/* Modern Variables */
:root {
  --chat-primary: #4F46E5;
  /* Indigo 600 */
  --chat-primary-hover: #4338ca;
  /* Indigo 700 */
  --chat-secondary: #8b5cf6;
  /* Violet 500 */
  --chat-bg: #ffffff;
  --chat-border: 1px solid rgba(0, 0, 0, 0.08);
  --chat-shadow: 0 12px 48px rgba(0, 0, 0, 0.15), 0 4px 12px rgba(0, 0, 0, 0.05);
  --chat-radius: 16px;
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
  --bubble-user: #4F46E5;
  --bubble-ai: #F3F4F6;
  --text-main: #111827;
  --text-sub: #6B7280;
}

#ai-chat-wrapper * {
  box-sizing: border-box;
}

#ai-chat-wrapper {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 99999;
  font-family: var(--font-family);
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  pointer-events: none;
  /* Let clicks pass through emptiness */
}

#ai-chat-wrapper>* {
  pointer-events: auto;
  /* Re-enable clicks on children */
}

/* Toggle Button */
.chat-toggle-btn {
  width: 60px !important;
  height: 60px !important;
  min-width: 60px !important;
  min-height: 60px !important;
  border-radius: 50% !important;
  background: var(--chat-primary) !important;
  border: none !important;
  box-shadow: 0 8px 24px rgba(79, 70, 229, 0.4) !important;
  cursor: pointer;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  padding: 0 !important;
  margin: 0 !important;
  outline: none !important;
  flex-shrink: 0 !important;
  aspect-ratio: 1 / 1 !important;
  box-sizing: border-box !important;
  line-height: 0 !important;
  /* Fix for some themes adding line-height to buttons */
}

.chat-toggle-btn:hover {
  transform: scale(1.05) translateY(-2px);
  box-shadow: 0 12px 32px rgba(79, 70, 229, 0.5);
  background: var(--chat-primary-hover);
}

.chat-toggle-btn svg {
  width: 32px;
  height: 32px;
  color: white;
  stroke: white;
}

/* Chat Container */
#ai-chat-container {
  width: 380px;
  height: 600px;
  max-width: 90vw;
  max-height: 80vh;
  margin-bottom: 20px;
  background: var(--chat-bg);
  border: var(--chat-border);
  border-radius: var(--chat-radius);
  box-shadow: var(--chat-shadow);
  display: flex;
  flex-direction: column;
  overflow: hidden;

  /* Animation */
  opacity: 1;
  transform: translateY(0) scale(1);
  transform-origin: bottom right;
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

#ai-chat-container.hidden {
  opacity: 0;
  transform: translateY(20px) scale(0.95);
  pointer-events: none;
  visibility: hidden;
}

/* Header */
#ai-chat-header {
  background: white;
  padding: 16px 20px;
  border-bottom: 1px solid #E5E7EB;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-shrink: 0;
}

#ai-chat-header span {
  font-weight: 600;
  font-size: 16px;
  color: var(--text-main);
}

#ai-chat-close {
  background: transparent !important;
  border: none !important;
  color: var(--text-sub) !important;
  width: 32px !important;
  height: 32px !important;
  min-width: 32px !important;
  min-height: 32px !important;
  border-radius: 50% !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  cursor: pointer !important;
  transition: background 0.2s;
  padding: 0 !important;
  margin: 0 !important;
  flex-shrink: 0 !important;
  aspect-ratio: 1 / 1 !important;
  box-sizing: border-box !important;
  line-height: 0 !important;
}

#ai-chat-close:hover {
  background: #F3F4F6;
  color: var(--text-main);
}

/* Messages */
#ai-chat-messages {
  flex: 1;
  padding: 20px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
  background: #FAFAFA;
}

.chat-message {
  max-width: 85%;
  padding: 12px 16px;
  border-radius: 12px;
  font-size: 14px;
  line-height: 1.5;
  position: relative;
  word-wrap: break-word;
}

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

.chat-message.ai {
  align-self: flex-start;
  background: var(--bubble-ai);
  color: var(--text-main);
  border-bottom-left-radius: 4px;
  border: 1px solid #E5E7EB;
}

/* Input Area */
#ai-chat-input-area {
  padding: 16px;
  background: white;
  border-top: 1px solid #E5E7EB;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

#ai-chat-input {
  flex: 1;
  background: #F3F4F6;
  border: 1px solid transparent;
  border-radius: 24px;
  padding: 10px 16px;
  font-size: 14px;
  color: var(--text-main);
  outline: none;
  transition: all 0.2s;
}

#ai-chat-input:focus {
  background: white;
  border-color: var(--chat-primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

#ai-chat-send {
  width: 40px !important;
  height: 40px !important;
  min-width: 40px !important;
  min-height: 40px !important;
  border-radius: 50% !important;
  background: var(--chat-primary) !important;
  color: white !important;
  border: none !important;
  cursor: pointer !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  transition: transform 0.1s;
  padding: 0 !important;
  margin: 0 !important;
  flex-shrink: 0 !important;
  aspect-ratio: 1 / 1 !important;
  box-sizing: border-box !important;
  line-height: 0 !important;
}

#ai-chat-send:hover {
  background: var(--chat-primary-hover);
}

#ai-chat-send:active {
  transform: scale(0.95);
}

#ai-chat-send svg {
  transform: translateX(-1px) translateY(1px);
  /* Optical adjustment */
}