/* ============================================================
 * chatbot.css — Widget del chatbot Pipoon
 *
 * Mobile-first. Responsive a escritorio (>= 640px).
 * Sin frameworks. Variables CSS para que sea fácil retocar
 * colores sin tocar JS.
 *
 * Prefijo de clases: .pp-cb__   (Pipoon ChatBot)
 * ============================================================ */

:root {
  --pp-cb-bg:           #ffffff;
  --pp-cb-surface:      #f7f7f9;
  --pp-cb-border:       #e5e7eb;
  --pp-cb-text:         #111827;
  --pp-cb-text-soft:    #6b7280;
  --pp-cb-primary:      #3b82f6;
  --pp-cb-primary-ink:  #ffffff;
  --pp-cb-bubble-bot:   #f1f5f9;
  --pp-cb-bubble-user:  #2563eb;
  --pp-cb-bubble-user-ink: #ffffff;
  --pp-cb-shadow:       0 10px 30px rgba(0,0,0,.12), 0 2px 6px rgba(0,0,0,.06);
  --pp-cb-radius:       14px;
  --pp-cb-radius-sm:    10px;
  --pp-cb-z:            9000;
}

@media (prefers-color-scheme: dark) {
  :root {
    --pp-cb-bg:          #0f172a;
    --pp-cb-surface:     #1e293b;
    --pp-cb-border:      #334155;
    --pp-cb-text:        #e5e7eb;
    --pp-cb-text-soft:   #94a3b8;
    --pp-cb-bubble-bot:  #1e293b;
    --pp-cb-shadow:      0 10px 30px rgba(0,0,0,.6), 0 2px 6px rgba(0,0,0,.4);
  }
}

/* ─── botón flotante ───────────────────────────────────────── */
.pp-cb__fab {
  position: fixed;
  bottom: 16px;
  right: 16px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: none;
  background: var(--pp-cb-primary);
  color: var(--pp-cb-primary-ink);
  font-size: 26px;
  line-height: 1;
  cursor: pointer;
  box-shadow: var(--pp-cb-shadow);
  z-index: var(--pp-cb-z);
  transition: transform .15s ease, box-shadow .15s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}
.pp-cb__fab:hover  { transform: translateY(-2px); }
.pp-cb__fab:active { transform: translateY(0); }
.pp-cb__fab[aria-expanded="true"] { display: none; }

/* ─── panel ────────────────────────────────────────────────── */
.pp-cb__panel {
  position: fixed;
  inset: 0;                           /* móvil: pantalla completa */
  background: var(--pp-cb-bg);
  color: var(--pp-cb-text);
  display: flex;
  flex-direction: column;
  z-index: var(--pp-cb-z);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.45;
}
.pp-cb__panel[hidden] { display: none; }

@media (min-width: 640px) {
  .pp-cb__panel {
    inset: auto;
    bottom: 16px;
    right: 16px;
    width: 380px;
    height: min(640px, calc(100vh - 32px));
    border: 1px solid var(--pp-cb-border);
    border-radius: var(--pp-cb-radius);
    box-shadow: var(--pp-cb-shadow);
    overflow: hidden;
  }
}

/* ─── header ───────────────────────────────────────────────── */
.pp-cb__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--pp-cb-border);
  background: var(--pp-cb-surface);
}
.pp-cb__header-info {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.pp-cb__avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--pp-cb-bubble-bot);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.pp-cb__title {
  display: flex; flex-direction: column;
  min-width: 0;
}
.pp-cb__title-main  { font-weight: 600; font-size: 14px; }
.pp-cb__title-sub   { font-size: 12px; color: var(--pp-cb-text-soft); }
.pp-cb__icon-btn {
  background: transparent;
  border: none;
  color: var(--pp-cb-text-soft);
  padding: 6px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
}
.pp-cb__icon-btn:hover { background: var(--pp-cb-bubble-bot); }

/* ─── selector de personajes ──────────────────────────────── */
.pp-cb__personas {
  padding: 18px 14px;
  overflow-y: auto;
}
.pp-cb__personas-h {
  font-size: 16px; font-weight: 600; margin: 0 0 4px;
}
.pp-cb__personas-sub {
  font-size: 13px; color: var(--pp-cb-text-soft); margin: 0 0 14px;
}
.pp-cb__personas-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}
.pp-cb__persona {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  border: 1px solid var(--pp-cb-border);
  border-radius: var(--pp-cb-radius-sm);
  background: var(--pp-cb-bg);
  cursor: pointer;
  text-align: left;
  color: inherit;
  font: inherit;
  transition: border-color .12s ease, transform .12s ease;
}
.pp-cb__persona:hover { border-color: var(--pp-cb-primary); }
.pp-cb__persona:active { transform: scale(.98); }
.pp-cb__persona-emoji {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: var(--pp-cb-bubble-bot);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}
.pp-cb__persona-text { display: flex; flex-direction: column; min-width: 0; }
.pp-cb__persona-name { font-weight: 600; font-size: 14px; }
.pp-cb__persona-desc { font-size: 12px; color: var(--pp-cb-text-soft); }

