body {
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #f0f0f0;
    margin: 0;
}

.dialpad {
    background-color: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    text-align: center;
}

#phoneNumber {
    width: 100%;
    padding: 10px;
    margin-bottom: 20px;
    font-size: 18px;
    text-align: center;
    border: 1px solid #ccc;
    border-radius: 5px;
}

.buttons {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

button {
    padding: 20px;
    font-size: 18px;
    border: none;
    border-radius: 5px;
    background-color: #007bff;
    color: #fff;
    cursor: pointer;
}

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

.action-buttons {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

#clearButton {
    background-color: #dc3545; /* Red color for clear button */
}

#clearButton:hover {
    background-color: #c82333; /* Darker red on hover */
}

#callButton {
    flex: 1;
    background-color: #28a745; /* Green color for call button */
}

#callButton:hover {
    background-color: #218838; /* Darker green on hover */
}