Keep panel titles inside their cards and scope the hover

Collapsed Recent Imagery (English) and Data Layers (Portuguese) pushed
their toggles out of the card. Collapsed rail launchers now drop the
divider and pack closer, translated collapsed titles use compact type,
and any title that still does not fit ends in an ellipsis.

The hover now matches the dock trays' hover rather than their pinned
look, only on pointers that can hover, and recolours only the hovered
panel's own header, so Radio and body labels keep their colours.

The cyber theme keeps main's gutters and Display toggle size, the dock
and rails share --dock-label-* tokens, and the dimmed open Context title
rule is gone.

src/contextTabKeyboard.test.mjs

@@ -172,10 +172,10 @@ test('Context reads as one segmented control with legible type and no halo', ()
   assert.ok(px(standby, 'font') >= 10, 'standby guidance must stay at least 10px');
   assert.doesNotMatch(standby, /dashed/);
   assert.ok(px(rule('.global-context-actions .panel-layer-toggle'), 'font-size') >= 10);
-  // Default theme only, expanded only: Cyber keeps its red titles and the
-  // collapsed launcher matches its sibling launchers.
-  assert.match(
+  // The shared rail title colour (brighter than --text-secondary) keeps the
+  // open Context title legible; no Context-only rule dims it again.
+  assert.equal(
     rule(":root:not([data-ui-theme='cyber']) #global-context-panel:not(.collapsed) .panel-title"),
-    /color:\s*var\(--text-secondary\)/,
+    '',
   );
 });

