/* ================================================
   DALE - MOTOR DE MOVIMIENTO (motion)
   Reveal al scroll · Skeletons · Micro-feedback
   Todo opt-in desde JS: sin JS, nada se oculta.
   ================================================ */

/* ---------- 1. REVEAL AL SCROLL ---------- */
/* La clase .reveal la agrega el JS. Sin JS no se aplica => contenido siempre visible. */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .6s cubic-bezier(.2,.8,.2,1), transform .6s cubic-bezier(.2,.8,.2,1);
  will-change: opacity, transform;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
/* Escalonado para grupos (cuando el JS marca data-stagger) */
.reveal[data-i="1"] { transition-delay: .05s; }
.reveal[data-i="2"] { transition-delay: .10s; }
.reveal[data-i="3"] { transition-delay: .15s; }
.reveal[data-i="4"] { transition-delay: .20s; }
.reveal[data-i="5"] { transition-delay: .25s; }
.reveal[data-i="6"] { transition-delay: .30s; }

/* ---------- 2. SKELETONS / SHIMMER ---------- */
@keyframes daleShimmer {
  0%   { background-position: -400px 0; }
  100% { background-position: 400px 0; }
}
.dale-skeleton {
  background: var(--gris-100);
  background-image: linear-gradient(
    90deg,
    rgba(255,255,255,0) 0,
    rgba(255,255,255,0.6) 50%,
    rgba(255,255,255,0) 100%
  );
  background-size: 400px 100%;
  background-repeat: no-repeat;
  animation: daleShimmer 1.3s infinite linear;
  border-radius: var(--r-md);
}

/* Shimmer detrás de las fotos mientras cargan.
   El JS pone .foto-cargando en el contenedor y lo saca al cargar la img. */
.foto-cargando {
  position: relative;
  background: var(--gris-100);
  overflow: hidden;
}
.foto-cargando::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(
    90deg,
    rgba(255,255,255,0) 0,
    rgba(255,255,255,0.55) 50%,
    rgba(255,255,255,0) 100%
  );
  background-size: 400px 100%;
  background-repeat: no-repeat;
  animation: daleShimmer 1.3s infinite linear;
  z-index: 1;
}
.foto-cargando img {
  opacity: 0;
  transition: opacity .4s ease;
}
.foto-lista img {
  opacity: 1;
}
.foto-lista::after { display: none; }

/* ---------- 3. RIPPLE (onda al click en botones) ---------- */
.dale-ripple-host {
  position: relative;
  overflow: hidden;
}
.dale-ripple {
  position: absolute;
  border-radius: 50%;
  transform: scale(0);
  background: rgba(255,255,255,0.45);
  pointer-events: none;
  animation: daleRipple .55s cubic-bezier(.2,.8,.2,1);
}
@keyframes daleRipple {
  to { transform: scale(2.4); opacity: 0; }
}

/* ---------- 4. FEEDBACK DE SUBMIT (spinner en botón) ---------- */
.btn-cargando {
  position: relative;
  color: transparent !important;
  pointer-events: none;
}
.btn-cargando::after {
  content: "";
  position: absolute;
  top: 50%; left: 50%;
  width: 18px; height: 18px;
  margin: -9px 0 0 -9px;
  border: 2px solid rgba(255,255,255,0.45);
  border-top-color: #fff;
  border-radius: 50%;
  animation: daleSpin .6s linear infinite;
}
@keyframes daleSpin { to { transform: rotate(360deg); } }

/* ---------- 5. TOAST de confirmación (copiar, guardado) ---------- */
.dale-toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%) translateY(20px);
  background: var(--gris-900);
  color: #fff;
  padding: 12px 20px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  box-shadow: 0 10px 30px rgba(0,0,0,0.25);
  opacity: 0;
  transition: opacity .25s ease, transform .25s cubic-bezier(.2,.8,.2,1);
  z-index: 9000;
  pointer-events: none;
  display: flex;
  align-items: center;
  gap: 8px;
}
.dale-toast.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ---------- RESPETAR "REDUCIR MOVIMIENTO" ---------- */
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1 !important; transform: none !important; transition: none; }
  .dale-skeleton, .foto-cargando::after { animation: none; }
  .dale-ripple { display: none; }
  .btn-cargando::after { animation-duration: 1.4s; }
  .dale-toast { transition: opacity .2s; }
}