Switch budget tab to attendee dropdown

public/index.html

@@ -930,6 +930,39 @@
       grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
       gap: 12px;
     }
+    .budget-controls {
+      margin-top: 12px;
+      display: flex;
+      flex-wrap: wrap;
+      align-items: center;
+      gap: 10px;
+    }
+    .budget-controls label {
+      font-size: 0.68rem;
+      text-transform: uppercase;
+      letter-spacing: 0.8px;
+      color: #fbc08c;
+      font-weight: 700;
+    }
+    .budget-controls select {
+      min-width: 180px;
+      padding: 8px 12px;
+      border-radius: 10px;
+      border: 1px solid rgba(255, 255, 255, 0.12);
+      background: rgba(11, 13, 20, 0.9);
+      color: #fff;
+      font-size: 0.84rem;
+      outline: none;
+      cursor: pointer;
+    }
+    .budget-controls select:focus {
+      border-color: rgba(251, 191, 36, 0.55);
+      box-shadow: 0 0 0 2px rgba(251, 191, 36, 0.08);
+    }
+    .budget-selected-note {
+      font-size: 0.72rem;
+      color: #ffcf9c;
+    }
     .budget-table-wrap {
       margin-top: 16px;
       overflow-x: auto;
@@ -1586,6 +1619,7 @@
     priceUpdatedAt: '',
     priceHistoryRunCount: 0,
     sortMode: localStorage.getItem('cabo_sort_mode') || 'vote-desc',
+    budgetGuestCount: Number(localStorage.getItem('cabo_budget_guest_count') || 0),
     priceSourceSelections: (() => {
       try {
         return JSON.parse(localStorage.getItem('cabo_price_source_selections') || '{}');
@@ -1672,6 +1706,7 @@
         if (!res.ok) return;
         const payload = await res.json();
         state.guestRoster = Array.isArray(payload.guests) ? payload.guests : [];
+        syncBudgetGuestCount();
         renderGuestAuthOptions();
         render();
       } catch {
@@ -2665,6 +2700,7 @@
 
     const groupedScenarios = getBudgetScenarioGroups();
     const groupSizeLimit = getBudgetGroupSizeLimit();
+    const selectedGroupSize = getSelectedBudgetGuestCount(groupSizeLimit);
     const rosterCount = Array.isArray(state.guestRoster) ? state.guestRoster.length : 0;
     const groomCount = Array.isArray(state.guestRoster)
       ? state.guestRoster.filter((guest) => guest.role === 'groom').length
@@ -2672,40 +2708,32 @@
     const bestManCount = Array.isArray(state.guestRoster)
       ? state.guestRoster.filter((guest) => guest.role === 'best-man').length
       : 0;
-    const rows = Array.from({ length: groupSizeLimit }, (_, index) => index + 1)
-      .map((groupSize) => ({
-        groupSize,
-        budget: getDynamicBudgetScenario('Budget', groupSize, groupedScenarios),
-        balanced: getDynamicBudgetScenario('Balanced', groupSize, groupedScenarios),
-        splurge: getDynamicBudgetScenario('Splurge', groupSize, groupedScenarios),
-      }));
+    const selectedScenarios = {
+      budget: getDynamicBudgetScenario('Budget', selectedGroupSize, groupedScenarios),
+      balanced: getDynamicBudgetScenario('Balanced', selectedGroupSize, groupedScenarios),
+      splurge: getDynamicBudgetScenario('Splurge', selectedGroupSize, groupedScenarios),
+    };
 
