:root{
  --navy-900:#0c2340;
  --navy-800:#13325b;
  --navy-700:#1c4477;
  --navy-50:#eef3fb;
  --green-700:#15803d;
  --green-600:#16a34a;
  --green-500:#22c55e;
  --green-50:#ecfdf5;
  --ink:#101828;
  --ink-2:#344054;
  --ink-3:#667085;
  --line:#e6e8ec;
  --line-2:#f1f3f6;
  --bg:#ffffff;
  --bg-soft:#f7f8fa;
  --bg-warm:#fbfaf7;
  --warn:#b45309;
  --shadow-sm: 0 1px 2px rgba(16,24,40,.05);
  --shadow-md: 0 4px 12px rgba(16,24,40,.06), 0 1px 2px rgba(16,24,40,.04);
  --shadow-lg: 0 12px 32px rgba(12,35,64,.10), 0 2px 6px rgba(12,35,64,.05);
  --r-sm:8px; --r-md:12px; --r-lg:16px; --r-xl:22px;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Be Vietnam Pro', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  line-height:1.55;
  font-size:16px;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none}
h1,h2,h3,h4{margin:0;line-height:1.2;letter-spacing:-0.01em;color:var(--navy-900);font-weight:700}
p{margin:0;color:var(--ink-2)}

.container{max-width:1180px;margin:0 auto;padding:0 20px}
@media (min-width:900px){ .container{padding:0 32px} }

/* ---------- Top bar ---------- */
.topbar{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,0.92);
  backdrop-filter:saturate(140%) blur(10px);
  -webkit-backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid var(--line);
}
.topbar-row{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--navy-900);text-decoration:none}
.brand img.brand-logo{height:42px;width:auto;display:block}
@media (min-width:720px){ .brand img.brand-logo{height:48px} }
.brand-mark{display:flex;align-items:center;gap:10px}
.brand-mark .pin{
  width:36px;height:36px;border-radius:50% 50% 50% 4px;
  background:var(--green-600);
  display:grid;place-items:center;color:#fff;
  transform:rotate(-45deg);
  box-shadow:0 4px 10px rgba(22,163,74,.25);
}
.brand-mark .pin svg{transform:rotate(45deg)}
.brand-mark .txt{display:flex;flex-direction:column;line-height:1;gap:3px}
.brand-mark .txt .t1{font-weight:800;font-size:16px;letter-spacing:-0.01em;color:var(--navy-900)}
.brand-mark .txt .t1 .acc{color:var(--green-700)}
.brand-mark .txt .t2{font-size:11px;color:var(--ink-3);font-weight:500;letter-spacing:.02em}
@media (min-width:720px){
  .brand-mark .pin{width:40px;height:40px}
  .brand-mark .txt .t1{font-size:18px}
  .brand-mark .txt .t2{font-size:12px}
}

.top-actions{display:flex;align-items:center;gap:10px}
.top-phone{display:none;color:var(--ink-2);font-weight:500;font-size:14px;text-decoration:none;transition:color .15s ease}
.top-phone:hover{color:var(--green-700)}
@media (min-width:720px){ .top-phone{display:flex;align-items:center;gap:8px} }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 20px;border-radius:10px;font-weight:600;font-size:15px;
  transition:transform .08s ease, box-shadow .15s ease, background .15s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--green-600);color:#fff;box-shadow:0 4px 14px rgba(22,163,74,.28)}
.btn-primary:hover{background:var(--green-700)}
.btn-zalo{background:#0068ff;color:#fff;box-shadow:0 4px 14px rgba(0,104,255,.25)}
.btn-zalo:hover{filter:brightness(1.05)}
.btn-outline{background:#fff;color:var(--navy-900);border:1.5px solid var(--line)}
.btn-outline:hover{border-color:var(--navy-700);color:var(--navy-700)}
.btn-ghost{color:var(--navy-800);padding:10px 14px}
.btn-lg{padding:16px 24px;font-size:16px;border-radius:12px}
.btn-block{width:100%}

