/* ============================================================
 * theme.css — TEMA "La célula" (capa LIBRE).
 * Prefijo: la-- (todos los selectores propios empiezan con .la-)
 *
 * 12 vars --guia-* del contrato: accent, accent-bg, accent-text,
 * navy, navy-bg, navy-text, ok, ok-bg, miss, miss-bg, surface,
 * border, text, text-muted.
 *
 * Paleta: verde célula (clorofila) como acento; navy para ejercicios.
 * NO hardcodeamos hex de marca (usamos var(--guia-*)).
 * Los colores internos del tema (vegetal, animal, procariota) sí son
 * constantes locales: no son colores de marca de aprueba.net.
 *
 * Pisos de letra:
 *   - Lectura visible: mínimo 17px.
 *   - Texto de apoyo: mínimo 15px.
 *   - Etiquetas MAYÚSCULAS: mínimo 13px.
 * ============================================================ */

:root {
  /* Acento principal: verde biología (clorofila) */
  --guia-accent:       #1C7A3A;
  --guia-accent-bg:    #E6F4EA;
  --guia-accent-text:  #145729;

  /* Navy para modo ejercicio */
  --guia-navy:         #1B2A4A;
  --guia-navy-bg:      #EEF1F7;
  --guia-navy-text:    #0F1B32;

  /* Feedback */
  --guia-ok:           #1C7A3A;
  --guia-ok-bg:        #E6F4EA;
  --guia-miss:         #B91C1C;
  --guia-miss-bg:      #FEE2E2;

  /* Superficie y texto base */
  --guia-surface:      #FFFFFF;
  --guia-border:       #D1D5DB;
  --guia-text:         #111827;
  --guia-text-muted:   #4B5563;

  /* Colores semánticos internos del tema (no son variables de marca) */
  --la-animal:   #C75D08;   /* naranja cálido para célula animal */
  --la-vegetal:  #1C7A3A;   /* verde para célula vegetal */
  --la-prokary:  #6B21A8;   /* púrpura para procariota */
  --la-both:     #374151;   /* gris neutro para rasgos compartidos */
}

/* ================================================================
 * Widget: escala de tamaños (M1 — D2)
 * ================================================================ */
.la-escala { margin: 6px 0 4px; }

.la-escala-inst {
  font-size: 16px;
  color: var(--guia-text-muted);
  margin: 0 0 12px;
}

.la-escala-chips {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.la-escala-chip {
  appearance: none;
  border: 2px solid var(--guia-border);
  background: var(--guia-surface);
  color: var(--guia-text);
  font-weight: 700;
  font-size: 15px;
  border-radius: 999px;
  padding: 8px 14px;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  min-height: 44px;
}

.la-escala-chip.sel {
  border-color: var(--guia-accent);
  background: var(--guia-accent-bg);
  color: var(--guia-accent-text);
}

.la-escala-barra-wrap {
  background: var(--guia-navy-bg);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 10px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.la-escala-barra-titulo {
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--guia-text-muted);
  margin: 0 0 8px;
}

.la-escala-barra-track {
  position: relative;
  height: 36px;
  background: var(--guia-border);
  border-radius: 6px;
  min-width: 260px;
}

.la-escala-barra-fill {
  height: 100%;
  border-radius: 6px;
  transition: width 0.4s ease, background 0.3s;
  display: flex;
  align-items: center;
  padding-left: 8px;
  font-size: 13px;
  font-weight: 800;
  color: #fff;
  white-space: nowrap;
  overflow: hidden;
}

.la-escala-desc {
  margin-top: 10px;
  font-size: 17px;
  color: var(--guia-text);
  background: var(--guia-accent-bg);
  border: 1.5px solid var(--guia-accent);
  border-radius: 10px;
  padding: 11px 14px;
  line-height: 1.4;
  min-height: 44px;
}

.la-escala-desc strong { color: var(--guia-accent-text); }

/* ================================================================
 * Visuals estáticos del tema (renderVisual en theme.js)
 * ================================================================ */

