:root {
  --rojo: #D80C24; --rojo-osc: #A8091C; --rojo-suave: #FDECEE;
  --tinta: #1C1C1E; --gris: #6B6B70; --gris-cl: #9A9AA0;
  --borde: #E4E4E7; --fondo: #F5F5F6; --blanco: #FFFFFF;
  --verde: #1F8A4C; --verde-suave: #E6F4EC; --ambar: #B26A00; --ambar-suave: #FFF3DC;
  --azul: #1F5FAD; --azul-suave: #E7EFFA;
  --radio: 8px; --sombra: 0 1px 2px rgba(0,0,0,.05), 0 2px 8px rgba(0,0,0,.04);
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; height: 100%; }
body { font-family: 'Barlow', system-ui, sans-serif; font-size: 15px; color: var(--tinta); background: var(--fondo); }
h1, h2, h3, .brand { font-family: 'Barlow Condensed', sans-serif; letter-spacing: .01em; }
h1 { font-size: 30px; margin: 0; font-weight: 800; }
h2 { font-size: 21px; margin: 0 0 12px; font-weight: 700; }
h3 { font-size: 17px; margin: 0 0 8px; font-weight: 700; }
a { color: var(--rojo); }
.boot { padding: 40px; color: var(--gris); }

/* Layout */
.shell { display: flex; min-height: 100vh; }
.side { width: 220px; background: var(--tinta); color: #fff; display: flex; flex-direction: column; position: sticky; top: 0; height: 100vh; flex-shrink: 0; }
.side .brand { padding: 20px 20px 16px; font-size: 26px; font-weight: 800; line-height: 1; }
.side .brand b { background: var(--rojo); padding: 2px 8px; margin-right: 6px; }
.side .brand small { display: block; font-size: 13px; color: var(--gris-cl); font-family: 'Barlow', sans-serif; font-weight: 500; margin-top: 8px; letter-spacing: 0; }
.side nav { flex: 1; padding: 8px 0; }
.side nav a { display: flex; align-items: center; gap: 10px; padding: 10px 20px; color: #D4D4D8; text-decoration: none; font-weight: 500; border-left: 3px solid transparent; }
.side nav a:hover { background: #2A2A2D; color: #fff; }
.side nav a.on { background: #2A2A2D; color: #fff; border-left-color: var(--rojo); }
.side nav .sep { height: 1px; background: #333; margin: 8px 20px; }
.side .me { padding: 14px 20px; border-top: 1px solid #333; font-size: 13px; color: var(--gris-cl); }
.side .me strong { color: #fff; display: block; font-size: 14px; }
.side .me button { margin-top: 8px; }
.main { flex: 1; min-width: 0; padding: 24px 28px 60px; }
.topbar { display: none; }
.head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 18px; }
.head .acts { display: flex; gap: 8px; flex-wrap: wrap; }

@media (max-width: 860px) {
  .side { position: fixed; left: -240px; z-index: 50; transition: left .2s; }
  .side.open { left: 0; }
  .topbar { display: flex; align-items: center; gap: 12px; background: var(--tinta); color: #fff; padding: 10px 16px; position: sticky; top: 0; z-index: 40; }
  .topbar .brand { font-size: 22px; font-weight: 800; }
  .topbar .brand b { background: var(--rojo); padding: 0 6px; margin-right: 4px; }
  .main { padding: 16px 16px 60px; }
  .shell { flex-direction: column; }
  h1 { font-size: 25px; }
}

/* Cards / grid */
.card { background: var(--blanco); border: 1px solid var(--borde); border-radius: var(--radio); padding: 18px; box-shadow: var(--sombra); }
.grid { display: grid; gap: 16px; }
.g4 { grid-template-columns: repeat(4, minmax(0,1fr)); }
.g2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.g3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
@media (max-width: 1100px) { .g4 { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (max-width: 860px) { .g2, .g3 { grid-template-columns: 1fr; } }
@media (max-width: 520px) { .g4 { grid-template-columns: 1fr; } }
.kpi .lbl { color: var(--gris); font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: .04em; }
.kpi .val { font-family: 'Barlow Condensed', sans-serif; font-size: 32px; font-weight: 800; margin-top: 4px; }
.kpi .sub { color: var(--gris); font-size: 13px; margin-top: 2px; }
.mt { margin-top: 16px; } .mb { margin-bottom: 16px; }
.muted { color: var(--gris); } .small { font-size: 13px; }
.right { text-align: right; } .nowrap { white-space: nowrap; }

