From 0d2b486a2cee2fa933e4d23f751ce824fe8a455b Mon Sep 17 00:00:00 2001
From: Tibo De Peuter <tibo.depeuter@ugent.be>
Date: Sat, 17 May 2025 15:50:47 +0200
Subject: [PATCH] chore(frontend): DiscussionsSideBar component

---
 .../src/components/DiscussionsSideBar.vue     |  66 +++
 frontend/src/router/index.ts                  |   6 -
 .../src/views/discussions/NoDiscussion.vue    |  64 +--
 .../views/discussions/SingleDiscussion.vue    | 511 +++++++++---------
 4 files changed, 317 insertions(+), 330 deletions(-)
 create mode 100644 frontend/src/components/DiscussionsSideBar.vue

diff --git a/frontend/src/components/DiscussionsSideBar.vue b/frontend/src/components/DiscussionsSideBar.vue
new file mode 100644
index 00000000..2aecfd5e
--- /dev/null
+++ b/frontend/src/components/DiscussionsSideBar.vue
@@ -0,0 +1,66 @@
+<script setup lang="ts">
+
+import type { LearningPath } from '@/data-objects/learning-paths/learning-path.ts';
+import UsingQueryResult from '@/components/UsingQueryResult.vue';
+import DiscussionSideBarElement from '@/components/DiscussionSideBarElement.vue';
+import { useI18n } from 'vue-i18n';
+import { useGetAllLearningPaths } from '@/queries/learning-paths.ts';
+import { ref } from 'vue';
+
+const { t, locale } = useI18n();
+
+const navigationDrawerShown = ref(true);
+
+const allLearningPathsResult = useGetAllLearningPaths(locale.value);
+
+</script>
+
+<template>
+    <v-navigation-drawer
+        v-model="navigationDrawerShown"
+        :width="350"
+        app
+    >
+        <div class="d-flex flex-column h-100">
+            <v-list-item>
+                <template v-slot:title>
+                    <div class="title">{{ t('discussions') }}</div>
+                </template>
+            </v-list-item>
+            <v-divider></v-divider>
+            <div>
+                <using-query-result
+                    :query-result="allLearningPathsResult"
+                    v-slot="learningPaths: {data: LearningPath[]}">
+                    <DiscussionSideBarElement
+                        v-for="learningPath in learningPaths.data"
+                        :path="learningPath"
+                        :activeObjectId="'' as string"
+                        :key="learningPath.hruid"
+                    >
+                    </DiscussionSideBarElement>
+                </using-query-result>
+            </div>
+        </div>
+    </v-navigation-drawer>
+    <div class="control-bar-above-content">
+        <v-btn
+            :icon="navigationDrawerShown ? 'mdi-menu-open' : 'mdi-menu'"
+            class="navigation-drawer-toggle-button"
+            variant="plain"
+            @click="navigationDrawerShown = !navigationDrawerShown"
+        ></v-btn>
+    </div>
+</template>
+
+<style scoped>
+.title {
+    color: #0e6942;
+    text-transform: uppercase;
+    font-weight: bolder;
+    padding-top: 2%;
+    font-size: 36px;
+}
+
+
+</style>
diff --git a/frontend/src/router/index.ts b/frontend/src/router/index.ts
index 24998bc0..890ccf39 100644
--- a/frontend/src/router/index.ts
+++ b/frontend/src/router/index.ts
@@ -57,12 +57,6 @@ const router = createRouter({
                     name: "UserClasses",
                     component: UserClasses,
                 },
-                // TODO Re-enable this route when the discussion page is ready
-                // {
-                //     Path: "discussion",
-                //     Name: "UserDiscussions",
-                //     Component: UserDiscussions,
-                // },
             ],
         },
 
diff --git a/frontend/src/views/discussions/NoDiscussion.vue b/frontend/src/views/discussions/NoDiscussion.vue
index 93d21103..116ee1c5 100644
--- a/frontend/src/views/discussions/NoDiscussion.vue
+++ b/frontend/src/views/discussions/NoDiscussion.vue
@@ -1,47 +1,13 @@
 <script setup lang="ts">
-    import type { LearningPath } from "@/data-objects/learning-paths/learning-path.ts";
-    import { useI18n } from "vue-i18n";
-    import { useGetAllLearningPaths } from "@/queries/learning-paths.ts";
-    import UsingQueryResult from "@/components/UsingQueryResult.vue";
-    import DiscussionSideBarElement from "@/components/DiscussionSideBarElement.vue";
-    import { ref } from "vue";
+import { useI18n } from 'vue-i18n';
+import DiscussionsSideBar from '@/components/DiscussionsSideBar.vue';
 
