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

:root {
  --berry-pink: #E91E63;
  --berry-light: #F06292;
  --berry-gradient: linear-gradient(135deg, #E91E63, #9C27B0);
  --bg-dark: #0a0a0b;
  --bg-surface: #141416;
  --bg-elevated: #1e1e22;
  --text-primary: #f5f5f5;
  --text-secondary: #888;
  --border-color: #2a2a2e;
}

.light {
  --bg-dark: #f8f8fa;
  --bg-surface: #ffffff;
  --bg-elevated: #f0f0f2;
  --text-primary: #1a1a1a;
  --text-secondary: #666;
  --border-color: #e0e0e2;
}

body {
  font-family: 'Space Grotesk', sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  min-height: 100vh;
  overflow: hidden;
}

.app {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* Pig Mascot */
.pig-mascot {
  object-fit: contain;
  image-rendering: pixelated;
}

.pig-thinking {
  animation: pigBounce 0.6s ease-in-out infinite;
}

.pig-error {
  animation: pigShake 0.4s ease-in-out;
}

@keyframes pigBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

@keyframes pigShake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-3px); }
  75% { transform: translateX(3px); }
}

/* Sidebar */
.sidebar {
  width: 280px;
  background: var(--bg-surface);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  position: fixed;
  left: -280px;
  top: 0;
  height: 100%;
  z-index: 100;
  transition: left 0.3s ease;
}

.sidebar-open {
  left: 0;
}

@media (min-width: 768px) {
  .sidebar {
    position: relative;
    left: 0;
  }
}

.sidebar-header {
  padding: 16px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.sidebar-close {
  display: block;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 24px;
  cursor: pointer;
}

@media (min-width: 768px) {
  .sidebar-close {
    display: none;
  }
}

.new-chat-btn {
  flex: 1;
  margin-right: 8px;
}

.conversation-list {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
}

.conversation-item {
  padding: 12px;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
  transition: background 0.2s;
}

.conversation-item:hover {
  background: var(--bg-elevated);
}

.conversation-item.active {
  background: var(--berry-pink);
  background: var(--berry-gradient);
}

.conv-preview {
  display: flex;
  flex-direction: column;
  gap: 4px;
  overflow: hidden;
}

.conv-title {
  font-size: 14px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.conv-time {
  font-size: 11px;
  color: var(--text-secondary);
}

.conversation-item.active .conv-time {
  color: rgba(255,255,255,0.7);
}

.delete-conv {
  background: none;
  border: none;
  opacity: 0;
  cursor: pointer;
  transition: opacity 0.2s;
}

.conversation-item:hover .delete-conv {
  opacity: 1;
}

/* Main Container */
.main-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

/* Header */
.header {
  padding: 12px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-surface);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.menu-btn {
  display: block;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 20px;
  cursor: pointer;
  padding: 8px;
}

@media (min-width: 768px) {
  .menu-btn {
    display: none;
  }
}

.app-title {
  font-size: 20px;
  font-weight: 700;
  background: var(--berry-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: flex;
  align-items: center;
  gap: 8px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.connection-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #888;
}

.connection-indicator.connected { background: #4CAF50; }
.connection-indicator.error { background: #f44336; }
.connection-indicator.testing { background: #FFC107; animation: pulse 1s infinite; }

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

.icon-btn {
  background: none;
  border: none;
  font-size: 18px;
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
  transition: background 0.2s;
}

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

/* Messages */
.messages-container {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
}

.messages-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 800px;
  margin: 0 auto;
  width: 100%;
}

.message {
  display: flex;
  gap: 12px;
  animation: fadeIn 0.3s ease;
}

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

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

.message-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  background: var(--bg-elevated);
  flex-shrink: 0;
  overflow: hidden;
}

.message-bubble {
  max-width: 75%;
  padding: 12px 16px;
  border-radius: 16px;
  position: relative;
}

.message-user .message-bubble {
  background: var(--berry-gradient);
  border-bottom-right-radius: 4px;
}

.message-assistant .message-bubble {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-bottom-left-radius: 4px;
}

.message-text {
  font-size: 15px;
  line-height: 1.5;
}

.markdown-content pre {
  background: var(--bg-dark);
  padding: 12px;
  border-radius: 8px;
  overflow-x: auto;
  margin: 8px 0;
}

.markdown-content code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
}

.markdown-content p code {
  background: var(--bg-dark);
  padding: 2px 6px;
  border-radius: 4px;
}

.message-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.message-time {
  font-size: 11px;
  color: var(--text-secondary);
}

.message-user .message-time {
  color: rgba(255,255,255,0.6);
}

.copy-btn {
  background: none;
  border: none;
  font-size: 12px;
  cursor: pointer;
  opacity: 0.5;
  transition: opacity 0.2s;
}

.copy-btn:hover {
  opacity: 1;
}

.message-error {
  color: #f44336;
  font-size: 13px;
  margin-top: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.retry-btn {
  background: rgba(244, 67, 54, 0.2);
  border: 1px solid #f44336;
  color: #f44336;
  padding: 4px 8px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 12px;
}

