/* ============================================================
   Tarjetas Didácticas — styles.css (v1, monomodo tarjetas)
   Panel a la izquierda, hojas de tarjetas vivas a la derecha.
   La tabla/glosario vive en su hermana generador-vocabulario.
   ============================================================ */

.cali-stage {
  display: grid;
  grid-template-columns: minmax(320px, 420px) 1.35fr;
  gap: var(--space-5);
  align-items: start;
}
.tool-stage.cali-stage { overflow: visible; }

.cali-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-lg, 16px);
  box-shadow: var(--shadow-sm, 0 6px 18px rgba(21, 24, 35, 0.06));
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}
.cali-bloque { border: 0; margin: 0; padding: 0; min-width: 0; }
.cali-bloque > legend {
  padding: 0;
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-primary-dark);
  margin-bottom: var(--space-2);
}
.cali-pista { margin: 4px 0 0; color: var(--color-muted); font-size: var(--text-xs); }
.cali-pista code { background: var(--color-surface-2); border-radius: 4px; padding: 1px 5px; }

.cali-campo { display: flex; flex-direction: column; gap: 4px; font-size: var(--text-xs); font-weight: 700; color: var(--color-muted); margin-top: var(--space-3); }
.cali-campo:first-of-type { margin-top: 0; }
.input-texto, .input-select {
  width: 100%;
  padding: 8px 10px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm, 8px);
  font-size: var(--text-sm);
  background: var(--color-surface);
  color: var(--color-text);
}
.texto-input {
  width: 100%;
  min-height: 170px;
  resize: vertical;
  padding: 10px 12px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm, 8px);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-text);
}
.texto-input:focus-visible, .input-texto:focus-visible, .input-select:focus-visible {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-soft);
}

.plantillas-rapidas { display: flex; flex-wrap: wrap; gap: 6px; margin-top: var(--space-2); }
.btn-plantilla {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: var(--text-xs);
  font-weight: 700;
  cursor: pointer;
  transition: background 160ms ease, border-color 160ms ease, color 160ms ease;
}
.btn-plantilla:hover { background: var(--color-primary-soft); border-color: var(--color-primary); color: var(--color-primary-dark); }
.btn-plantilla:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }

.campo-checkbox { display: flex; align-items: flex-start; gap: 8px; margin: var(--space-3) 0 0; font-size: var(--text-sm); color: var(--color-text); }
.campo-checkbox input { margin-top: 3px; width: 16px; height: 16px; accent-color: var(--color-primary); flex: 0 0 auto; }
.campo-checkbox label { cursor: pointer; flex: 1; }
.ayuda-campo { display: block; font-size: var(--text-xs); color: var(--color-muted); font-weight: 400; margin-top: 2px; }

.cali-segmentos { display: flex; flex-wrap: wrap; gap: 6px; margin-top: var(--space-2); }
.cali-segmentos label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1.5px solid var(--color-border);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-muted);
  cursor: pointer;
}
.cali-segmentos input { accent-color: var(--color-primary); }
.cali-segmentos label:has(input:checked) {
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
  color: var(--color-primary-dark);
}

/* validacion */
.resumen-validacion { margin-top: var(--space-3); font-size: var(--text-sm); }
.resumen-validacion__ok { color: var(--color-success); margin: 0; }
.resumen-validacion__warn { color: var(--color-warning); margin: 0; }
.lineas-invalidas { margin-top: 6px; font-size: var(--text-xs); color: var(--color-muted); }
.lineas-invalidas__titulo { font-weight: 800; margin: 0 0 4px; }
.linea-invalida { display: flex; gap: 8px; padding: 2px 0; }
.linea-invalida__numero { white-space: nowrap; color: var(--color-soft); }
.linea-invalida code { background: var(--color-surface-2); border-radius: 4px; padding: 1px 6px; }

/* acciones */
.cali-acciones { display: flex; flex-direction: column; gap: var(--space-2); }
.acciones-botones { display: flex; gap: var(--space-2); flex-wrap: wrap; }
.acciones-botones .btn { flex: 1 1 auto; }
.cali-estado { margin: 0; min-height: 18px; font-size: var(--text-xs); color: var(--color-muted); }
.cali-estado.error { color: var(--color-error); }
.cali-estado.exito { color: var(--color-success); }

