@import url('https://fonts.googleapis.com/css2?family=Source+Serif+4:opsz,wght@8..60,400;8..60,600;8..60,700&family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root{
  --bg:#F5F3EE;
  --surface:#FBFAF7;
  --ink:#14213D;
  --accent:#2F6E63;
  --warn:#B8722E;
  --danger:#A23B3B;
  --line:#D8D4C9;
  --serif:'Source Serif 4', Georgia, serif;
  --sans:'Inter', system-ui, sans-serif;
  --mono:'IBM Plex Mono', ui-monospace, monospace;

  --chip-q-bg:#DCE3D6;
  --chip-s-bg:#D9E2E6;
  --chip-sg-bg:#E7DCC8;
  --chip-nx-bg:#E3DCE6;
}

*{box-sizing:border-box}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  line-height:1.5;
}
h1,h2,h3{font-family:var(--serif);font-weight:600;margin:0}
.mono{font-family:var(--mono)}

.oculto{display:none !important}

/* --- Login --- */
#pantalla-login{
  min-height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
}
.login-card{
  background:var(--surface);
  border:1px solid var(--line);
  padding:2.5rem 2.25rem;
  width:100%;
  max-width:340px;
  text-align:center;
}
.login-card h1{font-size:1.4rem;margin-bottom:.25rem}
.login-card p{font-size:.85rem;color:color-mix(in srgb, var(--ink) 60%, transparent);margin:0 0 1.5rem}
#pin-input{
  width:100%;
  font-family:var(--mono);
  font-size:1.4rem;
  letter-spacing:.3em;
  text-align:center;
  padding:.6rem;
  border:1px solid var(--line);
  background:var(--bg);
  color:var(--ink);
  margin-bottom:1rem;
}
#pin-error{color:var(--danger);font-size:.82rem;min-height:1.2em;margin-bottom:.5rem}

/* --- App shell --- */
header.app-header{
  border-bottom:1px solid var(--line);
  padding:1.1rem 2rem;
  display:flex;
  align-items:baseline;
  justify-content:space-between;
}
header.app-header h1{font-size:1.3rem}
.usuario-actual{font-size:.8rem;color:color-mix(in srgb, var(--ink) 60%, transparent)}
main{max-width:960px;margin:0 auto;padding:2rem}

/* --- Botones --- */
button{
  font-family:var(--sans);
  font-size:.85rem;
  font-weight:600;
  border:1px solid var(--ink);
  background:var(--ink);
  color:var(--bg);
  padding:.55rem 1.1rem;
  cursor:pointer;
}
button.secundario{background:transparent;color:var(--ink)}
button.texto{border:none;background:none;color:var(--accent);padding:.2rem .4rem;font-weight:600}
button.texto.quitar{color:var(--danger)}
button:disabled{opacity:.5;cursor:not-allowed}

/* --- Formulario --- */
.campo{margin-bottom:1.1rem}
.campo label{display:block;font-size:.72rem;text-transform:uppercase;letter-spacing:.05em;color:color-mix(in srgb, var(--ink) 65%, transparent);margin-bottom:.3rem}
.campo input,.campo select,.campo textarea{
  width:100%;
  font-family:var(--sans);
  font-size:.9rem;
  padding:.5rem .6rem;
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--ink);
}
.fila-campos{display:grid;grid-template-columns:1fr 1fr;gap:1.25rem}

/* Fecha: input nativo invisible encima (recibe el tap y abre el calendario del
   SO/navegador), texto formateado MMM-DD-YY debajo - el navegador no permite
   forzar ese formato en el input nativo directamente. */
.campo-fecha{position:relative}
.campo-fecha input[type="date"]{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  opacity:0;
  cursor:pointer;
  padding:0;
  border:none;
}
.campo-fecha input[type="text"]{cursor:pointer;font-family:var(--mono)}

/* Campo derivado (ej. Bill To): de solo lectura, se distingue visualmente de
   los campos que si se capturan a mano. */
.campo-derivado{background:var(--bg) !important;color:color-mix(in srgb, var(--ink) 75%, transparent);cursor:default}

/* --- Sello de entidad --- */
.selector-entidad{display:flex;gap:.6rem;flex-wrap:wrap}
.chip{
  display:inline-flex;
  align-items:center;
  gap:.35rem;
  font-family:var(--mono);
  font-size:.7rem;
  letter-spacing:.05em;
  text-transform:uppercase;
  border:1px solid var(--line);
  border-radius:2px;
  padding:.3rem .6rem;
  color:var(--ink);
  cursor:pointer;
  background:var(--surface);
}
.chip[data-seleccionado="true"]{border:1px solid var(--ink);box-shadow:inset 0 0 0 1px var(--ink)}
.nota-default{font-size:.72rem;color:color-mix(in srgb, var(--ink) 55%, transparent);margin-top:.4rem}

/* --- Tabla de partidas (ledger) --- */
.tabla-partidas{margin-top:.5rem;overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:.85rem;background:var(--surface)}
thead th{
  text-align:left;
  font-size:.68rem;
  text-transform:uppercase;
  letter-spacing:.05em;
  color:color-mix(in srgb, var(--ink) 68%, transparent);
  font-weight:600;
  padding:.5rem .6rem;
  border-bottom:1px solid var(--ink);
}
tbody td{padding:.4rem .6rem;border-bottom:1px solid var(--line);vertical-align:middle}
tbody td input,tbody td select{border:1px solid var(--line);background:var(--bg);padding:.3rem .4rem;font-size:.82rem;width:100%}
td.num{text-align:right;font-variant-numeric:tabular-nums}
td.sku{font-family:var(--mono)}
td.item{font-family:var(--mono);color:color-mix(in srgb, var(--ink) 55%, transparent);text-align:center;width:2.5rem}
.c-producto-display{font-family:var(--mono);font-size:.78rem;background:var(--bg) !important;color:color-mix(in srgb, var(--ink) 75%, transparent);cursor:default}
.aviso-no-pedido{display:block;font-size:.7rem;color:var(--danger);margin-top:.2rem}

.resumen{display:flex;justify-content:flex-end;gap:2rem;margin-top:.75rem;font-size:.9rem}
.resumen .valor{font-family:var(--mono);font-variant-numeric:tabular-nums;font-weight:600}

/* --- Alertas --- */
.aviso{
  border:1px solid var(--line);
  border-left:2px solid var(--warn);
  background:var(--surface);
  padding:.9rem 1.1rem;
  font-size:.85rem;
  margin:1rem 0;
}
.aviso.critico{border-left-color:var(--danger)}
.aviso strong{display:block;margin-bottom:.25rem}

.confirmacion{
  border:1px solid var(--line);
  border-left:2px solid var(--accent);
  background:var(--surface);
  padding:.9rem 1.1rem;
  font-size:.9rem;
  margin-top:1.25rem;
}
.confirmacion .folio{font-family:var(--mono);font-size:1.1rem;font-weight:600}

.acciones{display:flex;gap:.75rem;margin-top:1.5rem}