/* ==========================================================================
   CHAT EDGE MACHINE - DESIGN PREMIUM
   ========================================================================== */

:root {
  /* Cores principais */
  --bg-primary: #0a0a0a;
  --bg-secondary: #121212;
  --bg-tertiary: #1e1e1e;
  --text-primary: #ffffff;
  --text-secondary: #b0b0b0;
  --accent: #FFD700;
  --accent-light: #FFE44D;
  --accent-dark: #D4AF37;
  --black: #000000;
  --white: #ffffff;
  
  /* Efeitos e formas */
  --border-radius: 12px;
  --border-radius-sm: 8px;
  --box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Cores de status */
  --success: #4CAF50;
  --error: #F44336;
  --warning: #FFC107;
  --info: #2196F3;
  
  /* Tipografia */
  --font-main: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'Courier New', Courier, monospace;
}

/* ==========================================================================
   ESTRUTURA PRINCIPAL
   ========================================================================== */

.ia-chat-section {
  padding: 4rem 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  background: 
    radial-gradient(ellipse at 20% 20%, rgba(255, 215, 0, 0.05) 0%, transparent 60%),
    linear-gradient(to bottom, var(--bg-primary), var(--bg-secondary));
  position: relative;
  overflow: hidden;
}

/* Efeito de partículas douradas no fundo */
.ia-chat-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 30%, rgba(255, 215, 0, 0.03) 0%, transparent 20%),
    radial-gradient(circle at 80% 70%, rgba(255, 215, 0, 0.03) 0%, transparent 20%);
  pointer-events: none;
  z-index: 0;
}

/* ==========================================================================
   CABEÇALHO DO CHAT
   ========================================================================== */

.chat-app-header {
  width: 90%;
  max-width: 1000px;
  background: linear-gradient(135deg, rgba(18,18,18,0.95), rgba(30,30,30,0.95));
  padding: 1.5rem 2rem;
  margin-bottom: -1px;
  border-radius: var(--border-radius) var(--border-radius) 0 0;
  border: 1px solid rgba(255, 215, 0, 0.2);
  border-bottom: none;
  box-shadow: var(--box-shadow);
  display: flex;
  justify-content: center;
  position: relative;
  z-index: 2;
  backdrop-filter: blur(10px);
  transition: var(--transition);
}

.chat-app-header:hover {
  border-color: rgba(255, 215, 0, 0.3);
  box-shadow: 0 8px 40px rgba(255, 215, 0, 0.1);
}

.chat-header-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 0.75rem;
  width: 100%;
}

.chat-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--accent);
  box-shadow: 0 0 30px rgba(255, 215, 0, 0.5);
  transition: var(--transition);
  margin-bottom: 0.5rem;
  background: rgba(0,0,0,0.3);
  padding: 5px;
}

.chat-avatar:hover {
  transform: scale(1.1) rotate(5deg);
  box-shadow: 0 0 40px rgba(255, 215, 0, 0.7);
  filter: brightness(1.1);
}

.chat-app-header h1 {
  font-size: 2rem;
  font-weight: 700;
  background: linear-gradient(to right, var(--accent), var(--accent-light));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin: 0;
  padding: 0;
  line-height: 1.2;
  letter-spacing: 0.5px;
  text-shadow: 0 2px 15px rgba(255, 215, 0, 0.3);
  font-family: var(--font-main);
}

.chat-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  margin: 0;
  padding: 0;
  line-height: 1.5;
  font-weight: 400;
  opacity: 0.9;
  max-width: 80%;
  font-family: var(--font-main);
}

/* ==========================================================================
   CONTAINER PRINCIPAL DO CHAT
   ========================================================================== */

.chat-app-container {
  width: 90%;
  max-width: 1000px;
  height: 75vh;
  min-height: 600px;
  max-height: 800px;
  margin: 0 auto;
  border-radius: 0 0 var(--border-radius) var(--border-radius);
  overflow: hidden;
  box-shadow: var(--box-shadow);
  background: rgba(24, 24, 24, 0.85);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 215, 0, 0.2);
  position: relative;
  animation: fadeIn 0.6s ease-out;
  display: flex;
  flex-direction: column;
  z-index: 1;
  transition: var(--transition);
}

