/* Chợ Decor. Trắng và nâu #ba9878. Không dùng tài nguyên bên ngoài. */
:root{--nau:#ba9878;--nau-d:#8f7154;--nau-l:#f4ede4;--ink:#1c1917;--mute:#6b625a;--line:#e7dfd5;--bg:#fff;--cam:#e8782a;--r:6px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Montserrat,"Helvetica Neue",Arial,"Segoe UI",sans-serif;color:var(--ink);background:var(--bg);line-height:1.55;-webkit-text-size-adjust:100%}
img{max-width:100%;display:block}
a{color:inherit}
.wrap{max-width:1120px;margin:0 auto;padding:0 18px}
.small{font-size:.82rem;color:var(--mute)}
h1,h2,h3{line-height:1.2;text-wrap:balance}

/* Thanh trên */
.top{background:var(--nau);position:sticky;top:0;z-index:30}
.top .wrap{display:flex;align-items:center;justify-content:space-between;height:60px;gap:10px}
.logo img{height:34px;width:auto;display:block}
@media(min-width:900px){.logo img{height:54px}.top .wrap{height:86px;max-width:1360px;padding:0 28px}.ib{width:40px;height:40px}.ib svg{width:22px;height:22px}}
@media(min-width:1500px){.logo img{height:60px}.top .wrap{height:94px}}
.icons{display:flex;gap:2px;align-items:center}
.ib{width:36px;height:36px;border:0;background:none;display:grid;place-items:center;cursor:pointer;color:var(--ink);border-radius:50%;text-decoration:none}
.ib:hover{background:rgba(255,255,255,.25)}
.ib svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.nav{display:none}
.searchbar{display:none;background:#fff;border-bottom:1px solid var(--line)}
.searchbar.on{display:block}
.searchbar form{display:flex;gap:8px;padding:12px 0}
.searchbar input{flex:1;min-width:0;padding:12px 14px;border:1px solid var(--line);border-radius:var(--r);font:inherit}
.menu{display:none;background:#fff;border-bottom:1px solid var(--line)}
.menu.on{display:block}
.menu a{display:block;padding:14px 18px;border-top:1px solid var(--line);text-decoration:none;font-weight:400;font-size:.9rem;text-transform:uppercase;letter-spacing:.02em}
@media(min-width:1380px){
  .nav{display:flex;gap:18px;margin-left:36px;flex:1}
  .nav a{white-space:nowrap;text-decoration:none;font-size:.82rem;font-weight:400;text-transform:uppercase;letter-spacing:.03em;padding:6px 0;border-bottom:2px solid transparent}
  .nav a:hover{border-color:var(--ink)}
  #bm{display:none}
}

