/* ============================================================
   Damon C. Sloane — The Double Edge  ·  v3 design system
   Instrument Serif (display) · Newsreader (body) ·
   Space Grotesk (UI) · Space Mono (labels)
   Ember #EA6A3A on near-black. Editorial, charged, cinematic.
   ============================================================ */

:root{
  --bg:#0B0C0F; --bg-2:#101218; --panel:#14161D; --panel-2:#181A22;
  --line:#22242E; --line-2:#2C2E3A;
  --fg:#F1ECE0; --fg-dim:#CFC9BC; --muted:#8C887E; --faint:#615E57;
  --ember:#EA6A3A; --ember-hi:#FF8355; --ember-ink:#120A06;
  --display:'Instrument Serif',Georgia,serif;
  --text:'Newsreader',Georgia,serif;
  --sans:'Space Grotesk',ui-sans-serif,system-ui,sans-serif;
  --mono:'Space Mono',ui-monospace,'SFMono-Regular',monospace;
  --wrap:1180px;
  --ease:cubic-bezier(.16,.84,.44,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--fg);font-family:var(--text);font-size:19px;line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 32px}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
::selection{background:var(--ember);color:var(--ember-ink)}

/* ---- type primitives ---- */
.kicker{font-family:var(--mono);font-size:.72rem;letter-spacing:.22em;text-transform:uppercase;color:var(--ember);font-weight:400}
.kicker .idx{color:var(--muted)}
/* text-wrap: balance evens out heading line lengths; pretty stops single-word
   orphans on the last line of body copy ("…before you spend a / cent."). Both
   are progressive — unsupported browsers just wrap as before, no layout risk. */
h1,h2,h3,h4{font-family:var(--display);font-weight:400;line-height:1;letter-spacing:0;text-wrap:balance}
p,.hook,.fmt,.foot-tag,blockquote{text-wrap:pretty}
.eyebrow{font-family:var(--mono);font-size:.7rem;letter-spacing:.24em;text-transform:uppercase;color:var(--muted)}
em.edge{font-family:var(--display);font-style:italic;color:var(--ember);position:relative}

/* ---- rule motif ---- */
.rule{height:1px;background:var(--line);border:0}
.tick-rule{display:flex;align-items:center;gap:0}
.tick-rule::before{content:"";width:34px;height:2px;background:var(--ember)}
.tick-rule::after{content:"";flex:1;height:1px;background:var(--line)}

/* ---- top bar ---- */
header.bar{position:sticky;top:0;z-index:40;background:rgba(11,12,15,.72);backdrop-filter:saturate(150%) blur(14px);border-bottom:1px solid var(--line)}
.bar .wrap{display:flex;align-items:center;justify-content:space-between;height:66px}
/* white-space:nowrap is load-bearing, not cosmetic: .mark is a flex container,
   so in any squeezed column the anonymous text item shrinks and the wordmark
   breaks across lines ("Damon / C. / Sloane" was rendering in the footer at
   390px). flex-shrink:0 keeps the blade from collapsing with it. */
.mark{font-family:var(--sans);font-weight:700;letter-spacing:.02em;font-size:.94rem;display:flex;align-items:center;gap:10px;white-space:nowrap}
.mark .blade{width:22px;height:2px;flex:0 0 22px;background:var(--ember);display:inline-block;box-shadow:0 4px 0 -1px rgba(234,106,58,.4)}
.bar nav{display:flex;gap:30px;align-items:center}
.bar nav a{font-family:var(--mono);font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);transition:color .2s var(--ease)}
.bar nav a:hover{color:var(--fg)}
.bar nav a.cta{color:var(--ember)}

/* ---- buttons ---- */
.btn{font-family:var(--sans);font-weight:700;font-size:.9rem;letter-spacing:.01em;padding:15px 28px;display:inline-flex;align-items:center;gap:10px;cursor:pointer;border:1px solid transparent;transition:transform .25s var(--ease),background .25s var(--ease),border-color .25s var(--ease),color .25s var(--ease)}
.btn .arr{transition:transform .3s var(--ease)}
.btn:hover .arr{transform:translateX(4px)}
.btn.solid{background:var(--ember);color:var(--ember-ink)}
.btn.solid:hover{background:var(--ember-hi);transform:translateY(-2px)}
.btn.line{border-color:var(--line-2);color:var(--fg)}
.btn.line:hover{border-color:var(--ember);color:var(--ember)}
/* .primary is an alias for .solid — the build's injected Kit button uses it */
.btn.primary{background:var(--ember);color:var(--ember-ink)}
.btn.primary:hover{background:var(--ember-hi);transform:translateY(-2px)}

