/* variables */

:root {
    /* background colors */
    --background-color: #000000;
    --content-background-color: #111014;
    --sidebar-background-color: #111014;

    /* text colors */
    --text-color: #edeacc;
    --sidebar-text-color: #adca73;
    --link-color: #e0700e;
    --link-color-hover: #529431;

    /* text */
    --font: Monaco, monospace;
    --heading-font: Helvetica, sans-serif;
    --font-size: 12px;

    /*other*/
    --margin: 20px;
    --padding: 24px;
    --border: 4px solid #ff5858;
    --round-borders: 22px;
    --sidebar-width: 250px;
}


/* applying to whole page */
* {
    box-sizing: border-box;
}

body {
    display: flex;
    align-items: flex-start;
    justify-content: flex-start;
    min-height: 100vh;
    font-size: var(--font-size);
    margin: 0;
    padding: var(--margin);
    color: var(--text-color);
    font-family: var(--font);
    line-height: 1.2;
    background: var(--background-color);
    background-image: url(fine_grained_wood_col_4k.jpg);
}


::selection {
    background: rgba(0, 0, 0, 0.2);
}

mark {
    text-shadow: 1px 1px 4px var(--link-color);
    background-color: inherit;
    color: var(--text-color);
}

/*links*/
a {
    text-decoration: underline;
}

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

a:hover,
a:focus {
    color: var(--link-color-hover);
    text-decoration: none;
}

.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-radius: var(--round-borders);
}

/*__________________________*/
/* HEADER */
/*__________________________*/

header {
    grid-area: header;
    font-size: 1.2em;
    border: var(--border);
    border-radius: var(--round-borders);
    background: var(--content-background-color);
}

.header-content {
    padding: var(--padding);
}

.header-title {
    font-family: var(--heading-font);
    font-size: 1.5em;
    font-weight: bold;
}

.header-image img {
    width: 100%;
    height: auto;
}

/*__________________________*/
/* SIDEBAR */
/*__________________________*/

aside {
    grid-area: aside;
    border: var(--border);
    border-radius: var(--round-borders);
    overflow: hidden;
    background: var(--sidebar-background-color);
    padding: var(--padding);
    color: var(--sidebar-text-color);
}

.left-sidebar {
    grid-area: leftSidebar;
}

.right-sidebar {
    grid-area: rightSidebar;
}

.sidebar-title {
    font-weight: bold;
    font-size: 1.2em;
    font-family: var(--heading-font);
}

.sidebar-section:not(:last-child) {
    margin-bottom: 3em;
}

.sidebar-section ul,
.sidebar-section ol {
    padding-left: 1.5em;
}

.sidebar-section > *:not(p):not(ul):not(ol):not(blockquote) {
    margin-top: 10px;
}

/*__________________________*/
/* sidebar blockquote */
/*__________________________*/

.sidebar-section blockquote {
    background: rgba(0, 0, 0, 0.1);
    padding: 15px;
    margin: 1em 0;
    border-radius: 10px;
    overflow: hidden;   
}

.sidebar-section blockquote > *:first-child {
    margin-top: 0;
}

.sidebar-section blockquote > *:last-child {
    margin-bottom: 0;
}

/*__________________________*/
/* site button */
/*__________________________*/

.site-button {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.site-button textarea {
    font-family: monospace;
    font-size: 0.7em;
}

/*__________________________*/
/* FOOTER */
/*__________________________*/

footer {
    grid-area: footer;
    border: var(--border);
    border-radius: var(--round-borders);
    overflow: hidden;
    font-size: 0.75em;
    padding: 15px;
    background: var(--content-background-color);
    display: flex;
    justify-content: center;
}

