/* =====================================================================
   T REALTY – CSS DÙNG CHUNG TOÀN WEBSITE
   ---------------------------------------------------------------------
   Muốn đổi MÀU hoặc FONT cho cả website: chỉ cần sửa các biến trong
   khối :root ngay bên dưới. Không ghi mã màu ở chỗ khác.
   ===================================================================== */

:root {
  /* --- Màu chủ đạo: đỏ rượu vang + đồng --- */
  --color-primary: #4e1a14;        /* đỏ rượu vang – nền tối, chữ tiêu đề, nút chính */
  --color-primary-hover: #6a2519;  /* đỏ rượu vang sáng hơn – khi rê chuột vào nút */
  --color-gold: #d39868;           /* đồng – điểm nhấn */
  --color-gold-hover: #e0ac80;     /* đồng sáng – khi rê chuột */
  --color-gold-dark: #9a5530;      /* đồng đậm – chữ nhỏ trên nền sáng */

  /* --- Nền --- */
  --color-bg: #f8f1e9;             /* kem – nền chính */
  --color-bg-alt: #f0e2d4;         /* kem đậm – nền xen kẽ */
  --color-bg-image: #e2cdb9;       /* màu chờ khi ảnh chưa tải */
  --color-bg-deep: #2e1d18;        /* nâu rất đậm – chân trang */
  --color-white: #ffffff;
  --color-header-bg: rgba(246, 242, 234, 0.94);

  /* --- Chữ --- */
  --color-ink: #17181b;            /* chữ nội dung */
  --color-ink-soft: #2e1d18;       /* chữ menu, nhãn form */
  --color-muted: #735f52;          /* chữ phụ, chú thích */
  --color-on-dark: #f8f1e9;        /* chữ trên nền tối */
  --color-on-dark-muted: #dcc4b4;  /* chữ phụ trên nền tối */
  --color-on-dark-soft: #ecdcd0;
  --color-error: #a3372b;

  /* --- Đường kẻ --- */
  --color-line: #e5d3c2;
  --color-line-strong: #d8bfa9;
  --color-line-mid: #dcc6b2;
  --color-line-soft: #ead9c9;
  --color-line-on-dark: rgba(246, 242, 234, 0.18);
  --color-line-on-dark-soft: rgba(246, 242, 234, 0.12);
  --color-line-on-dark-strong: rgba(246, 242, 234, 0.35);

  /* --- Lớp phủ --- */
  --overlay-primary: rgba(78, 26, 20, 0.72);
  --overlay-lightbox: rgba(24, 10, 8, 0.94);
  --shadow-soft: 0 6px 20px rgba(78, 26, 20, 0.14);

  /* --- Font (Google Fonts, hỗ trợ đủ tiếng Việt) --- */
  --font-heading: 'Be Vietnam Pro', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-logo: 'Cormorant Garamond', 'Times New Roman', serif; /* chữ logo THE COLLECTION 688 */

  /* --- Màu logo (hiệu ứng đồng ánh kim như logo gốc) --- */
  --logo-gradient: linear-gradient(135deg, #c8805f 0%, #9a5530 55%, #6e2a1c 100%);        /* trên nền sáng */
  --logo-gradient-light: linear-gradient(135deg, #f6d2b5 0%, #e3a887 50%, #c97c5d 100%);  /* trên nền tối */

  /* --- Kích thước --- */
  --container: 1240px;
  --container-wide: 1320px;
  --gutter: 24px;
  --header-h: 72px;
  --radius: 3px;
  --section-pad: clamp(80px, 10vw, 140px);
  --section-pad-sm: clamp(80px, 10vw, 130px);
}

/* ---------- Nền tảng ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 4px); -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body.is-locked { overflow: hidden; }
a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-gold-dark); }
img { display: block; max-width: 100%; }
button, input, select, textarea { font-family: inherit; }
button { cursor: pointer; }
h1, h2, h3, h4, p, figure, dl, dd { margin: 0; }
[hidden] { display: none !important; }
:focus-visible { outline: 2px solid var(--color-gold); outline-offset: 2px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

/* ---------- Bố cục ---------- */
.container { max-width: var(--container); margin: 0 auto; }
.section { padding: var(--section-pad) var(--gutter); background: var(--color-bg); }
.section--sm { padding-top: var(--section-pad-sm); padding-bottom: var(--section-pad-sm); }
.section--alt { background: var(--color-bg-alt); }
.section--dark { background: var(--color-primary); color: var(--color-on-dark); }

/* Hàng co giãn: các cột tự xuống dòng trên điện thoại.
   Độ rộng gợi ý của từng cột đặt bằng biến --b (vd: style="--b:520px") */
.row { display: flex; flex-wrap: wrap; gap: var(--gap, 40px 72px); align-items: var(--align, flex-start); }
.row--center { --align: center; }
.row--end { --align: flex-end; }
.row--stretch { --align: stretch; }
.row--reverse { flex-wrap: wrap-reverse; }
.col { flex: var(--grow, 1) 1 var(--b, 400px); min-width: 0; }
.col--fixed { --grow: 0; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, var(--min, 240px)), 1fr)); gap: var(--gap, 28px); }
.stack { display: flex; flex-direction: column; }

/* ---------- Chữ ---------- */
.eyebrow {
  display: flex; align-items: center; gap: 14px;
  font-size: 12px; letter-spacing: 0.22em; text-transform: uppercase; font-weight: 600;
  color: var(--color-gold-dark);
}
.eyebrow::before { content: ""; width: 32px; height: 1px; background: var(--color-gold); flex: none; }
.section--dark .eyebrow, .eyebrow--light { color: var(--color-gold); }
.eyebrow--plain::before { display: none; }