/* ---- HERO (home) ---- */
.hero{position:relative;padding:120px 0 96px;border-bottom:1px solid var(--line);overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:
   radial-gradient(120% 80% at 82% -20%, rgba(234,106,58,.16), transparent 46%),
   linear-gradient(180deg, rgba(255,255,255,.02), transparent 30%);pointer-events:none}
.hero::after{content:"";position:absolute;left:0;right:0;top:0;height:100%;
  background-image:linear-gradient(90deg, rgba(255,255,255,.028) 1px, transparent 1px);
  background-size:calc((100vw - 0px)/12) 100%;opacity:.5;mask-image:linear-gradient(180deg,#000,transparent 78%);pointer-events:none}
.hero .wrap{position:relative}
.hero-grid{display:grid;grid-template-columns:1.55fr .85fr;gap:40px;align-items:end}
.hero .kicker{display:block;margin-bottom:26px}
.hero h1{font-size:clamp(2.8rem,5.6vw,4.7rem);letter-spacing:-.005em;max-width:19ch}
.hero h1 .soft{color:var(--fg-dim)}
.hero .sub{font-size:clamp(1.1rem,1.5vw,1.32rem);color:var(--fg-dim);max-width:52ch;margin-top:30px}
.hero .cta-row{display:flex;gap:16px;flex-wrap:wrap;margin-top:38px;align-items:center}
.hero-side{border-left:1px solid var(--line);padding-left:32px;padding-bottom:8px}
.hero-side .quote{font-family:var(--display);font-style:italic;font-size:1.4rem;line-height:1.4;color:var(--fg)}
.hero-side .quote span{display:block;font-family:var(--mono);font-style:normal;font-size:.62rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin-top:14px}
.hero-side .fmt{font-family:var(--mono);font-size:.74rem;letter-spacing:.04em;color:var(--fg-dim);line-height:1.6;border-top:1px solid var(--line);padding-top:20px;margin-top:24px}
.hero-side .fmt b{color:var(--ember);font-weight:700}
.edge-underline{position:relative;white-space:nowrap}
.edge-underline::after{content:"";position:absolute;left:0;bottom:.06em;height:3px;width:100%;background:var(--ember);transform:scaleX(0);transform-origin:left;animation:draw 1s var(--ease) .7s forwards}
@keyframes draw{to{transform:scaleX(1)}}

/* ---- section frame ---- */
section{padding:104px 0;border-bottom:1px solid var(--line);position:relative}
.sec-head{display:grid;grid-template-columns:.9fr 1.5fr;gap:40px;align-items:start;margin-bottom:8px}
.sec-head .kicker{margin-bottom:0}
.sec-head h2{font-size:clamp(2.2rem,4.6vw,3.4rem);color:var(--fg)}
.sec-head .lede{color:var(--fg-dim);font-size:1.16rem;max-width:56ch;margin-top:18px}
.js .reveal{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.js .reveal.in{opacity:1;transform:none}

/* two-column body block (kicker gutter + prose) */
.body-grid{display:grid;grid-template-columns:.9fr 1.5fr;gap:40px}
.body-grid p{color:var(--fg-dim);font-size:1.12rem}
.body-grid p+p{margin-top:18px}
.body-grid .sig{font-family:var(--display);font-style:italic;font-size:1.7rem;color:var(--fg);margin-top:10px}

/* ---- premise ---- */
.premise p{font-size:1.28rem;color:var(--fg-dim);max-width:60ch}
.premise p+p{margin-top:22px}
.premise strong{color:var(--fg);font-weight:500}

/* ---- symptom router ---- */
.router{display:grid;grid-template-columns:repeat(3,1fr);gap:2px;background:var(--line);border:1px solid var(--line);margin-top:40px}
.router a{background:var(--bg);padding:24px 26px;color:var(--fg-dim);font-size:1rem;line-height:1.5;transition:background .3s var(--ease)}
.router a:hover{background:var(--panel)}
.router .r-sym{display:block;font-family:var(--mono);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ember);margin-bottom:10px}
.router b{display:block;font-family:var(--sans);font-weight:700;font-size:.84rem;color:var(--fg);margin-top:12px}

