:root {
  --ground:#F3F6F9; --surface:#FFFFFF; --surface-2:#EAF0F6;
  --ink:#132030; --ink-2:#3B4A5A; --muted:#627284; --line:#D8E1EA; --line-2:#C3CFDB;
  --brand:#0058A4; --brand-deep:#003E75; --brand-soft:#E3EEF8; --green:#8FBB26; --green-ink:#5E7D16; --green-soft:#EEF5DC;
  --good:#1E7A45; --good-soft:#E2F2E8; --bad:#B03A2E; --bad-soft:#F8E4E1; --warn:#8A5A06; --warn-soft:#FBF1D9;
  --c1:#0058A4; --c2:#8FBB26; --c3:#D9480F; --c4:#7B4FA6; --c5:#1F9E9E; --c6:#C98A12; --c7:#627284;
  --shadow:0 1px 2px rgba(21,32,30,.06), 0 8px 20px -14px rgba(21,32,30,.28);
  --sans:'IBM Plex Sans', ui-sans-serif, system-ui, sans-serif;
  --mono:'IBM Plex Mono', ui-monospace, Menlo, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ground:#0C131B; --surface:#141D27; --surface-2:#1A2531;
    --ink:#E6EDF4; --ink-2:#C0CCD8; --muted:#8A9AAB; --line:#243241; --line-2:#314254;
    --brand:#4FA3E3; --brand-deep:#8CC4F0; --brand-soft:#10273D; --green:#A9D147; --green-ink:#A9D147; --green-soft:#1C2A12;
    --good:#6CCB93; --good-soft:#15291E; --bad:#F08A7E; --bad-soft:#321A17; --warn:#E0AE62; --warn-soft:#2B2214;
    --c1:#4FA3E3; --c2:#A9D147; --c3:#FF8A4C; --c4:#C9A6EC; --c5:#4FD1C5; --c6:#E0AE62; --c7:#8A9AAB;
    --shadow:0 1px 2px rgba(0,0,0,.4), 0 8px 20px -14px rgba(0,0,0,.7);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --ground:#0C131B; --surface:#141D27; --surface-2:#1A2531;
  --ink:#E6EDF4; --ink-2:#C0CCD8; --muted:#8A9AAB; --line:#243241; --line-2:#314254;
  --brand:#4FA3E3; --brand-deep:#8CC4F0; --brand-soft:#10273D; --green:#A9D147; --green-ink:#A9D147; --green-soft:#1C2A12;
  --good:#6CCB93; --good-soft:#15291E; --bad:#F08A7E; --bad-soft:#321A17; --warn:#E0AE62; --warn-soft:#2B2214;
  --c1:#4FA3E3; --c2:#A9D147; --c3:#FF8A4C; --c4:#C9A6EC; --c5:#4FD1C5; --c6:#E0AE62; --c7:#8A9AAB;
  color-scheme: dark;
}
* { box-sizing:border-box; }
html, body { margin:0; }
body { background:var(--ground); color:var(--ink); font-family:var(--sans); font-size:14.5px; line-height:1.45; -webkit-font-smoothing:antialiased; }
[hidden] { display:none !important; }
a { color:var(--brand); }
h1, h2, h3 { letter-spacing:-.01em; margin:0; }
.muted { color:var(--muted); }
.mono, .num { font-family:var(--mono); font-variant-numeric:tabular-nums; }
.num { text-align:right; white-space:nowrap; }

/* login */
.login { min-height:100vh; display:grid; place-items:center; padding:16px; }
.login-card { width:min(380px, 100%); background:var(--surface); border:1px solid var(--line); border-radius:12px; padding:28px; box-shadow:var(--shadow); display:flex; flex-direction:column; gap:12px; }
.login-card h1 { font-size:22px; color:var(--brand-deep); }
.login-card p { margin:0; }
.brandmark { width:52px; height:52px; border-radius:12px; background:#0058A4; display:grid; place-items:center; }
.brandmark span { font:700 22px/1 Arial, sans-serif; color:#8FBB26; }
.brandmark.sm { width:36px; height:36px; border-radius:8px; }
.brandmark.sm span { font-size:15px; }
.msg { min-height:1.2em; color:var(--bad); font-size:13px; }

