/* define global site variables */

:root {
  --pagewidth: 90ch;
  --shadow: oklch(0% 0 0 / 10%);

  --L: 60%;   /* 60% */
  --C: 0.15;  /* 0.15 */
  --H: 250;   /* 250 */
  --accent: oklch(var(--L) var(--C) var(--H));
  --accent-light: oklch(var(--L) var(--C) var(--H) / 20%);

  --bodytext: oklch(20% 0 0);
  --background-color: oklch(96% 0.015 85);
  --card-background-color: var(--background-color);
  --radius: 0.5rem;
  --heading-font: "slab", serif;
  --body-font: "Roboto Serif", serif;
  --cta-font: "Roboto Condensed", sans-serif;
  --mono-font: Menlo, Consolas, Monaco, Liberation Mono, Lucida Console, monospace;
    /* font-size: 19px; */
}

/* @media (prefers-color-scheme: dark) {
  :root {
    --accent: oklch(60% 0.15 250);
    --accent-light: #dae6f0;
    --bodytext: rgb(204, 204, 204);
    --background-color:  rgb(44, 44, 44);
    --card-background-color: rgb(44, 44, 44);

  }
} */

@view-transition {
  navigation: auto;
}

/* This CSS rule checks if the browser supports the '--accent-light' property with a specific value.
   The value is a color-mix function that mixes the '--accent' color with 80% transparency in the sRGB color space. */
/* @supports (--accent-light: color-mix(in oklch, var(--accent), transparent 80%)) {
  :root {
    --accent-light: color-mix(in oklch, var(--accent), transparent 80%);
  }
} */

@font-face {
  font-family: "Roboto Condensed";
  font-style: normal;
  font-weight: 400;
  font-display: block;
  src: url(/fonts/RobotoCondensed-Regular.woff2) format("woff2");
}

@font-face {
  font-family: "slab";
  font-style: normal;
  font-weight: 700;
  font-display: block;
  src: url(/fonts/slab.woff2) format("woff2");
}

@font-face {
  font-family: "Roboto Serif";
  font-style: normal;
  font-weight: 400;
  src: url(/fonts/RobotoSerif-Regular.woff2) format("woff2");
}

@font-face {
  font-family: "Roboto Serif";
  font-style: italic;
  font-weight: 400;
  src: url(/fonts/RobotoSerif-Italic.woff2) format("woff2");
}

@font-face {
  font-family: "Roboto Serif";
  font-style: normal;
  font-weight: 500;
  src: url(/fonts/RobotoSerif-Medium.woff2) format("woff2");
}

@font-face {
  font-family: "Roboto Serif";
  font-style: italic;
  font-weight: 500;
  src: url(/fonts/RobotoSerif-MediumItalic.woff2) format("woff2");
}

/* Switch to 'border box', and reset browser margin & padding to zero */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--body-font);
  font-weight: 400;
  color: var(--bodytext);
  scrollbar-gutter: stable;
  accent-color: var(--accent);
  scroll-behavior: smooth;
}

body {
  counter-reset: figures;
  background-color: var(--background-color);
}

/*  ======================
    MARK: SET MEDIA QUERIES
    ====================== */

/* set size for 320px - 768px ≈16px/100% */
@media  (width < 768px) {
  body {
    font-size: 95%;
    line-height: 1.5;
  }

  search {
    display:none;
  }

  article,
  main,
  aside,
  global-nav {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }

  blockquote {
    margin-left: 0px !important;
  }

  abbr[title]::after{
    content: " (" attr(title) ")";
  }

  ul,
  ol {
    margin-left: 1rem !important;
  }
  
  /* full width learning log table on mobile */
  .learning-log {
    width: 100%;
  }

  .byline {
    flex-direction: column;
  } 

}

/* set size for >768px 120% */
@media (width >= 768px) {
  html {
    font-size: 105%;
    line-height: 1.7;
  }

  article,
  main,
  aside {
    padding-left: 3.5rem;
    padding-right: 3.5rem;
  }

  global-nav {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }

  blockquote {
    margin-left: 2rem !important;
  }

  abbr::after{
    vertical-align: super;
    content: "\2060?"!important;
    font-size: 80%;
    color: var(--accent);
  }

  ul,
  ol {
    margin-left: 3rem !important;
  }

  /* 60% width learning log table desktops/tablets */
  .learning-log {
    width: 100%;
  }

