@font-face{font-family:'Newsreader';font-style:normal;font-weight:400;font-display:swap;src:url(fonts/newsreader-latin-400-normal.woff2) format('woff2')}
@font-face{font-family:'Newsreader';font-style:italic;font-weight:400;font-display:swap;src:url(fonts/newsreader-latin-400-italic.woff2) format('woff2')}
@font-face{font-family:'Newsreader';font-style:normal;font-weight:600;font-display:swap;src:url(fonts/newsreader-latin-600-normal.woff2) format('woff2')}
@font-face{font-family:'Newsreader';font-style:italic;font-weight:600;font-display:swap;src:url(fonts/newsreader-latin-600-italic.woff2) format('woff2')}
@font-face{font-family:'Public Sans';font-style:normal;font-weight:400;font-display:swap;src:url(fonts/public-sans-latin-400-normal.woff2) format('woff2')}
@font-face{font-family:'Public Sans';font-style:normal;font-weight:500;font-display:swap;src:url(fonts/public-sans-latin-500-normal.woff2) format('woff2')}
@font-face{font-family:'Public Sans';font-style:normal;font-weight:600;font-display:swap;src:url(fonts/public-sans-latin-600-normal.woff2) format('woff2')}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-weight:400;font-display:swap;src:url(fonts/ibm-plex-mono-latin-400-normal.woff2) format('woff2')}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-weight:500;font-display:swap;src:url(fonts/ibm-plex-mono-latin-500-normal.woff2) format('woff2')}
:root{--paper:#EFF1E4;--paper-2:#E4E7D4;--paper-3:#DADDC6;--ink:#23261F;--ink-soft:#565A47;--line:rgba(35,38,31,.22);--accent:#1E4D4A;--accent-strong:#153836;--accent-soft:#D9E4DF;--moss:#5C6B2E;--gold:#A8792F;--warn:#A6461F;--good:#2F6B3A;--focus:#1E4D4A;--link:#1E4D4A;color-scheme:light}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--paper:#1B1D17;--paper-2:#23261E;--paper-3:#2C2F26;--ink:#ECEADC;--ink-soft:#B7B5A2;--line:rgba(236,234,220,.24);--accent:#74BCB4;--accent-strong:#9BD3CC;--accent-soft:#243836;--moss:#9CB061;--gold:#DCAD52;--warn:#E1855C;--good:#8CC48F;--focus:#9BD3CC;--link:#9BD3CC;color-scheme:dark}}
:root[data-theme="dark"]{--paper:#1B1D17;--paper-2:#23261E;--paper-3:#2C2F26;--ink:#ECEADC;--ink-soft:#B7B5A2;--line:rgba(236,234,220,.24);--accent:#74BCB4;--accent-strong:#9BD3CC;--accent-soft:#243836;--moss:#9CB061;--gold:#DCAD52;--warn:#E1855C;--good:#8CC48F;--focus:#9BD3CC;--link:#9BD3CC;color-scheme:dark}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:72px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:'Newsreader',Georgia,'Times New Roman',serif;font-size:19px;line-height:1.65;-webkit-font-smoothing:antialiased;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
a{color:var(--link);text-underline-offset:3px;text-decoration-thickness:1px}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:2px solid var(--focus);outline-offset:2px}
.skip{position:absolute;left:-999px;top:8px;background:var(--accent);color:var(--paper);padding:8px 12px;z-index:50;font-family:'Public Sans',sans-serif}
.skip:focus{left:8px}
.bar{position:sticky;top:0;z-index:20;background:var(--paper);border-bottom:1px solid var(--line);margin:0 calc(-1 * max(16px,env(safe-area-inset-left,0px)));padding:10px max(16px,env(safe-area-inset-right,0px)) 10px max(16px,env(safe-area-inset-left,0px));display:flex;align-items:center;gap:10px 18px;flex-wrap:wrap;font-family:'Public Sans',system-ui,sans-serif;font-size:14px}
.bar .brand{font-family:'Newsreader',Georgia,serif;font-weight:600;font-size:18px;text-decoration:none;color:var(--ink);margin-right:auto}
.bar a.nav{text-decoration:none;color:var(--ink-soft);padding:6px 2px;min-height:32px;display:inline-flex;align-items:center}
.bar a.nav:hover,.bar a.nav[aria-current]{color:var(--accent);text-decoration:underline}
.bar button{font:inherit;background:transparent;border:1px solid var(--line);color:var(--ink-soft);min-height:36px;padding:4px 12px;cursor:pointer}
.bar button:hover{border-color:var(--accent);color:var(--accent)}
main{max-width:680px;margin:0 auto;padding:48px 0 40px}
main.wide{max-width:820px}
.eyebrow{font-family:'IBM Plex Mono',ui-monospace,monospace;font-size:12px;letter-spacing:.11em;text-transform:uppercase;color:var(--moss);margin:0 0 12px}
