.merge-options{background:var(--surface-light);border:1px solid var(--border-light);border-radius:.75rem;overflow:hidden}.files-list-container{border-bottom:1px solid var(--border-light);padding:1.5rem}.files-list-container h3,.merge-settings h3{color:var(--text-primary-light);font-size:1.125rem;font-weight:600;margin-bottom:.5rem;margin-top:0}.files-description{color:var(--text-secondary-light);font-size:.875rem;margin-bottom:1rem;margin-top:0}.files-list{display:flex;flex-direction:column;gap:.75rem;max-height:300px;overflow-y:auto}.file-order-item{align-items:center;background:#fff;border:1px solid var(--border-light);border-radius:.5rem;display:flex;justify-content:space-between;padding:.875rem}.file-order-info{align-items:center;display:flex;gap:.75rem;overflow:hidden}.file-order-number{align-items:center;background:var(--primary-color);border-radius:50%;color:#fff;display:flex;flex-shrink:0;font-size:.75rem;font-weight:600;height:24px;justify-content:center;width:24px}.file-order-details{min-width:0;overflow:hidden}.file-order-name{color:var(--text-primary-light);font-size:.9375rem;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-order-meta{color:var(--text-secondary-light);font-size:.75rem}.file-order-actions{display:flex;flex-shrink:0;gap:.5rem}.order-action-btn{align-items:center;background:var(--surface-light);border:1px solid var(--border-light);border-radius:.375rem;color:var(--text-secondary-light);cursor:pointer;display:flex;height:28px;justify-content:center;padding:0;transition:all .2s ease;width:28px}.order-action-btn:hover:not(:disabled){background:var(--primary-color);border-color:var(--primary-color);color:#fff}.order-action-btn:disabled{cursor:not-allowed;opacity:.5}.merge-settings{border-bottom:1px solid var(--border-light);padding:1.5rem}.option-item{margin-bottom:1.5rem}.option-label{color:var(--text-primary-light);display:block;font-weight:500;margin-bottom:.25rem}.option-description{color:var(--text-secondary-light);font-size:.875rem;margin-bottom:.5rem;margin-top:0}.select-input{-webkit-appearance:none;appearance:none;background:#fff;background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' stroke='%23475569' viewBox='0 0 24 24'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m19 9-7 7-7-7'/%3E%3C/svg%3E");background-position:right .75rem center;background-repeat:no-repeat;background-size:16px;border:1px solid var(--border-light);border-radius:.5rem;color:var(--text-primary-light);font-size:.9375rem;padding:.75rem;width:100%}.checkbox-container{align-items:center;display:flex;gap:.5rem}.checkbox-input{-webkit-appearance:none;appearance:none;border:2px solid var(--border-light);border-radius:4px;cursor:pointer;height:20px;margin:0;position:relative;transition:all .2s ease;width:20px}.checkbox-input:checked{background:var(--primary-color);border-color:var(--primary-color)}.checkbox-input:checked:after{border:solid #fff;border-width:0 2px 2px 0;content:"";height:10px;left:6px;position:absolute;top:2px;transform:rotate(45deg);width:5px}.checkbox-label{color:var(--text-primary-light);cursor:pointer;font-weight:500}.action-buttons{display:flex;gap:1rem;justify-content:space-between;padding:1.5rem}.back-button{align-items:center;background:#0000;border:1px solid var(--border-light);border-radius:.5rem;color:var(--text-secondary-light);cursor:pointer;display:inline-flex;font-weight:500;gap:.5rem;padding:.75rem 1.5rem;transition:all .2s ease}.back-button:hover:not(:disabled){background:var(--background-light);color:var(--text-primary-light)}.process-button{align-items:center;background:var(--primary-color);border:none;border-radius:.5rem;color:#fff;cursor:pointer;display:inline-flex;font-weight:500;gap:.5rem;justify-content:center;min-width:180px;padding:.75rem 