/* === App loading — estado inicial (dados do servidor) === */

.app-loading {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: min(52vh, 480px);
  padding: var(--space-2xl) var(--space-xl);
  animation: loadingEnter var(--duration-slow) var(--ease-out);
}

.app-loading[hidden] {
  display: none !important;
}

.app-loading__panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
  max-width: 360px;
  width: 100%;
  padding: var(--space-2xl) var(--space-xl);
  text-align: center;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.03) inset,
    0 20px 50px rgba(0, 0, 0, 0.4);
}

.app-loading__spinner-wrap {
  position: relative;
  width: 56px;
  height: 56px;
}

.app-loading__spinner-glow {
  position: absolute;
  inset: -10px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.28) 0%, transparent 68%);
  animation: loadingGlow 2s var(--ease-soft) infinite;
  pointer-events: none;
}

.app-loading__spinner {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: 3px solid rgba(59, 130, 246, 0.12);
  border-top-color: var(--blue-500);
  border-right-color: var(--blue-400);
  animation: loadingSpin 0.85s linear infinite;
}

.app-loading__title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
  line-height: var(--line-height-tight);
}

.app-loading__sub {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  margin: 0;
  line-height: var(--line-height-relaxed);
}

.app-loading__dots {
  display: inline-flex;
  gap: 3px;
  margin-left: 2px;
  vertical-align: baseline;
}

.app-loading__dots span {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--blue-400);
  animation: loadingDot 1.2s var(--ease-soft) infinite;
}

.app-loading__dots span:nth-child(2) {
  animation-delay: 0.15s;
}

.app-loading__dots span:nth-child(3) {
  animation-delay: 0.3s;
}

.main--hidden {
  display: none !important;
}

@keyframes loadingEnter {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes loadingSpin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes loadingGlow {
  0%,
  100% {
    opacity: 0.45;
    transform: scale(0.92);
  }
  50% {
    opacity: 1;
    transform: scale(1.08);
  }
}

@keyframes loadingDot {
  0%,
  80%,
  100% {
    opacity: 0.25;
    transform: translateY(0);
  }
  40% {
    opacity: 1;
    transform: translateY(-3px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .app-loading {
    animation: none;
  }

  .app-loading__spinner {
    animation-duration: 1.4s;
  }

  .app-loading__spinner-glow,
  .app-loading__dots span {
    animation: none;
    opacity: 0.7;
  }
}