.nx-preview-head{display:flex!important;align-items:center!important;justify-content:space-between;gap:10px;padding:10px 12px;min-width:0;border-bottom:1px solid var(--line,#c7ddd5);background:var(--panel,#f2f9f6);color:var(--text,#245a50);}
.nx-preview-head .nx-preview-title{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:14px;}
.nx-preview-head .nx-preview-actions{display:flex;align-items:center;justify-content:flex-end;flex-wrap:wrap;gap:6px;max-width:75%;}
.nx-preview-head .nx-preview-actions>button,.nx-preview-head .nx-preview-actions>a{box-sizing:border-box;display:inline-flex;align-items:center;justify-content:center;white-space:nowrap;min-height:32px;margin:0;padding:5px 10px;border:1px solid var(--line,#bad4cb);border-radius:6px;background:var(--panel,#fff);color:var(--text,#245a50);font:13px/1.25 system-ui,sans-serif;text-decoration:none;cursor:pointer;}
.nx-preview-head .nx-preview-actions>[hidden]{display:none!important;}
.nx-preview-head .nx-preview-actions>:disabled{opacity:.5;cursor:wait;}
dialog.nexora-file-preview{box-sizing:border-box;width:min(1000px,96vw);height:90dvh;max-width:none;max-height:none;padding:0;border:1px solid var(--line,#a8c9c0);border-radius:10px;background:var(--panel,#f5fbf9);color:var(--text,#245a50);overflow:hidden;}
dialog.nexora-file-preview[open]{display:flex;flex-direction:column;}
dialog.nexora-file-preview::backdrop{background:#071a2255;}
.nexora-file-preview>.nx-preview-head{flex-shrink:0;}
.nx-preview-content{flex:1;min-height:0;overflow:auto;overflow-wrap:anywhere;padding:12px;}
/* The canvas fits the remaining dialog area, not a second viewport height. */
.nexora-file-preview.is-image>.nx-preview-content{display:flex;flex-direction:column;overflow:hidden;}
.nexora-file-preview.is-image .nx-preview-content>.nexora-media-stage{flex:1;height:auto;min-height:0;width:100%;}
.nx-preview-content iframe{height:100%!important;min-height:240px;}
.nx-preview-notice{margin:0;padding:6px 12px;font:13px system-ui,sans-serif;}
@media(max-width:600px){.nx-preview-head{flex-wrap:wrap;}.nx-preview-head .nx-preview-title{flex-basis:100%;}.nx-preview-head .nx-preview-actions{max-width:100%;justify-content:flex-start;}.nx-preview-content{padding:8px;}}
.nexora-media-stage {
  position:relative;
  width:100%;
  height:min(72vh,680px);
  min-height:260px;
  overflow:hidden;
  border-radius:inherit;
  background:transparent;
  touch-action:none;
  cursor:grab;
  user-select:none;
  overscroll-behavior:contain;
  isolation:isolate;
}
.nexora-media-stage.is-dragging { cursor:grabbing; }
.nexora-media-stage canvas {
  position:absolute;
  inset:0;
  display:block;
  width:100%;
  height:100%;
  outline:1px solid transparent;
}
@media(max-width:680px) {
  .nexora-media-stage { height:calc(100dvh - 150px); min-height:320px; }
}