/* ─── área de mensajes ────────────────────────────────────── */
.pp-cb__body {
  flex: 1 1 auto;
  overflow-y: auto;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  scroll-behavior: smooth;
}
.pp-cb__msg {
  display: flex;
  max-width: 92%;
}
.pp-cb__msg--user { align-self: flex-end; }
.pp-cb__msg--bot  { align-self: flex-start; }
.pp-cb__bubble {
  padding: 10px 12px;
  border-radius: 14px;
  word-wrap: break-word;
  white-space: pre-wrap;
}
.pp-cb__msg--user .pp-cb__bubble {
  background: var(--pp-cb-bubble-user);
  color: var(--pp-cb-bubble-user-ink);
  border-bottom-right-radius: 4px;
}
.pp-cb__msg--bot .pp-cb__bubble {
  background: var(--pp-cb-bubble-bot);
  color: var(--pp-cb-text);
  border-bottom-left-radius: 4px;
}
.pp-cb__tool-pill {
  align-self: flex-start;
  font-size: 12px;
  color: var(--pp-cb-text-soft);
  background: transparent;
  border: 1px dashed var(--pp-cb-border);
  border-radius: 12px;
  padding: 4px 10px;
  margin-top: 2px;
}

/* ─── cards de productos ──────────────────────────────────── */
.pp-cb__products {
  align-self: flex-start;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 4px;
  max-width: 100%;
}
.pp-cb__product {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px;
  border: 1px solid var(--pp-cb-border);
  border-radius: var(--pp-cb-radius-sm);
  background: var(--pp-cb-bg);
  text-decoration: none;
  color: inherit;
  transition: border-color .12s ease, transform .12s ease;
}
.pp-cb__product:hover { border-color: var(--pp-cb-primary); }
.pp-cb__product:active { transform: scale(.99); }
.pp-cb__product-img {
  width: 56px; height: 56px;
  border-radius: 8px;
  background: var(--pp-cb-bubble-bot);
  object-fit: contain;
  flex-shrink: 0;
}
.pp-cb__product-info { display: flex; flex-direction: column; min-width: 0; }
.pp-cb__product-name {
  font-size: 13px; font-weight: 600;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  max-width: 220px;
}
.pp-cb__product-meta { font-size: 12px; color: var(--pp-cb-text-soft); }
.pp-cb__product-price {
  font-weight: 700; font-size: 14px;
  color: var(--pp-cb-text);
}
.pp-cb__product-oldprice {
  font-size: 12px;
  color: var(--pp-cb-text-soft);
  text-decoration: line-through;
  margin-right: 6px;
}

/* ─── footer / input ──────────────────────────────────────── */
.pp-cb__footer {
  border-top: 1px solid var(--pp-cb-border);
  padding: 8px 10px 10px;
  background: var(--pp-cb-bg);
  /* respetar safe area en iOS */
  padding-bottom: calc(10px + env(safe-area-inset-bottom, 0));
}
.pp-cb__form {
  display: flex;
  gap: 8px;
  align-items: flex-end;
}
.pp-cb__textarea {
  flex: 1;
  resize: none;
  border: 1px solid var(--pp-cb-border);
  border-radius: var(--pp-cb-radius-sm);
  padding: 9px 11px;
  font: inherit;
  font-size: 15px;
  background: var(--pp-cb-bg);
  color: var(--pp-cb-text);
  max-height: 120px;
  outline: none;
}
.pp-cb__textarea:focus { border-color: var(--pp-cb-primary); }
.pp-cb__send {
  border: none;
  background: var(--pp-cb-primary);
  color: var(--pp-cb-primary-ink);
  border-radius: var(--pp-cb-radius-sm);
  padding: 9px 14px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  font-size: 14px;
}
.pp-cb__send:disabled {
  opacity: .55;
  cursor: not-allowed;
}

.pp-cb__typing {
  align-self: flex-start;
  font-size: 13px;
  color: var(--pp-cb-text-soft);
  padding: 6px 10px;
}
.pp-cb__typing::after {
  content: "";
  display: inline-block;
  width: 6px; height: 6px;
  margin-left: 4px;
  border-radius: 50%;
  background: var(--pp-cb-text-soft);
  animation: pp-cb-blink 1s infinite ease-in-out;
}
@keyframes pp-cb-blink {
  0%, 100% { opacity: .3; }
  50%      { opacity: 1;  }
}

.pp-cb__error {
  align-self: stretch;
  background: #fee2e2;
  color: #7f1d1d;
  border: 1px solid #fecaca;
  padding: 8px 10px;
  border-radius: var(--pp-cb-radius-sm);
  font-size: 13px;
}
@media (prefers-color-scheme: dark) {
  .pp-cb__error {
    background: #3a1212;
    color: #fecaca;
    border-color: #7f1d1d;
  }
}

/* Aviso IA fijo */
.pp-cb__ai-notice {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: #f0f4ff;
  border-bottom: 1px solid #d0d8f0;
  font-size: 11px;
  color: #444;
  line-height: 1.4;
}
.pp-cb__ai-notice-icon { font-size: 14px; flex-shrink: 0; }
.pp-cb__ai-notice-text { flex: 1; }
@media (prefers-color-scheme: dark) {
  .pp-cb__ai-notice { background: #1e2340; border-color: #2d3560; color: #aab; }
}