:root {
  --navy: #061d2c;
  --navy-2: #0b2a3f;
  --navy-3: #12384f;
  --gold: #d4a12a;
  --gold-2: #ead4a2;
  --cream: #f7f2e9;
  --cream-2: #efe6d6;
  --ink: #23303a;
  --muted: #5e6b74;
  --line: rgba(234, 212, 162, .25);
  --serif: "Cormorant Garamond", "Playfair Display", Georgia, serif;
  --sans: "Montserrat", "Segoe UI", Arial, sans-serif;
  --radius: 4px;
  --header-h: 76px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }
body { overflow-x: clip; margin: 0; font-family: var(--sans); font-size: 15px; line-height: 1.75; color: var(--ink); background: var(--cream); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3, h4 { margin: 0 0 .6em; line-height: 1.2; }
p { margin: 0 0 1em; }
.container { width: min(1200px, 100% - 40px); margin-inline: auto; }

/* ---------- Header ---------- */
.site-header { position: fixed; inset: 0 0 auto; z-index: 50; height: var(--header-h); transition: background .3s, box-shadow .3s; }
.site-header.scrolled, .site-header.open { background: rgba(6, 29, 44, .96); box-shadow: 0 2px 20px rgba(0,0,0,.25); backdrop-filter: blur(8px); }
.header-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand img { height: 38px; width: auto; }
.nav { display: flex; align-items: center; gap: 22px; }
.nav a { white-space: nowrap; color: rgba(245,239,228,.85); text-decoration: none; font-size: 11.5px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; padding: 6px 0; border-bottom: 1px solid transparent; transition: color .2s, border-color .2s; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--gold-2); border-color: var(--gold); }
.nav .nav-cta { border: 1px solid var(--gold); padding: 8px 14px; color: var(--gold-2); letter-spacing: .08em; }
.nav .nav-cta:hover { background: var(--gold); color: var(--navy); }
.menu-toggle { display: none; background: none; border: 0; padding: 10px; cursor: pointer; }
.menu-toggle span { display: block; width: 24px; height: 2px; background: var(--gold-2); margin: 5px 0; transition: transform .3s, opacity .3s; }
.site-header.open .menu-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.site-header.open .menu-toggle span:nth-child(2) { opacity: 0; }
.site-header.open .menu-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Typography helpers ---------- */
.kicker { font-size: 11px; font-weight: 600; letter-spacing: .28em; text-transform: uppercase; color: var(--gold); margin-bottom: 14px; }
.title-xl { font-family: var(--serif); font-weight: 600; font-size: clamp(40px, 7vw, 76px); letter-spacing: .12em; text-transform: uppercase; color: #fff; }
.title-lg { font-family: var(--serif); font-weight: 600; font-size: clamp(28px, 4vw, 44px); letter-spacing: .04em; text-transform: uppercase; color: var(--navy); }
.title-md { font-family: var(--serif); font-weight: 600; font-size: clamp(22px, 2.6vw, 30px); color: var(--navy); }
.section-dark .title-lg, .section-dark .title-md { color: var(--gold-2); }
.lead { font-size: 16px; color: var(--muted); max-width: 760px; }
.section-dark .lead, .section-dark p { color: rgba(245,239,228,.82); }
.center { text-align: center; }
.center .lead { margin-inline: auto; }
.divider { width: 64px; height: 1px; background: var(--gold); margin: 18px 0 24px; border: 0; }
.center .divider { margin-inline: auto; }

/* ---------- Buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 14px 26px; font: 600 11.5px/1 var(--sans); letter-spacing: .18em; text-transform: uppercase; text-decoration: none; border: 1px solid var(--gold); border-radius: var(--radius); cursor: pointer; transition: background .2s, color .2s, transform .2s; }
.btn:hover { transform: translateY(-1px); }
.btn-gold { background: var(--gold); color: var(--navy); }
.btn-gold:hover { background: var(--gold-2); border-color: var(--gold-2); }
.btn-ghost { background: transparent; color: var(--gold-2); }
.btn-ghost:hover { background: rgba(212,161,42,.15); }
.btn-dark { background: var(--navy); color: var(--gold-2); border-color: var(--navy); }
.btn-dark:hover { background: var(--navy-3); }
.btn-block { width: 100%; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.center .btn-row { justify-content: center; }