.h1, .h2, .h3, .display { font-family: var(--font-heading); color: var(--color-primary); }
.section--dark .h1, .section--dark .h2, .section--dark .h3, .section--dark .display { color: inherit; }
.h2 { margin-top: 20px; font-weight: 500; font-size: clamp(32px, 4.2vw, 56px); line-height: 1.08; letter-spacing: -0.02em; text-wrap: balance; }
.h2--md { font-size: clamp(30px, 3.6vw, 48px); line-height: 1.1; }
.h2--light { font-weight: 400; }
.h3 { font-weight: 500; font-size: clamp(26px, 2.8vw, 36px); line-height: 1.2; }
.accent { color: var(--color-gold); }

.lead { margin-top: 22px; font-size: 17px; line-height: 1.75; color: var(--color-muted); text-wrap: pretty; }
.lead--sm { font-size: 16.5px; }
.text { font-size: 15.5px; line-height: 1.7; color: var(--color-muted); }
.note { margin-top: 12px; font-size: 12.5px; line-height: 1.6; color: var(--color-muted); }
.section--dark .lead, .section--dark .text, .section--dark .note { color: var(--color-on-dark-muted); }
.quote {
  margin-top: 28px; padding-left: 20px; border-left: 1px solid var(--color-gold);
  font-family: var(--font-heading); font-size: 19px; line-height: 1.6; color: var(--color-primary);
}
.label-caps { font-size: 13px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--color-ink); }
strong { color: var(--color-ink); font-weight: 600; }

/* ---------- Nút ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 52px; padding: 0 24px; max-width: 100%;
  border: 1px solid transparent; border-radius: var(--radius);
  font-size: 14px; font-weight: 600; letter-spacing: 0.02em; white-space: nowrap;
  cursor: pointer; transition: background-color .2s, color .2s, border-color .2s;
  text-decoration: none;
}
.btn svg { flex: none; }
.btn--lg { min-height: 54px; padding: 0 26px; }
.btn--sm { min-height: 42px; padding: 0 16px; font-size: 13.5px; }
.btn--block { width: 100%; }
.btn--primary { background: var(--color-primary); color: var(--color-on-dark); }
.btn--primary:hover { background: var(--color-primary-hover); color: var(--color-on-dark); }
.btn--gold { background: var(--color-gold); color: var(--color-primary); }
.btn--gold:hover { background: var(--color-gold-hover); color: var(--color-primary); }
.btn--outline { background: transparent; color: var(--color-primary); border-color: var(--color-primary); }
.btn--outline:hover { background: var(--color-primary); color: var(--color-on-dark); }
.btn--ghost { background: transparent; color: var(--color-on-dark); border-color: var(--color-line-on-dark-strong); }
.btn--ghost:hover { border-color: var(--color-gold); color: var(--color-gold); }
.btn:disabled { opacity: .6; cursor: wait; }

.icon-btn {
  width: 46px; height: 46px; display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--color-line-on-dark-strong); background: transparent; color: var(--color-on-dark);
  border-radius: 50%; transition: border-color .2s, color .2s;
}
.icon-btn:hover { border-color: var(--color-gold); color: var(--color-gold); }

/* Nhóm nút chọn (tab) */
.chips { display: flex; gap: 8px; }
.chips--scroll { overflow-x: auto; padding-bottom: 4px; scrollbar-width: none; }
.chips--wrap { flex-wrap: wrap; }
.chip {
  flex: 0 0 auto; height: 44px; padding: 0 18px;
  border: 1px solid var(--color-line); background: var(--color-white); color: var(--color-ink);
  border-radius: 2px; font-size: 14px; font-weight: 600; white-space: nowrap;
}
.chip--sm { height: 40px; padding: 0 16px; font-size: 13.5px; }
.chip.is-active { background: var(--color-primary); color: var(--color-on-dark); border-color: var(--color-primary); }

.segmented { display: flex; border: 1px solid var(--color-line); border-radius: 2px; padding: 3px; background: var(--color-white); }
.segmented button { height: 38px; padding: 0 16px; border: none; border-radius: 2px; background: transparent; color: var(--color-ink); font-size: 13.5px; font-weight: 600; }
.segmented button.is-active { background: var(--color-primary); color: var(--color-on-dark); }

.tabs-line { display: flex; gap: 4px; border-bottom: 1px solid var(--color-line); overflow-x: auto; scrollbar-width: none; }
.tabs-line button {
  flex: none; padding: 14px 18px; background: transparent; border: none; border-bottom: 2px solid transparent; margin-bottom: -1px;
  font-size: 14px; font-weight: 600; color: var(--color-muted); white-space: nowrap;
}
.tabs-line button.is-active { border-bottom-color: var(--color-primary); color: var(--color-primary); }

/* Danh sách có dấu tích */
.checklist { display: flex; flex-direction: column; }
.checklist li { display: flex; gap: 14px; align-items: center; padding: 13px 0; border-bottom: 1px solid var(--color-line-mid); font-size: 15.5px; color: var(--color-ink); }
.checklist--plain li { border-bottom: none; padding: 0; gap: 12px; }
.checklist svg { flex: none; color: var(--color-gold-dark); }
.section--dark .checklist svg { color: var(--color-gold); }
ul.checklist, ul.list, ol.numlist { list-style: none; margin: 0; padding: 0; }

.list li { padding: 13px 0; border-bottom: 1px solid var(--color-line); font-size: 15px; color: var(--color-ink); }
.list--mid li { border-bottom-color: var(--color-line-mid); font-size: 15.5px; }

