:root{
  --ink:#12332E; --ink-2:#1D4A43; --paper:#F7F8F5; --white:#FFFFFF;
  --brass:#B08A3E; --brass-soft:#EFE6D2; --slate:#5B6B68; --line:#DDE3E0;
  --text:#18211F; --ok:#2F7A4D; --err:#A33A2B;
  --r-s:4px; --r-m:10px;
  --wrap:1200px;
  --font:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
body{margin:0;background:var(--paper);color:var(--text);font:400 16px/1.65 var(--font);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit}
:focus-visible{outline:2px solid var(--brass);outline-offset:3px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}
h1,h2,h3{line-height:1.2;letter-spacing:-.015em;margin:0 0 .5em;font-weight:650}
h1{font-size:clamp(2rem,4.6vw,3.4rem)}
h2{font-size:clamp(1.5rem,2.6vw,2.1rem)}
h3{font-size:1.15rem}
p{margin:0 0 1em}
.muted{color:var(--slate)}
.num{font-variant-numeric:tabular-nums}

/* Header */
.top{background:var(--ink);color:#DCE7E4;font-size:.85rem}
.top .wrap{display:flex;gap:24px;justify-content:flex-end;padding-top:6px;padding-bottom:6px}
.top a{text-decoration:none}
header.site{background:var(--white);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.brand-mark{width:40px;height:40px;border-radius:var(--r-s);background:var(--ink);color:var(--brass-soft);display:grid;place-items:center;font-weight:700;font-size:.9rem;letter-spacing:.02em}
.brand-name{font-weight:650;color:var(--ink);line-height:1.15}
.brand-name small{display:block;font-weight:400;color:var(--slate);font-size:.75rem}
nav.main{display:flex;gap:4px}
nav.main a{text-decoration:none;padding:8px 12px;border-radius:var(--r-s);color:var(--text);font-weight:500;font-size:.95rem}
nav.main a:hover{background:var(--paper)}
nav.main a[aria-current=page]{color:var(--ink);box-shadow:inset 0 -2px 0 var(--brass)}
.menu-btn{display:none;background:none;border:1px solid var(--line);border-radius:var(--r-s);padding:8px 12px;font:inherit}
@media(max-width:900px){
  .menu-btn{display:block}
  nav.main{display:none;position:absolute;left:0;right:0;top:72px;background:var(--white);flex-direction:column;padding:8px 20px 16px;border-bottom:1px solid var(--line)}
  nav.main.open{display:flex}
  .top .wrap{justify-content:center}
  .top .wrap > :not(:first-child){display:none}
}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 20px;border-radius:var(--r-s);border:1px solid var(--ink);background:var(--ink);color:#fff;font:600 .95rem var(--font);text-decoration:none;cursor:pointer}
.btn:hover{background:var(--ink-2)}
.btn.ghost{background:transparent;color:var(--ink)}
.btn.ghost:hover{background:var(--white)}
.btn.brass{background:var(--brass);border-color:var(--brass)}

/* Hero */
.hero{background:var(--ink);color:#fff;position:relative;overflow:hidden}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.28}
.hero .wrap{position:relative;display:grid;grid-template-columns:1.25fr .9fr;gap:48px;padding-top:72px;padding-bottom:72px;align-items:center}
.hero p.lead{font-size:1.15rem;color:#D3E0DC;max-width:34em}
.hero .actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
.hero .btn.ghost{color:#fff;border-color:#8FA9A3}
.hero .btn.ghost:hover{background:rgba(255,255,255,.08)}
@media(max-width:900px){.hero .wrap{grid-template-columns:1fr;padding-top:48px;padding-bottom:48px}}

/* Loan estimator: the signature element */
.loan{background:var(--white);color:var(--text);border-radius:var(--r-m);padding:24px;border-top:4px solid var(--brass)}
.loan h3{margin-bottom:4px;color:var(--ink)}
.loan .row{display:grid;grid-template-columns:1fr auto;gap:4px 12px;align-items:center;margin-top:16px}
.loan label{font-size:.9rem;color:var(--slate)}
.loan output{font-weight:600;font-variant-numeric:tabular-nums}
.loan input[type=range]{grid-column:1/-1;width:100%;accent-color:var(--ink)}
.loan .result{margin-top:20px;padding-top:16px;border-top:1px dashed var(--line)}
.loan .result strong{display:block;font-size:2rem;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1.1}
.loan .fine{font-size:.78rem;color:var(--slate);margin:8px 0 0}

