/* _______________________________________________________________________ *\
 * chatstyle.css
\*________________________________________________________________________ */
/**
 * copyright 2024 Ujjwal Paliwal 
*/

/* Chatbot Container */
.chatbot-container {
  position: fixed;
  bottom: var(--space-7);
  right: var(--space-7);
  z-index: 1000;
  font-family: var(--font-primary);
  font-size: var(--fs-body-medium);
  color: var(--on-surface);
}

/* Chatbot Icon */
.chatbot-icon {
  width: 60px;
  height: 60px;
  background-color: var(--primary);
  color: var(--on-primary);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-3);
  transition: background-color 0.3s ease, transform 0.3s ease;
}

.chatbot-icon:hover {
  background-color: var(--primary);
  filter: brightness(1.2);
  transform: scale(1.1);
  box-shadow: 0 0 12px 4px var(--primary);
  transition: background-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

.chatbot-icon i {
  font-size: 24px;
}

/* Chat Window */
.chatbot-window {
  position: absolute;
  bottom: 80px;
  right: 0;
  width: 350px;
  max-height: 500px;
  background-color: var(--surface-container-highest);
  border-radius: var(--radius-large);
  box-shadow: var(--shadow-4);
  overflow: hidden;
  display: none;
  flex-direction: column;
  transition: opacity 0.3s ease, transform 0.3s ease;
  resize: vertical;
  min-height: 300px;
  max-height: 80vh;
}

.chatbot-window.active {
  display: flex;
  opacity: 1;
  transform: translateY(0);
  animation: fadeInUp 0.4s ease forwards;
}

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

/* Auth Required State */
.auth-required {
  padding: var(--space-6);
  text-align: center;
  color: var(--on-surface-variant);
}

.auth-message h3 {
  margin-top: 0;
  color: var(--on-surface);
  font-weight: var(--fw-bold);
  font-size: var(--fs-title-medium);
}

.auth-message p {
  color: var(--on-surface-variant);
  margin-bottom: var(--space-6);
}

.login-btn {
  background-color: var(--primary);
  color: var(--on-primary);
  border: none;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-small);
  text-decoration: none;
  display: inline-block;
  font-weight: var(--fw-medium);
  font-size: var(--fs-body-medium);
  transition: background-color 0.3s;
}

.login-btn:hover {
  filter: brightness(1.2);
  background-color: var(--primary);
}

/* API Key Form */
.api-key-form {
  padding: var(--space-6);
  color: var(--on-surface);
}

.api-key-form h3 {
  margin-top: 0;
  color: var(--on-surface);
  font-weight: var(--fw-bold);
  font-size: var(--fs-title-medium);
}

.api-key-form p {
  color: var(--on-surface-variant);
  margin-bottom: var(--space-4);
}

.api-key-form input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  margin-bottom: var(--space-4);
  border: 1px solid var(--outline);
  border-radius: var(--radius-small);
  font-size: var(--fs-body-medium);
  color: var(--on-surface);
  background-color: var(--surface-container);
  transition: border-color 0.2s;
}

.api-key-form input:focus {
  outline: none;
  border-color: var(--primary);
}

.api-key-form button {
  background-color: var(--primary);
  color: var(--on-primary);
  border: none;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-small);
  cursor: pointer;
  font-size: var(--fs-body-medium);
  font-weight: var(--fw-medium);
  width: 100%;
  transition: background-color 0.3s;
}

.api-key-form button:hover {
  background-color: var(--primary-dark);
}

.error-message {
  color: var(--error);
  font-size: var(--fs-label-small);
  margin-bottom: var(--space-2);
  display: none;
}

.small-text {
  font-size: var(--fs-label-small);
  color: var(--on-surface-variant);
  margin-top: var(--space-4);
  text-align: center;
}

.small-text a {
  color: var(--primary);
  text-decoration: none;
}

.small-text a:hover {
  text-decoration: underline;
}

/* Chat Interface */
.chat-header {
  background-color: var(--primary);
  color: var(--on-primary);
  padding: var(--space-3) var(--space-4);
  display: flex;
  align-items: center;
  font-weight: var(--fw-medium);
  font-size: var(--fs-body-large);
  border-top-left-radius: var(--radius-large);
  border-top-right-radius: var(--radius-large);
  gap: var(--space-3);
}

.chat-title {
  font-size: var(--fs-title-medium);
  font-weight: var(--fw-bold);
  flex-grow: 1;
  text-align: center;
}

.minimize-btn {
  background: none;
  border: none;
  color: inherit;
  font-size: 1.2rem;
  cursor: pointer;
  padding: 0;
  margin: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.chat-actions {
  display: flex;
  gap: var(--space-2);
  align-items: center;
}

.chat-actions button {
  background: none;
  border: none;
  color: var(--on-primary);
  cursor: pointer;
  font-size: var(--fs-label-large);
  padding: var(--space-1);
  opacity: 0.8;
  transition: opacity 0.2s;
}

.chat-actions button:hover {
  opacity: 1;
}

/* Chat Messages */
.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-4);
  background-color: var(--surface-container);
  display: flex;
  flex-direction: column;
}