.numlist li { display: flex; gap: 18px; align-items: baseline; padding: 16px 0; border-bottom: 1px solid var(--color-line); }
.numlist .n { font-family: var(--font-heading); font-size: 13px; font-weight: 600; color: var(--color-gold-dark); }
.numlist .t { font-size: 16px; color: var(--color-ink); }

.tag { padding: 8px 14px; border: 1px solid var(--color-line-strong); border-radius: 2px; font-size: 14px; color: var(--color-ink); background: var(--color-bg); }
.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.section--dark .tag { padding: 8px 12px; border-color: rgba(246, 242, 234, 0.22); background: transparent; color: var(--color-on-dark); font-size: 13.5px; }

/* ---------- Ảnh ---------- */
/* Khung ảnh có tỉ lệ cố định; ảnh bên trong có thể phóng to/dịch lên để cắt bớt chữ trên poster.
   Dùng biến: --ar (tỉ lệ khung), --top, --h (chiều cao ảnh), --pos (điểm lấy nét) */
.media { position: relative; overflow: hidden; aspect-ratio: var(--ar, 4 / 3); background: var(--color-bg-alt); }
.media > img { position: absolute; left: 0; top: var(--top, 0); width: 100%; height: var(--h, 100%); max-width: none; object-fit: cover; object-position: var(--pos, center); }
.section--dark .media { background: var(--color-primary-hover); }
.zoom { display: block; width: 100%; padding: 0; border: none; background: var(--color-bg-alt); cursor: zoom-in; position: relative; overflow: hidden; }
.zoom > img { width: 100%; height: auto; }
figcaption { margin-top: 12px; font-size: 12.5px; color: var(--color-muted); }
.section--dark figcaption { color: var(--color-on-dark-muted); }

/* ======================================================================
   ĐẦU TRANG (HEADER)
   ====================================================================== */
.site-header {
  position: sticky; top: 0; z-index: 60;
  background: var(--color-header-bg);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-line);
}
.site-header__bar {
  max-width: var(--container-wide); margin: 0 auto; height: var(--header-h); padding: 0 var(--gutter);
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
/* Logo chữ THE / COLLECTION / 688 – căn giữa, chữ có chân, màu đồng ánh kim */
.logo {
  display: inline-flex; flex-direction: column; align-items: center; flex: none;
  line-height: 1; font-family: var(--font-logo); font-weight: 600; font-variant-numeric: lining-nums;
  color: var(--color-gold-dark);
  background: var(--logo-gradient); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.logo__line { font-size: 12.5px; letter-spacing: 0.04em; }
.logo__line + .logo__line { margin-top: 1px; }
.logo__num { font-size: 34px; font-weight: 500; letter-spacing: -0.06em; line-height: 0.82; margin-top: 2px; padding: 0 0.06em 0.16em 0; } /* chừa chỗ để màu đồng phủ hết chân chữ số */
.logo:hover { opacity: .85; }

.nav-desktop { display: none; gap: 26px; align-items: center; }
.nav-desktop a { font-size: 13.5px; font-weight: 500; color: var(--color-ink-soft); white-space: nowrap; }
.nav-desktop a:hover { color: var(--color-gold-dark); }

.header-actions { display: flex; align-items: center; gap: 12px; }
.header-tel { display: none; align-items: center; gap: 8px; font-size: 14px; font-weight: 600; white-space: nowrap; }
.header-cta { min-height: 42px; padding: 0 18px; font-size: 13px; }

.lang-switch { display: flex; align-items: center; gap: 6px; font-size: 12.5px; font-weight: 600; letter-spacing: 0.06em; color: var(--color-muted); }
.lang-switch a { color: var(--color-muted); padding: 4px 0; }
.lang-switch a[aria-current="true"] { color: var(--color-primary); border-bottom: 1px solid var(--color-gold); }
.lang-switch span { color: var(--color-line-strong); }

.menu-btn {
  width: 42px; height: 42px; display: flex; align-items: center; justify-content: center;
  background: transparent; border: 1px solid var(--color-line); border-radius: var(--radius); color: var(--color-primary);
}
.nav-mobile { border-top: 1px solid var(--color-line); padding: 8px var(--gutter) 20px; display: flex; flex-direction: column; background: var(--color-bg); }
.nav-mobile a { padding: 14px 0; border-bottom: 1px solid var(--color-line); font-family: var(--font-heading); font-size: 17px; font-weight: 500; color: var(--color-primary); }

@media (max-width: 420px) {
  .site-header__bar { padding: 0 16px; gap: 10px; }
  .header-cta { padding: 0 12px; }
  .header-actions { gap: 8px; }
}
@media (min-width: 1180px) {
  .nav-desktop { display: flex; }
  .header-tel { display: flex; }
  .menu-btn, .nav-mobile { display: none !important; }
}

