:root {
  --bg-primary: #0f0f1a;
  --bg-secondary: #1a1a2e;
  --bg-tertiary: #252542;
  --accent-pink: #ff6b9d;
  --accent-purple: #9d4edd;
  --accent-cyan: #00d4ff;
  --text-primary: #f0f0f5;
  --text-secondary: #a0a0b0;
  --user-bubble: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --assistant-bubble: #252542;
  --border-color: #3a3a5c;
}

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

body {
  font-family: 'Space Grotesk', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  background-image: 
    radial-gradient(ellipse at 20% 20%, rgba(157, 78, 221, 0.1) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(255, 107, 157, 0.1) 0%, transparent 50%);
}

.app-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
  max-width: 900px;
  margin: 0 auto;
}

/* Header */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.header-left h1 {
  font-size: 1.25rem;
  font-weight: 600;
  background: linear-gradient(135deg, var(--accent-pink), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.mode-badge {
  font-size: 0.75rem;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
}

.mode-badge.cloud {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.mode-badge.local {
  border-color: var(--accent-pink);
  color: var(--accent-pink);
}

.icon-btn {
  background: transparent;
  border: none;
  font-size: 1.25rem;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 0.5rem;
  transition: background 0.2s;
}

.icon-btn:hover {
  background: var(--bg-tertiary);
}

/* Piggy Mascot */
.piggy-mascot {
  animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-3px); }
}

/* Chat Area */
.chat-area {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
}

.messages {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* Messages */
.message {
  display: flex;
  gap: 0.75rem;
  max-width: 85%;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.message.user {
  margin-left: auto;
  flex-direction: row-reverse;
}

.message.assistant {
  margin-right: auto;
}

.avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.message-bubble {
  padding: 0.875rem 1rem;
  border-radius: 1rem;
  position: relative;
  line-height: 1.5;
}

.message.user .message-bubble {
  background: var(--user-bubble);
  border-bottom-right-radius: 0.25rem;
}

.message.assistant .message-bubble {
  background: var(--assistant-bubble);
  border: 1px solid var(--border-color);
  border-bottom-left-radius: 0.25rem;
}

.timestamp {
  font-size: 0.7rem;
  color: var(--text-secondary);
  margin-top: 0.5rem;
  opacity: 0.7;
}

/* Typing Indicator */
.typing-indicator {
  display: flex;
  gap: 0.3rem;
  padding: 1rem 1.25rem;
}

.typing-indicator span {
  width: 8px;
  height: 8px;
  background: var(--accent-pink);
  border-radius: 50%;
  animation: pulse 1.4s ease-in-out infinite;
}

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

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

@keyframes pulse {
  0%, 100% { transform: scale(0.8); opacity: 0.5; }
  50% { transform: scale(1.2); opacity: 1; }
}

/* Code Block */
.code-block {
  margin: 0.75rem 0;
  border-radius: 0.75rem;
  overflow: hidden;
  background: #1e1e2e;
  border: 1px solid var(--border-color);
}

.code-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 1rem;
  background: #2a2a3e;
  border-bottom: 1px solid var(--border-color);
}

.language-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--accent-purple);
  text-transform: uppercase;
}

.code-actions {
  display: flex;
  gap: 0.5rem;
}

.copy-btn, .launch-btn {
  font-size: 0.75rem;
  padding: 0.35rem 0.75rem;
  border-radius: 0.375rem;
  border: none;
  cursor: pointer;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 500;
  transition: all 0.2s;
}

.copy-btn {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.copy-btn:hover {
  background: #3a3a5c;
}

.launch-btn {
  background: linear-gradient(135deg, #00c853, #00bfa5);
  color: white;
  box-shadow: 0 2px 8px rgba(0, 200, 83, 0.3);
}

.launch-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 200, 83, 0.4);
}

.code-block pre {
  margin: 0;
  padding: 1rem;
  overflow-x: auto;
}

.code-block code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  line-height: 1.6;
}

/* Markdown Content */
.markdown-content {
  line-height: 1.6;
}

.markdown-content p {
  margin: 0.5rem 0;
}

.markdown-content code {
  font-family: 'JetBrains Mono', monospace;
  background: rgba(255, 255, 255, 0.1);
  padding: 0.15rem 0.4rem;
  border-radius: 0.25rem;
  font-size: 0.9em;
}

.markdown-content ul, .markdown-content ol {
  margin: 0.5rem 0;
  padding-left: 1.5rem;
}

.markdown-content a {
  color: var(--accent-cyan);
  text-decoration: none;
}

.markdown-content a:hover {
  text-decoration: underline;
}

/* Welcome Screen */
.welcome-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding: 2rem;
  text-align: center;
}

.welcome-mascot {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.welcome-mascot .piggy-mascot {
  width: 80px;
  height: 80px;
}

