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@@ -0,0 +1,1795 @@
+<template>
+  <div class="challonge-test">
+    <div class="container">
+      <div class="header">
+        <router-link to="/" class="back-button"> ← Back Home </router-link>
+        <h1>Challonge API Test</h1>
+      </div>
+      <p class="description">
+        Test your Challonge API connection and verify your configuration.
+      </p>
+
+      <!-- API Version & Settings Controls -->
+      <div v-if="apiKey" class="section controls-section">
+        <div class="controls-grid">
+          <!-- API Version Selector -->
+          <div class="control-group">
+            <label class="control-label">API Version:</label>
+            <div class="radio-group">
+              <label class="radio-option">
+                <input type="radio" v-model="apiVersion" value="v1" />
+                <span>v1 (Legacy)</span>
+              </label>
+              <label class="radio-option">
+                <input type="radio" v-model="apiVersion" value="v2.1" />
+                <span>v2.1 (Current)</span>
+              </label>
+            </div>
+            <span
+              class="version-badge"
+              :class="'badge-' + apiVersion.replace('.', '-')"
+            >
+              Using API {{ apiVersion }}
+            </span>
+          </div>
+
+          <!-- Results Per Page (v2.1 only) -->
+          <div v-if="apiVersion === 'v2.1'" class="control-group">
+            <label class="control-label">Results per page:</label>
+            <select
+              v-model.number="perPage"
+              @change="changePerPage(perPage)"
+              class="select-input"
+            >
+              <option :value="10">10</option>
+              <option :value="25">25</option>
+              <option :value="50">50</option>
+              <option :value="100">100</option>
+            </select>
+          </div>
+
+          <!-- Tournament Scope (v2.1 only) -->
+          <div v-if="apiVersion === 'v2.1'" class="control-group">
+            <label class="control-label">Tournament scope:</label>
+            <select v-model="tournamentScope" class="select-input">
+              <option :value="ScopeType.USER">User (default)</option>
+              <option :value="ScopeType.APPLICATION">
+                Application (requires application:manage token)
+              </option>
+            </select>
+            <div class="info-badge" v-if="tournamentScope === ScopeType.USER">
+              ✓ USER scope - tournaments you created or administer
+            </div>
+            <div class="info-badge warning" v-else>
+              ⓘ APPLICATION scope requires a client-credentials token with
+              application:manage
+            </div>
+          </div>
+
+          <!-- API Key Configuration -->
+          <div class="control-group collapsible-group">
+            <div
+              class="collapsible-header"
+              @click="apiKeyCollapsed = !apiKeyCollapsed"
+            >
+              <label class="control-label">API Key Configuration</label>
+              <span class="collapse-icon">{{
+                apiKeyCollapsed ? '▶' : '▼'
+              }}</span>
+            </div>
+            <div v-show="!apiKeyCollapsed" class="collapsible-content">
+              <div class="status success">
+                ✅ API Key Loaded: {{ maskedApiKey }}
+              </div>
+              <router-link to="/api-key-manager" class="btn-link">
+                Manage your API key
+              </router-link>
+              <p class="api-note">
+                💡 Your API v1 key works with both API versions
+              </p>
+            </div>
+          </div>
+
+          <!-- OAuth Authentication (v2.1 only) -->
+          <div
+            v-if="apiVersion === 'v2.1'"
+            class="control-group oauth-section collapsible-group"
+          >
+            <div
+              class="collapsible-header"
+              @click="oauthCollapsed = !oauthCollapsed"
+            >
+              <label class="control-label">OAuth Authentication</label>
+              <span class="collapse-icon">{{
+                oauthCollapsed ? '▶' : '▼'
+              }}</span>
+            </div>
+            <div v-show="!oauthCollapsed" class="collapsible-content">
+              <div v-if="isAuthenticated" class="oauth-status">
+                <span class="status-badge status-connected">✓ Connected</span>
+                <button @click="oauthLogout" class="btn btn-secondary btn-sm">
+                  Logout
+                </button>
+              </div>
+              <div v-else class="oauth-status">
+                <span class="status-badge status-disconnected"
+                  >○ Not Connected</span
+                >
+                <button
+                  @click="oauthLogin('me tournaments:read tournaments:write')"
+                  class="btn btn-primary btn-sm"
+                  :disabled="oauthLoading"
+                >
+                  {{ oauthLoading ? 'Connecting...' : 'Connect with OAuth' }}
+                </button>
+              </div>
+              <span class="oauth-hint">
+                {{
+                  isAuthenticated
+                    ? 'Using OAuth - APPLICATION scope available'
+                    : 'Connect to enable APPLICATION scope'
+                }}
+              </span>
+            </div>
+          </div>
+
+          <!-- Client Credentials (v2.1 only) -->
+          <div
+            v-if="apiVersion === 'v2.1'"
+            class="control-group collapsible-group"
+          >
+            <div
+              class="collapsible-header"
+              @click="clientCredsCollapsed = !clientCredsCollapsed"
+            >
+              <label class="control-label">Client Credentials</label>
+              <span class="collapse-icon">{{
+                clientCredsCollapsed ? '▶' : '▼'
+              }}</span>
+            </div>
+            <div v-show="!clientCredsCollapsed" class="collapsible-content">
+              <div class="info-badge" v-if="isClientCredsAuthenticated">
+                ✓ Client Credentials Active
+              </div>
+              <div
+                class="info-badge warning"
+                v-if="
+                  isClientCredsAuthenticated &&
+                  tournamentScope === ScopeType.USER
+                "
+              >
+                ⚠️ Client credentials may not work with USER scope - switch to
+                APPLICATION scope
+              </div>
+              <router-link
+                to="/client-credentials"
+                class="btn btn-secondary btn-sm"
+              >
+                Manage Client Credentials
+              </router-link>
+              <span class="scope-hint">
+                Client credentials should use APPLICATION scope for tournament
+                access
+              </span>
+            </div>
+          </div>
+        </div>
+      </div>
+
+      <!-- No API Key Stored -->
+      <div v-if="!apiKey" class="section warning-section no-key-section">
+        <div class="warning-content">
+          <h2>⚠️ No API Key Found</h2>
+          <p class="warning-text">
+            Please store your Challonge API key in the API Key Manager to get
+            started.
