/* =========================================================================
   PIC Assistance: FAQ chatbot styles. Everything is prefixed .pic-chat.
   Uses the site tokens from css/style.css (light + dark): same font,
   same near-square radius, paper/bluestone/teal palette.
   z-index stays below the mobile menu (99) and header (100).
   ========================================================================= */
.pic-chat {
  --pic-chat-dot: var(--brand);
  position: fixed;
  right: max(16px, env(safe-area-inset-right));
  /* Lifted to clear the Netlify badge in the bottom-right corner (~60px tall) */
  bottom: calc(76px + env(safe-area-inset-bottom, 0px));
  z-index: 90;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--text);
}
.pic-chat *, .pic-chat *::before, .pic-chat *::after { box-sizing: border-box; }
.pic-chat svg { display: block; width: 100%; height: 100%; }
.pic-chat [hidden] { display: none !important; }
.nav-open .pic-chat { display: none; }

.pic-chat-visually-hidden {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---------- Launcher ---------- */
.pic-chat-launcher {
  display: grid; place-items: center;
  width: 56px; height: 56px; padding: 0; margin: 0;
  border: 0; border-radius: var(--radius);
  background: var(--brand); color: var(--on-brand);
  /* taste-skill-ignore: floating launcher */ box-shadow: var(--shadow);
  cursor: pointer;
  transition: transform var(--dur-1, 120ms) var(--ease), background-color var(--dur-2, 200ms) var(--ease);
}
.pic-chat-launcher:hover { background: var(--brand-strong); }
.pic-chat-launcher:active { transform: scale(0.96); }
.pic-chat-launcher:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }
.pic-chat-launcher > span {
  grid-area: 1 / 1; width: 28px; height: 28px;
  transition: opacity var(--dur-2, 200ms) var(--ease), transform var(--dur-2, 200ms) var(--ease);
}
.pic-chat-launcher .pic-chat-ico-open { --pic-chat-dot: var(--brand); }
.pic-chat-launcher .pic-chat-ico-open svg path { fill: var(--on-brand); }
/* Both icons share one cell and cross-fade: chat bubble <-> close */
.pic-chat-launcher .pic-chat-ico-close { width: 24px; height: 24px; opacity: 0; transform: scale(0.6); }
.pic-chat-is-open .pic-chat-launcher .pic-chat-ico-open { opacity: 0; transform: scale(0.6); }
.pic-chat-is-open .pic-chat-launcher .pic-chat-ico-close { opacity: 1; transform: none; }

/* ---------- Panel ---------- */
.pic-chat-panel {
  position: absolute; right: 0; bottom: calc(56px + 12px);
  display: flex; flex-direction: column;
  width: min(380px, calc(100vw - 32px));
  /* 170px = launcher offset 76 + launcher 56 + gap 12 + 26 breathing room under the header */
  height: min(580px, calc(100vh - var(--header-h) - 170px));
  height: min(580px, calc(100dvh - var(--header-h) - 170px));
  margin: 0; padding: 0;
  background: var(--surface);
  /* taste-skill-ignore: floating panel edge */ border: 1px solid var(--border);
  border-radius: var(--radius);
  /* taste-skill-ignore: floating panel */ box-shadow: var(--shadow);
  overflow: hidden;
  /* Grows out of the launcher (bottom right). Transitions, not keyframes, so
     open/close retarget mid-way; the second declaration adds the exit (display
     stays on until the fade ends) where allow-discrete is supported. */
  transform-origin: bottom right;
  transition: opacity var(--dur-2, 200ms) var(--ease), transform var(--dur-2, 200ms) var(--ease);
  transition: opacity var(--dur-2, 200ms) var(--ease), transform var(--dur-2, 200ms) var(--ease), display var(--dur-2, 200ms) allow-discrete;
}
@starting-style { .pic-chat-panel { opacity: 0; transform: translateY(8px) scale(0.98); } }
.pic-chat .pic-chat-panel[hidden] {
  opacity: 0; transform: translateY(8px) scale(0.98); pointer-events: none;
  transition-duration: var(--dur-1, 120ms);
}

.pic-chat-head {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 12px 12px 14px;
  background: var(--stone, var(--brand)); color: var(--on-stone, var(--on-brand));
  --focus: var(--on-stone, #fff);
}
.pic-chat-avatar {
  display: grid; place-items: center; flex: none;
  width: 36px; height: 36px; border-radius: var(--radius);
  background: var(--folder, var(--on-brand)); color: var(--on-folder, var(--brand));
  font-size: 0.72rem; font-weight: 800; letter-spacing: 0.02em;
}
.pic-chat-titles { flex: 1; min-width: 0; }
.pic-chat-title { margin: 0; font-weight: 700; letter-spacing: -0.01em; font-size: 1rem; line-height: 1.25; }
.pic-chat-sub { margin: 0; font-size: 0.78rem; line-height: 1.3; opacity: 0.88; }
.pic-chat-close {
  display: grid; place-items: center; flex: none;
  width: 36px; height: 36px; padding: 8px; margin: 0;
  border: 0; border-radius: var(--radius); background: transparent; color: inherit; cursor: pointer;
  transition: background-color var(--dur-1, 120ms) var(--ease), transform var(--dur-1, 120ms) var(--ease);
}
.pic-chat-close:hover { background: rgba(255, 255, 255, 0.16); }
.pic-chat-close:focus-visible { outline: 3px solid var(--focus); outline-offset: 1px; }

