feat: Implement expense creation modal and API integration

- Added ExpenseCreateModal component for adding new expenses with form validation.
- Integrated API endpoint for creating expenses, ensuring only authorized users can access it.
- Updated dashboard to include functionality for adding expenses and refreshing the expense list after creation.
- Enhanced UI with Vuetify components for better user experience and responsiveness.

components/ExpenseCreateModal.vue

@@ -0,0 +1,322 @@
+<template>
+  <v-dialog
+    v-model="dialog"
+    max-width="600"
+    persistent
+    scrollable
+  >
+    <v-card>
+      <v-card-title class="d-flex align-center">
+        <v-icon class="mr-2">mdi-receipt-text</v-icon>
+        <span>Add New Expense</span>
+        <v-spacer />
+        <v-btn
+          @click="closeModal"
+          icon="mdi-close"
+          variant="text"
+          size="small"
+        />
+      </v-card-title>
+
+      <v-card-text>
+        <v-form ref="form" @submit.prevent="saveExpense">
+          <v-row>
+            <!-- Merchant/Description -->
+            <v-col cols="12">
+              <v-text-field
+                v-model="expense.merchant"
+                label="Merchant/Description"
+                variant="outlined"
+                :rules="[rules.required]"
+                required
+              />
+            </v-col>
+
+            <!-- Amount and Currency -->
+            <v-col cols="8">
+              <v-text-field
+                v-model="expense.amount"
+                label="Amount"
+                type="number"
+                step="0.01"
+                variant="outlined"
+                :rules="[rules.required, rules.positive]"
+                required
+              />
+            </v-col>
+            <v-col cols="4">
+              <v-select
+                v-model="expense.currency"
+                :items="currencies"
+                label="Currency"
+                variant="outlined"
+                :rules="[rules.required]"
+                required
+              />
+            </v-col>
+
+            <!-- Category -->
+            <v-col cols="12" md="6">
+              <v-select
+                v-model="expense.category"
+                :items="categories"
+                label="Category"
+                variant="outlined"
+                :rules="[rules.required]"
+                required
+              />
+            </v-col>
+
+            <!-- Payer -->
+            <v-col cols="12" md="6">
+              <v-text-field
+                v-model="expense.payer"
+                label="Payer"
+                variant="outlined"
+                :rules="[rules.required]"
+                required
+              />
+            </v-col>
+
+            <!-- Date -->
+            <v-col cols="12" md="6">
+              <v-text-field
+                v-model="expense.date"
+                label="Date"
+                type="date"
+                variant="outlined"
+                :rules="[rules.required]"
+                required
+              />
+            </v-col>
+
+            <!-- Time -->
+            <v-col cols="12" md="6">
+              <v-text-field
+                v-model="expense.time"
+                label="Time"
+                type="time"
+                variant="outlined"
+                :rules="[rules.required]"
+                required
+              />
+            </v-col>
+
+            <!-- Notes -->
+            <v-col cols="12">
+              <v-textarea
+                v-model="expense.notes"
+                label="Notes (Optional)"
+                variant="outlined"
+                rows="3"
+                auto-grow
+              />
+            </v-col>
+
+            <!-- Receipt Upload -->
+            <v-col cols="12">
+              <v-file-input
+                v-model="expense.receipt"
+                label="Receipt Image (Optional)"
+                accept="image/*"
+                variant="outlined"
+                prepend-icon="mdi-camera"
+                show-size
+              />
+            </v-col>
+          </v-row>
+        </v-form>
+      </v-card-text>
+
+      <v-card-actions class="px-6 pb-4">
+        <v-spacer />
+        <v-btn
+          @click="closeModal"
+          variant="text"
