diff --git a/cmd/budgeteer/main.go b/cmd/budgeteer/main.go
index af132b3..71b6eb1 100644
--- a/cmd/budgeteer/main.go
+++ b/cmd/budgeteer/main.go
@@ -1,6 +1,7 @@
 package main
 
 import (
+	"fmt"
 	"io/fs"
 	"log"
 	"net/http"
@@ -29,11 +30,14 @@ func main() {
 		panic("couldn't open static files")
 	}
 
+	tokenVerifier, err := jwt.NewTokenVerifier(cfg.SessionSecret)
+	if err != nil {
+		panic(fmt.Errorf("couldn't create token verifier: %w", err))
+	}
+
 	handler := &server.Handler{
-		Service: queries,
-		TokenVerifier: &jwt.TokenVerifier{
-			Secret: cfg.SessionSecret,
-		},
+		Service:             queries,
+		TokenVerifier:       tokenVerifier,
 		CredentialsVerifier: &bcrypt.Verifier{},
 		StaticFS:            http.FS(static),
 	}
diff --git a/jwt/login.go b/jwt/login.go
index bbb44c8..190ebd7 100644
--- a/jwt/login.go
+++ b/jwt/login.go
@@ -12,7 +12,19 @@ import (
 
 // TokenVerifier verifies Tokens.
 type TokenVerifier struct {
-	Secret string
+	secret string
+}
+
+var ErrEmptySecret = fmt.Errorf("secret is required")
+
+func NewTokenVerifier(secret string) (*TokenVerifier, error) {
+	if secret == "" {
+		return nil, ErrEmptySecret
+	}
+
+	return &TokenVerifier{
+		secret: secret,
+	}, nil
 }
 
 // Token contains everything to authenticate a user.
@@ -29,6 +41,10 @@ const (
 
 // CreateToken creates a new token from username and name.
 func (tv *TokenVerifier) CreateToken(user *postgres.User) (string, error) {
+	if tv.secret == "" {
+		return "", ErrEmptySecret
+	}
+
 	token := jwt.NewWithClaims(jwt.SigningMethodHS256, jwt.MapClaims{
 		"usr":  user.Email,
 		"name": user.Name,
@@ -37,7 +53,7 @@ func (tv *TokenVerifier) CreateToken(user *postgres.User) (string, error) {
 	})
 
 	// Generate encoded token and send it as response.
-	t, err := token.SignedString([]byte(tv.Secret))
+	t, err := token.SignedString([]byte(tv.secret))
 	if err != nil {
 		return "", fmt.Errorf("create token: %w", err)
 	}
@@ -53,11 +69,15 @@ var (
 
 // VerifyToken verifys a given string-token.
 func (tv *TokenVerifier) VerifyToken(tokenString string) (budgeteer.Token, error) { //nolint:ireturn
+	if tv.secret == "" {
+		return nil, ErrEmptySecret
+	}
+
 	token, err := jwt.Parse(tokenString, func(token *jwt.Token) (interface{}, error) {
 		if _, ok := token.Method.(*jwt.SigningMethodHMAC); !ok {
 			return nil, fmt.Errorf("method '%v': %w", token.Header["alg"], ErrUnexpectedSigningMethod)
 		}
-		return []byte(tv.Secret), nil
+		return []byte(tv.secret), nil
 	})
 	if err != nil {
 		return nil, fmt.Errorf("parse jwt: %w", err)
diff --git a/server/account_test.go b/server/account_test.go
index 1af33c1..061b1bd 100644
--- a/server/account_test.go
+++ b/server/account_test.go
@@ -28,11 +28,10 @@ func TestRegisterUser(t *testing.T) { //nolint:funlen
 		return
 	}
 
+	tokenVerifier, _ := jwt.NewTokenVerifier("this_is_my_demo_secret_for_unit_tests")
 	h := Handler{
-		Service: database,
-		TokenVerifier: &jwt.TokenVerifier{
-			Secret: "this_is_my_demo_secret_for_unit_tests",
-		},
+		Service:             database,
+		TokenVerifier:       tokenVerifier,
 		CredentialsVerifier: &bcrypt.Verifier{},
 	}
 
diff --git a/web/src/components/Button.vue b/web/src/components/Button.vue
index c7c16a0..9491068 100644
--- a/web/src/components/Button.vue
+++ b/web/src/components/Button.vue
@@ -3,7 +3,7 @@
 
