/* 知図LP AI窓口ウィジェット */
.ask-fab {
  position: fixed; right: 20px; bottom: 20px; z-index: 60;
  display: inline-flex; align-items: center; gap: 10px;
  min-height: 52px; padding: 0 20px 0 16px; border: 1px solid var(--ink); border-radius: 999px;
  background: var(--ink); color: var(--rev); font-family: var(--jp); font-size: 14px; font-weight: 700; letter-spacing: 0.02em;
  cursor: pointer; box-shadow: 0 10px 30px rgba(16, 35, 38, 0.22);
  transition: transform 0.25s var(--ease), background-color 0.25s var(--ease), color 0.25s var(--ease);
}
.ask-fab:hover { transform: translateY(-2px); background: var(--white); color: var(--ink); }
.ask-fab .ask-dot { width: 8px; height: 8px; border-radius: 50%; background: currentColor; opacity: 0.85; }
.ask-fab[hidden] { display: none !important; }

.ask-panel {
  position: fixed; right: 20px; bottom: 20px; z-index: 70;
  width: min(420px, calc(100vw - 24px)); height: min(640px, calc(100vh - 40px));
  display: flex; flex-direction: column; background: var(--white); color: var(--ink);
  border: 1px solid var(--ink-faint); box-shadow: 0 24px 60px rgba(16, 35, 38, 0.25);
  font-family: var(--jp); font-size: 14.5px; line-height: 1.75;
}
.ask-panel[hidden] { display: none !important; }
.ask-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; padding: 16px 18px 12px; border-bottom: 1px solid var(--ink-ghost); background: var(--paper); }
.ask-head h2 { font-size: 15px; font-weight: 700; line-height: 1.4; }
.ask-head p { font-size: 12px; color: var(--ink-mid); line-height: 1.5; margin-top: 4px; }
.ask-close { flex: none; width: 36px; height: 36px; border: 1px solid var(--ink-faint); background: transparent; color: var(--ink); cursor: pointer; font-size: 18px; line-height: 1; }
.ask-close:hover { background: var(--ink); color: var(--rev); }

.ask-log { flex: 1; overflow-y: auto; padding: 16px 18px; display: flex; flex-direction: column; gap: 12px; scroll-behavior: smooth; }
.ask-msg { max-width: 92%; padding: 10px 14px; white-space: pre-wrap; overflow-wrap: anywhere; }
.ask-msg.user { align-self: flex-end; background: var(--ink); color: var(--rev); }
.ask-msg.ai { align-self: flex-start; background: var(--paper); color: var(--ink); }
.ask-msg.ai.error { background: #fbf1f1; color: #7a1a1a; }
.ask-msg.thinking { color: var(--ink-mid); font-size: 13px; }

.ask-chips { display: flex; flex-wrap: wrap; gap: 8px; padding: 0 18px 10px; }
.ask-chip { border: 1px solid var(--ink-faint); background: var(--white); color: var(--ink); padding: 6px 12px; font-size: 12.5px; cursor: pointer; font-family: var(--jp); }
.ask-chip:hover { background: var(--ink); color: var(--rev); border-color: var(--ink); }

.ask-form { display: flex; gap: 8px; padding: 10px 18px 8px; border-top: 1px solid var(--ink-ghost); }
.ask-form textarea { flex: 1; resize: none; min-height: 44px; max-height: 120px; padding: 10px 12px; border: 1px solid var(--ink-faint); font-family: var(--jp); font-size: 14px; line-height: 1.5; background: var(--white); color: var(--ink); }
.ask-form button { flex: none; min-width: 64px; border: 1px solid var(--ink); background: var(--ink); color: var(--rev); font-family: var(--jp); font-weight: 700; font-size: 14px; cursor: pointer; }
.ask-form button:disabled { opacity: 0.5; cursor: wait; }
.ask-form button:hover:not(:disabled) { background: var(--white); color: var(--ink); }

.ask-foot { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px; padding: 0 18px 14px; }
.ask-foot small { font-size: 11px; color: var(--ink-mid); line-height: 1.5; flex: 1 1 200px; }
.ask-handoff { border: 1px solid var(--ink); background: transparent; color: var(--ink); padding: 8px 14px; font-family: var(--jp); font-size: 13px; font-weight: 700; cursor: pointer; }
.ask-handoff:hover { background: var(--ink); color: var(--rev); }

@media (max-width: 640px) {
  .ask-panel { right: 0; bottom: 0; width: 100vw; height: 100dvh; border: 0; }
  .ask-fab { right: 14px; bottom: 14px; }
}
@media (prefers-reduced-motion: reduce) { .ask-fab, .ask-log { transition: none; scroll-behavior: auto; } }