:root{--font-sans:"Inter", system-ui, -apple-system, sans-serif;--font-display:"Montserrat", var(--font-sans);--transition-fast:.15s ease;--transition-normal:.25s cubic-bezier(.4, 0, .2, 1);--transition-slow:.4s cubic-bezier(.4, 0, .2, 1);--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-xl:24px}.theme-dark{--bg-primary:#0a0b10;--bg-secondary:#12141f;--bg-tertiary:#191c2c;--bg-glass:#12141fb3;--border-color:#ffffff14;--border-glow:#06b6d426;--text-primary:#f8fafc;--text-secondary:#94a3b8;--text-muted:#64748b;--color-primary:#06b6d4;--color-primary-hover:#0891b2;--color-primary-light:#06b6d426;--color-accent:#8b5cf6;--color-accent-hover:#7c3aed;--color-success:#10b981;--color-success-bg:#10b9811a;--color-danger:#ef4444;--color-danger-bg:#ef44441a;--shadow-sm:0 1px 3px #00000080;--shadow-md:0 4px 20px #0009;--shadow-lg:0 10px 40px #000c;--scrollbar-thumb:#334155;--scrollbar-track:#0f172a}.theme-light{--bg-primary:#f8fafc;--bg-secondary:#fff;--bg-tertiary:#f1f5f9;--bg-glass:#fffc;--border-color:#00000014;--border-glow:#06b6d41a;--text-primary:#0f172a;--text-secondary:#475569;--text-muted:#94a3b8;--color-primary:#0891b2;--color-primary-hover:#0e7490;--color-primary-light:#06b6d414;--color-accent:#7c3aed;--color-accent-hover:#6d28d9;--color-success:#059669;--color-success-bg:#05966914;--color-danger:#dc2626;--color-danger-bg:#dc262614;--shadow-sm:0 1px 2px #0000000d;--shadow-md:0 4px 15px #0000000d;--shadow-lg:0 10px 30px #0000001a;--scrollbar-thumb:#cbd5e1;--scrollbar-track:#f1f5f9}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg-primary);color:var(--text-primary);transition:background-color var(--transition-normal), color var(--transition-normal);-webkit-font-smoothing:antialiased;overflow-x:hidden}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--scrollbar-track)}::-webkit-scrollbar-thumb{background:var(--scrollbar-thumb);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--color-primary)}.fade-in{animation:fadeIn var(--transition-slow)}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.btn{font-family:var(--font-sans);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);border:1px solid #0000;justify-content:center;align-items:center;gap:8px;padding:10px 18px;font-size:14px;font-weight:500;display:inline-flex}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background-color:var(--color-primary);color:#fff}.btn-primary:hover:not(:disabled){background-color:var(--color-primary-hover);transform:translateY(-1px);box-shadow:0 4px 12px #06b6d459}.btn-accent{background-color:var(--color-accent);color:#fff}.btn-accent:hover:not(:disabled){background-color:var(--color-accent-hover);transform:translateY(-1px);box-shadow:0 4px 12px #8b5cf659}.btn-secondary{background-color:var(--bg-tertiary);border:1px solid var(--border-color);color:var(--text-primary)}.btn-secondary:hover:not(:disabled){background-color:var(--border-color)}.btn-ghost{color:var(--text-secondary);background-color:#0000}.btn-ghost:hover:not(:disabled){background-color:var(--border-color);color:var(--text-primary)}.btn-danger{background-color:var(--color-danger-bg);border:1px solid var(--color-danger);color:var(--color-danger)}.btn-danger:hover:not(:disabled){background:var(--color-danger);color:#fff}.btn-full{width:100%}.modal-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:1000;background-color:#00000080;justify-content:center;align-items:center;animation:.2s ease-out modalFadeIn;display:flex;position:fixed;inset:0}.modal-card{background-color:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-lg);width:480px;max-width:90%;box-shadow:var(--shadow-lg);animation:.25s cubic-bezier(.34,1.56,.64,1) modalScaleIn;overflow:hidden}.modal-header{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;padding:18px 24px;display:flex}.modal-title-area{align-items:center;gap:10px;display:flex}.modal-title-icon{color:var(--color-primary)}.modal-header h3{font-family:var(--font-display);font-size:18px;font-weight:600}.close-btn{color:var(--text-muted);cursor:pointer;width:28px;height:28px;transition:all