:root{
  --ground:#FAF8F4; --paper:#FFFFFF; --paper-2:#FCFAF6;
  --ink:#15130F; --ink-2:#48443C; --muted:#7A7368;
  --rule:#E6E0D4; --rule-2:#C7BFAE;
  --brand:#14614F; --brand-d:#0D4739; --brand-l:#2B8570;
  --gold:#A07C2C; --gold-l:#E3C888;
  --shadow-sm:0 1px 2px rgba(21,19,15,.05);
  --shadow:0 2px 4px rgba(21,19,15,.04),0 12px 34px rgba(21,19,15,.07);
  --maxw:1160px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--ground);color:var(--ink);
  font-family:"Be Vietnam Pro",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16.5px;line-height:1.68;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img,svg{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
@media(max-width:520px){.wrap{padding:0 18px}}
h1,h2,h3,.serif{font-family:"Lora",Georgia,serif;line-height:1.22;letter-spacing:-.012em}
::selection{background:var(--gold-l);color:var(--brand-d)}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

/* ---------- reveal ---------- */
.rv{opacity:0;transform:translateY(14px);transition:opacity .6s cubic-bezier(.2,.7,.3,1),transform .6s cubic-bezier(.2,.7,.3,1)}
.rv.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}

/* ---------- header ---------- */
header{position:sticky;top:0;z-index:60;background:rgba(250,248,244,.88);
  backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid transparent;transition:border-color .25s,background .25s}
header.stuck{border-bottom-color:var(--rule);background:rgba(250,248,244,.96)}
.hbar{display:flex;align-items:center;justify-content:space-between;height:76px;gap:14px;transition:height .25s}
header.stuck .hbar{height:66px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);white-space:nowrap}
.logo .mk{width:30px;height:30px;flex:0 0 30px;border-radius:6px;background:var(--brand);display:grid;place-items:center}
.logo .mk svg{width:17px;height:17px}
.logo b{font-family:"Lora",Georgia,serif;font-weight:700;font-size:21px;letter-spacing:-.02em}
.logo b i{font-style:normal;color:var(--brand)}
.hnav{display:flex;align-items:center;gap:24px}
.hnav a{color:var(--ink-2);text-decoration:none;font-size:14.5px;font-weight:500;position:relative;padding:4px 0}
.hnav a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:1.5px;background:var(--brand);transition:right .25s}
.hnav a:hover{color:var(--brand)}
.hnav a:hover::after{right:0}
.lang{font-size:11.5px;letter-spacing:.09em;text-transform:uppercase;color:var(--muted);
  border:1px solid var(--rule-2);padding:7px 12px;border-radius:3px;text-decoration:none;font-weight:600;
  transition:border-color .15s,color .15s;white-space:nowrap}
.lang:hover{border-color:var(--brand);color:var(--brand)}
.phones{display:flex;gap:8px}
.ph{display:inline-flex;flex-direction:column;background:var(--brand);color:#fff;text-decoration:none;
  padding:9px 15px;border-radius:3px;font-weight:700;font-size:14.5px;line-height:1.3;white-space:nowrap;
  transition:background .18s,transform .18s}
.ph small{font-size:10px;letter-spacing:.1em;text-transform:uppercase;opacity:.76;font-weight:500}
.ph:hover{background:var(--brand-d);transform:translateY(-1px)}
.ph.alt{background:var(--paper);color:var(--brand);border:1px solid var(--brand)}
.ph.alt:hover{background:#ECF4F1}
@media(max-width:1080px){.hnav{display:none}}
@media(max-width:680px){.phones .ph:nth-child(2){display:none}}
@media(max-width:400px){.logo b{font-size:18px}.ph{padding:8px 11px;font-size:13.5px}}

/* ---------- hero ---------- */
.hero{position:relative;padding:70px 0 0;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0 0 180px 0;z-index:0;pointer-events:none;
  background:radial-gradient(105% 78% at 80% 5%, rgba(20,97,79,.10), transparent 62%),
             radial-gradient(78% 62% at 3% 62%, rgba(160,124,44,.11), transparent 60%)}
.hero .wrap{position:relative;z-index:1;display:grid;grid-template-columns:1.02fr .98fr;gap:54px;align-items:start}
@media(max-width:1000px){.hero .wrap{grid-template-columns:1fr;gap:38px}.hero{padding:40px 0 0}}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:11.5px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--gold);font-weight:700;margin-bottom:18px}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--gold)}
h1{font-size:clamp(34px,5.1vw,54px);margin:0 0 20px;font-weight:700;text-wrap:balance;line-height:1.1}
h1 em{font-style:italic;color:var(--brand)}
.lede{font-size:18.5px;color:var(--ink-2);margin:0 0 28px;max-width:48ch}
.ticks{list-style:none;margin:0 0 30px;padding:0;display:grid;gap:14px}
.ticks li{display:grid;grid-template-columns:24px 1fr;gap:13px;font-size:15.5px;color:var(--ink-2);align-items:start}
.ticks .ic{margin-top:3px;width:22px;height:22px;border-radius:50%;background:rgba(20,97,79,.10);display:grid;place-items:center}
.ticks b{color:var(--ink);font-weight:600}
.cities{border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);padding:18px 0;
  font-size:13.5px;color:var(--muted);line-height:1.9}
.cities b{color:var(--ink);font-weight:600}

