.chat-container {
  display: flex;
  width: min(1400px, 96vw);
  height: calc(100vh - 180px);
  gap: 16px;
  margin-top: 16px;
}

.chat-sidebar {
  width: 280px;
  background: linear-gradient(180deg, var(--card) 0%, var(--card-deep) 100%);
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: 0 18px 30px var(--shadow);
}

.new-chat-btn {
  width: 100%;
  padding: 12px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: var(--accent-text);
  font-weight: 800;
  font-size: 0.9rem;
  text-transform: lowercase;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  font-family: inherit;
}

.new-chat-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 16px var(--shadow);
}

.chat-history {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.chat-history-item {
  padding: 10px 12px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  cursor: pointer;
  transition: all 0.2s ease;
}

.chat-history-item:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.12);
  transform: translateX(4px);
}

.chat-history-item.active {
  background: var(--accent-soft);
  border-color: var(--accent);
}

.chat-history-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.chat-history-preview {
  font-size: 0.75rem;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.chat-main {
  flex: 1;
  background: linear-gradient(180deg, var(--card) 0%, var(--card-deep) 100%);
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-direction: column;
  box-shadow: 0 18px 30px var(--shadow);
  overflow: hidden;
}

.chat-header {
  padding: 16px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

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

.chat-user-info {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.chat-user-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
  filter: none !important;
}

.chat-user-name {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text);
  text-transform: lowercase;
}

.model-select {
  padding: 10px 40px 10px 16px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.05);
  background-image: url("data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22292.4%22%20height%3D%22292.4%22%3E%3Cpath%20fill%3D%22%23FFFFFF%22%20d%3D%22M287%2069.4a17.6%2017.6%200%200%200-13-5.4H18.4c-5%200-9.3%201.8-12.9%205.4A17.6%2017.6%200%200%200%200%2082.2c0%205%201.8%209.3%205.4%2012.9l128%20127.9c3.6%203.6%207.8%205.4%2012.8%205.4s9.2-1.8%2012.8-5.4L287%2095c3.5-3.5%205.4-7.8%205.4-12.8%200-5-1.9-9.2-5.5-12.8z%22%2F%3E%3C%2Fsvg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 10px;
  color: var(--text);
  font-weight: 700;
  font-size: 0.85rem;
  cursor: pointer;
  appearance: none;
  font-family: inherit;
  transition: all 0.2s ease;
}

.model-select:hover {
  border-color: rgba(255, 255, 255, 0.2);
  background-color: rgba(255, 255, 255, 0.08);
}

.personality-btn {
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: lowercase;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.2s ease;
}

.personality-btn:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.welcome-message {
  text-align: center;
  margin: auto;
  color: var(--muted);
}

.welcome-message h2 {
  font-size: 1.8rem;
  font-weight: 900;
  text-transform: lowercase;
  margin-bottom: 8px;
  color: var(--text);
}

.message {
  display: flex;
  gap: 12px;
  max-width: 85%;
  animation: messageSlide 0.3s ease;
}

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

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

.message-avatar {
  min-width: 36px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  font-weight: 800;
  flex-shrink: 0;
  color: var(--accent-text);
  text-transform: lowercase;
  letter-spacing: -0.02em;
}

.message.assistant .message-avatar {
  background: linear-gradient(135deg, #667eea, #764ba2);
  color: #fff;
  background-image: url('/assets/logos/social/favicon.ico');
  background-size: 70%;
  background-position: center;
  background-repeat: no-repeat;
  font-size: 0;
}

.message-content {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  padding: 12px 16px;
  color: var(--text);
  line-height: 1.6;
  word-wrap: break-word;
}

.message.user .message-content {
  background: var(--accent-soft);
  border-color: var(--accent);
}

.message-content p {
  margin: 0 0 8px;
}

.message-content p:last-child {
  margin-bottom: 0;
}

.message-content img {
  max-width: 100%;
  max-height: 400px;
  border-radius: 12px;
  margin-top: 8px;
  display: block;
  object-fit: contain;
}