+          </p>
+          <router-link to="/api-key-manager" class="btn btn-primary btn-lg">
+            Go to API Key Manager
+          </router-link>
+          <p class="hint-text">
+            The API Key Manager securely stores your key in your browser. Set it
+            up once and use it across all tools.
+          </p>
+        </div>
+      </div>
+
+      <!-- List Tournaments Test -->
+      <div v-if="apiKey" class="section">
+        <h2>Test API Connection</h2>
+        <button
+          @click="testListTournaments()"
+          :disabled="loading"
+          class="btn btn-primary"
+        >
+          {{ loading ? 'Loading...' : 'List My Tournaments' }}
+        </button>
+
+        <div v-if="error" class="error-box">
+          <strong>Errors:</strong>
+          <ul class="error-list">
+            <li
+              v-for="(err, index) in Array.isArray(error) ? error : [error]"
+              :key="index"
+            >
+              <span class="error-status">{{ err.status || 'Error' }}:</span>
+              <span class="error-message">{{
+                err.message || err.detail || err
+              }}</span>
+              <span v-if="err.field" class="error-field"
+                >({{ err.field }})</span
+              >
+            </li>
+          </ul>
+          <div class="help-text">
+            <p>Common issues:</p>
+            <ul>
+              <li>
+                <strong>401 Unauthorized:</strong> Invalid API key - check API
+                Key Manager
+              </li>
+              <li><strong>403 Forbidden:</strong> Insufficient permissions</li>
+              <li>
+                <strong>404 Not Found:</strong> Tournament may have been deleted
+              </li>
+              <li>
+                <strong>Network Error:</strong> Connection problems or CORS
+                issues
+              </li>
+            </ul>
+          </div>
+        </div>
+
+        <div v-if="tournaments" class="results">
+          <div class="results-header">
+            <h3>✅ Success!</h3>
+            <p class="pagination-info">{{ paginationInfo }}</p>
+          </div>
+
+          <div v-if="tournaments.length === 0" class="info-box">
+            No tournaments found. Create one at
+            <a href="https://challonge.com" target="_blank">Challonge.com</a>
+          </div>
+
+          <div v-else>
+            <!-- Search Filter -->
+            <div class="search-box">
+              <input
+                v-model="searchQuery"
+                type="text"
+                placeholder="🔍 Search tournaments by name (client-side)..."
+                class="search-input"
+              />
+              <span v-if="searchQuery" class="search-info">
+                Showing {{ filteredTournaments.length }} of
+                {{ tournaments.length }} tournaments
+              </span>
+            </div>
+
+            <div class="tournament-list">
+              <div
+                v-for="tournament in filteredTournaments"
+                :key="getTournamentId(tournament)"
+                class="tournament-card"
+              >
+                <div class="tournament-header">
+                  <h4>{{ getTournamentName(tournament) }}</h4>
+                  <span
+                    class="tournament-state"
+                    :class="getTournamentProp(tournament, 'state')"
+                  >
+                    {{ getTournamentProp(tournament, 'state') }}
+                  </span>
+                </div>
+                <div class="tournament-details">
+                  <p>
+                    <strong>URL:</strong>
+                    {{ getTournamentProp(tournament, 'url') }}
+                  </p>
+                  <p>
+                    <strong>Type:</strong>
+                    {{ getTournamentProp(tournament, 'tournament_type') }}
+                  </p>
+                  <p>
+                    <strong>Participants:</strong>
+                    {{ getTournamentProp(tournament, 'participants_count') }}
+                  </p>
+                  <p v-if="getTournamentProp(tournament, 'started_at')">
+                    <strong>Started:</strong>
+                    {{
+                      formatDate(getTournamentProp(tournament, 'started_at'))
+                    }}
+                  </p>
+                </div>
+                <button
+                  @click="toggleTournamentDetails(getTournamentId(tournament))"
+                  class="btn btn-small"
+                  :class="{
+                    'btn-active':
+                      expandedTournamentId === getTournamentId(tournament)
+                  }"
+                >
+                  {{
+                    expandedTournamentId === getTournamentId(tournament)
+                      ? 'Hide Details'
+                      : 'Load Details'
+                  }}
+                </button>
+
+                <!-- Collapsible Details Section -->
+                <div
+                  v-if="
+                    expandedTournamentId === getTournamentId(tournament) &&
+                    tournamentDetails
+                  "
+                  class="tournament-details-inline"
+                >
+                  <div class="details-header">
+                    <h4>Full Tournament Details</h4>
+                  </div>
+                  <pre class="details-content">{{
+                    JSON.stringify(tournamentDetails, null, 2)
+                  }}</pre>
+                </div>
+              </div>
+            </div>
+
+            <!-- Load More Button (v2.1 only) -->
+            <div
+              v-if="apiVersion === 'v2.1' && hasNextPage"
+              class="load-more-section"
+            >
+              <button
+                @click="loadMoreTournaments"
+                :disabled="loadingMore"
+                class="btn btn-secondary"
+              >
+                {{ loadingMore ? 'Loading...' : 'Load More Tournaments' }}
+              </button>
+            </div>
+          </div>
+        </div>
+      </div>
+
+      <!-- Configuration Instructions -->
+      <div v-if="!apiKey" class="section info-section">
+        <h2>ℹ️ How to Set Up Your API Key</h2>
+        <div class="info-steps">
+          <div class="step">
+            <div class="step-number">1</div>
+            <div class="step-content">
+              <h3>Get Your API Key</h3>
+              <p>
+                Visit
+                <a
+                  href="https://challonge.com/settings/developer"
+                  target="_blank"
+                >
+                  Challonge Developer Settings
+                </a>
+                and copy your API key
+              </p>
+            </div>
+          </div>
+          <div class="step">
+            <div class="step-number">2</div>
+            <div class="step-content">
+              <h3>Store in API Key Manager</h3>
+              <p>
+                Go to the API Key Manager and paste your key. It will be saved
+                securely in your browser.
