/* =========================================================
   Faperia — chat-widget.css
   AI chat widget. All classes scoped under .fp-chat-*.
   Consumes the existing :root variables from styles.css.
   ========================================================= */

.fp-chat,
.fp-chat *,
.fp-chat *::before,
.fp-chat *::after { box-sizing: border-box; }

.fp-chat {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
}

/* ---------- Floating action button ---------- */
.fp-chat-fab {
  position: fixed;
  right: 22px;
  bottom: 22px;
  width: 58px;
  height: 58px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 0;
  cursor: pointer;
  box-shadow: 0 14px 32px -10px rgba(160, 78, 45, 0.45),
              0 4px 10px -2px rgba(30, 37, 48, 0.12);
  z-index: 8500;
  transition: transform var(--t-fast), background var(--t-base), box-shadow var(--t-base);
}
.fp-chat-fab:hover {
  background: var(--accent-deep);
  transform: translateY(-2px);
  box-shadow: 0 18px 38px -10px rgba(160, 78, 45, 0.55),
              0 6px 14px -2px rgba(30, 37, 48, 0.15);
}
.fp-chat-fab:focus-visible {
  outline: 2px solid var(--bg);
  outline-offset: 3px;
  box-shadow: 0 0 0 5px rgba(200, 100, 60, 0.45);
}
.fp-chat-fab svg {
  width: 24px;
  height: 24px;
  stroke: currentColor;
  stroke-width: 1.8;
  fill: none;
}

.fp-chat[data-state="open"] .fp-chat-fab {
  opacity: 0;
  pointer-events: none;
  transform: scale(0.85);
}

/* ---------- Panel ---------- */
.fp-chat-panel {
  position: fixed;
  right: 22px;
  bottom: 22px;
  width: 384px;
  height: min(640px, calc(100vh - 44px));
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: 0 36px 80px -28px rgba(30, 37, 48, 0.35),
              0 12px 24px -6px rgba(30, 37, 48, 0.12);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  z-index: 8600;
  opacity: 0;
  transform: translateY(18px) scale(0.98);
  pointer-events: none;
  transition: opacity 240ms cubic-bezier(.2,.7,.2,1),
              transform 240ms cubic-bezier(.2,.7,.2,1);
}
.fp-chat[data-state="open"] .fp-chat-panel {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

/* ---------- Header ---------- */
.fp-chat-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 18px 16px;
  border-bottom: 1px solid var(--line);
  background: var(--bg);
  flex-shrink: 0;
}
.fp-chat-avatar {
  width: 34px;
  height: 34px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.86rem;
  letter-spacing: -0.02em;
  flex-shrink: 0;
}
.fp-chat-title-block { flex: 1; min-width: 0; }
.fp-chat-title {
  font-size: 0.96rem;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.01em;
  line-height: 1.2;
}
.fp-chat-subtitle {
  font-size: 0.78rem;
  color: var(--muted);
  margin-top: 2px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.fp-chat-subtitle::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: #6FB57A;
  box-shadow: 0 0 0 3px rgba(111, 181, 122, 0.18);
}
.fp-chat-close {
  width: 32px;
  height: 32px;
  border-radius: 999px;
  background: transparent;
  border: 0;
  color: var(--ink-soft);
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--t-fast), color var(--t-fast);
  flex-shrink: 0;
}
.fp-chat-close:hover {
  background: var(--bg-alt);
  color: var(--ink);
}

/* ---------- Disclaimer banner ---------- */
.fp-chat-disclaimer-banner {
  padding: 12px 18px;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--line);
  font-size: 0.82rem;
  color: var(--ink-soft);
  line-height: 1.5;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  flex-shrink: 0;
}
.fp-chat-disclaimer-banner[hidden] { display: none; }
.fp-chat-disclaimer-text { flex: 1; }
.fp-chat-disclaimer-dismiss {
  background: transparent;
  border: 0;
  color: var(--muted);
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  padding: 2px 4px;
  border-radius: 4px;
  transition: color var(--t-fast);
  flex-shrink: 0;
}
.fp-chat-disclaimer-dismiss:hover { color: var(--ink); }

/* ---------- Messages ---------- */
.fp-chat-msgs {
  flex: 1;
  overflow-y: auto;
  padding: 18px 18px 8px;
  margin: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  scroll-behavior: smooth;
  overscroll-behavior: contain;
}
.fp-chat-msgs::-webkit-scrollbar { width: 8px; }
.fp-chat-msgs::-webkit-scrollbar-thumb {
  background: var(--line);
  border-radius: 999px;
}
.fp-chat-msgs::-webkit-scrollbar-thumb:hover { background: var(--muted); }

