/* Adapted from Tufte CSS | https://edwardtufte.github.io/tufte-css/ */

@font-face {
  font-family: "et-book";
  src: url("/fonts/et-book/et-book-roman-line-figures/et-book-roman-line-figures.eot");
  src: url("/fonts/et-book/et-book-roman-line-figures/et-book-roman-line-figures.eot?#iefix") format("embedded-opentype"), url("/fonts/et-book/et-book-roman-line-figures/et-book-roman-line-figures.woff") format("woff"), url("/fonts/et-book/et-book-roman-line-figures/et-book-roman-line-figures.ttf") format("truetype"), url("/fonts/et-book/et-book-roman-line-figures/et-book-roman-line-figures.svg#etbookromanosf") format("svg");
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "et-book";
  src: url("/fonts/et-book/et-book-display-italic-old-style-figures/et-book-display-italic-old-style-figures.eot");
  src: url("/fonts/et-book/et-book-display-italic-old-style-figures/et-book-display-italic-old-style-figures.eot?#iefix") format("embedded-opentype"), url("/fonts/et-book/et-book-display-italic-old-style-figures/et-book-display-italic-old-style-figures.woff") format("woff"), url("/fonts/et-book/et-book-display-italic-old-style-figures/et-book-display-italic-old-style-figures.ttf") format("truetype"), url("/fonts/et-book/et-book-display-italic-old-style-figures/et-book-display-italic-old-style-figures.svg#etbookromanosf") format("svg");
  font-weight: normal;
  font-style: italic;
  font-display: swap;
}

@font-face {
  font-family: "et-book";
  src: url("/fonts/et-book/et-book-bold-line-figures/et-book-bold-line-figures.eot");
  src: url("/fonts/et-book/et-book-bold-line-figures/et-book-bold-line-figures.eot?#iefix") format("embedded-opentype"), url("/fonts/et-book/et-book-bold-line-figures/et-book-bold-line-figures.woff") format("woff"), url("/fonts/et-book/et-book-bold-line-figures/et-book-bold-line-figures.ttf") format("truetype"), url("/fonts/et-book/et-book-bold-line-figures/et-book-bold-line-figures.svg#etbookromanosf") format("svg");
  font-weight: bold;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "et-book-roman-old-style";
  src: url("/fonts/et-book/et-book-roman-old-style-figures/et-book-roman-old-style-figures.eot");
  src: url("/fonts/et-book/et-book-roman-old-style-figures/et-book-roman-old-style-figures.eot?#iefix") format("embedded-opentype"), url("/fonts/et-book/et-book-roman-old-style-figures/et-book-roman-old-style-figures.woff") format("woff"), url("/fonts/et-book/et-book-roman-old-style-figures/et-book-roman-old-style-figures.ttf") format("truetype"), url("/fonts/et-book/et-book-roman-old-style-figures/et-book-roman-old-style-figures.svg#etbookromanosf") format("svg");
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

html {
  font-size: 16px;
}

body {
  margin: 4vw auto 16vw;
  padding: 1rem;
  max-width: 736px;
  font-family: et-book, Palatino, "Palatino Linotype", "Palatino LT STD", "Book Antiqua", Georgia, serif;
  font-size: 1.375rem;
  line-height: 1.5;
  background-color: #fffff8;
  color: #111;
}

/* Adds dark mode */
@media (prefers-color-scheme: dark) {
  body {
    background-color: #151515;
    color: #ddd;
  }
}

header {
  display: flex;
  align-items: center;
  margin-bottom: 6rem;
  line-height: 0;
}

header h1 {
  margin: 0;
  font-size: 1.625rem;
}

header img {
  margin-right: 1rem;
  width: 4.5rem;
  height: 4.5rem;
  border-radius: 50%;
}

h1,
h2,
h3 {
  margin: 4rem 0 1.5rem;
  font-family: "Gill Sans", "Gill Sans MT", Calibri, sans-serif;
  font-weight: 400;
  line-height: 1;
  letter-spacing: .03em;
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.625rem;
}

hr {
  display: block;
  height: 1px;
  border: 0;
  border-top: 1px solid #ccc;
  margin: 1em 0;
  padding: 0;
}

/* Links: replicate underline that clears descenders */
a:link,
a:visited {
  color: inherit;
}

a:link {
  text-decoration: none;
  background: -webkit-linear-gradient(#fffff8, #fffff8), -webkit-linear-gradient(#fffff8, #fffff8), -webkit-linear-gradient(currentColor, currentColor);
  background: linear-gradient(#fffff8, #fffff8), linear-gradient(#fffff8, #fffff8), linear-gradient(currentColor, currentColor);
  -webkit-background-size: 0.05em 1px, 0.05em 1px, 1px 1px;
  -moz-background-size: 0.05em 1px, 0.05em 1px, 1px 1px;
  background-size: 0.05em 1px, 0.05em 1px, 1px 1px;
  background-repeat: no-repeat, no-repeat, repeat-x;
  text-shadow: 0.03em 0 #fffff8, -0.03em 0 #fffff8, 0 0.03em #fffff8, 0 -0.03em #fffff8, 0.06em 0 #fffff8, -0.06em 0 #fffff8, 0.09em 0 #fffff8, -0.09em 0 #fffff8, 0.12em 0 #fffff8, -0.12em 0 #fffff8, 0.15em 0 #fffff8, -0.15em 0 #fffff8;
  background-position: 0% 93%, 100% 93%, 0% 93%;
}

blockquote {
  margin-right: 0;
}

@media screen and (-webkit-min-device-pixel-ratio: 0) {
  a:link {
    background-position-y: 87%, 87%, 87%;
  }
}

/* Adds dark mode */
@media (prefers-color-scheme: dark) {
  a:link {
    text-shadow: 0.03em 0 #151515, -0.03em 0 #151515, 0 0.03em #151515, 0 -0.03em #151515, 0.06em 0 #151515, -0.06em 0 #151515, 0.09em 0 #151515, -0.09em 0 #151515, 0.12em 0 #151515, -0.12em 0 #151515, 0.15em 0 #151515, -0.15em 0 #151515;
  }
}

a:link::selection,
a:link::-moz-selection {
  text-shadow: 0.03em 0 #b4d5fe, -0.03em 0 #b4d5fe, 0 0.03em #b4d5fe, 0 -0.03em #b4d5fe, 0.06em 0 #b4d5fe, -0.06em 0 #b4d5fe, 0.09em 0 #b4d5fe, -0.09em 0 #b4d5fe, 0.12em 0 #b4d5fe, -0.12em 0 #b4d5fe, 0.15em 0 #b4d5fe, -0.15em 0 #b4d5fe;
  background: #b4d5fe;
}

@media (min-width: 768px) {

  body {
    font-size: 1.5rem;
  }

  header h1 {
    font-size: 2rem;
  }

  header img {
    margin-right: 1.25rem;
  }

  h1 {
    font-size: 3rem;
  }
  
  h2 {
    font-size: 2.5rem;
  }
  
  h3 {
    font-size: 2rem;
  }

}