/* Contenedor genérico de visual SVG */
.la-visual-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--guia-border);
  border-radius: 14px;
  background: var(--guia-surface);
  padding: 10px;
  margin: 6px 0 4px;
}

.la-visual-wrap svg {
  width: 100%;
  height: auto;
  display: block;
}

/* ================================================================
 * Widget: diagrama bicéfalo interactivo (M4 — D1)
 * El SVG se inyecta por el orquestador. El tema maneja el panel.
 * ================================================================ */
.la-bicel-wrap {
  margin: 6px 0 4px;
}

.la-bicel-inst {
  font-size: 16px;
  color: var(--guia-text-muted);
  margin: 0 0 10px;
}

.la-bicel-svg-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--guia-border);
  border-radius: 14px;
  background: #fff;
  padding: 8px;
}

.la-bicel-svg-scroll svg {
  width: 100%;
  height: auto;
  display: block;
  min-width: 360px;
}

/* Estado de espera mientras el SVG no está sourced */
.la-bicel-placeholder {
  min-height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px dashed var(--guia-border);
  border-radius: 14px;
  color: var(--guia-text-muted);
  font-size: 15px;
  text-align: center;
  padding: 20px;
}

.la-bicel-panel {
  margin-top: 12px;
  min-height: 60px;
  border-radius: 12px;
  padding: 12px 14px;
  font-size: 17px;
  line-height: 1.4;
  background: var(--guia-navy-bg);
  color: var(--guia-text-muted);
  transition: background 0.2s, color 0.2s;
}

.la-bicel-panel.activo { background: var(--guia-accent-bg); color: var(--guia-text); }
.la-bicel-panel .la-bicel-nombre { font-weight: 800; font-size: 18px; color: var(--guia-accent-text); }
.la-bicel-panel .la-bicel-funcion { margin: 4px 0; }
.la-bicel-panel .la-bicel-badge {
  display: inline-block;
  margin-top: 6px;
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .04em;
  border-radius: 999px;
  padding: 3px 10px;
}

.la-bicel-badge.ambas    { background: #E5E7EB; color: var(--la-both); }
.la-bicel-badge.animal   { background: #FEF3C7; color: var(--la-animal); }
.la-bicel-badge.vegetal  { background: var(--guia-accent-bg); color: var(--la-vegetal); }

/* Organelos tocables en el SVG */
.la-bicel-svg-scroll svg [data-k] {
  cursor: pointer;
  transition: opacity 0.15s;
}
.la-bicel-svg-scroll svg [data-k]:hover { opacity: 0.75; }
.la-bicel-svg-scroll svg [data-k].sel   { outline: 2px solid var(--guia-accent); }

/* ================================================================
 * Widget: función → nombre (M4 — D3)
 * ================================================================ */
.la-fn-wrap { margin: 6px 0 4px; }

.la-fn-inst {
  font-size: 16px;
  color: var(--guia-text-muted);
  margin: 0 0 10px;
}

.la-fn-q {
  background: var(--guia-navy-bg);
  border: 2px solid var(--guia-navy);
  border-radius: 12px;
  padding: 12px 14px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 12px;
  color: var(--guia-navy-text);
}

.la-fn-q .la-fn-n {
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--guia-text-muted);
  display: block;
  margin-bottom: 4px;
}

.la-fn-opts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.la-fn-opt {
  appearance: none;
  border: 2px solid var(--guia-border);
  background: var(--guia-surface);
  color: var(--guia-text);
  font-weight: 700;
  font-size: 15px;
  border-radius: 10px;
  padding: 10px 12px;
  cursor: pointer;
  text-align: left;
  min-height: 44px;
  transition: border-color 0.15s, background 0.15s;
}

.la-fn-opt:hover { border-color: var(--guia-accent); background: var(--guia-accent-bg); }
.la-fn-opt.ok    { border-color: var(--guia-ok); background: var(--guia-ok-bg); color: var(--guia-ok); }
.la-fn-opt.miss  { border-color: var(--guia-miss); background: var(--guia-miss-bg); color: var(--guia-miss); }
.la-fn-opt[disabled] { opacity: .5; cursor: default; }