  .byline {
    flex-direction: row;
  } 

}

/*  ======================
    MARK: PAGE DESIGN
    ====================== */

/* the article and aside containers are the same, with the exception of the top padding */

article,
main,
aside {
  background-color: var(--background-color);
  max-width: var(--pagewidth);
  margin: auto;
  padding-top: 0;
  margin-bottom: 5rem;
}

/* @media (prefers-color-scheme: dark) {
  article,
  main,
  aside {
    border: none;
    box-shadow: none
  }
} */


article,
main {
  flex: 1 0 auto;
}

html, body {
  height: 100%;
}

aside {
  padding-top: 1rem;
}

/*  ======================
    MARK: TYPOGRAPHY IMAGES and TLDR
    ====================== */

/* Paragraphs */

p {
  margin-bottom: 1rem;
  text-wrap: pretty;
}

header p {
  margin: 1rem 0px;
}

sup {
  font-size:x-small;
}

/* Headings - shared */
h1,h2,h3,h4,h5,h6 {
  font-family: var(--heading-font);
  color: var(--bodytext);
  line-height: 1.2;
  margin: 0.4em 0;
  text-wrap: pretty;
}

/* Headings - individual */

h1 {
  font-size: 2.4rem;
  margin-top: 0;
  color: var(--accent);
}
h2 {
  font-size: 1.8rem;
}
h3 {
  font-size: 1.2rem;
}

@media  (width < 768px) {
  h1 {
    font-size: 1.6rem;
  }
  h2 {
    font-size: 1.2rem;
  }
  h3 {
    font-size: 1.0rem;
  }
}


/* keep the space between any heading and the fist paragraph tight */
:where(h1, h2, h3, h4, h5, h6) + p {
  margin-top: 0;
}

strong {
  font-weight: 500;
  font-style: italic;
  color: black;
}

/* @media (prefers-color-scheme: dark) {
  strong {
    color: white;
  }
} */

/* define a highlighter pen style with a bit of overspill */
mark {
padding: 0.2rem 0.5rem;
border-radius: 0.3rem;
background-color: oklch(90% 0.17 97);
}


/* Links */
a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.4s;
}

/* @media (prefers-color-scheme: dark) {
  a {
    color: white;
  }
} */

:where(p, li, figcaption, table) a:hover {
  text-decoration: none;
  color: var(--accent);
}

:where(p, li, figcaption, table) a[href^="http"]::after {
  content: "";
  width: 0.7em;
  aspect-ratio: 1;
  margin-left: 2px;
  background: currentColor;
  display: inline-block;
  mask-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cg id='Group'%3E%3Cg id='Group_2'%3E%3Cpath id='Path' d='M12 12L21 3V10V3H14' stroke='currentColor' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3Cpath id='Path_2' d='M9 3H5C3.895 3 3 3.895 3 5V19C3 20.105 3.895 21 5 21H19C20.105 21 21 20.105 21 19V15' stroke='currentColor' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

/* @media (prefers-color-scheme: dark) {
  :where(p, li, figcaption, table) a[href^="http"]:after {
    content: "\2009" url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='0.7em' height='0.7em' viewBox='0 0 16 16'%3E%3Cpath fill='white' d='M6.01 10.49a.47.47 0 0 1-.35-.15c-.2-.2-.2-.51 0-.71l8.49-8.48c.2-.2.51-.2.71 0c.2.2.2.51 0 .71l-8.5 8.48c-.1.1-.23.15-.35.15' /%3E%3Cpath fill='white' d='M14.5 7c-.28 0-.5-.22-.5-.5V2H9.5c-.28 0-.5-.22-.5-.5s.22-.5.5-.5h5c.28 0 .5.22.5.5v5c0 .28-.22.5-.5.5m-3 8H2.49C1.67 15 1 14.33 1 13.51V4.49C1 3.67 1.67 3 2.49 3H7.5c.28 0 .5.22.5.5s-.22.5-.5-.5H2.49a.49.49 0 0 0-.49.49v9.02c0 .27.22.49.49.49h9.01c.27 0 .49-.22.49-.49V8.5c0-.28.22-.5.5-.5s.5.22.5.5v5.01c0 .82-.67 1.49-1.49 1.49' /%3E%3C/svg%3E");
  }
} */




