diff --git a/src/App.css b/src/App.css
index 741214f..48bbe95 100644
--- a/src/App.css
+++ b/src/App.css
@@ -75,7 +75,9 @@
     padding: 2rem;
     border-radius: 20px;
     border-top: 4px solid #22c55e;
-    box-shadow: 0 8px 32px rgba(34, 197, 94, 0.12), 0 2px 8px rgba(0, 0, 0, 0.06);
+    box-shadow:
+        0 8px 32px rgba(34, 197, 94, 0.12),
+        0 2px 8px rgba(0, 0, 0, 0.06);
     width: 100%;
     max-width: 360px;
     text-align: center;
@@ -202,7 +204,9 @@
     background: #fff;
     border-radius: 20px;
     padding: 1.625rem 1.5rem;
-    box-shadow: 0 2px 16px rgba(34, 197, 94, 0.1), 0 1px 4px rgba(0, 0, 0, 0.04);
+    box-shadow:
+        0 2px 16px rgba(34, 197, 94, 0.1),
+        0 1px 4px rgba(0, 0, 0, 0.04);
     border: 1px solid rgba(34, 197, 94, 0.08);
     flex: 1;
     min-height: 0;
@@ -248,7 +252,9 @@
     border: none;
     border-bottom: 1px solid #d1e7d1;
     outline: none;
-    transition: border-color 0.2s, box-shadow 0.2s;
+    transition:
+        border-color 0.2s,
+        box-shadow 0.2s;
 }
 
 .journal-title-input::placeholder {
@@ -465,7 +471,9 @@
     background: #fff;
     border-radius: 18px;
     padding: 1.125rem 1rem;
-    box-shadow: 0 2px 12px rgba(34, 197, 94, 0.08), 0 1px 4px rgba(0, 0, 0, 0.03);
+    box-shadow:
+        0 2px 12px rgba(34, 197, 94, 0.08),
+        0 1px 4px rgba(0, 0, 0, 0.03);
     border: 1px solid rgba(34, 197, 94, 0.08);
     margin-bottom: 1.125rem;
 }
@@ -599,7 +607,9 @@
     padding: 1rem 1rem 1rem 0.875rem;
     border-radius: 14px;
     border-left: 4px solid #22c55e;
-    box-shadow: 0 2px 8px rgba(34, 197, 94, 0.08), 0 1px 3px rgba(0, 0, 0, 0.04);
+    box-shadow:
+        0 2px 8px rgba(34, 197, 94, 0.08),
+        0 1px 3px rgba(0, 0, 0, 0.04);
     cursor: pointer;
     transition: all 0.2s ease;
     text-align: left;
@@ -607,7 +617,9 @@
 }
 .entry-card:hover {
     transform: translateY(-2px);
-    box-shadow: 0 6px 20px rgba(34, 197, 94, 0.15), 0 2px 6px rgba(0, 0, 0, 0.05);
+    box-shadow:
+        0 6px 20px rgba(34, 197, 94, 0.15),
+        0 2px 6px rgba(0, 0, 0, 0.05);
     border-left-color: #16a34a;
 }
 
@@ -701,7 +713,9 @@
     background: #fff;
     border-radius: 18px;
     padding: 1rem 1.125rem;
-    box-shadow: 0 2px 12px rgba(34, 197, 94, 0.08), 0 1px 4px rgba(0, 0, 0, 0.03);
+    box-shadow:
+        0 2px 12px rgba(34, 197, 94, 0.08),
+        0 1px 4px rgba(0, 0, 0, 0.03);
     border: 1px solid rgba(34, 197, 94, 0.08);
 }
 
@@ -774,7 +788,9 @@
 .settings-card {
     background: #fff;
     border-radius: 18px;
-    box-shadow: 0 2px 12px rgba(34, 197, 94, 0.08), 0 1px 4px rgba(0, 0, 0, 0.03);
+    box-shadow:
+        0 2px 12px rgba(34, 197, 94, 0.08),
+        0 1px 4px rgba(0, 0, 0, 0.03);
     border: 1px solid rgba(34, 197, 94, 0.06);
     overflow: hidden;
 }
@@ -923,7 +939,7 @@
 }
 
