:root{
  --paper:#FBFAF7; --paper-2:#F1EEE7; --board:#8E2F2A; --board-dk:#6E2320;
  --ink:#141311; --ink-2:#3C3A35; --ink-soft:#6B6862; --line:#DDD8CD;
  --gold:#A8853C;
}
*{box-sizing:border-box}
body{margin:0;background:var(--paper);color:var(--ink);
  font-family:"Source Sans 3",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:17.5px;line-height:1.62;-webkit-font-smoothing:antialiased}
a{color:var(--board)}
.wrap{max-width:1060px;margin:0 auto;padding:0 22px}
.col{max-width:648px;margin:0 auto}
h1,h2,h3{font-family:"Libre Baskerville",Georgia,serif;font-weight:700;margin:0;line-height:1.14;letter-spacing:-.005em}
h1{font-size:clamp(32px,5.2vw,54px);line-height:1.06}
h2{font-size:clamp(25px,3.4vw,34px)}
h3{font-size:20px}
p{margin:0 0 17px}
.mono{font-family:"IBM Plex Mono",ui-monospace,monospace;font-size:11px;letter-spacing:.16em;text-transform:uppercase}

.nav{display:flex;align-items:center;justify-content:space-between;padding:20px 0;border-bottom:1px solid var(--line)}
.logo{font-family:"Libre Baskerville",Georgia,serif;font-weight:700;font-size:19px;color:var(--ink);text-decoration:none}
.logo em{font-style:italic;color:var(--board)}
.nav a.lnk{color:var(--ink-2);text-decoration:none;font-size:14.5px;margin-left:20px}
.nav a.lnk:hover{color:var(--board)}

.hero{padding:64px 0 70px;background:var(--paper)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero p.sub{font-size:19.5px;color:var(--ink-soft);margin-top:20px;max-width:40ch}
.kicker{color:var(--board);margin-bottom:18px}

/* the book object */
.bookwrap{perspective:1100px}
.book{width:100%;max-width:310px;margin:0 auto;aspect-ratio:2/3;background:var(--board);
  border-radius:3px 6px 6px 3px;box-shadow:0 22px 44px rgba(20,19,17,.28), inset 12px 0 0 rgba(0,0,0,.16);
  transform:rotateY(-11deg) rotateX(2deg);padding:38px 30px 26px;color:#F6EFE2;display:flex;flex-direction:column}
.book .bmono{font-family:"IBM Plex Mono",monospace;font-size:10px;letter-spacing:.22em;text-transform:uppercase;color:#DEB86A}
.book .btitle{font-family:"Libre Baskerville",Georgia,serif;font-size:29px;line-height:1.16;margin-top:auto}
.book .brule{height:1px;background:rgba(246,239,226,.4);margin:18px 0}
.book .bname{font-size:14px;letter-spacing:.03em;color:#EBD9BA}
.book .bfoot{margin-top:auto;font-size:11.5px;color:#D9BE8E;letter-spacing:.06em}

.cta{display:inline-block;background:var(--board);color:#FDF9F2;font-weight:600;text-decoration:none;
  padding:15px 28px;border:none;border-radius:2px;cursor:pointer;font-size:16.5px;font-family:inherit}
.cta:hover{background:var(--board-dk)}
.cta.ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.cta.ghost:hover{border-color:var(--board);color:var(--board)}
.cta-row{display:flex;gap:14px;flex-wrap:wrap;align-items:center;margin-top:30px}
.small{font-size:13.5px;color:var(--ink-soft)}

section{padding:60px 0;border-top:1px solid var(--line)}
section.tint{background:var(--paper-2)}
.lede{font-size:20px;color:var(--ink-soft)}
.chapters{counter-reset:ch;margin-top:28px}
.chapters div{display:flex;gap:18px;padding:14px 0;border-bottom:1px solid var(--line);align-items:baseline}
.chapters span{font-family:"IBM Plex Mono",monospace;font-size:11px;color:var(--gold);min-width:32px}
.chapters b{font-weight:600}
.chapters em{font-style:normal;color:var(--ink-soft);font-size:15px}

.grid3{display:grid;gap:24px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));margin-top:32px}
.card{background:#fff;border:1px solid var(--line);padding:22px}
.card h3{margin-bottom:8px;font-size:18px}
.card p{margin:0;font-size:15.5px;color:var(--ink-soft)}
.card .n{color:var(--gold);font-family:"IBM Plex Mono",monospace;font-size:10.5px;letter-spacing:.16em;display:block;margin-bottom:10px}

