/* BoilerShift Publishing — static site (Design v1 build)
   Brand: navy #031E43 / glacier #047DDF / amber #F5A81C (High-Pressure)
          teal #159A8C (Low-Pressure) / brick #B3402A (Maryland)
   Type: Noto Sans Condensed (system / locally installed; condensed sans fallback).
   No webfonts, no scripts, no external dependencies — renders fully offline. */
:root{
  --navy:#031E43; --navy-dark:#021126; --glacier:#047DDF;
  --amber:#F5A81C; --teal:#159A8C; --brick:#B3402A;
  --offwhite:#E9EEF5; --tint:#C8E2F8; --foot:#A0CEF3; --faint:#7E97B5;
  --light:#F2F5F9; --pale:#E7F2FD; --line:#D5DEE9;
  --ink:#16283F; --slate:#44586E; --white:#FFFFFF;
  --font:"Noto Sans Condensed","Arial Narrow","Helvetica Neue Condensed",Arial,sans-serif;
}
*{box-sizing:border-box} html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--white);font-size:19px;line-height:1.45}
img{max-width:100%;height:auto;display:block}
a{color:var(--glacier);text-decoration:none} a:hover{text-decoration:underline}
.wrap{max-width:1248px;margin:0 auto;padding:0 24px}
h1,h2,h3{color:var(--navy);letter-spacing:.02em;line-height:1.05;margin:0}
.eyebrow{letter-spacing:.14em;font-weight:700;text-transform:uppercase}
/* Header */
.site-header{background:var(--navy);border-bottom:4px solid var(--glacier)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:104px}
.wordmark{height:52px;width:auto}
nav.main{display:flex;gap:34px;flex-wrap:wrap}
nav.main a{color:var(--offwhite);font-weight:600;letter-spacing:.14em;font-size:17px;text-transform:uppercase}
nav.main a:hover{color:var(--tint);text-decoration:none}
nav.main a[aria-current="page"]{color:var(--amber)}
/* Mobile MENU toggle — CSS-only (no scripts, per site rules). The checkbox is
   visually hidden; its MENU label shows only at <=900px and opens the nav as a
   full-width row under the wordmark plate, as in the design mobile render. */
.nav-toggle{position:absolute;width:1px;height:1px;opacity:0;overflow:hidden}
.nav-toggle-label{display:none;color:var(--offwhite);font-weight:700;letter-spacing:.14em;font-size:16px;text-transform:uppercase;cursor:pointer;padding:12px 2px 12px 16px;margin-left:auto}
.nav-toggle:focus-visible ~ .nav-toggle-label{outline:2px solid var(--amber);outline-offset:2px}
/* Footer */
.site-footer{background:var(--navy-dark);color:var(--faint);padding:26px 0 30px;margin-top:0}
.site-footer .row{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.site-footer .wordmark{height:32px}
.site-footer .pub{color:var(--foot);letter-spacing:.2em;font-weight:600;font-size:14px;text-transform:uppercase}
.site-footer .mail{color:var(--glacier);letter-spacing:.08em;font-weight:600;text-transform:uppercase}
.site-footer .fine{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-top:18px;font-size:15px}
/* Hero */
.hero{background:var(--navy);color:var(--offwhite);padding:56px 0 64px}
.hero .grid{display:grid;grid-template-columns:minmax(0,1fr) 372px;gap:28px 64px;align-items:start;grid-template-areas:"intro cover" "body cover"}
.hero .hero-intro{grid-area:intro}
.hero .hero-body{grid-area:body}
.hero .cover-col{grid-area:cover}
.hero .kicker{color:var(--amber);font-size:20px}
.hero .kicker::before{content:"";display:inline-block;width:32px;height:8px;background:var(--amber);margin-right:14px;vertical-align:middle}
.hero h1{color:var(--white);font-size:66px;font-weight:900;text-transform:uppercase;margin:18px 0 8px}
.hero .series{color:var(--glacier);font-size:25px;font-weight:600}
.hero p.lede{font-size:21px;max-width:660px}
.cover-shadow{box-shadow:14px 18px 28px rgba(0,0,0,.35)}
.cover-cap{text-align:center;color:var(--tint);letter-spacing:.08em;font-weight:600;font-size:16px;margin-top:16px;text-transform:uppercase}
.btn{display:inline-block;padding:14px 26px;border-radius:5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;font-size:19px;text-align:center}
.btn:hover{text-decoration:none;filter:brightness(1.07)}
.btn-primary{background:var(--glacier);color:var(--white)}
.btn-outline{border:2px solid var(--glacier);color:var(--glacier)}
.btn-amber{background:var(--amber);color:var(--navy)}
.btn-outline-navy{border:2px solid var(--navy);color:var(--navy)}
.btn-row{display:flex;gap:16px;flex-wrap:wrap;margin-top:26px}
/* Placeholder buy buttons — NOT links, no checkout, until live listing URLs exist */