/* ---------- Sections ---------- */
.section { padding: clamp(64px, 9vw, 110px) 0; }
.section-dark { background: var(--navy); color: rgba(245,239,228,.82); }
.section-navy2 { background: var(--navy-2); }
.section-cream2 { background: var(--cream-2); }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 6vw, 80px); align-items: center; }
.split.reverse > :first-child { order: 2; }
.frame { position: relative; }
.frame img { width: 100%; border-radius: var(--radius); box-shadow: 0 30px 60px -30px rgba(6,29,44,.55); }
.frame::after { content: ""; position: absolute; inset: 18px -18px -18px 18px; border: 1px solid var(--gold); z-index: -1; border-radius: var(--radius); }
.caption { font-size: 12px; color: var(--muted); margin-top: 10px; font-style: italic; }
.section-dark .caption { color: rgba(245,239,228,.55); }

/* ---------- Hero ---------- */
.hero { position: relative; min-height: 100svh; display: grid; place-items: center; text-align: center; color: #fff; overflow: hidden; background: var(--navy); }
.hero-bg { position: absolute; inset: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; animation: kenburns 22s ease-out both; }
.hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(6,29,44,.65) 0%, rgba(6,29,44,.25) 45%, rgba(6,29,44,.85) 100%); }
.hero-content { position: relative; z-index: 1; padding: calc(var(--header-h) + 40px) 0 80px; }
.hero .sub { font-family: var(--serif); font-size: clamp(22px, 3.2vw, 36px); color: var(--gold-2); letter-spacing: .08em; text-transform: uppercase; margin-bottom: 14px; }
.hero p.desc { max-width: 620px; margin: 0 auto; color: rgba(255,255,255,.85); font-size: 16px; }
.hero .btn-row { justify-content: center; }
.hero-sm { min-height: 62vh; }
.scroll-hint { position: absolute; bottom: 26px; left: 50%; z-index: 1; width: 22px; height: 36px; border: 1px solid var(--gold-2); border-radius: 12px; transform: translateX(-50%); }
.scroll-hint::after { content: ""; position: absolute; left: 50%; top: 7px; width: 3px; height: 7px; background: var(--gold-2); border-radius: 2px; transform: translateX(-50%); animation: scrolly 1.8s infinite; }
@keyframes kenburns { from { transform: scale(1.12); } to { transform: scale(1); } }
@keyframes scrolly { 0% { opacity: 0; top: 6px; } 40% { opacity: 1; } 100% { opacity: 0; top: 18px; } }

/* ---------- Stats ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.stat { padding: 34px 16px; text-align: center; border-right: 1px solid var(--line); }
.stat:last-child { border-right: 0; }
.stat b { display: block; font-family: var(--serif); font-size: clamp(34px, 4vw, 52px); font-weight: 600; color: var(--gold-2); line-height: 1.1; }
.stat span { font-size: 11px; letter-spacing: .2em; text-transform: uppercase; color: rgba(245,239,228,.7); }
.stats.light { border-color: rgba(6,29,44,.15); }
.stats.light .stat { border-color: rgba(6,29,44,.15); }
.stats.light .stat b { color: var(--navy); }
.stats.light .stat span { color: var(--muted); }

/* ---------- Fact table ---------- */
.facts { width: 100%; border-collapse: collapse; margin-top: 10px; }
.facts th, .facts td { text-align: left; padding: 14px 16px; border-bottom: 1px solid rgba(6,29,44,.12); vertical-align: top; }
.facts th { width: 34%; font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); font-weight: 600; }
.facts td { color: var(--navy); font-weight: 500; }
.section-dark .facts th, .section-dark .facts td { border-color: var(--line); }
.section-dark .facts td { color: #f5efe4; }
.table-wrap { overflow-x: auto; }

/* ---------- Cards ---------- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 44px; }
.cards.four { grid-template-columns: repeat(4, 1fr); }
.cards.two { grid-template-columns: repeat(2, 1fr); }
.card { background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: 0 18px 40px -28px rgba(6,29,44,.45); display: flex; flex-direction: column; transition: transform .3s; }
.card:hover { transform: translateY(-4px); }
.card .card-img { aspect-ratio: 4 / 3; overflow: hidden; }
.card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
.card:hover .card-img img { transform: scale(1.06); }
.card-body { padding: 24px 24px 28px; flex: 1; }
.card-num { font-family: var(--serif); font-size: 15px; color: var(--gold); letter-spacing: .1em; }
.card h3 { font-family: var(--serif); font-size: 24px; font-weight: 600; color: var(--navy); margin: 4px 0 10px; }
.card p { font-size: 14px; color: var(--muted); margin: 0; }
.section-dark .card { background: var(--navy-2); box-shadow: none; border: 1px solid var(--line); }
.section-dark .card h3 { color: var(--gold-2); }
.section-dark .card p { color: rgba(245,239,228,.75); }
.unit-card { padding: 30px 26px; text-align: center; border-top: 2px solid var(--gold); }
.unit-card .area { font-family: var(--serif); font-size: 30px; color: var(--gold); font-weight: 600; margin: 6px 0 10px; }

