diff --git a/web/desktop/chat/chat.css b/web/desktop/chat/chat.css
index 715310ed..e3e1d1cd 100644
--- a/web/desktop/chat/chat.css
+++ b/web/desktop/chat/chat.css
@@ -1,554 +1,147 @@
-@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500&display=swap");
-:root {
-    --bg: #ffffff;
-    --fg: #000000;
-    --border: #e0e0e0;
-    --accent: #0066ff;
-    --glass: rgba(0, 0, 0, 0.02);
-    --shadow: rgba(0, 0, 0, 0.05);
-    --logo-url: url("https://pragmatismo.com.br/icons/general-bots.svg");
-    --gradient-1: linear-gradient(
-        135deg,
-        rgba(0, 102, 255, 0.05) 0%,
-        rgba(0, 102, 255, 0) 100%
-    );
-    --gradient-2: linear-gradient(
-        45deg,
-        rgba(0, 0, 0, 0.02) 0%,
-        rgba(0, 0, 0, 0) 100%
-    );
-}
-[data-theme="dark"] {
-    --bg: #1a1a1a;
-    --fg: #ffffff;
-    --border: #333333;
-    --accent: #ffffff;
-    --glass: rgba(255, 255, 255, 0.05);
-    --shadow: rgba(0, 0, 0, 0.5);
-    --gradient-1: linear-gradient(
-        135deg,
-        rgba(255, 255, 255, 0.08) 0%,
-        rgba(255, 255, 255, 0) 100%
-    );
-    --gradient-2: linear-gradient(
-        45deg,
-        rgba(255, 255, 255, 0.03) 0%,
-        rgba(255, 255, 255, 0) 100%
-    );
-}
-* {
-    margin: 0;
-    padding: 0;
-    box-sizing: border-box;
-}
-body {
-    font-family: "Inter", sans-serif;
-    background: var(--bg);
-    color: var(--fg);
-    overflow: hidden;
-    transition:
-        background 0.3s,
-        color 0.3s;
-    display: flex;
-    flex-direction: column;
-    height: 100vh;
-    position: relative;
-}
-body::before {
-    content: "";
-    position: fixed;
-    inset: 0;
-    background: var(--gradient-1);
-    pointer-events: none;
-    z-index: 0;
-}
-.float-menu {
-    position: fixed;
-    left: 20px;
-    top: 20px;
-    display: flex;
-    flex-direction: column;
-    gap: 8px;
-    z-index: 1000;
-}
-.float-logo {
-    width: 40px;
-    height: 40px;
-    background: var(--logo-url) center/contain no-repeat;
-    filter: var(--logo-filter, none);
-    border-radius: 50%;
-    cursor: pointer;
-    transition: all 0.3s;
-    border: 1px solid var(--border);
-    backdrop-filter: blur(10px);
-}
-[data-theme="dark"] .float-logo {
-}
-.float-logo:hover {
-    transform: scale(1.1) rotate(5deg);
-}
-.menu-button {
-    width: 40px;
-    height: 40px;
-    border-radius: 50%;
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    cursor: pointer;
-    transition: all 0.3s;
-    background: var(--bg);
-    border: 1px solid var(--border);
-    font-size: 16px;
-    color: var(--fg);
-    backdrop-filter: blur(10px);
-}
-.menu-button:hover {
-    transform: scale(1.1) rotate(-5deg);
-    background: var(--fg);
-    color: var(--bg);
-}
-.sidebar {
-    position: fixed;
-    left: -320px;
-    top: 0;
-    width: 320px;
-    height: 100vh;
-    background: var(--bg);
-    border-right: 1px solid var(--border);
-    transition: left 0.4s cubic-bezier(0.4, 0, 0.2, 1);
-    z-index: 999;
-    overflow-y: auto;
-    padding: 20px;
-    backdrop-filter: blur(20px);
-    box-shadow: 4px 0 20px var(--shadow);
-}
-.sidebar.open {
-    left: 0;
-}
-.sidebar-header {
-    display: flex;
-    align-items: center;
-    gap: 12px;
-    margin-bottom: 30px;
-    padding-top: 10px;
-}
-.sidebar-logo {
-    width: 32px;
-    height: 32px;
-    background: var(--logo-url) center/contain no-repeat;
-    filter: var(--logo-filter, none);
-}
-[data-theme="dark"] .sidebar-logo {
-}
-.sidebar-title {
-    font-size: 16px;
-    font-weight: 500;
-}
-.sidebar-button {
-    width: 100%;
-    padding: 12px 16px;
-    border-radius: 12px;
-    cursor: pointer;
-    transition: all 0.3s;
-    font-weight: 500;
-    font-size: 14px;
-    margin-bottom: 8px;
-    background: var(--glass);
-    border: 1px solid var(--border);
-    color: var(--fg);
-    text-align: left;
-}
-.sidebar-button:hover {
-    background: var(--fg);
-    color: var(--bg);
-    transform: translateX(4px) scale(1.02);
-}
-.history-section {
-    margin-top: 20px;
-}
-.history-title {
-    font-size: 12px;
-    opacity: 0.5;
-    margin-bottom: 12px;
-    text-transform: uppercase;
-    letter-spacing: 0.5px;
-}
-.history-item {
-    padding: 10px 14px;
-    margin-bottom: 6px;
-    border-radius: 10px;
-    cursor: pointer;
-    transition: all 0.3s;
-    font-size: 13px;
-    border: 1px solid transparent;
-}
-.history-item:hover {
-    background: var(--fg);
-    color: var(--bg);
-    transform: translateX(4px) scale(1.02);
-}
+/* Chat Module - Uses theme variables from app.css */
+
 .chat-layout {
     display: flex;
     flex-direction: column;
     height: 100vh;
     width: 100%;
     position: relative;
+    background: var(--primary-bg);
 }
+
+/* Messages Container */
 #messages {
     position: fixed;
-    top: 0;
+    top: var(--header-height);
     left: 50%;
     transform: translateX(-50%);
-    bottom: 75px;
+    bottom: 90px;
     overflow-y: auto;
     overflow-x: hidden;
-    padding: 80px 20px 40px;
-    max-width: 680px;
+    padding: 40px 20px;
+    max-width: 800px;
     width: 100%;
     z-index: 1;
     scroll-behavior: smooth;
     -webkit-overflow-scrolling: touch;
-    height: calc(100vh - 75px);
 }
+
+/* Message Container */
 .message-container {
     margin-bottom: 24px;
-    opacity: 0;
-    transform: translateY(10px);
+    opacity: 1;
+    transform: translateY(0);
+    animation: fadeInUp 0.3s ease-out;
 }
+
+@keyframes fadeInUp {
+    from {
+        opacity: 0;
+        transform: translateY(10px);
+    }
+    to {
+        opacity: 1;
+        transform: translateY(0);
+    }
+}
+
+/* User Message */
 .user-message {
     display: flex;
     justify-content: flex-end;
     margin-bottom: 8px;
 }
+
 .user-message-content {
-    background: var(--fg);
-    color: var(--bg);
+    background: var(--user-message-bg);
+    color: var(--user-message-fg);
     border-radius: 18px;
     padding: 12px 18px;
     max-width: 80%;
     font-size: 14px;
     line-height: 1.5;
-    box-shadow: 0 2px 8px var(--shadow);
-    position: relative;
-    overflow: hidden;
-}
-.user-message-content::before {
-    content: "";
-    position: absolute;
-    inset: 0;
-    background: var(--gradient-2);
-    opacity: 0.3;
-    pointer-events: none;
+    box-shadow: var(--shadow-sm);
+    word-wrap: break-word;
 }
+
+/* Assistant Message */
 .assistant-message {
     display: flex;
-    gap: 8px;
+    gap: 12px;
     align-items: flex-start;
 }
+
 .assistant-avatar {
-    width: 24px;
-    height: 24px;
+    width: 32px;
+    height: 32px;
     border-radius: 50%;
-    background: var(--logo-url) center/contain no-repeat;
+    background: url("https://pragmatismo.com.br/icons/general-bots.svg")
+        center/contain no-repeat;
     flex-shrink: 0;
     margin-top: 2px;
-    filter: var(--logo-filter, none);
-}
-[data-theme="dark"] .assistant-avatar {
 }
+
 .assistant-message-content {
     flex: 1;
     font-size: 14px;
     line-height: 1.7;
-    background: var(--glass);
+    background: var(--bot-message-bg);
+    color: var(--bot-message-fg);
     border-radius: 18px;
     padding: 12px 18px;
-    border: 1px solid var(--border);
-    box-shadow: 0 2px 8px var(--shadow);
-    position: relative;
-    overflow: hidden;
-}
-.assistant-message-content::before {
-    content: "";
