API: allow free access to audio files; create the article_service

api/app/domain/models/translated_article.py

@@ -0,0 +1,15 @@
+from dataclasses import dataclass
+
+@dataclass 
+class TranslatedArticle:
+    id: str 
+
+    source_lang: str 
+    source_title: str 
+    source_text: str
+
+    target_lang: str 
+    target_title: str
+    target_text: str
+
+

api/app/domain/services/article_service.py

@@ -0,0 +1,30 @@
+import re 
+
+from ..models.summarise_job import SummariseJob
+from ..models.translated_article import TranslatedArticle
+
+def first_heading(md: str) -> str | None:
+    m = re.search(r'^#{1,2}\s+(.+)', md, re.MULTILINE)
+    return m.group(1).strip() if m else None
+
+class ArticleService:
+    def __init__(self, summarise_job_repository):
+        self.summarise_job_repository = summarise_job_repository
+
+    async def get_all_articles(self) -> list[TranslatedArticle]:
+        summarise_jobs = await self.summarise_job_repository.list_all()
+        return summarise_jobs.map(self.summarise_job_to_translated_article)
+
+    def summarise_job_to_translated_article(
+        self,
+        summarise_job: SummariseJob,
+    ) -> TranslatedArticle:
+        return TranslatedArticle(
+            id=summarise_job.id,
+            source_lang=summarise_job.target_language,  # The source language for the article is the target language of the job
+            source_title=first_heading(summarise_job.translated_text) or "",
+            source_text=summarise_job.translated_text,
+            target_lang=summarise_job.source_language,  # The target language for the article is the source language of the job
+            target_title=first_heading(summarise_job.generated_text) or "",
+            target_text=summarise_job.generated_text,
+        )

api/app/main.py

@@ -8,6 +8,7 @@ from .routers.api import jobs
 from .routers import auth as auth_router
 from .routers import media as media_router
 from .routers.api.main import api_router
+from .routers.bff.main import bff_router
 from .storage import ensure_bucket_exists
 from . import worker
 
@@ -27,6 +28,7 @@ async def lifespan(app: FastAPI):
 app = FastAPI(title="Language Learning API", lifespan=lifespan)
 
 app.include_router(api_router)
+app.include_router(bff_router)
 app.include_router(auth_router.router)
 app.include_router(media_router.router)
 

api/app/outbound/postgres/database.py

@@ -11,6 +11,6 @@ class Base(DeclarativeBase):
     pass
 
 
-async def get_db():
+async def get_db() -> AsyncSession:
     async with AsyncSessionLocal() as session:
         yield session

api/app/outbound/postgres/repositories/summarise_job_repository.py

@@ -5,7 +5,51 @@ from sqlalchemy import select
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from ..entities.summarise_job_entity import SummariseJobEntity
+from ....domain.models.summarise_job import SummariseJob
 
+class PostgresSummariseJobRepository:
+    def __init__(self, db: AsyncSession):
+        self.db = db
+
+    async def list_all(self) -> list[SummariseJob]:
+        result = self.db.execute(
+            select(SummariseJobEntity).order_by(SummariseJobEntity.created_at.desc())
+        )
+
+        return list(result.scalars().all()).map(self.entity_to_model)
+
+    async def get_by_audio_url(
+        self,
+        audio_url: str
+    ) -> SummariseJob | None:
+        result = await self.db.execute(
+            select(SummariseJobEntity).where(
+                SummariseJobEntity.audio_url == audio_url
+            )
+        )
+
+        return self.entity_to_model(result.scalar_one_or_none())
+
+    def entity_to_model(self, entity: SummariseJobEntity | None) -> SummariseJob:
+        if entity is None:
+            return None
+
+        return SummariseJob(
+            id=str(entity.id),
+            user_id=str(entity.user_id),
+            status=entity.status,
+            source_language=entity.source_language,
+            target_language=entity.target_language,
+            complexity_level=entity.complexity_level,
+            input_summary=entity.input_summary,
+            generated_text=entity.generated_text,
+            translated_text=entity.translated_text,
+            error_message=entity.error_message,
+            audio_url=entity.audio_url,
+            created_at=entity.created_at,
+            started_at=entity.started_at,
+            completed_at=entity.completed_at,
+        )
 
 async def update(db: AsyncSession, job: SummariseJobEntity) -> None:
     await db.commit()
@@ -41,18 +85,6 @@ async def list_all(db: AsyncSession) -> list[SummariseJobEntity]:
     return list(result.scalars().all())
 
 
-async def get_by_audio_url_and_user(
-    db: AsyncSession, audio_url: str, user_id: uuid.UUID
-) -> SummariseJobEntity | None:
-    result = await db.execute(
-        select(SummariseJobEntity).where(
-            SummariseJobEntity.audio_url == audio_url,
-            SummariseJobEntity.user_id == user_id,
-        )
-    )
-    return result.scalar_one_or_none()
-
-
 async def mark_processing(db: AsyncSession, job: SummariseJobEntity) -> None:
     job.status = "processing"
     job.started_at = datetime.now(timezone.utc)

api/app/routers/api/generation.py

@@ -23,7 +23,6 @@ class GenerationRequest(BaseModel):
     target_language: str
     complexity_level: str
     input_texts: list[str]
-    topic: str | None = None
     source_language: str = "en"
 
 

api/app/routers/bff/articles.py

@@ -0,0 +1,30 @@
+from fastapi import APIRouter, Depends, HTTPException
+from pydantic import BaseModel
+
+from ...domain.services.article_service import ArticleService
+from ...outbound.postgres.database import get_db, AsyncSessionLocal
+from ...outbound.postgres.repositories.summarise_job_repository import PostgresSummariseJobRepository
+
+
+router = APIRouter(prefix="/articles", tags=["articles"])
+
+
+class ArticleResponse(BaseModel):
+    target_language: str
+    complexity_level: str
+    input_texts: list[str]
+
+class ArticlesResponse(BaseModel):
+    articles: list[ArticleResponse]
+
+@router.get("", response_model=ArticlesResponse, status_code=200)
+async def get_articles(
+    db = Depends(get_db),
+) -> ArticlesResponse:
+    service = ArticleService(PostgresSummariseJobRepository(db))
+
+    try:
+        articles = await service.get_all_articles()
+        return ArticlesResponse(articles=articles)
+    except Exception as e:
+        raise HTTPException(status_code=500, detail=str(e))

api/app/routers/bff/main.py

@@ -0,0 +1,7 @@
+from .articles import router as article_router
+
+from fastapi import APIRouter
+
+bff_router = APIRouter(prefix="/bff", tags=["bff"])
+
+bff_router.include_router(article_router)

api/app/routers/media.py

@@ -7,7 +7,7 @@ from botocore.exceptions import ClientError
 
 from ..auth import verify_token
 from ..outbound.postgres.database import get_db
-from ..outbound.postgres.repositories import summarise_job_repository
+from ..outbound.postgres.repositories.summarise_job_repository import PostgresSummariseJobRepository
 from ..storage import download_audio
 
 router = APIRouter(prefix="/media", tags=["media"])
@@ -17,11 +17,10 @@ router = APIRouter(prefix="/media", tags=["media"])
 async def get_media_file(
     filename: str,
     db: AsyncSession = Depends(get_db),
-    token_data: dict = Depends(verify_token),
 ) -> Response:
-    user_id = uuid.UUID(token_data["sub"])
+    repository = PostgresSummariseJobRepository(db)
+    job = await repository.get_by_audio_url(filename)
 
