:root{color-scheme:light;--ink:#173e36;--muted:#5b736c;--teal:#0c9785;--line:#dce9e4;--paper:#f4faf8}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:32px}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-underline-offset:4px}a:focus-visible{outline:3px solid var(--teal);outline-offset:5px;border-radius:4px}.skip{position:fixed;top:-100px;left:20px;background:white;padding:12px;z-index:2}.skip:focus{top:12px}.site-header,main,footer{width:min(1120px,calc(100% - 80px));margin-inline:auto}.site-header{display:flex;align-items:center;justify-content:space-between;min-height:96px;border-bottom:1px solid var(--line)}.wordmark{display:flex;align-items:center;gap:11px;font-size:19px;font-weight:650;letter-spacing:-.5px;text-decoration:none}.header-note{font-size:12px;letter-spacing:.03em;color:var(--muted)}.hero{padding:82px 0 48px}.eyebrow{display:flex;gap:9px;align-items:center;font-size:11px;font-weight:650;letter-spacing:.16em;color:#287467;margin:0 0 23px}.eyebrow span{width:6px;height:6px;border-radius:50%;background:var(--teal)}h1{font-size:clamp(44px,6vw,72px);font-weight:580;line-height:1.08;letter-spacing:-3.5px;margin:0 0 22px}h1 span{color:var(--teal)}.intro{font-size:19px;line-height:1.65;color:var(--muted);margin:0}.updated{font-size:12px;color:var(--muted);margin:28px 0 0}.updated time{color:var(--ink);margin-left:8px}.principles{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);border-radius:18px;background:#fff;overflow:hidden}.principles>div{padding:25px 28px}.principles>div+div{border-left:1px solid var(--line)}.principle-number{font-size:11px;letter-spacing:.1em;color:var(--teal)}.principles h2{font-size:16px;letter-spacing:-.25px;margin:15px 0 8px}.principles p{font-size:13px;color:var(--muted);line-height:1.65;margin:0;max-width:28ch}.reading-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:72px;padding:64px 0 40px}aside nav{position:sticky;top:30px}.nav-title{font-size:10px;font-weight:700;letter-spacing:.15em;color:var(--muted);margin:0 0 19px}nav ol{list-style:none;counter-reset:toc;padding:0;margin:0}nav li{counter-increment:toc;margin-bottom:15px}nav a{display:flex;gap:12px;font-size:12px;line-height:1.5;text-decoration:none;color:var(--muted)}nav a:before{content:counter(toc,decimal-leading-zero);font-size:10px;color:#91a79f;padding-top:2px}nav a:hover{color:var(--teal)}article{min-width:0}article section{padding:0 0 30px;margin:0 0 31px;border-bottom:1px solid var(--line);scroll-margin-top:30px}article section:last-child{border:0;margin-bottom:0}.section-number{font-size:10px!important;font-weight:650;letter-spacing:.13em;color:var(--teal)!important;margin:0 0 11px!important}article h2{font-size:26px;font-weight:620;letter-spacing:-.65px;line-height:1.25;margin:0 0 20px}article h3{font-size:16px;font-weight:650;line-height:1.5;margin:23px 0 8px}article p,article li{color:#526b62;font-size:15px;line-height:1.85;overflow-wrap:break-word}article p{margin:0 0 14px}article p:last-child{margin-bottom:0}article ul{padding-left:21px;margin:0 0 18px}article li{padding-left:5px;margin-bottom:7px}article li::marker{color:var(--teal)}.callout{padding:22px 24px;margin-top:22px;background:#e8f3ee;border-left:3px solid var(--teal);border-radius:0 10px 10px 0}.callout strong{font-size:14px}.callout p{font-size:14px;margin-top:9px}footer{display:flex;align-items:center;justify-content:space-between;gap:20px;border-top:1px solid var(--line);padding:26px 0 38px;color:var(--muted);font-size:12px}footer a{text-decoration:none}footer a span{margin-left:6px}.not-found{min-height:75vh}.not-found h1{font-size:52px}
@media(max-width:860px){.site-header,main,footer{width:calc(100% - 48px)}.reading-layout{grid-template-columns:180px minmax(0,1fr);gap:36px}.principles>div{padding:23px 20px}.hero{padding-top:64px}}
@media(max-width:640px){.site-header,main,footer{width:calc(100% - 40px)}.site-header{min-height:76px}.header-note{font-size:10px}.hero{padding:48px 0 30px}h1{font-size:44px;letter-spacing:-2px}.intro{font-size:16px}.desktop-break{display:none}.eyebrow{font-size:9px;letter-spacing:.12em;margin-bottom:20px}.updated{font-size:11px;margin-top:22px}.principles{grid-template-columns:1fr;border-radius:14px}.principles>div{padding:18px 20px;display:grid;grid-template-columns:25px 1fr;column-gap:10px}.principles>div+div{border-left:0;border-top:1px solid var(--line)}.principle-number{grid-row:1/3;padding-top:2px}.principles h2{margin:0 0 6px;font-size:15px}.principles p{grid-column:2;font-size:12px;max-width:none}.reading-layout{display:block;padding-top:35px}aside{margin-bottom:38px;padding-bottom:25px;border-bottom:1px solid var(--line)}aside nav{position:static}nav ol{display:grid;grid-template-columns:1fr 1fr;gap:13px 18px}nav li{margin:0}nav a{font-size:11px;gap:7px}.nav-title{margin-bottom:16px}article h2{font-size:24px}article p,article li{font-size:14px;line-height:1.85}article h3{font-size:15px}.callout{padding:18px}.callout p{font-size:13px}footer{font-size:10px;padding-bottom:28px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
@media print{body{background:white;color:black}.site-header,aside,.principles,footer,.skip{display:none}main{width:100%}.hero{padding:0 0 24px}.reading-layout{display:block;padding:0}article section{break-inside:avoid}article p,article li,.intro{color:#222}.callout{background:white;border:1px solid #aaa}h1{font-size:36px}}