* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    min-height: 100%;
}

body {
    min-height: 100vh;

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

    background: #000000;
    color: #eeeeee;
    font-family: Arial, sans-serif;
}

#game-layout {
    display: flex;
    align-items: flex-start;
    gap: 0px;

    width: max-content;
    height: 640px;
}

#game-container {
    width: 800px;
    height: 640px;
    flex: 0 0 800px;
}

#game-container canvas {
    display: block;
}

.ui-sidebar {
    height: 640px;
    flex: 0 0 auto;

    display: flex;
    flex-direction: column;
    gap: 0px;

    overflow: hidden;
}

.ui-panel h2,
.ui-panel h3 {
    margin: 0 0 8px;
}

.ui-panel {
    padding: 0px;
    /* border: 1px solid #FFFFFF; */
    /* background: #FFFFFF11; */
    border-radius: 10px;
}

.ui-subpanel p {
    margin: 4px;
    padding: 0;
}

.ui-subpanel {
    /* border: 1px solid #FFFFFF; */
    background: #FFFFFF11;
    font-size: 12px;
    border-radius: 5px;
}