1.5rem;transition:all .2s ease}.process-button:hover:not(:disabled){background:var(--primary-dark);transform:translateY(-2px)}.loader{animation:spin 1s linear infinite;border:2px solid #ffffff4d;border-radius:50%;border-top-color:#fff;display:inline-block;height:16px;width:16px}.dark-mode .merge-options{background:var(--surface-dark)}.dark-mode .files-list-container,.dark-mode .merge-options,.dark-mode .merge-settings{border-color:var(--border-dark)}.dark-mode .checkbox-label,.dark-mode .file-order-name,.dark-mode .files-list-container h3,.dark-mode .merge-settings h3,.dark-mode .option-label{color:var(--text-primary-dark)}.dark-mode .file-order-meta,.dark-mode .files-description,.dark-mode .option-description{color:var(--text-secondary-dark)}.dark-mode .file-order-item,.dark-mode .order-action-btn{background:var(--background-dark);border-color:var(--border-dark)}.dark-mode .order-action-btn{color:var(--text-secondary-dark)}.dark-mode .order-action-btn:hover:not(:disabled){background:var(--primary-color);border-color:var(--primary-color);color:#fff}.dark-mode .select-input{background-color:var(--background-dark);background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' stroke='%2394a3b8' viewBox='0 0 24 24'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m19 9-7 7-7-7'/%3E%3C/svg%3E");color:var(--text-primary-dark)}.dark-mode .back-button,.dark-mode .checkbox-input,.dark-mode .select-input{border-color:var(--border-dark)}@media(max-width:768px){.action-buttons,.files-list-container,.merge-settings{padding:1rem}.action-buttons{flex-direction:column}.back-button,.process-button{justify-content:center;width:100%}}.option-info{background:#f8fafc;border:1px solid #e2e8f0;border-radius:.5rem;margin-top:.5rem;padding:.75rem}.option-info p{color:var(--text-secondary-light);font-size:.875rem;margin:0}.option-note{color:#9333ea;font-size:.75rem;font-style:italic;margin-bottom:0;margin-top:.25rem}.dark-mode .option-info{background-color:#1e293b;border-left:3px solid #60a5fa}.dark-mode .option-info p{color:#e2e8f0}.dark-mode .option-note{color:#c084fc}.format-options{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:.75rem}.format-option{align-items:center;background:#fff;border:1px solid var(--border-light);border-radius:.5rem;cursor:pointer;display:flex;gap:.5rem;padding:.625rem .875rem;transition:all .2s ease}.format-option input[type=radio]{-webkit-appearance:none;appearance:none;border:2px solid var(--border-light);border-radius:50%;cursor:pointer;height:18px;margin:0;position:relative;transition:all .2s ease;width:18px}.format-option input[type=radio]:checked{border-color:var(--primary-color)}.format-option input[type=radio]:checked:after{background:var(--primary-color);border-radius:50%;content:"";height:8px;left:3px;position:absolute;top:3px;width:8px}.format-option:hover{background:#f8fafc}.format-option:has(input[type=radio]:checked){background:#f0f7ff;border-color:var(--primary-color)}.format-name{color:var(--text-primary-light);font-size:.875rem;font-weight:500}.dark-mode .format-option{background:var(--surface-dark);border-color:var(--border-dark)}.dark-mode .format-option:hover{background:var(--background-dark)}.dark-mode .format-option:has(input[type=radio]:checked){background:#3b82f626;border-color:var(--primary-color)}.dark-mode .format-name{color:var(--text-primary-dark)}.dark-mode .format-option input[type=radio]{border-color:var(--border-dark)}.split-options{background:var(--surface-light);border:1px solid