-    position: absolute;
-    inset: 0;
-    background: var(--gradient-1);
-    opacity: 0.5;
-    pointer-events: none;
-}
-.thinking-indicator {
-    display: flex;
-    gap: 8px;
-    align-items: center;
-    font-size: 13px;
-    opacity: 0.4;
-}
-.typing-dots {
-    display: flex;
-    gap: 4px;
-}
-.typing-dot {
-    width: 4px;
-    height: 4px;
-    background: var(--fg);
-    border-radius: 50%;
-    animation: bounce 1.4s infinite;
-}
-.typing-dot:nth-child(1) {
-    animation-delay: -0.32s;
-}
-.typing-dot:nth-child(2) {
-    animation-delay: -0.16s;
-}
-@keyframes bounce {
-    0%,
-    80%,
-    100% {
-        transform: scale(0);
-        opacity: 0.3;
-    }
-    40% {
-        transform: scale(1);
-        opacity: 1;
-    }
-}
-footer {
-    position: fixed;
-    bottom: 0;
-    left: 0;
-    right: 0;
-    background: var(--bg);
-    border-top: 1px solid var(--border);
-    padding: 12px;
-    z-index: 100;
-    transition: all 0.3s;
-    backdrop-filter: blur(20px);
-    height: 75px;
-}
-.suggestions-container {
-    display: flex;
-    flex-wrap: wrap;
-    gap: 4px;
-    margin-bottom: 8px;
-    justify-content: center;
-    max-width: 680px;
-    margin: 0 auto 8px;
-}
-.suggestion-button {
-    padding: 6px 12px;
-    border-radius: 12px;
-    cursor: pointer;
-    font-size: 11px;
-    font-weight: 400;
-    transition: all 0.2s;
-    background: var(--glass);
-    border: 1px solid var(--border);
-    color: var(--fg);
-}
-.suggestion-button:hover {
-    background: var(--fg);
-    color: var(--bg);
-    transform: scale(1.05);
-}
-.input-container {
-    display: flex;
-    gap: 6px;
-    max-width: 680px;
-    margin: 0 auto;
-    align-items: center;
-}
-#messageInput {
-    flex: 1;
-    border-radius: 20px;
-    padding: 10px 16px;
-    font-size: 14px;
-    font-family: "Inter", sans-serif;
-    outline: none;
-    transition: all 0.3s;
-    background: var(--glass);
-    border: 1px solid var(--border);
-    color: var(--fg);
-    backdrop-filter: blur(10px);
-}
-#messageInput:focus {
-    border-color: var(--accent);
-    box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.1);
-}
-#messageInput::placeholder {
-    opacity: 0.3;
-}
-#sendBtn,
-#voiceBtn {
-    width: 36px;
-    height: 36px;
-    border-radius: 18px;
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    cursor: pointer;
-    transition: all 0.2s;
-    border: none;
-    background: var(--fg);
-    color: var(--bg);
-    font-size: 16px;
-    flex-shrink: 0;
-}
-#sendBtn:hover,
-#voiceBtn:hover {
-    transform: scale(1.08) rotate(5deg);
-}
-#sendBtn:active,
-#voiceBtn:active {
-    transform: scale(0.95);
-}
-#voiceBtn.recording {
-    animation: pulse 1.5s infinite;
-}
-@keyframes pulse {
-    0%,
-    100% {
-        opacity: 1;
-        transform: scale(1);
-    }
-    50% {
-        opacity: 0.6;
-        transform: scale(1.1);
-    }
-}
-.flash-overlay {
-    position: fixed;
-    inset: 0;
-    background: var(--fg);
-    opacity: 0;
-    pointer-events: none;
-    z-index: 9999;
-}
-.scroll-to-bottom {
-    position: fixed;
-    bottom: 85px;
-    right: 20px;
-    width: 40px;
-    height: 40px;
-    background: var(--fg);
-    border: 1px solid var(--border);
-    border-radius: 50%;
-    color: var(--bg);
-    font-size: 18px;
-    cursor: pointer;
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    transition: all 0.3s;
-    z-index: 90;
-    opacity: 0;
-    pointer-events: none;
-    box-shadow: 0 2px 8px var(--shadow);
-}
-.scroll-to-bottom.visible {
-    opacity: 1;
-    pointer-events: auto;
-}
-.scroll-to-bottom:hover {
-    transform: scale(1.15);
-}
-.warning-message {
-    border-radius: 12px;
-    padding: 12px 16px;
-    margin-bottom: 18px;
-    opacity: 0.6;
-    background: var(--glass);
-    border: 1px solid var(--border);
-    font-size: 13px;
-}
-.continue-button {
-    display: inline-block;
-    border-radius: 10px;
-    padding: 8px 16px;
-    font-weight: 500;
-    cursor: pointer;
-    margin-top: 10px;
-    transition: all 0.3s;
-    font-size: 13px;
-    background: var(--glass);
-    border: 1px solid var(--border);
-}
-.continue-button:hover {
-    background: var(--fg);
-    color: var(--bg);
-    transform: translateY(-2px);
-}
-.connection-status {
-    position: fixed;
-    top: 20px;
-    right: 20px;
-    width: 8px;
-    height: 8px;
-    border-radius: 50%;
-    z-index: 1000;
-    transition: all 0.3s;
-}
-.connection-status.connecting {
-    background: var(--fg);
-    opacity: 0.3;
-    animation: ping 1.5s infinite;
-}
-.connection-status.connected {
-    background: var(--accent);
-    opacity: 0.8;
-}
-.connection-status.disconnected {
-    background: var(--fg);
-    opacity: 0.2;
-}
-@keyframes ping {
-    0%,
-    100% {
-        opacity: 0.3;
-        transform: scale(0.8);
-    }
-    50% {
-        opacity: 0.8;
-        transform: scale(1.2);
-    }
+    border: 1px solid var(--border-color);
+    box-shadow: var(--shadow-sm);
+    max-width: 80%;
+    word-wrap: break-word;
 }
+
+/* Markdown Content */
 .markdown-content p {
     margin-bottom: 12px;
     line-height: 1.7;
 }
+
 .markdown-content ul,
 .markdown-content ol {
     margin-bottom: 12px;
     padding-left: 20px;
 }
+
 .markdown-content li {
     margin-bottom: 4px;
 }
+
 .markdown-content code {
-    background: var(--glass);
+    background: rgba(0, 0, 0, 0.05);
     padding: 2px 6px;
     border-radius: 4px;
-    font-family: monospace;
+    font-family: "Courier New", monospace;
     font-size: 13px;
 }
+
 .markdown-content pre {
     border-radius: 8px;
     padding: 12px;
     overflow-x: auto;
     margin-bottom: 12px;
-    background: var(--glass);
-    border: 1px solid var(--border);
+    background: rgba(0, 0, 0, 0.03);
+    border: 1px solid var(--border-color);
 }
+
 .markdown-content pre code {
     background: none;
     padding: 0;
 }
+
 .markdown-content h1,
 .markdown-content h2,
 .markdown-content h3 {
     margin-top: 16px;
     margin-bottom: 8px;
     font-weight: 600;
+    color: var(--text-primary);
 }
+
 .markdown-content h1 {
     font-size: 20px;
 }
@@ -558,51 +151,330 @@ footer {
 .markdown-content h3 {
     font-size: 16px;
 }
-.markdown-content table {
-    width: 100%;
-    border-collapse: collapse;
-    margin-bottom: 14px;
-}
-.markdown-content table th,
-.markdown-content table td {
-    padding: 8px;
-    text-align: left;
-    border: 1px solid var(--border);
-}
-.markdown-content table th {
-    font-weight: 600;
-    background: var(--glass);
-}
-.markdown-content blockquote {
-    border-left: 2px solid var(--accent);
-    padding-left: 14px;
-    margin: 12px 0;
-    opacity: 0.7;
-    font-style: italic;
-}
+
 .markdown-content a {
-    color: var(--accent);
+    color: var(--accent-color);
     text-decoration: none;
-    transition: all 0.3s;
+    transition: opacity var(--transition-fast);
 }
+
 .markdown-content a:hover {
     opacity: 0.7;
     text-decoration: underline;
 }
-/* Claude-style scrollbar - thin, subtle, always visible but more prominent on hover */
-#messages {
-    /* Firefox scrollbar */
-    scrollbar-width: thin;
-    scrollbar-color: rgba(128, 128, 128, 0.3) transparent;
+
+/* Thinking Indicator */
+.thinking-indicator {
+    display: flex;
+    gap: 6px;
+    align-items: center;
+    padding: 4px 0;
 }
 