/* ---------- Hero ---------- */
.hero{
  background:
    radial-gradient(1200px 500px at 90% -10%, rgba(34,197,94,.10), transparent 60%),
    radial-gradient(900px 400px at -10% 10%, rgba(28,68,119,.08), transparent 60%),
    var(--bg);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.hero-grid{
  display:grid;grid-template-columns:1fr;gap:40px;
  padding:48px 0 56px;
  align-items:center;
}
@media (min-width:980px){
  .hero-grid{grid-template-columns:1.05fr .95fr;gap:64px;padding:80px 0 88px}
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 12px;border-radius:999px;
  background:#fff;border:1px solid var(--line);
  color:var(--navy-800);font-weight:600;font-size:13px;
  box-shadow:var(--shadow-sm);
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--green-500);box-shadow:0 0 0 4px rgba(34,197,94,.18)}
h1.hero-title{
  font-size:clamp(30px, 5.2vw, 52px);
  line-height:1.08;
  margin:18px 0 16px;
  letter-spacing:-0.02em;
}
h1.hero-title .accent{color:var(--green-700)}
.hero-sub{font-size:17px;color:var(--ink-2);max-width:560px}
@media (min-width:980px){ .hero-sub{font-size:18px} }
.hero-ctas{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-trust{
  display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:16px;
  color:var(--ink-3);font-size:13.5px;
}
.hero-trust span{display:inline-flex;align-items:center;gap:6px}
.hero-trust span::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--green-500)}

.hero-visual{position:relative}
.hero-card{
  position:relative;border-radius:var(--r-xl);
  background:var(--bg-warm);
  border:1px solid var(--line);
  overflow:hidden;
  aspect-ratio: 4/3.2;
  box-shadow:var(--shadow-lg);
}
.hero-map-iframe{
  position:absolute;inset:0;width:100%;height:100%;display:block;border:0;
}
.hero-overlay-card{
  position:absolute;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);padding:14px 16px;box-shadow:var(--shadow-lg);
  display:flex;align-items:center;gap:12px;
}
.hero-overlay-card.tl{top:18px;left:18px;}
.hero-overlay-card.br{bottom:18px;right:18px;}
.hero-overlay-card .ic{
  width:38px;height:38px;border-radius:10px;display:grid;place-items:center;
  background:var(--green-50);color:var(--green-700);
}
.hero-overlay-card .ic.navy{background:var(--navy-50);color:var(--navy-800)}
.hero-overlay-card .lbl{font-size:12px;color:var(--ink-3);line-height:1}
.hero-overlay-card .val{font-size:14px;font-weight:600;color:var(--navy-900);margin-top:4px;line-height:1.2}

/* ---------- Section frame ---------- */
section{padding:64px 0;border-bottom:1px solid var(--line-2)}
@media (min-width:980px){ section{padding:88px 0} }
.section-head{max-width:760px;margin:0 auto 36px;text-align:center}
.section-head.left{margin:0 0 36px;text-align:left}
.section-head .kicker{
  color:var(--green-700);font-weight:600;font-size:13px;
  text-transform:uppercase;letter-spacing:.08em;margin-bottom:10px;
}
.section-head h2{
  font-size:clamp(26px, 3.4vw, 36px);
  text-wrap:balance;
}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:16.5px}

/* ---------- Pain section ---------- */
.pain{background:var(--bg-soft)}
.pain-grid{
  display:grid;grid-template-columns:1fr;gap:14px;
}
@media (min-width:720px){ .pain-grid{grid-template-columns:repeat(2,1fr)} }
@media (min-width:1100px){ .pain-grid{grid-template-columns:repeat(3,1fr)} }
.pain-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px 20px 22px;display:flex;gap:14px;align-items:flex-start;
}
.pain-card .x{
  flex:0 0 auto;width:34px;height:34px;border-radius:10px;
  display:grid;place-items:center;
  background:#fff1f0;color:#b42318;
}
.pain-card h3{font-size:16px;margin:2px 0 6px;color:var(--navy-900)}
.pain-card p{font-size:14.5px;color:var(--ink-2)}

