/* ==========================================================================
   Phase 4: Innovation Features — Chatbot, Voice Guide, Realtime, Charts
   ========================================================================== */

/* ---- Chatbot FAB (Floating Action Button) ---- */
.chatbot-fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 800;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  border: none;
  background: var(--color-primary-gradient);
  color: var(--color-text-inverse);
  cursor: pointer;
  box-shadow: var(--shadow-lg), 0 0 0 0 rgba(14, 165, 160, 0.4);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  animation: chatFabPulse 2.5s ease-in-out infinite;
}

.chatbot-fab:hover {
  transform: scale(1.08);
  box-shadow: var(--shadow-xl);
}

.chatbot-fab.is-active {
  animation: none;
  background: var(--color-text);
  transform: scale(0.95);
}

.chatbot-fab__icon {
  font-size: 1.625rem;
  line-height: 1;
}

@keyframes chatFabPulse {
  0%, 100% { box-shadow: var(--shadow-lg), 0 0 0 0 rgba(14, 165, 160, 0.4); }
  50% { box-shadow: var(--shadow-lg), 0 0 0 12px rgba(14, 165, 160, 0); }
}

/* ---- Chatbot Panel ---- */
.chatbot-panel {
  position: fixed;
  bottom: 96px;
  right: 24px;
  z-index: 810;
  width: 380px;
  max-height: 560px;
  background: var(--color-bg-white);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px) scale(0.95);
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
}

.chatbot-panel.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.chatbot-panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  background: var(--color-primary-gradient);
  color: var(--color-text-inverse);
  border-radius: var(--border-radius-xl) var(--border-radius-xl) 0 0;
}

.chatbot-panel__title-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.chatbot-panel__avatar {
  font-size: 1.75rem;
}

.chatbot-panel__title {
  font-size: var(--font-size-md);
  font-weight: 700;
  margin: 0;
  line-height: 1.3;
}

.chatbot-panel__subtitle {
  font-size: var(--font-size-xs);
  opacity: 0.85;
}

.chatbot-panel__actions {
  display: flex;
  gap: 4px;
}

.chatbot-panel__actions .btn-icon {
  color: var(--color-text-inverse);
  opacity: 0.8;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  font-size: 1rem;
}

.chatbot-panel__actions .btn-icon:hover {
  opacity: 1;
}

/* Disclaimer bar */
.chatbot-panel__disclaimer {
  padding: 8px 12px;
  background: var(--color-accent-light);
  color: var(--color-text);
  font-size: var(--font-size-xs);
  text-align: center;
  border-bottom: 1px solid var(--color-border);
}

/* Messages area */
.chatbot-panel__messages {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
  min-height: 200px;
  max-height: 320px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* Message bubbles */
.chatbot-msg {
  display: flex;
  flex-direction: column;
  max-width: 85%;
  animation: chatMsgIn 0.25s ease;
}

.chatbot-msg--user {
  align-self: flex-end;
}

.chatbot-msg--assistant {
  align-self: flex-start;
}

.chatbot-msg--system {
  align-self: center;
  max-width: 90%;
}

.chatbot-msg__content {
  padding: 10px 14px;
  border-radius: var(--border-radius-lg);
  font-size: var(--font-size-sm);
  line-height: 1.6;
  word-break: break-word;
}

.chatbot-msg--user .chatbot-msg__content {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border-bottom-right-radius: 4px;
}

.chatbot-msg--assistant .chatbot-msg__content {
  background: var(--color-bg-secondary);
  color: var(--color-text);
  border-bottom-left-radius: 4px;
}

.chatbot-msg--system .chatbot-msg__content {
  background: var(--color-accent-light);
  color: var(--color-text-light);
  font-size: var(--font-size-xs);
  text-align: center;
  border-radius: var(--border-radius-pill);
}

.chatbot-msg__time {
  font-size: 0.6875rem;
  color: var(--color-text-light);
  margin-top: 3px;
  padding: 0 4px;
}

.chatbot-msg--user .chatbot-msg__time {
  text-align: right;
}

.chatbot-bullet {
  color: var(--color-primary-dark);
  font-weight: 700;
}

/* Typing indicator dots */
.chatbot-dots {
  display: flex;
  gap: 4px;
  padding: 4px 0;
}

.chatbot-dots span {
  width: 8px;
  height: 8px;
  background: var(--color-text-light);
  border-radius: 50%;
  animation: chatDot 1.2s ease-in-out infinite;
}

.chatbot-dots span:nth-child(2) { animation-delay: 0.2s; }
.chatbot-dots span:nth-child(3) { animation-delay: 0.4s; }

@keyframes chatDot {
  0%, 80%, 100% { opacity: 0.3; transform: scale(0.8); }
  40% { opacity: 1; transform: scale(1.1); }
}

@keyframes chatMsgIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Suggestion chips */
.chatbot-panel__suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 8px 12px;
  border-top: 1px solid var(--color-border);
}

