:root {
  --azul: #0b3a6b;
  --azul-claro: #eef3f9;
  --borde: #cdd9e5;
  --rojo: #a01818;
  --verde: #1b7a34;
  --fondo: #f5f7fa;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", system-ui, sans-serif;
  font-size: 15px;
  background: var(--fondo);
  color: #1a1a1a;
}
.nav {
  background: var(--azul);
  color: #fff;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}
.nav a { color: #dce8f5; text-decoration: none; font-weight: 500; }
.nav a:hover { color: #fff; text-decoration: underline; }
.nav .marca { font-weight: 700; letter-spacing: 1px; margin-right: 8px; }
.nav-der { margin-left: auto; font-size: 13px; color: #b9cde3; }
.cont { max-width: 1200px; margin: 0 auto; padding: 20px; }
h1 { color: var(--azul); font-size: 24px; margin: 8px 0 16px; }
h2 { color: var(--azul); font-size: 18px; margin: 24px 0 8px; }

table.tabla { border-collapse: collapse; width: 100%; background: #fff; }
.tabla th {
  background: var(--azul-claro);
  border: 1px solid var(--borde);
  padding: 7px 9px;
  text-align: left;
  font-size: 13px;
  white-space: nowrap;
}
.tabla td { border: 1px solid var(--borde); padding: 6px 9px; }
.tabla tr.pie td { background: var(--azul-claro); font-weight: 700; }
.num { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
.neg { color: var(--rojo); }
.centrado { text-align: center; }

.flash { padding: 10px 14px; border-radius: 6px; margin-bottom: 12px; }
.flash-ok { background: #e2f3e6; border: 1px solid #a4d3ae; color: #14571f; }
.flash-error { background: #fbe4e4; border: 1px solid #e3a9a9; color: #7c1010; }

.tarjeta {
  background: #fff;
  border: 1px solid var(--borde);
  border-radius: 8px;
  padding: 16px 20px;
  margin-bottom: 16px;
}
form.linea { display: flex; gap: 10px; align-items: flex-end; flex-wrap: wrap; }
label.campo { display: flex; flex-direction: column; gap: 3px; font-size: 13px; font-weight: 600; color: #333; }
input, select, textarea {
  font: inherit;
  padding: 6px 8px;
  border: 1px solid #aab8c6;
  border-radius: 5px;
  background: #fff;
}
input:read-only { background: #f0f0f0; color: #555; }
button, .boton {
  font: inherit;
  font-weight: 600;
  background: var(--azul);
  color: #fff;
  border: 0;
  border-radius: 6px;
  padding: 8px 16px;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}
button:hover, .boton:hover { background: #0d4a89; }
.boton-sec { background: #5a6b7c; }
.boton-peligro { background: var(--rojo); }
.boton-chico { padding: 3px 9px; font-size: 12px; }

.estado { padding: 2px 9px; border-radius: 10px; font-size: 12px; font-weight: 700; }
.estado-abierto { background: #fff3d6; color: #7a5a00; }
.estado-calculado { background: #dbeafe; color: #1e4a8a; }
.estado-aprobado { background: #e2f3e6; color: #14571f; }
.estado-activo { background: #e2f3e6; color: #14571f; }
.estado-inactivo { background: #eee; color: #666; }

/* Cuadrícula de horas */
.grid-horas input.hora {
  width: 62px;
  text-align: right;
  padding: 4px 6px;
}
.grid-horas input.hora.ok { border-color: var(--verde); background: #eefbef; }
.grid-horas input.hora.err { border-color: var(--rojo); background: #fdecec; }
.grid-horas td { padding: 3px 5px; }
.pista { color: #667; font-size: 13px; margin: 6px 0 14px; }

.login-caja {
  max-width: 360px;
  margin: 70px auto;
  background: #fff;
  border: 1px solid var(--borde);
  border-radius: 10px;
  padding: 28px;
}
.login-caja h1 { text-align: center; }
.login-caja input { width: 100%; margin-bottom: 12px; }
.login-caja button { width: 100%; }
ul.problemas { background: #fbe4e4; border: 1px solid #e3a9a9; border-radius: 6px; padding: 12px 12px 12px 30px; color: #7c1010; }