:root{
  --bg:#f6f7f9; --panel:#fff; --ink:#1b2430; --muted:#667085; --line:#e4e7ec;
  --accent:#1f3a5f; --accent-2:#2e5a8a; --good:#1a7f4b; --warn:#b26b00; --bad:#b42318;
  --chip:#eef2f7;
}
@media (prefers-color-scheme: dark){
  :root{--bg:#12161c;--panel:#1a2029;--ink:#e6e9ee;--muted:#98a2b3;--line:#2a323d;
        --accent:#7fb0e6;--accent-2:#9cc3ee;--chip:#232b36;--good:#4cc38a;--warn:#f0b04a;--bad:#f07a6e}
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.45 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:var(--accent-2);text-decoration:none} a:hover{text-decoration:underline}
header{background:var(--panel);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.bar{max-width:1400px;margin:0 auto;padding:10px 16px;display:flex;gap:18px;align-items:center;flex-wrap:wrap}
.brand{font-weight:700;font-size:16px;color:var(--ink);letter-spacing:.2px}
nav a{color:var(--muted);margin-right:14px;font-weight:500} nav a.on{color:var(--ink)}
.ai{margin-left:auto;font-size:12px;padding:3px 8px;border-radius:99px;background:var(--chip);color:var(--muted)}
.ai.on{color:var(--good)}
main{max-width:1400px;margin:0 auto;padding:18px 16px 60px}
h1{font-size:20px;margin:0 0 14px} h2{font-size:15px;margin:22px 0 10px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:14px 16px;margin-bottom:14px}
.grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.flash{background:var(--chip);border-left:3px solid var(--accent-2);padding:8px 12px;border-radius:6px;margin-bottom:10px}
.warn{border-left-color:var(--warn)}
table{width:100%;border-collapse:collapse;font-variant-numeric:tabular-nums}
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;white-space:nowrap;background:var(--panel);position:sticky;top:var(--top,50px);z-index:5;box-shadow:inset 0 -1px 0 var(--line)}
td.n,th.n{text-align:right;white-space:nowrap}
tr:hover td{background:color-mix(in srgb,var(--chip) 60%,transparent)}
.scroll{overflow-x:clip}
@media (max-width:900px){.scroll{overflow-x:auto} th{position:static}}
.muted{color:var(--muted)} .small{font-size:12px}
.pill{display:inline-block;font-size:11px;padding:2px 7px;border-radius:99px;background:var(--chip);color:var(--muted);white-space:nowrap}
.pill.ok{color:var(--good)} .pill.under_target,.pill.above_market{color:var(--warn)} .pill.loss,.pill.error{color:var(--bad)}
.pill.sold{color:var(--good)} .pill.listed{color:var(--accent-2)}
.good{color:var(--good)} .bad{color:var(--bad)}
input,select,textarea{font:inherit;color:var(--ink);background:var(--panel);border:1px solid var(--line);border-radius:6px;padding:6px 8px}
input[type=number]{width:96px} input.w{width:100%} textarea{width:100%;min-height:80px}
button,.btn{font:inherit;font-weight:600;border:0;border-radius:6px;padding:7px 12px;background:var(--accent);color:#fff;cursor:pointer;display:inline-block}
@media (prefers-color-scheme: dark){button,.btn{color:#0e1419}}
button.ghost,.btn.ghost{background:transparent;color:var(--accent-2);border:1px solid var(--line)}
button.danger{background:transparent;color:var(--bad);border:1px solid var(--line)}
.row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.kv{display:grid;grid-template-columns:auto 1fr;gap:4px 14px} .kv div:nth-child(odd){color:var(--muted)}
.kv div:nth-child(even){text-align:right;font-variant-numeric:tabular-nums}
.big{font-size:22px;font-weight:700}
.toolbar{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:12px}
.tabs a{padding:5px 10px;border-radius:6px;color:var(--muted)} .tabs a.on{background:var(--chip);color:var(--ink)}
.progress{height:6px;background:var(--chip);border-radius:9px;overflow:hidden;margin-top:6px}
.progress>div{height:100%;background:var(--accent-2);transition:width .4s}
label{display:block;font-size:12px;color:var(--muted);margin:8px 0 3px}
.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:4px 12px}
