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1.1rem;background:var(--paper-2);border:1px solid var(--paper-3);border-radius:var(--r-lg)}.url-tips-title{font-size:.7rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);margin-bottom:.75rem}.url-tips-list{list-style:none;display:flex;flex-direction:column;gap:.45rem}.url-tips-list li{display:flex;gap:9px;align-items:center;font-size:.82rem;color:var(--ink-2);line-height:1.45}.url-tips-list li svg{width:14px;height:14px;color:var(--forest);flex-shrink:0}.editor-footer{padding:.4rem 1rem;border-top:1px solid 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strong{color:var(--blue);font-weight:500}.upload-pill{display:none;width:100%;align-items:center;gap:10px;padding:.75rem 1rem;background:var(--blue-pale);border:1px solid var(--paper-3);border-radius:var(--r);margin-top:.75rem}.upload-pill.active{display:flex}.upload-pill-icon{width:32px;height:32px;border-radius:var(--r);background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:center;font-size:.65rem;font-weight:700;flex-shrink:0}.upload-pill-info{flex:1;min-width:0}.upload-pill-name{font-size:.85rem;font-weight:500;color:var(--heading);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.upload-pill-meta{font-size:.72rem;color:var(--ink-3)}.upload-pill-clear{background:0 0;border:none;color:var(--ink-3);cursor:pointer;padding:4px;border-radius:var(--r);transition:all .15s}.upload-pill-clear:hover{color:var(--rose);background:var(--rose-pale)}.preview-inner{width:100%;height:100%;min-height:520px;display:flex;flex-direction:column;align-items:stretch;justify-content:stretch;padding:0;background:var(--paper-2);position:relative;overflow:hidden}#viewer-container{width:100%;height:100%;flex:1;min-height:520px;background:var(--paper);display:none}#viewer-container.active{display:block}.preview-placeholder{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1rem;color:var(--ink-3);padding:2rem;background:var(--paper-2);z-index:2}.preview-placeholder.hidden{display:none}.preview-placeholder svg{width:48px;height:48px;opacity:.4}.preview-placeholder p{font-size:.88rem;text-align:center;line-height:1.6;max-width:240px}.preview-placeholder p strong{font-weight:600;color:var(--ink-2)}.preview-foot-hint{font-size:.72rem;color:var(--ink-3);display:flex;align-items:center;gap:6px;min-height:18px}.preview-foot-hint.warn{color:var(--amber)}.preview-foot-hint svg{width:12px;height:12px;flex-shrink:0}.preview-footer{padding:.5rem 1rem;border-top:1px solid var(--paper-3);background:var(--paper-2);display:flex;align-items:center;justify-content:space-between;flex-shrink:0;gap:8px}.preview-status{font-size:.72rem;color:var(--ink-3);display:flex;align-items:center;gap:6px}.preview-status .dot{width:6px;height:6px;border-radius:50%;background:var(--ink-4);flex-shrink:0}.preview-status .dot.loading{background:var(--amber);animation:pulse .8s infinite}.preview-status .dot.ready{background:var(--forest)}.preview-status .dot.stale{background:var(--amber)}.preview-status .dot.error{background:var(--rose)}@keyframes 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1fr;gap:2.5rem}.info-strip-grid{grid-template-columns:1fr}.workspace-foot{display:flex}}@media(max-width:600px){.footer-grid{grid-template-columns:1fr}.toolbar{flex-direction:column;align-items:stretch}.toolbar-left,.toolbar-right{justify-content:flex-start}}