/* Shared reading theme. Loaded last so self-contained tools keep their behavior. */
@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,400;0,9..144,500;0,9..144,600;1,9..144,400;1,9..144,500&family=Instrument+Sans:wght@400;500;600;700&display=swap');
:root{--bg:#f4f1e8;--bg-2:#e9ebdf;--bg-3:#dde2d0;--bg-warm:#efe1cc;--fg:#243b2b;--fg-2:#4f5e4b;--fg-3:#626c58;--fg-4:#67715e;--accent:#38603d;--accent-2:#426646;--warn:#945019;--danger:#ac3e36;--phys:#326174;--line:#d5d8c9;--line-2:#b6bfa9;--link:#8b452a;--sans:'Instrument Sans',Arial,sans-serif;--serif:'Fraunces',Georgia,serif}
html,body{background:var(--bg);color:var(--fg)}::selection{background:#e3bf91;color:var(--fg)}a{border-bottom-color:#b9bea9}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #bd562c;outline-offset:4px}.ab-header{width:min(1208px,calc(100% - 72px));min-height:88px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:24px;border-bottom:1px solid var(--line);font-family:var(--sans);line-height:1.3}.ab-header .ab-brand{display:inline-flex;align-items:center;gap:9px;letter-spacing:-1.2px;font-size:27px;font-weight:600;color:var(--fg);border:0;text-decoration:none}.ab-header .ab-brand span{font-size:37px;color:#bd562c;line-height:1}.ab-header nav{display:flex;align-items:center;gap:27px;font-size:12px}.ab-header nav a{color:var(--fg);border:0;padding:12px 0}.ab-header nav a:hover{color:#bd562c}.ab-header nav a[aria-current=page]{border-bottom:1px solid var(--fg)}.container{padding-top:65px;max-width:900px}.container>.masthead{margin-bottom:48px}.container>.masthead h1{font-size:clamp(40px,5.9vw,68px);font-weight:400;line-height:1.08;letter-spacing:-2px}.container>.masthead h1 em{font-weight:400;font-style:italic;color:#a44e2a}.container h2{font-weight:400}.container .lede{font-family:var(--sans);font-size:19px;line-height:1.75}.container .eyebrow{font-size:10px}.container .hero-stats{background:var(--bg-2);padding:27px;gap:23px}.container .hero-stat .ratio{font-family:var(--serif);font-size:49px}.container .hero-stat .vs{font-family:var(--sans);font-size:13px}.container .toc{border-radius:0}.container .pilot,.container .card,.container .dials,.container .dw-hero{border-radius:2px}.shell{min-height:calc(100dvh - 88px)}.topbar{background:var(--bg)}.stage-wrap{padding-block:35px}.shell h1.lead{font-size:clamp(36px,5.5vw,58px);font-weight:400}.shell .tile,.shell .gcard{border-radius:2px}.shell .btn.primary{color:var(--bg)}.wrap>.dials{border-radius:2px}.wrap>h1{font-size:36px;font-weight:400}.node text{fill:var(--fg-2)}.node.hot text{fill:#8b452a}.node.clean text{fill:#326174}input[type=range]{accent-color:var(--accent)}
@media(max-width:640px){.ab-header{width:calc(100% - 40px);min-height:76px;gap:12px}.ab-header .ab-brand{font-size:23px}.ab-header .ab-brand span{font-size:30px}.ab-header nav{gap:15px;font-size:10px}.ab-header nav a:nth-child(2){display:none}.container{padding:39px 20px 65px}.container>.masthead h1{font-size:40px;letter-spacing:-1.3px}.container .lede{font-size:17px}.container .hero-stats{padding:20px;gap:25px}.container .hero-stat .ratio{font-size:42px}.shell{min-height:calc(100dvh - 76px)}.stage-wrap{padding-block:25px}.wrap>h1{font-size:31px}}
.shell .btn.primary:hover{background:#426646}.shell .btn.primary:disabled{background:var(--bg-3);color:var(--fg-3)}.ab-header nav a{white-space:nowrap}
@media(max-width:440px){.ab-header nav a:first-child{display:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}
@media print{.ab-header nav{display:none}.ab-header{width:100%;min-height:50px}.container{padding-top:25px}.container>.masthead h1{font-size:35px}}