/* A modeless document window. No backdrop, inert page, or scroll lock. */
#file-preview-dialog{position:fixed;inset:auto;margin:0;padding:0;min-width:0;min-height:0;max-width:100vw;max-height:100dvh;box-sizing:border-box;z-index:1000;border:1px solid #8b9cac;box-shadow:0 12px 48px #142c4d55;border-radius:8px;overflow:hidden;background:#fff}
#file-preview-dialog:not([open]){display:none}
#file-preview-dialog[open]{display:flex;flex-direction:column}
#file-preview-header{display:flex;align-items:center;flex-wrap:wrap;gap:6px;flex:none;min-height:42px;padding:8px 12px;background:var(--bc-ivory,#f6f7f8);cursor:move;touch-action:none;user-select:none}
#file-preview-header h2{flex:1 1 120px;font-size:13px;min-width:0;margin:0;max-height:38px;overflow:hidden;overflow-wrap:anywhere}
#file-preview-header .screen-id{font-size:10px}
#file-preview-header button,#file-preview-header a{flex:none;cursor:pointer;font-size:12px;padding:5px 7px;min-height:28px}
#file-preview-header #file-preview-download{width:28px;height:28px;font-size:18px}
#file-preview-header:focus-visible,.preview-resize:focus-visible{outline:2px solid #267bb9;outline-offset:-3px}
#file-preview-frame{flex:1 1 auto;display:block;width:100%;min-height:0;border:0;background:#fff}
#file-preview-dialog.is-positioning #file-preview-frame{pointer-events:none}
.preview-resize{position:absolute;z-index:3;touch-action:none;user-select:none}
.preview-resize-n,.preview-resize-s{left:10px;right:10px;height:6px;cursor:ns-resize}.preview-resize-n{top:0}.preview-resize-s{bottom:0}
.preview-resize-e,.preview-resize-w{top:10px;bottom:10px;width:6px;cursor:ew-resize}.preview-resize-e{right:0}.preview-resize-w{left:0}
.preview-resize-ne,.preview-resize-nw,.preview-resize-se,.preview-resize-sw{height:12px;width:12px}
.preview-resize-ne{top:0;right:0;cursor:nesw-resize}.preview-resize-nw{top:0;left:0;cursor:nwse-resize}
.preview-resize-se{bottom:0;right:0;cursor:nwse-resize;background:linear-gradient(135deg,transparent 40%,#8b9cac 42%,#8b9cac 48%,transparent 50%,transparent 65%,#8b9cac 67%,#8b9cac 73%,transparent 75%)}
.preview-resize-sw{bottom:0;left:0;cursor:nesw-resize}
@media print{#file-preview-dialog{display:none!important}}