/* Nhà Có Mèo — brand stylesheet
   Palette: cream / light wood / warm ink
   Mobile-first, then >=768px and >=1024px enhancements */

:root{
  --cream:#FBF7F1;
  --cream-2:#F3ECE2;
  --cream-3:#EDE4D8;
  --wood:#C8A27A;
  --wood-dark:#A07D54;
  --ink:#2E2925;
  --ink-soft:#6B625A;
  --moss:#7C8C6B;
  --clay:#C97B5A;
  --line:#E6DDD1;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 10px 30px rgba(46,41,37,.07);
  --shadow-hover:0 18px 44px rgba(46,41,37,.12);
  --serif:"Playfair Display",Georgia,"Times New Roman",serif;
  --sans:"Be Vietnam Pro",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  --maxw:1180px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  background:var(--cream);
  color:var(--ink);
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;line-height:1.18;margin:0 0 .5em;letter-spacing:-.01em}
h1{font-size:clamp(2rem,7.4vw,3.7rem)}
h2{font-size:clamp(1.6rem,4.6vw,2.5rem)}
h3{font-size:1.2rem}
p{margin:0 0 1em}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}
.section{padding:64px 0}
.section--tight{padding:44px 0}
.section--alt{background:var(--cream-2)}
.center{text-align:center}
.eyebrow{
  font-size:.74rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--wood-dark);font-weight:600;margin-bottom:12px;
}
.lead{font-size:1.06rem;color:var(--ink-soft);max-width:62ch}
.muted{color:var(--ink-soft)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:999px;font-weight:600;font-size:.95rem;
  border:1.5px solid transparent;cursor:pointer;transition:all .22s ease;
  font-family:var(--sans);
}
.btn--primary{background:var(--ink);color:#fff}
.btn--primary:hover{background:#423a33;transform:translateY(-2px);box-shadow:var(--shadow)}
.btn--outline{border-color:var(--ink);color:var(--ink);background:transparent}
.btn--outline:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn--wood{background:var(--wood);color:#fff}
.btn--wood:hover{background:var(--wood-dark);transform:translateY(-2px)}
.btn--sm{padding:9px 18px;font-size:.85rem}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}

/* ---------- header ---------- */
.header{
  position:sticky;top:0;z-index:60;
  background:rgba(251,247,241,.92);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
}
.header__inner{
  max-width:var(--maxw);margin:0 auto;padding:12px 20px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--serif);font-size:1.18rem;font-weight:700;letter-spacing:-.02em}
.brand__mark{width:34px;height:34px;flex:none}
.brand small{display:block;font-family:var(--sans);font-size:.6rem;letter-spacing:.22em;text-transform:uppercase;color:var(--ink-soft);font-weight:500;margin-top:-4px}

.nav{display:none;gap:28px;align-items:center}
.nav a{font-size:.93rem;font-weight:500;color:var(--ink-soft);position:relative;padding:4px 0}
.nav a:hover,.nav a.is-active{color:var(--ink)}
.nav a.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--wood);border-radius:2px;
}
.header__cta{display:none}
.burger{
  width:42px;height:42px;border:1px solid var(--line);background:#fff;border-radius:12px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;
}
.burger span{display:block;width:18px;height:1.6px;background:var(--ink);border-radius:2px;transition:.25s}
.burger.is-open span:nth-child(1){transform:translateY(6.6px) rotate(45deg)}
.burger.is-open span:nth-child(2){opacity:0}
.burger.is-open span:nth-child(3){transform:translateY(-6.6px) rotate(-45deg)}

.mobile-menu{
  display:none;border-top:1px solid var(--line);background:var(--cream);
  padding:10px 20px 20px;
}
.mobile-menu.is-open{display:block}
.mobile-menu a{display:block;padding:12px 0;border-bottom:1px solid var(--line);font-weight:500}
.mobile-menu .btn{margin-top:18px;width:100%}

/* ---------- hero ---------- */
.hero{background:linear-gradient(180deg,var(--cream) 0%,var(--cream-2) 100%);padding:56px 0 0}
.hero__grid{display:grid;gap:34px}
.hero h1 span{color:var(--wood-dark);font-style:italic}
.hero__text p.lead{margin-bottom:0}
.hero__art{
  border-radius:var(--radius);overflow:hidden;background:#fff;box-shadow:var(--shadow);
  border:1px solid var(--line);
}
.hero__art svg{width:100%;height:auto;display:block}
.hero__badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.chip{
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:6px 14px;font-size:.78rem;color:var(--ink-soft);
}

/* ---------- trust bar ---------- */
.trustbar{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff}
.trustbar__inner{
  max-width:var(--maxw);margin:0 auto;padding:16px 20px;
  display:grid;grid-template-columns:repeat(2,1fr);gap:12px 16px;
}
.trustbar div{display:flex;align-items:center;gap:8px;font-size:.83rem;color:var(--ink-soft)}
.trustbar svg{width:17px;height:17px;flex:none;color:var(--wood-dark)}

