:root {
  color-scheme: light;
  --bg: #f7f8fc;
  --surface: #ffffff;
  --surface-raised: #ffffff;
  --surface-muted: #eef1f8;
  --text: #151827;
  --text-muted: #5b6377;
  --border: #d9deea;
  --accent: #6757f5;
  --accent-strong: #4433d2;
  --accent-soft: #ebe9ff;
  --cyan: #00a2c7;
  --success: #087a55;
  --warning: #9b5b00;
  --danger: #b42318;
  --shadow-sm: 0 1px 2px rgb(20 24 39 / .06);
  --shadow-lg: 0 24px 70px rgb(33 38 66 / .13);
  --radius-sm: .75rem;
  --radius-md: 1.15rem;
  --radius-lg: 1.75rem;
  --content: 76rem;
  --header-height: 4.75rem;
  --font-scale: 1;
}
html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0c0e16;
  --surface: #141722;
  --surface-raised: #191d2a;
  --surface-muted: #202433;
  --text: #f5f6fb;
  --text-muted: #b8bfd1;
  --border: #303648;
  --accent: #9c91ff;
  --accent-strong: #b5adff;
  --accent-soft: #25214d;
  --cyan: #69d9ff;
  --success: #62d8ad;
  --warning: #ffc46b;
  --danger: #ff8b82;
  --shadow-sm: 0 1px 2px rgb(0 0 0 / .28);
  --shadow-lg: 0 24px 70px rgb(0 0 0 / .34);
}
html[data-font-scale="large"] { --font-scale: 1.12; }
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-height) + 1rem);font-size:calc(16px * var(--font-scale))}
body{margin:0;min-width:20rem;background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:1rem;line-height:1.65;text-rendering:optimizeLegibility;overflow-wrap:break-word}
img,svg{display:block;max-width:100%}a{color:inherit;text-decoration-thickness:.08em;text-underline-offset:.2em}button,input,textarea,select{font:inherit}button{cursor:pointer}textarea{resize:vertical}input,textarea,select{min-width:0;width:100%;border:1px solid var(--border);border-radius:.75rem;background:var(--surface);color:var(--text);padding:.75rem .85rem}select{appearance:auto}:focus-visible{outline:3px solid var(--accent);outline-offset:3px}::selection{background:var(--accent);color:#fff}
.skip-link{position:fixed;top:.75rem;left:.75rem;z-index:1000;transform:translateY(-160%);padding:.7rem 1rem;border-radius:.5rem;background:var(--text);color:var(--bg);font-weight:800}.skip-link:focus{transform:translateY(0)}
.container{width:min(calc(100% - 2rem),var(--content));margin-inline:auto}.section{padding-block:clamp(4.5rem,8vw,7.5rem)}.section-anchor{scroll-margin-top:calc(var(--header-height) + 1rem)}
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.hero{position:relative;overflow:clip;padding-block:clamp(4rem,9vw,7.5rem)}.hero::before{position:absolute;z-index:-2;width:40rem;height:40rem;border-radius:50%;background:radial-gradient(circle,color-mix(in srgb,var(--accent) 23%,transparent),transparent 67%);content:"";inset:-15rem -9rem auto auto}.hero-grid-bg{position:absolute;z-index:-1;inset:0;opacity:.35;background-image:linear-gradient(color-mix(in srgb,var(--border) 45%,transparent) 1px,transparent 1px),linear-gradient(90deg,color-mix(in srgb,var(--border) 45%,transparent) 1px,transparent 1px);background-size:48px 48px;mask-image:linear-gradient(to bottom,black,transparent 85%)}.hero-shell{display:grid;align-items:center;gap:clamp(2rem,6vw,5rem);grid-template-columns:minmax(0,1.02fr) minmax(22rem,.98fr)}.availability{display:inline-flex;align-items:center;gap:.55rem;margin-bottom:1rem;color:var(--success);font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.84rem}.status-dot{display:inline-block;width:.55rem;height:.55rem;border-radius:50%;background:currentColor;box-shadow:0 0 0 .3rem color-mix(in srgb,currentColor 13%,transparent)}.hero-actions,.button-row{display:flex;flex-wrap:wrap;gap:.7rem;margin-top:1.5rem}.hero-capabilities{display:flex;flex-wrap:wrap;gap:.6rem 1.2rem;margin:1.5rem 0 0;padding:0;list-style:none;color:var(--text-muted);font-size:.86rem;font-weight:750}.hero-capabilities li{display:flex;gap:.45rem}.hero-capabilities span{color:var(--accent-strong);font-family:ui-monospace,monospace}