-    const { t, locale } = useI18n();
-
-    const allLearningPathsResult = useGetAllLearningPaths(locale.value)
-
-    const navigationDrawerShown = ref(true);
+const { t } = useI18n();
 
 </script>
 
 <template>
-    <v-navigation-drawer
-        v-model="navigationDrawerShown"
-        :width="350"
-        app
-    >
-        <div class="d-flex flex-column h-100">
-            <v-list-item>
-                <template v-slot:title>
-                    <div class="title">{{t("discussions")}}</div>
-                </template>
-            </v-list-item>
-            <v-divider></v-divider>
-            <div>
-                <using-query-result
-                    :query-result="allLearningPathsResult"
-                    v-slot="learningPaths: {data: LearningPath[]}">
-                    <DiscussionSideBarElement
-                        v-for="learningPath in learningPaths.data"
-                        :path="learningPath"
-                        :activeObjectId="'' as string"
-                        :key="learningPath.hruid"
-                        >
-                    </DiscussionSideBarElement>
-                </using-query-result>
-            </div>
-        </div>
-    </v-navigation-drawer>
+    <DiscussionsSideBar></DiscussionsSideBar>
     <div>
         <p class="no-discussion-tip">{{t("no-discussion-tip")}}</p>
     </div>
@@ -52,19 +18,12 @@
         display: flex;
         justify-content: center;
         align-items: center;
-        height: 100vh; 
+        height: 100vh;
         text-align: center;
         font-size: 18px;
         color: #666;
         padding: 0 20px;
     }
-    .title {
-        color: #0e6942;
-        text-transform: uppercase;
-        font-weight: bolder;
-        padding-top: 2%;
-        font-size: 36px;
-    }
     .learning-path-title {
         white-space: normal;
     }
@@ -130,19 +89,6 @@
         color: #999;
     }
 
-    .send-button {
-        background: none;
-        border: none;
-        cursor: pointer;
-        font-size: 16px;
-        color: #555;
-        transition: color 0.2s ease;
-    }
-
-    .send-button:hover {
-        color: #000;
-    }
-
     .discussion-link {
         margin-top: 8px;
         font-size: 13px;
diff --git a/frontend/src/views/discussions/SingleDiscussion.vue b/frontend/src/views/discussions/SingleDiscussion.vue
index 8e8a9701..4a442e1a 100644
--- a/frontend/src/views/discussions/SingleDiscussion.vue
+++ b/frontend/src/views/discussions/SingleDiscussion.vue
@@ -1,189 +1,176 @@
 <script setup lang="ts">
-    import { Language } from "@/data-objects/language.ts";
-    import type { LearningPath } from "@/data-objects/learning-paths/learning-path.ts";
-    import { computed, type ComputedRef, ref, watch } from "vue";
-    import type { LearningObject } from "@/data-objects/learning-objects/learning-object.ts";
-    import { useRoute } from "vue-router";
-    import { useI18n } from "vue-i18n";
-    import { useGetAllLearningPaths, useGetLearningPathQuery } from "@/queries/learning-paths.ts";
-    import { useLearningObjectListForPathQuery } from "@/queries/learning-objects.ts";
-    import UsingQueryResult from "@/components/UsingQueryResult.vue";
-    import authService from "@/services/auth/auth-service.ts";
-    import { LearningPathNode } from "@/data-objects/learning-paths/learning-path-node.ts";
-    import { useCreateQuestionMutation, useQuestionsQuery } from "@/queries/questions";
-    import type { QuestionsResponse } from "@/controllers/questions";
-    import type { LearningObjectIdentifierDTO } from "@dwengo-1/common/interfaces/learning-content";
-    import QandA from "@/components/QandA.vue";
-    import type { QuestionData, QuestionDTO } from "@dwengo-1/common/interfaces/question";
-    import { useStudentAssignmentsQuery, useStudentGroupsQuery } from "@/queries/students";
-    import type { AssignmentDTO } from "@dwengo-1/common/interfaces/assignment";
-    import type { GroupDTO } from "@dwengo-1/common/interfaces/group";
-    import DiscussionSideBarElement from "@/components/DiscussionSideBarElement.vue";
+import { Language } from '@/data-objects/language.ts';
+import type { LearningPath } from '@/data-objects/learning-paths/learning-path.ts';
+import { computed, type ComputedRef, ref, watch } from 'vue';
+import type { LearningObject } from '@/data-objects/learning-objects/learning-object.ts';
+import { useRoute } from 'vue-router';
+import { useGetAllLearningPaths, useGetLearningPathQuery } from '@/queries/learning-paths.ts';
+import { useLearningObjectListForPathQuery } from '@/queries/learning-objects.ts';
+import UsingQueryResult from '@/components/UsingQueryResult.vue';
+import authService from '@/services/auth/auth-service.ts';
+import { LearningPathNode } from '@/data-objects/learning-paths/learning-path-node.ts';
+import { useCreateQuestionMutation, useQuestionsQuery } from '@/queries/questions';
+import type { QuestionsResponse } from '@/controllers/questions';
+import type { LearningObjectIdentifierDTO } from '@dwengo-1/common/interfaces/learning-content';
+import QandA from '@/components/QandA.vue';
+import type { QuestionData, QuestionDTO } from '@dwengo-1/common/interfaces/question';
+import { useStudentAssignmentsQuery, useStudentGroupsQuery } from '@/queries/students';
+import type { AssignmentDTO } from '@dwengo-1/common/interfaces/assignment';
+import type { GroupDTO } from '@dwengo-1/common/interfaces/group';
+import DiscussionsSideBar from '@/components/DiscussionsSideBar.vue';
 
