/* ============================================================================
   LAPTOP MINH CHÂU — TOKEN TẬP TRUNG (sửa 1 chỗ, gọi qua var())
   ============================================================================ */
:root{
  /* ===== MÀU CHÍNH (VÀNG – ĐEN) ===== */
  --navy:#161513;        /* đen chủ đạo: header tối, banner, footer */
  --navy-line:#333028;
  --amber:#FFC400;       /* vàng nhấn: CTA, viền hover, gạch chân */
  --amber-dark:#E6AF00;
  --amber-light:#FFDA4D;
  --teal:#1A1916;        /* "phụ" = đen: link, nút phụ */
  --teal-dark:#000000;
  --teal-tint:#FFF6CC;   /* nền vàng nhạt khi hover */
  --teal-line:#F0E3A0;

  /* ===== MÀU PHỤ / TRẠNG THÁI ===== */
  --price:#E11D2A;       /* giá - đỏ */
  --success:#0E7A3E;     /* like new */
  --info:#1D4ED8;        /* new hãng */
  --slate:#44413A;       /* đã sử dụng */
  --zalo:#0068FF;
  --zalo-dark:#0050C8;
  --zalo-ink:#0057D9;

  /* ===== NỀN & BỀ MẶT ===== */
  --bg:#F5F4F1;
  --surface:#FFFFFF;
  --surface-2:#F0EFEA;
  --surface-3:#EAE9E3;
  --line:#E5E3DC;
  --line-strong:#D0CDC3;

  /* ===== CHỮ ===== */
  --text:#161513;
  --text-soft:#57544C;
  --text-mut:#7A766C;
  --ink-2:#33302A;
  --on-dark:#C7C3B6;
  --on-dark-2:#E3DFD2;
  --hero-sub:#D2CEC2;

  /* ===== BO GÓC (đồng bộ: badge 6 · nút/input 8 · thẻ/modal 12 · pill tròn) ===== */
  --r-xs:6px; --r-sm:6px; --r:8px; --r-10:12px; --r-lg:12px; --r-pill:999px;

  /* ===== ĐỔ BÓNG ===== */
  --sh-sm:0 1px 4px rgba(15,42,58,.08);
  --sh:0 6px 20px rgba(15,42,58,.08);
  --sh-lg:0 8px 24px rgba(0,0,0,.3);
  --sh-float:0 6px 16px rgba(0,0,0,.2);

  /* ===== KHOẢNG CÁCH ===== */
  --sp-1:6px; --sp-2:10px; --sp-3:14px; --sp-4:20px; --sp-5:28px; --sp-6:44px;
  --gap:20px;

  /* ===== CHUYỂN ĐỘNG ===== */
  --ease:cubic-bezier(.22,1,.36,1);
  --t-fast:.15s; --t:.3s;

  /* ===== TYPO / LAYOUT ===== */
  --font:'Be Vietnam Pro',system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --maxw:1280px;
}

*{box-sizing:border-box;margin:0;padding:0}
[hidden]{display:none !important}
html{scroll-behavior:smooth;scroll-padding-top:120px}
body{font-family:var(--font);background:var(--bg);color:var(--navy);line-height:1.55;-webkit-font-smoothing:antialiased;overflow-x:hidden;min-height:100vh;position:relative}
a{color:var(--teal);text-decoration:none}a:hover{color:var(--teal-dark)}
button{font:inherit}
img{display:block;max-width:100%}
::selection{background:var(--amber);color:var(--navy)}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.clamp2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
input:focus-visible,button:focus-visible,a:focus-visible,select:focus-visible{outline:2px solid var(--amber);outline-offset:2px}

/* ============================================================================
   TOP BAR
   ============================================================================ */
.topbar{background:var(--navy);color:var(--on-dark-2);font-size:13px}
.topbar-inner{max-width:var(--maxw);margin:0 auto;padding:8px var(--sp-4);display:flex;flex-wrap:wrap;justify-content:space-between;gap:6px 20px}
.topbar .tb-right{display:flex;flex-wrap:wrap;gap:18px}
.topbar a{color:var(--amber-light);font-weight:600}
.topbar a:hover{color:#fff}

