:root {
  --navy-950: #06192b;
  --navy-900: #0a2138;
  --navy-800: #12314e;
  --navy-700: #1d4567;
  --teal-600: #258692;
  --teal-500: #35a7ad;
  --teal-300: #8ed2d0;
  --cream-50: #fbf8ef;
  --cream-100: #f4efe2;
  --cream-200: #e7deca;
  --slate-900: #172333;
  --slate-700: #42566d;
  --slate-500: #708298;
  --white: #ffffff;
  --orange: #de4c23;
  --success: #1e7a55;
  --warning: #a36d00;
  --danger: #a74343;
  --max: 1180px;
  --shadow: 0 18px 48px rgba(5, 23, 39, 0.18);
  --radius: 18px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--slate-900);
  background: var(--cream-50);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; height: auto; }
a { color: var(--teal-600); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--navy-800); }
button, input { font: inherit; }

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 9999;
  background: var(--cream-50); color: var(--navy-950); padding: .75rem 1rem;
}
.skip-link:focus { left: .75rem; top: .75rem; }

.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(6, 25, 43, 0.96);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(142, 210, 208, 0.18);
}
.nav-wrap {
  max-width: var(--max); margin: 0 auto; padding: .8rem 1.25rem;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
}
.brand {
  display: inline-flex; align-items: center; gap: .7rem;
  text-decoration: none; color: var(--white); min-width: 0;
}
.brand-mark {
  width: 42px; height: 42px; object-fit: cover; border-radius: 8px;
  background: var(--cream-50); border: 1px solid rgba(255,255,255,.24);
}
.brand-text { display: grid; line-height: 1.05; }
.brand-text strong { letter-spacing: .04em; font-size: .92rem; }
.brand-text span { color: var(--teal-300); font-size: .72rem; margin-top: .2rem; }
.nav-links { display: flex; align-items: center; gap: .2rem; }
.nav-links a {
  color: rgba(255,255,255,.84); text-decoration: none; padding: .55rem .72rem;
  border-radius: 8px; font-size: .93rem;
}
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--white); background: rgba(255,255,255,.08); }
.nav-links .nav-cta { background: var(--teal-500); color: var(--navy-950); font-weight: 800; margin-left: .35rem; }
.nav-links .nav-cta:hover { background: var(--teal-300); color: var(--navy-950); }
.nav-toggle {
  display: none; color: var(--white); background: transparent; border: 1px solid rgba(255,255,255,.24);
  border-radius: 8px; padding: .45rem .65rem; cursor: pointer;
}

.container { max-width: var(--max); margin: 0 auto; padding-left: 1.25rem; padding-right: 1.25rem; }
.narrow { max-width: 800px; margin-left: auto; margin-right: auto; }
.section { padding: 5rem 0; }
.section-sm { padding: 3.25rem 0; }
.section-dark { background: var(--navy-950); color: var(--cream-50); }
.section-blue { background: var(--navy-900); color: var(--cream-50); }
.section-cream { background: var(--cream-100); }

.hero {
  position: relative; overflow: hidden;
  background:
    linear-gradient(rgba(53,167,173,.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(53,167,173,.07) 1px, transparent 1px),
    radial-gradient(circle at 82% 16%, rgba(53,167,173,.17), transparent 32%),
    var(--navy-950);
  background-size: 38px 38px, 38px 38px, auto, auto;
  color: var(--cream-50);
  border-bottom: 6px solid var(--teal-500);
}
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(110deg, transparent 58%, rgba(255,255,255,.025) 58% 59%, transparent 59%);
}
.hero-grid { min-height: 650px; display: grid; grid-template-columns: 1.08fr .92fr; gap: 4rem; align-items: center; padding-top: 5rem; padding-bottom: 5rem; position: relative; z-index: 1; }
.kicker {
  display: inline-flex; gap: .5rem; align-items: center; color: var(--teal-300);
  font-size: .82rem; font-weight: 900; letter-spacing: .2em; text-transform: uppercase;
}
.kicker::after { content: ""; width: 70px; height: 2px; background: var(--teal-500); display: inline-block; }
.display {
  margin: 1.1rem 0 1.25rem;
  color: var(--cream-50);
  font-family: "Arial Narrow", "Aptos Narrow", Impact, sans-serif;
  font-size: clamp(3.1rem, 7.5vw, 6.3rem); line-height: .91; letter-spacing: -.035em; text-transform: uppercase;
  max-width: 10ch;
}
.hero-copy { color: #d8e2ea; font-size: 1.14rem; max-width: 690px; }
.hero-copy strong { color: var(--white); }
.cta-row { display: flex; flex-wrap: wrap; gap: .9rem; margin-top: 2rem; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .45rem;
  min-height: 48px; padding: .8rem 1.15rem; border-radius: 10px; text-decoration: none; border: 1px solid transparent;
  font-weight: 850; line-height: 1.1; transition: .18s ease;
}
.btn-primary { background: var(--teal-500); color: var(--navy-950); }
.btn-primary:hover { background: var(--teal-300); color: var(--navy-950); transform: translateY(-1px); }
.btn-secondary { border-color: rgba(255,255,255,.34); color: var(--white); background: rgba(255,255,255,.03); }
.btn-secondary:hover { border-color: var(--teal-300); background: rgba(53,167,173,.08); color: var(--white); }
.btn-dark { background: var(--navy-950); color: var(--white); }
.btn-dark:hover { background: var(--navy-800); color: var(--white); }
.btn-outline { border-color: var(--navy-800); color: var(--navy-900); background: transparent; }
.btn-outline:hover { background: var(--navy-900); color: var(--white); }