.thumb{width:44px;height:44px;object-fit:contain;border-radius:6px;background:#fff;border:1px solid var(--line);display:block}
.gallery{display:flex;gap:8px;flex-wrap:wrap}
.gallery img{width:120px;height:120px;object-fit:contain;background:#fff;border:1px solid var(--line);border-radius:8px}
.desc{white-space:pre-line;max-height:220px;overflow:auto}
.statusbar{max-width:1400px;margin:0 auto;padding:0 16px}
.status{background:var(--chip);border-left:3px solid var(--accent-2);padding:8px 12px;border-radius:6px;margin:0 0 10px}
.status[hidden]{display:none}
.status .progress{background:var(--line)}
.pill.faulty{color:var(--bad)}
.sum-head{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.sum-section{font-size:12px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.4px;margin:16px 0 8px}
.metrics{display:grid;gap:10px;grid-template-columns:repeat(auto-fill,minmax(190px,1fr))}
@media (max-width:640px){.metrics{grid-template-columns:1fr 1fr;gap:8px}.metric .val{font-size:17px}}
.metric{background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:10px 12px}
.metric.strong{border-color:var(--accent-2)}
.metric .lbl{font-size:12px;color:var(--muted)}
.metric .val{font-size:20px;font-weight:700;font-variant-numeric:tabular-nums;margin-top:2px}
.metric .delta{font-size:12px;margin-top:2px;font-variant-numeric:tabular-nums}
[hidden]{display:none!important}
/* "?" calculation popover */
.qm{position:relative;display:inline-flex;align-items:center;justify-content:center;width:16px;height:16px;margin-left:5px;
    border-radius:50%;background:var(--chip);color:var(--muted);font-size:11px;font-weight:700;cursor:help;vertical-align:1px;
    border:1px solid var(--line);outline:none}
.qm:hover,.qm:focus{color:var(--ink);border-color:var(--accent-2)}
.qm .pop{display:none;position:absolute;right:-8px;top:22px;z-index:30;width:330px;padding:10px 12px;text-align:left;
    background:var(--panel);color:var(--ink);border:1px solid var(--line);border-radius:8px;
    box-shadow:0 8px 24px rgba(0,0,0,.18);font-size:12px;font-weight:400;white-space:normal;cursor:default}
.qm:hover .pop,.qm:focus .pop,.qm:focus-within .pop{display:block}
.pop b{font-size:13px}
.pop-note{display:block;color:var(--muted);margin:3px 0 6px}
.pop-table{display:block;border-top:1px solid var(--line);margin-top:4px;padding-top:4px}
.pop-row{display:flex;justify-content:space-between;gap:12px;padding:2px 0;font-variant-numeric:tabular-nums}
.pop-row i{color:var(--muted);font-style:normal}
.pop-row.sub{border-top:1px solid var(--line);border-bottom:1px solid var(--line);font-weight:600;margin:2px 0;padding:3px 0}
.pop-row.profit{border-top:1px solid var(--line);font-weight:700;margin-top:2px;padding-top:4px}
.big .qm{vertical-align:4px}
@media (max-width:640px){.qm .pop{position:fixed;left:12px;right:12px;top:30%;width:auto}}
.pop-row>span:last-child{white-space:nowrap;flex-shrink:0}
.vat-switch{margin:0 0 0 auto}
.switch{display:inline-flex;align-items:center;gap:7px;background:var(--chip);color:var(--muted);border:1px solid var(--line);
  font-size:12px;font-weight:600;padding:3px 10px 3px 4px;border-radius:99px}
.switch .knob{width:26px;height:15px;border-radius:99px;background:var(--line);position:relative;transition:background .15s}
.switch .knob::after{content:"";position:absolute;top:2px;left:2px;width:11px;height:11px;border-radius:50%;background:#fff;transition:left .15s}
.switch.on{color:var(--ink)} .switch.on .knob{background:var(--good)} .switch.on .knob::after{left:13px}
/* auth */
.auth-page{display:flex;min-height:100vh;align-items:flex-start;justify-content:center}
.auth-wrap{width:100%;max-width:400px;padding:12vh 16px 40px}
.auth-brand{font-weight:700;font-size:20px;margin-bottom:16px;text-align:center}
.auth-card{padding:20px 22px}
.auth-card h1{font-size:18px}
button.w{width:100%;padding:9px 12px}