+          :disabled="saving"
+        >
+          Cancel
+        </v-btn>
+        <v-btn
+          @click="saveExpense"
+          color="primary"
+          :loading="saving"
+          :disabled="!isValid"
+        >
+          Add Expense
+        </v-btn>
+      </v-card-actions>
+    </v-card>
+  </v-dialog>
+</template>
+
+<script setup lang="ts">
+import { ref, computed, watch, nextTick } from 'vue';
+import type { Expense } from '@/utils/types';
+
+interface Props {
+  modelValue: boolean;
+}
+
+interface Emits {
+  (e: 'update:modelValue', value: boolean): void;
+  (e: 'created', expense: Expense): void;
+}
+
+const props = defineProps<Props>();
+const emit = defineEmits<Emits>();
+
+const dialog = computed({
+  get: () => props.modelValue,
+  set: (value) => emit('update:modelValue', value)
+});
+
+const form = ref();
+const saving = ref(false);
+
+// Form data
+const expense = ref({
+  merchant: '',
+  amount: '',
+  currency: 'EUR',
+  category: '',
+  payer: '',
+  date: '',
+  time: '',
+  notes: '',
+  receipt: null as File[] | null
+});
+
+// Form options
+const currencies = ['EUR', 'USD', 'GBP', 'AUD', 'CAD', 'CHF', 'SEK', 'NOK', 'DKK'];
+const categories = ['Food/Drinks', 'Shop', 'Online', 'Transportation', 'Accommodation', 'Entertainment', 'Other'];
+
+// Validation rules
+const rules = {
+  required: (value: any) => !!value || 'This field is required',
+  positive: (value: any) => {
+    const num = parseFloat(value);
+    return (!isNaN(num) && num > 0) || 'Amount must be positive';
+  }
+};
+
+// Computed properties
+const isValid = computed(() => {
+  return !!(
+    expense.value.merchant &&
+    expense.value.amount &&
+    expense.value.currency &&
+    expense.value.category &&
+    expense.value.payer &&
+    expense.value.date &&
+    expense.value.time &&
+    parseFloat(expense.value.amount) > 0
+  );
+});
+
+// Methods
+const resetForm = () => {
+  const now = new Date();
+  expense.value = {
+    merchant: '',
+    amount: '',
+    currency: 'EUR',
+    category: '',
+    payer: '',
+    date: now.toISOString().slice(0, 10),
+    time: now.toTimeString().slice(0, 5),
+    notes: '',
+    receipt: null
+  };
+  
+  if (form.value) {
+    form.value.resetValidation();
+  }
+};
+
+const closeModal = () => {
+  if (!saving.value) {
+    dialog.value = false;
+  }
+};
+
+const saveExpense = async () => {
+  if (!form.value) return;
+  
+  const { valid } = await form.value.validate();
+  if (!valid) return;
+  
+  saving.value = true;
+  
+  try {
+    // Combine date and time for the API
+    const dateTime = `${expense.value.date}T${expense.value.time}:00`;
+    
+    // Prepare the expense data
+    const expenseData = {
+      "Establishment Name": expense.value.merchant,
+      Price: `${expense.value.currency}${expense.value.amount}`,
+      Category: expense.value.category,
+      Payer: expense.value.payer,
+      Time: dateTime,
+      Contents: expense.value.notes || null,
+      "Payment Method": "Card", // Default to Card for now
+      Paid: false,
+      currency: expense.value.currency
+    };
+    
+    console.log('[ExpenseCreateModal] Creating expense:', expenseData);
+    
+    // Call API to create expense
+    const response = await $fetch<Expense>('/api/create-expense', {
+      method: 'POST',
+      body: expenseData
+    });
+    
+    console.log('[ExpenseCreateModal] Expense created successfully:', response);
+    
+    // Emit the created event
+    emit('created', response);
+    
+    // Close the modal
+    dialog.value = false;
+    
+  } catch (error: any) {
+    console.error('[ExpenseCreateModal] Error creating expense:', error);
+    
+    // Show error message (you might want to use a toast notification here)
+    alert('Failed to create expense. Please try again.');
+  } finally {
+    saving.value = false;
+  }
+};
+
+// Watch for modal open/close
+watch(dialog, (newValue) => {
+  if (newValue) {
+    // Reset form when modal opens
+    nextTick(() => {
+      resetForm();
+    });
+  }
+});
+
+// Initialize form with current date/time
+onMounted(() => {
+  resetForm();
+});
+</script>
+
+<style scoped>
+.v-dialog > .v-card {
+  overflow: visible;
+}
+
+.v-form {
+  width: 100%;
+}
+
+.v-card-actions {
+  border-top: 1px solid rgba(0, 0, 0, 0.12);
+}
+</style>