/* Banner trượt */
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--nau);color:#fff;border:0;border-radius:999px;padding:12px 26px;font:inherit;font-size:.82rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;cursor:pointer;text-decoration:none;transition:background .25s,transform .25s}
.btn:hover{background:var(--nau-d)}
.btn.line{background:#fff;color:var(--ink);border:1.5px solid var(--ink)}
.btn.line:hover{background:var(--ink);color:#fff}
.btn[disabled]{opacity:.45;cursor:not-allowed}
.hero{position:relative;height:clamp(340px,50vw,580px);overflow:hidden;color:#fff;background:#2a2622;touch-action:pan-y;user-select:none;-webkit-user-select:none}
.sl{position:absolute;inset:0;transform:translate3d(100%,0,0);will-change:transform}
.sl.hien{transform:translate3d(0,0,0)}
.sl.chay{transition:transform .9s cubic-bezier(.65,.05,.2,1)}
.sl img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;pointer-events:none;-webkit-user-drag:none;transform:scale(1.06);transition:transform 6s ease-out}
.sl.on img{transform:scale(1)}
/* lớp phủ đen nhẹ ở nửa dưới: chỉ đổ bóng để chữ trắng nổi, không che chi tiết ảnh */
.sl:after{content:"";position:absolute;left:0;right:0;bottom:0;height:56%;background:linear-gradient(to top,rgba(0,0,0,.5) 0%,rgba(0,0,0,.3) 38%,rgba(0,0,0,.1) 72%,rgba(0,0,0,0) 100%);pointer-events:none}
.sl .tx{position:absolute;z-index:2;left:0;right:0;bottom:0;padding:0 18px 56px;text-align:center;max-width:860px;margin:0 auto}
.sl h2,.sl h1{margin:0 0 18px;font-size:clamp(1.45rem,4.6vw,2.7rem);text-transform:uppercase;letter-spacing:.01em;line-height:1.18;text-shadow:0 2px 14px rgba(0,0,0,.35)}
.sl h2 .w,.sl h1 .w{display:inline-block;opacity:0;transform:translate3d(0,26px,0);filter:blur(8px);transition:opacity .7s ease,transform .8s cubic-bezier(.2,.7,.2,1),filter .7s ease;transition-delay:calc(var(--i)*.09s + .25s)}
.sl.on .w{opacity:1;transform:none;filter:none}
.sl .btn{opacity:0;transform:translate3d(0,16px,0);transition:opacity .7s ease .85s,transform .8s cubic-bezier(.2,.7,.2,1) .85s,background .25s}
.sl.on .btn{opacity:1;transform:none}
.sl .btn:hover{transform:translate3d(0,-2px,0)}
.dots{position:absolute;z-index:3;left:0;right:0;bottom:20px;display:flex;justify-content:center;gap:8px}
.dots button{width:9px;height:9px;padding:0;border:0;border-radius:99px;background:rgba(255,255,255,.55);cursor:pointer;transition:width .35s,background .35s}
.dots button.on{width:26px;background:#fff}
@media(prefers-reduced-motion:reduce){.sl.chay{transition:none}.sl img{transition:none;transform:none}.sl .w,.sl .btn{transition:none;opacity:1;transform:none;filter:none}}

/* Tab danh mục */
.tabs{display:flex;gap:6px;overflow-x:auto;padding:18px 2px 8px;scrollbar-width:none;justify-content:flex-start;-webkit-mask-image:linear-gradient(90deg,transparent 0,#000 18px,#000 calc(100% - 28px),transparent 100%);mask-image:linear-gradient(90deg,transparent 0,#000 18px,#000 calc(100% - 28px),transparent 100%)}
.tabs::-webkit-scrollbar{display:none}
.tabs a{white-space:nowrap;font-size:.84rem;font-weight:400;letter-spacing:.06em;text-transform:uppercase;text-decoration:none;padding:9px 16px;border-radius:999px;color:var(--ink);transition:background .25s,color .25s}
.tabs a:hover,.tabs a:focus-visible{background:var(--nau-l);color:var(--nau-d)}
@media(min-width:900px){.tabs{justify-content:center;gap:10px;-webkit-mask-image:none;mask-image:none}}

.blk{padding:30px 0}
.blk h2{font-size:1.15rem;text-transform:uppercase;letter-spacing:.03em;margin:0 0 18px}
.blk .hd{display:flex;justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:18px}
.blk .hd h2{margin:0}
.blk .hd a{font-size:.8rem;font-weight:700;text-transform:uppercase;white-space:nowrap}
.alt{background:var(--nau-l)}

/* Thẻ sản phẩm */
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px 16px}
@media(min-width:700px){.grid{grid-template-columns:repeat(3,1fr)}}
@media(min-width:960px){.grid{grid-template-columns:repeat(4,1fr)}}
.card{text-decoration:none;display:block;text-align:center}
.card .im{aspect-ratio:1;overflow:hidden;background:var(--nau-l);border-radius:2px}
.card img{width:100%;height:100%;object-fit:cover;transition:transform .35s}
.card:hover img{transform:scale(1.04)}
.card h3{margin:10px 0 2px;font-size:.88rem;font-weight:700}
.card .gia{font-size:.88rem}
.card .nh{font-size:.8rem;font-weight:800;color:var(--cam);min-height:1.2em}
.rail{display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:8px;scrollbar-width:none}
.rail::-webkit-scrollbar{display:none}
.rail .card{flex:0 0 min(46%,270px);scroll-snap-align:start}