/* Buttons & inputs */
button, .btn { font: inherit; font-weight: 600; border: 1px solid var(--borde); background: var(--blanco); color: var(--tinta); padding: 8px 14px; border-radius: 6px; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; gap: 6px; white-space: nowrap; }
button:hover, .btn:hover { border-color: #C8C8CC; background: #FAFAFA; }
.pri { background: var(--rojo); border-color: var(--rojo); color: #fff; }
.pri:hover { background: var(--rojo-osc); border-color: var(--rojo-osc); }
.ghost { background: transparent; border-color: transparent; color: inherit; }
.side .ghost { color: var(--gris-cl); padding: 4px 0; }
.danger { color: var(--rojo); }
.sm { padding: 5px 10px; font-size: 13px; }
button:disabled { opacity: .5; cursor: default; }
label { display: block; font-size: 13px; font-weight: 600; color: var(--gris); margin-bottom: 4px; }
input, select, textarea { font: inherit; width: 100%; padding: 8px 10px; border: 1px solid var(--borde); border-radius: 6px; background: #fff; color: var(--tinta); }
input:focus, select:focus, textarea:focus { outline: 2px solid rgba(216,12,36,.25); border-color: var(--rojo); }
textarea { min-height: 70px; resize: vertical; }
.form { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 12px 16px; }
.form .full { grid-column: 1 / -1; }
@media (max-width: 640px) { .form { grid-template-columns: 1fr; } }
.filters { display: flex; gap: 10px; flex-wrap: wrap; align-items: end; margin-bottom: 14px; }
.filters > div { min-width: 150px; }
.filters .grow { flex: 1; min-width: 200px; }
.chk { display: flex; align-items: center; gap: 8px; font-weight: 500; color: var(--tinta); }
.chk input { width: auto; }

/* Tables */
.tw { overflow-x: auto; background: var(--blanco); border: 1px solid var(--borde); border-radius: var(--radio); box-shadow: var(--sombra); }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 9px 12px; text-align: left; border-bottom: 1px solid var(--borde); vertical-align: middle; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: .04em; color: var(--gris); background: #FAFAFA; font-weight: 600; white-space: nowrap; }
tbody tr:last-child td { border-bottom: 0; }
tr.click { cursor: pointer; } tr.click:hover td { background: #FBFBFB; }
td.num, th.num { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
.empty { padding: 30px; text-align: center; color: var(--gris); }
.items td { padding: 6px 8px; }
.items input { padding: 6px 8px; }
.items .c-sku { width: 280px; } .items .c-cant { width: 80px; } .items .c-pre { width: 130px; } .items .c-dto { width: 80px; } .items .c-sub { width: 120px; }
.totales { margin-left: auto; width: 300px; max-width: 100%; }
.totales div { display: flex; justify-content: space-between; padding: 5px 0; }
.totales .tot { font-weight: 700; font-size: 18px; border-top: 2px solid var(--tinta); margin-top: 4px; padding-top: 8px; }

/* Badges */
.b { display: inline-block; padding: 2px 8px; border-radius: 99px; font-size: 12px; font-weight: 600; background: #EEE; color: #444; white-space: nowrap; }
.b-verde { background: var(--verde-suave); color: var(--verde); }
.b-rojo { background: var(--rojo-suave); color: var(--rojo); }
.b-ambar { background: var(--ambar-suave); color: var(--ambar); }
.b-azul { background: var(--azul-suave); color: var(--azul); }

/* Bars */
.bar { height: 8px; background: #EFEFF1; border-radius: 99px; overflow: hidden; min-width: 80px; }
.bar i { display: block; height: 100%; background: var(--rojo); border-radius: 99px; }
.bar.ok i { background: var(--verde); }

/* Modal & toast */
.ov { position: fixed; inset: 0; background: rgba(20,20,22,.45); display: flex; align-items: flex-start; justify-content: center; padding: 40px 16px; z-index: 100; overflow-y: auto; }
.md { background: #fff; border-radius: 10px; width: 640px; max-width: 100%; padding: 22px; box-shadow: 0 20px 50px rgba(0,0,0,.25); }
.md.wide { width: 900px; }
.md .foot { display: flex; justify-content: flex-end; gap: 8px; margin-top: 18px; flex-wrap: wrap; }
#toast-root { position: fixed; bottom: 20px; right: 20px; z-index: 200; display: flex; flex-direction: column; gap: 8px; }
.toast { background: var(--tinta); color: #fff; padding: 12px 16px; border-radius: 8px; max-width: 380px; box-shadow: 0 6px 20px rgba(0,0,0,.2); }
.toast.err { background: var(--rojo); }

