/* ===== LUSSO SAIGON — style ===== */
:root{
  --ink:#0A1420;          /* nền đen xanh sâu */
  --ink-2:#12212F;
  --ink-3:#1B2E3F;
  --gold:#C8A45C;
  --gold-lt:#E3C77B;
  --gold-dk:#9E7C36;
  --cream:#F7F3EC;
  --paper:#FFFFFF;
  --text:#1C2733;
  --muted:#5F6B78;
  --line:rgba(200,164,92,.28);
  --red:#C0392B;
  --green:#1E8E5A;
  --shadow:0 18px 50px rgba(10,20,32,.14);
  --radius:14px;
  --wrap:1180px;
  --hdr:64px;
  --ff-d:"Playfair Display",Georgia,serif;
  --ff-b:"Be Vietnam Pro",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--hdr) + 8px);-webkit-text-size-adjust:100%;overflow-x:clip}
body{margin:0;font-family:var(--ff-b);font-size:16px;line-height:1.65;color:var(--text);background:var(--paper);overflow-x:clip}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit}
h1,h2,h3,h4{font-family:var(--ff-d);font-weight:700;line-height:1.18;margin:0 0 .5em;letter-spacing:-.01em}
p{margin:0 0 1em}
.wrap{width:min(100% - 32px,var(--wrap));margin-inline:auto}
.center{text-align:center}
.gold{color:var(--gold-dk)}

/* ---- Nhãn & tiêu đề mục ---- */
.eyebrow{display:inline-flex;align-items:center;gap:.55rem;font-size:.72rem;font-weight:700;letter-spacing:.22em;text-transform:uppercase;color:var(--gold-dk);margin-bottom:.7rem}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--gold)}
.on-dark .eyebrow{color:var(--gold-lt)}
.sec-title{font-size:clamp(1.7rem,4.4vw,2.7rem);margin-bottom:.35em}
.sec-sub{max-width:62ch;color:var(--muted);font-size:1.02rem}
.on-dark .sec-sub{color:rgba(247,243,236,.72)}

/* ---- Nút ---- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.86rem 1.5rem;border-radius:999px;font-weight:600;font-size:.97rem;border:1px solid transparent;cursor:pointer;transition:transform .18s,box-shadow .18s,background .18s,color .18s;white-space:nowrap}
.btn:active{transform:translateY(1px)}
.btn-gold{background:linear-gradient(135deg,var(--gold-lt),var(--gold));color:#20180A;box-shadow:0 10px 26px rgba(200,164,92,.34)}
.btn-gold:hover{box-shadow:0 14px 34px rgba(200,164,92,.46)}
.btn-ghost{border-color:var(--gold);color:var(--gold-dk);background:transparent}
.on-dark .btn-ghost{color:var(--gold-lt);border-color:rgba(227,199,123,.6)}
.btn-ghost:hover{background:rgba(200,164,92,.12)}
.btn-lg{padding:1.02rem 1.9rem;font-size:1.03rem}
.btn-block{width:100%}