-[data-theme="dark"] #messages {
-    scrollbar-color: rgba(255, 255, 255, 0.2) transparent;
+.thinking-dot {
+    width: 8px;
+    height: 8px;
+    background: var(--text-tertiary);
+    border-radius: 50%;
+    animation: bounce 1.4s infinite ease-in-out;
 }
 
-/* Webkit (Chrome, Safari, Edge) scrollbar */
+.thinking-dot:nth-child(1) {
+    animation-delay: -0.32s;
+}
+.thinking-dot:nth-child(2) {
+    animation-delay: -0.16s;
+}
+.thinking-dot:nth-child(3) {
+    animation-delay: 0s;
+}
+
+@keyframes bounce {
+    0%,
+    80%,
+    100% {
+        transform: scale(0.8);
+        opacity: 0.3;
+    }
+    40% {
+        transform: scale(1);
+        opacity: 1;
+    }
+}
+
+/* Footer */
+footer {
+    position: fixed;
+    bottom: 0;
+    left: 0;
+    right: 0;
+    background: var(--header-bg);
+    backdrop-filter: blur(20px) saturate(180%);
+    -webkit-backdrop-filter: blur(20px) saturate(180%);
+    border-top: 1px solid var(--border-color);
+    padding: 16px;
+    z-index: 100;
+    box-shadow: var(--shadow-md);
+}
+
+/* Suggestions */
+.suggestions-container {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 8px;
+    margin-bottom: 12px;
+    justify-content: center;
+    max-width: 800px;
+    margin-left: auto;
+    margin-right: auto;
+}
+
+.suggestion-button {
+    padding: 8px 16px;
+    border-radius: var(--radius-full);
+    cursor: pointer;
+    font-size: 13px;
+    font-weight: 500;
+    transition: all var(--transition-fast);
+    background: var(--glass-bg);
+    border: 1px solid var(--border-color);
+    color: var(--text-primary);
+}
+
+.suggestion-button:hover {
+    background: var(--bg-hover);
+    border-color: var(--accent-color);
+    transform: translateY(-2px);
+    box-shadow: var(--shadow-sm);
+}
+
+/* Input Container */
+.input-container {
+    display: flex;
+    gap: 8px;
+    max-width: 800px;
+    margin: 0 auto;
+    align-items: center;
+}
+
+#messageInput {
+    flex: 1;
+    border-radius: var(--radius-xl);
+    padding: 12px 20px;
+    font-size: 14px;
+    font-family: inherit;
+    outline: none;
+    transition: all var(--transition-fast);
+    background: var(--input-bg);
+    border: 2px solid var(--input-border);
+    color: var(--text-primary);
+}
+
+#messageInput:focus {
+    border-color: var(--accent-color);
+    box-shadow: 0 0 0 3px var(--accent-light);
+}
+
+#messageInput::placeholder {
+    color: var(--input-placeholder);
+}
+
+#sendBtn,
+#voiceBtn {
+    width: 44px;
+    height: 44px;
+    border-radius: 50%;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    cursor: pointer;
+    transition: all var(--transition-fast);
+    border: none;
+    font-size: 18px;
+    flex-shrink: 0;
+}
+
+#sendBtn {
+    background: var(--accent-color);
+    color: white;
+    box-shadow: var(--shadow-md);
+}
+
+#sendBtn:hover {
+    background: var(--accent-hover);
+    transform: translateY(-2px);
+    box-shadow: var(--shadow-lg);
+}
+
+#sendBtn:active {
+    transform: translateY(0);
+}
+
+#voiceBtn {
+    background: var(--glass-bg);
+    border: 1px solid var(--border-color);
+    color: var(--text-primary);
+}
+
+#voiceBtn:hover {
+    background: var(--bg-hover);
+    border-color: var(--accent-color);
+}
+
+#voiceBtn.recording {
+    background: var(--error-color);
+    color: white;
+    animation: pulse 1.5s infinite;
+}
+
+@keyframes pulse {
+    0%,
+    100% {
+        opacity: 1;
+        transform: scale(1);
+    }
+    50% {
+        opacity: 0.7;
+        transform: scale(1.05);
+    }
+}
+
+/* Scroll to Bottom Button */
+.scroll-to-bottom {
+    position: fixed;
+    bottom: 110px;
+    right: 24px;
+    width: 40px;
+    height: 40px;
+    background: var(--accent-color);
+    color: white;
+    border: none;
+    border-radius: 50%;
+    font-size: 20px;
+    cursor: pointer;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    transition: all var(--transition-fast);
+    z-index: 90;
+    opacity: 0;
+    pointer-events: none;
+    box-shadow: var(--shadow-lg);
+}
+
+.scroll-to-bottom.visible {
+    opacity: 1;
+    pointer-events: auto;
+}
+
+.scroll-to-bottom:hover {
+    transform: scale(1.1);
+    box-shadow: var(--shadow-xl);
+}
+
+/* Connection Status */
+.connection-status {
+    position: fixed;
+    top: calc(var(--header-height) + 16px);
+    right: 24px;
+    padding: 6px 12px;
+    border-radius: var(--radius-full);
+    font-size: 11px;
+    font-weight: 600;
+    display: flex;
+    align-items: center;
+    gap: 6px;
+    backdrop-filter: blur(20px);
+    -webkit-backdrop-filter: blur(20px);
+    box-shadow: var(--shadow-md);
+    z-index: 1000;
+    transition: all var(--transition-fast);
+}
+
+.connection-status::before {
+    content: "";
+    width: 6px;
+    height: 6px;
+    border-radius: 50%;
+}
+
+.connection-status.connected {
+    background: rgba(16, 185, 129, 0.15);
+    border: 1px solid var(--success-color);
+    color: var(--success-color);
+}
+
+.connection-status.connected::before {
+    background: var(--success-color);
+}
+
+.connection-status.connecting {
+    background: rgba(245, 158, 11, 0.15);
+    border: 1px solid var(--warning-color);
+    color: var(--warning-color);
+}
+
+.connection-status.connecting::before {
+    background: var(--warning-color);
+    animation: pulse 2s infinite;
+}
+
+.connection-status.disconnected {
+    background: rgba(239, 68, 68, 0.15);
+    border: 1px solid var(--error-color);
+    color: var(--error-color);
+}
+
+.connection-status.disconnected::before {
+    background: var(--error-color);
+}
+
+/* Flash Overlay */
+.flash-overlay {
+    position: fixed;
+    inset: 0;
+    background: var(--accent-color);
+    opacity: 0;
+    pointer-events: none;
+    z-index: 9999;
+    transition: opacity 0.1s;
+}
+
+/* Warning Message */
+.warning-message {
+    border-radius: 12px;
+    padding: 12px 16px;
+    margin-bottom: 18px;
+    background: rgba(245, 158, 11, 0.1);
+    border: 1px solid var(--warning-color);
+    color: var(--warning-color);
+    font-size: 13px;
+}
+
+/* Continue Button */
+.continue-button {
+    display: inline-block;
+    border-radius: var(--radius-lg);
+    padding: 8px 16px;
+    font-weight: 500;
+    cursor: pointer;
+    margin-top: 10px;
+    transition: all var(--transition-fast);
+    font-size: 13px;
+    background: var(--glass-bg);
+    border: 1px solid var(--border-color);
+    color: var(--text-primary);
+}
+
+.continue-button:hover {
+    background: var(--bg-hover);
+    border-color: var(--accent-color);
+    transform: translateY(-2px);
+}
+
+/* Scrollbar */
 #messages::-webkit-scrollbar {
-    width: 14px;
+    width: 8px;
 }
 