 <template>
     <button
-        class="px-4 py-2 text-base font-medium rounded-md shadow-sm focus:outline-none focus:ring-2"
+        class="px-4 rounded-md shadow-sm focus:outline-none focus:ring-2"
     >
         <slot></slot>
     </button>
diff --git a/web/src/components/Card.vue b/web/src/components/Card.vue
index cfd4a15..0d42921 100644
--- a/web/src/components/Card.vue
+++ b/web/src/components/Card.vue
@@ -2,7 +2,7 @@
 </script>
 
 <template>
-    <div class="flex flex-row items-center bg-gray-300 h-32 rounded-lg">
+    <div class="flex flex-row items-center bg-gray-300 rounded-lg">
         <slot></slot>
     </div>
 </template>
\ No newline at end of file
diff --git a/web/src/components/Modal.vue b/web/src/components/Modal.vue
index 7452479..faea3ca 100644
--- a/web/src/components/Modal.vue
+++ b/web/src/components/Modal.vue
@@ -3,7 +3,7 @@ import Card from '../components/Card.vue';
 import { ref } from "vue";
 
 const props = defineProps<{
-    buttonText: string,
+    buttonText?: string,
 }>();
 
 const emit = defineEmits<{
diff --git a/web/src/components/TransactionInputRow.vue b/web/src/components/TransactionInputRow.vue
index 9eb3da8..52e20c0 100644
--- a/web/src/components/TransactionInputRow.vue
+++ b/web/src/components/TransactionInputRow.vue
@@ -3,6 +3,7 @@ import { computed, ref } from "vue";
 import Autocomplete from '../components/Autocomplete.vue'
 import { Transaction, useTransactionsStore } from "../stores/transactions";
 import DateInput from "./DateInput.vue";
+import Button from "./Button.vue";
 
 const props = defineProps<{
     budgetid: string
@@ -51,28 +52,31 @@ function saveTransaction(e: MouseEvent) {
 
 <template>
     <tr>
-        <td style="width: 90px;" class="text-sm">
+        <label class="md:hidden">Date</label>
+        <td class="text-sm">
             <DateInput class="border-b-2 border-black" v-model="TX.Date" />
         </td>
-        <td style="max-width: 150px;">
+        <label class="md:hidden">Payee</label>
+        <td>
             <Autocomplete v-model:text="TX.Payee" v-model:id="TX.PayeeID" v-model:type="payeeType" model="payees" />
         </td>
-        <td style="max-width: 200px;">
+        <label class="md:hidden">Category</label>
+        <td>
             <Autocomplete v-model:text="TX.Category" v-model:id="TX.CategoryID" model="categories" />
         </td>
-        <td>
+        <td class="col-span-2">
             <input class="block w-full border-b-2 border-black" type="text" v-model="TX.Memo" />
         </td>
-        <td style="width: 80px;" class="text-right">
+        <label class="md:hidden">Amount</label>
+        <td class="text-right">
             <input
                 class="text-right block w-full border-b-2 border-black"
                 type="currency"
                 v-model="TX.Amount"
             />
         </td>
-        <td style="width: 20px;">
-            <input type="submit" @click="saveTransaction" value="Save" />
+        <td class="hidden md:table-cell">
+            <Button class="bg-blue-500" @click="saveTransaction">Save</Button>
         </td>
-        <td style="width: 20px;"></td>
     </tr>
 </template>
\ No newline at end of file
diff --git a/web/src/components/TransactionRow.vue b/web/src/components/TransactionRow.vue
index b182273..d5f2fff 100644
--- a/web/src/components/TransactionRow.vue
+++ b/web/src/components/TransactionRow.vue
@@ -5,6 +5,7 @@ import { useTransactionsStore } from "../stores/transactions";
 import Currency from "./Currency.vue";
 import TransactionEditRow from "./TransactionEditRow.vue";
 import { formatDate } from "../date";
+import { useAccountStore } from "../stores/budget-account";
 
