/* NK Header – giao diện header + banner trang chủ theo phong cách CellphoneS (wp_nk).
   Toàn bộ selector được scope trong .nkh để không ảnh hưởng CSS cũ của vTshop. */

@font-face{font-family:NKInter;font-style:normal;font-weight:100 900;font-display:swap;src:url(fonts/inter-vietnamese.woff2) format("woff2");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}
@font-face{font-family:NKInter;font-style:normal;font-weight:100 900;font-display:swap;src:url(fonts/inter-latin.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}

.nkh{--nk-red:#00aced;--nk-red-d:#0090c9;--nk-red-l:#e3f6fd;--nk-blue:#2a4e9d;--nk-blue-l:#e4f0ff;--nk-text:#1d1d20;--nk-muted:#6b7280;--nk-line:#e5e7eb;--nk-soft:#f3f4f6;--nk-bg:#f7f7f9;--nk-r:12px;--nk-r-s:8px;--nk-w:1200px;--nk-font:NKInter,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;--nk-sh:0 1px 3px rgba(0,0,0,.06),0 8px 24px -12px rgba(0,0,0,.15);--nk-sh-s:0 1px 2px rgba(0,0,0,.06)}
.nkh,.nkh *,.nkh *::before,.nkh *::after{box-sizing:border-box}
.nkh{font-family:var(--nk-font);color:var(--nk-text);font-size:14px;line-height:1.5}
.nkh img,.nkh svg,.nkh video{max-width:100%;height:auto;display:block}
.nkh a{color:inherit;text-decoration:none}
.nkh ul{list-style:none;margin:0;padding:0}
.nkh button{border:0;background:none;padding:0;cursor:pointer;color:inherit;font:inherit}
.nkh .wrap{max-width:var(--nk-w);margin:0 auto;padding:0 12px}
.nkh .hide{display:none!important}
.nkh .screen-reader-text{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(1px,1px,1px,1px);white-space:nowrap}

/* ---------- Header ---------- */
.nkh-header{background:linear-gradient(90deg,#00aced 0%,#12b5f0 55%,#4fc9f5 100%);color:#fff;position:relative;z-index:60}
.nkh .topbar{font-size:12px;height:30px;display:flex;align-items:center;gap:22px;white-space:nowrap;overflow:hidden}
.nkh .topbar .usp{display:flex;gap:22px;flex:1;overflow:hidden}
.nkh .topbar span{display:inline-flex;align-items:center;gap:6px}
.nkh .topbar b{font-weight:600}
.nkh .topbar .links{display:flex;gap:18px}
.nkh .topbar a:hover{opacity:.85}
.nkh .topbar svg{width:14px;height:14px}
.nkh .mainbar{display:flex;align-items:center;gap:10px;height:64px}
.nkh .brand{display:flex;align-items:center;font-weight:800;font-size:24px;letter-spacing:-.03em;color:#fff;margin-right:8px;white-space:nowrap}
.nkh .brand img{max-height:44px;width:auto}
.nkh .hbtn{display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 14px;border-radius:10px;background:rgba(255,255,255,.18);color:#fff;font-weight:500;white-space:nowrap;border:0;cursor:pointer;transition:background .15s}
.nkh .hbtn:hover{background:rgba(255,255,255,.3)}
.nkh .hbtn svg{width:20px;height:20px;flex:none}
.nkh .hbtn .chev{width:14px;height:14px;opacity:.9}
.nkh .hsearch{flex:1;max-width:520px;position:relative}
.nkh .hsearch form{display:flex;align-items:center;background:#fff;border-radius:10px;height:42px;padding:0 8px 0 12px;color:var(--nk-text)}
.nkh .hsearch input{border:0!important;box-shadow:none!important;outline:0!important;padding:0 8px!important;background:transparent;height:100%;font-size:14px;width:100%;margin:0}
.nkh .hsearch svg{width:20px;height:20px;color:#555;flex:none}
.nkh .hsearch button{background:transparent;padding:6px;color:var(--nk-muted);height:auto}
.nkh .hsearch button:hover{background:var(--nk-soft);border-radius:6px}
.nkh .hright{margin-left:auto;display:flex;align-items:center;gap:8px}
.nkh .login-btn{background:rgba(255,255,255,.22)}
.nkh .nav-toggle,.nkh .search-toggle{display:none}
/* Mega menu */
.nkh .catmenu-wrap{position:relative}
.nkh .catmenu{display:none;position:absolute;left:0;top:calc(100% + 8px);width:820px;background:#fff;color:var(--nk-text);border-radius:var(--nk-r);box-shadow:var(--nk-sh);z-index:100;grid-template-columns:250px 1fr;overflow:hidden}
.nkh .catmenu-wrap.is-open .catmenu,.nkh .catmenu-wrap:hover .catmenu{display:grid}
.nkh .catmenu .cat-list{padding:8px 0;background:#fff;border-right:1px solid var(--nk-line);max-height:520px;overflow:auto}
.nkh .catmenu .cat-list li a{display:flex;align-items:center;gap:10px;padding:9px 14px;font-weight:500;font-size:13px}
.nkh .catmenu .cat-list li a img,.nkh .catmenu .cat-list li a svg{width:22px;height:22px;flex:none;object-fit:contain}
.nkh .catmenu .cat-list li a:hover,.nkh .catmenu .cat-list li.is-active a{background:var(--nk-red-l);color:var(--nk-red)}
.nkh .catmenu .cat-list .arrow{margin-left:auto;width:14px;height:14px;opacity:.5}
.nkh .catmenu .cat-panel{padding:18px 22px;max-height:520px;overflow:auto}
.nkh .catmenu .cat-panel.hide{display:none}
.nkh .catmenu .cat-panel h4{font-size:15px;margin:0 0 12px;color:var(--nk-red);font-weight:700}
.nkh .catmenu .cat-panel h4 a:hover{text-decoration:underline}
.nkh .catmenu .cat-panel .sub{display:grid;grid-template-columns:repeat(3,1fr);gap:6px 20px}
.nkh .catmenu .cat-panel .sub li{padding:3px 0;font-size:13px;color:#444}
.nkh .catmenu .cat-panel .sub li a:hover{color:var(--nk-red)}