-    const route = useRoute();
-    const { t } = useI18n();
+const route = useRoute();
 
-    const props = defineProps<{
-        hruid: string;
-        language: Language;
-        learningObjectHruid?: string;
-    }>();
+const props = defineProps<{
+    hruid: string;
+    language: Language;
+    learningObjectHruid?: string;
+}>();
 
-    interface LearningPathPageQuery {
-        forGroup?: string;
-        assignmentNo?: string;
-        classId?: string;
-    }
+interface LearningPathPageQuery {
+    forGroup?: string;
+    assignmentNo?: string;
+    classId?: string;
+}
 
-    const query = computed(() => route.query as LearningPathPageQuery);
+const query = computed(() => route.query as LearningPathPageQuery);
 
-    const forGroup = computed(() => {
-        if (query.value.forGroup && query.value.assignmentNo && query.value.classId) {
-            return {
-                forGroup: parseInt(query.value.forGroup),
-                assignmentNo: parseInt(query.value.assignmentNo),
-                classId: query.value.classId,
-            };
-        }
-        return undefined;
-    });
-
-    const allLearningPathsResult = useGetAllLearningPaths(props.language)
-    
-    // TODO: dit moet alle leerpaden met vragen teruggeven, maar werkt niet
-    const _questionedLearningPaths = computed(() => {
-        function objectHasQuestion(learningObject: LearningObject): ComputedRef<boolean> {
-            const loid = {
-                hruid: learningObject.key,
-                version: learningObject.version,
-                language: learningObject.language,
-            } as LearningObjectIdentifierDTO;
-            const { data } = useQuestionsQuery(loid);
-            const hasQuestions = computed(() => (data.value?.questions.length ?? 0) > 0);
-            return hasQuestions;
-        }
-        function pathHasQuestion(learningPath: LearningPath): boolean {
-            const learningPathQueryResult = useGetLearningPathQuery(learningPath.hruid, learningPath.language as Language, forGroup);
-            const learningObjectListQueryResult = useLearningObjectListForPathQuery(learningPathQueryResult.data);
-            const learningObjects = learningObjectListQueryResult.data.value;
-            return learningObjects?.some(objectHasQuestion) || false;
-
-        }
-        return allLearningPathsResult.data.value?.filter(pathHasQuestion);
-    })
-
-    const learningPathQueryResult = useGetLearningPathQuery(props.hruid, props.language, forGroup);
-
-    const learningObjectListQueryResult = useLearningObjectListForPathQuery(learningPathQueryResult.data);
-
-    const nodesList: ComputedRef<LearningPathNode[] | null> = computed(
-        () => learningPathQueryResult.data.value?.nodesAsList ?? null,
-    );
-
-    const currentNode = computed(() => {
-        const currentHruid = props.learningObjectHruid;
-        return nodesList.value?.find((it) => it.learningobjectHruid === currentHruid);
-    });
-
-    const getQuestionsQuery = useQuestionsQuery(
-        computed(
-            () =>
-                ({
-                    language: currentNode.value?.language,
-                    hruid: currentNode.value?.learningobjectHruid,
-                    version: currentNode.value?.version,
-                }) as LearningObjectIdentifierDTO,
-        ),
-    );
-
-    const navigationDrawerShown = ref(true);
-
-    const studentAssignmentsQueryResult = useStudentAssignmentsQuery(
-        authService.authState.user?.profile.preferred_username,
-    );
-    const pathIsAssignment = computed(() => {
-        const assignments = (studentAssignmentsQueryResult.data.value?.assignments as AssignmentDTO[]) || [];