src/ui/railPanelChrome.test.mjs

@@ -0,0 +1,193 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+import { readStylesheet } from '../testSupport/readStylesheet.mjs';
+
+const css = readStylesheet(new URL('../../style.css', import.meta.url));
+const clean = (selector) =>
+  selector
+    .replace(/\/\*[\s\S]*?\*\//g, '')
+    .replace(/\s+/g, ' ')
+    .trim();
+const rules = [...css.matchAll(/([^{}]+)\{([^{}]*)\}/g)].map(
+  ([, selector, body]) => ({ selector: clean(selector), body }),
+);
+const railRules = rules.filter(({ selector }) =>
+  selector.includes('#left-panel-stack, #right-context-rail'),
+);
+const hoverBlock =
+  css.match(
+    /@media \(hover: hover\) and \(pointer: fine\) \{((?:[^{}]*\{[^{}]*\})*)\s*\}/g,
+  ) || [];
+
+test('a side panel lights up on hover only where a pointer can hover', () => {
+  const lit = railRules.filter(({ selector }) => selector.includes(':hover'));
+  assert.ok(lit.length > 0, 'the rail hover rule is missing');
+  for (const { selector } of lit) {
+    assert.ok(
+      hoverBlock.some((block) => clean(block).includes(selector)),
+      `${selector} must sit inside @media (hover: hover) and (pointer: fine)`,
+    );
+  }
+});
+
+test('hover matches the dock tray hover, not its pinned look', () => {
+  const [hover] = railRules.filter(({ selector }) =>
+    selector.endsWith(':hover'),
+  );
+  assert.ok(hover, 'the rail surface hover rule is missing');
+  assert.match(hover.body, /border-color:\s*var\(--glass-border-hover\)/);
+  assert.doesNotMatch(hover.body, /box-shadow/);
+  assert.match(hover.body, /--rail-label-hover:\s*var\(--accent\)/);
+  // A low-specificity list: no ID or state selector inside it lifts the rule.
+  assert.match(hover.selector, /:where\(/);
+});
+
+test('hover recolours only the hovered panel header, never nested sections', () => {
+  for (const { selector } of railRules) {
+    assert.ok(
+      !/\.radio-panel-inner/.test(selector),
+      `Radio sits inside Context and must not light up as its own panel: ${selector}`,
+    );
+    assert.doesNotMatch(
+      selector,
+      /:hover\s+:is\(/,
+      'a descendant colour list would reach labels in the panel body',
+    );
+  }
+  const colour = railRules.find(
+    ({ body }) => /--rail-label-hover/.test(body) && /color:/.test(body),
+  );
+  assert.ok(colour, 'the rail title colour rule is missing');
+  assert.match(colour.selector, /\.panel-header > \.panel-title/);
+  const radio = rules.find(({ selector }) => selector === '#radio-panel');
+  assert.match(radio?.body || '', /--rail-label-hover:\s*initial/);
+});
+
+test('no later rule dims the open Context title below its siblings', () => {
+  const dimmed = rules.filter(
+    ({ selector, body }) =>
+      /#global-context-panel:not\(\.collapsed\) \.panel-title$/.test(
+        selector,
+      ) && /color:/.test(body),
+  );
+  assert.deepEqual(dimmed, []);
+});
+
+test('collapsed launchers on both rails keep titles inside the card', () => {
+  const ellipsis = railRules.find(
+    ({ selector, body }) =>
+      selector.endsWith(
+        ':is(.panel-header > .panel-title, .pp-header-label)',
+      ) && /text-overflow:\s*ellipsis/.test(body),
+  );
+  assert.ok(
+    ellipsis,
+    'rail titles must end in an ellipsis rather than overflow',
+  );
+  assert.match(ellipsis.body, /min-width:\s*0/);
+
+  const translated = rules.find(
+    ({ selector }) =>
+      selector.startsWith("html:not([lang='en'])") &&
+      selector.includes('#left-panel-stack, #right-context-rail') &&
+      selector.includes('.panel-collapsible.collapsed'),
+  );
+  assert.ok(translated, 'translated collapsed titles must fit on both rails');
+  assert.match(translated.body, /font-size:\s*8px/);
+});
+
+test('the default theme geometry change leaves cyber gutters alone', () => {
+  for (const surface of ['.data-panel-inner', '.global-context-panel-inner']) {
+    const base = rules.find(
+      ({ selector, body }) => selector === surface && /padding:/.test(body),
+    );
+    assert.match(base?.body || '', /padding:\s*14px 16px 12px/, surface);
+  }
+  const display = rules.find(
+    ({ selector }) =>
+      selector === '#pp-toggles > .pp-header-row .pp-collapse-btn',
+  );
+  assert.match(display?.body || '', /font-size:\s*12px/);
+});
+
+test('rail titles and dock labels share one set of label tokens', () => {
+  // command-dock-trays.css sets the dock's label type; earlier dock rules
+  // for the same selector are overridden by it.
+  const dock = rules.find(
+    ({ selector, body }) =>
+      selector ===
+        '#command-dock .panel-title, #command-dock .location-toolbar-label' &&
+      /--dock-label-/.test(body),
+  );
+  const rail = railRules.find(({ body }) =>
+    /--dock-label-font-size/.test(body),
+  );
+  for (const body of [dock?.body, rail?.body]) {
+    assert.match(body || '', /font-size:\s*var\(--dock-label-font-size\)/);
+    assert.match(
+      body || '',
+      /letter-spacing:\s*var\(--dock-label-letter-spacing\)/,
+    );
+  }
+});
+
+test('default theme overrides never reach the cyber theme', () => {
+  const notCyber = ":root:not([data-ui-theme='cyber'])";
+  const padding = rules.find(
+    ({ selector, body }) =>
+      selector.endsWith(
+        ':is(.data-panel-inner, .global-context-panel-inner)',
+      ) && /padding-left:\s*14px/.test(body),
+  );
+  assert.ok(
+    padding?.selector.startsWith(notCyber),
+    'the 14px gutters must skip cyber',
+  );
+  const display = rules.find(
+    ({ selector, body }) =>
+      selector.endsWith('#pp-toggles > .pp-header-row .pp-collapse-btn') &&
+      /font-size:\s*13px/.test(body),
+  );
+  assert.ok(
+    display?.selector.startsWith(notCyber),
+    "Display's 22px toggle must skip cyber",
+  );
+  // Cyber draws its title marker at left: -8px; a clip on the title would cut it.
+  for (const { selector, body } of rules) {
+    if (!/\.panel-title/.test(selector) || !/overflow:\s*hidden/.test(body))
+      continue;
+    if (!/#left-panel-stack|#right-context-rail/.test(selector)) continue;
+    assert.ok(
+      selector.startsWith(notCyber),
+      `${selector} clips the cyber title marker`,
+    );
+  }
+});
+
+test('launcher compaction and header colour stay on the rail panels themselves', () => {
+  const compact = railRules.filter(({ selector }) =>
+    /\.collapsed > \[class\$='-panel-inner'\] > \.panel-header/.test(selector),
+  );
+  assert.equal(compact.length, 3);
+  for (const { selector } of compact) {
+    // Each launcher is a direct child of its rail: Radio, nested inside
+    // Context, is not a launcher. The header must not itself be required to
+    // be a rail child.
+    assert.match(
+      selector,
+      /#right-context-rail\) > \.panel-collapsible\.collapsed > \[class\$='-panel-inner'\] > \.panel-header/,
+    );
+    assert.match(
+      selector,
+      /#right-context-rail\) > #pp-toggles\.collapsed > \.pp-header-row/,
+    );
+  }
+  const colour = railRules.find(({ body }) =>
+    /--rail-label-hover, /.test(body),
+  );
+  assert.match(
+    colour.selector,
+    /:is\(\.panel-header, \.pp-header-row\) > \.panel-collapse-btn/,
+  );
+  assert.doesNotMatch(colour.selector, /, \.panel-collapse-btn\)/);
+});