+              </p>
+            </div>
+          </div>
+          <div class="step">
+            <div class="step-number">3</div>
+            <div class="step-content">
+              <h3>Start Testing</h3>
+              <p>
+                Return to this page and test your API connection with the stored
+                key.
+              </p>
+            </div>
+          </div>
+        </div>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup>
+import { ref, computed, watch, onMounted } from 'vue';
+import { useChallongeApiKey } from '../composables/useChallongeApiKey.js';
+import { useChallongeOAuth } from '../composables/useChallongeOAuth.js';
+import { useChallongeClientCredentials } from '../composables/useChallongeClientCredentials.js';
+import { useAsyncState } from '../composables/useAsyncState.js';
+import {
+  createChallongeV1Client,
+  createChallongeV2Client,
+  AuthType,
+  ScopeType
+} from '../services/challonge.service.js';
+import { queryAllTournaments } from '../utilities/tournament-query.js';
+
+const { getApiKey } = useChallongeApiKey();
+const {
+  isAuthenticated,
+  accessToken,
+  login: oauthLogin,
+  logout: oauthLogout,
+  loading: oauthLoading
+} = useChallongeOAuth();
+const {
+  isAuthenticated: isClientCredsAuthenticated,
+  accessToken: clientCredsToken
+} = useChallongeClientCredentials();
+
+// API Configuration
+const apiVersion = ref('v2.1'); // 'v1' or 'v2.1'
+
+// State management with useAsyncState
+const tournamentListState = useAsyncState();
+const loadMoreState = useAsyncState();
+const tournamentDetailsState = useAsyncState();
+
+// Destructure for template usage
+const { data: tournaments, isLoading: loading, error } = tournamentListState;
+const { isLoading: loadingMore } = loadMoreState;
+
+const searchQuery = ref('');
+const expandedTournamentId = ref(null);
+
+// Pagination
+const currentPage = ref(1);
+const perPage = ref(10);
+const totalTournaments = ref(0);
+const hasNextPage = ref(false);
+
+// v2.1 Tournament Scope
+const tournamentScope = ref(ScopeType.USER);
+
+// Debug mode - enabled to see what's happening
+const debugMode = ref(true);
+
+// Collapsible section states
+const apiKeyCollapsed = ref(false);
+const oauthCollapsed = ref(false);
+const clientCredsCollapsed = ref(false);
+
+// Make apiKey reactive
+const apiKey = computed(() => getApiKey());
+
+const maskedApiKey = computed(() => {
+  if (!apiKey.value) return '';
+  return apiKey.value.slice(0, 4) + '•••••••' + apiKey.value.slice(-4);
+});
+
+// Tournament details computed from async state
+const tournamentDetails = computed(() => tournamentDetailsState.data.value);
+
+// Create API client reactively based on version, key, and OAuth status
+const client = computed(() => {
+  if (apiVersion.value === 'v1') {
+    // v1 only supports API key
+    if (!apiKey.value) return null;
+    return createChallongeV1Client(apiKey.value);
+  } else {
+    // v2.1 supports OAuth, client credentials, and API key
+    // Smart priority based on scope selection:
+    // - APPLICATION scope: prefer client credentials (they're designed for this)
+    // - USER scope: prefer OAuth user tokens or API key (client creds don't work well here)
+
+    if (tournamentScope.value === ScopeType.APPLICATION) {
+      // APPLICATION scope - prefer client credentials
+      if (isClientCredsAuthenticated.value && clientCredsToken.value) {
+        console.log('🔐 Using Client Credentials token for APPLICATION scope');
+        return createChallongeV2Client(
+          { token: clientCredsToken.value, type: AuthType.OAUTH },
+          { debug: debugMode.value }
+        );
+      } else if (isAuthenticated.value && accessToken.value) {
+        console.log('🔐 Using OAuth user token for APPLICATION scope');
+        return createChallongeV2Client(
+          { token: accessToken.value, type: AuthType.OAUTH },
+          { debug: debugMode.value }
+        );
+      }
+    } else {
+      // USER scope - prefer OAuth user tokens or API key (client creds may not work)
+      if (isAuthenticated.value && accessToken.value) {
+        console.log('🔐 Using OAuth user token for USER scope');
+        return createChallongeV2Client(
+          { token: accessToken.value, type: AuthType.OAUTH },
+          { debug: debugMode.value }
+        );
+      } else if (apiKey.value) {
+        console.log('🔑 Using API Key for USER scope');
+        return createChallongeV2Client(
+          { token: apiKey.value, type: AuthType.API_KEY },
+          { debug: debugMode.value }
+        );
+      }
+    }
+
+    // Fallback: try API key
+    if (apiKey.value) {
+      console.log('🔑 Using API Key (fallback)');
+      return createChallongeV2Client(
+        { token: apiKey.value, type: AuthType.API_KEY },
