:root{--background-primary: #f8fafc;--background-secondary: #f1f5f9;--background-tertiary: #e2e8f0;--text-primary: #1e293b;--text-secondary: #64748b;--text-tertiary: #94a3b8;--border-color: #cbd5e1;--shadow-color: rgba(0, 0, 0, .05);--accent-color: #3b82f6;--card-background: rgba(255, 255, 255, .9);--glass-border: rgba(255, 255, 255, .2);--glass-shadow: 0 8px 32px rgba(31, 38, 135, .15);--border-radius-sm: 8px;--border-radius-md: 12px;--border-radius-lg: 16px;--transition-speed: .3s;--transition-ease: cubic-bezier(.4, 0, .2, 1);--ai-gradient-start: var(--accent-color);--ai-gradient-end: #8b5cf6;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--font-size-xs: .75rem;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-weight-normal: 400;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700;--transition-fast: .2s ease;--transition-medium: .3s ease}.dark{--background-primary: #0f172a;--background-secondary: #1e293b;--background-tertiary: #334155;--text-primary: #f1f5f9;--text-secondary: #cbd5e1;--text-tertiary: #94a3b8;--border-color: #475569;--shadow-color: rgba(0, 0, 0, .3);--card-background: rgba(30, 41, 59, .9);--glass-border: rgba(255, 255, 255, .1);--glass-shadow: 0 8px 32px rgba(0, 0, 0, .3)}[data-background=gradient]{background:linear-gradient(135deg,var(--background-primary),var(--background-secondary))!important}[data-background=geometric]{background-image:radial-gradient(circle at 10% 20%,rgba(59,130,246,.1) 0%,transparent 20%),radial-gradient(circle at 90% 80%,rgba(139,92,246,.1) 0%,transparent 20%)!important;background-color:var(--background-primary)!important}[data-background=wave]{background-image:radial-gradient(circle at 20% 30%,rgba(59,130,246,.05) 0%,transparent 15%),radial-gradient(circle at 80% 70%,rgba(139,92,246,.05) 0%,transparent 15%),radial-gradient(circle at 40% 10%,rgba(16,185,129,.05) 0%,transparent 15%)!important;background-color:var(--background-primary)!important}[data-background=dots]{background-image:radial-gradient(circle,var(--accent-color) 1px,transparent 1px)!important;background-size:20px 20px!important;background-color:var(--background-primary)!important}*{margin:0;padding:0;box-sizing:border-box}body{font-family:SF Pro Display,-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,sans-serif;background:#fafbfc;color:#0f172a;min-height:100vh;line-height:1.5;font-weight:400;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.dark body{background:#0a0e1a;color:#f8fafc}.futuristic-card{background:var(--card-background);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--glass-border);border-radius:var(--border-radius-lg);box-shadow:var(--glass-shadow);transition:all var(--transition-speed) var(--transition-ease);position:relative;overflow:hidden}.futuristic-card:before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--accent-color),var(--ai-gradient-end));opacity:.7}.futuristic-card:hover{transform:translateY(-4px);box-shadow:0 16px 48px #00000026}.dark .futuristic-card:hover{box-shadow:0 16px 48px #00000059}.futuristic-btn{background:#2563eb;border:none;border-radius:8px;color:#fff;cursor:pointer;transition:all .15s ease;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 20px;font-weight:500;font-size:14px;text-decoration:none}.futuristic-btn:hover{background:#1d4ed8}.dark .futuristic-btn{background:#3b82f6}.dark .futuristic-btn:hover{background:#2563eb}.futuristic-btn:active{transform:translateY(0)}.futuristic-btn.primary{background:#2563eb;color:#fff;font-weight:600}.futuristic-btn.primary:hover{background:#1d4ed8}.futuristic-input{background:var(--card-background);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--glass-border);border-radius:var(--border-radius-md);color:var(--text-primary);padding:14px 18px;font-size:1rem;transition:all var(--transition-speed) var(--transition-ease);width:100%;position:relative}.futuristic-input:focus{outline:none;border-color:var(--accent-color);box-shadow:0 