/* ============================================================
   VINHOMES SAIGON PARK
   Design read: landing dự án BĐS, khách mua thật, ngân sách lớn.
   Trust-first + premium. Navy Vinhomes + vàng đồng, nền giấy ấm.
   Variance 6 / Motion 3 / Density 5.
   Font: Be Vietnam Pro (thiết kế riêng cho dấu tiếng Việt).
   ============================================================ */

:root {
  --navy:        #10233f;
  --navy-soft:   #1c3557;
  --navy-line:   rgba(16, 35, 63, .12);
  --gold:        #8a6a33;
  --gold-btn:    #8f7035;   /* dat WCAG AA voi chu trang: 4.63:1 */
  --gold-soft:   rgba(156, 123, 60, .10);

  --paper:       #f6f4ef;
  --surface:     #fdfcfa;
  --ink:         #1a1d22;
  --ink-muted:   #5f6672;

  --font: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --r: 10px;              /* mot he bo goc duy nhat */
  --r-lg: 16px;

  --wrap: 1180px;
  --pad-y: clamp(64px, 7vw, 108px);

  --shadow: 0 1px 2px rgba(16,35,63,.04), 0 8px 28px rgba(16,35,63,.06);
  --shadow-lg: 0 2px 4px rgba(16,35,63,.06), 0 24px 56px rgba(16,35,63,.10);
  --t: .22s cubic-bezier(.4,0,.2,1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
body {
  font-family: var(--font);
  font-size: 16px;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

h1, h2, h3, h4 { font-weight: 700; line-height: 1.14; letter-spacing: -.022em; }

.container { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 28px; }
.section { padding: var(--pad-y) 0; }
.section--paper  { background: var(--paper); }
.section--white  { background: var(--surface); }
.section--navy   { background: var(--navy); color: #fff; }
.section--navy h2, .section--navy h3 { color: #fff; }

/* ---- Nhan nho (dung tiet che: toi da 3 lan toan trang) ---- */
.eyebrow {
  display: inline-block;
  font-size: 12px; font-weight: 700;
  letter-spacing: .16em; text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 14px;
}
.section--navy .eyebrow { color: #c9a961; }

.h-lead   { font-size: clamp(30px, 3.6vw, 46px); max-width: 26ch; text-wrap: balance; }
.h-lead--wide { max-width: 30ch; }
.h-sub    { font-size: clamp(21px, 2.2vw, 27px); margin-bottom: 18px; }
.lede     { font-size: 17px; color: var(--ink-muted); max-width: 62ch; }
.section--navy .lede { color: rgba(255,255,255,.72); }

/* Dau muc: canh trai, khong can giua (variance 6) */
.head { margin-bottom: 44px; max-width: 860px; }
.head .lede { margin-top: 16px; }

/* ---- Nut ---- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 26px;
  border-radius: var(--r);
  font-weight: 600; font-size: 15px;
  transition: transform var(--t), box-shadow var(--t), background var(--t), color var(--t);
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn--primary { background: var(--gold-btn); color: #fff; }
.btn--primary:hover { background: #765925; transform: translateY(-1px); box-shadow: var(--shadow); }
.btn--ghost { border-color: rgba(255,255,255,.42); color: #fff; }
.btn--ghost:hover { background: rgba(255,255,255,.10); }
.btn--line { border-color: var(--navy-line); color: var(--navy); background: var(--surface); }
.btn--line:hover { border-color: var(--gold); color: var(--gold); }

/* ---- Header ---- */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(246,244,239,.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t), background var(--t);
}
.site-header.is-scrolled { border-color: var(--navy-line); background: rgba(246,244,239,.97); }
.site-header .container { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { font-size: 18px; font-weight: 700; letter-spacing: -.02em; color: var(--navy); }
.nav { display: flex; align-items: center; gap: 26px; }
.nav a { font-size: 14.5px; font-weight: 500; color: var(--ink-muted); transition: color var(--t); }
.nav a:hover { color: var(--navy); }
.header-side { display: flex; align-items: center; gap: 14px; }
.lang-toggle { display: flex; border: 1px solid var(--navy-line); border-radius: 999px; overflow: hidden; font-size: 12px; font-weight: 700; }
.lang-toggle button { padding: 6px 13px; color: var(--ink-muted); transition: background var(--t), color var(--t); }
.lang-toggle button.is-active { background: var(--navy); color: #fff; }
.nav-toggle { display: none; font-size: 22px; color: var(--navy); }

