/* ===== Bộ nhận diện: xanh navy · trắng ngà · đường kẻ mảnh ===== */
:root {
  --bg: #f2f0eb;          /* trắng ngà */
  --bg-alt: #e9e6df;
  --card: #f8f7f3;
  --ink: #1d2533;         /* chữ chính */
  --muted: #6a6f78;
  --line: #d6d1c6;
  --navy: #1b2436;        /* xanh navy chủ đạo */
  --navy-2: #26324a;
  --accent: #1b2436;
  --accent-dark: #0f1624;
  --soft: #8a7a5c;        /* điểm nhấn champagne, dùng rất ít */
  --serif: "Playfair Display", Georgia, serif;
  --script: "Pinyon Script", cursive;
  --sans: "Be Vietnam Pro", system-ui, sans-serif;
  --wrap: 1200px;
  --panel: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='260' height='260'%3E%3Cg fill='none' stroke='%23ffffff' stroke-opacity='.07'%3E%3Crect x='16' y='16' width='228' height='228'/%3E%3Crect x='30' y='30' width='200' height='200'/%3E%3Crect x='36' y='36' width='188' height='188' stroke-opacity='.04'/%3E%3Cpath d='M16 16l14 14M244 16l-14 14M16 244l14-14M244 244l-14-14'/%3E%3C/g%3E%3C/svg%3E");
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body { background: var(--bg); color: var(--ink); font-family: var(--sans); font-weight: 300; font-size: 15px; line-height: 1.8; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
b, strong { font-weight: 500; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 28px; }
section { padding: 110px 0; }

/* Nhãn nhỏ viết hoa giãn chữ */
.eyebrow { display: inline-flex; align-items: center; gap: 14px; font-size: 11px; font-weight: 400; letter-spacing: .32em; text-transform: uppercase; color: var(--muted); }
.eyebrow.line::before { content: ""; width: 48px; height: 1px; background: currentColor; opacity: .6; }
.en { display: block; font-family: var(--sans); font-size: 11px; font-weight: 400; letter-spacing: .28em; text-transform: uppercase; color: var(--muted); margin-top: 14px; }

h1, h2, h3 { font-family: var(--serif); font-weight: 400; line-height: 1.2; }
h1 { font-size: clamp(34px, 5.2vw, 60px); text-transform: uppercase; letter-spacing: .03em; }
h2 { font-size: clamp(28px, 3.6vw, 42px); text-transform: uppercase; letter-spacing: .04em; }
h3 { font-size: 21px; letter-spacing: .02em; }
em, .italic { font-style: italic; text-transform: none; letter-spacing: 0; color: var(--navy-2); }

.btn { display: inline-flex; align-items: center; gap: 12px; padding: 16px 30px; font-family: var(--sans); font-weight: 400; font-size: 12px; letter-spacing: .22em; text-transform: uppercase; border: 1px solid var(--navy); background: var(--navy); color: #f2f0eb; cursor: pointer; transition: .3s; }
.btn:hover { background: var(--accent-dark); border-color: var(--accent-dark); }
.btn.ghost { background: transparent; color: var(--navy); }
.btn.ghost:hover { background: var(--navy); color: #f2f0eb; }
.btn.light { background: transparent; color: #f2f0eb; border-color: rgba(242,240,235,.5); }
.btn.light:hover { background: #f2f0eb; color: var(--navy); }
.link-arrow { font-size: 11px; letter-spacing: .26em; text-transform: uppercase; border-bottom: 1px solid currentColor; padding-bottom: 4px; }
.link-arrow::after { content: "  →"; }

/* Ảnh giữ chỗ khi chưa có ảnh thật */
.ph { background: var(--navy) var(--panel); position: relative; overflow: hidden; }
.ph.blue { background-color: #2b3850; }
.ph.green { background-color: #3a4152; }
.ph.dark { background-color: #151c2a; }
.ph img { width: 100%; height: 100%; object-fit: cover; position: relative; z-index: 1; }

/* ===== Header ===== */
.header { position: sticky; top: 0; z-index: 50; background: rgba(242,240,235,.94); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 84px; }
.logo { display: flex; flex-direction: column; line-height: 1; }
.logo b { font-family: var(--script); font-weight: 400; font-size: 38px; color: var(--navy); line-height: .9; }
.logo small { font-size: 9px; letter-spacing: .34em; color: var(--muted); text-transform: uppercase; margin-top: 6px; }
.nav { display: flex; gap: clamp(18px, 2.2vw, 34px); font-size: 11px; letter-spacing: .2em; text-transform: uppercase; }
.nav a { padding: 6px 0; border-bottom: 1px solid transparent; transition: .3s; }
.nav a:hover { border-color: var(--navy); }
.header-cta { display: flex; align-items: center; gap: 20px; font-size: 13px; letter-spacing: .06em; }
.header-cta .btn { padding: 12px 20px; font-size: 11px; }
.menu-btn { display: none; background: none; border: 0; width: 40px; height: 40px; cursor: pointer; }
.menu-btn span { display: block; height: 1px; background: var(--ink); margin: 7px 8px; }

