/**
 * ai-chat.css
 * Estilos para o widget de chat do Assistente IA
 * Padronizado com Design Tokens (variables.css)
 */

/* ========== Container Principal ========== */
.ai-chat-widget {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: var(--z-popover); /* 1070 */
  font-family: var(--font-family-base);
}

/* ========== Botão Flutuante (FAB) ========== */
.ai-chat-fab {
  position: relative;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--primary);
  /* Opção com gradiente sutil usando cores da marca se desejado, 
     mas mantendo a base na cor primária */
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
  border: none;
  color: var(--text-inverse);
  font-size: 24px;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-base);
  display: flex;
  align-items: center;
  justify-content: center;
}

.ai-chat-fab:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-xl);
}

.ai-chat-fab:active {
  transform: scale(0.95);
}

/* Animação de pulso */
.ai-chat-fab-pulse {
  animation: pulse 1s infinite;
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
    box-shadow: 0 0 0 10px rgba(0, 57, 186, 0.2); /* Baseado na Primary */
  }
}

/* Badge de notificações */
.ai-chat-badge {
  position: absolute;
  top: -5px;
  right: -5px;
  background-color: var(--danger);
  color: var(--text-inverse);
  border-radius: 10px;
  padding: 2px 6px;
  font-size: 11px;
  font-weight: bold;
  min-width: 20px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}

/* ========== Container do Chat ========== */
.ai-chat-container {
  position: fixed;
  bottom: 90px;
  right: 20px;
  width: 380px;
  max-width: calc(100vw - 40px);
  height: 600px;
  max-height: calc(100vh - 120px);
  background: var(--bg-surface);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: all var(--transition-base);
  border: 1px solid var(--border-color);
}

.ai-chat-container.minimized {
  height: 60px;
  overflow: hidden;
}

/* ========== Header ========== */
.ai-chat-header {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
  color: var(--text-inverse);
  padding: var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

.ai-chat-header h6 {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  margin: 0;
}

.ai-chat-header small {
  font-size: var(--font-size-xs);
  opacity: 0.9;
}

.ai-chat-header .btn-link {
  color: var(--text-inverse);
  text-decoration: none;
  font-size: 18px;
  padding: 4px;
  line-height: 1;
  transition: opacity var(--transition-fast);
}

.ai-chat-header .btn-link:hover {
  opacity: 0.8;
}

/* ========== Quick Actions ========== */
.ai-chat-quick-actions {
  padding: 12px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  background: var(--gray-50);
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.ai-chat-quick-actions .btn {
  font-size: var(--font-size-xs);
  padding: 4px 10px;
  white-space: nowrap;
}

/* ========== Messages Container ========== */
.ai-chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-md);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  background: var(--bg-surface);
}

/* Scrollbar customizada */
.ai-chat-messages::-webkit-scrollbar {
  width: 6px;
}

.ai-chat-messages::-webkit-scrollbar-track {
  background: transparent;
}

.ai-chat-messages::-webkit-scrollbar-thumb {
  background: var(--gray-300);
  border-radius: 3px;
}

.ai-chat-messages::-webkit-scrollbar-thumb:hover {
  background: var(--gray-400);
}

/* ========== Mensagens ========== */
.ai-chat-message {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  animation: messageSlideIn 0.3s ease;
}

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

/* Mensagem do Usuário */
.ai-chat-message.user-message {
  flex-direction: row-reverse;
}

.ai-chat-message.user-message .ai-message-content {
  background: var(--primary);
  color: var(--text-inverse);
  border-radius: 18px 18px 4px 18px;
}

/* Mensagem do Assistente */
.ai-chat-message.ai-message .ai-message-content {
  background: var(--gray-100);
  color: var(--text-primary);
  border-radius: 18px 18px 18px 4px;
}

/* Avatar */
.ai-message-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--text-inverse);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.user-message .ai-message-avatar {
  background: var(--success); /* Diferenciar usuário */
}

/* Conteúdo da Mensagem */
.ai-message-content {
  padding: 12px 16px;
  max-width: 75%;
  word-wrap: break-word;
  box-shadow: var(--shadow-sm);
}

.ai-message-content strong {
  display: block;
  font-size: var(--font-size-xs);
  margin-bottom: 4px;
  opacity: 0.8;
}

.ai-message-content p {
  margin: 0;
  font-size: var(--font-size-sm);
  line-height: var(--line-height-normal);
}

.ai-message-content ul {
  margin: 8px 0 0 0;
  padding-left: 20px;
}

.ai-message-content li {
  margin: 4px 0;
  font-size: var(--font-size-sm);
}

/* Sugestões */
.ai-message-suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}

.ai-message-suggestions .btn {
  font-size: var(--font-size-xs);
  padding: 4px 10px;
  border-radius: 12px;
  transition: all var(--transition-fast);
}

.ai-message-suggestions .btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

/* ========== Typing Indicator ========== */
.ai-chat-typing {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 0 16px 16px;
  animation: messageSlideIn 0.3s ease;
}

.ai-typing-indicator {
  display: flex;
  gap: 4px;
  padding: 12px 16px;
  background: var(--gray-100);
  border-radius: 18px;
}

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

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

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

/* ========== Input ========== */
.ai-chat-input {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  flex-shrink: 0;
}

.ai-chat-input textarea {
  flex: 1;
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 10px 16px;
  font-size: var(--font-size-sm);
  resize: none;
  max-height: 120px;
  min-height: 40px;
  background: var(--bg-surface);
  color: var(--text-primary);
}

.ai-chat-input .btn {
  border-radius: 50%;
  width: 40px;
  height: 40px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.ai-chat-input .btn-light {
  background: var(--gray-100);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.ai-chat-input .btn-light:hover {
  background: var(--gray-200);
  transform: scale(1.05);
}

.ai-chat-input textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 57, 186, 0.1);
}

/* ========== Footer ========== */
.ai-chat-footer {
  padding: 8px 16px;
  background: var(--gray-50);
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-shrink: 0;
}

.ai-chat-footer small {
  font-size: 11px;
  color: var(--text-muted);
}

.ai-chat-footer .btn-link {
  font-size: 11px;
  text-decoration: none;
  color: var(--primary);
}

.ai-chat-footer .btn-link:hover {
  text-decoration: underline;
}

/* ========== Responsive ========== */
@media (max-width: 480px) {
  .ai-chat-widget {
    bottom: 10px;
    right: 10px;
  }

  .ai-chat-container {
    bottom: 80px;
    right: 10px;
    left: 10px;
    width: auto;
    height: 500px;
  }

  .ai-chat-fab {
    width: 50px;
    height: 50px;
    font-size: 20px;
  }

  .ai-message-content {
    max-width: 85%;
  }
}

/* ========== Acessibilidade ========== */
.ai-chat-fab:focus,
.ai-chat-input textarea:focus,
.ai-chat-input button:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  .ai-chat-fab,
  .ai-chat-container,
  .ai-chat-message,
  .ai-message-suggestions .btn {
    transition: none;
    animation: none;
  }

  .ai-typing-indicator span {
    animation: none;
  }
}

/* ========== Estados de Loading ========== */
.ai-chat-loading {
  opacity: 0.6;
  pointer-events: none;
}