/* Layout: workbench — header strip, split hero with a spec-label card, filterable stock grid, repair price ledger, contact; floating call/Zalo dock */
:root{
  /* Bảng màu sáng, xanh da trời. Trang luôn sáng, kể cả khi máy khách bật chế độ tối. */
  color-scheme:light;
  --bg:#F2F8FE; --surface:#FFFFFF; --ink:#0F2233; --muted:#55687A; --line:#D3E3F2;
  --accent:#0A78C2; --accent-ink:#FFFFFF; --sky:#38AEEB; --tag:#FFD25C; --tag-ink:#3A2800; --soft:#E4F1FC;
  --good:#16804A; --warn:#B4520A;
  /* Một họ chữ Be Vietnam Pro (thiết kế riêng cho tiếng Việt), phân cấp bằng độ đậm */
  --f-display:"Be Vietnam Pro", system-ui, -apple-system, "Segoe UI", sans-serif;
  --f-body:"Be Vietnam Pro", system-ui, -apple-system, "Segoe UI", sans-serif;
  --f-mono:"Be Vietnam Pro", system-ui, -apple-system, "Segoe UI", sans-serif;
}
*{box-sizing:border-box}
body{background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:15px;line-height:1.6;padding-inline:16px}
.wrap{max-width:1120px;margin:0 auto}
h1,h2,h3{font-family:var(--f-display);line-height:1.15;text-wrap:balance;margin:0}
a{color:var(--accent)}
button,input,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.eyebrow{font-family:var(--f-mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}

/* header */
header.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:var(--bg);border-bottom:1px solid var(--line);margin-inline:-16px;padding:10px 16px}
header.top .wrap{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.brand{font-family:var(--f-display);font-weight:800;font-size:20px;display:flex;align-items:center;gap:8px;text-decoration:none;color:var(--ink)}
.brand svg{color:var(--accent)}
nav{display:flex;gap:4px;margin-left:auto;flex-wrap:wrap}
nav a{text-decoration:none;color:var(--ink);padding:6px 12px;border-radius:6px;font-weight:500}
nav a:hover{background:var(--soft)}

/* hero */
.hero{display:grid;grid-template-columns:1.2fr 1fr;gap:40px;align-items:center;padding-block:48px 40px}
.hero h1{font-size:clamp(34px,5.4vw,58px);font-weight:800;letter-spacing:-.02em}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero p.lead{font-size:17px;color:var(--muted);max-width:52ch;margin:16px 0 24px}
.cta{display:flex;gap:10px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 18px;border-radius:8px;border:1px solid var(--line);background:var(--surface);font-weight:600;text-decoration:none;color:var(--ink);cursor:pointer}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.btn:hover{filter:brightness(1.05)}
.promises{display:flex;gap:20px;flex-wrap:wrap;margin-top:28px;font-size:14px}
.promises div{display:flex;flex-direction:column}
.promises b{font-family:var(--f-mono);font-size:20px}
.promises span{color:var(--muted)}

/* spec label card in hero */
.label-card{background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:20px 22px;font-family:var(--f-mono);font-size:13px;position:relative;transform:rotate(1.2deg);box-shadow:0 18px 40px -24px rgba(0,0,0,.35)}
.label-card .hole{position:absolute;top:14px;right:16px;width:14px;height:14px;border-radius:50%;border:2px solid var(--line)}
.label-card h3{font-family:var(--f-display);font-size:22px;margin-bottom:10px}
.label-card dl{display:grid;grid-template-columns:auto 1fr;gap:4px 14px;margin:0}
.label-card dt{color:var(--muted)}
.label-card dd{margin:0}
.label-card .price{margin-top:14px;display:flex;justify-content:space-between;align-items:baseline;border-top:1px dashed var(--line);padding-top:12px}
.label-card .price b{font-size:22px}
.sticker{display:inline-block;background:var(--tag);color:var(--tag-ink);font-family:var(--f-mono);font-weight:600;font-size:12px;padding:2px 8px;border-radius:4px}

section{padding-block:40px}
.sec-head{display:flex;justify-content:space-between;align-items:end;gap:16px;flex-wrap:wrap;margin-bottom:20px}
.sec-head h2{font-size:clamp(26px,3.4vw,36px);font-weight:700}