-    job = await summarise_job_repository.get_by_audio_url_and_user(db, filename, user_id)
     if job is None:
         raise HTTPException(status_code=404, detail="File not found")
 

frontend/design.md

@@ -0,0 +1,109 @@
+# Design System Document: Language Learning App
+
+## 1. Overview & Creative North Star
+
+**Creative North Star: The Digital Archivist**
+
+This design system rejects the frantic, "attention-economy" aesthetic of modern web apps. Instead, it draws inspiration from high-end printed journals and architectural minimalism. The goal is to create a "Digital Paper" experience that honours the act of reading.
+
+We break the standard "SaaS dashboard" template by using intentional asymmetry and high-contrast typographic scales.
+
+Layouts with multiple sources of information should feel like a well-composed magazine spread: large, sweeping areas of `surface` punctuated by tight, authoritative `label` groupings. We do not fill space; we curate it.
+
+Layouts which are focused on content, e.g. reading or listening, should feel focused and intentional.
+
+---
+
+## 2. Colors: The Palette of Focus
+
+Our palette is rooted in organic, desaturated tones that reduce eye strain and promote deep work.
+
+- **Primary (`#516356`)**: A muted Forest Green. This is our singular "Action" voice. Use it sparingly to guide the eye, not to shout.
+
+- **The "No-Line" Rule**: You are strictly prohibited from using 1px solid borders to define sections. Layout boundaries are created exclusively through background shifts. For example, a `surface-container-low` (`#f4f4ef`) sidebar sitting against a `surface` (`#faf9f5`) main body.
+
+- **Nesting & Layers**: Treat the UI as stacked sheets of fine vellum. Use `surface-container-lowest` (`#ffffff`) for the most elevated elements (like an active reading pane) and `surface-dim` (`#d6dcd2`) for recessed utility areas.
+
+- **The "Glass & Gradient" Rule**: To prevent the UI from feeling "dead," use subtle radial gradients on hero backgrounds (transitioning from `surface` to `surface-container-low`). For floating navigation, apply `surface` colors at 80% opacity with a `24px` backdrop-blur to create a "frosted glass" effect that lets the content bleed through softly.
+
+---
+
+## 3. Typography: The Editorial Engine
+
+Typography is the primary visual asset. We use a sophisticated pairing of **Archivo** (Sans-serif) for functional UI and **Newsreader** (Serif) for the reading experience.
+
+- **Display & Headline (Archivo)**: These are your "Wayfinders." Use `display-lg` (3.5rem) with tight letter-spacing for article titles to create an authoritative, architectural feel.
+
+- **Body (Newsreader)**: This is the soul of the system. `body-lg` (1rem) is the standard for long-form reading. It must have a line-height of at least 1.6 to ensure the "Digital Paper" feel.
+
+- **Labels (Inter)**: Use `label-md` in all-caps with a `0.05rem` letter-spacing for metadata (e.g., "READING TIME," "DATE SAVED"). This creates a stark, functional contrast to the fluid Serif body text.
+
+---
+
+## 4. Elevation & Depth: Tonal Layering
+
+We do not use shadows to mimic light; we use tone to mimic physical presence.
+
+- **The Layering Principle**: If a card needs to stand out, do not add a shadow. Instead, change its background to `surface-container-lowest` and place it on a `surface-container` background. The 2-step tonal shift provides all the clarity needed.
+
+- **Ambient Shadows**: If a component _must_ float (like a mobile action button), use a "Tonal Shadow": `color: on-surface` at 5% opacity, with a `32px` blur and `8px` Y-offset. It should look like a soft smudge of graphite, not a digital drop shadow.
+
+- **The "Ghost Border"**: If a button needs a stroke for accessibility, use `outline-variant` (`#afb3ac`) at 20% opacity. If you can see the line clearly, it’s too dark.
+
+---
+
+## 5. Components: Functional Minimalism
+
+### Buttons
+
+- **Primary**: Background `primary` (`#516356`), text `on_primary` (`#e9fded`). Corner radius `md` (`0.375rem`). No border.
+
+- **Secondary**: Background `secondary_container` (`#dde4de`), text `on_secondary_container`.
+
+- **Tertiary/Ghost**: No background. Text `primary`. Use only `label-md` typography.
+
+### Input Fields
+
+- **Style**: Forgo the "box" look. Use a `surface-container-high` background with a bottom-only "Ghost Border."
+
+- **States**: On focus, the bottom border transitions to `primary` (`#516356`) with a width of 2px.
+
+### Cards & Lists
+
+- **The "No-Divider" Rule**: Forbid the use of horizontal rules (`
+
+`). Separate list items using the`3`(1rem) or`4` (1.4rem) spacing tokens.
+
+- **Structure**: Group items using subtle background shifts. An active list item should move from `surface` to `surface-container-lowest`.
+
+### The "Reading Progress" Component (System Specific)
+
+- A thin, 2px bar using `primary` that sits at the very top of the viewport. As the user scrolls, it grows. No container or background for the bar—it should look like a thread laying on the paper.
+
+---
+
+## 6. Do’s and Don’ts
+
+### Do
+
+- **Do** use asymmetrical margins. For example, give the main text column a 20% left margin and a 30% right margin to create a sophisticated, editorial layout.
+
+- **Do** use design tokens and CSS Custom Properties (variables)
+
+- **Do** extract re-usable components into `app.css` so that styles can be used in multiple page.
+
+- **Do** prioritize the `16` (5.5rem) spacing token for top-of-page "breathability."
+
+- **Do** use `primary_container` for subtle highlighting of text within an article.
+
+- **Do** create responsive layouts, preferably using @container queries.
+
+### Don’t
+
+- **Don’t** use pure black `#000000`. Use `on_surface` (`#2f342e`) for all high-contrast text.
+
+- **Don’t** use icons unless absolutely necessary. Prefer text labels (`label-md`) to ensure the "Digital Paper" aesthetic remains unbroken.
+
+- **Don’t** use "Pop-up" modals that cover the whole screen. Use "Slide-over" panels that use the `surface-container-highest` tone to maintain the sense of a physical stack.
+
+- **Don't** Over-use utility classes.

