.config-workspace { display: grid; grid-template-columns: minmax(0, 1fr) minmax(320px, .85fr); gap: 22px; align-items: start; }
.config-workspace .config-grid { grid-template-columns: 1fr; }
.config-workspace .field { min-width: 0; }
.live-preview-panel { position: sticky; top: 86px; padding: 18px; border: 1px solid var(--border); border-radius: 18px; background: var(--surface); }
.preview-heading { display: flex; justify-content: space-between; align-items: start; gap: 12px; }
.preview-heading h2 { font-size: 20px; }
.preview-heading p { margin: 5px 0 0; color: var(--muted); font-size: 12px; }
.preview-heading .btn { min-height: 34px; padding-inline: 10px; font-size: 12px; white-space: nowrap; }
.preview-controls { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-block: 18px 12px; }
.preview-controls > div { display: flex; padding: 3px; background: var(--bg); border-radius: 9px; }
.preview-controls button { min-height: 32px; min-width: 48px; padding: 4px 10px; border: 0; border-radius: 7px; background: transparent; color: var(--muted); }
.preview-controls button[aria-pressed="true"] { background: var(--surface); color: var(--accent-strong); box-shadow: 0 1px 4px #20242b14; }
.preview-controls select { width: auto; min-height: 38px; padding: 6px 9px; font-size: 12px; }
.preview-stage { position: relative; overflow: hidden; width: 100%; height: 560px; border: 1px solid var(--border); border-radius: 12px; background: var(--bg); }
.preview-stage iframe { position: absolute; top: 0; left: 0; border: 0; background: var(--surface); transform-origin: top left; }
.preview-note { margin: 12px 0 0; color: var(--muted); font-size: 12px; }
.live-preview-panel.is-expanded { position: fixed; z-index: 80; inset: 18px; width: min(1400px, calc(100% - 36px)); margin: auto; overflow: auto; box-shadow: 0 0 0 100vmax #15223499; }
.live-preview-panel.is-expanded .preview-stage { height: calc(100dvh - 195px); min-height: 260px; }
@media (max-width: 1150px) {
  .config-workspace { grid-template-columns: minmax(0, 1fr); }
  .live-preview-panel { position: static; grid-row: 1; }
  .config-workspace .config-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
}
@media (max-width: 680px) {
  .config-workspace .config-grid { grid-template-columns: minmax(0,1fr); }
  .live-preview-panel { padding: 12px; }
  .preview-stage { height: 480px; }
}