+        { debug: debugMode.value }
+      );
+    }
+
+    return null;
+  }
+});
+
+// Pagination info
+const paginationInfo = computed(() => {
+  if (!tournaments.value) return '';
+  const start = (currentPage.value - 1) * perPage.value + 1;
+  const end = Math.min(
+    start + tournaments.value.length - 1,
+    totalTournaments.value || tournaments.value.length
+  );
+  const total = totalTournaments.value || tournaments.value.length;
+  return `Showing ${start}-${end} of ${total}`;
+});
+
+// Filter tournaments (client-side for now, can be moved to server-side)
+const filteredTournaments = computed(() => {
+  if (!tournaments.value) return null;
+  if (!searchQuery.value.trim()) return tournaments.value;
+
+  const query = searchQuery.value.toLowerCase();
+  return tournaments.value.filter(t => {
+    const name = getTournamentName(t).toLowerCase();
+    return name.includes(query);
+  });
+});
+
+// Helper to get tournament name (handles both v1 and v2.1 response structures)
+function getTournamentName(tournament) {
+  return tournament.tournament?.name || tournament.name || '';
+}
+
+// Helper to get tournament ID
+function getTournamentId(tournament) {
+  return tournament.tournament?.id || tournament.id;
+}
+
+// Helper to get tournament property
+function getTournamentProp(tournament, prop) {
+  return tournament.tournament?.[prop] || tournament[prop];
+}
+
+async function testListTournaments(resetPagination = true) {
+  if (resetPagination) {
+    currentPage.value = 1;
+    searchQuery.value = '';
+    expandedTournamentId.value = null;
+    tournamentDetailsState.reset();
+  }
+
+  await tournamentListState.execute(async () => {
+    if (apiVersion.value === 'v1') {
+      // v1 doesn't support pagination
+      const result = await client.value.tournaments.list();
+      totalTournaments.value = result.length;
+      hasNextPage.value = false;
+      return result;
+    } else {
+      // v2.1 - Query all tournament states (pending, in_progress, ended) in parallel
+      // USER scope returns tournaments you have access to:
+      // - Tournaments you created
+      // - Tournaments where you're added as an admin
+      const result = await queryAllTournaments(client.value, {
+        page: currentPage.value,
+        per_page: 100,
+        scopeType: tournamentScope.value
+      });
+
+      console.log('📊 Tournament API Response (All States):', {
+        page: currentPage.value,
+        perPage: 100,
+        scope: tournamentScope.value,
+        scopeRaw: tournamentScope.value,
+        ScopeType_USER: ScopeType.USER,
+        ScopeType_APPLICATION: ScopeType.APPLICATION,
+        states: [
+          'pending',
+          'checking_in',
+          'checked_in',
+          'accepting_predictions',
+          'group_stages_underway',
+          'group_stages_finalized',
+          'underway',
+          'awaiting_review',
+          'complete'
+        ],
+        resultsCount: result.length,
+        isOAuthAuthenticated: isAuthenticated.value,
+        isClientCredsAuthenticated: isClientCredsAuthenticated.value,
+        authType: isClientCredsAuthenticated.value
+          ? 'Client Credentials'
+          : isAuthenticated.value
+            ? 'OAuth'
+            : 'API Key',
+        results: result
+      });
+
+      totalTournaments.value = result.length;
+      hasNextPage.value = result.length >= 100;
+      return result;
+    }
+  });
+}
+
+async function loadMoreTournaments() {
+  if (apiVersion.value === 'v1') return; // v1 doesn't support pagination
+
+  currentPage.value++;
+
+  const result = await loadMoreState.execute(async () => {
+    const newResults = await queryAllTournaments(client.value, {
+      page: currentPage.value,
+      per_page: 100,
+      scopeType: tournamentScope.value
+    });
+
+    hasNextPage.value = newResults.length === perPage.value;
+    return newResults;
+  });
+
+  if (result) {
+    // Append new results to existing tournaments
+    tournaments.value = [...tournaments.value, ...result];
+  } else {
+    // Revert page increment on error
+    currentPage.value--;
+  }
+}
+
+async function changePerPage(newLimit) {
+  perPage.value = newLimit;
+  await testListTournaments(true);
+}
+
+async function toggleTournamentDetails(tournamentId) {
+  if (expandedTournamentId.value === tournamentId) {
+    expandedTournamentId.value = null;
+    tournamentDetailsState.reset();
+    return;
+  }
+
+  expandedTournamentId.value = tournamentId;
+
+  await tournamentDetailsState.execute(async () => {
+    if (apiVersion.value === 'v1') {
+      return await client.value.tournaments.get(tournamentId, {
+        includeParticipants: true,
+        includeMatches: true
+      });
