diff --git a/doc/prompt.txt b/doc/prompt.txt
index 4f941dd..48e8936 100644
--- a/doc/prompt.txt
+++ b/doc/prompt.txt
@@ -19,11 +19,11 @@ Ciele:
    Pre položku s grams: macro = grams/100 * macro_100.
    kcal = protein*4 + carbs*4 + fat*9. (Sugar je podmnožina carbs, neráta sa zvlášť do kcal.)
 5) Navrhni štruktúru projektu:
-   - /src/router
-   - /src/views
-   - /src/components
-   - /src/stores (Pinia)
-   - /src/utils (nutrition math)
+   - frontend/src/router
+   - frontend/src/views
+   - frontend/src/components
+   - frontend/src/stores (Pinia)
+   - frontend/src/utils (nutrition math)
 6) Daj konkrétny návrh názvov súborov a exportov + ukážku kódu:
    - router index.ts s routes + guard
    - auth store (token/user)
@@ -34,6 +34,6 @@ Preferencie:
 - Vue 3 + Composition API + TypeScript
 - Pinia
 - Vue Router
-- UI môže byť čisté bez knižnice, alebo minimalisticky (napr. jednoduché CSS/Tailwind – rozhodni a drž konzistentne).
+- UI môže byť čisté bez knižnice, alebo minimalisticky (napr. jednoduché CSS – rozhodni a drž konzistentne a pokracuj v pouzivani suboru frontend/src/assets/css/style.css).
 - Použi slovenské názvy v UI (Raňajky, Obed, Večera), ale kľúče v kóde nech sú anglické (breakfast/lunch/dinner).
 Výstup: konkrétny návrh + ukážky kódu, nie všeobecné rady.
diff --git a/frontend/package-lock.json b/frontend/package-lock.json
index 8d7dac2..ba0309e 100644
--- a/frontend/package-lock.json
+++ b/frontend/package-lock.json
@@ -11,6 +11,7 @@
         "@fortawesome/fontawesome-svg-core": "^7.2.0",
         "@fortawesome/free-solid-svg-icons": "^7.2.0",
         "@fortawesome/vue-fontawesome": "^3.1.3",
+        "pinia": "^3.0.4",
         "vue": "^3.5.27",
         "vue-i18n": "^11.2.8",
         "vue-router": "^5.0.1"
@@ -4251,6 +4252,66 @@
         "node": ">=0.10"
       }
     },
+    "node_modules/pinia": {
+      "version": "3.0.4",
+      "resolved": "https://registry.npmjs.org/pinia/-/pinia-3.0.4.tgz",
+      "integrity": "sha512-l7pqLUFTI/+ESXn6k3nu30ZIzW5E2WZF/LaHJEpoq6ElcLD+wduZoB2kBN19du6K/4FDpPMazY2wJr+IndBtQw==",
+      "license": "MIT",
+      "dependencies": {
+        "@vue/devtools-api": "^7.7.7"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/posva"
+      },
+      "peerDependencies": {
+        "typescript": ">=4.5.0",
+        "vue": "^3.5.11"
+      },
+      "peerDependenciesMeta": {
+        "typescript": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/pinia/node_modules/@vue/devtools-api": {
+      "version": "7.7.9",
+      "resolved": "https://registry.npmjs.org/@vue/devtools-api/-/devtools-api-7.7.9.tgz",
+      "integrity": "sha512-kIE8wvwlcZ6TJTbNeU2HQNtaxLx3a84aotTITUuL/4bzfPxzajGBOoqjMhwZJ8L9qFYDU/lAYMEEm11dnZOD6g==",
+      "license": "MIT",
+      "dependencies": {
+        "@vue/devtools-kit": "^7.7.9"
+      }
+    },
+    "node_modules/pinia/node_modules/@vue/devtools-kit": {
+      "version": "7.7.9",
+      "resolved": "https://registry.npmjs.org/@vue/devtools-kit/-/devtools-kit-7.7.9.tgz",
+      "integrity": "sha512-PyQ6odHSgiDVd4hnTP+aDk2X4gl2HmLDfiyEnn3/oV+ckFDuswRs4IbBT7vacMuGdwY/XemxBoh302ctbsptuA==",
+      "license": "MIT",
+      "dependencies": {
+        "@vue/devtools-shared": "^7.7.9",
+        "birpc": "^2.3.0",
+        "hookable": "^5.5.3",
+        "mitt": "^3.0.1",
+        "perfect-debounce": "^1.0.0",
+        "speakingurl": "^14.0.1",
+        "superjson": "^2.2.2"
+      }
+    },
+    "node_modules/pinia/node_modules/@vue/devtools-shared": {
+      "version": "7.7.9",
+      "resolved": "https://registry.npmjs.org/@vue/devtools-shared/-/devtools-shared-7.7.9.tgz",
+      "integrity": "sha512-iWAb0v2WYf0QWmxCGy0seZNDPdO3Sp5+u78ORnyeonS6MT4PC7VPrryX2BpMJrwlDeaZ6BD4vP4XKjK0SZqaeA==",
+      "license": "MIT",
+      "dependencies": {
+        "rfdc": "^1.4.1"
+      }
+    },
+    "node_modules/pinia/node_modules/perfect-debounce": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/perfect-debounce/-/perfect-debounce-1.0.0.tgz",
+      "integrity": "sha512-xCy9V055GLEqoFaHoC1SoLIaLmWctgCUaBaWxDZ7/Zx4CTyX7cJQLJOok/orfjZAh9kEYpjJa4d0KcJmCbctZA==",
+      "license": "MIT"
+    },
     "node_modules/pkg-types": {
       "version": "2.3.0",
       "resolved": "https://registry.npmjs.org/pkg-types/-/pkg-types-2.3.0.tgz",
diff --git a/frontend/package.json b/frontend/package.json
index 23795d0..3ce370b 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -18,6 +18,7 @@
     "@fortawesome/fontawesome-svg-core": "^7.2.0",
     "@fortawesome/free-solid-svg-icons": "^7.2.0",
     "@fortawesome/vue-fontawesome": "^3.1.3",
+    "pinia": "^3.0.4",
     "vue": "^3.5.27",
     "vue-i18n": "^11.2.8",
     "vue-router": "^5.0.1"
diff --git a/frontend/src/assets/css/style.css b/frontend/src/assets/css/style.css
index fea548e..42d15e0 100644
--- a/frontend/src/assets/css/style.css
+++ b/frontend/src/assets/css/style.css
@@ -325,3 +325,350 @@ select {
     justify-content: center;
   }
 }
+
+.app-shell {
+  min-height: 100vh;
+  display: grid;
+  grid-template-columns: 250px 1fr;
+}
+
+.app-sidebar {
+  background: var(--color-surface);
+  border-right: 1px solid var(--color-border);
+  padding: var(--space-lg);
+  display: flex;
+  flex-direction: column;
+  gap: var(--space-lg);
+}
+
+.app-sidebar__brand {
+  display: flex;
+  align-items: center;
+  gap: var(--space-sm);
+  font-family: 'Space Grotesk', 'Segoe UI', sans-serif;
+  font-size: 1.1rem;
+}
+
+.app-sidebar__logo {
+  width: 36px;
+  height: 36px;
+}
+
+.app-sidebar__nav {
+  display: flex;
+  flex-direction: column;
+  gap: 0.45rem;
+}
+
+.app-nav-link {
+  text-decoration: none;
+  color: var(--color-text);
+  padding: 0.62rem 0.8rem;
+  border-radius: 0.7rem;
+  border: 1px solid transparent;
+  transition: all var(--transition-fast);
+}
+
+.app-nav-link.router-link-active {
+  border-color: var(--color-green);
+  background: color-mix(in srgb, var(--color-green) 16%, transparent);
+}
+
+.app-main {
+  display: flex;
+  flex-direction: column;
+  min-width: 0;
+}
+
+.app-topbar {
+  position: sticky;
+  top: 0;
+  z-index: 2;
+  background: color-mix(in srgb, var(--color-bg) 84%, transparent);
+  backdrop-filter: blur(8px);
+  border-bottom: 1px solid var(--color-border);
+  padding: var(--space-md) var(--space-xl);
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: var(--space-md);
+}
+
+.app-topbar h1 {
+  margin: 0;
+  font-size: 1.25rem;
+  font-family: 'Space Grotesk', 'Segoe UI', sans-serif;
+}
+
+.app-topbar__user {
+  font-size: var(--fs-sm);
+  color: var(--color-muted);
+}
+
+.app-content {
+  padding: var(--space-lg) var(--space-xl);
+}
+
+.page {
+  display: flex;
+  flex-direction: column;
+  gap: var(--space-lg);
+}
+
+.page-header {
+  display: flex;
+  gap: var(--space-md);
+  align-items: center;
+}
+
+.page-header--split {
+  justify-content: space-between;
+}
+
+.card {
+  background: var(--color-surface);
+  border: 1px solid var(--color-border);
+  border-radius: var(--radius-lg);
+  box-shadow: var(--shadow-soft);
+  padding: var(--space-lg);
+}
+
+.grid-three {
+  display: grid;
+  grid-template-columns: repeat(3, minmax(0, 1fr));
+  gap: var(--space-md);
+}
+
+.grid-two {
+  display: grid;
+  grid-template-columns: repeat(2, minmax(0, 1fr));
+  gap: var(--space-md);
+}
+
+.filter-control {
+  display: inline-flex;
+  align-items: center;
+  gap: var(--space-xs);
+}
+
+.filter-control span {
+  font-size: var(--fs-sm);
+  color: var(--color-muted);
+}
+
+.input-text,
+.input-number,
+.input-select,
+.input-date {
+  width: 100%;
+  border: 1px solid var(--color-border);
+  border-radius: var(--radius-md);
+  background: var(--color-surface);
+  color: var(--color-text);
+  padding: 0.64rem 0.72rem;
+}
+
+.btn {
