body {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center; /* Centering content vertically */
    height: 100vh; /* Full viewport height for proper centering */
    background: linear-gradient(135deg, #FFD700, #1E90FF, #FFFFFF); /* Gradient with yellow, blue, and white */
    margin: 0; /* Remove default margin */
}

#myH1 {
    font-size: 4rem;
    font-family: "Arial", sans-serif;
    color: hsl(0, 0%, 25%);
}

#container {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 30px;
    border: 5px solid;
    border-radius: 50px;
    background-color: white; /* White background for the container */
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2); /* Optional shadow for depth */
}

#display {
    font-size: 5rem;
    font-family: monospace;
    font-weight: bold;
    color: hsl(0, 0%, 30%);
    text-shadow: 2px 2px 2px hsla(0, 0%, 0%, 0.75);
    margin-bottom: 25px;
}

#controls {
    display: flex; /* Ensure controls are aligned properly */
    justify-content: center; /* Center controls horizontally */
}

#controls button {
    font-size: 1.5rem;
    font-weight: bold;
    padding: 10px 20px;
    margin: 5px;
    min-width: 125px;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    color: white;
    transition: background-color 0.5s ease;
}

#startBtn {
    background-color: hsl(115, 100%, 40%);
}

#startBtn:hover {
    background-color: hsl(115, 100%, 30%);
}

#stopBtn {
    background-color: hsl(10, 90%, 50%);
}

#stopBtn:hover {
    background-color: hsl(10, 90%, 40%);
}

#resetBtn {
    background-color: hsl(205, 90%, 60%);
}

#resetBtn:hover {
    background-color: hsl(205, 90%, 50%);
}