/* ---------- Amenity mosaic ---------- */
.amenity { display: grid; grid-template-columns: 1.1fr 1fr; gap: 0; align-items: stretch; margin-top: 56px; background: var(--navy-2); }
.amenity:nth-of-type(even) .amenity-img { order: 2; }
.amenity-img { min-height: 380px; position: relative; }
.amenity-img img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.amenity-body { padding: clamp(32px, 5vw, 64px); display: flex; flex-direction: column; justify-content: center; }
.amenity-body .floor { font-size: 11px; letter-spacing: .25em; text-transform: uppercase; color: var(--gold); }
.amenity-body h3 { font-family: var(--serif); font-size: clamp(26px, 3vw, 36px); color: var(--gold-2); font-weight: 600; margin: 8px 0 14px; }

/* ---------- Tabs ---------- */
.tabs { margin-top: 40px; }
.tab-list { display: flex; flex-wrap: wrap; gap: 8px; border-bottom: 1px solid rgba(6,29,44,.15); margin-bottom: 36px; }
.tab-list button { background: none; border: 0; border-bottom: 2px solid transparent; padding: 14px 20px; font: 600 12px/1 var(--sans); letter-spacing: .16em; text-transform: uppercase; color: var(--muted); cursor: pointer; margin-bottom: -1px; }
.tab-list button[aria-selected="true"] { color: var(--navy); border-color: var(--gold); }
[role="tabpanel"][hidden] { display: none !important; }
.spec { list-style: none; padding: 0; margin: 18px 0; }
.spec li { padding: 9px 0 9px 26px; border-bottom: 1px dashed rgba(6,29,44,.15); position: relative; }
.spec li::before { content: "◆"; position: absolute; left: 0; top: 9px; color: var(--gold); font-size: 10px; }
.spec b { color: var(--navy); }

/* ---------- Gallery ---------- */
.gallery { display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: 220px; gap: 10px; margin-top: 44px; }
.gallery a { position: relative; overflow: hidden; border-radius: var(--radius); display: block; }
.gallery a:nth-child(1), .gallery a:nth-child(6) { grid-column: span 2; grid-row: span 2; }
.gallery img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
.gallery a:hover img { transform: scale(1.07); }
.gallery a span { position: absolute; left: 0; right: 0; bottom: 0; padding: 30px 14px 10px; font-size: 12px; color: #fff; letter-spacing: .06em; background: linear-gradient(transparent, rgba(6,29,44,.8)); opacity: 0; transition: opacity .3s; }
.gallery a:hover span { opacity: 1; }

/* ---------- Lightbox ---------- */
.lightbox { position: fixed; inset: 0; z-index: 100; background: rgba(3,14,22,.94); display: grid; place-items: center; padding: 40px 16px; }
.lightbox[hidden] { display: none; }
.lightbox img { max-height: 82vh; width: auto; border-radius: var(--radius); }
.lightbox-cap { color: var(--gold-2); text-align: center; margin-top: 12px; font-size: 13px; }
.lightbox-close { position: absolute; top: 14px; right: 18px; background: none; border: 0; color: #fff; font-size: 40px; cursor: pointer; line-height: 1; }

/* ---------- Accordion / FAQ ---------- */
.faq { max-width: 880px; margin: 40px auto 0; }
.faq details { border-bottom: 1px solid rgba(6,29,44,.15); }
.faq summary { list-style: none; cursor: pointer; padding: 20px 40px 20px 0; position: relative; font-family: var(--serif); font-size: 21px; font-weight: 600; color: var(--navy); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 50%; transform: translateY(-50%); font-family: var(--sans); font-size: 22px; color: var(--gold); transition: transform .3s; }
.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq details > div { padding: 0 0 20px; color: var(--muted); }
.section-dark .faq details { border-color: var(--line); }
.section-dark .faq summary { color: var(--gold-2); }

