feat: First iteration, multi themes, I18N

public/css/layout.css

@@ -0,0 +1,67 @@
+/* Page layout. Mobile first: one column, then 2 and 3 columns as space allows. */
+
+.topbar {
+  display: flex;
+  flex-wrap: wrap;
+  align-items: center;
+  justify-content: space-between;
+  gap: var(--gap);
+  padding: var(--gap) 1rem;
+  background: var(--surface);
+  border-bottom: 1px solid var(--border);
+}
+
+.topbar__title {
+  font-size: 1.25rem;
+}
+
+.topbar__controls {
+  display: flex;
+  flex-wrap: wrap;
+  align-items: flex-end;
+  gap: var(--gap);
+}
+
+.game {
+  display: grid;
+  gap: 1rem;
+  padding: 1rem;
+  max-width: 1400px;
+  margin: 0 auto;
+  grid-template-columns: minmax(0, 1fr);
+  grid-template-areas:
+    'stats'
+    'production'
+    'market'
+    'generators'
+    'upgrades';
+}
+
+.panel--stats { grid-area: stats; }
+.panel--production { grid-area: production; }
+.panel--market { grid-area: market; }
+.panel--generators { grid-area: generators; }
+.panel--upgrades { grid-area: upgrades; }
+
+/* Tablet */
+@media (min-width: 760px) {
+  .game {
+    grid-template-columns: repeat(2, minmax(0, 1fr));
+    grid-template-areas:
+      'stats stats'
+      'production market'
+      'generators upgrades';
+    align-items: start;
+  }
+}
+
+/* Desktop */
+@media (min-width: 1200px) {
+  .game {
+    grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr) minmax(0, 1.2fr);
+    grid-template-areas:
+      'stats stats stats'
+      'production generators upgrades'
+      'market generators upgrades';
+  }
+}