/* The Double Edge — Damon C. Sloane · shared design system
   Display: Fraunces (literary, high-craft) · Body: Georgia · Labels: system sans
   Palette: dark, amber accent. Used by index.html + books/*.html */

:root{
  --bg:#0E0F13; --panel:#15161C; --panel-2:#1C1D26; --line:#292A33;
  --fg:#F3ECDB; --fg-dim:#DCD6C7; --muted:#9A958A; --faint:#6F6A60;
  --accent:#E89640; --accent-2:#F4AC5E; --btnfg:#14100A;
  --serif:Georgia,'Iowan Old Style','Times New Roman',serif;
  --display:'Fraunces',Georgia,serif;
  --sans:ui-sans-serif,system-ui,-apple-system,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  --wrap:1140px; --r:16px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--serif);font-size:18px;line-height:1.65;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
a{color:inherit;text-underline-offset:3px;text-decoration-color:rgba(232,150,64,.45)}
img{max-width:100%;display:block}
p{margin:0 0 1.1rem}
.sub{color:var(--fg-dim)}

/* type */
.eyebrow{font-family:var(--sans);text-transform:uppercase;letter-spacing:.24em;font-size:.7rem;font-weight:600;color:var(--accent)}
h1,h2,h3,h4{font-family:var(--display);font-weight:600;line-height:1.05;margin:0;letter-spacing:-.01em}
h1{font-weight:900}
h2.big{font-size:clamp(2rem,4.6vw,3.2rem)}
em.hl{color:var(--accent);font-style:italic}

/* nav */
header.bar{position:sticky;top:0;z-index:30;background:rgba(14,15,19,.9);backdrop-filter:saturate(140%) blur(10px);border-bottom:1px solid var(--line)}
.bar .wrap{display:flex;align-items:center;justify-content:space-between;height:60px}
.mark{font-family:var(--sans);font-weight:700;letter-spacing:.16em;text-transform:uppercase;font-size:.8rem;text-decoration:none}
.mark span{color:var(--accent)}
.bar nav{display:flex;gap:26px;align-items:center}
.bar nav a{font-family:var(--sans);font-size:.82rem;letter-spacing:.02em;color:var(--muted);text-decoration:none}
.bar nav a:hover{color:var(--fg)}
.bar nav a.navcta{color:var(--accent)}

/* buttons */
.btn{display:inline-block;font-family:var(--sans);font-weight:700;font-size:.98rem;text-decoration:none;border-radius:12px;padding:15px 26px;letter-spacing:.01em;transition:.15s;cursor:pointer;border:0}
.btn.primary{background:var(--accent);color:var(--btnfg)}
.btn.primary:hover{background:var(--accent-2);transform:translateY(-1px)}
.btn.ghost{border:1px solid #3b3b45;color:var(--fg);background:transparent}
.btn.ghost:hover{border-color:var(--fg)}
.btn.block{display:block;text-align:center;width:100%}

/* price */
.price{font-family:var(--sans);font-size:1rem;display:inline-flex;align-items:baseline;gap:9px;flex-wrap:wrap}
.price s{color:var(--muted);font-weight:500}
.price strong{color:var(--accent);font-weight:800;font-size:1.2rem}
.price em{font-style:normal;color:var(--muted);font-size:.78rem;letter-spacing:.03em;text-transform:uppercase}

/* sections */
section{padding:88px 0;border-bottom:1px solid var(--line)}
.lede{max-width:60ch}

/* hero (home) */
.hero{padding:96px 0 84px;background:radial-gradient(115% 80% at 8% -10%, rgba(232,150,64,.12), transparent 55%);border-bottom:1px solid var(--line)}
.hero h1{font-size:clamp(2.7rem,7vw,5.6rem);max-width:17ch;margin:.35em 0 0}
.hero .sub{font-size:clamp(1.08rem,2vw,1.34rem);max-width:58ch;margin:1.4rem 0 0}
.cta-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:2rem;align-items:center}
.microtrust{font-family:var(--sans);font-size:.85rem;color:var(--muted);margin-top:1.6rem}
.microtrust b{color:var(--fg);font-weight:600}

/* book grid (home) */
.books-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-top:52px}
.bookcard{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:22px;display:flex;flex-direction:column}
.bookcard .kicker{font-family:var(--sans);font-size:.72rem;text-transform:uppercase;letter-spacing:.14em;color:var(--muted);margin-bottom:16px}
.bookcard img{border-radius:9px;box-shadow:0 16px 36px rgba(0,0,0,.5);margin-bottom:18px}
.bookcard h3{font-size:1.4rem;margin-bottom:6px}
.bookcard .st{color:var(--muted);font-size:.88rem;line-height:1.4;margin-bottom:12px}
.bookcard .hook{font-size:1rem;color:var(--fg-dim);flex:1;margin-bottom:16px}
.bookcard .price{margin-bottom:16px}
.cardcta{display:flex;gap:16px;align-items:center;flex-wrap:wrap}
.cardcta a.more{font-family:var(--sans);font-weight:700;font-size:.92rem;color:var(--accent);text-decoration:none}
.cardcta a.amz{font-family:var(--sans);font-size:.86rem;color:var(--muted);text-decoration:none}
.cardcta a.amz:hover,.cardcta a.more:hover{color:var(--fg)}

/* generic split + callout */
.split{display:grid;grid-template-columns:1fr 1.05fr;gap:60px;align-items:start}
.callout{background:var(--panel);border-left:3px solid var(--accent);border-radius:0 12px 12px 0;padding:22px 26px;color:var(--fg-dim);font-size:1.12rem}
.callout strong{color:var(--fg)}