.welcome-mascot h1 {
  font-size: 2rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent-pink), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.welcome-mascot p {
  color: var(--text-secondary);
  font-size: 1rem;
}

.examples-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  max-width: 600px;
  width: 100%;
}

.example-card {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  cursor: pointer;
  text-align: left;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.9rem;
  color: var(--text-primary);
  transition: all 0.2s;
}

.example-card:hover {
  border-color: var(--accent-purple);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(157, 78, 221, 0.2);
}

.example-icon {
  font-size: 1.5rem;
}

/* Input Area */
.input-area {
  padding: 1rem 1.5rem 1.5rem;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
}

.input-container {
  display: flex;
  gap: 0.75rem;
  background: var(--bg-tertiary);
  border-radius: 1rem;
  padding: 0.5rem;
  border: 1px solid var(--border-color);
  transition: border-color 0.2s;
}

.input-container:focus-within {
  border-color: var(--accent-purple);
}

.input-container textarea {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  resize: none;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1rem;
  color: var(--text-primary);
  padding: 0.5rem;
  min-height: 24px;
  max-height: 150px;
}

.input-container textarea::placeholder {
  color: var(--text-secondary);
}

.send-btn {
  width: 44px;
  height: 44px;
  border-radius: 0.75rem;
  border: none;
  cursor: pointer;
  font-size: 1.25rem;
  background: linear-gradient(135deg, var(--accent-purple), var(--accent-pink));
  color: white;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.send-btn:hover:not(:disabled) {
  transform: scale(1.05);
}

.send-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.send-btn.stop {
  background: #ff4444;
}

.input-hint {
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 0.5rem;
}

.footer-link {
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 0.5rem;
}

.footer-link a {
  color: var(--accent-pink);
  text-decoration: none;
}

.footer-link a:hover {
  text-decoration: underline;
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 1rem;
  animation: fadeIn 0.2s ease;
}

.modal-content {
  background: var(--bg-secondary);
  border-radius: 1rem;
  width: 100%;
  max-width: 450px;
  max-height: 90vh;
  overflow-y: auto;
  border: 1px solid var(--border-color);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem;
  border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
  font-size: 1.25rem;
  font-weight: 600;
}

.close-btn {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.25rem;
  line-height: 1;
}

.close-btn:hover {
  color: var(--text-primary);
}

.tabs {
  display: flex;
  border-bottom: 1px solid var(--border-color);
}

.tab {
  flex: 1;
  padding: 1rem;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s;
}

.tab.active {
  color: var(--accent-pink);
  border-bottom: 2px solid var(--accent-pink);
}

.settings-form {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.settings-form label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.settings-form input,
.settings-form select {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  color: var(--text-primary);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  outline: none;
  transition: border-color 0.2s;
}

.settings-form input:focus,
.settings-form select:focus {
  border-color: var(--accent-purple);
}

.api-key-input {
  display: flex;
  gap: 0.5rem;
}

.api-key-input input {
  flex: 1;
}

.toggle-visibility {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  padding: 0 0.75rem;
  cursor: pointer;
  font-size: 1rem;
}

.test-connection {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.test-btn {
  padding: 0.5rem 1rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  color: var(--text-primary);
  font-family: 'Space Grotesk', sans-serif;
  cursor: pointer;
  transition: all 0.2s;
}

.test-btn:hover {
  border-color: var(--accent-cyan);
}

.status-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.status-dot.success {
  background: #00c853;
  box-shadow: 0 0 8px rgba(0, 200, 83, 0.5);
}

.status-dot.error {
  background: #ff4444;
  box-shadow: 0 0 8px rgba(255, 68, 68, 0.5);
}

.save-btn {
  width: 100%;
  padding: 0.875rem;
  background: linear-gradient(135deg, var(--accent-purple), var(--accent-pink));
  border: none;
  border-radius: 0.5rem;
  color: white;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  margin-top: 0.5rem;
}

.save-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(157, 78, 221, 0.3);
}

/* Syntax Highlighting */
.hljs {
  background: transparent !important;
}

/* Mobile Responsive */
@media (max-width: 640px) {
  .header {
    padding: 0.75rem 1rem;
  }
  
  .header-left h1 {
    font-size: 1rem;
  }
  
  .message {
    max-width: 95%;
  }
  
  .welcome-mascot .piggy-mascot {
    width: 60px;
    height: 60px;
  }
  
  .welcome-mascot h1 {
    font-size: 1.5rem;
  }
  
  .examples-grid {
    grid-template-columns: 1fr;
  }
  
  .input-area {
    padding: 0.75rem 1rem 1rem;
  }
  
  .code-header {
    flex-wrap: wrap;
    gap: 0.5rem;
  }
}