/* filters */
.filters{display:grid;grid-template-columns:2fr repeat(4,1fr);gap:10px;margin-bottom:18px}
.filters label{display:flex;flex-direction:column;gap:4px;font-size:12px;color:var(--muted);min-width:0}
.filters input,.filters select{padding:9px 10px;border:1px solid var(--line);border-radius:8px;background:var(--surface);width:100%}
.chips{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:18px}
.chip{border:1px solid var(--line);background:var(--surface);padding:5px 12px;border-radius:999px;cursor:pointer;font-size:14px}
.chip[aria-pressed="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.count{font-family:var(--f-mono);font-size:13px;color:var(--muted)}

/* product grid */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:10px;overflow:hidden;display:flex;flex-direction:column;cursor:pointer;text-align:left;padding:0}
.card:hover{border-color:var(--accent)}
.thumb{aspect-ratio:16/10;max-width:100%;background:var(--soft);display:grid;place-items:center;position:relative}
.thumb svg{width:58%;color:var(--muted)}
.thumb .grade{position:absolute;top:10px;left:10px}
.card .body{padding:14px 16px 16px;display:flex;flex-direction:column;gap:8px;flex:1}
.card h3{font-size:17px;font-weight:700}
.specs{font-family:var(--f-mono);font-size:12.5px;color:var(--muted);display:flex;flex-wrap:wrap;gap:4px 10px}
.card .foot{margin-top:auto;display:flex;justify-content:space-between;align-items:baseline;gap:8px}
.price-now{font-family:var(--f-mono);font-weight:600;font-size:18px;font-variant-numeric:tabular-nums}
.price-old{font-family:var(--f-mono);font-size:12.5px;color:var(--muted);text-decoration:line-through}
.wty{font-size:12.5px;color:var(--good);font-weight:500}
.empty{padding:40px;text-align:center;color:var(--muted);border:1px dashed var(--line);border-radius:10px}

/* repair */
.repair{display:grid;grid-template-columns:1fr 2fr;gap:32px;align-items:start}
.repair-intro p{color:var(--muted)}
.steps{list-style:none;padding:0;margin:20px 0 0;display:grid;gap:12px;counter-reset:s}
.steps li{display:grid;grid-template-columns:28px 1fr;gap:10px;counter-increment:s}
.steps li::before{content:counter(s);font-family:var(--f-mono);font-weight:600;width:26px;height:26px;border-radius:50%;background:var(--soft);display:grid;place-items:center;font-size:13px}
.tabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:12px}
.ledger-wrap{background:var(--surface);border:1px solid var(--line);border-radius:10px;overflow-x:auto}
table{width:100%;border-collapse:collapse;min-width:520px}
th,td{padding:11px 16px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
th{font-family:var(--f-mono);font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);font-weight:400}
td.num{font-family:var(--f-mono);font-variant-numeric:tabular-nums;white-space:nowrap}
td small{display:block;color:var(--muted);font-size:13px}
tr:last-child td{border-bottom:0}
.note{font-size:13px;color:var(--muted);margin-top:10px}

/* contact */
.contact{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.c-item{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:18px}
.c-item .v{font-family:var(--f-mono);font-size:16px;font-weight:600;word-break:break-word;margin:4px 0 10px}
.copy{font-size:13px;padding:6px 10px}
footer{border-top:1px solid var(--line);padding-block:28px 96px;color:var(--muted);font-size:13px;margin-top:20px;background:var(--surface);margin-inline:-16px;padding-inline:16px}
.foot-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:24px;margin-bottom:20px}
.foot-grid > div{display:flex;flex-direction:column;gap:4px;min-width:0}
.foot-name{font-family:var(--f-display);font-weight:700;font-size:17px;color:var(--ink);text-transform:uppercase;letter-spacing:.01em}
.foot-grid b,.foot-grid .mono{color:var(--ink)}
.bank-no{font-family:var(--f-mono);font-size:18px;font-weight:600;color:var(--ink);letter-spacing:.04em;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.bank-note{font-size:12px;color:var(--warn)}
.foot-copy{border-top:1px dashed var(--line);padding-top:14px}
@media (max-width:860px){.foot-grid{grid-template-columns:1fr}}

