:root{--ink:#0f1722;--paper:#f4f5f8;--card:#fff;--line:#e3e6ec;--mute:#667085;--acc:#3358ff;--tag:#e5384f}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.5 "Be Vietnam Pro",system-ui,"Segoe UI",sans-serif}
a{color:inherit;text-decoration:none}img{max-width:100%;display:block}
:focus-visible{outline:3px solid var(--acc);outline-offset:2px}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
header.top{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.bar{display:flex;align-items:center;gap:10px;padding:12px 0;flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;margin-right:auto}
.logo img{height:150px;width:auto}
.hero{background-size:cover;background-position:center}
.btn{display:inline-flex;align-items:center;gap:6px;padding:9px 16px;border-radius:10px;border:1px solid var(--line);background:#fff;font-weight:600;font-size:14px;cursor:pointer;color:var(--ink)}
.btn.pri{background:var(--acc);border-color:var(--acc);color:#fff}
.btn.dark{background:var(--ink);border-color:var(--ink);color:#fff}
.search{flex:1 1 220px;max-width:320px;padding:9px 14px;border:1px solid var(--line);border-radius:10px;font:inherit;font-size:14px}
.hero{background:radial-gradient(900px 400px at 85% 20%,#3a3fd6aa,transparent),linear-gradient(120deg,#0b1020,#151a33);color:#fff;padding:84px 0 92px}
.hero h1{font-size:clamp(36px,7vw,68px);line-height:1.05;margin:0 0 16px;letter-spacing:-.02em}
.hero p{max-width:520px;color:#c9cfe6;margin:0 0 28px;font-size:18px}
section{padding:44px 0}
h2{font-size:26px;margin:0 0 20px}
.head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;flex-wrap:wrap}
.cats{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}
.cat{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px 12px;text-align:center;cursor:pointer;font:inherit;color:inherit}
.cat b{display:block}.cat small{color:var(--mute)}
.cat[aria-pressed=true]{border-color:var(--acc);box-shadow:0 0 0 2px var(--acc) inset}
.tools{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:18px}
.tools select{padding:9px 12px;border-radius:10px;border:1px solid var(--line);font:inherit;font-size:14px;background:#fff}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden;display:flex;flex-direction:column}
.card:hover{border-color:var(--acc)}
.ph{position:relative;aspect-ratio:16/9;background:#e9ecf3 center/contain no-repeat}
.tag{position:absolute;top:10px;left:10px;background:var(--tag);color:#fff;font-size:12px;font-weight:700;padding:3px 10px;border-radius:99px}
.info{padding:12px 14px 14px;display:flex;flex-direction:column;gap:4px;flex:1}
.info small{color:var(--mute)}.info h3{margin:0;font-size:15px;line-height:1.35}
.price{margin-top:auto;padding-top:8px;font-weight:800;font-size:18px}
.empty{color:var(--mute);padding:30px 0}
.two{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px}
.box{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:22px}
.box ul{padding-left:20px;margin:8px 0 0}
.row{display:flex;gap:8px;margin:12px 0}.row input{flex:1;min-width:0;padding:10px 14px;border:1px solid var(--line);border-radius:10px;font:inherit}
footer{background:var(--ink);color:#c9cfe6;padding:34px 0;margin-top:20px}
footer a{color:#fff;text-decoration:underline}
.float{position:fixed;right:16px;bottom:16px;display:flex;flex-direction:column;gap:10px;z-index:30}
.float a{width:48px;height:48px;border-radius:50%;background:#fff;border:1px solid var(--line);display:grid;place-items:center;font-weight:800;font-size:13px;box-shadow:0 4px 14px #0002}
.det{display:grid;grid-template-columns:1.1fr 1fr;gap:32px;padding:28px 0}
.det>*{min-width:0}
.det .main{aspect-ratio:16/9;border-radius:12px;background:#e9ecf3 center/contain no-repeat}
.thumbs{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}
.thumbs button{width:72px;height:56px;border:2px solid transparent;border-radius:8px;background:#e9ecf3 center/contain no-repeat;cursor:pointer}
.thumbs button[aria-current=true]{border-color:var(--acc)}
.det h1{font-size:28px;line-height:1.2;margin:8px 0}
.det .price{font-size:30px}
table{border-collapse:collapse;width:100%;margin:16px 0}td{padding:9px 0;border-bottom:1px solid var(--line);vertical-align:top}td:first-child{color:var(--mute);width:38%}
