Cleanup, layout fixes, better event colors.

calendar-main.css

@@ -0,0 +1,6 @@
+/* Calendar CSS - Main file with imports */
+@import url('colors.css');
+@import url('layout.css');
+@import url('cells.css');
+@import url('events.css');
+@import url('utilities.css');

calendar.js

@@ -113,7 +113,7 @@ class InfiniteCalendar {
     const handleWheel = e => {
       e.preventDefault()
       e.stopPropagation()
-      const currentYear = parseInt(this.weekLabel.textContent)
+      const currentYear = parseInt(this.yearLabel.textContent)
       const topDisplayIndex = Math.floor(this.viewport.scrollTop / this.rowHeight)
       const currentWeekIndex = topDisplayIndex + this.minVirtualWeek
       const sensitivity = 1/3
@@ -125,7 +125,7 @@ class InfiniteCalendar {
       this.navigateToYear(newYear, currentWeekIndex)
       setTimeout(() => throttled = false, 100)
     }
-    this.weekLabel.addEventListener('wheel', handleWheel, { passive: false })
+    this.yearLabel.addEventListener('wheel', handleWheel, { passive: false })
   }
 
   navigateTo(date) {
@@ -206,15 +206,15 @@ class InfiniteCalendar {
   }
 
   createHeader() {
-    this.weekLabel = document.createElement('div')
-    this.weekLabel.className = 'dow-label'
-    this.weekLabel.textContent = isoWeekInfo(new Date()).year
-    this.header.appendChild(this.weekLabel)
+    this.yearLabel = document.createElement('div')
+    this.yearLabel.className = 'year-label'
+    this.yearLabel.textContent = isoWeekInfo(new Date()).year
+    this.header.appendChild(this.yearLabel)
 
     const names = this.getLocalizedWeekdayNames()
     names.forEach((name, i) => {
       const c = document.createElement('div')
-      c.className = 'cell dow'
+      c.classList.add('dow')
       const dayIdx = (i + 1) % 7
       if (this.weekend[dayIdx]) c.classList.add('weekend')
       c.textContent = name
@@ -294,7 +294,7 @@ class InfiniteCalendar {
     const topVW = topDisplayIndex + this.minVirtualWeek
     const monday = this.getMondayForVirtualWeek(topVW)
     const { year } = isoWeekInfo(monday)
-    if (this.weekLabel.textContent !== String(year)) this.weekLabel.textContent = year
+    if (this.yearLabel.textContent !== String(year)) this.yearLabel.textContent = year
   }
 
   createWeekElement(virtualWeek) {
@@ -626,7 +626,7 @@ class InfiniteCalendar {
       title: eventData.title,
       startDate: eventData.startDate,
       endDate: eventData.endDate,
-      color: this.generateEventColor()
+      colorId: this.generateEventColorId()
     }
 
     const startDate = new Date(fromLocalString(event.startDate))
@@ -641,12 +641,9 @@ class InfiniteCalendar {
     this.refreshEvents()
   }
 
-  generateEventColor() {
-    const colors = [
-      '#ff6b6b', '#4ecdc4', '#45b7d1', '#96ceb4', '#feca57',
-      '#ff9ff3', '#54a0ff', '#5f27cd', '#00d2d3', '#ff9f43'
-    ]
-    return colors[Math.floor(Math.random() * colors.length)]
+  generateEventColorId() {
+    // Return a color ID from 0-11 for 12 evenly spaced hues
+    return Math.floor(Math.random() * 12)
   }
 
   refreshEvents() {
@@ -705,22 +702,9 @@ class InfiniteCalendar {
 
   createOverlaySpan(overlay, w) {
     const span = document.createElement('div')
-    span.className = 'event-span'
+    span.className = `event-span event-color-${w.colorId}`
     span.style.gridColumn = `${w.startIdx + 1} / ${w.endIdx + 2}`
     span.style.gridRow = `${w._row}`
-    span.style.height = '1.2em'
-    span.style.borderRadius = '.4em'
-    span.style.fontSize = '.75em'
-    span.style.lineHeight = '1.2'
-    span.style.padding = '0 .5em'
-    span.style.whiteSpace = 'nowrap'
-    span.style.overflow = 'hidden'
-    span.style.textOverflow = 'ellipsis'
-    span.style.background = w.color
-    span.style.color = 'white'
-    span.style.fontWeight = '600'
-    span.style.pointerEvents = 'auto'
-    span.style.zIndex = '1'
     span.textContent = w.title
     span.title = `${w.title} (${w.startDate === w.endDate ? w.startDate : w.startDate + ' - ' + w.endDate})`
     overlay.appendChild(span)

colors.css

@@ -1,10 +1,9 @@
 /* Color tokens */
 :root {
-  --bg: #f6f7fb;
   --panel: #fff;
   --today: #f83;
-  --ink: #111;
-  --ink-rgb: 17, 17, 17;
+  --ink: #222;
+  --inkstrong: #000;
   --muted: #888;
   --weekend: #888;
   --firstday: #000;
@@ -27,14 +26,26 @@
 .oct { background: hsl(18 78% 95%) }
 .nov { background: hsl(18 78% 88%) }
 