/* ---- Hero: chia doi, khong canh giua ---- */
.hero {
  min-height: 92vh;
  display: flex; align-items: flex-end;
  position: relative;
  padding: 140px 0 64px;
  color: #fff;
  background: linear-gradient(180deg, rgba(11,25,45,.46) 0%, rgba(11,25,45,.18) 38%, rgba(11,25,45,.50) 100%),
              url('../img/pc-cong-vien-100.jpg') center/cover no-repeat, var(--navy);
}
.hero__text {
  max-width: 560px;
  background: rgba(8,18,33,.52);
  backdrop-filter: blur(8px);
  border-radius: var(--r-lg);
  padding: 28px 32px;
}
.hero__grid { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 48px; align-items: end; width: 100%; }
.hero h1 { font-size: clamp(38px, 5.4vw, 68px); color: #fff; max-width: 18ch; text-wrap: balance; margin-bottom: 20px; }
.hero p { font-size: 18px; color: rgba(255,255,255,.80); max-width: 46ch; margin-bottom: 32px; }
.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero__facts {
  display: flex; flex-direction: column; gap: 22px;
  border-left: 1px solid rgba(255,255,255,.22);
  padding-left: 28px;
}
.hero__fact b { display: block; font-size: 30px; font-weight: 700; line-height: 1.1; color: #fff; }
.hero__fact span { font-size: 13px; color: rgba(255,255,255,.62); }

/* ---- Bang du lieu ---- */
.tbl-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; border: 1px solid var(--navy-line); border-radius: var(--r-lg); background: var(--surface); }
.tbl { width: 100%; border-collapse: collapse; font-size: 14.5px; min-width: 620px; }
.tbl th, .tbl td { padding: 14px 18px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--navy-line); }
.tbl thead th { background: var(--navy); color: #fff; font-size: 12.5px; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; border-bottom: none; }
.tbl tbody tr:last-child td { border-bottom: none; }
.tbl tbody tr:hover { background: var(--gold-soft); }
.tbl td strong { color: var(--navy); font-weight: 700; }
.tbl--spec th { width: 210px; background: rgba(16,35,63,.035); font-weight: 600; color: var(--navy); font-size: 14px; }

/* ---- Gia: 1 the noi bat + 2 the phu (khong 3 the giong het nhau) ---- */
.price-lead {
  display: grid; grid-template-columns: 1.35fr 1fr; gap: 0;
  border: 1px solid var(--navy-line); border-radius: var(--r-lg);
  overflow: hidden; background: var(--surface); margin-bottom: 20px;
}
.price-lead__main { padding: 40px 40px 36px; background: var(--navy); color: #fff; }
.price-lead__main .price-type { color: #c9a961; }
.price-lead__main .price-fig { color: #fff; }
.price-lead__side { padding: 34px 36px; display: flex; flex-direction: column; justify-content: center; gap: 26px; }
.price-type { font-size: 12px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--gold); }
.price-name { font-size: 21px; font-weight: 700; margin: 8px 0 16px; }
.price-lead__main .price-name { color: #fff; }
.price-fig { font-size: 40px; font-weight: 700; line-height: 1.05; color: var(--navy); letter-spacing: -.03em; }
.price-note { font-size: 13.5px; color: var(--ink-muted); margin-top: 6px; }
.price-lead__main .price-note { color: rgba(255,255,255,.62); }
.price-spec { font-size: 14px; color: rgba(255,255,255,.78); margin-top: 22px; line-height: 1.9; }
.price-mini { border-top: 1px solid var(--navy-line); padding-top: 22px; }
.price-mini:first-child { border-top: none; padding-top: 0; }
.price-mini .price-fig { font-size: 27px; }
.price-mini .price-spec { color: var(--ink-muted); font-size: 13.5px; margin-top: 8px; line-height: 1.7; }

