/* ═══════════════════════════════════════
   GoForU Chat UI — chat.css
   Messages · Bubbles · Quick Replies · Cards · Input
═══════════════════════════════════════ */

/* ─── Chat Messages Container ─── */
.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-5) var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  scroll-behavior: smooth;
}

/* ─── Message Row ─── */
.msg {
  display: flex;
  align-items: flex-end;
  gap: var(--space-2);
  max-width: 100%;
  animation: msgIn 0.25s ease both;
}
@keyframes msgIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.msg--ai  { flex-direction: row; }
.msg--user { flex-direction: row-reverse; }

/* Avatar */
.msg-avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--color-primary-light);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; flex-shrink: 0;
  align-self: flex-end;
  overflow: hidden;
}
.msg-avatar img {
  width: 100%; height: 100%;
  object-fit: cover;
  border-radius: 50%;
}
.msg--user .msg-avatar { background: var(--color-accent-light); }

/* Bubble */
.msg-bubble {
  max-width: 78%;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  font-size: var(--text-base);
  line-height: 1.6;
  word-wrap: break-word;
  position: relative;
}

.msg--ai .msg-bubble {
  background: var(--color-surface);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
  border-bottom-left-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
}

.msg--user .msg-bubble {
  background: var(--color-primary);
  color: #fff;
  border-bottom-right-radius: var(--radius-sm);
}

/* Timestamp */
.msg-time {
  font-size: 10px;
  color: var(--color-text-muted);
  margin-top: 4px;
  padding: 0 var(--space-1);
  align-self: flex-end;
}
.msg--user .msg-time { text-align: right; }

/* Message content wrapper */
.msg-content { display: flex; flex-direction: column; gap: 4px; }
.msg--user .msg-content { align-items: flex-end; }

/* Retract button */
.msg-retract-btn {
  background: none;
  border: none;
  font-size: 11px;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: 0 var(--space-1);
  opacity: 0;
  transition: opacity 0.15s;
  align-self: flex-end;
}
.msg--user:hover .msg-retract-btn { opacity: 1; }
.msg-retract-btn:hover { color: var(--color-danger, #e74c3c); }
/* Touch devices: always show retract button */
@media (hover: none) {
  .msg-retract-btn { opacity: 0.6; }
}


/* ─── 🔊 朗读按钮（AI气泡内） ─── */
.msg-speak-btn {
  background: none; border: none;
  font-size: 13px; cursor: pointer;
  padding: 2px 4px; margin-left: 4px;
  color: var(--color-text-muted);
  opacity: 0; transition: opacity 0.15s;
  vertical-align: middle; line-height: 1;
}
.msg--ai:hover .msg-speak-btn { opacity: 0.7; }
.msg-speak-btn:hover { opacity: 1 !important; }
@media (hover: none) { .msg-speak-btn { opacity: 0.5; } }

/* ─── AI Typing Indicator ─── */
.msg-typing .msg-bubble {
  padding: var(--space-3) var(--space-4);
  min-width: 60px;
}
.msg-bubble--thinking {
  font-size: 12px;
  color: var(--color-text-secondary);
  font-style: italic;
  opacity: 0.75;
  min-width: unset;
  animation: thinkingFade 1.8s ease-in-out infinite;
}
@keyframes thinkingFade {
  0%, 100% { opacity: 0.55; }
  50%       { opacity: 0.85; }
}
.typing-dots {
  display: flex; gap: 5px; align-items: center; height: 20px;
}
.typing-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--color-text-muted);
  animation: typingBounce 1.2s ease-in-out infinite;
}
.typing-dot:nth-child(1) { animation-delay: 0s; }
.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }
@keyframes typingBounce {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30% { transform: translateY(-6px); opacity: 1; }
}

/* ─── Streaming Message ─── */
.msg-streaming .msg-bubble::after {
  content: "▋";
  color: var(--color-primary);
  animation: blink 0.8s step-start infinite;
  margin-left: 2px;
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}


