:root {
  --font-family: Inter, -apple-system, BlinkMacSystemFont, 'Segoe UI', Cantarell, Roboto, Oxygen, Ubuntu, 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
  --font-family-monospace: Consolas, Menlo, Monaco, Andale Mono WT, Andale Mono, Lucida Console, Lucida Sans Typewriter, DejaVu Sans Mono, Bitstream Vera Sans Mono, Liberation Mono, Nimbus Mono L, Courier New, Courier, monospace;
  --text-color: #212529;
  --border-color: rgba(0,0,0,0.1);
  --hover-color: rgba(0,0,0,0.05);
  --background-color: #f8f9fa;
  --well-color: #e9ecef;
  --accent-color: #1971c2;
}

@media (prefers-color-scheme: dark) {
  :root {
    --text-color: #f1f3f5;
    --background-color: #212529;
    --well-color: #343a40;
    --accent-color: #d0ebff;
  }
}

// Don't change this one, it's just to
// make code more readable
$lineheight: 1rem;

@mixin paragraph() {
  padding:0;
  margin:0;
  margin-bottom: $lineheight;
}

html {
	font-family: var(--font-family);
	text-align: left;
	font-size: 17px;
  background-color: var(--background-color);
  accent-color: var(--accent-color);
	line-height: 1.6rem;
}

body {
	color: var(--text-color);
	font-weight: 400;
  max-width: 800px;
  padding:1rem;
  margin: auto;
}

nav ul {
  display: flex;
  padding: .5rem 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  li {
    list-style-type: none;
    margin:0;
    a, span {
      padding: .5rem;
    }
  }
}

strong {
	font-weight: 600;
}

em {
	font-style: italic;
}

a {
  color: var(--accent-color);
  text-decoration:none;
  border-radius: 3px;
  padding: 1px;
  &:hover {
    background-color: var(--hover-color);
  }
}

p, time {
  @include paragraph();
  &:last-child {
    margin-bottom:0;
  }
}

ul, ol {
  @include paragraph();
  ul {
    margin-bottom:0;
  }
  li {
    margin-left: $lineheight;
  }
}

/* sup, sub */

sup, sub {
  margin:0;
  padding:0;
  line-height:$lineheight;
  font-size: 0.8rem;
  vertical-align:baseline;
  position:relative;
}

sup {
  top: -$lineheight/4;
}

sub {
  top: $lineheight/4;
}


::selection, ::-moz-selection { background: var(--accent-color); color: var(--background-color); }

/* ------------------ TITLES ------------------- */

@mixin title($size, $weight) {
	font-size: $size;
	font-weight: $weight;
}

h1, h2, h3, h4, h5, h6 {
  text-align: left;
	line-height: 1;
	padding:0;
	margin:0;
	font-weight:400;
	margin-bottom: $lineheight;
}

h1 {
  @include title(2.3333333rem, 700);
}

h2 {
  @include title(2rem, 700);
}

h3 {
  @include title(1.5rem, 700);
}

h4 {
  @include title(1.5rem, 600);
}

h5 {
  @include title(1.333333rem, 600);
}

h6 {
  @include title(1.1rem, 600);
}

/* ------------------ HR ------------------- */

hr {
  border-top: 0px;
  border-left: 0px;
  border-right: 0px;
  border-bottom: 1px;
  border-color: var(--border-color);
  border-style: solid;
  padding:0;
  margin:0;
  margin-bottom: $lineheight;
}

/* ------------------ QUOTE ------------------- */

@mixin well() {
  border-width: 0 0 0 $lineheight/4;
	border-style: solid;
	border-radius: $lineheight/8;
	margin:0;
	margin-bottom: $lineheight;
	padding: $lineheight;
    font-size:1.1rem;
	
	max-width: 100%;
    overflow: auto;
}

blockquote {
  @include well();
	border-color: var(--accent-color);
	background-color:var(--well-color);
}

pre {
  @include well();
	border-color: var(--accent-color);
	background-color:var(--well-color);
}

code {
	background-color:var(--well-color);
  padding: 5px;
  border-radius: 3px;
}


/* ------------------ SPECIAL STYLING ------------------- */

mark {
  border-radius: 0.2em;
  padding:0 $lineheight/4 0 $lineheight/4;
  
  background-color:rgba(255,255,0,0.33);
  color: inherit;
}

/* ------------------ SPECIAL STYLING ------------------- */

.time {
	font-style: italic;
	text-align: right;
	width: 100%;
	display: block;
    font-size: 0.9rem;
}