/* ============================================================================
   HEADER
   ============================================================================ */
.site-header{background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.header-inner{max-width:var(--maxw);margin:0 auto;padding:16px var(--sp-4);display:flex;flex-wrap:wrap;align-items:center;gap:16px 24px}
.logo{display:flex;align-items:center;gap:10px;color:var(--navy);flex:0 0 auto}
.logo-mark{width:44px;height:44px;border-radius:var(--r-10);background:var(--teal);display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:inset 0 -4px 0 var(--amber)}
.logo-text{display:flex;flex-direction:column;line-height:1.1}
.logo-text .lt-main{font-weight:900;font-size:20px;letter-spacing:-.01em}
.logo-text .lt-main span{color:var(--amber)}
.logo-text .lt-sub{font-size:12px;color:var(--text-soft);font-weight:500}
.search-form{flex:1 1 360px;min-width:0;display:flex;position:relative}
.search-suggest{position:absolute;top:calc(100% + 6px);left:0;right:0;z-index:70;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-10);box-shadow:var(--sh-lg);max-height:60vh;overflow-y:auto}
.search-suggest[hidden]{display:none}
.ss-item{display:flex;align-items:center;gap:10px;padding:9px 12px;cursor:pointer;border-bottom:1px solid var(--surface-2);color:var(--navy)}
.ss-item:last-child{border-bottom:none}
.ss-item:hover{background:var(--teal-tint)}
.ss-thumb{width:48px;height:48px;flex:0 0 auto;border-radius:var(--r);object-fit:cover;background:var(--surface-2)}
.ss-info{min-width:0;flex:1;display:flex;flex-direction:column;gap:2px}
.ss-name{font-size:13px;font-weight:600;line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ss-price{font-size:13px;font-weight:800;color:var(--price)}
.ss-more{padding:11px 12px;text-align:center;font-size:13px;font-weight:800;color:var(--teal);cursor:pointer;background:var(--surface-2)}
.ss-more:hover{background:var(--teal-tint)}
.ss-empty{padding:16px 14px;text-align:center;font-size:13.5px;color:var(--text-soft)}
.search-input{flex:1;min-width:0;height:46px;padding:0 16px;border:2px solid var(--amber);border-right:none;border-radius:var(--r) 0 0 var(--r);font:inherit;font-size:16px;color:var(--navy);background:var(--surface)}
.search-input::placeholder{color:var(--text-mut)}
.search-input:focus{outline:none}
.search-btn{height:46px;padding:0 20px;border:none;border-radius:0 var(--r) var(--r) 0;background:var(--teal);color:#fff;font-weight:700;font-size:14px;cursor:pointer;display:flex;align-items:center;gap:8px;transition:background var(--t-fast)}
.search-btn:hover{background:var(--teal-dark)}
.head-contact{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.phone-block{display:flex;align-items:center;gap:10px;color:var(--navy);padding:6px 4px;min-height:44px}
.phone-ic{width:40px;height:40px;border-radius:var(--r-pill);background:var(--teal-tint);color:var(--teal);display:flex;align-items:center;justify-content:center}
.phone-txt{display:flex;flex-direction:column;line-height:1.25}
.phone-txt .pt-label{font-size:12px;color:var(--text-soft)}
.phone-txt .pt-num{font-size:16px;font-weight:800;color:var(--teal)}
.cart-btn{position:relative;width:48px;height:48px;border-radius:var(--r);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--navy);background:var(--surface);cursor:pointer;transition:border-color var(--t-fast)}
.cart-btn:hover{border-color:var(--teal)}
.cart-badge{position:absolute;top:-6px;right:-6px;min-width:20px;height:20px;padding:0 5px;border-radius:var(--r-pill);background:var(--price);color:#fff;font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center}

/* NAV */
.mainnav{border-top:1px solid var(--surface-2);background:var(--surface)}
.mainnav-inner{max-width:var(--maxw);margin:0 auto;padding:0 var(--sp-4);display:flex;gap:28px;overflow-x:auto;white-space:nowrap;font-size:14px;font-weight:600}
.navlink{padding:12px 0;color:var(--navy);border-bottom:2px solid transparent;cursor:pointer}
.navlink:hover{color:var(--teal)}
.navlink.active{color:var(--teal);border-bottom-color:var(--amber)}

/* ============================================================================
   LAYOUT
   ============================================================================ */
.layout{max-width:var(--maxw);margin:0 auto;padding:16px var(--sp-4) 56px;display:flex;flex-direction:column;gap:var(--gap)}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-10)}

/* ===== HERO GRID ===== */
.hero-grid{display:grid;grid-template-columns:268px minmax(0,1fr) 270px;gap:12px}

