Adding vibe mana curve

Chrono/Shared/Pages/DeckDetail.razor.css

@@ -59,7 +59,51 @@
 .deck-card-count {
     font-size: 0.85rem;
     color: var(--text-muted);
-    margin: 0;
+    margin: 0 0 1.5rem;
+}
+
+.mana-curve {
+    display: flex;
+    align-items: flex-end;
+    gap: 0.5rem;
+    height: 80px;
+    margin-top: 1rem;
+    padding: 0 0.5rem;
+}
+
+.mana-bar-container {
+    flex: 1;
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    height: 100%;
+    justify-content: flex-end;
+}
+
+.mana-bar-label {
+    font-size: 0.7rem;
+    color: var(--text-muted);
+    margin-bottom: 0.2rem;
+}
+
+.mana-bar {
+    width: 100%;
+    background: var(--accent);
+    border-radius: 4px 4px 0 0;
+    min-height: 4px;
+    transition: height 0.3s ease;
+}
+
+.mana-cost {
+    font-size: 0.75rem;
+    font-weight: 600;
+    color: var(--text-secondary);
+    margin-top: 0.4rem;
+    background: var(--bg-elevated);
+    width: 100%;
+    text-align: center;
+    border-radius: 4px;
+    padding: 0.1rem 0;
 }
 
 .deck-section {