/**
 * Chatbot widget — Voiceflow-inspired UI.
 * Everything scoped to #chatbot-popup and #chatbot-toggle so theme CSS is unaffected.
 */

@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap");

#chatbot-toggle.vf-launcher {
  position: fixed;
  bottom: max(20px, env(safe-area-inset-bottom, 0px));
  right: max(20px, env(safe-area-inset-right, 0px));
  z-index: 999998;
  width: 60px;
  height: 60px;
  border: none;
  border-radius: 50%;
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow:
    0 4px 14px rgba(15, 23, 42, 0.18),
    0 2px 4px rgba(15, 23, 42, 0.08);
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease;
}

#chatbot-toggle.vf-launcher:hover {
  transform: scale(1.06);
  box-shadow:
    0 8px 24px rgba(15, 23, 42, 0.2),
    0 2px 8px rgba(15, 23, 42, 0.1);
}

#chatbot-toggle.vf-launcher:active {
  transform: scale(0.98);
}

#chatbot-toggle.vf-launcher .vf-launcher-icon {
  font-size: 28px;
  font-weight: 500;
  line-height: 1;
}

#chatbot-popup.vf-chat-panel {
  --vf-surface: #ffffff;
  --vf-canvas: #f4f5f7;
  --vf-border: rgba(15, 23, 42, 0.08);
  --vf-text: #0f172a;
  --vf-text-muted: #64748b;
  --vf-radius-panel: 20px;
  --vf-radius-bubble: 16px;
  --vf-radius-bubble-user: 16px 16px 4px 16px;
  --vf-radius-bubble-bot: 16px 16px 16px 4px;
  --vf-shadow-panel: 0 25px 50px -12px rgba(15, 23, 42, 0.18), 0 0 0 1px var(--vf-border);
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  position: fixed;
  bottom: max(20px, env(safe-area-inset-bottom, 0px));
  right: max(20px, env(safe-area-inset-right, 0px));
  z-index: 999999;
  width: 100%;
  max-width: 400px;
  height: min(620px, calc(100vh - 100px));
  max-height: calc(100dvh - 100px);
  background: var(--vf-surface);
  border-radius: var(--vf-radius-panel);
  box-shadow: var(--vf-shadow-panel);
  overflow: hidden;
  display: none;
  flex-direction: column;
  opacity: 0;
  transform: translateY(16px) scale(0.96);
  transform-origin: bottom right;
  transition:
    opacity 0.28s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

#chatbot-popup.vf-chat-panel.vf-panel-open {
  display: flex;
  opacity: 1;
  transform: translateY(0) scale(1);
}

#chatbot-popup .vf-chat-inner {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
  background: var(--vf-surface);
}

/* Header */
#chatbot-popup .vf-chat-header {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  background: var(--vf-surface);
  border-bottom: 1px solid var(--vf-border);
}

#chatbot-popup .vf-header-main {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

#chatbot-popup .vf-header-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  background: var(--vf-canvas);
  box-shadow: 0 0 0 2px var(--vf-surface), 0 0 0 3px var(--vf-border);
}

#chatbot-popup .vf-header-text {
  min-width: 0;
}

#chatbot-popup .vf-chat-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--vf-text);
  letter-spacing: -0.01em;
  line-height: 1.25;
}

#chatbot-popup .vf-chat-sub {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 2px;
  font-size: 12px;
  font-weight: 500;
  color: var(--vf-text-muted);
}

#chatbot-popup .vf-status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 2px rgba(34, 197, 94, 0.25);
  flex-shrink: 0;
}

#chatbot-popup .vf-close-btn {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 10px;
  background: transparent;
  color: var(--vf-text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s ease, color 0.15s ease;
}

#chatbot-popup .vf-close-btn:hover {
  background: var(--vf-canvas);
  color: var(--vf-text);
}

#chatbot-popup .vf-close-btn .material-symbols-outlined {
  font-size: 22px;
  font-weight: 500;
}

