:root{--void:#050F1B;--navy:#0B1E36;--navy2:#10294a;--gold:#C2A24A;--gold-soft:#D8BE78;--line:rgba(194,162,74,.32);--text:#e7ecf3;--mute:#a9b7c9;--white:#fff}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;background:var(--void);color:var(--text);line-height:1.68;font-size:17px;-webkit-font-smoothing:antialiased}
h1,h2,h3,.serif{font-family:Georgia,"Times New Roman",serif;font-weight:400;color:var(--white);line-height:1.25}
h1{font-size:clamp(2rem,6vw,3.2rem);margin-bottom:.6em}
h2{font-size:clamp(1.6rem,4.2vw,2.2rem);margin:0 0 .6em}
h3{font-size:1.25rem;margin-bottom:.4em}
p{margin-bottom:1.1em}
a{color:var(--gold-soft)}a:hover{color:var(--white)}
:focus-visible{outline:3px solid var(--gold-soft);outline-offset:3px}
.wrap{width:100%;max-width:1080px;margin:0 auto;padding:0 20px}
.narrow{max-width:760px}
.eyebrow{text-transform:uppercase;letter-spacing:.24em;font-size:.75rem;color:var(--gold);font-weight:600;display:block;margin-bottom:14px}
.skip{position:absolute;left:-999px;top:0;background:var(--gold);color:var(--void);padding:10px 16px;z-index:100}.skip:focus{left:10px;top:10px}
header.site{background:var(--void);border-bottom:1px solid rgba(255,255,255,.07);position:sticky;top:0;z-index:50}
.bar{display:flex;align-items:center;justify-content:space-between;min-height:68px;gap:16px}
.logo{font-family:Georgia,serif;color:var(--white);text-decoration:none;font-size:1.15rem;letter-spacing:.04em;line-height:1.1}
.logo b{color:var(--gold);font-weight:400}
.logo small{display:block;font-family:-apple-system,sans-serif;font-size:.6rem;letter-spacing:.3em;text-transform:uppercase;color:var(--mute);margin-top:3px}
.menu-btn{display:none;background:none;border:1px solid var(--line);color:var(--gold-soft);padding:8px 14px;font-size:.85rem;letter-spacing:.1em;text-transform:uppercase;cursor:pointer}
nav.main ul{list-style:none;display:flex;gap:22px;flex-wrap:wrap}
nav.main a{color:#dfe6ef;text-decoration:none;font-size:.9rem;padding:6px 0;border-bottom:2px solid transparent}
nav.main a:hover,nav.main a[aria-current]{color:var(--gold-soft);border-bottom-color:var(--gold)}
@media(max-width:860px){.menu-btn{display:block}nav.main{display:none;width:100%;order:3}nav.main.open{display:block}.bar{flex-wrap:wrap;padding:10px 0}nav.main ul{flex-direction:column;gap:0;padding-bottom:12px}nav.main a{display:block;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.07)}}
.hero{position:relative;overflow:hidden;padding:72px 0 80px;background:radial-gradient(ellipse at 20% 0%,rgba(194,162,74,.16),transparent 55%),var(--void)}
.hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:48px;align-items:center}
.hero .lead{font-size:1.15rem;color:var(--text);max-width:34em}
@media(max-width:820px){.hero-grid{grid-template-columns:1fr}.hero{padding:48px 0 56px}}
.btn{display:inline-block;background:var(--gold);color:var(--void);font-weight:700;text-decoration:none;padding:14px 28px;letter-spacing:.1em;text-transform:uppercase;font-size:.8rem;border:1px solid var(--gold);cursor:pointer;font-family:inherit;margin:0 10px 10px 0}
.btn:hover{background:transparent;color:var(--gold-soft)}
.btn.ghost{background:transparent;color:var(--gold-soft)}.btn.ghost:hover{background:var(--gold);color:var(--void)}
.btn.off{background:transparent;color:var(--mute);border:1px dashed var(--line);cursor:default}