 #messages::-webkit-scrollbar-track {
@@ -610,89 +482,48 @@ footer {
 }
 
 #messages::-webkit-scrollbar-thumb {
-    background: rgba(128, 128, 128, 0.3);
-    border-radius: 6px;
-    border: 3px solid transparent;
-    background-clip: padding-box;
-    transition: background 0.2s;
-}
-
-#messages:hover::-webkit-scrollbar-thumb {
-    background: rgba(128, 128, 128, 0.5);
-    background-clip: padding-box;
+    background: var(--scrollbar-thumb);
+    border-radius: var(--radius-full);
 }
 
 #messages::-webkit-scrollbar-thumb:hover {
-    background: rgba(128, 128, 128, 0.7);
-    background-clip: padding-box;
+    background: var(--scrollbar-thumb-hover);
 }
 
-[data-theme="dark"] #messages::-webkit-scrollbar-thumb {
-    background: rgba(255, 255, 255, 0.2);
-    background-clip: padding-box;
-}
-
-[data-theme="dark"] #messages:hover::-webkit-scrollbar-thumb {
-    background: rgba(255, 255, 255, 0.3);
-    background-clip: padding-box;
-}
-
-[data-theme="dark"] #messages::-webkit-scrollbar-thumb:hover {
-    background: rgba(255, 255, 255, 0.4);
-    background-clip: padding-box;
-}
-
-/* Fallback for other elements */
-* {
-    scrollbar-width: thin;
-    scrollbar-color: var(--border) transparent;
-}
-
-::-webkit-scrollbar {
-    width: 10px;
-}
-
-::-webkit-scrollbar-track {
-    background: transparent;
-}
-
-::-webkit-scrollbar-thumb {
-    background: var(--border);
-    border-radius: 5px;
-    border: 2px solid transparent;
-    background-clip: padding-box;
-}
-
-::-webkit-scrollbar-thumb:hover {
-    background: var(--fg);
-    opacity: 0.5;
-    background-clip: padding-box;
-}
+/* Responsive */
 @media (max-width: 768px) {
-    .sidebar {
-        width: 100%;
-        left: -100%;
-    }
     #messages {
-        padding: 80px 16px 40px;
-        top: 0;
-        bottom: 75px;
-        height: calc(100vh - 75px);
+        padding: 20px 16px;
+        max-width: 100%;
     }
-    .float-menu {
-        left: 12px;
-        top: 12px;
+
+    .input-container {
+        gap: 6px;
     }
-    .float-logo,
-    .menu-button {
-        width: 36px;
-        height: 36px;
+
+    #messageInput {
+        padding: 10px 16px;
         font-size: 14px;
     }
+
+    #sendBtn,
+    #voiceBtn {
+        width: 40px;
+        height: 40px;
+        font-size: 16px;
+    }
+
     .scroll-to-bottom {
+        bottom: 100px;
+        right: 16px;
         width: 36px;
         height: 36px;
-        bottom: 85px;
-        right: 12px;
+    }
+
+    .connection-status {
+        top: calc(var(--header-height) + 8px);
+        right: 16px;
+        font-size: 10px;
+        padding: 4px 10px;
     }
 }
diff --git a/web/desktop/chat/chat.html b/web/desktop/chat/chat.html
index 43899e9c..a5e91bb8 100644
--- a/web/desktop/chat/chat.html
+++ b/web/desktop/chat/chat.html
@@ -16,4 +16,5 @@
         </div>
     </footer>
     <button class="scroll-to-bottom" id="scrollToBottom">↓</button>
+    <div class="flash-overlay" id="flashOverlay"></div>
 </div>
diff --git a/web/desktop/chat/chat.js b/web/desktop/chat/chat.js
index 7a059c07..f7576b4d 100644
--- a/web/desktop/chat/chat.js
+++ b/web/desktop/chat/chat.js
@@ -187,11 +187,15 @@ function chatApp() {
         connectionStatus = document.getElementById("connectionStatus");
         flashOverlay = document.getElementById("flashOverlay");
         suggestionsContainer = document.getElementById("suggestions");
-        floatLogo = document.getElementById("floatLogo");
-        sidebar = document.getElementById("sidebar");
-        themeBtn = document.getElementById("themeBtn");
         scrollToBottomBtn = document.getElementById("scrollToBottom");
-        sidebarTitle = document.getElementById("sidebarTitle");
+
+        console.log("Chat DOM elements initialized:", {
+          messagesDiv: !!messagesDiv,
+          messageInputEl: !!messageInputEl,
+          sendBtn: !!sendBtn,
+          voiceBtn: !!voiceBtn,
+          connectionStatus: !!connectionStatus,
+        });
 
         // Theme initialization and focus
         const savedTheme = localStorage.getItem("gb-theme") || "auto";
@@ -231,10 +235,15 @@ function chatApp() {
           });
         }
 
-        sendBtn.onclick = () => this.sendMessage();
-        messageInputEl.addEventListener("keypress", (e) => {
-          if (e.key === "Enter") this.sendMessage();
-        });
+        if (sendBtn) {
+          sendBtn.onclick = () => this.sendMessage();
+        }
+
+        if (messageInputEl) {
+          messageInputEl.addEventListener("keypress", (e) => {
+            if (e.key === "Enter") this.sendMessage();
+          });
+        }
 
         // Don't auto-reconnect on focus in browser to prevent multiple connections
         // Tauri doesn't fire focus events the same way
@@ -263,7 +272,14 @@ function chatApp() {
     },
 
     updateConnectionStatus(s) {
+      if (!connectionStatus) return;
       connectionStatus.className = `connection-status ${s}`;
+      const statusText = {
+        connected: "Connected",
+        connecting: "Connecting...",
+        disconnected: "Disconnected",
+      };
+      connectionStatus.innerHTML = `<span>${statusText[s] || s}</span>`;
     },
 
     getWebSocketUrl() {
@@ -513,9 +529,6 @@ function chatApp() {
           if (d.color2) themeColor2 = d.color2;
           if (d.logo_url) customLogoUrl = d.logo_url;
           if (d.title) document.title = d.title;
-          if (d.logo_text) {
-            sidebarTitle.textContent = d.logo_text;
-          }
           this.applyTheme();
           break;
       }
@@ -526,40 +539,28 @@ function chatApp() {
       const t = document.createElement("div");
       t.id = "thinking-indicator";
       t.className = "message-container";
-      t.innerHTML = `<div class="assistant-message"><div class="assistant-avatar"></div><div class="thinking-indicator"><div class="typing-dots"><div class="typing-dot"></div><div class="typing-dot"></div><div class="typing-dot"></div></div></div></div>`;
-      messagesDiv.appendChild(t);
-      gsap.to(t, { opacity: 1, y: 0, duration: 0.3, ease: "power2.out" });
-      if (!isUserScrolling) {
-        this.scrollToBottom();
+      t.innerHTML = `<div class="assistant-message"><div class="assistant-avatar"></div><div class="thinking-indicator"><div class="thinking-dot"></div><div class="thinking-dot"></div><div class="thinking-dot"></div></div></div>`;
+      if (messagesDiv) {
+        messagesDiv.appendChild(t);
+        if (!isUserScrolling) {
+          this.scrollToBottom();
+        }
       }
+      isThinking = true;
+
       thinkingTimeout = setTimeout(() => {
         if (isThinking) {
           this.hideThinkingIndicator();
-          this.showWarning(
-            "O servidor pode estar ocupado. A resposta está demorando demais.",
-          );
+          this.showWarning("A resposta está demorando mais que o esperado...");
         }
-      }, 60000);
-      isThinking = true;
+      }, 30000);
     },
 
