/* VILINK X — Tra cứu bảo hành. CSS scope trong .vlw-box, không xung đột theme. Giao diện sáng. */
.vlw-box{
  --ink:#0f1e33; --slate:#334155; --muted:#64748b; --line:#e8edf3;
  --accent:#2563eb; --accent-d:#1d4ed8; --accent-soft:#eef4ff;
  --ok:#15803d; --ok-bg:#f0fdf5; --ok-bd:#bbf7d0;
  --bad:#b91c1c; --bad-bg:#fef2f2; --bad-bd:#fecaca;
  --neu:#b45309; --neu-bg:#fffbeb; --neu-bd:#fde68a;
  max-width:640px; margin:0 auto; color:var(--ink); line-height:1.55;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  background:#fff; border:1px solid var(--line); border-radius:18px; overflow:hidden;
  box-shadow:0 12px 34px -16px rgba(15,30,51,.22),0 2px 6px rgba(15,30,51,.05);
}
.vlw-box *{box-sizing:border-box}
.vlw-box::before{content:"";display:block;height:4px;background:linear-gradient(90deg,#2563eb,#38bdf8)}

/* ===== Full-page (tràn viền, căn giữa) — bật trên trang tra cứu ===== */
.vlw-page{position:relative;left:50%;right:50%;width:100vw;margin-left:-50vw;margin-right:-50vw;
  background:radial-gradient(900px 380px at 50% -8%,rgba(37,99,235,.10),transparent 60%),linear-gradient(180deg,#eef4ff,#f6f9fd 46%,#ffffff);
  padding:clamp(20px,6vw,64px) clamp(14px,4vw,28px);display:flex;justify-content:center}
.vlw-page-inner{width:100%;max-width:1040px}
.vlw-page .vlw-box{max-width:none}

/* Header sáng — mobile-first */
.vlw-head{position:relative;background:#fff;padding:clamp(20px,5vw,28px) clamp(16px,4vw,26px) clamp(16px,4vw,20px);text-align:center;border-bottom:1px solid var(--line)}
.vlw-head-glow{position:absolute;inset:0;background:radial-gradient(360px 150px at 50% -40%,rgba(37,99,235,.06),transparent 70%);pointer-events:none}
.vlw-brandbadge{position:relative;width:54px;height:54px;margin:0 auto 12px;display:flex;align-items:center;justify-content:center;color:var(--accent);background:var(--accent-soft);border:1px solid #dbe6ff;border-radius:15px}
.vlw-logo{position:relative;display:block;margin:0 auto 12px;max-height:56px;max-width:min(230px,70%);width:auto;height:auto;object-fit:contain}
.vlw-head h3{position:relative;margin:0 0 5px;font-size:clamp(19px,5vw,23px);font-weight:800;letter-spacing:-.02em;color:var(--ink)}
.vlw-head p{position:relative;margin:0 auto;max-width:440px;font-size:clamp(13px,3.6vw,14px);color:var(--muted)}
.vlw-head p strong{color:var(--ink);font-weight:700}

/* Body */
.vlw-body{padding:clamp(16px,4.5vw,22px) clamp(16px,4vw,26px) clamp(14px,4vw,18px)}

/* Tabs chế độ */
.vlw-tabs{display:inline-flex;gap:4px;background:#eff2f7;border-radius:11px;padding:4px;margin-bottom:14px}
.vlw-tab{border:0;background:transparent;color:var(--muted);font-family:inherit;font-size:13.5px;font-weight:600;padding:8px 16px;border-radius:8px;cursor:pointer;transition:all .15s}
.vlw-tab.active{background:#fff;color:var(--accent);box-shadow:0 1px 3px rgba(15,30,51,.12)}