.la-fn-fb {
  margin-top: 10px;
  font-size: 16px;
  font-weight: 700;
  min-height: 44px;
  border-radius: 10px;
  padding: 10px 12px;
  line-height: 1.35;
}
.la-fn-fb.idle { color: var(--guia-text-muted); font-weight: 400; background: #f6f7f9; }
.la-fn-fb.ok   { background: var(--guia-ok-bg); color: var(--guia-ok); }
.la-fn-fb.bad  { background: var(--guia-miss-bg); color: var(--guia-miss); }

.la-fn-bar {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-top: 12px;
  flex-wrap: wrap;
}

.la-fn-score {
  font-size: 14px;
  font-weight: 800;
  color: var(--guia-text-muted);
}

.la-fn-btn {
  appearance: none;
  border: 2px solid var(--guia-accent);
  background: var(--guia-accent);
  color: #fff;
  font-weight: 800;
  font-size: 15px;
  border-radius: 10px;
  padding: 9px 16px;
  cursor: pointer;
  min-height: 44px;
}

.la-fn-btn[disabled] { opacity: .4; cursor: default; }
.la-fn-btn.next { margin-left: auto; }

/* ================================================================
 * Widget: clasificar nutrición (M5 — autótrofa / heterótrofa)
 * ================================================================ */
.la-nut-wrap { margin: 6px 0 4px; }

.la-nut-inst {
  font-size: 16px;
  color: var(--guia-text-muted);
  margin: 0 0 12px;
}

.la-nut-caso {
  background: var(--guia-navy-bg);
  border: 2px solid var(--guia-border);
  border-radius: 12px;
  padding: 12px 14px;
  margin-bottom: 12px;
}

.la-nut-caso-lbl {
  font-size: 17px;
  font-weight: 700;
  color: var(--guia-text);
  margin: 0 0 4px;
}

.la-nut-caso-desc {
  font-size: 15px;
  color: var(--guia-text-muted);
  margin: 0 0 10px;
}

.la-nut-opts {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.la-nut-opt {
  appearance: none;
  border: 2px solid var(--guia-border);
  background: var(--guia-surface);
  color: var(--guia-text);
  font-weight: 700;
  font-size: 15px;
  border-radius: 999px;
  padding: 8px 16px;
  cursor: pointer;
  min-height: 44px;
}

.la-nut-opt:hover { border-color: var(--guia-accent); background: var(--guia-accent-bg); }
.la-nut-opt.ok    { border-color: var(--guia-ok); background: var(--guia-ok-bg); color: var(--guia-ok); }
.la-nut-opt.miss  { border-color: var(--guia-miss); background: var(--guia-miss-bg); color: var(--guia-miss); }
.la-nut-opt[disabled] { cursor: default; opacity: .6; }

/* ================================================================
 * Widget: tabla de rasgos interactiva (M6 — D4)
 * ================================================================ */
.la-tabla-wrap { margin: 6px 0 4px; overflow-x: auto; -webkit-overflow-scrolling: touch; }

.la-tabla-inst {
  font-size: 16px;
  color: var(--guia-text-muted);
  margin: 0 0 12px;
}

.la-tabla {
  width: 100%;
  min-width: 360px;
  border-collapse: collapse;
  font-size: 15px;
}

.la-tabla th {
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--guia-text-muted);
  background: var(--guia-navy-bg);
  border: 1px solid var(--guia-border);
  padding: 10px 12px;
  text-align: center;
}

.la-tabla th.col-animal   { color: var(--la-animal); }
.la-tabla th.col-vegetal  { color: var(--la-vegetal); }
.la-tabla th.col-prokary  { color: var(--la-prokary); }

.la-tabla td {
  border: 1px solid var(--guia-border);
  padding: 10px 12px;
  vertical-align: middle;
}

