:root {
  --tinta: #16202e;
  --tinta-suave: #4a5a6e;
  --linea: #dfe5ec;
  --fondo: #f4f6f9;
  --blanco: #fff;
  --azul: #1d4ed8;
  --ok: #15803d;
  --aviso: #b45309;
  --mal: #b91c1c;
  --radio: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--fondo);
  color: var(--tinta);
  font-size: 15px;
  line-height: 1.45;
}

a { color: var(--azul); text-decoration: none; }
a:hover { text-decoration: underline; }

.cab {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  padding: 10px 16px; background: var(--tinta); color: #fff;
}
.cab a { color: #dbe4f0; }
.cab .marca { font-size: 16px; color: #fff; letter-spacing: .3px; }
.cab .marca strong { color: #7dd3fc; }
.cab nav { display: flex; gap: 12px; flex-wrap: wrap; font-size: 14px; }
.cab nav a:hover { color: #fff; text-decoration: none; }
.cab form { margin-left: auto; display: flex; gap: 8px; align-items: center; }
.quien { font-size: 13px; color: #cbd5e1; }

main { max-width: 1180px; margin: 0 auto; padding: 18px 16px 60px; }

h1 { font-size: 22px; margin: 4px 0 14px; }
h2 { font-size: 17px; margin: 22px 0 10px; }
h3 { font-size: 15px; margin: 16px 0 8px; }

.flash { padding: 9px 12px; border-radius: 8px; margin: 0 0 14px; font-size: 14px; }
.flash.ok { background: #e7f6ec; color: #14532d; border: 1px solid #b7e1c3; }
.flash.error { background: #fdeaea; color: #7f1d1d; border: 1px solid #f3bcbc; }

.tarjeta {
  background: var(--blanco); border: 1px solid var(--linea); border-radius: var(--radio);
  padding: 14px 16px; margin-bottom: 14px;
}
.rejilla { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); }

.kpi { background: var(--blanco); border: 1px solid var(--linea); border-radius: var(--radio); padding: 12px 14px; }
.kpi .valor { font-size: 22px; font-weight: 650; }
.kpi .etiqueta { font-size: 12px; color: var(--tinta-suave); text-transform: uppercase; letter-spacing: .4px; }
.kpi.mal .valor { color: var(--mal); }
.kpi.aviso .valor { color: var(--aviso); }
.kpi.ok .valor { color: var(--ok); }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 7px 8px; border-bottom: 1px solid var(--linea); vertical-align: middle; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: .4px; color: var(--tinta-suave); font-weight: 600; }
tbody tr:hover { background: #f8fafc; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }

.chip { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.chip.ok { background: #e7f6ec; color: #14532d; }
.chip.aviso { background: #fdf3e3; color: #92400e; }
.chip.mal { background: #fdeaea; color: #7f1d1d; }
.chip.gris { background: #eef1f5; color: #334155; }
.chip.azul { background: #e8effd; color: #1e3a8a; }

.btn, button {
  font: inherit; cursor: pointer; border-radius: 8px; border: 1px solid var(--azul);
  background: var(--azul); color: #fff; padding: 8px 12px;
}
.btn:hover, button:hover { filter: brightness(1.06); text-decoration: none; }
.btn.sec, button.sec { background: #fff; color: var(--azul); }
.btn.peligro, button.peligro { background: var(--mal); border-color: var(--mal); }
.btn.gris, button.gris { background: #eef1f5; border-color: var(--linea); color: var(--tinta); }
.btn-mini, button.btn-mini { padding: 4px 8px; font-size: 12.5px; border-radius: 6px; }

form.linea { display: flex; gap: 8px; flex-wrap: wrap; align-items: flex-end; margin: 0; }
label { display: flex; flex-direction: column; gap: 3px; font-size: 12.5px; color: var(--tinta-suave); }
input, select, textarea {
  font: inherit; padding: 7px 9px; border: 1px solid #c9d2dd; border-radius: 8px; background: #fff;
  color: var(--tinta); min-width: 0;
}
input[type="checkbox"] { width: 18px; height: 18px; }
textarea { resize: vertical; }

.obras-lista { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.obra-mini h3 { margin: 0 0 4px; }
.obra-mini .cifras { display: flex; gap: 12px; flex-wrap: wrap; font-size: 13px; color: var(--tinta-suave); margin: 6px 0; }
.barra { height: 9px; border-radius: 999px; background: #e8ecf2; overflow: hidden; display: flex; gap: 2px; }
.barra span { display: block; height: 100%; }
.barra .cons { background: var(--azul); }
.barra .avance { background: #94a3b8; }

.mi-dia .tarea { border-left: 5px solid var(--azul); }
.mi-dia .tarea.alta { border-left-color: var(--mal); }
.mi-dia .tarea.hecho { opacity: .65; }
.grande { font-size: 19px; font-weight: 650; }
.dim { color: var(--tinta-suave); font-size: 13px; }
.sep { display: flex; justify-content: space-between; gap: 10px; align-items: baseline; }

.login { max-width: 430px; margin: 6vh auto; }
.login .tarjeta { padding: 20px; }
.login h1 { margin-top: 0; }
.login .pestanas { display: flex; gap: 8px; margin-bottom: 12px; }
.login .pestanas button { flex: 1; }
.login form { display: grid; gap: 10px; }

.firma-area { touch-action: none; border: 2px dashed #9aa7b6; border-radius: 10px; background: #fff; width: 100%; height: 220px; }
.vertical { display: grid; gap: 12px; }
.fila-datos { display: grid; gap: 8px; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); }

.publico { max-width: 720px; margin: 0 auto; }
.publico .tarjeta { padding: 20px; }
.sello { font-size: 12px; color: var(--tinta-suave); word-break: break-all; }

.nav-fechas a { display: inline-block; padding: 10px 8px; }

@media (max-width: 640px) {
  main { padding: 12px 10px 50px; }
  th, td { padding: 6px 5px; }
  .cab nav { gap: 9px; font-size: 13px; }
  table.tabla-scroll { display: block; overflow-x: auto; }
}