:root{
  --red:#de5a0e; --red-d:#b8470a; --gold:#ff9a3c; --green:#0f2a4a; --green-2:#1f4e79;
  --cream:#ffffff; --sand:#f1f5fa; --ink:#13203a; --muted:#5b6577; --line:#dde3ec; --white:#fff;
  --r:14px; --shadow:0 10px 30px rgba(15,42,74,.12);
  --serif:'Playfair Display',Georgia,serif; --sans:'Be Vietnam Pro',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--sans);color:var(--ink);background:var(--cream);line-height:1.65;font-size:16px;overflow-x:hidden}
img{max-width:100%;display:block;height:auto}
a{color:var(--red-d);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{font-family:var(--serif);font-weight:600;line-height:1.2;color:var(--green)}
h2{font-size:clamp(1.7rem,3.4vw,2.5rem);margin-bottom:.6rem}
h3{font-size:1.25rem;margin-bottom:.4rem}
p+p{margin-top:.8rem}
.wrap{width:min(1180px,100% - 32px);margin-inline:auto}
.sec{padding:clamp(56px,8vw,96px) 0}
.sec.alt{background:var(--sand)}
.sec.dark{background:var(--green);color:#e8eef7}
.sec.dark h2,.sec.dark h3{color:#fff}
.eyebrow{display:inline-block;font-size:.78rem;letter-spacing:.18em;text-transform:uppercase;color:var(--red);font-weight:600;margin-bottom:.6rem}
.dark .eyebrow{color:var(--gold)}
.lead{font-size:1.08rem;color:var(--muted);max-width:760px}
.dark .lead{color:#c3d0e2}
.center{text-align:center}.center .lead{margin-inline:auto}
.grid{display:grid;gap:24px}
.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.g3,.g4{grid-template-columns:repeat(2,1fr)}.g2{grid-template-columns:1fr}}
@media(max-width:560px){.g3,.g4{grid-template-columns:1fr}}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 24px;border-radius:999px;font-weight:600;border:0;cursor:pointer;font:600 .98rem var(--sans);transition:.2s;text-decoration:none!important}
.btn-red{background:var(--red);color:#fff}.btn-red:hover{background:var(--red-d)}
.btn-line{border:1.5px solid currentColor;color:#fff;background:transparent}.btn-line:hover{background:rgba(255,255,255,.12)}
.btn-gold{background:var(--gold);color:var(--green)}
.btn.mini{padding:6px 14px;font-size:.8rem;background:var(--sand);color:var(--red)}
.btn.mini:hover{background:var(--red);color:#fff}
.btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}

/* header */
#hdr{position:fixed;inset:0 0 auto;z-index:50;transition:.25s;background:linear-gradient(rgba(0,0,0,.45),transparent)}
#hdr.scrolled,#hdr.solid{background:rgba(255,255,255,.97);box-shadow:0 2px 14px rgba(0,0,0,.08)}
#hdr .wrap{display:flex;align-items:center;justify-content:space-between;height:70px;gap:16px}
.logo img{height:46px;width:auto}
.logo .lw{display:none}
#hdr.scrolled .logo .lw,#hdr.solid .logo .lw{display:block}
#hdr.scrolled .logo .ld,#hdr.solid .logo .ld{display:none}
#menu{display:flex;gap:18px;align-items:center;list-style:none}
#menu a{color:#fff;font-weight:500;font-size:.93rem}
#hdr.scrolled #menu a,#hdr.solid #menu a{color:var(--ink)}
#menu a.cta{background:var(--red);color:#fff!important;padding:9px 18px;border-radius:999px}
#burger{display:none;background:none;border:0;width:40px;height:40px;cursor:pointer;color:#fff}
#hdr.scrolled #burger,#hdr.solid #burger{color:var(--ink)}
#burger span{display:block;height:2px;background:currentColor;margin:6px 8px}
@media(max-width:1180px){
  #burger{display:block}
  #menu{position:fixed;top:70px;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:var(--cream);padding:8px 16px 18px;box-shadow:0 12px 20px rgba(0,0,0,.1);display:none}
  #menu.open{display:flex}
  #menu a{color:var(--ink)!important;display:block;padding:12px 4px;border-bottom:1px solid var(--line)}
  #menu a.cta{text-align:center;margin-top:10px;border:0}
}

