/* Studappy · tema «Raíces y potencias» (mazo gratis de PAES M1).
   Usa la misma tarjeta que Aurora química (clases aq-* de neon.css) y cambia
   la escena: papel milimetrado de noche, la curva exponencial y = 2^x (rosada)
   y la de la raíz y = √x (cian) que se dibujan solas, cuadraditos de 2, 4 y
   8 px que suben (potencias de 2) y un cubo de 2x2x2 bajo una raíz cúbica. */

.deck-card.deck-rp,
.mago-portada.rp-portada,
.store-card.store-rp {
  --rp-rosa: #ff5fb8;
  --rp-rosa-claro: #ffb3dc;
  --rp-cian: #5ee6ff;
  --rp-cian-claro: #c4f6ff;
  --rp-oro: #ffd36b;
  --rp-cielo:
    radial-gradient(ellipse 70% 60% at 18% -12%, rgba(255, 95, 184, 0.24), transparent 70%),
    radial-gradient(ellipse 60% 55% at 92% -4%, rgba(60, 196, 236, 0.22), transparent 72%),
    radial-gradient(ellipse 80% 50% at 50% 115%, rgba(255, 211, 107, 0.1), transparent 70%),
    linear-gradient(180deg, #0b0a2a 0%, #110c36 52%, #190e3b 100%);
  border-color: rgba(255, 95, 184, 0.36);
  background: var(--rp-cielo);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.42), 0 0 40px rgba(255, 95, 184, 0.1);
}

/* ---------- Escena ---------- */

/* Papel milimetrado: líneas finas cada 12 px y gruesas cada 60 px. */
.rp-cuadricula {
  position: absolute;
  inset: -60px;
  background-image:
    linear-gradient(rgba(140, 190, 255, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(140, 190, 255, 0.07) 1px, transparent 1px),
    linear-gradient(rgba(140, 190, 255, 0.13) 1px, transparent 1px),
    linear-gradient(90deg, rgba(140, 190, 255, 0.13) 1px, transparent 1px);
  background-size: 12px 12px, 12px 12px, 60px 60px, 60px 60px;
  -webkit-mask-image: radial-gradient(ellipse 75% 85% at 55% 45%, #000 30%, transparent 78%);
  mask-image: radial-gradient(ellipse 75% 85% at 55% 45%, #000 30%, transparent 78%);
  animation: rp-deslizar 24s linear infinite;
}

@keyframes rp-deslizar {
  from { transform: translate(0, 0); }
  to { transform: translate(60px, -60px); }
}

/* Resplandor bajo el cubo. */
.rp-brillo {
  position: absolute;
  bottom: -34%;
  left: 50%;
  width: 72%;
  aspect-ratio: 1.6;
  border-radius: 50%;
  background: radial-gradient(ellipse, rgba(255, 95, 184, 0.22), rgba(94, 230, 255, 0.08) 45%, transparent 68%);
  transform: translateX(-50%);
}

/* Las dos curvas: se dibujan, se quedan un rato y se borran. */
.rp-curvas {
  position: absolute;
  inset: 8% 0 0;
  width: 100%;
  height: 92%;
  overflow: visible;
}

.rp-curva {
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-dasharray: 100 100;
  stroke-dashoffset: 100;
  opacity: 0.55;
  animation: rp-dibujar 12s ease-in-out infinite;
}

.rp-curva.rp-exp {
  stroke: var(--rp-rosa);
}

.rp-curva.rp-raiz {
  stroke: var(--rp-cian);
  animation-delay: -6s;
}

/* Halo: la misma curva, más ancha y transparente (brillo neón). */
.rp-curva.rp-halo {
  stroke-width: 7;
  opacity: 0.16;
}

@keyframes rp-dibujar {
  0% { stroke-dashoffset: 100; }
  40%, 70% { stroke-dashoffset: 0; }
  100% { stroke-dashoffset: -100; }
}

/* Un destello corto que recorre cada curva. */
.rp-destello {
  fill: none;
  stroke-width: 3;
  stroke-linecap: round;
  stroke-dasharray: 3 200;
  stroke-dashoffset: 3;
  animation: rp-recorrer 6s linear infinite;
}

.rp-destello.rp-exp {
  stroke: #fff0f8;
}

.rp-destello.rp-raiz {
  stroke: #effdff;
  animation-duration: 7.5s;
  animation-delay: -3s;
}