     hideThinkingIndicator() {
       if (!isThinking) return;
       const t = document.getElementById("thinking-indicator");
-      if (t) {
-        gsap.to(t, {
-          opacity: 0,
-          duration: 0.2,
-          onComplete: () => {
-            if (t.parentNode) {
-              t.remove();
-            }
-          },
-        });
-      }
-      if (thinkingTimeout) {
-        clearTimeout(thinkingTimeout);
-        thinkingTimeout = null;
+      if (t && t.parentNode) {
+        t.remove();
       }
       isThinking = false;
     },
@@ -568,30 +569,28 @@ function chatApp() {
       const w = document.createElement("div");
       w.className = "warning-message";
       w.innerHTML = `⚠️ ${m}`;
-      messagesDiv.appendChild(w);
-      gsap.from(w, { opacity: 0, y: 20, duration: 0.4, ease: "power2.out" });
-      if (!isUserScrolling) {
-        this.scrollToBottom();
-      }
-      setTimeout(() => {
-        if (w.parentNode) {
-          gsap.to(w, {
-            opacity: 0,
-            duration: 0.3,
-            onComplete: () => w.remove(),
-          });
+      if (messagesDiv) {
+        messagesDiv.appendChild(w);
+        if (!isUserScrolling) {
+          this.scrollToBottom();
         }
-      }, 5000);
+        setTimeout(() => {
+          if (w.parentNode) {
+            w.remove();
+          }
+        }, 5000);
+      }
     },
 
     showContinueButton() {
       const c = document.createElement("div");
       c.className = "message-container";
       c.innerHTML = `<div class="assistant-message"><div class="assistant-avatar"></div><div class="assistant-message-content"><p>A conexão foi interrompida. Clique em "Continuar" para tentar recuperar a resposta.</p><button class="continue-button" onclick="this.parentElement.parentElement.parentElement.remove();">Continuar</button></div></div>`;
-      messagesDiv.appendChild(c);
-      gsap.to(c, { opacity: 1, y: 0, duration: 0.5, ease: "power2.out" });
-      if (!isUserScrolling) {
-        this.scrollToBottom();
+      if (messagesDiv) {
+        messagesDiv.appendChild(c);
+        if (!isUserScrolling) {
+          this.scrollToBottom();
+        }
       }
     },
 
@@ -629,10 +628,11 @@ function chatApp() {
       } else {
         m.innerHTML = `<div class="assistant-message"><div class="assistant-avatar"></div><div class="assistant-message-content">${content}</div></div>`;
       }
-      messagesDiv.appendChild(m);
-      gsap.to(m, { opacity: 1, y: 0, duration: 0.5, ease: "power2.out" });
-      if (!isUserScrolling) {
-        this.scrollToBottom();
+      if (messagesDiv) {
+        messagesDiv.appendChild(m);
+        if (!isUserScrolling) {
+          this.scrollToBottom();
+        }
       }
     },
 
@@ -680,9 +680,13 @@ function chatApp() {
         b.className = "suggestion-button";
         b.onclick = () => {
           this.setContext(v.context);
-          messageInputEl.value = "";
+          if (messageInputEl) {
+            messageInputEl.value = "";
+          }
         };
-        suggestionsContainer.appendChild(b);
+        if (suggestionsContainer) {
+          suggestionsContainer.appendChild(b);
+        }
       });
     },
 
diff --git a/web/desktop/css/app.css b/web/desktop/css/app.css
index eaa41db1..a67a57f9 100644
--- a/web/desktop/css/app.css
+++ b/web/desktop/css/app.css
@@ -1,17 +1,225 @@
-/* App-specific styles for General Bots Desktop */
-/* All modules (chat, drive, tasks, mail) use these unified theme variables */
+/* General Bots Desktop - Unified Theme System */
+/* This file defines the core theme variables used across ALL modules */
 
-@import url("global.css");
+@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap");
 
+/* ============================================ */
+/* DEFAULT THEME (Light Mode Base)             */
+/* ============================================ */
+:root {
+    /* Core Colors */
+    --primary-bg: #ffffff;
+    --primary-fg: #0f172a;
+    --secondary-bg: #f8fafc;
+    --secondary-fg: #475569;
+
+    /* Glass Morphism */
+    --glass-bg: rgba(255, 255, 255, 0.7);
+    --glass-border: rgba(226, 232, 240, 0.8);
+    --glass-shadow: rgba(0, 0, 0, 0.05);
+
+    /* Text Colors */
+    --text-primary: #0f172a;
+    --text-secondary: #475569;
+    --text-tertiary: #94a3b8;
+    --text-muted: #cbd5e1;
+
+    /* Accent Colors */
+    --accent-color: #3b82f6;
+    --accent-hover: #2563eb;
+    --accent-light: rgba(59, 130, 246, 0.1);
+    --accent-gradient: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
+
+    /* Border Colors */
+    --border-color: #e2e8f0;
+    --border-light: #f1f5f9;
+    --border-dark: #cbd5e1;
+
+    /* Background States */
+    --bg-hover: rgba(59, 130, 246, 0.08);
+    --bg-active: rgba(59, 130, 246, 0.15);
+    --bg-disabled: #f1f5f9;
+
+    /* Message Bubbles */
+    --user-message-bg: #3b82f6;
+    --user-message-fg: #ffffff;
+    --bot-message-bg: #f1f5f9;
+    --bot-message-fg: #0f172a;
+
+    /* Sidebar */
+    --sidebar-bg: rgba(248, 250, 252, 0.95);
+    --sidebar-border: #e2e8f0;
+    --sidebar-item-hover: rgba(59, 130, 246, 0.1);
+    --sidebar-item-active: #3b82f6;
+
+    /* Status Colors */
+    --success-color: #10b981;
+    --warning-color: #f59e0b;
+    --error-color: #ef4444;
+    --info-color: #3b82f6;
+
+    /* Shadows */
+    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
+    --shadow-md:
+        0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
+    --shadow-lg:
+        0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
+    --shadow-xl:
+        0 20px 25px -5px rgba(0, 0, 0, 0.1),
+        0 10px 10px -5px rgba(0, 0, 0, 0.04);
+
+    /* Spacing */
+    --space-xs: 4px;
+    --space-sm: 8px;
+    --space-md: 16px;
+    --space-lg: 24px;
+    --space-xl: 32px;
+    --space-2xl: 48px;
+
+    /* Border Radius */
+    --radius-sm: 4px;
+    --radius-md: 8px;
+    --radius-lg: 12px;
+    --radius-xl: 16px;
+    --radius-2xl: 24px;
+    --radius-full: 9999px;
+
+    /* Transitions */
+    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
+    --transition-smooth: 300ms cubic-bezier(0.4, 0, 0.2, 1);
+    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
+
+    /* Header */
+    --header-bg: rgba(255, 255, 255, 0.8);
+    --header-border: rgba(226, 232, 240, 0.8);
+    --header-height: 64px;
+
+    /* Input Fields */
+    --input-bg: #ffffff;
+    --input-border: #e2e8f0;
+    --input-focus-border: #3b82f6;
+    --input-placeholder: #94a3b8;
+
+    /* Scrollbar */
+    --scrollbar-track: #f1f5f9;
+    --scrollbar-thumb: #cbd5e1;
+    --scrollbar-thumb-hover: #94a3b8;
+
+    /* Z-Index Layers */
+    --z-dropdown: 1000;
+    --z-sticky: 1020;
+    --z-fixed: 1030;
+    --z-modal-backdrop: 1040;
+    --z-modal: 1050;
+    --z-popover: 1060;
+    --z-tooltip: 1070;
+}
+
+/* ============================================ */
+/* DARK MODE                                    */
+/* ============================================ */
+[data-theme="dark"],
+.dark-mode {
+    /* Core Colors */
+    --primary-bg: #0f172a;
+    --primary-fg: #f8fafc;
+    --secondary-bg: #1e293b;
+    --secondary-fg: #cbd5e1;
+
+    /* Glass Morphism */
+    --glass-bg: rgba(30, 41, 59, 0.7);
+    --glass-border: rgba(51, 65, 85, 0.8);
+    --glass-shadow: rgba(0, 0, 0, 0.3);
+
+    /* Text Colors */
+    --text-primary: #f8fafc;
+    --text-secondary: #cbd5e1;
+    --text-tertiary: #64748b;
+    --text-muted: #475569;
+
+    /* Accent Colors */
+    --accent-color: #60a5fa;
+    --accent-hover: #3b82f6;
+    --accent-light: rgba(96, 165, 250, 0.15);
+    --accent-gradient: linear-gradient(135deg, #60a5fa 0%, #a78bfa 100%);
+
+    /* Border Colors */
+    --border-color: #334155;
+    --border-light: #1e293b;
+    --border-dark: #475569;
+
+    /* Background States */
+    --bg-hover: rgba(96, 165, 250, 0.1);
+    --bg-active: rgba(96, 165, 250, 0.2);
+    --bg-disabled: #1e293b;
+
+    /* Message Bubbles */
+    --user-message-bg: #3b82f6;
+    --user-message-fg: #ffffff;
+    --bot-message-bg: #1e293b;
+    --bot-message-fg: #f8fafc;
+
+    /* Sidebar */
+    --sidebar-bg: rgba(30, 41, 59, 0.95);
+    --sidebar-border: #334155;
+    --sidebar-item-hover: rgba(96, 165, 250, 0.15);
+    --sidebar-item-active: #3b82f6;
+
+    /* Status Colors */
+    --success-color: #34d399;
+    --warning-color: #fbbf24;
+    --error-color: #f87171;
+    --info-color: #60a5fa;
+
+    /* Shadows */
+    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
+    --shadow-md:
+        0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
+    --shadow-lg:
+        0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
+    --shadow-xl:
+        0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.4);
+
+    /* Header */
+    --header-bg: rgba(30, 41, 59, 0.8);
+    --header-border: rgba(51, 65, 85, 0.8);
+
+    /* Input Fields */
+    --input-bg: #1e293b;
+    --input-border: #334155;
+    --input-focus-border: #60a5fa;
+    --input-placeholder: #64748b;
+
+    /* Scrollbar */
+    --scrollbar-track: #1e293b;
+    --scrollbar-thumb: #475569;
+    --scrollbar-thumb-hover: #64748b;
+}
+
+/* ============================================ */
+/* GLOBAL RESETS                                */
+/* ============================================ */
 * {
     margin: 0;
     padding: 0;
     box-sizing: border-box;
 }
 
