/* --- New Chat Styles --- */

#chat-toggle {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  z-index: 1000;
  box-shadow: 0 4px 8px rgba(0,0,0,0.2);
  /* Use the button variable from theme.css */
  background-color: var(--button-bg);
  color: var(--toolbar-text); /* Re-using toolbar text color */
}

#chat-toggle:hover {
  background-color: var(--button-hover-bg);
}

#chat-toggle svg {
  width: 28px;
  height: 28px;
}

#chat-window {
  position: fixed;
  bottom: 90px;
  right: 20px;
  width: 350px;
  height: 500px;
  background-color: var(--chat-window-bg);
  color: var(--page-text);
  border-radius: 8px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.2);
  z-index: 999;
  
  display: flex;
  flex-direction: column;
  
  /* Hide by default */
  opacity: 0;
  transform: scale(0.1);
  transform-origin: bottom right;
  transition: transform 0.3s ease, opacity 0.3s ease;
  pointer-events: none;
}

#chat-window.chat-open {
  opacity: 1;
  transform: scale(1);
  pointer-events: auto;
}

.chat-header {
  padding: 12px 15px;
  background: var(--chat-header-bg);
  color: var(--chat-header-text);
  border-top-left-radius: 8px;
  border-top-right-radius: 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: bold;
}

#chat-close {
  background: none;
  border: none;
  color: var(--chat-header-text);
  font-size: 1.5rem;
  line-height: 1;
  padding: 0 5px;
  opacity: 0.8;
}
#chat-close:hover {
  background: none;
  opacity: 1;
}

#chat-body {
  flex-grow: 1;
  padding: 15px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.chat-message {
  padding: 8px 12px;
  border-radius: 18px;
  max-width: 80%;
  line-height: 1.4;
}

.chat-message.bot {
  background-color: var(--chat-message-bot-bg);
  align-self: flex-start;
  border-bottom-left-radius: 4px;
}

.chat-message.user {
  background-color: var(--chat-message-user-bg);
  align-self: flex-end;
  border-bottom-right-radius: 4px;
}

.chat-footer {
  padding: 10px 15px;
  border-top: 1px solid var(--canvas-border);
  display: flex;
  gap: 10px;
}

#chat-input {
  flex-grow: 1;
  border: 1px solid var(--canvas-border);
  background-color: var(--chat-input-bg);
  color: var(--page-text);
  padding: 10px;
  border-radius: 20px;
}

#chat-send {
  flex-shrink: 0;
  width: 70px;
  border-radius: 20px;
}

/* --- New Context Message Style --- */
.chat-message.context-message {
  font-style: italic;
  opacity: 0.9;
  font-size: 0.9em;
  background-color: var(--chat-message-bot-bg); /* Use bot bg for neutrality */
  align-self: flex-start; /* Align left */
  border-bottom-left-radius: 4px;
}