/* stats */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--rule);
  border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);margin-top:22px}
.stat{background:var(--ground);padding:20px 4px 20px 0}
.stat .n{font-family:"Lora",Georgia,serif;font-size:30px;font-weight:700;line-height:1;color:var(--brand)}
.stat .l{font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-top:7px;font-weight:600}
@media(max-width:520px){.stat .n{font-size:24px}.stat .l{font-size:9.5px;letter-spacing:.06em}}

/* ---------- card / form ---------- */
.card{background:var(--paper);border:1px solid var(--rule);border-radius:4px;box-shadow:var(--shadow);overflow:hidden;position:relative}
.card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--brand),var(--brand-l) 55%,var(--gold))}
.card-top{padding:27px 30px 0}
.steps{display:flex;gap:6px;margin-bottom:20px}
.steps i{height:3px;flex:1;background:var(--rule);border-radius:2px;transition:background .35s}
.steps i.on{background:var(--brand)}
.step-lbl{font-size:11px;letter-spacing:.13em;text-transform:uppercase;color:var(--muted);font-weight:700;margin-bottom:9px}
.card h2{font-size:23px;margin:0 0 7px;font-weight:700;line-height:1.24}
.card .why{font-size:14.5px;color:var(--muted);margin:0 0 22px;line-height:1.55}
.card-body{padding:0 30px 30px}
@media(max-width:520px){.card-top{padding:22px 20px 0}.card-body{padding:0 20px 24px}}
label.q{display:block;font-size:14.5px;font-weight:600;margin:22px 0 10px}
label.q:first-child{margin-top:0}
label.q small{font-weight:400;color:var(--muted)}
input[type=text],input[type=email],input[type=tel],textarea{
  width:100%;font:inherit;font-size:16px;padding:14px 15px;border:1px solid var(--rule-2);
  border-radius:3px;background:#fff;color:var(--ink);outline:none;transition:border-color .15s,box-shadow .15s}
input::placeholder,textarea::placeholder{color:#A29A8C}
input:focus,textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(20,97,79,.13)}
textarea{resize:vertical;min-height:76px}
.opts{display:grid;gap:9px}
.opts.two{grid-template-columns:1fr 1fr}
@media(max-width:560px){.opts.two{grid-template-columns:1fr}}
.opt{position:relative}
.opt input{position:absolute;opacity:0;width:0;height:0}
.opt span{display:flex;align-items:center;gap:10px;padding:13px 14px;border:1px solid var(--rule-2);border-radius:3px;
  font-size:14.5px;cursor:pointer;background:#fff;color:var(--ink-2);transition:all .13s;min-height:48px}
.opt span::before{content:"";width:15px;height:15px;flex:0 0 15px;border:1.5px solid var(--rule-2);border-radius:50%;transition:all .13s}
.opt input[type=checkbox]+span::before{border-radius:3px}
.opt input:checked+span{border-color:var(--brand);background:#EFF6F3;color:var(--ink);font-weight:600;box-shadow:inset 0 0 0 1px var(--brand)}
.opt input:checked+span::before{border-color:var(--brand);border-width:4.5px}
.opt input[type=checkbox]:checked+span::before{border-width:1.5px;background:var(--brand);box-shadow:inset 0 0 0 2px #fff}
.opt span:hover{border-color:var(--brand-l)}
.opt input:focus-visible+span{outline:2px solid var(--brand);outline-offset:2px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:560px){.grid2{grid-template-columns:1fr}}
.btn{width:100%;font:inherit;font-size:16.5px;font-weight:700;padding:17px;border:0;border-radius:3px;
  background:var(--brand);color:#fff;cursor:pointer;margin-top:24px;transition:background .16s,transform .16s}
.btn:hover{background:var(--brand-d);transform:translateY(-1px)}
.btn:active{transform:none}
.btn.ghost{background:none;color:var(--muted);font-weight:500;font-size:14px;padding:12px;margin-top:8px}
.btn.ghost:hover{color:var(--brand);background:none;transform:none}
.fineprint{font-size:12.5px;color:var(--muted);text-align:center;margin-top:15px;line-height:1.6}
.consent{display:grid;grid-template-columns:20px 1fr;gap:12px;align-items:start;margin-top:22px;
  font-size:12.5px;color:var(--muted);line-height:1.6;cursor:pointer}
.consent input{width:18px;height:18px;margin-top:2px;accent-color:var(--brand)}
.err{color:#993220;font-size:13.5px;margin-top:11px;display:none;font-weight:500}
.err.show{display:block}
.scr{display:none;animation:fade .3s ease}
.scr.on{display:block}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.ty{text-align:center;padding:46px 28px}
.ty h2{font-size:26px;margin:16px 0 12px}
.ty p{color:var(--ink-2);font-size:15.5px;margin:0 auto 22px;max-width:38ch}
.ty .phones{justify-content:center;flex-wrap:wrap;gap:10px}