/* ---- BOOKS as instrument index ---- */
.index{margin-top:56px;border-top:1px solid var(--line)}
.entry{display:grid;grid-template-columns:64px 200px 1fr auto;gap:38px;align-items:center;padding:38px 0;border-bottom:1px solid var(--line);transition:background .35s var(--ease)}
.entry:hover{background:linear-gradient(90deg,rgba(234,106,58,.05),transparent 60%)}
.entry .no{font-family:var(--display);font-size:2.4rem;color:var(--faint);line-height:1;transition:color .35s var(--ease)}
.entry:hover .no{color:var(--ember)}
.entry .cover{width:100%}
.cover{aspect-ratio:1600/2560;height:auto;border:1px solid var(--line-2);box-shadow:0 26px 54px -22px rgba(0,0,0,.8);background:#0c0b0e}
.entry .meta .ek{font-family:var(--mono);font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:12px}
.entry .meta h3{font-size:2rem;color:var(--fg);line-height:1.02;margin-bottom:10px}
.entry .meta .st{font-family:var(--mono);font-size:.72rem;letter-spacing:.02em;color:var(--muted);line-height:1.5;margin-bottom:14px;max-width:52ch}
.entry .meta .hook{color:var(--fg-dim);font-size:1.04rem;max-width:54ch}
.entry .act{text-align:right;display:flex;flex-direction:column;align-items:flex-end;gap:14px;min-width:180px}
.entry .act .fmt{font-family:var(--mono);font-size:.66rem;letter-spacing:.06em;color:var(--fg-dim);text-align:right;line-height:1.5}
.entry .act .fmt b{color:var(--ember)}
.entry .act .more{font-family:var(--sans);font-weight:700;font-size:.86rem;color:var(--fg);display:inline-flex;gap:8px;align-items:center}
.entry .act .more .arr{color:var(--ember);transition:transform .3s var(--ease)}
.entry:hover .act .more .arr{transform:translateX(4px)}
.entry .act .amz{font-family:var(--mono);font-size:.68rem;letter-spacing:.06em;color:var(--muted)}
.entry .act .amz:hover{color:var(--ember)}

/* ---- author ---- */
.author-grid{display:grid;grid-template-columns:.9fr 1.5fr;gap:40px}
.author-grid p{color:var(--fg-dim);font-size:1.12rem}
.author-grid p+p{margin-top:18px}
.author-grid .sig{font-family:var(--display);font-style:italic;font-size:1.7rem;color:var(--fg);margin-top:10px}

/* ---- dispatch ---- */
.dispatch{background:linear-gradient(180deg,var(--bg-2),var(--bg))}
.dispatch h2{font-size:clamp(2.4rem,5vw,3.8rem);color:var(--fg);max-width:16ch}
.dispatch .lede{color:var(--fg-dim);font-size:1.16rem;max-width:56ch;margin-top:18px}
.signup{display:flex;gap:12px;max-width:640px;margin-top:34px;flex-wrap:wrap}
.signup input{flex:1;min-width:170px;background:#0A0B0E;border:1px solid var(--line-2);color:var(--fg);font-family:var(--mono);font-size:.9rem;padding:16px 16px;transition:border-color .2s}
.signup input:focus{outline:none;border-color:var(--ember)}
.nospam{font-family:var(--mono);font-size:.68rem;letter-spacing:.04em;color:var(--muted);margin-top:16px}
.signup-thanks{max-width:660px;margin-top:24px;background:var(--panel-2);border:1px solid var(--line);padding:26px 28px}
.signup-thanks .eyebrow{color:var(--ember)}
.signup-thanks h3{font-family:var(--display);font-size:1.8rem;margin:8px 0 8px;color:var(--fg)}
.signup-thanks p{color:var(--fg-dim);margin:0}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}

/* ---- footer ---- */
footer{padding:64px 0 48px;color:var(--muted)}
footer .wrap{display:grid;grid-template-columns:1fr auto;gap:30px;align-items:start}
footer .foot-tag{font-family:var(--display);font-style:italic;font-size:1.3rem;color:var(--fg-dim);margin-top:10px}
.fnav{display:flex;gap:26px;flex-wrap:wrap;justify-content:flex-end}
.fnav a{font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);transition:color .2s}
.fnav a:hover{color:var(--ember)}
.copyright{grid-column:1/-1;font-family:var(--mono);font-size:.66rem;letter-spacing:.06em;color:var(--faint);border-top:1px solid var(--line);padding-top:22px;margin-top:12px}