var(--border-light);border-radius:.75rem;margin:20px auto;max-width:800px;overflow:hidden}.file-info{background-color:#fff;border-bottom:1px solid var(--border-light);border-radius:8px;box-shadow:0 2px 4px #0000000d;margin-bottom:20px;padding:1.5rem}.file-info h3{color:#333;font-size:18px;font-weight:600;margin-bottom:16px;margin-top:0}.file-details{display:flex;flex-direction:column;gap:12px}.detail-item{align-items:baseline;display:flex;flex-direction:row;flex-wrap:wrap;margin-bottom:0}.detail-label{color:#555;flex-shrink:0;font-weight:600;margin-right:5px}.detail-value{color:#333;flex:1;max-width:100%;overflow:hidden;text-overflow:ellipsis;word-break:break-word}.split-settings{background-color:#fff;border-bottom:1px solid var(--border-light);border-radius:8px;box-shadow:0 2px 4px #0000000d;margin-bottom:20px;padding:1.5rem}.split-settings h3{color:#333;font-size:18px;font-weight:600;margin-bottom:16px;margin-top:0}.option-item{margin-bottom:24px}.option-item:last-child{margin-bottom:0}.option-label{align-items:center;color:#333;display:flex;font-weight:600;margin-bottom:4px}.option-description{color:#666;font-size:14px;margin-bottom:8px;margin-top:0}.select-input,.text-input{background-color:#fff;border:1px solid #ddd;border-radius:4px;font-size:14px;padding:10px;width:100%}.select-input:focus,.text-input:focus{border-color:#06f;outline:none}.number-input-container{align-items:center;display:flex;height:40px;position:relative}.number-input{border:1px solid #ddd;border-radius:4px;box-sizing:border-box;font-size:14px;height:40px;padding:10px 60px 10px 10px;width:100%}.number-controls{border-left:1px solid #ddd;bottom:1px;box-sizing:border-box;display:flex;flex-direction:row;overflow:hidden;position:absolute;right:1px;top:1px}.number-control{align-items:center;background-color:#f5f5f5;border:none;cursor:pointer;display:flex;flex:1 1 30px;font-size:16px;font-weight:700;justify-content:center;line-height:1;margin:0;padding:0;-webkit-user-select:none;user-select:none;width:50%}.number-control.up{border-right:1px solid #ddd;border-top-right-radius:3px}.number-control.down{align-items:center;background-color:#f5f5f5;border-bottom-right-radius:3px;color:inherit;display:flex;font-size:16px;justify-content:center}.number-control:hover:not(:disabled){background-color:#e9e9e9}.number-control:disabled{cursor:not-allowed;opacity:.5}.checkbox-container{align-items:center;display:flex;margin-bottom:4px}.checkbox-input{margin-right:8px}.checkbox-label{color:#333;font-weight:600}.action-buttons{display:flex;justify-content:space-between;margin-top:24px}.back-button,.process-button{border:none;border-radius:4px;cursor:pointer;font-size:14px;font-weight:600;padding:10px 20px;transition:all .2s}.back-button{background-color:#f5f5f5;border:1px solid #ddd;color:#333}.back-button:hover:not(:disabled){background-color:#e9e9e9}.process-button{align-items:center;background-color:#06f;color:#fff;display:flex;justify-content:center}.process-button:hover:not(:disabled){background-color:#0052cc}.back-button:disabled,.process-button:disabled{cursor:not-allowed;opacity:.7}.loader{animation:spin 1s linear infinite;border:2px solid #ffffff4d;border-radius:50%;border-top-color:#fff;height:18px;margin-right:8px;width:18px}.dark-mode .split-options{background:var(--surface-dark)}.dark-mode .file-info,.dark-mode .split-options,.dark-mode .split-settings{border-color:var(--border-dark)}.dark-mode .checkbox-label,.dark-mode .detail-value,.dark-mode .file-info h3,.dark-mode .option-label,.dark-mode .split-settings h3{color:var(--text-primary-dark)}.dark-mode .detail-label,.dark-mode .option-description{color:var(--text-secondary-dark)}.dark-mode .number-input,.dark-mode .select-input,.dark-mode .text-input{background-color:var(--background-dark);border-color:var(--border-dark);color:var(--text-primary-dark)}.dark-mode .select-input{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' stroke='%2394a3b8' viewBox='0 0 24 24'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m19 9-7 7-7-7'/%3E%3C/svg%3E")}.dark-mode .number-control{background:var(--background-dark);color:var(--text-primary-dark)}.dark-mode .back-button,.dark-mode .checkbox-input,.dark-mode .number-control{border-color:var(--border-dark)}.dark-mode .back-button{color:var(--text-secondary-dark)}.dark-mode .back-button:hover:not(:disabled){background:var(--background-dark);color:var(--text-primary-dark)}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(1turn)}}@media(max-width:768px){.action-buttons,.file-info,.split-settings{padding:1rem}.action-buttons{flex-direction:column}.back-button,.process-button{justify-content:center;width:100%}}.help-icon{color:#777;cursor:help;display:inline-flex;margin-left:6px}.help-icon:hover{color:#06f}.tooltip{background-color:#333;border-radius:4px;box-shadow:0 2px 10px #0003;color:#fff;font-size:13px;margin-top:5px;max-width:300px;padding:8px 12px;position:absolute;z-index:100}.tooltip p{margin:5px 0}.tooltip strong{font-weight:600}.custom-ranges-container{background-color:#f9f9f9;border:1px solid #ddd;border-radius:4px;padding:12px}.custom-range-item{align-items:center;display:flex;margin-bottom:10px}.range-inputs{align-items:center;display:flex;flex:1}.range-input{flex:1}.range-input label{color:#555;display:block;font-size:12px;margin-bottom:2px}.range-input input{border:1px solid #ddd;border-radius:4px;font-size:14px;padding:8px;width:100%}.range-separator{color:#555;font-weight:600;margin:16px 8px 0}.remove-range-btn{align-items:center;background:none;border:none;border-radius:50%;color:#f44336;cursor:pointer;display:flex;justify-content:center;margin-left:8px;padding:5px}.remove-range-btn:hover:not(:disabled){background-color:#f443361a}.remove-range-btn:disabled{color:#ccc;cursor:not-allowed}.add-range-btn{align-items:center;background-color:#06f;border:none;border-radius:4px;color:#fff;cursor:pointer;display:flex;font-size:14px;gap:5px;padding:8px 12px;width:-webkit-fit-content;width:fit-content}.add-range-btn:hover:not(:disabled){background-color:#0052cc}.add-range-btn:disabled{cursor:not-allowed;opacity:.7}.size-input-container{align-items:center;display:flex;gap:10px}.unit-toggle{border:1px solid #ddd;border-radius:4px;display:flex;overflow:hidden}.unit-button{background:#f5f5f5;border:none;cursor:pointer;font-size:14px;min-width:40px;padding:8px 12px;transition:all .2s}.unit-button.active{background:#06f;color:#fff}.unit-button:hover:not(:disabled):not(.active){background:#e0e0e0}.unit-button:disabled{cursor:not-allowed;opacity:.5}.parts-estimate{color:#666;font-size:13px;font-style:italic;margin-top:8px}.dark-mode .unit-button{background:#2c2c2c;color:#e0e0e0}.dark-mode .unit-button.active{background:#06f;color:#fff}.dark-mode .unit-button:hover:not(:disabled):not(.active){background:#3c3c3c}.dark-mode .parts-estimate{color:#aaa}.dark-mode .number-control.down{color:#fff}:root{--tool-bg-color:#f8f9fa;--tool-surface-color:#fff;--tool-surface-hover:#f8f9fa;--tool-border-color:#dadce0;--tool-primary-color:#1a73e8;--tool-primary-light:#e8f0fe;--tool-text-primary:#202124;--tool-text-secondary:#5f6368;--tool-text-tertiary:#80868b;--tool-shadow-sm:0 1px 2px 0 #3c40434d,0 1px 3px 1px #3c404326;--tool-shadow-md:0 1px 3px 0 #3c40434d,0 4px 8px 3px #3c404326;--tool-radius:12px}.tool-info-strip{border-top:1px solid var(--tool-border-color);display:grid;gap:24px;grid-template-columns:repeat(3,1fr);margin-top:48px;padding-top:48px}@media(max-width:900px){.tool-info-strip{gap:20px;grid-template-columns:1fr}}.info-strip-section{background:var(--tool-surface-color);border:1px solid var(--tool-border-color);border-radius:var(--tool-radius);padding:24px;text-align:left}.info-strip-section h3{align-items:center;color:var(--tool-text-primary);display:flex;font-size:1.125rem;font-weight:500;gap:8px;margin:0 0 16px}.info-strip-section li,.info-strip-section p{color:var(--tool-text-secondary);font-size:.9375rem;line-height:1.6;margin:0}.info-strip-section.privacy{background:#f0fdf4;border-color:#bbf7d0}.info-strip-section.privacy h3{color:#166534}.tool-page-wrapper{background:var(--tool-bg-color);color:var(--tool-text-primary);font-family:var(--font-family,"Inter",sans-serif);margin:0 auto;max-width:100%;min-height:100vh;padding:0}.tool-header-clean{background:linear-gradient(180deg,var(--tool-surface-color) 0,var(--tool-bg-color) 100%);border-bottom:1px solid var(--tool-border-color);padding:48px 24px 40px;text-align:center}.tool-header-content{align-items:center;display:flex;flex-direction:column;margin:0 auto;max-width:800px}.tool-icon-badge{align-items:center;background:var(--tool-primary-light);border-radius:50%;color:var(--tool-primary-color);display:inline-flex;height:72px;justify-content:center;margin-bottom:20px;width:72px}.tool-header-clean h1{color:var(--tool-text-primary);font-size:2.25rem;font-weight:400;letter-spacing:-.5px;margin:0 0 16px}.tool-subtitle{color:var(--tool-text-secondary);font-size:1.125rem;line-height:1.7;margin:0 auto;max-width:680px}.tool-trust-tags-center{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:16px}.tool-container-clean{margin:0 auto;max-width:1200px;padding:40px 24px}.tool-layout-with-sidebar{align-items:stretch;display:flex;flex-direction:column;gap:32px}.tool-main-content{flex:1;min-width:0}.tool-guide-sidebar{display:flex;flex-direction:column;flex-shrink:0;gap:24px;margin-top:32px;position:static;width:100%}@media(min-width:1024px){.tool-layout-with-sidebar{align-items:flex-start;flex-direction:row}.tool-guide-sidebar{margin-top:0;position:-webkit-sticky;position:sticky;top:24px;width:320px}}.sidebar-section-clean{background:var(--tool-surface-color);border:1px solid var(--tool-border-color);border-radius:var(--tool-radius);box-shadow:var(--tool-shadow-sm);display:flex;flex-direction:column;padding:24px;text-align:left}.sidebar-section-clean h3{color:var(--tool-text-primary);font-size:1.125rem;font-weight:500;margin:0 0 16px}.sidebar-section-clean p{color:var(--tool-text-secondary);font-size:.9375rem;line-height:1.6;margin:0}.guide-list-clean{display:flex;flex-direction:column;gap:12px;list-style:none;margin:0;padding:0}.guide-list-clean li{align-items:flex-start;color:var(--tool-text-secondary);display:flex;font-size:.875rem;gap:10px;line-height:1.4;text-align:left}.guide-list-clean li:before{color:var(--tool-primary-color);content:"•";font-weight:700}.security-spotlight{background:#e6fffa;border:1px solid #38b2ac;border-left-width:4px}.security-spotlight h3{color:#2c7a7b!important}.sidebar-badges{display:flex;flex-direction:column;gap:10px;margin-top:16px}.stage-header-barcode,.stage-header-bg,.stage-header-clean{align-items:center;border-bottom:1px solid var(--tool-border-color);display:flex;gap:16px;margin-bottom:24px;padding-bottom:20px}.stage-number{align-items:center;background:var(--tool-primary-color);border-radius:50%;color:#fff;display:flex;font-size:1.5rem;font-weight:600;height:48px;justify-content:center;min-width:48px;width:48px}.stage-info