/* ==========================================================================
   CHAT DEEPSEEK-STYLE - DESIGN APERFEIÇOADO
   ========================================================================== */

:root {
  --bg-primary: #0f0f0f;
  --bg-secondary: #181818;
  --bg-tertiary: #222222;
  --text-primary: #f0f0f0;
  --text-secondary: #b0b0b0;
  --accent: #FFD700;
  --accent-light: #FFE55C;
  --accent-dark: #D4AF37;
  --black: #000000;
  --border-radius: 12px;
  --box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --success: #4CAF50;
  --error: #F44336;
  --warning: #FFC107;
}

/* Estrutura Principal - Melhorias */
.ia-chat-section {
  padding: 2rem 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  background: 
    radial-gradient(ellipse at 20% 20%, rgba(252,192,0,0.05) 0%, transparent 60%),
    linear-gradient(to bottom, #0a0a0a, #131313);
  position: relative;
  overflow: hidden;
}

/* Efeito de partículas de fundo */
.ia-chat-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 30%, rgba(252,192,0,0.02) 0%, transparent 20%),
    radial-gradient(circle at 80% 70%, rgba(252,192,0,0.02) 0%, transparent 20%);
  pointer-events: none;
  z-index: 0;
}

/* Header do Chat - Aprimorado */
.chat-app-header {
  width: 90%;
  max-width: 1000px;
  background: linear-gradient(to right, rgba(15,15,15,0.95), 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(252,192,0,0.2);
  border-bottom: none;
  box-shadow: var(--box-shadow);
  display: flex;
  justify-content: center;
  position: relative;
  z-index: 2;
  backdrop-filter: blur(8px);
}

.chat-header-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 0.5rem;
  width: 100%;
}

.chat-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--accent);
  box-shadow: 0 0 25px rgba(252,192,0,0.4);
  transition: var(--transition);
  margin-bottom: 0.5rem;
  background: rgba(0,0,0,0.3);
  padding: 4px;
}

.chat-avatar:hover {
  transform: scale(1.1) rotate(5deg);
  box-shadow: 0 0 35px rgba(252,192,0,0.6);
  filter: brightness(1.1);
}

.chat-app-header h1 {
  font-size: 1.85rem;
  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 10px rgba(252,192,0,0.2);
}

.chat-subtitle {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin: 0;
  padding: 0;
  line-height: 1.4;
  font-weight: 400;
  opacity: 0.9;
  max-width: 80%;
}

/* Container do Chat - Aprimorado */
.chat-app-container {
  width: 90%;
  max-width: 1000px;
  height: 80vh;
  min-height: 700px;
  max-height: 900px;
  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, 0.8);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(252,192,0,0.2);
  position: relative;
  animation: fadeIn 0.6s ease-out;
  display: flex;
  flex-direction: column;
  z-index: 1;
}

/* Área de Mensagens - Melhorias */
.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 2rem;
  background: rgba(18,18,18,0.7);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  scrollbar-width: thin;
  scrollbar-color: var(--accent) transparent;
  position: relative;
}

.chat-messages::-webkit-scrollbar {
  width: 10px;
}

.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);
}

/* Mensagens - Design Aprimorado */
.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: 1.6;
  font-size: 1.05rem;
  box-shadow: 0 4px 15px rgba(0,0,0,0.15);
  border: 1px solid transparent;
  transition: var(--transition);
  opacity: 0.98;
}

.chat-message:hover {
  opacity: 1;
}

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

.bot-message {
  align-self: flex-start;
  background: linear-gradient(135deg, rgba(40,40,40,0.9), rgba(30,30,30,0.9));
  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(40,40,40,0.9);
  filter: drop-shadow(-2px 0 2px rgba(0,0,0,0.2));
}

.user-message {
  align-self: flex-end;
  background: linear-gradient(135deg, rgba(252,192,0,0.25), rgba(252,192,0,0.15));
  color: var(--text-primary);
  font-weight: 500;
  border: 1px solid rgba(252,192,0,0.3);
  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(252,192,0,0.25);
  filter: drop-shadow(2px 0 2px rgba(0,0,0,0.2));
}

/* Mensagens de sistema/status */
.system-message {
  align-self: center;
  background: rgba(30,30,30,0.7);
  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;
}

.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;
}

.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(252,192,0,0.4);
  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 8px rgba(252,192,0,0.3);
}

.message-content code {
  background: rgba(0,0,0,0.3);
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-family: monospace;
  font-size: 0.9em;
  color: #f8bbd0;
}

.message-content pre {
  background: rgba(0,0,0,0.3);
  padding: 1rem;
  border-radius: 8px;
  overflow-x: auto;
  margin: 0.5rem 0;
  border-left: 3px solid var(--accent);
}

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

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

/* Área de Input - Aprimorada */
.chat-input-container {
  display: flex;
  gap: 0.75rem;
  padding: 1.5rem;
  background: rgba(20,20,20,0.95);
  border-top: 1px solid rgba(252,192,0,0.15);
  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);
}

#user-input:focus {
  box-shadow: 
    inset 0 2px 15px rgba(0,0,0,0.4),
    0 0 0 3px rgba(252,192,0,0.3);
  background: rgba(50,50,50,0.95);
  outline: none;
  border-color: rgba(252,192,0,0.4);
}

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

/* Botões - Aprimorados */
#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;
  gap: 0.5rem;
  cursor: pointer;
  border: none;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  position: relative;
  overflow: hidden;
}

#send-button {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: var(--black);
  min-width: 120px;
  box-shadow: 0 4px 15px rgba(252,192,0,0.4);
}

#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 25px rgba(252,192,0,0.5);
}

#reset-button {
  background: rgba(40,40,40,0.9);
  color: var(--accent);
  border: 1px solid rgba(252,192,0,0.4);
  min-width: 140px;
  backdrop-filter: blur(6px);
}

#reset-button:hover {
  background: rgba(252,192,0,0.2);
  border-color: var(--accent);
  color: var(--accent-light);
}

/* Indicador de Digitação - Aprimorado */
.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 - Aprimorado */
.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(252,192,0,0.1);
  backdrop-filter: blur(8px);
}

.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;
}

/* Efeitos Especiais */
@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(0,0,0,0.25);
    opacity: 1;
  }
  
  #send-button:hover {
    transform: translateY(-3px) scale(1.02);
  }
}

/* Animações Aprimoradas */
@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 - Aprimorada */
@media (max-width: 768px) {
  .ia-chat-section {
    padding: 1rem 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;
  }
}

@media (min-width: 1600px) {
  .chat-app-container {
    height: 75vh;
    max-height: 1000px;
  }
  
  .chat-messages {
    padding: 2.5rem;
  }
}

/* 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::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 60px;
  background: linear-gradient(to bottom, rgba(252,192,0,0.1), transparent);
  pointer-events: none;
  z-index: -1;
}