first commit

app/templates/errors/error.html

@@ -0,0 +1,15 @@
+{% extends 'base.html' %}
+{% block content %}
+<div class="row justify-content-center">
+  <div class="col-12 col-md-8 col-xl-6">
+    <div class="card border-0 shadow-sm">
+      <div class="card-body p-4 text-center">
+        <div class="display-4 fw-bold text-primary mb-2">{{ status_code }}</div>
+        <h1 class="h3">{{ title }}</h1>
+        <p class="text-secondary mb-4">{{ message }}</p>
+        <a class="btn btn-primary" href="{{ url_for('main.dashboard') if current_user.is_authenticated else url_for('auth.login') }}">Go back</a>
+      </div>
+    </div>
+  </div>
+</div>
+{% endblock %}