/* ---------- tokens: light ---------- */
:root{
  --bg:#FAFBF8;
  --surface:#FFFFFF;
  --surface-2:#F1F4EE;
  --ink:#17231D;
  --ink-soft:#4A5A51;
  --ink-faint:#7C8A81;
  --line:#DFE5DD;
  --line-strong:#C6D1C6;
  --green:#1E5240;
  --green-deep:#102F24;
  --brass:#A2761F;
  --brass-soft:#F4EBD8;
  --dot:#5ED495;
  --on-green:#F2F6F1;
  --shadow:0 20px 44px -30px rgba(16,47,36,.45);
  --seal-bg:#1E5240; --seal-ink:#F2F6F1; --seal-dot:#D9AA54;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#0E1612;
    --surface:#151E19;
    --surface-2:#1A2520;
    --ink:#E9EEE9;
    --ink-soft:#AAB7AE;
    --ink-faint:#7E8C83;
    --line:#28342E;
    --line-strong:#36453D;
    --green:#84C0A3;
    --green-deep:#0C2419;
    --brass:#D9AA54;
    --brass-soft:#2C2517;
    --dot:#5ED495;
    --on-green:#F2F6F1;
    --shadow:0 20px 44px -30px rgba(0,0,0,.7);
    --seal-bg:#F2F6F1; --seal-ink:#102F24; --seal-dot:#A2761F;
  }
}
:root[data-theme="dark"]{
  --bg:#0E1612;
  --surface:#151E19;
  --surface-2:#1A2520;
  --ink:#E9EEE9;
  --ink-soft:#AAB7AE;
  --ink-faint:#7E8C83;
  --line:#28342E;
  --line-strong:#36453D;
  --green:#84C0A3;
  --green-deep:#0C2419;
  --brass:#D9AA54;
  --brass-soft:#2C2517;
  --dot:#5ED495;
  --on-green:#F2F6F1;
  --shadow:0 20px 44px -30px rgba(0,0,0,.7);
  --seal-bg:#F2F6F1; --seal-ink:#102F24; --seal-dot:#A2761F;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition:none!important;animation:none!important}
}

body{
  background:var(--bg);
  color:var(--ink);
  font-family:"Avenir Next","Segoe UI","Helvetica Neue",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.62;
  -webkit-font-smoothing:antialiased;
}
.serif{font-family:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,serif}

a{color:var(--green);text-decoration:none}
a:hover{text-decoration:underline}
:focus-visible{outline:2px solid var(--brass);outline-offset:3px;border-radius:3px}

.wrap{max-width:1080px;margin:0 auto;padding:0 28px}
@media (max-width:560px){ .wrap{padding:0 20px} }

/* ---------- header ---------- */
header{
  position:sticky;top:0;z-index:50;
  background:color-mix(in srgb, var(--bg) 90%, transparent);
  backdrop-filter:saturate(1.4) blur(12px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;gap:30px;padding:15px 0}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.brand:hover{text-decoration:none}
.brand .seal{flex:none;display:block}
.brand-words{display:flex;flex-direction:column;gap:1px;line-height:1.15}
.brand-words .mark{
  font-family:"Iowan Old Style",Palatino,Georgia,serif;
  font-weight:700;font-size:21px;letter-spacing:.03em;color:var(--ink);
}
.brand-words .mark span{color:var(--brass)}
.brand-words small{
  color:var(--ink-faint);font-size:10.5px;
  letter-spacing:.16em;text-transform:uppercase;font-weight:600;
}
nav.links{margin-left:auto;display:flex;gap:26px}
nav.links a{color:var(--ink-soft);font-size:14.5px;font-weight:500}
nav.links a:hover{color:var(--green);text-decoration:none}
.nav-cta{
  background:var(--green);color:var(--on-green);
  padding:9px 18px;border-radius:4px;
  font-size:14px;font-weight:600;letter-spacing:.01em;
  transition:filter .16s ease;
}
.nav-cta:hover{text-decoration:none;filter:brightness(1.1)}
@media (max-width:820px){ nav.links{display:none} .nav{gap:16px} .nav-cta{margin-left:auto} }