 const props = defineProps<{
     transactionid: string,
@@ -18,17 +19,43 @@ const Reconciling = computed(() => useTransactionsStore().Reconciling);
 
 const transactionsStore = useTransactionsStore();
 const TX = transactionsStore.Transactions.get(props.transactionid)!;
+
+function dateChanged() {
+    const currentAccount = useAccountStore().CurrentAccount;
+    if (currentAccount == null)
+        return true;
+    const transactionIndex = currentAccount.Transactions.indexOf(props.transactionid);
+    if(transactionIndex<=0)
+        return true;
+
+    const previousTransactionId = currentAccount.Transactions[transactionIndex-1];
+    const previousTransaction = transactionsStore.Transactions.get(previousTransactionId);
+    return TX.Date.getTime() != previousTransaction?.Date.getTime();
+}
+
+function getStatusSymbol() {
+    if(TX.Status == "Reconciled")
+        return "✔";
+
+    if(TX.Status == "Uncleared")
+        return "*";
+
+    return "✘";
+}
 </script>
 
 <template>
+    <tr v-if="dateChanged()" class="table-row md:hidden">
+        <td class="bg-gray-200 rounded-lg p-2" colspan="5">{{ formatDate(TX.Date) }}</td>
+    </tr>
     <tr
         v-if="!edit"
         class="{{new Date(TX.Date) > new Date() ? 'future' : ''}}"
-        :class="[index % 6 < 3 ? 'bg-gray-300' : 'bg-gray-100']"
+        :class="[index % 6 < 3 ? 'md:bg-gray-300' : 'md:bg-gray-100']"
     >
         <!--:class="[index % 6 < 3 ? index % 6 === 1 ? 'bg-gray-400' : 'bg-gray-300' : index % 6 !== 4 ? 'bg-gray-100' : '']">-->
-        <td>{{ formatDate(TX.Date) }}</td>
-        <td>{{ TX.TransferAccount ? "Transfer : " + TX.TransferAccount : TX.Payee }}</td>
+        <td class="hidden md:block">{{ formatDate(TX.Date) }}</td>
+        <td class="pl-2 md:pl-0">{{ TX.TransferAccount ? "Transfer : " + TX.TransferAccount : TX.Payee }}</td>
         <td>{{ TX.CategoryGroup ? TX.CategoryGroup + " : " + TX.Category : "" }}</td>
         <td>
             <a
@@ -38,13 +65,11 @@ const TX = transactionsStore.Transactions.get(props.transactionid)!;
         <td>
             <Currency class="block" :value="TX.Amount" />
         </td>
-        <td>{{ TX.Status == "Reconciled" ? "✔" : (TX.Status == "Uncleared" ? "" : "*") }}</td>
         <td class="text-right">
             {{ TX.GroupID ? "☀" : "" }}
+            {{ getStatusSymbol() }}
             <a @click="edit = true;">✎</a>
-        </td>
-        <td v-if="Reconciling && TX.Status != 'Reconciled'">
-            <input type="checkbox" v-model="TX.Reconciled" />
+            <input v-if="Reconciling && TX.Status != 'Reconciled'" type="checkbox" v-model="TX.Reconciled" />
         </td>
     </tr>
     <TransactionEditRow v-if="edit" :transactionid="TX.ID" @save="edit = false" />
diff --git a/web/src/pages/Account.vue b/web/src/pages/Account.vue
index e79730a..7d27884 100644
--- a/web/src/pages/Account.vue
+++ b/web/src/pages/Account.vue
@@ -7,6 +7,7 @@ import { useAccountStore } from "../stores/budget-account";
 import EditAccount from "../dialogs/EditAccount.vue";
 import Button from "../components/Button.vue";
 import { useTransactionsStore } from "../stores/transactions";
+import Modal from "../components/Modal.vue";
 
 defineProps<{
     budgetid: string
@@ -47,18 +48,18 @@ function createReconcilationTransaction() {
         </h1>
 