-        return assignments.some(
-            (assignment) => assignment.learningPath === props.hruid && assignment.language === props.language,
-        );
-    });
-    const loID: ComputedRef<LearningObjectIdentifierDTO> = computed(() => ({
-            hruid: props.learningObjectHruid as string,
-            language: props.language,
-            version: currentNode.value?.version
-        }));
-
-    const createQuestionMutation = useCreateQuestionMutation(loID.value);
-
-    watch(
-        () => [route.params.hruid, route.params.language, route.params.learningObjectHruid],
-        () => {
-            //TODO: moet op een of andere manier createQuestionMutation opnieuw kunnen instellen
-            //      Momenteel opgelost door de DiscussionsForward page workaround
-        }
-    );
-
-    const groupsQueryResult = useStudentGroupsQuery(authService.authState.user?.profile.preferred_username);
-
-    const questionInput = ref("");
-
-    function submitQuestion(): void {
-        const assignments = studentAssignmentsQueryResult.data.value?.assignments as AssignmentDTO[];
-        const assignment = assignments.find(
-            (assignment) => assignment.learningPath === props.hruid && assignment.language === props.language,
-        );
-        const groups = groupsQueryResult.data.value?.groups as GroupDTO[];
-        const group = groups?.find((group) => group.assignment === assignment?.id) as GroupDTO;
-        const questionData: QuestionData = {
-            author: authService.authState.user?.profile.preferred_username,
-            content: questionInput.value,
-            inGroup: group, 
+const forGroup = computed(() => {
+    if (query.value.forGroup && query.value.assignmentNo && query.value.classId) {
+        return {
+            forGroup: parseInt(query.value.forGroup),
+            assignmentNo: parseInt(query.value.assignmentNo),
+            classId: query.value.classId,
         };
-        if (questionInput.value !== "") {
-            createQuestionMutation.mutate(questionData, {
-                onSuccess: async () => {
-                    questionInput.value = ""; // Clear the input field after submission
-                    await getQuestionsQuery.refetch(); // Reload the questions
-                },
-                onError: (_) => {
-                    // TODO Handle error
-                    // - console.error(e);
-                },
-            });
-        }
     }
+    return undefined;
+});
+
+const allLearningPathsResult = useGetAllLearningPaths(props.language);
+
+async function learningObjectHasQuestions(learningObject: LearningObject): Promise<boolean> {
+    const loid = {
+        hruid: learningObject.key,
+        version: learningObject.version,
+        language: learningObject.language,
+    } as LearningObjectIdentifierDTO;
+    const { data } = useQuestionsQuery(loid);
+    return (data.value?.questions.length ?? 0) > 0;
+}
+
+async function learningPathHasQuestions(learningPath: LearningPath): Promise<boolean> {
+    const learningPathQueryResult = useGetLearningPathQuery(learningPath.hruid, learningPath.language as Language, forGroup);
+    const learningObjectListQueryResult = useLearningObjectListForPathQuery(learningPathQueryResult.data);
+    const learningObjects = learningObjectListQueryResult.data.value || [];
+    const hasQuestions = await Promise.all(
+        learningObjects.map(async (learningObject) => learningObjectHasQuestions(learningObject)),
+    );
+    return hasQuestions.some((hasQuestion) => hasQuestion);
+}
+
+const questionedLearningPaths = ref<LearningPath[] | null>(null);
+
+watch(