:where(p, li, figcaption, table) a[href^="http"] {
  border-bottom: 1px solid transparent;
  transition: border-bottom 1s;
}

:where(p, li, figcaption, table) a[href^="http"]:hover {
  border-bottom: 1px solid currentColor;
}

/* blockquotes  */
blockquote {
  border-left: 0.5rem solid var(--accent);
  margin: 2rem 0;
  padding: 1rem;
  font-size: 0.8rem;
}


blockquote::before {
  content: open-quote;
  display: block;
  font-size: 4rem;
  line-height: 1;
  margin-bottom: -1.5rem;
  color: var(--accent);
}

blockquote::after {
  content: no-close-quote;
}

blockquote q {
  font-size: 1.1rem;
}

/* Remove quote from the quote in a blockquote */
blockquote q::before, blockquote q::after  {
  content: "";
}

/* quotes - should also be used within blockquotes */
q {
  font-style: italic;
}


/* abbreviations */
abbr {
  text-decoration:none;
}

abbr:hover {
  cursor: help;
}

/* target inline code only */
p code {
  color: var(--bodytext);
  background-color: WhiteSmoke;
  border-radius: 4px;
  padding: 0.2rem;
  border: 1px solid var(--bodytext);
  white-space: nowrap;
}


/* keyboard buttons */
kbd {
  font-size: 0.8rem;
  font-family: var(--mono-font);
  color: var(--bodytext);
  border: 1px solid var(--bodytext);
  border-bottom: 2.5px solid var(--bodytext);
  border-radius: 4px;
  padding: 0 0.1rem;

}

ul,
ol {
  margin: 2rem 0;
  line-height: 1.6rem;
}

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

/* Figures & images */
figure {
  margin: 2rem 0;
}

/* for use when referencing a figure i.e. ...in image below [<span class="fig-ref">fig. 1</span>] */
.fig-ref {
  font-size: smaller;
  font-style: italic;
}

figcaption {
  counter-increment: figures; /* count the number of fig captions */
  font-size: 80%;
  margin-top: 5px;
  padding-top: 8px;
  font-style: italic;

}

figcaption::before {
  content: "Figure " counter(figures) ". "; /* display the figure number in the caption */
}

/* images */
img {
  display: block;
  margin: auto;
  max-width: 100%;
  height: auto;

}


/* Define the image style for mainbody images that are NOT in galleries, figures etc. */
:where(article, main) :where(figure, img)  {
  padding: 1rem;
  border-radius: var(--radius);
  background: white;
  box-shadow: 0 0 1rem var(--shadow);
  margin-bottom: 9rem;
}


/* Define the image style for mainbody images that are in gallaries, figures etc. i.e. remove the styles defined above */
dialog-image img, dialog img, .paper img, figure img {
  padding: 0;
  border-radius: 0;
  background: none;
  box-shadow: none;
}

/* target figures that contain images with an onclick event (e.g. zoom and enhance article */
/* I tried to add the overlay to the img, not the figure, but for some reason it did not appear. */
figure:has(img[onclick])::before {
  position: absolute;
  content: "click/tap to toggle";
  font-weight: 500;
  font-size: 0.9rem;
  padding: 0.4rem;
  color: white;
  background: rgb(0, 0, 0, 70%);
  /* This lets users click through the overlay to the img below */
  pointer-events: none;
}

/* target image with an onclick event (e.g.zoom and enhance article) */
img[onclick] {
cursor:pointer;
/* remove the blue highlight on img tap on mobile */
-webkit-tap-highlight-color: transparent; 
}

/* rule, only used on About & subscribe pages */
hr {
  margin-bottom: 25px;
}


/*  ======================
    ARTICLE BYLINE (for inner styles see Web Components styles at the end of this file)
    ====================== */