/* Sidebar */
.sidebar{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-10);padding:8px 0;display:flex;flex-direction:column}
.side-title{padding:10px 16px;font-size:13px;font-weight:800;color:var(--text-soft);letter-spacing:.04em}
.side-title.mt{margin-top:8px;padding-top:12px;border-top:1px solid var(--surface-2)}
.side-item{display:flex;justify-content:space-between;align-items:center;gap:8px;width:100%;min-height:38px;padding:7px 14px;border:none;text-align:left;cursor:pointer;font-size:14px;font-weight:600;background:transparent;color:var(--navy);transition:background var(--t-fast),color var(--t-fast),box-shadow var(--t-fast)}
.side-item:hover{background:var(--teal-tint);color:var(--teal)}
.side-item.active{background:var(--teal-tint);color:var(--teal);box-shadow:inset 3px 0 0 var(--amber)}
.side-item .si-count{font-size:12px;color:var(--text-mut);font-weight:500}
.side-from{font-size:12px;font-weight:700;white-space:nowrap}
.side-left{display:flex;align-items:center;gap:10px;min-width:0}
.side-dot{width:14px;height:14px;border-radius:7px;flex:0 0 auto;border:1.5px solid #9AAAB5;background:var(--surface)}
.side-item.active .side-dot{border:4px solid var(--teal)}
.side-badge{font-size:11px;color:var(--ink-2);font-weight:600;background:var(--surface-2);border-radius:var(--r-pill);padding:2px 8px}
.side-help{margin:10px;margin-top:12px;padding:14px;border-radius:var(--r);background:var(--teal-tint);border:1px solid var(--teal-line);display:flex;flex-direction:column;gap:8px}
.side-help .sh-title{font-size:14px;font-weight:800;color:var(--navy)}
.side-help .sh-sub{font-size:12.5px;color:var(--slate);line-height:1.5}
.side-help .sh-actions{display:flex;flex-direction:column;gap:7px;margin-top:2px}
.side-help .sh-call{background:var(--teal);color:#fff;text-align:center;padding:9px;border-radius:var(--r);font-weight:800;font-size:13px}
.side-help .sh-call:hover{background:var(--teal-dark);color:#fff}
.side-help .sh-zalo{background:var(--zalo);color:#fff;text-align:center;padding:9px;border-radius:var(--r);font-weight:800;font-size:13px}
.side-help .sh-zalo:hover{background:var(--zalo-dark);color:#fff}

/* Hero banner */
.hero-banner{background:var(--navy);color:#fff;border-radius:var(--r-10);padding:40px;display:flex;flex-wrap:wrap;align-items:center;gap:28px;min-height:380px;overflow:hidden}
.hero-banner .hb-text{flex:1 1 320px;display:flex;flex-direction:column;gap:16px}
.hero-badge{align-self:flex-start;border:1px solid var(--amber);color:var(--amber-light);font-size:12px;font-weight:700;padding:6px 10px;border-radius:var(--r-xs);letter-spacing:.04em}
.hero-h1{font-size:44px;line-height:1.08;font-weight:900;letter-spacing:-.02em}
.hero-h1 span{color:var(--amber)}
.hero-p{font-size:15px;line-height:1.6;color:var(--hero-sub);max-width:420px}
.hero-cta-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:4px}
.btn-hero-1{background:var(--amber);color:var(--navy);padding:13px 22px;border-radius:var(--r);font-weight:800;font-size:14px;transition:background var(--t-fast)}
.btn-hero-1:hover{background:var(--amber-dark);color:var(--navy)}
.btn-hero-2{border:1.5px solid #5B7A8C;color:#fff;padding:12px 20px;border-radius:var(--r);font-weight:700;font-size:14px}
.btn-hero-2:hover{color:#fff;background:rgba(255,255,255,.08)}
.hero-pic{flex:0 1 340px;position:relative}
.hero-pic img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-10);border:3px solid #1F4257}
.hero-float{position:absolute;left:-12px;bottom:-14px;background:#fff;color:var(--navy);border-radius:var(--r);padding:10px 14px;box-shadow:var(--sh-lg);display:flex;flex-direction:column;gap:2px}
.hero-float .hf-name{font-size:12px;color:var(--text-soft);font-weight:600}
.hero-float .hf-price{font-size:18px;font-weight:800;color:var(--price)}