/* dock */
.dock{position:fixed;right:16px;bottom:calc(16px + env(safe-area-inset-bottom,0px));display:flex;flex-direction:column;gap:10px;z-index:30}
.dock a{width:54px;height:54px;border-radius:50%;display:grid;place-items:center;text-decoration:none;font-weight:700;font-size:13px;box-shadow:0 8px 20px -6px rgba(0,0,0,.4)}
.dock .call{background:var(--accent);color:var(--accent-ink)}
.dock .zalo{background:#0068FF;color:#FFFFFF}
@media (prefers-reduced-motion:no-preference){.dock .call{animation:ring 2.6s ease-in-out infinite}}
@keyframes ring{0%,80%,100%{transform:none}84%{transform:rotate(-12deg)}88%{transform:rotate(12deg)}92%{transform:rotate(-8deg)}}

/* modal */
.overlay{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:40;display:grid;place-items:center;padding:16px}
.modal{background:var(--surface);border-radius:12px;max-width:560px;width:100%;max-height:90vh;overflow:auto;padding:24px}
.modal header{display:flex;justify-content:space-between;gap:12px;align-items:start;margin-bottom:12px}
.modal h3{font-size:24px}
.x{border:0;background:var(--soft);width:34px;height:34px;border-radius:50%;cursor:pointer;font-size:18px;flex:none}
.modal dl{display:grid;grid-template-columns:130px 1fr;gap:6px 14px;font-size:14px;margin:12px 0}
.modal dt{color:var(--muted)}
.modal dd{margin:0;font-family:var(--f-mono);font-size:13.5px}
.toast{position:fixed;left:50%;bottom:calc(24px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:8px 16px;border-radius:8px;z-index:50;font-size:14px}

@media (max-width:860px){
  .hero,.repair{grid-template-columns:1fr}
  .label-card{transform:none;max-width:420px}
  .filters{grid-template-columns:1fr 1fr}
  .filters label:first-child{grid-column:1/-1}
  .contact{grid-template-columns:1fr}
  nav{display:none}
}

/* hero card filled from newest laptop */
.label-card:empty{display:none}

/* admin */
.adm-fab{position:fixed;left:16px;bottom:calc(16px + env(safe-area-inset-bottom,0px));z-index:30;display:inline-flex;align-items:center;gap:8px;padding:12px 16px;border-radius:999px;border:0;background:var(--ink);color:var(--bg);font-weight:600;cursor:pointer;box-shadow:0 8px 20px -6px rgba(0,0,0,.4)}
.adm-fab .dot{width:8px;height:8px;border-radius:50%;background:var(--tag)}
.adm-wrap{position:fixed;inset:0;z-index:45;background:rgba(0,0,0,.45);display:flex;justify-content:flex-end}
.adm{background:var(--bg);width:min(760px,100%);height:100%;display:flex;flex-direction:column;box-shadow:-20px 0 40px -20px rgba(0,0,0,.4)}
.adm-head{display:flex;align-items:center;gap:12px;padding:calc(14px + env(safe-area-inset-top,0px)) 20px 12px;border-bottom:1px solid var(--line);background:var(--surface)}
.adm-head h2{font-size:22px}
.adm-head .x{margin-left:auto}
.adm-status{font-size:13px;color:var(--warn);font-weight:500}
.adm-tabs{padding:12px 20px 0;margin:0}
.adm-body{flex:1;overflow:auto;padding:16px 20px 24px;display:flex;flex-direction:column;gap:14px}
.adm-foot{display:flex;gap:10px;justify-content:flex-end;flex-wrap:wrap;padding:12px 20px calc(12px + env(safe-area-inset-bottom,0px));border-top:1px solid var(--line);background:var(--surface)}
.adm-foot .msg{margin-right:auto;font-size:13px;color:var(--muted);align-self:center;min-width:0}
.adm-foot .msg.err{color:var(--warn)}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn.sm{padding:6px 12px;font-size:13px}
.btn.danger{color:var(--warn);border-color:var(--warn)}
.btn.danger.armed{background:var(--warn);color:var(--surface)}
.fgrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.fgrid .full{grid-column:1/-1}
.field{display:flex;flex-direction:column;gap:4px;font-size:13px;color:var(--muted);min-width:0}
.field input{padding:9px 10px;border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--ink);width:100%}
.field input[aria-invalid="true"]{border-color:var(--warn)}
.hint{font-size:12px;color:var(--muted)}
.checks{display:flex;gap:14px;flex-wrap:wrap;color:var(--ink);font-size:14px}
.checks label{display:flex;gap:6px;align-items:center}
.alist{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:10px;background:var(--surface);overflow:hidden}
.arow{display:grid;grid-template-columns:minmax(0,1fr) auto auto;gap:10px;align-items:center;padding:10px 14px;border-bottom:1px solid var(--line)}
.arow:last-child{border-bottom:0}
.arow .nm{font-weight:600;overflow-wrap:anywhere}
.arow .nm small{display:block;font-weight:400;color:var(--muted);font-family:var(--f-mono);font-size:12px}
.arow .acts{display:flex;gap:6px}
.toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.toolbar .count{margin-left:auto}
.cat{border:1px solid var(--line);border-radius:10px;background:var(--surface);padding:14px;display:flex;flex-direction:column;gap:10px}
.cat-head{display:flex;gap:8px;align-items:end}
.cat-head .field{flex:1}
.rrow{display:grid;grid-template-columns:2fr 2fr 1fr 1fr 1fr auto;gap:6px;align-items:end;padding-top:10px;border-top:1px dashed var(--line)}
.rrow .field input{padding:7px 8px;font-size:14px}
@media (max-width:640px){
  .fgrid{grid-template-columns:1fr}
  .rrow{grid-template-columns:1fr 1fr}
  .rrow .field:first-child,.rrow .field:nth-child(2){grid-column:1/-1}
  .arow{grid-template-columns:minmax(0,1fr)}
}