.byline {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--accent);
  margin-bottom: 2rem;
  gap: 0.5rem;
  font-family: var(--cta-font);
}


button {
  /* -webkit-border-radius: var(--radius);
  -moz-border-radius: var(--radius) 5; */
  border-radius: var(--radius);
  font-family: var(--cta-font);
  text-transform: uppercase;
  color: white;
  font-size: 0.8rem;
  background: var(--accent);
  padding: 5px 10px 5px 10px;
  text-decoration: none;
  border-style: none;
  transition: background-color 200ms;
  cursor: pointer;
  touch-action: manipulation; /* The manipulation value disables gestures like ‘double-tap to zoom’. */
  user-select: none; /* disables the ability for text in buttons to be selectable */
}

/* Tint the background when hovering */
button:hover {
  background-color: color-mix(in oklch, var(--accent) 100%, white 10%);
}


/* Shade the background when clicked */
button:active {
  background-color: color-mix(in oklch, var(--accent) 100%, black 20%);
}


  /* Hide the focus ring by default */
  button:focus {
    outline: none
  }

  /* Show the focus ring when using non-mouse input */
  button:focus-visible {
    outline: solid 2px var(--accent);
    outline-offset: 1px;
  }

/*  ======================
    MARK: RELATED ARTICLES
    ====================== */

aside {

  >h1 {
    color: black;
    border-bottom: 1px solid black;
    text-align: center; 
    margin-bottom: -0.5rem; /* Offset the border-bottom upwards by 0.5rem */
    line-height: 0.1em;
    margin: 3rem 0;

    span {
      background: var(--background-color);
      padding:0 1rem;
    }

  }

}


/*  ======================
    MARK: DETAILS & SUMMARY
    ====================== */

/* ====== Details and Summary - normal style====== */
.show-me summary {
  cursor: pointer;
  font-weight: 500;
  color: var(--accent);
  list-style: none;

}

.show-me {
  border-top: 1px solid var(--accent);
  border-bottom: 1px solid var(--accent);
  padding: 5px 0;
}


/* append "open" to the end of summary text */
.show-me summary::after {
  content: " open";
}
/* append "close" to the end of summary text when details is open */
 details.show-me[open] summary::after {
  content: " close";
}

/* ====== Details and Summary for changelog page====== */

/* This flexbox contains 2 children, the filters (left), and the expand/collapse (right) */
.changelog-actions {
  display: flex;
  justify-content: space-between;
  margin-bottom: 1rem;
}

@media  (width < 500px) {
  .changelog-actions {
    flex-direction: column-reverse;
    gap: 0.5rem;
  }
}

.filter-button-row, .changelog-button-row {
  display: flex;
  height: 1.5rem;
}

.filter-btn, .compact-expand-btn {
  border-radius: 0;
  font-family: var(--cta-font);
  text-transform: uppercase;
  color: var(--accent);
  font-size: 0.7rem;
  background: var(--background-color);
  border: var(--accent-light) 1px solid;
  border-left: none;
  transition: background-color 200ms;
  cursor: pointer;
  padding: 0.3rem 0.4rem 0.3rem 0.4rem;
  background-color: white;

}

.filter-btn {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 40px;
  max-width: max-content;
}

.compact-expand-btn {
  width: 25px;
  padding: 0.2rem;

}

/* hover state is the light accent colour */
.filter-btn:hover, .compact-expand-btn:hover {
  background-color: var(--accent-light);
}


/* Active filter is not clickable, selected state is full accent colour */
.filter-btn.active, .compact-expand-btn.active {
  pointer-events: none;
  background-color: var(--accent);
  color: white;
}

.compact-expand-btn svg path {
  fill: var(--accent);
}

.compact-expand-btn.active svg path {
  fill: white;
}

.compact-expand-btn:first-of-type, .filter-btn:first-of-type {
  border-radius: calc(var(--radius)*0.5) 0 0 calc(var(--radius)*0.5);
  border-left: var(--accent-light) 1px solid;
}


.compact-expand-btn:last-of-type, .filter-btn:last-of-type {
  border-radius: 0 calc(var(--radius)*0.5) calc(var(--radius)*0.5) 0;
}

