Update appointment capture template

init.el

@@ -1728,12 +1728,25 @@ Uses `mk/hyperspec-dir-locations' to find the directory."
                "* %T - End of Day Reflection :JOURNAL:\n- Was ist heute gut gelaufen?\n  %?\n- Was könnte verbessert werden?\n  \n- Worauf konzentriere ich mich morgen?\n  "
                :empty-lines 1))
 
-;; Appointment Capture Template
-;; Purpose: To capture important events and appointments.
-;; Fields: Heading, timestamp.
+;; Updated Appointment Capture Template
+;; Purpose: To capture and plan detailed appointments with agenda and preparation tasks.
+;; Fields: Title, Date/Time, Location, Attendees, Agenda Items, Preparation Tasks, Notes.
 (add-to-list 'org-capture-templates
              '("a" "Appointment" entry (file "agenda/appt.org")
-               "* %? \n%^{Date}t\n"))
+               "* %^{Title} %^g
+:PROPERTIES:
+:DATE: %^{Date}t
+:LOCATION: %^{Location}
+:ATTENDEES: %^{Attendees}
+:END:
+** Agenda
+%?
+** Preparation Tasks
+- [ ]
+- [ ]
+- [ ]
+** Notes
+" :empty-lines 1))
 
 ;; Meeting Capture Template
 ;; Purpose: To capture meeting notes and automatically start a clock for time tracking.