/* ---- Phan khu: xen ke, khong luoi deu ---- */
.zones { display: flex; flex-direction: column; gap: 2px; border: 1px solid var(--navy-line); border-radius: var(--r-lg); overflow: hidden; }
.zone {
  display: grid; grid-template-columns: 232px minmax(0,1fr);
  gap: 32px; padding: 30px 34px;
  background: var(--surface);
  transition: background var(--t);
}
.zone:hover { background: var(--gold-soft); }
.zone + .zone { border-top: 1px solid var(--navy-line); }
.zone__label h3 { font-size: 19px; margin-bottom: 6px; color: var(--navy); }
.zone__meta { font-size: 13px; color: var(--gold); font-weight: 600; }
.zone__body { font-size: 15px; color: var(--ink-muted); }

/* ---- Tien do: luoi khong deu (1 anh lon + 4 anh nho) ---- */
.prog {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 190px;
  gap: 14px;
}
.prog figure { position: relative; overflow: hidden; border-radius: var(--r); margin: 0; }
.prog figure:first-child { grid-column: span 2; grid-row: span 2; }
.prog figure:nth-child(4) { grid-column: span 2; }
.prog img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s cubic-bezier(.4,0,.2,1); }
.prog figure:hover img { transform: scale(1.045); }
.prog figcaption {
  position: absolute; inset: auto 0 0 0;
  background: linear-gradient(180deg, transparent, rgba(8,18,33,.86));
  color: #fff; font-size: 13.5px; font-weight: 500;
  padding: 34px 16px 14px;
}

/* ---- Moc thoi gian: ngang tren desktop ---- */
.tl { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 2px solid rgba(255,255,255,.16); }
.tl__item { padding: 28px 28px 4px 0; position: relative; }
.tl__item::before { content: ''; position: absolute; top: -6px; left: 0; width: 10px; height: 10px; border-radius: 50%; background: #c9a961; }
.tl__year { font-size: 26px; font-weight: 700; color: #fff; margin-bottom: 10px; }
.tl__item p { font-size: 14.5px; color: rgba(255,255,255,.70); }

/* ---- Chinh sach: so lieu lon ---- */
.stat-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-bottom: 40px; border: 1px solid rgba(255,255,255,.16); border-radius: var(--r-lg); overflow: hidden; }
.stat { padding: 32px 30px; border-right: 1px solid rgba(255,255,255,.16); }
.stat:last-child { border-right: none; }
.stat b { display: block; font-size: 46px; font-weight: 700; line-height: 1; color: #c9a961; letter-spacing: -.03em; }
.stat span { display: block; font-size: 14px; color: rgba(255,255,255,.72); margin-top: 12px; }
.section--navy .tbl-wrap { border-color: rgba(255,255,255,.16); background: rgba(255,255,255,.04); }
.section--navy .tbl { color: rgba(255,255,255,.86); }
.section--navy .tbl th, .section--navy .tbl td { border-bottom-color: rgba(255,255,255,.12); }
.section--navy .tbl thead th { background: rgba(255,255,255,.08); color: #fff; }
.section--navy .tbl tbody tr:hover { background: rgba(255,255,255,.05); }
.section--navy .tbl td strong { color: #c9a961; }

/* ---- Ha tang: danh sach 2 cot, khong phai the ---- */
.infra { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 56px; }
.infra__item { padding: 24px 0; border-top: 1px solid var(--navy-line); }
.infra__item h3 { font-size: 17px; margin-bottom: 8px; color: var(--navy); }
.infra__item p { font-size: 14.5px; color: var(--ink-muted); }

/* ---- Khoang cach tien ich: hang chip ---- */
.near { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 32px; }
.near span {
  font-size: 13.5px; color: var(--ink-muted);
  background: var(--surface); border: 1px solid var(--navy-line);
  padding: 8px 15px; border-radius: 999px;
}
.near b { color: var(--navy); font-weight: 700; }

/* ---- Chu dau tu ---- */
.dev { display: grid; grid-template-columns: 1fr 1.05fr; gap: 56px; align-items: center; }
.dev img { border-radius: var(--r-lg); box-shadow: var(--shadow-lg); }

