Better fix on mobile tooltips

bicorder-app/src/components/Tooltip.svelte

@@ -1,4 +1,6 @@
 <script lang="ts">
+  import { tick } from 'svelte';
+
   export let text: string;
 
   let showTooltip = false;
@@ -8,12 +10,13 @@
   let wrapperElement: HTMLSpanElement;
   let tooltipPosition = { align: 'center', vertical: 'top' };
 
-  function handleTouchStart() {
+  async function handleTouchStart() {
     isLongPress = false;
-    touchTimer = window.setTimeout(() => {
+    touchTimer = window.setTimeout(async () => {
       showTooltip = true;
       isLongPress = true;
-      updateTooltipPosition();
+      await tick();
+      await updateTooltipPosition();
     }, 500); // Show after 500ms press
   }
 
@@ -27,13 +30,14 @@
     }
   }
 
-  function handleClick() {
+  async function handleClick() {
     // Toggle tooltip on click/tap
     if (!isLongPress) {
       showTooltip = !showTooltip;
       // Auto-hide after 3 seconds
       if (showTooltip) {
-        updateTooltipPosition();
+        await tick();
+        await updateTooltipPosition();
         setTimeout(() => {
           showTooltip = false;
         }, 3000);
@@ -42,34 +46,48 @@
     isLongPress = false;
   }
 
-  function handleMouseEnter() {
+  async function handleMouseEnter() {
     showTooltip = true;
-    // Use requestAnimationFrame to ensure DOM is updated before positioning
-    requestAnimationFrame(() => updateTooltipPosition());
+    await tick();
+    await updateTooltipPosition();
   }
 
   function handleMouseLeave() {
     showTooltip = false;
   }
 
-  function updateTooltipPosition() {
+  async function updateTooltipPosition() {
+    // Wait for next frame to ensure rendering is complete
+    await new Promise(resolve => requestAnimationFrame(resolve));
+
     if (!tooltipElement || !wrapperElement) return;
 
-    const tooltipRect = tooltipElement.getBoundingClientRect();
     const wrapperRect = wrapperElement.getBoundingClientRect();
+    const tooltipRect = tooltipElement.getBoundingClientRect();
     const viewportWidth = window.innerWidth;
     const viewportHeight = window.innerHeight;
-    const padding = 10; // Minimum padding from screen edge
+    const padding = 10;
 
-    // Check horizontal overflow
+    // Calculate tooltip width and position
+    const tooltipWidth = tooltipRect.width;
+    const wrapperCenterX = wrapperRect.left + wrapperRect.width / 2;
+
+    // Determine horizontal alignment
     let align = 'center';
-    if (tooltipRect.left < padding) {
+
+    // Check if center alignment would overflow
+    const centerLeft = wrapperCenterX - tooltipWidth / 2;
+    const centerRight = wrapperCenterX + tooltipWidth / 2;
+
+    if (centerLeft < padding) {
+      // Would overflow left, align to left edge of wrapper
       align = 'left';
-    } else if (tooltipRect.right > viewportWidth - padding) {
+    } else if (centerRight > viewportWidth - padding) {
+      // Would overflow right, align to right edge of wrapper
       align = 'right';
     }
 
-    // Check vertical overflow (if tooltip would go above viewport)
+    // Check vertical overflow
     let vertical = 'top';
     if (tooltipRect.top < padding) {
       vertical = 'bottom';
@@ -128,11 +146,13 @@
     padding: 0.5rem;
     z-index: 1000;
     width: max-content;
-    max-width: 300px;
+    max-width: min(300px, calc(100vw - 20px));
     font-size: 0.85rem;
     line-height: 1.4;
     text-align: center;
     box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
+    word-wrap: break-word;
+    white-space: normal;
   }
 
   /* Horizontal alignment variants */
@@ -143,6 +163,7 @@
 
   .tooltip-text.align-left {
     left: 0;
+    right: auto;
     transform: none;
   }
 
@@ -218,7 +239,6 @@
 
   @media (max-width: 768px) {
     .tooltip-text {
-      max-width: calc(100vw - 20px);
       font-size: 0.8rem;
     }
   }