@import url('https://fonts.googleapis.com/css2?family=Archivo+Black&family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
  --blue: #153f91;
  --blue-dark: #0a255a;
  --blue-light: #eaf1ff;
  --ink: #182033;
  --muted: #647086;
  --cream: #f7f3eb;
  --white: #fff;
  --gold: #e9b949;
  --shadow: 0 18px 50px rgba(16, 40, 86, .14);
  --radius: 22px;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--white); font-family: 'Space Grotesk', sans-serif; line-height: 1.65; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
.wrap { width: min(calc(100% - 40px), var(--max)); margin-inline: auto; }
.skip { position: absolute; left: -999px; top: 8px; z-index: 99; padding: 10px 14px; background: white; }
.skip:focus { left: 8px; }

.site-header { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.94); backdrop-filter: blur(12px); border-bottom: 1px solid #e8ecf4; }
.nav { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { color: var(--blue); text-decoration: none; font-family: 'Archivo Black', sans-serif; font-size: clamp(1rem, 2vw, 1.35rem); letter-spacing: -.03em; text-transform: uppercase; }
.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links a { text-decoration: none; font-weight: 700; color: #31415f; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--blue); }
.nav-buy { padding: 11px 18px; border-radius: 999px; color: white !important; background: var(--blue); }
.menu-button { display: none; border: 0; background: transparent; font: inherit; font-weight: 700; color: var(--blue); }

.hero { overflow: hidden; background: linear-gradient(125deg, #f8f5ee 0%, #fff 48%, #eaf1ff 100%); }
.hero-grid { min-height: 670px; display: grid; grid-template-columns: 1.02fr .98fr; align-items: center; gap: 54px; padding-block: 72px; }
.eyebrow { margin: 0 0 14px; color: var(--blue); font-size: .82rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
h1, h2, h3 { margin-top: 0; line-height: 1.08; }
h1, h2 { font-family: 'Archivo Black', sans-serif; letter-spacing: -.045em; }
h1 { margin-bottom: 22px; font-size: clamp(3rem, 6.2vw, 5.8rem); }
h2 { margin-bottom: 18px; font-size: clamp(2rem, 4vw, 3.4rem); }
h3 { font-size: 1.35rem; }
.lead { max-width: 700px; margin: 0 0 30px; color: #43506a; font-size: clamp(1.08rem, 2vw, 1.35rem); }
.button-row { display: flex; flex-wrap: wrap; gap: 13px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 50px; padding: 13px 22px; border: 2px solid var(--blue); border-radius: 999px; text-decoration: none; font-weight: 800; transition: .2s ease; }
.button.primary { color: white; background: var(--blue); }
.button.secondary { color: var(--blue); background: white; }
.button.amazon { color: #111; background: var(--gold); border-color: var(--gold); }
.button:hover { transform: translateY(-2px); box-shadow: 0 10px 22px rgba(20, 60, 135, .18); }
.hero-art { position: relative; }
.hero-art::before { content: ''; position: absolute; inset: 8% -8% -8% 6%; z-index: 0; border-radius: 45% 55% 42% 58%; background: var(--blue); transform: rotate(-4deg); opacity: .08; }
.hero-art img { position: relative; z-index: 1; width: 100%; filter: drop-shadow(0 26px 30px rgba(15, 35, 75, .20)); }

.proof { background: var(--blue-dark); color: white; }
.proof-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; }
.proof-item { padding: 31px 34px; border-left: 1px solid rgba(255,255,255,.18); }
.proof-item:first-child { border-left: 0; }
.proof strong { display: block; color: #bcd0ff; font-size: .8rem; letter-spacing: .12em; text-transform: uppercase; }
.proof span { font-size: 1.1rem; font-weight: 700; }