/* ---------- section head ---------- */
.section-head{margin-bottom:34px}
.section-head h2{margin-bottom:.35em}
.section-head p{margin:0}

/* ---------- categories ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.cat-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:18px 16px 16px;transition:.25s;display:block;
}
.cat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--wood)}
.cat-card__art{
  aspect-ratio:1/1;background:var(--cream-2);border-radius:var(--radius-sm);
  display:flex;align-items:center;justify-content:center;margin-bottom:12px;overflow:hidden;
}
.cat-card__art svg{width:78%;height:auto}
.cat-card h3{font-size:1rem;margin:0 0 2px}
.cat-card span{font-size:.78rem;color:var(--ink-soft)}

/* ---------- products ---------- */
.prod-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.product{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  display:flex;flex-direction:column;transition:.25s;
}
.product:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.product__art{aspect-ratio:4/5;background:var(--cream-2);display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative}
.product__art svg{width:86%;height:auto}
.product__tag{
  position:absolute;top:12px;left:12px;background:var(--moss);color:#fff;
  font-size:.66rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  padding:4px 10px;border-radius:999px;
}
.product__tag--new{background:var(--clay)}
.product__body{padding:16px;display:flex;flex-direction:column;flex:1;gap:6px}
.product__cat{font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--wood-dark);font-weight:600}
.product h3{font-size:1.02rem;margin:0;font-family:var(--sans);font-weight:600}
.product__desc{font-size:.83rem;color:var(--ink-soft);margin:0;flex:1}
.product__price{font-weight:700;font-size:1.02rem;margin-top:6px}
.product__price small{font-weight:400;color:var(--ink-soft);font-size:.75rem;text-decoration:line-through;margin-left:6px}
.product__actions{display:flex;gap:8px;margin-top:12px;flex-wrap:wrap}
.product__actions .btn{flex:1;min-width:118px}

/* ---------- features ---------- */
.feat-grid{display:grid;gap:18px}
.feat{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;
}
.feat svg{width:34px;height:34px;color:var(--wood-dark);margin-bottom:14px}
.feat h3{margin:0 0 6px;font-family:var(--sans);font-size:1.02rem;font-weight:600}
.feat p{margin:0;font-size:.88rem;color:var(--ink-soft)}

/* ---------- story ---------- */
.story__grid{display:grid;gap:30px;align-items:center}
.story__art{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow)}
.story__art svg{width:100%;height:auto;display:block}
.story ul{list-style:none;padding:0;margin:20px 0 0}
.story li{position:relative;padding-left:26px;margin-bottom:10px;font-size:.92rem;color:var(--ink-soft)}
.story li::before{
  content:"";position:absolute;left:0;top:9px;width:10px;height:10px;border-radius:50%;
  background:var(--wood);
}

/* ---------- reviews ---------- */
.rev-grid{display:grid;gap:16px}
.review{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px 22px}
.review__stars{color:var(--clay);letter-spacing:2px;font-size:.9rem;margin-bottom:10px}
.review p{font-size:.93rem;margin:0 0 14px}
.review__who{font-size:.8rem;color:var(--ink-soft);font-weight:600}

/* ---------- gallery ---------- */
.gal-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.gal-grid > *{aspect-ratio:1/1;border-radius:var(--radius-sm);overflow:hidden;background:var(--cream-3);display:flex;align-items:center;justify-content:center}
.gal-grid svg{width:74%;height:auto}

/* ---------- cta band ---------- */
.cta-band{background:var(--ink);color:#fff;border-radius:var(--radius);padding:44px 26px;text-align:center;margin:0 0 0}
.cta-band h2{color:#fff}
.cta-band p{color:rgba(255,255,255,.72);max-width:52ch;margin:0 auto}
.cta-band .btn--primary{background:var(--cream);color:var(--ink)}
.cta-band .btn--primary:hover{background:#fff}
.cta-band .btn--outline{border-color:rgba(255,255,255,.55);color:#fff}
.cta-band .btn--outline:hover{background:#fff;color:var(--ink)}
.cta-band .btn-row{justify-content:center}

/* ---------- contact / form ---------- */
.contact-grid{display:grid;gap:26px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px}
.card h3{margin-top:0;font-family:var(--sans);font-weight:600}
.field{margin-bottom:14px}
.field label{display:block;font-size:.82rem;font-weight:600;margin-bottom:6px}
.field input,.field textarea,.field select{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:var(--radius-sm);
  font-family:var(--sans);font-size:.92rem;background:var(--cream);color:var(--ink);
}
.field input:focus,.field textarea:focus,.field select:focus{outline:2px solid var(--wood);outline-offset:1px;border-color:var(--wood)}
.field textarea{min-height:112px;resize:vertical}
.contact-list{list-style:none;padding:0;margin:0}
.contact-list li{display:flex;gap:12px;align-items:flex-start;padding:12px 0;border-bottom:1px dashed var(--line)}
.contact-list li:last-child{border-bottom:0}
.contact-list svg{width:19px;height:19px;color:var(--wood-dark);margin-top:3px;flex:none}
.contact-list strong{display:block;font-size:.92rem}
.contact-list span{font-size:.83rem;color:var(--ink-soft)}
.contact-list a:hover{text-decoration:underline}