/* ─── Inline Safety Badge in message ─── */
.safety-inline {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: #FFF3E0;
  color: #E65100;
  border: 1px solid #FFB74D;
  border-radius: var(--radius-sm);
  padding: 2px 7px;
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  margin: 2px 3px;
  cursor: default;
}
.safety-inline--critical { background: #FDECEA; color: #B71C1C; border-color: #EF9A9A; }
.safety-inline--info { background: #EDE7F6; color: #4527A0; border-color: #B39DDB; }


/* ─── Quick Replies ─── */
.quick-replies {
  padding: 0 var(--space-4) var(--space-2);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  overflow-x: auto;
  scrollbar-width: none;
}
.quick-replies:empty { display: none; }
.quick-replies::-webkit-scrollbar { display: none; }

.qr-chip {
  padding: 7px var(--space-4);
  border: 1.5px solid var(--color-primary);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-primary);
  background: var(--color-primary-light);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
  user-select: none;
  animation: chipIn 0.2s ease both;
}
.qr-chip:hover { background: var(--color-primary); color: #fff; transform: translateY(-1px); }
.qr-chip:active { transform: scale(0.96); }
@keyframes chipIn {
  from { opacity: 0; transform: scale(0.9); }
  to   { opacity: 1; transform: scale(1); }
}


/* ─── Chat Input Area ─── */
.chat-input-area {
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
  padding: var(--space-2) var(--space-4) var(--space-4);
  flex-shrink: 0;
}

.chat-input-row {
  display: flex;
  align-items: flex-end;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-2) var(--space-2) var(--space-4);
  background: var(--color-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-xl);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.chat-input-row:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(26,115,232,0.10);
}

.chat-input {
  flex: 1;
  border: none;
  background: transparent;
  outline: none;
  font-size: var(--text-base);
  color: var(--color-text-primary);
  resize: none;
  line-height: 1.5;
  max-height: 120px;
  min-height: 24px;
  padding: 4px 0;
}
.chat-input::placeholder { color: var(--color-text-muted); }

.btn-send {
  width: 36px; height: 36px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  transition: all var(--transition-fast);
}
.btn-send:hover { background: var(--color-primary-dark); transform: scale(1.05); }
.btn-send:active { transform: scale(0.95); }
.btn-send:disabled { background: var(--color-border); color: var(--color-text-muted); transform: none; }


/* ─── Destination Select Cards (in chat) ─── */
.chat-dest-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-2);
  margin-top: var(--space-3);
  max-width: 340px;
}

.chat-dest-card {
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-normal);
  min-height: 150px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  border: 2px solid transparent;
  user-select: none;
  position: relative;
  overflow: hidden;
}
.chat-dest-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.65) 0%, rgba(0,0,0,0.2) 55%, transparent 100%);
  pointer-events: none;
}
.chat-dest-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.chat-dest-card--selected { border-color: rgba(255,255,255,0.9); box-shadow: 0 0 0 3px rgba(255,255,255,0.35), var(--shadow-lg); }

.chat-dest-visa-badge {
  position: absolute;
  top: 8px; right: 8px;
  background: rgba(0,0,0,0.45);
  backdrop-filter: blur(4px);
  color: #fff;
  font-size: 10px;
  font-weight: var(--weight-medium);
  padding: 2px 7px;
  border-radius: 20px;
  z-index: 2;
  white-space: nowrap;
}
.chat-dest-body {
  position: relative;
  z-index: 1;
  padding: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.chat-dest-emoji { font-size: 28px; line-height: 1; margin-bottom: 3px; }
.chat-dest-name  { font-size: var(--text-base); font-weight: var(--weight-bold); color: #fff; text-shadow: 0 1px 4px rgba(0,0,0,0.6); }
.chat-dest-tagline { font-size: 11px; color: rgba(255,255,255,0.9); text-shadow: 0 1px 3px rgba(0,0,0,0.5); }
.chat-dest-cities  { font-size: 10px; color: rgba(255,255,255,0.7); margin-top: 2px; }

