:root {
  --paper: #F7F8FB;
  --paper-2: #ECEFF5;
  --ink: #0E1A2E;
  --ink-2: #33405A;
  --muted: #66718A;
  --line: #DCE1EB;
  --navy: #043E7D;
  --navy-deep: #032B57;
  --cyan: #1FA6E0;
  --yellow: #F5CE3E;
  --display: "Oswald", "Arial Narrow", Impact, sans-serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --wrap: 1120px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  background: var(--paper);
  color: var(--ink);
  font: 400 17px/1.65 var(--sans);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 10;
  background: rgba(247, 248, 251, .92);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { font: 700 21px/1 var(--display); text-decoration: none; text-transform: uppercase; letter-spacing: .02em; color: var(--navy); }
.brand span { color: var(--cyan); }
.nav-links { display: flex; gap: 26px; align-items: center; }
.nav-links a { text-decoration: none; font-size: 15px; font-weight: 500; color: var(--ink-2); }
.nav-links a:hover { color: var(--navy); }
.nav-links .nav-cta { background: var(--navy); color: #fff; padding: 8px 16px; border-radius: 999px; }
.nav-links .nav-cta:hover { background: var(--navy-deep); color: #fff; }

/* Hero */
.hero { padding: 80px 0 96px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.25fr 1fr; gap: 56px; align-items: center; }
.eyebrow { font-size: 13px; letter-spacing: .14em; text-transform: uppercase; color: var(--cyan); font-weight: 700; margin-bottom: 18px; }
.hero h1 {
  font: 700 clamp(64px, 10vw, 128px)/.92 var(--display);
  text-transform: uppercase; letter-spacing: .005em; color: var(--navy);
}
.subtitle { font: 600 clamp(20px, 2.4vw, 28px)/1.3 var(--display); text-transform: uppercase; letter-spacing: .04em; margin: 22px 0 20px; }
.subtitle mark { background: linear-gradient(transparent 55%, var(--yellow) 55%); color: var(--ink); padding: 0 2px; }
.subtitle em { font-style: italic; }
.lead { font-size: 19px; color: var(--ink-2); max-width: 34em; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 32px 0 40px; }
.btn {
  display: inline-block; text-decoration: none; font-weight: 600; font-size: 16px;
  padding: 14px 26px; border-radius: 999px; transition: background .15s, color .15s, border-color .15s;
}
.btn-primary { background: var(--navy); color: #fff; }
.btn-primary:hover { background: var(--navy-deep); }
.btn-ghost { border: 1.5px solid var(--navy); color: var(--navy); }
.btn-ghost:hover { background: var(--navy); color: #fff; }
.facts { display: flex; gap: 36px; border-top: 1px solid var(--line); padding-top: 22px; flex-wrap: wrap; }
.facts dt { font-size: 12px; text-transform: uppercase; letter-spacing: .12em; color: var(--muted); }
.facts dd { font: 600 22px/1.3 var(--display); color: var(--navy); }

.hero-book { display: flex; justify-content: center; perspective: 1400px; position: relative; }
.hero-book::before {
  content: ""; position: absolute; width: 78%; aspect-ratio: 1; border-radius: 50%;
  background: radial-gradient(circle, rgba(31, 166, 224, .22), transparent 68%);
  top: 50%; left: 50%; transform: translate(-50%, -50%);
}
.book {
  position: relative; width: min(320px, 80%);
  transform: rotateY(-14deg) rotateX(3deg);
  transition: transform .5s ease;
  box-shadow: 30px 40px 60px -20px rgba(3, 43, 87, .45);
  border-radius: 2px 6px 6px 2px;
}
.book::before {
  content: ""; position: absolute; inset: 0 auto 0 0; width: 14px;
  background: linear-gradient(90deg, rgba(0,0,0,.25), rgba(255,255,255,.18) 60%, rgba(0,0,0,.08));
  border-radius: 2px 0 0 2px;
}
.book img { width: 100%; height: auto; border-radius: 2px 6px 6px 2px; }
.book:hover { transform: rotateY(-4deg) rotateX(1deg); }

/* Quote */
.quote-band { background: var(--navy); color: #fff; padding: 64px 0; }
.quote-band blockquote { max-width: 860px; margin: 0 auto; text-align: center; }
.quote-band p { font: 500 clamp(22px, 2.8vw, 32px)/1.35 var(--display); }
.quote-band em { color: var(--yellow); font-style: normal; }
.quote-band footer { margin-top: 20px; font-size: 15px; color: #B7CBE3; }
.quote-band footer strong { color: #fff; }
.quote-band a { color: #B7CBE3; }