.message-content img {
  max-width: 100%;
  max-height: 400px;
  border-radius: 12px;
  margin-top: 8px;
  display: block;
  object-fit: contain;
}

.message-sources {
  margin-top: 12px;
  padding: 12px;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 8px;
  border-left: 3px solid var(--accent);
}

.message-sources-title {
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: lowercase;
  color: var(--accent);
  margin: 0 0 8px;
  letter-spacing: 0.02em;
}

.message-sources-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.message-source-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  text-decoration: none;
  transition: all 0.2s ease;
  cursor: pointer;
}

.message-source-link:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--accent);
  transform: translateX(4px);
}

.source-favicon {
  width: 20px;
  height: 20px;
  border-radius: 4px;
  flex-shrink: 0;
}

.source-info {
  flex: 1;
  min-width: 0;
}

.source-title {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 2px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.source-domain {
  font-size: 0.7rem;
  color: var(--muted);
  opacity: 0.8;
}

.message-content code {
  background: rgba(0, 0, 0, 0.3);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: 'Courier New', monospace;
  font-size: 0.9em;
}

.message-content pre {
  background: rgba(0, 0, 0, 0.3);
  padding: 12px;
  border-radius: 8px;
  overflow-x: auto;
  margin: 8px 0;
}

.message-content pre code {
  background: none;
  padding: 0;
}

.typing-indicator {
  display: flex;
  gap: 4px;
  padding: 12px;
}

.typing-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: typingBounce 1.4s infinite;
}

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

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

@keyframes typingBounce {
  0%, 60%, 100% {
    transform: translateY(0);
  }
  30% {
    transform: translateY(-10px);
  }
}

.chat-input-container {
  padding: 16px 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.image-preview-container {
  display: none;
  flex-wrap: wrap;
  gap: 10px;
  padding: 10px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.image-preview-item {
  position: relative;
  width: 100px;
  height: 100px;
  border-radius: 8px;
  overflow: hidden;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.image-preview-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.image-preview-remove {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(255, 68, 68, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: white;
  font-size: 18px;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  padding: 0;
}

.image-preview-remove:hover {
  background: rgba(255, 68, 68, 1);
  transform: scale(1.1);
}

.chat-input-row {
  display: flex;
  gap: 12px;
  align-items: flex-end;
}

.attach-btn {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  flex-shrink: 0;
  font-size: 1.2rem;
  font-weight: 400;
  line-height: 1;
}

.attach-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.attach-btn:not(:disabled):hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

#chat-input {
  flex: 1;
  padding: 12px 16px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 500;
  font-family: inherit;
  resize: none;
  max-height: 150px;
  transition: all 0.2s ease;
}

#chat-input:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

#chat-input::placeholder {
  color: var(--muted);
}

.send-btn {
  padding: 0 20px;
  height: 44px;
  border-radius: 12px;
  border: none;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: var(--accent-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  flex-shrink: 0;
  font-weight: 800;
  font-size: 0.85rem;
  text-transform: lowercase;
  font-family: inherit;
  letter-spacing: 0.02em;
}

.send-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 8px 16px var(--shadow);
}

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

.modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  z-index: 2000;
  align-items: center;
  justify-content: center;
}

.modal.show {
  display: flex;
}

.personality-modal-content {
  background: linear-gradient(180deg, var(--card) 0%, var(--card-deep) 100%);
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  width: min(500px, 90vw);
  max-height: 80vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 24px 48px var(--shadow);
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(255, 255, 255, 0.02);
}

.modal-header h3 {
  font-size: 1.2rem;
  font-weight: 900;
  text-transform: lowercase;
  margin: 0;
  letter-spacing: 0.02em;
}

