:root{ --paper-deep:#fbfaf7; --card:#ffffff; --ink:#33302B; --ink-soft:#6B655B; --sage:#3F5E4E; --sage-deep:#31493D; --sage-tint:#E4EAE2; --terra:#A45C40; --terra-deep:#8C4B33; --terra-tint:#F3E2D8; --ochre:#8F6516; --ochre-tint:#F4E7CB; --line:rgba(51,48,43,.14); --shadow:0 4px 14px rgba(66,55,38,.10); --radius:10px; --sage-text:#31493D; --terra-text:#8C4B33; --ochre-text:#8F6516; --slate-text:#5C6B70; --card-2:#FBFAF7; --header-bg:rgba(251,250,247,.92); --shell-top:#ffffff; --shell-edge:#F3F1EC; --well:#F4F2ED; --track:#ECE9E2; --highlight:rgba(255,255,255,.9);}
:root[data-theme="dark"]{color-scheme:dark;  --paper-deep:#101112; --card:#1E2023; --card-2:#1A1C1F; --ink:#E6E7E6; --ink-soft:#9A9EA1; --sage:#5E8B72; --sage-deep:#4F7A62; --sage-text:#A6C6B2; --sage-tint:rgba(141,179,156,.16); --terra:#B5694C; --terra-deep:#C97A5C; --terra-text:#DFA083; --terra-tint:rgba(217,153,127,.16); --ochre:#B98A3A; --ochre-text:#D6AC5A; --ochre-tint:rgba(214,172,90,.16); --slate:#8A9BA0; --slate-text:#AEBCC0; --slate-tint:rgba(174,188,192,.14); --line:rgba(230,231,230,.14); --shadow:0 4px 14px rgba(0,0,0,.35); --shadow-lg:0 14px 38px rgba(0,0,0,.45); --header-bg:rgba(20,21,23,.92); --shell-top:#222428; --shell-edge:#17181B; --well:#17181B; --track:#0F1012; --highlight:rgba(255,255,255,.06);}
@media print{:root[data-theme="dark"]{color-scheme:light; --paper-deep:#ffffff;--card:#ffffff;--card-2:#ffffff; --ink:#33302B;--ink-soft:#6B655B;--line:rgba(51,48,43,.2); --sage:#3F5E4E;--sage-deep:#31493D;--sage-text:#31493D;--sage-tint:#E4EAE2; --terra:#A45C40;--terra-deep:#8C4B33;--terra-text:#8C4B33;--terra-tint:#F3E2D8; --ochre:#8F6516;--ochre-text:#8F6516;--ochre-tint:#F4E7CB;--slate:#5C6B70;--slate-text:#5C6B70;--slate-tint:#E3E8E8; --shadow:none;--shadow-lg:none;--highlight:transparent;}}
.theme-toggle{display:inline-flex;align-items:center;justify-content:center;width:2.2rem;height:2.2rem; border-radius:6px;border:1px solid transparent;background:transparent;color:var(--ink-soft);cursor:pointer; margin-left:.25rem;}
.theme-toggle:hover{background:var(--sage-tint);color:var(--sage-text)}
.theme-toggle svg{width:1.15rem;height:1.15rem;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.theme-toggle .moon{display:none}
:root[data-theme="dark"] .theme-toggle .sun{display:none}
:root[data-theme="dark"] .theme-toggle .moon{display:block}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{font-family:"Source Sans 3",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif; font-size:17px;line-height:1.65;color:var(--ink);background:var(--bg); -webkit-font-smoothing:antialiased;}
h1,h2,h3{font-family:var(--serif);line-height:1.2;font-weight:600}
a{color:var(--sage-text);text-underline-offset:2px}
a:hover{color:var(--terra-text)}
:focus-visible{outline:3px solid var(--terra);outline-offset:2px;border-radius:6px}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.nav{display:flex;align-items:center;justify-content:space-between;padding:.7rem 0;gap:1rem}
.nav-links{display:flex;gap:.25rem;flex-wrap:wrap}
.nav-links a{text-decoration:none;color:var(--ink-soft);font-weight:600;font-size:.95rem; padding:.45rem .8rem;border-radius:6px;}
.nav-links a:hover{background:var(--sage-tint);color:var(--sage-text)}