frontend/src/app.css

@@ -0,0 +1,394 @@
+/* ==========================================================================
+   Design System: The Editorial Stillness
+   ========================================================================== */
+
+/* --------------------------------------------------------------------------
+   Fonts
+   -------------------------------------------------------------------------- */
+
+@font-face {
+  font-family: archivo; /* set name */
+  src: url('/fonts/Archivo-Medium.woff2'); /* url of the font */
+  font-weight: 500;
+}
+
+@font-face {
+  font-family: archivo; /* set name */
+  src: url('/fonts/Archivo-Regular.woff2'); /* url of the font */
+  font-weight: normal;
+}
+
+
+/* --------------------------------------------------------------------------
+   Design Tokens
+   -------------------------------------------------------------------------- */
+
+:root {
+
+  /* --- Color: Primary --- */
+  --color-primary:              #516356;
+  --color-on-primary:           #e9fded;
+  --color-primary-container:    #c8d8c8;
+  --color-on-primary-container: #2f342e;
+
+  /* --- Color: Secondary --- */
+  --color-secondary-container:    #dde4de;
+  --color-on-secondary-container: #2f342e;
+
+  /* --- Color: Surface Hierarchy (light → dark = elevated → recessed) --- */
+  --color-surface-container-lowest: #ffffff;   /* most elevated */
+  --color-surface-container-low:    #f4f4ef;
+  --color-surface:                  #faf9f5;   /* base */
+  --color-surface-container:        #eeede9;
+  --color-surface-container-high:   #e8e8e3;
+  --color-surface-container-highest:#e2e1dd;
+  --color-surface-dim:              #d6dcd2;   /* recessed utility */
+
+  /* --- Color: On-Surface --- */
+  --color-on-surface:         #2f342e;   /* replaces pure black */
+  --color-on-surface-variant: #5c605b;
+
+  /* --- Color: Outline --- */
+  --color-outline:         #8c908b;
+  --color-outline-variant: #afb3ac;   /* use at 20% opacity as "ghost border" */
+
+  /* --- Typography: Font Families --- */
+  --font-display:  'archivo', sans-serif;
+  --font-body:     'Newsreader', serif;
+  --font-label:    'Inter', sans-serif;
+
+  /* --- Typography: Scale --- */
+  --text-display-lg:  3.5rem;    /* article titles */
+  --text-display-md:  2.75rem;
+  --text-display-sm:  2.25rem;
+  --text-headline-lg: 1.875rem;
+  --text-headline-md: 1.5rem;
+  --text-headline-sm: 1.25rem;
+  --text-title-lg:    1.125rem;
+  --text-title-md:    1rem;
+  --text-body-lg:     1rem;      /* long-form reading standard */
+  --text-body-md:     0.9375rem;
+  --text-body-sm:     0.875rem;
+  --text-label-lg:    0.875rem;
+  --text-label-md:    0.75rem;   /* metadata, all-caps */
+  --text-label-sm:    0.6875rem;
+
+  /* --- Typography: Weights --- */
+  --weight-light:    300;
+  --weight-regular:  400;
+  --weight-medium:   500;
+  --weight-semibold: 600;
+  --weight-bold:     700;
+
+  /* --- Typography: Line Height --- */
+  --leading-tight:    1.2;
+  --leading-snug:     1.375;
+  --leading-normal:   1.5;
+  --leading-relaxed:  1.6;   /* "Digital Paper" body text minimum */
+  --leading-loose:    1.8;
+
+  /* --- Typography: Letter Spacing --- */
+  --tracking-tight:  -0.025em;
+  --tracking-normal:  0em;
+  --tracking-wide:    0.05rem;   /* label-md metadata */
+  --tracking-wider:   0.08rem;
+
+  /* --- Spacing Scale (base-4) --- */
+  --space-1:  0.25rem;    /*  4px */
+  --space-2:  0.5rem;     /*  8px */
+  --space-3:  1rem;       /* 16px — list item separation */
+  --space-4:  1.4rem;     /* ~22px — list item group separation */
+  --space-5:  1.75rem;    /* 28px */
+  --space-6:  2rem;       /* 32px */
+  --space-8:  3rem;       /* 48px */
+  --space-10: 4rem;       /* 64px */
+  --space-12: 4.5rem;     /* 72px */
+  --space-16: 5.5rem;     /* 88px — top-of-page breathability */
+
+  /* --- Border Radius --- */
+  --radius-xs:   0.125rem;
+  --radius-sm:   0.25rem;
+  --radius-md:   0.375rem;   /* primary button */
+  --radius-lg:   0.75rem;
+  --radius-xl:   1.25rem;
+  --radius-full: 9999px;
+
+  /* --- Elevation: Ambient "Tonal Shadow" --- */
+  --shadow-tonal-sm: 0 4px 16px 0 color-mix(in srgb, var(--color-on-surface) 5%, transparent);
+  --shadow-tonal-md: 0 8px 32px 0 color-mix(in srgb, var(--color-on-surface) 5%, transparent);
+
+  /* --- Motion --- */
+  --duration-fast:   100ms;
+  --duration-normal: 200ms;
+  --duration-slow:   400ms;
+  --ease-standard:   cubic-bezier(0.2, 0, 0, 1);
+
+  /* --- Glass / Frosted Effect --- */
+  --glass-bg:   color-mix(in srgb, var(--color-surface) 80%, transparent);
+  --glass-blur: 24px;
+}
+
+/* --------------------------------------------------------------------------
+   Reset & Base
+   -------------------------------------------------------------------------- */
+
+*, *::before, *::after {
+  box-sizing: border-box;
+  margin: 0;
+  padding: 0;
+}
+
+html {
+  font-size: 16px;
+  -webkit-text-size-adjust: 100%;
+  scroll-behavior: smooth;
+}
+
+body {
+  font-family: var(--font-body);
+  font-size: var(--text-body-lg);
+  font-weight: var(--weight-regular);
+  line-height: var(--leading-relaxed);
+  color: var(--color-on-surface);
+  background-color: var(--color-surface);
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+}
+
+/* --------------------------------------------------------------------------
+   Typography Utilities
+   -------------------------------------------------------------------------- */
+
+.display-lg {
+  font-family: var(--font-display);
+  font-size: var(--text-display-lg);
+  font-weight: var(--weight-bold);
+  line-height: var(--leading-tight);
+  letter-spacing: var(--tracking-tight);
+}
+
+.headline-md {
+  font-family: var(--font-display);
+  font-size: var(--text-headline-md);
+  font-weight: var(--weight-semibold);
+  line-height: var(--leading-snug);
+}
+
+.label-md {
+  font-family: var(--font-label);
+  font-size: var(--text-label-md);
+  font-weight: var(--weight-medium);
+  letter-spacing: var(--tracking-wide);
+  text-transform: uppercase;
+}
+
+.link {
+  color: var(--color-primary);
+  text-decoration: none;
+  font-weight: var(--weight-medium);
+  transition: opacity var(--duration-fast) var(--ease-standard);
+}
+
+.link:hover {
+  opacity: 0.7;
+}
+
+/* --------------------------------------------------------------------------
+   Component: Form
+   -------------------------------------------------------------------------- */
+
+.form {
+  display: flex;
+  flex-direction: column;
+  gap: var(--space-4);
+}
+
+.form-header {
+  margin-bottom: var(--space-6);
+}
+
+.form-eyebrow {
+  font-family: var(--font-label);
+  font-size: var(--text-label-md);
+  font-weight: var(--weight-medium);
+  letter-spacing: var(--tracking-wide);
+  text-transform: uppercase;
+  color: var(--color-on-surface-variant);
+  margin-bottom: var(--space-1);
+}
+
+.form-title {
+  font-family: var(--font-display);
+  font-size: var(--text-headline-lg);
+  font-weight: var(--weight-semibold);
+  line-height: var(--leading-snug);
+  color: var(--color-on-surface);
+	}
+
+.form-footer {
+  display: flex;
+  align-items: center;
+  gap: var(--space-2);
+  margin-top: var(--space-6);
+  font-family: var(--font-label);
+  font-size: var(--text-body-sm);
+  color: var(--color-on-surface-variant);
+}
+
+/* --------------------------------------------------------------------------
+   Component: Button
+   -------------------------------------------------------------------------- */
+
+.btn {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  gap: var(--space-2);
+  padding: var(--space-2) var(--space-4);
+  border: none;
+  border-radius: var(--radius-md);
+  font-family: var(--font-display);
+  font-size: var(--text-label-lg);
+  font-weight: var(--weight-medium);
+  letter-spacing: var(--tracking-wide);
+  cursor: pointer;
+  text-decoration: none;
+  transition:
+    opacity var(--duration-normal) var(--ease-standard),
+    background-color var(--duration-normal) var(--ease-standard);
+}
+
+.btn-primary {
+  background-color: var(--color-primary);
+  color: var(--color-on-primary);
+}
+
+.btn-primary:hover {
+  opacity: 0.88;
+}
+
+.btn-secondary {
+  background-color: var(--color-secondary-container);
+  color: var(--color-on-secondary-container);
+}
+
+.btn-ghost {
+  background: none;
+  color: var(--color-primary);
+  padding-inline: var(--space-2);
+}
+
+/* --------------------------------------------------------------------------
+   Component: Input
+   -------------------------------------------------------------------------- */
+
+.field {
+  display: flex;
+  flex-direction: column;
+  gap: var(--space-1);
+}
+
+.field-label {
+  font-family: var(--font-label);
+  font-size: var(--text-label-md);
+  font-weight: var(--weight-medium);
+  letter-spacing: var(--tracking-wide);
+  text-transform: uppercase;
+  color: var(--color-on-surface-variant);
+}
+
+.field-input {
+  background-color: var(--color-surface-container-high);
+  color: var(--color-on-surface);
+  border: none;
+  border-bottom: 1px solid color-mix(in srgb, var(--color-outline-variant) 20%, transparent);
+  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
+  padding: var(--space-2) var(--space-3);
+  font-family: var(--font-body);
+  font-size: var(--text-body-lg);
+  line-height: var(--leading-normal);
+  outline: none;
+  width: 100%;
+  transition: border-color var(--duration-fast) var(--ease-standard);
+}
+
+.field-input::placeholder {
+  color: var(--color-outline-variant);
+}
+
+.field-input:focus {
+  border-bottom: 2px solid var(--color-primary);
+}
+
+.field-select {
+  background-color: var(--color-surface-container-high);
+  color: var(--color-on-surface);
+  border: none;
+  border-bottom: 1px solid color-mix(in srgb, var(--color-outline-variant) 20%, transparent);
+  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
+  padding: var(--space-2) var(--space-8) var(--space-2) var(--space-3);
+  font-family: var(--font-body);
+  font-size: var(--text-body-lg);
+  line-height: var(--leading-normal);
+  outline: none;
+  width: 100%;
+  cursor: pointer;
+  appearance: none;
+  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%235c605b' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
+  background-repeat: no-repeat;
+  background-position: right var(--space-3) center;
+  transition: border-color var(--duration-fast) var(--ease-standard);
+}
+
+.field-select:focus {
+  border-bottom: 2px solid var(--color-primary);
+}
+
+.field-textarea {
+  background-color: var(--color-surface-container-high);
+  color: var(--color-on-surface);
+  border: none;
+  border-bottom: 1px solid color-mix(in srgb, var(--color-outline-variant) 20%, transparent);
+  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
+  padding: var(--space-2) var(--space-3);
+  font-family: var(--font-body);
+  font-size: var(--text-body-lg);
+  line-height: var(--leading-relaxed);
+  outline: none;
+  width: 100%;
+  min-height: 14rem;
+  resize: vertical;
+  transition: border-color var(--duration-fast) var(--ease-standard);
+}
+
+.field-textarea::placeholder {
+  color: var(--color-outline-variant);
+}
+
+.field-textarea:focus {
+  border-bottom: 2px solid var(--color-primary);
+}
+
+.field-hint {
+  font-family: var(--font-label);
+  font-size: var(--text-label-md);
+  color: var(--color-on-surface-variant);
+  margin-top: var(--space-1);
+}
+
+/* --------------------------------------------------------------------------
+   Component: Alert
+   -------------------------------------------------------------------------- */
+
+.alert {
+  padding: var(--space-3);
+  border-radius: var(--radius-md);
+  font-family: var(--font-label);
+  font-size: var(--text-body-sm);
+}
+
+.alert-error {
+  background-color: color-mix(in srgb, #b3261e 10%, var(--color-surface));
+  color: #b3261e;
+  border-left: 3px solid #b3261e;
+}

