:root{
  --bg:#0f1623; --panel:#172033; --panel2:#1d293f; --line:#2a3852;
  --txt:#e8eef7; --mut:#93a4be; --accent:#3b82f6;
  /* Okabe-Ito colour-blind safe palette */
  --c1:#0072B2; --c2:#E69F00; --c3:#009E73; --c4:#CC79A7; --c5:#D55E00; --c6:#56B4E9; --c7:#F0E442;
  --good:#10b981; --bad:#ef4444; --warn:#f59e0b;
}
*{box-sizing:border-box}
body{margin:0;font:14px/1.45 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);color:var(--txt)}
header{position:sticky;top:0;z-index:30;background:linear-gradient(180deg,#142036,#0f1623);
  border-bottom:1px solid var(--line);padding:10px 18px}
.htop{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.logo{font-weight:700;font-size:16px;letter-spacing:.3px}
.logo b{color:var(--c6)}
.sub{color:var(--mut);font-size:12px}
.spacer{flex:1}
.pill{background:var(--panel2);border:1px solid var(--line);border-radius:20px;padding:4px 12px;font-size:12px;color:var(--mut)}
.btn{background:var(--panel2);border:1px solid var(--line);color:var(--txt);border-radius:8px;padding:7px 12px;
  cursor:pointer;font-size:13px}
.btn:hover{border-color:var(--accent)}
.btn.pri{background:var(--accent);border-color:var(--accent);color:#fff}

/* filter bar */
.filters{display:flex;gap:10px;flex-wrap:wrap;margin-top:10px;align-items:flex-end}
.fl{display:flex;flex-direction:column;gap:3px}
.fl label{font-size:11px;color:var(--mut);text-transform:uppercase;letter-spacing:.4px}
select,input[type=date],input[type=search]{background:var(--panel2);border:1px solid var(--line);color:var(--txt);
  border-radius:7px;padding:6px 8px;font-size:13px;min-width:130px}
select[multiple]{min-height:34px}
.checks{display:flex;gap:8px;flex-wrap:wrap;background:var(--panel2);border:1px solid var(--line);border-radius:7px;padding:7px 9px}
.checks label{display:flex;align-items:center;gap:4px;font-size:12.5px;color:var(--txt);cursor:pointer;text-transform:none;letter-spacing:0}
.checks input{accent-color:var(--accent);cursor:pointer}

/* tabs */
nav.tabs{display:flex;gap:4px;flex-wrap:wrap;padding:8px 18px 0;background:var(--bg);position:sticky;top:0;z-index:20}
nav.tabs button{background:transparent;border:none;border-bottom:2px solid transparent;color:var(--mut);
  padding:9px 13px;cursor:pointer;font-size:13px;border-radius:6px 6px 0 0}
nav.tabs button.active{color:var(--txt);border-bottom-color:var(--accent);background:var(--panel)}
nav.tabs button:hover{color:var(--txt)}

main{padding:16px 18px 60px}
section{display:none}
section.active{display:block}
.grid{display:grid;gap:14px}
.k4{grid-template-columns:repeat(4,1fr)}
.k5{grid-template-columns:repeat(5,1fr)}
.k2{grid-template-columns:repeat(2,1fr)}
.k3{grid-template-columns:repeat(3,1fr)}
@media(max-width:1100px){.k4,.k5{grid-template-columns:repeat(2,1fr)}.k3,.k2{grid-template-columns:1fr}}

.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:14px 16px}
.card h3{margin:0 0 10px;font-size:13px;color:var(--mut);text-transform:uppercase;letter-spacing:.5px;font-weight:600}
.kpi .val{font-size:26px;font-weight:700;margin:2px 0}
.kpi .lab{font-size:12px;color:var(--mut)}
.kpi .delta{font-size:12px;margin-top:4px}
.info-i{display:inline-block;width:14px;height:14px;border-radius:50%;background:var(--panel2);border:1px solid var(--line);
  color:var(--mut);font-size:10px;text-align:center;line-height:13px;cursor:help;vertical-align:1px;margin-left:4px;font-style:normal}
.up{color:var(--good)} .down{color:var(--bad)} .flat{color:var(--mut)}
.hint{cursor:help;border-bottom:1px dotted var(--mut)}