+  border: 1px solid var(--color-border);
+  background: var(--color-surface);
+  color: var(--color-text);
+  border-radius: var(--radius-md);
+  padding: 0.62rem 0.86rem;
+  cursor: pointer;
+}
+
+.btn-primary {
+  border-color: var(--color-green);
+  background: var(--color-green);
+  color: var(--color-white);
+}
+
+.btn-danger {
+  border-color: color-mix(in srgb, var(--color-error) 24%, var(--color-border));
+  color: var(--color-error);
+}
+
+.form-inline {
+  display: grid;
+  grid-template-columns: 1.3fr 0.9fr auto;
+  gap: var(--space-sm);
+}
+
+.form-actions {
+  margin-top: var(--space-md);
+  display: flex;
+  gap: var(--space-sm);
+}
+
+.list {
+  display: flex;
+  flex-direction: column;
+  gap: var(--space-sm);
+}
+
+.list-row {
+  display: flex;
+  justify-content: space-between;
+  gap: var(--space-md);
+  border: 1px solid var(--color-border);
+  border-radius: var(--radius-md);
+  padding: 0.72rem 0.82rem;
+  color: inherit;
+  text-decoration: none;
+}
+
+.list-row p {
+  margin: 0.3rem 0 0;
+  font-size: var(--fs-sm);
+  color: var(--color-muted);
+}
+
+.list-row__meta {
+  align-self: center;
+  color: var(--color-muted);
+  font-size: var(--fs-sm);
+}
+
+.list-row__actions {
+  display: flex;
+  gap: var(--space-xs);
+}
+
+.empty-state {
+  margin: 0;
+  color: var(--color-muted);
+}
+
+.day-meal-card__header h3,
+.totals-card h3 {
+  margin-top: 0;
+}
+
+.day-meal-card__summary {
+  margin: var(--space-sm) 0 0;
+  font-size: var(--fs-sm);
+  color: var(--color-muted);
+}
+
+.totals-grid {
+  display: grid;
+  grid-template-columns: repeat(4, minmax(0, 1fr));
+  gap: var(--space-sm);
+}
+
+.totals-grid span {
+  display: block;
+  color: var(--color-muted);
+  font-size: var(--fs-sm);
+}
+
+.totals-grid strong {
+  font-size: 1.1rem;
+}
+
+.meal-items-editor h3,
+.ingredient-form h3 {
+  margin-top: 0;
+}
+
+.meal-items-editor__add-row {
+  display: grid;
+  grid-template-columns: 1fr 140px auto;
+  gap: var(--space-sm);
+  margin-bottom: var(--space-md);
+}
+
+.table {
+  width: 100%;
+  border-collapse: collapse;
+}
+
+.table th,
+.table td {
+  text-align: left;
+  border-bottom: 1px solid var(--color-border);
+  padding: 0.55rem 0.2rem;
+}
+
+.ingredient-form label {
+  display: flex;
+  flex-direction: column;
+  gap: 0.35rem;
+}
+
+.ingredient-form label span {
+  font-size: var(--fs-sm);
+  color: var(--color-muted);
+}
+
+.section-header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: var(--space-sm);
+  margin-bottom: var(--space-md);
+}
+
+.app-bottom-tabs {
+  display: none;
+}
+
+@media (max-width: 980px) {
+  .app-shell {
+    grid-template-columns: 1fr;
+    padding-bottom: 62px;
+  }
+
+  .desktop-nav {
+    display: none;
+  }
+
+  .app-content {
+    padding: var(--space-md);
+  }
+
+  .grid-three {
+    grid-template-columns: 1fr;
+  }
+
+  .totals-grid {
+    grid-template-columns: repeat(2, minmax(0, 1fr));
+  }
+
+  .grid-two {
+    grid-template-columns: 1fr;
+  }
+
+  .form-inline {
+    grid-template-columns: 1fr;
+  }
+
+  .meal-items-editor__add-row {
+    grid-template-columns: 1fr;
+  }
+
+  .app-bottom-tabs {
+    display: grid;
+    grid-template-columns: repeat(5, minmax(0, 1fr));
+    position: fixed;
+    left: 0;
+    right: 0;
+    bottom: 0;
+    background: var(--color-surface);
+    border-top: 1px solid var(--color-border);
+    z-index: 4;
+  }
+
+  .app-bottom-tabs__link {
+    text-align: center;
+    text-decoration: none;
+    color: var(--color-muted);
+    padding: 0.62rem 0.2rem;
+    font-size: 0.76rem;
+  }
+
+  .app-bottom-tabs__link.router-link-active {
+    color: var(--color-green);
+    font-weight: 700;
+  }
+}
diff --git a/frontend/src/components/ingredients/IngredientForm.vue b/frontend/src/components/ingredients/IngredientForm.vue
new file mode 100644
index 0000000..d37986e
--- /dev/null
+++ b/frontend/src/components/ingredients/IngredientForm.vue
@@ -0,0 +1,96 @@
+<script setup lang="ts">
+import { reactive, watch } from 'vue'
+import type { Ingredient } from '@/types/domain'
+
+const props = defineProps<{
+	initial?: Ingredient | null
+	submitLabel?: string
+}>()
+
+const emit = defineEmits<{
+	(event: 'save', payload: {
+		name: string
+		protein_g_100: number
+		carbs_g_100: number
+		sugar_g_100: number
+		fat_g_100: number
+		fiber_g_100: number
+		kcal_100: number
+	}): void
+	(event: 'cancel'): void
+}>()
+
+const form = reactive({
+	name: '',
+	protein_g_100: 0,
+	carbs_g_100: 0,
+	sugar_g_100: 0,
+	fat_g_100: 0,
+	fiber_g_100: 0,
+	kcal_100: 0,
+})
+
+const fillFromInitial = () => {
+	form.name = props.initial?.name ?? ''
+	form.protein_g_100 = props.initial?.protein_g_100 ?? 0
+	form.carbs_g_100 = props.initial?.carbs_g_100 ?? 0
+	form.sugar_g_100 = props.initial?.sugar_g_100 ?? 0
+	form.fat_g_100 = props.initial?.fat_g_100 ?? 0
+	form.fiber_g_100 = props.initial?.fiber_g_100 ?? 0
+	form.kcal_100 = props.initial?.kcal_100 ?? 0
+}
+
+watch(() => props.initial, fillFromInitial, { immediate: true })
+
+const onSubmit = () => {
+	emit('save', {
+		name: form.name.trim(),
+		protein_g_100: Number(form.protein_g_100),
+		carbs_g_100: Number(form.carbs_g_100),
+		sugar_g_100: Number(form.sugar_g_100),
+		fat_g_100: Number(form.fat_g_100),
+		fiber_g_100: Number(form.fiber_g_100),
+		kcal_100: Number(form.kcal_100),
+	})
+}
+</script>
+
+<template>
+	<form class="card ingredient-form" @submit.prevent="onSubmit">
+		<h3>{{ props.initial ? 'Upraviť surovinu' : 'Nová surovina' }}</h3>
+		<div class="grid-two">
+			<label>
+				<span>Názov</span>
+				<input v-model="form.name" class="input-text" type="text" required />
+			</label>
+			<label>
+				<span>Protein / 100 g</span>
+				<input v-model.number="form.protein_g_100" class="input-number" type="number" min="0" step="0.01" required />
+			</label>
+			<label>
+				<span>Carbs / 100 g</span>
+				<input v-model.number="form.carbs_g_100" class="input-number" type="number" min="0" step="0.01" required />
+			</label>
+			<label>
+				<span>Sugar / 100 g</span>
+				<input v-model.number="form.sugar_g_100" class="input-number" type="number" min="0" step="0.01" required />
+			</label>
+			<label>
+				<span>Fat / 100 g</span>
+				<input v-model.number="form.fat_g_100" class="input-number" type="number" min="0" step="0.01" required />
+			</label>
+			<label>
+				<span>Fiber / 100 g</span>
+				<input v-model.number="form.fiber_g_100" class="input-number" type="number" min="0" step="0.01" required />
+			</label>
+			<label>
+				<span>Kcal / 100 g (0 = auto)</span>
+				<input v-model.number="form.kcal_100" class="input-number" type="number" min="0" step="0.01" required />
+			</label>
+		</div>
+		<div class="form-actions">
+			<button class="btn btn-primary" type="submit">{{ props.submitLabel ?? 'Uložiť' }}</button>
+			<button class="btn" type="button" @click="emit('cancel')">Zrušiť</button>
+		</div>
+	</form>
+</template>
diff --git a/frontend/src/components/meals/MealItemsEditor.vue b/frontend/src/components/meals/MealItemsEditor.vue
new file mode 100644
index 0000000..495278b
--- /dev/null
+++ b/frontend/src/components/meals/MealItemsEditor.vue
@@ -0,0 +1,108 @@
+<script setup lang="ts">
+import { ref } from 'vue'
+import type { Ingredient, MealItem } from '@/types/domain'
+
+const props = defineProps<{
+	items: MealItem[]
+	ingredients: Ingredient[]
+}>()
+
+const emit = defineEmits<{
+	(event: 'add-item', payload: { ingredient_id: number; grams: number }): void
+	(event: 'update-item', payload: { meal_item_id: number; ingredient_id: number; grams: number; position: number }): void
+	(event: 'remove-item', mealItemId: number): void
+}>()
+
+const addIngredientId = ref<number | null>(null)
+const addGrams = ref<number>(100)
+