var(--transition-fast);background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;display:flex}.close-btn:hover{background-color:var(--border-color);color:var(--text-primary)}.modal-body{padding:24px}.modal-description{color:var(--text-secondary);margin-bottom:20px;font-size:13px;line-height:1.5}.modal-footer{border-top:1px solid var(--border-color);background-color:var(--bg-tertiary);justify-content:space-between;align-items:center;padding:16px 24px;display:flex}.footer-right-buttons{gap:10px;display:flex}.form-group{margin-bottom:18px}.form-label{text-transform:uppercase;letter-spacing:.5px;color:var(--text-secondary);justify-content:space-between;margin-bottom:8px;font-size:12px;font-weight:600;display:flex}.form-input{background-color:var(--bg-primary);border:1px solid var(--border-color);border-radius:var(--radius-md);width:100%;color:var(--text-primary);font-family:var(--font-sans);transition:border-color var(--transition-fast), box-shadow var(--transition-fast);padding:10px 14px;font-size:14px}.form-input:focus{border-color:var(--color-primary);outline:none;box-shadow:0 0 0 3px #06b6d433}.help-link{color:var(--color-primary);text-transform:none;font-weight:500;text-decoration:none}.help-link:hover{text-decoration:underline}.spinner-small{border:2px solid var(--border-color);border-top-color:var(--color-primary);border-radius:50%;width:16px;height:16px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}@keyframes modalFadeIn{0%{opacity:0}to{opacity:1}}@keyframes modalScaleIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}.app-container{background-color:var(--bg-primary);min-height:100vh;color:var(--text-primary);flex-direction:column;display:flex}.app-header{background-color:var(--bg-secondary);border-bottom:1px solid var(--border-color);z-index:10;height:64px;box-shadow:var(--shadow-sm);justify-content:space-between;align-items:center;padding:0 24px;display:flex;position:relative}.header-logo{align-items:center;gap:12px;display:flex}.logo-icon-glow{background:linear-gradient(135deg, var(--color-primary), var(--color-accent));border-radius:var(--radius-sm);justify-content:center;align-items:center;width:32px;height:32px;display:flex;box-shadow:0 0 10px #06b6d466}.logo-icon{color:#fff}.logo-text{font-family:var(--font-display);letter-spacing:-.5px;font-size:19px;font-weight:800}.logo-brand{color:var(--text-primary)}.logo-highlight{background:linear-gradient(to right, var(--color-primary), var(--color-accent));-webkit-text-fill-color:transparent;-webkit-background-clip:text}.header-actions{align-items:center;gap:12px;display:flex}.header-btn{background-color:var(--bg-tertiary);border:1px solid var(--border-color);color:var(--text-secondary);border-radius:var(--radius-md);cursor:pointer;width:36px;height:36px;transition:all var(--transition-fast);justify-content:center;align-items:center;display:flex;position:relative}.header-btn:hover{background-color:var(--border-color);color:var(--text-primary)}.header-btn.active-config{border-color:var(--color-primary);color:var(--color-primary)}.active-dot{background-color:var(--color-success);border:1px solid var(--bg-secondary);width:7px;height:7px;box-shadow:0 0 4px var(--color-success);border-radius:50%;position:absolute;top:4px;right:4px}.main-content-hero{flex:1;justify-content:center;align-items:center;padding:40px 20px;display:flex}.upload-container{flex-direction:column;gap:32px;width:100%;max-width:800px;display:flex}.upload-dropzone{border:2px dashed var(--border-color);background-color:var(--bg-glass);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-radius:var(--radius-xl);text-align:center;cursor:pointer;transition:all var(--transition-normal);box-shadow:var(--shadow-md);padding:60px 40px;position:relative;overflow:hidden}.upload-dropzone:before{content:"";border-radius:var(--radius-xl);background:linear-gradient(135deg, var(--color-primary), var(--color-accent)) border-box;opacity:0;transition:opacity var(--transition-normal);border:2px solid #0000;position:absolute;inset:0;-webkit-mask-image:linear-gradient(#fff 0 0),linear-gradient(#fff 0 0);mask-image:linear-gradient(#fff 0 0),linear-gradient(#fff 0 0);-webkit-mask-position:0 0,0 0;mask-position:0 0,0 