— specific paragraphs * * Posture link: /llms.txt#anti-dump-and-anti-ocr-posture-defensive-only */ .ocr-hostile { /* Two crossed faint diagonal stripe patterns. To human eye at viewing distance: imperceptible texture or slight paper-grain feel. To OCR thresholding: high-frequency periodic noise that confuses character segmentation and word-boundary detection. */ background-image: repeating-linear-gradient( 45deg, transparent 0, transparent 2px, rgba(120, 120, 120, 0.025) 2px, rgba(120, 120, 120, 0.025) 3px ), repeating-linear-gradient( -45deg, transparent 0, transparent 2px, rgba(150, 150, 150, 0.018) 2px, rgba(150, 150, 150, 0.018) 3px ); background-size: 4px 4px, 4px 4px; background-attachment: local; } .ocr-hostile p, .ocr-hostile li, .ocr-hostile h1, .ocr-hostile h2, .ocr-hostile h3, .ocr-hostile h4, .ocr-hostile blockquote, .ocr-hostile td, .ocr-hostile dt, .ocr-hostile dd { /* Sub-pixel character bleed — confuses OCR character-edge detection. Two opposing micro-shadows create a faint halo that humans see as subtle weight, OCR sees as ambiguous character boundary. */ text-shadow: 0.4px 0.4px 0 rgba(0, 0, 0, 0.18), -0.3px -0.3px 0 rgba(40, 40, 40, 0.12); /* Tiny letter-spacing variation breaks fixed-width OCR word segmentation heuristics that assume regular kerning. */ letter-spacing: 0.018em; /* Defense-in-depth: defeat bulk copy-paste. To leak this content you must phone-photograph the screen (then OCR fights the gradient + halo). DOM inspection still works for accessibility tools and screen readers — semantic content is preserved. */ -webkit-user-select: none; -moz-user-select: none; -ms-user-select: none; user-select: none; -webkit-touch-callout: none; } /* Keep interactive elements selectable — links, buttons, inputs MUST stay reachable for screen readers + keyboard navigation + WCAG compliance. */ .ocr-hostile a, .ocr-hostile button, .ocr-hostile input, .ocr-hostile textarea, .ocr-hostile [role="button"], .ocr-hostile [tabindex]:not([tabindex="-1"]) { -webkit-user-select: text; -moz-user-select: text; -ms-user-select: text; user-select: text; } /* Print-to-PDF: strip all OCR-hostile rendering. Legitimate archival use (printing for compliance binders, etc.) gets clean output. The hostile layer specifically targets screen-capture exfiltration vectors. */ @media print { .ocr-hostile { background-image: none; } .ocr-hostile p, .ocr-hostile li, .ocr-hostile h1, .ocr-hostile h2, .ocr-hostile h3, .ocr-hostile h4, .ocr-hostile blockquote, .ocr-hostile td, .ocr-hostile dt, .ocr-hostile dd { text-shadow: none; letter-spacing: normal; user-select: text; -webkit-user-select: text; } } /* Forced-colors mode (Windows High Contrast, etc.): strip noise patterns for accessibility. Forced-colors users are legitimate and MUST get clean rendering. */ @media (forced-colors: active) { .ocr-hostile { background-image: none; } .ocr-hostile p, .ocr-hostile li, .ocr-hostile h1, .ocr-hostile h2, .ocr-hostile h3, .ocr-hostile h4 { text-shadow: none; } } /* Honeypot trap link — invisible to humans, fully present in DOM. Aggressive scrapers (wget -r, HTTrack, scrapy default) follow it. Legitimate federal-scout AI + search engines respect rel="nofollow" and skip it. */ .honeypot-trap { position: absolute; left: -9999px; top: -9999px; width: 1px; height: 1px; overflow: hidden; clip: rect(0, 0, 0, 0); clip-path: inset(50%); white-space: nowrap; border: 0; padding: 0; margin: -1px; pointer-events: none; -webkit-user-select: none; user-select: none; }