Analytics layout: larger charts with natural-width cap, one-line totals

- Charts grow to a larger intrinsic size (1052x174) and never upscale
  past it; centered with equal side margins above the cap, full width
  below, svg always within page bounds; overflow visible so wider fonts
  don't clip at the viewBox edge
- Totals row aligns its left edge with the charts and shrinks (gap first,
  then font) via container units to always stay on one line

frontend/src/AnalyticsView.vue

@@ -26,6 +26,11 @@ import TrailLink from './TrailLink.vue'
 import VisitorCell from './VisitorCell.vue'
 import TransitionGraph from './TransitionGraph.vue'
 import VisitorCharts from './VisitorCharts.vue'
+import { VIEW_W } from './analytics/chart.js'
+
+// Same centering margin as the charts, so the totals row's left edge
+// aligns with the chart svg above the natural width.
+const CHART_MARGIN = `max(0px, calc(50% - ${VIEW_W / 2}px))`
 
 const ABUSE_MAX_LINES = 5
 
@@ -148,7 +153,7 @@ const abuseRows = computed(() => formatAbuseRows(rangeData.value?.abuse || [], c
       <p v-if="error" class="error">⚠️ {{ error }}</p>
       <p v-else-if="!data" class="loading">loading…</p>
       <template v-else>
-        <section class="totals">
+        <section class="totals" :style="{ marginLeft: CHART_MARGIN }">
           <div><strong :title="String(visits.length)">{{ formatCount(visits.length) }}</strong> visits</div>
           <div><strong :title="String(totalViews)">{{ formatCount(totalViews) }}</strong> page views</div>
           <div><strong>{{ readStats.avgMinPerVisit }}</strong> min/visit</div>
@@ -288,6 +293,8 @@ const abuseRows = computed(() => formatAbuseRows(rangeData.value?.abuse || [], c
   width: 100%;
   /* Same 1.25rem side spacing as main's article padding. */
   padding: 1.5rem 1.25rem 4rem;
+  /* Container for cqw-based shrink-to-fit (see .totals). */
+  container-type: inline-size;
 }
 
 .analytics-panel header {
@@ -354,12 +361,15 @@ const abuseRows = computed(() => formatAbuseRows(rangeData.value?.abuse || [], c
 .analytics-view :deep(.muted) { color: var(--muted); }
 .analytics-view :deep(.small) { font-size: 0.75em; }
 
+/* One line at any width: the gap shrinks first, then the font (the number
+   scales along in em), both following the panel's container width. */
 .totals {
   display: flex;
-  gap: 2rem;
-  font-size: 1.1rem;
+  gap: clamp(0.5rem, 3cqw, 2rem);
+  font-size: clamp(0.6rem, 2.2cqw, 1.1rem);
+  white-space: nowrap;
 }
-.totals strong { font-size: 1.5rem; }
+.totals strong { font-size: 1.36em; }
 
 .visit-table-wrap {
   overflow-x: auto;

frontend/src/VisitorCharts.vue

@@ -16,6 +16,11 @@ import {
 
 const DAY_REFRESH_MS = 15000
 
+// Keep the whole svg within page bounds: full width below the natural
+// size, centered with equal side margins above it (max() clamps the
+// centering margin to 0 at the breakpoint, so the rule is continuous).
+const CHART_MARGIN = `max(0px, calc(50% - ${VIEW_W / 2}px))`
+
 const props = defineProps({
   data: { type: Object, default: null },
   range: { type: String, required: true },
@@ -68,6 +73,7 @@ const viewChart = computed(() => buildChart(viewSeries.value, now.value))
     ]" :key="c.ylabel">
     <template v-if="c.chart">
       <svg class="chart" :viewBox="`${-MARGIN_L} 0 ${VIEW_W} ${VIEW_H}`"
+           :style="{ maxWidth: `${VIEW_W}px`, marginLeft: CHART_MARGIN }"
            role="img" :aria-label="axisLabel(c.chart.unit, c.ylabel)">
         <line v-for="g in c.chart.majors.slice(1)" :key="'j' + g.value"
               :x1="0" :x2="CHART_W" :y1="g.y" :y2="g.y" class="major" />
@@ -116,11 +122,18 @@ const viewChart = computed(() => buildChart(viewSeries.value, now.value))
 
 <style scoped>
 /* Each chart is a self-contained SVG: the viewBox includes the axis label
-   margins, so nothing is positioned with HTML overlays. */
+   margins, so nothing is positioned with HTML overlays. Never upscale past
+   the natural size (1 viewBox unit = 1 px, max-width set inline) — that
+   would blow up the constant-size text; smaller panels still scale the
+   chart down to fit. The margin-left (set inline) centers the chart above
+   its natural width; the svg always stays within page bounds.
+   overflow: visible lets wider fonts extend past the viewBox instead of
+   clipping. */
 .chart {
   display: block;
   width: 100%;
   height: auto;
+  overflow: visible;
 }
 
 .chart .ylab,

frontend/src/analytics/chart.js

@@ -9,8 +9,8 @@
 import { DAY, HOUR, MIN5, WEEK, mondayUTC } from './time.js'
 import { formatCount } from './format.js'
 
-export const CHART_W = 720
-export const CHART_H = 126
+export const CHART_W = 1000
+export const CHART_H = 150
 export const PAD_TOP = 14 // room above the highest point
 export const MARGIN_L = 40 // y tick labels + vertical axis label
 export const MARGIN_B = 24 // x tick labels