/*
 * /everything page
 * inline chapters & lessons
 */

body:has(#everything) {
  /* max-height: 100%; */
  overflow: hidden;
  min-height: 100vh;
  /* mobile viewport bug fix */
  min-height: -webkit-fill-available;
}

html:has(#everything) {
  min-height: -webkit-fill-available;
}

/* set navbar to position: fixed */
body:has(#everything) .navbar {
  z-index: 100;
  position: fixed;
  inset: 0;
  bottom: 0;
}

/* everything wrapper, 2x2 responsive grid layout */
main#everything {
  display: grid;
  max-height: 100%;
  min-height: -webkit-fill-available;
  /* height: -webkit-fill-available; */
  grid-template-columns: minmax(0, max-content) 1fr;
  overflow: hidden;
  padding-top: var(--navbar-height);
}

#everything p,
#everything a {
  margin: var(--gap) 0;
  font-size: var(--font-size-normal);
  line-height: var(--gap-double);
  font-weight: 400;
}

#everything code {
  font-size: var(--font-size-small);
}

#everything h1,
#everything h2,
#everything h3 {
  margin: 0;
}

#everything-contents,
#everything-lessons {
  grid-column-end: span 1;
  grid-row: 1 / span 1;
  max-height: 100%;
  padding: var(--gap);
  padding-bottom: var(--gap-double);
  overflow-y: auto;
  display: flex;
  background: var(--color-background);
  flex-direction: column;
  transition: background 150ms linear 0s;
  position: relative;
}

/* table of contents on the left, scrollable */
#everything-contents {
  grid-column-start: 1;
  padding-bottom: var(--gap-quad);
  gap: var(--gap-double);
}

#everything-contents::before {
  position: fixed;
}

#everything-contents * {
  margin: 0;
}

#everything-contents .chapter {
  display: flex;
  flex-direction: column;
  gap: var(--gap);
}

#everything-contents .chapter h3 {
  white-space: nowrap;
}

#everything-contents .chapter ul,
#everything-contents .chapter li {
  list-style: none;
  padding: 0;
  color: var(--color-text-secondary);
  transition: color 150ms linear 0s;
}

#everything-contents .chapter ul {
  display: flex;
  flex-direction: column;
  gap: var(--gap-half);
}

#everything-lessons {
  grid-column-start: 2;
  container-type: inline-size;
  container-name: lessons-list;
  padding-top: 0;
  scroll-behavior: smooth;
  scroll-snap-type: y proximity;
  scroll-padding-block-start: calc(2 * var(--navbar-height));
  /* scroll-padding-block-start: var(--gap-double); */
}

#everything-lessons .chapter-title {
  margin: 0;
  padding-top: var(--gap);
  color: var(--color-text-accent);
  position: sticky;
  height: var(--gap-triple);
  top: 0;
  background: var(--color-background);
  transition: background 150ms linear 0s, color 150ms linear 0s;
  z-index: 3;
}

#everything-lessons .chapter-title:first-child {
  margin-top: 0;
}

#everything-lessons .lesson {
  margin: var(--gap) 0;
  padding: var(--gap) 0;
  padding-bottom: var(--gap-triple);
  scroll-snap-align: center top;
}

#everything-lessons .lesson * {
  margin: 0;
}

#everything-lessons .lesson-title {
  position: sticky;
  top: var(--gap-triple);
  background: var(--color-background);
  transition: background 150ms linear 0s, color 150ms ease-out 0s;
  color: var(--color-link);
  z-index: 2;
  padding: var(--gap) 0;
  margin-bottom: var(--gap-double);
}

#everything-lessons .lesson:target {
  animation: highlight-block 900ms ease-in-out 300ms 1;
}

#everything-lessons .lesson:target .lesson-title {
  animation: highlight-text 900ms ease-in-out 300ms 1;
}

#everything-lessons .lesson-snippet {
  padding: var(--gap);
  margin-right: var(--gap);
  margin-top: var(--gap-double);
  position: relative;
  background: var(--code-background);
  transition: background 150ms linear 0s, box-shadow 150ms linear 0s;
  box-shadow: var(--drop-shadow);
}

#everything-lessons .lesson-snippet code {
  overflow-x: auto;
  display: inline-block;
  width: 100%;
  padding: var(--gap);
  padding-bottom: var(--gap-double);
}

#everything-lessons .lesson-snippet-link {
  background: var(--color-accent-muted);
  position: absolute;
  bottom: 0;
  right: 0;
  padding: var(--gap-half) var(--gap);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--gap);
  font-size: var(--font-size-small);
  color: var(--color-link);
  border-radius: none;
  text-decoration: none;
  outline: 1px solid transparent;
  outline-offset: -1px;
  cursor: pointer;
  transition: all 300ms ease-out 0s;
}

#everything-lessons .lesson-snippet-link:hover {
  color: var(--color-link);
  background: var(--color-background);
  transition: all 150ms ease-in 0s;
  outline-color: var(--color-accent);
}