.pain-bridge{
  margin-top:32px;padding:22px 24px;
  background:linear-gradient(180deg, #ecfdf5 0%, #ffffff 100%);
  border:1.5px solid var(--green-500);
  border-radius:var(--r-lg);
  display:flex;gap:16px;align-items:flex-start;
  box-shadow:0 8px 24px rgba(22,163,74,.12);
  max-width:880px;margin-left:auto;margin-right:auto;
}
.pain-bridge .ic{flex:0 0 auto;width:44px;height:44px;border-radius:12px;background:var(--green-600);color:#fff;display:grid;place-items:center;box-shadow:0 4px 10px rgba(22,163,74,.3)}
.pain-bridge p{color:var(--navy-900);font-weight:500;font-size:16px;line-height:1.55}
.pain-bridge strong{color:var(--green-700);font-weight:700}

/* ---------- Steps ---------- */
.steps{
  display:grid;grid-template-columns:1fr;gap:18px;
}
@media (min-width:900px){ .steps{grid-template-columns:repeat(3,1fr);gap:22px} }
.step{
  position:relative;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 24px 24px;
}
.step-num{
  width:38px;height:38px;border-radius:10px;
  background:var(--navy-900);color:#fff;
  display:grid;place-items:center;font-weight:700;font-size:15px;
  margin-bottom:16px;
  font-family:'JetBrains Mono',ui-monospace,monospace;
}
.step h3{font-size:18px;margin-bottom:8px}
.step p{font-size:14.5px}
.step-arrow{display:none}
@media (min-width:900px){
  .step-arrow{
    display:block;position:absolute;right:-18px;top:46px;width:36px;height:2px;
    background:linear-gradient(90deg,var(--line) 0,var(--line) 100%);
  }
  .step-arrow::after{
    content:"";position:absolute;right:-1px;top:-4px;width:0;height:0;
    border-left:8px solid var(--line);border-top:5px solid transparent;border-bottom:5px solid transparent;
  }
  .step:last-child .step-arrow{display:none}
}

/* ---------- Property types ---------- */
.types-grid{
  display:grid;grid-template-columns:1fr;gap:14px;
}
@media (min-width:720px){ .types-grid{grid-template-columns:repeat(2,1fr)} }
@media (min-width:1100px){ .types-grid{grid-template-columns:repeat(3,1fr)} }
.type-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px;display:flex;gap:16px;align-items:flex-start;
  transition:border-color .15s ease, transform .15s ease, box-shadow .15s ease;
  cursor:default;
}
.type-card:hover{border-color:var(--navy-700);box-shadow:var(--shadow-md);transform:translateY(-1px)}
.type-card .ic{
  flex:0 0 auto;width:46px;height:46px;border-radius:12px;
  background:var(--navy-50);color:var(--navy-800);display:grid;place-items:center;
}
.type-card h3{font-size:16.5px;margin-bottom:6px}
.type-card p{font-size:14px}

/* ---------- Areas ---------- */
.areas{background:var(--bg-soft)}
.area-tags{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;max-width:880px;margin:0 auto}
.area-tag{
  background:#fff;border:1.5px solid #d1fae5;border-radius:999px;
  padding:11px 18px;font-size:15px;color:var(--navy-900);font-weight:600;
  display:inline-flex;align-items:center;gap:9px;
  box-shadow:0 1px 3px rgba(12,35,64,.04);
  transition:all .15s ease;cursor:default;
  text-decoration:none;
}
.area-tag:hover{border-color:var(--green-600);color:var(--green-700);box-shadow:0 4px 12px rgba(22,163,74,.12);transform:translateY(-1px)}
.area-tag .pin{width:7px;height:7px;border-radius:50%;background:var(--green-500);box-shadow:0 0 0 3px rgba(34,197,94,.18)}
.area-note{
  margin:28px auto 0;max-width:680px;text-align:center;color:var(--ink-3);font-size:14.5px;
}

/* ---------- Sample demand ---------- */
.demand-grid{
  display:grid;grid-template-columns:1fr;gap:14px;
}
@media (min-width:720px){ .demand-grid{grid-template-columns:repeat(2,1fr)} }
@media (min-width:1100px){ .demand-grid{grid-template-columns:repeat(3,1fr);gap:16px} }
.demand-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px 22px 24px;
  transition:border-color .15s ease, box-shadow .15s ease, transform .15s ease;
  position:relative;overflow:hidden;
}
.demand-card:hover{border-color:var(--green-600);box-shadow:var(--shadow-md);transform:translateY(-2px)}
.demand-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--green-500);
  opacity:.7;
}
.demand-card .price{
  display:inline-block;font-size:13px;font-weight:700;color:var(--green-700);
  background:var(--green-50);padding:6px 12px;border-radius:999px;
  margin-bottom:14px;letter-spacing:.01em;
}
.demand-card h3{font-size:17px;line-height:1.3;margin-bottom:8px;color:var(--navy-900)}
.demand-card p{font-size:14.5px;color:var(--ink-2);line-height:1.55}
.demand-foot{
  margin-top:28px;padding:14px 18px;
  background:#fffbeb;border:1px solid #fde68a;border-radius:var(--r-md);
  color:#92400e;font-size:14px;text-align:center;
  display:flex;align-items:center;justify-content:center;gap:10px;
  max-width:760px;margin-left:auto;margin-right:auto;
}

