body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  background: #ffe4e6; 
}

.calculator {
  width: 300px;
  background: #fff0f6; 
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  overflow: hidden;
}

.display {
  background: #d6336c; 
  color: white;
  font-size: 2rem;
  text-align: right;
  padding: 20px;
  box-sizing: border-box;
  border-bottom: 2px solid #f06595;
}

.buttons {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  padding: 20px;
  box-sizing: border-box;
}

button {
  padding: 20px;
  font-size: 1.2rem;
  border: none;
  border-radius: 5px;
  background: #fcc2d7; 
  color: #6a1b4d; 
  cursor: pointer;
  transition: background 0.3s, transform 0.2s;
}

button:hover {
  background: #faa2c1; 
  transform: scale(1.05);
}

button[data-action="clear"] {
  background: #f06595;
  color: white;
}

button[data-action="equals"] {
  background: #d6336c;
  color: white;
}