src/ui/styles/command-dock-trays.css

@@ -17,10 +17,10 @@
   display: inline-flex;
   align-items: center;
   gap: 0.42rem;
-  color: rgba(206, 232, 239, 0.72);
-  font-size: 0.58rem;
-  font-weight: 500;
-  letter-spacing: 0.13rem;
+  color: var(--dock-label-color);
+  font-size: var(--dock-label-font-size);
+  font-weight: var(--dock-label-font-weight);
+  letter-spacing: var(--dock-label-letter-spacing);
 }
 
 #command-dock .dock-label-icon {

src/ui/styles/controls.css

@@ -86,28 +86,92 @@
 :is(#left-panel-stack, #right-context-rail)
   :is(.panel-header > .panel-title, .pp-header-label) {
   font-family: var(--font-mono);
-  font-size: 0.58rem;
-  font-weight: 500;
-  letter-spacing: 0.13rem;
+  font-size: var(--dock-label-font-size);
+  font-weight: var(--dock-label-font-weight);
+  letter-spacing: var(--dock-label-letter-spacing);
   text-transform: uppercase;
 }
 
+/* A hovered panel sets --rail-label-hover on itself (see below); its own
+   header picks it up. Radio sits inside Context and keeps its own colour. */
+:root:not([data-ui-theme='cyber'])
+  :is(#left-panel-stack, #right-context-rail)
+  :is(
+    .panel-header > .panel-title,
+    .pp-header-label,
+    :is(.panel-header, .pp-header-row) > .panel-collapse-btn
+  ) {
+  color: var(--rail-label-hover, var(--dock-label-color));
+}
+
+#radio-panel {
+  --rail-label-hover: initial;
+}
+
+/* A title never pushes its toggle out of the card: one that does not fit
+   ends in an ellipsis. Cyber draws a marker left of the title, which a clip
+   would cut, and keeps its own header layout. */
+:root:not([data-ui-theme='cyber'])
+  :is(#left-panel-stack, #right-context-rail)
+  :is(.panel-header > .panel-title, .pp-header-label) {
+  min-width: 0;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
+/* A collapsed launcher is 176px wide and its divider has no room to draw,
+   so the header drops it and packs closer. English titles such as Recent
+   Imagery then fit whole. Only the rail's own launchers: Radio, nested in
+   Context, keeps its divider. */
+:root:not([data-ui-theme='cyber'])
+  :is(#left-panel-stack, #right-context-rail)
+  > .panel-collapsible.collapsed
+  > [class$='-panel-inner']
+  > .panel-header,
+:root:not([data-ui-theme='cyber'])
+  :is(#left-panel-stack, #right-context-rail)
+  > #pp-toggles.collapsed
+  > .pp-header-row {
+  gap: 8px;
+}
+
 :root:not([data-ui-theme='cyber'])
   :is(#left-panel-stack, #right-context-rail)
-  :is(.panel-header > .panel-title, .pp-header-label, .panel-collapse-btn) {
-  color: rgba(206, 232, 239, 0.72);
+  > .panel-collapsible.collapsed
+  > [class$='-panel-inner']
+  > .panel-header
+  > .panel-divider,
+:root:not([data-ui-theme='cyber'])
+  :is(#left-panel-stack, #right-context-rail)
+  > #pp-toggles.collapsed
+  > .pp-header-row
+  > .panel-divider {
+  display: none;
 }
 