/* Bài viết */
.ban{position:relative;display:grid;align-items:end;min-height:330px;color:#fff;text-decoration:none;overflow:hidden}
.ban img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.ban:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,0) 30%,rgba(30,20,12,.7))}
.ban div{position:relative;z-index:2;padding:26px 18px;max-width:1120px;margin:0 auto;width:100%}
.ban h2{margin:0 0 8px;font-size:clamp(1.3rem,3.6vw,2.1rem);text-transform:uppercase;color:#fff}
.ban span{text-decoration:underline;font-size:.85rem;text-transform:uppercase;letter-spacing:.04em}
.bai{display:grid;gap:22px}
@media(min-width:760px){.bai{grid-template-columns:repeat(2,1fr)}}
.bai a{text-decoration:none;display:grid;grid-template-columns:120px 1fr;gap:14px;align-items:center}
.bai img{aspect-ratio:1;object-fit:cover;width:120px;height:120px;border-radius:2px}
.bai h3{margin:0 0 4px;font-size:.98rem}
.bai p{margin:0;font-size:.84rem;color:var(--mute)}
.tag{display:inline-block;font-size:.7rem;font-weight:800;text-transform:uppercase;color:var(--nau-d);letter-spacing:.05em;margin-bottom:4px}

/* Cách hoạt động */
.steps{list-style:none;padding:0;margin:0;display:grid;gap:14px}
@media(min-width:760px){.steps{grid-template-columns:repeat(4,1fr)}}
.steps li{background:#fff;padding:18px;border-radius:var(--r);border:1px solid var(--line);font-size:.88rem}
.steps b{display:block;margin-bottom:4px;font-size:.95rem}
.steps i{font-style:normal;color:var(--nau-d);font-weight:800}

/* Trang danh mục */
.pg{padding-top:22px;padding-bottom:10px}
.pg h1{margin:0 0 4px;font-size:1.5rem;text-transform:uppercase}
.bar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;justify-content:space-between;margin:14px 0 18px}
.chips{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;max-width:100%}
.chips::-webkit-scrollbar{display:none}
.chip{white-space:nowrap;padding:8px 14px;border:1px solid var(--line);border-radius:999px;font-size:.78rem;font-weight:600;text-decoration:none;background:#fff}
.chip.on{background:var(--ink);color:#fff;border-color:var(--ink)}
select,input[type=text],input[type=search]{font:inherit;padding:10px 12px;border:1px solid var(--line);border-radius:var(--r);background:#fff;max-width:100%}

/* Chi tiết */
.ct{display:grid;gap:26px;padding:24px 0}
@media(min-width:820px){.ct{grid-template-columns:1fr 1fr;gap:44px}}
.ct .anh{background:var(--nau-l);aspect-ratio:1;overflow:hidden}
.ct .anh img{width:100%;height:100%;object-fit:cover}
.ct h1{margin:0 0 8px;font-size:1.5rem}
.ct .gia{font-size:1.4rem;font-weight:800;margin:6px 0}
.ct dl{display:grid;grid-template-columns:110px 1fr;gap:6px 10px;margin:18px 0;font-size:.9rem}
.ct dt{color:var(--mute)}
.ct dd{margin:0}
.acts{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0 6px}
.crumb{font-size:.8rem;color:var(--mute);padding-top:16px}
.crumb a{text-decoration:none}
.thongbao{background:var(--nau-l);border-radius:var(--r);padding:12px 14px;font-size:.82rem;color:#5b4a38;margin:14px 0}

