@font-face {
    font-family: "main";
    src: url("../Rufina/Rufina-Regular.ttf");
}

:root {
    --main_white: #F2F2F2;
    --main_black: #222;
    --main_main: #1F75DF;
    --main_special: #DF831F;
}

::selection {
    background: var(--main_main);
    color: var(--main_white);
}

li::marker {
    color: var(--main_main);
}

* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    font-family: "main";
    letter-spacing: 0.1em;
}

body {
    background: var(--main_white);
    color: var(--main_black);
    min-height: 100vh;    
    display: flex;
    flex-direction: column;
}

a {
    color: var(--main_main);
    text-decoration: none;
    cursor: pointer;
}

a:hover {
    text-decoration: underline;
}

a, u {
    text-underline-offset: 0.2rem;
}

button {
    padding: 0.5rem 0.75rem;
    margin: 0.25rem 0;
    cursor: pointer;
}

button a, button a:hover, .footer_bar a, .footer_bar a:hover {
    color: inherit;
    text-decoration: none;
}

img {
    width: 50%;
    height: auto;
    vertical-align: middle;
    user-select: none;
}

ul, ol {
    padding-left: 3rem;
}

.navigation_bar {
    padding: 3rem 0 1rem 0;
    text-align: center;
}

.navigation_bar a {
    margin: 0 1rem;
    font-weight: bold;
}

.navigation_bar a.active, .navigation_bar a.active:hover {
    text-decoration: underline;
}

.body_bar {
    width: 75%;
    margin: auto;
    padding: 3rem 0;
    flex: 1;
}

.footer_bar {
    background: var(--main_black);
    color: var(--main_white);
    padding: 2rem 1.5rem;
}

.footer_bar a:hover {
    text-decoration: underline;
}

.special {
    color: var(--main_special);
}

.center {
    text-align: center;
}

.right {
    text-align: right;
}

.fancy_hr {
    border: 0;
    height: 0.0625rem;
    background: linear-gradient(to right, transparent, var(--main_special), transparent);
    position: relative;
    margin: 1rem 0;
}

.fancy_hr::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0.5rem;
    height: 0.5rem;
    background: var(--main_special);
    transform: translate(-50%, -50%) rotate(45deg);
    box-shadow: 0 0 0 1rem var(--main_white);
}

.card {
    background: #DCDCDC;
    border: 0.2rem solid #A1A1A1;
    padding: 1rem;
    border-radius: 0.5rem;
}

.card.warning {
    background: #FFCDCD;
    border: 0.2rem solid #FF8282;
}

.card.warning h3 {
    color: #FF0000;
}

.r {
    display: none;
}

@media screen and (max-width: 37.5rem) {
    .n {
        display: none;
    }
    .r {
        display: block;
    }
    .body_bar {
        width: 90%;
    }
    .footer_bar {
        text-align: center;
    }
}