/* The book section.
   This one deliberately does NOT wear the site's colors. Everywhere else on
   becharacterdriven.com is cool — indigo for what the program asserts, rust
   for what it costs. The book is paper: warm ground, a brown accent, Georgia
   set at reading size. The palette is lifted from book/revision/_chapter-head.part
   so a chapter reads here exactly as it reads in the manuscript, and so the
   figures drawn against var(--accent) and var(--rule) still resolve.

   The masthead keeps its shape and changes its hue with the rest of the page.
   Walking into the book should feel like walking into a different room of the
   same building, not like arriving at a different building. */
:root{
  --paper:#fbfaf7;
  --surface:#ffffff;
  --ink:#1b1a17;
  --muted:#565048;
  --faint:#8a8177;
  --rule:#ded8ce;
  --hair:#e8e3d9;
  --accent:#7a5c2e;
  --accent-soft:#f3ecdf;
  --serif:Georgia,"Iowan Old Style","Times New Roman",serif;
  --display:"Newsreader",Georgia,"Times New Roman",serif;
  --sans:"IBM Plex Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,sans-serif;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --paper:#14130f;
  --surface:#1b1915;
  --ink:#ece7dd;
  --muted:#a9a196;
  --faint:#7d7468;
  --rule:#33302a;
  --hair:#2b2822;
  --accent:#c9a468;
  --accent-soft:#241d12;
}}
:root[data-theme="dark"]{
  --paper:#14130f;
  --surface:#1b1915;
  --ink:#ece7dd;
  --muted:#a9a196;
  --faint:#7d7468;
  --rule:#33302a;
  --hair:#2b2822;
  --accent:#c9a468;
  --accent-soft:#241d12;
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--serif);
     font-size:18.5px;line-height:1.72;-webkit-font-smoothing:antialiased;}
a{color:var(--accent);}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:2px;}
@media (prefers-reduced-motion:reduce){*{transition:none !important;animation:none !important;}}

/* ── masthead: the site's shape, the book's hue ── */
header.top{border-bottom:1px solid var(--rule);background:var(--surface);}
.top .wrap{max-width:940px;margin:0 auto;padding:16px 22px;display:flex;align-items:center;
           justify-content:space-between;gap:16px;}
.mark{font-family:var(--display);font-size:19px;letter-spacing:-.01em;color:var(--ink);
      text-decoration:none;}
.mark b{font-weight:500;}
.mast-right{display:flex;align-items:center;gap:22px;}
nav{display:flex;gap:20px;font-family:var(--sans);font-size:14px;}
nav a{color:var(--muted);text-decoration:none;}
nav a:hover{color:var(--ink);}
nav a.on{color:var(--ink);font-weight:500;}
.signin{font-family:var(--sans);font-size:13.5px;text-decoration:none;color:var(--accent);
        white-space:nowrap;border:1px solid var(--accent);padding:6px 15px;border-radius:2px;}
.signin:hover{background:var(--accent-soft);}
@media(max-width:620px){ nav{display:none;} }

/* ── the column ── */
.page{max-width:660px;margin:0 auto;padding:0 26px;}
.hero{padding:60px 0 6px;}
.eyebrow{font-family:var(--sans);font-size:11.5px;letter-spacing:.2em;text-transform:uppercase;
         font-weight:700;color:var(--accent);margin:0 0 16px;}
h1{font-family:var(--display);font-size:clamp(34px,6vw,52px);line-height:1.06;margin:0 0 20px;
   font-weight:300;letter-spacing:-.02em;text-wrap:balance;}
.stand{font-size:19px;color:var(--muted);margin:0 0 18px;}
p{margin:0 0 20px;}
.lede{font-size:17px;color:var(--muted);margin:0 0 22px;}
.lab-h{font-family:var(--sans);font-size:11px;letter-spacing:.14em;text-transform:uppercase;
       font-weight:700;color:var(--accent);margin:0 0 10px;}

h2.sec{font-family:var(--display);font-weight:400;font-size:30px;letter-spacing:-.01em;
       margin:56px 0 16px;}

/* ── the free chapter, offered ── */
.offer{border:1px solid var(--accent);background:var(--accent-soft);padding:24px 26px;
       margin:34px 0 0;}
.offer-h{font-family:var(--display);font-weight:400;font-size:31px;line-height:1.1;margin:0 0 12px;}
.offer p{font-size:17px;color:var(--muted);}
.acts{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin:22px 0 0;}
.btn{display:inline-block;font-family:var(--sans);font-size:14.5px;font-weight:500;
     text-decoration:none;padding:10px 20px;border:1px solid var(--accent);border-radius:2px;
     background:var(--accent);color:var(--paper);}
.btn:hover{filter:brightness(1.12);}
.btn.ghost{background:transparent;color:var(--accent);}
.btn.ghost:hover{background:var(--accent-soft);filter:none;}
.meta{font-family:var(--sans);font-size:13px;color:var(--faint);}