+    () => allLearningPathsResult.data.value,
+    async (learningPaths) => {
+        if (learningPaths) {
+            const pathsWithQuestions = await Promise.all(
+                learningPaths.map(async (learningPath) => {
+                    const hasQuestions = await learningPathHasQuestions(learningPath);
+                    return hasQuestions ? learningPath : null;
+                }),
+            );
+            questionedLearningPaths.value = pathsWithQuestions.filter((path) => path !== null);
+        }
+    },
+    { immediate: true },
+);
+
+const learningPathQueryResult = useGetLearningPathQuery(props.hruid, props.language, forGroup);
+
+const learningObjectListQueryResult = useLearningObjectListForPathQuery(learningPathQueryResult.data);
+
+const nodesList: ComputedRef<LearningPathNode[] | null> = computed(
+    () => learningPathQueryResult.data.value?.nodesAsList ?? null,
+);
+
+const currentNode = computed(() => {
+    const currentHruid = props.learningObjectHruid;
+    return nodesList.value?.find((it) => it.learningobjectHruid === currentHruid);
+});
+
+const getQuestionsQuery = useQuestionsQuery(
+    computed(
+        () =>
+            ({
+                language: currentNode.value?.language,
+                hruid: currentNode.value?.learningobjectHruid,
+                version: currentNode.value?.version,
+            }) as LearningObjectIdentifierDTO,
+    ),
+);
+
+const studentAssignmentsQueryResult = useStudentAssignmentsQuery(
+    authService.authState.user?.profile.preferred_username,
+);
+const pathIsAssignment = computed(() => {
+    const assignments = (studentAssignmentsQueryResult.data.value?.assignments as AssignmentDTO[]) || [];
+    return assignments.some(
+        (assignment) => assignment.learningPath === props.hruid && assignment.language === props.language,
+    );
+});
+const loID: ComputedRef<LearningObjectIdentifierDTO> = computed(() => ({
+    hruid: props.learningObjectHruid as string,
+    language: props.language,
+    version: currentNode.value?.version,
+}));
+
+const createQuestionMutation = useCreateQuestionMutation(loID.value);
+
+watch(
+    () => [route.params.hruid, route.params.language, route.params.learningObjectHruid],
+    () => {
+        //TODO: moet op een of andere manier createQuestionMutation opnieuw kunnen instellen
+        //      Momenteel opgelost door de DiscussionsForward page workaround
+    },
+);
+
+const groupsQueryResult = useStudentGroupsQuery(authService.authState.user?.profile.preferred_username);
+
+const questionInput = ref('');
+
+function submitQuestion(): void {
+    const assignments = studentAssignmentsQueryResult.data.value?.assignments as AssignmentDTO[];
+    const assignment = assignments.find(
+        (assignment) => assignment.learningPath === props.hruid && assignment.language === props.language,
+    );
+    const groups = groupsQueryResult.data.value?.groups as GroupDTO[];
+    const group = groups?.find((group) => group.assignment === assignment?.id) as GroupDTO;
+    const questionData: QuestionData = {
+        author: authService.authState.user?.profile.preferred_username,
+        content: questionInput.value,
+        inGroup: group,
+    };
+    if (questionInput.value !== '') {
+        createQuestionMutation.mutate(questionData, {
+            onSuccess: async () => {
+                questionInput.value = ''; // Clear the input field after submission
+                await getQuestionsQuery.refetch(); // Reload the questions
+            },
+            onError: (_) => {
+                // TODO Handle error
+                // - console.error(e);
+            },
+        });
+    }
+}
 