         <div class="text-right">
-            <span class="border-2 rounded-lg p-1">
+            <span class="border-2 rounded-lg p-1 whitespace-nowrap">
                 Working:
                 <Currency :value="accounts.CurrentAccount?.WorkingBalance" />
             </span>
 
-            <span class="border-2 rounded-lg p-1 ml-2">
+            <span class="border-2 rounded-lg p-1 ml-2 whitespace-nowrap">
                 Cleared:
                 <Currency :value="accounts.CurrentAccount?.ClearedBalance" />
             </span>
 
             <span
-                class="border-2 border-blue-500 rounded-lg bg-blue-500 ml-2 p-1"
+                class="border-2 border-blue-500 rounded-lg bg-blue-500 ml-2 p-1 whitespace-nowrap"
                 v-if="!transactions.Reconciling"
                 @click="transactions.Reconciling = true"
             >
@@ -70,34 +71,32 @@ function createReconcilationTransaction() {
         <span v-if="transactions.Reconciling" class="border-2 block bg-gray-200 rounded-lg p-2">
             Is
             <Currency :value="transactions.ReconcilingBalance" />your current balance?
-            <Button class="bg-blue-500 mx-3" @click="submitReconcilation">Yes!</Button>
+            <Button class="bg-blue-500 mx-3 py-2" @click="submitReconcilation">Yes!</Button>
             <br />No, it's:
             <input class="text-right" type="number" v-model="TargetReconcilingBalance" />
             Difference:
             <Currency :value="transactions.ReconcilingBalance - TargetReconcilingBalance" />
             <Button
-                class="bg-orange-500 mx-3"
+                class="bg-orange-500 mx-3 py-2"
                 v-if="Math.abs(transactions.ReconcilingBalance - TargetReconcilingBalance) > 0.01"
                 @click="createReconcilationTransaction"
             >Create reconciling Transaction</Button>
-            <Button class="bg-red-500 mx-3" @click="cancelReconcilation">Cancel</Button>
+            <Button class="bg-red-500 mx-3 py-2" @click="cancelReconcilation">Cancel</Button>
         </span>
     </div>
 
     <table>
         <tr class="font-bold">
-            <td style="width: 90px;">Date</td>
+            <td class="hidden md:block" style="width: 90px;">Date</td>
             <td style="max-width: 150px;">Payee</td>
             <td style="max-width: 200px;">Category</td>
             <td>Memo</td>
             <td class="text-right">Amount</td>
-            <td style="width: 20px;"></td>
-            <td style="width: 40px;"></td>
-            <td style="width: 20px;" v-if="transactions.Reconciling">
-                <input type="checkbox" @input="setReconciled" />
+            <td style="width: 80px;">
+                <input v-if="transactions.Reconciling" type="checkbox" @input="setReconciled" />
             </td>
         </tr>
-        <TransactionInputRow :budgetid="budgetid" :accountid="accountid" />
+        <TransactionInputRow class="hidden md:table-row" :budgetid="budgetid" :accountid="accountid" />
         <TransactionRow
             v-for="(transaction, index) in transactions.TransactionsList"
             :key="transaction.ID"
@@ -105,6 +104,14 @@ function createReconcilationTransaction() {
             :index="index"
         />
     </table>
+    <div class="md:hidden">
+        <Modal>
+            <template v-slot:placeholder>
+                <Button class="fixed right-4 bottom-4 font-bold text-lg bg-blue-500 py-2">+</Button>
+            </template>
+            <TransactionInputRow class="grid grid-cols-2" :budgetid="budgetid" :accountid="accountid" />
+        </Modal>
+    </div>
 </template>
 
 <style>
diff --git a/web/src/pages/Budgeting.vue b/web/src/pages/Budgeting.vue
index 3ffb2c1..0203b8a 100644
--- a/web/src/pages/Budgeting.vue
+++ b/web/src/pages/Budgeting.vue
@@ -17,7 +17,7 @@ const CurrentBudgetID = computed(() => budgetsStore.CurrentBudgetID);
 const accountStore = useAccountStore();
 const categoriesForMonth = accountStore.CategoriesForMonthAndGroup;
 
-function GetCategories(group : string) {
+function GetCategories(group: string) {
     return [...categoriesForMonth(selected.value.Year, selected.value.Month, group)];
 };
 