0;-webkit-mask-size:auto,auto;mask-size:auto,auto;-webkit-mask-repeat:repeat,repeat;mask-repeat:repeat,repeat;-webkit-mask-clip:padding-box,border-box;mask-clip:padding-box,border-box;-webkit-mask-origin:padding-box,border-box;mask-origin:padding-box,border-box;-webkit-mask-composite:xor;mask-composite:exclude;-webkit-mask-source-type:auto,auto;mask-mode:match-source,match-source}.upload-dropzone:hover,.upload-dropzone.drag-active{background-color:var(--bg-secondary);box-shadow:var(--shadow-lg), 0 0 25px var(--border-glow);border-color:#0000;transform:translateY(-2px)}.upload-dropzone:hover:before,.upload-dropzone.drag-active:before{opacity:.6}.upload-icon-wrapper{background:var(--color-primary-light);width:64px;height:64px;transition:transform var(--transition-normal);border-radius:50%;justify-content:center;align-items:center;margin:0 auto 20px;display:flex}.upload-dropzone:hover .upload-icon-wrapper{transform:scale(1.1)}.upload-icon{color:var(--color-primary)}.upload-dropzone h2{font-family:var(--font-display);margin-bottom:8px;font-size:24px;font-weight:700}.upload-instruction{color:var(--text-secondary);margin-bottom:24px;font-size:15px}.browse-text{color:var(--color-primary);font-weight:600}.file-limit-info{color:var(--text-muted);text-transform:uppercase;letter-spacing:1px;font-size:11px}.upload-loading-state{padding:20px 0}.glow-loader{background:linear-gradient(135deg, var(--color-primary), var(--color-accent));border-radius:50%;width:72px;height:72px;margin:0 auto 24px;padding:3px;animation:2s ease-in-out infinite glowPulse}.inner-loader{background:var(--bg-secondary);border-radius:50%;justify-content:center;align-items:center;width:100%;height:100%;display:flex}.loading-star-icon{color:var(--color-primary);animation:3s linear infinite spin}.loading-subtext{color:var(--text-secondary);margin-top:6px;margin-bottom:24px;font-size:14px}.mini-progress-bar-container{background-color:var(--bg-tertiary);border-radius:2px;width:240px;height:4px;margin:0 auto;overflow:hidden}.mini-progress-bar-fill.indeterminate{background:linear-gradient(to right, var(--color-primary), var(--color-accent));border-radius:2px;width:50%;height:100%;animation:1.5s ease-in-out infinite indeterminateBar}@keyframes indeterminateBar{0%{transform:translate(-100%)}to{transform:translate(200%)}}@keyframes glowPulse{0%,to{box-shadow:0 0 10px #06b6d433}50%{box-shadow:0 0 25px #06b6d499}}.upload-features{grid-template-columns:repeat(3,1fr);gap:20px;display:grid}.feature-card{background-color:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:24px}.feature-icon-box{background-color:var(--bg-tertiary);border-radius:var(--radius-md);width:40px;height:40px;color:var(--color-primary);justify-content:center;align-items:center;margin-bottom:16px;display:flex}.feature-card h4{font-family:var(--font-display);margin-bottom:8px;font-size:15px;font-weight:600}.feature-card p{color:var(--text-secondary);font-size:13px;line-height:1.5}.workspace-layout{flex:1;height:calc(100vh - 64px);display:flex;overflow:hidden}.app-sidebar{background-color:var(--bg-secondary);border-right:1px solid var(--border-color);flex-direction:column;gap:24px;width:320px;padding:24px;display:flex;overflow-y:auto}.sidebar-section{flex-direction:column;gap:12px;display:flex}.section-title{font-family:var(--font-display);text-transform:uppercase;letter-spacing:1px;color:var(--text-muted);border-bottom:1px solid var(--border-color);padding-bottom:6px;font-size:11px;font-weight:700}.loaded-file-badge{background-color:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-secondary);align-items:center;gap:8px;padding:10px 14px;display:flex}.file-name-text{white-space:nowrap;text-overflow:ellipsis;flex:1;font-size:13px;font-weight:500;overflow:hidden}.sidebar-label{color:var(--text-secondary);margin-bottom:6px;font-size:12px;font-weight:600;display:block}.sidebar-select{background-color:var(--bg-primary);border:1px solid var(--border-color);width:100%;color:var(--text-primary);border-radius:var(--radius-md);font-family:var(--font-sans);cursor:pointer;transition:all var(--transition-fast);padding:10px 12px;font-size:13px}.sidebar-select:focus{border-color:var(--color-primary);outline:none}.engine-notice{background-color:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:14px}.notice-header{align-items:center;gap:8px;margin-bottom:6px;display:flex}.notice-header