.btn.off:hover{color:var(--mute)}
section{padding:68px 0}
.alt{background:var(--navy)}
.pagehead{padding:56px 0 40px;background:radial-gradient(ellipse at 80% 0%,rgba(194,162,74,.12),transparent 55%),var(--void);border-bottom:1px solid var(--line)}
.cover{aspect-ratio:2/3;width:100%;max-width:300px;margin:0 auto;background:linear-gradient(160deg,#0f2a4a 0%,#081a30 60%,#050F1B 100%);border:1px solid var(--line);box-shadow:0 24px 50px rgba(0,0,0,.55),inset 0 0 0 8px #050F1B,inset 0 0 0 9px var(--line);display:flex;flex-direction:column;justify-content:space-between;padding:32px 26px;text-align:center;position:relative;overflow:hidden}
.cover:before{content:"";position:absolute;left:50%;top:44%;width:340px;height:340px;transform:translate(-50%,-50%);border-radius:50%;border:1px solid rgba(194,162,74,.2);box-shadow:0 0 0 38px rgba(194,162,74,.04),0 0 0 76px rgba(194,162,74,.03)}
.cover>*{position:relative}
.cover .s{font-size:.6rem;letter-spacing:.3em;text-transform:uppercase;color:var(--gold)}
.cover .t{font-family:Georgia,serif;color:var(--white);font-size:1.95rem;line-height:1.1}
.cover .t em{display:block;font-style:normal;color:var(--gold-soft);font-size:2.3rem;margin-top:6px}
.cover .r{width:46px;height:2px;background:var(--gold);margin:16px auto}
.cover .a{font-size:.72rem;letter-spacing:.24em;text-transform:uppercase;color:var(--text)}
.cover.sm{max-width:170px;padding:18px 14px}.cover.sm .t{font-size:1.05rem}.cover.sm .t em{font-size:1.2rem}.cover.sm .s{font-size:.45rem}.cover.sm .a{font-size:.5rem}.cover.sm:before{display:none}
.cover.c2{--g:#7fb6a8}.cover.c3{--g:#c98a5a}.cover.c4{--g:#9a8fd0}.cover.c5{--g:#d0b86a}
.cover.c2 .t em,.cover.c3 .t em,.cover.c4 .t em,.cover.c5 .t em{color:var(--g)}
.cover.c2 .r,.cover.c3 .r,.cover.c4 .r,.cover.c5 .r{background:var(--g)}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
@media(max-width:820px){.grid3,.grid2{grid-template-columns:1fr}}
.card{border:1px solid var(--line);padding:26px;background:rgba(255,255,255,.02)}
.card p:last-child{margin-bottom:0}
.shelf{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;margin-top:30px}
.shelf a{text-decoration:none;text-align:center;color:var(--text);font-size:.85rem}
.shelf span{display:block;margin-top:10px}
@media(max-width:820px){.shelf{grid-template-columns:repeat(3,1fr)}}
@media(max-width:520px){.shelf{grid-template-columns:repeat(2,1fr)}}
.badge{display:inline-block;font-size:.68rem;letter-spacing:.18em;text-transform:uppercase;border:1px solid var(--line);color:var(--gold-soft);padding:3px 10px;margin-bottom:10px}
.books{display:grid;gap:20px}
.bk{display:grid;grid-template-columns:130px 1fr;gap:24px;border:1px solid var(--line);padding:22px;align-items:center}
@media(max-width:560px){.bk{grid-template-columns:1fr}.bk .cover{margin:0}}
ul.tick{list-style:none}
ul.tick li{padding-left:28px;position:relative;margin-bottom:.7em}
ul.tick li:before{content:"";position:absolute;left:2px;top:.7em;width:12px;height:2px;background:var(--gold)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:10px 0}
@media(max-width:700px){.stats{grid-template-columns:repeat(2,1fr)}}
.stat{border:1px solid var(--line);padding:20px 14px;text-align:center}
.stat b{display:block;font-family:Georgia,serif;font-weight:400;font-size:1.9rem;color:var(--gold-soft);line-height:1.1;margin-bottom:6px}
