body {
  font-family: sans-serif;
  background-color: #ffe6f0;
  text-align: center;
  padding: 20px;
}

h1, h2 {
  color: #b30059;
}

.calendar {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 5px;
  max-width: 700px;
  margin: 20px auto;
}

.day, .date {
  padding: 15px;
  border: 1px solid #f0c3d6;
  background-color: #fff0f5;
  border-radius: 5px;
}

.date:hover {
  background-color: #ffd6e8;
  cursor: pointer;
}

.empty {
  visibility: hidden;
}

.todo-container {
  background-color: #fff;
  border-radius: 10px;
  padding: 20px;
  margin: 30px auto;
  max-width: 400px;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

button {
  background-color: #ff80b3;
  color: white;
  border: none;
  padding: 10px;
  margin-top: 10px;
  border-radius: 5px;
  cursor: pointer;
}