.buy-btn{display:inline-block;padding:12px 22px;border-radius:5px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;font-size:18px;text-align:center;cursor:not-allowed;opacity:.92}
.buy-btn small{display:block;font-size:13px;letter-spacing:.1em;font-weight:600;margin-top:2px}
.buy-amber{background:var(--amber);color:var(--navy)}
.buy-glacier{background:var(--glacier);color:var(--white)}
.buy-outline{border:2px solid var(--navy);color:var(--navy);background:var(--white)}
.placeholder-note{color:var(--slate);font-size:16px;margin-top:12px}
/* Sections */
section{padding:44px 0}
.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:24px;flex-wrap:wrap}
.section-head h2,.section-title{font-size:34px;font-weight:900;text-transform:uppercase}
.section-sub{color:var(--slate);font-size:20px;margin-top:6px}
.accuracy-strip{background:var(--white)}
.accuracy-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;margin-top:26px}
.accuracy-cols h3{font-size:21px;padding-left:34px;position:relative}
.accuracy-cols h3::before,.sq::before{content:"";position:absolute;left:0;top:.32em;width:11px;height:11px;background:var(--glacier)}
.accuracy-cols p{color:var(--slate);font-size:17px;padding-left:34px;margin:6px 0 0}
.shelf{background:var(--light)}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin-top:28px}
.card{background:var(--white);border:1px solid var(--line);border-radius:8px;overflow:hidden;display:flex;flex-direction:column}
.card .art{background:var(--pale);padding:16px 24px 0;text-align:center}
.card .art img{width:226px;margin:0 auto;box-shadow:8px 10px 18px rgba(0,0,0,.25)}
.card .body{padding:18px 24px 24px;display:flex;flex-direction:column;gap:8px;flex:1}
.card h3{font-size:24px}
.card .meta{color:var(--slate);font-size:17px}
.card .card-link{margin-top:auto;font-weight:700;letter-spacing:.08em;text-transform:uppercase}
.chip{display:inline-block;align-self:flex-start;padding:4px 14px;border-radius:4px;font-weight:700;letter-spacing:.1em;font-size:14px;text-transform:uppercase}
.chip-amber{background:var(--amber);color:var(--navy)}
.chip-teal{background:var(--teal);color:var(--white)}
.chip-brick{background:var(--brick);color:var(--white)}
.chip-glacier{background:var(--glacier);color:var(--white)}
.chip-outline{border:1px solid var(--slate);color:var(--slate);background:transparent}
.mission{background:var(--navy);text-align:center;padding:54px 24px}
.mission h2{color:var(--white);font-size:31px;font-weight:900;text-transform:uppercase;max-width:900px;margin:0 auto 16px}
.shelf-note{text-align:center;color:var(--slate);letter-spacing:.08em;font-weight:600;text-transform:uppercase;font-size:16px;margin-top:26px}
/* Interior pages */
.page-hero{background:var(--navy);padding:48px 0 52px}
.page-hero h1{color:var(--white);font-size:52px;font-weight:900;text-transform:uppercase}
.page-hero p{color:var(--offwhite);font-size:21px;max-width:820px}
.page-hero .kicker{color:var(--amber);font-size:18px}
.prose{max-width:880px}
.prose h2{font-size:28px;font-weight:900;text-transform:uppercase;margin:36px 0 10px}
.prose p{font-size:20px}
.prose ul{font-size:20px;padding-left:0;list-style:none}
.prose li{position:relative;padding-left:24px;margin:8px 0}
.prose li::before{content:"";position:absolute;left:0;top:.45em;width:9px;height:9px;background:var(--glacier)}
.callout{background:var(--light);border-left:6px solid var(--amber);padding:18px 24px;margin:26px 0}
.callout h3{margin-bottom:6px}
.callout p{margin:0}
.verified{background:var(--pale);border-left:6px solid var(--glacier);padding:16px 20px;margin:20px 0}
.verified strong{color:var(--navy);letter-spacing:.04em;text-transform:uppercase}
table.corrections{width:100%;border-collapse:collapse;font-size:17px;margin:20px 0}
table.corrections th{background:var(--navy);color:var(--white);text-align:left;padding:10px 12px;letter-spacing:.04em}
table.corrections td{border:1px solid var(--line);padding:10px 12px}
.empty-state{background:var(--light);padding:20px 24px;border:1px solid var(--line)}
/* Book page */
.breadcrumb{background:var(--light);padding:16px 0;font-size:15px;letter-spacing:.14em;text-transform:uppercase;font-weight:600}
.breadcrumb .sep{color:var(--slate);margin:0 12px}
.breadcrumb .here{color:var(--navy)}
