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

:root {
    --black: #111;
    --white: #f1f1f1;
    --main: #4782FF;
    --main-alt: #476BFF;
}

* {
    padding: 0;
    margin: 0;
    font-family: "main";
    box-sizing: border-box;
    scroll-behavior: smooth;
}

body {
    background: url("../images/background.png");
    color: var(--black);
}

h1 {
    font-size: 3.5rem;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 2rem;
}

p, li {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
    font-weight: normal;
}

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

a {
    color: var(--main);
    text-underline-offset: 0.2rem;
    cursor: pointer;
}

a:hover {
    color: var(--main-alt);
}

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

button {
    background: var(--main);
    border: none;
    color: var(--white);
    padding: 0.5rem 1.5rem;
    border-radius: 0.5rem;
    font-size: 1.25rem;
    cursor: pointer;
}

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

button:hover {
    background: var(--main-alt);
}

hr {
    border: none;
    border-top: 0.1rem solid var(--black);
}

.main-div {
    background: var(--white);
    width: 50%;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    margin: auto;
}

.header {
    padding: 3rem 0;
}

.navbar {
    background: var(--black);
    color: var(--white);
}

.navbar button, .navbar button:hover {
    background: transparent;
    color: inherit;
    padding: 1rem 2rem;
}

.navbar button:hover, .navbar button.selected, .navbar button.selected:hover {
    background: radial-gradient(ellipse at 50% 0%, #FFFFFF35 0%, #FFFFFF00 70%);
}

.navbar.n button {
    width: 20%;
}

.navbar.r button {
    width: 100%;
}

.menu {
    display: none;
}

.menu.open {
    display: block;
}

.body {
    padding: 3rem 2rem;
    flex: 1;
}

.body::after {
    content: "";
    display: table;
    clear: both;
}

.col33 {
    width: 33.333%;
    float: left;
    padding: 0 0.5rem;
}

.col50 {
    width: 50%;
    float: left;
    padding: 0 0.5rem;
}

.col100 {
    width: 100%;
}

.col33:first-of-type, .col50:first-of-type {
    padding-left: 0;
}

.col33:last-of-type, .col50:last-of-type {
    padding-right: 0;
}

.card {
    background: var(--black);
    color: var(--white);
    padding: 1rem;
    border-radius: 0.5rem;
}

.footer {
    background: var(--black);
    color: var(--white);
    padding: 2rem;
}

.footer a, .footer a:hover {
    color: inherit;
}

.center {
    text-align: center;
}

.right {
    text-align: right;
}

.r {
    display: none;
}

@media screen and (max-width: 37.5rem) {
    h1 {
        font-size: 2.5rem;
    }
    h2 {
        font-size: 2rem;
    }
    h3 {
        font-size: 1.75rem;
    }
    h4 {
        font-size: 1rem;
    }
    .n {
        display: none;
    }
    .r {
        display: block;
    }
    .main-div {
        width: 100%;
    }
    .col33, .col50 {
        width: 100%;
        padding: 0.5rem 0;
    }
    .col33:first-of-type, .col50:first-of-type {
        padding-top: 0;
    }
    .col33:last-of-type, .col50:last-of-type {
        padding-bottom: 0;
    }
    .footer {
        text-align: center;
    }
}