 .settings-theme-dot-beige {
-    background: #f5f0e8;
+    background: #eef6ee;
 }
 .settings-theme-dot-dark {
     background: #1a1a1a;
@@ -935,6 +951,11 @@
     opacity: 0.6;
     cursor: not-allowed;
 }
+.settings-theme-dot-active {
+    border-color: #22c55e;
+    box-shadow: 0 0 0 2px #22c55e;
+    transform: scale(1.1);
+}
 
 /* Clear Data */
 .settings-clear-btn {
@@ -1038,7 +1059,9 @@
     max-height: 85vh;
     overflow-y: auto;
     padding: 1.25rem 1.25rem calc(1.25rem + env(safe-area-inset-bottom));
-    box-shadow: 0 -4px 32px rgba(34, 197, 94, 0.12), 0 -1px 8px rgba(0, 0, 0, 0.06);
+    box-shadow:
+        0 -4px 32px rgba(34, 197, 94, 0.12),
+        0 -1px 8px rgba(0, 0, 0, 0.06);
     border-top: 3px solid #22c55e;
     animation: modalSlideUp 0.25s ease;
     -webkit-overflow-scrolling: touch;
@@ -1197,3 +1220,555 @@
         font-size: 1.0625rem;
     }
 }
+
+/* ============================
+   CONFIRM DELETE MODAL
+   ============================ */
+.confirm-modal-overlay {
+    position: fixed;
+    inset: 0;
+    z-index: 2000;
+    background: rgba(0, 0, 0, 0.5);
+    backdrop-filter: blur(4px);
+    -webkit-backdrop-filter: blur(4px);
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    padding: 1.5rem;
+    animation: modalFadeIn 0.2s ease;
+}
+
+.confirm-modal {
+    background: #fff;
+    border-radius: 20px;
+    padding: 1.75rem 1.5rem;
+    width: 100%;
+    max-width: 340px;
+    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
+    text-align: center;
+    animation: modalScaleIn 0.2s ease;
+}
+
+.confirm-modal-icon {
+    font-size: 2.5rem;
+    margin-bottom: 0.75rem;
+}
+
+.confirm-modal-title {
+    margin: 0 0 0.5rem;
+    font-size: 1.25rem;
+    font-weight: 700;
+    color: #dc2626;
+    font-family: "Sniglet", system-ui;
+}
+
+.confirm-modal-desc {
+    margin: 0 0 1rem;
+    font-size: 0.8125rem;
+    line-height: 1.5;
+    color: #6b7280;
+}
+
+.confirm-modal-label {
+    margin: 0 0 0.5rem;
+    font-size: 0.75rem;
+    font-weight: 600;
+    color: #374151;
+    text-align: left;
+}
+
+.confirm-modal-input {
+    width: 100%;
+    padding: 0.625rem 0.75rem;
+    font-size: 0.875rem;
+    font-family: "Sniglet", system-ui;
+    border: 1.5px solid #e5e7eb;
+    border-radius: 10px;
+    outline: none;
+    transition: border-color 0.2s;
+    margin-bottom: 1rem;
+    color: #1a1a1a;
+    background: #f9fafb;
+}
+
+.confirm-modal-input:focus {
+    border-color: #dc2626;
+    background: #fff;
+}
+
+.confirm-modal-input::placeholder {
+    color: #c4c4c4;
+}
+
+.confirm-modal-actions {
+    display: flex;
+    gap: 0.625rem;
+}
+
+.confirm-modal-cancel {
+    flex: 1;
+    padding: 0.625rem;
+    font-size: 0.875rem;
+    font-weight: 600;
+    font-family: "Sniglet", system-ui;
+    color: #6b7280;
+    background: #f3f4f6;
+    border: none;
+    border-radius: 10px;
+    cursor: pointer;
+    transition: background 0.2s;
+}
+
+.confirm-modal-cancel:hover:not(:disabled) {
+    background: #e5e7eb;
+}
+
+.confirm-modal-delete {
+    flex: 1;
+    padding: 0.625rem;
+    font-size: 0.875rem;
+    font-weight: 600;
+    font-family: "Sniglet", system-ui;
+    color: #fff;
+    background: #dc2626;
+    border: none;
+    border-radius: 10px;
+    cursor: pointer;
+    transition: background 0.2s;
+}
+
+.confirm-modal-delete:hover:not(:disabled) {
+    background: #b91c1c;
+}
+
+.confirm-modal-delete:disabled {
+    opacity: 0.5;
+    cursor: not-allowed;
+}
+
+/* ============================
+   DARK THEME
+   ============================ */
+
+/* -- Page backgrounds -- */
+[data-theme="dark"] .home-page,
+[data-theme="dark"] .history-page,
+[data-theme="dark"] .settings-page {
+    background: #0f0f0f;
+}
+
+/* -- Cards & surfaces -- */
+[data-theme="dark"] .journal-card,
+[data-theme="dark"] .calendar-card,
+[data-theme="dark"] .settings-card,
+[data-theme="dark"] .settings-profile,
+[data-theme="dark"] .entry-card {
+    background: #1a1a1a;
+    border-color: rgba(74, 222, 128, 0.12);
+    box-shadow:
+        0 2px 16px rgba(0, 0, 0, 0.4),
+        0 0 0 1px rgba(74, 222, 128, 0.06);
+}
+
+/* -- Primary text (headings) -- */
+[data-theme="dark"] .journal-prompt,
+[data-theme="dark"] .history-header-text h1,
+[data-theme="dark"] .settings-header-text h1,
+[data-theme="dark"] .entry-title,
+[data-theme="dark"] .settings-profile-name,
+[data-theme="dark"] .settings-item-title,
+[data-theme="dark"] .calendar-month {
+    color: #e8f5e8;
+}
+
+/* -- Input text -- */
+[data-theme="dark"] .journal-title-input,
+[data-theme="dark"] .journal-entry-textarea {
+    color: #d1d5db;
+}
+