/* ---- Header ---- */
.site-header{position:fixed;inset:0 0 auto;height:var(--hdr);z-index:80;display:flex;align-items:center;transition:background .3s,box-shadow .3s,backdrop-filter .3s}
.site-header.is-solid{background:rgba(10,20,32,.94);backdrop-filter:blur(10px);box-shadow:0 1px 0 rgba(200,164,92,.22)}
.hdr-in{display:flex;align-items:center;gap:1rem;width:min(100% - 24px,1280px);margin-inline:auto}
.brand{display:flex;align-items:center;gap:.6rem;margin-right:auto}
.brand img{height:34px;width:auto}
.brand span{font-family:var(--ff-d);color:var(--cream);font-size:1.02rem;letter-spacing:.06em}
.site-nav{display:flex;gap:1.35rem}
.site-nav a{color:rgba(247,243,236,.86);font-size:.85rem;font-weight:500;letter-spacing:.04em;text-transform:uppercase;padding:.3rem 0;border-bottom:1.5px solid transparent}
.site-nav a:hover{color:var(--gold-lt);border-color:var(--gold)}
.hdr-cta{display:inline-flex;align-items:center;gap:.45rem;background:linear-gradient(135deg,var(--gold-lt),var(--gold));color:#20180A;font-weight:700;font-size:.93rem;padding:.55rem 1.05rem;border-radius:999px}
.burger{display:none;width:42px;height:42px;background:none;border:0;padding:9px;cursor:pointer}
.burger i{display:block;height:2px;background:var(--cream);margin:5px 0;transition:.25s;border-radius:2px}
.burger.is-open i:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.is-open i:nth-child(2){opacity:0}
.burger.is-open i:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---- Hero ---- */
.hero{position:relative;min-height:100svh;display:flex;align-items:flex-end;color:var(--cream);background:var(--ink);overflow:hidden}
.hero-bg{position:absolute;inset:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;object-position:center 40%}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,20,32,.72) 0%,rgba(10,20,32,.34) 34%,rgba(10,20,32,.86) 78%,rgba(10,20,32,.97) 100%)}
.hero-in{position:relative;z-index:2;padding:calc(var(--hdr) + 40px) 0 34px}
.hero-badge{display:inline-flex;align-items:center;gap:.5rem;border:1px solid rgba(227,199,123,.5);background:rgba(10,20,32,.42);backdrop-filter:blur(4px);color:var(--gold-lt);font-size:.73rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;padding:.42rem .95rem;border-radius:999px;margin-bottom:1rem}
.hero h1{font-size:clamp(2.1rem,6.6vw,4.15rem);margin-bottom:.3em;text-shadow:0 2px 24px rgba(0,0,0,.4)}
.hero h1 em{font-style:normal;color:var(--gold-lt);display:block}
.hero-lead{font-size:clamp(1rem,2.4vw,1.2rem);color:rgba(247,243,236,.9);max-width:58ch;margin-bottom:1.3rem}
.hero-usp{list-style:none;padding:0;margin:0 0 1.7rem;display:grid;gap:.55rem;max-width:60ch}
.hero-usp li{position:relative;padding-left:1.7rem;font-size:.99rem;color:rgba(247,243,236,.92)}
.hero-usp li::before{content:"";position:absolute;left:0;top:.55em;width:9px;height:9px;border:1.5px solid var(--gold);transform:rotate(45deg)}
.hero-actions{display:flex;flex-wrap:wrap;gap:.75rem;margin-bottom:1.9rem}
.hero-trust{display:flex;flex-wrap:wrap;align-items:flex-end;gap:1.1rem 2.6rem;padding-top:1.25rem;border-top:1px solid rgba(227,199,123,.24)}
.tr-item{display:flex;flex-direction:column;align-items:flex-start;gap:.5rem}
.tr-item img{width:auto;filter:brightness(0) invert(1);opacity:.88;transition:opacity .25s}
.tr-item:hover img{opacity:1}
.tr-item span{font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;color:rgba(247,243,236,.5);white-space:nowrap}

/* ---- Dải số liệu ---- */
.stats{background:var(--ink-2);color:var(--cream);padding:clamp(3rem,6vw,4.6rem) 0;border-top:1px solid rgba(200,164,92,.2)}
.stats-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(1.8rem,4vw,3.2rem);align-items:center}

/* Hai ảnh lệch tầng cho có chiều sâu */
.stats-media{margin:0;display:grid;grid-template-columns:1fr 1fr;gap:.8rem;align-items:start}
.stats-media img{width:100%;border-radius:var(--radius);box-shadow:var(--shadow);cursor:zoom-in;display:block}
.stats-media img:first-child{grid-column:1 / -1;aspect-ratio:16/10;object-fit:cover}
.stats-media img:last-child{grid-column:1 / 2;aspect-ratio:3/4;object-fit:cover;object-position:center 20%;margin-top:-2.4rem;border:3px solid var(--ink-2);position:relative;z-index:2}

.wh-mark{height:34px;width:auto;filter:brightness(0) invert(1);opacity:.9;margin-bottom:1rem}
.stats-title{font-size:clamp(1.45rem,3.2vw,2.05rem);margin-bottom:.5em}
.stats-desc{font-size:.99rem;color:rgba(247,243,236,.72);margin-bottom:1.8rem;max-width:56ch}

.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.4rem 1rem}
.stat{position:relative;padding-left:1rem}
.stat::before{content:"";position:absolute;left:0;top:.25rem;bottom:.35rem;width:2px;background:linear-gradient(180deg,var(--gold),rgba(200,164,92,0))}
.stat b{display:block;font-family:var(--ff-d);font-size:clamp(1.7rem,3.6vw,2.4rem);color:var(--gold-lt);line-height:1}
.stat span{display:block;font-size:.81rem;color:rgba(247,243,236,.62);margin-top:.35rem;line-height:1.4}

.stats-tick{margin-top:1.9rem;padding-top:1.4rem;border-top:1px solid rgba(200,164,92,.18);gap:.55rem}
.stats-tick li{font-size:.93rem;color:rgba(247,243,236,.78)}
.stats-tick strong{color:var(--gold-lt)}

/* ---- Section chung ---- */
section{padding:clamp(3.2rem,7vw,5.6rem) 0}
.on-dark{background:var(--ink);color:var(--cream)}
.on-cream{background:var(--cream)}
.sec-head{margin-bottom:2.4rem}