/* ---- Ghi chu nguon ---- */
.note {
  font-size: 13px; line-height: 1.7; color: var(--ink-muted);
  background: var(--gold-soft);
  border-left: 3px solid var(--gold);
  padding: 14px 18px; border-radius: 0 var(--r) var(--r) 0;
  margin-top: 22px;
}
.section--navy .note { background: rgba(255,255,255,.06); border-left-color: #c9a961; color: rgba(255,255,255,.72); }

/* ---- Lien he ---- */
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.agent {
  background: var(--navy); color: #fff;
  border-radius: var(--r-lg); padding: 30px 32px; margin: 28px 0 26px;
}
.agent__role { font-size: 12px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: #c9a961; }
.agent__name { font-size: 25px; font-weight: 700; margin: 8px 0 20px; color: #fff; }
.agent__actions { display: flex; gap: 12px; flex-wrap: wrap; }
.agent .btn--ghost { border-color: rgba(255,255,255,.40); }

.info { display: flex; gap: 15px; padding: 16px 0; border-top: 1px solid var(--navy-line); }
.info__k { font-size: 12.5px; color: var(--ink-muted); text-transform: uppercase; letter-spacing: .08em; font-weight: 600; min-width: 130px; padding-top: 2px; }
.info__v { font-size: 15px; }

.form { background: var(--surface); border: 1px solid var(--navy-line); border-radius: var(--r-lg); padding: 34px 32px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 7px; color: var(--navy); }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 15px;
  border: 1px solid var(--navy-line); border-radius: var(--r);
  font-family: inherit; font-size: 15px; background: #fff; color: var(--ink);
  transition: border-color var(--t);
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--gold); }
.form .btn { width: 100%; justify-content: center; margin-top: 6px; }

/* ---- Footer ---- */
.site-footer { background: var(--navy); color: rgba(255,255,255,.72); padding: 60px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 2.1fr 1fr 1fr; gap: 48px; margin-bottom: 44px; }
.site-footer h4 { color: #fff; font-size: 16px; margin-bottom: 14px; }
.site-footer p, .site-footer li { font-size: 14px; }
.site-footer ul { display: flex; flex-direction: column; gap: 9px; }
.site-footer a:hover { color: #c9a961; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.14); padding-top: 22px;
  display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap;
  font-size: 12.5px; color: rgba(255,255,255,.52);
}
.footer-bottom p:last-child { max-width: 62ch; text-align: right; }

/* ---- Mobile: gom ve 1 cot ---- */
@media (max-width: 900px) {
  .nav {
    position: fixed; inset: 72px 0 0 0; background: var(--paper);
    flex-direction: column; justify-content: flex-start; align-items: flex-start;
    padding: 32px 28px; gap: 22px;
    transform: translateX(100%); transition: transform var(--t);
  }
  .nav.is-open { transform: translateX(0); }
  .nav a { font-size: 18px; }
  .nav-toggle { display: block; }

  .hero { min-height: auto; padding: 120px 0 56px; }
  .hero__grid { grid-template-columns: 1fr; gap: 36px; }
  .hero__facts { flex-direction: row; flex-wrap: wrap; gap: 26px 40px; border-left: none; border-top: 1px solid rgba(255,255,255,.22); padding: 24px 0 0; }
  .hero__fact b { font-size: 24px; }

  .price-lead { grid-template-columns: 1fr; }
  .price-lead__main { padding: 32px 26px; }
  .price-lead__side { padding: 28px 26px; }
  .zone { grid-template-columns: 1fr; gap: 12px; padding: 26px 24px; }
  .prog { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 150px; }
  .prog figure:first-child { grid-column: span 2; grid-row: span 1; }
  .prog figure:nth-child(4) { grid-column: span 2; }
  .tl { grid-template-columns: 1fr; }
  .tl__item { padding: 24px 0 4px 22px; border-left: 2px solid rgba(255,255,255,.16); }
  .tl__item::before { top: 20px; left: -6px; }
  .tl { border-top: none; }
  .stat-row { grid-template-columns: 1fr; }
  .stat { border-right: none; border-bottom: 1px solid rgba(255,255,255,.16); }
  .stat:last-child { border-bottom: none; }
  .infra { grid-template-columns: 1fr; gap: 0; }
  .dev, .contact { grid-template-columns: 1fr; gap: 32px; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-bottom p:last-child { text-align: left; }
  .info__k { min-width: 108px; }
}

