:root{
  --page:#ffffff; --paper:#f7f5f0; --ink:#141c26; --muted:#5b6672;
  --rule:#d8d3c7; --navy:#1d3557; --brick:#8c3b2e; --gold:#b08b3f;
}
*{box-sizing:border-box}
body{margin:0;background:var(--paper);color:var(--ink);
 font-family:"Iowan Old Style","Palatino Linotype",Palatino,"Book Antiqua",Georgia,serif;
 font-size:17.5px;line-height:1.62}
h1,h2,h3,h4{font-family:inherit;font-weight:600;line-height:1.2;letter-spacing:-.005em}
h1{font-size:clamp(1.9rem,1.4rem + 2vw,2.7rem);margin:.1em 0 .4em}
h2{font-size:1.42rem;margin:2rem 0 .6rem;border-bottom:1px solid var(--rule);padding-bottom:.3rem}
h3{font-size:1.13rem;margin:1.5rem 0 .4rem}
p{margin:0 0 1em}
a{color:var(--brick)}
a:hover{color:#6d2c22}
.wrap{max-width:1180px;margin:0 auto;padding:0 26px}

/* masthead */
.mast{background:var(--navy);color:#f3efe6}
.mast .wrap{display:flex;align-items:baseline;gap:26px;flex-wrap:wrap;padding-top:14px;padding-bottom:14px}
.mast a{color:#f3efe6;text-decoration:none}
.mast .name{font-size:1.28rem;letter-spacing:.02em}
.mast .name span{color:var(--gold)}
.mast nav{margin-left:auto;display:flex;gap:22px;flex-wrap:wrap;font-size:.95rem}
.mast nav a{border-bottom:1px solid transparent;padding-bottom:2px}
.mast nav a:hover,.mast nav a[aria-current]{border-color:var(--gold)}
.strap{background:var(--navy);color:#c9d4e2;border-top:1px solid rgba(255,255,255,.13)}
.strap .wrap{padding:7px 26px;font-size:.82rem;letter-spacing:.06em;text-transform:uppercase}

/* two column reading layout */
.sheet{display:grid;grid-template-columns:230px minmax(0,1fr);gap:46px;margin:34px 0 10px;align-items:start}
@media(max-width:880px){.sheet{grid-template-columns:1fr;gap:18px}}
.rail{position:sticky;top:22px;font-size:.9rem;border-right:1px solid var(--rule);padding-right:18px}
@media(max-width:880px){.rail{position:static;border-right:0;border-bottom:1px solid var(--rule);padding:0 0 14px}}
.rail b{display:block;font-size:.76rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:8px}
.rail ol{list-style:none;margin:0;padding:0;counter-reset:c}
.rail li{margin:0 0 6px;counter-increment:c}
.rail li a{text-decoration:none;color:var(--ink)}
.rail li a:before{content:counter(c,decimal-leading-zero) "  ";color:var(--gold);font-variant-numeric:tabular-nums}
.rail li a:hover{color:var(--brick)}
.rail li a[aria-current]{color:var(--brick);font-weight:600}

.col{background:var(--page);border:1px solid var(--rule);padding:34px 40px 40px;box-shadow:0 1px 0 rgba(20,28,38,.04)}
@media(max-width:620px){.col{padding:22px 20px 26px}}
.chapno{font-size:.76rem;letter-spacing:.14em;text-transform:uppercase;color:var(--gold)}
.lede{font-size:1.12rem;color:#39424e}
.rule{border:0;border-top:1px solid var(--rule);margin:30px 0}

/* figures */
figure.fig{margin:24px 0;border:1px solid var(--rule);background:var(--paper);padding:18px}
figure.fig svg{display:block;width:100%;max-width:560px;height:auto;margin:0 auto}
figure.fig figcaption{font-size:.85rem;color:var(--muted);margin-top:10px;border-top:1px solid var(--rule);padding-top:8px}

/* marginal note */
.note{border-left:3px solid var(--gold);padding:2px 0 2px 16px;margin:22px 0;color:#39424e}
.note b{display:block;font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}

/* definition list */
dl.defs{margin:18px 0}
dl.defs dt{font-weight:600;margin-top:14px}
dl.defs dd{margin:2px 0 0;color:#39424e}

table{border-collapse:collapse;width:100%;margin:18px 0;font-size:.95rem}
th,td{border-bottom:1px solid var(--rule);padding:9px 10px;text-align:left;vertical-align:top}
th{font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);border-bottom:2px solid var(--rule)}
.tablewrap{overflow-x:auto}

ul,ol{margin:0 0 1.05em;padding-left:1.2em}
li{margin:0 0 .4em}

/* index grid */
.index{list-style:none;margin:22px 0;padding:0;counter-reset:x}
.index li{counter-increment:x;border-top:1px solid var(--rule);padding:14px 0;display:grid;grid-template-columns:46px 1fr;gap:16px}
.index li:last-child{border-bottom:1px solid var(--rule)}
.index .n{color:var(--gold);font-variant-numeric:tabular-nums}
.index a{text-decoration:none;font-weight:600;color:var(--navy)}
.index a:hover{color:var(--brick)}
.index p{margin:.2em 0 0;font-size:.95rem;color:#4a545f}

.cta{background:var(--navy);color:#eef2f7;padding:22px 26px;margin:30px 0}
.cta h2{border:0;color:#fff;margin:0 0 .4rem;font-size:1.2rem}
.cta a{color:#f0c675}

.foot{background:#111923;color:#aebbc9;margin-top:52px;padding:30px 0 40px;font-size:.9rem}
.foot a{color:#dfe6ee;text-decoration:none}
.foot a:hover{color:#f0c675}
.foot .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:26px}
@media(max-width:760px){.foot .cols{grid-template-columns:1fr}}
.foot h4{margin:0 0 .5rem;color:#fff;font-size:.98rem}
.foot ul{list-style:none;margin:0;padding:0}
.foot li{margin:0 0 5px}
.foot .end{margin-top:24px;padding-top:14px;border-top:1px solid #26303c;font-size:.82rem}