/* Sections */
section.block{padding:72px 0}
section.block.alt{background:var(--white)}
.head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:28px;flex-wrap:wrap}
.head p{max-width:40em;margin:0}
.head a{font-weight:600;color:var(--ink)}

/* Stats as a single strip */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stats div{padding:24px 20px;border-left:1px solid var(--line)}
.stats div:first-child{border-left:0}
.stats b{display:block;font-size:2rem;color:var(--ink);font-variant-numeric:tabular-nums}
.stats span{color:var(--slate);font-size:.9rem}

/* Projects */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:28px}
.proj{text-decoration:none;display:flex;flex-direction:column;background:var(--white);border:1px solid var(--line);border-radius:var(--r-m);overflow:hidden}
.proj:hover h3{text-decoration:underline;text-underline-offset:3px}
.proj .img{aspect-ratio:4/3;background:#CBD6D2 center/cover}
.proj .body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:6px;flex:1}
.proj h3{margin:0;color:var(--ink)}
.proj .loc{color:var(--slate);font-size:.9rem}
.proj .price{font-weight:650;font-variant-numeric:tabular-nums}
.proj .fin{margin-top:auto;padding-top:12px;border-top:1px solid var(--line);font-size:.85rem;color:var(--slate)}
.proj .fin b{color:var(--ink)}
.tag{display:inline-block;font-size:.78rem;font-weight:600;padding:2px 8px;border-radius:999px;background:var(--brass-soft);color:#6B5320;align-self:flex-start}
.tag.soon{background:#E2EBE8;color:var(--ink)}

/* Filters */
.filters{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:28px}
.filters select,.filters input{font:inherit;padding:10px 12px;border:1px solid var(--line);border-radius:var(--r-s);background:var(--white);min-width:180px}

/* Services */
.services{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:0;border-top:2px solid var(--ink)}
.services div{padding:24px 24px 24px 0}
.services h3{color:var(--ink)}

/* Partners */
.partners{display:flex;flex-wrap:wrap;gap:32px;align-items:center}
.partners img{height:44px;width:auto;filter:grayscale(1);opacity:.75}
.partners span{font-weight:600;color:var(--slate)}

/* News list */
.news{display:grid;gap:0}
.news a{display:grid;grid-template-columns:200px 1fr;gap:24px;padding:20px 0;border-bottom:1px solid var(--line);text-decoration:none}
.news a:first-child{border-top:1px solid var(--line)}
.news .img{aspect-ratio:3/2;background:#CBD6D2 center/cover;border-radius:var(--r-s)}
.news h3{margin:4px 0 6px;color:var(--ink)}
.news a:hover h3{text-decoration:underline;text-underline-offset:3px}
.news small{color:var(--slate)}
@media(max-width:640px){.news a{grid-template-columns:110px 1fr;gap:14px}.news p{display:none}}

/* Detail */
.crumbs{font-size:.88rem;color:var(--slate);padding:20px 0 0}
.crumbs a{text-decoration:none}
.detail{display:grid;grid-template-columns:1fr 360px;gap:48px;padding:24px 0 72px}
@media(max-width:960px){.detail{grid-template-columns:1fr}}
.gallery-main{aspect-ratio:16/9;background:#CBD6D2 center/cover;border-radius:var(--r-m)}
.thumbs{display:flex;gap:8px;margin-top:8px;overflow-x:auto}
.thumbs button{flex:0 0 96px;aspect-ratio:4/3;border:2px solid transparent;border-radius:var(--r-s);background:#CBD6D2 center/cover;cursor:pointer;padding:0}
.thumbs button[aria-pressed=true]{border-color:var(--brass)}
.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));margin:28px 0;border-top:1px solid var(--line)}
.facts div{padding:12px 0;border-bottom:1px solid var(--line);padding-right:16px}
.facts dt{font-size:.82rem;color:var(--slate)}
.facts dd{margin:0;font-weight:600}
.prose h2{font-size:1.4rem;margin-top:1.6em}
.prose ul{padding-left:1.2em}
.prose li{margin-bottom:.35em}
.side{position:sticky;top:96px;align-self:start;display:grid;gap:20px}
.panel{background:var(--white);border:1px solid var(--line);border-radius:var(--r-m);padding:24px}
.panel .price{font-size:1.6rem;font-weight:650;color:var(--ink);font-variant-numeric:tabular-nums}

