body {
  font-family: system-ui, sans-serif;
  background: #f7f5f2;
  color: #2b2b2b;
  margin: 0;
  padding: 2rem;
}

.container {
  max-width: 600px;
  margin: 0 auto;
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

h1 {
  margin-top: 0;
}

#add-book-form {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

#add-book-form input {
  flex: 1;
  padding: 0.5rem;
  border: 1px solid #ccc;
  border-radius: 6px;
}

#add-book-form input#year {
  flex: 0 0 80px;
}

button {
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 6px;
  background: #3d5a80;
  color: white;
  cursor: pointer;
}

button:hover {
  background: #2f4864;
}

.error {
  color: #b3261e;
  font-size: 0.9rem;
}

#search {
  width: 100%;
  box-sizing: border-box;
  padding: 0.5rem;
  margin-bottom: 1rem;
  border: 1px solid #ccc;
  border-radius: 6px;
}

#book-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

#book-list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid #eee;
}

#book-list li.read .title {
  text-decoration: line-through;
  color: #888;
}

.book-info {
  flex: 1;
}

.title {
  font-weight: 600;
}

.meta {
  font-size: 0.85rem;
  color: #777;
}

.stars {
  margin-top: 0.25rem;
}

.star {
  cursor: pointer;
  color: #ccc;
  font-size: 1.1rem;
}

.star.filled {
  color: #f0a500;
}

.star:hover {
  color: #f0a500;
}

.delete-btn {
  background: #b3261e;
}

.delete-btn:hover {
  background: #8f1e18;
}
#sort-books {
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 6px;
  background: #3d5a80;
  color: white;
  cursor: pointer;
}