Chore: Event schedule update 20260623 (#10407)

Author: rmackinnon

website/static/events/zurich-summit-2026/index.html

@@ -119,6 +119,7 @@ <h3 class="title-gl f48 u-mb56">Agenda</h3>
                         <h4 class="title-gl f32 f24--tablet u-mb48">
                             Have A Topic Idea?
                         </h4>
+                        Talk sessions are beginning to fill up. If you have an idea for a session, send it in. All levels and topics on GIS, analytics, microbiology, automated transportation, graphing, computation, and more are all welcomed!<br>
                         <a href="https://github.com/openjs-foundation/summit/issues/new?assignees=chrisgervang&labels=Z%C3%BCrich+2026%2C+Collaborator+Summit%2C+Session+Proposal&projects=&template=openviz-summit-topic-proposal.md&title=Open+Visualization+Session+Proposal%3A+%3CProject+Name%3E+%3CSession+Title%3E" class="u-mt24 u-mb48--tablet button-gl">SUBMIT SESSION PROPOSAL</a>
                     </div>
                     <div class="days-agenda" id="day-1">

website/static/events/zurich-summit-2026/style.css

@@ -2711,41 +2711,47 @@ header {
     margin: 1em 5% 5% 0;
 }
 
-.header_ribbon {
-    display: flex;
-    position: fixed;
-    top: 0px;
-    z-index: 999;
-    height: fit-content;
-    width: 100%;
-    color: white;
-    font-family: UberMove, Helvetica, Arial, sans-serif;
-    height: 3vh;
-    width: 100%;
-    padding: 0.4vh 0.4vh 0.4vh 0.4vh;
-    background-color: rgba(0,0,0, 0.8);
-    align-content: center;
+
+.header_bg_img {
+    object-fit: cover;
+    background-image: url(https://raw.githubusercontent.com/visgl/deck.gl-data/master/events/zurich-summit-2026/header_bg_orig.jpg);
+    background-repeat: no-repeat;
+    background-size: cover;
 }
-.header_ribbon img {
-    width: 32px;
-    height: 32px;
+
+@media (max-width:800px) {
+    .header > .container {
+        margin-top: 12px;
+    }
+    .header_bg_img {
+        background-image: url(https://raw.githubusercontent.com/visgl/deck.gl-data/master/events/zurich-summit-2026/header_bg_800.jpg);
+    }
 }
-.header_ribbon a {
-    color: white;
-    font-weight: normal;
-    cursor: pointer;
-    text-decoration: none !important;
+
+@media (max-width:1200px) {
+    .header > .container {
+        margin-top: 24px;
+    }
+    .header_bg_img {
+        background-image: url(https://raw.githubusercontent.com/visgl/deck.gl-data/master/events/zurich-summit-2026/header_bg_1200.jpg);
+    }
 }
-.header_text {
-    padding-left: 1vh;
-    height:100%;
-    width: 100%;
-    vertical-align: middle;
-    align-content: center;
-    font-size: 1em;
-    font-weight: 400;
+
+@media (max-width:2400px) {
+    .header > .container {
+        margin-top: 80px;
+    }
+    .header_bg_img {
+        background-image: url(https://raw.githubusercontent.com/visgl/deck.gl-data/master/events/zurich-summit-2026/header_bg_2400.jpg);
+    }
 }
 
+/*@media (max-width:3134px) {
+    .header_bg_img {
+        background-image: url(https://raw.githubusercontent.com/visgl/deck.gl-data/master/events/zurich-summit-2026/header_bg_orig.jpg);
+    }
+}*/
+
 h1 {
     font-size: 4em;
     line-height: 1.2;