/* shell */
.shell { display:grid; grid-template-columns:232px minmax(0,1fr); min-height:100vh; }
.rail { background:var(--surface); border-right:1px solid var(--line); position:sticky; top:0; height:100vh; display:flex; flex-direction:column; }
.brand { display:flex; gap:10px; align-items:center; padding:16px; border-bottom:1px solid var(--line); }
.brand b { display:block; color:var(--brand-deep); }
.brand small { font-family:var(--mono); font-size:11px; color:var(--muted); }
#nav { padding:10px; display:flex; flex-direction:column; gap:2px; overflow-y:auto; flex:1; }
#nav a { display:flex; gap:10px; align-items:center; padding:8px 10px; border-radius:6px; color:var(--ink-2); text-decoration:none; font-size:14px; }
#nav a:hover { background:var(--surface-2); color:var(--ink); }
#nav a.on { background:var(--brand-soft); color:var(--brand-deep); font-weight:600; box-shadow:inset 3px 0 0 var(--green); }
#nav a i { font-style:normal; width:18px; text-align:center; }
#nav .sep { height:1px; background:var(--line); margin:8px 4px; }
.me { padding:12px 16px; border-top:1px solid var(--line); display:flex; justify-content:space-between; align-items:center; gap:8px; font-size:12px; color:var(--muted); overflow-wrap:anywhere; }
main { min-width:0; padding:0 28px 60px; outline:none; }

/* page header */
.ph { display:flex; justify-content:space-between; align-items:flex-end; gap:12px; flex-wrap:wrap; padding:22px 0 14px; margin-bottom:18px; border-bottom:3px solid var(--brand); position:relative; }
.ph::after { content:""; position:absolute; left:0; bottom:-3px; width:88px; height:3px; background:var(--green); }
.ph h1 { font-size:22px; color:var(--brand-deep); }
.ph p { margin:4px 0 0; color:var(--ink-2); font-size:13.5px; max-width:72ch; }
.ph .k { font-family:var(--mono); font-size:11px; text-transform:uppercase; letter-spacing:.1em; color:var(--green-ink); font-weight:600; }
.actions { display:flex; gap:8px; flex-wrap:wrap; align-items:center; }
.actions input, .actions select { width:auto; }

/* controls */
.btn { font-family:var(--sans); font-size:13.5px; font-weight:600; border-radius:6px; padding:8px 14px; border:1px solid var(--line-2); background:var(--surface); color:var(--ink); cursor:pointer; white-space:nowrap; }
.btn:hover { border-color:var(--brand); color:var(--brand); }
.btn.primary { background:var(--brand); border-color:var(--brand); color:#fff; }
.btn.primary:hover { filter:brightness(1.1); color:#fff; }
.btn.danger { color:var(--bad); }
.btn.danger:hover { background:var(--bad); color:#fff; border-color:var(--bad); }
.btn.ghost { background:transparent; }
.btn.sm { padding:4px 9px; font-size:12px; }
.btn:disabled { opacity:.5; cursor:not-allowed; }
.btn:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible { outline:2px solid var(--brand); outline-offset:1px; }
input, select, textarea { font:inherit; color:var(--ink); background:var(--surface); border:1px solid var(--line-2); border-radius:6px; padding:7px 10px; width:100%; min-width:0; }
textarea { resize:vertical; min-height:80px; }
label { display:flex; flex-direction:column; gap:4px; font-size:12.5px; color:var(--ink-2); }
.filters { display:flex; gap:10px; flex-wrap:wrap; align-items:flex-end; margin-bottom:14px; }
.filters label { min-width:140px; flex:0 1 auto; }
.filters label.grow { flex:1 1 240px; }
.grid2 { display:grid; grid-template-columns:repeat(2, minmax(0,1fr)); gap:12px; }
.grid3 { display:grid; grid-template-columns:repeat(3, minmax(0,1fr)); gap:12px; }
.grid4 { display:grid; grid-template-columns:repeat(4, minmax(0,1fr)); gap:12px; }
.span2 { grid-column:span 2; } .span3 { grid-column:span 3; } .span4 { grid-column:1 / -1; }

/* cards & tables */
.card { background:var(--surface); border:1px solid var(--line); border-radius:10px; box-shadow:var(--shadow); padding:16px; min-width:0; }
.card h2 { font-size:13px; font-family:var(--mono); text-transform:uppercase; letter-spacing:.08em; color:var(--brand); border-left:3px solid var(--green); padding-left:8px; margin-bottom:12px; display:flex; justify-content:space-between; gap:8px; align-items:baseline; }
.card h2 small { text-transform:none; letter-spacing:0; color:var(--muted); font-size:11.5px; }
.cards { display:grid; gap:16px; grid-template-columns:repeat(2, minmax(0,1fr)); margin-top:16px; }
.cards .wide { grid-column:1 / -1; }
.tw { overflow-x:auto; border:1px solid var(--line); border-radius:8px; background:var(--surface); }
table { border-collapse:collapse; width:100%; font-size:13px; }
th, td { text-align:left; padding:8px 10px; border-bottom:1px solid var(--line); vertical-align:top; }
th { font-family:var(--mono); font-size:10.5px; text-transform:uppercase; letter-spacing:.07em; color:var(--brand); font-weight:500; background:var(--surface-2); white-space:nowrap; position:sticky; top:0; }
tr:last-child td { border-bottom:none; }
tbody tr:hover td { background:var(--surface-2); }
tr.click { cursor:pointer; }
td.wrap { min-width:220px; }
.pager { display:flex; gap:8px; align-items:center; justify-content:flex-end; margin-top:10px; font-size:12.5px; color:var(--muted); }