/* Forms */
form.lead{display:grid;gap:12px}
form.lead input,form.lead select,form.lead textarea{font:inherit;padding:12px;border:1px solid var(--line);border-radius:var(--r-s);background:var(--white);width:100%}
form.lead textarea{min-height:96px;resize:vertical}
form.lead .hp{position:absolute;left:-9999px}
.form-msg{font-size:.92rem;margin:0}
.form-msg.ok{color:var(--ok)}
.form-msg.err{color:var(--err)}
.cta-band{background:var(--ink);color:#fff}
.cta-band .wrap{display:grid;grid-template-columns:1fr 1fr;gap:48px;padding-top:64px;padding-bottom:64px;align-items:center}
.cta-band p{color:#D3E0DC}
@media(max-width:900px){.cta-band .wrap{grid-template-columns:1fr}}

/* Page hero (inner pages) */
.page-hero{background:var(--white);border-bottom:1px solid var(--line);padding:48px 0 36px}
.page-hero p{max-width:44em;color:var(--slate);margin:0}

/* Jobs */
.jobs details{background:var(--white);border:1px solid var(--line);border-radius:var(--r-m);padding:0 24px;margin-bottom:12px}
.jobs summary{cursor:pointer;padding:20px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;list-style:none}
.jobs summary::-webkit-details-marker{display:none}
.jobs summary b{color:var(--ink);font-size:1.08rem}
.jobs .meta{color:var(--slate);font-size:.9rem}
.jobs details[open] summary{border-bottom:1px solid var(--line)}
.jobs .content{padding:16px 0 24px}

/* Contact */
.contact{display:grid;grid-template-columns:1fr 1fr;gap:48px;padding:56px 0 72px}
@media(max-width:900px){.contact{grid-template-columns:1fr}}
.contact dl{display:grid;gap:16px;margin:0}
.contact dt{font-size:.85rem;color:var(--slate)}
.contact dd{margin:0;font-weight:600}
.map{aspect-ratio:16/10;border:0;width:100%;border-radius:var(--r-m);margin-top:24px;background:#DDE3E0}

/* Empty / loading */
.empty{padding:40px;border:1px dashed var(--line);border-radius:var(--r-m);color:var(--slate);background:var(--white)}
.skeleton{min-height:220px;border-radius:var(--r-m);background:linear-gradient(90deg,#ECEFED,#F4F6F5,#ECEFED);background-size:200% 100%;animation:sk 1.4s infinite}
@keyframes sk{to{background-position:-200% 0}}

/* Footer */
footer.site{background:#0C2420;color:#B9C9C5;font-size:.92rem}
footer.site .wrap{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding-top:56px;padding-bottom:40px}
footer.site h4{color:#fff;margin:0 0 12px;font-size:1rem}
footer.site a{text-decoration:none}
footer.site a:hover{color:#fff}
footer.site ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}
footer.site .legal{border-top:1px solid #23413B;padding:16px 0;font-size:.82rem}
@media(max-width:800px){footer.site .wrap{grid-template-columns:1fr}}

/* Floating contact */
.float{position:fixed;right:16px;bottom:16px;display:grid;gap:10px;z-index:30}
.float a{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;background:var(--ink);color:#fff;text-decoration:none;font-weight:700;font-size:.8rem;box-shadow:0 4px 14px rgba(18,51,46,.3)}
.float a.zalo{background:#0068FF}