/* ============================================================
   BÌNH AN — Điêu Khắc Tạo Hình
   Giao diện mới — phong cách "editorial gallery"
   Serif display (Playfair Display) + sans Việt hoá (Be Vietnam Pro)
   ============================================================ */
:root{
  --ink:#18140f;
  --ink-soft:#2a241c;
  --paper:#f4eee1;
  --paper-2:#eae1cd;
  --clay:#a8532e;
  --clay-dark:#7c3b1f;
  --gold:#b8892b;
  --gold-light:#e2c069;
  --stone:#6b5d4a;
  --text:#241f19;
  --text-light:#6d6252;
  --white:#ffffff;
  --line:rgba(24,20,15,.14);
  --line-light:rgba(255,255,255,.22);
  --shadow:0 18px 50px rgba(24,20,15,.14);
  --maxw:1220px;
  --serif:'Roboto', -apple-system, Segoe UI, Arial, sans-serif;
  --sans:'Roboto', -apple-system, Segoe UI, Arial, sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--sans);
  font-size:15.5px;
  color:var(--text);
  background:var(--paper);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{
  font-family:var(--serif);
  color:var(--ink);
  line-height:1.22;
  font-weight:700;
  letter-spacing:normal;
}
h1 em, h2 em, h3 em{font-style:normal;color:var(--clay);font-weight:700}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
ul{list-style:none}
.container{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.section{padding:68px 0}
.section-tight{padding:48px 0}
.section-alt{background:var(--paper-2)}
.section-dark{background:var(--ink);color:#d9d0bd}
.section-dark h2,.section-dark h3,.section-dark h4{color:#fff}

/* Eyebrow / numbered labels */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--sans);font-size:12.5px;font-weight:600;
  letter-spacing:.22em;text-transform:uppercase;color:var(--clay);
  margin-bottom:10px;
}
.eyebrow::before{content:"";width:28px;height:1px;background:var(--clay)}
.section-dark .eyebrow{color:var(--gold-light)}
.section-dark .eyebrow::before{background:var(--gold-light)}
.section-head{max-width:640px;margin:0 auto 36px;text-align:center}
.section-head.left{margin:0 0 32px;text-align:left}
.section-head h2{font-size:clamp(26px,3.6vw,38px);margin-bottom:12px}
.section-head p{color:var(--text-light);font-size:16px;line-height:1.65}
.section-dark .section-head p{color:#bdb29c}

/* Buttons — sharp, editorial */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:15px 30px;
  font-family:var(--sans);font-weight:600;font-size:13.5px;
  letter-spacing:.05em;text-transform:uppercase;
  border:1px solid transparent;
  cursor:pointer;transition:all .3s ease;white-space:nowrap;
}
.btn-primary{background:var(--clay);color:#fff;border-color:var(--clay)}
.btn-primary:hover{background:var(--clay-dark);border-color:var(--clay-dark)}
.btn-outline{border-color:var(--ink);color:var(--ink)}
.btn-outline:hover{background:var(--ink);color:#fff}
.btn-light{background:#fff;color:var(--ink);border-color:#fff}
.btn-light:hover{background:transparent;color:#fff}
.btn-line-light{border-color:var(--line-light);color:#fff}
.btn-line-light:hover{background:#fff;color:var(--ink)}
.btn-sm{padding:11px 20px;font-size:12px}
.btn svg{width:15px;height:15px}

/* Header */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  padding:22px 0;transition:all .35s ease;
}
.site-header.is-solid{
  background:rgba(244,238,225,.96);backdrop-filter:blur(10px);
  padding:14px 0;border-bottom:1px solid var(--line);
}
.header-inner{
  max-width:var(--maxw);margin:0 auto;padding:0 28px;
  display:flex;align-items:center;justify-content:space-between;
}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{
  width:42px;height:42px;border-radius:50%;
  border:1.5px solid currentColor;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--serif);font-weight:700;font-size:17px;
  flex-shrink:0;color:inherit;
}
.brand-text .name{font-family:var(--serif);font-weight:700;font-size:19px;color:inherit;letter-spacing:.01em}
.brand-text .sub{font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--clay);opacity:.9}
.site-header{color:#fff}
.site-header.is-solid{color:var(--ink)}
.site-header.is-solid .brand-text .sub{color:var(--clay)}

nav.main-nav{display:flex;align-items:center;gap:34px}
nav.main-nav a{
  font-size:13px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;
  position:relative;padding:6px 0;color:inherit;opacity:.85;
}
nav.main-nav a.active,nav.main-nav a:hover{opacity:1}
nav.main-nav a.active::after{
  content:"";position:absolute;left:0;bottom:0;width:100%;height:1px;background:var(--clay);
}
.header-cta{display:flex;align-items:center;gap:16px}
.header-phone{display:flex;align-items:center;gap:8px;font-weight:600;font-size:13.5px;color:inherit}
.header-phone svg{width:16px;height:16px;color:var(--clay)}
.menu-toggle{display:none;background:none;border:none;font-size:24px;cursor:pointer;color:inherit}