/* hero */
.hero{position:relative;min-height:min(92vh,820px);display:flex;align-items:flex-end;color:#fff;padding:120px 0 64px;isolation:isolate}
.hero picture,.hero>img{position:absolute;inset:0;z-index:-2}
.hero picture img,.hero>img{width:100%;height:100%;object-fit:cover}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(0,0,0,.25) 0%,rgba(0,0,0,.15) 40%,rgba(10,25,48,.86) 100%)}
.hero h1{color:#fff;font-size:clamp(2.1rem,5.4vw,4rem);max-width:900px}
.hero .sub{font-size:clamp(1rem,1.6vw,1.2rem);max-width:720px;margin-top:14px;color:#eef3fa}
.hero .tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.hero .tags span{background:rgba(255,255,255,.14);backdrop-filter:blur(6px);border:1px solid rgba(255,255,255,.25);padding:6px 14px;border-radius:999px;font-size:.88rem}
.hero.sm{min-height:62vh}
.crumb{font-size:.85rem;margin-bottom:12px;color:#dbe4f1}
.crumb a{color:#fff}

/* stats */
.stats{display:grid;grid-template-columns:repeat(5,1fr);gap:1px;background:var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);margin-top:-40px;position:relative;z-index:2}
.stats div{background:#fff;padding:22px 16px;text-align:center}
.stats b{display:block;font:600 1.75rem var(--serif);color:var(--red)}
.stats span{font-size:.86rem;color:var(--muted)}
@media(max-width:900px){.stats{grid-template-columns:repeat(2,1fr)}.stats div:last-child{grid-column:span 2}}

/* cards */
.card{background:#fff;border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column}
.card img{aspect-ratio:16/10;object-fit:cover;width:100%}
.card .bd{padding:20px 22px 24px;flex:1;display:flex;flex-direction:column}
.card .bd p{color:var(--muted);font-size:.95rem}
.card .bd .more{margin-top:auto;padding-top:14px;font-weight:600}
.badge{display:inline-block;background:var(--sand);color:var(--red);font-size:.75rem;font-weight:600;padding:4px 10px;border-radius:999px;margin-bottom:8px}
.spec{list-style:none;margin-top:10px;font-size:.92rem}
.spec li{display:flex;justify-content:space-between;gap:10px;padding:6px 0;border-bottom:1px dashed var(--line)}
.spec li b{color:var(--ink);font-weight:600;text-align:right}

.split{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center}
.split.rev>:first-child{order:2}
@media(max-width:900px){.split{grid-template-columns:1fr;gap:28px}.split.rev>:first-child{order:0}}
.ph{border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow)}
.ph img{width:100%;cursor:zoom-in}
.ticks{list-style:none;margin-top:16px}
.ticks li{position:relative;padding:6px 0 6px 30px}
.ticks li::before{content:"";position:absolute;left:0;top:12px;width:18px;height:18px;border-radius:50%;background:var(--red) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E") center/12px no-repeat}
.dark .ticks li::before{background-color:var(--gold)}

/* distances */
.dist{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;margin-top:28px}
.dist div{background:#fff;border-radius:12px;padding:16px 10px;text-align:center;border:1px solid var(--line)}
.dist b{display:block;font:600 1.5rem var(--serif);color:var(--red)}
.dist span{font-size:.85rem;color:var(--muted)}
@media(max-width:900px){.dist{grid-template-columns:repeat(3,1fr)}}

/* gallery */
.gal{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.gal figure{position:relative;border-radius:10px;overflow:hidden;cursor:zoom-in;background:#ddd}
.gal figure.w2{grid-column:span 2;grid-row:span 2}
.gal img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;transition:transform .5s}
.gal figure:hover img{transform:scale(1.05)}
.gal figcaption{position:absolute;left:0;right:0;bottom:0;padding:22px 12px 9px;font-size:.82rem;color:#fff;background:linear-gradient(transparent,rgba(0,0,0,.7))}
@media(max-width:760px){.gal{grid-template-columns:repeat(2,1fr)}}

