:root{--ink:#0D1626;--ink-2:#131F35;--panel:#18243D;--brass:#C6A664;--brass-lt:#E4CF94;--line:rgba(198,166,100,.26);--line-cool:#27375A;--paper:#ECEAE3;--muted:#9AA7BD;--muted-2:#74829B}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--ink);color:var(--paper);font-family:'Inter',system-ui,sans-serif;font-size:16px;line-height:1.65}
a{color:var(--brass-lt)}
.wrap{max-width:1020px;margin:0 auto;padding:0 22px}
.eyebrow{font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:.28em;text-transform:uppercase;color:var(--brass)}
h1,h2,h3{font-family:'Fraunces',serif;font-weight:500;line-height:1.12;margin:0}
h1{font-size:clamp(34px,5.4vw,54px)}
h2{font-size:clamp(26px,3.6vw,34px)}
p{margin:0}
header{position:sticky;top:0;z-index:50;background:rgba(13,22,38,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line-cool)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 0;flex-wrap:wrap}
.brand{font-family:'Fraunces',serif;font-size:17px;color:var(--paper);text-decoration:none;white-space:nowrap}
.brand span{color:var(--brass-lt)}
.links{display:flex;gap:20px;align-items:center;flex-wrap:wrap}
.links a{font-size:13.5px;color:var(--muted);text-decoration:none}
.links a:hover,.links a.on{color:var(--paper)}
.links a.on{border-bottom:1px solid var(--brass)}
.btn{display:inline-block;background:var(--brass);color:var(--ink);font-weight:600;font-size:14.5px;padding:11px 20px;border-radius:8px;text-decoration:none;border:none;cursor:pointer}
.btn:hover{background:var(--brass-lt)}
.btn-ghost{display:inline-block;color:var(--paper);border:1px solid var(--line-cool);font-size:14.5px;padding:11px 20px;border-radius:8px;text-decoration:none}
.btn-ghost:hover{border-color:var(--brass)}
section{padding:64px 0;border-bottom:1px solid var(--line-cool)}
.sec-head{font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:.28em;text-transform:uppercase;color:var(--brass);margin-bottom:14px}
.lead{font-size:18px;color:var(--muted);max-width:640px}
.hero{padding:84px 0 72px}
.hero .kicker{margin-bottom:16px}
.hero p.sub{font-size:19px;color:var(--muted);max-width:620px;margin-top:20px}
.hero p.sub b{color:var(--paper);font-weight:500}
.cta-row{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
@media(max-width:860px){.grid3,.grid2{grid-template-columns:1fr}}
.card{background:var(--panel);border:1px solid var(--line-cool);border-radius:12px;padding:24px}
.card .idx{font-family:'IBM Plex Mono',monospace;font-size:11px;color:var(--brass);letter-spacing:.2em}
.card h3{font-size:19px;margin:10px 0 8px}
.card p{font-size:14.5px;color:var(--muted)}
.card a.more{display:inline-block;margin-top:14px;font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--brass-lt);text-decoration:none}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
@media(max-width:860px){.stats{grid-template-columns:repeat(2,1fr)}}
.stat .big{font-family:'Fraunces',serif;font-size:38px;color:var(--brass-lt)}
.stat .lab{font-size:13px;color:var(--muted);margin-top:4px}
.books{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
@media(max-width:860px){.books{grid-template-columns:1fr}}
.book{background:var(--panel);border:1px solid var(--line-cool);border-radius:12px;overflow:hidden;display:flex;flex-direction:column}
.bk-cover{aspect-ratio:668/1059;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:22px;border-bottom:1px solid var(--line-cool)}
.bk-cover-img{padding:0;background:var(--ink-2)}
.bk-cover-img img{width:100%;height:100%;display:block;object-fit:cover}
.bk-series{font-family:'IBM Plex Mono',monospace;font-size:10px;letter-spacing:.4em;text-transform:uppercase;opacity:.75}
.bk-title{font-family:'Fraunces',serif;font-weight:600;font-size:52px;line-height:1;margin-top:4px}
.bk-sub{font-family:'IBM Plex Mono',monospace;font-size:10px;letter-spacing:.32em;text-transform:uppercase;margin-top:8px;opacity:.85}
.bk-part{font-family:'IBM Plex Mono',monospace;font-size:10px;letter-spacing:.22em;text-transform:uppercase;margin-top:16px;padding:4px 12px;border:1px solid currentColor;border-radius:2px}
.bk-tag{font-family:'Fraunces',serif;font-style:italic;font-size:15px;margin-top:10px}
.bk-one .bk-cover{background:#0D1626;color:#E4CF94}
.bk-one .bk-title{color:#ECEAE3}
.bk-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
.bk-name{font-family:'Fraunces',serif;font-size:17px;color:var(--paper)}
.bk-desc{font-size:13.5px;line-height:1.55;color:var(--muted)}
.bk-link{margin-top:auto;font-family:'IBM Plex Mono',monospace;font-size:12px;letter-spacing:.06em;color:var(--brass-lt);text-decoration:none}
.bk-link:hover{text-decoration:underline}
.ladder{display:flex;flex-direction:column}
.rung{display:flex;justify-content:space-between;gap:18px;padding:20px 0;border-bottom:1px dashed var(--line-cool);flex-wrap:wrap}
.rung .l h3{font-size:18px}
.rung .l p{color:var(--muted);font-size:14.5px;margin-top:4px;max-width:520px}
.rung .price{font-family:'IBM Plex Mono',monospace;font-size:13px;color:var(--brass-lt);white-space:nowrap;align-self:center}
.foot-cta{padding:70px 0}
.foot-cta h2{margin-bottom:10px}
footer{padding:34px 0 46px;color:var(--muted-2);font-size:13px}
footer .rowz{display:flex;gap:26px;flex-wrap:wrap;margin-top:10px}
footer a{color:var(--muted);text-decoration:none}
footer a:hover{color:var(--paper)}
.spine{font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted-2)}
:focus-visible{outline:2px solid var(--brass);outline-offset:3px}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
/* fix: nav link color must not override the button's dark text */
.links a.btn,.links a.btn:hover{color:var(--ink)}