diff --git a/frontend/angular/package-lock.json b/frontend/angular/package-lock.json
index 64938bb..58281d3 100644
--- a/frontend/angular/package-lock.json
+++ b/frontend/angular/package-lock.json
@@ -11,6 +11,7 @@
         "@angular/common": "^19.2.0",
         "@angular/compiler": "^19.2.0",
         "@angular/core": "^19.2.0",
+        "@angular/forms": "^19.2.0",
         "@angular/platform-browser": "^19.2.0",
         "@angular/router": "^19.2.0",
         "rxjs": "~7.8.0",
@@ -372,6 +373,24 @@
         "zone.js": "~0.15.0"
       }
     },
+    "node_modules/@angular/forms": {
+      "version": "19.2.19",
+      "resolved": "https://registry.npmjs.org/@angular/forms/-/forms-19.2.19.tgz",
+      "integrity": "sha512-J09++utTVaPs962y/adeDjIgqyhzNpnzAS7Nex+HNy/LnWPcTNW781cOh1EGS1X/+CmgnI8HWs5z4KGeBeU1aA==",
+      "license": "MIT",
+      "dependencies": {
+        "tslib": "^2.3.0"
+      },
+      "engines": {
+        "node": "^18.19.1 || ^20.11.1 || >=22.0.0"
+      },
+      "peerDependencies": {
+        "@angular/common": "19.2.19",
+        "@angular/core": "19.2.19",
+        "@angular/platform-browser": "19.2.19",
+        "rxjs": "^6.5.3 || ^7.4.0"
+      }
+    },
     "node_modules/@angular/platform-browser": {
       "version": "19.2.19",
       "resolved": "https://registry.npmjs.org/@angular/platform-browser/-/platform-browser-19.2.19.tgz",
diff --git a/frontend/angular/package.json b/frontend/angular/package.json
index 7e4082a..e17dbff 100644
--- a/frontend/angular/package.json
+++ b/frontend/angular/package.json
@@ -10,6 +10,7 @@
     "@angular/common": "^19.2.0",
     "@angular/compiler": "^19.2.0",
     "@angular/core": "^19.2.0",
+    "@angular/forms": "^19.2.0",
     "@angular/platform-browser": "^19.2.0",
     "@angular/router": "^19.2.0",
     "rxjs": "~7.8.0",
diff --git a/frontend/angular/src/app/app.component.ts b/frontend/angular/src/app/app.component.ts
index 7de6cdb..709cb9a 100644
--- a/frontend/angular/src/app/app.component.ts
+++ b/frontend/angular/src/app/app.component.ts
@@ -13,7 +13,7 @@ export class AppComponent {
 
   constructor() {
     const shellRoute = document.body.dataset['wppShellRoute'];
-    if (shellRoute === '/host' || shellRoute === '/player') {
+    if (shellRoute?.startsWith('/host') || shellRoute?.startsWith('/player')) {
       void this.router.navigateByUrl(shellRoute);
     }
   }
diff --git a/frontend/angular/src/app/app.routes.ts b/frontend/angular/src/app/app.routes.ts
index 78880a8..e086bb0 100644
--- a/frontend/angular/src/app/app.routes.ts
+++ b/frontend/angular/src/app/app.routes.ts
@@ -5,10 +5,26 @@ export const routes: Routes = [
     path: 'host',
     loadComponent: () => import('./features/host/host-shell.component').then((m) => m.HostShellComponent),
   },
+  {
+    path: 'host/:phase',
+    loadComponent: () => import('./features/host/host-shell.component').then((m) => m.HostShellComponent),
+  },
+  {
+    path: 'host/:phase/:context',
+    loadComponent: () => import('./features/host/host-shell.component').then((m) => m.HostShellComponent),
+  },
   {
     path: 'player',
     loadComponent: () => import('./features/player/player-shell.component').then((m) => m.PlayerShellComponent),
   },
+  {
+    path: 'player/:phase',
+    loadComponent: () => import('./features/player/player-shell.component').then((m) => m.PlayerShellComponent),
+  },
+  {
+    path: 'player/:phase/:context',
+    loadComponent: () => import('./features/player/player-shell.component').then((m) => m.PlayerShellComponent),
+  },
   { path: '', pathMatch: 'full', redirectTo: 'player' },
   { path: '**', redirectTo: 'player' },
 ];
diff --git a/frontend/angular/src/app/features/host/host-shell.component.ts b/frontend/angular/src/app/features/host/host-shell.component.ts
index af26146..0085e97 100644
--- a/frontend/angular/src/app/features/host/host-shell.component.ts
+++ b/frontend/angular/src/app/features/host/host-shell.component.ts
@@ -1,11 +1,156 @@
+import { CommonModule } from '@angular/common';
 import { Component } from '@angular/core';
+import { FormsModule } from '@angular/forms';
+
+interface SessionDetail {