+[data-theme="dark"] .journal-title-input {
+    border-bottom-color: #2a2a2a;
+}
+
+[data-theme="dark"] .journal-title-input:focus {
+    border-bottom-color: #4ade80;
+    box-shadow: 0 1px 0 0 rgba(74, 222, 128, 0.4);
+}
+
+/* -- Placeholder text -- */
+[data-theme="dark"] .journal-title-input::placeholder,
+[data-theme="dark"] .journal-entry-textarea::placeholder {
+    color: #4a5a4a;
+}
+
+/* -- Muted text -- */
+[data-theme="dark"] .journal-date,
+[data-theme="dark"] .history-subtitle,
+[data-theme="dark"] .settings-subtitle,
+[data-theme="dark"] .entry-preview,
+[data-theme="dark"] .entry-date,
+[data-theme="dark"] .entry-time,
+[data-theme="dark"] .settings-item-subtitle,
+[data-theme="dark"] .settings-section-title,
+[data-theme="dark"] .recent-entries-title,
+[data-theme="dark"] .calendar-weekday {
+    color: #7a8a7a;
+}
+
+/* -- Green accent text brighter in dark -- */
+[data-theme="dark"] .journal-date {
+    color: #4ade80;
+}
+
+[data-theme="dark"] .login-card__title {
+    color: #4ade80;
+}
+
+/* -- Calendar -- */
+[data-theme="dark"] .calendar-day {
+    color: #b0b8b0;
+}
+
+[data-theme="dark"] .calendar-day:not(.calendar-day-empty):hover {
+    background: rgba(74, 222, 128, 0.12);
+    color: #4ade80;
+}
+
+[data-theme="dark"] .calendar-day-has-entry {
+    background: rgba(74, 222, 128, 0.18);
+    color: #4ade80;
+}
+
+[data-theme="dark"] .calendar-day-has-entry:hover {
+    background: rgba(74, 222, 128, 0.28);
+}
+
+[data-theme="dark"] .calendar-day-today {
+    background: #22c55e;
+    color: #fff;
+}
+
+[data-theme="dark"] .calendar-day-today:hover {
+    background: #16a34a;
+}
+
+[data-theme="dark"] .calendar-day-selected {
+    box-shadow: inset 0 0 0 2px #4ade80;
+}
+
+[data-theme="dark"]
+    .calendar-day-selected:not(.calendar-day-today):not(
+        .calendar-day-has-entry
+    ) {
+    background: rgba(74, 222, 128, 0.1);
+    color: #4ade80;
+}
+
+[data-theme="dark"] .calendar-nav-btn:hover {
+    background: rgba(74, 222, 128, 0.1);
+    color: #4ade80;
+}
+
+/* -- Bottom nav -- */
+[data-theme="dark"] .bottom-nav {
+    background: rgba(20, 20, 20, 0.97);
+    border-top-color: rgba(74, 222, 128, 0.1);
+}
+
+[data-theme="dark"] .bottom-nav-btn {
+    color: #5a6a5a;
+}
+
+[data-theme="dark"] .bottom-nav-btn:hover {
+    color: #4ade80;
+    background: rgba(74, 222, 128, 0.08);
+}
+
+[data-theme="dark"] .bottom-nav-btn-active {
+    background: #22c55e;
+    color: #fff;
+}
+
+[data-theme="dark"] .bottom-nav-btn-active:hover {
+    background: #16a34a;
+    color: #fff;
+}
+
+/* -- Write button -- */
+[data-theme="dark"] .journal-write-btn {
+    background: #22c55e;
+    box-shadow:
+        0 4px 16px rgba(74, 222, 128, 0.35),
+        0 0 24px rgba(74, 222, 128, 0.1);
+}
+
+[data-theme="dark"] .journal-write-btn:hover:not(:disabled) {
+    background: #16a34a;
+    box-shadow:
+        0 6px 24px rgba(74, 222, 128, 0.45),
+        0 0 32px rgba(74, 222, 128, 0.15);
+}
+
+/* -- Home login link -- */
+[data-theme="dark"] .home-login-link {
+    background: #22c55e;
+    box-shadow: 0 2px 12px rgba(74, 222, 128, 0.25);
+}
+
+/* -- Entry card green accents -- */
+[data-theme="dark"] .entry-card {
+    border-left-color: #4ade80;
+}
+
+[data-theme="dark"] .entry-card:hover {
+    box-shadow:
+        0 6px 24px rgba(74, 222, 128, 0.12),
+        0 2px 8px rgba(0, 0, 0, 0.3);
+    border-left-color: #22c55e;
+}
+
+/* -- Settings icon backgrounds -- */
+[data-theme="dark"] .settings-item-icon-green {
+    background: rgba(74, 222, 128, 0.12);
+    color: #4ade80;
+}
+
+[data-theme="dark"] .settings-item-icon-gray {
+    background: rgba(156, 163, 175, 0.1);
+    color: #9ca3af;
+}
+
+[data-theme="dark"] .settings-item-icon-orange {
+    background: rgba(251, 146, 60, 0.12);
+    color: #fb923c;
+}
+
+[data-theme="dark"] .settings-item-icon-blue {
+    background: rgba(96, 165, 250, 0.12);
+    color: #60a5fa;
+}
+
+/* -- Settings buttons -- */
+[data-theme="dark"] .settings-clear-btn {
+    background: #1a1a1a;
+    color: #f87171;
+    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
+}
+
+[data-theme="dark"] .settings-clear-btn:hover {
+    background: rgba(239, 68, 68, 0.08);
+}
+
+[data-theme="dark"] .settings-signout-btn {
+    background: #1a1a1a;
+    color: #9ca3af;
+    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
+}
+
+[data-theme="dark"] .settings-signout-btn:hover {
+    background: rgba(74, 222, 128, 0.06);
+    color: #d1d5db;
+}
+
+/* -- Settings profile badge -- */
+[data-theme="dark"] .settings-profile-badge {
+    background: #16a34a;
+    color: #fff;
+}
+
+/* -- Settings divider -- */