.chatbot-suggestion {
  padding: 6px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-pill);
  background: var(--color-bg-white);
  color: var(--color-primary-dark);
  font-size: var(--font-size-xs);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.chatbot-suggestion:hover {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
}

/* Input row */
.chatbot-panel__input-row {
  display: flex;
  gap: 8px;
  padding: 10px 12px;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg);
  border-radius: 0 0 var(--border-radius-xl) var(--border-radius-xl);
}

.chatbot-panel__input {
  flex: 1;
  padding: 8px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  font-size: var(--font-size-sm);
  transition: border-color var(--transition-fast);
}

.chatbot-panel__input:focus {
  border-color: var(--color-primary);
  outline: var(--focus-outline-width, 3px) solid var(--focus-outline-color, #0EA5A0);
  outline-offset: var(--focus-outline-offset, 2px);
  box-shadow: 0 0 0 2px rgba(14, 165, 160, 0.15);
}

.chatbot-panel__send {
  padding: 8px 16px;
  font-size: var(--font-size-sm);
}

/* ---- Voice Guide Control Bar ---- */
.voice-control-bar {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%) translateY(100%);
  z-index: 820;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: rgba(45, 55, 72, 0.95);
  backdrop-filter: blur(10px);
  color: var(--color-text-inverse);
  border-radius: var(--border-radius-xl) var(--border-radius-xl) 0 0;
  box-shadow: var(--shadow-xl);
  transition: transform 0.3s ease;
}

.voice-control-bar.is-visible {
  transform: translateX(-50%) translateY(0);
}

.voice-ctrl__btn {
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  color: var(--color-text-inverse);
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast);
}

.voice-ctrl__btn:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.3);
}

.voice-ctrl__btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.voice-ctrl__speed {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: 8px;
  padding-left: 12px;
  border-left: 1px solid rgba(255, 255, 255, 0.2);
}

.voice-ctrl__rate {
  font-size: var(--font-size-sm);
  min-width: 36px;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

.voice-ctrl__close {
  margin-left: 8px;
}

/* Voice read button (inline) */
.voice-read-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  background: var(--color-bg-white);
  color: var(--color-primary-dark);
  font-size: var(--font-size-xs);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.voice-read-btn:hover {
  background: var(--color-primary-light);
  border-color: var(--color-primary-dark);
}

/* 100% 放大版語音朗讀按鈕（參考健保快易通樣式） */
@media (min-width: 768px) {
  .voice-read-btn {
    display: flex;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 12px 16px;
    border: none;
    background: linear-gradient(135deg, #1a5fb4, #065450);
    color: #fff;
    font-size: var(--font-size-base);
    font-weight: 600;
  }

  .voice-read-btn:hover {
    background: linear-gradient(135deg, #144a8a, #043b38);
    border-color: transparent;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  }

  .voice-read-btn:focus-visible {
    background: var(--focus-bg-color, #FFDD00) !important;
    color: var(--focus-text-color, #2D3748) !important;
    outline: var(--focus-outline-width, 3px) solid var(--focus-outline-color, #FFDD00);
    outline-offset: var(--focus-outline-offset, 0px);
    box-shadow: none;
  }
}

/* ---- Real-time ER Status ---- */
.realtime-er-status {
  margin-top: var(--space-md);
}

.realtime-loading {
  text-align: center;
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
  padding: var(--space-md);
}

.realtime-na {
  text-align: center;
  color: var(--color-text-light);
  font-size: var(--font-size-xs);
  padding: var(--space-sm);
}

.er-status-card {
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
}

.er-status-card__header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--color-bg-secondary);
  font-size: var(--font-size-sm);
  font-weight: 600;
}

.er-status-card__badge {
  margin-left: auto;
  padding: 2px 10px;
  border-radius: var(--border-radius-pill);
  color: #fff;
  font-size: var(--font-size-xs);
  font-weight: 600;
}

.er-status-card__body {
  display: flex;
  justify-content: space-around;
  padding: 12px;
}

.er-status-card__metric {
  text-align: center;
}

.er-status-card__metric-label {
  display: block;
  font-size: var(--font-size-xs);
  color: var(--color-text-light);
}

.er-status-card__metric-value {
  display: block;
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-text);
}

.er-status-card__footer {
  display: flex;
  justify-content: space-between;
  padding: 6px 14px;
  background: var(--color-bg);
  font-size: 0.6875rem;
  color: var(--color-text-light);
  border-top: 1px solid var(--color-border);
}

/* ER Dashboard grid */
.er-dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--space-sm);
}

.er-dashboard-item {
  padding: 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  background: var(--color-bg-white);
  transition: box-shadow var(--transition-fast);
}

.er-dashboard-item:hover {
  box-shadow: var(--shadow-md);
}

.er-dashboard-item__name {
  font-weight: 600;
  font-size: var(--font-size-sm);
  margin-bottom: 2px;
}