components/ExpenseList.vue

@@ -1,148 +1,187 @@
 <template>
   <div class="expense-list">
     <!-- Bulk Selection Header -->
-    <div v-if="expenses.length > 0" class="flex items-center justify-between mb-4">
-      <div class="flex items-center gap-3">
-        <label class="flex items-center gap-2 cursor-pointer">
-          <input
-            type="checkbox"
-            :checked="isAllSelected"
-            :indeterminate="isSomeSelected"
-            @change="toggleSelectAll"
-            class="checkbox checkbox-primary"
-          />
-          <span class="text-sm font-medium">
-            {{ selectedExpenses.length > 0 ? `${selectedExpenses.length} selected` : 'Select all' }}
-          </span>
-        </label>
+    <div v-if="expenses.length > 0" class="d-flex align-center justify-space-between mb-4">
+      <div class="d-flex align-center">
+        <v-checkbox
+          :model-value="isAllSelected"
+          :indeterminate="isSomeSelected"
+          @update:model-value="toggleSelectAll"
+          hide-details
+          density="compact"
+          class="mr-2"
+        />
+        <span class="text-body-2 font-weight-medium">
+          {{ selectedExpenses.length > 0 ? `${selectedExpenses.length} selected` : 'Select all' }}
+        </span>
       </div>
       
-      <div class="text-sm text-gray-600 dark:text-gray-300">
+      <div class="text-body-2 text-grey-darken-1">
         {{ expenses.length }} expenses • €{{ totalAmount.toFixed(2) }}
       </div>
     </div>
 
-    <!-- Expense Grid - Mobile optimized -->
-    <div class="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-3 gap-3 sm:gap-4">
-      <div
+    <!-- Expense Grid -->
+    <v-row class="expense-grid">
+      <v-col
         v-for="expense in expenses"
         :key="expense.Id"
-        class="expense-card"
-        :class="{ 'selected': isSelected(expense.Id) }"
-        @click="selectExpense(expense.Id)"
+        cols="12"
+        sm="6"
+        lg="4"
+        xl="3"
       >
-        <!-- Selection Checkbox -->
-        <div class="absolute top-3 left-3 z-10">
-          <input
-            type="checkbox"
-            :checked="isSelected(expense.Id)"
-            @click.stop="toggleExpense(expense.Id)"
-            class="checkbox checkbox-primary checkbox-sm"
-          />
-        </div>
+        <v-card
+          :class="{ 'selected-card': isSelected(expense.Id) }"
+          class="expense-card"
+          elevation="2"
+          @click="selectExpense(expense.Id)"
+        >
+          <!-- Selection Checkbox -->
+          <div class="card-checkbox">
+            <v-checkbox
+              :model-value="isSelected(expense.Id)"
+              @update:model-value="toggleExpense(expense.Id)"
+              @click.stop
+              hide-details
+              density="compact"
+              color="primary"
+            />
+          </div>
 