.stat span{font-size:.85rem;color:var(--mute)}
table{width:100%;border-collapse:collapse;margin:1em 0}
th,td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:top}
th{color:var(--gold-soft);font-weight:600;width:34%}
.excerpt{border-left:3px solid var(--gold);padding:6px 0 6px 24px;font-family:Georgia,serif;font-size:1.08rem;line-height:1.75}
.excerpt h3{margin-bottom:.8em}
form.f{display:grid;gap:16px;max-width:620px}
label{display:block;font-size:.88rem;color:var(--gold-soft);margin-bottom:5px;letter-spacing:.03em}
input,select,textarea{width:100%;background:#0b1b30;border:1px solid #3a4f6b;color:var(--white);padding:12px 14px;font:inherit;border-radius:0}
input:focus,select:focus,textarea:focus{outline:3px solid var(--gold-soft);outline-offset:1px;border-color:var(--gold)}
textarea{min-height:130px;resize:vertical}
.hp{position:absolute;left:-5000px;height:0;overflow:hidden}
.note{font-size:.85rem;color:var(--mute)}
.signup{border:1px solid var(--line);padding:30px;background:rgba(194,162,74,.05)}
.signup form{display:flex;gap:10px;flex-wrap:wrap;margin-top:6px}
.signup input[type=email]{flex:1 1 240px;width:auto}
.signup .btn{margin:0}
footer.site{background:#030A14;border-top:1px solid var(--line);padding:50px 0 30px;font-size:.9rem;color:var(--mute)}
.fgrid{display:grid;grid-template-columns:1.2fr 1fr 1.2fr;gap:36px;margin-bottom:30px}
@media(max-width:820px){.fgrid{grid-template-columns:1fr}}
footer.site h3{font-size:1rem;color:var(--gold-soft);margin-bottom:.7em;font-family:-apple-system,sans-serif;letter-spacing:.14em;text-transform:uppercase;font-size:.75rem}
footer.site ul{list-style:none}footer.site li{margin-bottom:.45em}
footer.site input[type=email]{margin-bottom:10px}
.copy{border-top:1px solid rgba(255,255,255,.08);padding-top:18px;font-size:.8rem}
.center{text-align:center}
.legal h2{font-size:1.35rem;margin-top:1.6em}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* 261011 COS102E additions */
.h3{font-size:1.25rem}
.logo{flex:0 0 auto}
@media(max-width:860px){.bar{padding:10px 20px}}
.sr{position:absolute;left:-5000px}
nav.main ul{gap:4px 18px}nav.main a{font-size:.84rem}
.cover-img{display:block;width:100%;max-width:300px;height:auto;margin:0 auto;border:1px solid var(--line);box-shadow:0 24px 50px rgba(0,0,0,.55)}
.cover-img.sm{max-width:170px;box-shadow:0 12px 26px rgba(0,0,0,.5)}
.covers2{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:start}.covers2 .cover-img{max-width:240px}
.tcover{aspect-ratio:2/3;width:100%;max-width:300px;margin:0 auto;background:radial-gradient(ellipse at 50% 110%,rgba(95,168,224,.22),transparent 60%),linear-gradient(180deg,#02060d 0%,#071427 70%,#0b1e36 100%);border:1px solid var(--line);display:flex;flex-direction:column;align-items:center;padding:16px 10px;text-align:center;color:#fff}
.tcover .s{font-size:.5rem;letter-spacing:.22em;font-weight:700;margin-bottom:10px}
.tcover .pre{font-size:.62rem;letter-spacing:.2em;font-weight:700;min-height:.8em}
.tcover .big{font-family:Impact,"Arial Narrow",sans-serif;font-size:1.35rem;letter-spacing:.02em;line-height:1.05}
.tcover .ln{width:44%;height:2px;background:var(--bk);margin:8px 0}
.tcover .conn{font-size:.62rem;letter-spacing:.24em;font-weight:700}
