Add vertical eonstrip detail view

style.css

@@ -368,6 +368,65 @@
   will-change: transform;
 }
 
+.detail-view {
+  margin-top: 20px;
+  background: rgba(255, 255, 255, 0.05);
+  border-radius: 10px;
+  padding: 20px;
+}
+
+.detail-header {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  margin-bottom: 10px;
+}
+
+.back-btn {
+  background: linear-gradient(45deg, #00ffff, #0080ff);
+  border: none;
+  border-radius: 5px;
+  color: #fff;
+  padding: 6px 12px;
+  cursor: pointer;
+  font-size: 0.9em;
+}
+
+.detail-timeline {
+  position: relative;
+  height: 400px;
+  border-left: 2px solid #00ffff;
+  margin-left: 40px;
+}
+
+.timeline-block {
+  position: absolute;
+  left: -40px;
+  width: calc(100% + 40px);
+  border-top: 1px dashed rgba(255,255,255,0.2);
+  color: #aaa;
+  font-size: 0.8em;
+  padding-top: 2px;
+}
+
+.event-box, .event-line {
+  position: absolute;
+  left: 0;
+  background: rgba(255,0,255,0.3);
+  border: 1px solid rgba(0,255,255,0.5);
+  border-radius: 4px;
+  padding: 2px 4px;
+  color: #fff;
+  font-size: 0.7em;
+  overflow: hidden;
+  white-space: nowrap;
+}
+
+.event-line {
+  height: 2px;
+  padding: 0;
+}
+
 /* Layout combining current time and analog clock */
 .time-display {
   --clock-size: 40vmin;