.btn{display:inline-flex;min-height:3rem;align-items:center;justify-content:center;gap:.5rem;padding:.72rem 1rem;border:1px solid transparent;border-radius:.75rem;font-weight:800;text-align:center;text-decoration:none;transition:transform 150ms ease,background 150ms ease,border-color 150ms ease}.btn:hover{transform:translateY(-2px)}.btn--primary{background:var(--accent);color:#fff}.btn--primary:hover{background:var(--accent-strong)}.btn--secondary{border-color:var(--border);background:var(--surface);color:var(--text)}.btn--ghost{background:transparent;color:var(--accent-strong)}.btn--small{min-height:2.55rem;padding:.52rem .75rem;font-size:.9rem}.text-button{padding:.3rem .45rem;border:0;background:transparent;color:var(--accent-strong);font-weight:800}.chip{min-height:2.55rem;padding:.5rem .75rem;border:1px solid var(--border);border-radius:999px;background:var(--surface);color:var(--text-muted);font-weight:750}.chip:hover,.chip[aria-pressed="true"]{border-color:var(--accent);color:var(--text)}
.system-map{overflow:hidden;border:1px solid var(--border);border-radius:var(--radius-lg);background:color-mix(in srgb,var(--surface-raised) 92%,transparent);box-shadow:var(--shadow-lg)}.system-map__bar,.system-map__footer{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.75rem 1rem;color:var(--text-muted);font-size:.75rem}.system-map__bar{border-bottom:1px solid var(--border)}.system-map__footer{border-top:1px solid var(--border);font-family:ui-monospace,monospace}.window-dots{display:flex;gap:.3rem}.window-dots i{width:.45rem;height:.45rem;border-radius:50%;background:var(--border)}.system-live{display:flex;align-items:center;gap:.4rem;color:var(--success)}.system-live i{width:.45rem;height:.45rem;border-radius:50%;background:currentColor}.system-map__canvas{position:relative;min-height:25rem}.system-map__links{position:absolute;width:100%;height:100%;inset:0}.system-map__links path{fill:none;stroke:color-mix(in srgb,var(--accent) 45%,transparent);stroke-width:1.4;stroke-dasharray:5 7}.map-node,.map-core{position:absolute;display:grid;place-items:center;min-width:7.5rem;padding:.85rem;border:1px solid var(--border);border-radius:1rem;background:var(--surface);box-shadow:var(--shadow-sm);text-align:center}.map-node strong,.map-core strong{font-size:.84rem}.map-node small,.map-core small{color:var(--text-muted);font-size:.66rem}.map-node__icon{display:grid;min-width:2rem;height:2rem;place-items:center;margin-bottom:.3rem;border-radius:.6rem;background:var(--accent-soft);color:var(--accent-strong);font-family:ui-monospace,monospace;font-size:.72rem;font-weight:900}.map-core{left:50%;top:50%;min-width:9rem;transform:translate(-50%,-50%);border-color:color-mix(in srgb,var(--accent) 65%,var(--border));background:linear-gradient(145deg,color-mix(in srgb,var(--accent) 17%,var(--surface)),var(--surface))}.map-core>span{display:grid;width:3rem;height:3rem;place-items:center;margin-bottom:.4rem;border-radius:50%;background:var(--accent);color:#fff;font-family:ui-monospace,monospace;font-weight:900}.map-node--business{left:5%;top:10%}.map-node--users{left:5%;bottom:10%}.map-node--api{right:4%;top:8%}.map-node--data{right:4%;top:50%;transform:translateY(-50%)}.map-node--delivery{right:4%;bottom:8%}.hero-stats{display:grid;margin-top:clamp(2rem,5vw,4rem);border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden;background:var(--border);gap:1px;grid-template-columns:repeat(4,1fr)}.hero-stat{padding:1.2rem;background:var(--surface)}.hero-stat strong{display:block;font-size:clamp(1.4rem,3vw,2rem);letter-spacing:-.04em}.hero-stat span{color:var(--text-muted);font-size:.84rem}
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/* v3 — knowledge architecture, workbench and PWA UX */
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.risk-list,.decision-list{display:grid;gap:.55rem;margin-top:1rem}.risk-row{display:grid;align-items:center;gap:.75rem;padding:.75rem;border:1px solid var(--border);border-radius:.75rem;background:var(--bg);grid-template-columns:auto minmax(0,1fr) auto}.risk-row div{display:grid}.risk-row small{color:var(--text-muted)}.risk-score{display:grid;width:2.6rem;height:2.6rem;place-items:center;border-radius:.7rem;font-weight:900}.risk-score--low{background:color-mix(in srgb,var(--success) 18%,var(--surface));color:var(--success)}.risk-score--medium{background:color-mix(in srgb,var(--warning) 18%,var(--surface));color:var(--warning)}.risk-score--high,.risk-score--critical{background:color-mix(in srgb,var(--danger) 16%,var(--surface));color:var(--danger)}.risk-score--critical{box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--danger) 45%,transparent)}