 
 </script>
 
 <template>
-    <v-navigation-drawer
-        v-model="navigationDrawerShown"
-        :width="350"
-    >
-        <div class="d-flex flex-column h-100">
-            <v-list-item>
-                <template v-slot:title>
-                    <div class="title">{{t("discussions")}}</div>
-                </template>
-            </v-list-item>
-            <v-divider></v-divider>
-            <div>
-                <using-query-result
-                    :query-result="allLearningPathsResult"
-                    v-slot="learningPaths: {data: LearningPath[]}">
-                    <DiscussionSideBarElement
-                        v-for="learningPath in learningPaths.data"
-                        :path="learningPath"
-                        :activeObjectId="props.learningObjectHruid as string"
-                        :key="learningPath.hruid"
-                        >
-                    </DiscussionSideBarElement>
-                </using-query-result>
-            </div>
-        </div>
-    </v-navigation-drawer>
-    
+    <DiscussionsSideBar></DiscussionsSideBar>
+
     <div
         v-if="authService.authState.activeRole === 'student' && pathIsAssignment"
         class="question-box"
@@ -212,103 +199,97 @@
 </template>
 
 <style scoped>
-    .title {
-        color: #0e6942;
-        text-transform: uppercase;
-        font-weight: bolder;
-        padding-top: 2%;
-        font-size: 36px;
-    }
-    .learning-path-title {
-        white-space: normal;
-    }
-    .search-field-container {
-        min-width: 250px;
-    }
-    .control-bar-above-content {
-        margin-left: 5px;
-        margin-right: 5px;
-        margin-bottom: -30px;
-        display: flex;
-        justify-content: space-between;
-    }
-    .learning-object-view-container {
-        padding-left: 20px;
-        padding-right: 20px;
-        padding-bottom: 20px;
-    }
-    .navigation-buttons-container {
-        padding: 20px;
-        display: flex;
-        justify-content: space-between;
-    }
-    .assignment-indicator {
-        position: absolute;
-        bottom: 10px;
-        left: 10px;
-        padding: 4px 12px;
-        border: 2px solid #f8bcbc;
-        border-radius: 20px;
-        color: #f36c6c;
-        background-color: rgba(248, 188, 188, 0.1);
-        font-weight: bold;
-        font-family: Arial, sans-serif;
-        font-size: 14px;
-        text-transform: uppercase;
-        z-index: 2; /* Less than modals/popups */
-    }
-    .question-box {
-        width: 100%;
-        max-width: 400px;
-        margin: 20px auto;
-        font-family: sans-serif;
-    }
-    .input-wrapper {
-        display: flex;
-        align-items: center;
-        border: 1px solid #ccc;
-        border-radius: 999px;
-        padding: 8px 12px;
-        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
-    }
+.learning-path-title {
+    white-space: normal;
+}
 
-    .question-input {
-        flex: 1;
-        border: none;
-        outline: none;
-        font-size: 14px;
-        background-color: transparent;
-    }
+.search-field-container {
+    min-width: 250px;
+}
 
-    .question-input::placeholder {
-        color: #999;
-    }
+.control-bar-above-content {
+    margin-left: 5px;
+    margin-right: 5px;
+    margin-bottom: -30px;
+    display: flex;
+    justify-content: space-between;
+}
 
-    .send-button {
-        background: none;
-        border: none;
-        cursor: pointer;
-        font-size: 16px;
-        color: #555;
-        transition: color 0.2s ease;
-    }
+.learning-object-view-container {
+    padding-left: 20px;
+    padding-right: 20px;
+    padding-bottom: 20px;
+}
 
-    .send-button:hover {
-        color: #000;
-    }
+.navigation-buttons-container {
+    padding: 20px;
+    display: flex;
+    justify-content: space-between;
+}
 
-    .discussion-link {
-        margin-top: 8px;
-        font-size: 13px;
-        color: #444;
-    }
+.assignment-indicator {
+    position: absolute;
+    bottom: 10px;
+    left: 10px;
+    padding: 4px 12px;
+    border: 2px solid #f8bcbc;
+    border-radius: 20px;
+    color: #f36c6c;
+    background-color: rgba(248, 188, 188, 0.1);
+    font-weight: bold;
+    font-family: Arial, sans-serif;
+    font-size: 14px;
+    text-transform: uppercase;
+    z-index: 2; /* Less than modals/popups */
+}
 
-    .discussion-link a {
-        color: #3b82f6; /* blue */
-        text-decoration: none;
-    }
+.question-box {
+    width: 100%;
+    max-width: 400px;
+    margin: 20px auto;
+    font-family: sans-serif;
+}
 
-    .discussion-link a:hover {
-        text-decoration: underline;
-    }
+.input-wrapper {
+    display: flex;
+    align-items: center;
+    border: 1px solid #ccc;
+    border-radius: 999px;
+    padding: 8px 12px;
+    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
+}
+
+.question-input {
+    flex: 1;
+    border: none;
+    outline: none;
+    font-size: 14px;
+    background-color: transparent;
+}
+
+.question-input::placeholder {
+    color: #999;
+}
+
+.send-button {
+    background: none;
+    border: none;
+    cursor: pointer;
+    font-size: 16px;
+    color: #555;
+    transition: color 0.2s ease;
+}
+
+.send-button:hover {
+    color: #000;
+}
+
+.discussion-link a {
+    color: #3b82f6; /* blue */
+    text-decoration: none;
+}
+
+.discussion-link a:hover {
+    text-decoration: underline;
+}
 </style>