/* trang khách: thanh báo dữ liệu mẫu */
.demo-bar{background:var(--tag);color:var(--tag-ink);font-size:13px;text-align:center;padding:6px 16px;margin-inline:-16px}

/* trang quản lý */
.adm-page{min-height:100vh}
.adm-page .adm{width:100%;max-width:900px;margin:0 auto;height:auto;min-height:100vh;box-shadow:none;border-inline:1px solid var(--line);margin-inline:auto}
.adm-page .adm-head{flex-wrap:wrap;position:sticky;top:0;z-index:5}
.adm-page .adm-head .x{display:none}
.adm-page .adm-head .who{margin-left:auto;font-size:13px;color:var(--muted);font-family:var(--f-mono);overflow-wrap:anywhere;min-width:0}
.adm-page .adm-foot{position:sticky;bottom:0}
.login{max-width:400px;margin:0 auto;padding-block:12vh 40px;display:flex;flex-direction:column;gap:12px}
.login h1{font-size:34px}
.login form{display:flex;flex-direction:column;gap:12px;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:20px}
.login .btn{justify-content:center}
.linkbtn{background:none;border:0;color:var(--accent);cursor:pointer;padding:4px;align-self:center;text-decoration:underline}
.login .msg{margin:0;font-size:14px;color:var(--warn);min-height:1.2em}
.login .back{font-size:14px}
.login code{font-family:var(--f-mono);background:var(--soft);padding:1px 6px;border-radius:4px}

/* ảnh máy */
.thumb img.ph{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.thumb .grade{z-index:1}
.thumb .nphoto{position:absolute;right:10px;bottom:10px;z-index:1;font-family:var(--f-mono);font-size:11px;background:rgba(0,0,0,.55);color:#fff;padding:2px 7px;border-radius:4px}
.gallery{display:flex;flex-direction:column;gap:8px}
.gallery .main{aspect-ratio:4/3;max-width:100%;background:var(--soft);border-radius:8px;overflow:hidden;position:relative;display:grid;place-items:center}
.gallery .main img{width:100%;height:100%;object-fit:contain}
.gallery .strip{display:flex;gap:6px;overflow-x:auto;padding-bottom:2px}
.gallery .strip button{flex:none;width:64px;height:48px;padding:0;border:2px solid transparent;border-radius:6px;overflow:hidden;background:var(--soft);cursor:pointer}
.gallery .strip button[aria-current="true"]{border-color:var(--accent)}
.gallery .strip img{width:100%;height:100%;object-fit:cover;display:block}
.gallery .nav{position:absolute;top:50%;transform:translateY(-50%);width:36px;height:36px;border-radius:50%;border:0;background:rgba(0,0,0,.5);color:#fff;font-size:20px;cursor:pointer;z-index:1}
.gallery .nav.prev{left:8px}.gallery .nav.next{right:8px}