/* ---------- Timeline ---------- */
.timeline { position: relative; margin-top: 44px; padding-left: 34px; }
.timeline::before { content: ""; position: absolute; left: 8px; top: 6px; bottom: 6px; width: 1px; background: var(--gold); }
.timeline .step { position: relative; padding-bottom: 32px; }
.timeline .step::before { content: ""; position: absolute; left: -32px; top: 6px; width: 13px; height: 13px; border: 2px solid var(--gold); border-radius: 50%; background: var(--cream); }
.timeline .step.done::before, .timeline .step.now::before { background: var(--gold); }
.timeline .step.now::after { content: "Đang triển khai"; position: absolute; top: 0; right: 0; font-size: 10px; letter-spacing: .14em; text-transform: uppercase; background: var(--gold); color: var(--navy); padding: 3px 9px; border-radius: 20px; font-weight: 700; }
.timeline h3 { font-family: var(--serif); font-size: 23px; color: var(--navy); margin-bottom: 6px; }

/* ---------- Docs list ---------- */
.docs { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 36px; }
.doc { display: flex; gap: 16px; align-items: center; padding: 20px 22px; background: #fff; border: 1px solid rgba(6,29,44,.1); border-radius: var(--radius); }
.doc-ico { flex: none; width: 46px; height: 54px; display: grid; place-items: center; background: var(--navy); color: var(--gold-2); font: 700 11px var(--sans); border-radius: 3px; }
.doc h4 { margin: 0 0 2px; font-size: 15px; color: var(--navy); }
.doc p { margin: 0; font-size: 13px; color: var(--muted); }
.doc .btn { margin-left: auto; padding: 10px 14px; font-size: 10px; }

/* ---------- Register form ---------- */
.register { background: linear-gradient(rgba(6,29,44,.92), rgba(6,29,44,.92)), url(/images/Phoi-canh-Tara-Maison-ban-ngay.webp) center / cover; }
.register-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 6vw, 80px); align-items: center; }
.checklist { list-style: none; padding: 0; margin: 20px 0 26px; }
.checklist li { padding: 7px 0 7px 30px; position: relative; color: #f5efe4; }
.checklist li::before { content: "✓"; position: absolute; left: 0; color: var(--gold); font-weight: 700; }
.register-contact { display: flex; flex-wrap: wrap; gap: 12px; }
.lead-form { background: var(--cream); color: var(--ink); padding: clamp(24px, 4vw, 40px); border-radius: var(--radius); border-top: 3px solid var(--gold); box-shadow: 0 40px 80px -40px rgba(0,0,0,.6); }
.lead-form h3 { font-family: var(--serif); font-size: 28px; color: var(--navy); margin-bottom: 18px; }
.lead-form label { display: block; font-size: 12px; font-weight: 600; letter-spacing: .04em; color: var(--navy); margin-bottom: 14px; }
.lead-form input, .lead-form select, .lead-form textarea { display: block; width: 100%; margin-top: 6px; padding: 12px 14px; font: 400 15px var(--sans); color: var(--ink); background: #fff; border: 1px solid rgba(6,29,44,.18); border-radius: var(--radius); }
.lead-form input:focus, .lead-form select:focus, .lead-form textarea:focus { outline: 2px solid var(--gold); outline-offset: 0; border-color: var(--gold); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.captcha { display: flex !important; align-items: center; flex-wrap: wrap; gap: 8px; }
.captcha span { font-size: 16px; color: var(--gold); font-weight: 700; }
.captcha input { width: 110px; margin: 0; }
.hp { position: absolute !important; left: -9999px; }
.form-msg { margin: 12px 0 0; font-size: 14px; font-weight: 600; min-height: 1em; }
.form-msg.ok { color: #1f7a4a; }
.form-msg.err { color: #b3261e; }
.form-note { font-size: 12px; color: var(--muted); margin: 8px 0 0; }

/* ---------- Map ---------- */
.map-embed { width: 100%; aspect-ratio: 16 / 10; border: 0; border-radius: var(--radius); filter: saturate(.85); }

/* ---------- Prose (legal / articles) ---------- */
.prose { max-width: 820px; margin-inline: auto; }
.prose h2 { font-family: var(--serif); font-size: 30px; color: var(--navy); margin-top: 1.6em; }
.prose h3 { font-size: 17px; color: var(--navy); margin-top: 1.4em; }
.prose ul { padding-left: 1.2em; }
.prose li { margin-bottom: .4em; }
.note { padding: 18px 22px; background: #fff; border-left: 3px solid var(--gold); color: var(--muted); font-size: 14px; border-radius: 0 var(--radius) var(--radius) 0; }