.fp-chat-msg {
  display: flex;
  flex-direction: column;
  max-width: 86%;
}
.fp-chat-msg[data-role="user"] {
  align-self: flex-end;
  align-items: flex-end;
}
.fp-chat-msg[data-role="assistant"] {
  align-self: flex-start;
  align-items: flex-start;
}
.fp-chat-bubble {
  padding: 11px 15px;
  border-radius: 18px;
  font-size: 0.95rem;
  line-height: 1.5;
  white-space: pre-wrap;
  word-wrap: break-word;
  overflow-wrap: anywhere;
}
.fp-chat-msg[data-role="user"] .fp-chat-bubble {
  background: var(--ink);
  color: var(--bg);
  border-bottom-right-radius: 6px;
}
.fp-chat-msg[data-role="assistant"] .fp-chat-bubble {
  background: var(--white);
  color: var(--ink);
  border: 1px solid var(--line);
  border-bottom-left-radius: 6px;
}
.fp-chat-msg[data-role="assistant"] .fp-chat-bubble strong { color: var(--ink); font-weight: 600; }
.fp-chat-msg[data-role="assistant"] .fp-chat-bubble a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: rgba(200, 100, 60, 0.35);
  text-underline-offset: 2px;
}
.fp-chat-msg[data-role="assistant"] .fp-chat-bubble a:hover {
  text-decoration-color: var(--accent);
}

.fp-chat-msg-error .fp-chat-bubble {
  background: rgba(200, 100, 60, 0.08);
  border-color: rgba(200, 100, 60, 0.3);
  color: var(--accent-deep);
}

/* Typing indicator */
.fp-chat-typing {
  display: inline-flex;
  gap: 4px;
  align-items: center;
  padding: 4px 0;
}
.fp-chat-typing span {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--muted);
  animation: fp-chat-blink 1.2s infinite ease-in-out;
}
.fp-chat-typing span:nth-child(2) { animation-delay: 0.18s; }
.fp-chat-typing span:nth-child(3) { animation-delay: 0.36s; }
@keyframes fp-chat-blink {
  0%, 60%, 100% { opacity: 0.25; transform: translateY(0); }
  30% { opacity: 1; transform: translateY(-2px); }
}

/* ---------- Suggestion chips (initial greeting) ---------- */
.fp-chat-suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}
.fp-chat-chip {
  font-family: inherit;
  font-size: 0.84rem;
  color: var(--ink-soft);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 13px;
  cursor: pointer;
  transition: background var(--t-fast), border-color var(--t-fast), color var(--t-fast);
}
.fp-chat-chip:hover {
  background: var(--bg-alt);
  border-color: var(--accent);
  color: var(--ink);
}

/* ---------- Input ---------- */
.fp-chat-input {
  display: flex;
  gap: 8px;
  align-items: flex-end;
  padding: 12px 14px 14px;
  border-top: 1px solid var(--line);
  background: var(--bg);
  flex-shrink: 0;
}
.fp-chat-input textarea {
  flex: 1;
  font-family: inherit;
  font-size: 0.95rem;
  line-height: 1.45;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 10px 14px;
  resize: none;
  max-height: 140px;
  min-height: 40px;
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}
.fp-chat-input textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(200, 100, 60, 0.12);
}
.fp-chat-input textarea:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}
.fp-chat-send {
  width: 40px;
  height: 40px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--bg);
  border: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: background var(--t-fast), transform var(--t-fast), opacity var(--t-fast);
}
.fp-chat-send:hover:not(:disabled) {
  background: var(--accent-deep);
  transform: translateY(-1px);
}
.fp-chat-send:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.fp-chat-send svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
}

/* ---------- Footer note ---------- */
.fp-chat-footer-note {
  font-size: 0.74rem;
  color: var(--muted);
  text-align: center;
  padding: 0 18px 10px;
  margin: 0;
  letter-spacing: 0.01em;
  flex-shrink: 0;
}

/* ---------- Mobile fullscreen (<768px) ---------- */
@media (max-width: 768px) {
  .fp-chat-fab {
    right: 16px;
    bottom: 16px;
    width: 54px;
    height: 54px;
  }
  .fp-chat-panel {
    right: 0;
    bottom: 0;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    height: 100dvh;
    border-radius: 0;
    border: 0;
  }
  .fp-chat-header { padding: 16px 16px 14px; }
  .fp-chat-msgs { padding: 16px 16px 6px; }
  .fp-chat-input { padding: 10px 12px 14px; padding-bottom: max(14px, env(safe-area-inset-bottom)); }
  .fp-chat-disclaimer-banner { padding: 11px 16px; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  .fp-chat-panel {
    transition: opacity 100ms linear;
    transform: none;
  }
  .fp-chat[data-state="open"] .fp-chat-panel { transform: none; }
  .fp-chat-fab:hover { transform: none; }
  .fp-chat-send:hover:not(:disabled) { transform: none; }
  .fp-chat-typing span { animation: none; opacity: 0.6; }
  .fp-chat-msgs { scroll-behavior: auto; }
}