/* ===== Hero ===== */
.hero { padding: 90px 0 40px; text-align: center; }
.hero .eyebrow { justify-content: center; }
.hero .eyebrow.line::after { content: ""; width: 48px; height: 1px; background: currentColor; opacity: .6; }
.hero h1 { margin: 26px auto 10px; max-width: 900px; }
.hero p.lead { max-width: 620px; margin: 26px auto 0; color: var(--muted); font-size: 16px; }
.hero .actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; margin: 40px 0 30px; }
.agent-chip { display: inline-flex; align-items: center; gap: 14px; padding: 8px 22px 8px 8px; border: 1px solid var(--line); text-align: left; }
.agent-chip .avatar { width: 40px; height: 40px; border-radius: 50%; }
.agent-chip b { font-size: 13px; display: block; font-weight: 500; }
.agent-chip small { font-size: 12px; color: var(--muted); }

/* ===== Tìm kiếm ===== */
.search { background: var(--card); border: 1px solid var(--line); margin-top: 60px; text-align: left; }
.tabs { display: flex; gap: 34px; padding: 0 28px; border-bottom: 1px solid var(--line); font-size: 11px; letter-spacing: .2em; text-transform: uppercase; }
.tabs button { background: none; border: 0; padding: 18px 0; font: inherit; letter-spacing: inherit; text-transform: inherit; color: var(--muted); cursor: pointer; border-bottom: 1px solid transparent; margin-bottom: -1px; }
.tabs button.active { color: var(--ink); border-color: var(--navy); }
.search form { display: grid; grid-template-columns: 2fr 1fr 1fr auto; gap: 18px; padding: 22px 28px 28px; align-items: end; }
label { font-size: 10px; font-weight: 400; letter-spacing: .24em; text-transform: uppercase; color: var(--muted); display: block; margin-bottom: 8px; }
input, select, textarea { width: 100%; font: inherit; font-size: 14px; padding: 13px 14px; border: 1px solid var(--line); background: #fbfaf7; color: var(--ink); border-radius: 0; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--navy); }
.search .go { width: 52px; height: 50px; background: var(--navy); color: #f2f0eb; border: 0; cursor: pointer; font-size: 18px; }

/* ===== Ảnh lớn + 3 dịch vụ ===== */
.feature-img { height: 560px; margin-top: 60px; display: flex; align-items: flex-end; outline: 1px solid var(--line); outline-offset: 12px; }
.feature-img .bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 60% 30%; z-index: 1; }
.feature-img .tag { position: relative; z-index: 2; margin: 32px; background: rgba(248,247,243,.96); padding: 18px 26px; text-align: left; }
.feature-img .tag small { font-size: 10px; letter-spacing: .28em; color: var(--muted); }
.feature-img .tag b { display: block; font-family: var(--serif); font-size: 24px; font-weight: 400; text-transform: uppercase; letter-spacing: .04em; }
.feature-img .tag span { font-size: 13px; color: var(--muted); }
.services { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 90px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); text-align: center; }
.services article { padding: 46px 34px; border-right: 1px solid var(--line); }
.services article:last-child { border: 0; }
.services .num { font-family: var(--serif); font-size: 15px; letter-spacing: .2em; color: var(--muted); }
.services .num::after { content: ""; display: block; width: 1px; height: 30px; background: var(--line); margin: 14px auto 18px; }
.services h3 { text-transform: uppercase; letter-spacing: .06em; font-size: 18px; }
.services .en { margin: 8px 0 18px; }
.services p { color: var(--muted); margin-bottom: 22px; font-size: 14px; }

/* ===== Người đồng hành ===== */
.about { background: var(--bg-alt); }
.about .wrap { display: grid; grid-template-columns: 1fr 1.1fr; gap: 90px; align-items: center; }
.about .photo { aspect-ratio: 4/5; outline: 1px solid var(--navy); outline-offset: 16px; }
.about h2 { margin: 18px 0 4px; }
.about .role { color: var(--muted); margin-bottom: 28px; }
.about blockquote { font-family: var(--serif); font-style: italic; font-size: 22px; line-height: 1.6; padding: 26px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); margin-bottom: 28px; color: var(--navy-2); }
.areas { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 34px; }
.areas span { font-size: 11px; letter-spacing: .18em; text-transform: uppercase; padding: 8px 16px; border: 1px solid var(--line); }
.about .actions { display: flex; flex-wrap: wrap; gap: 14px; }

