body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #f4f4f4;
    font-family: Arial, sans-serif;
    margin: 0;
}

.container {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

.stopwatch {
    text-align: center;
    padding: 30px;
    border: 2px solid #333;
    border-radius: 10px;
    background-color: white;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

#display {
    font-size: 48px;
    margin-bottom: 20px;
    color: #333;
}

.buttons {
    display: flex;
    justify-content: center;
    gap: 10px; /* space between buttons */
}

.buttons button {
    padding: 10px 20px;
    font-size: 16px;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s;
}

#start {
    background-color: #28a745; /* green */
}

#start:hover {
    background-color: #218838; /* darker green */
}

#stop {
    background-color: #dc3545; /* red */
}

#stop:hover {
    background-color: #c82333; /* darker red */
}

#reset {
    background-color: #007bff; /* blue */
}

#reset:hover {
    background-color: #0069d9; /* darker blue */
}