@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500&display=swap');

* {
    margin: 0;
    padding: 0;
    font-family: 'Poppins', sans-serif;
}

body {
    background-image: linear-gradient(to top, #cfd9df 0%, #dfdfdf 100%);
    background-repeat: no-repeat;
    background-attachment: fixed;
}

.main {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    flex-direction: column;
}

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

.container > h1 {
    margin-bottom: 20px;
    font-size: 50px;
}

#board {
    background-color: lightgray;
    border-bottom: 1px solid black;
}

#startBtn {
    padding: 10px 20px;
    font-size: 18px;
    cursor: pointer;
    margin-top: 20px;
}

#result {
    margin-top: 20px;
    font-size: 24px;
}