/* style.css */

body {
  font-family: Arial, sans-serif;
  background-color: #f0f4f8;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  height: 100vh;
  margin: 0;
}

.container {
  background-color: #ffffff;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
  width: 300px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

#display {
  width: 100%;
  height: 60px;
  font-size: 2rem;
  border: 1px solid #ccc;
  border-radius: 6px;
  padding: 10px;
  background-color: #f9f9f9;
  box-sizing: border-box;
}

.button-row {
  display: flex;
  justify-content: space-between;
  gap: 10px;
}

button {
  flex: 1;
  padding: 15px;
  font-size: 1.2rem;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.num-btn {
  background-color: #e0f7fa;
}

.op-btn {
  background-color: #ffe082;
}

.func-btn {
  background-color: #dcedc8;
}

.num-btn:hover {
  background-color: #b2dfdb;
}

.op-btn:hover {
  background-color: #ffca28;
}

.func-btn:hover {
  background-color: #c5e1a5;
}