+[data-theme="dark"] .settings-divider {
+    background: #2a2a2a;
+}
+
+/* -- Settings item hover -- */
+[data-theme="dark"] .settings-item-button:hover {
+    background: rgba(74, 222, 128, 0.06);
+}
+
+/* -- Settings toggle -- */
+[data-theme="dark"] .settings-toggle-slider {
+    background: #333;
+}
+
+[data-theme="dark"] .settings-toggle input:checked + .settings-toggle-slider {
+    background: #22c55e;
+}
+
+/* -- Settings theme dot -- */
+[data-theme="dark"] .settings-theme-dot {
+    border-color: rgba(255, 255, 255, 0.12);
+}
+
+[data-theme="dark"] .settings-theme-dot-active {
+    border-color: #4ade80;
+    box-shadow: 0 0 0 2px #4ade80;
+}
+
+/* -- Settings version -- */
+[data-theme="dark"] .settings-version {
+    color: #3a3a3a;
+}
+
+/* -- History search button -- */
+[data-theme="dark"] .history-search-btn {
+    background: #1a1a1a;
+    border-color: #2a2a2a;
+    color: #7a8a7a;
+}
+
+[data-theme="dark"] .history-search-btn:hover {
+    background: rgba(74, 222, 128, 0.08);
+    border-color: #4ade80;
+    color: #4ade80;
+}
+
+/* -- Spinners -- */
+[data-theme="dark"] .protected-route__spinner,
+[data-theme="dark"] .login-page__spinner {
+    border-color: #2a2a2a;
+    border-top-color: #4ade80;
+}
+
+[data-theme="dark"] .protected-route__loading {
+    background: #0f0f0f;
+    color: #5a6a5a;
+}
+
+/* -- Icon btn hover -- */
+[data-theme="dark"] .journal-icon-btn:hover {
+    color: #4ade80;
+    background: rgba(74, 222, 128, 0.1);
+}
+
+/* -- Entry modal -- */
+[data-theme="dark"] .entry-modal {
+    background: #1a1a1a;
+    border-top-color: #4ade80;
+    box-shadow:
+        0 -4px 32px rgba(0, 0, 0, 0.5),
+        0 -1px 0 rgba(74, 222, 128, 0.2);
+}
+
+[data-theme="dark"] .entry-modal-title {
+    color: #e8f5e8;
+}
+
+[data-theme="dark"] .entry-modal-content {
+    color: #b0b8b0;
+}
+
+[data-theme="dark"] .entry-modal-date {
+    color: #7a8a7a;
+}
+
+[data-theme="dark"] .entry-modal-time {
+    color: #5a6a5a;
+}
+
+[data-theme="dark"] .entry-modal-close {
+    background: #252525;
+    color: #7a8a7a;
+}
+
+[data-theme="dark"] .entry-modal-close:hover {
+    background: rgba(74, 222, 128, 0.12);
+    color: #4ade80;
+}
+
+[data-theme="dark"] .entry-modal-badge {
+    background: rgba(74, 222, 128, 0.12);
+    color: #4ade80;
+}
+
+[data-theme="dark"] .entry-modal-error {
+    background: rgba(239, 68, 68, 0.1);
+    color: #f87171;
+}
+
+[data-theme="dark"] .entry-modal-overlay {
+    background: rgba(0, 0, 0, 0.7);
+}
+
+/* -- Confirm delete modal -- */
+[data-theme="dark"] .confirm-modal-overlay {
+    background: rgba(0, 0, 0, 0.7);
+}
+
+[data-theme="dark"] .confirm-modal {
+    background: #1a1a1a;
+    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
+}
+
+[data-theme="dark"] .confirm-modal-title {
+    color: #f87171;
+}
+
+[data-theme="dark"] .confirm-modal-desc {
+    color: #7a8a7a;
+}
+
+[data-theme="dark"] .confirm-modal-label {
+    color: #b0b8b0;
+}
+
+[data-theme="dark"] .confirm-modal-input {
+    background: #111;
+    border-color: #2a2a2a;
+    color: #d1d5db;
+}
+
+[data-theme="dark"] .confirm-modal-input:focus {
+    border-color: #ef4444;
+    background: #151515;
+}
+
+[data-theme="dark"] .confirm-modal-cancel {
+    background: #252525;
+    color: #9ca3af;
+}
+
+[data-theme="dark"] .confirm-modal-cancel:hover:not(:disabled) {
+    background: #333;
+}
+
+/* -- Login page -- */
+[data-theme="dark"] .login-page {
+    background: linear-gradient(160deg, #0f0f0f 0%, #0a2e14 50%, #0f0f0f 100%);
+}
+
+[data-theme="dark"] .login-card {
+    background: #1a1a1a;
+    border-top-color: #4ade80;
+    box-shadow:
+        0 8px 32px rgba(0, 0, 0, 0.5),
+        0 0 0 1px rgba(74, 222, 128, 0.08);
+}
+
+[data-theme="dark"] .login-card__tagline {
+    color: #7a8a7a;
+}
+
+[data-theme="dark"] .login-card__error {
+    background: rgba(239, 68, 68, 0.1);
+    color: #f87171;
+}
+
+/* -- Google sign-in btn -- */
+[data-theme="dark"] .google-sign-in-btn {
+    background: #252525;
+    border-color: #333;
+    color: #d1d5db;
+}
+
+[data-theme="dark"] .google-sign-in-btn:hover:not(:disabled) {
+    background: #2a2a2a;
+    border-color: rgba(74, 222, 128, 0.3);
+    box-shadow: 0 1px 8px rgba(74, 222, 128, 0.1);
+}
+
+/* -- Success/error message inline -- */
+[data-theme="dark"] .settings-container [style*="backgroundColor"] {
+    /* Handled inline but these override for common patterns */
+}
diff --git a/src/lib/api.ts b/src/lib/api.ts
index b5f66ad..16b096a 100644
--- a/src/lib/api.ts
+++ b/src/lib/api.ts
@@ -80,6 +80,16 @@ export async function updateUserProfile(
   })
 }
 