+const updateIngredient = (item: MealItem, ingredientId: number) => {
+	emit('update-item', {
+		meal_item_id: item.meal_item_id,
+		ingredient_id: ingredientId,
+		grams: item.grams,
+		position: item.position,
+	})
+}
+
+const updateGrams = (item: MealItem, grams: number) => {
+	emit('update-item', {
+		meal_item_id: item.meal_item_id,
+		ingredient_id: item.ingredient_id,
+		grams,
+		position: item.position,
+	})
+}
+
+const addItem = () => {
+	if (!addIngredientId.value || addGrams.value <= 0) {
+		return
+	}
+	emit('add-item', {
+		ingredient_id: addIngredientId.value,
+		grams: addGrams.value,
+	})
+	addGrams.value = 100
+}
+</script>
+
+<template>
+	<section class="card meal-items-editor">
+		<h3>Položky jedálnička</h3>
+
+		<div class="meal-items-editor__add-row">
+			<select v-model.number="addIngredientId" class="input-select">
+				<option :value="null">Vyber surovinu</option>
+				<option v-for="ingredient in props.ingredients" :key="ingredient.ingredient_id" :value="ingredient.ingredient_id">
+					{{ ingredient.name }}
+				</option>
+			</select>
+			<input v-model.number="addGrams" type="number" min="1" class="input-number" />
+			<button class="btn btn-primary" type="button" @click="addItem">Pridať</button>
+		</div>
+
+		<table class="table" v-if="props.items.length > 0">
+			<thead>
+				<tr>
+					<th>Surovina</th>
+					<th>Gramáž</th>
+					<th>Akcia</th>
+				</tr>
+			</thead>
+			<tbody>
+				<tr v-for="item in props.items" :key="item.meal_item_id">
+					<td>
+						<select
+							class="input-select"
+							:value="item.ingredient_id"
+							@change="updateIngredient(item, Number(($event.target as HTMLSelectElement).value))"
+						>
+							<option
+								v-for="ingredient in props.ingredients"
+								:key="ingredient.ingredient_id"
+								:value="ingredient.ingredient_id"
+							>
+								{{ ingredient.name }}
+							</option>
+						</select>
+					</td>
+					<td>
+						<input
+							class="input-number"
+							type="number"
+							min="1"
+							:value="item.grams"
+							@change="updateGrams(item, Number(($event.target as HTMLInputElement).value))"
+						/>
+					</td>
+					<td>
+						<button class="btn btn-danger" type="button" @click="emit('remove-item', item.meal_item_id)">
+							Zmazať
+						</button>
+					</td>
+				</tr>
+			</tbody>
+		</table>
+		<p v-else class="empty-state">Tento jedálniček zatiaľ nemá položky.</p>
+	</section>
+</template>
diff --git a/frontend/src/components/meals/MealTypeFilter.vue b/frontend/src/components/meals/MealTypeFilter.vue
new file mode 100644
index 0000000..10c7d20
--- /dev/null
+++ b/frontend/src/components/meals/MealTypeFilter.vue
@@ -0,0 +1,27 @@
+<script setup lang="ts">
+import type { MealType } from '@/types/domain'
+
+const props = defineProps<{
+	modelValue: MealType | ''
+}>()
+
+const emit = defineEmits<{
+	(event: 'update:modelValue', value: MealType | ''): void
+}>()
+</script>
+
+<template>
+	<label class="filter-control">
+		<span>Typ jedla</span>
+		<select
+			class="input-select"
+			:value="props.modelValue"
+			@change="emit('update:modelValue', ($event.target as HTMLSelectElement).value as MealType | '')"
+		>
+			<option value="">Všetky</option>
+			<option value="breakfast">Raňajky</option>
+			<option value="lunch">Obed</option>
+			<option value="dinner">Večera</option>
+		</select>
+	</label>
+</template>
diff --git a/frontend/src/components/navigation/AppBottomTabs.vue b/frontend/src/components/navigation/AppBottomTabs.vue
new file mode 100644
index 0000000..a218d41
--- /dev/null
+++ b/frontend/src/components/navigation/AppBottomTabs.vue
@@ -0,0 +1,22 @@
+<script setup lang="ts">
+const tabs = [
+	{ to: { name: 'today' }, label: 'Dnes' },
+	{ to: { name: 'meals' }, label: 'Jedlá' },
+	{ to: { name: 'ingredients' }, label: 'Suroviny' },
+	{ to: { name: 'stats' }, label: 'Stats' },
+	{ to: { name: 'settings' }, label: 'Viac' },
+]
+</script>
+
+<template>
+	<nav class="app-bottom-tabs">
+		<RouterLink
+			v-for="tab in tabs"
+			:key="tab.label"
+			:to="tab.to"
+			class="app-bottom-tabs__link"
+		>
+			{{ tab.label }}
+		</RouterLink>
+	</nav>
+</template>
diff --git a/frontend/src/components/navigation/AppSidebar.vue b/frontend/src/components/navigation/AppSidebar.vue
new file mode 100644
index 0000000..ff7958a
--- /dev/null
+++ b/frontend/src/components/navigation/AppSidebar.vue
@@ -0,0 +1,28 @@
+<script setup lang="ts">
+const navItems = [
+	{ to: { name: 'today' }, label: 'Dnes' },
+	{ to: { name: 'meals' }, label: 'Jedálničky' },
+	{ to: { name: 'ingredients' }, label: 'Suroviny' },
+	{ to: { name: 'stats' }, label: 'Štatistiky' },
+	{ to: { name: 'settings' }, label: 'Nastavenia' },
+]
+</script>
+
+<template>
+	<aside class="app-sidebar">
+		<div class="app-sidebar__brand">
+			<img src="/Nutrio.png" alt="Nutrio" class="app-sidebar__logo" />
+			<strong>Nutrio</strong>
+		</div>
+		<nav class="app-sidebar__nav">
+			<RouterLink
+				v-for="item in navItems"
+				:key="item.label"
+				:to="item.to"
+				class="app-nav-link"
+			>
+				{{ item.label }}
+			</RouterLink>
+		</nav>
+	</aside>
+</template>
diff --git a/frontend/src/components/navigation/AppTopbar.vue b/frontend/src/components/navigation/AppTopbar.vue
new file mode 100644
index 0000000..361a732
--- /dev/null
+++ b/frontend/src/components/navigation/AppTopbar.vue
@@ -0,0 +1,38 @@
+<script setup lang="ts">
+import { computed } from 'vue'
+import { useRoute } from 'vue-router'
+import { useAuthStore } from '@/stores/auth'
+
+const route = useRoute()
+const auth = useAuthStore()
+
+const title = computed(() => {
+	switch (route.name) {
+		case 'today':
+			return 'Denný prehľad'
+		case 'meals':
+			return 'Jedálničky'
+		case 'meal-detail':
+			return 'Detail jedálnička'
+		case 'ingredients':
+			return 'Suroviny'
+		case 'stats':
+			return 'Štatistiky'
+		case 'settings':
+			return 'Nastavenia'
+		default:
+			return 'Nutrio'
+	}
+})
+</script>
+
+<template>
+	<header class="app-topbar">
+		<div>
+			<h1>{{ title }}</h1>
+		</div>
+		<div class="app-topbar__user" v-if="auth.userEmail">
+			{{ auth.userEmail }}
+		</div>
+	</header>
+</template>
diff --git a/frontend/src/components/today/DayMealCard.vue b/frontend/src/components/today/DayMealCard.vue
new file mode 100644
index 0000000..9a54527
--- /dev/null
+++ b/frontend/src/components/today/DayMealCard.vue
@@ -0,0 +1,47 @@
+<script setup lang="ts">
+import { computed } from 'vue'
+import type { Meal, MealType } from '@/types/domain'
+
+const props = defineProps<{
+	mealType: MealType
+	label: string
+	mealOptions: Array<{ value: number; label: string }>
+	selectedMealId: number | null
+	meal: Meal | null
+}>()
+
+const emit = defineEmits<{
+	(event: 'select-meal', mealType: MealType, mealId: number | null): void
+}>()
+
+const selectedValue = computed({
+	get: () => (props.selectedMealId === null ? '' : String(props.selectedMealId)),
+	set: (value: string) => {
+		if (value.length <= 0) {
+			emit('select-meal', props.mealType, null)
+			return
+		}
+		emit('select-meal', props.mealType, Number(value))
+	},
+})
+</script>
+
+<template>
+	<section class="card day-meal-card">
+		<div class="day-meal-card__header">
+			<h3>{{ label }}</h3>
+		</div>
+		<select v-model="selectedValue" class="input-select">
+			<option value="">Bez jedálnička</option>
+			<option v-for="option in mealOptions" :key="option.value" :value="String(option.value)">
+				{{ option.label }}
+			</option>
+		</select>
+		<p class="day-meal-card__summary" v-if="meal?.totals">
+			{{ meal.totals.kcal }} kcal · B {{ meal.totals.protein_g }} g · S {{ meal.totals.carbs_g }} g · T {{ meal.totals.fat_g }} g
+		</p>
+		<p class="day-meal-card__summary" v-else>
+			Zatiaľ bez položiek.
