:root{--bg-primary:#0b0f19;--bg-secondary:#111827;--bg-surface:#1e293b;--bg-surface-elevated:#283548;--bg-surface-glass:#1e293bd9;--bg-hover:#ffffff14;--border-subtle:#37475d;--border-focus:#818cf8;--border-glass:#ffffff26;--text-main:#fff;--text-muted:#cbd5e1;--text-dim:#94a3b8;--text-inverse:#0f172a;--accent-primary:#6366f1;--accent-primary-hover:#4f46e5;--accent-primary-light:#818cf8;--accent-secondary:#8b5cf6;--accent-gradient:linear-gradient(135deg, #6366f1 0%, #a855f7 50%, #ec4899 100%);--accent-gradient-subtle:linear-gradient(135deg, #6366f138 0%, #a855f738 100%);--success:#34d399;--success-bg:#10b98133;--warning:#fbbf24;--warning-bg:#f59e0b33;--danger:#f87171;--danger-bg:#ef444433;--info:#38bdf8;--info-bg:#0ea5e933;--pair-active-bg:#6366f138;--pair-active-border:#818cf8;--pair-hover-bg:#6366f11a;--font-sans:"Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-heading:"Outfit", var(--font-sans);--font-mono:"JetBrains Mono", monospace;--shadow-sm:0 1px 2px 0 #0006;--shadow-md:0 4px 6px -1px #00000080, 0 2px 4px -2px #0006;--shadow-lg:0 10px 20px -3px #0009, 0 4px 6px -4px #0006;--shadow-glow:0 0 25px #6366f166;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-xl:24px;--radius-full:9999px;--transition-fast:.15s ease;--transition-normal:.25s cubic-bezier(.4, 0, .2, 1);--transition-smooth:.4s cubic-bezier(.16, 1, .3, 1)}[data-theme=light]{--bg-primary:#f8fafc;--bg-secondary:#f1f5f9;--bg-surface:#fff;--bg-surface-elevated:#fff;--bg-surface-glass:#ffffffe6;--bg-hover:#0000000d;--border-subtle:#cbd5e1;--border-focus:#4f46e5;--border-glass:#0000001a;--text-main:#0f172a;--text-muted:#334155;--text-dim:#64748b;--text-inverse:#fff;--pair-active-bg:#eff6ff;--pair-active-border:#6366f1;--pair-hover-bg:#f8fafc;--shadow-sm:0 1px 3px 0 #0000001a;--shadow-md:0 4px 6px -1px #0000001a;--shadow-lg:0 10px 15px -3px #0000001a;--shadow-glow:0 0 20px #6366f12e}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html,body{background-color:var(--bg-primary);min-height:100vh;color:var(--text-main);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition:background-color var(--transition-normal), color var(--transition-normal);font-size:15px;line-height:1.6;overflow-x:hidden}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border-subtle);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--text-dim)}.app-container{background:radial-gradient(circle at 10% 20%, #6366f114 0%, transparent 40%), radial-gradient(circle at 90% 80%, #a855f714 0%, transparent 40%), var(--bg-primary);flex-direction:column;min-height:100vh;display:flex;position:relative}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);color:var(--text-main);font-weight:700;line-height:1.25}.gradient-text{background:var(--accent-gradient);-webkit-text-fill-color:transparent;-webkit-background-clip:text;display:inline-block}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes pulseGlow{0%,to{box-shadow:0 0 15px #6366f133}50%{box-shadow:0 0 25px #6366f173}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}@keyframes spin{to{transform:rotate(360deg)}}.animate-fade-in{animation:fadeIn var(--transition-smooth) forwards}.animate-spin{animation:1s linear infinite spin}.glass-panel{background:var(--bg-surface-glass);-webkit-backdrop-filter:blur(16px);border:1px solid var(--border-glass);border-radius:var(--radius-lg);box-shadow:var(--shadow-md)}.badge{border-radius:var(--radius-full);text-transform:uppercase;letter-spacing:.5px;align-items:center;gap:5px;padding:3px 8px;font-size:11px;font-weight:600;display:inline-flex}.badge-primary{background:var(--accent-gradient-subtle);color:var(--accent-primary);border:1px solid #6366f14d}.badge-success{background:var(--success-bg);color:var(--success);border:1px solid #10b9814d}.badge-warning{background:var(--warning-bg);color:var(--warning);border:1px solid #f59e0b4d}.badge-info{background:var(--info-bg);color:var(--info);border:1px solid #0ea5e94d}.app-header{z-index:50;background:var(--bg-surface-glass);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--border-glass);box-shadow:var(--shadow-sm);justify-content:space-between;align-items:center;padding:12px 