/* Auth */
.auth { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px; background: var(--tinta); }
.auth .card { width: 380px; max-width: 100%; padding: 28px; }
.auth .brand { font-size: 32px; font-weight: 800; margin-bottom: 4px; }
.auth .brand b { background: var(--rojo); color: #fff; padding: 0 8px; margin-right: 6px; }
.auth form > div { margin-bottom: 12px; }
.auth .pri { width: 100%; justify-content: center; padding: 10px; }
.auth .links { display: flex; justify-content: space-between; margin-top: 14px; font-size: 14px; }
.auth .links a { cursor: pointer; }
.pre { white-space: pre-wrap; font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 13px; background: var(--fondo); padding: 12px; border-radius: 6px; border: 1px solid var(--borde); }
.info { display: grid; grid-template-columns: 140px 1fr; gap: 6px 12px; font-size: 14px; }
.info dt { color: var(--gris); } .info dd { margin: 0; }

/* Estado de resultado */
.er td { padding: 7px 4px; }
.er tr.sub td { border-top: 1px solid var(--tinta); font-weight: 600; }
.er tr.tot td { border-top: 2px solid var(--tinta); font-weight: 700; font-size: 17px; }
.totales input { font-variant-numeric: tabular-nums; }
.totales div { align-items: center; }

/* Avisos de factura de proveedor pendiente */
.dot { display: inline-flex; align-items: center; justify-content: center; min-width: 20px; height: 20px; padding: 0 6px; margin-left: auto; border-radius: 99px; background: var(--rojo); color: #fff; font-size: 12px; font-weight: 700; line-height: 1; }
#menu { position: relative; }
#menu .dot { position: absolute; top: -2px; right: -6px; min-width: 16px; height: 16px; font-size: 10px; padding: 0 4px; }
.info-dot { display: inline-flex; align-items: center; justify-content: center; width: 18px; height: 18px; padding: 0; border: 0; border-radius: 50%; background: var(--rojo); color: #fff; font: italic 700 12px/1 Georgia, serif; cursor: pointer; vertical-align: middle; flex: none; }
.aviso { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; padding: 10px 14px; margin-bottom: 14px; border: 1px solid #F5C2C8; border-radius: var(--radio); background: var(--rojo-suave); }
.aviso > span:nth-child(2) { flex: 1; min-width: 200px; }
.pend { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; padding: 10px 0; border-bottom: 1px solid var(--borde); }
.subform { margin-top: 10px; padding: 12px; border: 1px dashed var(--borde); border-radius: var(--radio); background: var(--fondo); }
.subform .form { margin-bottom: 6px; }

/* Calendario (flatpickr) con los colores DCK */
.flatpickr-calendar { font-family: 'Barlow', system-ui, sans-serif; }
.flatpickr-day.selected, .flatpickr-day.selected:hover, .flatpickr-monthSelect-month.selected, .flatpickr-monthSelect-month.selected:hover { background: var(--rojo); border-color: var(--rojo); color: #fff; }
.flatpickr-day.today { border-color: var(--rojo); }
.flatpickr-months .flatpickr-month, .flatpickr-current-month .flatpickr-monthDropdown-months { text-transform: capitalize; }
input.flatpickr-input[readonly] { background: #fff; cursor: pointer; }

/* Encabezados de tabla ordenables */
th.ord { cursor: pointer; user-select: none; white-space: nowrap; }
th.ord:hover { color: var(--tinta); }

/* Verificación en dos pasos */
.pasos { padding-left: 20px; margin: 8px 0 12px; }
.pasos li { margin-bottom: 10px; }
.qr { margin: 10px 0 6px; }
.qr img { width: 180px; height: 180px; background: #fff; padding: 6px; border: 1px solid var(--borde); border-radius: var(--radio); }
.row-code { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
code { background: var(--fondo); padding: 2px 6px; border-radius: 4px; word-break: break-all; }

/* Estado de resultados: detalle por categoría */
table.er tr.det td { padding-top: 2px; padding-bottom: 2px; font-size: 13px; color: var(--gris); }
table.er tr.det td:first-child { padding-left: 22px; }
details summary { cursor: pointer; color: var(--azul); }

/* Selector segmentado (tipo de cliente) */
.seg { display: flex; gap: 8px; flex-wrap: wrap; }
.seg label { display: flex; align-items: center; gap: 6px; margin: 0; padding: 8px 12px; border: 1px solid var(--borde); border-radius: var(--radio); cursor: pointer; font-weight: 500; color: var(--tinta); }
.seg label:has(input:checked) { border-color: var(--rojo); background: var(--rojo-suave); }
.seg input { width: auto; }

/* Campos bloqueados (solo lectura) */
input:disabled, select:disabled, textarea:disabled { background: var(--fondo); color: var(--gris); cursor: not-allowed; }