@import "https://fonts.googleapis.com/css2?family=Archivo:wght@600;700;800&family=IBM+Plex+Mono:wght@400;500;600&family=IBM+Plex+Sans:wght@400;450;500;600&display=swap";:root{--font-sans:"IBM Plex Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--font-display:"Archivo", "IBM Plex Sans", system-ui, sans-serif;--font-mono:"IBM Plex Mono", ui-monospace, "SFMono-Regular", monospace;--bg-primary:#f1f1ec;--bg-card:#fbfbf9;--bg-card-alt:#f1f1ec;--text-primary:#14171a;--text-secondary:#565b61;--text-muted:#6b7278;--brand-blue:#0a6e90;--brand-blue-hover:#085974;--brand-blue-light:#e7f0f3;--border-hairline:#e4e3dd;--border-rule:#c7c6be;--danger:#bc3a22;--danger-hover:#93331f;--success:#2e7d32;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:20px;--space-6:24px;--space-8:32px;--space-10:40px;--space-12:48px;--space-16:64px;--text-page-title:2.75rem;--text-section-title:1.5rem;--text-body:1rem;--text-label:.875rem;--text-caption:.75rem;--focus-ring-color:var(--brand-blue);--focus-ring-width:2px;--focus-ring-offset:2px;--control-min:44px;--lavender-tint:#e3e8fc;--orange-tint:#fef3c7;--orange-icon:#d97706;--blue-icon:#1d4ed8;--radius-sm:3px;--radius-md:6px;--radius-lg:10px;--radius-xl:14px;--transition-fast:.2s cubic-bezier(.4, 0, .2, 1);--transition-normal:.3s cubic-bezier(.4, 0, .2, 1);--transition-slow:.5s cubic-bezier(.4, 0, .2, 1);--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #0000000d, 0 2px 4px -2px #0000000d;--shadow-lg:0 10px 15px -3px #0000000d, 0 4px 6px -4px #0000000d;--shadow-xl:0 20px 25px -5px #00000014, 0 8px 10px -6px #00000014}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.5;overflow-x:hidden}a{color:inherit;text-decoration:none}h1,h2,h3,h4{font-family:var(--font-display);letter-spacing:-.02em}button{cursor:pointer;background:0 0;border:none;font-family:inherit}:where(a,button,input,textarea,select,summary,[tabindex]):focus-visible{outline:var(--focus-ring-width) solid var(--focus-ring-color);outline-offset:var(--focus-ring-offset);border-radius:inherit}@media (pointer:coarse){button,a[role=button],input[type=checkbox],input[type=radio],[role=button],[role=tab]{min-height:var(--control-min);min-width:var(--control-min)}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}.text-h1{font-family:var(--font-display);letter-spacing:-.035em;color:var(--text-primary);font-size:clamp(2.5rem,6vw,4rem);font-weight:800;line-height:1.05}.text-subtitle{color:var(--text-secondary);max-width:600px;margin:0 auto;font-size:1.125rem;line-height:1.6}#root{min-height:100vh}.app-container{flex-direction:column;min-height:100vh;display:flex}.container-width{width:100%;max-width:1080px;margin:0 auto;padding:0 24px}.header{border-bottom:1px solid var(--border-hairline);background-color:color-mix(in srgb, var(--bg-card) 88%, transparent);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:100;justify-content:space-between;align-items:center;height:72px;display:flex;position:sticky;top:0}.header-inner{justify-content:space-between;align-items:center;width:100%;display:flex}.logo{align-items:center;gap:var(--space-3);font-family:var(--font-display);letter-spacing:-.02em;color:var(--text-primary);font-size:1.15rem;font-weight:800;display:flex}.logo-mark{color:var(--brand-blue);display:flex}.nav-links{align-items:center;gap:var(--space-6);color:var(--text-secondary);font-size:.875rem;font-weight:500;display:flex}.ondevice-tag{align-items:center;gap:var(--space-2);font-family:var(--font-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--brand-blue);border:1px solid var(--brand-blue);padding:5px var(--space-2);border-radius:999px;font-size:.68rem;display:inline-flex}.ondevice-dot{background:var(--brand-blue);border-radius:50%;flex:none;width:6px;height:6px}.nav-link{transition:var(--transition-fast);padding:6px 0;position:relative}.nav-link:hover{color:var(--text-primary)}.nav-link.active{color:var(--brand-blue)}.nav-link.active:after{content:"";background-color:var(--brand-blue);border-radius:1px;height:2px;position:absolute;bottom:0;left:0;right:0}.header-actions{align-items:center;gap:24px;display:flex}.btn-signin{color:var(--text-secondary);transition:var(--transition-fast);font-size:.875rem;font-weight:500}.btn-signin:hover{color:var(--text-primary)}.btn-primary{background-color:var(--brand-blue);color:#fff;min-height:var(--control-min);justify-content:center;align-items:center;gap:var(--space-2);border-radius:var(--radius-sm);box-shadow:var(--shadow-sm);transition:var(--transition-fast);padding:10px 