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

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: transparent;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.container {
  width: 100%;
  max-width: 800px;
  height: 90vh;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 20px;
  box-shadow: 0px 20px 40px rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  backdrop-filter: blur(10px);
}

.chat-header {
  background: linear-gradient(135deg, #18009e, #09a5ff);
  color: white;
  padding: 20px;
  text-align: center;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.chat-header h1 {
  font-size: 1.8rem;
  margin-bottom: 5px;
  font-weight: 600;
}

.chat-header p {
  opacity: 0.9;
  font-size: 0.9rem;
}

.chat-container {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 15px;
  background: linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0.9),
    rgba(248, 250, 252, 0.9)
  );
}

.message {
  display: flex;
  max-width: 80%;
  animation: slideIn 0.3s ease-out;
}

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

.user-message {
  align-self: flex-end;
  margin-left: auto;
}

.bot-message {
  align-self: flex-start;
}

.message-content {
  padding: 15px 20px;
  border-radius: 20px;
  word-wrap: break-word;
  line-height: 1.5;
}

.user-message .message-content {
  background: linear-gradient(135deg, #007bff, #0056b3);
  color: white;
  border-bottom-right-radius: 5px;
}

.bot-message .message-content {
  background: linear-gradient(135deg, #f8f9fa, #e9ecef);
  color: #333;
  border: 1px solid #dee2e6;
  border-bottom-left-radius: 5px;
}

.input-container {
  padding: 20px;
  background: white;
  border-top: 1px solid #e1e5e9;
}

.input-wrapper {
  display: flex;
  gap: 10px;
  align-items: flex-end;
  background: #f8f9fa;
  border-radius: 25px;
  padding: 10px 15px;
  border: 2px solid #e9ecef;
  transition: border-color 0.3s ease;
}

.input-wrapper:focus-within {
  border-color: #007bff;
  box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

#messageInput {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  resize: none;
  font-size: 16px;
  line-height: 1.5;
  font-family: inherit;
  min-height: 24px;
  max-height: 120px;
}

#messageInput::placeholder {
  color: #6c757d;
}

#sendButton {
  background: linear-gradient(135deg, #007bff, #0056b3);
  border: none;
  border-radius: 50%;
  width: 45px;
  height: 45px;
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  flex-shrink: 0;
}

#sendButton:hover {
  transform: scale(1.05);
  box-shadow: 0 5px 15px rgba(0, 123, 255, 0.3);
}

#sendButton:active {
  transform: scale(0.95);
}

#sendButton:disabled {
  background: #6c757d;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.input-info {
  display: flex;
  justify-content: flex-end;
  margin-top: 5px;
  font-size: 0.8rem;
  color: #6c757d;
}

.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  backdrop-filter: blur(3px);
}

.loading-overlay.show {
  display: flex;
}

.loading-spinner {
  width: 50px;
  height: 50px;
  border: 4px solid #f3f3f3;
  border-top: 4px solid #007bff;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* Scrollbar personalizada */
.chat-container::-webkit-scrollbar {
  width: 6px;
}

.chat-container::-webkit-scrollbar-track {
  background: #f1f1f1;
  border-radius: 10px;
}

.chat-container::-webkit-scrollbar-thumb {
  background: #c1c1c1;
  border-radius: 10px;
}

.chat-container::-webkit-scrollbar-thumb:hover {
  background: #a8a8a8;
}

/* Responsivo */
@media (max-width: 600px) {
  body {
    padding: 10px;
  }

  .container {
    height: 95vh;
    border-radius: 15px;
  }

  .message {
    max-width: 90%;
  }

  .chat-header h1 {
    font-size: 1.5rem;
  }

  .input-wrapper {
    padding: 8px 12px;
  }

  #sendButton {
    width: 40px;
    height: 40px;
  }
}