/* Right promos */
.hero-side{display:flex;flex-direction:column;gap:12px}
.promo{flex:1;text-align:left;cursor:pointer;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-10);overflow:hidden;display:flex;flex-direction:column;color:var(--navy);transition:border-color var(--t-fast)}
.promo:hover{border-color:var(--amber)}
.promo img{width:100%;flex:1 1 110px;min-height:110px;object-fit:cover}
.promo-body{padding:12px 14px;display:flex;flex-direction:column;gap:4px}
.promo-body .pb-title{font-size:15px;font-weight:800}
.promo-body .pb-sub{font-size:13px;color:var(--text-soft)}
.promo-body .pb-from{font-size:14px;font-weight:800;color:var(--price)}

/* ===== TRUST STRIP ===== */
.trust-grid{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-10);display:grid;grid-template-columns:repeat(4,minmax(0,1fr))}
.trust-item{padding:18px 20px;display:flex;gap:12px;align-items:center;border-right:1px solid var(--surface-2)}
.trust-item:last-child{border-right:none}
.trust-item svg{color:var(--amber);flex:0 0 auto}
.trust-item strong{font-size:14px}
.trust-item .ti-sub{font-size:13px;color:var(--text-soft)}
.trust-item .ti-txt{display:flex;flex-direction:column;gap:2px}

/* ===== PRODUCTS ===== */
.products{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-10);padding:20px;display:flex;flex-direction:column;gap:16px}
.products-head{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;border-bottom:2px solid var(--surface-2);padding-bottom:12px}
.products-title{font-size:22px;font-weight:900;letter-spacing:-.01em;display:flex;align-items:center;gap:10px}
.title-bar{width:6px;height:24px;background:var(--amber);border-radius:var(--r-xs)}
.products-tools{display:flex;align-items:center;gap:12px;font-size:14px;color:var(--text-soft)}
.sort-select{height:40px;padding:0 12px;border:1px solid var(--line-strong);border-radius:var(--r);font:inherit;font-size:14px;background:var(--surface);color:var(--navy);cursor:pointer}
.filters{display:flex;flex-direction:column;gap:10px}
.filter-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.filter-label{font-size:13px;font-weight:700;color:var(--text-soft);width:76px}
.chips-inline{display:flex;flex-wrap:wrap;gap:8px}
.chip{height:36px;padding:0 14px;border-radius:18px;font-size:13px;font-weight:600;cursor:pointer;background:var(--surface);color:var(--navy);border:1px solid var(--line-strong);transition:background var(--t-fast),color var(--t-fast),border-color var(--t-fast)}
.chip .chip-cnt{opacity:.7;font-weight:500}
.chip:hover{border-color:var(--teal);color:var(--teal)}
.chip.active{background:var(--teal-tint);color:var(--teal-dark);border:1.5px solid var(--amber)}

.pgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}
.pcard{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-10);overflow:hidden;display:flex;flex-direction:column;transition:box-shadow var(--t-fast),border-color var(--t-fast),transform var(--t-fast)}
.pcard:hover{border-color:var(--amber);box-shadow:var(--sh);transform:translateY(-3px)}
.pcard-media{display:block;position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--surface-3);cursor:pointer}
.pcard-img{width:100%;height:100%;object-fit:cover;transition:transform .25s}
.pcard:hover .pcard-img{transform:scale(1.04)}
.cond-badge{position:absolute;top:8px;left:8px;color:#fff;font-size:11px;font-weight:800;padding:4px 8px;border-radius:var(--r-xs);letter-spacing:.03em}
.cond-likenew{background:var(--success)}
.cond-new{background:var(--info)}
.cond-used{background:var(--slate)}
.pcard-body{padding:12px;display:flex;flex-direction:column;gap:8px;flex:1}
.pcard-cat{font-size:11px;font-weight:800;color:var(--teal);letter-spacing:.04em}
.pcard-name{font-size:15px;font-weight:700;line-height:1.35;min-height:40px}
.pcard-name a{color:var(--navy);cursor:pointer}
.pcard-name a:hover{color:var(--teal)}
.pcard-specs{display:flex;flex-wrap:wrap;gap:4px}
.spec{font-size:11.5px;background:var(--bg);color:var(--ink-2);padding:3px 7px;border-radius:var(--r-xs)}
.pcard-foot{margin-top:auto;display:flex;flex-direction:column;gap:2px;padding-top:4px}
.pcard-price{font-size:19px;font-weight:800;color:var(--price)}
.pcard-warranty{font-size:12px;color:var(--success);font-weight:600;display:flex;align-items:center;gap:4px}
.pcard-actions{display:flex;gap:6px}
.btn-detail{flex:1;height:40px;display:flex;align-items:center;justify-content:center;border:none;border-radius:var(--r);background:var(--amber);color:var(--navy);font-size:13px;font-weight:800;cursor:pointer;transition:background var(--t-fast)}
.btn-detail:hover{background:var(--amber-dark);color:var(--navy)}
.buy{flex:1;height:40px;border:none;border-radius:var(--r);background:var(--teal);color:#fff;font-size:13px;font-weight:800;cursor:pointer}
.zalo{height:40px;padding:0 14px;border:1.5px solid var(--zalo);color:var(--zalo-ink);border-radius:var(--r);font-size:13px;font-weight:800;display:flex;align-items:center;justify-content:center;transition:background var(--t-fast),color var(--t-fast)}
.zalo:hover{background:var(--zalo-dark);color:#fff;border-color:var(--zalo-dark)}
.zalo-lg{height:auto;padding:12px 20px;border-radius:var(--r)}
#sentinel{height:1px}
.grid-end{text-align:center;padding:22px;color:var(--text-mut);font-size:14px;font-weight:600}
.empty-box{padding:48px 20px;text-align:center;background:#F7FAFB;border:1px dashed var(--line-strong);border-radius:var(--r-10);display:flex;flex-direction:column;gap:8px;align-items:center}
.empty-box strong{font-size:16px}
.empty-box span{font-size:14px;color:var(--text-soft)}

/* ===== CONTACT BAND ===== */
.contact-band{background:var(--teal-tint);border:1px solid var(--teal-line);border-radius:var(--r-10);padding:28px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px}
.contact-band .cb-text{flex:1 1 360px;display:flex;flex-direction:column;gap:6px}
.contact-band h2{font-size:22px;font-weight:900}
.contact-band p{font-size:15px;color:var(--slate);line-height:1.55}
.contact-ctas{display:flex;flex-wrap:wrap;gap:10px}
.cb-call{background:var(--teal);color:#fff;padding:13px 22px;border-radius:var(--r);font-weight:800;font-size:14px}
.cb-call:hover{background:var(--teal-dark);color:#fff}
.cb-zalo{background:var(--zalo);color:#fff;padding:13px 22px;border-radius:var(--r);font-weight:800;font-size:14px}
.cb-zalo:hover{background:var(--zalo-dark);color:#fff}

/* ===== FOOTER ===== */
.site-footer{background:var(--navy);color:var(--on-dark)}
.footer-inner{max-width:var(--maxw);margin:0 auto;padding:44px var(--sp-4) 20px;display:flex;flex-direction:column;gap:32px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.foot-col{display:flex;flex-direction:column;gap:10px;font-size:14px}
.foot-brand{font-weight:900;font-size:20px;color:#fff}
.foot-brand span{color:var(--amber)}
.foot-desc{font-size:14px;line-height:1.65}
.foot-col h4{color:#fff;font-size:13px;letter-spacing:.06em;font-weight:800}
.site-footer a{color:var(--on-dark)}
.site-footer a:hover{color:#fff}
.foot-bottom{border-top:1px solid var(--navy-line);padding-top:16px;font-size:13px;color:var(--text-mut)}

/* ===== FLOATING CONTACT ===== */
.floating{position:fixed;right:16px;bottom:20px;display:flex;flex-direction:column;gap:10px;z-index:40}
.fab{width:52px;height:52px;border-radius:26px;color:#fff;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;box-shadow:var(--sh-float);transition:transform var(--t-fast)}
.fab:hover{transform:translateY(-3px);color:#fff}
.fab-zalo{background:var(--zalo)}
.fab-call{background:var(--price)}
.fab-top{background:var(--navy);cursor:pointer;border:none}

/* ===== TOAST ===== */
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%) translateY(20px);background:var(--navy);color:#fff;border-radius:var(--r);padding:12px 18px;font-size:14px;display:flex;align-items:center;gap:10px;box-shadow:0 8px 24px rgba(0,0,0,.25);z-index:60;max-width:calc(100% - 120px);opacity:0;pointer-events:none;transition:opacity var(--t),transform var(--t) var(--ease)}
.toast.show{opacity:1;transform:translateX(-50%)}
.toast svg{color:#7DD3A8;flex:0 0 auto}