frontend/src/hooks.server.ts

@@ -1,13 +1,42 @@
-import type { Handle } from '@sveltejs/kit';
+import { createHmac, timingSafeEqual } from 'crypto';
+import { redirect, type Handle } from '@sveltejs/kit';
+import { PRIVATE_JWT_SECRET } from '$env/static/private';
 import { client } from './lib/apiClient.ts';
 
+function verifyJwt(token: string, secret: string): boolean {
+	try {
+		const parts = token.split('.');
+		if (parts.length !== 3) return false;
+		const [header, payload, sig] = parts;
+
+		const expected = createHmac('sha256', secret)
+			.update(`${header}.${payload}`)
+			.digest('base64url');
+
+		const expectedBuf = Buffer.from(expected);
+		const sigBuf = Buffer.from(sig);
+		if (expectedBuf.length !== sigBuf.length) return false;
+		if (!timingSafeEqual(expectedBuf, sigBuf)) return false;
+
+		const claims = JSON.parse(Buffer.from(payload, 'base64url').toString('utf8'));
+		if (claims.exp && claims.exp < Date.now() / 1000) return false;
+
+		return true;
+	} catch {
+		return false;
+	}
+}
+
 export const handle: Handle = async ({ event, resolve }) => {
 	event.locals.apiClient = client;
 
-	const authToken = event.cookies.get('auth_token');
-	event.locals.authToken = authToken || null;
+	const rawToken = event.cookies.get('auth_token');
+	const isValid = rawToken ? verifyJwt(rawToken, PRIVATE_JWT_SECRET) : false;
+	event.locals.authToken = isValid ? rawToken! : null;
 
-	const response = resolve(event);
+	if (event.url.pathname.startsWith('/app') && !isValid) {
+		return redirect(307, '/login');
+	}
 
