:root{--bg:#f3efe6;--surface:#fffcf5;--surface-2:#ebe5d8;--text:#3d362b;--text-h:#2a241c;--text-muted:#7a6f62;--accent:#b8860b;--accent-hover:#9a7009;--danger:#b54a3c;--border:#d9d1c4;--radius:10px;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;font-family:system-ui,Segoe UI,PingFang SC,Hiragino Sans GB,sans-serif;font-weight:400;line-height:1.5}*,:before,:after{box-sizing:border-box}body{min-height:100dvh;margin:0}#root{min-height:100dvh}button,input,textarea{font:inherit}h1,h2{margin:0;font-weight:650}.app-shell{flex-direction:column;min-height:100dvh;display:flex}.app-header{background:var(--surface);border-bottom:1px solid var(--border);flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:1rem 1.5rem;padding:1.25rem 1.5rem;display:flex}.app-brand{text-align:left;align-items:center;gap:.75rem;display:flex}.app-brand-mark{background:linear-gradient(145deg,#f0d78c,#c9a227);border-radius:12px;width:2.5rem;height:2.5rem;box-shadow:inset 0 1px #ffffff59}.app-title{letter-spacing:.02em;font-size:1.35rem}.app-sub{color:var(--text-muted);margin:.15rem 0 0;font-size:.8rem}.app-header-actions{flex-wrap:wrap;align-items:center;gap:.75rem;display:flex}.bundle-feedback{color:var(--text-muted);flex:100%;font-size:.78rem}.bundle-feedback.err{color:var(--danger)}.app-body{flex:1;grid-template-columns:min(260px,34vw) 1fr;gap:0;min-height:0;display:grid}@media (width<=840px){.app-body{grid-template-columns:1fr}}.sidebar{background:var(--surface-2);border-right:1px solid var(--border);flex-direction:column;gap:.75rem;padding:1rem;display:flex}@media (width<=840px){.sidebar{border-right:none;border-bottom:1px solid var(--border)}}.sidebar-head{color:var(--text-muted);text-transform:uppercase;letter-spacing:.06em;justify-content:space-between;align-items:center;font-size:.85rem;font-weight:600;display:flex}.page-list{flex-direction:column;gap:.35rem;margin:0;padding:0;list-style:none;display:flex}.page-reorder{flex-direction:column;justify-content:center;gap:2px;display:flex}.btn.icon.reorder{width:1.65rem;height:auto;min-height:1.35rem;padding:.1rem 0;font-size:.7rem;line-height:1}.btn.icon.reorder:disabled{opacity:.35;cursor:not-allowed}.page-list>li{align-items:stretch;gap:.25rem;display:flex}.page-tab{color:inherit;cursor:pointer;text-align:left;background:#ffffff8c;border:1px solid #0000;border-radius:8px;flex:1;align-items:center;gap:.5rem;padding:.45rem .55rem;transition:background .15s,border-color .15s;display:flex}.page-tab:hover{background:#ffffffe6}.page-tab.active{border-color:var(--accent);background:#fffcf5;box-shadow:0 0 0 1px #b8860b33}.page-tab-num{color:var(--text-muted);min-width:1.25rem;font-size:.7rem;font-weight:700}.page-tab-title{text-overflow:ellipsis;white-space:nowrap;font-size:.9rem;overflow:hidden}.sidebar-hint{color:var(--text-muted);margin:auto 0 0;font-size:.72rem;line-height:1.45}.editor{grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-content:start;gap:1.5rem 2rem;padding:1.25rem 1.5rem 2rem;display:grid;overflow:auto}@media (width<=1100px){.editor{grid-template-columns:1fr}}.editor-form{flex-direction:column;gap:1rem;display:flex}.field,.field-inline{text-align:left;flex-direction:column;gap:.35rem;display:flex}.field-inline{flex-direction:row;align-items:center;gap:.5rem}.field-label{color:var(--text-muted);font-size:.8rem;font-weight:600}.input,.textarea{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);width:100%;color:inherit;padding:.55rem .65rem}.input:focus-visible,.textarea:focus-visible{outline:2px solid var(--accent);outline-offset:1px}.textarea{resize:vertical;min-height:200px}.preview-wrap{text-align:left}.preview-heading{color:var(--text-muted);margin-bottom:.65rem;font-size:.85rem;font-weight:600}.preview-stage{border-radius:var(--radius);border:1px solid var(--border);background:repeating-linear-gradient(45deg,#e8e2d6,#e8e2d6 8px,#e3ddd0 8px 16px);justify-content:center;align-items:flex-start;padding:1rem;display:flex}.btn{border:1px solid var(--border);background:var(--surface);color:inherit;cursor:pointer;border-radius:8px;padding:.45rem .85rem;font-size:.88rem;font-weight:600;transition:background .15s,border-color .15s,transform 80ms}.btn:disabled{opacity:.55;cursor:not-allowed}.btn:active:not(:disabled){transform:scale(.98)}.btn.primary{background:var(--accent);border-color:var(--accent-hover);color:#fffaf0}.btn.primary:hover:not(:disabled){background:var(--accent-hover)}.btn.ghost{background:0 