/* ---- Tổng quan ---- */
.overview{display:grid;grid-template-columns:1.05fr .95fr;gap:2.6rem;align-items:center}
.overview-img{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.overview-img img{width:100%;aspect-ratio:4/3;object-fit:cover}
.spec-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.spec-list li{display:grid;grid-template-columns:9.5rem 1fr;gap:1rem;padding:.78rem 0;border-bottom:1px solid var(--line);font-size:.96rem}
.spec-list dt,.spec-list .k{color:var(--muted);font-size:.86rem;letter-spacing:.04em;text-transform:uppercase}
.spec-list .v{font-weight:600}
.on-dark .spec-list .k{color:rgba(247,243,236,.6)}
.on-dark .spec-list li{border-color:rgba(200,164,92,.2)}

/* ---- Vị trí ---- */
.loc{display:grid;grid-template-columns:1fr 1fr;gap:2.4rem;align-items:center}
.loc-map{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);position:relative}
.loc-map img{width:100%;aspect-ratio:16/11;object-fit:cover}
.loc-map .map-pin{position:absolute;left:1rem;bottom:1rem;background:rgba(10,20,32,.86);color:var(--gold-lt);border:1px solid rgba(227,199,123,.4);border-radius:999px;padding:.42rem 1rem;font-size:.83rem;font-weight:600;backdrop-filter:blur(4px)}
.route{list-style:none;margin:0 0 1.6rem;padding:0;display:grid;gap:.15rem}
.route li{display:grid;grid-template-columns:5.4rem 1fr;gap:1rem;align-items:baseline;padding:.85rem 0;border-bottom:1px dashed var(--line)}
.route b{font-family:var(--ff-d);font-size:1.32rem;color:var(--gold-dk)}
.on-dark .route b{color:var(--gold-lt)}
.route span{font-size:.97rem}
.chip-row{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:1.6rem}
.chip{border:1px solid var(--line);border-radius:999px;padding:.38rem .9rem;font-size:.85rem;color:var(--muted)}
.on-dark .chip{color:rgba(247,243,236,.78)}

/* ---- Tiện ích: tầng trải nghiệm ---- */
.tabs{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:1.8rem}
.tab{border:1px solid var(--line);background:transparent;color:inherit;border-radius:999px;padding:.6rem 1.15rem;font-size:.92rem;font-weight:600;cursor:pointer;transition:.2s}
.tab.is-active{background:linear-gradient(135deg,var(--gold-lt),var(--gold));border-color:transparent;color:#20180A}
.floor{display:grid;grid-template-columns:1fr 1fr;gap:2.2rem;align-items:center}
.floor-media{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.floor-media img{width:100%;aspect-ratio:16/10;object-fit:cover;cursor:zoom-in}
.floor h3{font-size:clamp(1.35rem,3vw,1.85rem)}
.floor .lvl{font-size:.75rem;letter-spacing:.2em;text-transform:uppercase;color:var(--gold-dk);font-weight:700;margin-bottom:.4rem}
.on-dark .floor .lvl{color:var(--gold-lt)}
.tick{list-style:none;margin:0;padding:0;display:grid;gap:.5rem}
.tick li{position:relative;padding-left:1.5rem;font-size:.97rem}
.tick li::before{content:"";position:absolute;left:.1rem;top:.62em;width:7px;height:7px;border-radius:50%;background:var(--gold)}

/* ---- Gallery ---- */
.gal{display:grid;grid-template-columns:repeat(4,1fr);gap:.7rem;margin-top:2.4rem}
.gal figure{margin:0;border-radius:10px;overflow:hidden;position:relative;background:var(--ink-3)}
.gal img{width:100%;aspect-ratio:1/1;object-fit:cover;cursor:zoom-in;transition:transform .5s}
.gal figure:hover img{transform:scale(1.06)}
.gal figcaption{position:absolute;inset:auto 0 0;padding:1.6rem .7rem .55rem;font-size:.76rem;color:#fff;background:linear-gradient(180deg,transparent,rgba(10,20,32,.85));line-height:1.3}

/* ---- Căn hộ / mặt bằng ---- */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}
.plan-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column}
.plan-card img{width:100%;aspect-ratio:4/3;object-fit:cover;cursor:zoom-in;background:#eee}
.plan-card .body{padding:1.1rem 1.2rem 1.3rem;display:flex;flex-direction:column;gap:.35rem;flex:1}
.plan-card h3{font-size:1.15rem;margin:0}
.plan-card .meta{font-size:.88rem;color:var(--muted)}
.plan-card .price{font-weight:700;color:var(--gold-dk);font-size:1.02rem}
.plan-card .btn{margin-top:auto}

/* ---- Chính sách ---- */
.policy-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.1rem;margin-bottom:1.8rem}
.policy{border:1px solid rgba(200,164,92,.34);border-radius:var(--radius);padding:1.5rem 1.35rem;background:rgba(255,255,255,.04)}
.policy b{display:block;font-family:var(--ff-d);font-size:1.72rem;color:var(--gold-lt);margin-bottom:.25rem}
.policy span{font-size:.94rem;color:rgba(247,243,236,.78)}
.policy-note{font-size:.83rem;color:rgba(247,243,236,.5);max-width:70ch}