.la-tabla td.la-rasgo-lbl {
  font-size: 15px;
  font-weight: 600;
  color: var(--guia-text);
  background: var(--guia-surface);
  min-width: 140px;
}

.la-tabla td.la-celda {
  text-align: center;
  cursor: pointer;
  font-size: 20px;
  user-select: none;
  min-width: 60px;
  transition: background 0.15s;
}

.la-tabla td.la-celda:hover { background: var(--guia-accent-bg); }
.la-tabla td.la-celda.idle  { color: var(--guia-border); }
.la-tabla td.la-celda.ok    { background: var(--guia-ok-bg); color: var(--guia-ok); }
.la-tabla td.la-celda.miss  { background: var(--guia-miss-bg); color: var(--guia-miss); }

.la-tabla-score {
  margin-top: 10px;
  font-size: 15px;
  font-weight: 700;
  color: var(--guia-text-muted);
  text-align: right;
}

/* ================================================================
 * Visual estático: tarjetas de la teoría celular (M2)
 * ================================================================ */
.la-tarjetas {
  display: grid;
  gap: 10px;
  margin: 10px 0 4px;
}

.la-tarjeta {
  border: 2px solid var(--guia-border);
  border-radius: 14px;
  padding: 14px 16px;
  background: var(--guia-surface);
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.la-tarjeta-n {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--guia-accent);
  color: #fff;
  font-weight: 800;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.la-tarjeta-body { flex: 1; }

.la-tarjeta-titulo {
  font-size: 17px;
  font-weight: 800;
  color: var(--guia-accent-text);
  margin: 0 0 4px;
}

.la-tarjeta-texto {
  font-size: 15px;
  color: var(--guia-text);
  margin: 0;
  line-height: 1.45;
}

.la-tarjeta-autor {
  font-size: 13px;
  color: var(--guia-text-muted);
  margin: 6px 0 0;
}

/* ================================================================
 * Visual estático: procariota vs eucariota (dos columnas, M3)
 * ================================================================ */
.la-pro-euca {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 10px 0 4px;
}

@media (max-width: 480px) {
  .la-pro-euca { grid-template-columns: 1fr; }
}

.la-pro-col {
  border-radius: 14px;
  padding: 14px;
  font-size: 15px;
  line-height: 1.5;
}

.la-pro-col.procariota {
  background: #F5F0FF;
  border: 2px solid var(--la-prokary);
}

.la-pro-col.eucariota {
  background: var(--guia-accent-bg);
  border: 2px solid var(--guia-accent);
}

.la-pro-col-titulo {
  font-size: 17px;
  font-weight: 800;
  margin: 0 0 8px;
}

.la-pro-col.procariota .la-pro-col-titulo { color: var(--la-prokary); }
.la-pro-col.eucariota  .la-pro-col-titulo { color: var(--la-vegetal); }

.la-pro-col ul {
  margin: 0;
  padding-left: 18px;
  color: var(--guia-text);
}

.la-pro-col li { margin-bottom: 4px; }

/* ================================================================
 * Visual estático: mitosis vs meiosis (M5)
 * ================================================================ */
.la-mit-tabla {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
  margin: 10px 0 4px;
}

.la-mit-tabla th {
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .04em;
  padding: 10px 12px;
  border: 1px solid var(--guia-border);
  text-align: left;
}

.la-mit-tabla th.mit   { background: #FFF3E0; color: #B45309; }
.la-mit-tabla th.mei   { background: var(--guia-accent-bg); color: var(--guia-accent-text); }
.la-mit-tabla th.aspecto { background: var(--guia-navy-bg); color: var(--guia-text-muted); }

.la-mit-tabla td {
  padding: 10px 12px;
  border: 1px solid var(--guia-border);
  vertical-align: top;
  font-size: 15px;
  color: var(--guia-text);
}

.la-mit-tabla tr:nth-child(even) td { background: #f9fafb; }

@media print {
  .la-bicel-placeholder,
  .la-fn-wrap,
  .la-nut-wrap,
  .la-tabla-wrap,
  .la-escala-barra-wrap { display: none !important; }
}