:root{
    --bg:#F6F3EC; --card:#fff; --ink:#1B2A21; --muted:#6b7280; --faint:#9ca3af;
    --accent:#1B3A28; --accent-dark:#12281B; --green:#2E7D4F; --red:#B3261E; --amber:#B5832E;
    --border:#E5E2D9;
  }
  *{box-sizing:border-box;-webkit-tap-highlight-color:rgba(27,58,40,.12);}
  body{margin:0;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
       background:var(--bg);color:var(--ink);font-size:15px;}
  .app{min-height:100vh;display:flex;flex-direction:column;}
  header.topbar{background:var(--card);border-bottom:1px solid var(--border);padding:10px 16px;
                display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;
                position:sticky;top:0;z-index:40;}
  header.topbar .brand svg{display:block;height:34px;}
  header.topbar .who{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);}
  .badge{background:#E8EFE9;color:var(--accent-dark);padding:3px 10px;border-radius:999px;font-weight:600;font-size:11.5px;}
  .badge.warn{background:#fef3c7;color:#b45309;}
  button.logout{background:none;border:1px solid var(--border);padding:7px 12px;border-radius:8px;
                cursor:pointer;font-size:13px;color:var(--muted);min-height:38px;}
  main{flex:1;padding:16px;max-width:1180px;margin:0 auto;width:100%;}

  /* ---------- login ---------- */
  .login-wrap{flex:1;display:flex;align-items:center;justify-content:center;padding:16px;}
  .login-card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:28px;
              width:100%;max-width:430px;box-shadow:0 4px 24px rgba(0,0,0,.05);}
  .login-card p.sub{color:var(--muted);font-size:13.5px;margin:0 0 18px;}
  .fld{margin-bottom:13px;}
  .fld label{font-size:11.5px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.03em;display:block;margin-bottom:5px;}
  .fld input{width:100%;padding:13px;border-radius:10px;border:1px solid var(--border);font-size:16px;}
  .login-submit{width:100%;margin-top:6px;padding:14px;border:none;border-radius:10px;background:var(--accent);
                color:#fff;font-weight:600;font-size:15px;cursor:pointer;min-height:48px;}
  .loginerr{background:#fef2f2;border:1px solid #fecaca;color:#b91c1c;padding:9px 12px;border-radius:9px;font-size:13px;margin-bottom:12px;}
  .demo-note{font-size:12px;color:var(--muted);margin-top:16px;line-height:1.6;border-top:1px solid var(--border);padding-top:13px;}
  .demo-note code{background:#F6F3EC;padding:1px 5px;border-radius:4px;font-size:11.5px;}

  /* ---------- layout ---------- */
  .grid{display:grid;gap:12px;}
  .g2{grid-template-columns:1fr 1fr;}
  .g3{grid-template-columns:repeat(3,1fr);}
  .g4{grid-template-columns:repeat(4,1fr);}
  .g21{grid-template-columns:2fr 1fr;}
  .card{background:var(--card);border:1px solid var(--border);border-radius:13px;padding:16px;}
  .card h3{margin:0;font-size:11.5px;color:var(--muted);font-weight:600;text-transform:uppercase;letter-spacing:.03em;}
  .stat{font-size:24px;font-weight:700;margin:5px 0 2px;}
  .stat.pos{color:var(--green);} .stat.neg{color:var(--red);} .stat.warn{color:var(--amber);}
  .sub-stat{font-size:11.5px;color:var(--faint);line-height:1.45;}
  .section-title{font-size:14.5px;font-weight:700;margin:0 0 12px;}
  .mb{margin-bottom:12px;}

  .tabs{display:flex;gap:2px;margin-bottom:14px;border-bottom:1px solid var(--border);overflow-x:auto;
        scrollbar-width:none;-webkit-overflow-scrolling:touch;}
  .tabs::-webkit-scrollbar{display:none;}
  .tabs button{background:none;border:none;padding:11px 13px;font-size:14px;cursor:pointer;color:var(--muted);
               border-bottom:2px solid transparent;font-weight:500;white-space:nowrap;min-height:44px;}
  .tabs button.active{color:var(--accent-dark);border-bottom:2px solid var(--accent);font-weight:600;}
  .tabs button .pill{background:var(--red);color:#fff;border-radius:999px;font-size:10px;padding:1px 6px;margin-left:5px;font-weight:700;}