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

/* ============================================================
   CHAT WIDGET
   ============================================================ */
.chat-launcher {
  position: fixed; right: 24px; bottom: 24px;
  width: 58px; height: 58px; border-radius: 50%;
  background: var(--navy); color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-lg); z-index: 200; font-size: 23px;
  transition: transform var(--t);
}
.chat-launcher:hover { transform: scale(1.06); }
.chat-window {
  position: fixed; right: 24px; bottom: 92px;
  width: 372px; max-width: calc(100vw - 32px);
  height: 540px; max-height: calc(100vh - 140px);
  background: var(--surface); border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg);
  display: flex; flex-direction: column; overflow: hidden;
  z-index: 200; opacity: 0; transform: translateY(14px);
  pointer-events: none; transition: opacity var(--t), transform var(--t);
}
.chat-window.is-open { opacity: 1; transform: translateY(0); pointer-events: auto; }
.chat-header { background: var(--navy); color: #fff; padding: 16px 18px; display: flex; align-items: center; justify-content: space-between; }
.chat-header-title { font-weight: 700; font-size: 15px; }
.chat-header-sub { font-size: 11.5px; color: rgba(255,255,255,.62); margin-top: 2px; }
.chat-close { color: #fff; font-size: 20px; line-height: 1; }
.chat-body { flex: 1; overflow-y: auto; padding: 16px; display: flex; flex-direction: column; gap: 10px; background: var(--paper); }
.chat-msg { max-width: 86%; padding: 10px 14px; border-radius: var(--r); font-size: 14px; line-height: 1.6; white-space: pre-wrap; word-break: break-word; }
.chat-msg--bot { align-self: flex-start; background: #fff; border: 1px solid var(--navy-line); border-bottom-left-radius: 4px; }
.chat-msg--user { align-self: flex-end; background: var(--navy); color: #fff; border-bottom-right-radius: 4px; }
.chat-typing span { width: 6px; height: 6px; border-radius: 50%; background: #9aa1ad; display: inline-block; margin-right: 3px; animation: chatDot 1s infinite ease-in-out; }
.chat-typing span:nth-child(2) { animation-delay: .15s; }
.chat-typing span:nth-child(3) { animation-delay: .3s; }
@keyframes chatDot { 0%, 60%, 100% { opacity: .3; } 30% { opacity: 1; } }
.chat-quick-replies { display: flex; flex-wrap: wrap; gap: 7px; padding: 0 16px 12px; background: var(--paper); }
.chat-quick-replies button {
  font-size: 12.5px; border: 1px solid var(--navy-line); border-radius: 999px;
  padding: 7px 13px; background: #fff; color: var(--ink); transition: border-color var(--t), color var(--t);
}
.chat-quick-replies button:hover { border-color: var(--gold); color: var(--gold); }
.chat-input-row { display: flex; align-items: center; gap: 9px; padding: 12px; border-top: 1px solid var(--navy-line); background: var(--surface); }
.chat-input-row input { flex: 1; border: 1px solid var(--navy-line); border-radius: 999px; padding: 10px 16px; font-size: 14px; font-family: inherit; outline: none; }
.chat-input-row input:focus { border-color: var(--gold); }
.chat-send { width: 36px; height: 36px; border-radius: 50%; background: var(--gold-btn); color: #fff; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.chat-send:disabled { opacity: .5; cursor: not-allowed; }

/* ---- Hang so lieu chinh chu ---- */
.figs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--navy-line); border: 1px solid var(--navy-line); border-radius: var(--r-lg); overflow: hidden; }
.fig { background: var(--surface); padding: 26px 22px; }
.fig b { display: block; font-size: 34px; font-weight: 700; line-height: 1; color: var(--navy); letter-spacing: -.03em; }
.fig span { display: block; font-size: 13px; color: var(--ink-muted); margin-top: 9px; }
@media (max-width: 900px) { .figs { grid-template-columns: repeat(2, 1fr); } .fig b { font-size: 27px; } }

/* ---- Video tien do ---- */
.vid { margin-bottom: 36px; }
.vid video { width: 100%; border-radius: var(--r-lg); box-shadow: var(--shadow-lg); display: block; background: var(--navy); }
.vid__cap { font-size: 13.5px; color: var(--ink-muted); margin-top: 12px; }