/* ======================================================================
   ẢNH BÌA (HERO)
   ====================================================================== */
.hero {
  position: relative; min-height: clamp(640px, 92vh, 940px); overflow: hidden;
  background: var(--color-primary); color: var(--color-on-dark);
  display: flex; align-items: flex-end;
}
.hero__img { position: absolute; left: 0; top: -14%; width: 100%; height: 145%; max-width: none; object-fit: cover; object-position: 62% center; }
.hero__shade-x { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(78,26,20,.95) 0%, rgba(78,26,20,.78) 38%, rgba(78,26,20,.25) 75%, rgba(78,26,20,.1) 100%); }
.hero__shade-y { position: absolute; inset: 0; background: linear-gradient(0deg, rgba(78,26,20,.9) 0%, rgba(78,26,20,0) 45%); }
.hero__inner { position: relative; width: 100%; max-width: var(--container-wide); margin: 0 auto; padding: clamp(56px, 8vw, 96px) var(--gutter) clamp(40px, 5vw, 64px); }
.hero__content { max-width: 760px; display: flex; flex-direction: column; gap: 26px; }
.hero h1 { font-family: var(--font-heading); font-weight: 400; font-size: clamp(40px, 6vw, 84px); line-height: 1.02; letter-spacing: -0.025em; text-wrap: balance; }
.hero h1 span { color: var(--color-gold); font-weight: 300; }
.hero__lead { max-width: 600px; font-size: 17px; line-height: 1.7; color: var(--color-on-dark-soft); text-wrap: pretty; }
.hero__ctas { display: flex; flex-wrap: wrap; gap: 12px; }
.hero__ctas .btn--ghost { border-color: rgba(246, 242, 234, 0.45); }
.hero__stats { margin-top: clamp(40px, 6vw, 72px); padding-top: 26px; border-top: 1px solid rgba(246, 242, 234, 0.2); display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 24px 32px; }
.stat__k { font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-on-dark-muted); }
.stat__v { margin-top: 8px; font-family: var(--font-heading); font-size: clamp(26px, 2.6vw, 34px); font-weight: 500; }
.stat__v small { font-size: 14px; font-weight: 400; color: var(--color-on-dark-muted); }
.hero__foot { margin-top: 18px; font-size: 12.5px; color: var(--color-on-dark-muted); }
@media (max-width: 480px) {
  .hero__ctas .btn { width: 100%; white-space: normal; text-align: center; }
  .hero__stats { grid-template-columns: 1fr 1fr; gap: 20px 16px; }
}

/* ======================================================================
   CÁC KHỐI NỘI DUNG
   ====================================================================== */
/* Tổng quan – bảng thông số */
.facts { margin-top: 44px; display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); column-gap: 40px; }
.facts > div { display: flex; justify-content: space-between; gap: 16px; padding: 15px 0; border-bottom: 1px solid var(--color-line); }
.facts dt { font-size: 14px; color: var(--color-muted); }
.facts dd { font-size: 14.5px; font-weight: 600; color: var(--color-ink); text-align: right; }

/* 6 giá trị */
.values { margin-top: 56px; --min: 320px; --gap: 48px 40px; }
.value { padding-top: 26px; border-top: 1px solid var(--color-line-strong); }
.value__n { font-family: var(--font-heading); font-size: 14px; font-weight: 600; color: var(--color-gold-dark); letter-spacing: 0.08em; }
.value h3 { margin-top: 14px; font-family: var(--font-heading); font-size: 23px; font-weight: 500; line-height: 1.25; color: var(--color-primary); }
.value p { margin-top: 12px; font-size: 15.5px; line-height: 1.7; color: var(--color-muted); text-wrap: pretty; }

/* Vị trí */
.layers { margin-top: 40px; display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.layers .pill { padding: 10px 16px; border: 1px solid var(--color-line-strong); border-radius: 2px; font-size: 14px; font-weight: 600; color: var(--color-primary); background: var(--color-white); }
.layers .plus { color: var(--color-gold-dark); font-size: 18px; }
.map-view { display: block; width: 100%; margin-top: 20px; padding: 0; border: 1px solid var(--color-line); background: var(--color-bg-alt); cursor: zoom-in; aspect-ratio: 16 / 9; overflow: hidden; }
.map-view img { width: 100%; height: 100%; object-fit: cover; }
.map-embed { margin-top: 20px; aspect-ratio: 16 / 9; border: 1px solid var(--color-line); background: var(--color-bg-alt); }
.map-embed iframe { width: 100%; height: 100%; border: 0; display: block; }
.distances { margin-top: 24px; display: flex; flex-direction: column; }
.distances > div { display: flex; gap: 20px; padding: 18px 0; border-top: 1px solid var(--color-line); }
.distances dt { flex: 0 0 120px; font-family: var(--font-heading); font-size: 15px; font-weight: 600; color: var(--color-gold-dark); }
.distances dd { flex: 1; display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: 15px; color: var(--color-ink); }

.jobs { margin-top: 88px; background: var(--color-primary); color: var(--color-on-dark); padding: clamp(36px, 5vw, 64px); }
.jobs__names { margin-top: 22px; display: flex; flex-wrap: wrap; gap: 8px 28px; font-family: var(--font-heading); font-size: clamp(30px, 3.6vw, 46px); font-weight: 400; line-height: 1.1; }
.jobs__names .dot { color: var(--color-gold); }
.jobs p { color: var(--color-on-dark-muted); }
.jobs__item { padding-top: 20px; border-top: 1px solid var(--color-line-on-dark); }
.jobs__item b { font-weight: 600; font-size: 15px; }
.jobs__item p { margin-top: 8px; font-size: 15px; line-height: 1.7; }

/* Metro */
.route { margin-top: 36px; padding: 22px 0; border-top: 1px solid var(--color-line-on-dark); border-bottom: 1px solid var(--color-line-on-dark); font-family: var(--font-heading); font-size: clamp(18px, 2vw, 22px); font-weight: 500; }
.route span { color: var(--color-gold); }
.lines-title { font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--color-gold); font-weight: 600; }
.lines { margin-top: 14px; display: flex; flex-direction: column; gap: 8px; font-family: var(--font-heading); font-size: 19px; font-weight: 300; }