0 0 4px #3b82f640}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--text-tertiary);border-radius:10px;transition:background var(--transition-speed) var(--transition-ease);border:2px solid transparent;background-clip:content-box}::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}@keyframes cardEntrance{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.futuristic-card{animation:cardEntrance .6s ease-out forwards}.futuristic-card:nth-child(1){animation-delay:.1s}.futuristic-card:nth-child(2){animation-delay:.2s}.futuristic-card:nth-child(3){animation-delay:.3s}.futuristic-card:nth-child(4){animation-delay:.4s}.futuristic-card:nth-child(5){animation-delay:.5s}.file-upload{width:100%;margin:1.25rem 0}.upload-area{padding:1.75rem 1.5rem;text-align:center;border:2px dashed var(--border-color);border-radius:var(--border-radius-lg);transition:all .3s ease;position:relative;overflow:hidden;background:var(--card-background);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}.upload-area:hover{border-color:var(--accent-color);background:#3b82f60d}.upload-area.drag-active{border-color:var(--accent-color);background:#3b82f61a;box-shadow:0 10px 30px #3b82f626}.upload-icon{position:relative;display:inline-block;margin-bottom:1.5rem}.upload-icon svg:first-child{color:var(--accent-color);opacity:.8}.upload-overlay{position:absolute;bottom:-8px;right:-8px;color:var(--ai-gradient-end);background:#fff;border-radius:50%;padding:4px;box-shadow:0 2px 8px #0000001a}.upload-title{font-size:1.15rem;font-weight:700;margin-bottom:.5rem;color:var(--text-primary)}.upload-subtitle{color:var(--text-secondary);margin-bottom:1rem;font-size:.95rem}.browse-btn{padding:.7rem 1.25rem;font-size:.95rem;font-weight:600;gap:.5rem;margin-bottom:.75rem;box-shadow:0 4px 16px #3b82f64d}.browse-btn:hover{box-shadow:0 6px 20px #3b82f666;transform:translateY(-2px)}.upload-info{color:var(--text-tertiary);font-size:.8rem;margin:0}.compact{margin:1rem 0}.compact-upload-area{display:flex;align-items:center;justify-content:center;gap:.75rem;padding:.75rem 1rem;border:1px dashed var(--border-color);border-radius:var(--border-radius-md);cursor:pointer;transition:all .2s ease}.compact-upload-area:hover{border-color:var(--accent-color);background:#3b82f60d}.compact-upload-area svg{color:var(--accent-color)}.upload-status{display:flex;align-items:center;gap:.5rem;padding:.75rem 1rem;margin-top:1rem;border-radius:var(--border-radius-md);font-size:.9rem;font-weight:500;transition:all .3s ease}.upload-status.validating{background:#3b82f61a;border:1px solid rgba(59,130,246,.3);color:var(--accent-color)}.upload-status.success{background:#10b9811a;border:1px solid rgba(16,185,129,.3);color:#10b981}.upload-status.error{background:#ef44441a;border:1px solid rgba(239,68,68,.3);color:#ef4444}.upload-status .spinner{width:16px;height:16px;border:2px solid transparent;border-top:2px solid currentColor;border-radius:50%;animation:spin 1s linear infinite}.upload-progress{width:100%;height:4px;margin-left:8px;accent-color:var(--accent-color)}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width: 768px){.upload-area{padding:1.25rem 1rem}.upload-title{font-size:1.05rem}.browse-btn{padding:.6rem 1rem;font-size:.9rem}.compact-upload-area{padding:.6rem .875rem;font-size:.9rem}.upload-status{margin-top:.75rem;padding:.5rem .75rem;font-size:.85rem}}.enhanced-pdf-preview{margin:2rem 0}.preview-header{padding:1.5rem;margin-bottom:1.5rem;display:flex;flex-direction:column;gap:1rem;background:var(--card-background);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--glass-border);border-radius:var(--border-radius-lg);box-shadow:var(--glass-shadow)}.preview-header:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--accent-color),var(--ai-gradient-end));border-radius:var(--border-radius-lg) var(--border-radius-lg) 0 0}.preview-controls{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem}.view-controls{display:flex;gap:.5rem}.view-btn{padding:.5rem 