  /* ---------- period bar ---------- */
  .periodbar{display:flex;align-items:center;gap:6px;flex-wrap:wrap;background:var(--card);
             border:1px solid var(--border);border-radius:11px;padding:9px 11px;margin-bottom:12px;}
  .periodbar .lbl{font-size:11px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.03em;margin-right:2px;}
  .periodbar button{border:1px solid var(--border);background:#fff;border-radius:8px;padding:7px 11px;
                    font-size:13px;cursor:pointer;color:var(--ink);min-height:38px;}
  .periodbar button.on{background:var(--accent);color:#fff;border-color:var(--accent);font-weight:600;}
  .periodbar input[type=date]{border:1px solid var(--border);border-radius:8px;padding:6px 8px;font-size:13px;min-height:38px;font-family:inherit;}
  .periodbar .range{font-size:11.5px;color:var(--faint);margin-left:auto;}

  /* ---------- tables: scroll on tablet, stack on phone ---------- */
  .tw{overflow-x:auto;-webkit-overflow-scrolling:touch;}
  table{width:100%;border-collapse:collapse;font-size:13.5px;}
  th{text-align:left;color:var(--muted);font-weight:600;font-size:11px;text-transform:uppercase;
     letter-spacing:.02em;padding:8px 9px;border-bottom:1px solid var(--border);white-space:nowrap;}
  td{padding:10px 9px;border-bottom:1px solid #f4f2ec;vertical-align:top;}
  tbody tr:last-child td{border-bottom:none;}
  .num{text-align:right;font-variant-numeric:tabular-nums;}
  th.num{text-align:right;}

  .tag{padding:2px 8px;border-radius:999px;font-size:11px;font-weight:600;display:inline-block;}
  .tag.approved{background:#dcfce7;color:#15803d;}
  .tag.pending{background:#fef3c7;color:#b45309;}
  .tag.rejected{background:#fee2e2;color:#b91c1c;}
  .tag.voided{background:#ede9fe;color:#5b21b6;}
  .tag.info{background:#E3EDE6;color:#1B3A28;}
  .tag.neutral{background:#f3f4f6;color:#4b5563;}
  .amt-in{color:var(--green);font-weight:600;}
  .amt-out{color:var(--red);font-weight:600;}

  form.f{display:grid;gap:11px;}
  form.f .row{display:grid;grid-template-columns:1fr 1fr;gap:11px;}
  form.f .row3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:11px;}
  form.f label{font-size:11.5px;font-weight:600;color:var(--muted);display:block;margin-bottom:4px;}
  form.f input,form.f select,form.f textarea{width:100%;padding:11px 10px;border-radius:9px;border:1px solid var(--border);
        font-size:16px;font-family:inherit;background:#fff;min-height:44px;}
  .btn{padding:12px 18px;border:none;border-radius:10px;background:var(--accent);color:#fff;font-weight:600;
       cursor:pointer;font-size:14.5px;justify-self:start;min-height:46px;}
  .btn:hover{background:var(--accent-dark);}
  .btn.sec{background:#fff;color:var(--ink);border:1px solid var(--border);}
  .btn.wide{width:100%;justify-self:stretch;}
  .btn:disabled{opacity:.45;cursor:not-allowed;}

  .mini{padding:7px 11px;border-radius:8px;border:1px solid var(--border);background:#fff;cursor:pointer;
        font-size:12.5px;margin:0 5px 4px 0;min-height:36px;}
  .mini.approve{color:var(--green);border-color:#bbf7d0;}
  .mini.reject{color:var(--red);border-color:#fecaca;}
  .mini.void{color:#5b21b6;border-color:#ddd6fe;}
  .mini.rcpt{color:var(--accent);border-color:#C6DACC;}
  .empty{color:var(--faint);font-size:13px;padding:18px 0;text-align:center;}
  .split-row{display:flex;align-items:center;justify-content:space-between;padding:10px 0;border-bottom:1px solid #f4f2ec;gap:10px;}
  .split-row:last-child{border-bottom:none;}
  canvas{max-height:200px;}
  .cart-line{display:flex;justify-content:space-between;align-items:center;padding:9px 0;border-bottom:1px solid #f4f2ec;font-size:14px;gap:10px;}
  .cart-total{display:flex;justify-content:space-between;padding-top:12px;font-weight:700;font-size:17px;}
  .banner{padding:11px 14px;border-radius:10px;font-size:13.5px;margin-bottom:12px;line-height:1.5;}
  .banner.warn{background:#fffbeb;border:1px solid #fde68a;color:#92400e;}
  .banner.info{background:#EDF3EE;border:1px solid #C6DACC;color:#1B3A28;}
  .banner.ok{background:#f0fdf4;border:1px solid #bbf7d0;color:#166534;}
  .kv{display:flex;justify-content:space-between;padding:7px 0;font-size:13.5px;border-bottom:1px solid #f8f7f3;gap:10px;}
  .kv:last-child{border-bottom:none;}
  .kv .k{color:var(--muted);}
  .kv .v{font-weight:600;font-variant-numeric:tabular-nums;}
  .settle{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 13px;
          border:1px solid var(--border);border-radius:10px;margin-bottom:9px;background:#FCFBF8;}
  .you-owe{background:#fffbeb;border-color:#fde68a;}
  .you-get{background:#f0fdf4;border-color:#bbf7d0;}