.trust-strip { display: flex; flex-wrap: wrap; gap: 1.2rem; margin-top: 2rem; color: #b8c8d4; font-size: .9rem; }
.trust-strip span { display: inline-flex; align-items: center; gap: .45rem; }
.trust-strip span::before { content: "✓"; color: var(--teal-300); font-weight: 900; }

.book-shell { position: relative; max-width: 410px; margin: 0 auto; perspective: 900px; }
.book-cover {
  position: relative; padding: 2rem 1.7rem 1.7rem; min-height: 550px;
  background:
    linear-gradient(rgba(53,167,173,.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(53,167,173,.07) 1px, transparent 1px),
    var(--navy-900);
  background-size: 26px 26px;
  color: var(--cream-50); border: 1px solid rgba(142,210,208,.38);
  border-radius: 4px 10px 10px 4px; box-shadow: 18px 26px 55px rgba(0,0,0,.36);
  transform: rotateY(-6deg) rotateZ(.5deg);
  overflow: hidden;
}
.book-cover::before { content: ""; position: absolute; top: 0; bottom: 0; left: 9px; width: 1px; background: rgba(255,255,255,.14); }
.book-cover::after { content: ""; position: absolute; right: -8px; top: 14px; bottom: 14px; width: 12px; background: linear-gradient(90deg, #c9c3b7, #fffdf4); border-radius: 0 6px 6px 0; }
.book-edition { color: var(--teal-300); letter-spacing: .18em; font-weight: 900; font-size: .74rem; text-transform: uppercase; }
.book-title { font-family: "Arial Narrow", "Aptos Narrow", Impact, sans-serif; font-size: 2.55rem; line-height: .93; text-transform: uppercase; letter-spacing: -.02em; margin: 1.2rem 0; }
.book-band { margin: 1.3rem -1.7rem 0; padding: 1.3rem 1.7rem; background: var(--cream-50); color: var(--navy-900); border-top: 4px solid var(--teal-500); min-height: 160px; }
.book-subtitle { font-size: .86rem; line-height: 1.35; max-width: 28ch; font-weight: 700; }
.book-badge { position: absolute; right: 1.3rem; bottom: 89px; width: 112px; height: 112px; border-radius: 50%; display: grid; place-items: center; text-align: center; background: var(--navy-900); color: var(--cream-50); border: 5px solid var(--teal-500); font-weight: 900; font-size: .9rem; line-height: 1.05; padding: .75rem; }
.book-footer { position: absolute; left: 0; right: 0; bottom: 0; height: 87px; display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 1rem 1.7rem; background: var(--navy-950); }
.book-author { font-size: 1.25rem; font-weight: 900; }
.book-brand { display: flex; align-items: center; gap: .45rem; font-size: .8rem; color: #e9e1d2; }
.book-brand img { width: 42px; height: 42px; object-fit: cover; border-radius: 6px; background: var(--cream-50); }