-        <!-- Receipt Image -->
-        <div class="receipt-container">
-          <div 
-            v-if="expense.Receipt && expense.Receipt.length > 0"
-            class="receipt-image-wrapper"
-            @click.stop="$emit('expense-clicked', expense)"
-          >
-            <LazyReceiptImage
-              :receipt="expense.Receipt[0]"
-              :alt="`Receipt for ${expense['Establishment Name']}`"
-              class="receipt-image"
+          <!-- Receipt Image Section -->
+          <div class="receipt-section">
+            <div 
+              v-if="expense.Receipt && expense.Receipt.length > 0"
+              class="receipt-image-container"
+              @click.stop="$emit('expense-clicked', expense)"
+            >
+              <LazyReceiptImage
+                :receipt="expense.Receipt[0]"
+                :alt="`Receipt for ${expense['Establishment Name']}`"
+                class="receipt-image"
+              />
+              
+              <!-- Multiple receipts indicator -->
+              <v-chip
+                v-if="expense.Receipt.length > 1"
+                size="x-small"
+                color="primary"
+                class="receipt-count-chip"
+              >
+                +{{ expense.Receipt.length - 1 }}
+              </v-chip>
+            </div>
+            
+            <!-- No receipt placeholder -->
+            <div 
+              v-else 
+              class="no-receipt-placeholder"
+              @click.stop="$emit('expense-clicked', expense)"
+            >
+              <v-icon size="48" color="grey-lighten-1">mdi-receipt-text-outline</v-icon>
+              <span class="text-caption text-grey">No receipt</span>
+            </div>
+          </div>
+
+          <!-- Expense Details -->
+          <v-card-text @click.stop="$emit('expense-clicked', expense)">
+            <!-- Merchant Name -->
+            <div class="merchant-name">
+              {{ expense['Establishment Name'] || 'Unknown Merchant' }}
+            </div>
+            
+            <!-- Price -->
+            <div class="price-display">
+              {{ expense.Price }}
+              <span v-if="expense.PriceUSD && expense.PriceUSD !== expense.PriceNumber" class="converted-price">
+                (≈ ${{ expense.PriceUSD.toFixed(2) }})
+              </span>
+            </div>
+            
+            <!-- Category and Payment Method -->
+            <div class="d-flex align-center justify-space-between my-2">
+              <v-chip
+                :color="getCategoryColor(expense.Category)"
+                size="small"
+                variant="tonal"
+              >
+                {{ expense.Category || 'Other' }}
+              </v-chip>
+              
+              <div class="d-flex align-center">
+                <v-icon 
+                  :icon="expense['Payment Method'] === 'Card' ? 'mdi-credit-card' : 'mdi-cash'" 
+                  size="small"
+                  class="mr-1"
+                />
+                <span class="text-caption">{{ expense['Payment Method'] || 'Unknown' }}</span>
+              </div>
+            </div>
+            
+            <!-- Date and Time -->
+            <div class="date-display">
+              <v-icon size="small" class="mr-1">mdi-calendar-clock</v-icon>
+              {{ formatDateTime(expense.Time) }}
+            </div>
+            
+            <!-- Payer -->
+            <div v-if="expense.Payer" class="payer-display">
+              <v-icon size="small" class="mr-1">mdi-account</v-icon>
+              {{ expense.Payer }}
+            </div>
+            
+            <!-- Contents Preview -->
+            <div v-if="expense.Contents" class="contents-preview">
+              {{ getContentsPreview(expense) }}
+            </div>
+          </v-card-text>
+
+          <!-- Quick Actions -->
+          <div class="card-actions">
+            <v-btn
+              @click.stop="$emit('expense-clicked', expense)"
+              icon="mdi-eye"
+              size="small"
+              variant="elevated"
+              color="white"
+              class="action-button"
             />
             
-            <!-- Multiple receipts indicator -->
-            <div v-if="expense.Receipt.length > 1" class="receipt-count-badge">
-              +{{ expense.Receipt.length - 1 }}
-            </div>
+            <v-btn
+              v-if="expense.Receipt && expense.Receipt.length > 0"
+              @click.stop="openReceipt(expense.Receipt[0])"
+              icon="mdi-image"
+              size="small"
+              variant="elevated"
+              color="white"
+              class="action-button"
+            />
           </div>
-          
-          <!-- No receipt placeholder -->
-          <div v-else class="no-receipt-placeholder" @click.stop="$emit('expense-clicked', expense)">
-            <Icon name="mdi:receipt-outline" class="w-12 h-12 text-gray-400" />
-            <span class="text-xs text-gray-500">No receipt</span>
-          </div>
-        </div>
-
-        <!-- Expense Details -->
-        <div class="expense-details" @click.stop="$emit('expense-clicked', expense)">
-          <div class="establishment-name">
-            {{ expense['Establishment Name'] || 'Unknown' }}
-          </div>
-          
-          <div class="price-amount">
-            {{ expense.DisplayPrice || expense.Price }}
-          </div>
-          
-          <div class="expense-meta">
-            <div class="category-badge" :class="`category-${expense.Category?.toLowerCase()}`">
-              {{ expense.Category }}
-            </div>
-            
-            <div class="payment-method">
-              <Icon 
-                :name="expense['Payment Method'] === 'Card' ? 'mdi:credit-card' : 'mdi:cash'" 
-                class="w-4 h-4"
-              />
-              {{ expense['Payment Method'] }}
-            </div>
-          </div>
-          
-          <div class="date-time">
-            {{ formatDateTime(expense.Time) }}
-          </div>
-          
-          <!-- Contents Preview -->
-          <div v-if="expense.Contents" class="contents-preview">
-            {{ expense.Contents.length > 50 ? expense.Contents.substring(0, 50) + '...' : expense.Contents }}
-          </div>
-        </div>
-
-        <!-- Quick Actions -->
-        <div class="expense-actions">
-          <button
-            @click.stop="$emit('expense-clicked', expense)"
-            class="action-btn"
-            title="View Details"
-          >
-            <Icon name="mdi:eye" class="w-4 h-4" />
-          </button>
-          
-          <button
-            v-if="expense.Receipt && expense.Receipt.length > 0"
-            @click.stop="openReceipt(expense.Receipt[0])"
-            class="action-btn"
-            title="View Receipt"
-          >
-            <Icon name="mdi:image" class="w-4 h-4" />
-          </button>
-        </div>
-      </div>
-    </div>
+        </v-card>
+      </v-col>
+    </v-row>
 