#everything-lessons .snippet-link-icon {
  color: var(--color-accent);
  transition: color 150ms ease-in 0s;
  font-weight: bold;
  text-decoration: none;
}

#everything-lessons .lesson-snippet-link:hover .snippet-link-icon {
  color: var(--color-accent-hot);
}

#everything-lessons hr {
  width: 100%;
  height: 1px;
  border: 0;
  padding: 0;
  margin: 0;
  display: block;
  transition: border-top 150ms linear 0s;
}

#everything-lessons .lesson-separator {
  border-top: 1px solid var(--color-accent-muted);
}

#everything-lessons .chapter-separator {
  border-top: 1px solid var(--color-accent);
  position: sticky;
  top: calc(var(--gap-triple) - 1px);
  z-index: 3;
}

@media only screen and (min-width: 1100px) {
  #everything {
    grid-template-columns: minmax(min-content, max-content) 1fr;
  }

  #everything-contents {
    padding: var(--gap) var(--gap-double) var(--gap-quad) var(--gap);
  }

  #everything-contents .chapter ul {
    padding-left: var(--gap);
  }
}

/* transform contents as to a side menu  */
@media only screen and (max-width: 768px) {
  #everything-contents {
    position: fixed;
    inset: 0;
    top: var(--navbar-height);
    grid-column: 1 / span 2;
    padding-left: calc(var(--gap) + var(--gap-quad) * 2);
    transform: translateX(-100%);
    transition: transform 300ms ease-in 0s, overflow-y 0s linear 600ms,
      background 150ms linear 0s;
    z-index: 10;
    overflow: unset;
    box-shadow: 0 0 0 rgba(0, 0, 0, 0.4);
    background: var(--color-background-dim);
    padding-bottom: calc(2 * var(--gap-quad));
  }

  /* show / hide contents when touching on trigger */
  #everything-contents:hover:not(:has(a:hover)) {
    transform: translateX(calc(-2 * var(--gap-quad)));
    box-shadow: 0 var(--gap-double) var(--gap-quad) rgba(0, 0, 0, 0.4);
    /* overflow-x: hidden; */
    animation: reveal 300ms ease-out 20ms forwards 1;
  }

  #everything-contents::before {
    display: none;
  }

  #everything-contents::after {
    content: "Table of contents";
    position: fixed;
    padding: var(--gap-double) var(--gap);
    inset: unset;
    bottom: 0;
    right: calc(-100%);
    font-size: var(--font-size-small);
    filter: none;
    width: calc(100vw);
    transform: translateX(0);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text);
    font-weight: bold;
    background: var(--color-background-dim);
    z-index: 60;
    opacity: 1;
    transition: opacity 300ms ease-out 450ms, background 150ms linear,
      color 150ms linear 0s;
    pointer-events: all;
    box-sizing: border-box;
  }

  .theme-light #everything-contents::after {
    filter: contrast(1);
  }

  #everything-contents:hover:not(:has(a:hover))::after {
    opacity: 0;
    transition: opacity 150ms ease-in 0s;
  }

  #everything-lessons {
    grid-column: 1 / span 2;
    padding-bottom: var(--gap-quad);
    padding-left: 0;
    padding-right: 0;
  }

  #everything-lessons .lesson,
  #everything-lessons .chapter-title,
  #everything-lessons .chapter-separator {
    padding-left: var(--gap);
    padding-right: var(--gap);
  }

  #everything-lessons .lesson-snippet code {
    padding: var(--gap);
  }
}

@container lessons-list (min-width: 900px) {
  #everything-lessons .lesson,
  #everything-lessons .chapter-title {
    padding-right: var(--gap-quad);
    padding-left: var(--gap-quad);
  }

  #everything-lessons .chapter-separator {
    margin-left: var(--gap-quad);
    margin-right: var(--gap-quad);
    width: calc(100% - var(--gap-quad) * 2);
  }
}

@media all and (orientation: portrait) {
  /* adjust padding and sticky element positions when a link is clicked */

  /* #everything:has(*:target) #everything-lessons {
    padding-top: var(--navbar-height);
  }

  #everything:has(*:target) #everything-contents {
    padding-top: calc(var(--navbar-height) + var(--gap));
  } */
}

@keyframes highlight-text {
  0% {
    text-decoration: underline;
    text-decoration-color: transparent;
  }

  50% {
    text-decoration: underline;
    text-decoration-color: var(--color-accent);
    color: var(--color-accent-text);
    background: var(--color-accent-muted);
  }

  100% {
    text-decoration: underline;
    text-decoration-color: transparent;
  }
}

@keyframes highlight-block {
  0% {
  }

  50% {
    background: var(--color-accent-muted);
  }

  100% {
  }
}

@keyframes reveal {
  0% {
    overflow: unset;
  }

  99% {
    overflow: unset;
  }

  100% {
    overflow-y: auto;
  }
}