/* ---- Tiến độ / pháp lý ---- */
.two{display:grid;grid-template-columns:1fr 1fr;gap:2.4rem;align-items:center}
.two img{border-radius:var(--radius);box-shadow:var(--shadow);cursor:zoom-in}

/* ---- Form ---- */
.form-sec{background:var(--ink);color:var(--cream);position:relative}
.form-wrap{display:grid;grid-template-columns:1fr 1fr;gap:2.8rem;align-items:start}
.agent-card{display:flex;align-items:center;gap:.9rem;border:1px solid rgba(200,164,92,.3);border-radius:var(--radius);padding:.95rem 1.1rem;margin-top:1.6rem;background:rgba(255,255,255,.04)}
.agent-avatar{width:52px;height:52px;border-radius:50%;background:linear-gradient(135deg,var(--gold-lt),var(--gold-dk));display:grid;place-items:center;flex:none}
.agent-avatar svg{width:26px;height:26px;fill:#20180A}
.agent-card .nm{font-weight:700;font-size:1rem}
.agent-card .tt{font-size:.83rem;color:rgba(247,243,236,.62)}
.agent-card .ph{display:block;margin-top:.15rem;color:var(--gold-lt);font-weight:700;letter-spacing:.02em}
form.lead{background:var(--paper);color:var(--text);border-radius:var(--radius);padding:1.7rem;box-shadow:0 24px 60px rgba(0,0,0,.35)}
form.lead h3{font-size:1.42rem;margin-bottom:.2em}
form.lead .hint{font-size:.88rem;color:var(--muted);margin-bottom:1.2rem}
.field{margin-bottom:.85rem}
.field label{display:block;font-size:.82rem;font-weight:600;color:var(--muted);margin-bottom:.32rem}
.field input,.field select,.field textarea{width:100%;padding:.82rem .95rem;border:1px solid #DCE0E5;border-radius:10px;font:inherit;font-size:1rem;background:#fff;color:var(--text);transition:border-color .2s,box-shadow .2s}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 3px rgba(200,164,92,.18)}
.field textarea{resize:vertical;min-height:70px}
.form-note{min-height:1.3em;font-size:.88rem;margin-top:.7rem}
.form-note.ok{color:var(--green);font-weight:600}
.form-note.err{color:var(--red);font-weight:600}
.privacy{font-size:.78rem;color:var(--muted);margin:.8rem 0 0;line-height:1.5}

/* ---- FAQ ---- */
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{width:100%;text-align:left;background:none;border:0;padding:1.15rem 2.4rem 1.15rem 0;font-size:1.03rem;font-weight:600;color:inherit;cursor:pointer;position:relative;font-family:var(--ff-b)}
.faq-q::after{content:"+";position:absolute;right:.35rem;top:50%;transform:translateY(-50%);font-size:1.5rem;color:var(--gold-dk);font-weight:400;transition:transform .25s}
.faq-item.is-open .faq-q::after{transform:translateY(-50%) rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease;color:var(--muted)}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a p{padding-bottom:1.1rem;margin:0;font-size:.97rem}

/* ---- Footer ---- */
.site-footer{background:#06101A;color:rgba(247,243,236,.66);padding:3rem 0 5.6rem;font-size:.9rem}
.foot-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:2rem;margin-bottom:2rem}
.site-footer h4{color:var(--cream);font-family:var(--ff-b);font-size:.8rem;letter-spacing:.16em;text-transform:uppercase;margin-bottom:.9rem}
.site-footer a:hover{color:var(--gold-lt)}
.site-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:.45rem}
.foot-bottom{border-top:1px solid rgba(200,164,92,.18);padding-top:1.4rem;font-size:.78rem;color:rgba(247,243,236,.4);line-height:1.6}

/* ---- CTA đáy (mobile) ---- */
.cta-bar{position:fixed;inset:auto 0 0;z-index:70;display:none;grid-template-columns:1fr 1fr 1.25fr;gap:.5rem;padding:.55rem .7rem calc(.55rem + env(safe-area-inset-bottom));background:rgba(10,20,32,.96);backdrop-filter:blur(10px);border-top:1px solid rgba(200,164,92,.28);transition:transform .3s}
.cta-bar.is-hidden{transform:translateY(120%)}
.cta-bar a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.15rem;border-radius:10px;padding:.5rem .3rem;font-size:.76rem;font-weight:600;color:var(--cream);border:1px solid rgba(227,199,123,.32);line-height:1.2}
.cta-bar a svg{width:19px;height:19px;fill:var(--gold-lt)}
.cta-bar a.primary{background:linear-gradient(135deg,var(--gold-lt),var(--gold));color:#20180A;border-color:transparent;font-size:.85rem;flex-direction:row;gap:.4rem}
.cta-bar a.primary svg{fill:#20180A}

