:root {
  --primary: #1f3a5f;
  --secondary: #f4f6f8;
  --accent: #8b1e3f;
  --text: #222;
  --max-width: 1100px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, sans-serif;
  color: var(--text);
  line-height: 1.6;
  background: #fff;
}

header {
  background: var(--primary);
  color: white;
  padding: 4rem 1.5rem;
}

header h1 {
  font-family: "Libre Baskerville", serif;
  font-size: 2.8rem;
  margin-bottom: 0.5rem;
}

header p {
  font-size: 1.2rem;
  max-width: 700px;
}

.site-nav {
  margin-top: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.2rem;
  flex-wrap: wrap;
}

.site-nav a,
.site-nav summary {
  color: white;
  text-decoration: none;
  font-weight: 500;
  cursor: pointer;
}

.site-nav a:hover,
.site-nav summary:hover {
  text-decoration: underline;
}

.site-nav summary {
  list-style: none;
}

.site-nav summary::-webkit-details-marker {
  display: none;
}

.nav-dropdown {
  position: relative;
}

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 0.5rem);
  left: 0;
  z-index: 10;
  min-width: 260px;
  background: white;
  border-radius: 10px;
  padding: 0.4rem 0;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.18);
}

.nav-dropdown-menu a {
  display: block;
  padding: 0.55rem 0.9rem;
  margin-right: 0;
  color: var(--primary);
  font-weight: 600;
  text-decoration: none;
}

.nav-dropdown-menu a:hover {
  background: rgba(244, 246, 248, 0.9);
  text-decoration: none;
}

.nav-dropdown:not([open]) .nav-dropdown-menu {
  display: none;
}

.nav-caret {
  display: inline-block;
  margin-left: 0.25rem;
  transform: translateY(-1px);
}

.nav-dropdown[open] .nav-caret {
  transform: translateY(-1px) rotate(180deg);
}

section {
  padding: 4rem 1.5rem;
}

.container {
  max-width: var(--max-width);
  margin: auto;
}

h2 {
  font-family: "Libre Baskerville", serif;
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--primary);
}

.about {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 2rem;
  align-items: center;
}

.about img {
  width: 100%;
  border-radius: 4px;
}

.books {
  background: var(--secondary);
}

.book-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2.5rem;
  margin-top: 2rem;
}

.book {
  background: white;
  padding: 1.5rem;
  border-radius: 6px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.06);
  display: flex;
  flex-direction: column;
}

.book img {
  width: 100%;
  margin-bottom: 1rem;
}

.book h3 {
  font-family: "Libre Baskerville", serif;
  margin-bottom: 0.5rem;
  color: var(--accent);
}

.book p {
  font-size: 0.95rem;
}

.quote {
  margin: 1rem 0;
  padding: 1rem 1.1rem;
  border-left: 4px solid rgba(139, 30, 63, 0.55);
  background: rgba(244, 246, 248, 0.75);
  border-radius: 6px;
}

.quote blockquote {
  margin: 0;
  font-style: italic;
}

.quote figcaption {
  margin-top: 0.6rem;
  font-style: normal;
  font-weight: 700;
  color: #333;
}

.quote .quote-sub {
  display: block;
  margin-top: 0.15rem;
  font-weight: 600;
  color: #555;
}

.quote.compact {
  padding: 0.85rem 1rem;
}

.quote.compact blockquote {
  font-size: 0.92rem;
}

.quote.compact figcaption {
  font-size: 0.9rem;
}

.book a:not(.btn) {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
}

.book a:hover {
  text-decoration: underline;
}

.book-actions {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  flex-wrap: wrap;
  margin-top: auto;
}

.btn {
  display: inline-block;
  padding: 0.65rem 1rem;
  border-radius: 999px;
  font-weight: 700;
  border: 1px solid transparent;
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: white;
}

.btn-primary:hover {
  filter: brightness(0.95);
  text-decoration: none;
}

.btn-secondary {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.35);
  color: white;
}

.btn-secondary:hover {
  text-decoration: none;
  background: rgba(255, 255, 255, 0.08);
}

.page-lede {
  max-width: 820px;
}

.detail {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 2.5rem;
  align-items: start;
}

.detail img {
  width: 100%;
  border-radius: 6px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}

.detail .meta {
  color: #444;
  margin-top: 0.25rem;
}

.detail .actions {
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
  margin-top: 1.25rem;
}

.detail .actions a:not(.btn) {
  align-self: center;
}

footer {
  background: var(--primary);
  color: white;
  padding: 2rem 1.5rem;
  text-align: center;
  font-size: 0.9rem;
}

@media (max-width: 900px) {
  .detail {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .about {
    grid-template-columns: 1fr;
  }

  header h1 {
    font-size: 2.2rem;
  }
}