/* ---------- hero ---------- */
.hero{padding:96px 0 30px}
.hero-inner{max-width:760px}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:11.5px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--brass);margin-bottom:26px;
}
.eyebrow::before{content:"";width:30px;height:2px;background:var(--brass);flex:none}
h1{
  font-family:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,serif;
  font-size:clamp(36px,5.2vw,58px);line-height:1.1;font-weight:700;
  letter-spacing:-.015em;text-wrap:balance;margin-bottom:26px;
}
h1 em{font-style:italic;color:var(--green)}
.lede{max-width:36em;color:var(--ink-soft);font-size:18.5px;margin-bottom:36px}
.hero-ctas{display:flex;gap:14px;flex-wrap:wrap}
.btn{
  display:inline-block;padding:13px 27px;border-radius:4px;
  font-weight:600;font-size:15px;letter-spacing:.01em;
  transition:filter .16s ease, border-color .16s ease, color .16s ease;
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--green);color:var(--on-green)}
.btn-primary:hover{filter:brightness(1.1)}
.btn-ghost{border:1.5px solid var(--line-strong);color:var(--ink)}
.btn-ghost:hover{border-color:var(--green);color:var(--green)}
.btn-light{
  background:var(--on-green);color:var(--green-deep);
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 28px;box-shadow:0 10px 24px -14px rgba(0,0,0,.6);
}
.btn-light:hover{filter:brightness(.95)}
.btn-light .arrow{transition:transform .18s ease;font-size:17px;line-height:1}
.btn-light:hover .arrow{transform:translateX(4px)}

/* markets strip */
.markets{
  margin-top:64px;padding:20px 0;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:26px;flex-wrap:wrap;
  font-size:12.5px;letter-spacing:.1em;text-transform:uppercase;font-weight:600;
  color:var(--ink-faint);
}
.markets .label{color:var(--brass)}
.markets .sep{width:5px;height:5px;border-radius:50%;background:var(--line-strong);flex:none}

/* ---------- sections ---------- */
section{padding:84px 0}
.sec-head{max-width:660px;margin-bottom:48px}
.sec-head h2{
  font-family:"Iowan Old Style",Palatino,Georgia,serif;
  font-size:clamp(27px,3.4vw,38px);line-height:1.18;font-weight:700;
  letter-spacing:-.01em;text-wrap:balance;margin-bottom:14px;
}
.sec-head p{color:var(--ink-soft);font-size:17px}

/* services */
.svc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
@media (max-width:780px){ .svc-grid{grid-template-columns:1fr} }
.svc{
  background:var(--surface);border:1px solid var(--line);border-radius:9px;
  padding:32px 30px;display:flex;flex-direction:column;gap:13px;
  transition:border-color .18s ease, box-shadow .18s ease, transform .18s ease;
}
.svc:hover{border-color:var(--line-strong);box-shadow:var(--shadow);transform:translateY(-2px)}
.svc .tag{
  align-self:flex-start;
  font-size:10.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brass);background:var(--brass-soft);
  padding:5px 11px;border-radius:3px;
}
.svc h3{font-family:"Iowan Old Style",Palatino,Georgia,serif;font-size:23px;font-weight:700;line-height:1.25}
.svc > p{color:var(--ink-soft);font-size:15.5px}
.svc ul{list-style:none;margin-top:6px;display:flex;flex-direction:column;gap:9px;
  padding-top:18px;border-top:1px solid var(--line)}
.svc li{font-size:14.5px;color:var(--ink-soft);padding-left:19px;position:relative}
.svc li::before{
  content:"";position:absolute;left:0;top:.62em;
  width:7px;height:1.5px;background:var(--brass);
}

/* trust band */
.trust{background:var(--surface-2);border-block:1px solid var(--line)}
.trust-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:40px}
@media (max-width:840px){ .trust-grid{grid-template-columns:1fr;gap:32px} }
.trust-item h3{
  font-size:17.5px;font-weight:700;margin-bottom:9px;
  display:flex;align-items:center;gap:11px;
}
.trust-item h3::before{content:"";flex:none;width:8px;height:8px;background:var(--brass)}
.trust-item p{color:var(--ink-soft);font-size:15.5px}

/* careers */
.jobs{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
@media (max-width:780px){ .jobs{grid-template-columns:1fr} }
.job{
  background:var(--surface);border:1px solid var(--line);
  border-left:3px solid var(--green);border-radius:7px;
  padding:28px 28px 24px;display:flex;flex-direction:column;gap:11px;
  transition:box-shadow .18s ease;
}
.job:hover{box-shadow:var(--shadow)}
.job .open{
  display:inline-flex;align-items:center;gap:7px;align-self:flex-start;
  font-size:10.5px;font-weight:700;letter-spacing:.13em;text-transform:uppercase;
  color:var(--green);
}
.job .open::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--dot)}
.job h3{font-size:19.5px;font-weight:700}
.job > p{color:var(--ink-soft);font-size:14.5px;flex:1}
.job .meta{font-size:13px;color:var(--ink-faint);padding-top:4px;border-top:1px solid var(--line)}
.job .apply{font-size:14.5px;font-weight:600}

