feat: add Inter font, extract useStoryGeneration hook, fix mobile menu

src/pages/CreateStoryPage.css

@@ -902,12 +902,51 @@
   .temp-label {
     font-size: 0.9rem;
   }
+
+  /* Character card mobile */
+  .character-content {
+    flex-direction: column;
+    align-items: center;
+  }
+
+  .character-avatar-section {
+    width: 100%;
+    flex-direction: row;
+    justify-content: center;
+    gap: 1rem;
+  }
+
+  .character-avatar-preview,
+  .character-avatar-placeholder {
+    width: 80px;
+    height: 120px;
+  }
+
+  .character-fields {
+    width: 100%;
+  }
+
+  .character-row {
+    grid-template-columns: 1fr;
+  }
+
+  .character-row select {
+    width: 100%;
+  }
+
+  .character-buttons {
+    flex-direction: column;
+  }
+
+  .add-btn {
+    width: 100%;
+  }
 }
 
-/* Character row with two selects */
+/* Character row with three selects */
 .character-row {
   display: grid;
-  grid-template-columns: 1fr 1fr;
+  grid-template-columns: 1fr 1fr 1fr;
   gap: 0.5rem;
 }
 
@@ -1024,3 +1063,49 @@
   font-size: 0.8rem;
   color: #888;
 }
+
+/* Plot generation button */
+.plot-header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 1rem;
+  flex-wrap: wrap;
+}
+
+.btn-generate-plot {
+  padding: 0.5rem 1rem;
+  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+  border: none;
+  border-radius: 8px;
+  color: white;
+  font-size: 0.85rem;
+  font-weight: 500;
+  cursor: pointer;
+  transition: all 0.2s;
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+}
+
+.btn-generate-plot:hover:not(:disabled) {
+  transform: translateY(-1px);
+  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
+}
+
+.btn-generate-plot:disabled {
+  opacity: 0.6;
+  cursor: wait;
+}
+
+@media (max-width: 600px) {
+  .plot-header {
+    flex-direction: column;
+    align-items: stretch;
+  }
+
+  .btn-generate-plot {
+    width: 100%;
+    justify-content: center;
+  }
+}