/* ============================================================
   PATRIMONIO VITIVINÍCOLA DE BULLAS
   Archivo: css/estilos.css
   Descripción: Todos los estilos de la aplicación.
   Para cambiar colores principales, edita las variables de :root
============================================================ */

/* ============================================================
   VARIABLES DE COLOR Y DISEÑO
   Edita aquí para cambiar la paleta de colores global
============================================================ */
:root {
  --morado-oscuro:  #3b1f52;
  --morado-medio:   #5e3278;
  --morado-vivo:    #7d4a9e;
  --lavanda:        #b89ec4;
  --lavanda-claro:  #e8dff0;
  --crema:          #faf6f0;
  --crema-oscura:   #f0e8d8;
  --dorado:         #c9954a;
  --dorado-claro:   #e8c07a;
  --texto-oscuro:   #1e0f2e;
  --texto-medio:    #4a3558;
  --texto-claro:    #7a6588;
  --blanco:         #ffffff;
  --verde-ok:       #4caf50;
  --verde-ok-claro: #e6f4ea;
  --verde-ok-texto: #1b5e20;
  --rojo-error:     #e53935;
  --rojo-claro:     #fde8e8;
  --rojo-texto:     #b71c1c;
  --sombra-suave:   0 4px 24px rgba(59,31,82,0.10);
  --sombra-media:   0 8px 40px rgba(59,31,82,0.16);
  --radio:          14px;
  --radio-grande:   24px;
  --transicion:     0.3s cubic-bezier(0.4,0,0.2,1);
}

/* ============================================================
   RESET Y BASE
============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--crema);
  color: var(--texto-oscuro);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Fondo decorativo */
body::before {
  content: '';
  position: fixed;
  top: -20%;
  right: -15%;
  width: 60vw;
  height: 60vw;
  background: radial-gradient(ellipse, rgba(125,74,158,0.08) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

h1, h2, h3 {
  font-family: 'Cormorant Garamond', serif;
  letter-spacing: -0.01em;
}

/* ============================================================
   HERO / CABECERA
============================================================ */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--morado-oscuro) 0%, var(--morado-medio) 55%, #8b3a6e 100%);
  color: var(--blanco);
  padding: 64px 24px 80px;
  text-align: center;
  overflow: hidden;
  z-index: 1;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Ccircle cx='30' cy='30' r='4'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}

.hero-decoracion {
  position: absolute;
  font-size: 160px;
  opacity: 0.06;
  top: -10px;
  left: -20px;
  pointer-events: none;
  user-select: none;
  line-height: 1;
}

.hero-decoracion-der {
  left: auto;
  right: -20px;
  top: auto;
  bottom: -20px;
}

.hero-etiqueta {
  display: inline-block;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--dorado-claro);
  border: 1px solid rgba(232,192,122,0.4);
  padding: 6px 18px;
  border-radius: 100px;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 600;
  line-height: 1.1;
  margin-bottom: 12px;
}

.hero h1 em {
  color: var(--dorado-claro);
  font-style: italic;
}

.hero-subtitulo {
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  opacity: 0.75;
  max-width: 520px;
  margin: 0 auto 32px;
  line-height: 1.6;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
  margin-top: 40px;
}

.stat { text-align: center; }

.stat-num {
  display: block;
  font-family: 'Cormorant Garamond', serif;
  font-size: 2.2rem;
  font-weight: 600;
  color: var(--dorado-claro);
  line-height: 1;
}

.stat-label {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.6;
  margin-top: 4px;
}

/* ============================================================
   NAVEGACIÓN DE MÓDULOS
============================================================ */
.nav-modulos {
  position: sticky;
  top: 0;
  background: rgba(250,246,240,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(125,74,158,0.12);
  z-index: 100;
  padding: 0 16px;
}

.nav-modulos-inner {
  display: flex;
  max-width: 860px;
  margin: 0 auto;
  overflow-x: auto;
  scrollbar-width: none;
}

.nav-modulos-inner::-webkit-scrollbar { display: none; }

.nav-btn {
  flex-shrink: 0;
  background: none;
  border: none;
  padding: 16px 20px;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--texto-claro);
  cursor: pointer;
  transition: color var(--transicion);
  position: relative;
  white-space: nowrap;
}