/* preview */
.cali-previa {
  position: sticky;
  top: calc(var(--header-height, 80px) + var(--space-4));
  min-width: 0;
}
.cali-previa-barra { display: flex; align-items: center; justify-content: space-between; gap: var(--space-2); margin-bottom: var(--space-2); }
.cali-previa-barra h2 { margin: 0; font-family: var(--font-heading); font-size: var(--text-lg); color: var(--color-ink); }
.cali-chip-huecos {
  background: var(--color-primary-soft);
  color: var(--color-primary-dark);
  border-radius: 999px;
  padding: 4px 12px;
  font-size: var(--text-xs);
  font-weight: 800;
  white-space: nowrap;
}
.contenedor-previa {
  background: var(--color-bg);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-lg, 16px);
  padding: var(--space-4);
  min-height: 420px;
  max-height: calc(100vh - var(--header-height, 80px) - 120px);
  overflow-y: auto;
}

.bloque-set__titulo {
  font-size: var(--text-sm);
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-primary-dark);
  margin: 0 0 10px;
}
.bloque-set__titulo--salto { margin-top: 26px; }

/* instrucciones de impresion */
.instrucciones-impresion {
  margin-top: var(--space-4);
  padding: 12px 14px;
  background: #fff8e7;
  border: 1px solid #f0d97a;
  border-left: 4px solid var(--color-warning);
  border-radius: var(--radius-md, 8px);
  font-size: var(--text-xs);
}
.instrucciones-impresion__titulo {
  margin: 0 0 6px;
  font-size: var(--text-sm);
  color: #8a5e0c;
}
.instrucciones-impresion__lista { margin: 0; padding-left: 18px; }
.instrucciones-impresion__lista li { margin-bottom: 4px; }

/* vista previa de tarjetas */
.pagina-tarjetas {
  background: #fff;
  border: 1px solid var(--color-border);
  padding: 16px;
  margin-bottom: 16px;
  border-radius: var(--radius-md, 8px);
}
.pagina-tarjetas--salto { margin-top: 32px; position: relative; }
.pagina-tarjetas--salto::before {
  content: "— salto de página —";
  display: block;
  position: absolute;
  top: -22px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.78rem;
  color: var(--color-muted);
  background: var(--color-bg);
  padding: 2px 8px;
  border: 1px dashed var(--color-border);
  border-radius: 10px;
}
.pagina-tarjetas__encabezado {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-muted);
  margin-bottom: 8px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--color-border);
}

/* Cuadrícula de tarjetas — mismas dimensiones en anverso y reverso
   (garantía de correspondencia posicional) */
.tarjetas-grid {
  display: grid;
  grid-template-columns: repeat(var(--cols, 2), 1fr);
  grid-template-rows: repeat(var(--filas, 3), 1fr);
  gap: 4px;
  aspect-ratio: 1 / 1.4;
  background: #fafbfc;
  padding: 4px;
  border: 1px solid var(--color-border);
}

.tarjeta-flashcard {
  position: relative;
  border: 1px dashed #999;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
  text-align: center;
  overflow: hidden;
}
.tarjeta-flashcard--anverso { background: #f5f9fd; border-color: var(--color-primary); }
.tarjeta-flashcard--reverso { background: #fff8e7; border-color: var(--color-warning); }
.tarjeta-flashcard--vacia {
  background: repeating-linear-gradient(
    45deg,
    #f4f4f4,
    #f4f4f4 6px,
    #e8e8e8 6px,
    #e8e8e8 12px
  );
  border-style: dotted;
}

.tarjeta-flashcard__contenido {
  font-size: var(--text-sm);
  line-height: 1.3;
  word-break: break-word;
  hyphens: auto;
}
.tarjeta-flashcard--reverso .tarjeta-flashcard__contenido { font-size: var(--text-xs); }

.tarjeta-flashcard__referencia {
  position: absolute;
  top: 3px;
  left: 4px;
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--color-muted);
  background: rgba(255, 255, 255, 0.85);
  padding: 1px 4px;
  border-radius: 3px;
}

/* estado vacio */
.estado-vacio {
  text-align: center;
  padding: 60px 20px;
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg, 16px);
  background: var(--color-surface);
  color: var(--color-muted);
  margin: 40px auto;
  max-width: 440px;
}
.estado-vacio__titulo { font-size: var(--text-lg); font-weight: 800; color: var(--color-ink); margin: 0 0 6px; }
.estado-vacio__cuerpo { margin: 0; font-size: var(--text-sm); }

.oculto { display: none !important; }
.resumen-validacion.oculto { display: none !important; }

@media (max-width: 1020px) {
  .cali-stage { grid-template-columns: 1fr; }
  .cali-previa { position: static; }
  .contenedor-previa { max-height: none; }
}
@media (max-width: 520px) {
  .acciones-botones .btn { flex: 1 1 100%; }
}