-/* A longer translated title in a collapsed rail launcher tightens its
-   tracking rather than pushing the disclosure button out of the card. */
+:root:not([data-ui-theme='cyber'])
+  :is(#left-panel-stack, #right-context-rail)
+  > .panel-collapsible.collapsed
+  > [class$='-panel-inner']
+  > .panel-header
+  > .panel-collapse-btn,
+:root:not([data-ui-theme='cyber'])
+  :is(#left-panel-stack, #right-context-rail)
+  > #pp-toggles.collapsed
+  > .pp-header-row
+  > .panel-collapse-btn {
+  margin-left: auto;
+}
+
+/* Translated titles run longer (Aktuelle Bilddaten), so a collapsed rail
+   launcher sets them in compact type rather than pushing the disclosure
+   button out of the card or cutting the word short. */
 html:not([lang='en'])
-  #right-context-rail
+  :is(#left-panel-stack, #right-context-rail)
   .panel-collapsible.collapsed
   .panel-title {
-  min-width: 0;
-  overflow: hidden;
-  text-overflow: ellipsis;
-  letter-spacing: 1.5px;
+  font-size: 8px;
+  letter-spacing: 1px;
 }
 
 .panel-divider {
@@ -141,64 +205,42 @@ html:not([lang='en'])
   background: rgba(255, 255, 255, 0.07);
 }
 
-/* A side panel answers the pointer as the command dock does: a blue edge,
-   a soft glow and an accent title. */
-:root:not([data-ui-theme='cyber'])
-  :is(#left-panel-stack, #right-context-rail)
-  :is(
-    .data-panel-inner,
-    .scene-panel-inner,
-    .cctv-panel-inner,
-    .radio-panel-inner,
-    .weather-panel-inner,
-    .recent-imagery-panel-inner,
-    .street-level-panel-inner,
-    .global-context-panel-inner,
-    #pp-toggles:not(.collapsed),
-    #pp-toggles.collapsed > .pp-header-row
-  ) {
-  transition:
-    border-color 160ms ease,
-    box-shadow 160ms ease;
-}
+/* A side panel answers the pointer as the command dock's trays do: a
+   brighter edge and an accent title and toggle. Touch screens have no hover,
+   so a tap must not leave a panel lit. */
+@media (hover: hover) and (pointer: fine) {
+  :root:not([data-ui-theme='cyber'])
+    :is(#left-panel-stack, #right-context-rail)
+    :where(
+      .data-panel-inner,
+      .scene-panel-inner,
+      .cctv-panel-inner,
+      .weather-panel-inner,
+      .recent-imagery-panel-inner,
+      .street-level-panel-inner,
+      .global-context-panel-inner,
+      #pp-toggles:not(.collapsed),
+      #pp-toggles.collapsed > .pp-header-row
+    ) {
+    transition: border-color var(--transition-fast);
+  }
 
-:root:not([data-ui-theme='cyber'])
-  :is(#left-panel-stack, #right-context-rail)
-  :is(
-    .data-panel-inner,
-    .scene-panel-inner,
-    .cctv-panel-inner,
-    .radio-panel-inner,
-    .weather-panel-inner,
-    .recent-imagery-panel-inner,
-    .street-level-panel-inner,
-    .global-context-panel-inner,
-    #pp-toggles:not(.collapsed),
-    #pp-toggles.collapsed > .pp-header-row
-  ):hover {
-  border-color: rgba(0, 212, 255, 0.55);
-  box-shadow:
-    0 8px 32px rgba(0, 0, 0, 0.5),
-    0 0 0 1px rgba(0, 212, 255, 0.08) inset,
-    0 0 1rem rgba(0, 212, 255, 0.12);
-}
-
-:root:not([data-ui-theme='cyber'])
-  :is(#left-panel-stack, #right-context-rail)
-  :is(
-    .data-panel-inner,
-    .scene-panel-inner,
-    .cctv-panel-inner,
-    .radio-panel-inner,
-    .weather-panel-inner,
-    .recent-imagery-panel-inner,
-    .street-level-panel-inner,
-    .global-context-panel-inner,
-    #pp-toggles:not(.collapsed),
-    #pp-toggles.collapsed > .pp-header-row
-  ):hover
-  :is(.panel-title, .pp-header-label, .panel-collapse-btn) {
-  color: var(--accent);
+  :root:not([data-ui-theme='cyber'])
+    :is(#left-panel-stack, #right-context-rail)
+    :where(
+      .data-panel-inner,
+      .scene-panel-inner,
+      .cctv-panel-inner,
+      .weather-panel-inner,
+      .recent-imagery-panel-inner,
+      .street-level-panel-inner,
+      .global-context-panel-inner,
+      #pp-toggles:not(.collapsed),
+      #pp-toggles.collapsed > .pp-header-row
+    ):hover {
+    --rail-label-hover: var(--accent);
+    border-color: var(--glass-border-hover);
+  }
 }
 