+		</p>
+	</section>
+</template>
diff --git a/frontend/src/components/today/DayTotalsCard.vue b/frontend/src/components/today/DayTotalsCard.vue
new file mode 100644
index 0000000..c4fc679
--- /dev/null
+++ b/frontend/src/components/today/DayTotalsCard.vue
@@ -0,0 +1,31 @@
+<script setup lang="ts">
+import type { NutritionTotals } from '@/types/domain'
+
+defineProps<{
+	totals: NutritionTotals
+}>()
+</script>
+
+<template>
+	<section class="card totals-card">
+		<h3>Súčty dňa</h3>
+		<div class="totals-grid">
+			<div>
+				<span>Kcal</span>
+				<strong>{{ totals.kcal }}</strong>
+			</div>
+			<div>
+				<span>Bielkoviny</span>
+				<strong>{{ totals.protein_g }} g</strong>
+			</div>
+			<div>
+				<span>Sacharidy</span>
+				<strong>{{ totals.carbs_g }} g</strong>
+			</div>
+			<div>
+				<span>Tuky</span>
+				<strong>{{ totals.fat_g }} g</strong>
+			</div>
+		</div>
+	</section>
+</template>
diff --git a/frontend/src/components/today/MealPickerModal.vue b/frontend/src/components/today/MealPickerModal.vue
new file mode 100644
index 0000000..c12728a
--- /dev/null
+++ b/frontend/src/components/today/MealPickerModal.vue
@@ -0,0 +1,5 @@
+<template>
+	<div class="card" aria-hidden="true">
+		<p>MealPickerModal placeholder</p>
+	</div>
+</template>
diff --git a/frontend/src/main.ts b/frontend/src/main.ts
index d0d27d6..44f9442 100644
--- a/frontend/src/main.ts
+++ b/frontend/src/main.ts
@@ -4,10 +4,12 @@ import './assets/css/style.css'
 import App from './App.vue'
 import i18n from './i18n'
 import router from './router'
+import { pinia } from './stores'
 
 const app = createApp(App)
 
 app.component('font-awesome-icon', FontAwesomeIcon)
+app.use(pinia)
 app.use(router)
 app.use(i18n)
 
diff --git a/frontend/src/router/index.ts b/frontend/src/router/index.ts
index 70c45be..18aff29 100644
--- a/frontend/src/router/index.ts
+++ b/frontend/src/router/index.ts
@@ -1,15 +1,57 @@
-import { createRouter, createWebHistory } from 'vue-router'
+import { createRouter, createWebHistory, type RouteRecordRaw } from 'vue-router'
 import AuthView from '@/views/AuthView.vue'
+import AppLayout from '@/views/AppLayout.vue'
+import TodayView from '@/views/TodayView.vue'
+import MealsView from '@/views/MealsView.vue'
+import MealDetailView from '@/views/MealDetailView.vue'
+import IngredientsView from '@/views/IngredientsView.vue'
+import StatsView from '@/views/StatsView.vue'
+import SettingsView from '@/views/SettingsView.vue'
+import { pinia } from '@/stores'
+import { useAuthStore } from '@/stores/auth'
+
+const routes: RouteRecordRaw[] = [
+	{
+		path: '/',
+		name: 'auth',
+		component: AuthView,
+		meta: { guestOnly: true },
+	},
+	{
+		path: '/app',
+		component: AppLayout,
+		meta: { requiresAuth: true },
+		children: [
+			{ path: '', redirect: { name: 'today' } },
+			{ path: 'today/:date(\\d{4}-\\d{2}-\\d{2})?', name: 'today', component: TodayView },
+			{ path: 'meals', name: 'meals', component: MealsView },
+			{ path: 'meals/:mealId(\\d+)', name: 'meal-detail', component: MealDetailView, props: true },
+			{ path: 'ingredients', name: 'ingredients', component: IngredientsView },
+			{ path: 'stats', name: 'stats', component: StatsView },
+			{ path: 'settings', name: 'settings', component: SettingsView },
+		],
+	},
+]
 
 const router = createRouter({
-  history: createWebHistory(import.meta.env.BASE_URL),
-  routes: [
-    {
-      path: '/',
-      name: 'auth',
-      component: AuthView,
-    },
-  ],
+	history: createWebHistory(import.meta.env.BASE_URL),
+	routes,
+})
+
+router.beforeEach((to) => {
+	const auth = useAuthStore(pinia)
+	const requiresAuth = to.matched.some((route) => route.meta.requiresAuth === true)
+	const guestOnly = to.matched.some((route) => route.meta.guestOnly === true)
+
+	if (requiresAuth && !auth.isAuthenticated) {
+		return { name: 'auth', query: { redirect: to.fullPath } }
+	}
+
+	if (guestOnly && auth.isAuthenticated) {
+		return { name: 'today' }
+	}
+
+	return true
 })
 
 export default router
diff --git a/frontend/src/stores/auth.ts b/frontend/src/stores/auth.ts
new file mode 100644
index 0000000..a580296
--- /dev/null
+++ b/frontend/src/stores/auth.ts
@@ -0,0 +1,73 @@
+import { computed, ref } from 'vue'
+import { defineStore } from 'pinia'
+import BackendAPI from '@/BackendAPI.ts'
+import { unwrapApiData } from '@/utils/api'
+
+type LoginPayload = {
+	auto_registered?: boolean
+	user?: {
+		email?: string | null
+		token?: string | null
+	}
+}
+
+const TOKEN_KEY = 'token'
+const USER_EMAIL_KEY = 'user_email'
+
+export const useAuthStore = defineStore('auth', () => {
+	const token = ref<string | null>(localStorage.getItem(TOKEN_KEY))
+	const userEmail = ref<string | null>(localStorage.getItem(USER_EMAIL_KEY))
+	const isAuthenticated = computed(() => typeof token.value === 'string' && token.value.length > 0)
+
+	const setSession = (nextToken: string, nextUserEmail: string) => {
+		token.value = nextToken
+		userEmail.value = nextUserEmail
+		localStorage.setItem(TOKEN_KEY, nextToken)
+		localStorage.setItem(USER_EMAIL_KEY, nextUserEmail)
+	}
+
+	const clearSession = () => {
+		token.value = null
+		userEmail.value = null
+		localStorage.removeItem(TOKEN_KEY)
+		localStorage.removeItem(USER_EMAIL_KEY)
+	}
+
+	const login = async (email: string, password: string): Promise<{ autoRegistered: boolean }> => {
+		const payload = unwrapApiData<LoginPayload>(await BackendAPI.userLogin(email, password))
+		const nextToken = payload.user?.token ?? null
+		const nextUserEmail = payload.user?.email ?? email
+
+		if (!nextToken) {
+			throw new Error('Token missing in login response')
+		}
+
+		setSession(nextToken, nextUserEmail)
+
+		return {
+			autoRegistered: payload.auto_registered === true,
+		}
+	}
+
+	const logout = async () => {
+		if (token.value) {
+			try {
+				await BackendAPI.userLogout(token.value)
+			} catch {
+				// Keep local logout flow even if API call fails.