h2{color:var(--tool-text-primary);font-size:1.375rem;font-weight:400;margin:0 0 4px;text-align:left}.stage-info p{color:var(--tool-text-secondary);font-size:.9375rem;margin:0;text-align:left}.btn-primary-tool,.extract-btn,.generate-btn,.process-btn,.scan-btn{align-items:center;background:var(--tool-primary-color);border:none;border-radius:4px;color:#fff;cursor:pointer;display:inline-flex;font-family:inherit;font-size:.9375rem;font-weight:500;gap:8px;justify-content:center;padding:12px 24px;transition:all .2s}.btn-primary-tool:hover,.extract-btn:hover:not(:disabled),.generate-btn:hover:not(:disabled),.process-btn:hover:not(:disabled),.scan-btn:hover:not(:disabled){background:#1557b0;box-shadow:var(--tool-shadow-md)}.btn-primary-tool:disabled,.extract-btn:disabled,.generate-btn:disabled,.process-btn:disabled,.scan-btn:disabled{background:var(--tool-border-color);box-shadow:none;color:var(--tool-text-tertiary);cursor:not-allowed}.btn-secondary-tool,.reset-btn,.reset-btn-bg,.reset-btn-clean,.reset-btn-ocr{align-items:center;background:var(--tool-surface-color);border:1px solid var(--tool-border-color);border-radius:4px;color:var(--tool-text-secondary);cursor:pointer;display:inline-flex;font-family:inherit;font-size:.9375rem;font-weight:500;gap:8px;justify-content:center;padding:12px 24px;transition:all .2s}.btn-secondary-tool:hover,.reset-btn-bg:hover,.reset-btn-ocr:hover,.reset-btn:hover{background:var(--tool-surface-hover)}.faq-section-tool,.features-section-tool,.how-it-works-tool,.related-tools-section,.use-cases-tool-section{padding:64px 0}.features-section-tool{background:var(--tool-surface-hover)}.how-it-works-tool{background:var(--tool-surface-color)}.use-cases-tool-section{background:var(--tool-surface-hover)}.faq-section-tool{background:var(--tool-surface-color)}.related-tools-section{background:var(--tool-surface-hover)}.faq-container-tool,.features-container-tool,.how-container-tool,.related-container-tool,.use-cases-container-tool{margin:0 auto;max-width:1000px;padding:0 24px;text-align:center}.faq-section-tool h2,.features-section-tool h2,.how-it-works-tool h2,.related-tools-section h2,.use-cases-tool-section h2{color:var(--tool-text-primary);font-size:1.75rem;font-weight:400;margin:0 0 12px}.section-description-tool{color:var(--tool-text-secondary);font-size:1rem;line-height:1.7;margin:0 auto 40px;max-width:680px}.features-grid-tool,.related-tools-grid,.steps-grid-tool,.use-cases-grid-tool{display:grid;gap:20px;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));text-align:left}.steps-grid-tool{gap:32px;text-align:center}.faq-item-tool,.feature-card-tool,.use-case-item-tool{background:var(--tool-surface-color);border:1px solid var(--tool-border-color);border-radius:var(--tool-radius);box-shadow:var(--tool-shadow-sm);padding:24px}.feature-card-tool svg{color:var(--tool-primary-color);margin-bottom:16px}.faq-item-tool h3,.feature-card-tool h3,.step-item-tool h3,.use-case-item-tool h3{color:var(--tool-text-primary);font-size:1.125rem;font-weight:500;margin:0 0 12px}.faq-item-tool p,.feature-card-tool p,.step-item-tool p,.use-case-item-tool p{color:var(--tool-text-secondary);font-size:.875rem;line-height:1.6;margin:0}.step-item-tool{padding:24px}.step-number-tool{align-items:center;background:var(--tool-primary-color);border-radius:50%;color:#fff;display:inline-flex;font-size:1.5rem;font-weight:600;height:56px;justify-content:center;margin-bottom:20px;width:56px}.faq-list-tool{display:flex;flex-direction:column;gap:20px;margin-bottom:32px}.faq-item-tool{background:var(--tool-surface-hover);text-align:left}.faq-item-tool