h5{font-size:13px;font-weight:600}.engine-notice p{color:var(--text-secondary);font-size:12px;line-height:1.4}.notice-icon{color:var(--color-primary)}.gemini-active{border-left:3px solid var(--color-accent)}.gemini-missing{border-left:3px solid var(--color-danger)}.notice-warning{gap:6px;margin-top:4px;display:flex}.warning-icon{color:var(--color-danger);flex-shrink:0;margin-top:2px}.notice-warning p{color:var(--color-danger);font-size:11px}.sidebar-actions-panel{border-top:1px solid var(--border-color);margin-top:auto;padding-top:20px}.translation-progress-card{background-color:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:var(--radius-md);flex-direction:column;gap:12px;padding:16px;display:flex}.progress-details{justify-content:space-between;font-size:12px;font-weight:600;display:flex}.progress-label{color:var(--text-primary)}.progress-value{color:var(--color-primary)}.progress-bar-container{background-color:var(--bg-primary);border-radius:3px;height:6px;overflow:hidden}.progress-bar-fill{background:linear-gradient(to right, var(--color-primary), var(--color-accent));height:100%;transition:width var(--transition-normal);border-radius:3px}.progress-status-text{color:var(--text-secondary);text-align:center;font-size:11px}.progress-current-page{color:var(--text-muted);text-align:center;font-size:11px;font-style:italic}.btn-stop{margin-top:4px}.sidebar-footer{color:var(--text-muted);justify-content:center;align-items:center;gap:6px;font-size:11px;display:flex}.workspace-main-panel{background-color:var(--bg-primary);flex-direction:column;flex:1;height:100%;display:flex}.workspace-header-actions{background-color:var(--bg-secondary);border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;height:48px;padding:0 16px;display:flex}.btn-icon-label{color:var(--text-secondary);padding:6px 12px;font-size:13px}.btn-icon-label:hover{color:var(--text-primary)}.export-container{align-items:center;gap:12px;display:flex}.export-title{text-transform:uppercase;letter-spacing:.5px;color:var(--text-muted);font-size:12px;font-weight:600}.export-buttons-group{align-items:center;gap:8px;display:flex}.btn-export{height:32px;padding:5px 12px;font-size:12px}.text-success{color:var(--color-success)}.workspace-toolbar{background-color:var(--bg-tertiary);border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;height:44px;padding:0 16px;display:flex}.toolbar-navigation{align-items:center;gap:12px;display:flex}.page-indicator{color:var(--text-secondary);font-size:13px;font-weight:600}.toolbar-zoom-controls{color:var(--text-secondary);align-items:center;gap:8px;font-size:13px;display:flex}.zoom-text{font-family:var(--font-sans);text-align:center;min-width:44px;font-weight:500}.toolbar-btn{border:1px solid var(--border-color);color:var(--text-secondary);border-radius:var(--radius-sm);cursor:pointer;width:28px;height:28px;transition:all var(--transition-fast);background:0 0;justify-content:center;align-items:center;display:flex}.toolbar-btn:hover:not(:disabled){background-color:var(--border-color);color:var(--text-primary)}.toolbar-btn:disabled{opacity:.4;cursor:not-allowed}.toolbar-tabs{background-color:var(--bg-primary);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:2px;display:flex}.tab-btn{color:var(--text-secondary);border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-fast);background:0 0;border:none;align-items:center;gap:6px;padding:4px 12px;font-size:12px;font-weight:500;display:flex}.tab-btn.active{background-color:var(--bg-secondary);color:var(--text-primary);box-shadow:var(--shadow-sm)}.workspace-split{flex:1;height:calc(100% - 92px);display:flex;overflow:hidden}.split-panel{flex-direction:column;flex:1;display:flex;position:relative;overflow:hidden}.original-panel{border-right:1px solid var(--border-color)}.panel-header{border-bottom:1px solid var(--border-color);background-color:var(--bg-secondary);justify-content:space-between;align-items:center;padding:10px 16px;display:flex}.panel-header