section.pattern-top{background:radial-gradient(ellipse 60% 70% at 95% 0%, color-mix(in oklch, var(--accent) 18%, var(--paper)), var(--paper) 60%), var(--paper);padding-top:clamp(40px,6vw,80px)}.pattern-head{gap:22px;margin-bottom:56px;display:grid}.ph-meta{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.ph-title{letter-spacing:-.015em;margin:0;font-size:clamp(2.9rem,7vw,5.4rem);line-height:.97}.ph-title .serif-em{color:var(--ink-2)}.ph-lead{color:var(--ink-2);margin:0;font-size:clamp(1.1rem,1.5vw,1.3rem);line-height:1.5}.tldr{grid-template-columns:1fr 1fr 1.1fr;gap:16px;display:grid}.tldr-card{border-radius:var(--r);background:var(--paper);border:1px solid var(--line);align-content:start;gap:14px;padding:20px 20px 22px;display:grid}.tldr-eyebrow{letter-spacing:.1em;text-transform:uppercase;color:var(--ink-mute);align-items:center;gap:8px;margin:0;font-size:10.5px;display:flex}.tldr-mk{border-radius:4px;justify-content:center;align-items:center;width:14px;height:14px;font-size:11px;line-height:1;display:inline-flex}.tldr-use .tldr-mk{background:var(--accent-soft);color:var(--accent-deep)}.tldr-avoid .tldr-mk{color:#9b2014;color:lab(34.6594% 49.7116 39.8406);background:#ffdad3;background:lab(90.2101% 17.7537 11.8565)}.tldr-card ul{gap:10px;margin:0;padding:0;list-style:none;display:grid}.tldr-card li{color:var(--ink-2);padding-left:18px;font-size:.96rem;line-height:1.5;position:relative}.tldr-card li:before{content:"";background:var(--accent);opacity:.65;border-radius:2px;width:7px;height:7px;position:absolute;top:8px;left:0}.tldr-avoid li:before{opacity:1;background:#c65b4c;background:lab(52.3168% 42.7675 30.3439);border-radius:50%}.tldr-card-quote{background:var(--accent-soft);border-color:color-mix(in oklch, var(--accent) 28%, transparent)}.tldr-quote{font-family:var(--font-serif);letter-spacing:-.01em;color:var(--accent-deep);margin:0;font-size:clamp(1.2rem,1.7vw,1.5rem);font-style:italic;line-height:1.3}@media (max-width:840px){.tldr{grid-template-columns:1fr}}.ph-inpractice,.ph-prevents{color:var(--ink-soft);margin-top:.75rem;font-size:.95rem;line-height:1.55}.ph-inpractice-label,.ph-prevents-label{letter-spacing:.04em;text-transform:uppercase;color:var(--ink);opacity:.7;margin-right:.5rem;font-size:.7rem;display:inline-block}.ph-prevents-link{white-space:nowrap}.gloss-link{text-underline-offset:2px;-webkit-text-decoration:underline dotted;text-decoration:underline dotted}.gloss-link:hover,.gloss-link:focus-visible{text-decoration-style:solid}
.mental-model{background:var(--paper-2)}.mm-grid{grid-template-columns:.92fr 1.08fr;align-items:center;gap:clamp(28px,4vw,56px);display:grid}.mm-caption{color:var(--ink-2);margin:0;font-size:1.03rem;line-height:1.55}.mm-caption strong{color:var(--ink);font-weight:600}.mm-diagram{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);padding:clamp(20px,3vw,30px);position:relative;box-shadow:inset 0 1px #fff9}.mm-flow{flex-direction:column;gap:9px;margin:18px 0 0;padding:0;list-style:none;display:flex}.mm-flow li{color:var(--ink-2);align-items:baseline;gap:10px;font-size:.96rem;line-height:1.5;display:flex}.mm-flow-n{background:var(--accent-deep,var(--ink));width:19px;height:19px;color:var(--paper);font-family:var(--font-mono);border-radius:50%;flex:none;justify-content:center;align-items:center;font-size:11px;font-weight:700;display:inline-flex;transform:translateY(2px)}.mm-compare{margin:18px 0 0}.mm-compare-link{font-family:var(--font-mono);letter-spacing:.02em;color:var(--accent-deep,var(--ink));border-bottom:1px solid var(--line-strong);font-size:.78rem;text-decoration:none}.mm-compare-link:hover{border-bottom-color:currentColor}.mm-fallback{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);padding:clamp(26px,3.6vw,40px) clamp(24px,4vw,46px);box-shadow:inset 0 1px #fff9}.mm-fallback p{font-family:var(--font-serif);color:var(--ink-2);margin:0;font-size:clamp(1.3rem,2.4vw,1.72rem);line-height:1.4}@media (max-width:840px){.mm-grid{grid-template-columns:1fr}}