/* Sections */
.section { padding: 104px 0; }
.section-alt { background: var(--paper-2); }
.kicker { font-size: 13px; letter-spacing: .14em; text-transform: uppercase; color: var(--cyan); font-weight: 700; margin-bottom: 14px; }
.section h2 { font: 700 clamp(32px, 4vw, 48px)/1.1 var(--display); text-transform: uppercase; color: var(--navy); margin-bottom: 24px; }
.two-col { display: grid; grid-template-columns: 1fr 1.3fr; gap: 64px; }
.prose p { color: var(--ink-2); margin-bottom: 18px; }
.prose p:last-child { margin-bottom: 0; }

.pillars { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 72px; }
.pillars article { border-top: 3px solid var(--navy); padding-top: 20px; }
.pillars .num { font: 700 15px/1 var(--display); color: var(--cyan); }
.pillars h3 { font: 600 21px/1.25 var(--display); text-transform: uppercase; color: var(--navy); margin: 10px 0 8px; }
.pillars p { font-size: 15px; color: var(--muted); }

/* TOC */
.toc { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-top: 16px; }
.toc-part { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 28px 30px; }
.toc-part h3 { font: 600 21px/1.3 var(--display); text-transform: uppercase; color: var(--navy); margin-bottom: 16px; }
.toc-part h3 span { display: block; font: 700 12px/1.4 var(--sans); letter-spacing: .14em; color: var(--cyan); margin-bottom: 4px; }
.toc-part ol { list-style: none; counter-reset: ch 0; }
.toc-part ol li {
  display: flex; gap: 14px; padding: 9px 0; border-top: 1px dashed var(--line); font-size: 16px;
}
.toc-part ol li::before {
  counter-increment: ch; content: counter(ch, decimal-leading-zero);
  font: 600 14px/1.7 var(--sans); color: var(--muted); min-width: 22px; font-variant-numeric: tabular-nums;
}
.toc-part ol[start="6"]  { counter-reset: ch 5; }
.toc-part ol[start="15"] { counter-reset: ch 14; }
.toc-part ol[start="20"] { counter-reset: ch 19; }
.toc-note { margin-top: 20px; color: var(--muted); font-size: 15px; }

/* Videos */
.videos { background: var(--navy-deep); color: #fff; }
.videos h2 { color: #fff; }
.kicker-light { color: var(--yellow); }
.videos-lead { color: #B7CBE3; max-width: 40em; margin-bottom: 40px; }
.video-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px 20px; }
.video h3 { font: 600 16px/1.35 var(--sans); margin-top: 12px; }
.video p { font-size: 13px; color: #8FA7C6; margin-top: 4px; }
.yt, .video iframe {
  display: block; width: 100%; aspect-ratio: 16 / 9; border: 0; border-radius: 8px;
  overflow: hidden; background: #000;
}
.yt { position: relative; cursor: pointer; padding: 0; }
.yt img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s, opacity .3s; opacity: .9; }
.yt::after {
  content: ""; position: absolute; top: 50%; left: 50%; width: 54px; height: 54px; margin: -27px 0 0 -27px;
  border-radius: 50%; background: var(--yellow) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M8 5v14l11-7z' fill='%23032B57'/%3E%3C/svg%3E") 55% 50% / 26px no-repeat;
  box-shadow: 0 6px 18px rgba(0,0,0,.35); transition: transform .2s;
}
.yt:hover img, .yt:focus-visible img { transform: scale(1.04); opacity: 1; }
.yt:hover::after, .yt:focus-visible::after { transform: scale(1.1); }
.yt:focus-visible { outline: 3px solid var(--yellow); outline-offset: 3px; }
.dur {
  position: absolute; right: 8px; bottom: 8px; background: rgba(0,0,0,.78); color: #fff;
  font: 600 12px/1 var(--sans); padding: 4px 6px; border-radius: 4px;
}
.clips-title { font: 600 22px/1.2 var(--display); text-transform: uppercase; margin: 64px 0 24px; color: var(--yellow); }
.clips { grid-template-columns: repeat(5, 1fr); }
.clips .yt::after { width: 42px; height: 42px; margin: -21px 0 0 -21px; background-size: 20px; }
.clips h3 { font-size: 14px; }
.channel { margin-top: 48px; }
.videos .link-arrow { color: var(--yellow); }

/* Author */
.author { display: grid; grid-template-columns: 160px 1fr; gap: 48px; align-items: center; max-width: 900px; }
.author-mark {
  width: 160px; height: 160px; border-radius: 50%;
  background: var(--navy); color: #fff;
  display: grid; place-items: center;
  font: 700 56px/1 var(--display);
  box-shadow: inset 0 -26px 0 var(--cyan);
}
.author .prose { margin-bottom: 16px; }
.link-arrow { color: var(--navy); font-weight: 600; text-decoration: none; }
.link-arrow::after { content: " →"; }
.link-arrow:hover { text-decoration: underline; }