/* ============ HERO — full bleed editorial ============ */
.hero{
  position:relative;min-height:100vh;display:flex;align-items:flex-end;
  color:#fff;overflow:hidden;
}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(24,20,15,.35) 0%, rgba(24,20,15,.35) 40%, rgba(24,20,15,.92) 100%),
             linear-gradient(90deg, rgba(24,20,15,.55), rgba(24,20,15,.05) 55%);
}
.hero-inner{position:relative;z-index:1;width:100%;padding:180px 0 72px}
.partner-badge{
  display:inline-flex;align-items:center;gap:10px;
  border:1px solid var(--line-light);
  padding:10px 18px;font-size:12.5px;font-weight:600;letter-spacing:.03em;
  color:#f2ead9;margin-bottom:28px;
}
.partner-badge strong{color:var(--gold-light);font-weight:700}
.hero h1{font-size:clamp(38px,6.4vw,74px);max-width:920px;margin-bottom:22px;color:#fff}
.hero p.lead{font-size:16px;line-height:1.65;color:#e3dbc9;max-width:520px;margin-bottom:40px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:56px}
.hero-stats{display:flex;gap:0;flex-wrap:wrap;border-top:1px solid var(--line-light);padding-top:28px}
.hero-stats div{padding:0 40px 0 0;margin-right:40px;border-right:1px solid var(--line-light)}
.hero-stats div:last-child{border-right:none}
.hero-stats strong{display:block;font-family:var(--serif);font-size:36px;color:#fff;font-weight:700}
.hero-stats span{font-size:12.5px;color:#c7bda6;letter-spacing:.03em}

/* ============ Numbered editorial rows ============ */
.feature-row{
  display:grid;grid-template-columns:.9fr 1.1fr;gap:64px;align-items:center;
  padding:56px 0;border-top:1px solid var(--line);
}
.feature-row:last-child{border-bottom:1px solid var(--line)}
.feature-row.reverse{grid-template-columns:1.1fr .9fr}
.feature-row.reverse .feature-media{order:2}
.feature-num{
  font-family:var(--serif);font-size:15px;color:var(--clay);font-weight:700;
  letter-spacing:.1em;margin-bottom:14px;display:block;
}
.feature-text h3{font-size:clamp(22px,3vw,30px);margin-bottom:14px}
.feature-text p{color:var(--text-light);font-size:15.5px;max-width:480px}
.feature-media{aspect-ratio:4/3;overflow:hidden}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.feature-media:hover img{transform:scale(1.05)}

/* Simple 3-col value grid (no cards/shadows — divider lines) */
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line);border-left:1px solid var(--line)}
.value-item{padding:26px 26px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.value-item .tag-label{font-size:11.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--clay);margin-bottom:14px;display:block}
.value-item h3{font-size:19px;margin-bottom:10px}
.value-item p{color:var(--text-light);font-size:14.5px}

/* ============ Product gallery — even, predictable grid ============ */
/* Featured row: 2 items, equal height, no auto-placement gaps */
.mosaic-feature{display:grid;grid-template-columns:2fr 1fr;gap:14px;margin-bottom:14px}
.mosaic-feature .m-item{position:relative;overflow:hidden;display:block;height:440px}
.mosaic-feature .m-item img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .55s ease}
.mosaic-feature .m-item:hover img{transform:scale(1.06)}
.mosaic-feature .m-item::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(24,20,15,.82),rgba(24,20,15,0) 55%)}
.mosaic-feature .m-cap{position:absolute;left:0;right:0;bottom:0;padding:18px 20px;color:#fff;z-index:2}
.mosaic-feature .m-cap h4{color:#fff;font-size:17px;font-family:var(--serif);font-weight:700}
.mosaic-feature .m-cap span{font-size:12px;color:#d8cdb5;letter-spacing:.04em}