/* ============================================================
   BOOK PAGES
   ============================================================ */

/* book hero — asymmetric text | cover */
.bookhero{position:relative;padding:60px 0 96px;border-bottom:1px solid var(--line);overflow:hidden}
.bookhero::before{content:"";position:absolute;inset:0;background:radial-gradient(90% 70% at 90% -10%, rgba(234,106,58,.15), transparent 44%);pointer-events:none}
.bookhero .wrap{position:relative}
.crumb{font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);display:inline-flex;gap:8px;align-items:center;transition:color .2s}
.crumb:hover{color:var(--ember)}
.bh-grid{display:grid;grid-template-columns:1.5fr .8fr;gap:60px;align-items:center;margin-top:36px}
.bh-txt .kicker{display:block;margin-bottom:22px}
.bh-txt h1{font-size:clamp(2.7rem,6vw,5rem);color:var(--fg);letter-spacing:-.005em}
.bh-txt .st{font-family:var(--mono);font-size:.82rem;letter-spacing:.02em;line-height:1.55;color:var(--fg-dim);margin-top:22px;max-width:50ch}
.bh-txt .pitch{font-size:1.18rem;color:var(--fg-dim);margin-top:24px;max-width:54ch}
.buybar{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px;align-items:center}
.avail{font-family:var(--mono);font-size:.72rem;letter-spacing:.03em;color:var(--muted);margin-top:20px;line-height:1.6}
.avail b{color:var(--ember);font-weight:700}
.bh-cover{position:relative}
.bh-cover .cover{width:100%;box-shadow:0 40px 80px -30px rgba(0,0,0,.85)}

/* callout — is this you */
.callout{border-left:2px solid var(--ember);padding:6px 0 6px 28px;font-family:var(--display);font-size:clamp(1.5rem,3vw,2.1rem);line-height:1.25;color:var(--fg);max-width:26ch}
.section-note{color:var(--fg-dim);font-size:1.12rem;margin-top:22px;max-width:58ch}

/* excerpt — "a page from it" (real verbatim opening) */
.excerpt-sec{background:linear-gradient(180deg,var(--bg-2),var(--bg))}
.excerpt{max-width:64ch;margin-top:14px;position:relative}
.excerpt .frame{border-left:1px solid var(--line-2);padding-left:34px}
.excerpt p{font-family:var(--text);font-size:1.24rem;line-height:1.72;color:var(--fg-dim)}
.excerpt p+p{margin-top:20px}
.excerpt p.lead{color:var(--fg)}
.excerpt .drop::first-letter{font-family:var(--display);font-size:4.4rem;line-height:.72;float:left;color:var(--ember);padding:8px 14px 0 0}
.excerpt .attrib{font-family:var(--mono);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-top:26px}
.excerpt .xcta,.xcta{display:inline-flex;align-items:center;gap:8px;margin-top:24px;font-family:var(--sans);font-weight:700;font-size:.95rem;color:var(--ember)}
.xcta:hover{color:var(--ember-hi)}

/* gains — what you'll walk away able to do */
.gains{list-style:none;margin-top:44px;display:grid;grid-template-columns:1fr 1fr;gap:2px;background:var(--line);border:1px solid var(--line)}
.gains li{background:var(--bg);padding:30px 30px 30px 54px;position:relative;color:var(--fg-dim);font-size:1.08rem}
.gains li::before{content:"";position:absolute;left:30px;top:38px;width:14px;height:2px;background:var(--ember)}

/* steps — how it works / inside the book */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:2px;margin-top:48px;background:var(--line);border:1px solid var(--line)}
.steps.four{grid-template-columns:repeat(4,1fr)}
.step{background:var(--bg);padding:36px 32px}
.step .n{font-family:var(--display);font-size:3.4rem;color:var(--ember);line-height:.8}
.step .pt{font-family:var(--mono);font-size:.64rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin-top:16px}
.step h4{font-size:1.5rem;color:var(--fg);margin:8px 0 12px}
.step p{color:var(--fg-dim);font-size:1rem}

/* CTA band */
.band{background:var(--panel);border:1px solid var(--line-2);padding:44px 48px;display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;position:relative;overflow:hidden}
.band::before{content:"";position:absolute;top:0;left:0;bottom:0;width:3px;background:var(--ember)}
.band .pl h3{font-size:2rem;color:var(--fg)}
.band .pl p{color:var(--fg-dim);margin-top:8px;max-width:46ch}