1rem;border-radius:var(--border-radius-md);background:transparent;border:1px solid var(--border-color);color:var(--text-primary);cursor:pointer;transition:all var(--transition-speed) var(--transition-ease)}.view-btn:hover{background:var(--background-secondary)}.view-btn.active{background:linear-gradient(135deg,var(--accent-color),var(--ai-gradient-end));color:#fff;border-color:var(--accent-color)}.zoom-controls{display:flex;align-items:center;gap:.5rem}.zoom-btn{padding:.5rem;border-radius:var(--border-radius-md);background:transparent;border:1px solid var(--border-color);color:var(--text-primary);cursor:pointer;transition:all var(--transition-speed) var(--transition-ease)}.zoom-btn:hover:not(:disabled){background:var(--background-secondary)}.zoom-btn:disabled{opacity:.5;cursor:not-allowed}.zoom-level{min-width:3rem;text-align:center;font-weight:500;color:var(--text-primary)}.preview-instructions{color:var(--text-secondary);font-size:.9rem;text-align:center;margin:0;font-style:italic}.pdf-list{display:flex;flex-direction:column;gap:1.5rem}.pdf-item-wrapper{position:relative;display:flex;align-items:flex-start;gap:1rem}.item-number{width:2rem;height:2rem;border-radius:50%;background:linear-gradient(135deg,var(--accent-color),var(--ai-gradient-end));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.9rem;flex-shrink:0;margin-top:1rem}.enhanced-pdf-item{position:relative;padding:1.5rem;transition:all var(--transition-speed) var(--transition-ease);flex:1;background:var(--card-background);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid 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#0003}.page-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:#000000b3;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity var(--transition-speed) var(--transition-ease)}.pdf-page-thumbnail:hover .page-overlay{opacity:1}.page-actions{display:flex;gap:.5rem}.action-btn{padding:.25rem;border-radius:var(--border-radius-sm);background:#fff3;border:none;color:#fff;cursor:pointer;transition:all var(--transition-speed) 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ease;text-align:center;font-size:.9rem;font-weight:500;box-shadow:0 2px 8px #0000000d}.theme-option:hover{background:#3b82f626;border-color:var(--accent-color);transform:translateY(-2px);box-shadow:0 4px 12px #0000001a}.theme-option.selected{background:linear-gradient(135deg,var(--ai-gradient-start),var(--ai-gradient-end));color:#fff;border:none;box-shadow:0 4px 16px #3b82f64d}@media (max-width: 768px){.theme-switcher{top:1rem;right:1rem}.settings-btn{width:44px;height:44px;padding:.75rem}.theme-menu{min-width:250px;padding:1.25rem;right:-10px}.color-options{grid-template-columns:repeat(6,1fr);gap:.625rem}.color-option{width:32px;height:32px}.background-options{grid-template-columns:repeat(2,1fr);gap:.625rem}.theme-option{padding:.75rem;font-size:.85rem}}@media (max-width: 480px){.theme-menu{min-width:220px;padding:1rem}.color-options{grid-template-columns:repeat(6,1fr);gap:.5rem}.color-option{width:28px;height:28px}.background-options{grid-template-columns:repeat(2,1fr);gap:.5rem}.theme-option{padding:.625rem;font-size:.8rem}}:root{--accent-color: #3b82f6;--ai-gradient-start: #3b82f6;--ai-gradient-end: #1d4ed8;--background-primary: #fafbfc;--background-secondary: #f8fafc;--card-background: rgba(255, 255, 255, .8);--text-primary: #0f172a;--text-secondary: #64748b;--border-color: #e2e8f0;--glass-border: rgba(0, 0, 0, .05);--glass-shadow: 0 4px 24px rgba(0, 0, 0, .06);--border-radius-sm: 6px;--border-radius-md: 8px;--border-radius-lg: 12px;--border-radius-xl: 16px}.dark,html.dark{--background-primary: #0a0e1a;--background-secondary: #1e293b;--card-background: rgba(30, 41, 59, .8);--text-primary: #f8fafc;--text-secondary: #94a3b8;--border-color: #334155;--glass-border: rgba(255, 255, 255, .08);--glass-shadow: 0 4px 24px rgba(0, 0, 