.chat-app-container:hover {
  border-color: rgba(255, 215, 0, 0.3);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
}

/* Efeito de brilho no topo do container */
.chat-app-container::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(to right, transparent, var(--accent), transparent);
  pointer-events: none;
  z-index: 2;
  opacity: 0.5;
}

/* ==========================================================================
   ÁREA DE MENSAGENS
   ========================================================================== */

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 2rem;
  background: rgba(18,18,18,0.8);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  scrollbar-width: thin;
  scrollbar-color: var(--accent) transparent;
  position: relative;
}

/* Personalização da barra de rolagem */
.chat-messages::-webkit-scrollbar {
  width: 8px;
}

.chat-messages::-webkit-scrollbar-track {
  background: rgba(0,0,0,0.1);
  border-radius: 10px;
}

.chat-messages::-webkit-scrollbar-thumb {
  background: var(--accent);
  border-radius: 10px;
  border: 2px solid rgba(0,0,0,0.2);
}

.chat-messages::-webkit-scrollbar-thumb:hover {
  background: var(--accent-light);
}

/* ==========================================================================
   ESTILOS DAS MENSAGENS
   ========================================================================== */

.chat-message {
  max-width: 85%;
  padding: 1.25rem 1.5rem;
  border-radius: var(--border-radius);
  position: relative;
  animation: messageAppear 0.35s ease-out;
  line-height: 1.7;
  font-size: 1.05rem;
  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
  border: 1px solid transparent;
  transition: var(--transition);
  opacity: 0.98;
  font-family: var(--font-main);
}

.chat-message:hover {
  opacity: 1;
  transform: translateY(-2px);
}

@keyframes messageAppear {
  from { opacity: 0; transform: translateY(10px) scale(0.95); }
  to { opacity: 0.98; transform: translateY(0) scale(1); }
}

/* Mensagem do bot */
.bot-message {
  align-self: flex-start;
  background: linear-gradient(135deg, rgba(30,30,30,0.95), rgba(40,40,40,0.95));
  color: var(--text-primary);
  border: 1px solid rgba(255,255,255,0.1);
  backdrop-filter: blur(8px);
  border-top-left-radius: 4px;
}

.bot-message::before {
  content: '';
  position: absolute;
  left: -10px;
  top: 20px;
  width: 0;
  height: 0;
  border-top: 10px solid transparent;
  border-bottom: 10px solid transparent;
  border-right: 10px solid rgba(30,30,30,0.95);
  filter: drop-shadow(-2px 0 2px rgba(0,0,0,0.2));
}

/* Mensagem do usuário */
.user-message {
  align-self: flex-end;
  background: linear-gradient(135deg, rgba(255,215,0,0.2), rgba(255,215,0,0.1));
  color: var(--text-primary);
  font-weight: 500;
  border: 1px solid rgba(255,215,0,0.3);
  backdrop-filter: blur(8px);
  border-top-right-radius: 4px;
}

.user-message::after {
  content: '';
  position: absolute;
  right: -10px;
  top: 20px;
  width: 0;
  height: 0;
  border-top: 10px solid transparent;
  border-bottom: 10px solid transparent;
  border-left: 10px solid rgba(255,215,0,0.2);
  filter: drop-shadow(2px 0 2px rgba(0,0,0,0.2));
}

/* Mensagens de sistema/status */
.system-message {
  align-self: center;
  background: rgba(30,30,30,0.8);
  color: var(--text-secondary);
  border: 1px solid rgba(255,255,255,0.05);
  font-size: 0.9rem;
  padding: 0.75rem 1.5rem;
  max-width: 70%;
  text-align: center;
  border-radius: 50px;
}

.success-message {
  background: rgba(76,175,80,0.15);
  border-color: rgba(76,175,80,0.3);
  color: #a5d6a7;
}