/* ---- Nút nổi (desktop) ---- */
.floats{position:fixed;right:16px;bottom:20px;z-index:70;display:grid;gap:.6rem}
.float-btn{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;box-shadow:0 8px 24px rgba(0,0,0,.28);position:relative}
.float-btn svg{width:26px;height:26px}
.float-zalo{background:#0068FF}
.float-tel{background:linear-gradient(135deg,var(--gold-lt),var(--gold))}
.float-tel svg{fill:#20180A}
.float-btn::after{content:"";position:absolute;inset:-6px;border-radius:50%;border:2px solid currentColor;opacity:.35;animation:pulse 2s infinite}
.float-zalo::after{color:#0068FF}
.float-tel::after{color:var(--gold)}
@keyframes pulse{0%{transform:scale(.9);opacity:.5}70%{transform:scale(1.25);opacity:0}100%{opacity:0}}

/* ---- Lightbox ---- */
.lightbox{position:fixed;inset:0;z-index:120;background:rgba(6,12,20,.94);display:grid;place-items:center;padding:2.5rem 1rem}
.lightbox img{max-width:min(96vw,1400px);max-height:86vh;width:auto;border-radius:8px}
.lightbox button{position:absolute;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.24);color:#fff;width:46px;height:46px;border-radius:50%;font-size:1.4rem;cursor:pointer;display:grid;place-items:center}
.lb-close{top:1rem;right:1rem}
.lb-prev{left:1rem;top:50%;transform:translateY(-50%)}
.lb-next{right:1rem;top:50%;transform:translateY(-50%)}

/* ---- Hiệu ứng khi cuộn tới ---- */
.reveal{
  opacity:0;
  transform:translateY(28px);
  transition:opacity .8s cubic-bezier(.22,.61,.36,1),
             transform .8s cubic-bezier(.22,.61,.36,1),
             filter .8s ease;
  transition-delay:var(--d,0ms);
}
.reveal.in{opacity:1;transform:none;filter:none}
.reveal[data-anim="left"]{transform:translateX(-40px)}
.reveal[data-anim="right"]{transform:translateX(40px)}
.reveal[data-anim="zoom"]{transform:scale(.93);filter:blur(6px)}
@media (max-width:860px){
  /* Trên mobile các cột xếp chồng nên trượt ngang không còn hợp lý */
  .reveal[data-anim="left"],.reveal[data-anim="right"]{transform:translateY(28px)}
}

/* Gạch trang trí ở nhãn mục tự kéo dài ra */
.sec-head .eyebrow::before{width:0;transition:width .85s cubic-bezier(.22,.61,.36,1) .2s}
.sec-head.in .eyebrow::before{width:26px}

/* ---- Thanh tiến trình cuộn ---- */
.scroll-progress{position:fixed;top:0;left:0;right:0;height:3px;z-index:95;pointer-events:none}
.scroll-progress i{display:block;height:100%;transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--gold-dk),var(--gold-lt),var(--gold));
  box-shadow:0 0 12px rgba(200,164,92,.6)}

/* ---- Hero vào trang ---- */
.hero-badge,.hero h1,.hero-lead,.hero-usp,.hero-actions,.hero-trust{
  opacity:0;transform:translateY(24px);
  animation:heroIn .95s cubic-bezier(.22,.61,.36,1) forwards;
}
.hero-badge  {animation-delay:.15s}
.hero h1     {animation-delay:.28s}
.hero-lead   {animation-delay:.44s}
.hero-actions{animation-delay:.56s}
.hero-usp    {animation-delay:.68s}
.hero-trust  {animation-delay:.8s}
@keyframes heroIn{to{opacity:1;transform:none}}
.hero-bg img{will-change:transform}

/* Mũi tên mời cuộn xuống ở cuối hero */
.scroll-cue{position:absolute;left:50%;bottom:14px;z-index:3;translate:-50% 0;width:26px;height:42px;
  border:1.5px solid rgba(227,199,123,.55);border-radius:999px;display:grid;place-items:start center;
  padding-top:7px;opacity:0;animation:heroIn .9s ease 1.1s forwards}
.scroll-cue::after{content:"";width:4px;height:8px;border-radius:2px;background:var(--gold-lt);
  animation:cue 1.9s cubic-bezier(.22,.61,.36,1) infinite}
@keyframes cue{0%{transform:translateY(0);opacity:0}25%{opacity:1}70%{transform:translateY(16px);opacity:0}100%{opacity:0}}
@media (max-width:860px){ .scroll-cue{display:none} }

