:root {
  --navy-950: #061b2d;
  --navy-900: #0a2942;
  --navy-850: #0d3553;
  --navy-800: #123e60;
  --blue: #72b7ff;
  --blue-soft: #b5d9ff;
  --gold: #eec45e;
  --gold-strong: #ffd66d;
  --white: #f6f8fb;
  --muted: #a7bac9;
  --line: rgba(238, 196, 94, .56);
  --container: 1160px;
  --serif: Georgia, 'Times New Roman', serif;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--navy-950); color: var(--white); font-family: var(--sans); font-size: 16px; line-height: 1.6; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.container { width: min(calc(100% - 56px), var(--container)); margin: 0 auto; }
.section-shell { position: relative; border-bottom: 1px solid rgba(114, 183, 255, .12); scroll-margin-top: 96px; }
.content-section { padding: 86px 0; }

.site-header { position: sticky; top: 0; z-index: 20; background: rgba(3, 18, 31, .9); backdrop-filter: blur(18px); border-bottom: 1px solid rgba(238, 196, 94, .24); }
.nav-wrap { display: flex; align-items: center; justify-content: space-between; min-height: 78px; }
.wordmark { position: relative; display: inline-flex; align-items: center; gap: 6px; padding-bottom: 11px; font-family: var(--serif); font-size: 15px; letter-spacing: .04em; color: var(--blue-soft); }
.wordmark span { color: var(--white); }
.wordmark i { position: absolute; bottom: 0; left: 0; width: 36px; height: 2px; background: var(--gold); }
.site-nav { display: flex; align-items: center; gap: 30px; font-size: 12px; color: #e2edf6; }
.site-nav a { transition: color .25s ease; }
.site-nav a:hover, .site-nav a:focus-visible, .site-nav a.is-active { color: var(--gold-strong); }
.nav-toggle { display: none; border: 0; background: none; padding: 8px; cursor: pointer; }
.nav-toggle span { display: block; width: 23px; height: 1px; margin: 5px 0; background: var(--gold); transition: transform .25s ease, opacity .25s ease; }

.hero { display: flex; align-items: center; background: radial-gradient(circle at 78% 32%, rgba(52, 128, 185, .5), transparent 31%), linear-gradient(110deg, #071f33, var(--navy-900) 56%, #16496d); }
.hero .reveal { opacity: 1; transform: none; }
.hero::before { content: ''; position: absolute; inset: 0; pointer-events: none; background: linear-gradient(90deg, rgba(4, 22, 37, .2), transparent 55%, rgba(114,183,255,.06)); }
.hero-glow { position: absolute; border-radius: 50%; filter: blur(50px); pointer-events: none; opacity: .4; }
.hero-glow-left { left: 2%; top: 32%; width: 220px; height: 220px; background: #0d6ca5; }
.hero-glow-right { right: 8%; top: 10%; width: 180px; height: 180px; background: #e5aa41; opacity: .16; }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, .9fr) minmax(360px, 1.1fr); gap: 54px; align-items: center; padding: 72px 0 76px; }
.hero-copy { max-width: 560px; }
.eyebrow, .section-kicker { margin: 0 0 13px; color: var(--gold-strong); font-size: 11px; font-weight: 700; letter-spacing: .42em; }
.hero h1 { width: 100%; max-width: 100%; margin: 0; font-family: var(--serif); font-weight: 400; font-size: clamp(54px, 5vw, 78px); line-height: .9; letter-spacing: -.045em; overflow-wrap: break-word; word-wrap: break-word; }
.hero h1 span { color: var(--blue); white-space: nowrap; }
.hero-subtitle { margin: 21px 0 5px; color: var(--gold-strong); font-family: var(--serif); font-size: clamp(20px, 2vw, 28px); line-height: 1.2; }
.hero-support { grid-column: 2; max-width: 470px; margin-top: -28px; }
.hero-lede { max-width: 430px; margin: 0 0 18px; color: #d8e5ef; font-size: 15px; line-height: 1.45; }
.waitlist-button { min-width: 220px; min-height: 50px; letter-spacing: .12em; }
.waitlist-note { margin: 11px 0 17px; color: var(--blue-soft); font-size: 12px; line-height: 1.4; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; }
.cta-row.centered { justify-content: center; }
.hero-contact { gap: 9px; }
.hero-contact .button { min-height: 36px; padding: 0 11px; border-color: rgba(181,217,255,.35); background: transparent; color: var(--blue-soft); font-size: 10px; }
.hero-contact .button:hover, .hero-contact .button:focus-visible { border-color: var(--gold-strong); background: rgba(238,196,94,.08); }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 18px; border-radius: 8px; font-size: 12px; font-weight: 700; letter-spacing: .01em; transition: transform .25s ease, background .25s ease, border-color .25s ease, box-shadow .25s ease; }
.button:hover, .button:focus-visible { transform: translateY(-3px); box-shadow: 0 10px 30px rgba(0,0,0,.22); }
.button-primary { color: var(--navy-950); background: var(--gold-strong); }
.button-primary:hover, .button-primary:focus-visible { background: #ffe39a; }
.button-outline { color: var(--white); border: 1px solid var(--gold); background: rgba(4, 22, 37, .38); }
.button-outline:hover, .button-outline:focus-visible { border-color: var(--gold-strong); background: rgba(238, 196, 94, .13); }
.button-icon { width: 16px; height: 16px; margin-right: 8px; flex: 0 0 auto; }
.button-mark { display: inline-flex; align-items: center; justify-content: center; width: 16px; height: 16px; margin-right: 8px; border: 1px solid currentColor; border-radius: 3px; font-size: 9px; line-height: 1; }
.linkedin-mark { border-radius: 3px; font-size: 10px; font-weight: 800; }
.hero-book { position: relative; justify-self: end; width: min(100%, 600px); min-height: 560px; display: grid; place-items: center; }
.book-presentation { display: block; width: min(100%, 600px); height: auto; filter: drop-shadow(0 24px 22px rgba(0,0,0,.28)); }

