:root{--font-serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;--font-sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;--bg: #fbfaf7;--bg-elev: #ffffff;--fg: #1c1b19;--muted: #6f6d67;--accent: #2f6f4f;--accent-fg: #ffffff;--rule: #e6e2db;--code-bg: #f1efe9;--selection: #cfe7da;--measure: 68ch;--gutter: clamp(1rem, 4vw, 2.5rem);--radius: 10px;--header-h: 3.5rem;color-scheme:light}:root[data-theme=dark]{--bg: #15140f;--bg-elev: #1e1c16;--fg: #ece8df;--muted: #9d998f;--accent: #74b794;--accent-fg: #15140f;--rule: #2c2a23;--code-bg: #221f19;--selection: #2c4a3a;color-scheme:dark}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--font-serif);font-size:clamp(1.05rem,.95rem + 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var(--rule)}.site-header__brand{font-family:var(--font-sans);font-weight:700;letter-spacing:-.02em;color:var(--fg);text-decoration:none}.site-header__nav{display:flex;align-items:center;gap:1.25rem}.site-header__nav a{font-family:var(--font-sans);font-size:.95rem;color:var(--muted);text-decoration:none}.site-header__nav a:hover{color:var(--fg)}.theme-toggle{display:inline-grid;place-items:center;width:2.25rem;height:2.25rem;border:1px solid var(--rule);border-radius:999px;background:var(--bg-elev);color:var(--fg);cursor:pointer;font-size:1.05rem;line-height:1}.theme-toggle:hover{border-color:var(--accent)}.theme-toggle .icon-dark{display:none}:root[data-theme=dark] .theme-toggle .icon-light{display:none}:root[data-theme=dark] .theme-toggle .icon-dark{display:inline}.reading-progress{position:fixed;inset-block-start:0;inset-inline:0;height:3px;z-index:30;background:transparent;pointer-events:none}.reading-progress__bar{height:100%;width:100%;transform:scaleX(0);transform-origin:0 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var(--bg-elev);--pagefind-ui-border: var(--rule);--pagefind-ui-tag: var(--code-bg);--pagefind-ui-border-radius: var(--radius);--pagefind-ui-font: var(--font-sans)}.toc{font-family:var(--font-sans);font-size:.9rem;line-height:1.4}.toc__title{font-size:.75rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:0 0 .75rem}.toc ol{list-style:none;margin:0;padding:0}.toc li{margin:0}.toc a{display:block;padding:.25rem 0 .25rem .75rem;border-left:2px solid var(--rule);color:var(--muted);text-decoration:none}.toc a:hover{color:var(--fg)}.toc a.is-active{color:var(--accent);border-left-color:var(--accent);font-weight:600}.toc .toc-depth-3 a{padding-left:1.5rem;font-size:.85rem}.visually-hidden{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}.skip-link{position:absolute;left:.5rem;top:-3rem;background:var(--accent);color:var(--accent-fg);padding:.5rem 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