0}.btn.sm{padding:.3rem .5rem;font-size:.8rem}.btn.icon{flex:none;justify-content:center;align-items:center;width:2rem;padding:0;font-size:1.1rem;line-height:1;display:flex}.btn.danger{color:var(--danger);border-color:#b54a3c59}.btn.danger:hover:not(:disabled){background:#b54a3c14}.btn.danger-outline{color:var(--danger);background:0 0;border:1px solid #b54a3c73}.btn.danger-outline:hover:not(:disabled){background:#b54a3c0f}.section-title{border-top:1px solid var(--border);color:var(--text-h,var(--text));margin:.75rem 0 0;padding-top:.75rem;font-size:.95rem}.section-title:first-child{border-top:none;margin-top:0;padding-top:0}.field-row{flex-wrap:wrap;align-items:flex-end;gap:.75rem;display:flex}.field-row.wrap{align-items:center}.field.compact{flex:none;min-width:5.5rem}.field.grow{flex:140px}.field-inline.tight{gap:.35rem}.pdf-layout-field .input.select{min-width:12.5rem;max-width:18rem}.field.check{flex-direction:row;align-items:center;gap:.5rem}.input.color{cursor:pointer;width:3rem;height:2.25rem;padding:.2rem}.input.select.fullwidth{width:100%;max-width:100%}.visually-hidden{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.block-chips{flex-wrap:wrap;align-items:center;gap:.35rem;display:flex}.block-chip{border:1px solid var(--border);cursor:pointer;color:inherit;background:#fff9;border-radius:999px;padding:.25rem .65rem;font-size:.8rem}.block-chip.active{border-color:var(--accent);background:#fffcf5;box-shadow:0 0 0 1px #b8860b33}.block-editor{flex-direction:column;gap:.75rem;padding-top:.25rem;display:flex}.layout-quick-bar{flex-wrap:wrap;gap:.35rem;display:flex}.layout-quick-btn{flex:calc(33.33% - .35rem);min-width:4.75rem;font-size:.78rem}.pair-align-bar{margin-top:.15rem}.align-bar{gap:.35rem;display:flex}.align-btn{border:1px solid var(--border);background:var(--surface);cursor:pointer;color:inherit;border-radius:8px;flex:1;padding:.35rem;font-size:.85rem}.align-btn.on{border-color:var(--accent);box-shadow:0 0 0 1px #b8860b40}.hint-muted{color:var(--text-muted);margin:0;font-size:.78rem}.range-value{color:var(--text-muted);min-width:2.75rem;margin-left:.45rem;font-size:.8rem;display:inline-block}.capture-stack{pointer-events:none;flex-direction:column;gap:12px;display:flex;position:fixed;top:0;left:-9999px}.book-preview-backdrop{z-index:60;padding:1.25rem;padding-top:max(1.25rem, env(safe-area-inset-top));box-sizing:border-box;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#1c181273;justify-content:center;align-items:flex-start;display:flex;position:fixed;inset:0;overflow:auto}.book-preview-dialog{border:1px solid var(--border);background:var(--surface);border-radius:14px;flex-direction:column;width:min(960px,100%);max-height:min(92dvh,900px);margin-bottom:1.5rem;display:flex;box-shadow:0 22px 48px #1c18122e,inset 0 0 0 1px #ffffff0f}.book-preview-header{border-bottom:1px solid var(--border);background:linear-gradient(180deg, #fffcf6, var(--surface));flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:.75rem 1rem;padding:1rem 1.15rem;display:flex}.book-preview-title{letter-spacing:.02em;margin:0;font-size:1.05rem;font-weight:700}.book-preview-sub{color:var(--text-muted);max-width:42rem;margin:.35rem 0 0;font-size:.78rem;line-height:1.45}.book-preview-body{flex-direction:column;flex:1;gap:1.5rem;min-height:0;padding:1rem 1.15rem 1.25rem;display:flex;overflow:auto}.book-preview-spread{text-align:center}.book-preview-spread-title{color:var(--text-muted);letter-spacing:.04em;text-transform:uppercase;margin:0 0 .65rem;font-size:.8rem;font-weight:600}.book-preview-spread-pages{border-radius:var(--radius);border:1px solid var(--border);background:repeating-linear-gradient(45deg,#ebe4d8,#ebe4d8 7px,#e6dfd3 7px 14px);flex-flow:wrap;justify-content:center;align-items:flex-start;gap:0;padding:.75rem .5rem 1rem;display:flex}.book-preview-half-slot{flex:none;overflow:hidden}.book-preview-scale-inner,.book-preview-blank-inner{transform-origin:0 0;box-sizing:border-box}.book-preview-blank-inner{background:#fff}.book-preview-fullpage-stage{border-radius:var(--radius);border:1px solid var(--border);background:repeating-linear-gradient(45deg,#ebe4d8,#ebe4d8 7px,#e6dfd3 7px 14px);justify-content:center;padding:.75rem .5rem 1rem;display:flex}