/* "For who" section */
.forwho{background:var(--bg-soft)}
.forwho-grid{
  display:grid;grid-template-columns:1fr;gap:12px;max-width:880px;margin:0 auto;
}
@media (min-width:720px){ .forwho-grid{grid-template-columns:1fr 1fr;gap:14px 22px} }
.forwho-item{
  display:flex;gap:14px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:18px 20px;
}
.forwho-item .check{
  flex:0 0 auto;width:32px;height:32px;border-radius:50%;
  background:var(--green-600);color:#fff;
  display:grid;place-items:center;
  box-shadow:0 2px 6px rgba(22,163,74,.25);
}
.forwho-item p{font-size:15px;color:var(--navy-900);font-weight:500;line-height:1.5}
.form-zalo-alt{
  margin-top:14px;text-align:center;font-size:14px;color:var(--ink-3);
  display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap;
}
.zalo-inline{
  display:inline-flex;align-items:center;gap:6px;
  color:#0068ff;font-weight:600;
  padding:6px 10px;border-radius:8px;
  transition:background .15s ease;
}
.zalo-inline:hover{background:#eff6ff;text-decoration:underline}
.form-microcopy{
  margin-top:14px;padding:12px 16px;
  background:#f0f9ff;border:1px solid #bae6fd;border-radius:10px;
  font-size:13.5px;color:#0c4a6e;text-align:center;line-height:1.5;
}

/* ---------- Trust checklist ---------- */
.trust{background:linear-gradient(180deg, var(--bg) 0%, var(--bg-soft) 100%)}
.trust-grid{
  display:grid;grid-template-columns:1fr;gap:14px;max-width:880px;margin:0 auto;
}
@media (min-width:720px){ .trust-grid{grid-template-columns:1fr 1fr;gap:14px 22px} }
.trust-item{
  display:flex;gap:14px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:16px 18px;
}
.trust-item .check{
  flex:0 0 auto;width:30px;height:30px;border-radius:50%;
  background:var(--green-50);color:var(--green-700);
  display:grid;place-items:center;
}
.trust-item p{font-size:15px;color:var(--navy-900);font-weight:500;line-height:1.45}

/* ---------- Form ---------- */
.form-section{
  background: linear-gradient(180deg, #0c2340 0%, #13325b 100%);
  color:#fff;border-bottom:0;
}
.form-section .section-head h2,
.form-section .section-head p{color:#fff}
.form-section .section-head p{color:rgba(255,255,255,.78)}
.form-section .kicker{color:#86efac}
.form-wrap{
  max-width:860px;margin:0 auto;
  background:#fff;border-radius:var(--r-xl);
  padding:28px 22px;
  box-shadow:var(--shadow-lg);
}
@media (min-width:780px){ .form-wrap{padding:36px 36px} }
.form-grid{display:grid;grid-template-columns:1fr;gap:14px}
@media (min-width:720px){ .form-grid{grid-template-columns:1fr 1fr;gap:14px 18px} }
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1/-1}
.field label{font-size:13.5px;font-weight:600;color:var(--navy-900)}
.field label .req{color:#dc2626;margin-left:2px}
.field input, .field select, .field textarea{
  width:100%;padding:12px 14px;border-radius:10px;
  border:1.5px solid var(--line);background:#fff;
  font:inherit;font-size:15px;color:var(--ink);
  transition:border-color .12s ease, box-shadow .12s ease;
}
.field textarea{min-height:88px;resize:vertical}
.field input:focus, .field select:focus, .field textarea:focus{
  outline:none;border-color:var(--green-600);
  box-shadow:0 0 0 4px rgba(22,163,74,.14);
}
.field.error input, .field.error select, .field.error textarea{
  border-color:#dc2626;box-shadow:0 0 0 4px rgba(220,38,38,.10);
}
.field .err{font-size:12.5px;color:#dc2626;display:none}
.field.error .err{display:block}