 /* ── Button Grid ──────────────────────────────── */
@@ -521,11 +563,21 @@ html:not([lang='en'])
 }
 
 #pp-toggles > .pp-header-row .pp-collapse-btn {
+  width: 20px;
+  height: 20px;
+  border-radius: 6px;
+  font-size: 12px;
+  padding: 0;
+}
+
+/* In the default theme Display's toggle matches the other panels' 22px. */
+:root:not([data-ui-theme='cyber'])
+  #pp-toggles
+  > .pp-header-row
+  .pp-collapse-btn {
   width: 22px;
   height: 22px;
-  border-radius: 6px;
   font-size: 13px;
-  padding: 0;
 }
 
 #pp-toggles.collapsed {

src/ui/styles/foundation.css

@@ -21,6 +21,11 @@
   --panel-radius: 16px;
   --btn-radius: 10px;
   --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
+  /* Label type shared by the command dock and the side panel titles. */
+  --dock-label-color: rgba(206, 232, 239, 0.72);
+  --dock-label-font-size: 0.58rem;
+  --dock-label-font-weight: 500;
+  --dock-label-letter-spacing: 0.13rem;
   --transition-smooth: 300ms cubic-bezier(0.4, 0, 0.2, 1);
   --left-stack-x: 52px;
   --right-rail-x: 52px;

src/ui/styles/layers.css

@@ -58,7 +58,7 @@
   background: var(--glass-bg);
   border: 1px solid var(--glass-border);
   border-radius: var(--panel-radius);
-  padding: 14px 14px 12px;
+  padding: 14px 16px 12px;
   backdrop-filter: blur(24px) saturate(1.4);
   -webkit-backdrop-filter: blur(24px) saturate(1.4);
   box-shadow:
@@ -253,8 +253,6 @@
 }
 #right-context-rail #global-context-panel.collapsed .panel-header {
   margin: 0;
-  /* Room for the radio button between the title and the toggle. */
-  gap: 8px;
 }
 #right-context-rail.layout-focus {
   height: var(--right-stack-max-height);
@@ -991,19 +989,12 @@
 #global-context-panel .panel-glow {
   display: none;
 }
-/* Expanded, its section titles (Context, Radio) stay legible over bright
-   imagery. Cyber keeps its own red titles; collapsed launchers match siblings. */
-:root:not([data-ui-theme='cyber'])
-  #global-context-panel:not(.collapsed)
-  .panel-title {
-  color: var(--text-secondary);
-}
 .global-context-panel-inner {
   position: relative;
   display: flex;
   min-height: 0;
   flex-direction: column;
-  padding: 14px 14px 12px;
+  padding: 14px 16px 12px;
   border: 1px solid var(--glass-border);
   border-radius: var(--panel-radius);
   background: var(--glass-bg);
@@ -1013,6 +1004,15 @@
   backdrop-filter: blur(24px) saturate(1.4);
   -webkit-backdrop-filter: blur(24px) saturate(1.4);
 }
+
+/* Data Layers and Context share the 14px side padding of the other default
+   theme panels, so every title and toggle sits 19px from its edge. Cyber
+   keeps its own gutters. */
+:root:not([data-ui-theme='cyber'])
+  :is(.data-panel-inner, .global-context-panel-inner) {
+  padding-right: 14px;
+  padding-left: 14px;
+}
 .global-context-actions {
   display: grid;
   grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);