+export async function deleteUser(userId: string, token: string) {
+  return apiCall<{ message: string; user_deleted: number; entries_deleted: number }>(
+    `/api/users/${userId}`,
+    {
+      method: 'DELETE',
+      token,
+    }
+  )
+}
+
 // ============================================
 // ENTRY ENDPOINTS
 // ============================================
diff --git a/src/pages/HistoryPage.tsx b/src/pages/HistoryPage.tsx
index c9c4a55..e676ac2 100644
--- a/src/pages/HistoryPage.tsx
+++ b/src/pages/HistoryPage.tsx
@@ -180,12 +180,12 @@ export default function HistoryPage() {
           <h1>History</h1>
           <p className="history-subtitle">Your past reflections</p>
         </div>
-        <button type="button" className="history-search-btn" title="Search entries">
+        {/* <button type="button" className="history-search-btn" title="Search entries">
           <svg width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
             <circle cx="11" cy="11" r="8"></circle>
             <path d="m21 21-4.35-4.35"></path>
           </svg>
-        </button>
+        </button> */}
       </header>
 
       <main className="history-container">
diff --git a/src/pages/SettingsPage.tsx b/src/pages/SettingsPage.tsx
index a3d87cb..fff7d14 100644
--- a/src/pages/SettingsPage.tsx
+++ b/src/pages/SettingsPage.tsx
@@ -1,43 +1,80 @@
-import { useState } from 'react'
+import { useState, useEffect, useCallback } from 'react'
 import { useAuth } from '../contexts/AuthContext'
-import { updateUserProfile } from '../lib/api'
+import { deleteUser as deleteUserApi } from '../lib/api'
+import { clearDeviceKey, clearEncryptedSecretKey } from '../lib/crypto'
 import BottomNav from '../components/BottomNav'
 
