/* ====== Layout general (3x4) ====== */
.co28grid_wrapper {
  --co28grid-bg: #ffffff;
  --co28grid-card: #ffffff;
  --co28grid-border: #e9edf3;
  --co28grid-text: #1f2a37;
  --co28grid-muted: #6b7280;
  --co28grid-holiday: #e53935;
  --co28grid-dot: #e53935;
  --co28grid-shadow: 0 6px 18px rgba(16, 24, 40, 0.05);

  max-width: 1200px;
  margin: 32px auto;
  padding: 8px;
  display: grid;
  grid-template-columns: repeat(3, minmax(280px, 1fr)); /* 3 columnas fijas */
  gap: 18px;
  background: var(--co28grid-bg);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Inter, Arial, sans-serif;
  color: var(--co28grid-text);
}

/* 2 columnas en tablet */
@media (max-width: 960px) {
  .co28grid_wrapper { grid-template-columns: repeat(2, minmax(260px, 1fr)); }
}
/* 1 columna en móvil */
@media (max-width: 560px) {
  .co28grid_wrapper { grid-template-columns: 1fr; }
}

/* ====== Tarjeta mensual ====== */
.co28grid_card {
  background: var(--co28grid-card);
  border: 1px solid var(--co28grid-border);
  border-radius: 12px;
  box-shadow: var(--co28grid-shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* Encabezado del mes: azul uniforme */
.co28grid_header {
  background: #0647A3;   /* azul pedido */
  padding: 10px 12px;
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  letter-spacing: .2px;
}

/* ====== Tabla de días ====== */
.co28grid_table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
  font-size: 13px;
}

.co28grid_weekdays th {
  color: var(--co28grid-muted);
  font-weight: 600;
  padding: 8px 0 6px;
  text-align: center;
  border-bottom: 1px solid var(--co28grid-border);
}

.co28grid_days td {
  height: 30px;
  text-align: center;
  padding: 4px 0;
  border-bottom: 1px dashed #f2f4f7;
  position: relative;
}

.co28grid_days td.co28grid_empty {
  background: #fafbfc;
}

/* Día festivo destacado */
.co28grid_day--holiday {
  color: var(--co28grid-holiday);
  font-weight: 700;
}

/* Punto rojo para festivo */
.co28grid_dot {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--co28grid-dot);
  position: absolute;
  right: 8px;
  top: 8px;
}

/* ====== Leyenda por mes ====== */
.co28grid_footer {
  padding: 8px 10px 10px;
  font-size: 12px;
  color: var(--co28grid-muted);
  border-top: 1px solid var(--co28grid-border);
}

.co28grid_note {
  display: block;
  margin: 2px 0;
  line-height: 1.35;
}

.co28grid_note strong { color: var(--co28grid-holiday); }