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0;text-align:center}.welcome-loading-container{margin-top:20px}.welcome-loading-bar{width:100%;height:4px;background:#e9ecef;border-radius:2px;overflow:hidden;margin-bottom:8px}.welcome-loading-fill{height:100%;background:#000;width:0%;transition:width .3s ease;border-radius:2px}.welcome-loading-text{font-size:12px;color:#6b7280;margin:0}@media (max-width:768px){.about-modal-content{max-width:90%;max-height:95vh;padding:20px;overflow-y:auto}.about-logo{max-width:220px}.about-app-name{font-size:18px}.about-description{font-size:13px}.about-definition{font-size:11px;padding:10px;margin:0 0 16px 0}.about-creator{font-size:13px;margin:0 0 6px 0}.about-email{font-size:11px;margin:0 0 16px 0}.about-links{gap:6px;margin-bottom:16px}.about-link{font-size:13px;padding:5px 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rgba(0,0,0,.04)}.export-progress-modal-header{display:flex;align-items:center;justify-content:space-between;padding:1.5rem 1.5rem .5rem 1.5rem;border-bottom:1px solid #e5e7eb}.export-progress-modal-title{font-size:1.25rem;font-weight:600;color:#111827;margin:0}.export-progress-modal-body{padding:1.5rem}.export-progress-container{text-align:center}.export-progress-bar{width:100%;height:8px;background:#e5e7eb;border-radius:4px;overflow:hidden;margin-bottom:1rem}.export-progress-fill{height:100%;background:#000;border-radius:4px;width:0%;transition:width .3s ease}.export-progress-text{color:#374151;font-size:.875rem;font-weight:500}@media (max-width:768px){.export-progress-modal-content{max-width:90%;margin:0 1rem}.export-progress-modal-header{padding:1rem 1rem .5rem 1rem}.export-progress-modal-title{font-size:1.125rem}.export-progress-modal-body{padding:1rem}.export-progress-text{font-size:.8rem}}.control-point-end,.control-point-start{cursor:grab;transition:all .2s 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