/* Message Styles */
.message {
  display: flex;
  margin-bottom: var(--space-4);
  max-width: 80%;
  animation: fadeIn 0.3s ease;
  font-size: var(--fs-body-medium);
  line-height: var(--lh-body-medium);
}

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

.user-message {
  margin-left: auto;
  flex-direction: row-reverse;
}

.bot-message {
  margin-right: auto;
}

.message-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background-color: var(--surface-variant);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: var(--space-3);
  flex-shrink: 0;
  font-size: var(--fs-label-large);
  color: var(--on-surface-variant);
}

.user-message .message-avatar {
  background-color: var(--primary);
  color: var(--on-primary);
  margin-right: 0;
  margin-left: var(--space-3);
}

.bot-message .message-avatar {
  background-color: var(--secondary-container);
  color: var(--on-secondary-container);
}

.message-content {
  flex: 1;
  min-width: 0;
}

.message-text {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-large);
  line-height: var(--lh-body-medium);
  word-wrap: break-word;
  font-size: var(--fs-body-medium);
}

.user-message .message-text {
  background-color: var(--primary);
  color: var(--on-primary);
  border-bottom-right-radius: var(--radius-small);
}

.bot-message .message-text {
  background-color: var(--surface);
  color: var(--on-surface);
  border-bottom-left-radius: var(--radius-small);
  box-shadow: var(--shadow-1);
}

.message-time {
  font-size: var(--fs-label-small);
  color: var(--on-surface-variant);
  margin-top: var(--space-1);
  display: block;
}

.system-message {
  width: 100%;
  text-align: center;
  color: var(--on-surface-variant);
  font-size: var(--fs-label-small);
  margin: var(--space-2) 0;
  justify-content: center;
}

/* Input Area */
.chat-input-area {
  padding: var(--space-3);
  border-top: 1px solid var(--outline-variant);
  background-color: var(--surface-container);
  border-bottom-left-radius: var(--radius-large);
  border-bottom-right-radius: var(--radius-large);
}

.input-container {
  display: flex;
  align-items: flex-end;
  gap: var(--space-3);
}

.input-container textarea {
  flex: 1;
  border: 1px solid var(--outline);
  border-radius: var(--radius-large);
  padding: var(--space-3) var(--space-4);
  resize: none;
  max-height: 120px;
  font-family: var(--font-primary);
  font-size: var(--fs-body-medium);
  line-height: var(--lh-body-medium);
  color: var(--on-surface);
  background-color: var(--surface-container);
  transition: border-color 0.2s;
}

.input-container textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.input-container button {
  background-color: var(--primary);
  color: var(--on-primary);
  border: none;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background-color 0.3s;
  flex-shrink: 0;
}

.input-container button:hover {
  background-color: var(--primary-dark);
}

.disclaimer {
  font-size: var(--fs-label-small);
  color: var(--on-surface-variant);
  text-align: center;
  margin-top: var(--space-2);
}

/* Loading Indicator */
.loading {
  display: inline-flex;
  align-items: center;
  height: 20px;
}

.loading-dot {
  width: 6px;
  height: 6px;
  background-color: var(--on-surface-variant);
  border-radius: 50%;
  margin: 0 2px;
  animation: bounce 1.4s infinite ease-in-out;
}

.loading-dot:nth-child(1) {
  animation-delay: -0.32s;
}

.loading-dot:nth-child(2) {
  animation-delay: -0.16s;
}

@keyframes bounce {
  0%, 80%, 100% { 
    transform: scale(0);
  } 
  40% { 
    transform: scale(1.0);
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  .chatbot-container {
    right: var(--space-5);
    bottom: var(--space-5);
    font-size: var(--fs-body-small);
  }
  
  .chatbot-window {
    width: calc(100vw - var(--space-6));
    right: var(--space-3);
    bottom: 70px;
    max-height: 70vh;
  }

  .chat-header {
    font-size: var(--fs-body-medium);
    padding: var(--space-2) var(--space-3);
  }

  .chat-title {
    font-size: var(--fs-body-large);
  }

  .chat-actions button {
    font-size: var(--fs-label-medium);
    padding: var(--space-1);
  }

  .chat-messages {
    padding: var(--space-3);
  }

  .message {
    font-size: var(--fs-body-small);
    max-width: 90%;
  }

  .message-text {
    padding: var(--space-2) var(--space-3);
    font-size: var(--fs-body-small);
  }

  .input-container textarea {
    font-size: var(--fs-body-small);
    padding: var(--space-2) var(--space-3);
  }

  .input-container button {
    width: 36px;
    height: 36px;
  }

  .disclaimer {
    font-size: var(--fs-label-small);
    margin-top: var(--space-1);
  }
}

@media (max-width: 480px) {
  .chatbot-container {
    right: var(--space-5);
    bottom: var(--space-20);
  }
  
  .chatbot-window {
    width: calc(100vw - var(--space-8));
    right: calc(var(--space-4) * -1);
    bottom: 80px;
    scale: 0.9;
  }
  .chatbot-icon{
  scale: 0.8;
}
}