/* book page hero */
.bookhero{padding:64px 0 56px;background:radial-gradient(90% 70% at 88% -20%, rgba(232,150,64,.10), transparent 55%)}
.bookhero .grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.bookhero .cover{border-radius:12px;box-shadow:0 30px 70px rgba(0,0,0,.6);max-width:340px;margin-left:auto}
.bookhero h1{font-size:clamp(2.2rem,4.8vw,3.7rem);margin:.28em 0 .18em}
.bookhero .st{font-family:var(--serif);color:var(--muted);font-size:1.1rem;font-style:italic;margin-bottom:1.1rem}
.crumb{font-family:var(--sans);font-size:.8rem;color:var(--muted);text-decoration:none;letter-spacing:.02em}
.crumb:hover{color:var(--fg)}
.buybar{display:flex;gap:16px;align-items:center;flex-wrap:wrap;margin:1.5rem 0 .8rem}
.freehint{font-family:var(--sans);font-size:.82rem;color:var(--muted)}

/* outcomes list */
ul.gains{list-style:none;padding:0;margin:8px 0 0;display:grid;gap:16px}
ul.gains li{position:relative;padding-left:34px;font-size:1.1rem;color:var(--fg-dim)}
ul.gains li::before{content:"\2192";position:absolute;left:0;top:0;color:var(--accent);font-family:var(--sans);font-weight:700}

/* how it works cards */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:36px}
.step{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:24px}
.step .n{font-family:var(--display);font-weight:900;font-size:1.6rem;color:var(--accent);line-height:1}
.step h4{font-size:1.12rem;margin:12px 0 8px}
.step p{color:var(--muted);font-size:.98rem;margin:0}

/* price band */
.band{background:linear-gradient(180deg,var(--panel),var(--panel-2));border:1px solid var(--line);border-radius:var(--r);padding:34px 32px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;margin-top:12px}
.band .pl{max-width:46ch}
.band h3{font-size:1.5rem;margin-bottom:6px}
.band p{color:var(--muted);margin:0;font-size:.98rem}

/* related */
.related{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:36px}
.rel{display:flex;gap:16px;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px;text-decoration:none;align-items:center}
.rel:hover{border-color:#3b3b45}
.rel img{width:60px;border-radius:6px;box-shadow:0 8px 18px rgba(0,0,0,.5)}
.rel .rt{font-family:var(--sans);font-size:.74rem;color:var(--muted);text-transform:uppercase;letter-spacing:.12em}
.rel h4{font-size:1.08rem;margin:4px 0 2px}
.rel span.go{font-family:var(--sans);font-size:.82rem;color:var(--accent)}

/* newsletter */
.dispatch{background:var(--panel)}
.signup{display:grid;grid-template-columns:1fr 1fr auto;gap:12px;max-width:660px;margin-top:24px}
.signup input{background:#0E0F13;border:1px solid #33333d;border-radius:10px;color:var(--fg);font-family:var(--serif);font-size:1rem;padding:14px 15px}
.signup input:focus{outline:2px solid var(--accent);border-color:var(--accent)}
.signup button{white-space:nowrap}
.nospam{font-family:var(--sans);font-size:.8rem;color:var(--muted);margin-top:12px}

/* footer */
footer{padding:52px 0;color:var(--muted)}
footer .wrap{display:flex;flex-wrap:wrap;gap:20px;justify-content:space-between;align-items:flex-start}
footer a{color:var(--muted);text-decoration:none;font-family:var(--sans);font-size:.85rem}
footer a:hover{color:var(--fg)}
.fnav{display:flex;gap:20px;flex-wrap:wrap}
.foot-tag{font-family:var(--display);font-style:italic;color:var(--fg-dim);margin-top:6px}
.copyright{width:100%;margin-top:8px;font-family:var(--sans);font-size:.74rem;color:var(--faint)}

@media(max-width:900px){
 .books-grid,.steps{grid-template-columns:1fr}
 .books-grid{max-width:440px;margin-inline:auto}
 .split,.bookhero .grid{grid-template-columns:1fr;gap:32px}
 .bookhero .cover{margin:0 auto;max-width:240px}
 .bookhero .grid .txt{order:2}
 .related,.signup{grid-template-columns:1fr}
 .bar nav a:not(.navcta){display:none}
 section,.hero{padding:60px 0}
}
/* prevent layout shift: cover art is 1600x2560 */
.bookcard img,.bookhero .cover,.rel img{aspect-ratio:1600/2560;height:auto}
/* FAQ accordion */
.faq{margin-top:26px;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{font-family:var(--display);font-weight:600;font-size:1.16rem;padding:20px 0;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:18px;align-items:baseline;color:var(--fg)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--accent);font-family:var(--sans);font-weight:700;font-size:1.4rem;line-height:1}
.faq details[open] summary::after{content:"\2013"}
.faq details p{margin:0 0 22px;color:var(--fg-dim);max-width:72ch;font-size:1.05rem}

/* honeypot — off-screen, out of the grid flow (bots fill it, humans don't) */
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}

/* newsletter success state */
.signup-thanks{max-width:660px;margin-top:24px;background:var(--panel-2);border:1px solid var(--line);border-radius:var(--r);padding:24px 26px}
.signup-thanks h3{font-family:var(--display);font-size:1.5rem;margin:8px 0 6px}
.signup-thanks p{color:var(--fg-dim);margin:0}