     <!-- Loading More Indicator -->
-    <div v-if="isLoadingMore" class="flex justify-center py-6">
-      <span class="loading loading-spinner loading-md"></span>
+    <div v-if="isLoadingMore" class="text-center py-6">
+      <v-progress-circular indeterminate color="primary" />
     </div>
 
     <!-- Empty State -->
-    <div v-if="expenses.length === 0" class="text-center py-12">
-      <Icon name="mdi:receipt" class="w-16 h-16 text-gray-400 mx-auto mb-4" />
-      <h3 class="text-lg font-medium text-gray-900 dark:text-white mb-2">
-        No expenses found
-      </h3>
-      <p class="text-gray-600 dark:text-gray-300">
-        No expenses match the current filters
-      </p>
-    </div>
+    <v-card v-if="expenses.length === 0" class="text-center py-12">
+      <v-card-text>
+        <v-icon size="64" color="grey-lighten-2" class="mb-4">mdi-receipt</v-icon>
+        <h3 class="text-h6 mb-2">No expenses found</h3>
+        <p class="text-body-2 text-grey-darken-1">
+          No expenses match the current filters
+        </p>
+      </v-card-text>
+    </v-card>
   </div>
 </template>
 
 <script setup lang="ts">
-import { computed, ref } from 'vue';
+import { computed } from 'vue';
 import type { Expense } from '@/utils/types';
 
 // Component imports
@@ -236,6 +275,25 @@ const formatDateTime = (dateString: string) => {
   }
 };
 
+const getCategoryColor = (category: string) => {
+  const categoryColors: Record<string, string> = {
+    'Food/Drinks': 'green',
+    'Shop': 'blue',
+    'Online': 'purple',
+    'Transportation': 'orange',
+    'Accommodation': 'teal',
+    'Entertainment': 'pink',
+    'Other': 'grey'
+  };
+  
+  return categoryColors[category] || 'grey';
+};
+
+const getContentsPreview = (expense: Expense) => {
+  const content = expense.Contents || '';
+  return content.length > 80 ? content.substring(0, 80) + '...' : content;
+};
+
 const openReceipt = (receipt: any) => {
   if (receipt.signedUrl) {
     window.open(receipt.signedUrl, '_blank');
@@ -245,94 +303,158 @@ const openReceipt = (receipt: any) => {
 
 <style scoped>
 .expense-list {
-  @apply w-full;
+  width: 100%;
+}
+
+.expense-grid {
+  margin: 0;
 }
 
 .expense-card {
-  @apply relative bg-white dark:bg-gray-800 rounded-lg shadow-sm border border-gray-200 dark:border-gray-700 overflow-hidden cursor-pointer transition-all duration-200 hover:shadow-md hover:border-gray-300 dark:hover:border-gray-600;
+  position: relative;
+  cursor: pointer;
+  transition: all 0.3s ease;
+  height: 100%;
 }
 
-.expense-card.selected {
-  @apply border-primary bg-primary/5 dark:bg-primary/10;
+.expense-card:hover {
+  transform: translateY(-2px);
+  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15) !important;
 }
 
-.receipt-container {
-  @apply relative h-32 bg-gray-50 dark:bg-gray-700;
+.selected-card {
+  border: 2px solid rgb(var(--v-theme-primary)) !important;
+  background-color: rgba(var(--v-theme-primary), 0.05);
 }
 
-.receipt-image-wrapper {
-  @apply relative w-full h-full overflow-hidden;
+.card-checkbox {
+  position: absolute;
+  top: 8px;
+  left: 8px;
+  z-index: 2;
+  background: rgba(255, 255, 255, 0.9);
+  border-radius: 4px;
+  padding: 2px;
+}
+
+.receipt-section {
+  position: relative;
+  height: 140px;
+  background: #f5f5f5;
+  overflow: hidden;
+}
+
+.receipt-image-container {
+  width: 100%;
+  height: 100%;
+  position: relative;
 }
 
