:root {
    --game-begin-margin: 2em;
    --header-actions-height: 3em;
}

.game_begin {
    align-items: center;
    border-radius: 1.5em;
    background-image: url("../images/start_background.png");
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    display: flex;
    flex-direction: column;
    flex-wrap: wrap;
    justify-content: center;
    margin: var(--game-begin-margin);
    /*
    Viewport height - body margin (x2: top + bottom) - header actions height
    - footer links height - game begin margin
    */
    height: calc(100vh - var(--body-margin) * 2
        - var(--game-begin-margin) * 2
        - var(--header-actions-height)
        - var(--footer-links-height));
}

.game_title {
    color: #BD1E1E;
    font-family: "Spicy Rice", serif;
    font-weight: bold;
    font-size: 5em;
    margin-block-start: 0;
    margin-block-end: 0;
    margin-top: 0.5em;
    margin-bottom: 0.5em;
    text-align: center;
}

.top_button {
    background-color: transparent;
    border: none;
    fill: white;
    cursor: pointer;
    padding: 0;
}

.header_actions {
    display: flex;
    justify-content: flex-end;
    height: var(--header-actions-height);
}

.action_button {
    border-color: black;
    border-style: solid;
    border-width: 0.125em;
    background-color: #BD1E1E;
    border-radius: var(--button-and-dialog-border-radius);
    cursor: pointer;
    font-family: "Titan One", sans-serif;
    font-size: 3em;
    margin-left: auto;
    margin-right: auto;
    padding-top: 0.5em;
    padding-bottom: 0.5em;
    padding-left: 1em;
    padding-right: 1em;
    text-transform: uppercase;
    overflow: hidden;
    transition: box-shadow 0.5s, transform 0.5s;
}

.action_button:hover {
    transform: translate(0.1em, 0.1em);
    box-shadow: 10px -10px 25px 0px black, -10px 10px 25px 0px black;
}