/* Grid row: uniform square tiles, always even (3 columns) */
.mosaic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.mosaic-grid .m-item{position:relative;overflow:hidden;display:block;aspect-ratio:1/1}
.mosaic-grid .m-item img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .55s ease}
.mosaic-grid .m-item:hover img{transform:scale(1.07)}
.mosaic-grid .m-item::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(24,20,15,.8),rgba(24,20,15,0) 50%)}
.mosaic-grid .m-cap{position:absolute;left:0;right:0;bottom:0;padding:16px 18px;color:#fff;z-index:2}
.mosaic-grid .m-cap h4{color:#fff;font-size:15px;font-family:var(--serif);font-weight:700}
.mosaic-grid .m-cap span{font-size:11px;color:#d8cdb5;letter-spacing:.04em}

/* Catalog list (products page) */
.cat-block{border-top:1px solid var(--line);padding:64px 0}
.cat-block:last-child{border-bottom:1px solid var(--line)}
.cat-block-head{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:36px;flex-wrap:wrap}
.cat-block-head .grp-num{font-family:var(--serif);font-size:14px;color:var(--clay);letter-spacing:.1em;margin-bottom:10px;display:block}
.cat-block-head h2{font-size:clamp(24px,3.4vw,32px)}
.cat-block-head p{color:var(--text-light);font-size:15px;max-width:420px}
.prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:2px;background:var(--line)}
.prod-item{background:var(--paper);display:flex;flex-direction:column}
.prod-photo{aspect-ratio:1/1;overflow:hidden;background:var(--paper-2);position:relative}
.prod-photo img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .5s ease}
.prod-item:hover .prod-photo img{transform:scale(1.06)}
.prod-photo.empty{display:flex;align-items:center;justify-content:center}
.prod-photo.empty span{font-size:11.5px;color:var(--text-light);letter-spacing:.03em}
.prod-info{padding:18px 4px 6px}
.prod-info h3{font-size:15.5px;margin-bottom:4px;font-family:var(--serif)}
.prod-info p{font-size:12.5px;color:var(--text-light)}
@media (max-width:960px){.prod-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:520px){.prod-grid{grid-template-columns:1fr}}

/* Policy split */
.policy-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0;border-top:1px solid var(--line-light);border-left:1px solid var(--line-light)}
.section-dark .policy-grid{border-color:var(--line-light)}
.policy-card{padding:44px;border-right:1px solid var(--line-light);border-bottom:1px solid var(--line-light)}
.policy-card .num{font-family:var(--serif);font-size:15px;color:var(--gold-light);letter-spacing:.1em;margin-bottom:16px;display:block}
.policy-card h3{margin-bottom:12px;font-size:21px}
.policy-card p{color:#bdb29c;font-size:15px}

/* Timeline */
.timeline{display:flex;flex-direction:column}
.timeline-item{
  display:grid;grid-template-columns:90px 1fr;gap:24px;
  padding:26px 0;border-top:1px solid var(--line);
}
.timeline-item:last-child{border-bottom:1px solid var(--line)}
.timeline-item .step{font-family:var(--serif);font-size:15px;color:var(--clay);font-weight:700}
.timeline-item h4{font-size:16.5px;margin-bottom:6px;color:var(--ink)}
.timeline-item p{font-size:14.5px;color:var(--text-light)}

/* Client type chips */
.chip-wrap{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  border:1px solid var(--line);
  padding:10px 18px;font-size:13.5px;color:var(--text);letter-spacing:.02em;
}

/* Quote block */
.quote-block{position:relative;max-width:740px;margin:0 auto;text-align:center;padding:0 20px}
.quote-mark{font-family:var(--serif);font-size:44px;color:var(--gold-light);line-height:1;margin-bottom:2px;opacity:.7}
.quote-block p{font-size:clamp(16px,1.8vw,19px);font-family:var(--serif);font-style:normal;font-weight:500;line-height:1.6;color:#fff}
.quote-block cite{display:block;margin-top:14px;font-style:normal;font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--gold-light)}

/* CTA split band */
.cta-split{display:grid;grid-template-columns:1fr 1fr;min-height:280px}
.cta-split .half{padding:56px;display:flex;flex-direction:column;justify-content:center}
.cta-split .half.dark{background:var(--ink);color:#fff}
.cta-split .half.clay{background:var(--clay);color:#fff}
.fb-page-embed{background:#fff;border-radius:8px;overflow:hidden;max-width:340px;box-shadow:var(--shadow)}
.fb-page-embed iframe{display:block;width:100%}
.fb-page-embed-large{background:#fff;border-radius:10px;overflow:hidden;max-width:500px;margin:0 auto;box-shadow:var(--shadow)}
.fb-page-embed-large iframe{display:block;width:100%}
@media (max-width:560px){.fb-page-embed-large{max-width:100%}}
.cta-split h3{color:#fff;font-size:clamp(22px,3vw,28px);margin-bottom:14px}
.cta-split p{color:rgba(255,255,255,.78);margin-bottom:26px;font-size:15px}
@media (max-width:820px){.cta-split{grid-template-columns:1fr}}