+			}
+		}
+
+		clearSession()
+	}
+
+	return {
+		token,
+		userEmail,
+		isAuthenticated,
+		setSession,
+		clearSession,
+		login,
+		logout,
+	}
+})
diff --git a/frontend/src/stores/diary.ts b/frontend/src/stores/diary.ts
new file mode 100644
index 0000000..30d28b2
--- /dev/null
+++ b/frontend/src/stores/diary.ts
@@ -0,0 +1,127 @@
+import { computed, ref } from 'vue'
+import { defineStore } from 'pinia'
+import BackendAPI from '@/BackendAPI.ts'
+import { useAuthStore } from '@/stores/auth'
+import { useMealsStore } from '@/stores/meals'
+import type { DayMealsByType, DiaryDay, MealType } from '@/types/domain'
+import { MEAL_TYPES } from '@/types/domain'
+import { computeDayTotals, emptyTotals } from '@/utils/nutrition'
+import { unwrapApiData } from '@/utils/api'
+
+const createEmptyDay = (date: string): DiaryDay => ({
+	user_id: 0,
+	day_date: date,
+	diary_day_id: null,
+	entries: [],
+	totals: emptyTotals(),
+})
+
+export const useDiaryStore = defineStore('diary', () => {
+	const auth = useAuthStore()
+	const mealsStore = useMealsStore()
+
+	const currentDay = ref<DiaryDay | null>(null)
+	const loading = ref(false)
+
+	const requireToken = (): string => {
+		if (!auth.token) {
+			throw new Error('User is not authenticated')
+		}
+		return auth.token
+	}
+
+	const mealsByType = computed<DayMealsByType>(() => {
+		const ret: DayMealsByType = {
+			breakfast: null,
+			lunch: null,
+			dinner: null,
+		}
+
+		for (const entry of currentDay.value?.entries ?? []) {
+			const cachedMeal = mealsStore.getMealFromCache(entry.meal_id)
+			ret[entry.meal_type] = cachedMeal ?? entry.meal ?? null
+		}
+
+		return ret
+	})
+
+	const computedTotals = computed(() => computeDayTotals(mealsByType.value))
+
+	const hydrateDayMeals = async (day: DiaryDay) => {
+		const loadTasks: Promise<unknown>[] = []
+		for (const entry of day.entries) {
+			loadTasks.push(mealsStore.ensureMeal(entry.meal_id))
+		}
+		if (loadTasks.length > 0) {
+			await Promise.all(loadTasks)
+		}
+	}
+
+	const setCurrentDay = async (day: DiaryDay) => {
+		currentDay.value = day
+		await hydrateDayMeals(day)
+	}
+
+	const loadDay = async (date: string) => {
+		loading.value = true
+		try {
+			const token = requireToken()
+			const payload = unwrapApiData<DiaryDay>(await BackendAPI.diaryDayGet(token, date, true))
+			await setCurrentDay(payload)
+		} finally {
+			loading.value = false
+		}
+	}
+
+	const setMealForType = async (date: string, mealType: MealType, mealId: number) => {
+		const token = requireToken()
+		const payload = unwrapApiData<DiaryDay>(await BackendAPI.diaryDaySetMeal(token, date, mealType, mealId))
+		await setCurrentDay(payload)
+	}
+
+	const unsetMealForType = async (date: string, mealType: MealType) => {
+		const token = requireToken()
+		const payload = unwrapApiData<DiaryDay>(await BackendAPI.diaryDayUnsetMeal(token, date, mealType))
+		await setCurrentDay(payload)
+	}
+
+	const selectedMealId = (mealType: MealType): number | null => {
+		const entry = currentDay.value?.entries.find((item) => item.meal_type === mealType)
+		return entry?.meal_id ?? null
+	}
+
+	const ensureCurrentDay = (date: string) => {
+		if (!currentDay.value || currentDay.value.day_date !== date) {
+			currentDay.value = createEmptyDay(date)
+		}
+	}
+
+	const selectedMealOptions = computed(() => {
+		const map: Record<MealType, { value: number; label: string }[]> = {
+			breakfast: [],
+			lunch: [],
+			dinner: [],
+		}
+
+		for (const type of MEAL_TYPES) {
+			map[type] = mealsStore.sortedMeals
+				.filter((meal) => meal.meal_type === type)
+				.map((meal) => ({ value: meal.meal_id, label: meal.name }))
+		}
+
+		return map
+	})
+
+	return {
+		currentDay,
+		loading,
+		mealsByType,
+		computedTotals,
+		selectedMealOptions,
+		selectedMealId,
+		ensureCurrentDay,
+		loadDay,
+		setMealForType,
+		unsetMealForType,
+	}
+})
diff --git a/frontend/src/stores/index.ts b/frontend/src/stores/index.ts
new file mode 100644
index 0000000..1c2af7e
--- /dev/null
+++ b/frontend/src/stores/index.ts
@@ -0,0 +1,3 @@
+import { createPinia } from 'pinia'
+
+export const pinia = createPinia()
diff --git a/frontend/src/stores/ingredients.ts b/frontend/src/stores/ingredients.ts
new file mode 100644
index 0000000..5fa0967
--- /dev/null
+++ b/frontend/src/stores/ingredients.ts
@@ -0,0 +1,100 @@
+import { computed, ref } from 'vue'
+import { defineStore } from 'pinia'
+import BackendAPI from '@/BackendAPI.ts'
+import { useAuthStore } from '@/stores/auth'
+import type { Ingredient } from '@/types/domain'
+import { unwrapApiData } from '@/utils/api'
+
+export type IngredientInput = {
+	name: string
+	protein_g_100: number
+	carbs_g_100: number
+	sugar_g_100: number
+	fat_g_100: number
+	fiber_g_100: number
+	kcal_100: number
+}
+
+export const useIngredientsStore = defineStore('ingredients', () => {
+	const auth = useAuthStore()
+	const items = ref<Ingredient[]>([])
+	const loading = ref(false)
+
+	const sortedItems = computed(() => {
+		return [...items.value].sort((a, b) => a.name.localeCompare(b.name, 'sk'))
+	})
+
+	const requireToken = (): string => {
+		if (!auth.token) {
+			throw new Error('User is not authenticated')
+		}
+		return auth.token
+	}
+
+	const loadIngredients = async (query = '', includeGlobal = true) => {
+		loading.value = true
+		try {
+			const token = requireToken()
+			const data = unwrapApiData<Ingredient[]>(
+				await BackendAPI.ingredientList(token, query, includeGlobal),
+			)
+			items.value = Array.isArray(data) ? data : []
+		} finally {
+			loading.value = false
+		}
+	}
+
+	const createIngredient = async (payload: IngredientInput) => {
+		const token = requireToken()
+		const created = unwrapApiData<Ingredient>(
+			await BackendAPI.ingredientCreate(
+				token,
+				payload.name,
+				payload.protein_g_100,
+				payload.carbs_g_100,
+				payload.sugar_g_100,
+				payload.fat_g_100,
+				payload.fiber_g_100,
+				payload.kcal_100,
+			),
+		)
+		items.value = [...items.value, created]
+		return created
+	}
+
+	const updateIngredient = async (ingredientId: number, payload: IngredientInput) => {
+		const token = requireToken()
+		const updated = unwrapApiData<Ingredient>(
+			await BackendAPI.ingredientUpdate(
+				token,
+				ingredientId,
+				payload.name,
+				payload.protein_g_100,
+				payload.carbs_g_100,
+				payload.sugar_g_100,
+				payload.fat_g_100,
+				payload.fiber_g_100,
+				payload.kcal_100,
+			),
+		)
+
+		items.value = items.value.map((item) => (item.ingredient_id === ingredientId ? updated : item))
+		return updated
+	}
+
+	const deleteIngredient = async (ingredientId: number) => {
+		const token = requireToken()
+		await BackendAPI.ingredientDelete(token, ingredientId)
+		items.value = items.value.filter((item) => item.ingredient_id !== ingredientId)
+	}
+
+	return {
+		items,
+		sortedItems,
+		loading,
+		loadIngredients,
+		createIngredient,
+		updateIngredient,
+		deleteIngredient,
+	}
+})
diff --git a/frontend/src/stores/meals.ts b/frontend/src/stores/meals.ts
new file mode 100644
index 0000000..dfcf619
--- /dev/null
+++ b/frontend/src/stores/meals.ts
@@ -0,0 +1,164 @@
+import { computed, ref } from 'vue'
+import { defineStore } from 'pinia'
+import BackendAPI from '@/BackendAPI.ts'
+import { useAuthStore } from '@/stores/auth'
+import type { Meal, MealItem, MealType } from '@/types/domain'
+import { withComputedMealTotals } from '@/utils/nutrition'
+import { unwrapApiData } from '@/utils/api'
+
+export type MealInput = {
+	name: string
+	meal_type: MealType
+}
+
+export type MealItemInput = {
+	ingredient_id: number
+	grams: number
+	position: number
+}
+
+type MealItemListResponse = {
+	meal_id: number
+	items: MealItem[]
+}
+
+export const useMealsStore = defineStore('meals', () => {
+	const auth = useAuthStore()
+	const list = ref<Meal[]>([])
+	const mealById = ref<Record<number, Meal>>({})
+	const loading = ref(false)
+
+	const sortedMeals = computed(() => {
+		return [...list.value].sort((a, b) => a.name.localeCompare(b.name, 'sk'))
+	})
+
+	const requireToken = (): string => {
+		if (!auth.token) {
+			throw new Error('User is not authenticated')
+		}
+		return auth.token
+	}
+
+	const upsertMeal = (meal: Meal) => {
+		const computedMeal = withComputedMealTotals(meal)
+		mealById.value[computedMeal.meal_id] = computedMeal
+
+		const index = list.value.findIndex((item) => item.meal_id === computedMeal.meal_id)
+		if (index >= 0) {
+			list.value.splice(index, 1, computedMeal)
