/* ===== Nhà Bình An — shared style ===== */
:root{
  --ngoi:#b5462f;        /* mái ngói đỏ */
  --ngoi-dark:#8f3a26;
  --ngoi-deep:#7a2e1d;
  --vuon:#3f6f4a;        /* xanh vườn */
  --vuon-deep:#2c5236;
  --gold:#c89a3c;
  --cream:#faf6ee;
  --paper:#fffdf8;
  --ink:#2b2622;
  --muted:#6f675e;
  --line:#e8dfce;
  --shadow:0 10px 40px rgba(122,46,29,.12);
  --radius:18px;
}
*{box-sizing:border-box;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(--cream);line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit}
.wrap{max-width:1040px;margin:0 auto;padding:0 20px}
.serif{font-family:'Playfair Display',Georgia,serif}

/* Hero */
.hero{
  position:relative;color:#fff;text-align:center;
  padding:78px 20px 64px;
  background:
    linear-gradient(160deg,rgba(122,46,29,.82),rgba(44,82,54,.86)),
    radial-gradient(circle at 30% 20%,rgba(200,154,60,.35),transparent 60%),
    #7a2e1d;
}
/* sale-page hero with real house photo */
.hero--home{
  padding:96px 20px 96px;
  background:
    linear-gradient(180deg,rgba(43,38,34,.55),rgba(122,46,29,.78) 70%,rgba(44,82,54,.9)),
    url('/photo/facade.jpg') center 38%/cover no-repeat,
    #7a2e1d;
  text-shadow:0 2px 14px rgba(0,0,0,.35);
}
.storynav{position:absolute;top:16px;left:50%;transform:translateX(-50%);z-index:10;
  display:inline-flex;align-items:center;gap:7px;white-space:nowrap;
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.4);backdrop-filter:blur(6px);
  color:#fff;padding:10px 20px;border-radius:999px;font-weight:700;font-size:14px;text-decoration:none;
  box-shadow:0 4px 16px rgba(0,0,0,.25);transition:transform .15s,background .15s}
.storynav:hover{transform:translateX(-50%) translateY(-2px);background:rgba(255,255,255,.26)}
.hero .eyebrow{letter-spacing:.28em;text-transform:uppercase;font-size:12px;font-weight:600;opacity:.9;margin-top:16px}
.hero h1{font-size:clamp(34px,7vw,62px);line-height:1.05;margin:14px 0 10px;font-weight:800}
.hero .sub{font-size:clamp(16px,2.4vw,20px);max-width:640px;margin:0 auto;opacity:.96}
.hero .addr{margin-top:18px;font-size:15px;opacity:.9}
.badge-row{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:26px}
.badge{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.25);
  padding:8px 16px;border-radius:999px;font-size:14px;font-weight:600;backdrop-filter:blur(6px)}

/* Stat strip */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);
  border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);margin-top:-34px;position:relative;z-index:2}
.stat{background:var(--paper);padding:20px 14px;text-align:center}
.stat .n{font-size:clamp(20px,4vw,30px);font-weight:800;color:var(--ngoi);line-height:1}
.stat .l{font-size:12.5px;color:var(--muted);margin-top:6px;font-weight:500}

/* Sections */
section{padding:48px 0}
.kicker{color:var(--gold);font-weight:700;letter-spacing:.18em;text-transform:uppercase;font-size:12.5px}
h2.title{font-size:clamp(26px,4.5vw,40px);font-weight:800;margin:8px 0 8px;line-height:1.12}
.lead{color:var(--muted);font-size:17px;max-width:680px}

.story{background:var(--paper);border-radius:var(--radius);padding:34px;box-shadow:var(--shadow);
  border-left:5px solid var(--ngoi);font-size:18px}
.story em{color:var(--ngoi);font-style:normal;font-weight:700}

/* Feature grid */
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:26px}
.card{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:22px}
.card .ico{font-size:26px}
.card h3{margin:10px 0 4px;font-size:18px}
.card p{color:var(--muted);font-size:15px}

/* Legal box */
.legal{background:linear-gradient(135deg,#2c5236,#3f6f4a);color:#fff;border-radius:var(--radius);
  padding:32px;box-shadow:var(--shadow)}
.legal h2{color:#fff}
.legal .grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:18px}
.legal .li{display:flex;gap:10px;align-items:flex-start;font-size:15.5px}
.legal .li b{color:#ffe7b3}
.legal .chk{color:#ffd479;font-weight:800}