/* ===== Tiêu đề khối: căn giữa, đường kẻ dọc ===== */
.sec-head { display: flex; flex-direction: column; align-items: center; text-align: center; margin-bottom: 60px; }
.sec-head::before { content: ""; width: 1px; height: 46px; background: var(--line); margin-bottom: 24px; }
.sec-head h2 { margin-top: 14px; }
.sec-head .link-arrow { margin-top: 26px; }

/* ===== Dự án ===== */
.projects { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.project { position: relative; display: flex; align-items: flex-end; color: #f2f0eb; height: 520px; }
.project .info { position: relative; z-index: 2; padding: 34px; width: 100%; background: linear-gradient(transparent, rgba(15,22,36,.75)); }
.badge { display: inline-block; font-size: 10px; font-weight: 400; letter-spacing: .24em; padding: 6px 12px; border: 1px solid currentColor; text-transform: uppercase; }
.project .badge { color: #f2f0eb; }
.project .info small { display: block; margin: 14px 0 6px; opacity: .85; font-size: 12px; letter-spacing: .14em; text-transform: uppercase; }
.project h3 { font-size: 34px; text-transform: uppercase; letter-spacing: .05em; }

/* ===== Tin đăng ===== */
.listings { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.listing { background: var(--card); border: 1px solid var(--line); transition: .35s; }
.listing:hover { border-color: var(--navy); }
.listing .ph { aspect-ratio: 4/3; }
.listing .ph .badge { position: absolute; top: 16px; left: 16px; z-index: 2; color: #f2f0eb; background: rgba(15,22,36,.45); }
.listing .body { padding: 22px; }
.price { font-family: var(--serif); font-size: 24px; color: var(--navy); line-height: 1.3; }
.listing h4 { font-size: 14px; font-weight: 400; margin: 6px 0 8px; line-height: 1.5; }
.listing .loc { font-size: 12px; color: var(--muted); }
.listing .specs { display: flex; gap: 16px; font-size: 12px; letter-spacing: .06em; color: var(--muted); padding-top: 14px; margin-top: 14px; border-top: 1px solid var(--line); }

/* ===== Ký gửi (nền navy hoạ tiết ô phào) ===== */
.consign { background: var(--navy) var(--panel); color: #f2f0eb; }
.consign .wrap { display: grid; grid-template-columns: 1fr 1.1fr; gap: 90px; align-items: center; }
.consign .eyebrow, .consign .en { color: rgba(242,240,235,.6); }
.consign h2 { margin: 18px 0 0; }
.consign h2 em { color: #c9c2b2; }
.consign p { color: rgba(242,240,235,.72); margin: 26px 0 36px; max-width: 440px; }
.consign .btn { background: #f2f0eb; color: var(--navy); border-color: #f2f0eb; }
.consign .btn:hover { background: transparent; color: #f2f0eb; }
.steps li { list-style: none; display: grid; grid-template-columns: 64px 1fr; padding: 24px 0; border-top: 1px solid rgba(242,240,235,.14); }
.steps li:last-child { border-bottom: 1px solid rgba(242,240,235,.14); }
.steps .n { font-family: var(--serif); font-size: 15px; letter-spacing: .2em; color: rgba(242,240,235,.55); }
.steps b { font-weight: 400; font-size: 15px; letter-spacing: .14em; text-transform: uppercase; }
.steps span { display: block; color: rgba(242,240,235,.65); font-size: 14px; margin-top: 4px; }

/* ===== Liên hệ ===== */
.contact { background: var(--bg-alt); }
.contact .wrap { display: grid; grid-template-columns: 1fr 1.1fr; gap: 90px; align-items: start; }
.contact h2 { margin: 18px 0 34px; font-size: clamp(26px, 2.8vw, 34px); }
.contact .person { display: flex; gap: 16px; align-items: center; margin-bottom: 22px; }
.contact .person .avatar { width: 60px; height: 60px; border-radius: 50%; }
.contact .person b { display: block; }
.contact .person small { color: var(--muted); }
.contact ul { list-style: none; color: var(--muted); }
.contact ul li { padding: 10px 0; border-bottom: 1px solid var(--line); }
.contact ul b { color: var(--ink); font-weight: 400; letter-spacing: .14em; text-transform: uppercase; font-size: 11px; margin-right: 8px; }
.form { background: var(--card); padding: 44px; border: 1px solid var(--line); outline: 1px solid var(--line); outline-offset: -10px; display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form .full { grid-column: 1 / -1; }
.form .hp { position: absolute; left: -9999px; }
.form .btn { width: 100%; justify-content: center; }
.form-msg { grid-column: 1 / -1; font-size: 14px; padding: 14px; border: 1px solid; }
.form-msg.ok { color: #2f4a2a; background: #eef1e8; }
.form-msg.err { color: #7a2b1d; background: #f6ebe7; }