+    } else {
+      // v2.1 get tournament
+      return await client.value.tournaments.get(tournamentId);
+    }
+  });
+
+  // Reset expanded state if there was an error
+  if (tournamentDetailsState.error.value) {
+    expandedTournamentId.value = null;
+  }
+}
+
+async function switchApiVersion() {
+  // Clear state when switching versions
+  tournamentListState.reset();
+  loadMoreState.reset();
+  tournamentDetailsState.reset();
+  searchQuery.value = '';
+  expandedTournamentId.value = null;
+  currentPage.value = 1;
+}
+
+function formatDate(dateString) {
+  if (!dateString) return '';
+  return new Date(dateString).toLocaleString();
+}
+
+// Watch for API version changes
+watch(apiVersion, switchApiVersion);
+
+// Check for debug mode on mount
+onMounted(() => {
+  debugMode.value = localStorage.getItem('DEBUG_CHALLONGE') === 'true';
+});
+</script>
+
+<style scoped>
+.challonge-test {
+  min-height: 100vh;
+  padding: 2rem 1rem;
+  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+}
+
+.container {
+  max-width: 1200px;
+  margin: 0 auto;
+  background: white;
+  border-radius: 12px;
+  padding: 2rem;
+  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
+}
+
+.header {
+  display: flex;
+  align-items: center;
+  gap: 1rem;
+  margin-bottom: 1rem;
+  flex-wrap: wrap;
+}
+
+.back-button {
+  padding: 0.5rem 1rem;
+  background: #667eea;
+  color: white;
+  text-decoration: none;
+  border-radius: 6px;
+  font-weight: 600;
+  transition: all 0.3s ease;
+  display: inline-block;
+}
+
+.back-button:hover {
+  background: #5568d3;
+  transform: translateX(-2px);
+}
+
+h1 {
+  color: #333;
+  margin: 0;
+  font-size: 2.5rem;
+}
+
+.description {
+  color: #666;
+  font-size: 1.1rem;
+  margin-bottom: 2rem;
+}
+
+.section {
+  margin: 2rem 0;
+  padding: 1.5rem;
+  background: #f8f9fa;
+  border-radius: 8px;
+  border: 1px solid #e9ecef;
+}
+
+.section.warning-section {
+  background: #fef3c7;
+  border: 2px solid #fcd34d;
+}
+
+.no-key-section {
+  text-align: center;
+  padding: 3rem 2rem;
+}
+
+.warning-content h2 {
+  font-size: 1.75rem;
+  color: #92400e;
+  margin-bottom: 0.5rem;
+}
+
+.warning-text {
+  font-size: 1.1rem;
+  color: #78350f;
+  margin-bottom: 1.5rem;
+  font-weight: 500;
+}
+
+.btn-lg {
+  padding: 0.875rem 2rem;
+  font-size: 1.05rem;
+  display: inline-block;
+  margin: 0 auto 1.5rem;
+}
+
+.hint-text {
+  font-size: 0.95rem;
+  color: #78350f;
+  margin: 0;
+  font-style: italic;
+  opacity: 0.9;
+}
+
+h2 {
+  color: #495057;
+  margin-bottom: 1rem;
+  font-size: 1.5rem;
+}
+
+.status {
+  padding: 1rem;
+  border-radius: 6px;
+  font-weight: 500;
+}
+
+.status.success {
+  background: #d1fae5;
+  color: #065f46;
+  border-left: 4px solid #10b981;
+}
+
+.status.error {
+  background: #fee;
+  color: #c33;
+  border-left: 4px solid #c33;
+}
+
+.btn {
+  padding: 0.75rem 1.5rem;
+  font-size: 1rem;
+  font-weight: 600;
+  border: none;
+  border-radius: 6px;
+  cursor: pointer;
+  transition: all 0.3s ease;
+}
+
+.btn-primary {
+  background: #667eea;
+  color: white;
+}
+
+.btn-primary:hover:not(:disabled) {
+  background: #5568d3;
+  transform: translateY(-2px);
+  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
+}
+
+.btn:disabled {
+  opacity: 0.6;
+  cursor: not-allowed;
+}
+
+.btn-small {
+  padding: 0.5rem 1rem;
+  font-size: 0.875rem;
+  background: #667eea;
+  color: white;
+  margin-top: 0.5rem;
+  transition: all 0.3s ease;
+}
+
+.btn-small:hover {
+  background: #5568d3;
+}
+
+.btn-small.btn-active {
+  background: #f59e0b;
+}
+
+.btn-small.btn-active:hover {
+  background: #d97706;
+}
+
+.tournament-details-inline {
+  margin-top: 1rem;
+  padding-top: 1rem;
+  border-top: 2px solid #e9ecef;
+  animation: slideDown 0.3s ease-out;
+}
+
+@keyframes slideDown {
+  from {
+    opacity: 0;
+    max-height: 0;
+    transform: translateY(-10px);
+  }
+  to {
+    opacity: 1;
+    max-height: 2000px;
+    transform: translateY(0);
+  }
+}
+
+.details-header {
+  margin-bottom: 0.75rem;
+}
+
+.details-header h4 {
+  color: #667eea;
+  margin: 0;
+  font-size: 1.1rem;
+}
+
+.details-content {
+  background: #f8f9fa;
+  padding: 1rem;
+  border-radius: 6px;
+  overflow-x: auto;
+  font-size: 0.875rem;
+  line-height: 1.5;
+  max-height: 500px;
+  overflow-y: auto;
+  border: 1px solid #e9ecef;
+}
+
+.btn-link {
+  color: #667eea;
+  text-decoration: none;
+  font-weight: 600;
+  display: inline-block;
+  margin-top: 1rem;
+  padding: 0.5rem 0;
+  border-bottom: 2px solid #667eea;
+  transition: all 0.3s ease;
+}
+
+.btn-link:hover {
+  color: #5568d3;
+  border-bottom-color: #5568d3;
+}
+
+.error-box {
+  margin-top: 1rem;
+  padding: 1rem;
+  background: #fee;
+  color: #c33;
+  border-radius: 6px;
+  border-left: 4px solid #c33;