/* ---------- Footer ---------- */
.site-footer { background: #041521; color: rgba(245,239,228,.72); padding: 70px 0 110px; font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 40px; }
.footer-logo { height: 38px; width: auto; margin-bottom: 18px; }
.site-footer h4 { font-size: 12px; letter-spacing: .2em; text-transform: uppercase; color: var(--gold-2); margin-bottom: 16px; }
.site-footer a { display: block; text-decoration: none; padding: 4px 0; color: rgba(245,239,228,.72); }
.site-footer p a { display: inline; color: var(--gold-2); }
.site-footer a:hover { color: var(--gold-2); }
.footer-note { margin-top: 44px; padding-top: 24px; border-top: 1px solid var(--line); font-size: 12.5px; color: rgba(245,239,228,.55); }

/* ---------- Floating actions ---------- */
.float-actions { position: fixed; right: 18px; bottom: 24px; z-index: 40; display: flex; flex-direction: column; gap: 12px; }
.float-actions a { width: 54px; height: 54px; border-radius: 50%; display: grid; place-items: center; text-decoration: none; font-weight: 700; color: #fff; box-shadow: 0 8px 24px rgba(0,0,0,.3); }
.fa-zalo { background: #0068ff; font-size: 13px; }
.fa-call { background: var(--gold); color: var(--navy) !important; font-size: 22px; animation: pulse 2s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(212,161,42,.6); } 70% { box-shadow: 0 0 0 16px rgba(212,161,42,0); } 100% { box-shadow: 0 0 0 0 rgba(212,161,42,0); } }
.mobile-bar { display: none; }

/* ---------- Reveal ---------- */
.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.js .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; } .hero-bg img, .fa-call { animation: none; } }

/* ---------- Responsive ---------- */
@media (max-width: 1300px) {
  .nav { gap: 16px; }
  .nav a { font-size: 10.5px; letter-spacing: .1em; }
}
@media (max-width: 1140px) {
  :root { --header-h: 64px; }
  .menu-toggle { display: block; }
  .nav { position: fixed; top: var(--header-h); left: 0; right: 0; bottom: 0; flex-direction: column; align-items: stretch; gap: 0; padding: 12px 24px 40px; background: rgba(6,29,44,.98); opacity: 0; visibility: hidden; transform: translateY(-8px); transition: opacity .3s, transform .3s, visibility .3s; overflow-y: auto; }
  .site-header.open .nav { opacity: 1; visibility: visible; transform: none; }
  .nav a { font-size: 13px; padding: 16px 0; border-bottom: 1px solid var(--line); }
  .nav .nav-cta { margin-top: 20px; text-align: center; }
}
@media (max-width: 980px) {
  .split, .register-grid, .amenity { grid-template-columns: 1fr; }
  .split.reverse > :first-child, .amenity:nth-of-type(even) .amenity-img { order: 0; }
  .cards, .cards.four { grid-template-columns: repeat(2, 1fr); }
  .gallery { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 170px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > :first-child { grid-column: 1 / -1; }
  .frame::after { display: none; }
}
@media (max-width: 640px) {
  body { font-size: 14.5px; }
  .container { width: calc(100% - 32px); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2) { border-right: 0; }
  .stat:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .cards, .cards.four, .cards.two, .docs, .form-row { grid-template-columns: 1fr; }
  .gallery a:nth-child(1), .gallery a:nth-child(6) { grid-column: span 2; grid-row: span 1; }
  .amenity-img { min-height: 260px; }
  .facts th { width: 40%; padding: 12px 10px; }
  .facts td { padding: 12px 10px; }
  .doc { flex-wrap: wrap; }
  .doc .btn { margin-left: 62px; }
  .float-actions { display: none; }
  .mobile-bar { display: grid; grid-template-columns: 1fr 1fr 1.3fr; position: fixed; left: 0; right: 0; bottom: 0; z-index: 45; background: var(--navy); border-top: 1px solid var(--line); }
  .mobile-bar a { padding: 14px 6px; text-align: center; font-size: 12px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--gold-2); text-decoration: none; }
  .mobile-bar a + a { border-left: 1px solid var(--line); }
  .mobile-bar .mb-gold { background: var(--gold); color: var(--navy); }
  .footer-grid { grid-template-columns: 1fr; }
  .tab-list button { padding: 12px 10px; font-size: 10.5px; letter-spacing: .1em; }
}