/* Căn hộ */
.big-688 { font-family: var(--font-heading); font-size: clamp(96px, 14vw, 188px); font-weight: 200; line-height: 0.85; letter-spacing: -0.04em; color: var(--color-primary); }
.big-688-note { font-family: var(--font-heading); font-size: clamp(20px, 2.2vw, 28px); font-weight: 500; color: var(--color-primary); line-height: 1.2; padding-bottom: 8px; }
.mix > div { display: flex; justify-content: space-between; align-items: baseline; padding: 16px 0; border-bottom: 1px solid var(--color-line); }
.mix dt { font-size: 15px; color: var(--color-muted); }
.mix dd { font-family: var(--font-heading); font-size: 26px; font-weight: 500; color: var(--color-primary); }

.unit { margin-top: 28px; }
.unit__img { flex: 1 1 560px; min-width: 0; padding: 0; border: none; background: var(--color-bg-alt); cursor: zoom-in; position: relative; overflow: hidden; aspect-ratio: 4 / 3; }
.unit__img img { position: absolute; left: 0; top: -10%; width: 100%; height: 120%; max-width: none; object-fit: cover; }
.unit__badge { position: absolute; left: 16px; bottom: 16px; padding: 6px 10px; background: rgba(78, 26, 20, 0.85); color: var(--color-on-dark); font-size: 12px; }
.unit__info { flex: 1 1 380px; display: flex; flex-direction: column; }
.unit__line { font-size: 12px; letter-spacing: 0.18em; text-transform: uppercase; font-weight: 600; color: var(--color-gold-dark); }
.unit__name { margin-top: 12px; font-family: var(--font-heading); font-size: clamp(30px, 3.4vw, 44px); font-weight: 500; color: var(--color-primary); }
.unit__area { margin-top: 22px; padding: 20px 0; border-top: 1px solid var(--color-line); border-bottom: 1px solid var(--color-line); }
.unit__area-k { font-size: 13px; color: var(--color-muted); }
.unit__area-v { margin-top: 6px; font-family: var(--font-heading); font-size: clamp(28px, 3vw, 38px); font-weight: 400; color: var(--color-primary); }
.unit__area-v small { font-size: 17px; }
.unit__nsa { margin-top: 6px; font-size: 14px; color: var(--color-muted); }
.unit__cta { margin-top: auto; padding-top: 28px; }
@media (max-width: 480px) { .unit__cta .btn { width: 100%; white-space: normal; } }

/* Thư viện nội thất */
.gallery { margin-top: 40px; display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr)); gap: 12px; }
.gallery button { padding: 0; border: none; background: var(--color-bg-image); cursor: zoom-in; aspect-ratio: 4 / 3; overflow: hidden; position: relative; }
.gallery img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s cubic-bezier(.2,.7,.2,1); }
.gallery button:hover img { transform: scale(1.04); }
.gallery--collapsed button.is-extra { display: none; }

/* Tiện ích theo tầng */
.floors { border-top: 1px solid var(--color-line-on-dark); }
.floors button {
  width: 100%; display: flex; align-items: center; gap: 16px; padding: 14px 16px;
  border: none; border-bottom: 1px solid var(--color-line-on-dark-soft);
  background: transparent; color: var(--color-on-dark); text-align: left;
}
.floors button.is-active { background: rgba(211, 152, 104, 0.14); color: var(--color-gold); }
.floors .r { flex: 0 0 64px; font-family: var(--font-heading); font-size: 13px; font-weight: 600; letter-spacing: 0.06em; }
.floors .t { flex: 1; font-size: 15px; font-weight: 500; }
.floor__head { margin-top: 28px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 8px 18px; }
.floor__label { font-family: var(--font-heading); font-size: 14px; font-weight: 600; color: var(--color-gold); letter-spacing: 0.08em; }
.floor__title { font-family: var(--font-heading); font-size: clamp(24px, 2.6vw, 32px); font-weight: 500; }
.floor__desc { margin-top: 12px; font-size: 16px; line-height: 1.7; color: var(--color-on-dark-muted); }

.carousel { margin-top: 28px; display: flex; gap: 14px; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; padding-bottom: 4px; }
.carousel::-webkit-scrollbar, .chips--scroll::-webkit-scrollbar, .tabs-line::-webkit-scrollbar { display: none; }
.carousel button { flex: 0 0 auto; height: clamp(240px, 32vw, 440px); padding: 0; border: none; background: var(--color-primary-hover); cursor: zoom-in; scroll-snap-align: start; }
.carousel img { height: 100%; width: auto; max-width: none; }

/* Thế hệ */
.gens { margin-top: 36px; --min: 240px; --gap: 1px; background: var(--color-line); border: 1px solid var(--color-line); }
.gens > div { background: var(--color-bg); padding: 28px 26px 32px; }
.gens h4 { font-family: var(--font-heading); font-size: 19px; font-weight: 600; color: var(--color-primary); }
.gens ul { margin: 16px 0 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 8px; font-size: 15px; color: var(--color-muted); }

/* Giá */
.price-box { margin-top: 36px; padding: 28px 0; border-top: 1px solid var(--color-line-strong); border-bottom: 1px solid var(--color-line-strong); }
.price-box__k { font-size: 13px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-muted); }
.price-box__v { margin-top: 6px; font-family: var(--font-heading); font-size: clamp(56px, 8vw, 104px); font-weight: 300; line-height: 1; letter-spacing: -0.03em; color: var(--color-primary); }
.price-box__v small { font-size: clamp(16px, 1.6vw, 20px); font-weight: 500; letter-spacing: 0; }
.price-box__note { margin-top: 10px; font-size: 14px; color: var(--color-muted); }
.price-disclaimer { margin-top: 14px; font-size: 13px; font-weight: 600; color: var(--color-gold-dark); }

