:root{--margin:var(--page-margin);--ink:var(--color-ink);--ink-text:var(--color-ink-text);--paper:var(--color-paper);--cream:var(--color-cream);--rule:var(--color-rule);--rule-strong:var(--color-rule-strong);--accent:var(--color-accent);--muted:var(--color-muted);--img-border:var(--color-img-border)}@page{size:A4;margin:0}.book{align-items:center;gap:var(--page-gap-screen);padding:12mm 0 24mm}.book,.page{display:flex;flex-direction:column}.page{position:relative;width:var(--page-w);height:var(--page-h);background:var(--paper);box-shadow:var(--page-shadow-screen);overflow:hidden;page-break-after:always;break-after:page}.page:last-child{page-break-after:auto;break-after:auto}.page--cream{background:var(--cream)}.page-inner{padding:calc(var(--page-margin) + var(--page-header-h, 0mm)) var(--page-margin) calc(var(--page-margin) + var(--page-footer-h, 0mm));height:100%;display:flex;flex-direction:column;gap:8mm;position:relative;z-index:1}.page-bg{inset:0;width:100%;height:100%;object-position:center}.chap-cover-img,.page-bg{position:absolute;z-index:0;pointer-events:none;-webkit-print-color-adjust:exact;print-color-adjust:exact}.chap-cover-img{overflow:hidden}.chap-cover-img img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain}.chap-cover-img.fit-width img{inset:0 0 auto 0;width:100%;height:auto;object-fit:fill}.chap-cover-img.fit-height img{inset:0 auto 0 0;width:auto;height:100%;object-fit:fill}.watermark{position:absolute;inset:0;z-index:0;display:flex;pointer-events:none;overflow:hidden;-webkit-print-color-adjust:exact;print-color-adjust:exact}.wm-text{font-family:var(--font-heading);font-weight:800;text-transform:uppercase;color:var(--ink);letter-spacing:2px;white-space:nowrap}.wm-icon{object-fit:contain;flex:0 0 auto}.wm-mark{display:flex;flex-direction:row;gap:calc(4mm * var(--wm-scale, 1))}.wm-center,.wm-mark{align-items:center;justify-content:center}.wm-center .wm-mark{transform:rotate(-30deg);gap:calc(8mm * var(--wm-scale, 1))}.wm-center .wm-text{font-size:calc(64pt * var(--wm-scale, 1))}.wm-center .wm-icon{height:calc(40mm * var(--wm-scale, 1));width:auto}.wm-bottom-left,.wm-bottom-right,.wm-top-left,.wm-top-right{padding:10mm}.wm-top-left,.wm-top-right{padding-top:4mm}.wm-top-left{align-items:flex-start;justify-content:flex-start}.wm-top-right{align-items:flex-start;justify-content:flex-end}.wm-bottom-left{align-items:flex-end;justify-content:flex-start}.wm-bottom-right{align-items:flex-end;justify-content:flex-end}.watermark:not(.wm-center) .wm-text{font-size:calc(13pt * var(--wm-scale, 1));letter-spacing:1.5px}.watermark:not(.wm-center) .wm-icon{height:calc(14mm * var(--wm-scale, 1));width:auto}.page-inner.cover{justify-content:space-between}.cover-meta{font-family:var(--font-mono);font-size:9pt;letter-spacing:1.5px;text-transform:uppercase;color:var(--accent)}.cover-title{font-family:var(--th-cover-family,var(--font-cover));font-weight:700;font-size:var(--th-cover-size,26pt);line-height:1.15;letter-spacing:-.01em;color:var(--th-cover-color,var(--ink));margin:0;text-wrap:balance}.cover-sub{font-family:var(--font-body);font-weight:400;font-size:11pt;line-height:1.5;color:var(--muted);margin:0;max-width:130mm;text-wrap:pretty}.cover-footer{display:flex;justify-content:space-between;align-items:flex-end;letter-spacing:1px;color:var(--muted)}.cover-footer,.toc-eyebrow{font-family:var(--font-mono);font-size:9pt;text-transform:uppercase}.toc-eyebrow{letter-spacing:1.5px;color:var(--accent)}.toc-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column}.toc-item{display:grid;grid-template-columns:16mm 1fr auto;gap:6mm;align-items:baseline;padding:5mm 0;border-top:1px solid var(--rule)}.toc-item:last-child{border-bottom:1px solid