.calendar {
  width: 100%;
  max-width: 360px;
  margin: auto;
  font-family: sans-serif;
  background: white;
  border: 1px solid #ccc;
  padding: 10px;
  border-radius: 6px;
}

.calendar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #1a3c70; /* Dunkelblau */
  color: white;
  padding: 8px 12px;
  border-radius: 4px;
  margin-bottom: 10px;
  font-weight: bold;
}

.calendar-header a {
  text-decoration: none;
  color: #ffffff;
  font-size: 20px;
  font-weight: normal;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
}

.weekday {
  background-color: #1a3c70; /* Dunkelblau */
  color: white;
  text-align: center;
  padding: 8px;
  font-weight: bold;
  border-radius: 3px;
}

.day {
  background: #d6e9ff; /* Hellblau */
  padding: 10px;
  text-align: center;
  border-radius: 3px;
  color: #000;
}

.day.linked {
  background-color: #4a90e2; /* Kräftigeres Blau */
  color: white;
  font-weight: bold;
  text-decoration: none;
  display: block;
}

.day.linked:hover {
  background-color: #316ac5;
}

.day.empty {
  background: transparent;
}