.code-input{font-size:20px;letter-spacing:4px;text-align:center;max-width:220px;font-variant-numeric:tabular-nums}
.auth-card .code-input{max-width:none;width:100%}
.qr{margin:10px 0;display:block;width:fit-content;padding:6px;background:#fff;border-radius:8px;border:1px solid var(--line)}
.qr svg{display:block;max-width:240px;height:auto}
.secret{font-size:15px;letter-spacing:1px;word-break:break-all}
.steps li{margin:8px 0}
pre.codes{font-size:16px;line-height:1.8;background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:10px 16px;columns:2}
.userbox{display:flex;gap:8px;align-items:center}
.userbox a{color:var(--muted);font-weight:500} .userbox a.on{color:var(--ink)}
.userbox form{margin:0}
.small-btn{padding:3px 9px;font-size:12px}
.user-actions{gap:4px} .user-actions button{padding:4px 8px;font-size:12px}
tr.bad td{color:var(--bad)}
.linkbox{border-color:var(--accent-2)}
details summary{cursor:pointer;color:var(--accent-2)}
/* settings help */
.settings .field{margin-bottom:12px}
.help{font-size:12px;color:var(--muted);margin:4px 0 0;line-height:1.5}
label.check{display:flex;gap:8px;align-items:center;font-size:14px;color:var(--ink)}
.round-table tr{cursor:pointer}
.round-table tr.sel td{background:color-mix(in srgb,var(--accent-2) 12%,transparent)}
.round-table th{position:static}
pre.log{background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:10px 12px;font-size:12px;white-space:pre-wrap;max-height:320px;overflow:auto}
.reauth{margin:8px 0}
.rollback{padding:8px 0}
.spinner{display:inline-block;width:12px;height:12px;border:2px solid var(--line);border-top-color:var(--accent-2);border-radius:50%;animation:spin 0.8s linear infinite;vertical-align:-2px;margin-right:6px}
@keyframes spin{to{transform:rotate(360deg)}}
.mail-tabs{display:flex;gap:4px;margin:10px 0 12px;border-bottom:1px solid var(--line)}
.mail-tabs a{padding:6px 12px;color:var(--muted);border-bottom:2px solid transparent;margin-bottom:-1px}
.mail-tabs a.on{color:var(--ink);border-bottom-color:var(--accent-2)}
button.google,.btn.google{display:inline-flex;align-items:center;gap:8px;background:#fff;color:#1f1f1f;border:1px solid #dadce0;font-weight:600}
button.google:disabled{opacity:.5;cursor:not-allowed}
.google .g{font-weight:800;color:#4285f4}
code.copy{user-select:all;display:inline-block;margin-top:4px;word-break:break-all}
.restore-box{padding:8px 0;border-bottom:1px dashed var(--line);margin-bottom:6px;min-width:300px}
.restore-box label.check{font-size:13px;align-items:flex-start;margin:6px 0}
.backup-table td{vertical-align:top}
.pill.shop{color:#7f54b3}
.bu-imgs{display:flex;gap:6px;flex-wrap:wrap;margin:4px 0}
.bu-imgs label{position:relative;display:block;margin:0}
.bu-imgs img{width:56px;height:56px;object-fit:contain;background:#fff;border:1px solid var(--line);border-radius:6px;display:block}
.bu-imgs input{position:absolute;top:2px;left:2px}
.bu-imgs input:not(:checked)+img{opacity:.35}
details.card>summary{cursor:pointer}
.bu-parts td{vertical-align:middle}
.pill.split{color:var(--muted)}
/* item search box (invoice review) */
.combo-cell{min-width:320px}
.combo{position:relative}
.combo-box{display:flex;align-items:center}
.combo-input{width:100%;padding-right:26px}
.combo-clear{margin-left:-26px;background:transparent;color:var(--muted);padding:2px 6px;font-weight:400}
.combo-list{position:absolute;left:0;right:0;top:100%;z-index:40;max-height:320px;overflow:auto;background:var(--panel);
  border:1px solid var(--line);border-radius:8px;box-shadow:0 8px 24px rgba(0,0,0,.18);margin-top:2px}
.combo-opt{padding:6px 10px;cursor:pointer;border-bottom:1px solid var(--line)}
.combo-opt:last-child{border-bottom:0}
.combo-opt.on,.combo-opt:hover{background:var(--chip)}
.combo-opt.sold>div:first-child{color:var(--muted)}
.combo-empty{padding:8px 10px;color:var(--muted)}
.combo-pick{margin-top:3px}