remove images, shorten instructions

docs/howto/manage/gui/account.md

@@ -1,38 +1,27 @@
 # How to create a NOMAD Central account and sign in
 
-This page describes account creation and sign-in for **NOMAD Central**, the public FAIRmat-hosted platform. If you use an institution-specific **NOMAD Oasis**, authentication may differ depending on local deployment settings.
-
-## Create a NOMAD account
-
-A NOMAD user account is required if you want to upload, share, publish, or analyze your data. However, exploring data in NOMAD does not require an account. Creating a NOMAD user account is quick and free.
-
-**Use the arrow buttons below to slide through the steps and create a NOMAD account.**
-<div class="image-slider" id="account-slider-create">
-    <div class="nav-arrow left" id="account-prev-create">←</div>
-    <img src="images/account_1.png" alt="Open the NOMAD login page and choose to register" class="active">
-    <img src="images/account_2.png" alt="Open the registration form" >
-    <img src="images/account_3.png" alt="Fill in the registration details" >
-    <img src="images/account_4.png" alt="Complete account creation" >
-    <div class="nav-arrow right" id="account-next-create">→</div>
-</div>
-
-## Sign in via Helmholtz AAI
-
-You can also log in to NOMAD using your university or research institute credentials, or with social accounts such as GitHub, ORCID, or Google via the [Helmholtz AAI](https://hifis.net/aai/){:target="_blank" rel="noopener"} (Authentication and Authorization Infrastructure).
-
-To sign in, select the Helmholtz AAI option in the login form, then choose your institution or preferred social account from the list.
-
-You will be redirected to your institution’s login page, where you can enter your credentials securely.
-
-!!! info "Helmholtz AAI"
-
-    Helmholtz AAI ensures secure and privacy-compliant authentication. Most major universities and research institutions in Germany and across Europe are supported.
-
-**Use the arrow buttons below to see how to sign in via Helmholtz AAI.**
-<div class="image-slider" id="account-slider-aai">
-    <div class="nav-arrow left" id="account-prev-aai">←</div>
-    <img src="images/account_1.png" alt="Open the NOMAD login page" class="active">
-    <img src="images/account_5.png" alt="Choose Helmholtz AAI login" >
-    <img src="images/account_6.png" alt="Select your institution or social account" >
-    <div class="nav-arrow right" id="account-next-aai">→</div>
-</div>
+Exploring public data stored at NOMAD Central can be done without signing in. However, managing your own data, e.g., uploading, sharing, publishing, requires an account.
+
+These instructions apply to NOMAD Central.
+Authentication on a NOMAD Oasis can differ; ask the Oasis administrator which
+sign-in method to use.
+
+<a id="create-a-nomad-account"></a>
+<a id="sign-in-via-helmholtz-aai"></a>
+
+## Sign in or create an account
+
+1. Open [NOMAD Central](https://nomad-lab.eu/prod/v1/gui/v2/){:target="_blank" rel="noopener"}
+   and select the **sign-in icon** (an arrow pointing into a door) in the
+   upper-right corner.
+2. On the sign-in page, choose one of these methods:
+
+    - **NOMAD account:** Sign in with your NOMAD credentials, or create a new account by selecting **Register**. Complete the form and security
+      check, and select **Register** again. Follow the link in the verification
+      email to activate the account before signing in.
+    - **External accounts:** To sign in using an account from a participating institution or
+      another available identity provider, select **University / Institute /
+      ORCID / Other**. This will take you to the Helmholtz ID page. Search for and select your provider, then follow its
+      instructions to complete sign-in. See the
+      [Helmholtz AAI](https://hifis.net/aai/){:target="_blank" rel="noopener"}
+      website for more information.