/* Contact page */
.contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:0;border-top:1px solid var(--line);border-left:1px solid var(--line)}
.contact-col{border-right:1px solid var(--line)}
.contact-item{padding:30px 34px;border-bottom:1px solid var(--line)}
.contact-item h4{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--clay);margin-bottom:10px;font-family:var(--sans);font-weight:700}
.contact-item p,.contact-item a{font-size:16px;color:var(--text)}
.contact-item a:hover{color:var(--clay)}
.form-col{padding:44px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:20px}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:20px}
.field label{font-size:11.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--stone)}
.field input,.field select,.field textarea{
  padding:13px 4px;border:none;border-bottom:1px solid var(--line);border-radius:0;
  font-family:inherit;font-size:15px;background:transparent;
}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-bottom-color:var(--clay)}
.field textarea{resize:vertical;min-height:100px}
.form-note{font-size:12.5px;color:var(--text-light);margin-top:14px}
.map-box{aspect-ratio:21/9;overflow:hidden}
@media (max-width:820px){
  .contact-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
}

/* Page hero (inner pages) */
.page-hero{position:relative;min-height:56vh;display:flex;align-items:flex-end;color:#fff;overflow:hidden}
.page-hero .hero-inner{padding:170px 0 60px}
.page-hero h1{font-size:clamp(32px,5vw,54px);color:#fff;max-width:760px}
.page-hero p{color:#e3dbc9;max-width:560px;margin-top:16px;font-size:16px}

/* Footer */
footer{background:var(--ink);color:#a89b82;padding:76px 0 30px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px;margin-bottom:56px;padding-bottom:56px;border-bottom:1px solid var(--line-light)}
.footer-brand .brand-text .name{color:#fff}
.footer-brand p{font-size:14px;max-width:280px;margin-top:16px;color:#a89b82}
footer h4{color:#fff;font-size:12px;letter-spacing:.12em;text-transform:uppercase;margin-bottom:20px;font-weight:700}
footer ul li{margin-bottom:12px;font-size:14.5px}
footer ul li a:hover{color:var(--gold-light)}
.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:12.5px;color:#7a6f5c}
.social-row{display:flex;gap:12px;margin-top:20px}
.social-row a{
  width:38px;height:38px;border-radius:50%;border:1px solid var(--line-light);
  display:flex;align-items:center;justify-content:center;
}
.social-row a:hover{background:var(--clay);border-color:var(--clay)}
.social-row svg{width:16px;height:16px;color:#fff}

/* ============ Responsive ============ */
@media (max-width:960px){
  .feature-row,.feature-row.reverse{grid-template-columns:1fr;gap:28px}
  .feature-row.reverse .feature-media{order:0}
  .value-grid{grid-template-columns:1fr 1fr}
  .mosaic-feature{grid-template-columns:1fr 1fr}
  .mosaic-feature .m-item{height:320px}
  .policy-grid{grid-template-columns:1fr}
  .cta-split{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:720px){
  nav.main-nav{
    position:fixed;top:0;left:0;right:0;bottom:0;
    background:var(--ink);color:#fff;flex-direction:column;justify-content:center;
    padding:30px 24px;gap:26px;
    transform:translateX(100%);transition:transform .35s ease;z-index:99;
  }
  nav.main-nav.open{transform:translateX(0)}
  nav.main-nav a{font-size:18px}
  .menu-toggle{display:block;z-index:101}
  .header-phone{display:none}
  .value-grid{grid-template-columns:1fr}
  .mosaic-feature{grid-template-columns:1fr}
  .mosaic-feature .m-item{height:280px}
  .mosaic-grid{grid-template-columns:repeat(2,1fr)}
  .prod-grid{grid-template-columns:1fr 1fr}
  .form-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .section{padding:64px 0}
  .hero-stats div{margin-right:24px;padding-right:24px}
  .hero-stats strong{font-size:28px}
  .timeline-item{grid-template-columns:56px 1fr}
}
@media (max-width:520px){
  .mosaic-grid{grid-template-columns:1fr}
}