body {
  background: linear-gradient(135deg, #ffe6f2, #e6f7ff);
  font-family: 'Verdana', sans-serif;
  text-align: center;
  color: #555;
}

.hidden {
  display: none;
}

input {
  padding: 10px;
  margin: 8px;
  border-radius: 15px;
  border: 1px solid #ddd;
}

button {
  background: #ff9ecf;
  border: none;
  padding: 10px 18px;
  border-radius: 20px;
  font-size: 16px;
  color: white;
  cursor: pointer;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

button:hover {
  background: #ff7ebf;
}

.controls {
  margin: 20px;
  display: flex;
  justify-content: center;
  gap: 15px;
  align-items: center;
  font-size: 20px;
}

#calendar {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 12px;
  max-width: 900px;
  margin: auto;
}

.day {
  background: white;
  border-radius: 18px;
  padding: 8px;
  min-height: 160px;
  box-shadow: 0 6px 10px rgba(0,0,0,0.1);
}

.day h3 {
  margin: 5px 0;
  color: #ff7ebf;
}

textarea {
  width: 100%;
  border-radius: 10px;
  border: 1px solid #ddd;
  resize: none;
}

.day img {
  width: 100%;
  border-radius: 12px;
  margin-top: 5px;
}