/* who for */
.who{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:24px}
.who .p{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:22px;text-align:center}
.who .p .ico{font-size:30px}
.who .p h3{margin:8px 0 6px;font-size:17px}
.who .p p{color:var(--muted);font-size:14.5px}

/* price + CTA */
.price{background:var(--paper);border:2px dashed var(--ngoi);border-radius:var(--radius);
  padding:34px;text-align:center;box-shadow:var(--shadow)}
.price .big{font-size:clamp(40px,9vw,68px);font-weight:800;color:var(--ngoi);line-height:1}
.price .note{color:var(--muted);margin-top:6px}
.cta{display:inline-flex;align-items:center;gap:10px;background:var(--ngoi);color:#fff;
  text-decoration:none;font-weight:700;font-size:18px;padding:15px 30px;border-radius:999px;
  margin-top:18px;box-shadow:0 8px 24px rgba(181,70,47,.4);transition:transform .15s}
.cta:hover{transform:translateY(-2px)}
.cta.ghost{background:transparent;color:var(--ngoi);border:2px solid var(--ngoi);box-shadow:none}
.cta-row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* gallery */
.gal{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:24px}
.gal .ph{aspect-ratio:4/3;background:repeating-linear-gradient(135deg,#efe7d6,#efe7d6 12px,#f6f0e3 12px,#f6f0e3 24px);
  border-radius:12px;display:flex;align-items:center;justify-content:center;color:#b6a98c;font-size:13px;
  border:1px solid var(--line);text-align:center;padding:10px}
.gal figure{position:relative;margin:0;border-radius:12px;overflow:hidden;border:1px solid var(--line);box-shadow:0 4px 16px rgba(122,46,29,.08)}
.gal figure img{width:100%;aspect-ratio:4/3;object-fit:cover;display:block;transition:transform .4s}
.gal figure:hover img{transform:scale(1.05)}
.gal figcaption{position:absolute;left:0;right:0;bottom:0;padding:18px 12px 9px;color:#fff;font-size:13px;font-weight:600;
  background:linear-gradient(transparent,rgba(0,0,0,.65))}

/* floorplan facts */
.specs{display:grid;grid-template-columns:repeat(2,1fr);gap:0 30px;margin-top:8px}
.specs .r{display:flex;justify-content:space-between;padding:12px 0;border-bottom:1px solid var(--line)}
.specs .r b{font-weight:700}
.specs .r span{color:var(--muted)}

/* footer */
footer{background:#2b2622;color:#d9cdbb;padding:40px 0;text-align:center;font-size:14px}
footer a{color:var(--gold);text-decoration:none}
.sticky-cta{position:fixed;left:0;right:0;bottom:0;z-index:50;display:none;
  background:var(--ngoi);color:#fff;text-align:center;padding:14px;font-weight:700;text-decoration:none;box-shadow:0 -4px 20px rgba(0,0,0,.2)}

/* internal page banner */
.internal{background:#fff3cd;border:1px solid #f0d98a;color:#7a5b00;padding:12px 16px;border-radius:12px;
  font-size:14px;margin:18px 0;text-align:center;font-weight:600}
.act{background:var(--paper);border:1px solid var(--line);border-left:5px solid var(--ngoi);
  border-radius:14px;padding:22px;margin:16px 0;box-shadow:0 4px 18px rgba(122,46,29,.06)}
.act .tag{display:inline-block;background:var(--ngoi);color:#fff;font-weight:700;font-size:13px;
  padding:4px 12px;border-radius:999px;margin-bottom:10px}
.act h3{font-size:20px;margin-bottom:8px}
.quote{background:#fbf6ec;border-radius:10px;padding:14px 16px;margin:10px 0;font-style:italic;color:var(--ngoi-deep);border-left:3px solid var(--gold)}
.act ul{margin:8px 0 0 18px}.act li{margin:5px 0}
table.mini{width:100%;border-collapse:collapse;margin-top:10px;font-size:14.5px}
table.mini td,table.mini th{border:1px solid var(--line);padding:9px 12px;text-align:left}
table.mini th{background:#f3ead8}
.backlink{display:inline-block;margin:24px 0 0;color:var(--ngoi);font-weight:600;text-decoration:none}

@media(max-width:720px){
  .grid,.who,.legal .grid2,.specs{grid-template-columns:1fr}
  .gal{grid-template-columns:repeat(2,1fr)}
  .sticky-cta{display:block}
  body{padding-bottom:56px}
}