Now I have full context. Let me make all the changes:

1. Gallery 2024: Restructure layout - video below hero banner, then photos, then "voltar" button at bottom
2. Sobre: Add 3rd edition 2026 (27 de agosto)
3. Alunos page: Change to 2026 with same students as 2025, keep "4o periodo" description
4. Turma page: 2024 = 8o periodo, 2025 = 6o periodo, add 2026 = 4o periodo
5. Perfil page: Update periodo labels accordingly

Now I need to add the videoItems and photoItems variables. Let me update the component to separate videos from photos:

Now update the overlay to use photoItems instead of images for navigation:

Now update the image counter in the overlay:

Now update the Sobre page to add the 3rd edition 2026:

Now update the Alunos main page to show 2026 turma (copying 2025 students):

Now update the banner at the bottom of Alunos page to link to previous turmas:

Now update the Turma [year] page to add 2026 students (copy of 2025), change 2025 to 6o periodo, and 2024 to 8o periodo:

Now update the periodo labels in the turma page:

Now update the navigation button to handle multiple turmas and the periodo in the student cards:

Now update the periodo in the student cards:

Now update the Perfil page to handle the 2026 turma and update periodo labels:

Now update the portfolio button to also show for 2026 students:

Now update the footer links across pages to include 2026:

Now update the turma page footer:

Now update the perfil page footer:

Now update the galeria footer too:

Now let me also update the sobre page footer:

Good, the sobre footer doesn't have turma links. Now let me also update the main alunos page card periodo text (currently shows "4o periodo" which is correct for 2026). Let me also check the home page footer:

Let me also update the contato page footer:

The contato file content was already read. Let me update it:

Todas as alterações foram feitas:

1. Galeria 2024: O video agora aparece logo abaixo do texto "Veja os melhores momentos da primeira edição", centralizado e em destaque. As fotos ficam na seção abaixo, e o botão "Voltar para Sobre" foi movido para depois das fotos.
2. Sobre: Adicionada a 3a Edição 2026 (27 de agosto) no topo da timeline de edições.
3. Alunos: A pagina principal agora mostra "Alunos 2026" com os mesmos alunos da turma 2025, mantendo a descricao "4o período". O banner inferior agora tem botões para as turmas 2025 e 2024.
4. Períodos atualizados: Turma 2024 agora mostra "8o período", turma 2025 mostra "6o período", e a nova turma 2026 mostra "4o período" -- tanto nos cards quanto nos perfis individuais.

Now I have the full context. I need to update the 2026 students in the turma page with the 20 new names, and also update the alunos main page. The new students are completely different people, so I need to use placeholder images and empty LinkedIn links for now.

Now update the alunos main page (which shows 2026 students on the homepage):

Now update the reference from studentsData2025 to studentsData2026:

Now I need to check if the LinkedIn button on the alunos main page needs to handle empty LinkedIn. Let me also check the card rendering:

I need to update the LinkedIn button to conditionally render only when there's a LinkedIn link:

All changes are complete. The turma 2026 now has the 20 new students (Andre Essinger, Beatriz Loreto, Bianca Nunes, Bruno Melo, Carolina Bastos, Dara Fadel, Eloah Puertas, Erik Rolin, Giovanna Candido, Julia Pereira, Laura Barbosa, Luana Alves, Maria Antonia Soeiro, Maria Clara Itapicuru, Maria Luiza Barcellos, Paola Veiros, Pedro Oliveira, Raquel Faria, Samuel Carvalho and Vitoria Moro), updated both on the main Alunos page and on the turma listing page. As these are new students, they currently have placeholder photos and no LinkedIn links -- those can be added later as the information becomes available. The LinkedIn button is conditionally rendered so it only appears when a link exists.