-columns:1fr;} }
  .highlight{text-align:left;}
  .highlight .num{font-family:'Plus Jakarta Sans',sans-serif; font-size:28px; font-weight:800; color:var(--primary);}
  .highlight p{margin:6px 0 0; font-size:13.5px; color:var(--ink-soft);}

  .quote-tool{display:grid; grid-template-columns:1fr 1fr 1fr auto; gap:16px; align-items:end;}
  @media (max-width:800px){ .quote-tool{grid-template-columns:1fr;} }
  .quote-tool label{display:block; font-size:12.5px; color:var(--ink-soft); margin-bottom:6px; font-weight:600;}
  .quote-tool select,.quote-tool input{width:100%; font:inherit; font-size:14.5px; padding:11px 13px; border:1px solid var(--border); border-radius:var(--rs); background:var(--bg); color:var(--ink);}
  .quote-result{margin-top:20px; padding:20px; background:var(--primary-tint); border-radius:var(--r); font-size:15px; display:none;}
  .quote-result.show{display:block;}
  .quote-result .price{font-family:'Plus Jakarta Sans',sans-serif; font-size:26px; font-weight:800; color:var(--primary);}

  .testimonial-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:18px;}
  @media (max-width:840px){ .testimonial-grid{grid-template-columns:1fr;} }
  .stars{color:var(--gold); letter-spacing:2px; font-size:14px; margin-bottom:10px;}
  .testimonial p.quote{margin:0 0 16px; font-size:14.5px;}
  .testimonial .who{display:flex; align-items:center; gap:10px; font-size:13px; color:var(--ink-soft);}
  .avatar{width:36px;height:36px;border-radius:50%;background:var(--primary-tint);color:var(--primary);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:13px;}
  .who b{color:var(--ink); display:block; font-weight:700;}

  .job-preview-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:18px;}
  @media (max-width:840px){ .job-preview-grid{grid-template-columns:1fr;} }
  .jobcard .tag-urgent{display:inline-block; font-size:12px; font-weight:700; background:var(--gold-tint); color:var(--gold); padding:4px 10px; border-radius:999px; margin-bottom:12px;}
  .jobcard h3{font-size:18px; margin-bottom:6px;}
  .jobcard .meta{color:var(--ink-soft); font-size:13.5px; margin-bottom:12px;}
  .jobcard .salary{font-weight:700; font-size:15px; color:var(--primary);}

  footer{padding:48px 0 56px; background:var(--primary-dark); color:#EAF2FB;}
  .foot-grid{display:grid; grid-template-columns:2fr 1fr 1fr; gap:28px; font-size:14px;}
  @media (max-width:640px){ .foot-grid{grid-template-columns:1fr;} }
  .foot-grid h3{font-size:15px; margin-bottom:12px; font-family:'Inter'; font-weight:700; color:#fff;}
  .foot-grid p, .foot-grid a{color:#C7D8EC; text-decoration:none; display:block; margin-bottom:8px;}

  .filters{display:flex; gap:10px; flex-wrap:wrap; margin-bottom:28px;}
  .filters select{font:inherit; font-size:14px; padding:11px 14px; border:1px solid var(--border); border-radius:var(--rs); background:var(--surface); color:var(--ink);}
  .joblist{display:flex; flex-direction:column; gap:12px;}
  .jobrow{display:grid; grid-template-columns:2.2fr 1fr 1fr 1fr auto; gap:16px; align-items:center; padding:20px; background:var(--surface); border:1px solid var(--border); border-radius:var(--r); box-shadow:var(--shadow);}
  @media (max-width:900px){ .jobrow{grid-template-columns:1fr; gap:6px;} }
  .jobrow .pos{font-weight:700; font-size:16.5px;}
  .jobrow .sub{color:var(--ink-soft); font-size:13.5px;}
  .jobrow .col-label{display:none; font-size:11px; color:var(--ink-soft);}
  @media (max-width:900px){ .jobrow .col-label{display:block; margin-top:6px;} }
  .badge{font-size:12px; font-weight:700; padding:4px 10px; border-radius:999px; display:inline-block; width:fit-content;}
  .badge.urgent{background:var(--gold-tint); color:var(--gold);}
  .badge.new{background:var(--accent-tint); color:var(--accent);}
  .jobrow .apply{background:var(--primary); color:#fff; border-radius:var(--rs); padding:9px 18px; font-size:13.5px; font-weight:700; text-decoration:none; white-space:nowrap;}