h2 { margin: 0 0 24px; color: var(--blue); font-family: var(--serif); font-size: clamp(40px, 5vw, 62px); font-weight: 400; line-height: .98; letter-spacing: -.035em; }
.narrow-content { max-width: 1020px; }
.editorial-copy { color: #d6e2eb; font-size: 15px; line-height: 1.55; }
.editorial-copy p { margin: 0 0 17px; }
.editorial-copy p:last-child { margin-bottom: 0; }
.content-section:nth-of-type(even) { background: linear-gradient(180deg, rgba(18,62,96,.32), rgba(10,41,66,.18)); }

.themes-section { padding-top: 72px; padding-bottom: 84px; }
.theme-list { display: grid; gap: 9px; }
.theme-card { display: grid; grid-template-columns: 58px 1fr; gap: 19px; align-items: center; padding: 12px 20px 12px 12px; border: 1px solid var(--line); border-radius: 13px; background: linear-gradient(100deg, rgba(18,62,96,.82), rgba(13,53,83,.62)); transition: transform .25s ease, background .25s ease, border-color .25s ease; }
.theme-card:hover { transform: translateX(5px); border-color: var(--gold-strong); background: linear-gradient(100deg, rgba(15,57,87,.9), rgba(8,36,59,.58)); }
.theme-number { display: grid; place-items: center; width: 48px; height: 48px; border-radius: 10px; background: var(--gold-strong); color: var(--navy-950); font-size: 15px; font-weight: 800; }
.theme-card h3 { margin: 0 0 1px; color: var(--gold-strong); font-family: var(--serif); font-size: 17px; font-weight: 400; }
.theme-card p { margin: 0; color: #d5e1ea; font-size: 13px; line-height: 1.35; }

.audience-section { padding-top: 78px; }
.audience-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 9px; }
.audience-card { display: flex; align-items: center; gap: 15px; min-height: 78px; padding: 14px 17px; border: 1px solid rgba(238,196,94,.55); border-radius: 11px; background: rgba(18,62,96,.62); transition: background .25s ease, transform .25s ease; }
.audience-card:hover { transform: translateY(-3px); background: rgba(15,57,87,.78); }
.audience-card span { color: var(--gold-strong); font-size: 22px; line-height: 1; }
.audience-card p { margin: 0; color: #e5edf3; font-size: 13px; line-height: 1.25; }

.author-section { padding-top: 100px; padding-bottom: 106px; background: radial-gradient(circle at 23% 56%, rgba(47, 130, 182, .3), transparent 25%), #0a2942; }
.author-grid { display: grid; grid-template-columns: minmax(260px, .66fr) minmax(0, 1.34fr); gap: 70px; align-items: center; }
.portrait-wrap { justify-self: center; width: min(100%, 330px); aspect-ratio: 1 / 1; }
.portrait-wrap img { display: block; width: 100%; height: 100%; object-fit: cover; object-position: 50% 42%; }
.author-copy h2 { margin-bottom: 8px; font-size: clamp(38px, 4vw, 58px); }
.author-role { margin: 0 0 24px; color: var(--gold-strong); font-family: var(--serif); font-size: 15px; }

.contact-section { padding: 82px 0; background: linear-gradient(108deg, #0d3553, #0a2942 52%, #123e60); }
.contact-panel { position: relative; overflow: hidden; padding: 58px 30px 62px; text-align: center; border: 1px solid var(--line); border-radius: 15px; background: radial-gradient(circle at 85% 15%, rgba(80, 148, 207, .22), transparent 26%), linear-gradient(145deg, rgba(7,31,51,.92), rgba(8,42,67,.73)); }
.contact-panel > * { position: relative; z-index: 1; }
.contact-panel .eyebrow { margin-bottom: 18px; }
.contact-panel h2 { margin-bottom: 12px; color: var(--white); font-size: clamp(34px, 5vw, 62px); }
.contact-copy { margin: 0 auto 26px; max-width: 650px; color: #d8e5ef; font-size: 14px; line-height: 1.5; }
.contact-panel .button { min-width: 168px; }

