/* Will Next FAQ chatbot */
#chatbot-button,
#chatbot-window,
#chatbot-window * {
  box-sizing: border-box;
}

#chatbot-button {
  position: fixed;
  right: 1.25rem;
  bottom: max(1.25rem, env(safe-area-inset-bottom));
  z-index: 1000;
  display: inline-flex;
  min-width: 9.5rem;
  min-height: 3.5rem;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.75rem 1.05rem;
  border: 1px solid rgba(255, 255, 255, 0.42);
  border-radius: 9999px;
  background: #27769b;
  color: #fff;
  box-shadow: 0 14px 32px rgba(26, 48, 80, 0.28);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1;
  transition: background 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

#chatbot-button:hover {
  background: #1e6382;
  box-shadow: 0 18px 36px rgba(26, 48, 80, 0.34);
  transform: translateY(-2px);
}

#chatbot-button__icon {
  font-size: 1.15rem;
  line-height: 1;
}

#chatbot-window {
  position: fixed;
  right: 1.25rem;
  bottom: 5.5rem;
  z-index: 1000;
  display: none;
  width: min(23rem, calc(100vw - 2.5rem));
  height: min(35rem, calc(100vh - 7.5rem));
  overflow: hidden;
  flex-direction: column;
  border: 1px solid rgba(39, 118, 155, 0.24);
  border-radius: 1rem;
  background: #fff;
  color: #2a2a2a;
  box-shadow: 0 24px 64px rgba(26, 48, 80, 0.3);
  font-family: inherit;
}

#chatbot-header {
  display: flex;
  min-height: 4.25rem;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.75rem 0.75rem 0.75rem 1rem;
  background: #1a3050;
  color: #fff;
}

#chatbot-title-group {
  min-width: 0;
}

#chatbot-title {
  display: block;
  font-family: "Noto Serif JP", serif;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

#chatbot-subtitle {
  display: block;
  margin-top: 0.2rem;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.68rem;
  line-height: 1.4;
}

#chatbot-close {
  display: grid;
  width: 2.75rem;
  height: 2.75rem;
  flex: 0 0 auto;
  place-items: center;
  padding: 0;
  border: 0;
  border-radius: 9999px;
  background: rgba(255, 255, 255, 0.1);
  color: inherit;
  cursor: pointer;
  font-family: inherit;
  font-size: 1.1rem;
  font-weight: 700;
}

#chatbot-close:hover {
  background: rgba(255, 255, 255, 0.2);
}

#chatbot-button:focus-visible,
#chatbot-close:focus-visible,
#chatbot-window .choice-btn:focus-visible,
#chatbot-window .action-link:focus-visible,
#chatbot-send:focus-visible,
#chatbot-input:focus-visible {
  outline: 3px solid #8a6c42;
  outline-offset: 3px;
}

#chatbot-messages {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 0.7rem;
  min-height: 0;
  padding: 1rem;
  overflow-y: auto;
  background: #f5f7f9;
  overscroll-behavior: contain;
}

#chatbot-window .message {
  max-width: 88%;
  padding: 0.72rem 0.8rem;
  border-radius: 0.75rem;
  font-size: 0.84rem;
  line-height: 1.7;
  overflow-wrap: anywhere;
}

#chatbot-window .message p {
  margin: 0;
}

#chatbot-window .message p + p {
  margin-top: 0.55rem;
}

#chatbot-window .message.bot {
  align-self: flex-start;
  border: 1px solid rgba(39, 118, 155, 0.12);
  border-bottom-left-radius: 0.2rem;
  background: #fff;
  color: #2a2a2a;
}

#chatbot-window .message.user {
  align-self: flex-end;
  border-bottom-right-radius: 0.2rem;
  background: #27769b;
  color: #fff;
}

#chatbot-window .choice-btn {
  display: block;
  width: 100%;
  min-height: 2.75rem;
  margin-top: 0.45rem;
  padding: 0.6rem 0.7rem;
  border: 1px solid rgba(39, 118, 155, 0.58);
  border-radius: 0.55rem;
  background: #fff;
  color: #1e6382;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.78rem;
  font-weight: 600;
  line-height: 1.45;
  text-align: left;
}

#chatbot-window .choice-btn:hover {
  background: #edf5f8;
}

#chatbot-window .action-link {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  justify-content: center;
  margin-top: 0.7rem;
  padding: 0.55rem 0.85rem;
  border-radius: 0.55rem;
  background: #8a6c42;
  color: #fff;
  font-size: 0.78rem;
  font-weight: 700;
  text-decoration: none;
}

#chatbot-window .action-link:hover {
  background: #6f532f;
}

#chatbot-input-area {
  display: flex;
  gap: 0.4rem;
  padding: 0.7rem;
  border-top: 1px solid rgba(39, 118, 155, 0.18);
  background: #fff;
}

#chatbot-input {
  min-width: 0;
  flex: 1;
  min-height: 2.75rem;
  padding: 0.65rem 0.7rem;
  border: 1px solid #b8c3cf;
  border-radius: 0.55rem;
  background: #fff;
  color: #2a2a2a;
  font-family: inherit;
  font-size: 0.84rem;
}

#chatbot-input::placeholder {
  color: #6b7888;
}

#chatbot-input:focus {
  border-color: #27769b;
}

#chatbot-send {
  min-width: 4.2rem;
  min-height: 2.75rem;
  padding: 0 0.8rem;
  border: 0;
  border-radius: 0.55rem;
  background: #27769b;
  color: #fff;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 700;
}

#chatbot-send:hover {
  background: #1e6382;
}

/* The existing page-top button remains visible above the FAQ launcher. */
.back-to-top {
  bottom: 6rem;
}

.chatbot-open .back-to-top {
  opacity: 0;
  pointer-events: none;
}

@media (max-width: 480px) {
  #chatbot-button {
    right: 1rem;
    bottom: max(1rem, env(safe-area-inset-bottom));
    min-width: 8.75rem;
    min-height: 3.25rem;
    padding-inline: 0.9rem;
    font-size: 0.82rem;
  }

  #chatbot-window {
    inset: 0;
    width: 100%;
    height: 100vh;
    height: 100dvh;
    border: 0;
    border-radius: 0;
  }

  #chatbot-header {
    padding-top: max(0.75rem, env(safe-area-inset-top));
  }

  #chatbot-input-area {
    padding-bottom: max(0.7rem, env(safe-area-inset-bottom));
  }

  .back-to-top {
    bottom: 5.25rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  #chatbot-button {
    transition: none;
  }
}