+  session: { code: string; status: string; current_round: number };
+  round_question: { id: number; prompt: string; answers: Array<{ text: string }> } | null;
+  players: Array<{ id: number; nickname: string; score: number }>;
+}
 
 @Component({
   selector: 'app-host-shell',
   standalone: true,
+  imports: [CommonModule, FormsModule],
   template: `
-    <h2>Host route placeholder</h2>
-    <p>Host flow flyttes hertil i kommende SPA-issues.</p>
+    <h2>Host SPA gameplay flow</h2>
+
+    <div class="panel">
+      <label>Session code <input [(ngModel)]="sessionCode" /></label>
+      <label>Category <input [(ngModel)]="categorySlug" /></label>
+      <button (click)="refreshSession()" [disabled]="loading">Refresh</button>
+      <button (click)="startRound()" [disabled]="loading">Start round</button>
+      <button (click)="showQuestion()" [disabled]="loading || !roundQuestionId">Show question</button>
+      <button (click)="mixAnswers()" [disabled]="loading || !roundQuestionId">Mix answers → guess</button>
+      <button (click)="calculateScores()" [disabled]="loading || !roundQuestionId">Calculate scores → reveal</button>
+      <button (click)="loadScoreboard()" [disabled]="loading">Load scoreboard</button>
+      <button *ngIf="scoreboardError" (click)="loadScoreboard()" [disabled]="loading">Retry scoreboard</button>
+    </div>
+
+    <p *ngIf="error" class="error">{{ error }}</p>
+    <p *ngIf="scoreboardError" class="error">{{ scoreboardError }}</p>
+
+    <div *ngIf="session" class="panel">
+      <p><strong>Status:</strong> {{ session.session.status }} · round {{ session.session.current_round }}</p>
+      <p><strong>Round question id:</strong> {{ roundQuestionId || '-' }}</p>
+      <p *ngIf="session.round_question"><strong>Prompt:</strong> {{ session.round_question.prompt }}</p>
+      <ul>
+        <li *ngFor="let p of session.players">{{ p.nickname }}: {{ p.score }}</li>
+      </ul>
+      <pre *ngIf="scoreboardPayload">{{ scoreboardPayload }}</pre>
+    </div>
   `,
 })
-export class HostShellComponent {}
+export class HostShellComponent {
+  sessionCode = '';
+  categorySlug = 'general';
+  roundQuestionId = '';
+  loading = false;
+  error = '';
+  scoreboardError = '';
+  scoreboardPayload = '';
+  session: SessionDetail | null = null;
+
+  private normalizeCode(value: string): string {
+    return value.trim().toUpperCase();
+  }
+
+  private async request<T>(path: string, method: 'GET' | 'POST', payload?: unknown): Promise<T> {
+    const response = await fetch(path, {
+      method,
+      headers: {
+        Accept: 'application/json',
+        ...(payload === undefined ? {} : { 'Content-Type': 'application/json' }),
+      },
+      ...(payload === undefined ? {} : { body: JSON.stringify(payload) }),
+      credentials: 'same-origin',
+    });
+
+    const body = await response.json().catch(() => ({}));
+    if (!response.ok) {
+      throw new Error((body as { error?: string }).error ?? `HTTP ${response.status}`);
+    }
+
+    return body as T;
+  }
+
+  async refreshSession(): Promise<void> {
+    this.loading = true;
+    this.error = '';
+    this.scoreboardError = '';
+    try {
+      const code = this.normalizeCode(this.sessionCode);
+      this.session = await this.request<SessionDetail>(`/lobby/sessions/${encodeURIComponent(code)}`, 'GET');
+      this.sessionCode = this.session.session.code;
+      this.roundQuestionId = this.session.round_question?.id ? String(this.session.round_question.id) : '';
+    } catch (error) {
+      this.error = `Session refresh failed: ${(error as Error).message}`;
+    } finally {
+      this.loading = false;
+    }
+  }
+
+  async startRound(): Promise<void> {
+    await this.runAction(async () => {
+      const code = this.normalizeCode(this.sessionCode);
+      await this.request(`/lobby/sessions/${encodeURIComponent(code)}/rounds/start`, 'POST', {
+        category_slug: this.categorySlug.trim(),
+      });
+      await this.refreshSession();
+    });
+  }
+
+  async showQuestion(): Promise<void> {
+    await this.runAction(async () => {
+      const code = this.normalizeCode(this.sessionCode);