/* Thử decor */
.tool{max-width:680px;margin:0 auto;padding:26px 18px 40px}
.tool h1{font-size:1.5rem;text-transform:uppercase;margin:0 0 8px}
.lbl{display:block;font-weight:700;font-size:.85rem;margin:16px 0 6px}
.tool select,.tool input[type=file]{width:100%}
#preview{display:none;max-height:240px;margin-top:10px;border-radius:var(--r)}
.note{background:#fff7e6;border:1px solid #f0d9a8;border-radius:var(--r);padding:12px 14px;font-size:.85rem;margin:14px 0}
.consent{border:1px solid var(--line);border-radius:var(--r);padding:14px;margin:18px 0;font-size:.85rem;background:#fcfaf7}
.consent p{margin:0 0 8px}
.chk{display:flex;gap:10px;align-items:flex-start;margin:10px 0 0}
.chk input{margin-top:4px;flex:0 0 auto}
.err{color:#b42318;font-size:.88rem;min-height:1.2em;margin:8px 0}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
#chat{display:none;border:1px solid var(--line);border-radius:var(--r);margin-top:14px;background:#fff}
#chat header{padding:12px 14px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;gap:8px;flex-wrap:wrap;font-size:.88rem}
#msgs{padding:12px;max-height:380px;overflow:auto;display:flex;flex-direction:column;gap:10px}
.m{padding:10px 12px;border-radius:10px;max-width:88%;font-size:.9rem;background:var(--nau-l)}
.m.khach{align-self:flex-end;background:var(--nau);color:#fff}
.m .who{display:block;font-size:.7rem;font-weight:800;text-transform:uppercase;opacity:.7;margin-bottom:2px}
.m img{margin-top:8px;border-radius:6px}
.m .tag{display:block;font-size:.7rem;margin-top:4px}
#chatform{display:flex;gap:8px;padding:10px;border-top:1px solid var(--line)}
#chatform input{flex:1;min-width:0}

/* Trợ lý AI nổi */
.ai-fab{position:fixed;right:max(16px,env(safe-area-inset-right));bottom:max(18px,env(safe-area-inset-bottom));z-index:40;display:flex;align-items:center;gap:8px;background:var(--ink);color:#fff;border:0;border-radius:999px;padding:12px 18px 12px 14px;font:inherit;font-weight:700;font-size:.82rem;cursor:pointer;box-shadow:0 6px 20px rgba(0,0,0,.25)}
.ai-fab svg{width:22px;height:22px;fill:var(--nau);stroke:none}
.ai{position:fixed;right:max(12px,env(safe-area-inset-right));bottom:max(12px,env(safe-area-inset-bottom));z-index:50;width:min(380px,calc(100vw - 24px));height:min(560px,calc(100vh - 24px));background:#fff;border-radius:14px;box-shadow:0 10px 40px rgba(0,0,0,.3);display:none;flex-direction:column;overflow:hidden}
.ai.on{display:flex}
.ai header{background:var(--nau);padding:12px 14px;display:flex;justify-content:space-between;align-items:center}
.ai header b{font-size:.95rem}
.ai header button{background:none;border:0;font-size:1.5rem;line-height:1;cursor:pointer}
.ai .log{flex:1;overflow:auto;padding:12px;display:flex;flex-direction:column;gap:10px;background:#faf7f3}
.ai .b{background:#fff;border:1px solid var(--line);padding:10px 12px;border-radius:12px;font-size:.88rem;max-width:92%}
.ai .u{align-self:flex-end;background:var(--ink);color:#fff;padding:10px 12px;border-radius:12px;font-size:.88rem;max-width:88%}
.ai .sg{display:grid;gap:8px;margin-top:8px}
.ai .sg a{display:grid;grid-template-columns:56px 1fr;gap:10px;align-items:center;text-decoration:none;font-size:.82rem;border-top:1px solid var(--line);padding-top:8px}
.ai .sg img{width:56px;height:56px;object-fit:cover;border-radius:4px}
.ai .qr{display:flex;gap:6px;flex-wrap:wrap;padding:8px 12px 0}
.ai .qr button{border:1px solid var(--line);background:#fff;border-radius:999px;padding:6px 12px;font:inherit;font-size:.76rem;cursor:pointer}
.ai form{display:flex;gap:8px;padding:10px}
.ai form input{flex:1;min-width:0}
.ai .ft{font-size:.68rem;color:var(--mute);padding:0 12px 8px}

