/* ============================================================
   Tutor IA Socrático — botón por pregunta + panel de chat.
   Tema claro de Escala (primary #007BFF, Poppins/Montserrat).
   Panel lateral en PC / hoja inferior en móvil.
   NO se minifica. Al editar: bump CACHE_VERSION.
   ============================================================ */

/* ---- Botón junto a la pregunta ---- */
.question-actions {
  display: flex;
  align-items: center;
  gap: 2px;
}

.ai-tutor-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(0, 123, 255, 0.10);
  color: #0056b3;
  border: 1px solid rgba(0, 123, 255, 0.25);
  font-size: 13px;
  font-weight: 600;
  font-family: inherit;
  line-height: 1;
  cursor: pointer;
  padding: 6px 11px;
  border-radius: 999px;
  white-space: nowrap;
  transition: transform 0.15s ease, background-color 0.2s ease, box-shadow 0.2s ease;
}
.ai-tutor-btn:hover {
  background: rgba(0, 123, 255, 0.18);
  box-shadow: 0 2px 8px rgba(0, 123, 255, 0.22);
  transform: translateY(-1px);
}
.ai-tutor-btn:focus-visible {
  outline: 2px solid #007BFF;
  outline-offset: 2px;
}
/* Etiqueta: "Aprende con IA" en pantallas normales, "IA" en móvil angosto. */
.ai-tutor-lbl-short { display: none; }
@media (max-width: 480px) {
  .ai-tutor-lbl-full { display: none; }
  .ai-tutor-lbl-short { display: inline; }
  .ai-tutor-btn { padding: 6px 9px; }
}
/* Variante en práctica (una sola pregunta): a la derecha del título */
.ai-tutor-btn--practica {
  float: right;
  margin: -4px 0 0 8px;
}

/* ---- Overlay + panel ---- */
.tutor-ia-overlay {
  position: fixed;
  inset: 0;
  z-index: 99999;
  display: flex;
  justify-content: flex-end;          /* PC: panel a la derecha */
  background: rgba(15, 23, 42, 0.38);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.22s ease, visibility 0.22s ease;
}
.tutor-ia-overlay.abierto {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.tutor-ia-panel {
  display: flex;
  flex-direction: column;
  width: min(420px, 100%);
  height: 100%;
  background: #ffffff;
  box-shadow: -8px 0 40px rgba(0, 0, 0, 0.25);
  font-family: 'Montserrat', 'Poppins', sans-serif;
  transform: translateX(100%);
  transition: transform 0.28s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: transform;
}
.tutor-ia-overlay.abierto .tutor-ia-panel {
  transform: translateX(0);
}

/* ---- Header ---- */
.tutor-ia-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 14px 16px;
  background: linear-gradient(90deg, #007BFF, #00A9FF);
  color: #fff;
  flex-shrink: 0;
}
.tutor-ia-title {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.tutor-ia-title strong { font-size: 16px; display: block; }
.tutor-ia-avatar { font-size: 26px; line-height: 1; }
.tutor-ia-sub {
  display: block;
  font-size: 12px;
  opacity: 0.9;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.tutor-ia-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}
.tutor-ia-export {
  background: linear-gradient(135deg, #FFC107, #FFB300);
  border: none;
  color: #3a2e00;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  white-space: nowrap;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.20);
  transition: transform 0.15s ease, box-shadow 0.2s ease, filter 0.2s ease;
}
.tutor-ia-export:hover {
  transform: translateY(-1px);
  box-shadow: 0 5px 14px rgba(0, 0, 0, 0.28);
  filter: brightness(1.06);
}
.tutor-ia-close {
  background: rgba(255, 255, 255, 0.18);
  border: none;
  color: #fff;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  flex-shrink: 0;
  transition: background-color 0.2s ease;
}
.tutor-ia-close:hover { background: rgba(255, 255, 255, 0.32); }

/* ---- Mensajes (única zona que scrollea) ---- */
.tutor-ia-mensajes {
  flex: 1 1 auto;
  overflow-y: auto;
  overscroll-behavior: contain; /* el scroll de la conversación NO mueve el fondo */
  -webkit-overflow-scrolling: touch;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: #f6f8fb;
}
.tutor-ia-msg { display: flex; }
.tutor-ia-msg.is-user { justify-content: flex-end; }
.tutor-ia-msg.is-tutor { justify-content: flex-start; }

.tutor-ia-burbuja {
  max-width: 84%;
  padding: 10px 14px;
  border-radius: 16px;
  font-size: 14.5px;
  line-height: 1.5;
  word-wrap: break-word;
  overflow-wrap: anywhere;
}
.is-tutor .tutor-ia-burbuja {
  background: #fff;
  color: #1f2937;
  border: 1px solid #e5e9f0;
  border-bottom-left-radius: 5px;
}
.is-user .tutor-ia-burbuja {
  background: linear-gradient(135deg, #007BFF, #0056b3);
  color: #fff;
  border-bottom-right-radius: 5px;
}
.is-error .tutor-ia-burbuja {
  background: #fff5f5;
  color: #b42318;
  border: 1px solid #fdd;
}

