@font-face {
  font-family: "et-book";
  src: url("tufte/et-book/et-book-roman-line-figures/et-book-roman-line-figures.woff") format("woff");
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "et-book";
  src: url("tufte/et-book/et-book-display-italic-old-style-figures/et-book-display-italic-old-style-figures.woff") format("woff");
  font-weight: normal;
  font-style: italic;
  font-display: swap;
}

@font-face {
  font-family: "et-book";
  src: url("tufte/et-book/et-book-bold-line-figures/et-book-bold-line-figures.woff") format("woff");
  font-weight: bold;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "et-book";
  src: url("tufte/et-book/et-book-semi-bold-old-style-figures/et-book-semi-bold-old-style-figures.woff") format("woff");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

/* ET Book class for easy application */
.et-book {
  font-family: et-book, 'Crimson Text', Palatino, "Palatino Linotype", "Palatino LT STD", "Book Antiqua", Georgia, serif;
}

/* Ensure proper text rendering */
.et-book {
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}