h1,h2,h3,h4{font-family:'Newsreader',Georgia,serif;font-weight:600;text-wrap:balance;line-height:1.15;margin:0}
h1{font-size:clamp(34px,6vw,52px);margin:0 0 20px}
h2{font-size:clamp(26px,4vw,34px);margin:64px 0 18px}
h2.chapter .chno{display:block;font-family:'IBM Plex Mono',monospace;font-size:12px;font-weight:500;letter-spacing:.11em;text-transform:uppercase;color:var(--moss);margin-bottom:8px}
h3{font-size:22px;margin:36px 0 10px}
p{margin:0 0 1.05em}
ul,ol{margin:0 0 1.2em;padding-left:1.3em}li{margin-bottom:.45em}
.srcnote{font-family:'Public Sans',system-ui,sans-serif;font-size:14px;line-height:1.5;color:var(--ink-soft);border-left:3px solid var(--gold);padding:2px 0 2px 12px;margin:0 0 28px}
.srcnote em{font-style:normal}
a.cite{font-family:'IBM Plex Mono',monospace;font-size:.78em;text-decoration:none;border-bottom:1px solid var(--line);padding:0 1px}
a.cite:hover{border-color:var(--accent)}
.lede{font-size:21px;line-height:1.55;color:var(--ink-soft)}
.praise{border-left:3px solid #A8792F;padding:2px 0 2px 18px;margin:0 0 28px}.praise h2{font-size:1.05em;margin:0 0 .6em}.praise p{margin:.5em 0;font-style:italic}.praise .by{font-style:normal}
.hero{display:flex;gap:32px;align-items:center;flex-wrap:wrap;margin:0 0 28px}.coverimg{width:min(100%,300px);height:auto;border-radius:4px;box-shadow:0 10px 30px rgba(0,0,0,.28)}.hero>div{flex:1 1 280px;min-width:0}
.doi{display:block;font-family:'IBM Plex Mono',monospace;font-size:.78em;color:var(--ink-soft)}.ph{background:#fff3cd;color:#5a4300;padding:1px 6px;border-radius:3px;font-size:.92em}.front{font-size:.95em;line-height:1.8;margin:0 0 22px}.eds{padding-left:1.1em}.eds li{margin:.5em 0}.papers li{margin:.7em 0}.papers .pn{font-family:'Public Sans',sans-serif;font-size:.75em;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-soft)}.praise{border-left:3px solid var(--gold);padding-left:18px;margin:0 0 28px}.praise p{font-style:italic}.praise .by{font-style:normal}
.draft{font-family:'Public Sans',sans-serif;font-size:13px;border:1px solid var(--gold);padding:10px 14px;margin:0 0 28px;color:var(--ink-soft);line-height:1.5}
.pager{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;border-top:1px solid var(--line);margin-top:56px;padding-top:20px;font-family:'Public Sans',sans-serif;font-size:15px}
.pager a{text-decoration:none;max-width:48%}
.pager small{display:block;font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--moss)}
.toc{list-style:none;padding:0;margin:0}
.toc>li{border-top:1px solid var(--line);padding:18px 0}
.toc .pt{font-size:24px;font-weight:600;font-family:'Newsreader',serif;text-decoration:none;color:var(--ink)}
.toc .pt:hover{color:var(--accent)}
.toc .pn{display:block;font-family:'IBM Plex Mono',monospace;font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--moss)}
.toc ol{list-style:none;padding:0;margin:8px 0 0;font-family:'Public Sans',sans-serif;font-size:15px;line-height:1.5}
.toc ol li{margin:.15em 0}
.toc ol a{text-decoration:none;color:var(--ink-soft)}.toc ol a:hover{color:var(--accent);text-decoration:underline}
.badges{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.badge{font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:.06em;text-transform:uppercase;border:1px solid var(--line);padding:3px 8px;color:var(--ink-soft);text-decoration:none}
.badge.i{border-color:var(--moss);color:var(--moss)}.badge.c{border-color:var(--accent);color:var(--accent)}
.bib{font-family:'Public Sans',sans-serif;font-size:14px;line-height:1.55;margin:0 0 .8em;padding-left:3.2em;text-indent:-3.2em;overflow-wrap:anywhere}
.bn{font-family:'IBM Plex Mono',monospace;font-weight:500;display:inline-block;width:3.2em;text-indent:0}
.bib:target,p:target,h2:target,h3:target{background:var(--accent-soft);outline:6px solid var(--accent-soft)}
.card{border:1px solid var(--line);background:var(--paper-2);padding:24px;font-family:'Public Sans',system-ui,sans-serif;font-size:16px;line-height:1.55}
.go{display:grid;gap:12px;margin:48px 0 0}
.go a.card{text-decoration:none;color:var(--ink);display:block}
.go a.card:hover{border-color:var(--accent)}
