body {
    background-color: skyblue;
    font-family: Arial, sans-serif;
    text-align: center;
    padding-top: 50px;
}

h1 {
    color: #fff;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.3);
}

#countdown {
    display: none; /* hidden until button is pressed */
    padding: 10px 20px;
    font-size: 30px;
    font-weight: bold;
    background-color: white;
    border-radius: 20px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    margin-top: 15px;

    /* Gradient text effect */
    background: linear-gradient(to right, #000000, #434343);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-family: 'Trebuchet MS', sans-serif;
    letter-spacing: 2px;
}

#startBtn {
    background-color: green;
    color: white;
    border: none;
    padding: 10px 15px;
    font-size: 20px;
    cursor: pointer;
    border-radius: 8px;
    transition: background 0.3s;
}

#startBtn:hover {
    background-color: darkgreen;
}