/* ═══════════════════════════════════════════════════════════════
   AI コンシェルジェ — chatbot concierge (mock scripted)
   Shared styles — linked from index.html and floor-guide.html
   ═══════════════════════════════════════════════════════════════ */

/* FAB */
.chat-fab {
  position: fixed;
  right: 24px; bottom: 24px;
  height: 56px;
  padding: 0 22px 0 18px;
  background: var(--ichii-green);
  color: #fff;
  border: none;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-jp);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  cursor: pointer;
  box-shadow: 0 12px 32px -8px rgba(46,99,22,0.45), 0 4px 10px -4px rgba(0,0,0,0.15);
  transition: all 0.25s var(--ease-out);
  z-index: 95;
}
.chat-fab::before {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 999px;
  border: 2px solid var(--ichii-green-hover);
  opacity: 0;
  animation: fabPulse 2.6s ease-out infinite;
  pointer-events: none;
}
@keyframes fabPulse {
  0%   { opacity: 0.75; transform: scale(0.95); }
  70%  { opacity: 0;    transform: scale(1.15); }
  100% { opacity: 0;    transform: scale(1.15); }
}
.chat-fab:hover {
  background: var(--ichii-green-deep);
  transform: translateY(-2px);
  box-shadow: 0 16px 40px -8px rgba(46,99,22,0.55), 0 6px 12px -4px rgba(0,0,0,0.2);
}
.chat-fab svg { width: 22px; height: 22px; }
.chat-fab .fab-label { white-space: nowrap; }
body.chat-open .chat-fab,
body.nav-open .chat-fab { opacity: 0; pointer-events: none; transform: translateY(10px); }

/* Chat panel */
.chat-panel {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: 400px;
  max-width: 100vw;
  background: #fff;
  box-shadow: -24px 0 60px -12px rgba(0,0,0,0.28);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  visibility: hidden;
  transition: transform 0.42s var(--ease-out), visibility 0s linear 0.42s;
  z-index: 120;
}
.chat-panel.open {
  transform: translateX(0);
  visibility: visible;
  transition: transform 0.42s var(--ease-out), visibility 0s linear 0s;
}

/* Chat header */
.chat-panel-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 20px;
  background: linear-gradient(135deg, var(--ichii-green) 0%, var(--ichii-green-deep) 100%);
  color: #fff;
  flex-shrink: 0;
  position: relative;
}
.chat-avatar {
  width: 42px; height: 42px;
  border-radius: 50%;
  background: rgba(255,255,255,0.18);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 2px solid rgba(255,255,255,0.3);
  flex-shrink: 0;
  overflow: hidden;
}
.chat-avatar svg { width: 22px; height: 22px; color: #fff; }
.chat-title {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.chat-title strong {
  font-family: var(--font-jp-display, var(--font-jp));
  font-size: 14.5px;
  font-weight: 700;
  letter-spacing: 0.06em;
}
.chat-title .chat-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 10px;
  letter-spacing: 0.18em;
  opacity: 0.85;
  font-family: var(--font-latin);
  text-transform: uppercase;
}
.chat-status::before {
  content: "";
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #6edc3a;
  box-shadow: 0 0 0 2px rgba(110,220,58,0.35);
  animation: statusPulse 2s ease-in-out infinite;
}
@keyframes statusPulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.5; }
}
.chat-close {
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.3);
  background: transparent;
  color: #fff;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  flex-shrink: 0;
  padding: 0;
}
.chat-close:hover { background: rgba(255,255,255,0.16); transform: rotate(90deg); }
.chat-close svg { width: 14px; height: 14px; }

/* Messages area */
.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 20px 20px 10px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: #faf8f2;
  scroll-behavior: smooth;
}
.chat-messages::-webkit-scrollbar { width: 6px; }
.chat-messages::-webkit-scrollbar-track { background: transparent; }
.chat-messages::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.14); border-radius: 3px; }

/* Message bubbles */
.msg {
  max-width: 82%;
  padding: 12px 16px;
  border-radius: 18px;
  font-family: var(--font-jp);
  font-size: 13.5px;
  line-height: 1.7;
  letter-spacing: 0.01em;
  white-space: pre-wrap;
  word-break: break-word;
  animation: msgIn 0.32s var(--ease-out);
}
@keyframes msgIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}
.msg.bot {
  background: #fff;
  color: var(--ichii-ink);
  border: 1px solid var(--ichii-mist);
  align-self: flex-start;
  border-bottom-left-radius: 6px;
}
.msg.user {
  background: var(--ichii-green);
  color: #fff;
  align-self: flex-end;
  border-bottom-right-radius: 6px;
}
.msg-timestamp {
  font-family: var(--font-latin);
  font-size: 10px;
  color: var(--ichii-ink-soft);
  letter-spacing: 0.1em;
  margin-top: -6px;
  align-self: flex-start;
  padding-left: 6px;
}
.msg-timestamp.user { align-self: flex-end; padding-right: 6px; padding-left: 0; }