+html {
+    font-size: 16px;
+    -webkit-font-smoothing: antialiased;
+    -moz-osx-font-smoothing: grayscale;
+}
+
 body {
     font-family:
-        -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu,
+        "Inter",
+        -apple-system,
+        BlinkMacSystemFont,
+        "Segoe UI",
+        Roboto,
+        Oxygen,
+        Ubuntu,
         sans-serif;
     background: var(--primary-bg);
     color: var(--primary-fg);
@@ -22,479 +230,328 @@ body {
         color var(--transition-smooth);
 }
 
-/* Main Content */
+/* ============================================ */
+/* LAYOUT STRUCTURE                             */
+/* ============================================ */
 #main-content {
     height: 100vh;
+    width: 100vw;
     overflow: hidden;
     position: relative;
 }
 
-.content-section {
-    display: none;
+.section {
     height: 100%;
-    overflow: auto;
-}
-
-.content-section.active {
-    display: block;
-}
-
-/* Panel Styles - used across all modules */
-.panel {
-    background: var(--glass-bg);
-    border: 1px solid var(--glass-border);
-    border-radius: var(--radius-lg);
-    padding: var(--space-lg);
-    box-shadow: var(--shadow-sm);
-    backdrop-filter: blur(20px);
-}
-
-.panel:hover {
-    box-shadow: var(--shadow-md);
-}
-
-/* Drive Layout */
-.drive-layout {
-    display: grid;
-    grid-template-columns: 250px 1fr 300px;
-    gap: var(--space-md);
-    padding: var(--space-lg);
-    height: 100%;
-    background: var(--primary-bg);
-}
-
-.drive-sidebar,
-.drive-details {
-    overflow-y: auto;
-    background: var(--glass-bg);
-    border: 1px solid var(--glass-border);
-    border-radius: var(--radius-lg);
-    padding: var(--space-md);
-    backdrop-filter: blur(20px);
-}
-
-.drive-main {
-    display: flex;
-    flex-direction: column;
+    width: 100%;
     overflow: hidden;
-    background: var(--glass-bg);
-    border: 1px solid var(--glass-border);
-    border-radius: var(--radius-lg);
-    backdrop-filter: blur(20px);
+    display: none;
 }
 
-.nav-item {
-    padding: 12px 16px;
+.section.active {
+    display: flex;
+}
+
+/* ============================================ */
+/* FLOATING HEADER                              */
+/* ============================================ */
+.float-header {
+    position: fixed;
+    top: 0;
+    left: 0;
+    right: 0;
+    height: var(--header-height);
+    background: var(--header-bg);
+    backdrop-filter: blur(20px) saturate(180%);
+    -webkit-backdrop-filter: blur(20px) saturate(180%);
+    border-bottom: 1px solid var(--header-border);
     display: flex;
     align-items: center;
-    gap: 12px;
-    cursor: pointer;
-    border-radius: var(--radius-md);
-    margin: 4px 0;
-    transition: all var(--transition-fast);
-    color: var(--text-primary);
-    font-weight: 500;
+    justify-content: space-between;
+    padding: 0 var(--space-lg);
+    z-index: var(--z-sticky);
+    box-shadow: var(--shadow-sm);
 }
 
-.nav-item:hover {
-    background: var(--bg-hover);
-    transform: translateX(2px);
-}
-
-.nav-item.active {
-    background: var(--accent-color);
-    color: white;
-}
-
-.file-list {
-    flex: 1;
-    overflow-y: auto;
-    padding: var(--space-md);
-}
-
-.file-item {
-    padding: var(--space-md);
+.header-left {
     display: flex;
     align-items: center;
     gap: var(--space-md);
-    cursor: pointer;
-    border-radius: var(--radius-md);
-    border-bottom: 1px solid var(--border-light);
-    transition: all var(--transition-fast);
-    color: var(--text-primary);
 }
 
-.file-item:hover {
-    background: var(--bg-hover);
-    transform: translateX(2px);
-}
-
-.file-item.selected {
-    background: var(--accent-light);
-    border-color: var(--accent-color);
-}
-
-.file-icon {
-    font-size: 32px;
-}
-
-/* Tasks Layout */
-.tasks-container {
-    max-width: 800px;
-    margin: 0 auto;
-    padding: var(--space-xl);
-    padding-top: 80px;
-}
-
-.task-input {
+.header-right {
     display: flex;
+    align-items: center;
     gap: var(--space-sm);
-    margin-bottom: var(--space-xl);
 }
 
-.task-input input {
-    flex: 1;
-    padding: 12px 20px;
+.logo-wrapper {
+    display: flex;
+    align-items: center;
+    gap: var(--space-sm);
+    cursor: pointer;
+    padding: var(--space-sm);
+    border-radius: var(--radius-md);
+    transition: all var(--transition-fast);
+}
+
+.logo-wrapper:hover {
+    background: var(--bg-hover);
+    transform: scale(1.02);
+}
+
+.logo-icon {
+    width: 36px;
+    height: 36px;
+    background: url("https://pragmatismo.com.br/icons/general-bots.svg")
+        center/contain no-repeat;
+    border-radius: var(--radius-md);
+}
+
+.logo-text {
+    font-size: 18px;
+    font-weight: 700;
+    background: var(--accent-gradient);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+}
+
+/* ============================================ */
+/* ICON BUTTONS (Apps, Theme, User)            */
+/* ============================================ */
+.icon-button {
+    width: 40px;
+    height: 40px;
+    border-radius: var(--radius-full);
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    cursor: pointer;
+    border: 1px solid var(--border-color);
     background: var(--glass-bg);
-    border: 2px solid var(--border-color);
-    border-radius: var(--radius-lg);
     color: var(--text-primary);
-    font-size: 15px;
     transition: all var(--transition-fast);
     backdrop-filter: blur(10px);
 }
 
