/* ================================================================
   SISTEMA DE LOGROS DESBLOQUEADOS — Neo Puzzle Lovers
   Pop-up estilo Steam, esquina inferior derecha.
   El color del borde / brillo depende de la rareza del logro
   (se inyecta por JS como --ach-color en cada tarjeta).
   ================================================================ */

/* ── Contenedor fijo donde se apila la cola (siempre una a la vez) ── */
#achievement-stack {
  position:       fixed;
  right:          1.25rem;
  bottom:         1.25rem;
  z-index:        100000;          /* por encima del banner Konami */
  display:        flex;
  flex-direction: column;
  gap:            0.75rem;
  pointer-events: none;            /* no bloquea clics del sitio */
  max-width:      min(380px, calc(100vw - 2.5rem));
}

/* ── Tarjeta de logro ── */
.achievement-toast {
  --ach-color:      #b8c4d4;       /* fallback (rareza común) */

  display:          grid;
  grid-template-columns: 64px 1fr;
  gap:              0.85rem;
  align-items:      center;
  padding:          0.7rem 0.95rem 0.7rem 0.7rem;
  border-radius:    14px;
  border:           1px solid var(--ach-color);
  background:       linear-gradient(150deg, rgba(12, 7, 20, 0.97), rgba(20, 12, 34, 0.97));
  color:            #f8f2ff;
  font-family:      "Nunito", system-ui, sans-serif;
  pointer-events:   auto;          /* la tarjeta sí es interactiva */
  cursor:           pointer;
  overflow:         hidden;
  backdrop-filter:  blur(8px);

  /* Brillo sutil del borde según rareza */
  box-shadow:
    0 0 0 1px color-mix(in srgb, var(--ach-color) 35%, transparent),
    0 0 18px -2px color-mix(in srgb, var(--ach-color) 55%, transparent),
    0 12px 28px -10px rgba(0, 0, 0, 0.8);

  /* Estado inicial: fuera de pantalla, abajo */
  opacity:    0;
  transform:  translateY(140%);
  will-change: transform, opacity;
}

/* Línea de acento superior con el color de rareza */
.achievement-toast::before {
  content:    "";
  position:   absolute;
  inset:      0 0 auto 0;
  height:     3px;
  background: linear-gradient(90deg, transparent, var(--ach-color), transparent);
  opacity:    0.9;
}

/* Brillo animado que recorre la tarjeta al aparecer (shine) */
.achievement-toast::after {
  content:    "";
  position:   absolute;
  top:        0;
  left:       -60%;
  width:      55%;
  height:     100%;
  background: linear-gradient(
    100deg,
    transparent,
    color-mix(in srgb, var(--ach-color) 28%, transparent),
    transparent
  );
  transform:  skewX(-18deg);
  pointer-events: none;
}

/* ── Icono ── */
.achievement-icon {
  width:            64px;
  height:           64px;
  border-radius:    10px;
  display:          grid;
  place-items:      center;
  font-size:        2rem;
  line-height:      1;
  background:       radial-gradient(circle at 30% 25%, color-mix(in srgb, var(--ach-color) 30%, transparent), rgba(0, 0, 0, 0.35));
  border:           1px solid color-mix(in srgb, var(--ach-color) 45%, transparent);
  box-shadow:       0 0 14px -4px var(--ach-color);
  overflow:         hidden;
  flex-shrink:      0;
}

.achievement-icon img {
  width:      100%;
  height:     100%;
  object-fit: cover;
}

/* ── Texto ── */
.achievement-body { min-width: 0; }

.achievement-eyebrow {
  font-family:    "Orbitron", monospace;
  font-size:      0.6rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color:          var(--ach-color);
  margin:         0 0 0.15rem;
  display:        flex;
  align-items:    center;
  gap:            0.35rem;
}

.achievement-rarity {
  margin-left:    auto;
  opacity:        0.8;
  font-size:      0.55rem;
}