/* ---------- Teaser bubble (above the launcher, once per session) ---------- */
.pic-chat-teaser {
  position: absolute; right: 0; bottom: calc(56px + 12px);
  display: flex; align-items: flex-start;
  width: max-content;
  max-width: min(272px, calc(100vw - 32px));
  background: var(--sheet, var(--surface)); color: var(--text);
  /* taste-skill-ignore: floating bubble edge */ border: 1px solid var(--border);
  border-radius: var(--radius);
  /* taste-skill-ignore: floating bubble */ box-shadow: var(--shadow);
  opacity: 0; transform: translateY(6px);
  transform-origin: bottom right;
  transition: opacity var(--dur-2, 200ms) var(--ease), transform var(--dur-2, 200ms) var(--ease);
}
.pic-chat-teaser.is-visible { opacity: 1; transform: none; }
.pic-chat-teaser.is-leaving { transition-duration: var(--dur-1, 120ms); }
/* Small tail pointing at the launcher's centre */
.pic-chat-teaser::after {
  content: ""; position: absolute; right: 22px; bottom: -6px;
  width: 10px; height: 10px;
  background: inherit;
  border-right: 1px solid var(--border); border-bottom: 1px solid var(--border);
  transform: rotate(45deg);
}
.pic-chat-teaser-open {
  flex: 1; min-width: 0;
  margin: 0; padding: 12px 4px 12px 14px;
  border: 0; border-radius: var(--radius); background: transparent; color: inherit;
  font: inherit; font-size: 0.94rem; font-weight: 650; line-height: 1.35; text-align: left;
  cursor: pointer;
}
.pic-chat-teaser-open:hover { color: var(--brand-strong); }
.pic-chat-teaser-open:focus-visible, .pic-chat-teaser-close:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
.pic-chat-teaser-close {
  display: grid; place-items: center; flex: none;
  width: 32px; height: 32px; padding: 9px; margin: 6px 6px 0 0;
  border: 0; border-radius: var(--radius); background: transparent; color: var(--muted); cursor: pointer;
  transition: background-color var(--dur-1, 120ms) var(--ease), color var(--dur-1, 120ms) var(--ease);
}
.pic-chat-teaser-close:hover { background: var(--surface); color: var(--text); }
.pic-chat-is-open .pic-chat-teaser { display: none; }

/* ---------- Messages ---------- */
.pic-chat-log {
  flex: 1; min-height: 0;
  display: flex; flex-direction: column; gap: 10px;
  padding: 14px;
  overflow-y: auto; overscroll-behavior: contain;
  background: var(--bg);
}
.pic-chat-log:focus-visible { outline: 3px solid var(--focus); outline-offset: -3px; }
.pic-chat-msg {
  max-width: 88%;
  padding: 10px 13px;
  border-radius: var(--radius);
  font-size: 0.94rem; line-height: 1.5;
  overflow-wrap: anywhere;
  animation: pic-chat-msg 0.2s var(--ease);
}
@keyframes pic-chat-msg { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }
.pic-chat-msg-bot {
  align-self: flex-start;
  background: var(--sheet, var(--surface)); color: var(--text);
  border-bottom-left-radius: var(--radius-sm);
}
.pic-chat-msg-user {
  align-self: flex-end;
  background: var(--brand); color: var(--on-brand);
  border-bottom-right-radius: var(--radius-sm);
  white-space: pre-wrap;
}
.pic-chat-p { margin: 0; }
.pic-chat-p + .pic-chat-p, .pic-chat-list + .pic-chat-p, .pic-chat-p + .pic-chat-list { margin-top: 6px; }
.pic-chat-list { margin: 0; padding: 0 0 0 1.1em; list-style: disc; }
.pic-chat-list li { margin: 2px 0; }
.pic-chat-list li::marker { color: var(--brand); }
.pic-chat-links { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.pic-chat-link {
  display: inline-flex; align-items: center;
  padding: 6px 11px;
  border-radius: var(--radius);
  background: var(--brand-soft); color: var(--brand-strong);
  font-size: 0.86rem; font-weight: 700; text-decoration: none;
  overflow-wrap: anywhere;
}
.pic-chat-link:hover { color: var(--brand-strong); text-decoration: underline; }