/* ---------- faq ---------- */
.faq{border-top:1px solid var(--line)}
.faq__item{border-bottom:1px solid var(--line)}
.faq__q{
  width:100%;background:none;border:0;text-align:left;font-family:var(--sans);font-weight:600;
  font-size:.95rem;padding:18px 34px 18px 0;cursor:pointer;position:relative;color:var(--ink);
}
.faq__q::after{
  content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);
  font-size:1.2rem;color:var(--wood-dark);font-weight:400;transition:.25s;
}
.faq__item.is-open .faq__q::after{content:"–"}
.faq__a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq__a p{padding:0 0 18px;margin:0;font-size:.9rem;color:var(--ink-soft)}

/* ---------- filters ---------- */
.filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px}
.filters button{
  border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 16px;
  font-family:var(--sans);font-size:.84rem;cursor:pointer;color:var(--ink-soft);transition:.2s;
}
.filters button:hover{border-color:var(--wood);color:var(--ink)}
.filters button.is-active{background:var(--ink);color:#fff;border-color:var(--ink)}

/* ---------- footer ---------- */
.footer{background:var(--cream-3);padding:48px 0 24px;margin-top:20px;border-top:1px solid var(--line)}
.footer__grid{display:grid;gap:28px}
.footer h4{font-family:var(--sans);font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-soft);margin:0 0 12px;font-weight:700}
.footer ul{list-style:none;padding:0;margin:0}
.footer li{margin-bottom:8px;font-size:.88rem}
.footer li a:hover{text-decoration:underline}
.footer__bottom{
  border-top:1px solid var(--line);margin-top:32px;padding-top:18px;
  display:flex;flex-direction:column;gap:8px;font-size:.78rem;color:var(--ink-soft);
}
.socials{display:flex;gap:10px;margin-top:14px}
.socials a{
  width:38px;height:38px;border-radius:50%;background:#fff;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;transition:.2s;
}
.socials a:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.socials svg{width:18px;height:18px}

/* ---------- floating buttons ---------- */
.fab{
  position:fixed;right:16px;bottom:16px;z-index:70;display:flex;flex-direction:column;gap:10px;
}
.fab a{
  width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 22px rgba(46,41,37,.22);font-size:.7rem;font-weight:700;color:#fff;text-align:center;
  line-height:1.1;
}
.fab a svg{width:24px;height:24px}
.fab__zalo{background:#0068FF}
.fab__mes{background:#fff;color:#0068FF !important;border:1px solid var(--line)}
.fab__top{background:var(--ink);font-size:1.1rem !important}

/* ---------- utilities ---------- */
.breadcrumb{font-size:.8rem;color:var(--ink-soft);padding:18px 0 0}
.breadcrumb a:hover{text-decoration:underline}
.page-hero{padding:44px 0 8px;text-align:center}
.page-hero h1{font-size:clamp(1.9rem,6vw,3rem)}
.hidden{display:none !important}
.note{
  background:#fff;border:1px dashed var(--wood);border-radius:var(--radius-sm);
  padding:14px 16px;font-size:.84rem;color:var(--ink-soft);
}

/* ---------- ≥768px ---------- */
@media (min-width:768px){
  .container{padding:0 32px}
  .section{padding:84px 0}
  .cat-grid{grid-template-columns:repeat(3,1fr);gap:18px}
  .prod-grid{grid-template-columns:repeat(3,1fr);gap:20px}
  .feat-grid{grid-template-columns:repeat(2,1fr)}
  .rev-grid{grid-template-columns:repeat(3,1fr)}
  .gal-grid{grid-template-columns:repeat(6,1fr)}
  .contact-grid{grid-template-columns:1fr 1fr}
  .trustbar__inner{grid-template-columns:repeat(4,1fr)}
  .footer__grid{grid-template-columns:2fr 1fr 1fr 1fr}
  .footer__bottom{flex-direction:row;justify-content:space-between;align-items:center}
  .cta-band{padding:60px 46px}
}

/* ---------- ≥1024px ---------- */
@media (min-width:1024px){
  .nav{display:flex}
  .header__cta{display:inline-flex}
  .burger{display:none}
  .hero__grid{grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding-bottom:56px}
  .hero{padding-top:70px}
  .story__grid{grid-template-columns:1fr 1fr;gap:56px}
  .feat-grid{grid-template-columns:repeat(4,1fr)}
  .prod-grid{grid-template-columns:repeat(4,1fr)}
  .cat-grid{grid-template-columns:repeat(6,1fr)}
  .section-head--split{display:flex;align-items:flex-end;justify-content:space-between;gap:30px}
  .section-head--split p{max-width:44ch;margin:0}
}

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