diff --git a/app/renderer/components/StackedBars.tsx b/app/renderer/components/StackedBars.tsx
index 64501ee..6fec154 100644
--- a/app/renderer/components/StackedBars.tsx
+++ b/app/renderer/components/StackedBars.tsx
@@ -16,12 +16,12 @@ export function StackedBars({ daily }: { daily: DailyHistoryEntry[] }) {
   const legendSeries = (['opus', 'sonnet', 'haiku', 'gpt', 'other'] as const).filter(series => presentSeries.has(series))
 
   return (
-    <>
+    <div className="sbars-wrap">
       <div className="sbars" aria-label="Daily spend by model">
         {daily.map(day => (
           <div className="c" key={day.date} data-date={day.date} title={`${day.date} · ${formatUsd(day.cost)}`}>
             {day.topModels.map(model => {
-              const pct = Math.max(2, (Math.max(0, model.cost) / maxTotal) * 100)
+              const pct = Math.max(1, (Math.max(0, model.cost) / maxTotal) * 100)
               return (
                 <span
                   key={`${day.date}-${model.name}`}
@@ -42,6 +42,6 @@ export function StackedBars({ daily }: { daily: DailyHistoryEntry[] }) {
           </span>
         ))}
       </div>
-    </>
+    </div>
   )
 }
diff --git a/app/renderer/sections/Spend.tsx b/app/renderer/sections/Spend.tsx
index cad5fec..943b478 100644
--- a/app/renderer/sections/Spend.tsx
+++ b/app/renderer/sections/Spend.tsx
@@ -93,7 +93,7 @@ function ProjectsLens({
   return (
     <>
       <div style={{ display: 'grid', gridTemplateColumns: '1fr 1fr', gap: 10 }}>
-        <Panel title="Daily spend by model">
+        <Panel title="Daily spend by model" className="spend-chart-panel">
           {daily.length ? <StackedBars daily={daily} /> : <EmptyNote>No model spend in this range yet.</EmptyNote>}
         </Panel>
         <Panel title="By project" right={projects.length ? `top ${projects.length}` : undefined}>
diff --git a/app/renderer/styles/indigo.css b/app/renderer/styles/indigo.css
index 859c91d..110bc3b 100644
--- a/app/renderer/styles/indigo.css
+++ b/app/renderer/styles/indigo.css
@@ -114,9 +114,15 @@ h2 { font-size: 20px; font-weight: 650; letter-spacing: -.015em; margin: 0 0 6px
 .days span { font-size: 9.5px; color: var(--t3); font-family: var(--mono); }
 
 /* stacked multi-series bars */
-.sbars { display: flex; align-items: flex-end; gap: 3px; height: 96px; padding: 0 4px; }
+.spend-chart-panel { display: flex; flex-direction: column; }
+.spend-chart-panel .pbody { display: flex; flex: 1; min-height: 0; flex-direction: column; }
+.sbars-wrap { display: flex; flex: 1; min-height: 0; flex-direction: column; height: 100%; }
+.sbars { display: flex; flex: 1; align-items: flex-end; gap: 3px; min-height: 120px; padding: 0 4px; }
 .sbars .c { flex: 1; display: flex; flex-direction: column-reverse; height: 100%; justify-content: flex-start; align-items: center; gap: 1.5px; }
-.sbars .s { width: 100%; max-width: 11px; border-radius: 2px; }
+.sbars .s { width: 100%; max-width: 11px; border-radius: 0; }
+.sbars .s:first-child { border-radius: 0 0 2px 2px; }
+.sbars .s:last-child { border-radius: 2px 2px 0 0; }
+.sbars .s:only-child { border-radius: 2px; }
 .s-opus { background: var(--blue); }
 .s-son { background: var(--purple); }
 .s-hai { background: var(--lav); }