20px;font-size:.875rem;font-weight:600;display:inline-flex}.btn-primary:hover{background-color:var(--brand-blue-hover)}.btn-primary:active{background-color:var(--brand-blue-hover);filter:brightness(.92)}.hero{padding:var(--space-16) 0 var(--space-10);text-align:center;flex-direction:column;align-items:center;display:flex}.hero-eyebrow{align-items:center;gap:var(--space-3);font-family:var(--font-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--text-muted);margin-bottom:var(--space-5);font-size:.72rem;font-weight:500;display:inline-flex}.hero-eyebrow:before,.hero-eyebrow:after{content:"";background:var(--border-rule);width:28px;height:1px}.hero-title{margin-bottom:var(--space-4)}.hero-accent{color:var(--brand-blue);position:relative}.hero-accent:after{content:"";background:var(--brand-blue);opacity:.35;height:2px;position:absolute;bottom:.06em;left:0;right:0}.hero-subtitle{margin-bottom:var(--space-8)}.upload-container{width:100%;max-width:640px;margin:0 auto}.upload-dropzone{background:var(--bg-card);border:1.5px dashed var(--border-rule);border-radius:var(--radius-md);text-align:center;cursor:pointer;transition:var(--transition-normal);box-shadow:var(--shadow-sm);flex-direction:column;align-items:center;padding:48px 32px;display:flex;position:relative}.upload-dropzone:hover,.upload-dropzone.drag-active{border-color:var(--brand-blue);background-color:var(--bg-card)}.upload-dropzone:before,.upload-dropzone:after{content:"";border:0 solid var(--border-rule);pointer-events:none;width:14px;height:14px;transition:border-color 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.upload-icon-wrapper{background-color:var(--brand-blue);color:#fff}.upload-text{color:var(--text-primary);margin-bottom:4px;font-size:1.125rem;font-weight:600}.upload-subtext{color:var(--text-secondary);margin-bottom:24px;font-size:.875rem}.upload-button{background-color:var(--brand-blue);color:#fff;min-height:var(--control-min);border-radius:var(--radius-sm);justify-content:center;align-items:center;gap:var(--space-2);transition:var(--transition-fast);box-shadow:var(--shadow-sm);padding:12px 28px;font-size:.9375rem;font-weight:600;display:flex}.upload-button:hover{background-color:var(--brand-blue-hover);box-shadow:var(--shadow-md);transform:translateY(-1px)}.upload-limits{margin-top:var(--space-4);padding-top:var(--space-3);border-top:1px solid var(--border-hairline);letter-spacing:.06em;text-transform:uppercase;font-size:.72rem;font-family:var(--font-mono);color:var(--text-muted)}.upload-limits-error{color:var(--danger);border-top-color:var(--danger);text-transform:none;letter-spacing:.02em}.file-input-hidden{display:none}.badges-container{flex-wrap:wrap;justify-content:center;gap:32px;margin-top:40px;display:flex}.badge-item{color:var(--text-secondary);align-items:center;gap:8px;font-size:.8125rem;font-weight:500;display:flex}.badge-icon{color:var(--text-muted)}.section-header{text-align:center;padding:80px 0 40px}.section-title{letter-spacing:-.02em;color:#0f172a;margin-bottom:12px;font-size:2.25rem;font-weight:800}.section-subtitle{color:var(--text-secondary);font-size:1.0625rem}.bento-grid{grid-template-columns:1.4fr 1fr;gap:24px;margin-bottom:24px;display:grid}.bento-row-reverse{grid-template-columns:1fr 1.4fr}.bento-card{background-color:var(--bg-card);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);transition:transform var(--transition-normal), box-shadow var(--transition-normal);border:1px solid #e2e8f080;flex-direction:column;justify-content:space-between;padding:40px;display:flex;position:relative;overflow:hidden}.bento-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}.bento-card-wide{flex-direction:row;align-items:center;gap:32px}.bento-card-wide-content{flex-direction:column;flex:1.1;justify-content:center;display:flex}.bento-card-wide-graphic{background-color:var(--lavender-tint);border-radius:var(--radius-md);flex:.9;justify-content:center;align-items:center;height:180px;display:flex;position:relative;overflow:hidden}.bento-card-wide-graphic 