/* Search — mobile-first: xếp dọc, nút full-width */
.vlw-search{display:flex;flex-direction:column;gap:10px}
.vlw-input-wrap{position:relative;flex:1;min-width:0;display:flex;align-items:center}
.vlw-input-icon{position:absolute;left:14px;color:#9aa7b4;pointer-events:none}
.vlw-search input{width:100%;padding:14px 14px 14px 42px;border:1.5px solid var(--line);border-radius:12px;font-size:16px;font-family:inherit;letter-spacing:.03em;text-transform:uppercase;transition:border-color .15s,box-shadow .15s;background:#fbfcfe}
.vlw-search input::placeholder{text-transform:none;letter-spacing:normal;color:#9aa7b4}
.vlw-search input:focus{outline:none;background:#fff;border-color:var(--accent);box-shadow:0 0 0 4px rgba(37,99,235,.13)}
.vlw-search button{padding:14px 26px;border:0;border-radius:12px;background:linear-gradient(180deg,var(--accent),var(--accent-d));color:#fff;font-weight:600;font-size:15px;font-family:inherit;cursor:pointer;white-space:nowrap;transition:filter .15s,transform .05s;box-shadow:0 8px 18px -8px rgba(37,99,235,.65)}
.vlw-search button:hover{filter:brightness(1.05)}
.vlw-search button:active{transform:translateY(1px)}
.vlw-search button:disabled{opacity:.6;cursor:default;filter:none}

/* Nhiều serial */
.vlw-multi textarea{width:100%;padding:13px 14px;border:1.5px solid var(--line);border-radius:12px;font-size:14px;font-family:ui-monospace,Menlo,Consolas,monospace;background:#fbfcfe;resize:vertical;min-height:120px;line-height:1.7}
.vlw-multi textarea:focus{outline:none;background:#fff;border-color:var(--accent);box-shadow:0 0 0 4px rgba(37,99,235,.13)}
.vlw-multi button{margin-top:10px;width:100%;padding:13px;border:0;border-radius:12px;background:linear-gradient(180deg,var(--accent),var(--accent-d));color:#fff;font-weight:600;font-size:15px;font-family:inherit;cursor:pointer;box-shadow:0 8px 18px -8px rgba(37,99,235,.65)}
.vlw-multi button:hover{filter:brightness(1.05)}
.vlw-multi button:disabled{opacity:.6;cursor:default}

/* Result reveal */
.vlw-result{margin-top:18px}
.vlw-result>*{animation:vlwUp .38s cubic-bezier(.22,.61,.36,1) both}
@keyframes vlwUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

/* Certificate */
.vlw-cert{position:relative;border-radius:16px;padding:22px;border:1px solid var(--line);overflow:hidden;background:#fff}
.vlw-cert.ok{background:linear-gradient(180deg,var(--ok-bg),#fff);border-color:var(--ok-bd)}
.vlw-cert.bad{background:linear-gradient(180deg,var(--bad-bg),#fff);border-color:var(--bad-bd)}
.vlw-cert.neutral{background:linear-gradient(180deg,#f8fafc,#fff)}
.vlw-cert::before{content:"";position:absolute;top:0;left:0;right:0;height:5px}
.vlw-cert.ok::before{background:linear-gradient(90deg,#15803d,#4ade80)}
.vlw-cert.bad::before{background:linear-gradient(90deg,#b91c1c,#f87171)}
.vlw-cert.neutral::before{background:linear-gradient(90deg,#475569,#94a3b8)}
.vlw-seal{position:absolute;right:-18px;bottom:-18px;font-weight:800;font-size:64px;letter-spacing:-.04em;color:rgba(15,30,51,.04);pointer-events:none;user-select:none}
.vlw-cert-head{display:flex;align-items:center;gap:14px;margin-bottom:6px}
.vlw-cert-icon{flex:none;width:52px;height:52px;display:flex;align-items:center;justify-content:center;border-radius:14px}
.vlw-cert.ok .vlw-cert-icon{color:#15803d;background:#dcfce7}
.vlw-cert.bad .vlw-cert-icon{color:#b91c1c;background:#fee2e2}
.vlw-cert.neutral .vlw-cert-icon{color:#475569;background:#e2e8f0}
.vlw-cert-status{font-size:18px;font-weight:800;letter-spacing:-.01em;line-height:1.2}
.vlw-cert.ok .vlw-cert-status{color:#15803d}
.vlw-cert.bad .vlw-cert-status{color:#b91c1c}
.vlw-cert.neutral .vlw-cert-status{color:#334155}
.vlw-cert-sub{font-size:13px;color:var(--muted);margin-top:2px}
.vlw-rows{position:relative;margin-top:16px;border-top:1px dashed rgba(15,30,51,.14);padding-top:6px}
.vlw-row{display:flex;justify-content:space-between;align-items:baseline;gap:14px;padding:8px 0;font-size:14.5px;border-bottom:1px dashed rgba(15,30,51,.08)}
.vlw-row:last-child{border-bottom:0}
.vlw-row .k{color:var(--muted);flex:none}
.vlw-row .v{font-weight:600;text-align:right;color:var(--ink)}