/* quản lý ảnh trong trang quản lý */
.pgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:10px}
.pitem{position:relative;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:var(--soft);aspect-ratio:4/3}
.pitem img{width:100%;height:100%;object-fit:cover;display:block}
.pitem .cover{position:absolute;left:6px;top:6px}
.pitem .pacts{position:absolute;inset:auto 0 0 0;display:flex;gap:4px;padding:6px;background:linear-gradient(transparent,rgba(0,0,0,.6))}
.pitem .pacts button{flex:1;font-size:11px;padding:4px 2px;border-radius:5px;border:0;background:rgba(255,255,255,.92);color:#13201D;cursor:pointer}
.pitem .pacts button.armed{background:var(--warn);color:#fff}
.pitem.busy{display:grid;place-items:center;font-size:12px;color:var(--muted)}
.padd{border:1.5px dashed var(--line);border-radius:8px;aspect-ratio:4/3;display:grid;place-items:center;text-align:center;font-size:13px;color:var(--muted);cursor:pointer;padding:6px}
.padd:hover{border-color:var(--accent);color:var(--accent)}
.padd input{position:absolute;width:1px;height:1px;opacity:0}
.arow .rthumb{width:56px;height:42px;border-radius:5px;object-fit:cover;background:var(--soft);flex:none}
.arow.wimg{grid-template-columns:56px minmax(0,1fr) auto auto}
@media (max-width:640px){.arow.wimg{grid-template-columns:56px minmax(0,1fr)}}
.gallery .main svg{width:40%;color:var(--muted)}
.checks label{white-space:nowrap;flex:none}

/* 2 số điện thoại */
.contact{grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.c-acts{display:flex;gap:6px;flex-wrap:wrap}
.dock-menu{position:absolute;right:0;bottom:calc(100% + 10px);width:min(270px,calc(100vw - 32px));background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:10px;display:flex;flex-direction:column;gap:6px;box-shadow:0 18px 40px -16px rgba(0,0,0,.45)}
.dock-menu .eyebrow{padding:2px 6px 4px}
.dock .dock-menu a.dm-item{width:auto;height:auto;border-radius:8px;display:grid;grid-template-columns:1fr auto;grid-template-rows:auto auto;gap:0 10px;place-items:start;text-align:left;padding:10px 12px;background:var(--soft);color:var(--ink);font-weight:400;font-size:13px;box-shadow:none}
.dm-item b{font-size:15px}
.dm-item span{color:var(--muted);grid-column:1}
.dm-item .dm-num{grid-column:2;grid-row:1/3;align-self:center;font-family:var(--f-mono);color:var(--ink);font-size:13px}
.dm-item:hover{outline:1px solid var(--accent)}

/* sáng hơn: đầu trang trắng, nền hero xanh nhạt */
header.top{background:var(--surface)}
.hero{position:relative}
.hero::before{content:"";position:absolute;top:0;bottom:0;left:calc(50% - 50vw);right:calc(50% - 50vw);background:linear-gradient(180deg,var(--soft),transparent);z-index:-1}
body{overflow-x:clip}
.hero h1 em{color:var(--accent)}
.label-card{border-top:4px solid var(--sky)}
.repair > *,.hero > *{min-width:0}

/* chữ: một họ Be Vietnam Pro, số canh đều */
body{font-variant-numeric:tabular-nums}
h1,h2,h3{font-weight:800;letter-spacing:-.015em}
.hero h1{font-weight:800;letter-spacing:-.025em;line-height:1.12}
.eyebrow{font-size:12px;font-weight:600;letter-spacing:.06em;color:var(--accent)}
.label-card,.specs,.modal dd,.label-card dd{font-size:14px}
.label-card dt,.modal dt{color:var(--muted)}
.c-item .v{font-size:17px;font-weight:700;line-height:1.45}
.price-now{font-weight:700}
.promises b{font-weight:700;font-size:22px}
.count,.th,th{letter-spacing:.04em}
.loc-hours{font-size:14px;color:var(--muted);margin:-4px 0 10px}
.c-mail{margin-top:10px;font-size:14px;color:var(--muted);overflow-wrap:anywhere}.c-mail a{color:var(--ink);text-decoration:none}.c-mail a:hover{color:var(--accent)}

/* dải liên hệ trên cùng */
.topbar{background:var(--accent);color:#fff;font-size:13px;margin-inline:-16px;padding:7px 16px}
.topbar .wrap{display:flex;gap:8px 22px;flex-wrap:wrap;align-items:center}
.tb-item{display:inline-flex;align-items:center;gap:6px;color:#fff;text-decoration:none;min-width:0;overflow-wrap:anywhere}
a.tb-item:hover{text-decoration:underline}
.tb-hours{margin-left:auto;opacity:.9}
@media (max-width:640px){.tb-hours{display:none}.topbar .wrap{justify-content:center}}