.trace-form{display:grid;align-items:end;gap:.5rem;margin-bottom:1rem;grid-template-columns:repeat(3,minmax(0,1fr)) auto}.table-delete{display:grid;width:2rem;height:2rem;place-items:center;border:1px solid var(--border);border-radius:.5rem;background:var(--surface);color:var(--danger);font-weight:900}.decision-log-tool{margin-top:1.2rem;padding-top:1.2rem;border-top:1px solid var(--border)}.decision-entry{display:grid;gap:.45rem;padding:.85rem;border:1px solid var(--border);border-radius:.8rem;background:var(--bg)}.decision-entry-head{display:flex;align-items:flex-start;justify-content:space-between;gap:.8rem}.decision-entry-head span{padding:.2rem .45rem;border-radius:999px;background:var(--accent-soft);color:var(--accent-strong);font-size:.7rem;font-weight:850}.decision-entry p{margin:0}.decision-entry small{color:var(--text-muted)}
.glossary-search{grid-column:1/-1;margin-bottom:.15rem}.back-to-top-btn{position:fixed;right:1rem;bottom:1rem;z-index:80;display:grid;width:3rem;height:3rem;place-items:center;border:1px solid var(--border);border-radius:.85rem;background:color-mix(in srgb,var(--surface) 90%,transparent);color:var(--text);box-shadow:var(--shadow-lg);backdrop-filter:blur(12px);font-size:1.1rem;font-weight:900}.back-to-top-btn[hidden],.install-button[hidden]{display:none}.back-to-top-btn:hover{border-color:var(--accent);color:var(--accent-strong)}
@media (max-width:1000px){.learning-paths{grid-template-columns:repeat(2,minmax(0,1fr))}.workbench-intro{grid-template-columns:1fr}.workbench-status{justify-items:start}.three-columns{grid-template-columns:1fr}.trace-form{grid-template-columns:1fr 1fr}.trace-form .btn{grid-column:1/-1}.owasp-grid{grid-template-columns:1fr 1fr}}
@media (max-width:700px){.learning-paths{grid-template-columns:1fr 1fr}.form-grid--3,.trace-form{grid-template-columns:1fr}.owasp-grid{grid-template-columns:1fr}.score-panel,.metric-output{align-items:flex-start;flex-direction:column}.workbench-intro{margin-top:2rem}.deep-link-copy,.bookmark-toggle{width:2.7rem;height:2.7rem}.back-to-top-btn{right:.75rem;bottom:.75rem}.trace-flow{margin-inline:-.2rem}.http-status-row{grid-template-columns:3.5rem 1fr}}
@media (max-width:480px){.learning-paths{grid-template-columns:1fr}.workbench-intro{padding:1rem}.decision-entry-head{flex-direction:column}.category-filter{overflow-x:auto;flex-wrap:nowrap;padding-bottom:.25rem}.category-filter .filter-chip{flex:none}}
@media print{.learning-paths,.category-filter,.continue-block,.deep-link-copy,.workbench-intro,.back-to-top-btn,.install-button{display:none!important}}
.offline-shell{display:grid;min-height:100svh;place-items:center;padding:2rem}.offline-shell>div{width:min(100%,46rem);padding:clamp(1.5rem,5vw,3rem);border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--surface);box-shadow:var(--shadow-lg)}
.content-freshness{margin:.7rem 0 0;color:var(--text-muted);font:750 .78rem ui-monospace,SFMono-Regular,Consolas,monospace}


/* Unified KnowerLife accessibility mode */
html[data-accessibility="enhanced"]{font-size:112.5%;scroll-behavior:auto}
html[data-accessibility="enhanced"] body{line-height:1.82;letter-spacing:.012em}
html[data-accessibility="enhanced"] .lead,html[data-accessibility="enhanced"] .muted,html[data-accessibility="enhanced"] .knowledge-card p,html[data-accessibility="enhanced"] .knowledge-card li{color:var(--text)}
html[data-accessibility="enhanced"] .gradient-text{background:none!important;-webkit-text-fill-color:currentColor!important;color:var(--accent-strong)!important}
html[data-accessibility="enhanced"] .reveal{opacity:1!important;transform:none!important;transition:none!important}
html[data-accessibility="enhanced"] .knowledge-card,html[data-accessibility="enhanced"] .guide-rail{border-width:2px}