.buy{border-top:1px solid var(--rule);margin:34px 0 0;padding:24px 0 0;}
.buy p{font-size:16.5px;color:var(--muted);}

/* ── what changed ── */
.changes{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--rule);
         border:1px solid var(--rule);}
@media(max-width:660px){.changes{grid-template-columns:1fr;}}
.changes > div{background:var(--surface);padding:20px 22px;}
.c-h{font-family:var(--display);font-size:21px;font-weight:400;line-height:1.25;margin:0 0 9px;}
.changes p{font-size:16px;color:var(--muted);margin:0;}

/* ── the three rewritten principles ── */
.rev{border-left:3px solid var(--accent);padding:4px 0 4px 20px;margin:26px 0;}
.rev-t{font-family:var(--sans);font-size:12px;letter-spacing:.13em;text-transform:uppercase;
       font-weight:700;color:var(--accent);margin:0 0 8px;}
.rev-now{font-size:22px;line-height:1.32;margin:0 0 10px;}
.rev-was{font-size:15.5px;color:var(--faint);margin:0 0 10px;}
.rev-was span{font-family:var(--sans);font-size:11.5px;letter-spacing:.09em;text-transform:uppercase;
              font-weight:700;}
.rev-why{font-size:16px;color:var(--muted);margin:0;}

.closing{border-top:1px solid var(--rule);margin:56px 0 0;padding:26px 0 0;}
.closing p{font-size:18px;}

/* ── a chapter, as it reads in the manuscript ── */
.chapter{padding:34px 0 0;}
.crumb{font-family:var(--sans);font-size:13.5px;margin:0 0 32px;}
.crumb a{text-decoration:none;}
.chno{font-family:var(--sans);font-size:12px;letter-spacing:.22em;text-transform:uppercase;
      color:var(--accent);font-weight:700;margin:0 0 6px;}
.chapter h1{font-family:var(--serif);font-size:clamp(30px,6vw,40px);line-height:1.12;
            font-weight:400;margin:0 0 8px;}
.sub{font-family:var(--sans);font-size:13.5px;color:var(--faint);margin:0 0 40px;
     padding-bottom:22px;border-bottom:1px solid var(--rule);}
.drop::first-letter{float:left;font-size:56px;line-height:.86;padding:4px 9px 0 0;
                    font-weight:400;color:var(--accent);}
.chapter h2{font-family:var(--sans);font-size:15px;letter-spacing:.03em;font-weight:700;
            color:var(--ink);margin:44px 0 14px;}
.chapter h3{font-family:var(--sans);font-size:13.5px;letter-spacing:.04em;font-weight:700;
            color:var(--muted);margin:30px 0 10px;}
.term{font-style:italic;}
.rlist{margin:26px 0;}
.r{border-left:3px solid var(--accent);padding:2px 0 2px 18px;margin:22px 0;}
.r b{display:block;font-size:21px;line-height:1.25;}
.d{font-family:var(--sans);font-size:12px;letter-spacing:.13em;text-transform:uppercase;
   color:var(--accent);font-weight:700;margin:3px 0 7px;}
blockquote{margin:26px 0;padding-left:20px;border-left:3px solid var(--rule);color:var(--muted);
           font-style:italic;}
.fig{background:var(--accent-soft);border:1px dashed var(--accent);border-radius:6px;
     padding:16px 18px;margin:28px 0;font-family:var(--sans);font-size:13.5px;color:var(--muted);}
.plate{background:transparent;border:0;padding:0;margin:34px 0;}
.plate svg{width:100%;height:auto;display:block;}
.cap{background:var(--accent-soft);border:1px dashed var(--accent);border-radius:6px;
     padding:12px 16px;font-family:var(--sans);font-size:13.5px;color:var(--muted);}

.after{border-top:1px solid var(--rule);margin:52px 0 0;padding:26px 0 0;}
.after p{font-size:17px;color:var(--muted);}

footer{border-top:1px solid var(--rule);background:var(--surface);margin-top:76px;}
footer .wrap{max-width:940px;margin:0 auto;display:flex;justify-content:space-between;gap:16px;
             flex-wrap:wrap;padding:22px 22px 40px;
             font-family:var(--sans);font-size:13.5px;color:var(--faint);}
footer a{color:var(--muted);text-decoration:none;}
footer a:hover{color:var(--ink);}