* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Cairo', sans-serif;
  background: linear-gradient(135deg, var(--color-bg) 0%, #1a1a2e 100%);
  color: var(--color-text);
  transition: all var(--transition);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.6;
}

body.light {
  background: linear-gradient(135deg, var(--color-bg-light) 0%, #e3f2fd 100%);
  --color-bg: #f9f9f9;
  --color-text: var(--color-text-dark);
  --color-card-bg: var(--color-card-bg-light);
  --color-chat-bg: var(--color-chat-bg-light);
}

/* Enhanced Header */
header {
  background: linear-gradient(135deg, #0066cc, #00cc99, #00ff99);
  color: white;
  text-align: center;
  padding: 2rem;
  box-shadow: var(--shadow-glow);
  position: relative;
  overflow: hidden;
}

header::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(45deg, transparent, rgba(255,255,255,0.1), transparent);
  animation: shimmer 3s infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
  100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

.header-title {
  font-size: 2.5rem;
  font-weight: 700;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
  margin-bottom: 0.5rem;
  position: relative;
  z-index: 1;
}

.header-subtitle {
  font-size: 1.2rem;
  opacity: 0.9;
  position: relative;
  z-index: 1;
}

/* Advanced Control Panel */
.control-panel {
  position: fixed;
  top: 15px;
  right: 15px;
  z-index: 1000;
  display: flex;
  gap: 10px;
}

.control-btn {
  background: var(--color-primary);
  border: none;
  border-radius: 50%;
  padding: 12px;
  cursor: pointer;
  font-size: 18px;
  transition: all var(--transition);
  box-shadow: var(--shadow);
  color: #121212;
}

.control-btn:hover {
  background: var(--color-primary-hover);
  transform: scale(1.1);
  box-shadow: var(--shadow-glow);
}

/* Enhanced Navigation */
nav {
  display: flex;
  justify-content: center;
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(10px);
  padding: 1rem;
  gap: 0.5rem;
  flex-wrap: wrap;
  border-bottom: 1px solid rgba(0, 255, 153, 0.2);
}

nav button {
  background: transparent;
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 30px;
  padding: 0.7rem 1.5rem;
  font-family: 'Cairo', sans-serif;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

nav button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s;
}

nav button:hover::before {
  left: 100%;
}

nav button:hover {
  background: rgba(0, 255, 153, 0.2);
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 255, 153, 0.3);
}

nav button.active {
  background: var(--color-primary);
  color: #121212;
  border-color: var(--color-primary);
  box-shadow: var(--shadow-glow);
}

main {
  flex: 1;
  padding: 2rem;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}

.section-title {
  text-align: center;
  margin: 2rem 0;
  color: var(--color-primary);
  font-size: 2.5rem;
  position: relative;
  text-shadow: 0 0 10px rgba(0, 255, 153, 0.5);
}

.section-title::after {
  content: '';
  display: block;
  width: 120px;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  margin: 1rem auto;
  border-radius: 2px;
  box-shadow: 0 0 10px rgba(0, 255, 153, 0.5);
}

/* Enhanced App Grid */
.app-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.app-card {
  background: var(--color-card-bg);
  border-radius: 20px;
  overflow: hidden;
  transition: all var(--transition);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  border: 2px solid transparent;
  position: relative;
}

.app-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: 20px;
  padding: 2px;
  background: linear-gradient(45deg, var(--color-primary), var(--color-accent), var(--color-primary));
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition);
}

.app-card:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: 0 15px 30px rgba(0, 255, 153, 0.3);
}

.app-card:hover::before {
  opacity: 1;
}

.app-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-bottom: 3px solid var(--color-primary);
  transition: all var(--transition);
}

.app-card:hover img {
  transform: scale(1.05);
}

.app-content {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.app-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--color-primary);
  text-shadow: 0 0 5px rgba(0, 255, 153, 0.3);
}

.app-desc {
  color: var(--color-text);
  opacity: 0.9;
  margin-bottom: 1rem;
  flex: 1;
  line-height: 1.6;
}

.app-features {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.feature-tag {
  background: rgba(0, 255, 153, 0.1);
  color: var(--color-primary);
  padding: 0.3rem 0.6rem;
  border-radius: 15px;
  font-size: 0.8rem;
  border: 1px solid rgba(0, 255, 153, 0.3);
}

.app-category {
  display: inline-block;
  background: linear-gradient(45deg, rgba(0, 255, 153, 0.2), rgba(255, 107, 107, 0.2));
  color: var(--color-primary);
  padding: 0.4rem 1rem;
  border-radius: 20px;
  font-size: 0.9rem;
  margin-bottom: 1rem;
  border: 1px solid rgba(0, 255, 153, 0.3);
}

.opensource-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  background: var(--color-success);
  color: white;
  padding: 0.3rem 0.6rem;
  border-radius: 10px;
  font-size: 0.8rem;
  font-weight: bold;
}

