#scientific-calculator {
    width: 400px;
    margin: 20px 18%; /* Remove auto centering and align to left */
    padding: 20px;
    border: 1px solid #ccc;
    border-radius: 10px;
    background-color: #f9f9f9;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    text-align: center; /* Center the text inside the calculator */
}

/* Display Area */
#display-scientific {
    width: 100%;
    height: 50px;
    margin-bottom: 20px;
    padding: 10px;
    font-size: 1.5em;
    text-align: right;
    border: 1px solid #ccc;
    border-radius: 5px;
    background-color: #fff;
}

/* Calculator Buttons */
#scientific-calculator .calculator-buttons {
    display: grid;
    grid-template-columns: repeat(5, 1fr); /* Adjusted for more buttons */
    gap: 10px;
}

#scientific-calculator .calculator-buttons button {
    width: 100%;
    padding: 20px;
    font-size: 1.2em;
    border: none;
    border-radius: 5px;
    background-color: #e0e0e0;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

#scientific-calculator .calculator-buttons button:hover {
    background-color: #d4d4d4;
}

#scientific-calculator .calculator-buttons button:active {
    background-color: #c0c0c0;
}

#scientific-calculator .calculator-buttons button.operator {
    background-color: #ff9800;
    color: #fff;
}

#scientific-calculator .calculator-buttons button.operator:hover {
    background-color: #e68900;
}

#scientific-calculator .calculator-buttons button.operator:active {
    background-color: #cc7a00;
}

#scientific-calculator .calculator-buttons button.equal {
    background-color: #4caf50;
    color: #fff;
    grid-column: span 1;
}

#scientific-calculator .calculator-buttons button.equal:hover {
    background-color: #45a049;
}

#scientific-calculator .calculator-buttons button.equal:active {
    background-color: #3e8e41;
}

#scientific-calculator .calculator-buttons button.zero {
    grid-column: span 1;
}

/* Reset Button */
.reset {
    width: 100%;
    padding: 10px;
    margin-top: 20px;
    font-size: 1.2em;
    border: none;
    border-radius: 5px;
    background-color: #d76961;
    color: #fff;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.reset:hover {
    background-color: #e53935;
}

.reset:active {
    background-color: #d32f2f;
}