:root{
  --bg:#f4f6f8; --panel:#fff; --line:#dde3e9; --text:#22303c; --muted:#6b7c8d;
  --accent:#1673d1; --green:#1d9a6c; --orange:#e08a00; --red:#d84545; --input:#fff;
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,"PingFang TC","Microsoft JhengHei",system-ui,sans-serif;
  background:var(--bg);color:var(--text);font-size:15px;line-height:1.55}
a{color:var(--accent);text-decoration:none}
/* top bar */
.top{display:flex;align-items:center;gap:18px;background:#16283b;color:#fff;
  padding:0 16px;height:52px;position:sticky;top:0;z-index:10;overflow-x:auto;white-space:nowrap}
.top .brand{font-weight:700;font-size:16px}
.top nav{display:flex;gap:4px}
.top nav a{color:#c8d6e4;padding:6px 12px;border-radius:8px;font-size:14px}
.top nav a.on,.top nav a:hover{background:#274a6d;color:#fff}
.top .usr{margin-left:auto;font-size:13px;color:#c8d6e4;display:flex;gap:10px;align-items:center}
.top .usr a{color:#8fb8e0}
main{max-width:1100px;margin:0 auto;padding:20px 14px 80px}
h1{font-size:20px;margin:6px 0 16px}
h2{font-size:16px;margin:0 0 12px}
.flash{background:#e6f4ea;border:1px solid #b5dfc3;color:#18683f;border-radius:10px;
  padding:10px 14px;margin-bottom:14px;font-size:14px}
/* cards */
.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;
  padding:18px;margin-bottom:16px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px;margin-bottom:16px}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:14px 16px}
.stat .k{font-size:13px;color:var(--muted)}
.stat .v{font-size:22px;font-weight:700;margin-top:2px;font-variant-numeric:tabular-nums}
.stat .v.orange{color:var(--orange)} .stat .v.green{color:var(--green)}
/* tables */
.tblwrap{overflow-x:auto;background:var(--panel);border:1px solid var(--line);border-radius:12px}
table{width:100%;border-collapse:collapse;font-size:14px;min-width:640px}
th{background:#f0f3f6;color:var(--muted);font-weight:600;text-align:left;
  padding:9px 12px;font-size:13px;border-bottom:1px solid var(--line)}
td{padding:9px 12px;border-bottom:1px solid #edf1f5;vertical-align:middle}
tr:last-child td{border-bottom:none}
tr.click{cursor:pointer} tr.click:hover td{background:#f6f9fc}
.num{text-align:right;font-variant-numeric:tabular-nums}
/* badges */
.b{display:inline-block;padding:2px 9px;border-radius:20px;font-size:12px;font-weight:600}
.b.g{background:#e2f5ec;color:#157a53}.b.o{background:#fdf0da;color:#a86a00}
.b.r{background:#fde5e5;color:#b23030}.b.gr{background:#eceff2;color:#66727e}
.b.bl{background:#e3eefc;color:#155ba8}
/* forms */
.frm{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:12px}
.fld label{display:block;font-size:13px;color:var(--muted);margin-bottom:4px}
input[type=text],input[type=password],input[type=number],input[type=date],select,textarea{
  width:100%;border:1px solid var(--line);border-radius:9px;background:var(--input);
  color:var(--text);padding:9px 11px;font-size:14px;font-family:inherit}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent)}
input[readonly]{background:#f3f5f7;color:var(--muted)}
/* buttons */
.btn{display:inline-block;border:1px solid var(--line);background:#fff;color:var(--text);
  border-radius:9px;padding:9px 16px;font-size:14px;cursor:pointer;font-family:inherit}
.btn:hover{border-color:var(--accent);color:var(--accent)}
.btn.pri{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.pri:hover{opacity:.9;color:#fff}
.btn.grn{background:var(--green);border-color:var(--green);color:#fff}
.btn.warn{color:var(--red);border-color:#eec4c4}
.btn.sm{padding:5px 10px;font-size:13px;border-radius:7px}
.bar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:14px}
.bar .sp{margin-left:auto}
.hint{color:var(--muted);font-size:13px}
.right{text-align:right}
/* login */
.loginbox{max-width:360px;margin:12vh auto;background:#fff;border:1px solid var(--line);
  border-radius:16px;padding:30px}
.loginbox h1{text-align:center;margin-bottom:20px}
.err{background:#fde5e5;color:#b23030;border-radius:9px;padding:9px 12px;font-size:14px;margin-bottom:12px}
/* order totals */
.totals{display:flex;justify-content:flex-end;gap:26px;padding:12px 4px;font-size:15px}
.totals b{font-size:18px}
@media(max-width:640px){
  main{padding:12px 8px 70px}
  .totals{flex-direction:column;gap:4px;align-items:flex-end}
}