/* Scroll area */
#chatbot-popup .vf-chat-scroll {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  background: var(--vf-canvas);
  -webkit-overflow-scrolling: touch;
}

#chatbot-popup .vf-messages {
  list-style: none;
  margin: 0;
  padding: 20px 16px 24px;
}

#chatbot-popup .vf-messages::-webkit-scrollbar {
  width: 6px;
}

#chatbot-popup .vf-messages::-webkit-scrollbar-track {
  background: transparent;
}

#chatbot-popup .vf-messages::-webkit-scrollbar-thumb {
  background: rgba(15, 23, 42, 0.12);
  border-radius: 10px;
}

/* Message rows */
#chatbot-popup .chat {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  margin: 0 0 14px;
  padding: 0;
}

#chatbot-popup .chat.outgoing,
#chatbot-popup .chat.vf-msg-row--user {
  flex-direction: row;
  justify-content: flex-end;
}

#chatbot-popup .chat.incoming:not(.vf-msg-row--user) {
  flex-direction: row;
  justify-content: flex-start;
}

#chatbot-popup .vf-msg-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  align-self: flex-end;
  background: var(--vf-surface);
  box-shadow: 0 0 0 1px var(--vf-border);
}

#chatbot-popup .vf-msg-stack {
  max-width: calc(100% - 42px);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

#chatbot-popup .vf-msg-stack--user {
  align-items: flex-end;
  max-width: 85%;
}

#chatbot-popup .vf-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Bubbles */
#chatbot-popup .message-container {
  border-radius: var(--vf-radius-bubble-bot);
  padding: 11px 14px;
  position: relative;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}

#chatbot-popup .message-container.vf-bot-bubble,
#chatbot-popup .chat.incoming .message-container:not(.user) {
  background: var(--vf-bot-bg, #ffffff);
  color: var(--vf-bot-fg, #0f172a);
  border: 1px solid var(--vf-border);
  border-radius: var(--vf-radius-bubble-bot);
}

#chatbot-popup .message-container.user,
#chatbot-popup .message-container.vf-user-bubble {
  background: var(--vf-user-bg, #0f172a);
  color: var(--vf-user-fg, #ffffff);
  border: none;
  border-radius: var(--vf-radius-bubble-user);
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.12);
}

#chatbot-popup .message-info,
#chatbot-popup .message-text {
  margin: 0;
  padding: 0;
}

#chatbot-popup .message-text {
  font-size: 14px !important;
  line-height: 1.5;
  font-weight: 400;
}

#chatbot-popup .chat-response {
  font-family: inherit !important;
  font-size: 14px;
  font-weight: 400;
  line-height: 1.5;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  word-break: break-word;
}

#chatbot-popup .outgoing .message-text,
#chatbot-popup .message-container.user .message-text,
#chatbot-popup .message-container.user .chat-response {
  color: inherit;
}

#chatbot-popup .vf-bot-bubble .chat-response {
  color: var(--vf-bot-fg, #0f172a);
}

/* Typing indicator (before stream tokens arrive) */
#chatbot-popup .message-container.vf-has-typing {
  min-width: 72px;
  min-height: 48px;
  display: flex;
  align-items: center;
}

#chatbot-popup .vf-has-typing .message-info,
#chatbot-popup .vf-has-typing .message-text {
  display: flex;
  align-items: center;
  min-height: 28px;
}

#chatbot-popup .chat-response.typing {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 6px 2px;
  min-height: 28px;
  color: var(--vf-bot-fg, #0f172a);
}

#chatbot-popup .chat-response.typing .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--vf-bot-fg, #64748b);
  opacity: 0.45;
  flex-shrink: 0;
  animation: vf-typing 1.2s ease-in-out infinite;
}

#chatbot-popup .chat-response.typing .dot:nth-child(2) {
  animation-delay: 0.15s;
}