/* ============================================================
   V7 - Trust-first redesign
   ============================================================ */

/* ---- Hero: nhan anh hien truong ---- */
.hero__imgtag {
  position: absolute; left: 28px; bottom: 20px;
  font-size: 12px; color: rgba(255,255,255,.66);
  background: rgba(8,18,33,.55); backdrop-filter: blur(6px);
  padding: 6px 12px; border-radius: 999px;
  letter-spacing: .02em;
}

/* ---- Verify card trong hero ---- */
.verify {
  background: rgba(8,18,33,.62); backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: var(--r-lg);
  padding: 24px 26px; min-width: 300px; max-width: 340px;
}
.verify__badge {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 11.5px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  color: #c9a961; margin-bottom: 16px;
}
.verify__badge::before { content: '✓'; width: 17px; height: 17px; border-radius: 50%; border: 1.5px solid #c9a961; display: inline-flex; align-items: center; justify-content: center; font-size: 10px; }
.verify__row { display: flex; justify-content: space-between; gap: 14px; padding: 9px 0; border-top: 1px solid rgba(255,255,255,.12); font-size: 13.5px; }
.verify__row:first-of-type { border-top: none; padding-top: 0; }
.verify__k { color: rgba(255,255,255,.60); flex-shrink: 0; }
.verify__v { color: #fff; text-align: right; font-weight: 600; }
.verify__date { font-size: 11.5px; color: rgba(255,255,255,.48); margin-top: 12px; }

/* ---- Trust Center: tu ho so phap ly ---- */
.docs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.doc {
  background: var(--surface); border: 1px solid var(--navy-line);
  border-radius: var(--r-lg); padding: 22px;
  display: flex; flex-direction: column; gap: 10px;
  transition: box-shadow var(--t), transform var(--t);
}
.doc:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.doc__ico { width: 34px; height: 40px; border: 1.5px solid var(--navy); border-radius: 4px; position: relative; margin-bottom: 4px; }
.doc__ico::before { content: ''; position: absolute; top: 8px; left: 6px; right: 6px; height: 2px; background: var(--navy); box-shadow: 0 6px 0 var(--navy), 0 12px 0 var(--navy); opacity: .55; }
.doc__name { font-size: 14.5px; font-weight: 700; color: var(--navy); line-height: 1.4; }
.doc__meta { font-size: 12.5px; color: var(--ink-muted); line-height: 1.7; }
.doc__meta b { color: var(--ink); font-weight: 600; }
.doc__foot { margin-top: auto; display: flex; align-items: center; justify-content: space-between; gap: 10px; padding-top: 12px; border-top: 1px dashed var(--navy-line); }
.st { display: inline-flex; align-items: center; gap: 6px; font-size: 11.5px; font-weight: 600; padding: 4px 10px; border-radius: 999px; }
.st--ok { color: #1d6b40; background: rgba(29,107,64,.09); }
.st--ok::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: #2e8b57; }
.st--wait { color: #8a6a33; background: var(--gold-soft); }
.st--wait::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: #b08d3f; }
.doc__link { font-size: 13px; font-weight: 600; color: var(--navy); white-space: nowrap; }
.doc__link:hover { color: var(--gold); }
.doc__link--off { color: var(--ink-muted); pointer-events: none; opacity: .55; }

/* ---- Product cards ---- */
.prods { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 26px; }
.prod {
  background: var(--surface); border: 1px solid var(--navy-line);
  border-radius: var(--r-lg); padding: 24px 22px;
  display: flex; flex-direction: column; gap: 0;
}
.prod--lead { border-color: var(--gold); box-shadow: var(--shadow); }
.prod__type { font-size: 11.5px; font-weight: 700; letter-spacing: .13em; text-transform: uppercase; color: var(--gold); }
.prod__price { font-size: 28px; font-weight: 700; color: var(--navy); letter-spacing: -.02em; margin: 10px 0 2px; }
.prod__unit { font-size: 12.5px; color: var(--ink-muted); margin-bottom: 14px; }
.prod__specs { font-size: 13.5px; color: var(--ink-muted); line-height: 1.8; border-top: 1px solid var(--navy-line); padding-top: 12px; }
.prod__specs b { color: var(--ink); font-weight: 600; }
.prod__date { font-size: 11.5px; color: var(--ink-muted); margin: 12px 0; }
.prod .btn { margin-top: auto; justify-content: center; font-size: 13.5px; padding: 11px 16px; }

