:root{--text:#6b6375;--text-h:#08060d;--bg:#fff;--border:#e5e4e7;--accent:#aa3bff;--accent-hover:#962fd9;--accent-bg:#aa3bff1a;--accent-border:#aa3bff80;--error-bg:#dc26261a;--error-text:#dc2626;--shadow:#0000001a 0 10px 15px -3px, #0000000d 0 4px 6px -2px;--sans:system-ui, "Segoe UI", Roboto, sans-serif;--heading:system-ui, "Segoe UI", Roboto, sans-serif;font:16px/1.5 var(--sans);color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (prefers-color-scheme:dark){:root{--text:#9ca3af;--text-h:#f3f4f6;--bg:#16171d;--border:#2e303a;--accent:#c084fc;--accent-hover:#a855f7;--accent-bg:#c084fc26;--accent-border:#c084fc80;--error-bg:#f8717126;--error-text:#f87171;--shadow:#0006 0 10px 15px -3px, #00000040 0 4px 6px -2px}}*,:before,:after{box-sizing:border-box}body{min-height:100svh;margin:0}#root{max-width:960px;min-height:100svh;margin:0 auto;padding:2rem 1.5rem}h1,h2{font-family:var(--heading);color:var(--text-h);margin:0;font-weight:600}h1{letter-spacing:-.02em;font-size:2rem}h2{font-size:1.25rem}p{margin:0}.app__header{border-bottom:1px solid var(--border);grid-template-columns:auto minmax(0,1fr);align-items:center;column-gap:3rem;margin-bottom:2rem;padding-bottom:1.5rem;display:grid}.logo{flex-shrink:0;align-items:center;gap:1rem;display:flex}.logo__mark{flex-shrink:0;width:52px;height:52px}.logo__mark svg{width:100%;height:100%}.logo__page{stroke:var(--border);stroke-width:1.5px}.logo__page--back{fill:var(--accent-bg)}.logo__page--mid{fill:color-mix(in srgb, var(--accent-bg) 70%, var(--bg))}.logo__page--front{fill:var(--bg)}.logo__cut{stroke:var(--accent)}.logo__text{text-align:left;flex-direction:column;align-items:flex-start;display:flex}.logo__name{font-family:var(--heading);letter-spacing:-.04em;color:var(--text-h);font-size:2.5rem;font-weight:700;line-height:1}.logo__name-accent{background:linear-gradient(135deg, var(--accent) 0%, #6366f1 100%);color:#0000;-webkit-background-clip:text;background-clip:text}.logo__tagline{letter-spacing:.08em;text-transform:uppercase;color:var(--text);margin-top:.35rem;font-size:.8125rem;font-weight:500}@media (width<=640px){.app__header{grid-template-columns:1fr;row-gap:1rem}.app__subtitle{border-left:none;max-width:none;padding-left:0}}@media (width<=480px){.logo{flex-direction:column;gap:.75rem}.logo__text{text-align:center;align-items:center}.logo__name{font-size:2rem}}.app__subtitle{border-left:1px solid var(--border);text-align:left;justify-self:start;max-width:420px;margin:0;padding-left:3rem;font-size:.9375rem;line-height:1.6}.app__section{flex-direction:column;gap:1.5rem;display:flex}.app__error{background:var(--error-bg);color:var(--error-text);text-align:center;border-radius:8px;margin-bottom:1.5rem;padding:.75rem 1rem}.app__loading{text-align:center;color:var(--text)}.app__done{text-align:center;border:1px solid var(--border);border-radius:12px;align-items:center;gap:1rem;padding:2rem}.file-upload{border:2px dashed var(--border);cursor:pointer;border-radius:12px;justify-content:center;align-items:center;padding:3rem 2rem;transition:border-color .2s,background .2s;display:flex;position:relative}.file-upload:hover:not(.file-upload--disabled){border-color:var(--accent-border);background:var(--accent-bg)}.file-upload--disabled{opacity:.6;cursor:not-allowed}.file-upload__input{display:none}.file-upload__title{color:var(--text-h);text-align:center;font-size:1.125rem;font-weight:500}.page-grid{flex-direction:column;gap:1.25rem;display:flex}.page-grid__header{margin-bottom:.25rem}.page-grid__header h2{align-items:center;gap:.5rem;font-size:1.125rem;display:inline-flex}.help-tooltip{vertical-align:middle;display:inline-flex;position:relative}.help-tooltip__trigger{border:1px solid var(--border);background:var(--bg);width:1.375rem;height:1.375rem;color:var(--text);cursor:help;border-radius:50%;justify-content:center;align-items:center;padding:0;font-size:.75rem;font-weight:700;line-height:1;transition:border-color .2s,color .2s,background .2s;display:inline-flex}.help-tooltip__trigger:hover,.help-tooltip__trigger:focus-visible{border-color:var(--accent);color:var(--accent);background:var(--accent-bg);outline:none}.help-tooltip__content{z-index:20;border:1px solid