.site-footer { background: #03121f; }
.footer-wrap { min-height: 78px; display: flex; align-items: center; gap: 22px; color: #8fa7ba; font-size: 11px; }
.footer-rule { display: block; width: 110px; height: 1px; background: var(--gold); opacity: .62; }
.footer-wrap nav { display: flex; gap: 18px; margin-left: auto; }
.footer-wrap nav a:hover, .footer-wrap nav a:focus-visible { color: var(--gold-strong); }

.reveal { opacity: 1; transform: none; transition: opacity .75s ease, transform .75s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.reveal-delay { transition-delay: .12s; }
:focus-visible { outline: 2px solid var(--gold-strong); outline-offset: 4px; }

@media (max-width: 860px) {
  .container { width: min(calc(100% - 40px), var(--container)); }
  .hero-grid { grid-template-columns: 1fr; gap: 20px; padding-top: 56px; }
  .hero-copy { max-width: 640px; }
  .hero-book { justify-self: center; min-height: 470px; width: min(100%, 560px); }
  .book-presentation { width: min(100%, 560px); }
  .hero-support { grid-column: auto; max-width: 640px; margin-top: -8px; }
  .author-grid { grid-template-columns: 1fr; gap: 44px; }
  .portrait-wrap { width: min(100%, 290px); }
  .author-copy { max-width: 760px; }
}

@media (max-width: 680px) {
  .container { width: min(calc(100% - 32px), var(--container)); }
  .nav-wrap { min-height: 68px; }
  .nav-toggle { display: block; }
  .site-nav { position: absolute; top: 68px; left: 0; right: 0; display: grid; gap: 0; padding: 8px 16px 16px; background: rgba(4,22,37,.97); border-bottom: 1px solid rgba(238,196,94,.25); transform: translateY(-140%); opacity: 0; pointer-events: none; transition: transform .25s ease, opacity .25s ease; }
  .site-nav.is-open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .site-nav a { padding: 13px 4px; border-bottom: 1px solid rgba(114,183,255,.11); font-size: 13px; }
  .hero-grid { display: flex; flex-direction: column; align-items: stretch; gap: 0; padding: 26px 0 24px; }
  .hero-copy.reveal { display: contents; opacity: 1; transform: none; }
  .hero-copy .eyebrow { order: 1; }
  .hero-copy h1 { order: 2; }
  .hero-copy .hero-subtitle { order: 3; }
  .hero-book { order: 4; }
  .hero-support { order: 5; }
  .hero h1 { font-size: clamp(42px, 13vw, 62px); letter-spacing: -.055em; line-height: .92; }
  .hero h1 span { display: block; max-width: 100%; }
  .hero-subtitle { font-size: 21px; }
  .hero-lede { margin: 8px 0 16px; font-size: 13px; }
  .cta-row { display: grid; grid-template-columns: 1fr; }
  .button { width: 100%; }
  .hero-contact { display: flex; flex-wrap: wrap; gap: 8px; }
  .hero-contact .button { width: auto; min-height: 36px; padding: 0 9px; font-size: 10px; }
  .waitlist-button { width: min(100%, 260px); min-height: 46px; }
  .waitlist-note { max-width: 300px; font-size: 12px; }
  .hero-book { min-height: 0; padding: 6px 0 12px; }
  .book-presentation { width: min(100%, 350px); }
  .content-section { padding: 68px 0; }
  h2 { font-size: clamp(38px, 12vw, 52px); }
  .section-kicker { font-size: 10px; }
  .editorial-copy { font-size: 14px; }
  .theme-card { grid-template-columns: 46px 1fr; gap: 13px; padding: 11px; }
  .theme-number { width: 42px; height: 42px; font-size: 13px; }
  .theme-card h3 { font-size: 16px; }
  .theme-card p { font-size: 12px; }
  .audience-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
  .audience-card { min-height: 86px; padding: 12px; gap: 10px; }
  .audience-card span { font-size: 19px; }
  .audience-card p { font-size: 11px; }
  .author-section { padding-top: 72px; padding-bottom: 78px; }
  .author-copy h2 { font-size: clamp(38px, 11vw, 50px); }
  .contact-section { padding: 56px 0; }
  .contact-panel { padding: 48px 17px 52px; }
  .contact-copy { font-size: 13px; }
  .contact-panel .button { min-width: 0; width: auto; }
  .footer-wrap { min-height: 98px; flex-wrap: wrap; gap: 12px; padding: 20px 0; }
  .footer-rule { display: none; }
  .footer-wrap nav { width: 100%; margin-left: 0; gap: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}