@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1!important;transform:none!important;filter:none!important;transition:none}
  .sec-head .eyebrow::before{width:26px;transition:none}
  .hero-badge,.hero h1,.hero-lead,.hero-usp,.hero-actions,.hero-trust,.scroll-cue{opacity:1;transform:none;animation:none}
  .scroll-cue::after{animation:none}
  html{scroll-behavior:auto}
  .float-btn::after{animation:none}
}

/* ================= RESPONSIVE ================= */
@media (max-width:1024px){
  .gal{grid-template-columns:repeat(3,1fr)}
  .plan-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){
  .site-nav{position:fixed;inset:var(--hdr) 0 auto;flex-direction:column;gap:0;background:rgba(10,20,32,.985);backdrop-filter:blur(12px);padding:.5rem 0 1rem;transform:translateY(-120%);transition:transform .3s;border-bottom:1px solid rgba(200,164,92,.25);max-height:calc(100svh - var(--hdr));overflow:auto}
  .site-nav.is-open{transform:none}
  .site-nav a{padding:.9rem 20px;border-bottom:1px solid rgba(200,164,92,.12);text-transform:none;font-size:.98rem;letter-spacing:0}
  .burger{display:block}
  .hdr-cta{display:none}
  .brand span{font-size:.92rem}
  .overview,.loc,.floor,.two,.form-wrap{grid-template-columns:1fr;gap:1.7rem}
  .policy-grid{grid-template-columns:1fr}
  .stats-wrap{grid-template-columns:1fr;gap:2rem}
  /* Cột hẹp thì bỏ kiểu chồng ảnh: hai ảnh xếp ngang, không đè lên nhau */
  .stats-media{grid-template-columns:1fr 1fr;gap:.6rem;align-items:stretch}
  .stats-media img:first-child{grid-column:1 / 2;aspect-ratio:3/4}
  .stats-media img:last-child{grid-column:2 / 3;aspect-ratio:3/4;margin-top:0;border:0;object-position:center 15%}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:1.6rem 1rem}
  .wh-mark{height:28px}
  .cta-bar{display:grid}
  .floats{display:none}
  body{padding-bottom:0}
  .site-footer{padding-bottom:6.4rem}
  .hero{min-height:auto}
  .hero-in{padding:calc(var(--hdr) + 26px) 0 34px;display:flex;flex-direction:column}
  /* Trên mobile đẩy nút CTA lên ngay dưới câu mở đầu */
  .hero-badge{order:1;align-self:flex-start;margin-bottom:.8rem}
  .hero h1{order:2}
  .hero-lead{order:3;margin-bottom:1.1rem;font-size:1.02rem}
  .hero-actions{order:4;margin-bottom:1.4rem;gap:.6rem}
  .hero-usp{order:5;margin-bottom:1.4rem;gap:.45rem}
  .hero-usp li{font-size:.93rem;padding-left:1.5rem}
  .hero-trust{order:6}
  .hero-actions .btn{flex:1 1 100%}
  .hero-trust{gap:1rem 1.6rem}
  .tr-item span{font-size:.62rem;letter-spacing:.12em}
  .tr-item img{transform-origin:left bottom;transform:scale(.86)}
}
@media (max-width:620px){
  /* Màn hình hẹp: dồn 4 logo thành một hàng, bỏ nhãn vai trò cho hero gọn lại
     (vai trò của từng đơn vị vẫn có đủ ở bảng thông số mục Tổng quan) */
  .hero-trust{gap:0;justify-content:space-between;align-items:center;padding-top:1rem}
  .tr-item{align-items:center}
  .tr-item span{display:none}
  .tr-item img{transform:none;opacity:.8}
  .tr-item:nth-child(1) img{height:34px!important}
  .tr-item:nth-child(2) img{height:20px!important}
  .tr-item:nth-child(3) img{height:14px!important}
  .tr-item:nth-child(4) img{height:19px!important}
  .gal{grid-template-columns:repeat(2,1fr);gap:.5rem}
  .spec-list li{grid-template-columns:1fr;gap:.1rem;padding:.7rem 0}
  .route li{grid-template-columns:4.6rem 1fr}
  form.lead{padding:1.35rem}
  .lightbox button{width:40px;height:40px}
  .lb-prev{left:.4rem}.lb-next{right:.4rem}
}
@media (max-width:480px){
  .plan-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:1.6rem}
  .hero h1{font-size:2.05rem}
}

/* hidden phải thắng display của .lightbox / .floor */
[hidden]{display:none!important}

