Add ebook metadata, author and cover display

static/styles.css

@@ -1,20 +1,32 @@
 :root {
   color-scheme: light;
+  --bg: #f6f4ee;
+  --surface: #ffffff;
+  --surface-muted: #f0ece2;
+  --text: #1d1b16;
+  --muted: #6b6458;
+  --border: #d6cebf;
+  --shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
 }
 
 html, body {
   margin: 0;
   padding: 0;
-  background: #fff;
-  color: #000;
+  background: var(--bg);
+  color: var(--text);
   font-family: Arial, sans-serif;
   font-size: 18px;
   line-height: 1.45;
 }
 
+img {
+  max-width: 100%;
+}
+
 .header {
-  border-bottom: 2px solid #000;
-  padding: 0.75rem 1rem;
+  border-bottom: 1px solid var(--border);
+  background: var(--surface);
+  padding: 0.9rem 1rem;
 }
 
 .header h1 {
@@ -29,51 +41,174 @@ html, body {
 
 .container {
   padding: 1rem;
-  max-width: 42rem;
+  max-width: 56rem;
+  margin: 0 auto;
 }
 
 h2 {
   margin-top: 0;
-  font-size: 1.25rem;
+  font-size: 1.4rem;
+}
+
+.page-head {
+  margin-bottom: 1rem;
+}
+
+.page-subtitle {
+  margin: 0.35rem 0 0;
+  color: var(--muted);
+  font-size: 0.95rem;
 }
 
 .book-list {
   list-style: none;
   margin: 0;
   padding: 0;
+  display: grid;
+  gap: 0.85rem;
 }
 
 .book-item {
-  border: 1px solid #000;
-  margin-bottom: 0.6rem;
-  padding: 0.6rem;
+  margin: 0;
 }
 
-.book-link {
-  display: inline-block;
-  min-height: 44px;
-  color: #000;
+.book-card {
+  display: grid;
+  grid-template-columns: 5.5rem 1fr;
+  gap: 0.9rem;
+  align-items: start;
+  border: 1px solid var(--border);
+  border-radius: 14px;
+  background: var(--surface);
+  padding: 0.8rem;
+  color: inherit;
   text-decoration: none;
+  box-shadow: var(--shadow);
+}
+
+.book-card-cover,
+.book-detail-cover {
+  display: flex;
+  align-items: flex-start;
+  justify-content: center;
+}
+
+.book-cover,
+.book-cover-placeholder {
+  width: 100%;
+  max-width: 5.5rem;
+  aspect-ratio: 2 / 3;
+  border-radius: 10px;
+  border: 1px solid var(--border);
+  background: var(--surface-muted);
+  object-fit: cover;
+  overflow: hidden;
+}
+
+.book-cover-placeholder {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  color: var(--muted);
+  font-size: 0.85rem;
   font-weight: bold;
+  letter-spacing: 0.08em;
+}
+
+.book-cover-detail,
+.book-cover-placeholder-detail {
+  max-width: 12rem;
+}
+
+.book-card-body {
+  min-width: 0;
+}
+
+.book-title {
+  display: block;
+  font-size: 1.05rem;
+}
+
+.book-author,
+.book-author-detail {
+  display: block;
+  color: var(--muted);
+}
+
+.book-author {
+  margin-top: 0.2rem;
+  font-size: 0.95rem;
+}
+
+.book-author-detail {
+  margin: -0.35rem 0 1rem;
 }
 
 .format {
-  display: block;
-  margin-top: 0.2rem;
-  font-size: 0.95rem;
+  display: inline-block;
+  margin-top: 0.6rem;
+  padding: 0.15rem 0.5rem;
+  border: 1px solid var(--border);
+  border-radius: 999px;
+  font-size: 0.85rem;
+  text-transform: uppercase;
+  background: var(--surface-muted);
+}
+
+.book-detail {
+  display: grid;
+  gap: 1.25rem;
+}
+
+.book-detail-body {
+  min-width: 0;
+}
+
+.book-meta {
+  margin: 0 0 1.25rem;
+}
+
+.book-meta div {
+  margin-bottom: 0.8rem;
+}
+
+.book-meta dt {
+  font-weight: bold;
+}
+
+.book-meta dd {
+  margin: 0.2rem 0 0;
+  color: var(--muted);
+  word-break: break-word;
+}
+
+.back-link {
+  color: var(--muted);
+  text-decoration: none;
 }
 
 .btn {
   display: inline-block;
   min-height: 44px;
   padding: 0.7rem 1rem;
-  border: 2px solid #000;
+  border: 1px solid var(--text);
+  border-radius: 999px;
   text-decoration: none;
-  color: #000;
+  color: #fff;
+  background: var(--text);
   font-weight: bold;
 }
 
 code {
-  border: 1px solid #000;
+  border: 1px solid var(--border);
+  border-radius: 6px;
+  background: var(--surface);
   padding: 0.1rem 0.3rem;
 }
+
+@media (min-width: 700px) {
+  .book-detail {
+    grid-template-columns: 12rem 1fr;
+    align-items: start;
+  }
+}