:root{
  --bg:#f4f6f9; --card:#fff; --text:#1d2433; --muted:#6b7385; --line:#e2e6ee; --grid:#eef0f4;
  --primary:#0f6fde; --primary-ink:#fff; --soft:#eef4fd;
  --good:#1a7f45; --good-bg:#e6f4ec; --warn:#9a5b00; --warn-bg:#fff4e0; --bad:#c0352b; --bad-bg:#fbe9e7; --info:#2a5d9f; --info-bg:#eaf1fb;
  --series-1:#2a78d6; --series-2:#eb6834; --series-3:#1baf7a;
}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;background:var(--bg);color:var(--text);font-size:15px}
header{background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.wrap{max-width:1250px;margin:0 auto;padding:0 16px}
.top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 0;flex-wrap:wrap}
.brand{font-weight:700;font-size:18px}
.brand small{display:block;font-weight:400;color:var(--muted);font-size:12px}
.who{display:flex;align-items:center;gap:8px;font-size:13px;flex-wrap:wrap}
.sync-info{font-size:12px;color:var(--muted);max-width:330px}
nav{display:flex;gap:4px;overflow-x:auto;padding:5px;margin-bottom:10px;border-radius:5px;background:linear-gradient(135deg,#1f4e8c,#2b6cb8)}
nav button{border:0;background:transparent;padding:8px 16px;border-radius:3px;cursor:pointer;font-size:14px;color:rgba(255,255,255,.85);white-space:nowrap}
nav button:hover{background:rgba(255,255,255,.14);color:#fff}
nav button.active{background:#fff;color:#1f4e8c;font-weight:700}
main{padding:16px 0 60px}
.center{text-align:center;padding:60px 16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px 18px;margin-bottom:16px}
.card h2{margin:0 0 12px;font-size:17px}
.card h3{margin:16px 0 8px;font-size:15px}
.card-head{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:10px}
.card-head h2{margin:0}
.grid{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.grid2{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(420px,1fr))}
.grid2>.card{margin-bottom:0}
label{display:block;font-size:13px;color:var(--muted);margin-bottom:4px}
input,select,textarea{width:100%;padding:8px 10px;border:1px solid var(--line);border-radius:8px;font:inherit;background:#fff;color:var(--text)}
textarea{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13px;line-height:1.5}
input:focus,select:focus,textarea:focus{outline:2px solid var(--primary);outline-offset:-1px}
.btn{display:inline-block;border:1px solid var(--line);background:#fff;padding:8px 14px;border-radius:8px;cursor:pointer;font:inherit;font-size:14px;color:var(--text);text-decoration:none;white-space:nowrap}
.btn.primary{background:var(--primary);color:var(--primary-ink);border-color:var(--primary)}
.btn.danger{color:var(--bad)}
.btn.sm{padding:4px 10px;font-size:13px}
.btn:disabled{opacity:.6;cursor:wait}
.row{display:flex;gap:8px;align-items:end;flex-wrap:wrap}
.row>.grow{flex:1;min-width:160px}
.filters{display:flex;gap:10px;align-items:end;flex-wrap:wrap}
.filters>div{min-width:130px}
.filters .dates{display:flex;gap:6px}
.filters .dates input{width:140px}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{padding:7px 8px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}
th{font-size:12px;color:var(--muted);font-weight:600;text-transform:uppercase;white-space:nowrap;background:#fafbfc;position:sticky;top:0}
th.sortable{cursor:pointer}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
tbody tr:hover{background:#f8fafd}
.table-wrap{overflow:auto;max-height:620px}
.muted{color:var(--muted);font-size:13px}
.hint{font-size:12px;color:var(--muted);margin-top:4px}
.msg{font-size:13px;margin-top:6px}
.msg.err{color:var(--bad)} .msg.ok{color:var(--good)} .msg.warn{color:var(--warn,#b26a00)}
.hidden{display:none!important}
.check{display:flex;align-items:center;gap:6px;color:var(--text);font-size:14px;margin:0}
.check input{width:auto}

/* Thẻ số liệu */
.kpis{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));margin-bottom:16px}
.kpi{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px 16px}
.kpi .k-label{font-size:13px;color:var(--muted)}
.kpi .k-val{font-size:26px;font-weight:700;margin:4px 0 2px;font-variant-numeric:tabular-nums}