.book-grid{display:grid;grid-template-columns:440px minmax(0,1fr);gap:76px;padding:44px 0 48px;align-items:start}
.book-grid .col-left{display:flex;flex-direction:column;gap:30px}
/* grid-area names are used only at <=900px, where the column wrappers become
   display:contents and these blocks are placed directly by the mobile grid. */
.book-cover{grid-area:cover}
.book-facts{grid-area:facts}
.book-head{grid-area:head}
.book-main{grid-area:main}
.book-head h1{font-size:48px;font-weight:900;margin:14px 0 6px}
.facts{background:var(--light);border-top:3px solid var(--glacier);padding:18px 24px;margin-top:0}
.facts dl{margin:0}
.facts .row{display:flex;gap:18px;padding:6px 0}
.facts dt{color:var(--slate);letter-spacing:.18em;font-weight:600;font-size:14px;text-transform:uppercase;width:92px;flex:none;padding-top:3px}
.facts dd{margin:0;font-weight:600;color:var(--navy);font-size:19px}
.book-main h1{font-size:48px;font-weight:900;margin:14px 0 6px}
.mini-cards{display:grid;grid-template-columns:1fr 1fr;gap:32px;margin-top:24px}
.mini-card{background:var(--white);border:1px solid var(--line);border-radius:6px;padding:14px 18px;display:flex;gap:18px;align-items:center}
.mini-card img{width:82px;flex:none}
.mini-card .bar{width:3px;align-self:stretch}
.mini-card h3{font-size:21px}
.mini-card .status{font-weight:700;letter-spacing:.14em;font-size:14px;text-transform:uppercase}
/* Holding page */
body.holding{background:var(--navy);border-top:5px solid var(--glacier);min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;color:var(--white);padding:48px 24px}
body.holding .wordmark{height:96px;width:auto;max-width:88vw}
body.holding .rule{width:72px;height:4px;background:var(--glacier);margin:34px auto}
body.holding ul{list-style:none;padding:0;margin:0;text-align:left;font-size:29px;font-weight:600}
body.holding li{margin:16px 0;padding-left:36px;position:relative}
body.holding li::before{content:"";position:absolute;left:0;top:.42em;width:13px;height:13px}
body.holding li.amber::before{background:var(--amber)}
body.holding li.glacier::before{background:var(--glacier)}
body.holding .mail{margin-top:34px;letter-spacing:.16em;font-weight:600;font-size:21px;text-transform:uppercase}
body.holding footer{margin-top:80px;color:var(--foot);letter-spacing:.24em;font-size:14px;text-transform:uppercase}
body.holding footer .copy{color:var(--faint);letter-spacing:.08em;margin-top:8px;text-transform:uppercase}
/* Responsive — mirrors homepage-mobile.png stacking */
@media (max-width:900px){
  .site-header .wrap{min-height:74px;flex-wrap:wrap;row-gap:4px;padding-top:8px;padding-bottom:8px}
  .wordmark{height:34px}
  /* F1: MENU treatment — nav hidden behind the MENU label until toggled,
     then a full-width, full-tap-target column under the wordmark plate. */
  .nav-toggle-label{display:block}
  nav.main{display:none;order:3;flex-basis:100%;width:100%;flex-direction:column;gap:0;flex-wrap:nowrap;padding-bottom:8px}
  nav.main a{font-size:16px;letter-spacing:.12em;display:flex;align-items:center;min-height:44px;padding:10px 2px;border-top:1px solid rgba(200,226,248,.22)}
  .nav-toggle:checked ~ nav.main{display:flex}
  /* F2: hero order — intro (kicker/title/series), cover, then lede + CTAs. */
  .hero .grid{grid-template-columns:1fr;gap:28px;grid-template-areas:"intro" "cover" "body"}
  .hero h1{font-size:38px}
  .hero .cover-col{max-width:248px;margin:0 auto;width:100%}
  .accuracy-cols,.cards,.mini-cards{grid-template-columns:1fr}
  /* F3: book order — title block, cover, facts, then the rest. */
  .book-grid{grid-template-columns:1fr;gap:26px;grid-template-areas:"head" "cover" "facts" "main";padding-left:24px;padding-right:24px}
  .book-grid .col-left,.book-grid .col-right{display:contents}
  .book-grid .cover-col{max-width:320px}
  .book-head h1{font-size:38px}
  /* Minor: facts rows stack label over value on mobile so values never
     break mid-value with orphan words. */
  .facts .row{flex-direction:column;gap:1px;padding:8px 0}
  .facts dt{width:auto;padding-top:0}
  /* Minor: placeholder buy buttons go full-width like .btn CTAs. */
  .buy-btn{display:block;width:100%}
  .page-hero h1{font-size:36px}
  body.holding ul{font-size:21px}
  body.holding .wordmark{height:56px}
  .btn{width:100%}
}