/* reveal */
.reveal-up{opacity:0;transform:translateY(16px);animation:revealUp .6s var(--ease) forwards}
@keyframes revealUp{to{opacity:1;transform:none}}

/* skeleton */
.sk{background:linear-gradient(90deg,var(--surface-2) 25%,var(--line) 50%,var(--surface-2) 75%);background-size:200% 100%;animation:shimmer 1.3s infinite;border-radius:var(--r)}
@keyframes shimmer{to{background-position:-200% 0}}

/* ============================================================================
   MODAL CHI TIẾT  (giữ để xem cấu hình + ảnh phóng to)
   ============================================================================ */
.modal{position:fixed;inset:0;z-index:100;display:grid;place-items:center;padding:20px}
.modal[hidden]{display:none}
.modal-backdrop{position:absolute;inset:0;background:color-mix(in srgb,var(--navy) 55%,transparent);backdrop-filter:blur(4px);animation:fadeIn .25s ease}
.modal-card{position:relative;z-index:1;width:min(1040px,100%);max-height:90vh;overflow:auto;background:var(--surface);border-radius:var(--r-lg);box-shadow:var(--sh-lg);animation:modalIn .4s var(--ease)}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes modalIn{from{opacity:0;transform:translateY(24px) scale(.98)}to{opacity:1;transform:none}}
.modal-close{position:absolute;top:12px;right:12px;z-index:3;width:40px;height:40px;border:none;background:var(--surface-2);color:var(--navy);font-size:24px;line-height:1;cursor:pointer;display:grid;place-items:center;border-radius:var(--r-pill);transition:background var(--t-fast),color var(--t-fast)}
.modal-close:hover{background:var(--price);color:#fff}
.modal-body{display:grid;grid-template-columns:1.15fr 1fr}
.m-media{background:var(--surface-2);display:flex;align-items:center;justify-content:center;padding:22px;border-radius:var(--r-lg) 0 0 var(--r-lg);position:relative}
.m-media img{border:1px solid var(--line);border-radius:var(--r);width:100%;max-height:min(620px,78vh);object-fit:contain;cursor:zoom-in;transition:transform var(--t-fast) var(--ease)}
.m-zoom-badge{position:absolute;bottom:14px;right:14px;background:var(--navy);color:#fff;font-size:11px;font-weight:700;padding:6px 11px;border-radius:var(--r-pill);display:flex;align-items:center;gap:6px;pointer-events:none;opacity:.92}
.m-info{padding:var(--sp-5);display:flex;flex-direction:column;gap:var(--sp-3)}
.m-tags{display:flex;gap:7px;flex-wrap:wrap}
.m-tag{font-size:11px;font-weight:700;color:var(--teal);background:var(--teal-tint);padding:3px 9px;border-radius:var(--r-xs)}
.m-title{font-size:21px;font-weight:800;line-height:1.3;color:var(--navy)}
.m-price-row{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}
.m-price{font-size:30px;font-weight:800;color:var(--price)}
.m-note{font-size:12px;color:#fff;background:var(--success);padding:4px 11px;font-weight:700;border-radius:var(--r-xs)}
.m-section h5{font-size:12px;text-transform:uppercase;letter-spacing:.05em;color:var(--teal);margin-bottom:var(--sp-2);font-weight:800}
.m-specs{list-style:none;display:flex;flex-direction:column;gap:7px}
.m-specs li{display:flex;gap:9px;font-size:14px;color:var(--text-soft);align-items:flex-start}
.m-specs li::before{content:"▸";color:var(--amber);font-weight:900;flex-shrink:0}
.m-desc{font-size:14px;color:var(--text-soft);white-space:pre-line;line-height:1.7}
.m-cta{display:flex;gap:var(--sp-3);margin-top:6px;flex-wrap:wrap}
.m-cta .buy,.m-cta .zalo{height:44px}
.m-cta .buy{padding:0 22px;border-radius:var(--r);flex:0 0 auto}
.m-cta .zalo{padding:0 18px;border-radius:var(--r)}