.nav-btn::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 20px;
  right: 20px;
  height: 2px;
  background: var(--morado-vivo);
  border-radius: 2px 2px 0 0;
  transform: scaleX(0);
  transition: transform var(--transicion);
}

.nav-btn:hover { color: var(--morado-vivo); }
.nav-btn.activo { color: var(--morado-oscuro); font-weight: 600; }
.nav-btn.activo::after { transform: scaleX(1); }

/* ============================================================
   CONTENEDOR PRINCIPAL
============================================================ */
.app-wrapper {
  max-width: 860px;
  margin: 0 auto;
  padding: 40px 20px 80px;
  position: relative;
  z-index: 1;
}

/* ============================================================
   MÓDULOS (pantallas)
============================================================ */
.modulo {
  display: none;
  animation: entradaModulo 0.4s var(--transicion);
}

.modulo.activo { display: block; }

@keyframes entradaModulo {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   TÍTULOS DE SECCIÓN
============================================================ */
.seccion-titulo {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(1.7rem, 4vw, 2.4rem);
  font-weight: 600;
  color: var(--morado-oscuro);
  margin-bottom: 8px;
  line-height: 1.2;
}

.seccion-subtitulo {
  font-size: 0.95rem;
  color: var(--texto-claro);
  margin-bottom: 32px;
  font-weight: 300;
}

/* ============================================================
   TARJETAS DE CONTENIDO EDUCATIVO
============================================================ */
.tarjeta-contenido {
  background: var(--blanco);
  border-radius: var(--radio-grande);
  box-shadow: var(--sombra-suave);
  padding: 32px;
  margin-bottom: 20px;
  border: 1px solid rgba(125,74,158,0.08);
  transition: box-shadow var(--transicion), transform var(--transicion);
  position: relative;
  overflow: hidden;
  animation: subirEntrar 0.5s var(--transicion) both;
}

.tarjeta-contenido::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(to bottom, var(--morado-vivo), var(--dorado));
  border-radius: var(--radio-grande) 0 0 var(--radio-grande);
}

.tarjeta-contenido:hover {
  box-shadow: var(--sombra-media);
  transform: translateY(-2px);
}

.tarjeta-contenido:nth-child(2) { animation-delay: 0.08s; }
.tarjeta-contenido:nth-child(3) { animation-delay: 0.16s; }
.tarjeta-contenido:nth-child(4) { animation-delay: 0.24s; }
.tarjeta-contenido:nth-child(5) { animation-delay: 0.32s; }

.tarjeta-icono {
  font-size: 2rem;
  margin-bottom: 12px;
  display: block;
}

.tarjeta-contenido h3 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--morado-oscuro);
  margin-bottom: 12px;
}

.tarjeta-contenido p {
  color: var(--texto-medio);
  line-height: 1.75;
  font-size: 0.95rem;
}

.dato-destacado {
  background: linear-gradient(135deg, var(--lavanda-claro), var(--crema-oscura));
  border-radius: var(--radio);
  padding: 20px 24px;
  margin-top: 16px;
  border-left: 3px solid var(--morado-vivo);
}

.dato-destacado p {
  font-size: 0.9rem;
  color: var(--texto-oscuro);
  font-weight: 500;
}

/* ============================================================
   BOTÓN PRINCIPAL
============================================================ */
.boton-empezar {
  display: block;
  width: 100%;
  max-width: 320px;
  margin: 36px auto 0;
  background: linear-gradient(135deg, var(--morado-medio), var(--morado-vivo));
  color: var(--blanco);
  border: none;
  padding: 16px 32px;
  border-radius: 100px;
  font-family: 'DM Sans', sans-serif;
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: all var(--transicion);
  box-shadow: 0 4px 20px rgba(125,74,158,0.35);
}

.boton-empezar:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(125,74,158,0.45);
}

.boton-empezar:active { transform: translateY(0); }

/* ============================================================
   BARRA DE PROGRESO
============================================================ */
.barra-progreso-wrapper { margin-bottom: 32px; }

