Enhance user communication and improve UI components

- Update CLAUDE.md to mandate informal "Du" form for user communication in all UI text and emails.
- Modify LoginForm and RegisterForm components to reflect informal language in validation messages and placeholders.
- Add secure connection indicators in LoginForm for user awareness.
- Update alert component styles for better visual feedback.
- Introduce experimenta company information document for user reference.

app/components/Auth/LoginForm.vue

@@ -4,13 +4,14 @@
 import { z } from 'zod'
 import { useForm } from 'vee-validate'
 import { toTypedSchema } from '@vee-validate/zod'
+import { AlertCircle, AlertTriangle, Loader2, ShieldCheck, ShieldAlert } from 'lucide-vue-next'
 
 const { login } = useAuth()
 
 // Validation schema
 const loginSchema = toTypedSchema(
   z.object({
-    email: z.string().email('Bitte geben Sie eine gültige E-Mail-Adresse ein'),
+    email: z.string().email('Bitte gib eine gültige E-Mail-Adresse ein'),
     password: z.string().min(8, 'Passwort muss mindestens 8 Zeichen lang sein'),
   })
 )
@@ -33,19 +34,30 @@ const onSubmit = handleSubmit(async (values) => {
   } catch (error: any) {
     console.error('Login error:', error)
     // Error message is now directly in error.message (thrown by useAuth composable)
-    submitError.value = error.message || 'Anmeldung fehlgeschlagen. Bitte versuchen Sie es erneut.'
+    submitError.value = error.message || 'Anmeldung fehlgeschlagen. Bitte versuche es erneut.'
   }
 })
+
+// Is the connection secure?
+const isSecureConnection = computed(() => {
+  return window.location.protocol === 'https:'
+})
 </script>
 
 <template>
   <form @submit="onSubmit" class="space-y-6">
+    <!-- Error Alert -->
+    <Alert v-if="submitError" variant="error">
+      <AlertCircle class="h-6 w-6" />
+      <AlertDescription>{{ submitError }}</AlertDescription>
+    </Alert>
+
     <!-- Email Field -->
     <FormField v-slot="{ componentField }" name="email">
       <FormItem>
         <FormLabel class="text-white/90 text-base font-medium">E-Mail-Adresse</FormLabel>
         <FormControl>
-          <Input type="email" placeholder="ihre.email@beispiel.de" v-bind="componentField" />
+          <Input type="email" placeholder="deine.email@beispiel.de" v-bind="componentField" />
         </FormControl>
         <FormMessage />
       </FormItem>
@@ -62,21 +74,21 @@ const onSubmit = handleSubmit(async (values) => {
       </FormItem>
     </FormField>
 
-    <!-- Error Alert -->
-    <Alert v-if="submitError" class="border-destructive bg-destructive/10 text-white">
-      <AlertCircle class="h-5 w-5 text-destructive" />
-      <AlertDescription class="text-white/90">{{ submitError }}</AlertDescription>
-    </Alert>
-
     <!-- Submit Button -->
     <Button type="submit" variant="experimenta" size="experimenta" class="w-full" :disabled="isSubmitting">
       <Loader2 v-if="isSubmitting" class="mr-2 h-5 w-5 animate-spin" />
       {{ isSubmitting ? 'Wird angemeldet...' : 'Anmelden' }}
     </Button>
 
-    <!-- Info Text -->
-    <p class="text-sm text-white/70 text-center">
-      Anmeldung erfolgt verschlüsselt über unseren Partner Cidaas
+    <!-- Secure Connection Text -->
+    <p v-if="!isSecureConnection" class="flex items-center justify-center gap-2 text-sm text-white/70">
+      <ShieldAlert :size="16" class="flex-shrink-0 text-error" />
+      <span class="text-error">Die Datenübertragung erfolgt NICHT verschlüsselt</span>
     </p>
+    <p v-else class="flex items-center justify-center gap-2 text-sm text-white/70">
+      <ShieldCheck :size="16" class="flex-shrink-0 text-success" />
+      <span class="text-success">Die Datenübertragung erfolgt verschlüsselt</span>
+    </p>
+
   </form>
 </template>

app/components/Auth/RegisterForm.vue

@@ -4,13 +4,14 @@
 import { z } from 'zod'
 import { useForm } from 'vee-validate'
 import { toTypedSchema } from '@vee-validate/zod'
+import { AlertCircle, CheckCircle, Loader2 } from 'lucide-vue-next'
 
 const { register } = useAuth()
 
