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

:root {
  --bg: #fffff8;
  --text: #111111;
  --text-muted: #63625a;
  --line: rgba(17, 17, 17, 0.15);
  --underline: #333333;
  --selection: #e8dcc8;
}

html[data-theme="dark"] {
  --bg: #161618;
  --text: #d4d0c8;
  --text-muted: rgba(212, 208, 200, 0.6);
  --line: rgba(212, 208, 200, 0.15);
  --underline: #d4d0c8;
  --selection: #6b5438;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 118%;
  background-color: var(--bg);
}

body {
  max-width: 900px;
  margin: 0 auto;
  padding: 4rem 1.5rem 3rem;
  font-family: "et-book", Palatino, "Palatino Linotype", "Palatino LT STD", "Book Antiqua", Georgia, serif;
  font-size: 1.15rem;
  line-height: 1.7;
  background-color: var(--bg);
  color: var(--text);
  transition: background-color 0.2s ease, color 0.2s ease;
}

::selection {
  background: var(--selection);
}

header {
  text-align: center;
  margin-bottom: 4rem;
}

header h1 {
  margin: 0 0 1.1rem;
  font-weight: 400;
  font-size: 2.5rem;
  letter-spacing: -0.01em;
}

nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.8rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

nav a {
  color: var(--text);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
}

nav a:hover {
  border-bottom-color: var(--underline);
}

#theme-toggle {
  width: 1.9rem;
  height: 1.9rem;
  margin-left: 0.25rem;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: none;
  color: var(--text);
  font-size: 0.9rem;
  line-height: 1;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

#theme-toggle:hover {
  border-color: var(--underline);
}

section {
  margin-bottom: 2.5rem;
}

h2 {
  font-style: italic;
  font-weight: 400;
  font-size: 1.5rem;
  line-height: 1.25;
  margin: 0 0 0.9rem;
}

section > h2 {
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--line);
}

.links > h2 {
  padding-bottom: 0;
  border-bottom: none;
}

p {
  margin: 1.1rem 0;
}

ul {
  padding-left: 1.4rem;
}

li {
  margin: 0.35rem 0;
}

a:link,
a:visited {
  color: inherit;
}

main a:link {
  text-decoration: underline;
  text-decoration-color: var(--underline);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
  text-decoration-skip-ink: auto;
}

.review-card:link,
.review-card:visited {
  text-decoration: none;
}

article {
  margin-bottom: 2.5rem;
}

article .meta {
  font-size: 0.9rem;
  font-style: italic;
  color: var(--text-muted);
  margin: 0.2rem 0 1.2rem;
}

footer {
  border-top: 1px solid var(--line);
  margin-top: 4rem;
  padding-top: 1.25rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.review-container {
  display: flex;
  align-items: flex-start;
  gap: 1.75rem;
}

.book-cover {
  width: 120px;
  height: auto;
  border-radius: 2px;
  box-shadow: 0 1px 3px var(--line);
  flex-shrink: 0;
}

.review-text {
  flex: 1;
}

.about-intro {
  display: flex;
  align-items: center;
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.about-intro .profile-pic {
  width: 320px;
  height: auto;
  border-radius: 2px;
  box-shadow: 0 1px 3px var(--line);
  flex-shrink: 0;
}

.disclaimer {
  font-style: italic;
  font-size: 1.05rem;
  color: var(--text-muted);
  text-align: center;
  margin: 0 auto 2.5rem;
  max-width: 480px;
  line-height: 1.6;
}

.disclaimer cite {
  display: block;
  margin-top: 0.6rem;
  font-style: normal;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 2.5rem 1.5rem;
}

.review-card {
  color: inherit;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.review-card img {
  width: 120px;
  aspect-ratio: 2 / 3;
  object-fit: cover;
  border-radius: 2px;
  box-shadow: 0 1px 3px var(--line);
  margin-bottom: 0.7rem;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.review-card:hover img {
  box-shadow: 0 4px 10px var(--line);
  transform: translateY(-2px);
}

.review-meta h2 {
  font-style: normal;
  font-size: 1rem;
  margin: 0.3rem 0 0.15rem;
  line-height: 1.3;
}

.review-meta p {
  margin: 0;
  font-size: 0.85rem;
  font-style: italic;
  color: var(--text-muted);
}

@media (max-width: 640px) {
  body {
    padding: 3rem 1.25rem 2.5rem;
    font-size: 1.05rem;
  }

  header h1 {
    font-size: 2rem;
  }

  .about-intro {
    flex-direction: column;
    text-align: center;
  }

  .about-intro .profile-pic {
    width: 220px;
  }

  .review-container {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}