/* FONT IMPORT */
@import url('https://fonts.cdnfonts.com/css/open-dyslexic');

/* -------------------------------------------------------- */
/* VARIABLES */
/* -------------------------------------------------------- */

:root {
  /* Background Colors: */
  --background-color: #3b2f2f; /* deep brown vintage */
  --content-background-color: #8b6f52; /* sepia paper */
  --sidebar-background-color: #d9cbbf; /* aged parchment */

  /* Text Colors: */
  --text-color: #fdf5e6; /* cream text */
  --sidebar-text-color: #2b1f1f;
  --link-color: #7b2f2f;
  --link-color-hover: #a97c50;

  /* Text: */
  --font: 'Open-Dyslexic', sans-serif;
  --heading-font: 'Brush Script MT', cursive;
  --font-size: 22px;

  /* Other Settings: */
  --margin: 10px;
  --padding: 20px;
  --border: 12px solid #b49a7a; /* old frame border style */
  --round-borders: 10px;
  --sidebar-width: 348px;
}

/* -------------------------------------------------------- */
/* BASICS */
/* -------------------------------------------------------- */

* {
  box-sizing: border-box;
}

body {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  min-height: 100vh;
  font-size: var(--font-size);
  margin: 0;
  padding: var(--margin);
  color: var(--text-color);
  font-family: var(--font);
  line-height: 1.4;
  background: var(--background-color);
  background-image: url("https://www.transparenttextures.com/patterns/old-mathematics.png"); /* vintage texture */
  background-size: auto;
}

::selection {
  background: rgba(123, 47, 47, 0.3);
}

mark {
  text-shadow: 1px 1px 2px var(--link-color);
  background-color: inherit;
  color: var(--text-color);
}

/* Links */
a {
  text-decoration: underline dotted;
}

a,
a:visited {
  color: var(--link-color);
}

a:hover,
a:focus {
  color: var(--link-color-hover);
  text-decoration: underline wavy;
}

/* -------------------------------------------------------- */
/* LAYOUT */
/* -------------------------------------------------------- */

.layout {
  width: 100%;
  display: grid;
  grid-gap: var(--margin);
  grid-template: "header header" auto "leftSidebar main" auto "footer footer" auto / var(--sidebar-width) auto;
}

main {
  grid-area: main;
  overflow-y: auto;
  padding: var(--padding);
  background: var(--content-background-color);
  border: var(--border);
  border-radiu