-	return response;
+	return resolve(event);
 };

frontend/src/routes/+layout.svelte

@@ -1,5 +1,6 @@
 <script lang="ts">
 	import favicon from '$lib/assets/favicon.svg';
+	import '../app.css';
 
 	let { children } = $props();
 </script>

frontend/src/routes/app/+page.svelte

@@ -0,0 +1,6 @@
+<h1>App</h1>
+
+<menu>
+	<li><a href="/app/generate/summary">Generate Summary Job</a></li>
+	<li><a href="/app/jobs">Jobs</a></li>
+</menu>

frontend/src/routes/app/generate/summary/+page.server.ts

@@ -0,0 +1,39 @@
+import { fail, redirect, type Actions } from '@sveltejs/kit';
+import { createGenerationJobApiGeneratePost } from '../../../../client/sdk.gen.ts';
+import type { HttpValidationError } from '../../../../client/types.gen.ts';
+
+export const actions = {
+	default: async ({ request, locals }) => {
+		const formData = await request.formData();
+		const target_language = formData.get('target_language') as string;
+		const source_language = formData.get('source_language') as string;
+		const complexity_level = formData.get('complexity_level') as string;
+		const input_texts_raw = formData.get('input_texts') as string;
+
+		const input_texts = input_texts_raw
+			.split(/\n?---\n?/)
+			.map((t) => t.trim())
+			.filter(Boolean);
+
+		const values = { target_language, source_language, complexity_level, input_texts_raw };
+
+		const { response, data } = await createGenerationJobApiGeneratePost({
+			headers: { Authorization: `Bearer ${locals.authToken}` },
+			body: { target_language, source_language, complexity_level, input_texts }
+		});
+
+		if (response.status === 202 && data) {
+			return redirect(303, `/app/jobs/${data.job_id}`);
+		}
+
+		let error = 'Something went wrong. Please try again.';
+		if (data && typeof data === 'object' && 'detail' in data) {
+			const detail = (data as HttpValidationError).detail;
+			if (Array.isArray(detail) && detail.length > 0) {
+				error = detail[0].msg;
+			}
+		}
+
+		return fail(response.status, { error, values });
+	}
+} satisfies Actions;

frontend/src/routes/app/generate/summary/+page.svelte

@@ -0,0 +1,152 @@
+<script lang="ts">
+	import type { PageProps } from './$types';
+
+	let { form }: PageProps = $props();
+
+	const languages = [
+		{ value: 'en', label: 'English' },
+		{ value: 'fr', label: 'French' },
+		{ value: 'es', label: 'Spanish' },
+		{ value: 'it', label: 'Italian' },
+		{ value: 'de', label: 'German' }
+	];
+
+	const complexityLevels = ['A1', 'A2', 'B1', 'B2', 'C1', 'C2'];
+</script>
+
+<div class="page">
+	<header class="page-header">
+		<p class="form-eyebrow">Generation</p>
+		<h1 class="form-title">New Summary</h1>
+	</header>
+
+	<main class="content">
+		{#if form?.error}
+			<div class="alert alert-error" role="alert">{form.error}</div>
+		{/if}
+
+		<form method="POST" class="form">
+			<div class="field-row">
+				<div class="field">
+					<label for="source_language" class="field-label">Source Language</label>
+					<select
+						id="source_language"
+						name="source_language"
+						class="field-select"
+						required
+					>
+						{#each languages as lang}
+							<option
+								value={lang.value}
+								selected={form?.values?.source_language === lang.value || (!form && lang.value === 'en')}
+							>{lang.label}</option>
+						{/each}
+					</select>
+				</div>
+
+				<div class="field">
+					<label for="target_language" class="field-label">Target Language</label>
+					<select
+						id="target_language"
+						name="target_language"
+						class="field-select"
+						required
+					>
+						{#each languages as lang}
+							<option
+								value={lang.value}
+								selected={form?.values?.target_language === lang.value || (!form && lang.value === 'fr')}
+							>{lang.label}</option>
+						{/each}
+					</select>
+				</div>
+
+				<div class="field">
+					<label for="complexity_level" class="field-label">Complexity Level</label>
+					<select
+						id="complexity_level"
+						name="complexity_level"
+						class="field-select"
+						required
+					>
+						{#each complexityLevels as level}
+							<option
+								value={level}
+								selected={form?.values?.complexity_level === level || (!form && level === 'B1')}
+							>{level}</option>
+						{/each}
+					</select>
+				</div>
+			</div>
+
+			<div class="field">
+				<label for="input_texts" class="field-label">Input Texts</label>
+				<textarea
+					id="input_texts"
+					name="input_texts"
+					class="field-textarea"
+					placeholder="Paste your source text here…"
+					required
+				>{form?.values?.input_texts_raw ?? ''}</textarea>
+				<p class="field-hint">Separate multiple texts with a line containing only <code>---</code></p>
+			</div>
+
+			<div class="form-actions">
+				<button type="submit" class="btn btn-primary">Generate Summary</button>
+			</div>
+		</form>
+	</main>
+</div>
+
+<style>
+	.page {
+		max-width: 52rem;
+		margin: 0 auto;
+		padding: var(--space-8) var(--space-6);
+	}
+
+	.page-header {
+		margin-bottom: var(--space-8);
+	}
+
+	.content {
+		display: flex;
+		flex-direction: column;
+		gap: var(--space-5);
+	}
+
+	.field-row {
+		display: grid;
+		grid-template-columns: repeat(3, 1fr);
+		gap: var(--space-4);
+	}
+
+	.form-actions {
+		display: flex;
+		justify-content: flex-end;
+		padding-top: var(--space-2);
+	}
+
+	.form-actions .btn {
+		padding-block: var(--space-3);
+		padding-inline: var(--space-6);
+	}
+
+	code {
+		font-family: var(--font-label);
+		font-size: var(--text-label-md);
+		background-color: var(--color-surface-container-highest);
+		padding: 0.1em 0.4em;
+		border-radius: var(--radius-xs);
+	}
+
+	@media (max-width: 640px) {
+		.page {
+			padding: var(--space-6) var(--space-4);
+		}
+
+		.field-row {
+			grid-template-columns: 1fr;
+		}
+	}
+</style>

frontend/src/routes/app/jobs/+page.server.ts

@@ -0,0 +1,28 @@
+import type { PageServerLoad } from './$types';
+import { client } from '$lib/apiClient';
+import { getJobsApiJobsGet } from '../../../client/sdk.gen.ts';
+
+export const load: PageServerLoad = async ({ locals }) => {
+	const authToken = locals.authToken;
+	console.log({ authToken });
+	client.setConfig({
+		headers: {
+			Authorization: `Bearer ${authToken}`
+		}
+	});
+
+	const { data, error, response } = await getJobsApiJobsGet({
+		client
+	});
+
+	if (error !== undefined || data === undefined) {
+		return {
+			success: false,
+			error: error
+		};
+	}
+
+	return {
+		jobs: data.jobs
+	};
+};