/* ---- Bảng tiến độ thanh toán ---- */
.pay-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid rgba(200,164,92,.28);border-radius:var(--radius);background:rgba(255,255,255,.03)}
.pay-table{width:100%;border-collapse:collapse;font-size:.92rem;min-width:520px}
.pay-table th,.pay-table td{padding:.72rem .9rem;text-align:left;border-bottom:1px solid rgba(200,164,92,.16);vertical-align:top}
.pay-table thead th{background:rgba(200,164,92,.14);color:var(--gold-lt);font-size:.76rem;letter-spacing:.12em;text-transform:uppercase;font-weight:700;white-space:nowrap}
.pay-table tbody tr:last-child td{border-bottom:0}
.pay-table td:first-child{white-space:nowrap;color:rgba(247,243,236,.82)}
.pay-table td b,.pay-table td strong{color:var(--gold-lt)}
.pay-table tr.hl td{background:rgba(200,164,92,.1)}
.pay-scroll-hint{font-size:.78rem;opacity:.55;margin:.55rem 0 0}
.pay-lead{border-left:2px solid var(--gold);padding-left:1rem;margin:0 0 1.3rem;font-size:.99rem;color:rgba(247,243,236,.86)}
.pay-lead strong{color:var(--gold-lt)}
@media (max-width:860px){ .pay-table{font-size:.86rem} .pay-table th,.pay-table td{padding:.6rem .7rem} }

/* Desktop: xếp USP hero thành 2 cột để hero vừa một màn hình */
@media (min-width:861px){
  .hero-usp{grid-template-columns:1fr 1fr;gap:.5rem 2.2rem;max-width:none;width:min(100%,860px)}
  .hero-in{padding-top:calc(var(--hdr) + 32px)}
}

/* ---- Danh sách loại căn ---- */
.unit-list{list-style:none;margin:0 0 1.6rem;padding:0;border-top:1px solid var(--line)}
.unit-list li{border-bottom:1px solid var(--line);padding:.95rem 0}
.unit-list h3{font-size:1.08rem;margin:0 0 .15rem}
.unit-list p{margin:0;font-size:.92rem;color:var(--muted)}
.on-dark .unit-list p{color:rgba(247,243,236,.7)}

/* ---- Dải ảnh tiến độ ---- */
.gal.gal-3{grid-template-columns:repeat(3,1fr);margin-top:1.4rem}
.gal.gal-3 img{aspect-ratio:16/9}
@media (max-width:860px){ .gal.gal-3{grid-template-columns:repeat(3,1fr);gap:.4rem} .gal.gal-3 img{aspect-ratio:4/3} .gal.gal-3 figcaption{font-size:.66rem;padding:1rem .4rem .4rem} }

/* ---- Nhãn mốc thời gian cập nhật ---- */
.stamp{display:inline-flex;align-items:center;gap:.5rem;margin:0 0 .9rem;padding:.34rem .95rem;border:1px solid var(--line);border-radius:999px;font-size:.83rem;font-weight:600;color:var(--gold-dk);background:rgba(200,164,92,.08)}
.on-dark .stamp{color:var(--gold-lt)}
.stamp .dot{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 0 0 rgba(30,142,90,.55);animation:live 2s infinite}
@keyframes live{0%{box-shadow:0 0 0 0 rgba(30,142,90,.55)}70%{box-shadow:0 0 0 7px rgba(30,142,90,0)}100%{box-shadow:0 0 0 0 rgba(30,142,90,0)}}
@media (prefers-reduced-motion:reduce){ .stamp .dot{animation:none} }

/* Nút viền trên hero nằm đè ảnh sáng — cần nền mờ để đọc rõ */
.hero .btn-ghost{background:rgba(10,20,32,.5);backdrop-filter:blur(5px);border-color:rgba(227,199,123,.78);color:var(--gold-lt)}
.hero .btn-ghost:hover{background:rgba(10,20,32,.7)}

/* ---- Popup form đăng ký ---- */
.modal{position:fixed;inset:0;z-index:110;display:grid;place-items:center;
  padding:1rem calc(1rem + env(safe-area-inset-right)) calc(1rem + env(safe-area-inset-bottom)) calc(1rem + env(safe-area-inset-left));
  background:rgba(6,12,20,.74);backdrop-filter:blur(7px);opacity:0;transition:opacity .3s ease}
.modal.is-open{opacity:1}
.modal-box{position:relative;width:min(100%,470px);max-height:calc(100svh - 2rem);overflow:auto;-webkit-overflow-scrolling:touch;
  transform:translateY(22px) scale(.95);transition:transform .36s cubic-bezier(.22,.61,.36,1)}
.modal.is-open .modal-box{transform:none}
.modal-box form.lead{margin:0;box-shadow:0 30px 70px rgba(0,0,0,.5)}
.modal-close{position:absolute;top:.6rem;right:.6rem;z-index:2;width:34px;height:34px;line-height:1;
  border:0;border-radius:50%;background:rgba(28,39,51,.08);color:var(--muted);font-size:1.35rem;cursor:pointer;
  display:grid;place-items:center;transition:background .2s,color .2s}
.modal-close:hover{background:rgba(28,39,51,.16);color:var(--text)}
.modal-lead{display:flex;align-items:center;gap:.55rem;margin:-.2rem 0 1rem;padding:.5rem .8rem;
  border:1px solid var(--line);border-radius:10px;background:rgba(200,164,92,.09);font-size:.85rem;color:var(--gold-dk);font-weight:600}
.modal-lead svg{width:17px;height:17px;fill:var(--gold-dk);flex:none}
@media (prefers-reduced-motion:reduce){ .modal,.modal-box{transition:none} }
@media (max-width:480px){
  .modal{padding:.7rem}
  .modal-box form.lead{padding:1.25rem 1.1rem}
  .modal-close{top:.4rem;right:.4rem}
}