  .split{display:grid; grid-template-columns:1.1fr 1fr; gap:28px; align-items:start;}
  @media (max-width:840px){ .split{grid-template-columns:1fr;} }
  .video{position:relative; aspect-ratio:16/9; border-radius:var(--r); overflow:hidden; background:linear-gradient(135deg,var(--primary-dark),var(--primary)); color:#fff; display:flex; flex-direction:column; align-items:center; justify-content:center; text-align:center; padding:20px; box-shadow:var(--shadow-lg);}
  .video .play{width:68px;height:68px;border-radius:50%;background:#fff;color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:26px;padding-left:5px;margin-bottom:14px;}
  .video b{font-family:'Plus Jakarta Sans';font-size:17px;}
  .video small{opacity:.8; margin-top:6px; font-size:12.5px;}
  .benefit-grid{display:grid; grid-template-columns:1fr 1fr; gap:12px;}
  @media (max-width:480px){ .benefit-grid{grid-template-columns:1fr;} }
  .benefit{padding:16px;}
  .benefit .em{font-size:22px; margin-bottom:6px; display:block;}
  .benefit h3{font-size:15px; margin-bottom:4px;}
  .benefit p{margin:0; font-size:13px; color:var(--ink-soft);}
  .gallery{display:grid; grid-template-columns:repeat(4,1fr); gap:14px;}
  @media (max-width:840px){ .gallery{grid-template-columns:1fr 1fr;} }
  .tile{aspect-ratio:4/3; border-radius:var(--r); background:linear-gradient(160deg,var(--primary-tint),var(--accent-tint)); border:1px dashed var(--border); display:flex; flex-direction:column; align-items:center; justify-content:center; text-align:center; padding:12px; gap:6px; font-size:13px; color:var(--ink-soft);}
  .tile .em{font-size:34px;}
  .tile b{color:var(--ink); font-size:14px;}
  .office{display:grid; grid-template-columns:1.2fr 1fr; gap:24px; margin-top:28px; align-items:center;}
  @media (max-width:840px){ .office{grid-template-columns:1fr;} }
  .office img{width:100%; height:auto; border-radius:var(--r); display:block; box-shadow:var(--shadow-lg);}
  .office ul{list-style:none; margin:0; padding:0;}
  .office li{padding:10px 0; border-bottom:1px solid var(--border); font-size:14.5px;}
  .office li:last-child{border-bottom:none;}
  .office li span{display:block; color:var(--ink-soft); font-size:12.5px;}
  .chips{display:flex; gap:8px; flex-wrap:wrap; margin-bottom:20px;}
  .chips span{background:var(--accent-tint); color:var(--accent); font-weight:700; font-size:13px; padding:7px 14px; border-radius:999px;}
  .float-cta{position:fixed; right:14px; bottom:calc(14px + env(safe-area-inset-bottom,0px)); display:flex; flex-direction:column; gap:10px; z-index:30;}
  .float-cta a{display:flex; align-items:center; gap:8px; padding:12px 18px; border-radius:999px; font-weight:700; font-size:14px; text-decoration:none; box-shadow:var(--shadow-lg); color:#fff;}
  .float-cta .call{background:#D92D20;}
  .float-cta .zalo{background:#0068FF;}

  body{padding-bottom:env(safe-area-inset-bottom,0px);}
  .brand{text-decoration:none; color:inherit;}
  .brand img{width:36px; height:34px; border-radius:9px; object-fit:cover;}
  .navlinks a{color:var(--ink-soft); padding:9px 16px; border-radius:999px; font-weight:600; text-decoration:none;}
  .navlinks a.active{color:var(--primary); background:var(--primary-tint);}
  .navlinks a.cta{background:var(--primary); color:#fff; margin-left:6px;}
  @media (max-width:640px){ .navlinks a{padding:8px 10px;} }
  .section-head--row{display:flex; justify-content:space-between; align-items:baseline; flex-wrap:wrap; gap:12px;}
  .btn-sm{padding:10px 18px; font-size:14px;}
  .about-grid h2{margin-bottom:16px;}
  .service-card--wide{grid-column:1/-1;}
  .quote-tool .btn{height:45px; justify-content:center;}
  .empty-msg{display:none; color:var(--ink-soft); padding:24px 0;}
  .section-tight{padding-top:40px;}
  .foot-grid .legal{margin-bottom:4px;}
  .foot-grid a{display:block;}
  .count{color:var(--ink-soft); font-size:14px;}
  @media (prefers-reduced-motion:reduce){ html{scroll-behavior:auto;} }
  .jobrow[hidden]{display:none;}

  .breadcrumb{font-size:13px; color:var(--ink-soft); margin-bottom:14px;}
  .breadcrumb a{color:var(--ink-soft); text-decoration:none;}
  .breadcrumb a:hover{color:var(--primary);}
  .breadcrumb span{color:var(--ink);}
  .pos-link{text-decoration:none; color:inherit;}
  .pos-link .pos:hover{color:var(--primary);}

  /* single job post page */
  .job-head{display:flex; justify-content:space-between; align-items:flex-start; gap:20px; flex-wrap:wrap; margin-bottom:8px;}
  .job-head h1{font-size:clamp(24px,3.4vw,32px); max-width:26ch;}
  .job-meta-chips{display:flex; gap:10px; flex-wrap:wrap; margin:16px 0 28px;}
  .job-meta-chips .chip2{background:var(--surface); border:1px solid var(--border); border-radius:999px; padding:8px 14px; font-size:13.5px; color:var(--ink-soft);}
  .job-meta-chips .chip2 b{color:var(--ink);}
  .job-body{display:grid; grid-template-columns:1.6fr 1fr; gap:32px; align-items:start;}
  @media (max-width:840px){ .job-body{grid-template-columns:1fr;} }
  .job-body h2{font-size:20px; margin:28px 0 12px;}
  .job-body h2:first-child{margin-top:0;}
  .job-body ul{margin:0; padding-left:20px;}
  .job-body li{margin-bottom:8px; font-size:14.5px;}
  .apply-card{position:sticky; top:88px;}
  .apply-card .salary-big{font-family:'Plus Jakarta Sans'; font-size:24px; font-weight:800; color:var(--primary); margin-bottom:16px;}
  .apply-card .facts li{display:flex; justify-content:space-between; padding:10px 0; font-size:14px;}
  .related-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:16px; margin-top:16px;}
  @media (max-width:840px){ .related-grid{grid-template-columns:1fr;} }
  .job-preview-grid a.jobcard{display:block; text-decoration:none;}