#chatbot-popup .chat-response.typing .dot:nth-child(3) {
  animation-delay: 0.3s;
}

@keyframes vf-typing {
  0%,
  80%,
  100% {
    opacity: 0.3;
    transform: translateY(0);
  }
  40% {
    opacity: 1;
    transform: translateY(-4px);
  }
}

/* Composer */
#chatbot-popup .vf-composer {
  flex-shrink: 0;
  padding: 12px 14px 16px;
  background: var(--vf-surface);
  border-top: 1px solid var(--vf-border);
  box-shadow: 0 -4px 20px rgba(15, 23, 42, 0.04);
}

#chatbot-popup .vf-composer-inner {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  background: var(--vf-canvas);
  border: 1px solid var(--vf-border);
  border-radius: 14px;
  padding: 6px 6px 6px 14px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

#chatbot-popup .vf-composer-inner:focus-within {
  border-color: rgba(15, 23, 42, 0.15);
  box-shadow: 0 0 0 3px rgba(15, 23, 42, 0.05);
}

#chatbot-popup .vf-composer textarea {
  flex: 1;
  min-height: 22px;
  max-height: 120px;
  width: 100%;
  border: none;
  outline: none;
  resize: none;
  background: transparent;
  font-family: inherit;
  font-size: 14px;
  line-height: 1.45;
  color: var(--vf-text);
  padding: 8px 0;
}

#chatbot-popup .vf-composer textarea::placeholder {
  color: #94a3b8;
}

#chatbot-popup .vf-send-btn {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.15s ease, opacity 0.15s ease;
  background: var(--vf-user-bg, #0f172a);
  color: var(--vf-user-fg, #fff);
}

#chatbot-popup .vf-send-btn:hover:not(:disabled) {
  transform: scale(1.05);
}

#chatbot-popup .vf-send-btn:active:not(:disabled) {
  transform: scale(0.97);
}

#chatbot-popup .vf-send-btn .material-symbols-rounded {
  font-size: 22px;
  font-variation-settings: "FILL" 1, "wght" 500;
}

#chatbot-popup .vf-send-btn[disabled],
#chatbot-popup .vf-send-btn.vf-send-disabled {
  opacity: 0.35;
  cursor: not-allowed;
  pointer-events: none;
}

/* CTA buttons (tool responses) */
#chatbot-popup .chatbot-button,
#chatbot-popup a.chatbot-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 8px;
  padding: 10px 16px;
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  background: linear-gradient(180deg, #4f46e5 0%, #4338ca 100%);
  color: #fff !important;
  box-shadow: 0 2px 6px rgba(67, 56, 202, 0.35);
  transition:
    transform 0.15s ease,
    box-shadow 0.15s ease;
}

#chatbot-popup .chatbot-button:hover,
#chatbot-popup a.chatbot-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(67, 56, 202, 0.4);
}

#chatbot-popup .chatbot-button .material-symbols-outlined {
  font-size: 18px;
}

/* Mobile */
@media (prefers-reduced-motion: reduce) {
  #chatbot-toggle.vf-launcher,
  #chatbot-popup.vf-chat-panel {
    transition: none;
  }

  #chatbot-popup .chat-response.typing .dot {
    animation: none;
    opacity: 0.5;
  }
}

@media (max-width: 480px) {
  #chatbot-toggle.vf-launcher {
    bottom: max(16px, env(safe-area-inset-bottom, 0px));
    right: max(16px, env(safe-area-inset-right, 0px));
    width: 56px;
    height: 56px;
  }

  #chatbot-popup.vf-chat-panel {
    max-width: none;
    width: 100%;
    height: 100%;
    max-height: none;
    bottom: 0;
    right: 0;
    left: 0;
    top: 0;
    border-radius: 0;
    transform: translateY(100%);
  }

  #chatbot-popup.vf-chat-panel.vf-panel-open {
    transform: translateY(0);
  }
}