/* Typing indicator */
.msg-typing {
  align-self: flex-start;
  padding: 14px 18px;
  background: #fff;
  border: 1px solid var(--ichii-mist);
  border-radius: 18px;
  border-bottom-left-radius: 6px;
  display: inline-flex;
  gap: 5px;
  animation: msgIn 0.32s var(--ease-out);
}
.msg-typing span {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--ichii-green-deep);
  opacity: 0.35;
  animation: typeBounce 1.2s ease-in-out infinite;
}
.msg-typing span:nth-child(2) { animation-delay: 0.15s; }
.msg-typing span:nth-child(3) { animation-delay: 0.3s; }
@keyframes typeBounce {
  0%, 60%, 100% { opacity: 0.3; transform: translateY(0); }
  30%           { opacity: 1;   transform: translateY(-4px); }
}

/* Chips */
.chat-chips-row {
  padding: 0 18px 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  background: #faf8f2;
  flex-shrink: 0;
  min-height: 0;
}
.chat-chips-row:empty { padding: 0; }
.chat-chip {
  background: #fff;
  border: 1px solid var(--ichii-mist);
  color: var(--ichii-green-deep);
  padding: 9px 14px;
  border-radius: 999px;
  font-family: var(--font-jp);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  letter-spacing: 0.02em;
}
.chat-chip:hover, .chat-chip:focus-visible {
  background: var(--ichii-green);
  color: #fff;
  border-color: var(--ichii-green);
  transform: translateY(-1px);
}

/* Input row */
.chat-input-row {
  display: flex;
  gap: 8px;
  padding: 12px 16px 16px;
  background: #fff;
  border-top: 1px solid var(--ichii-mist);
  flex-shrink: 0;
  align-items: center;
}
.chat-input {
  flex: 1;
  padding: 12px 16px;
  border: 1px solid var(--ichii-mist);
  border-radius: 999px;
  background: #faf8f2;
  font-family: var(--font-jp);
  font-size: 13.5px;
  color: var(--ichii-ink);
  outline: none;
  transition: all 0.2s ease;
  width: 100%;
  min-width: 0;
}
.chat-input:focus {
  border-color: var(--ichii-green);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(46,99,22,0.08);
}
.chat-input::placeholder { color: var(--ichii-ink-soft); }
.chat-send {
  width: 42px; height: 42px;
  background: var(--ichii-green);
  color: #fff;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  flex-shrink: 0;
  padding: 0;
}
.chat-send:hover:not(:disabled) { background: var(--ichii-green-deep); transform: translateY(-1px); }
.chat-send:disabled { opacity: 0.35; cursor: default; }
.chat-send svg { width: 18px; height: 18px; }

/* Chat backdrop */
body.chat-open::before {
  content: "";
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.42);
  z-index: 110;
  animation: fadeIn 0.3s ease;
}
body.chat-open { overflow: hidden; }

/* Mobile: bottom sheet */
@media (max-width: 640px) {
  .chat-panel {
    top: auto;
    left: 0; right: 0; bottom: 0;
    width: 100vw;
    height: 85vh;
    max-height: 85vh;
    border-top-left-radius: 20px;
    border-top-right-radius: 20px;
    transform: translateY(100%);
    box-shadow: 0 -16px 40px -8px rgba(0,0,0,0.28);
  }
  .chat-panel.open { transform: translateY(0); }
  .chat-panel-header::before {
    content: "";
    position: absolute;
    top: 6px; left: 50%;
    transform: translateX(-50%);
    width: 40px; height: 4px;
    background: rgba(255,255,255,0.35);
    border-radius: 2px;
  }
  .chat-fab {
    right: 16px; bottom: 16px;
    height: 52px;
    padding: 0 18px 0 16px;
    font-size: 12px;
  }
  .chat-fab svg { width: 20px; height: 20px; }
}
/* Tablet portrait: narrower panel */
@media (min-width: 641px) and (max-width: 900px) {
  .chat-panel { width: 380px; }
}