.cta{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.card.sold .ph::before{content:"";position:absolute;inset:0;background:#fffa}
.soldmark{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);background:var(--ink);color:#fff;font-weight:800;letter-spacing:.08em;padding:6px 16px;border-radius:8px}
.card.sold .price{color:var(--mute);text-decoration:line-through}
.soldbar{background:#fff1f2;color:#b42318;border:1px solid #fecdd3;border-radius:10px;padding:10px 14px;font-weight:600;margin:8px 0}
@media(max-width:760px){header.top{position:relative}.two,.det{grid-template-columns:minmax(0,1fr)}.det{gap:18px}.hero{padding:56px 0}.thumbs{flex-wrap:nowrap;overflow-x:auto;padding-bottom:4px}.thumbs button{flex:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
/* ===== Menu danh mục bên trái ===== */
html{scroll-padding-top:calc(var(--hh,0px) + 12px)}
.shell{max-width:1440px;margin:0 auto;display:grid;grid-template-columns:260px minmax(0,1fr);align-items:start}
.content{min-width:0}
.side{position:sticky;top:var(--hh,0px);max-height:calc(100vh - var(--hh,0px));overflow-y:auto;padding:20px 8px 20px 20px}
.sidebox{background:#fff;border:1px solid var(--line);border-radius:12px;padding:8px}
.sidebox a,.sidebox summary{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:10px 12px;border-radius:8px;font-weight:600;font-size:15px;cursor:pointer;list-style:none}
.sidebox summary::-webkit-details-marker{display:none}
.sidebox summary::after{content:"▾";color:var(--mute);transition:transform .15s}
.sidebox details:not([open]) summary::after{transform:rotate(-90deg)}
.sidebox a:hover,.sidebox summary:hover{background:var(--paper)}
.sidebox .sub{margin:2px 0 6px 10px;padding-left:8px;border-left:2px solid var(--line)}
.sidebox .sub a{font-weight:400;font-size:14px}
.sidebox small{color:var(--mute);font-weight:400}
.sidebox a[aria-current=true]{background:var(--ink);color:#fff}
.sidebox a[aria-current=true] small{color:#c9cfe6}
.menu-btn{display:none}
.scrim{position:fixed;inset:0;background:#0f172288;z-index:40}
.scrim[hidden]{display:none}
@media(max-width:900px){
 .shell{display:block}
 .side{position:fixed;left:0;top:0;bottom:0;width:290px;max-width:85vw;max-height:none;background:var(--paper);padding:16px;transform:translateX(-105%);transition:transform .2s;z-index:50}
 .side.open{transform:none}
 .menu-btn{display:inline-flex}
}
@media(max-width:760px){html{scroll-padding-top:12px}}
@media(prefers-reduced-motion:reduce){.side{transition:none}}
/* ===== Phiên bản & màu sắc ===== */
.chips{display:flex;gap:8px;flex-wrap:wrap;margin:6px 0 12px}
.chip{padding:8px 14px;border:1px solid var(--line);border-radius:10px;background:#fff;font:inherit;font-size:14px;font-weight:600;cursor:pointer;color:var(--ink)}
.chip[aria-pressed=true]{border-color:var(--acc);box-shadow:0 0 0 2px var(--acc) inset;color:var(--acc)}
.chip:disabled{opacity:.45;text-decoration:line-through;cursor:not-allowed}
.lbl{font-size:14px;color:var(--mute);margin-top:10px}.lbl b{color:var(--ink)}
/* ===== Video sản phẩm ===== */
.main{overflow:hidden}
.main video,.main iframe{width:100%;height:100%;border:0;background:#000;display:block}
.thumbs .vth{position:relative;color:#fff;font-size:18px;display:grid;place-items:center}
.thumbs .vth::before{content:"";position:absolute;inset:0;background:#0009;border-radius:6px}
.thumbs .vth span{position:relative}
/* ===== Nền mờ sau ảnh sản phẩm (chỉnh độ che mờ trong products.js: photoBgMask) ===== */
.main{position:relative}
.main .bgl,.main .mask,.main .pic{position:absolute;inset:0}
.main .bgl{inset:-30px;background-size:cover;background-position:center;filter:blur(var(--blur,20px))}
.main .mask{background:var(--mask-color,#fff);opacity:var(--mask,.35)}
.main .pic{background-size:contain;background-position:center;background-repeat:no-repeat}
/* ===== Dải hình dưới banner (PROMOS trong products.js) ===== */
.promos{padding:16px 0}
.promo-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.promo{position:relative;display:block;border-radius:14px;overflow:hidden;background:#e9ecf3;border:1px solid var(--line)}