  /* ---------- receipt overlay ---------- */
  .ovl{position:fixed;inset:0;background:rgba(20,25,22,.55);z-index:100;display:flex;
       align-items:flex-start;justify-content:center;padding:20px;overflow:auto;}
  .ovl-box{background:#fff;border-radius:14px;max-width:400px;width:100%;padding:20px;margin:auto;}
  #receipt{font-family:'Courier New',Courier,monospace;font-size:12.5px;color:#000;line-height:1.5;}
  #receipt .r-hd{text-align:center;margin-bottom:10px;}
  #receipt .r-nm{font-weight:700;font-size:15px;letter-spacing:1px;}
  #receipt .r-sm{font-size:10.5px;letter-spacing:1.5px;}
  #receipt hr{border:none;border-top:1px dashed #999;margin:9px 0;}
  #receipt table{font-family:inherit;font-size:12.5px;}
  #receipt td{padding:2px 0;border:none;}
  #receipt .r-tot{font-weight:700;font-size:14px;}
  #receipt .r-ft{text-align:center;font-size:10.5px;margin-top:10px;}

  /* ================= PHONE ================= */
  @media(max-width:900px){ .g2,.g3,.g4,.g21{grid-template-columns:1fr;} }
  @media(max-width:680px){
    main{padding:12px;}
    header.topbar{padding:9px 12px;}
    header.topbar .brand svg{height:28px;}
    .grid.g4{grid-template-columns:1fr 1fr;gap:10px;}
    .card{padding:14px;}
    .stat{font-size:21px;}
    form.f .row,form.f .row3{grid-template-columns:1fr;}
    .btn{width:100%;justify-self:stretch;}

    /* tables become stacked cards */
    .tw{overflow:visible;}
    table,tbody,tr,td{display:block;width:100%;}
    thead{display:none;}
    tbody tr{border:1px solid var(--border);border-radius:11px;margin-bottom:10px;padding:4px 12px;background:#fff;}
    tfoot tr{border:2px solid var(--accent);border-radius:11px;padding:4px 12px;background:#F6F3EC;display:block;}
    tfoot td{display:flex;}
    tbody td,tfoot td{border-bottom:1px solid #f4f2ec;padding:9px 0;display:flex;
                      justify-content:space-between;align-items:baseline;gap:14px;text-align:right;}
    tbody tr td:last-child,tfoot tr td:last-child{border-bottom:none;}
    td::before{content:attr(data-l);color:var(--muted);font-size:10.5px;font-weight:700;
               text-transform:uppercase;letter-spacing:.03em;text-align:left;flex:0 0 42%;}
    td:empty{display:none;}
    .periodbar .range{margin-left:0;width:100%;}
  }
  @media print{
    body *{visibility:hidden;}
    #receipt,#receipt *{visibility:visible;}
    #receipt{position:absolute;left:0;top:0;width:100%;padding:0;}
    .ovl{background:none;padding:0;position:static;}
    .ovl-box{box-shadow:none;border:none;max-width:none;padding:0;}
    .noprint{display:none !important;}
  }

/* ---- added for the served app ---- */
.boot{padding:40px;text-align:center;color:var(--muted);font-size:14px;}
.pinbox{max-width:430px;margin:40px auto;}
.err{background:#fef2f2;border:1px solid #fecaca;color:#b91c1c;padding:10px 12px;border-radius:9px;font-size:13.5px;margin-bottom:12px;}
.ok-msg{background:#f0fdf4;border:1px solid #bbf7d0;color:#166534;padding:10px 12px;border-radius:9px;font-size:13.5px;margin-bottom:12px;}
.busy{opacity:.5;pointer-events:none;}