Fix: re-organized dialog and notification z-indices

- Notifications and toasts now appear higher than dialogs when appearing together
- Standardized dialog z-index
- Added documentation for z-index guide

doc/z-index-guide.md

@@ -0,0 +1,69 @@
+# Z-Index Guide — TimeSafari
+
+**Author**: Development Team  
+**Date**: 2025-08-25T19:38:09-08:00  
+**Status**: 🎯 **ACTIVE** - Z-index layering standards
+
+## Objective
+Establish consistent z-index values across the TimeSafari application to ensure proper layering of UI elements.
+
+## Result
+This document defines the z-index hierarchy for all UI components.
+
+## Use/Run
+Reference these values when implementing new components or modifying existing ones to maintain consistent layering.
+
+## Z-Index Hierarchy
+
+| Component | Z-Index | Usage |
+|-----------|---------|-------|
+| **Map** | `40` | Base map layer and map-related overlays |
+| **QuickNav** | `50` | Quick navigation bottom bar |
+| **Dialogs and Modals** | `100` | Modal dialogs, popups, and overlay content |
+| **Notifications and Toasts** | `120` | System notifications, alerts, and toast messages |
+
+## Best Practices
+
+1. **Never exceed 120** - Keep the highest z-index reserved for critical notifications
+2. **Use increments of 10** - Leave room for future additions between layers
+3. **Document exceptions** - If you need a z-index outside this range, document the reason
+4. **Test layering** - Verify z-index behavior across different screen sizes and devices
+
+## Common Pitfalls
+
+- **Avoid arbitrary values** - Don't use random z-index numbers
+- **Don't nest high z-index** - Keep child elements within their parent's z-index range
+- **Consider stacking context** - Remember that `position: relative` creates new stacking contexts
+
+## Next Steps
+
+| Owner | Task | Exit Criteria | Target Date |
+|-------|------|---------------|-------------|
+| Dev Team | Apply z-index classes to existing components | All components use defined z-index values | 2025-09-01 |
+
+## Competence Hooks
+
+- **Why this works**: Creates predictable layering hierarchy that prevents UI conflicts
+- **Common pitfalls**: Using arbitrary z-index values or exceeding the defined range
+- **Next skill unlock**: Learn about CSS stacking contexts and their impact on z-index
+- **Teach-back**: Explain the z-index hierarchy to a team member without referencing this guide
+
+## Collaboration Hooks
+
+- **Reviewers**: Frontend team, UI/UX designers
+- **Sign-off checklist**: 
+  - [ ] All new components follow z-index guidelines
+  - [ ] Existing components updated to use defined values
+  - [ ] Cross-browser testing completed
+  - [ ] Mobile responsiveness verified
+
+## Assumptions & Limits
+
+- Assumes modern browser support for z-index
+- Limited to 4 defined layers (expandable if needed)
+- Requires team discipline to maintain consistency
+
+## References
+
+- [MDN Z-Index Documentation](https://developer.mozilla.org/en-US/docs/Web/CSS/z-index)
+- [CSS Stacking Context Guide](https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Positioning/Understanding_z_index/The_stacking_context)

src/App.vue

@@ -4,7 +4,7 @@
   <!-- Messages in the upper-right - https://github.com/emmanuelsw/notiwind -->
   <NotificationGroup group="alert">
     <div
-      class="fixed z-[90] top-[max(1rem,env(safe-area-inset-top))] right-4 left-4 sm:left-auto sm:w-full sm:max-w-sm flex flex-col items-start justify-end"
+      class="fixed z-[120] top-[max(1rem,env(safe-area-inset-top))] right-4 left-4 sm:left-auto sm:w-full sm:max-w-sm flex flex-col items-start justify-end"
     >
       <Notification
         v-slot="{ notifications, close }"

src/assets/styles/tailwind.css

@@ -16,7 +16,7 @@
 	}
 
 	.dialog-overlay {
-		@apply z-50 fixed inset-0 bg-black/50 flex justify-center items-center p-6;
+		@apply z-[100] fixed inset-0 bg-black/50 flex justify-center items-center p-6;
 	}
 
 	.dialog {

src/components/FeedFilters.vue

@@ -213,7 +213,6 @@ export default class FeedFilters extends Vue {
 
 <style>
 #dialogFeedFilters.dialog-overlay {
-  z-index: 100;
   overflow: scroll;
 }
 </style>

src/components/HiddenDidDialog.vue

@@ -1,9 +1,6 @@
 <template>
-  <div
-    v-if="isOpen"
-    class="fixed inset-0 bg-black bg-opacity-50 flex items-center justify-center z-50"
-  >
-    <div class="bg-white rounded-lg p-6 max-w-2xl w-full mx-4">
+  <div v-if="isOpen" class="dialog-overlay">
+    <div class="dialog">
       <!-- Header -->
       <div class="flex justify-between items-center mb-4">
         <h2 class="text-xl font-bold capitalize">{{ roleName }} Details</h2>

src/components/ImageMethodDialog.vue

@@ -1,5 +1,5 @@
 <template>
-  <div v-if="visible" class="dialog-overlay z-[60]">
+  <div v-if="visible" class="dialog-overlay">
     <div class="dialog relative">
       <div class="text-lg text-center font-bold relative">
         <h1 id="ViewHeading" class="text-center font-bold">

src/components/PhotoDialog.vue

@@ -10,7 +10,7 @@ Comprehensive error handling * * @author Matthew Raymer * @version 1.0.0 * @file
 PhotoDialog.vue */
 
 <template>
-  <div v-if="visible" class="dialog-overlay z-[60]">
+  <div v-if="visible" class="dialog-overlay>
     <div class="dialog relative">
       <div class="text-lg text-center font-light relative z-50">
         <div id="ViewHeading" :class="headingClasses">