:root {
    --background-color: #e9e9e9;
    --water-color: #b3e7ff;

    --light-grey-color: #819ca9;
    --medium-grey-color: #546e7a;
    --dark-grey-color: #29434e;

    --light-yellow-color: #fff350;
    --medium-yellow-color: #ffc107;
    --dark-yellow-color: #755600;
}