 export default function SettingsPage() {
   const { user, userId, signOut, loading } = useAuth()
-  const [passcodeEnabled, setPasscodeEnabled] = useState(false)
-  const [faceIdEnabled, setFaceIdEnabled] = useState(false)
-  const [theme, setTheme] = useState<'light' | 'dark'>('light')
-  const [saving, setSaving] = useState(false)
+  // const [passcodeEnabled, setPasscodeEnabled] = useState(false) // Passcode lock — disabled for now
+  // const [faceIdEnabled, setFaceIdEnabled] = useState(false)     // Face ID — disabled for now
+  const [theme, setTheme] = useState<'light' | 'dark'>(() => {
+    return (localStorage.getItem('gj-theme') as 'light' | 'dark') || 'light'
+  })
   const [message, setMessage] = useState<{ type: 'success' | 'error'; text: string } | null>(null)
 
+  // Clear Data confirmation modal state
+  const [showClearModal, setShowClearModal] = useState(false)
+  const [confirmEmail, setConfirmEmail] = useState('')
+  const [deleting, setDeleting] = useState(false)
+
   const displayName = user?.displayName || 'User'
-  const photoURL = user?.photoURL || ''
 
-  const handleThemeChange = async (newTheme: 'light' | 'dark') => {
-    if (!userId || !user) return
+  // Apply theme to DOM
+  const applyTheme = useCallback((t: 'light' | 'dark') => {
+    document.documentElement.setAttribute('data-theme', t)
+    localStorage.setItem('gj-theme', t)
+  }, [])
 