@@ -28,20 +28,20 @@ const GroupsForMonth = computed(() => {
 
 
 const previous = computed(() => ({
-        Year: new Date(selected.value.Year, selected.value.Month - 1, 1).getFullYear(),
-        Month: new Date(selected.value.Year, selected.value.Month - 1, 1).getMonth(),
+    Year: new Date(selected.value.Year, selected.value.Month - 1, 1).getFullYear(),
+    Month: new Date(selected.value.Year, selected.value.Month - 1, 1).getMonth(),
 }));
 const current = computed(() => ({
-        Year: new Date().getFullYear(),
-        Month: new Date().getMonth(),
+    Year: new Date().getFullYear(),
+    Month: new Date().getMonth(),
 }));
 const selected = computed(() => ({
-        Year: Number(props.year) ?? current.value.Year,
-        Month: Number(props.month ?? current.value.Month)
+    Year: Number(props.year) ?? current.value.Year,
+    Month: Number(props.month ?? current.value.Month)
 }));
 const next = computed(() => ({
-        Year: new Date(selected.value.Year, Number(props.month) + 1, 1).getFullYear(),
-        Month: new Date(selected.value.Year, Number(props.month) + 1, 1).getMonth(),
+    Year: new Date(selected.value.Year, Number(props.month) + 1, 1).getFullYear(),
+    Month: new Date(selected.value.Year, Number(props.month) + 1, 1).getMonth(),
 }));
 
 watchEffect(() => {
@@ -56,12 +56,12 @@ onMounted(() => {
 
 const expandedGroups = ref<Map<string, boolean>>(new Map<string, boolean>())
 
-function toggleGroup(group : {Name : string, Expand: boolean}) {
+function toggleGroup(group: { Name: string, Expand: boolean }) {
     console.log(expandedGroups.value);
     expandedGroups.value.set(group.Name, !(expandedGroups.value.get(group.Name) ?? group.Expand))
 }
 
-function getGroupState(group : {Name : string, Expand: boolean}) : boolean {
+function getGroupState(group: { Name: string, Expand: boolean }): boolean {
     return expandedGroups.value.get(group.Name) ?? group.Expand;
 }
 </script>
@@ -71,43 +71,32 @@ function getGroupState(group : {Name : string, Expand: boolean}) : boolean {
     <div>
         <router-link
             :to="'/budget/' + CurrentBudgetID + '/budgeting/' + previous.Year + '/' + previous.Month"
-        >Previous Month</router-link>-
+        >&lt;&lt;</router-link>&nbsp;
         <router-link
             :to="'/budget/' + CurrentBudgetID + '/budgeting/' + current.Year + '/' + current.Month"
-        >Current Month</router-link>-
+        >Current Month</router-link>&nbsp;
         <router-link
             :to="'/budget/' + CurrentBudgetID + '/budgeting/' + next.Year + '/' + next.Month"
-        >Next Month</router-link>
+        >&gt;&gt;</router-link>
+    </div>
+    <div class="container col-lg-12 grid grid-cols-2 sm:grid-cols-4 lg:grid-cols-5" id="content">
+        <span class="hidden sm:block"></span>
+        <span class="hidden lg:block text-right">Leftover</span>
+        <span class="hidden sm:block text-right">Assigned</span>
+        <span class="hidden sm:block text-right">Activity</span>
+        <span class="hidden sm:block text-right">Available</span>
+        <template v-for="group in GroupsForMonth">
+            <a
+                class="text-lg font-bold col-span-2 sm:col-span-4 lg:col-span-5"
+                @click="toggleGroup(group)"
+            >{{ (getGroupState(group) ? "−" : "+") + " " + group.Name }}</a>
+            <template v-for="category in GetCategories(group.Name)" v-if="getGroupState(group)">
+                <span class="whitespace-nowrap overflow-hidden">{{ category.Name }}</span>
+                <Currency :value="category.AvailableLastMonth" class="hidden lg:block" />
+                <Currency :value="category.Assigned" class="hidden sm:block" />
+                <Currency :value="category.Activity" class="hidden sm:block" />
+                <Currency :value="category.Available" />
+            </template>
+        </template>
     </div>
-    <table class="container col-lg-12" id="content">
-        <tr>
-            <th>Category</th>
-            <th></th>
-            <th></th>
-            <th>Leftover</th>
-            <th>Assigned</th>
-            <th>Activity</th>
-            <th>Available</th>
-        </tr>
-        <tbody v-for="group in GroupsForMonth">
-            <a class="text-lg font-bold" @click="toggleGroup(group)">{{ (getGroupState(group) ? "−" : "+") + " " + group.Name }}</a>
-            <tr v-for="category in GetCategories(group.Name)" v-if="getGroupState(group)">
-                <td>{{ category.Name }}</td>
-                <td></td>
-                <td></td>
-                <td class="text-right">
-                    <Currency :value="category.AvailableLastMonth" />
-                </td>
-                <td class="text-right">
-                    <Currency :value="category.Assigned" />
-                </td>
-                <td class="text-right">
-                    <Currency :value="category.Activity" />
-                </td>
-                <td class="text-right">
-                    <Currency :value="category.Available" />
-                </td>
-            </tr>
-        </tbody>
-    </table>
 </template>
diff --git a/web/src/pages/Settings.vue b/web/src/pages/Settings.vue
index fc41a14..d63382b 100644
--- a/web/src/pages/Settings.vue
+++ b/web/src/pages/Settings.vue
@@ -82,42 +82,40 @@ function ynabExport() {
                 <h2 class="text-lg font-bold">Clear Budget</h2>
                 <p>This removes transactions and assignments to start from scratch. Accounts and categories are kept. Not undoable!</p>
 