.compare { margin-top: 88px; background: var(--color-bg); border: 1px solid var(--color-line-mid); padding: clamp(28px, 4vw, 52px); }
.compare__rows { margin-top: 32px; display: flex; flex-direction: column; }
.compare__row { display: flex; align-items: center; gap: 16px; padding: 12px 0; border-top: 1px solid var(--color-line-soft); }
.compare__row--axis { border-top: none; padding: 0 0 8px; font-size: 11.5px; color: var(--color-muted); }
.compare__name { flex: 0 0 clamp(120px, 20vw, 210px); font-size: 14.5px; font-weight: 500; color: var(--color-ink); }
.compare__val { flex: 0 0 clamp(90px, 12vw, 130px); text-align: right; font-size: 14px; font-weight: 500; color: var(--color-ink); }
.compare__track { flex: 1; position: relative; height: 8px; background: var(--color-line-soft); }
.compare__track i { position: absolute; top: 0; bottom: 0; left: var(--l); width: var(--w); min-width: 8px; background: var(--color-primary); }
.compare__axis { flex: 1; display: flex; justify-content: space-between; }
.compare__row.is-hl .compare__name, .compare__row.is-hl .compare__val { font-weight: 700; color: var(--color-gold-dark); }
.compare__row.is-hl i { background: var(--color-gold); }
@media (max-width: 560px) {
  .compare__row { flex-wrap: wrap; gap: 6px 12px; }
  .compare__row--axis { display: none; }
  .compare__name { flex: 1 1 auto; }
  .compare__val { flex: 0 0 auto; }
  .compare__track { flex: 1 1 100%; order: 3; }
}

/* Thanh toán */
.pay-grid { --min: 200px; --gap: 1px; background: rgba(246, 242, 234, 0.16); border: 1px solid rgba(246, 242, 234, 0.16); }
.pay-grid > div { background: var(--color-primary); padding: 32px 28px; }
.pay-grid .k { font-size: 13px; color: var(--color-on-dark-muted); }
.pay-grid .v { margin-top: 10px; font-family: var(--font-heading); font-size: clamp(52px, 5.2vw, 76px); font-weight: 300; line-height: 1; color: var(--color-gold); }
.pay-grid .v small { font-size: 18px; color: var(--color-on-dark); }

/* Booking */
.booking { max-width: var(--container); margin: 0 auto; border: 1px solid var(--color-line-strong); display: flex; flex-wrap: wrap; }
.booking > div { padding: clamp(32px, 5vw, 64px); min-width: 0; }
.booking__left { flex: 1 1 440px; border-right: 1px solid var(--color-line); }
.booking__right { flex: 1 1 400px; }
.booking__v { font-family: var(--font-heading); font-size: clamp(64px, 9vw, 120px); font-weight: 300; line-height: 1; letter-spacing: -0.03em; color: var(--color-primary); }
.booking__v small { font-size: clamp(18px, 2vw, 26px); font-weight: 500; letter-spacing: 0; }
@media (max-width: 900px) { .booking__left { border-right: none; border-bottom: 1px solid var(--color-line); } }

.personas { margin-top: 44px; --min: 220px; --gap: 36px 28px; }
.persona { padding-top: 22px; border-top: 1px solid var(--color-primary); }
.persona h3 { font-family: var(--font-heading); font-size: 20px; font-weight: 600; color: var(--color-primary); }
.persona p { margin-top: 12px; font-size: 15px; line-height: 1.7; color: var(--color-muted); }

/* Chủ đầu tư */
.badge-dark { padding: 6px 10px; background: var(--color-primary); color: var(--color-on-dark); font-size: 12.5px; font-weight: 600; letter-spacing: 0.06em; }
.journey { margin-top: 16px; display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; font-family: var(--font-heading); font-size: 17px; font-weight: 500; color: var(--color-primary); }
.journey .arrow { color: var(--color-gold-dark); }
.partners { margin-top: 40px; --min: 210px; }
.partner { padding-top: 20px; border-top: 1px solid var(--color-line-strong); }
.partner h4 { font-family: var(--font-heading); font-size: 18px; font-weight: 600; color: var(--color-primary); letter-spacing: 0.02em; }
.partner p { margin-top: 10px; font-size: 14.5px; line-height: 1.65; color: var(--color-muted); }
.edge { margin-top: 100px; background: var(--color-bg); border: 1px solid var(--color-line-mid); padding: clamp(32px, 5vw, 64px); }
.edge__word { margin-top: 18px; font-family: var(--font-heading); font-size: clamp(44px, 5.6vw, 76px); font-weight: 300; letter-spacing: 0.04em; line-height: 1; color: var(--color-primary); }

/* Khối chữ lớn trên nền ảnh */
.manifesto { position: relative; overflow: hidden; padding: clamp(100px, 14vw, 200px) var(--gutter); background: var(--color-primary); color: var(--color-on-dark); }
.manifesto > img { position: absolute; left: 0; top: -10%; width: 100%; height: 125%; max-width: none; object-fit: cover; opacity: 0.35; }
.manifesto__shade { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(78,26,20,.75), rgba(78,26,20,.92)); }
.manifesto__inner { position: relative; max-width: 860px; margin: 0 auto; text-align: center; }
.manifesto__inner .eyebrow { justify-content: center; letter-spacing: 0.26em; }
.manifesto__text { margin-top: 28px; font-family: var(--font-heading); font-size: clamp(20px, 2.2vw, 26px); font-weight: 300; line-height: 1.6; color: var(--color-on-dark-soft); text-wrap: balance; }
.manifesto__big { margin-top: 44px; font-family: var(--font-heading); font-size: clamp(34px, 5vw, 68px); font-weight: 400; line-height: 1.08; letter-spacing: -0.02em; }

