/* ============================================================
   Preview & Standalone Viewport Styling
   Separated runtime framing for page preview & preview dialog.
   ============================================================ */
.pb-preview-dialog {
  background: var(--app-surface);
  border: 1px solid var(--app-border);
  border-radius: 0;
  max-width: 100%;
  max-height: 100%;
  box-shadow: 0 12px 48px rgba(0, 0, 0, 0.25);
}
.pb-preview-dialog-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: var(--app-z-preview, 1400);
}
.pb-preview-dialog-header {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(248, 250, 252, 0.92));
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--app-toolbar-border, var(--app-border));
  color: var(--app-toolbar-text, var(--app-text));
  flex-shrink: 0;
}
[data-theme=dark] .pb-preview-dialog-header:not(.pb-canvas-viewport *):not(.pb-canvas-viewport), [data-page-theme=dark] .pb-preview-dialog-header {
  background: linear-gradient(180deg, rgba(30, 41, 59, 0.94), rgba(15, 23, 42, 0.92));
  border-bottom-color: rgba(255, 255, 255, 0.08);
}
.pb-preview-dialog-title {
  margin: 0;
  font-weight: 600;
  font-size: 14.4px;
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.pb-preview-dialog-body {
  flex: 1;
  background: radial-gradient(circle at top, rgba(var(--app-primary-rgb, 13, 110, 253), 0.08), transparent 22%), linear-gradient(180deg, rgba(148, 163, 184, 0.1), transparent 180px), var(--app-canvas-bg);
}
[data-theme=dark] .pb-preview-dialog-body:not(.pb-canvas-viewport *):not(.pb-canvas-viewport), [data-page-theme=dark] .pb-preview-dialog-body {
  background: radial-gradient(circle at top, rgba(var(--app-primary-rgb, 13, 110, 253), 0.12), transparent 22%), linear-gradient(180deg, rgba(15, 23, 42, 0.56), transparent 180px), var(--app-canvas-bg);
}
.pb-preview-dialog-viewport {
  position: relative;
  background: var(--app-surface);
  border-radius: var(--app-radius-xl, 24px);
  border: 1px solid rgba(148, 163, 184, 0.22);
  box-shadow: 0 28px 60px rgba(15, 23, 42, 0.14);
  width: auto;
  min-width: min(100%, 320px);
  min-height: 100%;
  transition: width 0.3s ease;
  overflow-y: auto;
  overflow-x: clip;
  padding: 0;
}
.pb-preview-title {
  font-weight: 600;
  font-size: 15.2px;
}
.pb-preview-container {
  flex: 1;
  background: radial-gradient(circle at top, rgba(var(--app-primary-rgb, 13, 110, 253), 0.08), transparent 22%), linear-gradient(180deg, rgba(148, 163, 184, 0.1), transparent 180px), var(--app-canvas-bg);
  min-height: calc(100vh - 50px);
}
[data-theme=dark] .pb-preview-container:not(.pb-canvas-viewport *):not(.pb-canvas-viewport), [data-page-theme=dark] .pb-preview-container {
  background: radial-gradient(circle at top, rgba(var(--app-primary-rgb, 13, 110, 253), 0.12), transparent 22%), linear-gradient(180deg, rgba(15, 23, 42, 0.56), transparent 180px), var(--app-canvas-bg);
}
.pb-preview-toolbar {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(248, 250, 252, 0.92));
  backdrop-filter: blur(12px);
  border-bottom-color: var(--app-border);
}
[data-theme=dark] .pb-preview-toolbar:not(.pb-canvas-viewport *):not(.pb-canvas-viewport), [data-page-theme=dark] .pb-preview-toolbar {
  background: linear-gradient(180deg, rgba(30, 41, 59, 0.94), rgba(15, 23, 42, 0.92));
  border-bottom-color: rgba(255, 255, 255, 0.08);
}
.pb-preview-viewport {
  border: 1px solid rgba(148, 163, 184, 0.22);
  box-shadow: 0 28px 60px rgba(15, 23, 42, 0.14);
  border-radius: var(--app-radius-xl, 24px);
  overflow-x: clip;
}
@media (max-width: 767.98px) {
  .pb-preview-viewport {
    border-radius: 0;
  }
}
.pb-preview-empty {
  color: var(--app-text-secondary);
  gap: 12px;
}