table{width:100%;border-collapse:collapse;font-size:12.5px}
th,td{text-align:left;padding:7px 9px;border-bottom:1px solid var(--line);white-space:nowrap}
th{color:var(--mut);font-weight:600;position:sticky;top:0;background:var(--panel);cursor:pointer;user-select:none}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
.tblwrap{max-height:440px;overflow:auto;border-radius:8px}
tr:hover td{background:#1b2742}
.tag{display:inline-block;padding:1px 7px;border-radius:10px;font-size:11px;font-weight:600}
.tag.pl{background:#3b2a4d;color:#e0a3ff}
.tag.promo{background:#3a2e16;color:#ffcf6b}
.tag.crit{background:#4d1f1f;color:#ff9a9a}
.tag.med{background:#4a3a14;color:#ffd27a}
.tag.info{background:#173a4d;color:#8fd3ff}
.chips{display:flex;gap:6px;flex-wrap:wrap}
.mini{color:var(--mut);font-size:11px;margin-top:6px}
canvas{max-height:300px}
.heat td{text-align:center;font-variant-numeric:tabular-nums;border:1px solid var(--bg)}
.heat th{text-align:center}
.bar{height:8px;border-radius:4px;background:var(--accent)}
.note{background:#172a3d;border:1px solid #2b4a63;border-radius:8px;padding:9px 12px;color:#a9d3ef;font-size:12.5px;margin-bottom:12px}
.note b{color:#cde8ff}
.flexrow{display:flex;gap:14px;flex-wrap:wrap}
.flexrow>*{flex:1;min-width:320px}
.legend{display:flex;gap:14px;flex-wrap:wrap;font-size:12px;color:var(--mut);margin-top:8px}
.legend i{display:inline-block;width:11px;height:11px;border-radius:2px;margin-right:5px;vertical-align:-1px}
.empty{color:var(--mut);padding:20px;text-align:center}
.skubox textarea{width:100%;min-height:64px;background:var(--panel2);border:1px solid var(--line);color:var(--txt);
  border-radius:8px;padding:9px 11px;font:13px/1.4 inherit;resize:vertical}
.skubar{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-top:8px}
.examples{display:flex;gap:6px;flex-wrap:wrap}
.examples .ex{background:var(--panel2);border:1px solid var(--line);border-radius:14px;padding:3px 10px;font-size:12px;cursor:pointer;color:var(--mut)}
.examples .ex:hover{border-color:var(--accent);color:var(--txt)}
.skucard{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:12px 14px;margin-top:14px}
.skucard .head{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-bottom:8px}
.skucard .head img{width:40px;height:40px;border-radius:6px;object-fit:contain;background:#fff}
.skucard .head .nm{font-weight:600;font-size:14px}
.skucard .head .bc{color:var(--mut);font-size:11px;font-variant-numeric:tabular-nums}
.skustat{display:flex;gap:14px;flex-wrap:wrap;font-size:12px;color:var(--mut);margin-left:auto}
.skustat b{color:var(--txt);font-variant-numeric:tabular-nums}
td.cheap{background:#13351f !important;color:#7ee2a8;font-weight:600}
td.dear{background:#3a1820 !important;color:#ff9aa6;font-weight:600}
.ic{width:15px;height:15px;vertical-align:-2px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;display:inline-block;margin-right:4px}
.ic.fill{fill:currentColor;stroke:none}
.ic.g{color:var(--good)} .ic.r{color:var(--bad)} .ic.b{color:var(--c6)} .ic.o{color:var(--c2)} .ic.y{color:var(--warn)}
td[data-nav]{cursor:pointer}
td[data-nav]:hover{outline:1px solid var(--accent);outline-offset:-1px}
.kpi.navk{cursor:pointer;transition:border-color .12s,transform .08s}
.kpi.navk:hover{border-color:var(--accent);transform:translateY(-1px)}
.navarrow{color:var(--c6);font-size:12px;opacity:.7}
.thumb{width:30px;height:30px;object-fit:contain;background:#fff;border-radius:4px;display:block}
tr.clickable{cursor:pointer}
tr.clickable:hover td{background:#22335a}
/* product detail modal */
.modal{position:fixed;inset:0;z-index:100;background:rgba(6,10,18,.75);display:none;overflow:auto;padding:28px}
.modal.open{display:block}
.modal .panel{max-width:1100px;margin:0 auto;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:18px 20px}
.modal .x{float:right;background:var(--panel2);border:1px solid var(--line);color:var(--txt);border-radius:8px;
  padding:6px 12px;cursor:pointer;font-size:14px}
.modal .x:hover{border-color:var(--accent)}
.dhead{display:flex;gap:16px;align-items:flex-start;flex-wrap:wrap}
.dhead img{width:130px;height:130px;object-fit:contain;background:#fff;border-radius:10px}
.dhead .nm{font-size:18px;font-weight:700;margin-bottom:4px}
.dhead .specs{display:grid;grid-template-columns:auto 1fr;gap:2px 14px;font-size:13px;margin-top:8px}
.dhead .specs .k{color:var(--mut)}
.tcol{display:flex;gap:8px;flex-wrap:wrap;margin:6px 0 2px}
.filterrow input{width:100%;background:#101a2c;border:1px solid var(--line);color:var(--txt);border-radius:5px;
  padding:3px 6px;font-size:11.5px}
.filterrow th{padding:3px 6px;position:sticky;top:30px;background:var(--panel)}
.scoregrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px}
.score h4{margin:0 0 8px;font-size:15px}
.score .row{display:flex;justify-content:space-between;padding:5px 0;border-bottom:1px solid var(--line);font-size:13px}
.score .row b{font-variant-numeric:tabular-nums}
footer{color:var(--mut);font-size:11px;padding:18px;text-align:center;border-top:1px solid var(--line)}
.search-dropdown{display:none;position:absolute;top:100%;left:0;right:0;min-width:360px;max-height:320px;overflow:auto;
  background:var(--panel);border:1px solid var(--accent);border-radius:8px;z-index:50;margin-top:2px;box-shadow:0 8px 24px rgba(0,0,0,.5)}
.search-dropdown.open{display:block}
.search-dropdown .sr{display:flex;align-items:center;gap:8px;padding:7px 10px;cursor:pointer;font-size:12.5px;border-bottom:1px solid var(--line)}
.search-dropdown .sr:hover{background:var(--panel2)}
.search-dropdown .sr img{width:28px;height:28px;object-fit:contain;background:#fff;border-radius:4px}
.search-dropdown .sr .sn{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.search-dropdown .sr .sb{color:var(--mut);font-size:11px;font-variant-numeric:tabular-nums}
.search-dropdown .sr .sp{color:var(--c6);font-size:11px;margin-left:auto;white-space:nowrap}