frontend/src/routes/app/jobs/+page.svelte

@@ -0,0 +1,92 @@
+<script lang="ts">
+	import type { PageProps } from './$types';
+	import JobsList from './JobsList.svelte';
+
+	const { data }: PageProps = $props();
+</script>
+
+<div class="page">
+	<header class="page-header">
+		<div class="header-row">
+			<div>
+				<p class="form-eyebrow">History</p>
+				<h1 class="form-title">Jobs</h1>
+			</div>
+			<a href="/app/generate/summary" class="btn btn-primary">New Summary</a>
+		</div>
+	</header>
+
+	{#if data.jobs && data.jobs.length > 0}
+		<JobsList jobs={data.jobs} />
+	{:else if data.jobs}
+		<div class="empty-state">
+			<p class="empty-heading">No jobs yet</p>
+			<p class="empty-body">Generate your first summary to see it here.</p>
+			<a href="/app/generate/summary" class="btn btn-secondary">Get started</a>
+		</div>
+	{:else}
+		<div class="alert alert-error" role="alert">Failed to load jobs. Please try refreshing.</div>
+	{/if}
+</div>
+
+<style>
+	.page {
+		max-width: 52rem;
+		margin: 0 auto;
+		padding: var(--space-8) var(--space-6);
+		display: flex;
+		flex-direction: column;
+		gap: var(--space-6);
+	}
+
+	.header-row {
+		display: flex;
+		align-items: flex-end;
+		justify-content: space-between;
+		gap: var(--space-4);
+		flex-wrap: wrap;
+	}
+
+	.header-row .btn {
+		padding-block: var(--space-2);
+		white-space: nowrap;
+	}
+
+	/* --- Empty state --- */
+
+	.empty-state {
+		display: flex;
+		flex-direction: column;
+		align-items: center;
+		gap: var(--space-3);
+		padding: var(--space-10) var(--space-6);
+		text-align: center;
+		background-color: var(--color-surface-container-low);
+		border-radius: var(--radius-xl);
+	}
+
+	.empty-heading {
+		font-family: var(--font-display);
+		font-size: var(--text-title-lg);
+		font-weight: var(--weight-semibold);
+		color: var(--color-on-surface);
+	}
+
+	.empty-body {
+		font-size: var(--text-body-md);
+		color: var(--color-on-surface-variant);
+		max-width: 20rem;
+	}
+
+	.empty-state .btn {
+		margin-top: var(--space-2);
+		padding-block: var(--space-2);
+		padding-inline: var(--space-5);
+	}
+
+	@media (max-width: 640px) {
+		.page {
+			padding: var(--space-6) var(--space-4);
+		}
+	}
+</style>

frontend/src/routes/app/jobs/JobsList.svelte

@@ -0,0 +1,146 @@
+<script lang="ts">
+	import type { JobSummary } from '../../../client/types.gen.ts';
+
+	interface Props {
+		jobs: JobSummary[];
+	}
+
+	const { jobs }: Props = $props();
+
+	const fmt = (iso: string) =>
+		new Intl.DateTimeFormat('en-GB', {
+			year: 'numeric', month: 'short', day: 'numeric',
+			hour: '2-digit', minute: '2-digit'
+		}).format(new Date(iso));
+</script>
+
+<ul class="jobs-list" role="list">
+	{#each jobs as job (job.id)}
+		<li class="job-row">
+			<a href={`/app/jobs/${job.id}`} class="job-link">
+				<span class="status-badge" data-status={job.status}>{job.status}</span>
+				<span class="job-date">{fmt(job.created_at)}</span>
+				<span class="job-id">{job.id}</span>
+				<span class="job-arrow" aria-hidden="true">→</span>
+			</a>
+		</li>
+	{/each}
+</ul>
+
+<style>
+	.jobs-list {
+		list-style: none;
+		display: flex;
+		flex-direction: column;
+		border: 1px solid color-mix(in srgb, var(--color-outline-variant) 30%, transparent);
+		border-radius: var(--radius-lg);
+		overflow: hidden;
+	}
+
+	.job-row + .job-row {
+		border-top: 1px solid color-mix(in srgb, var(--color-outline-variant) 30%, transparent);
+	}
+
+	.job-link {
+		display: grid;
+		grid-template-columns: auto 1fr 1fr auto;
+		align-items: center;
+		gap: var(--space-4);
+		padding: var(--space-3) var(--space-5);
+		text-decoration: none;
+		color: inherit;
+		background-color: var(--color-surface-container-lowest);
+		transition: background-color var(--duration-fast) var(--ease-standard);
+	}
+
+	.job-link:hover {
+		background-color: var(--color-surface-container-low);
+	}
+
+	/* --- Status badge --- */
+
+	.status-badge {
+		display: inline-block;
+		padding: 0.2em 0.75em;
+		border-radius: var(--radius-full);
+		font-family: var(--font-label);
+		font-size: var(--text-label-md);
+		font-weight: var(--weight-medium);
+		letter-spacing: var(--tracking-wide);
+		text-transform: uppercase;
+		background-color: var(--color-secondary-container);
+		color: var(--color-on-secondary-container);
+		white-space: nowrap;
+	}
+
+	.status-badge[data-status="completed"] {
+		background-color: var(--color-primary-container);
+		color: var(--color-on-primary-container);
+	}
+
+	.status-badge[data-status="failed"] {
+		background-color: color-mix(in srgb, #b3261e 12%, var(--color-surface));
+		color: #b3261e;
+	}
+
+	/* --- Row text --- */
+
+	.job-date {
+		font-family: var(--font-label);
+		font-size: var(--text-body-sm);
+		color: var(--color-on-surface);
+	}
+
+	.job-id {
+		font-family: var(--font-label);
+		font-size: var(--text-label-md);
+		color: var(--color-on-surface-variant);
+		overflow: hidden;
+		text-overflow: ellipsis;
+		white-space: nowrap;
+	}
+
+	.job-arrow {
+		font-family: var(--font-label);
+		font-size: var(--text-label-lg);
+		color: var(--color-outline);
+		transition: color var(--duration-fast) var(--ease-standard);
+	}
+
+	.job-link:hover .job-arrow {
+		color: var(--color-primary);
+	}
+
+	/* --- Responsive --- */
+
+	@media (max-width: 640px) {
+		.job-link {
+			grid-template-columns: auto 1fr auto;
+			grid-template-rows: auto auto;
+			gap: var(--space-2) var(--space-3);
+			padding: var(--space-3) var(--space-4);
+		}
+
+		.job-date {
+			grid-column: 2;
+			grid-row: 1;
+		}
+
+		.status-badge {
+			grid-column: 1;
+			grid-row: 1 / 3;
+			align-self: center;
+		}
+
+		.job-id {
+			grid-column: 2;
+			grid-row: 2;
+		}
+
+		.job-arrow {
+			grid-column: 3;
+			grid-row: 1 / 3;
+			align-self: center;
+		}
+	}
+</style>