var(--border);background:var(--bg);width:max-content;max-width:280px;box-shadow:var(--shadow);color:var(--text);text-align:left;pointer-events:none;opacity:0;visibility:hidden;border-radius:8px;padding:.625rem .75rem;font-size:.8125rem;font-weight:400;line-height:1.5;transition:opacity .15s,visibility .15s;position:absolute;top:calc(100% + .5rem);left:50%;transform:translate(-50%)}.help-tooltip:hover .help-tooltip__content,.help-tooltip:focus-within .help-tooltip__content{opacity:1;visibility:visible}.page-preview{border:1px solid var(--border);background:color-mix(in srgb, var(--accent-bg) 40%, var(--bg));border-radius:12px;flex-direction:column;align-items:center;gap:.75rem;padding:1.25rem;display:flex}.page-preview--empty{min-height:280px;color:var(--text);justify-content:center}.page-preview__frame{aspect-ratio:1/1.414;background:var(--bg);border:1px solid var(--border);width:100%;max-width:420px;box-shadow:var(--shadow);border-radius:8px;justify-content:center;align-items:center;transition:opacity .2s;display:flex;overflow:hidden}.page-preview__frame--loading{opacity:.7}.page-preview__image{object-fit:contain;image-rendering:auto;width:100%;height:100%;display:block}.page-preview__label{color:var(--text);font-size:.875rem;font-weight:500}.page-preview__footer{flex-direction:column;align-items:center;gap:1rem;width:100%;max-width:420px;padding-top:.25rem;display:flex}.page-carousel{border:1px solid var(--border);background:color-mix(in srgb, var(--accent-bg) 25%, var(--bg));border-radius:12px;align-items:center;gap:.5rem;padding:.75rem;display:flex}.page-carousel__nav{border:1px solid var(--border);background:var(--bg);width:2.25rem;height:2.25rem;color:var(--text-h);cursor:pointer;border-radius:50%;flex-shrink:0;font-size:1.25rem;line-height:1;transition:border-color .2s,background .2s,color .2s}.page-carousel__nav:hover{border-color:var(--accent);background:var(--accent-bg);color:var(--accent)}.page-carousel__track{scroll-snap-type:x mandatory;scrollbar-width:thin;scrollbar-color:var(--accent) transparent;flex:1;gap:.625rem;min-width:0;padding:.375rem .25rem .625rem;display:flex;overflow-x:auto}.page-carousel__track::-webkit-scrollbar{height:8px}.page-carousel__track::-webkit-scrollbar-track{background:color-mix(in srgb, var(--border) 50%, transparent);border-radius:4px;margin:0 .25rem}.page-carousel__track::-webkit-scrollbar-thumb{background:linear-gradient(90deg, var(--accent), #6366f1);background-clip:padding-box;border:2px solid #0000;border-radius:4px}.page-carousel__track::-webkit-scrollbar-thumb:hover{background:linear-gradient(90deg, var(--accent-hover), #4f46e5);background-clip:padding-box;border:2px solid #0000}.page-thumbnail{border:2px solid var(--border);background:var(--bg);cursor:pointer;scroll-snap-align:center;border-radius:8px;flex-direction:column;flex-shrink:0;align-items:center;gap:.375rem;padding:0;transition:border-color .2s,box-shadow .2s,transform .15s;display:flex}.page-thumbnail--compact{width:72px;padding:.375rem}.page-thumbnail:hover{border-color:var(--accent-border);transform:translateY(-1px)}.page-thumbnail--selected{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-bg)}.page-thumbnail__label{color:var(--text);font-size:.6875rem;font-weight:600}.page-thumbnail__image{aspect-ratio:1/1.414;object-fit:cover;border-radius:4px;width:100%;height:auto;display:block}.btn{cursor:pointer;border:none;border-radius:8px;padding:.75rem 1.5rem;font-size:1rem;font-weight:500;transition:background .2s,opacity .2s}.btn--primary{background:var(--accent);color:#fff}.btn--primary:hover:not(:disabled){background:var(--accent-hover)}.btn--wide{width:100%;max-width:420px}.btn:disabled{opacity:.5;cursor:not-allowed}.processing-overlay{z-index:100;background:#00000080;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.processing-overlay__card{background:var(--bg);box-shadow:var(--shadow);text-align:center;border-radius:12px;min-width:320px;max-width:90vw;padding:2rem}.processing-overlay__card h2{margin-bottom:.75rem}.processing-overlay__card p{margin-bottom:1.25rem}.processing-overlay__bar{background:var(--border);border-radius:4px;height:8px;margin-bottom:.5rem;overflow:hidden}.processing-overlay__bar-fill{background:var(--accent);border-radius:4px;height:100%;transition:width .3s}.processing-overlay__percentage{color:var(--text);font-size:.875rem}