var(--rule)}.toc-num{font-family:var(--font-mono);font-size:11pt;color:var(--accent);letter-spacing:.5px}.toc-title-row{display:flex;flex-direction:column;gap:1mm}.toc-chap-title{font-family:var(--font-heading);font-weight:600;font-size:12pt;line-height:1.25;color:var(--ink)}.toc-chap-sub{font-family:var(--font-body);font-size:9pt;color:var(--muted);line-height:1.45}.toc-pageno{font-size:11pt;color:var(--muted)}.chap-eyebrow,.toc-pageno{font-family:var(--font-mono)}.chap-eyebrow{font-size:9pt;letter-spacing:2px;text-transform:uppercase;color:var(--accent)}.chap-num{font-family:var(--font-heading);font-size:28pt;line-height:1;color:var(--ink)}.chap-num,.chap-title{font-weight:700;margin:0;letter-spacing:-.01em}.chap-title{font-family:var(--th-chapter-family,var(--font-heading));font-size:var(--th-chapter-size,18pt);line-height:1.2;color:var(--th-chapter-color,var(--ink));text-wrap:balance}.chap-desc{font-family:var(--font-body);font-weight:400;font-size:11pt;line-height:1.6;color:var(--ink-text);margin:0;max-width:140mm;text-wrap:pretty}.chap-rule{height:1px;background:var(--rule);margin:2mm 0}.chap-steps-count{font-family:var(--font-mono);font-size:9pt;letter-spacing:1.5px;text-transform:uppercase;color:var(--muted)}.page.step .page-inner{gap:6mm}.step-head{display:flex;align-items:baseline;justify-content:space-between;gap:8mm;border-bottom:1px solid var(--rule);padding-bottom:4mm}.step-eyebrow{letter-spacing:2px;color:var(--accent)}.step-chap-label,.step-eyebrow{font-family:var(--font-mono);font-size:9pt;text-transform:uppercase}.step-chap-label{letter-spacing:1.5px;color:var(--muted)}.step-title{font-family:var(--th-step-family,var(--font-heading));font-weight:700;font-size:var(--th-step-size,14pt);line-height:1.25;color:var(--th-step-color,var(--ink));margin:0;text-wrap:balance}.step-body{display:flex;flex-direction:column;gap:8mm;flex:1;min-height:0}.step-row{display:flex;flex-direction:column;gap:3mm;flex:0 0 auto}.row-title{font-family:var(--th-row-family,var(--font-heading));font-weight:600;font-size:var(--th-row-size,11pt);line-height:1.25;color:var(--th-row-color,var(--ink));margin:0}.row-instruction{font-family:var(--font-body);font-size:9.5pt;line-height:1.55;color:var(--ink-text);margin:0;max-width:170mm;text-wrap:pretty}.step-image-wrap{margin:0 auto;display:flex;gap:8mm;align-items:flex-start;justify-content:center;flex:0 0 auto}.step-image-wrap.single{width:81mm}.step-image-wrap.double,.step-image-wrap.single-wide{width:170mm}.step-image-wrap.callouts-below{flex-direction:column;align-items:center;gap:6mm;width:170mm}.step-screens{display:flex;gap:8mm;align-items:flex-start;justify-content:center;width:100%}.step-image-wrap>.img-slot,.step-screens>.img-slot{flex:1;min-width:0;aspect-ratio:294/492;height:auto}.step-image-wrap.single-wide .step-screens>.img-slot,.step-image-wrap.single-wide>.img-slot{aspect-ratio:49980/39852}.step-image-wrap.callouts-below.single .step-screens{width:81mm}.step-image-wrap.callouts-below.double .step-screens,.step-image-wrap.callouts-below.single-wide .step-screens{width:170mm}.step-image-wrap.mixed-wrap{flex-direction:column;align-items:stretch;gap:6mm;width:170mm}.step-image-wrap.mixed-top{width:100%;margin:0}.callout-body ol,.callout-body ul,.chap-desc ol,.chap-desc ul,.row-instruction ol,.row-instruction ul{margin:1mm 0;padding-left:5mm}.callout-body li,.chap-desc li,.row-instruction li{margin:.5mm 0}.callout-body p,.chap-desc p,.row-instruction p{margin:0 0 1.5mm}.callout-body p:last-child,.chap-desc p:last-child,.row-instruction p:last-child{margin-bottom:0}.step-instruction{display:flex;gap:8px;align-items:baseline;margin:0;max-width:170mm}.step-instruction-body{flex:1;min-width:0;font-family:var(--font-body);font-size:10.5pt;line-height:1.6;color:var(--ink-text);text-wrap:pretty}.step-instruction-body p{margin:0 0 1.5mm}.step-instruction-body p:last-child{margin-bottom:0}.step-instruction-body