/* ===== Footer ===== */
.footer { background: var(--navy) var(--panel); color: rgba(242,240,235,.65); padding: 80px 0 28px; font-size: 14px; }
.footer .cols { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 50px; margin-bottom: 50px; }
.footer .logo b { color: #f2f0eb; }
.footer .logo small { color: rgba(242,240,235,.55); }
.footer h5 { color: #f2f0eb; font-weight: 400; font-size: 11px; letter-spacing: .26em; text-transform: uppercase; margin-bottom: 18px; }
.footer li { list-style: none; margin-bottom: 10px; }
.footer a:hover { color: #f2f0eb; }
.footer .copy { border-top: 1px solid rgba(242,240,235,.12); padding-top: 24px; font-size: 11px; letter-spacing: .14em; text-transform: uppercase; }

/* ===== Nút Zalo nổi ===== */
.float-call { position: fixed; right: 22px; bottom: 22px; z-index: 60; display: flex; align-items: center; gap: 12px; background: var(--card); padding: 6px 14px 6px 6px; border: 1px solid var(--line); border-radius: 40px; box-shadow: 0 12px 30px rgba(15,22,36,.16); }
.float-call .avatar { width: 46px; height: 46px; border-radius: 50%; position: relative; }
.float-call .avatar::before { content: ""; position: absolute; right: 0; bottom: 2px; width: 10px; height: 10px; background: #3cb043; border: 2px solid #fff; border-radius: 50%; z-index: 2; }
.float-call small { font-size: 11px; color: var(--muted); display: block; line-height: 1.3; }
.float-call b { color: var(--navy); font-size: 15px; font-weight: 500; letter-spacing: .04em; }

/* ===== Hiện dần khi cuộn ===== */
.reveal { opacity: 0; transform: translateY(24px); transition: 1s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ===== Laptop nhỏ: gọn thanh menu ===== */
.nav a, .header-cta { white-space: nowrap; }
@media (max-width: 1280px) {
  .header-cta .phone { display: none; }
}
@media (max-width: 1180px) {
  .nav { display: none; }
  .menu-btn { display: block; }
  .nav.open { display: flex; flex-direction: column; gap: 0; position: absolute; top: 84px; left: 0; right: 0; background: var(--bg); border-bottom: 1px solid var(--line); padding: 8px 28px 18px; }
  .nav.open a { padding: 14px 0; border-bottom: 1px solid var(--line); }
}

/* ===== Máy tính bảng ===== */
@media (max-width: 1024px) {
  .listings { grid-template-columns: repeat(2, 1fr); }
  .about .wrap, .consign .wrap, .contact .wrap { grid-template-columns: 1fr; gap: 60px; }
  .about .photo { max-width: 440px; }
  .footer .cols { grid-template-columns: 1fr 1fr; }
}

/* ===== Điện thoại ===== */
@media (max-width: 680px) {
  section { padding: 72px 0; }
  .wrap { padding: 0 16px; }
  .header .wrap { min-height: 72px; }
  .nav.open { top: 72px; padding: 8px 16px 16px; }
  .logo b { font-size: 32px; }
  .header-cta .btn { display: none; }
  .hero { padding-top: 56px; }
  .search form { grid-template-columns: 1fr; padding: 18px 16px 20px; }
  .search .go { width: 100%; }
  .tabs { gap: 22px; padding: 0 16px; overflow-x: auto; white-space: nowrap; }
  .feature-img { height: 300px; outline-offset: 8px; }
  .feature-img .tag { margin: 16px; padding: 14px 18px; }
  .services { grid-template-columns: 1fr; margin-top: 60px; }
  .services article { border-right: 0; border-bottom: 1px solid var(--line); padding: 36px 8px; }
  .projects { grid-template-columns: 1fr; }
  .project { height: 340px; }
  .project h3 { font-size: 26px; }
  .listings { grid-template-columns: 1fr; }
  .form { grid-template-columns: 1fr; padding: 26px 20px; }
  .footer .cols { grid-template-columns: 1fr; }
  .float-call { padding-right: 12px; }
  .float-call small { display: none; }
}