/* tables */
.tbl-wrap{overflow-x:auto;border-radius:var(--r);box-shadow:var(--shadow);background:#fff;margin-top:18px}
table{width:100%;border-collapse:collapse;font-size:.93rem}
table.wide{min-width:680px}
[id]{scroll-margin-top:80px}
th,td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
th{background:var(--green);color:#fff;font-weight:600;font-size:.86rem}
tr.grp td{background:var(--sand);font-weight:600;color:var(--green)}
td.num,th.num{text-align:right;white-space:nowrap}
tbody tr:hover td{background:#f6f8fc}
.note{font-size:.85rem;color:var(--muted);margin-top:10px;font-style:italic}

/* tabs */
.tabs{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.tabs button{border:1.5px solid var(--line);background:#fff;padding:9px 16px;border-radius:999px;cursor:pointer;font:500 .9rem var(--sans);color:var(--ink)}
.tabs button.on{background:var(--green);color:#fff;border-color:var(--green)}

/* promo */
.promo{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:28px}
.promo div{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);border-radius:var(--r);padding:22px 18px}
.promo b{display:block;font:600 1.6rem var(--serif);color:var(--gold);margin-bottom:6px}
.promo span{font-size:.92rem;color:#cdd8e8}
@media(max-width:900px){.promo{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.promo{grid-template-columns:1fr}}

.promo.light div{background:#fff;border-color:var(--line)}
.promo.light b{color:var(--red)}
.promo.light span{color:var(--muted)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:14px}
.steps div{background:#fff;border-radius:12px;padding:16px;border-top:4px solid var(--gold)}
.steps div.done{border-top-color:var(--green-2)}
.steps b{display:block;font:600 1.1rem var(--serif);color:var(--green)}
.steps span{font-size:.9rem;color:var(--muted)}
@media(max-width:900px){.steps{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.steps{grid-template-columns:1fr}}

/* calculator */
.calc{background:#fff;border-radius:var(--r);box-shadow:var(--shadow);padding:24px;margin-top:22px}
.calc .row{display:flex;flex-wrap:wrap;gap:14px;align-items:end}
.calc label{font-size:.85rem;font-weight:600;color:var(--muted);display:block;margin-bottom:6px}
.calc input,.calc select{font:500 1rem var(--sans);padding:11px 14px;border:1.5px solid var(--line);border-radius:10px;min-width:220px;background:#fff;width:100%}
.calc .row>div{flex:1;min-width:200px}
.calc .sum{margin-top:16px;display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.calc .sum div{background:var(--sand);border-radius:10px;padding:12px 14px}
.calc .sum b{display:block;font:600 1.2rem var(--serif);color:var(--red)}
.calc .sum span{font-size:.82rem;color:var(--muted)}
@media(max-width:640px){.calc .sum{grid-template-columns:1fr}}

/* faq */
.faq details{background:#fff;border-radius:12px;margin-top:10px;border:1px solid var(--line)}
.faq summary{cursor:pointer;padding:16px 20px;font-weight:600;list-style:none;position:relative;padding-right:46px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:20px;top:12px;font-size:1.4rem;color:var(--red)}
.faq details[open] summary::after{content:"–"}
.faq details>div{padding:0 20px 18px;color:var(--muted)}

/* form */
.lead-box{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
@media(max-width:900px){.lead-box{grid-template-columns:1fr}}
.lead-form{background:#fff;color:var(--ink);border-radius:var(--r);padding:28px;box-shadow:var(--shadow)}
.lead-form h3{margin-bottom:14px}
.lead-form input,.lead-form select,.lead-form textarea{width:100%;font:400 1rem var(--sans);padding:12px 14px;border:1.5px solid var(--line);border-radius:10px;margin-bottom:12px;background:#fff}
.lead-form input:focus,.lead-form select:focus{outline:2px solid var(--gold);border-color:transparent}
.lead-form button{width:100%;justify-content:center}
.lead-form small{display:block;font-size:.78rem;color:var(--muted);margin-top:10px;text-align:center}

