.openspecy-app-shell {
  margin: 1.5rem 0 2rem;
  overflow: hidden;
  border: 1px solid var(--bs-border-color, #d7dde3);
  border-radius: 6px;
  background: #fff;
  box-shadow: 0 4px 18px rgba(24, 33, 43, 0.08);
}

.openspecy-app-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 58px;
  padding: 0.65rem 0.85rem;
  border-bottom: 1px solid var(--bs-border-color, #d7dde3);
  background: #f7f9fb;
}

.openspecy-app-heading {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  min-width: 0;
}

.openspecy-app-heading p,
.openspecy-app-actions p,
.openspecy-app-progress p {
  margin: 0;
}

.openspecy-app-heading p,
.openspecy-app-actions p {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.openspecy-app-heading strong {
  color: #17212b;
  font-size: 1rem;
  white-space: nowrap;
}

#openspecy-app-status {
  color: #56616c;
  font-size: 0.875rem;
}

.openspecy-app-actions {
  display: flex;
  flex: 0 0 auto;
  gap: 0.5rem;
}

.openspecy-app-viewport {
  position: relative;
  height: min(74vh, 760px);
  min-height: 520px;
  background: #fff;
}

#openspecy-app-frame {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
  background: #fff;
}

.openspecy-app-loading {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: grid;
  place-items: center;
  padding: 2rem;
  background: #fff;
  opacity: 1;
  visibility: visible;
  transition: opacity 180ms ease, visibility 180ms ease;
}

.openspecy-app-loading-content {
  width: min(100%, 32rem);
  color: #56616c;
  text-align: center;
}

.openspecy-app-loading-title {
  margin-bottom: 0.75rem;
  color: #17212b;
  font-size: 1.125rem;
  font-weight: 600;
}

.openspecy-app-progress {
  position: relative;
  height: 8px;
  margin: 0 auto 1rem;
  overflow: hidden;
  border-radius: 4px;
  background: #dce2e7;
}

.openspecy-app-progress span {
  position: absolute;
  inset: 0 auto 0 0;
  width: 38%;
  border-radius: inherit;
  background: #087f8c;
  animation: openspecy-app-progress 1.35s ease-in-out infinite;
}

.openspecy-app-shell.is-ready .openspecy-app-loading {
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
}

html.openspecy-app-fullscreen-open,
html.openspecy-app-fullscreen-open body {
  overflow: hidden;
}

.openspecy-app-shell.is-fullscreen {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  width: auto;
  height: auto;
  margin: 0;
  border: 0;
  border-radius: 0;
  flex-direction: column;
}

.openspecy-app-shell.is-fullscreen .openspecy-app-viewport {
  height: auto;
  min-height: 0;
  flex: 1 1 auto;
}

@keyframes openspecy-app-progress {
  0% { transform: translateX(-105%); }
  55% { transform: translateX(165%); }
  100% { transform: translateX(270%); }
}

@media (max-width: 575.98px) {
  .openspecy-app-toolbar,
  .openspecy-app-heading {
    align-items: stretch;
    flex-direction: column;
  }

  .openspecy-app-toolbar,
  .openspecy-app-heading {
    gap: 0.5rem;
  }

  .openspecy-app-actions p > * {
    flex: 1 1 0;
  }

  .openspecy-app-actions p {
    width: 100%;
  }

  .openspecy-app-viewport {
    height: 70vh;
    min-height: 430px;
  }
}

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

  .openspecy-app-progress span {
    width: 100%;
    animation: none;
  }
}