/* Typing indicator */
.pic-chat-typing {
  align-self: flex-start; display: flex; gap: 4px;
  padding: 12px 14px;
  background: var(--sheet, var(--surface));
  border-radius: var(--radius); border-bottom-left-radius: var(--radius-sm);
}
.pic-chat-typing span {
  width: 7px; height: 7px; border-radius: 50%; background: var(--muted);
  animation: pic-chat-dot 1s infinite ease-in-out;
}
.pic-chat-typing span:nth-child(2) { animation-delay: 0.15s; }
.pic-chat-typing span:nth-child(3) { animation-delay: 0.3s; }
@keyframes pic-chat-dot { 0%, 80%, 100% { opacity: 0.3; transform: none; } 40% { opacity: 1; transform: translateY(-3px); } }

/* ---------- Chips ---------- */
.pic-chat-chips {
  display: flex; flex-wrap: wrap; gap: 6px;
  max-height: 132px; overflow-y: auto;
  padding: 10px 14px 4px;
  background: var(--surface);
}
.pic-chat-chip {
  padding: 6px 12px; margin: 0;
  border: 0; border-radius: var(--radius);
  background: var(--bg); color: var(--text);
  font: inherit; font-size: 0.86rem; font-weight: 650; line-height: 1.25;
  cursor: pointer;
  transition: background-color var(--dur-1, 120ms) var(--ease), transform var(--dur-1, 120ms) var(--ease);
}
.pic-chat-chip:active { transform: var(--press, scale(0.97)); }
.pic-chat-chip:hover { background: var(--brand-soft); color: var(--text); }
.pic-chat-chip:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }

/* ---------- Input ---------- */
.pic-chat-form {
  display: flex; gap: 8px; align-items: center;
  margin: 0; padding: 10px 12px 6px 14px;
  background: var(--surface);
}
.pic-chat-chips[hidden] + .pic-chat-form { padding-top: 12px; }
.pic-chat-input {
  flex: 1; min-width: 0;
  height: 42px; padding: 0 14px; margin: 0;
  border: 1.5px solid var(--border); border-radius: var(--radius);
  background: var(--bg); color: var(--text);
  font: inherit; font-size: 16px; /* >= 16px: no iOS zoom */
}
.pic-chat-input::placeholder { color: var(--muted); opacity: 1; }
.pic-chat-input:focus { outline: none; border-color: var(--text); }
.pic-chat-input:focus-visible { outline: 3px solid var(--focus); outline-offset: 1px; }
.pic-chat-send {
  display: grid; place-items: center; flex: none;
  width: 42px; height: 42px; padding: 10px; margin: 0;
  border: 0; border-radius: var(--radius);
  background: var(--brand); color: var(--on-brand); cursor: pointer;
  transition: background-color var(--dur-1, 120ms) var(--ease), transform var(--dur-1, 120ms) var(--ease);
}
.pic-chat-send:hover { background: var(--brand-strong); }
.pic-chat-send:active, .pic-chat-close:active { transform: var(--press, scale(0.97)); }
.pic-chat-send:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
.pic-chat-note {
  margin: 0; padding: 2px 14px 10px;
  background: var(--surface); color: var(--muted);
  font-size: 0.72rem; line-height: 1.35;
}

/* ---------- Small screens: full screen below the header ---------- */
@media (max-width: 559.98px) {
  .pic-chat { bottom: calc(70px + env(safe-area-inset-bottom, 0px)); }
  .pic-chat-panel {
    position: fixed; inset: var(--header-h) 0 0 0;
    width: auto; height: auto;
    border: 0; border-radius: 0;
    /* taste-skill-ignore: panel edge under header */ border-top: 1px solid var(--border);
    padding-bottom: env(safe-area-inset-bottom);
    background: var(--surface);
  }
  .pic-chat-is-open .pic-chat-launcher { display: none; }
  .pic-chat-msg { max-width: 92%; }
}

/* Reduced motion: the panel and icons still fade, nothing travels or scales */
@media (prefers-reduced-motion: reduce) {
  .pic-chat-msg { animation: none; }
  .pic-chat-typing span { animation: none; opacity: 0.6; }
  .pic-chat-panel, .pic-chat .pic-chat-panel[hidden],
  .pic-chat .pic-chat-launcher .pic-chat-ico-open, .pic-chat .pic-chat-launcher .pic-chat-ico-close { transform: none; }
  @starting-style { .pic-chat-panel { transform: none; } }
  .pic-chat-launcher:active, .pic-chat-chip:active, .pic-chat-send:active, .pic-chat-close:active { transform: none; }
  .pic-chat-teaser { transform: none; } /* fade only */
}