@keyframes rp-recorrer {
  from { stroke-dashoffset: 3; }
  to { stroke-dashoffset: -100; }
}

/* Cuadraditos de 2, 4 y 8 px que suben girando: potencias de 2. */
.rp-cuadro {
  position: absolute;
  bottom: -10px;
  left: var(--x);
  width: var(--s);
  height: var(--s);
  border: 1px solid var(--rp-rosa-claro);
  box-shadow: 0 0 6px rgba(255, 95, 184, 0.8);
  opacity: 0;
  animation: rp-subir var(--t) linear var(--d) infinite;
}

.rp-cuadro:nth-of-type(3n) {
  border-color: var(--rp-cian-claro);
  box-shadow: 0 0 6px rgba(94, 230, 255, 0.8);
}

.rp-cuadro:nth-of-type(4n) {
  border-color: #ffe39a;
  box-shadow: 0 0 6px rgba(255, 211, 107, 0.8);
}

@keyframes rp-subir {
  0% { transform: translateY(0) rotate(0deg); opacity: 0; }
  12% { opacity: 0.9; }
  75% { opacity: 0.55; }
  100% { transform: translateY(-340px) rotate(180deg); opacity: 0; }
}

.rp-flota {
  opacity: 0.85;
  filter: drop-shadow(0 0 8px rgba(255, 95, 184, 0.35));
}

.rp-flota:nth-of-type(even) {
  filter: drop-shadow(0 0 8px rgba(94, 230, 255, 0.35));
}

.rp-flota .px-icono,
.rp-img {
  image-rendering: pixelated;
}

/* El cubo flota y la raíz brilla. */
.rp-img {
  filter: drop-shadow(0 0 18px rgba(255, 95, 184, 0.35)) drop-shadow(0 0 10px rgba(255, 211, 107, 0.18)) drop-shadow(0 6px 0 rgba(0, 0, 0, 0.35));
}

/* ---------- Tarjeta en Mis mazos ---------- */

.deck-card.deck-rp:hover,
.deck-card.deck-rp:focus-within {
  border-color: rgba(255, 179, 220, 0.62);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.48), 0 0 46px rgba(255, 95, 184, 0.18);
}

.aq-arte .rp-img {
  width: 96px;
  margin: 8px 46px 0 0;
}

.deck-rp .aq-menu .deck-owned-badge,
.deck-rp .aq-menu .icon-btn {
  background: rgba(20, 12, 46, 0.86);
}

/* Tres submazos en una fila: ícono y avance (el nombre va en el título). */
.deck-rp .aq-chips {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px;
}

.deck-rp .aq-sub {
  justify-content: center;
  gap: 6px;
  padding: 7px 4px;
  border-color: rgba(255, 95, 184, 0.24);
  background: rgba(24, 14, 54, 0.78);
}

.deck-rp .aq-sub .px-icono {
  width: 24px;
  height: 24px;
}

.deck-rp .aq-sub-num {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.deck-rp .aq-sub-txt strong {
  font-family: var(--font-pixel);
  font-size: 0.66rem;
  font-weight: 400;
}

.deck-rp .aq-sub:hover,
.deck-rp .aq-sub:focus-visible {
  border-color: rgba(255, 179, 220, 0.66);
  background: rgba(40, 20, 74, 0.94);
}

.deck-rp .aq-sub.completo {
  border-color: rgba(94, 230, 255, 0.6);
}

.deck-rp .aq-sub-num,
.rp-submazos .submazo-num {
  color: #7fe0ff;
}

.deck-rp .aq-cuerpo > .eyebrow,
.rp-portada .eyebrow,
.store-rp .sm-cuerpo .eyebrow {
  color: var(--rp-rosa-claro);
}

.deck-rp .mini-bar > span,
.rp-portada .mini-bar > span,
.rp-submazos .submazo .mini-bar > span,
.study-rp .mini-bar > span {
  background: linear-gradient(90deg, #ff5fb8, #ffd36b 50%, #5ee6ff);
  opacity: 1;
}

html.dark-mode .deck-rp .btn.primary,
html.dark-mode .rp-portada .btn.primary,
html.dark-mode .store-rp .btn.primary {
  border: 1px solid rgba(255, 95, 184, 0.6);
  background: #3a1146;
  color: #fff0f8;
}

html.dark-mode .deck-rp .btn.primary:hover,
html.dark-mode .rp-portada .btn.primary:hover,
html.dark-mode .store-rp .btn.primary:hover {
  border-color: rgba(255, 179, 220, 0.95);
  background: #4c1a5c;
  color: #ffffff;
}