.close-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text);
  font-size: 1.5rem;
  cursor: pointer;
  line-height: 1;
  transition: all 0.2s ease;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.close-btn:hover {
  background: rgba(255, 68, 68, 0.15);
  border-color: rgba(255, 68, 68, 0.3);
  color: #ff4444;
}

.modal-body {
  padding: 20px;
  overflow-y: auto;
  flex: 1;
}

.settings-section {
  margin-bottom: 24px;
  padding: 16px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.settings-section:last-child {
  margin-bottom: 0;
}

.section-title {
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: lowercase;
  margin: 0 0 12px;
  color: var(--text);
  letter-spacing: 0.03em;
  opacity: 0.9;
}

.toggle-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.toggle-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 14px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: all 0.2s ease;
}

.toggle-item:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.1);
}

.toggle-info {
  display: flex;
  flex-direction: column;
  gap: 3px;
  flex: 1;
}

.toggle-label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text);
  text-transform: lowercase;
  letter-spacing: 0.01em;
}

.toggle-desc {
  font-size: 0.7rem;
  color: var(--muted);
  line-height: 1.3;
  opacity: 0.8;
}

.toggle-switch {
  position: relative;
  display: inline-block;
  width: 48px;
  height: 26px;
  flex-shrink: 0;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  transition: 0.3s;
  border-radius: 26px;
}

.toggle-slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background: var(--text);
  transition: 0.3s;
  border-radius: 50%;
}

.toggle-switch input:checked + .toggle-slider {
  background: var(--accent);
  border-color: var(--accent);
}

.toggle-switch input:checked + .toggle-slider:before {
  transform: translateX(22px);
  background: var(--accent-text);
}

.personality-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.personality-item {
  padding: 12px 14px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
}

.personality-item:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.12);
  transform: translateX(2px);
}

.personality-item.active {
  background: var(--accent-soft);
  border-color: var(--accent);
}

.personality-item.active:hover {
  background: var(--accent-soft);
  border-color: var(--accent-strong);
}

.personality-info {
  flex: 1;
  min-width: 0;
}

.personality-info h4 {
  font-size: 0.85rem;
  font-weight: 800;
  margin: 0 0 4px;
  text-transform: lowercase;
  color: var(--text);
  letter-spacing: 0.02em;
}

.personality-info p {
  font-size: 0.7rem;
  color: var(--muted);
  margin: 0;
  line-height: 1.35;
  word-wrap: break-word;
  opacity: 0.85;
}

.personality-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

.delete-personality-btn {
  background: rgba(255, 68, 68, 0.1);
  border: 1px solid rgba(255, 68, 68, 0.2);
  color: #ff4444;
  cursor: pointer;
  font-size: 1.4rem;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  line-height: 1;
  padding: 0;
}

.delete-personality-btn:hover {
  background: rgba(255, 68, 68, 0.2);
  border-color: rgba(255, 68, 68, 0.4);
  transform: scale(1.05);
}

.personality-form {
  padding-top: 0;
  border-top: none;
}

.personality-form input,
.personality-form textarea {
  width: 100%;
  padding: 12px 16px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  font-size: 0.9rem;
  font-family: inherit;
  margin-bottom: 12px;
  transition: all 0.2s ease;
}

.personality-form input::placeholder,
.personality-form textarea::placeholder {
  color: var(--muted);
  opacity: 0.7;
}

.personality-form input:focus,
.personality-form textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.personality-form textarea {
  resize: vertical;
  min-height: 100px;
  line-height: 1.5;
}

.save-personality-btn {
  width: 100%;
  padding: 12px;
  border-radius: 12px;
  border: none;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: var(--accent-text);
  font-weight: 800;
  font-size: 0.9rem;
  text-transform: lowercase;
  cursor: pointer;
  font-family: inherit;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.save-personality-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 16px var(--shadow);
}

@media (max-width: 768px) {
  .chat-container {
    flex-direction: column;
    height: auto;
  }