/* Hide the focus ring by default */
.filter-btn:focus, .compact-expand-btn:focus {
  outline: none
}

/* Show the focus ring when using non-mouse input */
.filter-btn:focus-visible, .compact-expand-btn:focus-visible {
  outline: solid 2px var(--accent);
  outline-offset: 1px;
}


  /* set summary elements to flex to enable the tags to be right-aligned */
.changelog summary {
  font-weight: 400;
  display: flex;
  align-items: center; /* centre them vertically */
  cursor: pointer;
  -webkit-tap-highlight-color: rgba(255, 255, 255, 0); /* remove the highlight when tapped */
}

/* gap at top of the details */
.changelog summary+p {
  padding-top: 1rem;
}



/* remove the focus box, and make bold the focus state (for users who tab through the page */
.changelog:focus summary {
  outline: 0;
  font-weight: 500;
}

 .changelog {
  background-color: var(--accent-light);
  border-radius: var(--radius);
  line-height: 1.5rem;
  font-size: 0.9rem;
  margin-bottom: 1rem;
  padding: 0.35rem 0.7rem 0.35rem;

}

/* append ">" to the start of summary text */
.changelog summary::before {
  content: url("data:image/svg+xml,%3Csvg viewBox='0 0 6 10' height='10' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M 1 1 L 5 5 l -4 4' stroke='black'/%3E%3C/svg%3E");
  margin-right: 0.5rem;
  font-size: 1.3rem;
  width: 1.5rem;
  height: 1.5rem;
  text-align: center;
  border-radius: 7px;
  background-color: white;
  display: inline-block;
  margin-left: -5px;
  transition: transform 0.3s ease-out;
}

/* rotate when opened/closed */
.changelog[open] summary::before {
  transform: rotate(90deg);
  -webkit-transform: rotate(90deg); /* added this line for Safari - yet it still doesn't work on Safari :-( */
}

/* remove the arrow on iOS */
 .changelog summary::-webkit-details-marker {
  display: none;
}

/* add a radius to all images on the Changelog page in the details elements */
/* THIS WILL TARGET ALL IMAGES IN <DETAILS> ON ANY PAGES THAT USE <MAIN> */
 .changelog img {
  border-radius: var(--radius);
}

/*  ======================
    changelog tags
    ====================== */

/* Add some margin to the last image in the details - otherwise it's too close to the bottom */
.changelog img:last-of-type {
  margin-bottom: 30px;
}

/* let the first span (i.e. the date and description) expand to take all the available width (forcing tags to be right-aligned */
.changelog summary span:first-of-type {
  flex: 1;
  /* i.e. flex-grow = 1, the other spans (i.e. tags) will default to flex-grow = 0 */
}

/* define the common style for  tags) within summary elements and filter labels */
:where(ux-tag, performance-tag, content-tag, seo-tag, housekeeping-tag)::after, .changelog-filters label {
  font-family: var(--cta-font);
  color: rgb(255, 255, 255);
  border-radius: 3px;
  padding: 2px 5px;
  margin-left: 5px;
  font-size: 0.7rem;
}

/* set individual tag colours */
performance-tag::after, .changelog-filters label[for="performance"] {
  background-color: rgb(180, 163, 66);
  content: "performance";
}

ux-tag::after, .changelog-filters label[for="ux"] {
  background-color: rgb(71, 69, 187);
  content: "UX";
}

content-tag::after, .changelog-filters label[for="content"] {
  background-color: rgb(93, 170, 62);
  content: "content";
}

housekeeping-tag::after, .changelog-filters label[for="housekeeping"] {
  background-color: rgb(223, 139, 82);
  content: "housekeeping";
}

/*  ======================
    social icons
    ====================== */

.icon-row {
  display: flex;
  padding-top: 0.75rem;
}

/* let icons grow to fit the row width */
a.icons {
  flex: 1;
}

/* the fill colour is set in the HTML SVG, and is unique to each icon */
a.icons svg {
  /* grow on hover for 0.7s  */
  transition: all 0.7s ease-in-out;
  stroke: black;
  stroke-width: 0.3px;
}