-.task-input input:focus {
-    outline: none;
+.icon-button:hover {
+    background: var(--bg-hover);
     border-color: var(--accent-color);
-    box-shadow: 0 0 0 4px var(--accent-light);
-}
-
-.task-input input::placeholder {
-    color: var(--text-tertiary);
-}
-
-.task-input button {
-    padding: 12px 24px;
-    background: var(--accent-color);
-    color: white;
-    border: none;
-    border-radius: var(--radius-lg);
-    cursor: pointer;
-    font-weight: 600;
-    font-size: 15px;
-    transition: all var(--transition-fast);
-    box-shadow: var(--shadow-sm);
-}
-
-.task-input button:hover {
-    background: var(--accent-hover);
     transform: translateY(-2px);
     box-shadow: var(--shadow-md);
 }
 
-.task-list {
-    list-style: none;
+.icon-button:active {
+    transform: translateY(0);
 }
 
-.task-item {
-    padding: var(--space-md);
-    display: flex;
-    align-items: center;
-    gap: var(--space-md);
+.icon-button svg {
+    width: 20px;
+    height: 20px;
+}
+
+/* ============================================ */
+/* THEME DROPDOWN                               */
+/* ============================================ */
+.theme-dropdown {
+    padding: 8px 16px;
     background: var(--glass-bg);
-    border: 1px solid var(--glass-border);
-    border-radius: var(--radius-md);
-    margin-bottom: var(--space-sm);
+    border: 1px solid var(--border-color);
+    border-radius: var(--radius-lg);
+    color: var(--text-primary);
+    font-family: inherit;
+    font-size: 14px;
+    font-weight: 500;
+    cursor: pointer;
     transition: all var(--transition-fast);
-    backdrop-filter: blur(20px);
+    backdrop-filter: blur(10px);
+    outline: none;
 }
 
-.task-item:hover {
-    transform: translateX(4px);
+.theme-dropdown:hover {
+    border-color: var(--accent-color);
     box-shadow: var(--shadow-sm);
 }
 
-.task-item.completed span {
-    text-decoration: line-through;
-    opacity: 0.5;
+.theme-dropdown:focus {
+    border-color: var(--accent-color);
+    box-shadow: 0 0 0 3px var(--accent-light);
 }
 
-.task-item input[type="checkbox"] {
-    width: 20px;
-    height: 20px;
-    cursor: pointer;
-    accent-color: var(--accent-color);
+/* ============================================ */
+/* APPS DROPDOWN MENU                           */
+/* ============================================ */
+.apps-dropdown {
+    position: absolute;
+    top: calc(100% + 8px);
+    right: 60px;
+    width: 280px;
+    background: var(--glass-bg);
+    backdrop-filter: blur(20px) saturate(180%);
+    -webkit-backdrop-filter: blur(20px) saturate(180%);
+    border: 1px solid var(--glass-border);
+    border-radius: var(--radius-xl);
+    box-shadow: var(--shadow-xl);
+    padding: var(--space-md);
+    opacity: 0;
+    transform: translateY(-10px) scale(0.95);
+    pointer-events: none;
+    transition: all var(--transition-smooth);
+    z-index: var(--z-dropdown);
 }
 
-.task-item span {
-    flex: 1;
-    color: var(--text-primary);
-    font-size: 15px;
+.apps-dropdown.show {
+    opacity: 1;
+    transform: translateY(0) scale(1);
+    pointer-events: all;
 }
 
-.task-item button {
-    background: var(--error-color);
-    color: white;
-    border: none;
-    padding: 8px 16px;
-    border-radius: var(--radius-sm);
-    cursor: pointer;
-    transition: all var(--transition-fast);
-    font-weight: 500;
+.apps-dropdown-title {
+    font-size: 12px;
+    font-weight: 700;
+    text-transform: uppercase;
+    letter-spacing: 0.5px;
+    color: var(--text-tertiary);
+    margin-bottom: var(--space-md);
+    padding-left: var(--space-sm);
 }
 
-.task-item button:hover {
-    opacity: 0.9;
-    transform: scale(1.05);
-}
-
-.task-filters {
-    display: flex;
+.app-grid {
+    display: grid;
+    grid-template-columns: repeat(2, 1fr);
     gap: var(--space-sm);
-    margin-top: var(--space-xl);
-    padding-top: var(--space-xl);
-    border-top: 1px solid var(--border-color);
 }
 
-.task-filters button {
-    padding: 10px 20px;
-    background: var(--bg-secondary);
+.app-item {
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    gap: var(--space-sm);
+    padding: var(--space-md);
+    border-radius: var(--radius-lg);
+    text-decoration: none;
     color: var(--text-primary);
-    border: 1px solid var(--border-color);
-    border-radius: var(--radius-md);
-    cursor: pointer;
     transition: all var(--transition-fast);
-    font-weight: 500;
+    cursor: pointer;
+    border: 1px solid transparent;
 }
 
-.task-filters button:hover {
+.app-item:hover {
     background: var(--bg-hover);
+    border-color: var(--border-color);
     transform: translateY(-2px);
 }
 
-.task-filters button.active {
-    background: var(--accent-color);
-    color: white;
-    border-color: var(--accent-color);
-}
-
-/* Mail Layout */
-.mail-layout {
-    display: grid;
-    grid-template-columns: 250px 350px 1fr;
-    gap: var(--space-md);
-    padding: var(--space-lg);
-    height: 100%;
-    background: var(--primary-bg);
-}
-
-.mail-sidebar,
-.mail-list,
-.mail-content {
-    overflow-y: auto;
-    background: var(--glass-bg);
-    border: 1px solid var(--glass-border);
-    border-radius: var(--radius-lg);
-    padding: var(--space-md);
-    backdrop-filter: blur(20px);
-}
-
-.mail-item {
-    padding: var(--space-md);
-    cursor: pointer;
-    border-bottom: 1px solid var(--border-light);
-    transition: all var(--transition-fast);
-    border-radius: var(--radius-sm);
-    margin-bottom: var(--space-xs);
-    color: var(--text-primary);
-}
-
-.mail-item:hover {
-    background: var(--bg-hover);
-    transform: translateX(2px);
-}
-
-.mail-item.unread {
-    font-weight: 600;
-}
-
-.mail-item.selected {
+.app-item.active {
     background: var(--accent-light);
     border-color: var(--accent-color);
 }
 
-.mail-content-view {
-    padding: var(--space-lg);
+.app-icon {
+    font-size: 28px;
+    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
 }
 
-.mail-header {
-    margin-bottom: var(--space-lg);
-    padding-bottom: var(--space-md);
-    border-bottom: 1px solid var(--border-color);
-}
-
-.mail-header h2 {
-    color: var(--text-primary);
-    margin-bottom: var(--space-sm);
-}
-
-.mail-header .text-sm {
-    color: var(--text-secondary);
-}
-
-.mail-body {
-    line-height: 1.7;
-    color: var(--text-primary);
-}
-
-/* Responsive adjustments for all modules */
-@media (max-width: 1024px) {
-    .drive-layout {
-        grid-template-columns: 200px 1fr;
-    }
-
-    .drive-details {
-        display: none;
-    }
-
-    .mail-layout {
-        grid-template-columns: 200px 300px 1fr;
-    }
-}
-
-@media (max-width: 768px) {
-    .drive-layout {
-        grid-template-columns: 1fr;
-        padding: var(--space-md);
-    }
-
-    .drive-sidebar,
-    .drive-details {
-        display: none;
-    }
-
-    .mail-layout {
-        grid-template-columns: 1fr;
-        padding: var(--space-md);
-    }
-
-    .mail-sidebar,
-    .mail-list {
-        display: none;
-    }
-
-    .tasks-container {
-        padding: var(--space-lg);
-        padding-top: 80px;
-    }
-
-    .task-input {
-        flex-direction: column;
-    }
-
-    .task-input button {
-        width: 100%;
-    }
-}
-
-@media (max-width: 480px) {
-    .tasks-container {
-        padding: var(--space-md);
-        padding-top: 70px;
-    }
-
-    .task-item {
-        padding: var(--space-sm);
-        font-size: 14px;
-    }
-
-    .task-filters {
-        flex-wrap: wrap;
-    }
-}
-
-/* Common utility classes for all modules */
-.module-header {
-    padding: var(--space-lg);
-    border-bottom: 1px solid var(--border-color);
-    background: var(--glass-bg);
-    backdrop-filter: blur(20px);
-}
-
-.module-header h1 {
-    color: var(--text-primary);
-    font-size: 24px;
-    font-weight: 600;
-}
-
-.module-toolbar {
-    display: flex;
-    align-items: center;
-    gap: var(--space-sm);
-    padding: var(--space-md);
-    background: var(--bg-secondary);
-    border-bottom: 1px solid var(--border-color);
-}
-
-.module-toolbar button {
-    padding: 8px 16px;
-    background: var(--bg);
-    color: var(--text-primary);
-    border: 1px solid var(--border-color);
-    border-radius: var(--radius-md);
-    cursor: pointer;
-    transition: all var(--transition-fast);
+.app-item span {
+    font-size: 13px;
     font-weight: 500;
 }
 