/* ---------- Portada del mazo y submazos ---------- */

.mago-portada.aq-portada.rp-portada {
  border-color: rgba(255, 95, 184, 0.36);
}

.rp-portada p {
  color: #d8cdf0;
}

.mago-portada-img .rp-img {
  width: min(280px, 82%);
}

.rp-submazos .submazo:hover,
.rp-submazos .submazo:focus-visible {
  border-color: rgba(255, 95, 184, 0.55);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.36), 0 0 26px rgba(255, 95, 184, 0.16);
}

.rp-submazos .submazo-icono,
.study-rp .ready-icon.ready-px {
  border-color: rgba(255, 95, 184, 0.34);
  background: radial-gradient(circle, rgba(255, 95, 184, 0.24), rgba(24, 14, 54, 0.75));
}

.rp-submazos .submazo-icono .px-icono,
.study-rp .ready-icon .px-icono {
  image-rendering: pixelated;
}

.rp-submazos .submazo-jugar {
  border-color: rgba(255, 95, 184, 0.55);
  background: #3a1146;
  color: #fff0f8;
}

.rp-submazos .submazo:hover .submazo-jugar {
  border-color: rgba(255, 179, 220, 0.95);
  background: #4c1a5c;
}

/* ---------- Estudio: carta rosada, respuesta cian ---------- */

.study-rp {
  --carta-a: #e0479e;
  --carta-b: #6b2aa8;
}

.study-rp .flashcard-back {
  background: linear-gradient(140deg, #2a9fd0, #3a4fb8);
}

.study-rp .flashcard-front .flashcard-kicker {
  color: #ffd0ea;
}

.study-rp .flashcard-back .flashcard-kicker {
  color: #c4f6ff;
}

/* Fórmulas en bloque más compactas (muchas tarjetas tienen una), y las
   alternativas A, B, C y D con un poco de aire. */
.study-rp .flashcard-text .katex-display {
  margin: 0.35em 0 0.55em;
  padding: 0.3em 0;
  border-top: 1px solid rgba(255, 95, 184, 0.18);
  border-bottom: 1px solid rgba(255, 95, 184, 0.18);
}

.study-rp .flashcard-text p + p {
  margin-top: 0.1em;
}

/* ---------- Tienda ---------- */

.store-card.store-rp:hover {
  border-color: rgba(255, 179, 220, 0.62);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.45), 0 0 40px rgba(255, 95, 184, 0.18);
}

.sa-arte .rp-img {
  width: 150px;
  margin-top: 8px;
}

.store-rp .sm-cuerpo > p:not(.store-message) {
  color: #d8cdf0;
}

.store-rp .sm-submazo {
  border-color: rgba(255, 95, 184, 0.26);
  background: rgba(24, 14, 54, 0.78);
}

.store-rp .store-badge.sa-badge {
  border-color: rgba(94, 230, 255, 0.5);
  background: #0e2a44;
  color: #c4f6ff;
}

/* «Gratis» en dorado, como una moneda que no se paga. */
.store-rp .store-badge.sa-gratis {
  border-color: rgba(255, 211, 107, 0.7);
  background: #3a2a08;
  color: #ffe6a6;
  font-family: var(--font-pixel);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ---------- Pantallas angostas y sin animación ---------- */

@media (max-width: 720px) {
  .study-rp .flashcard-text {
    font-size: 0.95rem;
    line-height: 1.5;
  }

  .sa-arte .rp-img {
    width: 128px;
  }

  .mago-portada-img .rp-img {
    width: min(210px, 64%);
  }
}

@media (prefers-reduced-motion: reduce) {
  .rp-cuadricula,
  .rp-curva,
  .rp-destello,
  .rp-cuadro {
    animation: none;
  }

  .rp-curva {
    stroke-dashoffset: 0;
  }

  .rp-destello,
  .rp-cuadro {
    display: none;
  }
}