html, body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    width:100%;
    height:100%;
    overflow:auto;
}
body {
    display:flex;
    flex-direction: column;
}

header {
    background-color: #333;
    color: #fff;
    padding: 10px;
}

.navigation {
    list-style: none;
    padding: 0;
    margin: 0;
}

.navigation li {
    display: inline;
    margin-right: 10px;
}

.navigation li a {
    color: #fff;
    text-decoration: none;
}

main {
    padding: 20px;
    flex-grow:1;
}

footer {
    background-color: #333;
    color: #fff;
    padding: 10px;
}

.footerContent {
    text-align: center;
}

.copyrightBox {
    font-size: 12px;
}

#GameWindow {
    width: 1280px;
    height: 720px;
    margin: 0 auto;
    border: 1px solid #000;
    background: #191919;
}

.row {
    display: flex;
    flex-grow: 1;
}

#FieldBoard {
    width: 750px;
    height: 535px;
    margin: 15px auto 0 auto;
    position: relative;
    border: 5px solid #444;
    background-color: #777;
}

.field {
    width: 80px;
    height: 80px;
}

.slot {
    margin: 5px;
    width: calc(100% - 10px);
    height: calc(100% - 10px);
    box-sizing: border-box;
    border: 0px solid #888;
    background-size: 40px;
    background-repeat: no-repeat;
    background-position: center;
    color:#0F0;
}
.slot.in-use {
    border-color: #FFF;
}
.slot:not(.in-use) {
    background-image:none !important;
}

.slot.in-use.white {
    border-width: 2px;
    border-color: #000;
    background-color: #CCC;
}

.slot.in-use.black {
    border: 2px solid #FFF;
    background-color: #222;
}

.fields {
    margin: 30px 15px 15px 30px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.game-seed {
    position: absolute;
    transform: rotateZ(-90deg);
    transform-origin: top left;
    bottom: -10px;
    left: 10px;
    color: #333;
}

.playable-fields {
    display: flex;
    gap: 5px;
    flex-grow: 1;
}

.row-points {
    display: flex;
    align-items: center;
    justify-content: center;
}

.row-points p {
    border: 2px solid #000;
    padding: 13px;
    font-size: 28px;
    margin: 0;
    border-radius: 50%;
    background-color: #FFF;
}