/* FAQ */
.faq { border-top: 1px solid var(--color-line-strong); }
.faq__item { border-bottom: 1px solid var(--color-line-strong); }
.faq__q { width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 22px 0; background: transparent; border: none; text-align: left; }
.faq__q span:first-child { font-family: var(--font-heading); font-size: clamp(16px, 1.6vw, 19px); font-weight: 500; color: var(--color-primary); }
.faq__icon { flex: none; width: 28px; height: 28px; display: flex; align-items: center; justify-content: center; border: 1px solid var(--color-line-strong); border-radius: 50%; font-size: 17px; color: var(--color-gold-dark); }
.faq__icon::before { content: "+"; }
.faq__q[aria-expanded="true"] .faq__icon::before { content: "−"; }
.faq__a { padding: 0 48px 24px 0; font-size: 15.5px; line-height: 1.75; color: var(--color-muted); white-space: pre-line; }
@media (max-width: 560px) { .faq__a { padding-right: 0; } }

/* ======================================================================
   FORM ĐĂNG KÝ
   ====================================================================== */
.form-card { background: var(--color-bg); color: var(--color-ink); padding: clamp(28px, 4vw, 48px); }
.form-card__title { font-family: var(--font-heading); font-size: 24px; font-weight: 500; color: var(--color-primary); }
.form-grid { margin-top: 24px; display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; }
.field { display: flex; flex-direction: column; gap: 7px; font-size: 13px; font-weight: 600; color: var(--color-ink-soft); }
.field--full { margin-top: 16px; }
.input {
  width: 100%; height: 48px; padding: 0 14px;
  border: 1px solid var(--color-line); border-radius: var(--radius); background: var(--color-white);
  font-size: 16px; font-weight: 400; color: var(--color-ink); outline: none;
}
select.input { padding: 0 12px; }
textarea.input { height: auto; padding: 12px 14px; resize: vertical; }
.input:focus { border-color: var(--color-gold); }
.input.is-invalid { border-color: var(--color-error); }
.needs { display: flex; gap: 6px; }
.needs button { flex: 1; height: 48px; border: 1px solid var(--color-line); background: var(--color-white); color: var(--color-ink); border-radius: var(--radius); font-size: 13.5px; font-weight: 600; }
.needs button.is-active { background: var(--color-primary); color: var(--color-on-dark); border-color: var(--color-primary); }
.form-error { margin-top: 12px; font-size: 13.5px; color: var(--color-error); }
.form-privacy { margin-top: 12px; font-size: 12px; line-height: 1.6; color: var(--color-muted); }
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; } /* bẫy chống spam, khách không nhìn thấy */

.thanks { padding: 40px 0; text-align: center; }
.thanks__icon { margin: 0 auto; width: 56px; height: 56px; border-radius: 50%; border: 1px solid var(--color-gold); display: flex; align-items: center; justify-content: center; color: var(--color-gold-dark); }
.thanks__title { margin-top: 20px; font-family: var(--font-heading); font-size: 24px; font-weight: 500; color: var(--color-primary); }
.thanks p { margin-top: 10px; font-size: 15px; line-height: 1.7; color: var(--color-muted); }

.contact-links { margin-top: 36px; display: flex; flex-wrap: wrap; gap: 12px; }
.contact-links .btn { min-height: 50px; padding: 0 20px; }

/* Cửa sổ nổi (form nhanh) */
.modal { position: fixed; inset: 0; z-index: 90; background: var(--overlay-primary); display: flex; align-items: center; justify-content: center; padding: 20px; }
.modal__box { position: relative; width: 100%; max-width: 520px; max-height: calc(100vh - 40px); max-height: calc(100dvh - 40px); overflow: auto; background: var(--color-bg); padding: clamp(28px, 4vw, 44px); }
.modal__close { position: absolute; top: 14px; right: 14px; width: 38px; height: 38px; border: none; background: transparent; color: var(--color-primary); display: flex; align-items: center; justify-content: center; }
.modal__eyebrow { font-size: 12px; letter-spacing: 0.2em; text-transform: uppercase; font-weight: 600; color: var(--color-gold-dark); }
.modal__title { margin-top: 10px; padding-right: 36px; font-family: var(--font-heading); font-size: clamp(22px, 3vw, 28px); font-weight: 500; line-height: 1.2; color: var(--color-primary); }
.modal .form-grid { grid-template-columns: 1fr; gap: 14px; margin-top: 22px; }
.modal .input { height: 50px; }
.modal textarea.input { height: auto; }
.modal .row-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px; }
.modal .needs button { height: 46px; }

/* Xem ảnh phóng to */
.lightbox { position: fixed; inset: 0; z-index: 95; background: var(--overlay-lightbox); display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 56px 16px 24px; }
.lightbox__img { max-width: min(1400px, 100%); max-height: calc(100vh - 140px); max-height: calc(100dvh - 140px); object-fit: contain; }
.lightbox__cap { margin-top: 16px; display: flex; gap: 18px; align-items: center; color: var(--color-on-dark-soft); font-size: 13.5px; text-align: center; }
.lightbox__count { color: var(--color-on-dark-muted); opacity: .7; }
.lightbox__close { position: absolute; top: 14px; right: 14px; width: 44px; height: 44px; border: none; background: transparent; color: var(--color-on-dark); display: flex; align-items: center; justify-content: center; }
.lightbox__nav { position: absolute; top: 50%; transform: translateY(-50%); width: 48px; height: 48px; border-radius: 50%; border: 1px solid rgba(246,242,234,.3); background: rgba(24,10,8,.5); color: var(--color-on-dark); display: flex; align-items: center; justify-content: center; }
.lightbox__nav--prev { left: 12px; }
.lightbox__nav--next { right: 12px; }