frontend/src/routes/app/jobs/[job_id]/+page.server.ts

@@ -0,0 +1,17 @@
+import { error, type ServerLoad } from '@sveltejs/kit';
+import { getJobApiJobsJobIdGet } from '../../../../client/sdk.gen.ts';
+import { PUBLIC_API_BASE_URL } from '$env/static/public';
+
+export const load: ServerLoad = async ({ params, locals }) => {
+	const { data, response } = await getJobApiJobsJobIdGet({
+		headers: { Authorization: `Bearer ${locals.authToken ?? ''}` },
+		path: { job_id: params.job_id }
+	});
+
+	if (!data || response.status !== 200) {
+		error(response.status === 404 ? 404 : 500, 'Job not found');
+	}
+
+	const fullAudioUrl = `${PUBLIC_API_BASE_URL}/media/${data.audio_url}`;
+	return { job: data, fullAudioUrl };
+};

frontend/src/routes/app/jobs/[job_id]/+page.svelte

@@ -0,0 +1,298 @@
+<script lang="ts">
+	import type { PageProps } from './$types';
+
+	const { data }: PageProps = $props();
+	const { job } = data;
+
+	const languageNames: Record<string, string> = {
+		en: 'English',
+		fr: 'French',
+		es: 'Spanish',
+		it: 'Italian',
+		de: 'German'
+	};
+
+	const lang = (code: string) => languageNames[code] ?? code.toUpperCase();
+
+	const fmt = (iso: string | null | undefined) => {
+		if (!iso) return null;
+		return new Intl.DateTimeFormat('en-GB', {
+			year: 'numeric',
+			month: 'short',
+			day: 'numeric',
+			hour: '2-digit',
+			minute: '2-digit'
+		}).format(new Date(iso));
+	};
+
+	const isTerminal = job.status === 'succeeded' || job.status === 'failed';
+</script>
+
+<div class="page">
+	<nav class="breadcrumb">
+		<a href="/app/jobs" class="link">← Jobs</a>
+	</nav>
+
+	<header class="page-header">
+		<div class="header-top">
+			<h1 class="form-title">Job Details</h1>
+			<span class="status-badge" data-status={job.status}>{job.status}</span>
+		</div>
+		<p class="job-id">{job.id}</p>
+	</header>
+
+	<dl class="meta-grid">
+		<div class="meta-item">
+			<dt class="field-label">Language Pair</dt>
+			<dd class="meta-value">{lang(job.source_language)} → {lang(job.target_language)}</dd>
+		</div>
+		<div class="meta-item">
+			<dt class="field-label">Complexity</dt>
+			<dd class="meta-value">{job.complexity_level}</dd>
+		</div>
+		<div class="meta-item">
+			<dt class="field-label">Created</dt>
+			<dd class="meta-value">{fmt(job.created_at)}</dd>
+		</div>
+		{#if job.started_at}
+			<div class="meta-item">
+				<dt class="field-label">Started</dt>
+				<dd class="meta-value">{fmt(job.started_at)}</dd>
+			</div>
+		{/if}
+		{#if job.completed_at}
+			<div class="meta-item">
+				<dt class="field-label">Completed</dt>
+				<dd class="meta-value">{fmt(job.completed_at)}</dd>
+			</div>
+		{/if}
+	</dl>
+
+	{#if job.status === 'failed' && job.error_message}
+		<div class="alert alert-error" role="alert">
+			<strong>Job failed:</strong>
+			{job.error_message}
+		</div>
+	{:else if !isTerminal}
+		<div class="pending-notice">
+			<div class="spinner" aria-hidden="true"></div>
+			<p>This job is <strong>{job.status}</strong>. Refresh to check for updates.</p>
+		</div>
+	{/if}
+
+	{#if job.input_summary}
+		<section class="content-section">
+			<h2 class="section-title">Input Summary</h2>
+			<div class="prose">{job.input_summary}</div>
+		</section>
+	{/if}
+
+	{#if job.generated_text}
+		<section class="content-section">
+			<h2 class="section-title">
+				Generated Text
+				<span class="section-lang">{lang(job.target_language)}</span>
+			</h2>
+			{#if job.audio_url}
+				<section class="content-section">
+					<h2 class="section-title">Audio</h2>
+					<audio class="audio-player" controls src={data.fullAudioUrl}>
+						Your browser does not support the audio element.
+					</audio>
+				</section>
+			{/if}
+			<div class="prose prose-target">{job.generated_text}</div>
+		</section>
+	{/if}
+
+	{#if job.translated_text}
+		<section class="content-section">
+			<h2 class="section-title">
+				Translation
+				<span class="section-lang">{lang(job.source_language)}</span>
+			</h2>
+			<div class="prose prose-translated">{job.translated_text}</div>
+		</section>
+	{/if}
+</div>
+
+<style>
+	.page {
+		max-width: 52rem;
+		margin: 0 auto;
+		padding: var(--space-8) var(--space-6);
+		display: flex;
+		flex-direction: column;
+		gap: var(--space-6);
+	}
+
+	/* --- Breadcrumb --- */
+
+	.breadcrumb {
+		font-family: var(--font-label);
+		font-size: var(--text-label-lg);
+	}
+
+	/* --- Header --- */
+
+	.header-top {
+		display: flex;
+		align-items: center;
+		gap: var(--space-3);
+		flex-wrap: wrap;
+	}
+
+	.job-id {
+		font-family: var(--font-label);
+		font-size: var(--text-label-md);
+		color: var(--color-on-surface-variant);
+		margin-top: var(--space-1);
+		word-break: break-all;
+	}
+
+	/* --- Status badge --- */
+
+	.status-badge {
+		display: inline-block;
+		padding: 0.2em 0.75em;
+		border-radius: var(--radius-full);
+		font-family: var(--font-label);
+		font-size: var(--text-label-md);
+		font-weight: var(--weight-medium);
+		letter-spacing: var(--tracking-wide);
+		text-transform: uppercase;
+		background-color: var(--color-secondary-container);
+		color: var(--color-on-secondary-container);
+	}
+
+	.status-badge[data-status='completed'] {
+		background-color: var(--color-primary-container);
+		color: var(--color-on-primary-container);
+	}
+
+	.status-badge[data-status='failed'] {
+		background-color: color-mix(in srgb, #b3261e 12%, var(--color-surface));
+		color: #b3261e;
+	}
+
+	/* --- Metadata grid --- */
+
+	.meta-grid {
+		display: grid;
+		grid-template-columns: repeat(auto-fill, minmax(10rem, 1fr));
+		gap: var(--space-3) var(--space-5);
+		padding: var(--space-4);
+		background-color: var(--color-surface-container-low);
+		border-radius: var(--radius-lg);
+	}
+
+	.meta-item {
+		display: flex;
+		flex-direction: column;
+		gap: var(--space-1);
+	}
+
+	.meta-value {
+		font-family: var(--font-display);
+		font-size: var(--text-body-md);
+		font-weight: var(--weight-medium);
+		color: var(--color-on-surface);
+	}
+
+	/* --- Pending notice --- */
+
+	.pending-notice {
+		display: flex;
+		align-items: center;
+		gap: var(--space-3);
+		padding: var(--space-4);
+		background-color: var(--color-secondary-container);
+		border-radius: var(--radius-lg);
+		font-family: var(--font-label);
+		font-size: var(--text-body-sm);
+		color: var(--color-on-secondary-container);
+	}
+
+	.spinner {
+		width: 1.25rem;
+		height: 1.25rem;
+		border: 2px solid var(--color-outline-variant);
+		border-top-color: var(--color-primary);
+		border-radius: 50%;
+		animation: spin 0.9s linear infinite;
+		flex-shrink: 0;
+	}
+
+	@keyframes spin {
+		to {
+			transform: rotate(360deg);
+		}
+	}
+
+	/* --- Content sections --- */
+
+	.content-section {
+		display: flex;
+		flex-direction: column;
+		gap: var(--space-3);
+		padding-top: var(--space-4);
+		border-top: 1px solid color-mix(in srgb, var(--color-outline-variant) 30%, transparent);
+	}
+
+	.section-title {
+		font-family: var(--font-display);
+		font-size: var(--text-title-lg);
+		font-weight: var(--weight-semibold);
+		color: var(--color-on-surface);
+		display: flex;
+		align-items: baseline;
+		gap: var(--space-2);
+	}
+
+	.section-lang {
+		font-family: var(--font-label);
+		font-size: var(--text-label-md);
+		font-weight: var(--weight-medium);
+		letter-spacing: var(--tracking-wide);
+		text-transform: uppercase;
+		color: var(--color-on-surface-variant);
+	}
+
+	/* --- Prose --- */
+
+	.prose {
+		font-family: var(--font-body);
+		font-size: var(--text-body-lg);
+		line-height: var(--leading-relaxed);
+		color: var(--color-on-surface);
+		white-space: pre-wrap;
+	}
+
+	.prose-target {
+		padding: var(--space-5) var(--space-6);
+		background-color: var(--color-surface-container-low);
+		border-radius: var(--radius-lg);
+		font-size: calc(var(--text-body-lg) * 1.05);
+	}
+
+	.prose-translated {
+		color: var(--color-on-surface-variant);
+		font-size: var(--text-body-md);
+		font-style: italic;
+	}
+
+	/* --- Audio --- */
+
+	.audio-player {
+		width: 100%;
+		accent-color: var(--color-primary);
+	}
+
+	/* --- Responsive --- */
+
+	@media (max-width: 640px) {
+		.page {
+			padding: var(--space-6) var(--space-4);
+		}
+	}
+</style>