-.module-toolbar button:hover {
-    background: var(--bg-hover);
-    transform: translateY(-1px);
+/* ============================================ */
+/* USER AVATAR                                  */
+/* ============================================ */
+.user-avatar {
+    width: 40px;
+    height: 40px;
+    border-radius: var(--radius-full);
+    background: var(--accent-gradient);
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    color: white;
+    font-weight: 700;
+    font-size: 16px;
+    cursor: pointer;
+    transition: all var(--transition-fast);
     box-shadow: var(--shadow-sm);
 }
 
-.module-toolbar button.primary {
-    background: var(--accent-color);
-    color: white;
-    border-color: var(--accent-color);
+.user-avatar:hover {
+    transform: scale(1.1);
+    box-shadow: var(--shadow-md);
 }
 
-.module-toolbar button.primary:hover {
-    background: var(--accent-hover);
-}
-
-/* Empty state for all modules */
-.empty-state {
+/* ============================================ */
+/* LOADING OVERLAY                              */
+/* ============================================ */
+.loading-overlay {
+    position: fixed;
+    inset: 0;
+    background: var(--primary-bg);
     display: flex;
-    flex-direction: column;
     align-items: center;
     justify-content: center;
-    padding: var(--space-xl);
-    text-align: center;
-    color: var(--text-secondary);
+    z-index: var(--z-modal);
+    transition:
+        opacity var(--transition-smooth),
+        visibility var(--transition-smooth);
 }
 
-.empty-state-icon {
-    font-size: 64px;
-    margin-bottom: var(--space-md);
-    opacity: 0.5;
+.loading-overlay.hidden {
+    opacity: 0;
+    visibility: hidden;
+    pointer-events: none;
 }
 
-.empty-state-title {
-    font-size: 20px;
-    font-weight: 600;
-    color: var(--text-primary);
-    margin-bottom: var(--space-sm);
+.loading-spinner {
+    width: 48px;
+    height: 48px;
+    border: 4px solid var(--border-color);
+    border-top-color: var(--accent-color);
+    border-radius: var(--radius-full);
+    animation: spin 0.8s linear infinite;
 }
 
-.empty-state-description {
-    font-size: 14px;
-    color: var(--text-secondary);
-    max-width: 400px;
+@keyframes spin {
+    to {
+        transform: rotate(360deg);
+    }
+}
+
+/* ============================================ */
+/* SCROLLBAR STYLING                            */
+/* ============================================ */
+::-webkit-scrollbar {
+    width: 8px;
+    height: 8px;
+}
+
+::-webkit-scrollbar-track {
+    background: var(--scrollbar-track);
+}
+
+::-webkit-scrollbar-thumb {
+    background: var(--scrollbar-thumb);
+    border-radius: var(--radius-full);
+}
+
+::-webkit-scrollbar-thumb:hover {
+    background: var(--scrollbar-thumb-hover);
+}
+
+/* Firefox */
+* {
+    scrollbar-width: thin;
+    scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
+}
+
+/* ============================================ */
+/* UTILITY CLASSES                              */
+/* ============================================ */
+.fade-in {
+    animation: fadeIn var(--transition-smooth) ease-out;
 }
 
-/* Animation classes */
 @keyframes fadeIn {
     from {
         opacity: 0;
@@ -506,8 +563,8 @@ body {
     }
 }
 
-.fade-in {
-    animation: fadeIn 0.3s ease-out;
+.slide-in {
+    animation: slideIn var(--transition-smooth) ease-out;
 }
 
 @keyframes slideIn {
@@ -521,6 +578,64 @@ body {
     }
 }
 
-.slide-in {
-    animation: slideIn 0.3s ease-out;
+.glass-panel {
+    background: var(--glass-bg);
+    backdrop-filter: blur(20px) saturate(180%);
+    -webkit-backdrop-filter: blur(20px) saturate(180%);
+    border: 1px solid var(--glass-border);
+    border-radius: var(--radius-lg);
+    box-shadow: var(--shadow-md);
+}
+
+/* ============================================ */
+/* RESPONSIVE DESIGN                            */
+/* ============================================ */
+@media (max-width: 768px) {
+    .float-header {
+        padding: 0 var(--space-md);
+    }
+
+    .logo-text {
+        display: none;
+    }
+
+    .theme-dropdown {
+        padding: 8px 12px;
+        font-size: 13px;
+    }
+
+    .apps-dropdown {
+        right: var(--space-md);
+        width: calc(100vw - 32px);
+        max-width: 280px;
+    }
+}
+
+@media (max-width: 480px) {
+    .float-header {
+        height: 56px;
+        padding: 0 var(--space-sm);
+    }
+
+    .icon-button {
+        width: 36px;
+        height: 36px;
+    }
+
+    .user-avatar {
+        width: 36px;
+        height: 36px;
+        font-size: 14px;
+    }
+}
+
+/* ============================================ */
+/* PRINT STYLES                                 */
+/* ============================================ */
+@media print {
+    .float-header,
+    .loading-overlay,
+    .apps-dropdown {
+        display: none !important;
+    }
 }
diff --git a/web/desktop/index.html b/web/desktop/index.html
index 6c7f6d46..14bb7ab9 100644
--- a/web/desktop/index.html
+++ b/web/desktop/index.html
@@ -16,8 +16,8 @@
                 font-family:
                     -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
                     Helvetica, Arial, sans-serif;
-                background: #ffffff;
-                color: #202124;
+                background: var(--primary-bg);
+                color: var(--primary-fg);
                 overflow: hidden;
             }
 
@@ -55,14 +55,14 @@
                 padding: 8px;
                 border-radius: 12px;
                 transition: all 0.3s;
-                background: rgba(255, 255, 255, 0.9);
+                background: var(--glass-bg);
                 backdrop-filter: blur(10px);
-                box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
+                box-shadow: var(--shadow-sm);
             }
 
             .logo-wrapper:hover {
-                background: rgba(255, 255, 255, 1);
-                box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
+                background: var(--bg-hover);
+                box-shadow: var(--shadow-md);
             }
 
             .logo-icon {
@@ -75,7 +75,7 @@
             .logo-text {
                 font-size: 18px;
                 font-weight: 500;
-                color: #202124;
+                color: var(--text-primary);
             }
 
             /* Right side - Apps menu and avatar */
@@ -97,20 +97,20 @@
                 align-items: center;
                 justify-content: center;
                 transition: all 0.3s;
-                color: #5f6368;
+                color: var(--text-secondary);
                 position: relative;
-                background: rgba(255, 255, 255, 0.9);
+                background: var(--glass-bg);
                 backdrop-filter: blur(10px);
-                box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
+                box-shadow: var(--shadow-sm);
             }
 
             .apps-menu-btn:hover {
-                background: rgba(255, 255, 255, 1);
-                box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
+                background: var(--bg-hover);
+                box-shadow: var(--shadow-md);
             }
 
             .apps-menu-btn:active {
-                background: rgba(255, 255, 255, 0.95);
+                background: var(--bg-active);
                 transform: scale(0.95);
             }
 
@@ -120,11 +120,9 @@
                 top: 60px;
                 right: 80px;
                 width: 320px;
-                background: white;
+                background: var(--glass-bg);
                 border-radius: 16px;
-                box-shadow:
-                    0 1px 2px 0 rgba(60, 64, 67, 0.3),
-                    0 2px 6px 2px rgba(60, 64, 67, 0.15);
+                box-shadow: var(--shadow-xl);
                 padding: 20px;
                 opacity: 0;
                 visibility: hidden;