:root {
    /* green */
    --main-color: #267989;
    --green-color-primary: #e4ecea;
    --green-color-secondary: #e7f7f2;
    --green-color-tertiary: #BDD6D9;

    /* blue */
    --blue-color-primary: #036;

    /* black */
    --base-color: #333;

    /* white */
    --white-color-primary: #fff;

    /* gray */
    --gray-color-primary: #f1f1f1;
    --gray-color-secondary: #c9c9c9;
    --gray-color-tertiary: #8b8b8b;
    --gray-color-quaternary: #525151;

    /* red */
    --invalid-color: #bb0303;
}