.btn-install {
  background: linear-gradient(45deg, var(--color-primary), var(--color-accent));
  color: #121212;
  border: none;
  border-radius: 30px;
  padding: 1rem 2rem;
  font-family: 'Cairo', sans-serif;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  position: relative;
  overflow: hidden;
}

.btn-install::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  transition: left 0.5s;
}

.btn-install:hover::before {
  left: 100%;
}

.btn-install:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 255, 153, 0.4);
}

/* Advanced AI Section */
#ai-section {
  background: var(--color-card-bg);
  border-radius: 20px;
  padding: 2rem;
  box-shadow: var(--shadow-glow);
  display: none;
  flex-direction: column;
  height: 80vh;
  border: 2px solid rgba(0, 255, 153, 0.2);
}

.chat-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--color-chat-bg);
  border-radius: 15px;
  overflow: hidden;
  margin-bottom: 1rem;
  box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.3);
}

.chat-header {
  background: linear-gradient(135deg, #0066cc, #00cc99, #00ff99);
  color: white;
  padding: 1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 15px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.ai-status {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.9rem;
}

.status-indicator {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-success);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-height: 60vh;
}

.message {
  max-width: 85%;
  padding: 1rem 1.5rem;
  border-radius: 20px;
  animation: messageSlide 0.3s ease;
  position: relative;
  word-wrap: break-word;
}

@keyframes messageSlide {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.user-message {
  background: linear-gradient(45deg, var(--color-primary), var(--color-accent));
  color: #121212;
  align-self: flex-end;
  border-bottom-right-radius: 5px;
  box-shadow: 0 4px 15px rgba(0, 255, 153, 0.3);
}

.ai-message {
  background: linear-gradient(45deg, #333, #444);
  color: var(--color-text);
  align-self: flex-start;
  border-bottom-left-radius: 5px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  border-left: 4px solid var(--color-primary);
}

.light .ai-message {
  background: linear-gradient(45deg, #e0e0e0, #f0f0f0);
  color: #333;
}

/* Code highlighting in messages */
.message pre {
  background: rgba(0, 0, 0, 0.5);
  padding: 1rem;
  border-radius: 10px;
  overflow-x: auto;
  margin: 0.5rem 0;
  border-left: 4px solid var(--color-primary);
}

.message code {
  background: rgba(0, 0, 0, 0.3);
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-family: 'Courier New', monospace;
}

.chat-input-container {
  display: flex;
  gap: 1rem;
  align-items: flex-end;
}

#ai-input {
  flex: 1;
  padding: 1rem 1.5rem;
  border-radius: 25px;
  border: 2px solid rgba(0, 255, 153, 0.3);
  background: var(--color-card-bg);
  color: var(--color-text);
  font-family: 'Cairo', sans-serif;
  font-size: 1rem;
  resize: none;
  min-height: 60px;
  max-height: 120px;
  transition: all var(--transition);
  box-shadow: inset 0 2px 5px rgba(0, 0, 0, 0.1);
}

#ai-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 20px rgba(0, 255, 153, 0.3);
}

#ai-run-btn {
  background: linear-gradient(45deg, var(--color-primary), var(--color-accent));
  color: #121212;
  border: none;
  border-radius: 25px;
  padding: 1rem 2rem;
  font-family: 'Cairo', sans-serif;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  gap: 10px;
  position: relative;
  overflow: hidden;
}

#ai-run-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  transition: left 0.5s;
}

#ai-run-btn:hover::before {
  left: 100%;
}

#ai-run-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 255, 153, 0.4);
}

#ai-run-btn:disabled {
  background: #666;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.ai-typing {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 1rem 1.5rem;
  background: linear-gradient(45deg, #333, #444);
  color: var(--color-text);
  border-radius: 20px;
  align-self: flex-start;
  border-bottom-left-radius: 5px;
  border-left: 4px solid var(--color-primary);
}

.ai-typing span {
  width: 8px;
  height: 8px;
  background: var(--color-primary);
  border-radius: 50%;
  display: inline-block;
  animation: typingDot 1.4s infinite ease-in-out;
}

.ai-typing span:nth-child(2) {
  animation-delay: 0.2s;
}

.ai-typing span:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes typingDot {
  0%, 80%, 100% { transform: scale(0); opacity: 0.5; }
  40% { transform: scale(1); opacity: 1; }
}

/* Developer Tools Section */
.dev-tools {
  display: none;
  background: var(--color-card-bg);
  border-radius: 20px;
  padding: 2rem;
  margin-top: 2rem;
  border: 2px solid rgba(0, 255, 153, 0.2);
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.tool-card {
  background: rgba(0, 255, 153, 0.1);
  border: 2px solid rgba(0, 255, 153, 0.3);
  border-radius: 15px;
  padding: 1.5rem;
  transition: all var(--transition);
}