/* contact */
.contact{background:var(--green-deep);color:var(--on-green)}
.contact .sec-head h2{color:var(--on-green)}
.contact .sec-head p{color:var(--on-green);opacity:.82}
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:start}
@media (max-width:780px){ .contact-grid{grid-template-columns:1fr;gap:34px} }
.contact dl div{
  display:grid;grid-template-columns:120px 1fr;gap:12px;
  padding:14px 0;border-bottom:1px solid rgba(255,255,255,.15);font-size:15.5px;
}
.contact dt{
  opacity:.62;font-size:11.5px;text-transform:uppercase;
  letter-spacing:.11em;font-weight:600;padding-top:4px;
}
.contact dl a, .contact p a{color:#C4E6D3;text-decoration:underline;text-underline-offset:3px}
.contact dl a:hover, .contact p a:hover{color:#fff}
/* buttons keep their own colours — never inherit the link styling above */
.contact a.btn{text-decoration:none}
.contact-cta{
  display:flex;flex-direction:column;align-items:flex-start;gap:22px;
  padding:30px;border:1px solid rgba(255,255,255,.16);border-radius:9px;
  background:rgba(255,255,255,.035);
}
.contact-cta p{font-size:15.5px;opacity:.86}

/* footer */
footer{padding:40px 0 34px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-faint)}
.slogan{
  font-family:"Iowan Old Style",Palatino,Georgia,serif;
  font-size:18px;color:var(--ink-soft);margin-bottom:22px;
}
.legal{display:flex;flex-direction:column;gap:6px;margin-bottom:18px;max-width:70ch}
.legal .co{color:var(--ink-soft);font-weight:600}
.legal .num{font-variant-numeric:tabular-nums;letter-spacing:.03em}
footer a{color:var(--ink-faint);text-decoration:underline;text-underline-offset:2px}
footer a:hover{color:var(--green)}
.copyright{padding-top:16px;border-top:1px solid var(--line)}

/* ---------- language toggle (EN | VI) ---------- */
.lang-toggle{
  display:inline-flex;align-items:center;
  border:1px solid var(--line-strong);border-radius:4px;
  padding:2px;background:var(--surface);
  margin-left:auto;
}
.lang-toggle button{
  appearance:none;border:0;background:transparent;cursor:pointer;
  font:inherit;font-size:12.5px;font-weight:700;letter-spacing:.08em;
  color:var(--ink-faint);padding:5px 10px;border-radius:3px;
  transition:background .16s ease,color .16s ease;
}
.lang-toggle button:hover{color:var(--green)}
.lang-toggle button[aria-pressed="true"]{background:var(--green);color:var(--on-green)}
nav.links + .lang-toggle{margin-left:0}
@media (max-width:820px){
  .lang-toggle{margin-left:auto}
  .nav-cta{margin-left:0}
}
@media (max-width:400px){ .brand-words small{display:none} }

/* ---------- mobile refinements (≤ 560px) ---------- */
@media (max-width:560px){
  body{font-size:16px}
  /* header: gọn hơn, nút EN|VI và Liên hệ cùng hàng với logo */
  .nav{padding:11px 0;gap:10px}
  .brand{gap:9px}
  .brand .seal{width:34px;height:34px}
  .brand-words .mark{font-size:18px}
  .lang-toggle button{padding:5px 8px;font-size:12px}
  .nav-cta{padding:8px 13px;font-size:13px}

  /* hero: bớt khoảng trắng đầu trang, nút bấm full chiều ngang */
  .hero{padding:48px 0 20px}
  .eyebrow{font-size:10.5px;letter-spacing:.12em;margin-bottom:18px;line-height:1.5}
  .eyebrow::before{width:22px}
  h1{font-size:clamp(32px,9.2vw,40px);margin-bottom:18px}
  .lede{font-size:17px;margin-bottom:26px}
  .hero-ctas{flex-direction:column;gap:10px}
  .hero-ctas .btn{width:100%;text-align:center;padding:14px 20px}

  /* markets: nhãn một dòng riêng, 3 thị trường một dòng */
  .markets{margin-top:40px;padding:16px 0;gap:10px 14px;font-size:11.5px;letter-spacing:.08em}
  .markets .label{flex-basis:100%}
  .markets .label + .sep{display:none}

  /* sections: đệm gọn hơn cho màn hình nhỏ */
  section{padding:56px 0}
  .sec-head{margin-bottom:28px}
  .sec-head h2{font-size:clamp(26px,7.4vw,32px)}
  .sec-head p{font-size:16px}
  .svc-grid,.jobs{gap:14px}
  .svc{padding:24px 20px;gap:11px}
  .svc h3{font-size:21px}
  .svc > p,.svc li{font-size:15px}
  .trust-grid{gap:26px}
  .job{padding:22px 20px 20px}

  /* contact: nhãn nằm trên giá trị thay vì hai cột chật */
  .contact dl div{grid-template-columns:1fr;gap:4px;padding:12px 0}
  .contact dt{padding-top:0}
  .contact-cta{padding:22px 20px;gap:18px}
  .contact-cta .btn{width:100%;justify-content:center}

  /* footer */
  footer{padding:32px 0 28px;font-size:12.5px}
  .slogan{font-size:16.5px;margin-bottom:18px}
}