/* Shared waiting screen for legacy links and the /play launcher. */
.apprendeu-loader {
  box-sizing: border-box;
  position: relative;
  display: grid;
  place-items: center;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(1.25rem, 5vw, 3rem);
  background: radial-gradient(ellipse at 50% 38%, var(--brand-wash-end), transparent 72%), var(--brand-wash);
  color: var(--ui-text);
  font-family: var(--font-body);
  text-align: center;
}

.apprendeu-loader::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--brand-rule) 1px, transparent 1px),
    linear-gradient(90deg, var(--brand-rule) 1px, transparent 1px);
  background-size: 5.5rem 5.5rem;
  mask-image: radial-gradient(ellipse at 50% 38%, #000, transparent 70%);
}

.loader-shell {
  min-height: 100vh;
  min-height: 100svh;
}

.apprendeu-loader__stage {
  display: grid;
  justify-items: center;
  width: min(100%, 28rem);
}

.apprendeu-loader__brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .15em;
  margin-bottom: 2rem;
  color: var(--ui-text);
  font-family: var(--font-title);
  font-size: clamp(2rem, 7vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -.075em;
  line-height: 1.2;
  animation: apprendeu-loader-float 2.8s ease-in-out infinite;
}

.apprendeu-loader__brand img {
  display: block;
  width: .95em;
  height: .95em;
  object-fit: contain;
}

.apprendeu-loader__app {
  color: var(--ui-accent);
}

.apprendeu-loader__dots {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .55rem;
  height: 1rem;
  margin-bottom: 1.25rem;
}

.apprendeu-loader__dots span {
  display: block;
  width: .45rem;
  height: .45rem;
  border-radius: 50%;
  background: var(--ui-accent);
  animation: apprendeu-loader-dot 1.2s ease-in-out infinite;
}

.apprendeu-loader__dots span:nth-child(2) { animation-delay: .16s; }
.apprendeu-loader__dots span:nth-child(3) { animation-delay: .32s; }

.apprendeu-loader__status {
  width: 100%;
  min-height: 1.5em;
  margin: 0;
  color: var(--ui-muted);
  font-family: var(--font-body);
  font-size: clamp(.95rem, 2.5vw, 1.1rem);
  font-weight: 600;
  letter-spacing: 0;
  line-height: 1.5;
  text-wrap: balance;
}

@keyframes apprendeu-loader-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

@keyframes apprendeu-loader-dot {
  0%, 60%, 100% { transform: translateY(0); opacity: .4; }
  30% { transform: translateY(-4px); opacity: 1; }
}

.is-loader-error .apprendeu-loader__brand,
.is-loader-error .apprendeu-loader__dots span {
  animation: none;
}

.is-loader-error .apprendeu-loader__dots { visibility: hidden; }

@media (prefers-reduced-motion: reduce) {
  .apprendeu-loader__brand,
  .apprendeu-loader__dots span { animation: none; }
}