+		} else {
+			list.value.push(computedMeal)
+		}
+	}
+
+	const loadMeals = async (mealType = '') => {
+		loading.value = true
+		try {
+			const token = requireToken()
+			const rows = unwrapApiData<Meal[]>(await BackendAPI.mealList(token, mealType, false, false))
+			const nextList = Array.isArray(rows)
+				? rows.map((meal) => withComputedMealTotals({ ...meal, items: meal.items ?? [] }))
+				: []
+
+			list.value = nextList
+			const nextById: Record<number, Meal> = {}
+			for (const meal of nextList) {
+				nextById[meal.meal_id] = meal
+			}
+			mealById.value = nextById
+		} finally {
+			loading.value = false
+		}
+	}
+
+	const loadMeal = async (mealId: number): Promise<Meal> => {
+		const token = requireToken()
+		const mealData = unwrapApiData<Meal>(await BackendAPI.mealGet(token, mealId, true, false))
+		const itemsData = unwrapApiData<MealItemListResponse>(await BackendAPI.mealItemList(token, mealId, false))
+		const mealWithItems = withComputedMealTotals({
+			...mealData,
+			items: itemsData.items ?? [],
+		})
+		upsertMeal(mealWithItems)
+		return mealWithItems
+	}
+
+	const getMealFromCache = (mealId: number): Meal | null => {
+		return mealById.value[mealId] ?? null
+	}
+
+	const ensureMeal = async (mealId: number): Promise<Meal> => {
+		const cached = getMealFromCache(mealId)
+		if (cached?.items?.length) {
+			return cached
+		}
+		return loadMeal(mealId)
+	}
+
+	const createMeal = async (payload: MealInput): Promise<Meal> => {
+		const token = requireToken()
+		const created = unwrapApiData<Meal>(await BackendAPI.mealCreate(token, payload.name, payload.meal_type))
+		const nextMeal = withComputedMealTotals({ ...created, items: [] })
+		upsertMeal(nextMeal)
+		return nextMeal
+	}
+
+	const updateMeal = async (mealId: number, payload: MealInput): Promise<Meal> => {
+		const token = requireToken()
+		const updated = unwrapApiData<Meal>(await BackendAPI.mealUpdate(token, mealId, payload.name, payload.meal_type))
+		const existingItems = mealById.value[mealId]?.items ?? []
+		const nextMeal = withComputedMealTotals({ ...updated, items: existingItems })
+		upsertMeal(nextMeal)
+		return nextMeal
+	}
+
+	const deleteMeal = async (mealId: number) => {
+		const token = requireToken()
+		await BackendAPI.mealDelete(token, mealId)
+		list.value = list.value.filter((meal) => meal.meal_id !== mealId)
+		const nextById = { ...mealById.value }
+		delete nextById[mealId]
+		mealById.value = nextById
+	}
+
+	const addMealItem = async (mealId: number, payload: MealItemInput): Promise<Meal> => {
+		const token = requireToken()
+		await BackendAPI.mealItemAdd(token, mealId, payload.ingredient_id, payload.grams, payload.position)
+		return loadMeal(mealId)
+	}
+
+	const updateMealItem = async (mealItemId: number, payload: MealItemInput, mealId: number): Promise<Meal> => {
+		const token = requireToken()
+		await BackendAPI.mealItemUpdate(
+			token,
+			mealItemId,
+			payload.ingredient_id,
+			payload.grams,
+			payload.position,
+		)
+		return loadMeal(mealId)
+	}
+
+	const deleteMealItem = async (mealId: number, mealItemId: number): Promise<Meal> => {
+		const token = requireToken()
+		await BackendAPI.mealItemDelete(token, mealItemId)
+		return loadMeal(mealId)
+	}
+
+	return {
+		list,
+		mealById,
+		sortedMeals,
+		loading,
+		loadMeals,
+		loadMeal,
+		getMealFromCache,
+		ensureMeal,
+		createMeal,
+		updateMeal,
+		deleteMeal,
+		addMealItem,
+		updateMealItem,
+		deleteMealItem,
+	}
+})
diff --git a/frontend/src/types/domain.ts b/frontend/src/types/domain.ts
new file mode 100644
index 0000000..48d6957
--- /dev/null
+++ b/frontend/src/types/domain.ts
@@ -0,0 +1,77 @@
+export type MealType = 'breakfast' | 'lunch' | 'dinner'
+
+export interface Ingredient {
+	ingredient_id: number
+	user_id: number | null
+	name: string
+	protein_g_100: number
+	carbs_g_100: number
+	sugar_g_100: number
+	fat_g_100: number
+	fiber_g_100: number
+	kcal_100: number
+}
+
+export interface MealItemNutrition {
+	protein_g: number
+	carbs_g: number
+	sugar_g: number
+	fat_g: number
+	fiber_g: number
+	kcal: number
+}
+
+export interface MealItem {
+	meal_item_id: number
+	meal_id: number
+	ingredient_id: number
+	grams: number
+	position: number
+	ingredient?: Ingredient
+	nutrition?: MealItemNutrition
+}
+
+export interface NutritionTotals {
+	protein_g: number
+	carbs_g: number
+	sugar_g: number
+	fat_g: number
+	fiber_g: number
+	kcal: number
+}
+
+export interface Meal {
+	meal_id: number
+	user_id: number
+	name: string
+	meal_type: MealType
+	items?: MealItem[]
+	totals?: NutritionTotals
+}
+
+export interface DiaryEntry {
+	diary_entry_id: number
+	diary_day_id: number
+	meal_type: MealType
+	meal_id: number
+	meal?: Meal
+	meal_totals?: NutritionTotals
+}
+
+export interface DiaryDay {
+	user_id: number
+	day_date: string
+	diary_day_id: number | null
+	entries: DiaryEntry[]
+	totals?: NutritionTotals
+}
+
+export type DayMealsByType = Record<MealType, Meal | null>
+
+export const MEAL_TYPES: MealType[] = ['breakfast', 'lunch', 'dinner']
+
+export const MEAL_TYPE_LABELS_SK: Record<MealType, string> = {
+	breakfast: 'Raňajky',
+	lunch: 'Obed',
+	dinner: 'Večera',
+}
diff --git a/frontend/src/utils/api.ts b/frontend/src/utils/api.ts
new file mode 100644
index 0000000..326d103
--- /dev/null
+++ b/frontend/src/utils/api.ts
@@ -0,0 +1,17 @@
+export type ApiEnvelope<T> = {
+	status: 'OK'
+	data: T
+}
+
+export const unwrapApiData = <T>(payload: unknown): T => {
+	if (
+		typeof payload === 'object' &&
+		payload !== null &&
+		'status' in payload &&
+		'data' in payload
+	) {
+		return (payload as ApiEnvelope<T>).data
+	}
+
+	return payload as T
+}
diff --git a/frontend/src/utils/date.ts b/frontend/src/utils/date.ts
new file mode 100644
index 0000000..60c7680
--- /dev/null
+++ b/frontend/src/utils/date.ts
@@ -0,0 +1,8 @@
+export const formatISODate = (date: Date): string => {
+	const year = date.getFullYear()
+	const month = String(date.getMonth() + 1).padStart(2, '0')
+	const day = String(date.getDate()).padStart(2, '0')
+	return `${year}-${month}-${day}`
+}
+
+export const todayISO = (): string => formatISODate(new Date())
diff --git a/frontend/src/utils/nutrition.ts b/frontend/src/utils/nutrition.ts
new file mode 100644
index 0000000..e3b3a93
--- /dev/null
+++ b/frontend/src/utils/nutrition.ts
@@ -0,0 +1,83 @@
+import type {
+	DayMealsByType,
+	Ingredient,
+	Meal,
+	MealItem,
+	NutritionTotals,
+} from '@/types/domain'
+
+const round2 = (value: number): number => Math.round(value * 100) / 100
+
+export const emptyTotals = (): NutritionTotals => ({
+	protein_g: 0,
+	carbs_g: 0,
+	sugar_g: 0,
+	fat_g: 0,
+	fiber_g: 0,
+	kcal: 0,
+})
+
+export const computeItemNutrition = (ingredient: Ingredient, grams: number): NutritionTotals => {
+	const factor = grams / 100
+	const protein = round2(ingredient.protein_g_100 * factor)
+	const carbs = round2(ingredient.carbs_g_100 * factor)
+	const sugar = round2(ingredient.sugar_g_100 * factor)
+	const fat = round2(ingredient.fat_g_100 * factor)
+	const fiber = round2(ingredient.fiber_g_100 * factor)
+	const kcal = round2(protein * 4 + carbs * 4 + fat * 9)
+
+	return {
+		protein_g: protein,
+		carbs_g: carbs,
+		sugar_g: sugar,
+		fat_g: fat,
+		fiber_g: fiber,
+		kcal,
+	}
+}
+
+export const addTotals = (base: NutritionTotals, add: NutritionTotals): NutritionTotals => {
+	return {
+		protein_g: round2(base.protein_g + add.protein_g),
+		carbs_g: round2(base.carbs_g + add.carbs_g),
+		sugar_g: round2(base.sugar_g + add.sugar_g),
+		fat_g: round2(base.fat_g + add.fat_g),
+		fiber_g: round2(base.fiber_g + add.fiber_g),
+		kcal: round2(base.kcal + add.kcal),
+	}
+}
+
+export const computeMealTotals = (items: MealItem[]): NutritionTotals => {
+	let totals = emptyTotals()
+
+	for (const item of items) {
+		if (!item.ingredient || item.grams <= 0) {
+			continue
+		}
+		const itemTotals = computeItemNutrition(item.ingredient, item.grams)
+		totals = addTotals(totals, itemTotals)
+	}
+
+	return totals
+}
+
+export const computeDayTotals = (mealsByType: Partial<DayMealsByType>): NutritionTotals => {
+	let totals = emptyTotals()
+
+	for (const meal of Object.values(mealsByType)) {
+		if (!meal) {
+			continue
+		}
+		const mealTotals = computeMealTotals(meal.items ?? [])
+		totals = addTotals(totals, mealTotals)
+	}
+
+	return totals
+}
+
+export const withComputedMealTotals = (meal: Meal): Meal => {
+	return {
+		...meal,