ol,.step-instruction-body ul{margin:1mm 0;padding-left:5mm}.callout-body ul,.chap-desc ul,.row-instruction ul,.step-instruction-body ul{list-style:disc outside}.callout-body ol,.chap-desc ol,.row-instruction ol,.step-instruction-body ol{list-style:decimal outside}.step-instruction-num{display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;border-radius:999px;background:var(--color-ink);color:var(--paper);font-family:var(--font-heading);font-weight:600;font-size:9pt;margin-right:8px;vertical-align:-3px}.callouts{display:flex;flex-direction:column;gap:4mm;flex:1;min-width:0}.callout{--ink:var(--color-ink);--ink-text:var(--color-ink-text);--muted:var(--color-muted);position:relative;padding:4mm 5mm;border:1px solid;border-radius:2mm;background:var(--paper);font-family:var(--th-callout-family,var(--font-body));font-size:var(--th-callout-size,9.5pt);line-height:1.5;color:var(--th-callout-color,var(--ink-text))}.callout-title{display:block;font-family:var(--th-callout-family,var(--font-heading));font-weight:600;font-size:9.5pt;letter-spacing:.1px;margin-bottom:1.5mm}.callout-body{color:var(--ink-text)}.callout--info{background:var(--color-info-bg);border-color:var(--color-info-border)}.callout--info .callout-title{color:var(--color-info-title)}.callout--note{background:var(--color-note-bg);border-color:var(--color-note-border)}.callout--note .callout-title{color:var(--color-note-title)}.callout--warn,.callout--warning{background:var(--color-warning-bg);border-color:var(--color-warning-border)}.callout--warn .callout-title,.callout--warning .callout-title{color:var(--color-warning-title)}.callout--success{background:var(--color-success-bg);border-color:var(--color-success-border)}.callout--success .callout-title{color:var(--color-success-title)}.callout--danger{background:var(--color-danger-bg);border-color:var(--color-danger-border)}.callout--danger .callout-title{color:var(--color-danger-title)}.callout-icon{display:inline-flex;vertical-align:-1.5px;margin-right:1.5mm}.callout-icon svg{display:block}.step-arrow{align-self:center;flex:0 0 auto;color:var(--ink);opacity:.5;display:flex;align-items:center;justify-content:center;width:12mm;margin:0 -2mm}.step-arrow svg{width:100%;height:auto}.step-image-wrap.callouts-side{width:100%;align-items:flex-start;justify-content:flex-start;gap:6mm}.step-image-wrap.callouts-side.single .img-slot{max-width:60mm;flex:0 0 60mm}.step-image-wrap.callouts-side.double{width:100%}.step-image-wrap.callouts-side.double .img-slot{max-width:55mm}.step-image-wrap.callouts-side.single-wide .img-slot{max-width:110mm;flex:0 0 110mm}.callouts-grid{display:grid;grid-template-columns:repeat(var(--callout-cols,2),1fr);gap:4mm;width:100%;align-content:start}.callouts-grid .callout{margin:0}.callout-marker{display:inline-flex;align-items:center;justify-content:center;width:5mm;height:5mm;border-radius:999px;background:var(--color-ink);color:var(--paper);font-family:var(--font-heading);font-weight:600;font-size:8pt;margin-right:2mm;vertical-align:-1mm}.callout--info .callout-marker{background:var(--color-info-marker)}.callout--note .callout-marker{background:var(--color-note-marker)}.callout--warn .callout-marker,.callout--warning .callout-marker{background:var(--color-warning-marker)}.callout--success .callout-marker{background:var(--color-success-marker)}.callout--danger .callout-marker{background:var(--color-danger-marker)}.page-foot{bottom:8mm;display:flex;justify-content:space-between;align-items:center;font-family:var(--font-mono);font-size:8pt;letter-spacing:1.5px;text-transform:uppercase;color:var(--muted)}.page-foot,.page-foot-rule{position:absolute;left:var(--margin);right:var(--margin)}.page-foot-rule{bottom:14mm;height:1px;background:var(--rule)}.img-slot{position:relative;background:var(--cream);border:6px