+}
+
+.info-box {
+  margin-top: 1rem;
+  padding: 1rem;
+  background: #e7f3ff;
+  color: #0c4a6e;
+  border-radius: 6px;
+  border-left: 4px solid #0284c7;
+}
+
+.results {
+  margin-top: 1rem;
+}
+
+.results h3 {
+  color: #065f46;
+  margin-bottom: 1rem;
+}
+
+.results-header {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  margin-bottom: 1rem;
+  flex-wrap: wrap;
+  gap: 0.5rem;
+}
+
+.results-header h3 {
+  margin: 0;
+}
+
+.pagination-info {
+  color: #666;
+  font-size: 0.95rem;
+  margin: 0;
+}
+
+/* API Controls Section */
+.controls-section {
+  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
+  border: 2px solid #667eea;
+}
+
+.controls-grid {
+  display: grid;
+  grid-template-columns: 1fr;
+  gap: 1.5rem;
+}
+
+/* Allow regular control groups (non-collapsible) to be side-by-side at wider screens */
+@media (min-width: 769px) {
+  .controls-grid {
+    grid-template-columns: repeat(2, 1fr);
+  }
+
+  /* Force collapsible groups to always span full width */
+  .controls-grid .collapsible-group {
+    grid-column: 1 / -1;
+  }
+}
+
+.control-group {
+  display: flex;
+  flex-direction: column;
+  gap: 0.5rem;
+}
+
+/* Collapsible Groups */
+.collapsible-group {
+  border: 2px solid #e9ecef;
+  border-radius: 8px;
+  padding: 0;
+  overflow: hidden;
+  transition: all 0.3s ease;
+}
+
+.collapsible-group:hover {
+  border-color: #667eea;
+  box-shadow: 0 2px 8px rgba(102, 126, 234, 0.1);
+}
+
+.collapsible-header {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  padding: 1rem;
+  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
+  cursor: pointer;
+  user-select: none;
+  transition: background 0.2s ease;
+}
+
+.collapsible-header:hover {
+  background: linear-gradient(135deg, #e9ecef 0%, #dee2e6 100%);
+}
+
+.collapsible-header .control-label {
+  margin: 0;
+  font-size: 1rem;
+  font-weight: 700;
+  color: #495057;
+}
+
+.collapse-icon {
+  font-size: 0.875rem;
+  color: #667eea;
+  font-weight: bold;
+  transition: transform 0.2s ease;
+}
+
+.collapsible-content {
+  padding: 1rem;
+  display: flex;
+  flex-direction: column;
+  gap: 0.75rem;
+  animation: slideDown 0.3s ease-out;
+}
+
+@keyframes slideDown {
+  from {
+    opacity: 0;
+    transform: translateY(-10px);
+  }
+  to {
+    opacity: 1;
+    transform: translateY(0);
+  }
+}
+
+.control-label {
+  font-weight: 600;
+  color: #495057;
+  font-size: 0.95rem;
+}
+
+.radio-group {
+  display: flex;
+  gap: 1rem;
+  flex-wrap: wrap;
+}
+
+.radio-option {
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+  cursor: pointer;
+  padding: 0.5rem 1rem;
+  background: white;
+  border: 2px solid #dee2e6;
+  border-radius: 6px;
+  transition: all 0.3s ease;
+}
+
+.radio-option:hover {
+  border-color: #667eea;
+  background: #f8f9ff;
+}
+
+.radio-option input[type='radio'] {
+  cursor: pointer;
+  width: 18px;
+  height: 18px;
+}
+
+.radio-option span {
+  font-weight: 500;
+  color: #495057;
+}
+
+.version-badge {
+  display: inline-block;
+  padding: 0.375rem 0.75rem;
+  border-radius: 6px;
+  font-size: 0.875rem;
+  font-weight: 600;
+  margin-top: 0.5rem;
+}
+
+.badge-v1 {
+  background: #fef3c7;
+  color: #92400e;
+  border: 1px solid #fbbf24;
+}
+
+.badge-v2-1 {
+  background: #d1fae5;
+  color: #065f46;
+  border: 1px solid #10b981;
+}
+
+.select-input {
+  padding: 0.5rem 0.75rem;
+  border: 2px solid #dee2e6;
+  border-radius: 6px;
+  font-size: 0.95rem;
+  background: white;
+  cursor: pointer;
+  transition: all 0.3s ease;
+  max-width: 200px;
+}
+
+.select-input:hover {
+  border-color: #667eea;
+}
+
+.select-input:focus {
+  outline: none;
+  border-color: #667eea;
+  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
+}
+
+.text-input,
+.select-input {
+  padding: 0.5rem 0.75rem;
+  border: 2px solid #dee2e6;
+  border-radius: 6px;
+  font-size: 0.95rem;
+  background: white;
+  transition: all 0.3s ease;
+  width: 100%;
+  max-width: 400px;
+}
+
+.text-input:hover,
+.select-input:hover {
+  border-color: #667eea;
+}
+
+.text-input:focus,
+.select-input:focus {
+  outline: none;
+  border-color: #667eea;
+  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
+}
+
+.text-input::placeholder {
+  color: #9ca3af;
+}
+
+.select-input {
+  cursor: pointer;
+  margin-top: 0.5rem;
+}
+
+/* OAuth Section */
+.oauth-section {
+  display: flex;
+  flex-direction: column;
+  gap: 0.5rem;
+}
+
+.oauth-status {
+  display: flex;
+  align-items: center;
+  gap: 1rem;
+  padding: 0.75rem;
+  background: white;
+  border: 2px solid #e9ecef;
+  border-radius: 6px;
+  flex-wrap: wrap;
+}
+
+@media (max-width: 480px) {
+  .oauth-status {
+    flex-direction: column;
+    align-items: flex-start;
+    gap: 0.75rem;
+  }
+}
+
+.status-badge {
+  padding: 0.375rem 0.75rem;