.tcover .a{margin-top:auto;align-self:flex-start;font-size:.5rem;color:var(--gold-soft)}
.tcover.sm{max-width:170px}.tcover.sm .big{font-size:1rem}.bk .tcover{max-width:130px}.bk .tcover .s{font-size:.42rem}
.shelf .sh{display:block}
.bk{border-left:3px solid var(--bk,var(--gold))}
.bk .es{color:var(--gold-soft);font-style:italic;margin-bottom:.6em}
.bookhead{display:grid;grid-template-columns:300px 1fr;gap:44px;align-items:start}
@media(max-width:820px){.bookhead{grid-template-columns:1fr}.bookhead .cover-img{max-width:220px}}
.subt{font-size:1.1rem;color:var(--text);margin-bottom:.3em}.by{color:var(--gold-soft);letter-spacing:.08em;margin-bottom:1em}
.upd{border:1px solid var(--line);display:inline-block;padding:8px 14px;font-size:.92rem;background:rgba(194,162,74,.06)}
.upd span{color:var(--gold-soft);font-weight:600}
.slots{margin:18px 0 6px}.slots h2{margin-bottom:.5em}
.slotgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
@media(max-width:620px){.slotgrid{grid-template-columns:1fr}}
.slot{border:1px solid var(--line);padding:14px;display:flex;flex-direction:column;gap:2px}
.slot b{color:#fff;font-weight:600}.slot .pr{font-family:Georgia,serif;font-size:1.5rem;color:var(--gold-soft)}
.slot .pr.txt{font-size:1.05rem;padding:6px 0 4px}.slot .wh{font-size:.82rem;color:var(--mute)}.slot .st,.st{font-size:.78rem;letter-spacing:.06em;text-transform:uppercase;color:var(--gold)}
.prods{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:22px}
@media(max-width:900px){.prods{grid-template-columns:1fr}}
ol.prod{list-style:none}ol.prod li{padding:8px 0;border-bottom:1px solid rgba(255,255,255,.07);display:flex;gap:12px}
ol.prod b{font-family:Georgia,serif;color:var(--gold);min-width:1.6em;font-weight:400}
ol.toc{list-style:none}ol.toc li.part{color:var(--gold-soft);margin:14px 0 4px;font-weight:600}
ol.toc ol{list-style:none;margin:4px 0 0}ol.toc ol li{color:var(--text);font-weight:400;padding:3px 0}
ol.toc ol li span{color:var(--mute);margin-right:4px}ol.toc li.tail{margin:6px 0;font-weight:400;color:var(--text)}
table.facts{margin:0 0 24px}table.facts caption{text-align:left;font-family:Georgia,serif;color:#fff;font-size:1.25rem;margin-bottom:6px}
table.facts th{width:38%}
.grid2>div>.card{margin-bottom:20px}
.figband{padding:40px 0;background:#04101e;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.chart{border:1px solid var(--line);background:rgba(11,30,54,.6);padding:18px 18px 12px}
.chart h3{font-size:1.15rem;margin-bottom:2px}.chart .sub{font-size:.85rem;color:var(--mute);margin-bottom:8px}
.chart svg{width:100%;height:auto;display:block}
.chart .src{font-size:.78rem;color:var(--mute);border-top:1px solid rgba(255,255,255,.08);margin-top:8px;padding-top:8px;line-height:1.5}
svg text{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif}
.tl{fill:#dbe3ee;font-size:13px}.tv{fill:#fff;font-size:13px;font-weight:600}.ta{stroke:rgba(255,255,255,.18)}
.excerpt h4{font-family:-apple-system,sans-serif;font-size:.8rem;letter-spacing:.18em;text-transform:uppercase;color:var(--gold);margin:1.4em 0 .5em}
.dl .btn{margin-top:6px}.dlc a{display:block;text-align:center;text-decoration:none;color:var(--text);font-size:.88rem}.dlc span{display:block;margin-top:8px}
/* 261011 COS102I: language switch and the Spanish digest box */
