:root {
  --fondo: #14091f;
  --fondo-2: #2a0f3d;
  --calabaza: #ff7a1a;
  --calabaza-oscura: #c9520a;
  --hueso: #fbf3e4;
  --tinta: #1b0f24;
  --lila: #b98cff;
  --verde-baba: #9be15d;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body { height: 100%; }

body {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  padding:
    max(12px, env(safe-area-inset-top))
    max(16px, env(safe-area-inset-right))
    max(16px, env(safe-area-inset-bottom))
    max(16px, env(safe-area-inset-left));
  background:
    radial-gradient(circle at 80% 8%, rgba(255, 228, 160, .18) 0 38px, transparent 39px),
    radial-gradient(ellipse at 50% 120%, var(--fondo-2), var(--fondo) 70%);
  background-color: var(--fondo);
  color: var(--hueso);
  font-family: "Nunito", system-ui, sans-serif;
  -webkit-tap-highlight-color: transparent;
  -webkit-user-select: none;
  user-select: none;
  overscroll-behavior: none;
  touch-action: manipulation;
}

/* ---------- Cabecera ---------- */
.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 4px 4px 12px;
}

h1 {
  font-family: "Creepster", cursive;
  font-weight: 400;
  font-size: clamp(1.9rem, 9vw, 2.6rem);
  letter-spacing: .04em;
  color: var(--calabaza);
  text-shadow: 0 3px 0 #000, 0 0 18px rgba(255, 122, 26, .45);
  line-height: 1;
}

.contador {
  font-weight: 800;
  font-size: .95rem;
  color: var(--lila);
  white-space: nowrap;
}

[hidden] { display: none !important; }

.acciones { display: flex; align-items: center; gap: 8px; }

.boton-icono {
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, .1);
  font-size: 1.3rem;
  line-height: 1;
  cursor: pointer;
}

.boton-icono:active { background: rgba(255, 255, 255, .22); }
.boton-icono:focus-visible { outline: 3px solid var(--lila); outline-offset: 2px; }

/* ---------- Ayuda para instalar en iOS ---------- */
.ayuda {
  position: fixed;
  inset: 0;
  z-index: 10;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 16px max(16px, env(safe-area-inset-bottom));
  background: rgba(0, 0, 0, .6);
}

.ayuda-caja {
  width: 100%;
  max-width: 520px;
  padding: 22px 20px 20px;
  border-radius: 22px;
  background: var(--fondo-2);
  border: 2px solid var(--calabaza);
}

.ayuda h2 {
  font-family: "Creepster", cursive;
  font-weight: 400;
  font-size: 1.8rem;
  color: var(--calabaza);
  margin-bottom: 12px;
}

.ayuda ol { padding-left: 1.3em; margin-bottom: 20px; line-height: 1.6; font-size: 1.05rem; }

/* ---------- Tarjeta ---------- */
.mesa {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  perspective: 1400px;
  min-height: 0;
}

.tarjeta {
  all: unset;
  display: block;
  width: 100%;
  height: 100%;
  max-width: 520px;
  max-height: 640px;
  cursor: pointer;
  border-radius: 24px;
}

.tarjeta:focus-visible { outline: 3px solid var(--lila); outline-offset: 4px; }
.tarjeta:disabled { cursor: default; }

.tarjeta-interior {
  position: relative;
  display: block;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  transition: transform .55s cubic-bezier(.3, 1.4, .5, 1);
}

.tarjeta.girada .tarjeta-interior { transform: rotateY(180deg); }

/* Al cambiar de pregunta se tapa sin animación, para no enseñar la respuesta nueva. */
.tarjeta.sin-transicion .tarjeta-interior { transition: none; }

.tarjeta:active .tarjeta-interior { scale: .985; }

.cara {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 28px 22px;
  border-radius: 24px;
  text-align: center;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  overflow: hidden;
  box-shadow: 0 18px 40px rgba(0, 0, 0, .55), inset 0 0 0 3px rgba(0, 0, 0, .15);
}