@media (max-width:1000px){
 .nkh .topbar{display:none}
 .nkh .mainbar{height:56px;gap:8px;flex-wrap:wrap}
 .nkh .brand{font-size:20px}
 .nkh .hbtn .lbl{display:none}
 .nkh .hbtn{padding:0 10px;height:38px}
 .nkh .loc-btn,.nkh .hsearch,.nkh .cat-btn,.nkh .login-btn{display:none}
 .nkh .hright{gap:6px}
 .nkh .search-toggle{display:inline-flex}
 .nkh .nav-toggle{display:inline-flex}
 .nkh .hsearch.is-open{display:block;position:absolute;left:0;right:0;top:56px;max-width:none;padding:8px 12px 12px;background:var(--nk-red);z-index:70}
 .nkh .catmenu-wrap:hover .catmenu{display:none}
 .nkh .catmenu{position:fixed;inset:56px 0 0 0;width:auto;border-radius:0;grid-template-columns:1fr;box-shadow:none;overflow:auto}
 .nkh .catmenu-wrap.is-open .catmenu{display:block}
 .nkh .catmenu .cat-list{max-height:none;border:0}
 .nkh .catmenu .cat-panel{display:none}
}

/* ---------- Home: top area (banner) ---------- */
.nkh-home{background:var(--nk-bg);padding:12px 0}
.nkh .home-top{display:grid;grid-template-columns:210px minmax(0,1fr) 200px;gap:10px;align-items:start}
.nkh .side-cats{background:#fff;border-radius:var(--nk-r);box-shadow:var(--nk-sh-s);padding:6px 0}
.nkh .side-cats li a{display:flex;align-items:center;gap:10px;padding:9px 12px;font-size:13px;font-weight:600;border-radius:8px;margin:0 6px}
.nkh .side-cats li a:hover{background:var(--nk-red-l);color:var(--nk-red)}
.nkh .side-cats li a img,.nkh .side-cats li a svg{width:22px;height:22px;flex:none;object-fit:contain;color:var(--nk-red)}
.nkh .side-cats li a .txt{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.nkh .side-cats li a .arrow{margin-left:auto;width:14px;height:14px;opacity:.45;flex:none}
.nkh .hero{background:#fff;border-radius:var(--nk-r);box-shadow:var(--nk-sh-s);overflow:hidden}
.nkh .slider{position:relative;overflow:hidden}
.nkh .slider .track{display:flex;transition:transform .45s ease;will-change:transform}
.nkh .slider .slide{flex:0 0 100%;min-width:0}
.nkh .slider .slide img{width:100%;aspect-ratio:1035/449;object-fit:cover}
.nkh .slider .nav{position:absolute;top:50%;transform:translateY(-50%);width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.85);color:#333;box-shadow:var(--nk-sh-s);padding:0;display:inline-flex;align-items:center;justify-content:center;opacity:0;transition:opacity .2s}
.nkh .slider:hover .nav{opacity:1}
.nkh .slider .nav.prev{left:10px}
.nkh .slider .nav.next{right:10px}
.nkh .slider .nav svg{width:18px;height:18px}
.nkh .slider .dots{position:absolute;bottom:8px;left:0;right:0;display:flex;justify-content:center;gap:5px}
.nkh .slider .dots button{width:8px;height:8px;border-radius:4px;background:rgba(255,255,255,.6);padding:0;transition:width .2s}
.nkh .slider .dots button.is-active{width:22px;background:#fff}
.nkh .small-banners{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:10px}
.nkh .small-banners a{display:block;border-radius:10px;overflow:hidden;box-shadow:var(--nk-sh-s)}
.nkh .small-banners img{width:100%;aspect-ratio:689/299;object-fit:cover}
.nkh .right-col{display:flex;flex-direction:column;gap:10px}