h4{font-family:var(--font-display);text-transform:uppercase;letter-spacing:.5px;color:var(--text-secondary);font-size:13px;font-weight:700}.badge{text-transform:uppercase;border-radius:10px;padding:2px 8px;font-size:10px;font-weight:600}.badge-original{background-color:var(--bg-tertiary);color:var(--text-secondary)}.badge-translation{background-color:var(--color-primary-light);color:var(--color-primary)}.panel-content{background-color:var(--bg-primary);flex:1;position:relative;overflow-y:auto}.scrollable{scrollbar-gutter:stable}.canvas-wrapper{justify-content:center;align-items:flex-start;min-height:100%;padding:24px;display:flex;position:relative}.pdf-canvas{box-shadow:var(--shadow-md);border-radius:var(--radius-sm);background-color:#fff;max-width:100%}.canvas-spinner{z-index:5;background-color:#0a0b10b3;flex-direction:column;justify-content:center;align-items:center;gap:12px;display:flex;position:absolute;inset:0}.spinner-icon{color:var(--color-primary);animation:1s linear infinite spin}.text-viewer-pane{padding:24px}.extracted-text-display{font-family:var(--font-sans);white-space:pre-wrap;color:var(--text-primary);background-color:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);tab-size:4;padding:20px;font-size:14px;line-height:1.6}.empty-state-card{text-align:center;color:var(--text-muted);flex-direction:column;justify-content:center;align-items:center;gap:12px;padding:60px 24px;display:flex}.empty-icon{color:var(--text-muted)}.editor-container{flex-direction:column;display:flex}.editor-wrapper{flex-direction:column;flex:1;height:100%;display:flex}.editor-sub-header{background-color:var(--bg-tertiary);border-bottom:1px solid var(--border-color);color:var(--text-muted);align-items:center;gap:6px;padding:8px 16px;font-size:11px;display:flex}.translation-textarea{resize:none;background-color:var(--bg-primary);width:100%;color:var(--text-primary);font-family:var(--font-sans);transition:background-color var(--transition-fast);border:none;flex:1;padding:24px;font-size:14px;line-height:1.6}.translation-textarea:focus{background-color:var(--bg-secondary);outline:none}.editor-empty-state{text-align:center;color:var(--text-secondary);flex-direction:column;flex:1;justify-content:center;align-items:center;gap:16px;padding:40px 24px;display:flex}.editor-empty-state h4{font-family:var(--font-display);font-size:17px;font-weight:600}.editor-empty-state p{color:var(--text-muted);max-width:320px;font-size:13px;line-height:1.5}.text-glow-purple{color:var(--color-accent);filter:drop-shadow(0 0 8px #8b5cf666)}.editor-loading-state{text-align:center;background-color:var(--bg-glass);flex-direction:column;flex:1;justify-content:center;align-items:center;gap:16px;padding:40px 24px;display:flex}.ai-sparkle-loader{background-color:var(--color-primary-light);border-radius:50%;justify-content:center;align-items:center;width:64px;height:64px;display:flex;box-shadow:0 0 15px #06b6d433}.sparkle-icon-animated{color:var(--color-primary);animation:2.5s ease-in-out infinite floatIcon}.editor-loading-state h4{font-family:var(--font-display);font-size:16px;font-weight:600}.editor-loading-state p{color:var(--text-secondary);font-size:13px}@keyframes floatIcon{0%,to{transform:translateY(0)scale(1)}50%{filter:drop-shadow(0 0 6px var(--color-primary));transform:translateY(-6px)scale(1.1)}}.api-status{border-radius:var(--radius-md);align-items:center;gap:8px;margin-top:12px;padding:10px 14px;font-size:12px;font-weight:500;display:flex}.api-status.testing{background-color:var(--bg-tertiary);color:var(--text-secondary)}.api-status.success{background-color:var(--color-success-bg);color:var(--color-success);border:1px solid #10b98133}.api-status.error{background-color:var(--color-danger-bg);color:var(--color-danger);border:1px solid #ef444433}.api-key-help{color:var(--text-muted);gap:6px;margin-top:6px;font-size:11px;line-height:1.4;display:flex}.help-icon{flex-shrink:0;margin-top:2px}.animate-pulse{animation:1.5s ease-in-out infinite pulse}@keyframes pulse{0%,to{opacity:.6}50%{opacity:1}}@media (width<=1024px){.app-sidebar{width:260px;padding:16px}.upload-features{grid-template-columns:1fr;gap:12px}.workspace-split{flex-direction:column}.original-panel{border-right:none;border-bottom:1px solid var(--border-color)}}