.cara-frente {
  background:
    radial-gradient(circle at 15% 12%, rgba(255, 255, 255, .25), transparent 40%),
    linear-gradient(160deg, var(--calabaza), var(--calabaza-oscura));
  color: var(--tinta);
}

.cara-dorso {
  transform: rotateY(180deg);
  background:
    radial-gradient(circle at 85% 10%, rgba(185, 140, 255, .25), transparent 45%),
    linear-gradient(160deg, #3a1656, #1d0a2c);
  color: var(--hueso);
  border: 3px solid var(--calabaza);
}

.etiqueta {
  font-size: .8rem;
  font-weight: 800;
  letter-spacing: .18em;
  text-transform: uppercase;
  opacity: .7;
}

.pregunta {
  font-weight: 800;
  font-size: clamp(1.45rem, 6.6vw, 2.1rem);
  line-height: 1.2;
  overflow-wrap: anywhere;
}

.pregunta-pequena {
  font-size: clamp(1.05rem, 4.6vw, 1.35rem);
  font-weight: 600;
  opacity: .85;
}

.respuesta {
  font-family: "Creepster", cursive;
  font-size: clamp(2rem, 10vw, 3rem);
  line-height: 1.1;
  letter-spacing: .03em;
  color: var(--verde-baba);
  text-shadow: 0 3px 0 #000;
  overflow-wrap: anywhere;
}

.separador { font-size: 1.6rem; }

.pista {
  margin-top: auto;
  font-size: .9rem;
  font-weight: 600;
  opacity: .75;
}

.cara-frente .pista { animation: latido 2.2s ease-in-out infinite; }

/* Empuja el contenido al centro y la pista al fondo. */
.cara > .etiqueta:first-child { margin-top: auto; }

@keyframes latido {
  0%, 100% { opacity: .55; }
  50% { opacity: 1; }
}

/* ---------- Botón ---------- */
.abajo { padding-top: 16px; display: flex; justify-content: center; }

.boton-siguiente {
  width: 100%;
  max-width: 520px;
  min-height: 64px;
  border: 0;
  border-radius: 18px;
  background: var(--hueso);
  color: var(--tinta);
  font: 800 1.35rem "Nunito", system-ui, sans-serif;
  box-shadow: 0 6px 0 #8f7f66, 0 12px 24px rgba(0, 0, 0, .4);
  cursor: pointer;
  transition: transform .08s, box-shadow .08s;
}

.boton-siguiente:active { transform: translateY(4px); box-shadow: 0 2px 0 #8f7f66, 0 6px 14px rgba(0, 0, 0, .4); }
.boton-siguiente:disabled { opacity: .5; }
.boton-siguiente:focus-visible { outline: 3px solid var(--lila); outline-offset: 3px; }

/* ---------- Susto ---------- */
.susto {
  position: fixed;
  inset: 0;
  z-index: 30;
  background: #000;
  overflow: hidden;
}

.susto img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Destello rojo por encima de la imagen. */
.susto::after {
  content: "";
  position: absolute;
  inset: 0;
  background: #c00;
  mix-blend-mode: multiply;
  opacity: 0;
}

.susto.activo { animation: temblor .09s linear infinite; }
.susto.activo img { animation: abalanzarse .35s cubic-bezier(.1, 1.8, .4, 1) both; }
.susto.activo::after { animation: destello .6s steps(2, jump-none) 3; }

@keyframes abalanzarse {
  from { transform: scale(.25); filter: brightness(3); }
  to { transform: scale(1.08); filter: brightness(1); }
}

@keyframes temblor {
  0% { transform: translate(0, 0); }
  25% { transform: translate(-10px, 6px); }
  50% { transform: translate(8px, -8px); }
  75% { transform: translate(-6px, -4px); }
  100% { transform: translate(0, 0); }
}

@keyframes destello {
  from { opacity: .85; }
  to { opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .tarjeta-interior { transition-duration: .01s; }
  .cara-frente .pista { animation: none; }
}