24px;display:flex;position:sticky;top:0}.brand-section{align-items:center;gap:12px;display:flex}.brand-logo-icon{border-radius:var(--radius-md);background:var(--accent-gradient);color:#fff;width:40px;height:40px;box-shadow:var(--shadow-glow);justify-content:center;align-items:center;display:flex}.brand-title{letter-spacing:-.5px;color:var(--text-main);font-size:1.25rem;font-weight:800}.brand-subtitle{color:var(--text-muted);font-size:.75rem}.header-actions{align-items:center;gap:10px;display:flex}.lang-selector-group{background:var(--bg-secondary);border:1px solid var(--border-subtle);border-radius:var(--radius-full);align-items:center;gap:6px;padding:4px 8px;display:flex}.lang-select{color:var(--text-main);cursor:pointer;border-radius:var(--radius-sm);background:0 0;border:none;outline:none;padding:4px 6px;font-family:inherit;font-size:.85rem;font-weight:600}.lang-select option{background:var(--bg-secondary);color:var(--text-main)}.lang-swap-btn{background:var(--bg-surface);border:1px solid var(--border-subtle);color:var(--text-muted);cursor:pointer;width:26px;height:26px;transition:transform var(--transition-fast), color var(--transition-fast);border-radius:50%;justify-content:center;align-items:center;display:flex}.lang-swap-btn:hover{color:var(--accent-primary-light);transform:rotate(180deg)}.btn{border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);white-space:nowrap;border:1px solid #0000;outline:none;justify-content:center;align-items:center;gap:8px;padding:8px 16px;font-family:inherit;font-size:.875rem;font-weight:600;text-decoration:none;display:inline-flex}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--accent-gradient);color:#fff;box-shadow:0 2px 8px #6366f159}.btn-primary:hover:not(:disabled){opacity:.95;transform:translateY(-1px);box-shadow:0 4px 14px #6366f180}.btn-secondary{background:var(--bg-surface);color:var(--text-main);border-color:var(--border-subtle)}.btn-secondary:hover:not(:disabled){background:var(--bg-hover);border-color:var(--accent-primary-light)}.btn-ghost{color:var(--text-muted);background:0 0}.btn-ghost:hover:not(:disabled){background:var(--bg-hover);color:var(--text-main)}.btn-icon{border-radius:var(--radius-md);width:36px;height:36px;padding:8px}.upload-container{width:100%;max-width:860px;margin:40px auto;padding:0 20px}.dropzone{border:2px dashed var(--border-subtle);border-radius:var(--radius-xl);text-align:center;background:var(--bg-surface-glass);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);cursor:pointer;transition:all var(--transition-normal);padding:50px 30px;position:relative;overflow:hidden}.dropzone:hover,.dropzone.is-dragover{border-color:var(--accent-primary-light);box-shadow:var(--shadow-glow);background:#6366f114;transform:scale(1.005)}.dropzone-icon-wrap{border-radius:var(--radius-lg);background:var(--accent-gradient-subtle);width:72px;height:72px;color:var(--accent-primary-light);border:1px solid #6366f166;justify-content:center;align-items:center;margin:0 auto 20px;display:flex}.dropzone-title{color:var(--text-main);margin-bottom:8px;font-size:1.35rem}.dropzone-desc{color:var(--text-muted);margin-bottom:24px;font-size:.9rem}.dropzone-pills{flex-wrap:wrap;justify-content:center;gap:10px;display:flex}.dropzone-pill{border-radius:var(--radius-full);background:var(--bg-secondary);border:1px solid var(--border-subtle);color:var(--text-muted);padding:4px 10px;font-size:.75rem;font-weight:600}.upload-options-card{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin-top:24px;padding:16px 24px;display:flex}.option-item{color:var(--text-main);align-items:center;gap:10px;font-size:.85rem;display:flex}.option-select{background:var(--bg-secondary);border:1px solid var(--border-subtle);color:var(--text-main);border-radius:var(--radius-md);cursor:pointer;outline:none;padding:6px 12px;font-family:inherit}.toggle-switch{cursor:pointer;-webkit-user-select:none;user-select:none;color:var(--text-main);align-items:center;gap:8px;display:flex}.toggle-switch