/* grow on-hover */
a.icons svg:hover {
  transform: scale(1.3);
}

/* remove the square flash you get "on tap" on mobile */
a.icons:active {
  -webkit-tap-highlight-color: transparent;
  /* This feature is non-standard and should not be used without careful consideration. */
}

/* non editable text field for "subscribe to RSS" field */
.textfield {
  border-radius: var(--radius);
  font-family: var(--cta-font);
  text-transform: uppercase;
  font-size: 0.9rem;
  background: white;
  padding: 5px 10px;
  border-style: none;
  width: 33ch;
}


.two-col-readers {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;

  > :nth-child(2n) {
    justify-self: center;
    align-self: center;
    text-align: center;
  }

  @media (width < 700px) {
    display: block;
    > :nth-child(2n) {
      display:none;
    }
  }
}



/*  ======================
    homepage
    ====================== */

/* filter row on homepage */
search {
  /* margin: auto; */
  /* max-width: var(--pagewidth); */
  margin-bottom: 1rem;
}

card-container {
  display: block;
  margin-top: 2rem;
  padding-bottom: 0.6rem;
  color: var(--bodytext);
}


card-footer {
  font-family: var(--cta-font);
}

/* apply general style to card tags */
:where(dataviz-tag, misc-tag, webdev-tag, review-tag, productivity-tag, prodman-tag)::after {
  color: var(--bodytext);
  border-radius: 4px;
  padding: 2px 5px;
  margin-left: 5px;
  font-size: 0.75rem;
  border: 1.5px solid var(--accent);
  background: white;

}

/* apply individual content to card tags */
dataviz-tag::after {
  content: "DataViz";
}

productivity-tag::after {
  content: "Productivity";
}

review-tag::after {
  content: "Review";
}

webdev-tag::after {
  content: "WebDev";
}

misc-tag::after {
  content: "Misc";
}

prodman-tag::after {
  content: "Product Management";
}


/*  ======================
    exercise randomiser in JavaScript article
    ====================== */

#exercise_card {
  border-radius: var(--radius);
  border: 1px solid LightGrey;
  max-width: 30rem;
  margin: auto;
  padding: 30px;
  padding-left: 60px;
  list-style-position: outside;
  margin-top: 40px;
  margin-bottom: 30px;
}

#todays_exercises {
  list-style-position: outside;
  line-height: 2rem;
  padding-bottom: 0px;
}

/*  ======================
  MARK: exercise circuits randomiser in "app"
  ====================== */


#card {
  max-width: 30rem;
  margin: auto;
  padding: 30px;
  font-family: var(--cta-font);
}

#head {
  text-align: center;
  border-bottom: solid 2px var(--accent);
}

#exercises {
  list-style-position: outside;
  line-height: 1.3rem;
  padding-left: 10%;
  margin-top: 40px;
  font-size: 0.9rem;
  background-color: var(--background-color);
}

.app-btn-close {
  position: absolute;
  right: 10px;
  top: 10px;
}

/*  ======================
  BBC non-uk layout post
  ====================== */

  .versus {
    margin-top: 4rem;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 1rem 0;
    max-width: 25rem;
    gap: 2rem;
    .left {

    }
    .center {
      text-align: left;
    }
    .right {
      text-align: left;
    }
    p {
      line-height: 0.5;
    }
  }

  .versus {
    margin: auto;
    margin-top: 4rem;
  }


/*  ======================
  Learning table
  ====================== */

/* table formatting - width is set in media queries */
.learning-log, .comparison-table {
  table-layout:fixed;
  margin: auto;
  text-align: left;
  margin-top: 40px;
  margin-bottom: 40px;
  border-collapse: collapse; /* creates single border between cells */
  box-shadow: 0px 0px 10px 1px var(--shadow);
  border-radius: var(--radius) var(--radius) 0 0;
  overflow: hidden;  /* border radius option above does not work without this  */
  font-family: var(--cta-font);
  color: var(--bodytext);
  background-color: white;