+		totals: computeMealTotals(meal.items ?? []),
+	}
+}
diff --git a/frontend/src/views/AppLayout.vue b/frontend/src/views/AppLayout.vue
new file mode 100644
index 0000000..73bab10
--- /dev/null
+++ b/frontend/src/views/AppLayout.vue
@@ -0,0 +1,19 @@
+<script setup lang="ts">
+import { RouterView } from 'vue-router'
+import AppSidebar from '@/components/navigation/AppSidebar.vue'
+import AppBottomTabs from '@/components/navigation/AppBottomTabs.vue'
+import AppTopbar from '@/components/navigation/AppTopbar.vue'
+</script>
+
+<template>
+	<div class="app-shell">
+		<AppSidebar class="desktop-nav" />
+		<div class="app-main">
+			<AppTopbar />
+			<main class="app-content">
+				<RouterView />
+			</main>
+		</div>
+		<AppBottomTabs class="mobile-nav" />
+	</div>
+</template>
diff --git a/frontend/src/views/AuthView.vue b/frontend/src/views/AuthView.vue
index 83c1cc1..958b5e1 100644
--- a/frontend/src/views/AuthView.vue
+++ b/frontend/src/views/AuthView.vue
@@ -1,5 +1,6 @@
 <script setup lang="ts">
 import { computed, ref, watch } from 'vue'
+import { useRoute, useRouter } from 'vue-router'
 import { useI18n } from 'vue-i18n'
 import {
 	faEnvelope,
@@ -12,23 +13,16 @@ import {
 	faSun,
 } from '@fortawesome/free-solid-svg-icons'
 
-import BackendAPI from '@/BackendAPI.ts'
 import i18n from '@/i18n'
 import { SUPPORTED_LOCALES, type AppLocale } from '@/i18n'
+import { useAuthStore } from '@/stores/auth'
 
 type ThemeMode = 'light' | 'dark'
 
-type LoginResponse = {
-	data?: {
-		auto_registered?: boolean
-		user?: {
-			email?: string | null
-			token?: string | null
-		}
-	}
-}
-
 const { t } = useI18n({ useScope: 'global' })
+const router = useRouter()
+const route = useRoute()
+const authStore = useAuthStore()
 
 const email = ref('')
 const password = ref('')
@@ -126,27 +120,23 @@ const submitForm = async () => {
 
 	isLoading.value = true
 	try {
-		const response = (await BackendAPI.userLogin(
+		const result = await authStore.login(
 			normalizedEmail,
 			normalizedPassword,
-		)) as LoginResponse
-		const token = response.data?.user?.token ?? null
-		const userEmail = response.data?.user?.email ?? normalizedEmail
-		console.log(response)
-		if (token) {
-			localStorage.setItem('token', token)
-		} else {
-			localStorage.removeItem('token')
-		}
-		localStorage.setItem('user_email', userEmail)
+		)
 
-		successMessage.value = response.data?.auto_registered
+		successMessage.value = result.autoRegistered
 			? t('auth.successAutoRegistered')
 			: t('auth.successLoggedIn')
 
 		email.value = normalizedEmail
 		password.value = ''
 		showPassword.value = false
+		const redirect =
+			typeof route.query.redirect === 'string' && route.query.redirect.length > 0
+				? route.query.redirect
+				: '/app/today'
+		await router.replace(redirect)
 	} catch (error) {
 		errorMessage.value = mapApiError(error)
 	} finally {
@@ -221,4 +211,4 @@ const submitForm = async () => {
 			</section>
 		</div>
 	</main>
-</template>
\ No newline at end of file
+</template>
diff --git a/frontend/src/views/IngredientsView.vue b/frontend/src/views/IngredientsView.vue
new file mode 100644
index 0000000..6babf2e
--- /dev/null
+++ b/frontend/src/views/IngredientsView.vue
@@ -0,0 +1,103 @@
+<script setup lang="ts">
+import { computed, onMounted, ref } from 'vue'
+import IngredientForm from '@/components/ingredients/IngredientForm.vue'
+import { useIngredientsStore } from '@/stores/ingredients'
+import type { Ingredient } from '@/types/domain'
+
+const ingredientsStore = useIngredientsStore()
+const editingId = ref<number | null>(null)
+const saving = ref(false)
+
+onMounted(async () => {
+	if (ingredientsStore.items.length <= 0) {
+		await ingredientsStore.loadIngredients()
+	}
+})
+
+const editingIngredient = computed<Ingredient | null>(() => {
+	if (editingId.value === null) {
+		return null
+	}
+	return ingredientsStore.items.find((item) => item.ingredient_id === editingId.value) ?? null
+})
+
+const startCreate = () => {
+	editingId.value = null
+}
+
+const startEdit = (ingredientId: number) => {
+	editingId.value = ingredientId
+}
+
+const cancelEdit = () => {
+	editingId.value = null
+}
+
+const saveIngredient = async (payload: {
+	name: string
+	protein_g_100: number
+	carbs_g_100: number
+	sugar_g_100: number
+	fat_g_100: number
+	fiber_g_100: number
+	kcal_100: number
+}) => {
+	saving.value = true
+	try {
+		if (editingIngredient.value) {
+			await ingredientsStore.updateIngredient(editingIngredient.value.ingredient_id, payload)
+		} else {
+			await ingredientsStore.createIngredient(payload)
+		}
+		editingId.value = null
+	} finally {
+		saving.value = false
+	}
+}
+
+const removeIngredient = async (ingredientId: number) => {
+	await ingredientsStore.deleteIngredient(ingredientId)
+	if (editingId.value === ingredientId) {
+		editingId.value = null
+	}
+}
+</script>
+
+<template>
+	<section class="page">
+		<IngredientForm
+			:initial="editingIngredient"
+			:submit-label="saving ? 'Ukladám...' : 'Uložiť'"
+			@save="saveIngredient"
+			@cancel="cancelEdit"
+		/>
+
+		<section class="card">
+			<div class="section-header">
+				<h3>Databáza surovín</h3>
+				<button class="btn" type="button" @click="startCreate">Nová surovina</button>
+			</div>
+			<div class="list" v-if="ingredientsStore.sortedItems.length > 0">
+				<div class="list-row" v-for="ingredient in ingredientsStore.sortedItems" :key="ingredient.ingredient_id">
+					<div>
+						<strong>{{ ingredient.name }}</strong>
+						<p>
+							B {{ ingredient.protein_g_100 }} · S {{ ingredient.carbs_g_100 }} · T {{ ingredient.fat_g_100 }}
+						</p>
+					</div>
+					<div class="list-row__actions">
+						<button class="btn" type="button" @click="startEdit(ingredient.ingredient_id)">Upraviť</button>
+						<button
+							class="btn btn-danger"
+							type="button"
+							@click="removeIngredient(ingredient.ingredient_id)"
+						>
+							Zmazať
+						</button>
+					</div>
+				</div>
+			</div>
+			<p v-else class="empty-state">Zatiaľ nemáš uložené suroviny.</p>
+		</section>
+	</section>
+</template>
diff --git a/frontend/src/views/MealDetailView.vue b/frontend/src/views/MealDetailView.vue
new file mode 100644
index 0000000..121499c
--- /dev/null
+++ b/frontend/src/views/MealDetailView.vue
@@ -0,0 +1,157 @@
+<script setup lang="ts">
+import { computed, onMounted, ref, watch } from 'vue'
+import { useRoute, useRouter } from 'vue-router'
+import MealItemsEditor from '@/components/meals/MealItemsEditor.vue'
+import { useIngredientsStore } from '@/stores/ingredients'
+import { useMealsStore } from '@/stores/meals'
+import type { MealType } from '@/types/domain'
+
+const route = useRoute()
+const router = useRouter()
+const mealsStore = useMealsStore()
+const ingredientsStore = useIngredientsStore()
+
+const loading = ref(false)
+const saving = ref(false)
+const mealName = ref('')
+const mealType = ref<MealType>('breakfast')
+
+const mealId = computed(() => Number(route.params.mealId))
+
+const meal = computed(() => {
+	const id = mealId.value
+	if (!Number.isFinite(id)) {
+		return null
+	}
+	return mealsStore.mealById[id] ?? null
+})
+
+const syncForm = () => {
+	if (!meal.value) {
+		return
+	}
+	mealName.value = meal.value.name
+	mealType.value = meal.value.meal_type
+}
+
+watch(meal, syncForm, { immediate: true })
+
+const loadData = async () => {
+	if (!Number.isFinite(mealId.value)) {
+		return
+	}
+	loading.value = true
+	try {
+		if (ingredientsStore.items.length <= 0) {
+			await ingredientsStore.loadIngredients()
+		}
+		await mealsStore.loadMeal(mealId.value)
+	} finally {
+		loading.value = false
+	}
+}
+
+onMounted(loadData)
+watch(mealId, loadData)
+
+const saveMeal = async () => {
+	if (!meal.value) {
+		return
+	}
+	saving.value = true
+	try {
+		await mealsStore.updateMeal(meal.value.meal_id, {
+			name: mealName.value,
+			meal_type: mealType.value,
+		})
+	} finally {
+		saving.value = false
+	}
+}
+
+const removeMeal = async () => {
+	if (!meal.value) {
+		return
+	}
+	await mealsStore.deleteMeal(meal.value.meal_id)
+	await router.replace({ name: 'meals' })
+}
+
+const addItem = async (payload: { ingredient_id: number; grams: number }) => {
+	if (!meal.value) {
+		return
+	}
+	await mealsStore.addMealItem(meal.value.meal_id, {
+		...payload,
+		position: (meal.value.items?.length ?? 0) + 1,
+	})
+}
+
+const updateItem = async (payload: {
+	meal_item_id: number
+	ingredient_id: number
+	grams: number
