:root {
  --paper: #f8f1e3;
  --ink: #2c2118;
  --muted: #6f5f4f;
  --rule: #d2bfa3;
  --accent: #7c2d26;
  --card: #fffaf0;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 18px;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
}

.site-header,
.site-footer,
main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem;
}

.site-header {
  border-bottom: 1px solid var(--rule);
}

.site-title {
  color: var(--ink);
  font-size: 2rem;
  font-weight: bold;
  text-decoration: none;
}

.site-header p,
.meta,
.subtitle {
  color: var(--muted);
}

.hero {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr;
  gap: 3rem;
  align-items: center;
  padding: 5rem 0;
}

.hero h1 {
  font-size: clamp(2.4rem, 6vw, 5rem);
  line-height: 1;
  margin: 0.2em 0;
}

.hero-cover,
.book-card img {
  width: 100%;
  border: 1px solid var(--rule);
  box-shadow: 0 1rem 2rem rgb(44 33 24 / 20%);
}

.hero-text {
  padding-right: 2rem;
}

.hero h1 a {
  color: var(--ink);
  text-decoration: none;
}

.hero h1 a:hover {
  color: var(--accent);
}

.hero h1,
.book-page h1 {
  line-height: 1.05;
}

.subtitle {
  font-size: 1.15rem;
}

.eyebrow {
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: bold;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.book-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.book-card {
  background: var(--card);
  border: 1px solid var(--rule);
  padding: 1rem;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease;
}

.book-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 1rem 2rem rgb(44 33 24 / 12%);
}

.book-card h2 {
  line-height: 1.15;
}

.about {
  margin-top: 3rem;
  padding: 2rem;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  text-align: center;
}

.site-footer {
  color: var(--muted);
  font-size: 0.95rem;
}

.site-footer a {
  color: var(--ink);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--accent);
}

.book-detail {
  display: grid;
  grid-template-columns: 1.1fr 0.8fr;
  gap: 3rem;
  align-items: start;
  padding: 3rem 0;
}

.book-detail > div {
  max-width: 42rem;
}

.book-page h1 {
  font-size: clamp(2.5rem, 7vw, 5rem);
  line-height: 1;
  margin: 0.2em 0;
}

.books-index h1 {
  font-size: clamp(2.5rem, 7vw, 5rem);
  line-height: 1.05;
}

.books-list {
  margin: 2rem 0;
  padding-left: 0;
  list-style: none;
}

.books-list li {
  padding: 1rem 0;
  border-bottom: 1px solid var(--rule);
}

.books-list a {
  color: var(--ink);
  font-size: 1.4rem;
  font-weight: bold;
  text-decoration: none;
}

.books-list a:hover {
  color: var(--accent);
}

.books-list span {
  display: block;
  color: var(--muted);
}

.standfirst {
  font-size: 1.25rem;
}

.book-detail-cover {
  width: 100%;
  border: 1px solid var(--rule);
  box-shadow: 0 1rem 2rem rgb(44 33 24 / 20%);
}

.book-card a,
.back-link a {
  color: var(--ink);
}

.book-card h2 a {
  text-decoration: none;
}

.book-card h2 a:hover,
.back-link a:hover {
  color: var(--accent);
}

blockquote {
  margin: 2rem 0;
  padding: 1.5rem 2rem;
  border-left: 4px solid var(--accent);
  background: var(--card);
  font-style: italic;
  font-size: 1.15rem;
  color: var(--muted);
}

.contents-list {
  margin: 1.5rem 0;
  padding-left: 1.5rem;
}

.contents-list li {
  margin-bottom: 0.75rem;
}

.contents-list li::marker {
  color: var(--accent);
  font-weight: bold;
}

.book-cover-link {
  display: block;
}

.cover-lightbox {
  position: fixed;

  top: 0;
  left: 0;

  width: 100vw;
  height: 100vh;

  margin: 0;

  inset: 0;
  z-index: 1000;

  display: none;
  align-items: center;
  justify-content: center;

  padding: 2rem;

  background: rgb(44 33 24 / 92%);
}

.cover-lightbox:target {
  display: flex;
}

.cover-lightbox img {
  display: block;

  max-width: min(90vw, 42rem);
  max-height: 90vh;

  width: auto;
  height: auto;

  box-shadow: 0 2rem 4rem rgb(0 0 0 / 45%);
}

.cover-close {
  position: fixed;
  top: 1rem;
  right: 1.5rem;

  color: white;
  font-size: 3rem;
  line-height: 1;
  text-decoration: none;
}

@media (max-width: 800px) {
  .book-detail {
    grid-template-columns: 1fr;
  }

  .book-detail-cover {
    max-width: 24rem;
  }
}

@media (max-width: 800px) {
  .hero,
  .book-grid {
    grid-template-columns: 1fr;
  }

  .hero-cover {
    max-width: 20rem;
  }
}