/* ======================================================================
   CHÂN TRANG + NÚT LIÊN HỆ NỔI
   ====================================================================== */
.site-footer { padding: 56px var(--gutter) 40px; background: var(--color-bg-deep); color: var(--color-on-dark-muted); }
.site-footer__top { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 32px; padding-bottom: 32px; border-bottom: 1px solid var(--color-line-on-dark-soft); }
.site-footer .logo { background-image: var(--logo-gradient-light); color: var(--color-gold); }
.site-footer .logo__line { font-size: 15px; }
.site-footer .logo__num { font-size: 44px; margin-top: 3px; }
.site-footer__brand-block { display: flex; flex-direction: column; align-items: flex-start; }
.site-footer__slogan { margin-top: 14px; font-size: 13px; letter-spacing: 0.06em; color: var(--color-gold); }
.site-footer__info { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 20px 48px; font-size: 14px; line-height: 1.7; flex: 0 1 560px; }
.site-footer__info b { display: block; color: var(--color-on-dark); font-weight: 600; }
.site-footer__info a { color: var(--color-on-dark-muted); }
.site-footer__info a:hover { color: var(--color-gold); }
.site-footer__legal { margin-top: 24px; font-size: 12px; line-height: 1.7; max-width: 900px; }
.site-footer__brand { margin-top: 12px; font-size: 12px; }

/* Điện thoại: thanh liên hệ cố định ở đáy màn hình */
.mobile-bar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 70;
  display: flex; gap: 8px; padding: 10px 12px calc(10px + env(safe-area-inset-bottom));
  background: rgba(246, 242, 234, 0.97); border-top: 1px solid var(--color-line);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
}
.mobile-bar a, .mobile-bar button { height: 48px; display: flex; align-items: center; justify-content: center; border-radius: var(--radius); }
.mobile-bar .mb-call { flex: 0 0 52px; border: 1px solid var(--color-primary); color: var(--color-primary); }
.mobile-bar .mb-zalo { flex: 0 0 64px; border: 1px solid var(--color-primary); color: var(--color-primary); font-size: 13px; font-weight: 700; }
.mobile-bar .mb-cta { flex: 1; border: none; background: var(--color-primary); color: var(--color-on-dark); font-size: 14px; font-weight: 600; }
.mobile-bar-space { height: 68px; }

/* Máy tính: nút tròn Zalo + gọi ở góc phải */
.float-contact { position: fixed; right: 24px; bottom: 24px; z-index: 70; display: none; flex-direction: column; gap: 10px; }
.float-contact a { width: 54px; height: 54px; border-radius: 50%; display: flex; align-items: center; justify-content: center; box-shadow: var(--shadow-soft); }
.float-contact .fc-zalo { background: var(--color-bg); border: 1px solid var(--color-line-strong); color: var(--color-primary); font-size: 12.5px; font-weight: 700; }
.float-contact .fc-call { background: var(--color-primary); color: var(--color-gold); }

@media (min-width: 760px) {
  .mobile-bar, .mobile-bar-space { display: none; }
  .float-contact { display: flex; }
}

/* Hiệu ứng hiện dần khi cuộn tới */
.reveal-init { opacity: 0; transform: translateY(28px); transition: opacity 1s cubic-bezier(.2,.7,.2,1), transform 1s cubic-bezier(.2,.7,.2,1); }
.reveal-in { opacity: 1; transform: none; }

/* ======================================================================
   TRANG CHUYỂN HƯỚNG (trang chủ tạm)
   ====================================================================== */
.redirect-page { min-height: 100vh; min-height: 100dvh; display: flex; align-items: center; justify-content: center; padding: 24px; background: var(--color-primary); color: var(--color-on-dark); text-align: center; }
.redirect-page .logo { background-image: var(--logo-gradient-light); color: var(--color-gold); }
.redirect-page .logo__line { font-size: 22px; }
.redirect-page .logo__num { font-size: 72px; margin-top: 4px; }
.redirect-page p { margin-top: 24px; color: var(--color-on-dark-muted); font-size: 15px; }
.redirect-page .btn { margin-top: 20px; }

/* Danh sách tích trên nền tối (khối "Nhận thông tin") */
.section--dark .checklist li { border-bottom-color: var(--color-line-on-dark-soft); color: inherit; }
.checklist--sm li { font-size: 15px; padding: 12px 0; gap: 12px; }
.checklist.grid { display: grid; }
@media (max-width: 699px) { .gallery { grid-template-columns: 1fr 1fr; gap: 8px; } }

/* Màn hình nhỏ: chữ trong nút được phép xuống dòng thay vì tràn ra ngoài */
@media (max-width: 480px) {
  .btn:not(.header-cta) { white-space: normal; text-align: center; padding-top: 10px; padding-bottom: 10px; }
}
@media (max-width: 400px) {
  .logo__line { font-size: 11px; }
  .logo__num { font-size: 30px; }
  .site-header__bar { padding: 0 12px; gap: 8px; }
  .header-actions { gap: 6px; }
  .header-cta { padding: 0 10px; font-size: 12.5px; letter-spacing: 0; }
  .lang-switch { gap: 4px; font-size: 12px; }
  .menu-btn { width: 40px; height: 40px; }
}
@media (max-width: 350px) { .header-actions .lang-switch { display: none; } }