/* Full-screen startup state: keep database-driven UI hidden until the signed-in
   account, students, lessons and dashboard data have settled. */
body.sonare-app-loading {
  overflow: hidden;
}

body.sonare-app-loading > :not(#sonareAppLoader) {
  visibility: hidden !important;
}

.sonare-app-loader {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: grid;
  place-items: center;
  padding: 1.5rem;
  background:
    radial-gradient(circle at 50% 38%, rgba(180, 154, 232, 0.18), transparent 30%),
    var(--brand-gradient-page, linear-gradient(180deg, #faf8fd, #f5f1fa));
  opacity: 1;
  transition: opacity 0.28s ease;
}

.sonare-app-loader.is-leaving {
  opacity: 0;
  pointer-events: none;
}

.sonare-app-loader-card {
  display: grid;
  justify-items: center;
  gap: 0.9rem;
  min-width: min(280px, 78vw);
  padding: 1.65rem 1.8rem;
  border: 1px solid var(--border, #e4deeb);
  border-radius: 22px;
  background: color-mix(in srgb, var(--surface, #fff) 92%, transparent);
  box-shadow: 0 22px 60px rgba(52, 41, 68, 0.12);
  backdrop-filter: blur(14px);
}

.sonare-app-loader-logo {
  width: 58px;
  height: 58px;
  overflow: visible;
}

.sonare-app-loader-logo .loader-bar {
  transform-box: fill-box;
  transform-origin: center;
  animation: sonareLoaderLift 1.15s cubic-bezier(.4,0,.2,1) infinite;
}

.sonare-app-loader-logo .loader-bar--middle {
  animation-delay: 0.12s;
}

.sonare-app-loader-logo .loader-bar--right {
  animation-delay: 0.24s;
}

.sonare-app-loader-copy {
  display: grid;
  justify-items: center;
  gap: 0.2rem;
  text-align: center;
}

.sonare-app-loader-copy strong {
  color: var(--text, #241f2b);
  font-size: 1rem;
}

.sonare-app-loader-copy span {
  color: var(--muted, #756f7d);
  font-size: 0.82rem;
}

.sonare-app-loader-dots {
  display: flex;
  gap: 0.32rem;
  margin-top: 0.15rem;
}

.sonare-app-loader-dots i {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--brand-lilac, #b49ae8);
  animation: sonareLoaderDot 1s ease-in-out infinite;
}

.sonare-app-loader-dots i:nth-child(2) { animation-delay: 0.13s; }
.sonare-app-loader-dots i:nth-child(3) { animation-delay: 0.26s; }

@keyframes sonareLoaderLift {
  0%, 60%, 100% { transform: translateY(0); }
  30% { transform: translateY(-7px); }
}

@keyframes sonareLoaderDot {
  0%, 60%, 100% { opacity: 0.35; transform: translateY(0); }
  30% { opacity: 1; transform: translateY(-3px); }
}

html[data-theme="dark"] .sonare-app-loader {
  background:
    radial-gradient(circle at 50% 38%, rgba(180, 154, 232, 0.14), transparent 30%),
    var(--brand-gradient-page, linear-gradient(180deg, #17131e, #101318));
}

html[data-theme="dark"] .sonare-app-loader-card {
  background: color-mix(in srgb, var(--surface, #1e222a) 94%, transparent);
  border-color: var(--border-strong, #3b4049);
  box-shadow: 0 22px 60px rgba(0, 0, 0, 0.3);
}

@media (prefers-reduced-motion: reduce) {
  .sonare-app-loader-logo .loader-bar,
  .sonare-app-loader-dots i {
    animation: none;
  }

  .sonare-app-loader {
    transition: none;
  }
}