/* ---- Indicador "escribiendo…" ---- */
.tutor-ia-typing .tutor-ia-burbuja {
  display: inline-flex;
  gap: 4px;
  align-items: center;
}
.tutor-ia-typing .tutor-ia-burbuja span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #9aa4b2;
  animation: tutorIaBlink 1.2s infinite ease-in-out both;
}
.tutor-ia-typing .tutor-ia-burbuja span:nth-child(2) { animation-delay: 0.2s; }
.tutor-ia-typing .tutor-ia-burbuja span:nth-child(3) { animation-delay: 0.4s; }
@keyframes tutorIaBlink {
  0%, 80%, 100% { opacity: 0.3; transform: translateY(0); }
  40% { opacity: 1; transform: translateY(-3px); }
}

/* ---- Nota + formulario ---- */
.tutor-ia-nota {
  padding: 8px 16px;
  font-size: 11.5px;
  color: #64748b;
  background: #eef4ff;
  border-top: 1px solid #e5e9f0;
  text-align: center;
  flex-shrink: 0;
}
.tutor-ia-form {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom, 0px));
  background: #fff;
  border-top: 1px solid #e5e9f0;
  flex-shrink: 0;
}
.tutor-ia-input {
  flex: 1 1 auto;
  resize: none;
  border: 1px solid #cbd5e1;
  border-radius: 20px;
  padding: 10px 14px;
  font-size: 16px;               /* 16px = evita el zoom automático en iOS */
  font-family: inherit;
  line-height: 1.4;
  max-height: 120px;
  outline: none;
  transition: border-color 0.2s ease;
}
.tutor-ia-input:focus { border-color: #007BFF; }
.tutor-ia-input:disabled { background: #f1f5f9; }
.tutor-ia-send {
  flex-shrink: 0;
  width: 42px;
  height: 42px;
  border: none;
  border-radius: 50%;
  background: linear-gradient(135deg, #007BFF, #0056b3);
  color: #fff;
  font-size: 18px;
  cursor: pointer;
  transition: transform 0.15s ease, opacity 0.2s ease;
}
.tutor-ia-send:hover:not(:disabled) { transform: scale(1.08); }
.tutor-ia-send:disabled { opacity: 0.5; cursor: default; }

/* ---- Móvil: hoja inferior ---- */
@media (max-width: 640px) {
  .tutor-ia-overlay { align-items: flex-end; justify-content: center; }
  .tutor-ia-panel {
    width: 100%;
    height: auto;
    max-height: 88vh;
    border-radius: 18px 18px 0 0;
    box-shadow: 0 -8px 40px rgba(0, 0, 0, 0.28);
    transform: translateY(100%);
  }
  .tutor-ia-overlay.abierto .tutor-ia-panel { transform: translateY(0); }
  .tutor-ia-burbuja { max-width: 90%; }
  .tutor-ia-export-lbl { display: none; } /* en móvil solo el ícono ⬇ para no saturar el header */
}

/* Reduce-motion: sin deslizamiento */
@media (prefers-reduced-motion: reduce) {
  .tutor-ia-panel { transition: none; }
}