/* ─── Trip Setup Card ─── */
.trip-setup-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  margin-top: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  max-width: 320px;
}
.trip-setup-section { display: flex; flex-direction: column; gap: var(--space-2); }
.trip-setup-label { font-size: 11px; font-weight: var(--weight-semibold); color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.5px; }
.trip-setup-chips { display: flex; gap: var(--space-2); flex-wrap: wrap; }
.trip-chip {
  padding: 6px 12px;
  border-radius: 20px;
  border: 1.5px solid var(--color-border);
  background: transparent;
  color: var(--color-text);
  font-size: var(--text-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}
.trip-chip:hover { border-color: var(--color-primary); color: var(--color-primary); }
.trip-chip--active { background: var(--color-primary); border-color: var(--color-primary); color: #fff; font-weight: var(--weight-medium); }
.trip-setup-count {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text);
}
.trip-count-label { flex: 1; color: var(--color-text-muted); }
.trip-count-unit  { color: var(--color-text-muted); }
.trip-date-picker-row { display: flex; align-items: center; gap: var(--space-2); }
.trip-date-input {
  flex: 1;
  padding: 7px 10px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--color-text);
  background: var(--color-bg);
  cursor: pointer;
  transition: border-color var(--transition-fast);
  min-width: 0;
}
.trip-date-input:focus { outline: none; border-color: var(--color-primary); }
.trip-date-shortcuts {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 6px;
}
.trip-date-shortcut {
  padding: 3px 9px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text-muted);
  font-size: 11px;
  cursor: pointer;
  transition: all var(--transition-fast);
}
.trip-date-shortcut:hover { border-color: var(--color-primary); color: var(--color-primary); }


/* ─── Info Cards in Chat (budget tier, pace, etc.) ─── */
.chat-cards {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-3);
  max-width: 340px;
}

.chat-card {
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  cursor: pointer;
  transition: all var(--transition-fast);
  background: var(--color-surface);
  user-select: none;
  min-width: 90px;
  text-align: center;
}
.chat-card:hover { border-color: var(--color-primary); background: var(--color-primary-light); }
.chat-card--selected {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
  color: var(--color-primary);
}
.chat-card-emoji { font-size: 20px; margin-bottom: 2px; }
.chat-card-label { font-size: var(--text-sm); font-weight: var(--weight-semibold); }
.chat-card-sub { font-size: 11px; color: var(--color-text-muted); }
.chat-card--selected .chat-card-sub { color: var(--color-primary); opacity: 0.8; }

/* Interest Tags */
.chat-tags {
  display: flex; flex-wrap: wrap; gap: var(--space-2);
  margin-top: var(--space-3); max-width: 340px;
}
.chat-tag {
  padding: 6px var(--space-3);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
  background: var(--color-surface);
}
.chat-tag:hover { border-color: var(--color-primary); background: var(--color-primary-light); color: var(--color-primary); }
.chat-tag--selected {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: #fff;
}

/* Confirm Tags Button */
.chat-tags-confirm {
  width: 100%;
  margin-top: var(--space-2);
  max-width: 340px;
}

/* Traveler Selector */
.traveler-selector {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-top: var(--space-2);
  max-width: 340px;
}
.traveler-count-row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-3);
}
.traveler-count-label { font-size: var(--text-sm); color: var(--color-text-muted); flex: 1; }
.traveler-count-unit  { font-size: var(--text-sm); color: var(--color-text-muted); }
.count-btn {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 16px;
  font-weight: bold;
  border: none;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background var(--transition-fast);
}
.count-btn:hover { background: var(--color-primary); color: #fff; }
.count-display {
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  color: var(--color-primary);
  min-width: 24px;
  text-align: center;
}