.form-foot{margin-top:18px;text-align:center;font-size:13px;color:var(--ink-3)}
.form-cta{margin-top:22px}

/* Success state */
.form-success{text-align:center;padding:18px 6px}
.form-success .ok{
  width:64px;height:64px;border-radius:50%;background:var(--green-50);color:var(--green-700);
  display:grid;place-items:center;margin:6px auto 16px;
}
.form-success h3{font-size:22px;margin-bottom:8px}
.form-success p{font-size:15px}
.form-success .next{
  display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:20px;
}

/* ---------- FAQ ---------- */
.faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:10px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;
}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;
  padding:18px 20px;text-align:left;font-weight:600;color:var(--navy-900);
  font-size:15.5px;gap:14px;
}
.faq-q .chev{
  width:28px;height:28px;border-radius:50%;background:var(--bg-soft);
  display:grid;place-items:center;color:var(--navy-800);flex:0 0 auto;
  transition:transform .2s ease, background .15s ease;
}
.faq-item.open .faq-q .chev{transform:rotate(180deg);background:var(--green-50);color:var(--green-700)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease}
.faq-a-inner{padding:0 20px 18px;color:var(--ink-2);font-size:15px;line-height:1.6}
.faq-item.open .faq-a{max-height:320px}

/* ---------- Final CTA ---------- */
.final{
  background:
    radial-gradient(700px 300px at 90% 10%, rgba(34,197,94,.18), transparent 60%),
    linear-gradient(180deg, #0c2340, #13325b);
  color:#fff;text-align:center;border-bottom:0;
  padding:48px 0 56px;
}
@media (min-width:980px){ .final{padding:64px 0 72px} }
.final h2{color:#fff;font-size:clamp(24px,3.2vw,34px);max-width:760px;margin:0 auto 14px;text-wrap:balance;line-height:1.2}
.final p{color:rgba(255,255,255,.78);max-width:580px;margin:0 auto 22px;font-size:15.5px}
.final-ctas{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
@media (max-width:520px){
  .final-ctas{flex-direction:column;align-items:stretch;max-width:340px;margin:0 auto;gap:10px}
  .final-ctas .btn{width:100%}
}

/* ---------- Footer ---------- */
footer{padding:36px 0 96px;background:#0a1c33;color:rgba(255,255,255,.72);font-size:14px}
@media (min-width:720px){ footer{padding:36px 0 40px} }
.foot-row{display:flex;flex-wrap:wrap;gap:18px;justify-content:space-between;align-items:center}
.foot-row .brand,.foot-row .brand-mark .t1{color:#fff}
.foot-row .brand-mark .t2{color:rgba(255,255,255,.6)}
.foot-row .brand img.brand-logo{
  height:44px;width:auto;display:block;
  filter:brightness(0) invert(1);
  opacity:.92;
}
.foot-disclaimer{max-width:780px;margin-top:14px;color:rgba(255,255,255,.6);font-size:13px;line-height:1.6}
.foot-links{display:flex;flex-wrap:wrap;gap:8px 14px;margin-top:18px}
.foot-links a{color:rgba(255,255,255,.78);font-size:13.5px;padding:4px 0;border-bottom:1px solid transparent;transition:color .15s ease, border-color .15s ease}
.foot-links a:hover{color:#fff;border-bottom-color:rgba(255,255,255,.4)}
.foot-links a.current{color:#86efac}

/* ---------- Sticky mobile CTA ---------- */
.mobile-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:#fff;border-top:1px solid var(--line);
  padding:10px 14px calc(10px + env(safe-area-inset-bottom));
  display:flex;gap:10px;
  box-shadow:0 -8px 24px rgba(12,35,64,.10);
}
.mobile-cta .btn{flex:1;padding:13px 12px;font-size:14.5px}
@media (min-width:900px){ .mobile-cta{display:none} }

.top-phone svg{color:var(--green-700)}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}