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40px;display:flex}.cta-title{letter-spacing:-.02em;color:#0f172a;margin-bottom:12px;font-size:2.25rem;font-weight:800}.cta-subtitle{color:var(--text-secondary);max-width:500px;margin-bottom:32px;font-size:1.0625rem}.cta-buttons{gap:16px;display:flex}.btn-secondary{background-color:var(--bg-card-alt);color:var(--text-primary);border-radius:var(--radius-sm);transition:var(--transition-fast);padding:12px 28px;font-size:.9375rem;font-weight:600}.btn-secondary:hover{background-color:#e2e8f0;transform:translateY(-1px)}.footer{background-color:var(--bg-card);border-top:1px solid #e2e8f0cc;margin-top:auto;padding:64px 0 40px}.footer-inner{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:24px;display:flex}.footer-logo{align-items:center;gap:var(--space-3);font-family:var(--font-display);letter-spacing:-.02em;color:var(--text-primary);font-size:1.05rem;font-weight:800;display:flex}.footer-links{color:var(--text-secondary);gap:24px;font-size:.8125rem;display:flex}.footer-link:hover{color:var(--text-primary)}.footer-copyright{color:var(--text-muted);font-size:.8125rem}.modal-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:1000;background-color:#0f172a66;justify-content:center;align-items:center;animation:.25s ease-out fadeIn;display:flex;position:fixed;inset:0}.modal-content{border-radius:var(--radius-lg);width:90%;max-width:440px;box-shadow:var(--shadow-xl);text-align:center;background-color:#fff;padding:40px;animation:.3s cubic-bezier(.34,1.56,.64,1) 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80px);display:flex}.splitter-header{z-index:90;box-shadow:var(--shadow-sm);background-color:#fff;border-bottom:1px solid #e2e8f0;padding:16px 0;position:sticky;top:80px}.splitter-header-inner{justify-content:space-between;align-items:center;display:flex}.splitter-back-btn{color:var(--text-secondary);transition:var(--transition-fast);border-radius:var(--radius-sm);align-items:center;gap:8px;padding:8px 12px;font-size:.875rem;font-weight:600;display:flex}.splitter-back-btn:hover{background-color:var(--bg-primary);color:var(--text-primary)}.splitter-file-details{align-items:center;gap:12px;display:flex}.splitter-file-icon{color:#ef4444;background-color:#fee2e2;border-radius:8px;padding:8px}.splitter-file-title{color:#0f172a;font-size:.9375rem;font-weight:600}.splitter-file-meta{color:var(--text-secondary);font-size:.75rem}.splitter-body{flex:1;grid-template-columns:1fr 320px;display:grid;position:relative}.splitter-main{padding:40px;overflow-y:auto}.splitter-pages-grid{grid-template-columns:repeat(auto-fill,minmax(140px,1fr));justify-items:center;gap:32px;display:grid}.page-tile-container{flex-direction:column;align-items:center;width:100%;max-width:150px;display:flex;position:relative}.page-card{aspect-ratio:1/1.414;width:100%;box-shadow:var(--shadow-sm);cursor:pointer;transition:var(--transition-normal);-webkit-user-select:none;user-select:none;background-color:#fff;border:1px solid #cbd5e1;border-radius:8px;flex-direction:column;justify-content:center;align-items:center;padding:12px;display:flex;position:relative;overflow:hidden}.page-card:hover{border-color:var(--brand-blue);box-shadow:var(--shadow-md);transform:translateY(-2px)}.page-card.split-next{border-bottom:4px solid #ef4444}.page-number-badge{background-color:var(--bg-primary);color:var(--text-primary);border:1px solid #e2e8f0;border-radius:4px;margin-top:10px;padding:4px 8px;font-size:.75rem;font-weight:600}.page-card-icon{color:var(--text-muted);transition:var(--transition-fast);margin-bottom:8px}.page-card:hover .page-card-icon{color:var(--brand-blue);transform:scale(1.1)}.split-connector{z-index:10;justify-content:center;align-items:center;width:16px;display:flex;position:absolute;top:0;bottom:0;right:-24px}.split-cutline-trigger{cursor:pointer;width:4px;height:80%;transition:var(--transition-fast);background-color:#0000;border-radius:2px;position:relative}.split-connector:hover .split-cutline-trigger,.split-connector.active .split-cutline-trigger{background-color:#fca5a5;width:6px}.split-connector.active .split-cutline-trigger{background-color:#ef4444}.split-icon-indicator{color:#fff;width:24px;height:24px;transition:transform 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#e2e8f0;flex-direction:column;gap:4px;padding:14px;display:flex}.part-card:hover{border-color:#cbd5e1}.part-title{color:#0f172a;font-size:.875rem;font-weight:600}.part-meta{color:var(--text-secondary);font-size:.75rem}.btn-split-action{width:100%;margin-top:auto;padding:14px;font-size:.9375rem;font-weight:700}.toast-msg{color:#fff;box-shadow:var(--shadow-lg);z-index:1000;background-color:#0f172a;border-radius:8px;padding:12px 24px;font-size:.875rem;font-weight:500;animation:.3s ease-out slideUp;position:fixed;bottom:24px;right:24px}@keyframes slideUp{0%{opacity:0;transform:translateY(100px)}to{opacity:1;transform:translateY(0)}}@media (width<=1024px){.bento-grid,.bento-row-reverse{grid-template-columns:1fr}.bento-card-wide{flex-direction:column;align-items:flex-start}.bento-card-wide-graphic{width:100%;height:140px}.bento-device-mockup{width:100%;height:120px;margin-top:16px;position:relative;bottom:auto;right:auto;transform:none!important}}@media (width<=768px){.text-h1{font-size:2.25rem}.header{height:70px}.nav-links{display:none}.splitter-body{grid-template-columns:1fr}.splitter-sidebar{border-top:1px solid #e2e8f0;border-left:none;height:auto;position:static}.hero{padding:40px 0}.cta-card{padding:40px 24px}}.page-thumb{background-color:#fff;border-radius:7px;justify-content:center;align-items:center;display:flex;position:absolute;inset:1px;overflow:hidden}.page-thumb img{object-fit:contain;-webkit-user-select:none;user-select:none;pointer-events:none;width:100%;height:100%}.page-card .page-number-badge{z-index:2;box-shadow:var(--shadow-sm);white-space:nowrap;margin-top:0;position:absolute;bottom:8px;left:50%;transform:translate(-50%)}.part-name-row{align-items:center;gap:2px;display:flex}.part-name-input{color:#0f172a;min-width:0;transition:var(--transition-fast);background-color:#f8fafc;border:1px solid #e2e8f0;border-radius:4px;flex:1;padding:4px 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.edit-size-select{max-width:200px}.agg-grid{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:8px;display:grid}.agg-row{background-color:#fff;border:1px solid #e2e8f0;border-radius:8px;align-items:center;gap:10px;padding:6px 10px;display:flex}.agg-row .edit-size-select{min-width:104px}.sheet-preview th.num,.sheet-preview td.num{text-align:right}.sheet-preview tbody tr.group-total td{color:var(--brand-blue);background-color:#eff6ff;font-weight:700}.metric-actions{flex-wrap:wrap;gap:8px;display:flex}.metric-suggestions{flex-wrap:wrap;align-items:center;gap:8px;margin-top:4px;display:flex}.metric-suggest-label{color:var(--text-secondary);font-size:.75rem;font-weight:700}.tool-field-full{flex-basis:100%!important;width:100%!important}.theme-picker-grid{grid-template-columns:repeat(6,1fr);gap:10px;width:100%;margin-top:8px;display:grid}@media (width<=900px){.theme-picker-grid{grid-template-columns:repeat(3,1fr)}}@media (width<=500px){.theme-picker-grid{grid-template-columns:repeat(2,1fr)}}.theme-card{cursor:pointer;text-align:center;background-color:#fff;border:1px solid #cbd5e1;border-radius:10px;flex-direction:column;align-items:center;gap:6px;padding:12px 10px;transition:all .2s cubic-bezier(.4,0,.2,1);display:flex}.theme-card:hover{border-color:var(--brand-blue);transform:translateY(-2px);box-shadow:0 4px 12px #0a6e901f}.theme-card.active{border-color:var(--brand-blue);box-shadow:0 0 0 2px var(--brand-blue);background-color:#eff6ff}.theme-card-icon{font-size:1.4rem}.theme-card-title{color:var(--text-primary);font-size:.8125rem;font-weight:700}.theme-card-preview{border-radius:3px;width:80%;height:5px;margin-top:2px}.modal-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background-color:#0f172a73}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:#f1f5f9;border-radius:3px}::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#94a3b8}.ocr-prompt{color:#475569;text-align:center;background-color:#fff;border:1px solid #e2e8f0;border-radius:12px;flex-direction:column;align-items:center;gap:12px;margin-bottom:12px;padding:24px;font-size:.9375rem;font-weight:600;display:flex}.ocr-btn{align-items:center;gap:8px;padding:10px 