/* Tổng hợp lô */
.vlw-summary{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}
.vlw-pill{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;padding:6px 12px;border-radius:999px;border:1px solid}
.vlw-pill.total{color:var(--ink);background:#f1f5f9;border-color:#e2e8f0}
.vlw-pill.ok{color:var(--ok);background:var(--ok-bg);border-color:var(--ok-bd)}
.vlw-pill.exp{color:var(--bad);background:var(--bad-bg);border-color:var(--bad-bd)}
.vlw-pill.nf{color:var(--neu);background:var(--neu-bg);border-color:var(--neu-bd)}

/* Bảng kết quả lô */
.vlw-table-wrap{border:1px solid var(--line);border-radius:14px;overflow:hidden}
.vlw-table{width:100%;border-collapse:collapse;font-size:13.5px}
.vlw-table th{background:#f8fafc;color:var(--muted);font-weight:600;text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);font-size:12px;text-transform:uppercase;letter-spacing:.03em}
.vlw-table td{padding:11px 12px;border-bottom:1px solid #f1f5f9;vertical-align:middle}
.vlw-table tr:last-child td{border-bottom:0}
.vlw-table .sn{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12.5px;color:var(--ink)}
.vlw-badge{display:inline-block;font-size:11.5px;font-weight:700;padding:3px 9px;border-radius:999px;white-space:nowrap}
.vlw-badge.ok{color:var(--ok);background:var(--ok-bg);border:1px solid var(--ok-bd)}
.vlw-badge.exp{color:var(--bad);background:var(--bad-bg);border:1px solid var(--bad-bd)}
.vlw-badge.nf{color:var(--neu);background:var(--neu-bg);border:1px solid var(--neu-bd)}

.vlw-chip{font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace;font-size:13px;background:var(--ink);color:#e8f1ff;padding:3px 9px;border-radius:7px;letter-spacing:.04em}

/* Hành động (in / csv) */
.vlw-actions{display:flex;justify-content:flex-end;gap:8px;flex-wrap:wrap;margin-top:12px}
.vlw-print-btn{display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border:1.5px solid var(--line);border-radius:10px;background:#fff;color:var(--ink);font-size:13.5px;font-weight:600;font-family:inherit;cursor:pointer;transition:border-color .15s,background .15s,color .15s}
.vlw-print-btn:hover{border-color:var(--accent);background:var(--accent-soft);color:var(--accent-d)}
.vlw-print-btn svg{flex:none}

/* Not found */
.vlw-notfound{background:var(--neu-bg);border:1px solid var(--neu-bd);border-radius:16px;padding:20px;color:#7c4a0c;display:flex;gap:14px;align-items:flex-start}
.vlw-notfound svg{flex:none;color:#b45309}
.vlw-notfound strong{display:block;font-size:15px;margin-bottom:3px;color:#7c2d12}
.vlw-notfound .nf-sub{font-size:13.5px;line-height:1.5}
.vlw-msg{padding:12px 14px;border-radius:10px;font-size:14px;margin-top:12px}
.vlw-msg.err{background:var(--bad-bg);color:var(--bad);border:1px solid var(--bad-bd)}
.vlw-msg.done{background:var(--ok-bg);color:var(--ok);border:1px solid var(--ok-bd);font-weight:500}