}

/* define the header row font and background colour */
.learning-log th, .comparison-table th {
  font-weight: 400;
  color: var(--bodytext);
  background-color: var(--accent-light);
}

/* pad all header and cell elements */
.learning-log th,
.learning-log td,
.comparison-table th,
.comparison-table td {
  padding: 7px 10px;
}

/* @media (prefers-color-scheme: dark) {
  .learning-log td {
    background-color: var(--card-background-color);
  }
} */


/* fix the width of the 1st column, i.e. the tag column */
.learning-log th:nth-child(1) {
  width: 70px;
}

/* set the last column, i.e the progress indicator to a fixed percentage */
.learning-log th:nth-child(3) {
  width: 30%;
}

/* set column 2 i.e. resource name and link to truncate and show ellipsis */
.learning-log td:nth-child(2) {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* override the usual link colour of black */
.learning-log a{
  color: var(--bodytext);
}

/* define the style of the progress container */
progress-meter {
  display: block;
  height: 10px;
  box-shadow: 0px 0px 6px 1px rgba(0,0,0,0.1);
  border-radius: 5px;
  padding: 1px;
}

/* define the style of the inside of the progress container */
progress-percent {
  display: block;
  height: 100%;
  overflow: hidden;
  border-radius: 5px;
  background-color: LightCoral;
  width: calc(var(--progress) * 1%);
  font-family: var(--cta-font);
}

/* change the colour when the progress is 100% */
progress-percent[style="--progress: 100"] {
  display: block;
  height: 100%;
  overflow: hidden;
  border-radius: 6px;
  background-color: LightSeaGreen;
  width: calc(var(--progress) * 1%);
  font-family: var(--cta-font);
}

/* format the common tag elements */
:where(course-tag, tutorial-tag, book-tag, video-tag, practice-tag):before {
  font-size: 0.7rem;
  font-family: var(--cta-font);
  color: white;
  border-radius: 3px;
  padding: 1px 5px;
  margin-left: 5px;
}

/* now format the specific tags, including the text */
course-tag:before {
  background-color: rgb(101, 168, 75);
  content: "course";
}

tutorial-tag:before {
  background-color: rgb(153, 75, 168);
  content: "tutorial";
}

book-tag:before {
  background-color: rgb(82, 143, 223);
  content: "book";
}

video-tag:before {
  background-color: rgb(226, 128, 99);
  content: "video";
}

practice-tag:before {
  background-color: rgb(241, 63, 93);
  content: "practice";
}


/*  ======================
  MARK: Image gallery (requires <dialog-image> Web Component)
  ====================== */

  .image-gallery {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 2rem 0;
    -webkit-tap-highlight-color: transparent;
  }

  .image-gallery > dialog-image {
    flex-grow: 1;
    height: 150px;
    cursor: pointer;
    position: relative;
  }

  .image-gallery > dialog-image > a > img {
    object-fit: cover;
    width: 100%;
    height: 100%;
    vertical-align: middle;
    border-radius: 5px;
  }

   .image-gallery::after {
    content: "";
    flex-grow: 999;
  }

  /* don't allow background content to scroll when the dialog is open */
  body:has(dialog[open]) {
    overflow: hidden;
  }

/*  ======================
  MARK: Web Components - see web-components-v2.js for innerHTML
  ====================== */

/* —————image dialog modal popup Web Component————— */

dialog-image {

  & dialog {
      border: solid white 2px;
      background: rgba(0, 0, 0, 0.9);
      margin: auto;
      border-radius: var(--radius);
      box-shadow: 0px 0px 20px rgba(0, 0, 0, 1);
      padding-bottom: 1rem;
      cursor:auto;
    }

    & ::backdrop {
      background: rgba(0, 0, 0, 0.8);
      backdrop-filter: blur(4px);
    }

    & form {
        display: flex;
        flex-direction: column;
        align-items: center;
        font-family: var(--cta-font);

         & button:disabled {
          background-color: grey;
          color: white;
          cursor: not-allowed;
          opacity: 0.5;
         }

         & footer {
          background: black;
         }

          & p {
            padding: 0rem 3rem;
            color: white;
            font-family: var(--body-font);
            line-height: 1.6;
          }