/* ---- Accordion bang gia chi tiet ---- */
.acc { border: 1px solid var(--navy-line); border-radius: var(--r-lg); background: var(--surface); margin-bottom: 14px; overflow: hidden; }
.acc summary {
  cursor: pointer; list-style: none; padding: 18px 22px;
  font-weight: 700; font-size: 15px; color: var(--navy);
  display: flex; align-items: center; justify-content: space-between;
}
.acc summary::-webkit-details-marker { display: none; }
.acc summary::after { content: '+'; font-size: 20px; color: var(--gold); font-weight: 400; }
.acc[open] summary::after { content: '−'; }
.acc__body { padding: 0 22px 22px; }
.acc .tbl-wrap { border: none; border-top: 1px solid var(--navy-line); border-radius: 0; }

/* ---- Calculator ---- */
.calc { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.calc__form { background: var(--surface); border: 1px solid var(--navy-line); border-radius: var(--r-lg); padding: 28px 26px; }
.calc__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 14px; }
.calc__grid .field--full { grid-column: 1 / -1; }
.calc__out { background: var(--navy); color: #fff; border-radius: var(--r-lg); padding: 30px 28px; position: sticky; top: 96px; }
.calc__out h3 { color: #fff; font-size: 18px; margin-bottom: 18px; }
.calc__row { display: flex; justify-content: space-between; gap: 16px; padding: 10px 0; border-top: 1px solid rgba(255,255,255,.13); font-size: 14px; }
.calc__row:first-of-type { border-top: none; }
.calc__row span { color: rgba(255,255,255,.66); }
.calc__row b { color: #fff; font-weight: 700; text-align: right; }
.calc__row--hero b { font-size: 24px; color: #c9a961; }
.calc__assump { font-size: 12px; color: rgba(255,255,255,.55); line-height: 1.7; margin-top: 16px; padding-top: 14px; border-top: 1px dashed rgba(255,255,255,.2); }
.calc .note { grid-column: 1 / -1; }

/* ---- Chat online badge ---- */
.chat-header-sub {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 11px; color: #86e0a5; margin-top: 4px;
  background: rgba(46,139,87,.18); border: 1px solid rgba(134,224,165,.28);
  padding: 3px 9px; border-radius: 999px; font-weight: 600;
}

@media (max-width: 900px) {
  .hero__imgtag { left: 16px; bottom: 14px; font-size: 11px; }
  .verify { max-width: none; width: 100%; }
  .docs { grid-template-columns: 1fr; }
  .prods { grid-template-columns: 1fr 1fr; }
  .calc { grid-template-columns: 1fr; }
  .calc__out { position: static; }
  .calc__grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .prods { grid-template-columns: 1fr; }
}

/* ---- Phoi canh minh hoa (renders) ---- */
.pcs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.pcs figure, .mau figure {
  position: relative; overflow: hidden; border-radius: var(--r); margin: 0;
  background: var(--navy);
}
.pcs img, .mau img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .5s cubic-bezier(.4,0,.2,1); }
.pcs figure:hover img, .mau figure:hover img { transform: scale(1.04); }
.pcs figcaption, .mau figcaption {
  position: absolute; inset: auto 0 0 0;
  background: linear-gradient(180deg, transparent, rgba(8,18,33,.88));
  color: #fff; font-size: 13px; font-weight: 500;
  padding: 32px 14px 12px;
}
.render-tag {
  position: absolute; top: 10px; left: 10px; z-index: 1;
  font-size: 10.5px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase;
  color: #fff; background: rgba(8,18,33,.68); backdrop-filter: blur(4px);
  padding: 4px 9px; border-radius: 999px;
}
.mau {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 18px;
}

@media (max-width: 900px) {
  .pcs { grid-template-columns: repeat(2, 1fr); }
  .mau { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .pcs { grid-template-columns: 1fr; }
  .mau { grid-template-columns: 1fr; }
}