/* Buy */
.buy { background: var(--paper-2); text-align: center; }
.buy-lead { font-size: 17px; color: var(--ink-2); margin-bottom: 40px; }
.stores { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; max-width: 880px; margin: 0 auto; }
.store {
  display: flex; flex-direction: column; gap: 6px; text-decoration: none;
  background: #fff; color: var(--ink); border: 1px solid var(--line); border-top: 4px solid var(--navy);
  border-radius: 12px; padding: 26px 20px;
  transition: transform .15s, box-shadow .15s, border-color .15s;
}
.store:hover { transform: translateY(-3px); box-shadow: 0 16px 30px -14px rgba(3, 43, 87, .35); border-top-color: var(--cyan); }
.store-name { font: 600 24px/1.2 var(--display); text-transform: uppercase; color: var(--navy); }
.store-go { font-size: 14px; color: var(--cyan); font-weight: 600; }
.first-edition {
  display: flex; gap: 20px; align-items: center; text-align: left;
  max-width: 560px; margin: 48px auto 0; padding: 20px; background: #fff;
  border: 1px dashed var(--line); border-radius: 12px;
}
.first-edition img { width: 64px; height: auto; border-radius: 2px; box-shadow: 4px 6px 12px rgba(0,0,0,.15); }
.first-edition h3 { font: 600 18px/1.3 var(--display); text-transform: uppercase; color: var(--navy); }
.first-edition p { font-size: 14px; color: var(--muted); margin: 4px 0 6px; }
.first-edition .link-arrow { font-size: 14px; }

/* Hashtag */
.hashtag { background: var(--yellow); padding: 56px 0; }
.hashtag-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.tag { font: 700 clamp(30px, 4.4vw, 52px)/1 var(--display); color: var(--navy-deep); word-break: break-word; }
.hashtag-lead { color: var(--navy-deep); font-weight: 500; flex: 1 1 200px; }
.socials { display: flex; gap: 10px; flex-wrap: wrap; }
.socials a {
  text-decoration: none; font-weight: 600; font-size: 15px;
  background: var(--navy-deep); color: #fff; padding: 10px 18px; border-radius: 999px;
}
.socials a:hover { background: var(--navy); }

/* Footer */
.site-footer { background: var(--ink); color: #A9B4C8; padding: 36px 0; font-size: 14px; }
.footer-inner { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.site-footer strong, .site-footer a { color: #fff; }
.muted { color: #7C879C; }

/* Responsive */
@media (max-width: 1000px) {
  .video-grid { grid-template-columns: repeat(3, 1fr); }
  .clips { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 900px) {
  .hero { padding: 48px 0 72px; }
  .hero-grid, .two-col { grid-template-columns: 1fr; gap: 40px; }
  .hero-book { order: -1; }
  .book { width: min(220px, 60%); }
  .pillars { grid-template-columns: repeat(2, 1fr); margin-top: 48px; }
  .toc { grid-template-columns: 1fr; }
  .stores { grid-template-columns: 1fr; }
  .section { padding: 72px 0; }
  .video-grid, .clips { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .wrap { padding: 0 16px; }
  .nav-links a:not(.nav-cta) { display: none; }
  .pillars { grid-template-columns: 1fr; }
  .author { grid-template-columns: 1fr; gap: 24px; }
  .author-mark { width: 110px; height: 110px; font-size: 40px; box-shadow: inset 0 -18px 0 var(--cyan); }
  .toc-part { padding: 22px 18px; }
  .facts { gap: 24px; }
  .video-grid { grid-template-columns: 1fr; }
  .clips { grid-template-columns: repeat(2, 1fr); gap: 20px 14px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .book, .store, .yt img, .yt::after { transition: none; }
}

/* Praise (back cover) */
.praise-grid { columns: 3 300px; column-gap: 20px; margin-top: 16px; }
.praise-card {
  break-inside: avoid; margin: 0 0 20px; background: #fff;
  border: 1px solid var(--line); border-left: 4px solid var(--cyan); border-radius: 10px;
  padding: 24px 24px 20px;
}
.praise-card blockquote { font-size: 16px; line-height: 1.6; color: var(--ink-2); }
.praise-card blockquote::before { content: "“"; display: block; font: 700 44px/0.6 var(--display); color: var(--yellow); margin-bottom: 10px; }
.praise-card figcaption { margin-top: 16px; font-size: 14px; }
.praise-card figcaption strong { display: block; color: var(--navy); font-weight: 700; }
.praise-card figcaption span { color: var(--muted); }
.praise-note { margin-top: 8px; font-size: 14px; color: var(--muted); }
.praise-note a { color: var(--navy); }