22px;display:inline-flex}.ocr-prompt-note{color:var(--text-muted);font-size:.75rem;font-weight:500}.handoff-bar{z-index:90;align-items:center;gap:var(--space-5);padding:var(--space-3) var(--space-5);background:var(--bg-card);border-top:1.5px solid var(--border-rule);animation:handoff-rise var(--transition-normal);flex-wrap:wrap;display:flex;position:fixed;bottom:0;left:0;right:0;box-shadow:0 -8px 24px -16px #14171a59}@keyframes handoff-rise{0%{transform:translateY(100%)}to{transform:translateY(0)}}.handoff-msg{align-items:center;gap:var(--space-2);color:var(--text-secondary);font-size:.875rem;display:inline-flex}.handoff-msg b{font-family:var(--font-mono);color:var(--text-primary);font-weight:500}.handoff-check{color:var(--success);flex:none}.handoff-chips{align-items:center;gap:var(--space-2);flex-wrap:wrap;display:flex}.handoff-chip{font-family:var(--font-sans);color:var(--text-primary);background:var(--bg-card);border:1px solid var(--border-rule);border-radius:var(--radius-sm);padding:6px var(--space-3);transition:color var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);font-size:.8rem;font-weight:500}.handoff-chip:hover{color:var(--brand-blue);border-color:var(--brand-blue);background:var(--brand-blue-light)}.handoff-close{color:var(--text-muted);border-radius:var(--radius-sm);justify-content:center;align-items:center;margin-left:auto;padding:4px;display:inline-flex}.handoff-close:hover{color:var(--text-primary);background:var(--bg-card-alt)}@media (width<=640px){.handoff-bar{gap:var(--space-3)}.handoff-msg{flex-basis:100%}}.legal-page{gap:var(--space-4);max-width:760px;padding-top:var(--space-8);padding-bottom:var(--space-12);flex-direction:column;display:flex}.legal-title{font-family:var(--font-display);letter-spacing:-.02em;color:var(--text-primary);font-size:2rem;font-weight:800}.legal-updated{font-family:var(--font-mono);color:var(--text-muted);font-size:.8rem}.legal-intro{color:var(--text-primary);max-width:68ch;font-size:1.05rem;line-height:1.7}.legal-section h2{font-family:var(--font-display);color:var(--text-primary);margin:var(--space-6) 0 var(--space-3);font-size:1.2rem;font-weight:700}.legal-section p{color:var(--text-secondary);max-width:68ch;margin-bottom:var(--space-3);font-size:.95rem;line-height:1.7}.guide-page{gap:var(--space-4);max-width:760px;padding-top:var(--space-8);padding-bottom:var(--space-12);flex-direction:column;display:flex}.guide-title{font-family:var(--font-display);letter-spacing:-.025em;color:var(--text-primary);font-size:clamp(1.7rem,4vw,2.4rem);font-weight:800;line-height:1.1}.guide-updated{font-family:var(--font-mono);color:var(--text-muted);font-size:.78rem}.guide-answer{color:var(--text-primary);padding-left:var(--space-4);border-left:3px solid var(--brand-blue);max-width:68ch;font-size:1.1rem;line-height:1.65}.guide-intro{color:var(--text-secondary);max-width:68ch;font-size:1.02rem;line-height:1.7}.guide-section h2{font-family:var(--font-display);color:var(--text-primary);margin:var(--space-6) 0 var(--space-3);font-size:1.3rem;font-weight:700}.guide-section p{color:var(--text-secondary);max-width:68ch;margin-bottom:var(--space-3);font-size:.98rem;line-height:1.7}.guide-steps{gap:var(--space-2);color:var(--text-secondary);flex-direction:column;padding-left:20px;line-height:1.6;display:flex}.guide-table-wrap{margin:var(--space-4) 0;overflow-x:auto}.guide-table{border-collapse:collapse;width:100%;font-size:.9rem}.guide-table th,.guide-table td{border:1px solid var(--border-hairline);padding:var(--space-3);text-align:left;vertical-align:top}.guide-table thead th{background:var(--bg-card-alt);color:var(--text-primary);font-weight:700}.guide-table tbody th[scope=row]{background:var(--bg-card);color:var(--text-primary);font-weight:600}.guide-links{margin:var(--space-4) 0}.guide-links ul{gap:var(--space-2);margin-top:var(--space-2);flex-wrap:wrap;padding:0;list-style:none;display:flex}.guide-links a{padding:6px var(--space-3);border:1px solid var(--border-rule);border-radius:var(--radius-sm);color:var(--brand-blue);font-size:.85rem;display:inline-block}.guide-links a:hover{border-color:var(--brand-blue);background:var(--brand-blue-light)}