-    setSaving(true)
+  // Apply saved theme on mount
+  useEffect(() => {
+    applyTheme(theme)
+  }, [theme, applyTheme])
+
+  const handleThemeChange = (newTheme: 'light' | 'dark') => {
+    setTheme(newTheme)
+    applyTheme(newTheme)
+    setMessage({ type: 'success', text: `Switched to ${newTheme === 'light' ? 'Light' : 'Dark'} theme` })
+    setTimeout(() => setMessage(null), 2000)
+  }
+
+  const handleClearData = () => {
+    setConfirmEmail('')
+    setShowClearModal(true)
+  }
+
+  const handleConfirmDelete = async () => {
+    if (!user || !userId) return
+
+    const userEmail = user.email || ''
+    if (confirmEmail.trim().toLowerCase() !== userEmail.toLowerCase()) {
+      setMessage({ type: 'error', text: 'Email does not match. Please try again.' })
+      return
+    }
+
+    setDeleting(true)
     setMessage(null)
 
     try {
       const token = await user.getIdToken()
-      await updateUserProfile(userId, { theme: newTheme }, token)
-      setTheme(newTheme)
-      setMessage({ type: 'success', text: 'Theme updated successfully!' })
-      setTimeout(() => setMessage(null), 2000)
-    } catch (error) {
-      const errorMessage = error instanceof Error ? error.message : 'Failed to update theme'
-      setMessage({ type: 'error', text: errorMessage })
-    } finally {
-      setSaving(false)
-    }
-  }
 
-  const handleClearData = () => {
-    if (window.confirm('Are you sure you want to clear all local data? This action cannot be undone.')) {
-      // TODO: Implement clear local data
-      console.log('Clearing local data...')
+      // Delete user and all entries from backend
+      await deleteUserApi(userId, token)
+
+      // Clear all local crypto data
+      clearDeviceKey()
+      await clearEncryptedSecretKey()
+      localStorage.removeItem('gj-kdf-salt')
+      localStorage.removeItem('gj-theme')
+
+      setShowClearModal(false)
+
+      // Sign out (clears auth state)
+      await signOut()
+    } catch (error) {
+      const errorMessage = error instanceof Error ? error.message : 'Failed to delete account'
+      setMessage({ type: 'error', text: errorMessage })
+      setDeleting(false)
     }
   }
 
@@ -71,17 +108,13 @@ export default function SettingsPage() {
         {/* Profile Section */}
         <div className="settings-profile">
           <div className="settings-avatar">
-            {photoURL ? (
-              <img src={photoURL} alt={displayName} className="settings-avatar-img" />
-            ) : (
-              <div className="settings-avatar-placeholder">
-                {displayName.charAt(0).toUpperCase()}
-              </div>
-            )}
+            <div className="settings-avatar-placeholder" style={{ fontSize: '1.75rem', background: 'linear-gradient(135deg, #86efac 0%, #22c55e 100%)' }}>
+              🍀
+            </div>
           </div>
           <div className="settings-profile-info">
             <h2 className="settings-profile-name">{displayName}</h2>
-            <span className="settings-profile-badge">PRO MEMBER</span>
+            {/* <span className="settings-profile-badge">PRO MEMBER</span> */}
           </div>
         </div>
 
@@ -89,7 +122,8 @@ export default function SettingsPage() {
         <section className="settings-section">
           <h3 className="settings-section-title">PRIVACY & SECURITY</h3>
           <div className="settings-card">
-            <div className="settings-item">
+            {/* Passcode Lock — disabled for now, toggle is non-functional */}
+            <div className="settings-item" style={{ opacity: 0.5 }}>
               <div className="settings-item-icon settings-item-icon-green">
                 <svg width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
                   <rect x="3" y="11" width="18" height="11" rx="2" ry="2"></rect>
@@ -98,18 +132,21 @@ export default function SettingsPage() {
               </div>
               <div className="settings-item-content">
                 <h4 className="settings-item-title">Passcode Lock</h4>
-                <p className="settings-item-subtitle">Secure your entries</p>
+                <p className="settings-item-subtitle">Coming soon</p>
               </div>
               <label className="settings-toggle">
                 <input
                   type="checkbox"
-                  checked={passcodeEnabled}
-                  onChange={(e) => setPasscodeEnabled(e.target.checked)}
+                  checked={false}
+                  disabled
+                  readOnly
                 />
-                <span className="settings-toggle-slider"></span>
+                <span className="settings-toggle-slider" style={{ cursor: 'not-allowed' }}></span>
               </label>
             </div>
 
+            {/* Face ID — commented out for future use */}
+            {/*
             <div className="settings-divider"></div>
 
             <div className="settings-item">
@@ -136,6 +173,7 @@ export default function SettingsPage() {
                 <span className="settings-toggle-slider"></span>
               </label>
             </div>
+            */}
           </div>
         </section>
 