/* ============================================================
   Mis Aprendizajes con IA — visor de historial (modal centrado)
   ============================================================ */
.tutor-ia-aprend-overlay {
  position: fixed;
  inset: 0;
  z-index: 100000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  background: rgba(15, 23, 42, 0.5);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}
.tutor-ia-aprend-overlay.abierto {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}
.tutor-ia-aprend-panel {
  display: flex;
  flex-direction: column;
  width: min(760px, 100%);
  max-height: 88vh;
  background: #fff;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
  font-family: 'Montserrat', 'Poppins', sans-serif;
}
.tutor-ia-aprend-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: linear-gradient(90deg, #007BFF, #00A9FF);
  color: #fff;
  font-size: 17px;
  flex-shrink: 0;
}
.tutor-ia-aprend-close {
  background: rgba(255, 255, 255, 0.18);
  border: none;
  color: #fff;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
}
.tutor-ia-aprend-close:hover { background: rgba(255, 255, 255, 0.32); }
.tutor-ia-aprend-body {
  overflow-y: auto;
  overscroll-behavior: contain; /* el scroll del visor NO mueve el fondo */
  -webkit-overflow-scrolling: touch;
  padding: 16px 20px 20px;
  background: #f6f8fb;
}
.tutor-ia-aprend-vacio {
  text-align: center;
  color: #64748b;
  padding: 40px 16px;
  line-height: 1.6;
}
/* Presentación (cuando aún no hay conversaciones) */
.tutor-ia-aprend-intro {
  text-align: center;
  padding: 20px 8px 12px;
  color: #334155;
}
.tutor-ia-aprend-intro-icon { font-size: 44px; margin-bottom: 6px; }
.tutor-ia-aprend-intro h3 { color: #0f2a4a; font-size: 20px; margin: 0 0 8px; }
.tutor-ia-aprend-intro p {
  color: #475569;
  line-height: 1.6;
  max-width: 520px;
  margin: 0 auto 18px;
}
.tutor-ia-aprend-pasos {
  list-style: none;
  margin: 0 auto 22px;
  padding: 0;
  max-width: 520px;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.tutor-ia-aprend-pasos li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: #fff;
  border: 1px solid #e5e9f0;
  border-radius: 12px;
  padding: 12px 14px;
  line-height: 1.5;
  font-size: 14px;
}
.tutor-ia-aprend-pasos li span {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: linear-gradient(135deg, #007BFF, #00A9FF);
  color: #fff;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}
.tutor-ia-aprend-intro-btn {
  background: linear-gradient(135deg, #007BFF, #0056b3);
  color: #fff;
  border: none;
  padding: 11px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 14px;
  font-family: inherit;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(0, 123, 255, 0.3);
  transition: transform 0.15s ease;
}
.tutor-ia-aprend-intro-btn:hover { transform: translateY(-1px); }
.tutor-ia-aprend-examen { margin-bottom: 12px; }
.tutor-ia-aprend-examen-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 4px 12px 4px 4px;
  background: #fff;
  border: 1px solid #e5e9f0;
  border-radius: 10px;
}
.tutor-ia-aprend-examen-toggle {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 8px;
  text-align: left;
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  padding: 10px 8px 10px 10px;
  border-radius: 8px;
  transition: background-color 0.2s ease;
}
.tutor-ia-aprend-examen-toggle:hover { background: #f0f6ff; }
.tutor-ia-aprend-examen-toggle::before {
  content: '▸';
  color: #007BFF;
  font-size: 13px;
  flex-shrink: 0;
  transition: transform 0.2s ease;
}
.tutor-ia-aprend-examen-toggle.abierto::before { transform: rotate(90deg); }
.tutor-ia-aprend-examen-tit {
  font-weight: 700;
  color: #0f2a4a;
  font-size: 14.5px;
  overflow: hidden;
  text-overflow: ellipsis;
}
.tutor-ia-aprend-examen-tit small { color: #64748b; font-weight: 500; }
.tutor-ia-aprend-preguntas {
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  transition: grid-template-rows 0.3s ease, opacity 0.25s ease;
}
.tutor-ia-aprend-preguntas.abierta { grid-template-rows: 1fr; opacity: 1; }
.tutor-ia-aprend-preguntas-inner { overflow: hidden; min-height: 0; padding: 6px 0 2px 10px; }
.tutor-ia-aprend-dl {
  flex-shrink: 0;
  background: linear-gradient(135deg, #007BFF, #0056b3);
  color: #fff;
  border: none;
  padding: 7px 12px;
  border-radius: 14px;
  font-size: 12.5px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  white-space: nowrap;
  transition: transform 0.15s ease;
}
.tutor-ia-aprend-dl:hover { transform: translateY(-1px); }
.tutor-ia-aprend-item {
  background: #fff;
  border: 1px solid #e5e9f0;
  border-radius: 10px;
  margin-bottom: 8px;
  overflow: hidden;
}
.tutor-ia-aprend-preg {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 12px 40px 12px 14px;
  cursor: pointer;
  position: relative;
  font-family: inherit;
  display: block;
}
.tutor-ia-aprend-preg:hover { background: #f0f6ff; }
.tutor-ia-aprend-preg::after {
  content: '▾';
  position: absolute;
  right: 14px;
  top: 12px;
  color: #007BFF;
  transition: transform 0.2s ease;
}
.tutor-ia-aprend-preg.abierto::after { transform: rotate(180deg); }
.tutor-ia-aprend-preg-et {
  display: block;
  font-weight: 700;
  color: #007BFF;
  font-size: 13px;
}
.tutor-ia-aprend-preg-tx {
  display: block;
  color: #475569;
  font-size: 13px;
  margin-top: 2px;
}
.tutor-ia-aprend-conv {
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  transition: grid-template-rows 0.28s ease, opacity 0.22s ease;
}
.tutor-ia-aprend-conv.abierta { grid-template-rows: 1fr; opacity: 1; }
.tutor-ia-aprend-conv-inner {
  overflow: hidden;
  min-height: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 12px 14px;
  border-top: 1px solid #eef2f7;
  background: #f9fbfe;
}

@media (max-width: 640px) {
  .tutor-ia-aprend-panel { max-height: 92vh; }
  .tutor-ia-aprend-body { padding: 12px 14px 16px; }
}

/* CTA de matrícula por WhatsApp (aparece en la burbuja cuando se agota la prueba gratis) */
.tutor-ia-cta-wsp {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 10px;
  padding: 10px 16px;
  background: #25d366;
  color: #fff !important;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.92rem;
  text-decoration: none;
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.35);
  transition: transform 0.15s ease, background 0.15s ease;
}
.tutor-ia-cta-wsp:hover { background: #1fb958; transform: translateY(-1px); }