+  border-radius: 4px;
+  font-size: 0.875rem;
+  font-weight: 600;
+  display: inline-flex;
+  align-items: center;
+  gap: 0.5rem;
+}
+
+.status-connected {
+  background: #d1fae5;
+  color: #065f46;
+}
+
+.status-disconnected {
+  background: #fee2e2;
+  color: #991b1b;
+}
+
+.btn {
+  padding: 0.5rem 1rem;
+  border: none;
+  border-radius: 6px;
+  font-weight: 600;
+  cursor: pointer;
+  transition: all 0.2s ease;
+  font-size: 0.875rem;
+}
+
+.btn-primary {
+  background: #667eea;
+  color: white;
+}
+
+.btn-primary:hover:not(:disabled) {
+  background: #5568d3;
+  transform: translateY(-1px);
+}
+
+.btn-primary:disabled {
+  opacity: 0.6;
+  cursor: not-allowed;
+}
+
+.btn-secondary {
+  background: #e5e7eb;
+  color: #374151;
+}
+
+.btn-secondary:hover {
+  background: #d1d5db;
+}
+
+.btn-sm {
+  padding: 0.375rem 0.875rem;
+  font-size: 0.8125rem;
+}
+
+/* OAuth Toggle (legacy - can be removed) */
+.oauth-label {
+  display: flex;
+  align-items: flex-start;
+  gap: 0.5rem;
+  padding: 0.75rem;
+  background: white;
+  border: 2px dashed #dee2e6;
+  border-radius: 6px;
+  cursor: not-allowed;
+  opacity: 0.6;
+}
+
+.checkbox-input {
+  cursor: not-allowed;
+  width: 18px;
+  height: 18px;
+  margin-top: 2px;
+}
+
+.oauth-text {
+  font-weight: 500;
+  color: #495057;
+}
+
+.oauth-hint {
+  display: block;
+  font-size: 0.85rem;
+  color: #6c757d;
+  font-weight: 400;
+  margin-top: 0.25rem;
+}
+
+.scope-info {
+  display: block;
+  font-size: 0.85rem;
+  color: #0284c7;
+  font-weight: 500;
+  margin-top: 0.25rem;
+  font-style: italic;
+}
+
+.info-badge {
+  padding: 0.5rem 0.75rem;
+  background: #d1fae5;
+  color: #065f46;
+  border-radius: 6px;
+  font-size: 0.875rem;
+  font-weight: 600;
+  display: inline-flex;
+  align-items: center;
+  gap: 0.5rem;
+}
+
+.info-badge.warning {
+  background: #fef3c7;
+  color: #92400e;
+}
+
+.scope-hint {
+  display: block;
+  font-size: 0.8125rem;
+  color: #6b7280;
+  margin-top: 0.5rem;
+  font-style: italic;
+}
+
+.api-note {
+  margin-top: 0.75rem;
+  padding: 0.75rem;
+  background: #e7f3ff;
+  border-left: 3px solid #0284c7;
+  border-radius: 4px;
+  font-size: 0.95rem;
+  color: #0c4a6e;
+}
+
+/* Error Improvements */
+.error-list {
+  list-style: none;
+  padding: 0;
+  margin: 0.75rem 0;
+}
+
+.error-list li {
+  margin-bottom: 0.5rem;
+  padding: 0.5rem;
+  background: rgba(255, 255, 255, 0.5);
+  border-radius: 4px;
+}
+
+.error-status {
+  font-weight: 700;
+  margin-right: 0.5rem;
+}
+
+.error-message {
+  color: #991b1b;
+}
+
+.error-field {
+  font-style: italic;
+  color: #b91c1c;
+  margin-left: 0.5rem;
+}
+
+.help-text {
+  margin-top: 1rem;
+  padding-top: 1rem;
+  border-top: 1px solid rgba(0, 0, 0, 0.1);
+}
+
+.help-text p {
+  margin: 0.5rem 0;
+  font-weight: 600;
+}
+
+.help-text ul {
+  margin: 0.5rem 0;
+  padding-left: 1.5rem;
+}
+
+.help-text li {
+  margin: 0.25rem 0;
+}
+
+/* Load More Section */
+.load-more-section {
+  margin-top: 2rem;
+  text-align: center;
+}
+
+.btn-secondary {
+  background: #6c757d;
+  color: white;
+}
+
+.btn-secondary:hover:not(:disabled) {
+  background: #5a6268;
+  transform: translateY(-2px);
+  box-shadow: 0 4px 12px rgba(108, 117, 125, 0.4);
+}
+
+/* Search Box */
+.search-box {
+  margin-bottom: 1.5rem;
+  display: flex;
+  flex-direction: column;
+  gap: 0.5rem;
+}
+
+.search-input {
+  width: 100%;
+  padding: 0.75rem 1rem;
+  border: 2px solid #dee2e6;
+  border-radius: 6px;
+  font-size: 1rem;
+  transition: all 0.3s ease;
+}
+
+.search-input:focus {
+  outline: none;
+  border-color: #667eea;
+  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
+}
+
+.search-info {
+  color: #6c757d;
+  font-size: 0.9rem;
+  font-style: italic;
+}
+
+/* Tournament List */
+.tournament-list {
+  display: grid;
+  gap: 1.5rem;
+}
+
+.tournament-card {
+  background: white;
+  padding: 1.5rem;
+  border-radius: 8px;
+  border: 2px solid #e9ecef;
+  transition: all 0.3s ease;
+}
+
+.tournament-card:hover {
+  border-color: #667eea;
+  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.15);
+  transform: translateY(-2px);
+}
+
+.tournament-header {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  margin-bottom: 1rem;
+  gap: 1rem;
+  flex-wrap: wrap;
+}
+
+.tournament-header h4 {
+  margin: 0;
+  color: #333;
+  font-size: 1.25rem;
+  flex: 1;
+}
+
+.tournament-state {
+  padding: 0.375rem 0.75rem;
+  border-radius: 6px;
+  font-size: 0.875rem;
+  font-weight: 600;
+  text-transform: capitalize;
+}
+
+.tournament-state.pending {
+  background: #fef3c7;
+  color: #92400e;
+}
+
+.tournament-state.underway,
+.tournament-state.in_progress {
+  background: #dbeafe;
+  color: #1e40af;
+}
+
+.tournament-state.complete {
+  background: #d1fae5;