/* Lightbox — xem ảnh rõ, to, chi tiết (mobile + PC) */
.lightbox{position:fixed;inset:0;z-index:200;display:grid;place-items:center;padding:16px;overflow:auto;-webkit-overflow-scrolling:touch;background:color-mix(in srgb,var(--navy) 88%,#000);backdrop-filter:blur(6px);animation:fadeIn .2s ease}
.lightbox[hidden]{display:none}
.lightbox img{max-width:96vw;max-height:94vh;object-fit:contain;border:3px solid #fff;border-radius:var(--r);box-shadow:var(--sh-lg);cursor:zoom-in;touch-action:pinch-zoom;transform-origin:center;animation:modalIn .35s var(--ease)}
.lightbox img.zoomed{max-width:none;max-height:none;width:auto;cursor:zoom-out}  /* bấm để xem full-size, cuộn để xem chi tiết */
.lightbox-close{position:fixed;top:14px;right:14px;z-index:2;width:46px;height:46px;border:2px solid #fff;background:rgba(0,0,0,.35);color:#fff;font-size:28px;cursor:pointer;display:grid;place-items:center;border-radius:var(--r-pill)}
.lightbox-close:hover{background:var(--amber);border-color:var(--amber);color:var(--navy)}
.lightbox-hint{position:fixed;bottom:14px;left:0;right:0;text-align:center;color:#fff;opacity:.85;font-size:12.5px;font-weight:600;pointer-events:none;padding:0 16px}

/* ============================================================================
   TRANG CHI TIẾT TĨNH (p/*.html)
   ============================================================================ */
.pd-crumb{max-width:1100px;margin:0 auto;padding:18px var(--sp-4);font-size:13px;color:var(--text-mut);display:flex;gap:8px;flex-wrap:wrap}
.pd-crumb a:hover{color:var(--teal)}
.pd-crumb .sep{color:var(--line-strong)}
.product-page{max-width:1100px;margin:0 auto;padding:0 var(--sp-4) 70px}
.pd-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:start}
.pd-media{position:relative;border:1px solid var(--line);border-radius:var(--r-lg);background:var(--surface);padding:20px;display:flex;align-items:center;justify-content:center;box-shadow:var(--sh)}
.pd-media img{border:1px solid var(--line);border-radius:var(--r);width:100%;max-height:min(620px,72vh);object-fit:contain;cursor:zoom-in;transition:transform var(--t-fast) var(--ease)}
.pd-media img:hover{transform:scale(1.01)}
.pd-zoom-badge{position:absolute;bottom:14px;right:14px;background:var(--navy);color:#fff;font-size:11px;font-weight:700;padding:6px 11px;border-radius:var(--r-pill);opacity:.92;pointer-events:none}
.pd-info{display:flex;flex-direction:column;gap:18px}
.pd-tags{display:flex;gap:7px;flex-wrap:wrap}
.pd-tags .m-tag{font-size:12px}
.pd-title{font-size:clamp(22px,3.5vw,30px);font-weight:800;line-height:1.25;color:var(--navy)}
.pd-price-row{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}
.pd-price{font-size:36px;font-weight:800;color:var(--price)}
.pd-section h3{font-size:13px;text-transform:uppercase;letter-spacing:.05em;color:var(--teal);margin-bottom:12px;font-weight:800}
.pd-specs{list-style:none;display:flex;flex-direction:column;gap:9px}
.pd-specs li{display:flex;gap:10px;font-size:15px;color:var(--text-soft);align-items:flex-start}
.pd-specs li::before{content:"▸";color:var(--amber);font-weight:900;flex-shrink:0}
.pd-desc{font-size:15px;color:var(--text-soft);white-space:pre-line;line-height:1.75}
.pd-cta{display:flex;gap:var(--sp-3);flex-wrap:wrap;margin-top:6px}
.related{margin-top:60px}
.related h2{font-size:20px;font-weight:800;margin-bottom:20px;border-left:5px solid var(--amber);padding-left:12px;color:var(--navy)}
.related-grid{display:grid;gap:18px;grid-template-columns:repeat(auto-fill,minmax(220px,1fr))}
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:15px;padding:12px 22px;border-radius:var(--r);cursor:pointer;border:2px solid transparent}
.btn-accent{background:var(--amber);color:var(--navy)}
.btn-accent:hover{background:var(--amber-dark);color:var(--navy)}
.btn-outline{background:transparent;color:var(--teal-dark);border-color:var(--line-strong)}
.btn-outline:hover{border-color:var(--teal);color:var(--teal);background:var(--teal-tint)}