input{cursor:pointer;accent-color:var(--accent-primary);width:16px;height:16px}.sample-section{text-align:center;margin-top:28px}.sample-buttons-row{flex-wrap:wrap;justify-content:center;gap:12px;margin-top:10px;display:flex}.progress-card{background:var(--bg-surface-glass);border:1px solid var(--border-glass);border-radius:var(--radius-xl);max-width:760px;box-shadow:var(--shadow-lg);text-align:center;margin:60px auto;padding:32px}.progress-header{justify-content:space-between;align-items:center;margin-bottom:20px;display:flex}.progress-bar-track{background:var(--bg-secondary);border-radius:var(--radius-full);width:100%;height:10px;margin-bottom:16px;position:relative;overflow:hidden}.progress-bar-fill{background:var(--accent-gradient);border-radius:var(--radius-full);height:100%;transition:width .3s}.progress-steps-list{justify-content:space-between;margin-top:24px;display:flex;position:relative}.progress-step-item{color:var(--text-dim);flex-direction:column;align-items:center;gap:6px;font-size:.75rem;display:flex}.progress-step-item.is-active{color:var(--accent-primary-light);font-weight:700}.progress-step-item.is-done{color:var(--success)}.step-circle{border:2px solid var(--border-subtle);background:var(--bg-secondary);border-radius:50%;justify-content:center;align-items:center;width:28px;height:28px;font-size:.8rem;font-weight:700;display:flex}.is-active .step-circle{border-color:var(--accent-primary);background:var(--accent-primary);color:#fff;box-shadow:var(--shadow-glow)}.is-done .step-circle{border-color:var(--success);background:var(--success);color:#fff}.confidence-warning{border-radius:var(--radius-md);background:var(--warning-bg);color:#fbbf24;text-align:left;border:1px solid #f59e0b66;align-items:flex-start;gap:12px;margin-top:20px;padding:14px 18px;font-size:.85rem;display:flex}.reader-workspace{flex-direction:column;flex:1;width:100%;display:flex}.reader-toolbar{z-index:40;background:var(--bg-surface-glass);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border-subtle);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding:10px 24px;display:flex;position:sticky;top:65px}.doc-info-meta{color:var(--text-muted);align-items:center;gap:14px;font-size:.825rem;display:flex}.toolbar-controls{align-items:center;gap:10px;display:flex}.search-input-box{background:var(--bg-secondary);border:1px solid var(--border-subtle);border-radius:var(--radius-md);align-items:center;gap:8px;padding:4px 10px;display:flex}.search-input-box input{color:var(--text-main);background:0 0;border:none;outline:none;width:160px;font-size:.85rem}.font-size-controls{background:var(--bg-secondary);border:1px solid var(--border-subtle);border-radius:var(--radius-md);align-items:center;padding:2px;display:flex}.dual-header-grid{border-bottom:1px solid var(--border-subtle);background:var(--bg-secondary);color:var(--text-muted);grid-template-columns:1fr 1fr;gap:20px;padding:12px 24px 8px;font-size:.9rem;font-weight:700;display:grid}.dual-header-col{justify-content:space-between;align-items:center;display:flex}.paragraphs-container{flex-direction:column;gap:14px;width:100%;max-width:1600px;margin:0 auto;padding:20px 24px;display:flex}.pair-row{border-radius:var(--radius-lg);transition:all var(--transition-fast);grid-template-columns:1fr 1fr;gap:20px;padding:4px;display:grid;position:relative}.pair-row:hover{background:var(--pair-hover-bg)}.pair-row.is-active-pair{background:var(--pair-active-bg);box-shadow:0 0 0 1.5px var(--pair-active-border)}.paragraph-card{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-md);min-height:80px;transition:border-color var(--transition-fast), box-shadow var(--transition-fast);flex-direction:column;justify-content:space-between;padding:16px 18px;display:flex;position:relative}.is-active-pair .paragraph-card{border-color:var(--pair-active-border)}.paragraph-card-header{color:var(--text-dim);justify-content:space-between;align-items:center;margin-bottom:8px;font-size:.75rem;display:flex}.paragraph-number-badge{font-weight:700;font-family:var(--font-mono);color:var(--text-muted)}.card-actions-hover{opacity:.4;transition:opacity var(--transition-fast);gap:6px;display:flex}.paragraph-card:hover .card-actions-hover,.is-active-pair .card-actions-hover{opacity:1}.paragraph-text{color:var(--text-main);white-space:pre-wrap;word-break:break-word;line-height:1.7}.paragraph-text mark{color:#000;background:#fde047;border-radius:2px;padding:0 2px}.skeleton-line{background:linear-gradient(90deg, var(--bg-secondary) 25%, var(--bg-surface-elevated) 50%, var(--bg-secondary) 75%);background-size:200% 100%;border-radius:4px;height:14px;margin-bottom:8px;animation:1.5s infinite shimmer}.edit-textarea{background:var(--bg-secondary);border:1px solid var(--border-focus);width:100%;min-height:100px;color:var(--text-main);border-radius:var(--radius-sm);font-family:inherit;font-size:inherit;resize:vertical;outline:none;padding:10px;line-height:1.6}.edit-actions-row{justify-content:flex-end;gap:8px;margin-top:10px;display:flex}.page-divider-badge{justify-content:center;align-items:center;margin:16px 0;display:flex;position:relative}.page-divider-badge:before{content:"";background:var(--border-subtle);z-index:1;height:1px;position:absolute;top:50%;left:0;right:0}.page-divider-text{z-index:2;background:var(--bg-secondary);border:1px solid var(--border-subtle);border-radius:var(--radius-full);color:var(--text-muted);padding:4px 14px;font-size:.75rem;font-weight:700;position:relative}.modal-overlay{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:100;background:#000c;justify-content:center;align-items:center;padding:20px;animation:.2s fadeIn;display:flex;position:fixed;inset:0}.modal-card{background:var(--bg-surface);border:1px solid var(--border-glass);border-radius:var(--radius-xl);width:100%;max-width:620px;max-height:90vh;box-shadow:var(--shadow-lg);color:var(--text-main);overflow-y:auto}.modal-header{border-bottom:1px solid var(--border-subtle);justify-content:space-between;align-items:center;padding:20px 24px;display:flex}.modal-header h3{color:var(--text-main);font-size:1.15rem}.modal-body{flex-direction:column;gap:20px;padding:24px;display:flex}.modal-footer{border-top:1px solid var(--border-subtle);justify-content:flex-end;gap:12px;padding:16px 24px;display:flex}.form-group{flex-direction:column;gap:6px;display:flex}.form-label{color:var(--text-main);font-size:.875rem;font-weight:600}.form-input{background:var(--bg-secondary);border:1px solid var(--border-subtle);color:var(--text-main);border-radius:var(--radius-md);transition:border-color var(--transition-fast), box-shadow var(--transition-fast);outline:none;padding:10px 14px;font-family:inherit;font-size:.9rem}.form-input:focus{border-color:var(--border-focus);box-shadow:0 0 0 2px #6366f140}.form-input::placeholder{color:var(--text-dim);opacity:.8}.form-hint{color:var(--text-muted);font-size:.78rem;line-height:1.4}.provider-grid{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;display:grid}.provider-card{border:1.5px solid var(--border-subtle);border-radius:var(--radius-md);background:var(--bg-secondary);color:var(--text-main);cursor:pointer;transition:all var(--transition-fast);text-align:left;flex-direction:column;gap:4px;width:100%;padding:14px;font-family:inherit;display:flex}.provider-card strong,.provider-card .provider-card-title{color:var(--text-main);font-size:.88rem;font-weight:700;display:block}.provider-card span,.provider-card .provider-card-desc{color:var(--text-muted);font-size:.75rem;line-height:1.4}.provider-card:hover{border-color:var(--accent-primary-light);background:var(--bg-hover)}.provider-card.is-selected{background:#6366f138;border-color:#818cf8;box-shadow:0 0 0 1px #818cf8}.provider-card.is-selected strong,.provider-card.is-selected .provider-card-title{color:#fff}.provider-card.is-selected span,.provider-card.is-selected .provider-card-desc{color:#c7d2fe}.provider-info-box{border-radius:var(--radius-md);color:var(--text-main);background:#6366f11f;border:1px solid #6366f159;padding:12px 16px;font-size:.85rem;line-height:1.5}.provider-info-box strong{color:#a5b4fc}.provider-info-box span{color:var(--text-main)}@media (width<=900px){.dual-header-grid{grid-template-columns:1fr}.pair-row{grid-template-columns:1fr;gap:10px}.app-header{padding:10px 16px}.brand-subtitle{display:none}}