.error-message {
  background: rgba(244,67,54,0.15);
  border-color: rgba(244,67,54,0.3);
  color: #ff9e80;
}

.warning-message {
  background: rgba(255,193,7,0.15);
  border-color: rgba(255,193,7,0.3);
  color: #ffe082;
}

.info-message {
  background: rgba(33,150,243,0.15);
  border-color: rgba(33,150,243,0.3);
  color: #90caf9;
}

/* ==========================================================================
   CONTEÚDO DAS MENSAGENS
   ========================================================================== */

.message-content {
  word-wrap: break-word;
  line-height: 1.7;
}

.message-content a {
  color: var(--accent-light);
  text-decoration: none;
  border-bottom: 1px dashed rgba(255,215,0,0.4);
  transition: var(--transition);
  font-weight: 500;
  padding-bottom: 1px;
}

.message-content a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
  text-shadow: 0 0 10px rgba(255,215,0,0.3);
}

.message-content code {
  background: rgba(0,0,0,0.3);
  padding: 0.2rem 0.4rem;
  border-radius: var(--border-radius-sm);
  font-family: var(--font-mono);
  font-size: 0.9em;
  color: #f8bbd0;
}

.message-content pre {
  background: rgba(0,0,0,0.3);
  padding: 1rem;
  border-radius: var(--border-radius-sm);
  overflow-x: auto;
  margin: 0.5rem 0;
  border-left: 3px solid var(--accent);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.5;
}

.message-content blockquote {
  border-left: 3px solid var(--accent);
  padding-left: 1rem;
  margin: 1rem 0;
  color: var(--text-secondary);
  font-style: italic;
}

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

.message-content li {
  margin-bottom: 0.5rem;
}

.message-time {
  display: block;
  font-size: 0.7rem;
  margin-top: 0.8rem;
  text-align: right;
  opacity: 0.6;
  font-weight: 300;
  transition: var(--transition);
  font-family: var(--font-main);
}

.chat-message:hover .message-time {
  opacity: 0.9;
}

/* ==========================================================================
   ÁREA DE INPUT
   ========================================================================== */

.chat-input-container {
  display: flex;
  gap: 0.75rem;
  padding: 1.5rem;
  background: rgba(20,20,20,0.95);
  border-top: 1px solid rgba(255,215,0,0.15);
  position: sticky;
  bottom: 0;
  z-index: 1;
  backdrop-filter: blur(8px);
}

#user-input {
  flex: 1;
  padding: 1rem 1.5rem;
  border: none;
  border-radius: 50px;
  font-size: 1rem;
  background: rgba(40,40,40,0.9);
  color: var(--text-primary);
  transition: var(--transition);
  backdrop-filter: blur(6px);
  box-shadow: inset 0 2px 10px rgba(0,0,0,0.3);
  border: 1px solid rgba(255,255,255,0.05);
  font-family: var(--font-main);
}

#user-input:focus {
  box-shadow: 
    inset 0 2px 15px rgba(0,0,0,0.4),
    0 0 0 3px rgba(255,215,0,0.3);
  background: rgba(50,50,50,0.95);
  outline: none;
  border-color: rgba(255,215,0,0.4);
}

#user-input::placeholder {
  color: rgba(255,255,255,0.5);
  font-weight: 300;
}

/* ==========================================================================
   BOTÕES
   ========================================================================== */

#send-button, #reset-button {
  padding: 1rem 1.75rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  cursor: pointer;
  border: none;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  position: relative;
  overflow: hidden;
  font-family: var(--font-main);
  min-width: 140px;
}

#send-button {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: var(--black);
  box-shadow: 0 4px 20px rgba(255,215,0,0.4);
}

#send-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: 0.5s;
}

#send-button:hover::before {
  left: 100%;
}

#send-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(255,215,0,0.6);
}

#reset-button {
  background: rgba(40,40,40,0.9);
  color: var(--accent);
  border: 1px solid rgba(255,215,0,0.4);
  backdrop-filter: blur(6px);
}

#reset-button:hover {
  background: rgba(255,215,0,0.15);
  border-color: var(--accent);
  color: var(--accent-light);
}