footer{background:var(--ink);color:#d8cfc4;margin-top:30px;padding:34px 0 90px;font-size:.84rem}
footer a{color:#fff}
footer .cols{display:grid;gap:22px}
@media(min-width:760px){footer .cols{grid-template-columns:1.4fr 1fr 1fr}}
footer h4{margin:0 0 8px;color:#fff;text-transform:uppercase;font-size:.78rem;letter-spacing:.06em}
footer ul{list-style:none;margin:0;padding:0;display:grid;gap:5px}
.prose{max-width:760px;padding-top:20px;padding-bottom:40px}
.prose h2{font-size:1.15rem;margin-top:28px}
.bv{max-width:720px;margin:0 auto;padding:24px 18px 30px}
.bv h1{font-size:1.7rem;margin:6px 0 14px}
.bv img{border-radius:4px;margin:14px 0}
.bv p{margin:0 0 14px}

/* Tim, thông báo, tài khoản */
.card{position:relative}
.card .lk{display:block;text-decoration:none;color:inherit}
.tim{position:absolute;top:8px;right:8px;width:38px;height:38px;border-radius:50%;border:0;background:rgba(255,255,255,.92);display:grid;place-items:center;cursor:pointer;box-shadow:0 1px 4px rgba(0,0,0,.15);color:var(--ink)}
.tim svg{width:21px;height:21px;fill:none;stroke:currentColor;stroke-width:2;stroke-linejoin:round;stroke-linecap:round}
.tim.on svg{fill:#d6336c;stroke:#d6336c}
.tim.big{position:static;width:auto;height:auto;padding:12px 18px;border-radius:999px;border:1.5px solid var(--ink);display:inline-flex;gap:8px;box-shadow:none;background:#fff;font:inherit;font-size:.82rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em}
.dem{position:absolute;top:2px;right:0;min-width:18px;height:18px;border-radius:9px;background:#d6336c;color:#fff;font-size:.68rem;font-weight:700;place-items:center;padding:0 4px}
.ib{position:relative}
.ib-nguoi{display:none}
@media(min-width:700px){.ib-nguoi{display:grid}}
#toast{position:fixed;left:50%;bottom:84px;transform:translateX(-50%) translateY(20px);background:var(--ink);color:#fff;padding:12px 16px;border-radius:10px;font-size:.84rem;opacity:0;pointer-events:none;transition:.25s;z-index:60;max-width:calc(100vw - 32px)}
#toast.on{opacity:1;transform:translateX(-50%);pointer-events:auto}
#toast a{color:var(--nau);font-weight:700}
.wall{background:var(--nau-l);border-radius:var(--r);padding:20px;margin:16px 0}
.seg{display:flex;border:1px solid var(--line);border-radius:999px;overflow:hidden;margin:12px 0}
.seg button{flex:1;border:0;background:#fff;padding:11px;font:inherit;font-weight:700;font-size:.85rem;cursor:pointer}
.seg button.on{background:var(--ink);color:#fff}
.tool input[type=text],.tool input[type=email],.tool input[type=password]{width:100%}
.acc{border-top:1px solid var(--line);margin-top:36px;padding-top:8px}
.tai{margin-top:8px;padding:8px 16px;font-size:.72rem;width:100%;justify-content:center}

/* Giá, khuyến mãi, bộ lọc */
.goc{color:var(--mute);font-size:.78rem;font-weight:400}
.giam{color:#fff;background:var(--cam);font-size:.7rem;font-weight:800;padding:1px 5px;border-radius:3px}
.tk{font-size:.76rem;color:var(--mute)}
.gia-h{font-size:.88rem}
.fbtn{display:inline-flex}
.loc{display:none;border:1px solid var(--line);border-radius:var(--r);padding:14px;margin:0 0 18px;gap:14px 18px;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));background:#fcfaf7}
.loc.on{display:grid}
.loc label{display:grid;gap:4px;font-size:.78rem;font-weight:700}
.loc select{width:100%}
.loc .chk{font-weight:600;align-self:end}
.loc .xoa{align-self:end}
.ct .gia{font-size:1.4rem}