+      await this.request(`/lobby/sessions/${encodeURIComponent(code)}/questions/show`, 'POST', {});
+      await this.refreshSession();
+    });
+  }
+
+  async mixAnswers(): Promise<void> {
+    await this.runAction(async () => {
+      const code = this.normalizeCode(this.sessionCode);
+      const roundQuestionId = this.roundQuestionId.trim();
+      await this.request(`/lobby/sessions/${encodeURIComponent(code)}/questions/${roundQuestionId}/answers/mix`, 'POST', {});
+      await this.refreshSession();
+    });
+  }
+
+  async calculateScores(): Promise<void> {
+    await this.runAction(async () => {
+      const code = this.normalizeCode(this.sessionCode);
+      const roundQuestionId = this.roundQuestionId.trim();
+      await this.request(`/lobby/sessions/${encodeURIComponent(code)}/questions/${roundQuestionId}/scores/calculate`, 'POST', {});
+      await this.refreshSession();
+    });
+  }
+
+  async loadScoreboard(): Promise<void> {
+    this.loading = true;
+    this.scoreboardError = '';
+    this.error = '';
+    try {
+      const code = this.normalizeCode(this.sessionCode);
+      const payload = await this.request<unknown>(`/lobby/sessions/${encodeURIComponent(code)}/scoreboard`, 'GET');
+      this.scoreboardPayload = JSON.stringify(payload, null, 2);
+      await this.refreshSession();
+    } catch (error) {
+      this.scoreboardError = `Scoreboard failed: ${(error as Error).message}`;
+    } finally {
+      this.loading = false;
+    }
+  }
+
+  private async runAction(action: () => Promise<void>): Promise<void> {
+    this.loading = true;
+    this.error = '';
+    try {
+      await action();
+    } catch (error) {
+      this.error = (error as Error).message;
+    } finally {
+      this.loading = false;
+    }
+  }
+}
diff --git a/frontend/angular/src/app/features/player/player-shell.component.ts b/frontend/angular/src/app/features/player/player-shell.component.ts
index 6396173..f8087de 100644
--- a/frontend/angular/src/app/features/player/player-shell.component.ts
+++ b/frontend/angular/src/app/features/player/player-shell.component.ts
@@ -1,11 +1,173 @@
+import { CommonModule } from '@angular/common';
 import { Component } from '@angular/core';
+import { FormsModule } from '@angular/forms';
+
+interface SessionDetail {
+  session: { code: string; status: string; current_round: number };
+  round_question: { id: number; prompt: string; answers: Array<{ text: string }> } | null;
+}
 
 @Component({
   selector: 'app-player-shell',
   standalone: true,
+  imports: [CommonModule, FormsModule],
   template: `
-    <h2>Player route placeholder</h2>
-    <p>Player flow flyttes hertil i kommende SPA-issues.</p>
+    <h2>Player SPA gameplay flow</h2>
+
+    <div class="panel">
+      <label>Session code <input [(ngModel)]="sessionCode" /></label>
+      <label>Nickname <input [(ngModel)]="nickname" /></label>
+      <button (click)="refreshSession()" [disabled]="loading">Refresh</button>
+      <button (click)="joinSession()" [disabled]="loading">Join</button>
+    </div>
+
+    <div class="panel" *ngIf="session">
+      <p><strong>Status:</strong> {{ session.session.status }}</p>
+      <p *ngIf="session.round_question"><strong>Prompt:</strong> {{ session.round_question.prompt }}</p>
+
+      <label>Løgn <input [(ngModel)]="lieText" [disabled]="loading || session.session.status !== 'lie'" /></label>
+      <button (click)="submitLie()" [disabled]="loading || session.session.status !== 'lie'">Submit lie</button>
+      <button *ngIf="submitError?.kind === 'lie'" (click)="submitLie()" [disabled]="loading">Retry lie submit</button>
+
+      <div class="answers" *ngIf="session.round_question?.answers?.length">
+        <button
+          type="button"
+          *ngFor="let answer of session.round_question?.answers"
+          (click)="selectedGuess = answer.text"
+          [class.active]="selectedGuess === answer.text"
+          [disabled]="loading || session.session.status !== 'guess'"
+        >
+          {{ answer.text }}
+        </button>
+      </div>
+
+      <button (click)="submitGuess()" [disabled]="loading || session.session.status !== 'guess' || !selectedGuess">Submit guess</button>