        @media  (width < 768px) {
          & p {
          padding: 0rem 1rem;
          }
        }
  }

}


/* Feedback footer Web Component */

footer {
  background-color: var(--accent-light);
  flex-shrink: 0;
}

footer div {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

footer img {
  height: 60px;
  aspect-ratio: 1/1;
  border-radius: 50%;
  border: 2px solid var(--accent);
  display: inline-block;
  box-shadow: 0px 0px 7px 0px var(--accent);
}

feedback-contact {
  display: flex;
  justify-content:space-between;
  align-items: center;
  font-weight: 500;
  font-family: var(--cta-font);
  max-width: var(--pagewidth);
  margin: auto;
  padding: 1rem;

    @media (width < 768px) {
      flex-direction: column;
      justify-content: center;
    }

    & svg {
      width: 8rem;
    }

    & p {
      margin: 1rem;

      & a {
        color: var(--accent); 
          }

    }

}



/* —————social icons Web Component, all styles are in component————— */


/* —————Table of Contents Web Component————— */

table-of-contents {

  width: 13rem;
  position: fixed;
  margin-left: calc(47vw - 35rem);
  margin-top: 3rem;
  font-family: var(--cta-font);
  color: var(--accent);
  padding-left: 1rem;
  border-left: 2px solid var(--accent-light);

    @media (width > 88rem) {
      display: block;
      animation: fade-in 0.5s ease-in;
    }

/* For some reason (that I don't understand), this was causing the Print media query NOT to remove the ToC when printing, until I added an !important to the Print query */
    
    @media (width <= 92rem) {
      display: none;
      animation: fade-out 0.5s ease-out;
    }

    & ul {
      margin: 0;
      padding: 0;
      font-size: 0.9rem;
    }

    & li {
      text-overflow: ellipsis;
      overflow: hidden;
      white-space: nowrap;
      line-height: 1.7;
      margin-left: -2.5rem;

      & :last-of-type {
          margin-bottom: 1rem;
        }

      & a { 
        color: var(--bodytext);
      }

    }
}

    
    /* Define the fade-in animation */
    @keyframes fade-in {
      from {
        opacity: 0;
        display: none;
      }
      to {
        opacity: 1;
        display: block;
      }
    }
    
    /* Define the fade-out animation */
    @keyframes fade-out {
      from {
        display: block;
        opacity: 1;
      }
      to {
        display: none;
        opacity: 0;
      }
    }



/* —————global nav Web Component————— */

/* add some scrollmargin so the heading or top of figure is visible below the fixed global navigation */
h2, figure {
  scroll-margin-top: 3rem;
}

/* make the nav stick to the top of the page when the gap benwteen the nav and the top of the page is zero i.e. always */


global-nav {
  display: block;
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
  background-color: var(--card-background-color);
  max-width: var(--pagewidth);
  width: 100%;
  margin: auto;
  font-family: var(--cta-font);
  box-shadow: 0 5px 5px -2px var(--card-background-color);
  border-bottom: solid 2px var(--accent-light);
  position: sticky;
  top: 0;
  z-index: 1;
  margin-bottom: 1rem;

  & ul {
    display: flex;
    gap: 1rem;
    list-style-type: none;
    margin: 0 !important;
  }

  & li {
    & a {
    padding: 0.6rem 0;
    }

    /* this forces all elements to the right of the Home button to move to the far-right */
    &:first-child {
      margin-right: auto;
    }
  }

  & a {
    color: var(--accent);
    padding: 5px 10px;
    text-decoration: none;
    border-bottom: 3px solid transparent;
      &:hover,
      &.nav-active {
        border-bottom: 3px solid var(--accent);
        transition: border-color 1s ease;
    }
  }

}


/* set Print styles */
@media print {

  /* reduce the root font size */
  :root {
    font-size:small;
  }

  /* Hide nav and outline */
  table-of-contents, global-nav, social-icons, aside, footer  {
      display: none !important; /* hide the ToC,important is required as this wasn't working due to the media query on small screens that fades out the ToC */
    }

 /* Hide article border */
    article, main {
      border: none;
      box-shadow: none;
    }

  }