/* ─── Accommodation Prefs Card ─── */
.accom-prefs {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: var(--space-2);
  max-width: 360px;
}
.accom-group { display: flex; flex-direction: column; gap: var(--space-1); }
.accom-group-label {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.accom-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.accom-chip {
  padding: 5px 12px;
  border-radius: var(--radius-full);
  border: 1.5px solid var(--color-border);
  background: var(--color-surface);
  font-size: var(--text-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  color: var(--color-text);
}
.accom-chip:hover { border-color: var(--color-primary); color: var(--color-primary); }
.accom-chip--selected { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }

/* ─── Season / Info Tip in Chat ─── */
.chat-tip {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  padding: var(--space-3);
  background: var(--color-primary-light);
  border-radius: var(--radius-md);
  margin-top: var(--space-2);
  max-width: 340px;
  font-size: var(--text-sm);
  color: var(--color-primary-dark);
}
.chat-tip-icon { font-size: 16px; flex-shrink: 0; }
.chat-tip--warning { background: #FFF8E1; color: #E65100; }
.chat-tip--success { background: #E8F5E9; color: #1B5E20; }


/* ─── System Message ─── */
.msg-system {
  text-align: center;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  padding: var(--space-2) 0;
  font-style: italic;
}


/* ─── Responsive ─── */
@media (max-width: 768px) {
  .msg-bubble { max-width: 88%; }
  .chat-dest-grid { grid-template-columns: repeat(2, 1fr); }
  .chat-cards { flex-direction: row; flex-wrap: wrap; }
}

/* ═══════════════════════════════════════
   v2 · 助手咨询界面视觉对齐 —— 与主线最新 UI（米白纸卡体系）统一
   米白底 · 纸卡气泡 · serif 标题 · 轻蓝/暖黄点缀
═══════════════════════════════════════ */

/* 整体米白底 */
#screen-chat,
.chat-panel,
.chat-messages {
  background: var(--cream-bg, #FBFCFE);
}

/* 头部：纸卡式轻结构 + serif 标题 */
.chat-header {
  background: var(--cream-paper, #fff);
  border-bottom: 1px solid var(--cream-line, rgba(27,36,54,0.08));
}
.chat-header-title {
  font-family: var(--font-serif);
  font-size: 17px;
  color: var(--cream-ink, #1B2436);
  letter-spacing: 0.02em;
}

/* AI 气泡：白纸卡 + 轻边框 + 左侧暖色提示线 */
.msg--ai .msg-bubble {
  background: var(--cream-paper, #fff);
  border: 1px solid var(--cream-line, rgba(27,36,54,0.08));
  border-left: 3px solid var(--cream-warm, #4A9EE8);
  box-shadow: 0 1px 3px rgba(27,36,54,0.05);
  color: var(--cream-ink, #1B2436);
}

/* 用户气泡：品牌蓝，保持但调到 cream-brand */
.msg--user .msg-bubble {
  background: var(--cream-brand, #2F7FD9);
}

/* 快捷回复：纸卡 pill，悬停才上品牌色 */
.qr-chip {
  background: var(--cream-paper, #fff);
  border: 1px solid var(--cream-line, rgba(27,36,54,0.12));
  color: var(--cream-brand, #2F7FD9);
  box-shadow: 0 1px 2px rgba(27,36,54,0.05);
}
.qr-chip:hover {
  background: var(--cream-brand, #2F7FD9);
  border-color: var(--cream-brand, #2F7FD9);
  color: #fff;
}

/* 输入区：与纸卡体系一致 */
.chat-input-area {
  background: var(--cream-paper, #fff);
  border-top: 1px solid var(--cream-line, rgba(27,36,54,0.08));
}
.chat-input-row {
  background: var(--cream-bg, #FBFCFE);
  border-color: var(--cream-line, rgba(27,36,54,0.12));
}
.chat-input-row:focus-within {
  border-color: var(--cream-brand, #2F7FD9);
  box-shadow: 0 0 0 3px rgba(47,127,217,0.10);
}
.btn-send { background: var(--cream-brand, #2F7FD9); }
.btn-send:hover { background: #2566B3; }