.go .t{font-family:'Newsreader',serif;font-size:22px;font-weight:600;display:block;margin:4px 0}
/* coach */
.coach{margin:64px 0 0;border:1px solid var(--line);background:var(--paper-2);padding:28px;font-family:'Public Sans',system-ui,sans-serif;font-size:16px;line-height:1.55}
@media(max-width:520px){.coach{padding:18px}}
.coach h2{margin:0 0 8px;font-size:28px}
.coach h3{font-size:20px;margin:0 0 10px}
.coach p{margin:0 0 .9em}
.coach .note{font-size:13px;color:var(--ink-soft);border-left:3px solid var(--gold);padding:2px 0 2px 12px}
.tabs{display:flex;gap:6px;flex-wrap:wrap;margin:18px 0 20px}
.tab{font-family:'IBM Plex Mono',monospace;font-size:12px;letter-spacing:.05em;text-transform:uppercase;border:1px solid var(--line);background:var(--paper);color:var(--ink);padding:10px 14px;min-height:44px;cursor:pointer}
.tab[aria-selected="true"]{background:var(--accent);border-color:var(--accent);color:var(--paper)}
.opt{display:block;width:100%;text-align:left;border:1px solid var(--line);background:var(--paper);color:var(--ink);padding:14px 16px;cursor:pointer;min-height:44px;font:inherit;line-height:1.45;margin:0 0 10px}
.opt:hover{border-color:var(--accent)}.opt[aria-pressed="true"]{border-color:var(--accent);background:var(--accent-soft)}
.fb{border:1px solid var(--line);background:var(--paper);padding:16px;margin-top:6px}
.fb b{font-family:'IBM Plex Mono',monospace;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--moss);display:block;margin-bottom:2px}
.fb p+b{margin-top:10px}
.btn{font-family:'IBM Plex Mono',monospace;font-size:13px;letter-spacing:.04em;text-transform:uppercase;cursor:pointer;border:1px solid var(--ink);background:transparent;color:var(--ink);padding:12px 18px;min-height:44px}
.btn:hover{background:var(--ink);color:var(--paper)}
.btn-p{background:var(--accent);border-color:var(--accent);color:var(--paper)}.btn-p:hover{background:var(--accent-strong);border-color:var(--accent-strong)}
fieldset.q{border:0;border-top:1px solid var(--line);padding:14px 0;margin:0;min-width:0}
fieldset.q legend{padding:0;font-weight:500;margin-bottom:8px}
.scale{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}
@media(max-width:520px){.scale{grid-template-columns:1fr 1fr}}
.scale label{border:1px solid var(--line);background:var(--paper);padding:8px 6px;text-align:center;font-size:13px;cursor:pointer;min-height:44px;display:flex;align-items:center;justify-content:center}
.scale input{position:absolute;opacity:0;pointer-events:none}
.scale label:has(input:checked){background:var(--accent);color:var(--paper);border-color:var(--accent)}
.scale label:has(input:focus-visible){outline:2px solid var(--focus);outline-offset:2px}
textarea,input[type=search]{width:100%;font:inherit;color:var(--ink);background:var(--paper);border:1px solid var(--line);padding:12px;min-height:44px}
textarea{min-height:96px;resize:vertical}
label.rl{display:block;font-weight:500;margin:16px 0 6px}
details.qa{border-top:1px solid var(--line);padding:12px 0}
details.qa summary{cursor:pointer;font-weight:500;min-height:32px}
details.qa .a{margin-top:8px}
.ref{font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--moss)}
.aibox{border-left:3px solid var(--gold);background:var(--paper-2,transparent);padding:10px 14px;margin-top:6px}.hit{border-top:1px solid var(--line);padding:12px 0}.hit .where{font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--moss);text-decoration:none}
mark{background:var(--accent-soft);color:var(--ink)}
[hidden]{display:none!important}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
footer.site{max-width:680px;margin:0 auto;padding:24px 0 56px;border-top:1px solid var(--line);font-family:'Public Sans',sans-serif;font-size:13px;color:var(--ink-soft);line-height:1.5}
@media print{.bar,.coach,.go,.pager,.skip{display:none}body{background:#fff;color:#000}}

.scale label{position:relative}
.fig{margin:2em 0;padding:0}.fig img{display:block;max-width:100%;height:auto;margin:0 auto;border:1px solid var(--line);background:#fff}.fig figcaption{font-family:'Public Sans',sans-serif;font-size:14px;line-height:1.5;color:var(--ink-soft);margin-top:.6em}