+      <button *ngIf="submitError?.kind === 'guess'" (click)="submitGuess()" [disabled]="loading">Retry guess submit</button>
+    </div>
+
+    <p *ngIf="error" class="error">{{ error }}</p>
+    <p *ngIf="submitError" class="error">{{ submitError.message }}</p>
   `,
 })
-export class PlayerShellComponent {}
+export class PlayerShellComponent {
+  sessionCode = '';
+  nickname = '';
+  playerId = 0;
+  sessionToken = '';
+  lieText = '';
+  selectedGuess = '';
+  loading = false;
+  error = '';
+  submitError: { kind: 'lie' | 'guess'; message: string } | null = null;
+  session: SessionDetail | null = null;
+
+  private normalizeCode(value: string): string {
+    return value.trim().toUpperCase();
+  }
+
+  private async request<T>(path: string, method: 'GET' | 'POST', payload?: unknown): Promise<T> {
+    const response = await fetch(path, {
+      method,
+      headers: {
+        Accept: 'application/json',
+        ...(payload === undefined ? {} : { 'Content-Type': 'application/json' }),
+      },
+      ...(payload === undefined ? {} : { body: JSON.stringify(payload) }),
+      credentials: 'same-origin',
+    });
+
+    const body = await response.json().catch(() => ({}));
+    if (!response.ok) {
+      throw new Error((body as { error?: string }).error ?? `HTTP ${response.status}`);
+    }
+
+    return body as T;
+  }
+
+  async refreshSession(): Promise<void> {
+    this.loading = true;
+    this.error = '';
+    try {
+      const code = this.normalizeCode(this.sessionCode);
+      this.session = await this.request<SessionDetail>(`/lobby/sessions/${encodeURIComponent(code)}`, 'GET');
+      this.sessionCode = this.session.session.code;
+      if (this.session.session.status !== 'guess') {
+        this.selectedGuess = '';
+      }
+    } catch (error) {
+      this.error = `Session refresh failed: ${(error as Error).message}`;
+    } finally {
+      this.loading = false;
+    }
+  }
+
+  async joinSession(): Promise<void> {
+    this.loading = true;
+    this.error = '';
+    try {
+      const payload = await this.request<{
+        player: { id: number; session_token: string };
+        session: { code: string };
+      }>('/lobby/sessions/join', 'POST', {
+        code: this.normalizeCode(this.sessionCode),
+        nickname: this.nickname.trim(),
+      });
+      this.playerId = payload.player.id;
+      this.sessionToken = payload.player.session_token;
+      this.sessionCode = payload.session.code;
+      await this.refreshSession();
+    } catch (error) {
+      this.error = `Join failed: ${(error as Error).message}`;
+    } finally {
+      this.loading = false;
+    }
+  }
+
+  async submitLie(): Promise<void> {
+    if (!this.session?.round_question?.id) {
+      return;
+    }
+    this.loading = true;
+    this.submitError = null;
+    try {
+      await this.request(
+        `/lobby/sessions/${encodeURIComponent(this.normalizeCode(this.sessionCode))}/questions/${this.session.round_question.id}/lies/submit`,
+        'POST',
+        {
+          player_id: this.playerId,
+          session_token: this.sessionToken,
+          text: this.lieText,
+        }
+      );
+      await this.refreshSession();
+    } catch (error) {
+      this.submitError = { kind: 'lie', message: `Lie submit failed: ${(error as Error).message}` };
+    } finally {
+      this.loading = false;
+    }
+  }
+
+  async submitGuess(): Promise<void> {
+    if (!this.session?.round_question?.id || !this.selectedGuess) {
+      return;
+    }
+    this.loading = true;
+    this.submitError = null;
+    try {
+      await this.request(
+        `/lobby/sessions/${encodeURIComponent(this.normalizeCode(this.sessionCode))}/questions/${this.session.round_question.id}/guesses/submit`,
+        'POST',
+        {
+          player_id: this.playerId,
+          session_token: this.sessionToken,
+          selected_text: this.selectedGuess,
+        }
+      );
+      await this.refreshSession();
+    } catch (error) {
+      this.submitError = { kind: 'guess', message: `Guess submit failed: ${(error as Error).message}` };
+    } finally {
+      this.loading = false;
+    }
+  }
+}