.er-dashboard-item__county {
  font-size: var(--font-size-xs);
  color: var(--color-text-light);
  margin-bottom: 6px;
}

.er-dashboard-item__level {
  display: inline-block;
  padding: 2px 10px;
  border-radius: var(--border-radius-pill);
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: #fff;
  margin-bottom: 6px;
}

.er-level--low { background: #38B2AC; }
.er-level--moderate { background: #ED8936; }
.er-level--high { background: #FC8181; }
.er-level--critical { background: #E53E3E; }

.er-dashboard-item__stats {
  font-size: var(--font-size-xs);
  color: var(--color-text-light);
}

.er-dashboard-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--space-md);
  font-size: var(--font-size-xs);
  color: var(--color-text-light);
}

/* ---- Dashboard Analytics Charts ---- */
.charts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

.chart-card {
  background: var(--color-bg-white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  padding: var(--space-lg);
  transition: box-shadow var(--transition-base);
}

.chart-card:hover {
  box-shadow: var(--shadow-md);
}

.chart-card__title {
  font-size: var(--font-size-md);
  font-weight: 700;
  margin: 0 0 var(--space-md);
  color: var(--color-text);
}

.chart-card__body {
  position: relative;
  min-height: 260px;
}

.chart-half {
  grid-column: span 1;
}

.chart-full {
  grid-column: span 2;
}

.charts-loading {
  text-align: center;
  padding: var(--space-2xl);
}

.skeleton--chart {
  width: 100%;
  height: 200px;
  background: linear-gradient(90deg, var(--color-bg-secondary) 25%, var(--color-bg) 50%, var(--color-bg-secondary) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--border-radius-lg);
}

.charts-error {
  text-align: center;
  color: var(--color-danger);
  padding: var(--space-xl);
}

/* ---- Analytics Tab in Dashboard ---- */
.dashboard-analytics-section {
  padding: 0 var(--space-lg) var(--space-xl);
}

/* ---- Mobile responsive ---- */
@media (max-width: 767px) {
  .chatbot-panel {
    bottom: 0;
    right: 0;
    left: 0;
    width: 100%;
    max-height: 85vh;
    border-radius: var(--border-radius-xl) var(--border-radius-xl) 0 0;
  }

  .chatbot-fab {
    bottom: 16px;
    right: 16px;
    width: 52px;
    height: 52px;
  }

  .chatbot-fab__icon {
    font-size: 1.375rem;
  }

  .voice-control-bar {
    width: 100%;
    border-radius: 0;
    padding: 8px 16px;
  }

  .charts-grid {
    grid-template-columns: 1fr;
  }

  .chart-half, .chart-full {
    grid-column: span 1;
  }

  .er-dashboard-grid {
    grid-template-columns: 1fr;
  }

  /* 400%: chart-card 縮小 padding，限制寬度防溢出 */
  .chart-card {
    padding: var(--space-sm);
    overflow: hidden;
    max-width: 100%;
  }

  .chart-card__title {
    font-size: 0.75rem;
    margin-bottom: var(--space-sm);
    word-break: break-all;
  }

  .chart-card__body {
    min-height: 120px;
    max-width: 100%;
    overflow: hidden;
  }

  .chart-card__body canvas {
    max-width: 100% !important;
    height: auto !important;
  }

  /* 400%: 數據分析標題縮小 */
  #tab-analytics .dashboard-section-title {
    font-size: 0.8125rem;
    word-break: break-all;
  }

  /* 400%: 急診卡片文字縮小 */
  .er-card {
    padding: var(--space-xs) !important;
    font-size: 0.6875rem;
  }
  .er-card__name {
    font-size: 0.75rem !important;
  }
  .er-card__crowd {
    font-size: 0.6875rem !important;
  }
}

/* ---- High contrast mode ---- */
.high-contrast .chatbot-fab {
  background: #000;
  border: 2px solid #fff;
}

.high-contrast .chatbot-panel {
  border: 2px solid #000;
}

.high-contrast .chatbot-msg--user .chatbot-msg__content {
  background: #000;
  color: #fff;
}

.high-contrast .chatbot-msg--assistant .chatbot-msg__content {
  background: #f0f0f0;
  color: #000;
  border: 1px solid #000;
}

.high-contrast .chatbot-suggestion {
  border-color: #000;
  color: #000;
}

.high-contrast .voice-control-bar {
  background: #000;
  border: 2px solid #fff;
}

.high-contrast .er-status-card {
  border-color: #000;
}

.high-contrast .er-dashboard-item {
  border-color: #000;
}

.high-contrast .chart-card {
  border: 1px solid #000;
}

/* ---- Reduced motion ---- */
@media (prefers-reduced-motion: reduce) {
  .chatbot-fab {
    animation: none;
  }

  .chatbot-panel {
    transition: none;
  }

  .chatbot-msg {
    animation: none;
  }

  .chatbot-dots span {
    animation: none;
    opacity: 0.6;
  }

  .voice-control-bar {
    transition: none;
  }
}