+  color: #065f46;
+}
+
+.tournament-details p {
+  margin: 0.5rem 0;
+  color: #495057;
+  font-size: 0.95rem;
+}
+
+.tournament-details strong {
+  color: #333;
+}
+
+/* Info Section */
+.info-section {
+  background: linear-gradient(135deg, #e7f3ff 0%, #dbeafe 100%);
+  border: 2px solid #0284c7;
+}
+
+.info-steps {
+  display: grid;
+  gap: 1.5rem;
+  margin-top: 1.5rem;
+}
+
+.step {
+  display: flex;
+  gap: 1rem;
+  align-items: flex-start;
+  background: white;
+  padding: 1.5rem;
+  border-radius: 8px;
+  border-left: 4px solid #0284c7;
+}
+
+.step-number {
+  flex-shrink: 0;
+  width: 40px;
+  height: 40px;
+  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+  color: white;
+  border-radius: 50%;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  font-weight: 700;
+  font-size: 1.25rem;
+}
+
+.step-content h3 {
+  margin: 0 0 0.5rem 0;
+  color: #333;
+  font-size: 1.1rem;
+}
+
+.step-content p {
+  margin: 0;
+  color: #495057;
+  line-height: 1.6;
+}
+
+.step-content a {
+  color: #667eea;
+  text-decoration: none;
+  font-weight: 600;
+  border-bottom: 1px solid #667eea;
+}
+
+.step-content a:hover {
+  color: #5568d3;
+  border-bottom-color: #5568d3;
+}
+
+/* Responsive Design */
+@media (max-width: 768px) {
+  h1 {
+    font-size: 2rem;
+  }
+
+  .tournament-header {
+    flex-direction: column;
+    align-items: flex-start;
+  }
+
+  .step {
+    flex-direction: column;
+  }
+
+  .step-number {
+    width: 36px;
+    height: 36px;
+    font-size: 1.1rem;
+  }
+
+  .btn {
+    width: 100%;
+  }
+}
+
+.search-box {
+  margin-bottom: 1.5rem;
+  display: flex;
+  flex-direction: column;
+  gap: 0.5rem;
+}
+
+.search-input {
+  width: 100%;
+  padding: 0.75rem 1rem;
+  border: 2px solid #e9ecef;
+  border-radius: 8px;
+  font-size: 1rem;
+  transition: border-color 0.3s ease;
+}
+
+.search-input:focus {
+  outline: none;
+  border-color: #667eea;
+  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
+}
+
+.search-info {
+  color: #666;
+  font-size: 0.9rem;
+  font-style: italic;
+}
+
+.tournament-list {
+  display: grid;
+  gap: 1rem;
+  margin-top: 1rem;
+}
+
+.tournament-card {
+  background: white;
+  padding: 1.5rem;
+  border-radius: 8px;
+  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
+}
+
+.tournament-header {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  margin-bottom: 1rem;
+}
+
+.tournament-header h4 {
+  margin: 0;
+  color: #333;
+  font-size: 1.25rem;
+}
+
+.tournament-state {
+  padding: 0.25rem 0.75rem;
+  border-radius: 12px;
+  font-size: 0.75rem;
+  font-weight: 600;
+  text-transform: uppercase;
+}
+
+.tournament-state.pending {
+  background: #fef3c7;
+  color: #92400e;
+}
+
+.tournament-state.underway {
+  background: #dbeafe;
+  color: #1e40af;
+}
+
+.tournament-state.complete {
+  background: #d1fae5;
+  color: #065f46;
+}
+
+.tournament-details p {
+  margin: 0.5rem 0;
+  color: #666;
+  font-size: 0.95rem;
+}
+
+.tournament-details-box {
+  background: white;
+  padding: 1.5rem;
+  border-radius: 8px;
+  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
+}
+
+.tournament-details-box pre {
+  background: #f8f9fa;
+  padding: 1rem;
+  border-radius: 6px;
+  overflow-x: auto;
+  font-size: 0.875rem;
+  line-height: 1.5;
+}
+
+.info-section {
+  background: #e7f3ff;
+  border-color: #667eea;
+}
+
+.info-section h2 {
+  color: #667eea;
+}
+
+.info-steps {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
+  gap: 1.5rem;
+  margin-top: 1.5rem;
+}
+
+.step {
+  display: flex;
+  gap: 1rem;
+  background: white;
+  padding: 1.5rem;
+  border-radius: 8px;
+  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
+}
+
+.step-number {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  width: 40px;
+  height: 40px;
+  border-radius: 50%;
+  background: #667eea;
+  color: white;
+  font-weight: 700;
+  font-size: 1.1rem;
+  flex-shrink: 0;
+}
+
+.step-content h3 {
+  margin: 0 0 0.5rem 0;
+  color: #333;
+  font-size: 1.1rem;
+}
+
+.step-content p {
+  margin: 0;
+  color: #666;
+  font-size: 0.95rem;
+  line-height: 1.5;
+}
+
+.step-content a {
+  color: #667eea;
+  text-decoration: none;
+  font-weight: 600;
+}
+
+.step-content a:hover {
+  text-decoration: underline;
+}
+
+.code-block {
+  background: #f8f9fa;
+  padding: 0.75rem;
+  border-radius: 6px;
+  font-family: 'Courier New', monospace;
+  font-size: 0.9rem;
+  overflow-x: auto;
+  margin: 0.5rem 0;
+}
+
+code {
+  background: #f8f9fa;
+  padding: 0.2rem 0.4rem;
+  border-radius: 3px;
+  font-family: 'Courier New', monospace;
+  font-size: 0.9rem;
+}
+
+.help-text {
+  margin-top: 0.5rem;
+  font-size: 0.9rem;
+  opacity: 0.9;
+}
+
+.help-text ul {
+  margin: 0.5rem 0;
+  padding-left: 1.5rem;
+}
+
+.help-text li {
+  margin: 0.25rem 0;
+}
+</style>