-                <Button class="bg-red-500" @click="clearBudget">Clear budget</Button>
+                <Button class="bg-red-500 py-2" @click="clearBudget">Clear budget</Button>
             </Card>
             <Card class="flex-col p-3">
                 <h2 class="text-lg font-bold">Delete Budget</h2>
                 <p>This deletes the whole bugdet including all transactions, assignments, accounts and categories. Not undoable!</p>
-                <Button class="bg-red-500" @click="deleteBudget">Delete budget</button>
+                <Button class="bg-red-500 py-2" @click="deleteBudget">Delete budget</button>
             </Card>
             <Card class="flex-col p-3">
                 <h2 class="text-lg font-bold">Fix all historic negative category-balances</h2>
                 <p>This restores YNABs functionality, that would substract any overspent categories' balances from next months inflows.</p>
-                <Button class="bg-orange-500" @click="cleanNegative">Fix negative</button>
+                <Button class="bg-orange-500 py-2" @click="cleanNegative">Fix negative</button>
             </Card>
             <Card class="flex-col p-3">
                 <h2 class="text-lg font-bold">Import YNAB Budget</h2>
                 
-                <div class="flex flex-row">
-                    <div>
-                        <label for="transactions_file">
-                            Transaktionen:
-                            <input type="file" @change="gotTransactions" accept="text/*" />
-                        </label>
-                        <br />
-                        <label for="assignments_file">
-                            Budget:
-                            <input type="file" @change="gotAssignments" accept="text/*" />
-                        </label>
-                    </div>
-
-                    <Button class="bg-blue-500" :disabled="filesIncomplete" @click="ynabImport">Importieren</Button>
+                <div>
+                    <label for="transactions_file">
+                        Transaktionen:
+                        <input type="file" @change="gotTransactions" accept="text/*" />
+                    </label>
+                    <br />
+                    <label for="assignments_file">
+                        Budget:
+                        <input type="file" @change="gotAssignments" accept="text/*" />
+                    </label>
                 </div>
+
+                <Button class="bg-blue-500 py-2" :disabled="filesIncomplete" @click="ynabImport">Importieren</Button>
             </Card>
             <Card class="flex-col p-3">
                 <h2 class="text-lg font-bold">Export as YNAB TSV</h2>
 
                 <div class="flex flex-row">
-                    <Button class="bg-blue-500" @click="ynabExport">Export</Button>
+                    <Button class="bg-blue-500 py-2" @click="ynabExport">Export</Button>
                 </div>
             </Card>
         </div>