/* related — also in the series */
.related{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:48px}
.rel{display:grid;grid-template-columns:78px 1fr;gap:22px;align-items:center;border:1px solid var(--line);padding:22px;transition:border-color .3s var(--ease),background .3s var(--ease)}
.rel:hover{border-color:var(--line-2);background:linear-gradient(90deg,rgba(234,106,58,.05),transparent)}
.rel img{width:78px;height:auto;border:1px solid var(--line-2);box-shadow:0 14px 30px -14px rgba(0,0,0,.8)}
.rel .rt{font-family:var(--mono);font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:8px}
.rel h4{font-size:1.4rem;color:var(--fg);line-height:1.05;margin-bottom:10px}
.rel .go{font-family:var(--mono);font-size:.7rem;letter-spacing:.04em;color:var(--ember)}

/* FAQ */
.faq{margin-top:40px;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line);padding:6px 0}
.faq summary{list-style:none;cursor:pointer;padding:24px 44px 24px 0;font-family:var(--sans);font-weight:500;font-size:1.16rem;color:var(--fg);position:relative;transition:color .2s}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);font-family:var(--mono);font-size:1.3rem;color:var(--ember);transition:transform .3s var(--ease)}
.faq details[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq summary:hover{color:var(--ember)}
.faq details p{color:var(--fg-dim);font-size:1.06rem;padding:0 44px 26px 0;max-width:70ch}

/* ---- responsive ---- */
@media(max-width:980px){
  section{padding:72px 0}
  .hero{padding:84px 0 64px}
  .bookhero{padding:40px 0 64px}
  .hero-grid{grid-template-columns:1fr}
  .hero-side{border-left:0;border-top:1px solid var(--line);padding-left:0;padding-top:24px;margin-top:8px}
  .hero-side .quote{font-size:1.2rem}
  .hero-side .fmt{border-top:0;padding-top:0;margin-top:18px}
  .sec-head,.author-grid,.body-grid{grid-template-columns:1fr;gap:16px}
  .bh-grid{grid-template-columns:1fr;gap:36px}
  .bh-cover{max-width:280px}
  .entry{grid-template-columns:40px 96px minmax(0,1fr);gap:18px;align-items:start}
  .entry .meta h3{font-size:1.6rem}
  .entry .act{grid-column:1/-1;flex-direction:row;flex-wrap:wrap;justify-content:space-between;align-items:center;text-align:left;border-top:1px solid var(--line);padding-top:14px;margin-top:4px;width:100%;min-width:0;gap:12px}
  .entry .act .fmt{text-align:left}
  .gains,.steps,.steps.four,.related,.router{grid-template-columns:1fr}
  .bar nav a:not(.cta){display:none}
}
@media(max-width:400px){
  /* the 01/02/03 ordinal is dropped here only — the same numbering is still
     on screen directly above in .router ("Field Manual 01/02/03"), so nothing
     is actually lost at this width. */
  .entry{grid-template-columns:76px minmax(0,1fr);gap:16px}
  .entry .no{display:none}
  .entry .meta h3{font-size:1.3rem}
  .entry .meta .st{font-size:.68rem}
}
@media(max-width:860px){
  /* footer .wrap is `1fr auto`; .fnav's auto track sizes to its max-content and
     starves the 1fr brand column, which collapsed the wordmark and the tagline
     to three lines each at 390px. Below 860 the two stack instead. */
  footer .wrap{grid-template-columns:1fr;gap:26px}
  .fnav{justify-content:flex-start;gap:14px 22px}
  footer .foot-tag{font-size:1.2rem}
}
@media(max-width:560px){
  .wrap{padding:0 22px}
  body{font-size:18px}
  section{padding:60px 0}
}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition-duration:.001s!important}.js .reveal{opacity:1;transform:none}.edge-underline::after{animation:none;transform:scaleX(1)}}

/* ---- accessibility: skip link + WCAG 2.2 24px minimum target ---- */
.skip{position:absolute;left:-9999px;top:0;z-index:200;background:var(--ember);color:var(--ember-ink);font-family:var(--sans);font-weight:700;font-size:.9rem;padding:12px 18px;text-decoration:none}
.skip:focus{left:10px;top:10px}
.bar nav a,.fnav a,.entry .act .more,.entry .act .amz,.crumb,.rel .go,.xcta{min-height:24px;display:inline-flex;align-items:center}
.fnav a,.bar nav a{gap:0}

/* 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}