/* ==========================================================================
   INDICADOR DE DIGITAÇÃO
   ========================================================================== */

.typing-indicator {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.5rem;
  background: rgba(40,40,40,0.9);
  border-radius: 50px;
  width: fit-content;
  margin-left: 1rem;
  font-size: 0.85rem;
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255,255,255,0.15);
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

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

.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); opacity: 0.6; }
  30% { transform: translateY(-5px); opacity: 1; }
}

/* ==========================================================================
   RODAPÉ DO CHAT
   ========================================================================== */

.chat-app-footer {
  background: rgba(15,15,15,0.95);
  color: var(--text-secondary);
  text-align: center;
  padding: 1rem;
  font-size: 0.7rem;
  letter-spacing: 0.5px;
  border-top: 1px solid rgba(255,215,0,0.1);
  backdrop-filter: blur(8px);
  font-family: var(--font-main);
}

.chat-app-footer p {
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.chat-app-footer .accent {
  color: var(--accent);
  font-weight: 700;
}

/* ==========================================================================
   ANIMAÇÕES
   ========================================================================== */

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

/* ==========================================================================
   RESPONSIVIDADE
   ========================================================================== */

@media (max-width: 768px) {
  .ia-chat-section {
    padding: 2rem 0;
  }
  
  .chat-app-header,
  .chat-app-container {
    width: 95%;
    border-radius: 0;
  }
  
  .chat-app-header {
    padding: 1.25rem 1rem;
    border-radius: 12px 12px 0 0;
  }
  
  .chat-avatar {
    width: 60px;
    height: 60px;
  }
  
  .chat-app-header h1 {
    font-size: 1.6rem;
  }
  
  .chat-subtitle {
    font-size: 0.85rem;
    max-width: 90%;
  }
  
  .chat-messages {
    padding: 1.5rem 1rem;
    gap: 1rem;
  }
  
  .chat-input-container {
    flex-direction: column;
    padding: 1.25rem;
    gap: 0.75rem;
  }
  
  #send-button, #reset-button {
    width: 100%;
    justify-content: center;
    padding: 1rem;
  }
  
  .chat-message {
    max-width: 90%;
    padding: 1rem 1.25rem;
    font-size: 0.95rem;
  }
}

@media (min-width: 1600px) {
  .chat-app-container {
    height: 70vh;
    max-height: 900px;
  }
  
  .chat-messages {
    padding: 2.5rem;
  }
}

/* ==========================================================================
   EFEITOS ESPECIAIS
   ========================================================================== */

/* Efeito de brilho sutil nos elementos */
.chat-avatar, #send-button, #reset-button, .user-message {
  filter: brightness(1);
  transition: filter 0.3s ease;
}

.chat-avatar:hover, #send-button:hover, #reset-button:hover, .user-message:hover {
  filter: brightness(1.1);
}

/* Efeito de gradiente sutil no container */
.chat-app-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 60px;
  background: linear-gradient(to bottom, rgba(255,215,0,0.1), transparent);
  pointer-events: none;
  z-index: -1;
}

/* Efeito de hover para mensagens */
@media (hover: hover) {
  .chat-message {
    transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
  }
  
  .chat-message:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.3);
    opacity: 1;
  }
  
  #send-button:hover {
    transform: translateY(-3px) scale(1.02);
  }
}

/* ==========================================================================
   SUGESTÕES DE MENSAGEM
   ========================================================================== */

.suggestions-container {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 1rem;
  padding: 0.5rem;
}

.suggestion-button {
  background: rgba(40,40,40,0.9);
  color: var(--text-primary);
  border: 1px solid rgba(255,215,0,0.3);
  border-radius: 50px;
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  cursor: pointer;
  transition: var(--transition);
  backdrop-filter: blur(6px);
  font-family: var(--font-main);
}

.suggestion-button:hover {
  background: rgba(255,215,0,0.15);
  border-color: var(--accent);
  color: var(--accent-light);
  transform: translateY(-2px);
}