.section { padding-block: 96px; }
.section.soft { background: var(--cream); }
.section.blue { background: var(--blue-light); }
.section-intro { max-width: 760px; margin-bottom: 42px; }
.section-intro p { color: var(--muted); font-size: 1.12rem; }
.book-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 25px; }
.book-card { display: flex; flex-direction: column; overflow: hidden; border: 1px solid #e3e8f1; border-radius: var(--radius); background: white; box-shadow: 0 8px 24px rgba(20, 45, 90, .06); }
.book-cover { display: grid; place-items: center; min-height: 370px; padding: 30px; background: linear-gradient(145deg, #eef3fb, #fbfaf6); }
.book-cover img { width: auto; max-height: 320px; box-shadow: 0 18px 26px rgba(18, 31, 58, .2); }
.book-copy { display: flex; flex: 1; flex-direction: column; padding: 25px; }
.book-copy p { margin-top: 0; color: var(--muted); }
.book-copy .button { margin-top: auto; align-self: flex-start; }
.tag { display: inline-block; margin-bottom: 10px; color: var(--blue); font-size: .76rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.guide-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.guide-card { padding: 26px; border-radius: 18px; background: white; border: 1px solid #dce5f8; }
.guide-card .number { display: grid; place-items: center; width: 36px; height: 36px; margin-bottom: 18px; border-radius: 50%; color: white; background: var(--blue); font-weight: 800; }
.quote { padding: 48px; border-radius: var(--radius); color: white; background: var(--blue); box-shadow: var(--shadow); }
.quote p { margin: 0; font-size: clamp(1.45rem, 3vw, 2.25rem); line-height: 1.35; font-weight: 600; }

.page-hero { padding-block: 84px 66px; text-align: center; background: linear-gradient(145deg, var(--cream), var(--blue-light)); }
.page-hero h1 { max-width: 980px; margin-inline: auto; font-size: clamp(2.7rem, 6vw, 5.2rem); }
.page-hero .lead { margin-inline: auto; }
.books-list { display: grid; gap: 32px; }
.book-row { display: grid; grid-template-columns: 250px 1fr; gap: 45px; align-items: center; padding: 36px; border: 1px solid #e2e7f0; border-radius: var(--radius); background: white; }
.book-row:nth-child(even) { background: #f9fbff; }
.book-row img { max-height: 330px; margin-inline: auto; box-shadow: 0 16px 24px rgba(20, 33, 60, .2); }
.book-row p { color: #536079; }
.media-split { display: grid; grid-template-columns: 1fr 1fr; gap: 55px; align-items: center; }
.media-split img { border-radius: var(--radius); box-shadow: var(--shadow); }
.topics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.topic { padding: 24px; border-radius: 16px; background: white; border: 1px solid #dfe5ef; font-weight: 700; }
.video-hero { padding-block: 68px 58px; }
.video-hero h1 { font-size: clamp(2.6rem, 5.4vw, 4.8rem); }
.video-section { padding-top: 60px; }
.video-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 46px 22px; }
.video-card { min-width: 0; }
.video-card video { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; border-radius: 4px; background: #111; box-shadow: 0 10px 28px rgba(16, 35, 70, .14); }
.video-card h2 { margin: 15px 0 0; color: #171717; font-size: clamp(1.3rem, 2.4vw, 2rem); letter-spacing: -.035em; text-align: center; text-transform: uppercase; }

.site-footer { padding-block: 54px; color: #dce6ff; background: #081c45; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 45px; }
.footer-title { color: white; font-family: 'Archivo Black', sans-serif; text-transform: uppercase; }
.footer-links { display: grid; gap: 9px; }
.footer-links a { color: #dce6ff; text-decoration: none; }
.footer-note { margin-top: 35px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.15); color: #9fb1d7; font-size: .88rem; }

@media (max-width: 900px) {
  .hero-grid, .media-split { grid-template-columns: 1fr; }
  .hero-grid { padding-block: 56px; }
  .hero-art { max-width: 650px; margin-inline: auto; }
  .book-grid, .topics { grid-template-columns: repeat(2, 1fr); }
  .guide-grid { grid-template-columns: repeat(2, 1fr); }
  .menu-button { display: block; }
  .nav-links { display: none; position: absolute; top: 78px; left: 0; right: 0; padding: 24px; flex-direction: column; align-items: stretch; background: white; border-bottom: 1px solid #e5eaf2; }
  .nav-links.open { display: flex; }
}

@media (max-width: 640px) {
  .wrap { width: min(calc(100% - 26px), var(--max)); }
  .section { padding-block: 68px; }
  .proof-grid, .book-grid, .guide-grid, .topics, .footer-grid { grid-template-columns: 1fr; }
  .proof-item { border-left: 0; border-top: 1px solid rgba(255,255,255,.15); }
  .proof-item:first-child { border-top: 0; }
  .book-row { grid-template-columns: 1fr; padding: 24px; }
  .quote { padding: 30px; }
  .video-grid { grid-template-columns: 1fr; gap: 36px; }
}