  .chat-sidebar {
    width: 100%;
    height: auto;
    max-height: 200px;
  }

  .chat-main {
    height: calc(100vh - 400px);
    min-height: 500px;
  }

  .message {
    max-width: 95%;
  }
}

/* Enhanced Code Blocks */
.code-block-wrapper {
  margin: 16px 0;
  border-radius: 12px;
  overflow: hidden;
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.code-block-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 14px;
  background: rgba(0, 0, 0, 0.4);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.code-block-language {
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--accent-strong);
  letter-spacing: 0.08em;
}

.code-copy-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: lowercase;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
}

.code-copy-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.code-copy-btn:active {
  transform: translateY(0);
}

.code-copy-btn svg {
  flex-shrink: 0;
  width: 14px;
  height: 14px;
}

.code-block-wrapper pre {
  margin: 0;
  padding: 16px;
  overflow-x: auto;
  background: transparent;
}

.code-block-wrapper pre::-webkit-scrollbar {
  height: 8px;
}

.code-block-wrapper pre::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.2);
  border-radius: 4px;
}

.code-block-wrapper pre::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.2);
  border-radius: 4px;
}

.code-block-wrapper pre::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.3);
}

.code-block-wrapper code {
  font-family: 'Fira Code', 'Consolas', 'Monaco', 'Courier New', monospace;
  font-size: 0.875rem;
  line-height: 1.7;
  color: #e8e8e8;
  display: block;
}

.inline-code {
  padding: 3px 8px;
  border-radius: 6px;
  background: rgba(168, 85, 247, 0.15);
  color: var(--accent-strong);
  font-family: 'Fira Code', 'Consolas', 'Monaco', 'Courier New', monospace;
  font-size: 0.9em;
  border: 1px solid rgba(168, 85, 247, 0.25);
  font-weight: 600;
}

/* Thinking Block */
.thinking-details {
  margin: 12px 0;
  border-radius: 12px;
  background: rgba(168, 85, 247, 0.08);
  border: 1px solid rgba(168, 85, 247, 0.2);
  overflow: hidden;
}

.thinking-summary {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-strong);
  text-transform: lowercase;
  list-style: none;
  user-select: none;
  transition: background 0.2s ease;
}

.thinking-summary::-webkit-details-marker {
  display: none;
}

.thinking-summary:hover {
  background: rgba(168, 85, 247, 0.12);
}

.thinking-summary svg {
  flex-shrink: 0;
  transition: transform 0.3s ease;
}

.thinking-details[open] .thinking-summary svg {
  transform: rotate(180deg);
}

.thinking-content {
  padding: 14px;
  border-top: 1px solid rgba(168, 85, 247, 0.15);
  font-size: 0.9rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.85);
  background: rgba(0, 0, 0, 0.2);
}

/* Sources Section */
.message-sources {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.message-sources-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 10px;
}

.message-sources-header svg {
  flex-shrink: 0;
  opacity: 0.7;
}

.message-sources-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.message-source-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  text-decoration: none;
  color: var(--text);
  transition: all 0.2s ease;
  position: relative;
}

.message-source-link:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.16);
  transform: translateX(4px);
}

.source-favicon {
  width: 20px;
  height: 20px;
  border-radius: 4px;
  flex-shrink: 0;
  object-fit: contain;
  background: rgba(255, 255, 255, 0.05);
  padding: 2px;
}

.source-info {
  flex: 1;
  min-width: 0;
}

.source-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 2px;
}

.source-domain {
  font-size: 0.75rem;
  color: var(--muted);
  font-weight: 500;
}

.source-copy-btn {
  padding: 6px 8px;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.05);
  color: var(--muted);
  font-size: 0.7rem;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 4px;
  opacity: 0;
  font-family: inherit;
}

.message-source-link:hover .source-copy-btn {
  opacity: 1;
}

.source-copy-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--text);
}

.source-copy-btn svg {
  flex-shrink: 0;
}

/* Better list formatting */
.message-content ul {
  margin: 8px 0;
  padding-left: 20px;
  list-style: none;
}