frontend/src/routes/login/+page.svelte

@@ -1,34 +1,144 @@
 <script lang="ts">
 	import type { PageProps } from './$types';
-
-	const { data }: PageProps = $props();
 </script>
 
-{#if data.isLoggedIn}
-	<p>You are logged in</p>
-{/if}
-<form method="POST">
-	<div class="field">
-		<label for="email" class="label">Email</label>
-		<input
-			id="email"
-			name="email"
-			class="input"
-			type="email"
-			placeholder="e.g john@gmail.com"
-			autocomplete="email"
-		/>
-	</div>
-	<div class="field">
-		<label for="password" class="label">Password</label>
-		<input
-			id="password"
-			name="password"
-			class="input"
-			type="password"
-			placeholder="********"
-			autocomplete="current-password"
-		/>
-	</div>
-	<input type="submit" class="button is-primary" value="Login" />
-</form>
+<div class="page">
+	<aside class="brand-panel" aria-hidden="true">
+		<div class="brand-content">
+			<p class="brand-eyebrow">Language Learning App</p>
+			<h1 class="brand-headline">Read.<br />Listen.<br />Remember.</h1>
+		</div>
+	</aside>
+
+	<main class="form-panel">
+		<div class="form-inner">
+			<header class="form-header">
+				<p class="form-eyebrow">Language Learnnig App</p>
+				<h2 class="form-title">Sign in</h2>
+			</header>
+
+			<form method="POST" class="form">
+				<div class="field">
+					<label for="email" class="field-label">Email</label>
+					<input
+						id="email"
+						name="email"
+						class="field-input"
+						type="email"
+						placeholder="you@example.com"
+						autocomplete="email"
+						required
+					/>
+				</div>
+
+				<div class="field">
+					<label for="password" class="field-label">Password</label>
+					<input
+						id="password"
+						name="password"
+						class="field-input"
+						type="password"
+						placeholder="••••••••"
+						autocomplete="current-password"
+						required
+					/>
+				</div>
+
+				<div class="field">
+					<input type="submit" value="Log In" />
+				</div>
+			</form>
+
+			<footer class="form-footer">
+				<span>Don't have an account?</span>
+				<a href="/register" class="link">Create one</a>
+			</footer>
+		</div>
+	</main>
+</div>
+
+<style>
+	/* -----------------------------------------------------------------------
+	   Page layout: two-panel split
+	   ----------------------------------------------------------------------- */
+
+	.page {
+		display: grid;
+		grid-template-columns: 1fr 1fr;
+		min-height: 100svh;
+	}
+
+	/* -----------------------------------------------------------------------
+	   Left: brand panel
+	   ----------------------------------------------------------------------- */
+
+	.brand-panel {
+		display: flex;
+		align-items: flex-end;
+		padding: var(--space-8);
+		background: radial-gradient(
+			ellipse at 30% 60%,
+			var(--color-surface-container-low) 0%,
+			var(--color-surface) 70%
+		);
+		border-right: none; /* no-line rule — tonal shift does the work */
+	}
+
+	.brand-content {
+		max-width: 28rem;
+	}
+
+	.brand-eyebrow {
+		font-family: var(--font-label);
+		font-size: var(--text-label-md);
+		font-weight: var(--weight-medium);
+		letter-spacing: var(--tracking-wide);
+		text-transform: uppercase;
+		color: var(--color-primary);
+		margin-bottom: var(--space-3);
+	}
+
+	.brand-headline {
+		font-family: var(--font-display);
+		font-size: var(--text-display-lg);
+		font-weight: var(--weight-bold);
+		line-height: var(--leading-tight);
+		letter-spacing: var(--tracking-tight);
+		color: var(--color-on-surface);
+	}
+
+	/* -----------------------------------------------------------------------
+	   Right: form panel
+	   ----------------------------------------------------------------------- */
+
+	.form-panel {
+		display: flex;
+		align-items: center;
+		justify-content: center;
+		padding: var(--space-8) var(--space-6);
+		background-color: var(--color-surface-container-lowest);
+	}
+
+	.form-inner {
+		width: 100%;
+		max-width: 22rem;
+	}
+
+	/* -----------------------------------------------------------------------
+	   Responsive: collapse to single column on mobile
+	   ----------------------------------------------------------------------- */
+
+	@media (max-width: 640px) {
+		.page {
+			grid-template-columns: 1fr;
+		}
+
+		.brand-panel {
+			display: none;
+		}
+
+		.form-panel {
+			padding: var(--space-10) var(--space-5);
+		}
+	}
+</style>

frontend/src/routes/logout/+page.server.ts

@@ -0,0 +1,7 @@
+import { redirect } from '@sveltejs/kit';
+import type { PageServerLoad } from './$types';
+
+export const load: PageServerLoad = async ({ locals, cookies }) => {
+	cookies.delete(`auth_token`, { path: '/' });
+	return redirect(307, '/');
+};