.promo .pimg{aspect-ratio:16/7;background-size:cover;background-position:center;transition:transform .25s}
.promo:hover .pimg{transform:scale(1.04)}
.promo .ptxt{position:absolute;left:0;right:0;bottom:0;padding:16px 16px 14px;color:#fff;background:linear-gradient(transparent,#000b);display:flex;flex-direction:column}
.promo .ptxt small{opacity:.85}
@media(prefers-reduced-motion:reduce){.promo .pimg{transition:none}}
/* ===== Hình nền sau thanh logo + ô tìm kiếm (SHOP.headerBg trong products.js) ===== */
header.top.has-bg::before,header.top.has-bg::after{content:"";position:absolute;inset:0}
header.top.has-bg::before{background:var(--hbg) var(--hpos,center)/cover no-repeat}
header.top.has-bg::after{background:var(--hmask-color,#fff);opacity:var(--hmask,.5)}
header.top.has-bg .bar{position:relative;z-index:1}
header.top.has-bg .logo{color:var(--hlogo,var(--ink))}
header.top.has-bg .search{background:#fff}
/* ===== Trang mở đầu toàn màn hình (SHOP.intro trong products.js); phần web trượt lên che trang này khi cuộn ===== */
.site{position:relative;background:var(--paper)}
.intro{position:sticky;top:0;z-index:0;height:100vh;height:100svh;min-height:520px;color:#fff;overflow:hidden;display:flex;flex-direction:column;background:linear-gradient(125deg,#0d0d0f 0%,#4a4a4f 48%,#0d0d0f 100%)}
.intro[hidden]{display:none}
.intro::before{content:"";position:absolute;inset:0;background:var(--ibg,none) center/cover no-repeat}
.intro::after{content:"";position:absolute;inset:0;background:var(--imask-color,#000);opacity:var(--imask,.45)}
.intro>*{position:relative;z-index:1}
.inav{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:20px;padding:22px clamp(20px,6vw,90px)}
.ilogo{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.04em}
.ilogo img{height:56px;width:auto}
.inav nav{display:flex;gap:28px;grid-column:2;justify-content:center}
.inav nav a{font-size:13px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:#e8e8e8}
.inav nav a:hover{color:#fff;text-decoration:underline}
.ibody{margin-top:auto;margin-bottom:clamp(40px,10vh,110px);padding:0 clamp(20px,6vw,90px)}
.ieye{font-size:12px;letter-spacing:.32em;text-transform:uppercase;color:#bdbdbd;margin:0 0 18px;font-weight:600}
.ibody h1{font-size:clamp(40px,8.5vw,112px);line-height:1.12;letter-spacing:-.025em;text-transform:uppercase;font-weight:800;margin:0 0 24px}
.itxt{white-space:pre-line;max-width:520px;color:#cfcfcf;margin:0 0 30px;font-size:17px;line-height:1.6}
.iact{display:flex;gap:14px;flex-wrap:wrap}
.ibtn{display:inline-block;padding:16px 28px;border:1px solid #ffffff88;color:#fff;font-size:13px;font-weight:700;letter-spacing:.16em;text-transform:uppercase}
.ibtn:hover{background:#fff;color:#111}
.ibtn.solid{background:#fff;color:#111;border-color:#fff}
.ibtn.solid:hover{background:#e6e6e6}
.iscroll{position:absolute;right:clamp(14px,3vw,40px);bottom:28px;display:flex;flex-direction:column;align-items:center;gap:12px;font-size:11px;letter-spacing:.3em;text-transform:uppercase;color:#aaa}
.iscroll span{writing-mode:vertical-rl}
.iscroll i{width:1px;height:56px;background:#aaa}
@media(max-width:700px){.inav nav{display:none}.ilogo img{height:44px}.iscroll{display:none}}
/* ===== Logo thương hiệu (BRANDS trong products.js; img/logo/*.png) ===== */
.ibrands{display:flex;flex-wrap:wrap;align-items:center;gap:14px 38px;padding:0 clamp(70px,8vw,130px) 30px clamp(20px,6vw,90px)}
.intro.has-brands .ibody{margin-bottom:clamp(24px,5vh,48px)}
.brand img{height:var(--bh,80px);width:auto;max-width:calc(var(--bh,30px)*4.5);object-fit:contain;display:block}
.brand.mono img{filter:brightness(0) invert(1);opacity:.75}
.brand:hover img{opacity:1}
.brands{padding:26px 0 0}
.btitle{margin:0 0 10px;font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--mute)}
.brand-row{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:16px 44px;padding:20px;background:#fff;border:1px solid var(--line);border-radius:12px}
.brand-row .brand img{height:var(--bhs,34px);max-width:calc(var(--bhs,34px)*4.5)}
@media(max-width:700px){.ibrands{gap:12px 24px;padding-right:20px}.brand img{height:calc(var(--bh,30px)*.8)}}
/* ===== Không cho nội dung tràn ngang làm trang rộng hơn màn hình ===== */
body{overflow-x:clip}