.progreso-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
  font-size: 0.82rem;
  color: var(--texto-claro);
  font-weight: 500;
}

.progreso-puntos {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.1rem;
  color: var(--morado-vivo);
  font-weight: 600;
}

.barra-progreso {
  height: 6px;
  background: var(--lavanda-claro);
  border-radius: 100px;
  overflow: hidden;
}

.barra-fill {
  height: 100%;
  background: linear-gradient(to right, var(--morado-medio), var(--morado-vivo));
  border-radius: 100px;
  transition: width 0.6s cubic-bezier(0.4,0,0.2,1);
}

/* ============================================================
   TARJETA DE PREGUNTA
============================================================ */
.tarjeta-pregunta {
  background: var(--blanco);
  border-radius: var(--radio-grande);
  box-shadow: var(--sombra-media);
  padding: 36px 32px;
  border: 1px solid rgba(125,74,158,0.10);
  position: relative;
  animation: subirEntrar 0.4s var(--transicion) both;
}

.pregunta-tipo {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--lavanda);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.pregunta-tipo::before {
  content: '';
  display: inline-block;
  width: 20px;
  height: 1px;
  background: var(--lavanda);
}

.pregunta-texto {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(1.2rem, 3vw, 1.55rem);
  font-weight: 600;
  color: var(--texto-oscuro);
  line-height: 1.4;
  margin-bottom: 28px;
}

/* ============================================================
   OPCIONES VERDADERO / FALSO
============================================================ */
.opciones-vf {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.opcion-btn {
  background: var(--crema);
  border: 2px solid var(--lavanda-claro);
  border-radius: var(--radio);
  padding: 18px 24px;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--texto-medio);
  cursor: pointer;
  transition: all var(--transicion);
  text-align: center;
}

.opcion-btn:hover:not(:disabled) {
  border-color: var(--morado-vivo);
  color: var(--morado-oscuro);
  background: var(--lavanda-claro);
  transform: translateY(-1px);
}

.opcion-btn.correcta         { background: var(--verde-ok-claro); border-color: var(--verde-ok); color: var(--verde-ok-texto); }
.opcion-btn.incorrecta       { background: var(--rojo-claro);     border-color: var(--rojo-error); color: var(--rojo-texto); }
.opcion-btn.mostrar-correcta { background: var(--verde-ok-claro); border-color: var(--verde-ok); color: var(--verde-ok-texto); }
.opcion-btn:disabled { cursor: default; }

/* ============================================================
   OPCIONES SELECCIÓN MÚLTIPLE
============================================================ */
.opciones-multiple {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.opcion-multiple-btn {
  background: var(--crema);
  border: 2px solid var(--lavanda-claro);
  border-radius: var(--radio);
  padding: 16px 20px;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.92rem;
  color: var(--texto-medio);
  cursor: pointer;
  transition: all var(--transicion);
  text-align: left;
  display: flex;
  align-items: center;
  gap: 12px;
}

.opcion-letra {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--lavanda-claro);
  color: var(--morado-vivo);
  font-size: 0.78rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--transicion);
}

.opcion-multiple-btn:hover:not(:disabled) {
  border-color: var(--morado-vivo);
  color: var(--morado-oscuro);
  background: var(--lavanda-claro);
}

.opcion-multiple-btn:hover:not(:disabled) .opcion-letra {
  background: var(--morado-vivo);
  color: var(--blanco);
}

.opcion-multiple-btn.correcta         { background: var(--verde-ok-claro); border-color: var(--verde-ok); color: var(--verde-ok-texto); }
.opcion-multiple-btn.correcta .opcion-letra        { background: var(--verde-ok); color: #fff; }
.opcion-multiple-btn.incorrecta       { background: var(--rojo-claro);     border-color: var(--rojo-error); color: var(--rojo-texto); }
.opcion-multiple-btn.incorrecta .opcion-letra      { background: var(--rojo-error); color: #fff; }
.opcion-multiple-btn.mostrar-correcta { background: var(--verde-ok-claro); border-color: var(--verde-ok); color: var(--verde-ok-texto); }
.opcion-multiple-btn.mostrar-correcta .opcion-letra { background: var(--verde-ok); color: #fff; }
.opcion-multiple-btn:disabled { cursor: default; }