h3{font-size:1rem}.faq-item-tool p{font-size:.9375rem;line-height:1.7}.faq-cta-tool{border-top:1px solid var(--tool-border-color);padding-top:24px;text-align:center}.faq-cta-tool p{color:var(--tool-text-secondary);font-size:.9375rem;margin:0 0 12px}.faq-link-tool{align-items:center;color:var(--tool-primary-color);display:inline-flex;font-size:.9375rem;font-weight:500;gap:6px;text-decoration:none;transition:gap .2s}.faq-link-tool:hover{gap:10px;text-decoration:underline}.related-tools-grid{display:grid;gap:20px;grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}.related-tool-card{background:var(--tool-surface-color);border:1px solid var(--tool-border-color);border-radius:var(--tool-radius);box-shadow:var(--tool-shadow-sm);color:inherit;display:flex;flex-direction:column;padding:24px;text-decoration:none;transition:all .2s}.related-tool-card:hover{border-color:var(--tool-primary-color);box-shadow:var(--tool-shadow-md);transform:translateY(-4px)}.related-tool-icon{align-items:center;background:var(--tool-primary-light);border-radius:var(--tool-radius);color:var(--tool-primary-color);display:inline-flex;height:48px;justify-content:center;margin-bottom:16px;width:48px}.related-tool-card h3{color:var(--tool-text-primary);font-size:1.125rem;font-weight:500;margin:0 0 12px}.related-tool-card p{color:var(--tool-text-secondary);flex:1;font-size:.875rem;line-height:1.6;margin:0 0 16px}.tool-link-arrow{align-items:center;color:var(--tool-primary-color);display:inline-flex;font-size:.875rem;font-weight:500;gap:4px;transition:gap .2s}.related-tool-card:hover .tool-link-arrow{gap:8px}@media(max-width:768px){.tool-header-clean{padding:40px 16px 32px}.tool-header-clean h1{font-size:1.75rem}.tool-subtitle{font-size:1rem}.tool-container-clean{padding:24px 16px}.tool-layout-with-sidebar{flex-direction:column}.tool-guide-sidebar{position:static;width:100%}}.bouncing-loader{align-items:center;display:flex;gap:6px;height:20px;justify-content:center}.bouncing-loader>div{animation:bounce 1.4s ease-in-out infinite both;background-color:#fff;border-radius:50%;height:10px;width:10px}.bouncing-loader>div:first-child{animation-delay:-.32s}.bouncing-loader>div:nth-child(2){animation-delay:-.16s}@keyframes bounce{0%,80%,to{transform:scale(0)}40%{transform:scale(1)}}.merge-split-page-clean{background:#f8f9fa}.mode-selection-section{background:var(--color-surface);padding:40px 0}.mode-container{margin:0 auto;max-width:800px;padding:0 24px}.mode-heading{color:var(--color-text-primary);font-size:1.375rem;font-weight:400;margin:0 0 24px;text-align:center}.mode-tabs{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}.mode-tab{align-items:center;background:var(--color-surface);border:2px solid var(--color-border);border-radius:var(--radius-md);cursor:pointer;display:flex;font-family:inherit;gap:16px;padding:24px;text-align:left;transition:all .2s}.mode-tab:hover{box-shadow:var(--shadow-sm)}.mode-tab.active,.mode-tab:hover{border-color:var(--color-primary)}.mode-tab.active{background:var(--color-primary-light)}.mode-tab svg{color:var(--color-primary);flex-shrink:0}.mode-tab strong{color:var(--color-text-primary);display:block;font-size:1.125rem;font-weight:500;margin-bottom:4px}.mode-tab span{color:var(--color-text-secondary);display:block;font-size:.875rem}@media(max-width:768px){.mode-tabs{grid-template-columns:1fr}}@media(max-width:480px){.mode-heading{font-size:1.125rem}.mode-tab{flex-direction:column;text-align:center}}.mode-tab:focus{outline:2px solid var(--color-primary);outline-offset:2px}@media(prefers-reduced-motion:reduce){.mode-tab{transition:none}}