     return `
       <section class="budget-board">
         <h2>💸 Budget Cheat Sheet</h2>
-        <p>These numbers recalculate from the latest automation run and scale from 1 attendee up to the full confirmed roster so we can compare Budget, Balanced, and Splurge tracks side by side.</p>
+        <p>Pick the attendee count you want to model. The app will show only the live Budget, Balanced, and Splurge data for that one group size.</p>
         <div class="budget-stamp">Confirmed roster: ${rosterCount || 'loading'} attendee${rosterCount === 1 ? '' : 's'}${groomCount ? ` · ${groomCount} groom${groomCount === 1 ? '' : 's'}` : ''}${bestManCount ? ` · ${bestManCount} best man${bestManCount === 1 ? '' : 's'}` : ''} · max size ${groupSizeLimit}</div>
-        <div class="budget-table-wrap">
-          <table class="budget-table">
-            <thead>
-              <tr>
-                <th>Attendees</th>
-                <th>Budget Track</th>
-                <th>Balanced Track</th>
-                <th>Splurge Track</th>
-              </tr>
-            </thead>
-            <tbody>
-              ${rows.map((row) => `
-                <tr${row.groupSize === groupSizeLimit ? ' class="is-max"' : ''}>
-                  <td class="budget-attendee-count">${row.groupSize}</td>
-                  ${renderBudgetCell(row.budget)}
-                  ${renderBudgetCell(row.balanced)}
-                  ${renderBudgetCell(row.splurge)}
-                </tr>
-              `).join('')}
-            </tbody>
-          </table>
+        <div class="budget-controls">
+          <label for="budgetGuestCountSelect">Attendees</label>
+          <select id="budgetGuestCountSelect" onchange="setBudgetGuestCount(this.value)">
+            ${Array.from({ length: groupSizeLimit }, (_, index) => index + 1).map((groupSize) => `
+              <option value="${groupSize}"${groupSize === selectedGroupSize ? ' selected' : ''}>${groupSize} attendee${groupSize === 1 ? '' : 's'}</option>
+            `).join('')}
+          </select>
+          <div class="budget-selected-note">Showing live pricing for ${selectedGroupSize} attendee${selectedGroupSize === 1 ? '' : 's'}.</div>
+        </div>
+        <div class="budget-grid">
+          ${[
+            selectedScenarios.budget,
+            selectedScenarios.balanced,
+            selectedScenarios.splurge,
+          ].map((scenario) => renderBudgetCard(scenario, selectedGroupSize)).join('')}
         </div>
       </section>
     `;
@@ -2728,6 +2756,29 @@
     return Math.max(rosterCount || 0, seededMax || 0, 1);
   }
 
+  function getSelectedBudgetGuestCount(groupSizeLimit = getBudgetGroupSizeLimit()) {
+    const parsed = Number(state.budgetGuestCount);
+    if (Number.isFinite(parsed) && parsed >= 1) {
+      return Math.min(Math.floor(parsed), groupSizeLimit);
+    }
+
+    return groupSizeLimit;
+  }
+
+  function syncBudgetGuestCount() {
+    const nextCount = getSelectedBudgetGuestCount(getBudgetGroupSizeLimit());
+    state.budgetGuestCount = nextCount;
+    localStorage.setItem('cabo_budget_guest_count', String(nextCount));
+  }
+
+  function setBudgetGuestCount(value) {
+    const nextCount = Number.parseInt(value, 10);
+    if (!Number.isFinite(nextCount) || nextCount < 1) return;
+    state.budgetGuestCount = Math.min(nextCount, getBudgetGroupSizeLimit());
+    localStorage.setItem('cabo_budget_guest_count', String(state.budgetGuestCount));
+    render();
+  }
+
   function getDynamicBudgetScenario(tier, groupSize, groupedScenarios) {
     const scenarios = groupedScenarios[tier] || [];
     if (!scenarios.length) {
@@ -2811,6 +2862,44 @@
     `;
   }
 
+  function renderBudgetCard(scenario, selectedGroupSize) {
+    if (!scenario) {
+      return `
+        <article class="budget-card">
+          <div class="budget-meta">
+            <span>${selectedGroupSize} attendee${selectedGroupSize === 1 ? '' : 's'}</span>
+            <span class="budget-tier budget-tier-pill">n/a</span>
+          </div>
+          <h3>No live budget</h3>
+          <div class="budget-price">n/a</div>
+        </article>
+      `;
+    }
+
+    const note = scenario.derived
+      ? 'Interpolated from the latest live budget anchors.'
+      : 'From the latest live automation run.';
+
+    return `
+      <article class="budget-card">
+        <div class="budget-meta">
+          <span>${selectedGroupSize} attendee${selectedGroupSize === 1 ? '' : 's'}</span>
+          <span class="budget-tier ${scenario.tier.toLowerCase()}">${escapeHtml(scenario.tier)}</span>
+        </div>
+        <h3>${escapeHtml(scenario.tier)} Track</h3>
+        <div class="budget-price">${escapeHtml(formatCurrency(scenario.perPerson))}</div>
+        <div class="budget-total">${escapeHtml(formatCurrency(scenario.groupTotal))} group total</div>
+        <div class="budget-summary">${escapeHtml(scenario.summary || '')}</div>
+        <ul>
+          ${[
+            ...(Array.isArray(scenario.notes) ? scenario.notes.slice(0, 4) : []),
+            note,
+          ].filter(Boolean).map((item) => `<li>${escapeHtml(item)}</li>`).join('')}
+        </ul>
+      </article>
+    `;
+  }
+
   // ── Voting ────────────────────────────────────────────────
   function toggleVote(optionId) {
     openVoteConfirm(optionId);