/* ============================================================
   COMPLETAR HUECOS
============================================================ */
.frase-completar {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(1.1rem, 2.5vw, 1.4rem);
  line-height: 2.2;
  color: var(--texto-oscuro);
  margin-bottom: 24px;
}

.hueco {
  display: inline-block;
  min-width: 110px;
  border-bottom: 2.5px solid var(--morado-vivo);
  margin: 0 6px;
  text-align: center;
  color: var(--morado-oscuro);
  font-weight: 600;
  padding: 2px 8px;
  vertical-align: bottom;
  transition: all var(--transicion);
}

.hueco.relleno  { background: var(--lavanda-claro); border-radius: 6px; border-bottom-color: var(--morado-medio); }
.hueco.correcto { background: var(--verde-ok-claro); border-bottom-color: var(--verde-ok); color: var(--verde-ok-texto); }
.hueco.incorrecto { background: var(--rojo-claro); border-bottom-color: var(--rojo-error); color: var(--rojo-texto); }

.bloques-palabras {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
  min-height: 52px;
  padding: 12px;
  background: var(--crema-oscura);
  border-radius: var(--radio);
  align-items: flex-start;
  align-content: flex-start;
}

.bloque-palabra {
  background: var(--blanco);
  border: 2px solid var(--lavanda);
  border-radius: 8px;
  padding: 8px 16px;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--morado-oscuro);
  cursor: pointer;
  transition: all var(--transicion);
  user-select: none;
}

.bloque-palabra:hover:not(.usado) {
  background: var(--lavanda-claro);
  border-color: var(--morado-vivo);
  transform: translateY(-2px);
}

.bloque-palabra.usado {
  opacity: 0.3;
  cursor: default;
  transform: none;
}

/* ============================================================
   FEEDBACK
============================================================ */
.feedback-box {
  margin-top: 20px;
  padding: 16px 20px;
  border-radius: var(--radio);
  font-size: 0.9rem;
  font-weight: 500;
  display: none;
  animation: feedbackEntrada 0.3s var(--transicion);
  line-height: 1.6;
}

.feedback-box.correcto  { display: block; background: var(--verde-ok-claro); color: var(--verde-ok-texto); border-left: 4px solid var(--verde-ok); }
.feedback-box.incorrecto { display: block; background: var(--rojo-claro);     color: var(--rojo-texto);     border-left: 4px solid var(--rojo-error); }

.feedback-icon { font-size: 1.1rem; margin-right: 8px; }

/* ============================================================
   BOTÓN SIGUIENTE
============================================================ */
.btn-siguiente {
  display: none;
  margin-top: 20px;
  width: 100%;
  background: linear-gradient(135deg, var(--morado-medio), var(--morado-vivo));
  color: var(--blanco);
  border: none;
  padding: 15px 32px;
  border-radius: 100px;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: all var(--transicion);
  box-shadow: 0 4px 16px rgba(125,74,158,0.3);
}

.btn-siguiente:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(125,74,158,0.4);
}

.btn-siguiente.visible { display: block; }

/* ============================================================
   PANTALLA DE RESULTADOS
============================================================ */
.resultados-pantalla {
  text-align: center;
  padding: 48px 24px;
}

.resultados-circulo {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--morado-oscuro), var(--morado-vivo));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: 0 auto 28px;
  box-shadow: 0 8px 40px rgba(125,74,158,0.35);
}

.resultados-puntuacion {
  font-family: 'Cormorant Garamond', serif;
  font-size: 3rem;
  font-weight: 600;
  color: var(--blanco);
  line-height: 1;
}

.resultados-de { font-size: 0.75rem; color: rgba(255,255,255,0.65); letter-spacing: 0.1em; }

.resultados-titulo {
  font-family: 'Cormorant Garamond', serif;
  font-size: 2rem;
  color: var(--morado-oscuro);
  margin-bottom: 12px;
}

.resultados-mensaje {
  color: var(--texto-claro);
  font-size: 0.95rem;
  max-width: 400px;
  margin: 0 auto 32px;
  line-height: 1.7;
}