/* ---- Điểm nhấn tuyến metro ---- */
.metro-note{display:flex;gap:.85rem;align-items:flex-start;margin:0 0 1.5rem;padding:1rem 1.15rem;
  border:1px solid rgba(200,164,92,.34);border-radius:var(--radius);background:rgba(200,164,92,.09)}
.metro-note svg{width:26px;height:26px;flex:none;fill:var(--gold-lt);margin-top:.1rem}
.metro-note b{display:block;font-size:1rem;color:var(--gold-lt);margin-bottom:.2rem}
.metro-note span{font-size:.9rem;line-height:1.55;color:rgba(247,243,236,.76)}

/* ---- Bản đồ kết nối: hiện trọn khung, không cắt xén ---- */
.map-card{margin:2.4rem 0 0;padding:0;border-radius:var(--radius);overflow:hidden;background:#4a7a35;box-shadow:var(--shadow);position:relative;border:1px solid rgba(200,164,92,.22)}
.map-card img{width:100%;height:auto;display:block;cursor:zoom-in}
.map-card figcaption{position:absolute;right:.8rem;bottom:.8rem;padding:.34rem .85rem;border-radius:999px;
  background:rgba(10,20,32,.78);color:var(--gold-lt);font-size:.76rem;font-weight:600;backdrop-filter:blur(4px);pointer-events:none}
@media (min-width:861px){ .map-card figcaption{display:none} }

/* ---- Phóng to ảnh trong khung xem lớn ---- */
.lightbox img{cursor:zoom-in;transition:none}
.lightbox.is-zoom{overflow:auto;place-items:start center;-webkit-overflow-scrolling:touch}
.lightbox.is-zoom img{max-width:none;max-height:none;width:240%;cursor:zoom-out;border-radius:0}
@media (min-width:861px){ .lightbox.is-zoom img{width:150%} }
.lb-hint{position:fixed;left:50%;bottom:1.1rem;transform:translateX(-50%);z-index:2;
  padding:.35rem .9rem;border-radius:999px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  color:#fff;font-size:.76rem;font-weight:600;pointer-events:none;backdrop-filter:blur(4px)}
.lightbox.is-zoom .lb-hint{display:none}

/* ---- Bảng giá từng loại căn ---- */
.price-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:var(--radius);background:var(--paper);box-shadow:var(--shadow)}
.price-table{width:100%;border-collapse:collapse;font-size:.95rem;min-width:640px}
.price-table th,.price-table td{padding:.85rem 1rem;text-align:left;border-bottom:1px solid var(--line);vertical-align:middle}
.price-table thead th{background:rgba(200,164,92,.12);color:var(--gold-dk);font-size:.74rem;letter-spacing:.13em;text-transform:uppercase;font-weight:700;white-space:nowrap}
.price-table tbody tr:last-child td{border-bottom:0}
.price-table tbody tr:hover{background:rgba(200,164,92,.06)}
.price-table .u-name{font-weight:600;white-space:nowrap}
.price-table .u-price b{color:var(--gold-dk);font-size:1.02rem;white-space:nowrap}
.price-table .dash{opacity:.35}
.price-locked{display:inline-flex;align-items:center;gap:.4rem;font-weight:600;color:var(--muted)}
.price-locked::before{content:"";width:11px;height:13px;flex:none;background:currentColor;opacity:.7;
  -webkit-mask:no-repeat center/contain url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M17 9V7a5 5 0 0 0-10 0v2H5v12h14V9h-2zM9 7a3 3 0 0 1 6 0v2H9V7z'/%3E%3C/svg%3E");
          mask:no-repeat center/contain url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M17 9V7a5 5 0 0 0-10 0v2H5v12h14V9h-2zM9 7a3 3 0 0 1 6 0v2H9V7z'/%3E%3C/svg%3E")}
.price-table .col-cta{text-align:right;width:1%;white-space:nowrap}
.btn-sm{padding:.45rem 1rem;font-size:.86rem}
.price-note{font-size:.83rem;color:var(--muted);margin:1.1rem 0 0;max-width:78ch;line-height:1.6}
@media (max-width:860px){
  .price-table{font-size:.88rem;min-width:600px}
  .price-table th,.price-table td{padding:.7rem .8rem}
}