body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333;
}

section {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px;
}

#countLabel {
    display: block;
    font-size: 24px;
    color: #333;
    text-align: center;
    margin-top: 20px;
}
#btnContainer {
    text-align: center;
    margin-top: 20px;
}
button {
    font-size: 18px;
    padding: 10px 20px;
    margin: 0 10px;
    cursor: pointer;
    border: none;
    border-radius: 5px;
    background-color: #007BFF;
    color: white;
    transition: background-color 0.3s;
}
#clock {
    font-size: 48px;
    text-align: left;
    margin-top: 20px;
    margin: 20px;
}
.calculator {
    max-width: 400px;
    margin: 2px auto;
    padding: 20px;
    border: 1px solid #ccc;
    border-radius: 15px;
    background-color: white;
   
}
.calculator input {
    width: calc(100% - 22px);
    padding: 10px;
    margin-bottom: 10px;
    font-size: 18px;
    border: 1px solid #ccc;
    border-radius: 5px;
    box-sizing: border-box;
    text-align: right;
    margin-left: 10px;

}
.calculator btn {
    width: 48%;
    padding: 10px;
    font-size: 18px;
    margin: 1%;
    border: none;
    border-radius: 5px;
    background-color: #28a745;
    color: white;
    cursor: pointer;
    transition: background-color 0.3s;
}

.calculator .result {
    margin-top: 10px;
    font-size: 20px;
    text-align: center;
    color: #333;
}
 button:hover {
    background-color: #0056b3;
}
button:active {
    background-color: #004085;
}
button:focus {
    outline: none;
}
button:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}
.buttons {
    margin-top: 20px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    padding: 0 20px;
}
.operator{
    background-color: #ffc107;
    color: #333;
}
.operator:hover{
    background-color: #e0a800;
}
.equal{
    background-color: #2f23d3;
    padding: 30px 30px;
}
.equal:hover{
    background-color: #1c0fb8;
}