 // Validation schema
 const registerSchema = toTypedSchema(
   z.object({
-    email: z.string().email('Bitte geben Sie eine gültige E-Mail-Adresse ein'),
+    email: z.string().email('Bitte gib eine gültige E-Mail-Adresse ein'),
     password: z
       .string()
       .min(8, 'Das Passwort muss mindestens 8 Zeichen lang sein')
@@ -51,7 +52,7 @@ const onSubmit = handleSubmit(async (values) => {
     if (error.status === 409) {
       submitError.value = 'Diese E-Mail-Adresse ist bereits registriert.'
     } else {
-      submitError.value = error.data?.message || 'Registrierung fehlgeschlagen. Bitte versuchen Sie es erneut.'
+      submitError.value = error.data?.message || 'Registrierung fehlgeschlagen. Bitte versuche es erneut.'
     }
   }
 })
@@ -60,18 +61,18 @@ const onSubmit = handleSubmit(async (values) => {
 <template>
   <form @submit="onSubmit" class="space-y-5">
     <!-- Success Alert -->
-    <Alert v-if="submitSuccess" class="border-success bg-success/10 text-white">
-      <CheckCircle class="h-5 w-5 text-success" />
+    <Alert v-if="submitSuccess" class="bg-white/15 border-l-4 border-success text-white">
+      <CheckCircle class="h-6 w-6 text-success" />
       <AlertTitle class="text-success font-medium">Registrierung erfolgreich!</AlertTitle>
-      <AlertDescription class="text-white/90">
-        Bitte bestätigen Sie Ihre E-Mail-Adresse über den Link, den wir Ihnen gesendet haben.
+      <AlertDescription>
+        Bitte bestätige deine E-Mail-Adresse über den Link, den wir dir gesendet haben.
       </AlertDescription>
     </Alert>
 
     <!-- Error Alert -->
-    <Alert v-if="submitError" class="border-destructive bg-destructive/10 text-white">
-      <AlertCircle class="h-5 w-5 text-destructive" />
-      <AlertDescription class="text-white/90">{{ submitError }}</AlertDescription>
+    <Alert v-if="submitError" variant="error">
+      <AlertCircle class="h-6 w-6" />
+      <AlertDescription>{{ submitError }}</AlertDescription>
     </Alert>
 
     <!-- First Name -->
@@ -105,7 +106,7 @@ const onSubmit = handleSubmit(async (values) => {
       <FormItem>
         <FormLabel class="text-white/90 text-base font-medium">E-Mail-Adresse</FormLabel>
         <FormControl>
-          <Input type="email" placeholder="ihre.email@beispiel.de" v-bind="componentField" />
+          <Input type="email" placeholder="deine.email@beispiel.de" v-bind="componentField" />
         </FormControl>
         <FormMessage />
       </FormItem>
@@ -137,7 +138,7 @@ const onSubmit = handleSubmit(async (values) => {
 
     <!-- Terms & Privacy -->
     <p class="text-sm text-white/70 text-center">
-      Mit der Registrierung stimmen Sie unserer
+      Mit der Registrierung stimmst du unserer
       <a href="/datenschutz" class="text-accent font-medium transition-all duration-300 hover:brightness-125">
         Datenschutzerklärung
       </a>

app/components/ui/alert/index.ts

@@ -6,13 +6,15 @@ export { default as AlertDescription } from './AlertDescription.vue'
 export { default as AlertTitle } from './AlertTitle.vue'
 
 export const alertVariants = cva(
-  'relative w-full rounded-lg border p-4 [&>svg~*]:pl-7 [&>svg+div]:translate-y-[-3px] [&>svg]:absolute [&>svg]:left-4 [&>svg]:top-4 [&>svg]:text-foreground',
+  'relative w-full rounded-lg border p-4 flex items-center gap-3 [&>svg]:shrink-0 [&>svg]:text-foreground',
   {
     variants: {
       variant: {
         default: 'bg-background text-foreground',
         destructive:
           'border-destructive/50 text-destructive dark:border-destructive [&>svg]:text-destructive',
+        error:
+          'bg-white/15 border-l-4 border-warning text-white [&>svg]:text-warning',
       },
     },
     defaultVariants: {