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

footer a:hover,
footer a:focus {
    color: var(--link-color-hover);
}

/*__________________________*/
/* NAVIGATION */
/*__________________________*/

nav {
    margin-bottom: 3em;
}

nav .sidebar-title {
    margin-bottom: 0.5em;
}

nav ul {
    margin: 0 -5px;
    padding: 0;
    list-style: none;
    user-select: none;
}

nav ul li {
    margin-bottom: 0;
}

nav > ul li > a,
nav > ul li > details summary,
nav > ul li > strong {
    padding: 5px 10px;
}

nav > ul li > a.active,
nav > ul li > details.active summary {
    font-weight: bold;
}

nav ul ul li > a {
    padding-left: 30px;
}

/*__________________________*/
/* CONTENT */
/*__________________________*/

main {
    line-height: 1.5;
}

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

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

main p,
main .image,
main .full-width-image,
main .two-columns {
    margin: 0.75em 0;
}

main ol,
main ul {
    margin: 0.5em 0;
    padding-left: 1.5em;
}

main ol li,
main ul li {
    margin-bottom: 0.2em;
    line-height: 1.4;
}

main ol {
    padding-left: 2em;
}

main blockquote {
    background: rgba(0, 0, 0, 0.1);
    padding: 15px;
    margin: 1em 0;
    border-radius: 10px;
}

main pre {
    margin: 1em 0 1.5em;
}

main code {
    text-transform: none;
}

main center {
    margin: 1em 0;
    padding: 0 1em;
}

main hr {
    border: 0;
    border-top: var(--border);
    margin: 1.5em 0;
}

/*__________________________*/
/* HEADINGS */
/*__________________________*/

main h1,
main h2,
main h3,
main h4,
main h5,
main h6 {
  font-family: var(--heading-font);
  margin-bottom: 0;
  line-height: 1.5;
}

main h1:first-child,
main h2:first-child,
main h3:first-child,
main h4:first-child,
main h5:first-child,
main h6:first-child {
  margin-top: 0;
}

main h1 {
  font-size: 1.5em;
}

main h2 {
  font-size: 1.4em;
}

main h3 {
  font-size: 1.3em;
}

main h4 {
  font-size: 1.2em;
}

main h5 {
  font-size: 1.1em;
}

main h6 {
  font-size: 1em;
}

/*__________________________*/
/* columns */
/*__________________________*/

.two-columns {
  display: flex;
}

.two-columns > * {
  flex: 1 1 0;
  margin: 0;
}

.two-columns > *:first-child {
  padding-right: 0.75em;
}

.two-columns > *:last-child {
  padding-left: 0.75em;
}

/*__________________________*/
/* content images */
/*__________________________*/

.image {
  display: block;
  width: auto;
  height: auto;
  max-width: 100%;
}

.full-width-image {
  display: block;
  width: 100%;
  height: auto;
}

.images {
  display: flex;
  width: calc(100% + 5px + 5px);
  margin-left: -5px;
  margin-right: -5px;
}

.images img {
  width: 100%;
  height: auto;
  padding: 5px;
  margin: 0;
  overflow: hidden;
}

/*__________________________*/
/* ACCESSIBILITY */
/*__________________________*/

/* dnr */

#skip-to-content-link {
  position: fixed;
  top: 0;
  left: 0;
  display: inline-block;
  padding: 0.375rem 0.75rem;
  line-height: 1;
  font-size: 1.25rem;
  background-color: var(--content-background-color);
  color: var(--text-color);
  transform: translateY(-3rem);
  transition: transform 0.1s ease-in;
  z-index: 99999999999;
}

#skip-to-content-link:focus,
#skip-to-content-link:focus-within {
  transform: translateY(0);
}

/*__________________________*/
/* MOBILE */
/*__________________________*/

@media (max-width: 800px) {
  body {
    font-size: 14px;
  }

  .layout {
    width: 100%;
    grid-template: "header" auto  "leftSidebar" auto "rightSidebar" auto "main" auto "footer" auto / 1fr;
  }

  aside {
    border-bottom: 1px solid;
    padding: 9px;
    font-size: 0.9em;
  }

  
  nav {
    padding: 0;
  }

  nav > ul {
    padding-top: 0.5em;
  }

  nav > ul li > a,
  nav > ul li > details summary,
  nav > ul li > strong {
    padding: 0.5em;
  }

  main {
    max-height: none;
    padding: 15px;
  }

  .images {
    flex-wrap: wrap;
  }

  .images img {
    width: 100%;
  }

  #skip-to-content-link {
    font-size: 1rem;
  }
}