.nkh .member-box{background:#fff;border-radius:var(--nk-r);box-shadow:var(--nk-sh-s);padding:12px}
.nkh .member-box .mb-top{display:flex;gap:10px;align-items:flex-start}
.nkh .member-box .mb-top img{width:44px;height:44px;border-radius:50%;flex:none;background:var(--nk-soft);object-fit:cover}
.nkh .member-box h4{font-size:13px;margin:0 0 4px;line-height:1.3}
.nkh .member-box p{font-size:12px;color:var(--nk-muted);margin:0 0 8px}
.nkh .member-box .mb-links{font-size:12px;font-weight:600}
.nkh .member-box .mb-links a{color:var(--nk-red)}
.nkh .promo-groups{background:#fff;border-radius:var(--nk-r);box-shadow:var(--nk-sh-s);padding:10px;display:flex;flex-direction:column;gap:10px}
.nkh .promo-group h5{margin:0 0 6px;font-size:12px;font-weight:600;text-align:center;background:var(--nk-soft);border-radius:6px;padding:5px 8px;color:#333}
.nkh .promo-group li{font-size:12px;padding:4px;display:flex;align-items:center;gap:6px}
.nkh .promo-group li svg,.nkh .promo-group li img{width:16px;height:16px;flex:none;color:var(--nk-red)}
.nkh .promo-group li a:hover{color:var(--nk-red)}
@media (max-width:1000px){
 .nkh .home-top{grid-template-columns:1fr}
 .nkh .side-cats,.nkh .right-col{display:none}
 .nkh .small-banners{grid-template-columns:1fr 1fr}
}

/* ---------- Vertical category rail + flyout (trang trong & trang chủ) ---------- */
.nkh-vcats{background:#fff;border-radius:var(--nk-r);box-shadow:var(--nk-sh-s);position:relative}
.nkh-vcats .vcats-head{display:flex;align-items:center;gap:8px;background:var(--nk-red);color:#fff;font-weight:700;font-size:15px;padding:12px 14px;border-radius:var(--nk-r) var(--nk-r) 0 0}
.nkh-vcats .vcats-head svg{width:20px;height:20px}
.nkh-vcats .side-cats{box-shadow:none;border-radius:0 0 var(--nk-r) var(--nk-r);padding:6px 0}
.nkh .side-cats.has-flyout{position:relative}
.nkh .side-cats.has-flyout>li{position:relative}
.nkh .side-cats .flyout{display:none;position:absolute;left:100%;top:-6px;min-width:520px;max-width:660px;min-height:calc(100% + 12px);background:#fff;border-radius:var(--nk-r);box-shadow:var(--nk-sh);padding:16px 18px;z-index:90;gap:18px}
.nkh .side-cats .flyout::before{content:"";position:absolute;left:-12px;top:0;width:12px;height:100%}
.nkh .side-cats.has-flyout>li:hover>.flyout{display:flex}
.nkh .side-cats .flyout .flyout-main{flex:1;min-width:0}
.nkh .side-cats .flyout h4{font-size:15px;color:var(--nk-red);margin:0 0 10px;font-weight:700}
.nkh .side-cats .flyout h4 a:hover{text-decoration:underline}
.nkh .side-cats .flyout .sub{display:grid;grid-template-columns:repeat(2,1fr);gap:4px 18px;margin:0;padding:0}
.nkh .side-cats .flyout .sub li{padding:3px 0;font-size:13px;color:#444}
.nkh .side-cats .flyout .sub li a{display:block}
.nkh .side-cats .flyout .sub li a:hover{color:var(--nk-red)}
.nkh .side-cats .flyout .flyout-banners{width:180px;flex:none;display:flex;flex-direction:column;gap:8px}
.nkh .side-cats .flyout .flyout-banners a{display:block;border-radius:8px;overflow:hidden}
.nkh .side-cats .flyout .flyout-banners img{width:100%}
@media (max-width:1000px){.nkh .side-cats .flyout{display:none!important}}