.lang{order:2;font-size:.82rem;letter-spacing:.06em;color:var(--gold-soft);text-decoration:none;border:1px solid var(--line);padding:5px 11px;white-space:nowrap}
.lang:hover{color:#fff;border-color:var(--gold)}
@media(max-width:860px){.lang{order:1;margin-left:auto}.menu-btn{order:2}}
.lang .ls{display:none}
@media(max-width:480px){.lang .lf{display:none}.lang .ls{display:inline}.lang{padding:7px 8px;font-size:.78rem}.bar{gap:8px}.logo{font-size:1rem}.logo small{letter-spacing:.22em}.menu-btn{padding:8px 9px;letter-spacing:.05em}}
.signup .chk{flex:1 1 100%;display:flex;gap:9px;align-items:center;color:var(--text);font-size:.9rem;margin:6px 0 0;letter-spacing:0}
.signup .chk input{width:auto;margin:0}

/* 261030 COS117C: the connected shelf */
.state a{color:#fff;text-decoration:none}.state a:hover{text-decoration:underline}
.also{margin:4px 0 0;font-size:.92rem;color:var(--mute)}.also a{color:var(--gold-soft)}
.prices{margin:0 0 10px;font-size:.92rem;color:var(--mute)}.prices b{color:#fff;font-weight:600}
.bk .more{margin:6px 0 0;font-size:.9rem}
.desk{padding:56px 0}.fgrid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:22px}
.ftile{margin:0;border:1px solid var(--line);background:rgba(255,255,255,.02);display:flex;flex-direction:column}
.ftile .fimg{display:flex;align-items:center;justify-content:center;background:#fff;padding:10px;height:300px}.ftile img{display:block;width:auto;max-width:100%;height:auto;max-height:280px}
.ftile figcaption{padding:12px 14px 14px;font-size:.88rem;line-height:1.45}.ftile figcaption b{display:block;color:#fff;font-weight:600;margin-bottom:4px}
.ftile figcaption span{display:block;color:var(--gold-soft);margin-bottom:6px}.ftile figcaption small{display:block;color:var(--mute);font-size:.78rem}
.fgrid3.small .ftile .fimg{height:240px}.fgrid3.small .ftile img{max-height:220px}.cftoc{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px}
.cftoc a{border:1px solid var(--line);border-radius:999px;padding:5px 14px;font-size:.84rem;color:var(--gold-soft);text-decoration:none}.cftoc small{color:var(--mute)}
.cfbook{padding:34px 0 10px}
@media(max-width:900px){.fgrid3{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:560px){.fgrid3{grid-template-columns:1fr}}

/* 261016 COS106C: the twelve-book site */
.herotext{max-width:46em}
.state{display:inline-block;border-left:3px solid var(--gold);padding:4px 12px;margin:6px 0 14px;color:#fff;font-size:.95rem;background:rgba(194,162,74,.07)}
.shelf6{display:grid;grid-template-columns:1.6fr repeat(5,1fr);gap:16px;align-items:end;margin-top:34px}
.shelf6 .sh{display:block;text-decoration:none;color:var(--text);font-size:.85rem;line-height:1.35}
.shelf6 .sh .cover-img{max-width:100%}
.shelf6 .sh span{display:block;margin-top:8px;min-height:4.1em}.shelf6 .sh em{color:var(--gold-soft);font-style:normal}
@media(max-width:900px){.shelf6{grid-template-columns:repeat(3,1fr)}.shelf6 .sh.first{grid-column:1/-1}.shelf6 .sh.first .cover-img{max-width:220px}}
@media(max-width:480px){.shelf6{grid-template-columns:repeat(2,1fr)}}
.bk>a{display:block}.bk h3 a{color:#fff;text-decoration:none}.bk .state{font-size:.85rem;margin:2px 0 8px}
.shelf2 ol.titles{list-style:none;display:grid;grid-template-columns:repeat(2,1fr);gap:8px 28px;margin:10px 0 16px}
@media(max-width:620px){.shelf2 ol.titles{grid-template-columns:1fr}}