/* KPI tiles */
.kpis { display:grid; grid-template-columns:repeat(auto-fit, minmax(170px, 1fr)); gap:1px; background:var(--line); border:1px solid var(--line); border-radius:10px; overflow:hidden; box-shadow:var(--shadow); }
.kpi { background:var(--surface); padding:14px 16px; min-width:0; }
.kpi .l { font-family:var(--mono); font-size:10.5px; text-transform:uppercase; letter-spacing:.08em; color:var(--muted); }
.kpi .v { font-family:var(--mono); font-size:21px; font-weight:600; margin-top:4px; font-variant-numeric:tabular-nums; overflow-wrap:anywhere; }
.kpi .s { font-size:12px; color:var(--muted); margin-top:2px; }
.kpi.hi { background:var(--brand-soft); } .kpi.hi .v { color:var(--brand-deep); }
.kpi.good .v { color:var(--good); } .kpi.bad .v { color:var(--bad); }
.chart { position:relative; height:280px; }
.chart.tall { height:340px; }

/* pills & notes */
.pill { display:inline-block; font-family:var(--mono); font-size:11px; border-radius:20px; padding:1px 8px; border:1px solid var(--line-2); color:var(--muted); white-space:nowrap; }
.pill.good { color:var(--good); background:var(--good-soft); border-color:var(--good); }
.pill.bad { color:var(--bad); background:var(--bad-soft); border-color:var(--bad); }
.pill.warn { color:var(--warn); background:var(--warn-soft); border-color:var(--warn); }
.pill.info { color:var(--brand); background:var(--brand-soft); border-color:var(--brand); }
.note { font-size:13px; color:var(--ink-2); background:var(--green-soft); border-left:3px solid var(--green); border-radius:0 6px 6px 0; padding:9px 12px; margin:12px 0; }
.note.warn { background:var(--warn-soft); border-left-color:var(--warn); }
.tabs { display:flex; gap:4px; border-bottom:1px solid var(--line); margin-bottom:14px; flex-wrap:wrap; }
.tabs button { font:inherit; font-size:13.5px; background:none; border:none; border-bottom:3px solid transparent; padding:8px 12px; color:var(--ink-2); cursor:pointer; }
.tabs button.on { color:var(--brand-deep); border-bottom-color:var(--green); font-weight:600; }
.tabs .count { font-family:var(--mono); font-size:11px; color:var(--muted); margin-left:4px; }
.empty { padding:32px; text-align:center; color:var(--muted); }

/* modal */
.modal { position:fixed; inset:0; background:rgba(12,19,27,.55); display:flex; align-items:flex-start; justify-content:center; padding:24px 16px; z-index:50; overflow-y:auto; }
.modal-box { background:var(--surface); color:var(--ink); border-radius:12px; width:min(980px, 100%); box-shadow:var(--shadow); padding:20px; }
.modal-box h2 { font-size:18px; color:var(--brand-deep); margin-bottom:14px; }
.modal-foot { display:flex; justify-content:flex-end; gap:8px; margin-top:16px; flex-wrap:wrap; }
.lines td { padding:4px; } .lines input { padding:5px 7px; font-size:13px; }
.lines th { position:static; }
.toast { position:fixed; left:50%; bottom:20px; transform:translateX(-50%); background:var(--ink); color:var(--surface); font-size:13px; padding:9px 16px; border-radius:6px; opacity:0; pointer-events:none; transition:opacity .15s; z-index:60; max-width:90vw; }
.toast.on { opacity:1; }