/* ---------- sections ---------- */
section.band{padding:86px 0;border-top:1px solid var(--rule)}
section.band.paper{background:var(--paper-2)}
@media(max-width:700px){section.band{padding:58px 0}}
.h2wrap{max-width:60ch;margin-bottom:44px}
h2.sec{font-size:clamp(28px,3.7vw,40px);margin:0 0 14px;font-weight:700;text-wrap:balance;line-height:1.16}
.sec-sub{font-size:17.5px;color:var(--ink-2);margin:0}

/* listing grid + gate card */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media(max-width:920px){.grid3{grid-template-columns:1fr 1fr}}
@media(max-width:620px){.grid3{grid-template-columns:1fr}}
.tile{background:var(--paper);border:1px solid var(--rule);border-radius:4px;overflow:hidden;position:relative;
  transition:transform .22s,box-shadow .22s}
.tile:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.tile .pic{height:205px;position:relative;overflow:hidden;
  background:linear-gradient(172deg,#123F35 0%,#1E6151 42%,#4E7F63 72%,#93A481 100%)}
.tile .pic .frame{position:absolute;inset:13px;border:1px solid rgba(255,255,255,.5);z-index:2;border-radius:2px}
.tile .pic svg{position:absolute;bottom:0;left:0;width:100%}
.tile .chip{position:absolute;top:15px;left:15px;z-index:3;background:rgba(21,19,15,.85);color:#fff;
  font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;font-weight:700;padding:6px 10px;border-radius:2px}
.tile .meta{padding:18px 20px}
.tile .meta .nm{font-family:"Lora",Georgia,serif;font-size:20px;font-weight:600;margin-bottom:5px}
.tile .meta .sub{font-size:13.5px;color:var(--muted)}
.tile .meta .px{margin-top:12px;font-weight:600;font-size:14px;color:var(--brand);
  padding-top:12px;border-top:1px solid var(--rule)}
.gate{background:#15130F;color:#fff;border-color:#15130F;display:flex;flex-direction:column;
  justify-content:center;padding:34px 28px;min-height:100%}
.gate:hover{transform:translateY(-3px)}
.gate .n{font-family:"Lora",Georgia,serif;font-size:44px;font-weight:700;color:var(--gold-l);line-height:1;margin-bottom:12px}
.gate h3{font-size:18.5px;color:#fff;margin:0 0 12px;font-weight:600;line-height:1.35}
.gate p{color:rgba(255,255,255,.70);font-size:14px;margin:0 0 22px;line-height:1.6}
.gate a{display:block;text-align:center;background:#fff;color:#15130F;text-decoration:none;
  font-weight:700;padding:14px;border-radius:3px;font-size:15px;transition:background .16s}
.gate a:hover{background:var(--gold-l)}
.gate .alt{background:none;color:rgba(255,255,255,.62);font-weight:500;font-size:13.5px;padding:12px 0 0}
.gate .alt:hover{color:#fff;background:none}

/* how it works */
.cols3{display:grid;grid-template-columns:repeat(3,1fr);gap:0;position:relative}
.cols3::before{content:"";position:absolute;top:26px;left:12%;right:12%;height:1px;background:var(--rule-2);z-index:0}
@media(max-width:860px){.cols3{grid-template-columns:1fr;gap:34px}.cols3::before{display:none}}
.cell{background:none;padding:0 30px 0 0;position:relative;z-index:1}
@media(max-width:860px){.cell{padding:0}}
.cell .n{width:52px;height:52px;border-radius:50%;background:var(--paper);border:1px solid var(--rule-2);
  display:grid;place-items:center;font-family:"Lora",serif;font-size:19px;font-weight:700;color:var(--brand);
  margin-bottom:22px;letter-spacing:0}
.cell h3{font-size:20px;margin:0 0 10px;font-weight:700}
.cell p{margin:0;font-size:15px;color:var(--ink-2)}