.shelf2 ol.titles li{border-bottom:1px solid rgba(255,255,255,.08);padding:8px 0}.shelf2 ol.titles b{color:var(--gold);font-weight:600;margin-right:10px}
.pnav{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}.pn{text-decoration:none;border:1px solid var(--line);padding:10px 14px;font-size:.9rem}
.pn.next{margin-left:auto}
.buyblock{margin:18px 0 6px}.buygrp h3{font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;color:var(--gold);margin:12px 0 6px}
.buygrp ul{list-style:none;display:flex;flex-wrap:wrap;gap:10px}.buy{display:inline-block;border:1px solid var(--gold);padding:9px 14px;text-decoration:none}
table.facts.series th{width:auto}table.facts.series td:first-child{color:var(--gold);width:3em}
.dlc{margin:14px 0 22px}
.tscroll{overflow-x:auto;max-width:100%}

.post{padding:28px 0 8px}.post p{margin:0 0 16px;line-height:1.72}.post h2{font-size:1.4rem;margin:30px 0 10px}.post .lede{font-size:1.15rem;color:#fff}
.post .meta{color:var(--mute);font-size:.88rem;margin:0 0 18px}.post .chart{margin:24px 0}
.srcs{margin-top:28px;border-top:1px solid var(--line);padding-top:16px}.srcs h2{font-size:1.05rem;margin:0 0 8px}.srcs ul{padding-left:18px}.srcs li{margin:6px 0;font-size:.9rem;line-height:1.5}
.bchips{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 22px}.bchips a{border:1px solid var(--line);border-radius:999px;padding:5px 14px;font-size:.84rem;color:var(--gold-soft);text-decoration:none}
.bchips a[aria-current]{background:var(--gold);border-color:var(--gold);color:#050F1B}
.bgrid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.bcard{border:1px solid var(--line);background:rgba(255,255,255,.02);display:flex;flex-direction:column}
.bcard.lead{grid-column:1/-1}.bcard .chart{margin:0;padding:16px 18px 0;border:0;background:transparent}.bgrid+.note{margin-top:18px}.bcard img{display:block;width:100%;height:auto;aspect-ratio:1200/630;object-fit:cover;border-bottom:1px solid var(--line)}
.bcard .bc{padding:14px 18px 18px}.bcard .meta{color:var(--mute);font-size:.82rem;margin:0 0 6px}.bcard h2{font-size:1.15rem;margin:0 0 8px;line-height:1.3}.bcard.lead h2{font-size:1.45rem}
.bcard h2 a{color:#fff;text-decoration:none}.bcard h2 a:hover{text-decoration:underline}.bcard p{margin:0;font-size:.92rem;line-height:1.55}
@media(max-width:900px){.bgrid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:560px){.bgrid{grid-template-columns:1fr}}
.blist{list-style:none;padding:0;margin:18px 0 0}.blist li{border-bottom:1px solid var(--line);padding:18px 0}.blist h2{font-size:1.3rem;margin:4px 0 6px}.blist .meta{color:var(--mute);font-size:.84rem}

.bcard .gfx{display:block;background:#0b1e36;aspect-ratio:1200/630;overflow:hidden;border-bottom:1px solid var(--line)}.bcard .gfx svg{width:100%;height:100%;display:block}
.bcard .src{display:inline-block;font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--gold-soft);margin-bottom:6px}
.bcard .bc{display:flex;flex-direction:column;flex:1}.bcard .go{margin-top:auto;padding-top:10px;font-size:.84rem}.bchips button{font:inherit;background:none;border:1px solid var(--line);border-radius:999px;padding:5px 14px;font-size:.84rem;color:var(--gold-soft);cursor:pointer}
.bchips button[aria-pressed=true]{background:var(--gold);border-color:var(--gold);color:#050F1B}.bchips .sep{width:100%;height:0}