/* footer */
footer{background:#0b1f38;color:#b7c4d8;padding:56px 0 90px;font-size:.92rem}
footer .grid{grid-template-columns:1.4fr 1fr 1fr}
@media(max-width:800px){footer .grid{grid-template-columns:1fr}}
footer h4{color:#fff;font-family:var(--serif);font-size:1.1rem;margin-bottom:10px}
footer a{color:#ffc9a3}
footer ul{list-style:none}footer li{padding:3px 0}
footer .disc{border-top:1px solid rgba(255,255,255,.1);margin-top:32px;padding-top:18px;font-size:.8rem;color:#8a9ab3}

/* floating */
.fab{position:fixed;right:16px;bottom:18px;z-index:40;display:flex;flex-direction:column;gap:10px}
.fab a{width:54px;height:54px;border-radius:50%;display:grid;place-items:center;color:#fff;box-shadow:0 6px 18px rgba(0,0,0,.25);font-weight:700;font-size:.8rem;text-decoration:none!important}
.fab .call{background:var(--red);animation:pulse 2s infinite}
.fab .zalo{background:#0068ff}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(222,90,14,.5)}70%{box-shadow:0 0 0 14px rgba(222,90,14,0)}100%{box-shadow:0 0 0 0 rgba(222,90,14,0)}}

/* lightbox & modal */
#lb,#modal{position:fixed;inset:0;z-index:100;background:rgba(8,16,30,.92);display:none;align-items:center;justify-content:center;padding:20px}
#lb.on,#modal.on{display:flex}
#lb img{max-width:96vw;max-height:88vh;border-radius:8px}
#lb button{position:absolute;background:rgba(255,255,255,.12);border:0;color:#fff;width:48px;height:48px;border-radius:50%;font-size:1.5rem;cursor:pointer}
#lb .x{top:16px;right:16px}#lb .p{left:12px;top:50%}#lb .n{right:12px;top:50%}
#modal .box{background:#fff;border-radius:var(--r);padding:32px;max-width:420px;text-align:center;position:relative}
#modal .x{position:absolute;top:10px;right:14px;border:0;background:none;font-size:1.6rem;cursor:pointer}

.rv{opacity:0;transform:translateY(24px);transition:opacity .7s,transform .7s}
.rv.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}
.prose h2{margin-top:2rem}.prose h3{margin-top:1.4rem}.prose ul{margin:.6rem 0 .6rem 1.2rem}
.toc{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 20px;margin:18px 0}
.toc ol{margin-left:1.2rem}

/* bảng tính từng căn */
.calc .sum.s5{grid-template-columns:repeat(5,1fr)}
.calc .sum.loan{margin-top:12px}
.calc .sum.loan input{min-width:0}
.calc .sum.loan[hidden]{display:none}
#customRow[hidden]{display:none}
@media(max-width:900px){.calc .sum.s5{grid-template-columns:repeat(2,1fr)}.calc .sum.s5>div:nth-child(3){grid-column:span 2}}
@media(max-width:640px){.calc .sum.loan{grid-template-columns:1fr}}
@media print{
  #hdr,.fab,footer,#dang-ky,.no-print,.hero img,.sec.alt{display:none!important}
  .hero{min-height:0!important;color:var(--ink);padding:0 0 10px}.hero::after{display:none}.hero h1{color:var(--green);font-size:1.6rem}.hero .sub,.crumb,.crumb a{color:var(--muted)}
  .calc,.tbl-wrap{box-shadow:none}.sec{padding:10px 0}table.wide{min-width:0}body{background:#fff}
}
@media(max-width:560px){.stats b{font-size:1.3rem}.stats div{padding:16px 8px}}