@@ -143,6 +181,8 @@ export default function SettingsPage() {
         <section className="settings-section">
           <h3 className="settings-section-title">DATA & LOOK</h3>
           <div className="settings-card">
+            {/* Export Journal — commented out for future use */}
+            {/*
             <button type="button" className="settings-item settings-item-button">
               <div className="settings-item-icon settings-item-icon-orange">
                 <svg width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
@@ -161,6 +201,7 @@ export default function SettingsPage() {
             </button>
 
             <div className="settings-divider"></div>
+            */}
 
             <div className="settings-item">
               <div className="settings-item-icon settings-item-icon-blue">
@@ -174,24 +215,20 @@ export default function SettingsPage() {
               </div>
               <div className="settings-item-content">
                 <h4 className="settings-item-title">Theme</h4>
-                <p className="settings-item-subtitle">Currently: {theme === 'light' ? 'Warm Beige' : 'Dark'}</p>
+                <p className="settings-item-subtitle">Currently: {theme === 'light' ? 'Light' : 'Dark'}</p>
               </div>
               <div className="settings-theme-colors">
                 <button
                   type="button"
                   onClick={() => handleThemeChange('light')}
-                  className="settings-theme-dot settings-theme-dot-beige"
-                  style={{ opacity: theme === 'light' ? 1 : 0.5 }}
+                  className={`settings-theme-dot settings-theme-dot-beige${theme === 'light' ? ' settings-theme-dot-active' : ''}`}
                   title="Light theme"
-                  disabled={saving}
                 ></button>
                 <button
                   type="button"
                   onClick={() => handleThemeChange('dark')}
-                  className="settings-theme-dot settings-theme-dot-dark"
-                  style={{ opacity: theme === 'dark' ? 1 : 0.5 }}
+                  className={`settings-theme-dot settings-theme-dot-dark${theme === 'dark' ? ' settings-theme-dot-active' : ''}`}
                   title="Dark theme"
-                  disabled={saving}
                 ></button>
               </div>
             </div>
@@ -213,8 +250,8 @@ export default function SettingsPage() {
         )}
 
         {/* Clear Data */}
-        <button type="button" className="settings-clear-btn" onClick={handleClearData} disabled>
-          <span>Clear Local Data</span>
+        <button type="button" className="settings-clear-btn" onClick={handleClearData}>
+          <span>Clear All Data</span>
           <svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
             <polyline points="3 6 5 6 21 6"></polyline>
             <path d="M19 6v14a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2V6m3 0V4a2 2 0 0 1 2-2h4a2 2 0 0 1 2 2v2"></path>
@@ -230,6 +267,49 @@ export default function SettingsPage() {
         <p className="settings-version">VERSION 1.0.2</p>
       </main>
 
+      {/* Clear Data Confirmation Modal */}
+      {showClearModal && (
+        <div className="confirm-modal-overlay" onClick={() => !deleting && setShowClearModal(false)}>
+          <div className="confirm-modal" onClick={(e) => e.stopPropagation()}>
+            <div className="confirm-modal-icon">⚠️</div>
+            <h3 className="confirm-modal-title">Delete All Data?</h3>
+            <p className="confirm-modal-desc">
+              This will permanently delete your account, all journal entries, and local encryption keys. This action <strong>cannot be undone</strong>.
+            </p>
+            <p className="confirm-modal-label">
+              Type your email to confirm:
+            </p>
+            <input
+              type="email"
+              className="confirm-modal-input"
+              placeholder={user?.email || 'your@email.com'}
+              value={confirmEmail}
+              onChange={(e) => setConfirmEmail(e.target.value)}
+              disabled={deleting}
+              autoFocus
+            />
+            <div className="confirm-modal-actions">
+              <button
+                type="button"
+                className="confirm-modal-cancel"
+                onClick={() => setShowClearModal(false)}
+                disabled={deleting}
+              >
+                Cancel
+              </button>
+              <button
+                type="button"
+                className="confirm-modal-delete"
+                onClick={handleConfirmDelete}
+                disabled={deleting || !confirmEmail.trim()}
+              >
+                {deleting ? 'Deleting…' : 'Delete Everything'}
+              </button>
+            </div>
+          </div>
+        </div>
+      )}
+
       <BottomNav />
     </div>
   )