/* Typing Indicator */
.typing-indicator {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.typing-dots {
  display: flex;
  gap: 4px;
  padding: 16px;
  background: var(--bg-elevated);
  border-radius: 16px;
  border: 1px solid var(--border-color);
}

.typing-dots span {
  width: 8px;
  height: 8px;
  background: var(--berry-pink);
  border-radius: 50%;
  animation: typing 1.4s infinite;
}

.typing-dots span:nth-child(2) { animation-delay: 0.2s; }
.typing-dots span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing {
  0%, 60%, 100% { transform: translateY(0); }
  30% { transform: translateY(-8px); }
}

/* Empty State */
.empty-state {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 16px;
  color: var(--text-secondary);
}

.empty-state h2 {
  font-size: 24px;
  color: var(--text-primary);
}

.empty-state .hint {
  font-size: 12px;
  opacity: 0.6;
}

/* Input Area */
.input-container {
  padding: 16px 20px;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-color);
}

.input-wrapper {
  display: flex;
  gap: 12px;
  max-width: 800px;
  margin: 0 auto;
  background: var(--bg-elevated);
  border-radius: 16px;
  padding: 8px 16px;
  border: 1px solid var(--border-color);
  transition: border-color 0.2s;
}

.input-wrapper:focus-within {
  border-color: var(--berry-pink);
}

.message-input {
  flex: 1;
  background: none;
  border: none;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 15px;
  resize: none;
  max-height: 120px;
  outline: none;
  padding: 8px 0;
}

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

.send-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-surface);
  border: none;
  color: var(--text-secondary);
  font-size: 18px;
  cursor: pointer;
  transition: all 0.2s;
}

.send-btn.ready {
  background: var(--berry-gradient);
  color: white;
  animation: glow 2s infinite;
}

@keyframes glow {
  0%, 100% { box-shadow: 0 0 5px var(--berry-pink); }
  50% { box-shadow: 0 0 20px var(--berry-pink); }
}

.send-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  animation: none;
}

.input-hint {
  text-align: center;
  font-size: 11px;
  color: var(--text-secondary);
  margin-top: 8px;
}

/* Footer */
.footer {
  padding: 8px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11px;
  color: var(--text-secondary);
  background: var(--bg-surface);
}

.model-badge {
  background: var(--bg-elevated);
  padding: 4px 8px;
  border-radius: 4px;
  font-family: 'JetBrains Mono', monospace;
}

.footer-link {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-link:hover {
  color: var(--berry-pink);
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  display: flex;
  justify-content: flex-end;
  z-index: 1000;
  animation: fadeIn 0.2s ease;
}

.modal-content {
  width: 100%;
  max-width: 420px;
  height: 100%;
  background: var(--bg-surface);
  overflow-y: auto;
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from { transform: translateX(100%); }
  to { transform: translateX(0); }
}

.modal-header {
  padding: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  background: var(--bg-surface);
}

.modal-title {
  font-size: 20px;
  font-weight: 600;
}

.modal-close {
  background: none;
  border: none;
  font-size: 28px;
  color: var(--text-secondary);
  cursor: pointer;
}

.modal-body {
  padding: 20px;
}

.modal-footer {
  padding: 20px;
  display: flex;
  gap: 12px;
  border-top: 1px solid var(--border-color);
  position: sticky;
  bottom: 0;
  background: var(--bg-surface);
}

/* Status Bar */
.status-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px;
  background: var(--bg-elevated);
  border-radius: 8px;
  margin-bottom: 20px;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #888;
}

.status-dot.connected { background: #4CAF50; }
.status-dot.error { background: #f44336; }
.status-dot.testing { background: #FFC107; animation: pulse 1s infinite; }

/* Form Elements */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--text-secondary);
}

.form-input, .form-textarea {
  width: 100%;
  padding: 12px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  transition: border-color 0.2s;
}

.form-input:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--berry-pink);
}

.form-textarea {
  resize: vertical;
  min-height: 80px;
}

.form-hint {
  font-size: 11px;
  color: var(--text-secondary);
  margin-top: 6px;
}

.form-range {
  width: 100%;
  accent-color: var(--berry-pink);
}

.input-with-toggle {
  position: relative;
}

.toggle-visibility {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  font-size: 16px;
}

.checkbox-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.checkbox-group input {
  accent-color: var(--berry-pink);
}

/* Presets */
.presets-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.preset-btn {
  padding: 10px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.2s;
}

.preset-btn:hover {
  border-color: var(--berry-pink);
  background: rgba(233, 30, 99, 0.1);
}

/* Buttons */
.btn {
  padding: 12px 20px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
}

.btn-primary {
  background: var(--berry-gradient);
  color: white;
}

.btn-primary:hover {
  opacity: 0.9;
}

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  border-color: var(--berry-pink);
}

/* Mobile Responsive */
@media (max-width: 480px) {
  .message-bubble {
    max-width: 85%;
  }
  
  .modal-content {
    max-width: 100%;
  }
  
  .presets-grid {
    grid-template-columns: 1fr;
  }
}