.tool-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 255, 153, 0.2);
}

.tool-title {
  color: var(--color-primary);
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.tool-desc {
  color: var(--color-text);
  margin-bottom: 1rem;
  opacity: 0.9;
}

.tool-btn {
  background: var(--color-primary);
  color: #121212;
  border: none;
  border-radius: 10px;
  padding: 0.8rem 1.5rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
  width: 100%;
}

.tool-btn:hover {
  background: var(--color-primary-hover);
  transform: translateY(-2px);
}

footer {
  background: linear-gradient(135deg, #0066cc, #00cc99, #00ff99);
  color: white;
  text-align: center;
  padding: 2rem;
  margin-top: 3rem;
  box-shadow: 0 -5px 20px rgba(0, 255, 153, 0.3);
}

footer a {
  color: white;
  text-decoration: none;
  transition: all var(--transition);
  padding: 0.2rem 0.5rem;
  border-radius: 5px;
}

footer a:hover {
  background: rgba(255, 255, 255, 0.2);
  text-decoration: underline;
}

/* Loading Animation */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(0, 255, 153, 0.3);
  border-radius: 50%;
  border-top-color: var(--color-primary);
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Responsive Design */
@media (max-width: 768px) {
  .app-list {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
  }
  
  .header-title {
    font-size: 2rem;
  }

  .header-subtitle {
    font-size: 1rem;
  }
  
  nav {
    padding: 0.8rem;
  }
  
  nav button {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
  }
  
  main {
    padding: 1rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  #ai-section {
    height: 70vh;
    padding: 1rem;
  }
  
  .message {
    max-width: 90%;
  }

  .control-panel {
    position: fixed;
    bottom: 20px;
    right: 20px;
    top: auto;
  }
}

@media (max-width: 480px) {
  .app-list {
    grid-template-columns: 1fr;
  }
  
  .header-title {
    font-size: 1.5rem;
  }
  
  .section-title {
    font-size: 1.8rem;
  }
  
  .chat-input-container {
    flex-direction: column;
    gap: 0.8rem;
  }
  
  #ai-run-btn {
    padding: 0.8rem;
    justify-content: center;
  }

  .control-panel {
    flex-direction: column;
  }
}

/* Dark mode detection */
@media (prefers-color-scheme: dark) {
  body:not(.light) {
    --color-bg: #121212;
    --color-text: #eee;
    --color-card-bg: #1e1e1e;
    --color-chat-bg: #2a2a2a;
  }
}

<section id="ai-section">
  <h2 class="section-title">🤖 Advanced AI Assistant - GPT-4 Powered</h2>
  <div class="chat-container">
    <div class="chat-header">
      <i class="fas fa-robot"></i>
      <div>
        <div>Naseem AI - GPT-4 Turbo</div>
        <div class="ai-status">
          <div class="status-indicator"></div>
          <span>Online & Ready</span>
        </div>
      </div>
    </div>
    <div class="chat-messages" id="chat-messages"></div>
  </div>
  <div class="chat-input-container">
    <textarea id="ai-input" placeholder="Ask me anything! I can help with coding, app development, problem solving, and much more..."></textarea>
    <button id="ai-run-btn">
      <i class="fas fa-paper-plane"></i> Send
    </button>
  </div>
</section>

<section id="developer-section" class="dev-tools">
  <h2 class="section-title">🛠️ Developer Tools & Platform</h2>
  <div class="tool-grid">
    <div class="tool-card">
      <div class="tool-title">
        <i class="fas fa-plus-circle"></i>
        Create New App
      </div>
      <div class="tool-desc">
        Use AI to generate complete mobile applications with advanced features and modern UI.
      </div>
      <button class="tool-btn" onclick="createNewApp()">Generate App</button>
    </div>
    
    <div class="tool-card">
      <div class="tool-title">
        <i class="fas fa-edit"></i>
        Modify Existing App
      </div>
      <div class="tool-desc">
        Upload an APK file and modify its features, UI, or functionality using AI assistance.
      </div>
      <button class="tool-btn" onclick="modifyApp()">Modify App</button>
    </div>
    
    <div class="tool-card">
      <div class="tool-title">
        <i class="fas fa-download"></i>
        Install Custom APK
      </div>
      <div class="tool-desc">
        Install and manage custom APK files with automatic security scanning.
      </div>
      <button class="tool-btn" onclick="installCustomAPK()">Install APK</button>
    </div>
    
    <div class="tool-card">
      <div class="tool-title">
        <i class="fas fa-sync"></i>
        Self-Update System
      </div>
      <div class="tool-desc">
        Let the platform update itself with new features and improvements automatically.
      </div>
      <button class="tool-btn" onclick="selfUpdate()">Update Platform</button>
    </div>
  </div>
</section>