.kpi .k-sub{font-size:12px;color:var(--muted)}
.delta{font-weight:600;font-size:12px;white-space:nowrap}
.badge{display:inline-block;padding:2px 9px;border-radius:99px;font-size:12px;font-weight:600;white-space:nowrap;background:var(--soft);color:var(--primary)}
.badge.bad{background:var(--bad-bg);color:var(--bad)} .badge.warn{background:var(--warn-bg);color:var(--warn)}
.badge.slow{background:#f0ecfa;color:#5b47b5} .badge.ok{background:var(--good-bg);color:var(--good)}
.badge.est{background:#f1f2f5;color:var(--muted);font-weight:500}
.chips{display:flex;gap:6px;flex-wrap:wrap}
.chip{border:1px solid var(--line);background:#fff;border-radius:99px;padding:5px 12px;font-size:13px;cursor:pointer}
.chip.on{background:var(--primary);color:#fff;border-color:var(--primary)}
/* Đăng nhập */
.login{max-width:400px;margin:60px auto}
.google-btn{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;padding:11px;font-weight:600}
.or-line{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:12px;margin:16px 0}
.or-line::before,.or-line::after{content:"";flex:1;border-top:1px solid var(--line)}
.modal-bg{position:fixed;inset:0;background:rgba(20,26,40,.45);display:flex;align-items:center;justify-content:center;z-index:20;padding:16px}
.modal-bg .card{max-width:440px;width:100%;margin:0}
.syncbar{background:var(--warn-bg);color:var(--warn);font-size:13px;padding:8px 12px;border-radius:8px;margin-bottom:12px}
code{background:#f1f3f7;padding:1px 5px;border-radius:4px;font-size:12px;word-break:break-all}
.upd-bar{position:fixed;top:12px;left:50%;transform:translateX(-50%);z-index:1000;background:var(--card);border:1px solid var(--primary);border-radius:12px;padding:10px 14px;box-shadow:0 6px 24px rgba(0,0,0,.18);display:flex;gap:12px;align-items:center;max-width:calc(100vw - 32px);flex-wrap:wrap}
@media (max-width:640px){
  .grid2{grid-template-columns:1fr}
  .kpi .k-val{font-size:22px}
  .filters>div{min-width:calc(50% - 6px)}
  .filters .dates input{width:100%}
}

/* ===== Riêng app Xuất nhập khẩu ===== */
.modal-bg .card.wide{max-width:1150px;max-height:calc(100vh - 32px);overflow:auto}
.modal-bg .card.mid{max-width:680px;max-height:calc(100vh - 32px);overflow:auto}
.form-grid{display:grid;gap:10px 12px;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));margin-bottom:10px}
.form-grid .full{grid-column:1/-1}
td input,td select{padding:5px 7px;font-size:13px;min-width:70px}
td input.qty{width:90px} td input.price{width:95px} td input.note{min-width:150px}
tr.sel{background:var(--soft)}
tr.dim td{opacity:.55}
tr.deleted td{text-decoration:line-through;color:var(--muted)}
tr.deleted td.keep{text-decoration:none}
tfoot td{font-weight:700;background:#fafbfc}
.tabs2{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:12px}
.warn-box{background:var(--warn-bg);color:var(--warn);border-radius:8px;padding:10px 12px;font-size:14px;margin:10px 0}
.warn-box table{background:#fff;margin-top:8px}
.up{color:var(--good)} .down{color:var(--bad)}
.thumbs{display:flex;gap:6px;flex-wrap:wrap}
.thumbs a img{width:56px;height:56px;object-fit:cover;border-radius:6px;border:1px solid var(--line);display:block}
.thumbs .pdf{display:inline-flex;width:56px;height:56px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:6px;font-size:12px}
.section-title{display:flex;justify-content:space-between;align-items:center;gap:8px;flex-wrap:wrap;margin:18px 0 8px}
.section-title h3{margin:0}
.pill{display:inline-block;font-size:11px;padding:1px 7px;border-radius:99px;background:#f1f2f5;color:var(--muted);margin-left:4px}
.cyc{display:flex;gap:2px;align-items:flex-end;height:22px}
.cyc i{display:block;width:5px;background:var(--series-1);border-radius:1px 1px 0 0;min-height:1px}
.sticky-actions{position:sticky;bottom:0;background:var(--card);padding:10px 0 2px;border-top:1px solid var(--line);margin-top:10px;display:flex;gap:8px;justify-content:flex-end;flex-wrap:wrap}
.kv{display:grid;grid-template-columns:max-content 1fr;gap:4px 14px;font-size:14px}
.kv span{color:var(--muted)}