.nav-links a.current{background:var(--terra-tint);color:var(--terra-text)}
@media (max-width:720px){.nav{flex-direction:column;align-items:center;gap:.55rem;padding:.6rem 0}.nav-links{justify-content:center}.nav-links a{padding:.45rem .75rem;font-size:.9rem}section[id]{scroll-margin-top:128px}}
.page-head{padding:3rem 0 1.6rem;text-align:center}
.page-head h1{font-size:clamp(1.9rem,4.6vw,2.9rem);max-width:22ch;margin:0 auto .8rem}
.page-head p{max-width:40em;margin:0 auto;color:var(--ink-soft);font-size:1.08rem}
section{padding:2.4rem 0}
section.alt{background:var(--paper-deep);border-top:1px solid var(--line)}
.prose{max-width:calc(46em + 40px);margin:0 auto;padding-left:20px;padding-right:20px}
.prose p{margin-bottom:1rem}
.prose h2{font-size:clamp(1.45rem,3.2vw,1.9rem);margin:1.2rem 0 .8rem}
.prose h3{font-size:1.12rem;margin:1.5rem 0 .5rem}
.prose ul{margin:0 0 1rem 1.2rem}
.prose li{margin-bottom:.4rem}
.note{background:var(--card);border:1px solid var(--line);border-left:3px solid var(--sage); padding:.9rem 1.1rem;border-radius:0 6px 6px 0;font-size:.95rem;margin:1.4rem 0;}
.ref-list{max-width:calc(46em + 40px);margin:0 auto;padding-left:20px;padding-right:20px;display:grid;gap:.8rem}
.ref{background:var(--card);border:1px solid var(--line);border-radius:10px; padding:.95rem 1.15rem;box-shadow:var(--shadow);font-size:.95rem;}
.ref .r-cite{margin-bottom:.25rem}
.ref .r-note{color:var(--ink-soft);font-size:.9rem}
.ref .r-links{margin-top:.35rem;font-size:.88rem}
.ref .r-links a{margin-right:.9rem;font-weight:600}
.jump{display:flex;justify-content:center;gap:.5rem;flex-wrap:wrap;margin-top:1.2rem}
.jump a{text-decoration:none;font-weight:600;font-size:.92rem;color:var(--sage-text); background:var(--sage-tint);padding:.45rem 1rem;border-radius:999px;}
.jump a:hover{background:var(--sage-deep);color:#fff}
section[id]{scroll-margin-top:72px}
.backline{text-align:center;padding:1.6rem 0 0}
.reviewed{text-align:center;font-size:.85rem;color:var(--ink-soft);padding:1rem 0 0}
@media print{body{background:#fff;font-size:11pt}.page-head{padding:0 0 .8rem}.jump{display:none}section{padding:.8rem 0}section.alt{background:none}.ref{box-shadow:none;break-inside:avoid}.note{background:none;border:1px solid #ccc}a{color:inherit;text-decoration:none}.r-links a{text-decoration:underline}}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){color-scheme:dark;  --paper-deep:#101112; --card:#1E2023; --card-2:#1A1C1F; --ink:#E6E7E6; --ink-soft:#9A9EA1; --sage:#5E8B72; --sage-deep:#4F7A62; --sage-text:#A6C6B2; --sage-tint:rgba(141,179,156,.16); --terra:#B5694C; --terra-deep:#C97A5C; --terra-text:#DFA083; --terra-tint:rgba(217,153,127,.16); --ochre:#B98A3A; --ochre-text:#D6AC5A; --ochre-tint:rgba(214,172,90,.16); --slate:#8A9BA0; --slate-text:#AEBCC0; --slate-tint:rgba(174,188,192,.14); --line:rgba(230,231,230,.14); --shadow:0 4px 14px rgba(0,0,0,.35); --shadow-lg:0 14px 38px rgba(0,0,0,.45); --header-bg:rgba(20,21,23,.92); --shell-top:#222428; --shell-edge:#17181B; --well:#17181B; --track:#0F1012; --highlight:rgba(255,255,255,.06);}}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .theme-toggle .sun{display:none}}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .theme-toggle .moon{display:block}}