.eyebrow { color: var(--teal-600); text-transform: uppercase; letter-spacing: .16em; font-weight: 900; font-size: .78rem; }
h1, h2, h3 { color: var(--navy-950); line-height: 1.1; text-wrap: balance; }
.section-dark h2, .section-dark h3, .section-blue h2, .section-blue h3 { color: var(--cream-50); }
h2 { font-size: clamp(2rem, 4vw, 3.3rem); margin: .5rem 0 1.2rem; letter-spacing: -.03em; }
h3 { font-size: 1.3rem; margin: 0 0 .55rem; }
.lede { font-size: 1.15rem; color: var(--slate-700); max-width: 780px; }
.section-dark .lede, .section-blue .lede { color: #c5d1dc; }

.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 1.3rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 1.2rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 1rem; }
.card {
  background: var(--white); border: 1px solid var(--cream-200); border-radius: var(--radius);
  padding: 1.45rem; box-shadow: 0 7px 22px rgba(20, 38, 55, .06);
}
.card-dark { background: rgba(255,255,255,.045); border-color: rgba(142,210,208,.18); box-shadow: none; }
.card-dark p { color: #c9d5de; }
.card-number { font-family: "Arial Narrow", Impact, sans-serif; font-size: 2.3rem; color: var(--teal-500); line-height: 1; margin-bottom: .65rem; }
.icon-chip { width: 48px; height: 48px; display: grid; place-items: center; background: var(--cream-100); color: var(--teal-600); border-radius: 12px; font-weight: 900; margin-bottom: 1rem; }

.quote-panel { border-left: 5px solid var(--teal-500); padding: .2rem 0 .2rem 1.25rem; margin: 2rem 0; color: var(--navy-900); font-size: 1.35rem; font-weight: 780; }
.section-dark .quote-panel { color: var(--cream-50); }

.callout { border-radius: var(--radius); padding: 1.3rem 1.4rem; background: var(--cream-100); border-left: 5px solid var(--teal-600); margin: 2rem 0; }
.callout.warning { border-left-color: var(--warning); background: #fff6df; }
.callout strong { color: var(--navy-900); }

.article-hero { padding: 4.2rem 0 3.2rem; background: var(--navy-950); color: var(--cream-50); border-bottom: 5px solid var(--teal-500); }
.article-hero h1 { color: var(--cream-50); font-size: clamp(2.5rem, 6vw, 4.8rem); max-width: 850px; margin: .75rem 0 1rem; letter-spacing: -.04em; }
.article-meta { color: #aebfcd; display: flex; flex-wrap: wrap; gap: .8rem 1.2rem; font-size: .9rem; }
.article-layout { display: grid; grid-template-columns: minmax(0, 760px) 270px; gap: 3.2rem; align-items: start; }
.prose { font-size: 1.04rem; }
.prose h2 { margin-top: 2.8rem; font-size: 2rem; }
.prose h3 { margin-top: 2rem; }
.prose p { margin: 1rem 0; }
.prose li { margin: .42rem 0; }
.prose .lead { font-size: 1.22rem; color: var(--slate-700); }
.toc-card { position: sticky; top: 88px; background: var(--white); border: 1px solid var(--cream-200); border-radius: 14px; padding: 1.1rem; font-size: .92rem; }
.toc-card strong { display: block; color: var(--navy-900); margin-bottom: .6rem; }
.toc-card a { display: block; color: var(--slate-700); text-decoration: none; padding: .32rem 0; }
.toc-card a:hover { color: var(--teal-600); }

.resource-list { display: grid; gap: .75rem; margin-top: 1.4rem; }
.resource-row { display: grid; grid-template-columns: 42px 1fr auto; gap: .8rem; align-items: center; padding: .9rem 1rem; background: var(--white); border: 1px solid var(--cream-200); border-radius: 12px; }
.resource-row .num { font-weight: 900; color: var(--teal-600); }
.resource-row small { color: var(--slate-500); }

.price-card { background: var(--navy-950); color: var(--cream-50); border-radius: 22px; padding: 1.8rem; box-shadow: var(--shadow); }
.price-card h3 { color: var(--cream-50); }
.price { font-family: "Arial Narrow", Impact, sans-serif; font-size: 4rem; line-height: 1; margin: .4rem 0; }
.price-note { color: #bfcbd4; font-size: .92rem; }

.form-card { background: var(--white); border: 1px solid var(--cream-200); border-radius: var(--radius); padding: 1.5rem; box-shadow: var(--shadow); }
.form-row { display: grid; gap: .45rem; margin-bottom: .9rem; }
label { font-size: .9rem; font-weight: 800; color: var(--navy-900); }
input[type="email"], input[type="text"] { width: 100%; min-height: 48px; border-radius: 9px; border: 1px solid #bac5cf; padding: .7rem .8rem; background: #fff; color: var(--slate-900); }
input:focus { outline: 3px solid rgba(53,167,173,.25); border-color: var(--teal-600); }
.form-help { font-size: .8rem; color: var(--slate-500); }
.form-status { min-height: 1.3em; margin-top: .7rem; font-size: .88rem; }