+.event-color-0 { background: hsl(0, 40%, 80%); }
+.event-color-1 { background: hsl(30, 40%, 80%); }
+.event-color-2 { background: hsl(60, 40%, 80%); }
+.event-color-3 { background: hsl(90, 40%, 80%); }
+.event-color-4 { background: hsl(120, 40%, 80%); }
+.event-color-5 { background: hsl(150, 40%, 80%); }
+.event-color-6 { background: hsl(180, 40%, 80%); }
+.event-color-7 { background: hsl(210, 40%, 80%); }
+.event-color-8 { background: hsl(240, 40%, 80%); }
+.event-color-9 { background: hsl(270, 40%, 80%); }
+.event-color-10 { background: hsl(300, 40%, 80%); }
+.event-color-11 { background: hsl(330, 40%, 80%); }
+
 /* Color tokens (dark) */
 @media (prefers-color-scheme: dark) {
   :root {
-    --bg: radial-gradient(1200px 800px at 20% -10%, #1c2130 0%, #0c0f16 35%, #0a0b11 100%);
     --panel: #111318;
     --today: #f83;
     --ink: #ddd;
-    --ink-rgb: 221, 221, 221;
+    --inkstrong: #fff;
     --muted: #888;
     --weekend: #999;
     --firstday: #fff;
@@ -56,15 +67,29 @@
   .sep { background: hsl(18 70% 18%) }
   .oct { background: hsl(18 70% 26%) }
   .nov { background: hsl(18 70% 18%) }
+
+  .event-color-0 { background: hsl(0, 40%, 50%); }
+  .event-color-1 { background: hsl(30, 40%, 50%); }
+  .event-color-2 { background: hsl(60, 40%, 50%); }
+  .event-color-3 { background: hsl(90, 40%, 50%); }
+  .event-color-4 { background: hsl(120, 40%, 50%); }
+  .event-color-5 { background: hsl(150, 40%, 50%); }
+  .event-color-6 { background: hsl(180, 40%, 50%); }
+  .event-color-7 { background: hsl(210, 40%, 50%); }
+  .event-color-8 { background: hsl(240, 40%, 50%); }
+  .event-color-9 { background: hsl(270, 40%, 50%); }
+  .event-color-10 { background: hsl(300, 40%, 50%); }
+  .event-color-11 { background: hsl(330, 40%, 50%); }
+
 }
 
 /* Selection styles */
 .weekend { color: var(--weekend) }
-.firstday { color: var(--firstday); text-shadow: 0 0 .1em rgba(var(--ink-rgb), .5) }
+.firstday { color: var(--firstday); text-shadow: 0 0 .1em; }
 
 .selected {
   background: var(--select);
-  border: 2px solid rgba(var(--ink-rgb), .3);
+  border: 2px solid var(--ink);
   box-shadow: inset 0 0 0 1px rgba(255,255,255,.3);
 }
 .selected .event { opacity: .7 }

events.css

@@ -4,9 +4,8 @@
   padding: .1em .3em;
   margin: .1em 0;
   border-radius: .2em;
-  color: white;
   font-weight: 500;
-  white-space: nowrap;
+  white-space: normal;
   overflow: hidden;
   text-overflow: ellipsis;
   width: 100%;
@@ -15,14 +14,13 @@
   cursor: pointer;
   z-index: 5;
 }
-.event:hover { opacity: .8 }
 
 /* Spanning events in the overlay (grid-positioned, not absolutely measured) */
 .event-span {
   font-size: .75em;
   padding: 0 .5em;
   border-radius: .4em;
-  color: white;
+  color: var(--inkstrong);
   font-weight: 600;
   white-space: nowrap;
   overflow: hidden;

layout.css

@@ -51,13 +51,11 @@ header {
 .calendar-header, #calendar-header {
   display: grid;
   grid-template-columns: var(--label-w) repeat(7, var(--cell-w)) var(--overlay-w);
-  border-bottom: .1em solid var(--muted);
+  border-bottom: .2em solid var(--muted);
   align-items: last baseline;
   flex-shrink: 0;
   width: 100%;
 }
-.calendar-header .dow-label { display:grid; place-items:center; height: var(--cell-h); color: var(--muted) }
-.overlay-header-spacer { grid-column: -2 / -1 }
 
 /* Main container */
 .calendar-container, #calendar-container {
@@ -108,16 +106,18 @@ header {
 }
 
 /* Label cells */
-.dow-label, .week-label {
+.year-label, .week-label {
   display: grid;
   place-items: center;
   width: 100%;
-  height: var(--cell-h);
   color: var(--muted);
   cursor: ns-resize;
   font-size: 1.2em;
 }
 
+.week-label {
+  height: var(--cell-h);
+}
 /* 7-day grid inside each week row */
 .week-row > .days-grid {
   grid-column: 2 / span 7;