/* chart summary */
.chartbox{background:#fff;border:1px solid var(--line);padding:0;margin:0 0 30px}
.chartbox .top{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:1px;background:var(--line)}
.chartbox .top div{background:#fff;padding:16px 18px}
.chartbox b{display:block;font-family:"IBM Plex Mono",monospace;font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:5px;font-weight:500}
.chartbox strong{font-family:"Libre Baskerville",Georgia,serif;font-size:19px;font-weight:700;display:block;line-height:1.2}
.centers{display:flex;flex-wrap:wrap;gap:7px;padding:18px}
.pill{font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.08em;padding:5px 10px;border:1px solid var(--line);color:var(--ink-soft);text-transform:uppercase}
.pill.on{background:var(--ink);color:#FBFAF7;border-color:var(--ink)}
.chan{padding:0 18px 18px;font-size:14.5px;color:var(--ink-soft)}

/* forms */
.form{background:#fff;border:1px solid var(--line);padding:30px}
label{display:block;font-weight:600;font-size:14.5px;margin:0 0 7px}
.hint{font-size:13.5px;color:var(--ink-soft);margin:-2px 0 10px}
input[type=text],input[type=email],input[type=date],input[type=time]{width:100%;padding:13px 14px;
  border:1px solid var(--line);background:#fff;font-family:inherit;font-size:16px;border-radius:2px;color:var(--ink)}
input:focus{outline:2px solid var(--board);outline-offset:1px}
.field{margin-bottom:20px}
.chk{display:flex;gap:11px;align-items:flex-start;font-size:14.5px;line-height:1.45}
.chk input{margin-top:3px;width:17px;height:17px;flex:0 0 auto}
.err{color:var(--board);font-size:14px;margin-top:10px}

/* book text */
.read{background:#fff;border:1px solid var(--line);padding:38px 40px 44px}
.read h3{font-size:25px;margin:38px 0 14px;color:var(--ink)}
.read h3:first-child{margin-top:0}
.read h4{font-family:"Source Sans 3",sans-serif;font-size:14px;text-transform:uppercase;letter-spacing:.1em;color:var(--gold);margin:24px 0 8px}
.read p{font-size:17.5px;line-height:1.72;color:var(--ink-2)}
.read ul{padding-left:20px}
.read li{margin-bottom:8px;color:var(--ink-2)}
.buy{background:var(--ink);color:#F6F3EC;padding:32px;margin-top:34px}
.buy .amt{font-family:"Libre Baskerville",Georgia,serif;font-size:46px;line-height:1}
.buy .amt small{font-size:16px;color:#A9A49A;font-family:inherit}
.buy ul{list-style:none;padding:0;margin:20px 0 24px}
.buy li{padding-left:20px;position:relative;margin-bottom:9px;font-size:15.5px;color:#D6D1C7}
.buy li:before{content:"";position:absolute;left:0;top:9px;width:7px;height:1px;background:var(--gold)}
.buy .cta{background:var(--gold);color:#1A1508;width:100%;text-align:center;font-weight:700}
.buy .cta:hover{background:#B8933F}
.subnote{border-top:1px solid #2E2C27;margin-top:20px;padding-top:16px;font-size:12.5px;color:#A9A49A;line-height:1.5}
.spin{width:32px;height:32px;border:2px solid var(--line);border-top-color:var(--board);border-radius:50%;animation:sp 1s linear infinite;margin:0 auto 16px}
@keyframes sp{to{transform:rotate(360deg)}}
@media (prefers-reduced-motion:reduce){.spin{animation:none}}

details{border-bottom:1px solid var(--line);padding:15px 0}
summary{cursor:pointer;font-weight:600;list-style:none;font-size:16.5px}
summary::-webkit-details-marker{display:none}
summary:before{content:"+";color:var(--board);margin-right:10px}
details[open] summary:before{content:"–"}
details p{margin:11px 0 0;color:var(--ink-soft);font-size:15.5px}

footer{background:var(--ink);color:#A9A49A;padding:44px 0;font-size:13.5px;margin-top:0}
footer a{color:#D6D1C7;text-decoration:none;margin-right:18px}
footer a:hover{color:#fff}
.disc{border-top:1px solid #2E2C27;margin-top:20px;padding-top:18px;max-width:72ch}
.legal{max-width:648px;margin:0 auto;padding:52px 22px 68px}
.legal h2{font-size:22px;margin:30px 0 10px}
.legal p,.legal li{color:var(--ink-soft);font-size:16px}
table.adm{border-collapse:collapse;width:100%;font-size:13px;background:#fff}
table.adm th,table.adm td{border:1px solid var(--line);padding:7px 9px;text-align:left}
@media (max-width:860px){.hero-grid{grid-template-columns:1fr;gap:40px}.book{max-width:250px}}
@media (max-width:600px){.read{padding:24px 20px 30px}}