.faq details { border-top: 1px solid var(--cream-200); padding: 1rem 0; }
.faq details:last-child { border-bottom: 1px solid var(--cream-200); }
.faq summary { cursor: pointer; font-weight: 850; color: var(--navy-900); }
.faq p { color: var(--slate-700); }

.status-panel { border-radius: 20px; padding: 1.6rem; background: var(--white); border: 1px solid var(--cream-200); box-shadow: 0 8px 22px rgba(20,38,55,.06); }
.status-head { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; justify-content: space-between; }
.status-badge { display: inline-flex; border-radius: 999px; padding: .45rem .7rem; font-size: .78rem; font-weight: 900; letter-spacing: .08em; background: #e8f6ef; color: var(--success); }
.status-badge.preview { background: #fff2d7; color: var(--warning); }

.site-footer { background: #041522; color: #b9c6d0; padding: 3.5rem 0 2rem; border-top: 5px solid var(--teal-500); }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 2rem; }
.footer-brand { display: flex; align-items: center; gap: .8rem; color: var(--cream-50); font-weight: 900; }
.footer-brand img { width: 58px; height: 58px; object-fit: cover; border-radius: 10px; background: var(--cream-50); }
.footer-links a { display: block; color: #b9c6d0; text-decoration: none; margin: .35rem 0; }
.footer-links a:hover { color: var(--teal-300); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); margin-top: 2rem; padding-top: 1.2rem; font-size: .82rem; color: #8395a5; }

.mobile-cta { display: none; }

@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; min-height: auto; gap: 2.5rem; }
  .display { max-width: 13ch; }
  .book-shell { max-width: 360px; }
  .grid-4 { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .article-layout { grid-template-columns: 1fr; }
  .toc-card { position: static; }
}

@media (max-width: 760px) {
  .nav-toggle { display: inline-flex; }
  .nav-links { position: absolute; left: 0; right: 0; top: 100%; display: none; flex-direction: column; align-items: stretch; background: var(--navy-950); border-top: 1px solid rgba(255,255,255,.08); padding: .7rem 1rem 1rem; }
  .nav-links.open { display: flex; }
  .nav-links .nav-cta { margin-left: 0; }
  .hero-grid { padding-top: 3.5rem; padding-bottom: 3.5rem; }
  .display { font-size: clamp(3rem, 15vw, 5rem); }
  .section { padding: 3.5rem 0; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .resource-row { grid-template-columns: 34px 1fr; }
  .resource-row .resource-type { grid-column: 2; }
  .mobile-cta { display: block; position: fixed; left: 1rem; right: 1rem; bottom: 1rem; z-index: 900; }
  .mobile-cta .btn { width: 100%; box-shadow: 0 10px 26px rgba(0,0,0,.28); }
  body { padding-bottom: 76px; }
}

@media print {
  .site-header, .site-footer, .mobile-cta, .cta-row, .toc-card { display: none !important; }
  body { background: white; color: black; font-size: 11pt; padding: 0; }
  .article-hero { background: white; color: black; border-bottom: 2px solid #333; padding: 1rem 0; }
  .article-hero h1 { color: black; }
  .section { padding: 1rem 0; }
  a { color: black; text-decoration: none; }
}

/* ---------- PREPUBLICATION SAFETY BANNER ---------- */
.prelaunch-banner {
  position: relative;
  z-index: 1100;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .8rem;
  padding: .55rem 1.25rem;
  background: var(--cream-100);
  color: var(--navy-950);
  border-bottom: 1px solid var(--cream-200);
  font-size: .86rem;
  line-height: 1.35;
  text-align: center;
}
.prelaunch-banner strong {
  flex: 0 0 auto;
  color: var(--teal-600);
  text-transform: uppercase;
  letter-spacing: .1em;
  font-size: .75rem;
}
.prelaunch-banner span { color: var(--slate-700); }

@media (max-width: 720px) {
  .prelaunch-banner { display: block; padding: .6rem 1rem; }
  .prelaunch-banner strong { display: block; margin-bottom: .15rem; }
}

@media print {
  .prelaunch-banner { display: none !important; }
}