0, .2)}.app{min-height:100vh;padding:0;background:var(--background-primary)!important;font-family:SF Pro Display,-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,sans-serif;color:var(--text-primary)!important;transition:background .3s ease,color .3s ease}.app-header{padding:24px 48px;margin:0;position:sticky;top:0;z-index:100;background:var(--card-background);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid var(--glass-border);transition:all .3s ease}.header-content{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1.5rem;position:relative;z-index:1}.logo{display:flex;align-items:center;gap:1.25rem}.logo-icon-container{position:relative;display:flex;align-items:center;justify-content:center}.logo-icon-wrapper{position:relative;display:flex;align-items:center;justify-content:center;width:48px;height:48px;background:linear-gradient(135deg,var(--accent-color),#8b5cf6);border-radius:12px;box-shadow:0 4px 20px #3b82f64d;transition:all .3s ease}.logo-icon-wrapper:hover{transform:rotate(5deg) scale(1.1);box-shadow:0 8px 32px #3b82f666}.logo-icon{color:#fff}.logo-accent{position:absolute;bottom:-2px;right:-2px;color:var(--accent-color)}.logo-title{display:flex;align-items:center;gap:.25rem;margin:0;font-weight:800}.logo-main{font-size:28px;font-weight:700;color:var(--text-primary);letter-spacing:-.02em;transition:color .3s 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cubic-bezier(.4,0,.2,1);display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 20px;font-weight:500;font-size:14px;text-decoration:none;min-height:44px;box-shadow:0 4px 20px #3b82f64d}.futuristic-btn:hover{transform:translateY(-2px);box-shadow:0 8px 28px #3b82f666}.futuristic-btn.primary{font-weight:600;box-shadow:0 6px 24px #3b82f666}.futuristic-btn.primary:hover{box-shadow:0 10px 32px #3b82f680}.futuristic-card{background:var(--card-background);border:1px solid var(--border-color);border-radius:var(--border-radius-lg);box-shadow:var(--glass-shadow);transition:all .3s ease;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}.futuristic-card:hover{transform:translateY(-2px);box-shadow:0 8px 32px #0000001f;border-color:var(--accent-color)}.dark .futuristic-card:hover{box-shadow:0 8px 32px #0000004d}.action-card{background:var(--card-background);border:1px solid var(--border-color);border-radius:var(--border-radius-lg);color:var(--text-primary);cursor:pointer;transition:all .3s ease;display:block;padding:20px;text-decoration:none;width:100%;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}.action-card:hover{border-color:var(--accent-color);box-shadow:var(--glass-shadow);transform:translateY(-2px)}.action-card:disabled{opacity:.5;cursor:not-allowed}.action-content{display:flex;align-items:center;gap:16px;margin-bottom:8px}.action-text h4{font-size:16px;font-weight:600;margin:0 0 4px;color:inherit}.action-text p{font-size:14px;color:var(--text-secondary);margin:0;transition:color .3s ease}.action-indicator{font-size:14px;color:var(--accent-color);font-weight:500;transition:color .3s ease}.workspace{max-width:1120px;margin:0 auto;padding:0 24px}.pdf-toolbar{background:var(--card-background);border:1px solid var(--border-color);border-radius:var(--border-radius-lg);padding:24px;margin-bottom:24px;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);transition:all .3s ease}.toolbar-section{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px}.file-info-section{display:flex;align-items:center;gap:24px}.logo-section{display:flex;align-items:center;gap:12px}.fil.fil .app{min-height:100vh;background:var(--background-primary);color:var(--text-primary);transition:all .3s ease}.app-header{background:var(--card-background);border-bottom:1px solid var(--border-color);padding:20px 0;position:sticky;top:0;z-index:100;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}.header-content{max-width:1200px;margin:0 auto;padding:0 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