Added 2026 team and Open Day 2026 page (#34)

Author: VidhiC324

_config.yml

@@ -70,6 +70,8 @@ collections:
   events:
     output: true
     # permalink: /events/:title/
+  open_day:
+    output: true
 
 defaults:
   - scope:

_data/team/2026.yml

@@ -0,0 +1,43 @@
+year: 2026
+convenors:
+  - name: "Avik Das"
+    bio:
+    email: avikdas@iisc.ac.in
+    picture: "/assets/img/team/2026/avik.webp"
+
+  - name: "Sameer Rajput"
+    bio:
+    email: sameerr@iisc.ac.in
+    picture: "/assets/img/team/2026/sameer.webp"
+
+  - name: "Vidhi Chauhan"
+    bio:
+    email: vidhic@iisc.ac.in
+    picture: "/assets/img/team/2026/vidhi.webp"
+
+  - name: "Vinay Kaushik"
+    bio:
+    email: vinaykaushik@iisc.ac.in
+    picture: "/assets/img/team/2026/vinay.webp"
+
+volunteer-team-name: "Core Team"
+
+volunteers:
+
+  - name: "Dhritishman Dutta"
+    email: dhritishmand@iisc.ac.in
+    picture: "/assets/img/team/2026/dutta.webp"
+
+  - name: "Kaustav Prakash Sarma"
+    email: kaustavs@iisc.ac.in
+    picture: "/assets/img/team/2026/kausty.webp"
+
+  - name: "Ritabrata Saha"
+    email: ritabratas@iisc.ac.in
+    picture: "/assets/img/team/2026/rito.webp"
+
+
+
+  # - name: "Volunteer 1"
+  #   email: volunteer1@example.com
+    # picture: 

_events/2026-02-16-mock-thesis-presentation.md

@@ -0,0 +1,28 @@
+---
+layout: page
+title: Open Day 2025
+permalink: /open-day-2025/
+year: 2025
+image: /assets/img/open_day/2025/gallery/team.webp   
+order: 7
+---
+
+<section>
+    <h2 class="section-title">Posters</h2>
+    <div class="image-board">
+        {% assign open_day_posters = site.static_files | where_exp: "file", "file.path contains '/assets/img/open_day/2025/posters/'" %}
+        {% for poster in open_day_posters %}
+          <img src="{{ poster.path }}" alt="{{ poster.name }}">
+        {% endfor %}
+    </div>
+</section>
+
+<section>
+    <h2 class="section-title">Gallery</h2>
+    <div class="image-board">
+        {% assign open_day_images = site.static_files | where_exp: "file", "file.path contains '/assets/img/open_day/2025/gallery/'" %}
+        {% for image in open_day_images %}
+          <img src="{{ image.path }}" alt="Open Day Image">
+        {% endfor %}
+    </div>
+</section>

_lectures/cosmology/2026-03-03-cosmo-lec-1.md

@@ -0,0 +1,28 @@
+---
+layout: page
+title: Open Day 2026
+permalink: /open-day-2026/
+year: 2026
+image: /assets/img/open_day/2026/gallery/team2.webp   
+order: 7
+---
+
+<section>
+    <h2 class="section-title">Posters</h2>
+    <div class="image-board">
+        {% assign open_day_posters = site.static_files | where_exp: "file", "file.path contains '/assets/img/open_day/2026/posters/'" %}
+        {% for poster in open_day_posters %}
+          <img src="{{ poster.path }}" alt="{{ poster.name }}">
+        {% endfor %}
+    </div>
+</section>
+
+<section>
+    <h2 class="section-title">Gallery</h2>
+    <div class="image-board">
+        {% assign open_day_images = site.static_files | where_exp: "file", "file.path contains '/assets/img/open_day/2026/gallery/'" %}
+        {% for image in open_day_images %}
+          <img src="{{ image.path }}" alt="Open Day Image">
+        {% endfor %}
+    </div>
+</section>

_lectures/cosmology/2026-03-11-cosmo-lec-2.md

@@ -13,4 +13,36 @@
 //     .open-day {
 //         columns: 1;
 //     }
-// }
+// }
+
+.open-day-item {
+  width: 100%;       /* banner spans the page width */
+  margin: 40px 0;
+}
+
+.open-day-item a {
+  text-decoration: none;
+  color: inherit;
+  display: block;
+}
+
+.open-day-item img {
+  width: 100%;
+  height: 350px;          /* banner height - adjust */
+  object-fit: cover;      /* crop nicely like a banner */
+  border-radius: 10px;    /* optional */
+  display: block;
+}
+
+.open-day-item p {
+  text-align: center;
+  font-size: 1.4rem;
+  margin-top: 10px;
+  font-weight: 600;
+}
+
+.open-day-item {
+  list-style: none;
+  padding-left: 0;
+  margin-left: 0;
+}