body {
    font-family: Arial, sans-serif;
    background-color: #f0f0f0;
    margin: 0;
    padding: 0;
}

.calculator {
    max-width: 600px;
    margin: 50px auto;
    background-color: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

input[type="text"] {
      max-width: 460px !important;
  min-width: 340px!important;
  width: 100% !important;
    padding: 15px;
    font-size: 18px;
    margin-bottom: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
    text-align: right;
}

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

button {
    padding: 10px;
    font-size: 16px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    background-color: #007bff;
    color: white;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #0056b3;
}

.function-button {
    background-color: #d9534f;
}

.operator-button {
    background-color: #f0ad4e;
}

.reset-button {background-color: #193995;}

.scientific-button {
    display: none; /* Hidden by default */
    background-color: #5bc0de;
}

.scientific-buttons {
    margin-top: 20px;
}

.scientific-buttons button {
    padding: 10px 20px;
    font-size: 16px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    background-color: #5bc0de;
    color: white;
}

.scientific-buttons button:hover {
    background-color: #31b0d5;
}