/* RMA form */
.vlw-rma{margin-top:16px;border:1px solid var(--line);border-radius:16px;padding:20px;background:linear-gradient(180deg,#fbfcfe,#fff)}
.vlw-rma h4{margin:0 0 3px;font-size:16px;font-weight:700;color:var(--ink);display:flex;align-items:center;gap:8px}
.vlw-rma h4::before{content:"";width:6px;height:18px;border-radius:3px;background:linear-gradient(180deg,var(--accent),#38bdf8)}
.vlw-rma .sub{margin:0 0 14px;font-size:12.5px;color:var(--muted);padding-left:14px}
.vlw-rma .grid{display:grid;grid-template-columns:1fr;gap:11px}
.vlw-rma input,.vlw-rma textarea{width:100%;padding:11px 13px;border:1.5px solid var(--line);border-radius:10px;font-size:14px;font-family:inherit;background:#fff;transition:border-color .15s,box-shadow .15s}
.vlw-rma input:focus,.vlw-rma textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(37,99,235,.12)}
.vlw-rma textarea{grid-column:1/-1;resize:vertical;min-height:80px}
.vlw-rma .full{grid-column:1/-1}
.vlw-rma button{margin-top:14px;padding:12px 26px;border:0;border-radius:10px;background:var(--accent);color:#fff;font-weight:600;font-size:14.5px;cursor:pointer;font-family:inherit;transition:background .15s}
.vlw-rma button:hover{background:var(--accent-d)}
.vlw-rma button:disabled{opacity:.6;cursor:default}
.vlw-up{margin-top:12px}
.vlw-up-btn{display:inline-flex;align-items:center;gap:7px;cursor:pointer;font-size:13.5px;font-weight:500;color:var(--accent);border:1.5px dashed var(--accent);border-radius:10px;padding:9px 15px;background:#fff;transition:background .15s}
.vlw-up-btn:hover{background:var(--accent-soft)}
.vlw-prev{display:flex;flex-wrap:wrap;gap:9px;margin-top:11px}
.vlw-thumb{position:relative;width:62px;height:62px}
.vlw-thumb img{width:62px;height:62px;object-fit:cover;border-radius:10px;border:1px solid var(--line)}
.vlw-thumb .vlw-x{position:absolute;top:-7px;right:-7px;width:20px;height:20px;border-radius:50%;border:2px solid #fff;background:var(--bad);color:#fff;font-size:13px;line-height:1;cursor:pointer;padding:0;display:flex;align-items:center;justify-content:center}

/* Footer */
.vlw-foot{margin-top:16px;padding-top:14px;border-top:1px solid var(--line);text-align:center;font-size:11.5px;letter-spacing:.05em;text-transform:uppercase;color:#9aa7b4}

/* ===== Mobile-first: nâng cấp lên màn hình lớn ===== */
@media(min-width:540px){
  .vlw-search{flex-direction:row;align-items:stretch}
  .vlw-search input{font-size:15px}
  .vlw-search button{flex:none}
  .vlw-rma .grid{grid-template-columns:1fr 1fr}
}
/* Bảng lô: cho cuộn ngang trên màn hình rất hẹp */
.vlw-table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
.vlw-table{min-width:460px}

@media(prefers-reduced-motion:reduce){.vlw-result>*{animation:none}}

/* ===== Desktop 2 cột (chế độ full-page). Mobile-first: mặc định 1 cột, từ 900px tách 2 cột ===== */
@media(min-width:900px){
  .vlw-box.wide{display:grid;grid-template-columns:360px 1fr;align-items:stretch}
  .vlw-box.wide::before{grid-column:1/-1}
  /* Cột trái: thương hiệu / giới thiệu */
  .vlw-box.wide .vlw-head{
    border-bottom:0;border-right:1px solid var(--line);
    text-align:left;display:flex;flex-direction:column;justify-content:center;
    background:linear-gradient(180deg,#f7faff,#fff);
    padding:36px 30px}
  .vlw-box.wide .vlw-head .vlw-logo,
  .vlw-box.wide .vlw-head .vlw-brandbadge{margin-left:0;margin-right:auto}
  .vlw-box.wide .vlw-head h3{font-size:26px;margin-bottom:8px}
  .vlw-box.wide .vlw-head p{margin:0;max-width:none;font-size:14.5px;line-height:1.6}
  /* Cột phải: hành động */
  .vlw-box.wide .vlw-body{padding:34px 34px 28px}
}
@media(min-width:1120px){
  .vlw-box.wide{grid-template-columns:400px 1fr}
  .vlw-box.wide .vlw-head{padding:44px 40px}
  .vlw-box.wide .vlw-body{padding:40px 44px 32px}
}