/* respuestas */
.resp { background:var(--surface); border:1px solid var(--line); border-radius:8px; padding:12px 14px; margin-bottom:8px; box-shadow:var(--shadow); }
.resp header { display:flex; gap:10px; align-items:center; flex-wrap:wrap; margin-bottom:6px; }
.resp code { font-family:var(--mono); font-size:11px; font-weight:600; color:var(--brand-deep); background:var(--brand-soft); border-radius:4px; padding:2px 7px; }
.resp h4 { margin:0; font-size:13.5px; flex:1; color:var(--ink-2); }
.resp .txt { white-space:pre-wrap; font-size:14.5px; border-left:2px solid var(--line-2); padding-left:12px; }
.resp .nota { font-size:12px; color:var(--muted); margin-top:6px; }
.fld { color:var(--warn); background:var(--warn-soft); border:1px dashed var(--warn); border-radius:4px; padding:0 3px; font-family:var(--mono); font-size:12.5px; }
.catgroup h3 { font-size:16px; color:var(--brand-deep); margin:22px 0 8px; display:flex; gap:10px; align-items:baseline; }
.catgroup h3 .n { font-family:var(--mono); font-size:12px; color:#fff; background:var(--brand); border-radius:4px; padding:2px 7px; }
.catgroup h4.sub { font-size:12px; text-transform:uppercase; letter-spacing:.06em; color:var(--muted); margin:14px 0 6px; }

/* manual */
.md h3 { font-size:17px; color:var(--brand-deep); margin:0 0 10px; }
.md p { margin:0 0 8px; }
.md ul { margin:0 0 10px; padding-left:20px; }
.md li.chk { list-style:none; margin-left:-20px; }
.md li.chk::before { content:"☐ "; color:var(--green-ink); }
.md blockquote { margin:8px 0; padding:8px 12px; border-left:3px solid var(--green); background:var(--green-soft); border-radius:0 6px 6px 0; }
.md table { margin:8px 0 12px; border:1px solid var(--line); }
.manual-sec { margin-bottom:16px; }
.manual-sec .sep { font-family:var(--mono); font-size:11px; color:var(--green-ink); text-transform:uppercase; letter-spacing:.08em; margin-bottom:4px; }

/* embedded tools */
.embed { width:100%; height:calc(100vh - 120px); border:1px solid var(--line); border-radius:10px; background:#fff; }

/* labels (print) */
#print-area { display:none; }
.label { width:100mm; height:150mm; padding:5mm; border:1px solid #000; color:#000; background:#fff; font-family:Arial, sans-serif; display:flex; flex-direction:column; gap:3mm; page-break-after:always; break-after:page; overflow:hidden; }
.label .lh { display:flex; justify-content:space-between; align-items:center; border-bottom:2px solid #000; padding-bottom:2mm; }
.label .lh b { font-size:16pt; }
.label .lh span { font-size:9pt; text-align:right; }
.label .box { border:1px solid #000; padding:2mm 3mm; font-size:9pt; }
.label .box .t { font-size:7pt; text-transform:uppercase; letter-spacing:.05em; font-weight:700; margin-bottom:1mm; }
.label .to { font-size:12pt; line-height:1.3; }
.label .to b { font-size:15pt; }
.label .row { display:flex; gap:3mm; }
.label .row > div { flex:1; }
.label .bc { text-align:center; }
.label .bc svg { width:100%; height:24mm; }
.label .qr { display:flex; gap:3mm; align-items:center; font-size:8pt; }
.label .qr img { width:22mm; height:22mm; }
.label .big { font-size:20pt; font-weight:700; text-align:center; }
@media print {
  @page { size:100mm 150mm; margin:0; }
  body > *:not(#print-area) { display:none !important; }
  #print-area { display:block; }
  .label { border:none; }
}
.label-preview { display:flex; gap:16px; flex-wrap:wrap; justify-content:center; background:var(--surface-2); padding:16px; border-radius:8px; }

@media (max-width: 960px) {
  .shell { grid-template-columns:1fr; }
  .rail { position:static; height:auto; }
  #nav { flex-direction:row; flex-wrap:wrap; }
  #nav .sep { display:none; }
  main { padding:0 16px 40px; }
  .cards { grid-template-columns:1fr; }
  .grid3, .grid4 { grid-template-columns:repeat(2, minmax(0,1fr)); }
}
@media (max-width: 560px) {
  .grid2, .grid3, .grid4 { grid-template-columns:1fr; }
  .span2, .span3 { grid-column:auto; }
  .filters label { flex:1 1 100%; }
}
@media (prefers-reduced-motion: reduce) { * { transition:none !important; } }
.manual-grid { display:grid; grid-template-columns:220px minmax(0,1fr); gap:16px; align-items:start; }
.manual-nav { position:sticky; top:12px; }
@media (max-width: 760px) { .manual-grid { grid-template-columns:1fr; } .manual-nav { position:static; } }
/* Registro de ventas: líneas de una misma venta agrupadas */
#vt tr.sigue td { border-top-color:transparent; }
#vt tr.inicio td { border-top:2px solid var(--line-2); }
#vt tr.sigue td:first-child, #vt tr.sigue td:nth-child(2) { background:var(--surface-2); }