.btn-reiniciar {
  background: none;
  border: 2px solid var(--morado-vivo);
  color: var(--morado-vivo);
  padding: 12px 32px;
  border-radius: 100px;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transicion);
  margin: 0 8px 12px;
}

.btn-reiniciar:hover { background: var(--morado-vivo); color: var(--blanco); }

.btn-reiniciar.primario {
  background: linear-gradient(135deg, var(--morado-medio), var(--morado-vivo));
  color: var(--blanco);
  border-color: transparent;
  box-shadow: 0 4px 16px rgba(125,74,158,0.3);
}

.btn-reiniciar.primario:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(125,74,158,0.4);
}

.logros-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 12px;
  margin-top: 32px;
}

.logro {
  background: var(--blanco);
  border-radius: var(--radio);
  padding: 16px 12px;
  border: 1px solid var(--lavanda-claro);
  text-align: center;
}

.logro-icono { font-size: 1.8rem; margin-bottom: 6px; }
.logro-nombre { font-size: 0.78rem; font-weight: 500; color: var(--texto-medio); }
.logro.bloqueado { opacity: 0.35; filter: grayscale(1); }

/* ============================================================
   GALERÍA / VARIEDADES
============================================================ */
.galeria-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.galeria-tarjeta {
  background: var(--blanco);
  border-radius: var(--radio-grande);
  overflow: hidden;
  box-shadow: var(--sombra-suave);
  border: 1px solid rgba(125,74,158,0.08);
  transition: all var(--transicion);
  animation: subirEntrar 0.5s var(--transicion) both;
}

.galeria-tarjeta:hover {
  transform: translateY(-4px);
  box-shadow: var(--sombra-media);
}

.galeria-imagen {
  height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  background: linear-gradient(135deg, var(--lavanda-claro), var(--crema-oscura));
}

.galeria-cuerpo { padding: 20px; }

.galeria-cuerpo h4 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.2rem;
  color: var(--morado-oscuro);
  margin-bottom: 6px;
}

.galeria-cuerpo p {
  font-size: 0.85rem;
  color: var(--texto-claro);
  line-height: 1.6;
}

.etiqueta-galeria {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: var(--lavanda-claro);
  color: var(--morado-vivo);
  padding: 3px 10px;
  border-radius: 100px;
  margin-bottom: 8px;
}

/* ============================================================
   LÍNEA DE TIEMPO
============================================================ */
.timeline {
  position: relative;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 14px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--morado-vivo), var(--dorado));
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  margin-bottom: 28px;
}

.timeline-dot {
  position: absolute;
  left: -33px;
  top: 4px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--morado-vivo);
  border: 3px solid var(--blanco);
  box-shadow: 0 0 0 2px var(--lavanda);
}

.timeline-anio {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--dorado);
  margin-bottom: 4px;
}

.timeline-titulo {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.15rem;
  color: var(--morado-oscuro);
  margin-bottom: 4px;
}

.timeline-desc {
  font-size: 0.88rem;
  color: var(--texto-claro);
  line-height: 1.6;
}

/* ============================================================
   FOOTER
============================================================ */
.pie {
  text-align: center;
  padding: 32px 20px;
  font-size: 0.8rem;
  color: var(--texto-claro);
  border-top: 1px solid var(--lavanda-claro);
  margin-top: 40px;
  position: relative;
  z-index: 1;
}

.pie strong { color: var(--morado-vivo); font-weight: 500; }

/* ============================================================
   ANIMACIONES
============================================================ */
@keyframes subirEntrar {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes entradaModulo {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes feedbackEntrada {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   RESPONSIVE
============================================================ */
@media (max-width: 600px) {
  .tarjeta-contenido { padding: 24px 20px; }
  .tarjeta-pregunta  { padding: 28px 20px; }
  .hero-stats        { gap: 24px; }
  .resultados-pantalla { padding: 32px 12px; }
  .opciones-vf       { grid-template-columns: 1fr; }
  .btn-reiniciar     { display: block; width: 100%; margin: 8px 0; }
}