/* ============================================================================
   RESPONSIVE (bám theo mẫu)
   ============================================================================ */
/* Tab lọc danh mục trong khu LAPTOP ĐANG BÁN — tab đang chọn nổi bật rõ */
.cat-tabs{display:flex;gap:8px;overflow-x:auto;padding:2px 0 4px;scrollbar-width:none;-webkit-overflow-scrolling:touch}
.cat-tabs::-webkit-scrollbar{display:none}
.cat-tab{flex:0 0 auto;display:inline-flex;align-items:center;padding:9px 16px;border-radius:var(--r-pill);background:var(--surface-2);border:1.5px solid transparent;font:inherit;font-size:13.5px;font-weight:700;color:var(--text-soft);white-space:nowrap;cursor:pointer;transition:color var(--t-fast),background var(--t-fast),border-color var(--t-fast),box-shadow var(--t-fast)}
.cat-tab:hover{color:var(--navy);background:var(--teal-tint);border-color:var(--teal-line)}
.cat-tab .ct-cnt{opacity:.6;font-weight:600;font-size:12px;margin-left:5px}
.cat-tab.active{background:var(--navy);color:var(--amber);border-color:var(--navy);box-shadow:0 4px 12px rgba(0,0,0,.22)}
.cat-tab.active .ct-cnt{color:var(--amber);opacity:.9}

@media (max-width:1180px){
  .hero-grid{grid-template-columns:230px minmax(0,1fr)}
  .hero-side{grid-column:1 / -1;flex-direction:row}
  .hero-side .promo{flex:1 1 0}
}
@media (max-width:860px){
  .hero-grid{grid-template-columns:minmax(0,1fr)}
  .sidebar{display:none}
  .trust-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .trust-item:nth-child(2){border-right:none}
  .foot-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .hero-banner{padding:26px;min-height:0;gap:20px}
  .hero-h1{font-size:34px}
  .hero-pic{flex:1 1 100%;order:2}
  .hero-float{left:12px;bottom:12px}
  .modal-body{grid-template-columns:1fr}
  .m-media{border-radius:var(--r-lg) var(--r-lg) 0 0;padding:16px}
  .m-media img{max-height:60vh}
  .pd-grid{grid-template-columns:1fr}
}
@media (max-width:640px){
  :root{--maxw:100%}
  .topbar-inner{font-size:12px;padding:7px 14px;gap:4px 14px}
  .topbar .tb-right{gap:10px}
  .header-inner{padding:12px 14px;gap:10px 12px}
  .logo-mark{width:40px;height:40px}
  .logo-text .lt-main{font-size:18px}
  .search-form{flex:1 1 100%;order:3}
  .head-contact{display:none}
  /* Mobile: logo cuộn đi (như topbar), chỉ tìm kiếm + menu dính lại */
  .logo{height:40px}
  .site-header{top:-52px}
  .mainnav-inner{padding:0 14px;gap:20px}
  .layout{padding:12px 14px 40px;gap:14px}
  .hero-banner{padding:22px}
  .hero-h1{font-size:30px}
  .hero-cta-row .btn-hero-1,.hero-cta-row .btn-hero-2{flex:1 1 auto;text-align:center;justify-content:center}
  .hero-side{flex-direction:column}
  .products{padding:16px 14px}
  .products-title{font-size:19px}
  .products-head{gap:8px}
  .pgrid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
  .pcard-body{padding:10px;gap:6px}
  .pcard-name{font-size:13.5px;min-height:38px}
  .pcard-price{font-size:17px}
  .pcard-specs{gap:3px}
  .spec{font-size:10.5px;padding:2px 6px}
  .pcard-actions{flex-direction:column;gap:6px}
  .pcard-actions .zalo{width:100%}
  .trust-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .trust-item{padding:14px}
  .trust-item svg{width:28px;height:28px}
  .contact-band{padding:20px}
  .contact-ctas{width:100%}
  .contact-ctas a{flex:1 1 auto;text-align:center}
  .foot-grid{grid-template-columns:minmax(0,1fr)}
  .footer-inner{padding:32px 16px 20px;gap:24px}
  .floating{right:12px;bottom:14px;gap:8px}
  .fab{width:48px;height:48px}
  .m-info{padding:18px 16px}
  .m-price{font-size:26px}
  .pd-media{padding:14px}
}
@media (max-width:420px){
  .hide-sm{display:none}
  .lt-sub{display:none}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
}