/* sell box */
.sellbox{background:var(--paper);border:1px solid var(--rule);border-radius:4px;overflow:hidden;
  padding:40px 38px;display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;position:relative}
.sellbox::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(180deg,var(--gold),var(--gold-l))}
@media(max-width:900px){.sellbox{grid-template-columns:1fr;gap:28px;padding:30px 24px}}
.sellbox h2{font-size:28px;margin:0 0 12px;font-weight:700;line-height:1.22}
.sellbox p{color:var(--ink-2);font-size:15.5px;margin:0 0 8px}

/* faq */
.faq{border:1px solid var(--rule);border-radius:4px;overflow:hidden;background:var(--paper)}
details{border-bottom:1px solid var(--rule)}
details:last-child{border-bottom:0}
summary{padding:21px 24px;cursor:pointer;font-weight:600;font-size:16.5px;list-style:none;
  display:flex;justify-content:space-between;gap:18px;align-items:center;transition:background .15s}
summary:hover{background:var(--paper-2)}
summary::-webkit-details-marker{display:none}
summary::after{content:"";width:11px;height:11px;flex:0 0 11px;border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(45deg) translateY(-3px);transition:transform .25s}
details[open] summary::after{transform:rotate(225deg) translateY(-3px)}
details p{margin:0;padding:0 24px 24px;color:var(--ink-2);font-size:15.5px;max-width:72ch}

/* cta */
.cta{background:var(--brand);color:#fff;padding:80px 0;text-align:center;position:relative;overflow:hidden}
.cta::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(60% 100% at 50% 0%, rgba(227,200,136,.18), transparent 65%)}
.cta .wrap{position:relative;z-index:1}
.cta h2{color:#fff;font-size:clamp(28px,3.7vw,40px);margin:0 0 14px;font-weight:700}
.cta p{color:rgba(255,255,255,.84);font-size:17.5px;margin:0 auto 28px;max-width:46ch}
.cta .phones{justify-content:center;flex-wrap:wrap;gap:12px}
.cta .ph{background:#fff;color:var(--brand);font-size:17.5px;padding:15px 28px}
.cta .ph:hover{background:#E9F3EF}

/* footer */
footer{background:#12100C;color:#948C7F;padding:60px 0 34px;font-size:14px}
footer a{color:#CFC7B8;text-decoration:none}
footer a:hover{color:#fff;text-decoration:underline}
.fgrid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:44px;margin-bottom:38px}
@media(max-width:760px){.fgrid{grid-template-columns:1fr;gap:30px}}
.fgrid h4{color:#fff;font-size:11.5px;letter-spacing:.13em;text-transform:uppercase;margin:0 0 16px;font-weight:600;
  font-family:"Be Vietnam Pro",sans-serif}
.fgrid ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.flogo{font-family:"Lora",Georgia,serif;font-size:22px;color:#fff;font-weight:700;margin-bottom:14px}
.legal{border-top:1px solid #2A251E;padding-top:24px;font-size:12.5px;color:#6F675B;line-height:1.8}

/* sticky mobile */
.sticky{display:none}
@media(max-width:680px){
  .sticky{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:70;gap:9px;padding:11px 13px;
    background:rgba(250,248,244,.97);backdrop-filter:blur(12px);border-top:1px solid var(--rule);
    box-shadow:0 -4px 18px rgba(21,19,15,.07)}
  .sticky .ph{flex:1;align-items:center;justify-content:center;font-size:14.5px;padding:14px 6px;text-align:center}
  body{padding-bottom:76px}
}

/* ---------- vá tràn ngang trên điện thoại ---------- */
body{overflow-x:clip}
.hp{position:absolute!important;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;left:auto!important}
.hbar>*{min-width:0}
@media(max-width:760px){
  .hbar{gap:8px}
  .lang{padding:6px 9px;font-size:10.5px;letter-spacing:.06em}
  .ph{padding:8px 11px;font-size:13.5px}
  .ph small{display:none}
  .logo b{font-size:18px}
}
@media(max-width:430px){
  .lang{padding:6px 7px;font-size:10px}
  .ph{padding:8px 9px;font-size:12.5px}
  .logo .mk{width:26px;height:26px;flex:0 0 26px}
  .logo b{font-size:16.5px}
  .cities{font-size:12.5px}
}