@font-face {

    font-family: 'MV Boli';
    src: url('/font/mvboli.ttf');
    font-display: swap;

}

*, *::before, *::after { box-sizing: border-box; }

html, body { height: 100dvh; margin: 0; }

img {

    max-width: 100%; object-fit: cover;

}

main {

    height: 100%;

    display: flex;
    flex-direction: column;
    align-items: center; justify-content: center;

    background-image: url('./image/4920290.jpg');
    background-size: cover;

}

#game-wrapper {

    position: relative;

}

#game-trigger-mask {

    position: absolute;
    top: 0; left: 0;
    width: 100%; height: calc(100% - 6px);
    display: flex;
    justify-content: center;
    align-items: center;
    
    background-color: #C4E7D2;

    display: flex;
    flex-direction: column;
    gap: 2.5rem;

}

#game-board {

    position: relative;
    border: 3px solid;

}

#game-score {
    
    font-family: 'MV Boli', sans-serif;
    font-size: 90px;

}

#start-btn, #reset-btn {

    width: 100px;
    font-family: 'Franklin Gothic Medium', 'Arial Narrow', Arial, sans-serif;
    font-size: 22px;
    padding: 10px;
    border: 4px solid;
    border-radius: 15px;

    cursor: pointer;
    z-index: 100;

}