 .receipt-image {
-  @apply w-full h-full object-cover;
+  width: 100%;
+  height: 100%;
+  object-fit: cover;
 }
 
-.receipt-count-badge {
-  @apply absolute top-2 right-2 bg-black/70 text-white text-xs px-2 py-1 rounded-full;
+.receipt-count-chip {
+  position: absolute;
+  top: 8px;
+  right: 8px;
 }
 
 .no-receipt-placeholder {
-  @apply w-full h-full flex flex-col items-center justify-center text-gray-400;
+  width: 100%;
+  height: 100%;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  color: #9e9e9e;
 }
 
-.expense-details {
-  @apply p-4 space-y-2;
+.merchant-name {
+  font-weight: 600;
+  font-size: 1rem;
+  line-height: 1.2;
+  margin-bottom: 8px;
+  color: rgb(var(--v-theme-on-surface));
 }
 
-.establishment-name {
-  @apply font-semibold text-gray-900 dark:text-white truncate;
+.price-display {
+  font-size: 1.25rem;
+  font-weight: 700;
+  color: rgb(var(--v-theme-primary));
+  margin-bottom: 8px;
 }
 
-.price-amount {
-  @apply text-xl font-bold text-primary;
+.converted-price {
+  font-size: 0.875rem;
+  font-weight: 400;
+  color: rgb(var(--v-theme-on-surface-variant));
+  margin-left: 4px;
 }
 
-.expense-meta {
-  @apply flex items-center justify-between gap-2;
+.date-display {
+  display: flex;
+  align-items: center;
+  font-size: 0.875rem;
+  color: rgb(var(--v-theme-on-surface-variant));
+  margin-bottom: 4px;
 }
 
-.category-badge {
-  @apply px-2 py-1 rounded-full text-xs font-medium;
-}
-
-.category-food\/drinks {
-  @apply bg-green-100 text-green-800 dark:bg-green-900 dark:text-green-200;
-}
-
-.category-shop {
-  @apply bg-blue-100 text-blue-800 dark:bg-blue-900 dark:text-blue-200;
-}
-
-.category-online {
-  @apply bg-purple-100 text-purple-800 dark:bg-purple-900 dark:text-purple-200;
-}
-
-.category-other {
-  @apply bg-gray-100 text-gray-800 dark:bg-gray-700 dark:text-gray-200;
-}
-
-.payment-method {
-  @apply flex items-center gap-1 text-sm text-gray-600 dark:text-gray-300;
-}
-
-.date-time {
-  @apply text-sm text-gray-500 dark:text-gray-400;
+.payer-display {
+  display: flex;
+  align-items: center;
+  font-size: 0.875rem;
+  color: rgb(var(--v-theme-on-surface-variant));
+  margin-bottom: 8px;
 }
 
 .contents-preview {
-  @apply text-sm text-gray-600 dark:text-gray-300 line-clamp-2;
+  font-size: 0.875rem;
+  color: rgb(var(--v-theme-on-surface-variant));
+  line-height: 1.3;
+  overflow: hidden;
+  display: -webkit-box;
+  -webkit-line-clamp: 2;
+  -webkit-box-orient: vertical;
 }
 
-.expense-actions {
-  @apply absolute top-3 right-3 flex gap-1 opacity-0 transition-opacity duration-200;
+.card-actions {
+  position: absolute;
+  top: 8px;
+  right: 8px;
+  z-index: 2;
+  display: flex;
+  gap: 4px;
+  opacity: 0;
+  transition: opacity 0.3s ease;
 }
 
-.expense-card:hover .expense-actions {
-  @apply opacity-100;
+.expense-card:hover .card-actions {
+  opacity: 1;
 }
 
-.action-btn {
-  @apply p-1.5 bg-white dark:bg-gray-800 rounded-full shadow-sm border border-gray-200 dark:border-gray-600 hover:bg-gray-50 dark:hover:bg-gray-700 transition-colors;
+.action-button {
+  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
+}
+
+/* Responsive adjustments */
+@media (max-width: 600px) {
+  .expense-grid :deep(.v-col) {
+    padding: 6px;
+  }
+  
+  .receipt-section {
+    height: 120px;
+  }
+  
+  .merchant-name {
+    font-size: 0.9rem;
+  }
+  
+  .price-display {
+    font-size: 1.1rem;
+  }
 }
 </style>