+	position: number
+}) => {
+	if (!meal.value) {
+		return
+	}
+	await mealsStore.updateMealItem(
+		payload.meal_item_id,
+		{
+			ingredient_id: payload.ingredient_id,
+			grams: payload.grams,
+			position: payload.position,
+		},
+		meal.value.meal_id,
+	)
+}
+
+const removeItem = async (mealItemId: number) => {
+	if (!meal.value) {
+		return
+	}
+	await mealsStore.deleteMealItem(meal.value.meal_id, mealItemId)
+}
+</script>
+
+<template>
+	<section class="page">
+		<div v-if="loading" class="card">Načítavam jedálniček...</div>
+
+		<template v-else-if="meal">
+			<section class="card">
+				<div class="grid-two">
+					<label>
+						<span>Názov</span>
+						<input v-model="mealName" class="input-text" type="text" />
+					</label>
+					<label>
+						<span>Typ jedla</span>
+						<select v-model="mealType" class="input-select">
+							<option value="breakfast">Raňajky</option>
+							<option value="lunch">Obed</option>
+							<option value="dinner">Večera</option>
+						</select>
+					</label>
+				</div>
+				<div class="form-actions">
+					<button class="btn btn-primary" type="button" :disabled="saving" @click="saveMeal">
+						{{ saving ? 'Ukladám...' : 'Uložiť zmeny' }}
+					</button>
+					<button class="btn btn-danger" type="button" @click="removeMeal">Zmazať jedálniček</button>
+				</div>
+			</section>
+
+			<MealItemsEditor
+				:items="meal.items ?? []"
+				:ingredients="ingredientsStore.sortedItems"
+				@add-item="addItem"
+				@update-item="updateItem"
+				@remove-item="removeItem"
+			/>
+		</template>
+
+		<div v-else class="card">Jedálniček neexistuje.</div>
+	</section>
+</template>
diff --git a/frontend/src/views/MealsView.vue b/frontend/src/views/MealsView.vue
new file mode 100644
index 0000000..ffb2b14
--- /dev/null
+++ b/frontend/src/views/MealsView.vue
@@ -0,0 +1,86 @@
+<script setup lang="ts">
+import { computed, onMounted, ref } from 'vue'
+import { useRouter } from 'vue-router'
+import MealTypeFilter from '@/components/meals/MealTypeFilter.vue'
+import { useMealsStore } from '@/stores/meals'
+import type { MealType } from '@/types/domain'
+import { MEAL_TYPE_LABELS_SK } from '@/types/domain'
+
+const router = useRouter()
+const mealsStore = useMealsStore()
+
+const filterType = ref<MealType | ''>('')
+const newMealName = ref('')
+const newMealType = ref<MealType>('breakfast')
+const creating = ref(false)
+
+onMounted(async () => {
+	if (mealsStore.list.length <= 0) {
+		await mealsStore.loadMeals()
+	}
+})
+
+const filteredMeals = computed(() => {
+	if (!filterType.value) {
+		return mealsStore.sortedMeals
+	}
+	return mealsStore.sortedMeals.filter((meal) => meal.meal_type === filterType.value)
+})
+
+const createMeal = async () => {
+	const name = newMealName.value.trim()
+	if (name.length <= 0) {
+		return
+	}
+	creating.value = true
+	try {
+		const meal = await mealsStore.createMeal({
+			name,
+			meal_type: newMealType.value,
+		})
+		newMealName.value = ''
+		await router.push({ name: 'meal-detail', params: { mealId: meal.meal_id } })
+	} finally {
+		creating.value = false
+	}
+}
+</script>
+
+<template>
+	<section class="page">
+		<div class="page-header page-header--split">
+			<MealTypeFilter v-model="filterType" />
+		</div>
+
+		<section class="card form-inline">
+			<input v-model="newMealName" class="input-text" type="text" placeholder="Názov jedálnička" />
+			<select v-model="newMealType" class="input-select">
+				<option value="breakfast">Raňajky</option>
+				<option value="lunch">Obed</option>
+				<option value="dinner">Večera</option>
+			</select>
+			<button class="btn btn-primary" type="button" :disabled="creating" @click="createMeal">
+				{{ creating ? 'Ukladám...' : 'Vytvoriť' }}
+			</button>
+		</section>
+
+		<section class="card">
+			<h3>Knižnica jedálničkov</h3>
+			<div class="list" v-if="filteredMeals.length > 0">
+				<RouterLink
+					v-for="meal in filteredMeals"
+					:key="meal.meal_id"
+					:to="{ name: 'meal-detail', params: { mealId: meal.meal_id } }"
+					class="list-row"
+				>
+					<div>
+						<strong>{{ meal.name }}</strong>
+						<p>{{ MEAL_TYPE_LABELS_SK[meal.meal_type] }}</p>
+					</div>
+					<div class="list-row__meta">{{ meal.totals?.kcal ?? 0 }} kcal</div>
+				</RouterLink>
+			</div>
+			<p v-else class="empty-state">Zatiaľ nemáš žiadne jedálničky.</p>
+		</section>
+	</section>
+</template>
diff --git a/frontend/src/views/SettingsView.vue b/frontend/src/views/SettingsView.vue
new file mode 100644
index 0000000..cec4f74
--- /dev/null
+++ b/frontend/src/views/SettingsView.vue
@@ -0,0 +1,22 @@
+<script setup lang="ts">
+import { useRouter } from 'vue-router'
+import { useAuthStore } from '@/stores/auth'
+
+const router = useRouter()
+const auth = useAuthStore()
+
+const onLogout = async () => {
+	await auth.logout()
+	await router.replace({ name: 'auth' })
+}
+</script>
+
+<template>
+	<section class="page">
+		<section class="card settings-card">
+			<h3>Nastavenia účtu</h3>
+			<p v-if="auth.userEmail">Prihlásený používateľ: <strong>{{ auth.userEmail }}</strong></p>
+			<button class="btn btn-danger" type="button" @click="onLogout">Odhlásiť sa</button>
+		</section>
+	</section>
+</template>
diff --git a/frontend/src/views/StatsView.vue b/frontend/src/views/StatsView.vue
new file mode 100644
index 0000000..3fa27b7
--- /dev/null
+++ b/frontend/src/views/StatsView.vue
@@ -0,0 +1,8 @@
+<template>
+	<section class="page">
+		<section class="card">
+			<h3>Štatistiky</h3>
+			<p>Základný prehľad bude doplnený v ďalšej iterácii.</p>
+		</section>
+	</section>
+</template>
diff --git a/frontend/src/views/TodayView.vue b/frontend/src/views/TodayView.vue
new file mode 100644
index 0000000..7e4afda
--- /dev/null
+++ b/frontend/src/views/TodayView.vue
@@ -0,0 +1,93 @@
+<script setup lang="ts">
+import { computed, onMounted, ref, watch } from 'vue'
+import { useRoute, useRouter } from 'vue-router'
+import DayMealCard from '@/components/today/DayMealCard.vue'
+import DayTotalsCard from '@/components/today/DayTotalsCard.vue'
+import { useDiaryStore } from '@/stores/diary'
+import { useMealsStore } from '@/stores/meals'
+import { MEAL_TYPES, MEAL_TYPE_LABELS_SK, type MealType } from '@/types/domain'
+import { todayISO } from '@/utils/date'
+
+const route = useRoute()
+const router = useRouter()
+const diaryStore = useDiaryStore()
+const mealsStore = useMealsStore()
+
+const isWorking = ref(false)
+const selectedDate = ref(todayISO())
+
+const resolveDate = (): string => {
+	const dateFromRoute = typeof route.params.date === 'string' ? route.params.date : ''
+	return dateFromRoute.length > 0 ? dateFromRoute : todayISO()
+}
+
+const reloadDay = async (date: string) => {
+	selectedDate.value = date
+	diaryStore.ensureCurrentDay(date)
+	isWorking.value = true
+	try {
+		if (mealsStore.list.length <= 0) {
+			await mealsStore.loadMeals()
+		}
+		await diaryStore.loadDay(date)
+	} finally {
+		isWorking.value = false
+	}
+}
+
+watch(
+	() => route.params.date,
+	async () => {
+		await reloadDay(resolveDate())
+	},
+)
+
+onMounted(async () => {
+	await reloadDay(resolveDate())
+})
+
+const onDateChange = async () => {
+	await router.replace({ name: 'today', params: { date: selectedDate.value } })
+}
+
+const onSelectMeal = async (mealType: MealType, mealId: number | null) => {
+	if (mealId === null) {
+		await diaryStore.unsetMealForType(selectedDate.value, mealType)
+		return
+	}
+	await diaryStore.setMealForType(selectedDate.value, mealType, mealId)
+}
+
+const dayMeals = computed(() => diaryStore.mealsByType)
+const dayTotals = computed(() => diaryStore.computedTotals)
+</script>
+
+<template>
+	<section class="page">
+		<div class="page-header">
+			<label class="filter-control">
+				<span>Dátum</span>
+				<input v-model="selectedDate" class="input-date" type="date" @change="onDateChange" />
+			</label>
+		</div>
+
+		<div v-if="isWorking || diaryStore.loading" class="card">Načítavam deň...</div>
+
+		<template v-else>
+			<div class="grid-three">
+				<DayMealCard
+					v-for="mealType in MEAL_TYPES"
+					:key="mealType"
+					:meal-type="mealType"
+					:label="MEAL_TYPE_LABELS_SK[mealType]"
+					:meal-options="diaryStore.selectedMealOptions[mealType]"
+					:selected-meal-id="diaryStore.selectedMealId(mealType)"
+					:meal="dayMeals[mealType]"
+					@select-meal="onSelectMeal"
+				/>
+			</div>
+
+			<DayTotalsCard :totals="dayTotals" />
+		</template>
+	</section>
+</template>