/* ---------- Handoff (talk-to-a-human) ---------- */
.fp-chat-handoff-btn {
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--ink-soft);
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 11px;
  cursor: pointer;
  transition: background var(--t-fast), color var(--t-fast), border-color var(--t-fast);
  flex-shrink: 0;
  white-space: nowrap;
}
.fp-chat-handoff-btn:hover {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}
.fp-chat-handoff-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.fp-chat-handoff {
  flex: 1;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  padding: 22px 20px 20px;
  overflow-y: auto;
  animation: fp-handoff-in 240ms cubic-bezier(.2,.7,.2,1);
}
.fp-chat-handoff[hidden] { display: none; }

@keyframes fp-handoff-in {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

.fp-chat-handoff-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.01em;
  margin: 0 0 8px;
}
.fp-chat-handoff-intro {
  font-size: 0.92rem;
  line-height: 1.5;
  color: var(--ink-soft);
  margin: 0 0 18px;
}

.fp-chat-handoff-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.fp-chat-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.fp-chat-field-label {
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}
.fp-chat-field input,
.fp-chat-field textarea {
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 12px;
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}
.fp-chat-field textarea {
  resize: vertical;
  min-height: 70px;
  line-height: 1.45;
}
.fp-chat-field input:focus,
.fp-chat-field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(200, 100, 60, 0.12);
}

.fp-chat-handoff-error {
  margin: 0;
  font-size: 0.88rem;
  color: var(--accent-deep);
  background: rgba(200, 100, 60, 0.08);
  border: 1px solid rgba(200, 100, 60, 0.3);
  border-radius: 10px;
  padding: 8px 12px;
}

.fp-chat-handoff-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 6px;
}
.fp-chat-handoff-cancel,
.fp-chat-handoff-submit,
.fp-chat-handoff-success-close {
  font-family: inherit;
  font-size: 0.92rem;
  font-weight: 500;
  border-radius: 999px;
  padding: 10px 18px;
  cursor: pointer;
  transition: background var(--t-fast), color var(--t-fast), border-color var(--t-fast), transform var(--t-fast);
  border: 1px solid transparent;
}
.fp-chat-handoff-cancel {
  background: transparent;
  color: var(--ink-soft);
  border-color: var(--line);
}
.fp-chat-handoff-cancel:hover:not(:disabled) {
  border-color: var(--ink);
  color: var(--ink);
}
.fp-chat-handoff-submit {
  background: var(--accent);
  color: var(--bg);
}
.fp-chat-handoff-submit:hover:not(:disabled) {
  background: var(--accent-deep);
  transform: translateY(-1px);
}
.fp-chat-handoff-submit:disabled,
.fp-chat-handoff-cancel:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

/* Success state */
.fp-chat-handoff-success {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 28px 12px 0;
  gap: 12px;
}
.fp-chat-handoff-success[hidden] { display: none; }
.fp-chat-handoff-success-icon {
  width: 56px;
  height: 56px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  font-weight: 600;
}
.fp-chat-handoff-success-title {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--ink);
  margin: 4px 0 0;
}
.fp-chat-handoff-success-body {
  font-size: 0.95rem;
  color: var(--ink-soft);
  margin: 0 0 12px;
  line-height: 1.5;
  max-width: 320px;
}
.fp-chat-handoff-success-close {
  background: var(--ink);
  color: var(--bg);
}
.fp-chat-handoff-success-close:hover {
  background: var(--ink-soft);
}

/* Mobile tweaks for handoff */
@media (max-width: 768px) {
  .fp-chat-handoff { padding: 18px 16px 16px; }
  .fp-chat-handoff-btn {
    font-size: 0.78rem;
    padding: 5px 10px;
  }
}

/* When in handoff mode, hide the chat content underneath */
.fp-chat[data-mode="handoff"] .fp-chat-msgs,
.fp-chat[data-mode="handoff"] .fp-chat-input,
.fp-chat[data-mode="handoff"] .fp-chat-footer-note,
.fp-chat[data-mode="handoff"] .fp-chat-disclaimer-banner {
  display: none;
}

@media (prefers-reduced-motion: reduce) {
  .fp-chat-handoff { animation: none; }
  .fp-chat-handoff-submit:hover:not(:disabled) { transform: none; }
}