/* trang dòng tiền */
.cf-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:18px}
.cf-grid label{font-size:.82rem;font-weight:600;color:var(--muted);display:block;margin-bottom:6px}
.cf-grid input{width:100%;font:500 1rem var(--sans);padding:10px 12px;border:1.5px solid var(--line);border-radius:10px}
@media(max-width:760px){.cf-grid{grid-template-columns:1fr 1fr}}
@media(max-width:480px){.cf-grid{grid-template-columns:1fr}}
.bars{display:grid;gap:10px;margin:20px 0}
.bar{display:grid;grid-template-columns:90px 1fr 80px;align-items:center;gap:12px;font-size:.92rem}
.bar i{display:block;height:22px;border-radius:6px;background:var(--green-2);width:var(--v)}
.bar.hi i{background:var(--red)}
.bar.plan i{background:repeating-linear-gradient(45deg,var(--gold),var(--gold) 6px,#ffd1a8 6px,#ffd1a8 12px)}
.bar b{font-weight:600;color:var(--green)}
/* chọn căn trên mặt bằng */
.unit-view{display:grid;grid-template-columns:1.5fr 1fr;gap:24px;margin-top:22px;align-items:start}
@media(max-width:900px){.unit-view{grid-template-columns:1fr}}
.plan-box{position:relative;border-radius:12px;overflow:hidden;border:1px solid var(--line)}
.plan-box img{width:100%;display:block}
.plan figcaption,.unit-pic figcaption{font-size:.82rem;color:var(--muted);margin-top:8px}
.pin{position:absolute;transform:translate(-50%,-50%);width:22px;height:22px;border-radius:50%;border:3px solid #fff;background:var(--gold);box-shadow:0 2px 6px rgba(0,0,0,.35);cursor:pointer;padding:0}
.pin span{display:none;position:absolute;bottom:130%;left:50%;transform:translateX(-50%);background:var(--green);color:#fff;font:600 .78rem var(--sans);padding:4px 9px;border-radius:6px;white-space:nowrap}
.pin:hover span{display:block}
.pin.on{background:var(--red);width:30px;height:30px;z-index:2;animation:pinPulse 1.6s infinite}
.pin.on span{display:block;font-size:.9rem;background:var(--red)}
@keyframes pinPulse{0%{box-shadow:0 0 0 0 rgba(222,90,14,.6)}70%{box-shadow:0 0 0 18px rgba(222,90,14,0)}100%{box-shadow:0 0 0 0 rgba(222,90,14,0)}}
.unit-info h3{margin:6px 0 4px}
.unit-pic{margin-top:14px}
.unit-pic img{width:100%;border-radius:12px;aspect-ratio:16/10;object-fit:cover}
@media print{.unit-view{grid-template-columns:1.4fr 1fr}.pin.on{animation:none}}
#planAll .pin{width:14px;height:14px;border-width:2px}
#planAll .pin.on{width:22px;height:22px}
.plan-box[hidden]{display:none}
/* khoanh kín lô (đường biên dò từ sơ đồ CĐT) */
.lots{position:absolute;inset:0;width:100%;height:100%;z-index:1}
.lot{fill:rgba(255,255,255,.3);stroke:#fff;stroke-width:2;vector-effect:non-scaling-stroke;cursor:pointer;transition:fill .2s}
.lot:hover{fill:rgba(255,154,60,.45)}
.lot.on{fill:rgba(222,90,14,.7);stroke:#fff;stroke-width:4;filter:drop-shadow(0 0 3px rgba(222,90,14,.9));animation:lotBlink 1.6s ease-in-out infinite}
#planAll .lot{stroke-width:1}
#planAll .lot.on{stroke-width:2}
@keyframes lotBlink{50%{fill:rgba(222,90,14,.35)}}
.pin{z-index:2}
.pin:not(.on){opacity:0;pointer-events:none}
#planAll .pin:not(.on){opacity:1;pointer-events:auto;width:9px;height:9px;border-width:1px}
.pin.on{width:10px;height:10px;border-width:2px;animation:none;z-index:3;background:var(--red)}
.pin.on span{bottom:260%}
@media print{.lot.on{animation:none}}