.message-content ul li {
  position: relative;
  margin: 6px 0;
  padding-left: 8px;
  line-height: 1.6;
}

.message-content ul li::before {
  content: '•';
  position: absolute;
  left: -12px;
  color: var(--accent);
  font-weight: bold;
}

/* Responsive adjustments */
@media (max-width: 900px) {
  .code-block-wrapper code {
    font-size: 0.8rem;
  }
  
  .thinking-summary {
    font-size: 0.8rem;
  }
  
  .thinking-content {
    font-size: 0.85rem;
  }
  
  .source-title {
    font-size: 0.8rem;
  }
  
  .source-domain {
    font-size: 0.7rem;
  }
}

/* Chat Settings Button */
.chat-settings-btn {
  padding: 8px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  cursor: pointer;
  transition: all 0.2s ease;
  margin-left: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.chat-settings-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-1px);
}

.chat-settings-btn img {
  flex-shrink: 0;
  filter: brightness(0) invert(1);
  opacity: 0.9;
  transition: opacity 0.2s ease;
}

.chat-settings-btn:hover img {
  opacity: 1;
}

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

.chat-features-status {
  display: flex;
  align-items: center;
  gap: 8px;
}

.feature-badge {
  display: flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: 8px;
  background: rgba(168, 85, 247, 0.12);
  border: 1px solid rgba(168, 85, 247, 0.25);
  color: var(--accent-strong);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: lowercase;
  letter-spacing: 0.03em;
}

/* Settings Dropdown Modal */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  z-index: 2000;
  padding: 80px 20px 20px;
}

.settings-dropdown {
  width: min(420px, 90vw);
  background: linear-gradient(180deg, var(--card) 0%, var(--card-deep) 100%);
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.05);
  overflow: hidden;
  animation: dropdownSlide 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes dropdownSlide {
  from {
    opacity: 0;
    transform: translateY(-20px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.settings-dropdown-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(0, 0, 0, 0.2);
}

.settings-dropdown-header h3 {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 800;
  text-transform: lowercase;
  letter-spacing: 0.02em;
}

.close-btn {
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  padding: 4px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  transition: all 0.2s ease;
}

.close-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
}

.close-btn svg {
  flex-shrink: 0;
}

.settings-dropdown-body {
  padding: 8px;
}

.settings-option {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  margin-bottom: 8px;
  transition: all 0.2s ease;
}

.settings-option:last-child {
  margin-bottom: 0;
}

.settings-option:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.12);
}

.settings-option-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}

.settings-option-label {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text);
  text-transform: lowercase;
  letter-spacing: 0.01em;
}

.settings-option-desc {
  font-size: 0.75rem;
  color: var(--muted);
  font-weight: 500;
  line-height: 1.4;
}

.toggle-switch {
  position: relative;
  display: inline-block;
  width: 48px;
  height: 26px;
  flex-shrink: 0;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(255, 255, 255, 0.15);
  transition: 0.3s;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.toggle-slider:before {
  position: absolute;
  content: "";
  height: 20px;
  width: 20px;
  left: 2px;
  bottom: 2px;
  background-color: white;
  transition: 0.3s;
  border-radius: 50%;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

.toggle-switch input:checked + .toggle-slider {
  background-color: var(--accent);
  border-color: var(--accent);
}

.toggle-switch input:checked + .toggle-slider:before {
  transform: translateX(22px);
}

.toggle-switch:hover .toggle-slider {
  background-color: rgba(255, 255, 255, 0.2);
}

.toggle-switch input:checked:hover + .toggle-slider {
  background-color: var(--accent-strong);
}

/* Attach Button */
.attach-btn {
  padding: 10px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.attach-btn:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-1px);
}

.attach-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.attach-btn svg {
  flex-shrink: 0;
}