.achievement-title {
  font-family:    "Nunito", sans-serif;
  font-weight:    800;
  font-size:      0.98rem;
  line-height:    1.15;
  margin:         0 0 0.15rem;
  color:          #fff;
  white-space:    nowrap;
  overflow:       hidden;
  text-overflow:  ellipsis;
}

.achievement-desc {
  font-size:   0.78rem;
  line-height: 1.25;
  margin:      0;
  color:       #cbbce6;
  display:     -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow:    hidden;
}

/* ================================================================
   ANIMACIONES (Keyframes)
   ================================================================ */

/* Entrada: desliza hacia arriba desde fuera de la pantalla */
@keyframes ach-slide-up {
  0%   { opacity: 0; transform: translateY(140%) scale(0.96); }
  70%  { opacity: 1; transform: translateY(-6%)  scale(1.02); }
  100% { opacity: 1; transform: translateY(0)    scale(1);    }
}

/* Salida: desliza hacia abajo + desvanecimiento */
@keyframes ach-slide-down {
  0%   { opacity: 1; transform: translateY(0)    scale(1);    }
  100% { opacity: 0; transform: translateY(140%) scale(0.96); }
}

/* Recorrido del brillo (shine) */
@keyframes ach-shine {
  0%   { left: -60%; }
  100% { left: 130%; }
}

/* Estado: entrando */
.achievement-toast.is-in {
  animation: ach-slide-up 0.6s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}
.achievement-toast.is-in::after {
  animation: ach-shine 0.9s ease-out 0.25s 1;
}

/* Estado: saliendo */
.achievement-toast.is-out {
  animation: ach-slide-down 0.5s cubic-bezier(0.55, 0, 1, 0.45) forwards;
}

/* ================================================================
   PANEL DE PRUEBAS (solo visible con ?logros-test en la URL)
   ================================================================ */
#achievement-test-panel {
  position:       fixed;
  left:           1rem;
  bottom:         1rem;
  z-index:        100000;
  display:        flex;
  flex-direction: column;
  gap:            0.4rem;
  padding:        0.7rem;
  border-radius:  12px;
  background:     rgba(8, 5, 14, 0.92);
  border:         1px solid rgba(255, 255, 255, 0.14);
  font-family:    "Nunito", sans-serif;
  backdrop-filter: blur(6px);
  max-width:      230px;
}

#achievement-test-panel h4 {
  margin:         0 0 0.2rem;
  font-family:    "Orbitron", monospace;
  font-size:      0.7rem;
  letter-spacing: 0.1em;
  color:          #8deeff;
}

#achievement-test-panel button {
  font-family:  "Nunito", sans-serif;
  font-size:    0.72rem;
  text-align:   left;
  padding:      0.4rem 0.55rem;
  border-radius: 8px;
  border:       1px solid rgba(255, 255, 255, 0.16);
  background:   rgba(255, 255, 255, 0.05);
  color:        #f3ecff;
  cursor:       pointer;
  transition:   background 0.15s ease, border-color 0.15s ease;
}
#achievement-test-panel button:hover {
  background:    rgba(141, 238, 255, 0.14);
  border-color:  rgba(141, 238, 255, 0.4);
}
#achievement-test-panel button.ach-reset { border-color: rgba(229, 89, 177, 0.4); }

/* ================================================================
   ACCESIBILIDAD: respeta "prefers-reduced-motion"
   ================================================================ */
@media (prefers-reduced-motion: reduce) {
  .achievement-toast.is-in  { animation: none; opacity: 1; transform: translateY(0); }
  .achievement-toast.is-in::after { animation: none; }
  .achievement-toast.is-out { animation: none; opacity: 0; }
}

/* ── Fallback navegadores sin color-mix(): el borde sigue visible ── */
@supports not (background: color-mix(in srgb, red 50%, blue)) {
  .achievement-toast { box-shadow: 0 0 18px -2px var(--ach-color), 0 12px 28px -10px rgba(0,0,0,0.8); }
  .achievement-icon  { background: rgba(0,0,0,0.35); }
}