solid var(--img-border);border-radius:6px;overflow:hidden;display:flex;align-items:center;justify-content:center}.img-slot.no-border{border:none}.img-slot.has-img{background:var(--paper)}.img-slot img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;display:none}.img-slot.has-img img{display:block}.img-slot.has-img .img-slot-meta{display:none}.img-slot[data-src=""]:before{content:"";position:absolute;top:0;left:0;right:0;height:8mm;background:var(--color-ink);opacity:.06}.anno-layer{position:absolute;inset:0;z-index:2;pointer-events:none;overflow:visible}.anno-text{margin:0;line-height:1.25;white-space:pre-wrap;overflow-wrap:break-word}.anno-shape-label,.anno-text{width:100%;height:100%;box-sizing:border-box}.anno-shape-label{display:flex;align-items:center;line-height:1.2;overflow:hidden}.anno-shape-label>span{display:inline-block;max-width:100%;overflow-wrap:break-word;white-space:pre-wrap}.anno-shape-label.masked>span{background:#ffffff;padding:1px 5px;border-radius:3px}.img-slot-meta{position:relative;z-index:1;flex-direction:column;gap:3mm;text-align:center;padding:6mm}.img-slot-icon,.img-slot-meta{display:flex;align-items:center}.img-slot-icon{width:12mm;height:12mm;border-radius:50%;background:var(--paper);border:1px solid var(--rule-strong);justify-content:center;color:var(--ink)}.img-slot-label{font-family:var(--font-heading);font-weight:600;font-size:9pt;letter-spacing:.5px;text-transform:uppercase;color:var(--ink)}.img-slot-path{font-family:var(--font-mono);font-size:7.5pt;color:var(--ink-text);padding:1mm 2.5mm;background:var(--paper);border-radius:1mm;border:1px solid var(--rule);word-break:break-all;max-width:100%}.img-slot-hint{font-family:var(--font-body);font-size:8pt;color:var(--muted);max-width:80mm;line-height:1.4}.grid-step{flex:1 1 auto;flex-direction:column}.grid-row,.grid-step{min-height:0;display:flex;gap:4mm}.grid-row{flex:1 1 0}.grid-cell{position:relative;flex:1 1 0;min-width:0;display:flex;overflow:hidden}.grid-cell-content{flex:1 1 auto;min-width:0;min-height:0;width:100%;height:100%;display:flex;flex-direction:column;gap:4mm;transform-origin:top left}.grid-cell-floats{position:absolute;inset:0;pointer-events:none}.grid-cell-float{position:absolute}.grid-text{font-family:var(--font-body);font-size:10.5pt;line-height:1.6;color:var(--ink-text);text-wrap:pretty}.grid-text h2{font-size:13pt;margin:0 0 1.5mm}.grid-text h2,.grid-text h3{font-family:var(--font-heading);font-weight:600;color:var(--ink)}.grid-text h3{font-size:11pt;margin:0 0 1mm}.grid-text p{margin:0 0 1.5mm}.grid-text p:last-child{margin-bottom:0}.grid-text ol,.grid-text ul{margin:1mm 0;padding-left:5mm}.grid-text ul{list-style:disc outside}.grid-text ol{list-style:decimal outside}.grid-text li{margin:.5mm 0}.grid-text del{text-decoration:line-through}.grid-text.align-center{text-align:center}.grid-text.align-right{text-align:right}.grid-text.align-center ol,.grid-text.align-center ul{width:fit-content;margin:1mm auto}.grid-text.align-right ol,.grid-text.align-right ul{width:fit-content;margin:1mm 0 1mm auto}.grid-cell .img-slot{width:auto;height:auto;max-width:calc(100% - 12px);max-height:calc(100% - 12px);align-self:center}.grid-cell .img-slot img{position:static;display:block;width:auto;height:auto;max-width:100%;max-height:100%;object-fit:contain}.grid-cell .img-slot.fit-height,.grid-cell .img-slot.fit-width{width:100%;height:100%;max-width:none;max-height:none}.grid-cell .img-slot.fit-width img{position:absolute;inset:0 0 auto 0;width:100%;height:auto;max-width:none;max-height:none;object-fit:fill}.grid-cell .img-slot.fit-height img{position:absolute;inset:0 auto 0 0;width:auto;height:100%;max-width:none;max-height:none;object-fit:fill}@media print{body,html{background:#fff}.book{padding:0;gap:0}.page{box-shadow:none;margin:0}}