:root {
  --blue: #0a5fc8;
  --blue-2: #126dde;
  --deep-blue: #082f76;
  --teal: #13d4e6;
  --red: #e10600;
  --green: #4b9e16;
  --yellow: #f4c400;
  --ink: #0b1020;
  --muted: #5f6d7a;
  --soft: #f4f9ff;
  --line: #dce7f5;
  --shadow: 0 30px 80px rgba(10, 95, 200, .15);
  --container: 1180px;
  --radius: 24px;
  --font: Avenir Next, Avenir, Montserrat, Inter, Helvetica Neue, Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: #fff;
  line-height: 1.5;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.container { width: min(var(--container), calc(100% - 48px)); margin: 0 auto; }
.skip-link { position: absolute; left: -999px; top: 10px; background: #fff; color: var(--deep-blue); padding: 8px 12px; border: 2px solid var(--blue); z-index: 100; }
.skip-link:focus { left: 10px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(10,95,200,.10);
}
.header-inner { height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { line-height: 1; display: inline-flex; flex-direction: column; align-items: flex-start; }
.brand-main { display: block; font-size: clamp(1.6rem, 3vw, 2.55rem); font-weight: 500; letter-spacing: -0.06em; color: var(--teal); }
.brand-main strong { color: var(--blue); font-weight: 700; }
.brand-sub { display: block; margin-top: 4px; color: var(--red); font-size: .85rem; font-weight: 700; letter-spacing: .03em; }
.main-nav { display: flex; align-items: center; gap: 34px; font-size: .78rem; font-weight: 800; letter-spacing: .04em; text-transform: uppercase; }
.main-nav a:not(.nav-buy) { color: #171d2b; }
.main-nav a:hover { color: var(--blue); }
.nav-buy { color: #fff; background: var(--red); padding: 13px 24px; border-radius: 8px; box-shadow: 0 14px 28px rgba(225,6,0,.22); }
.mobile-toggle { display: none; border: 0; background: transparent; padding: 10px; }
.mobile-toggle span { display: block; width: 26px; height: 2px; background: var(--deep-blue); margin: 5px 0; }

.section { position: relative; padding: 82px 0; overflow: hidden; }
.soft { background: linear-gradient(180deg, #f5faff 0%, #ffffff 100%); }
.hero { min-height: 800px; display: flex; align-items: center; padding-top: 58px; }
.hero-grid { display: grid; grid-template-columns: .92fr 1.08fr; align-items: center; gap: 50px; position: relative; z-index: 2; }
.eyebrow { color: var(--red); font-weight: 800; letter-spacing: .18em; text-transform: uppercase; font-size: .78rem; margin: 0 0 18px; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(2.4rem, 6vw, 5.65rem); line-height: .98; letter-spacing: -.055em; margin-bottom: 28px; color: var(--blue); }
h1 span { color: var(--teal); display: block; }
.hero-lead { font-size: clamp(1.02rem, 1.6vw, 1.25rem); max-width: 570px; color: #1b2230; margin-bottom: 22px; }
.hero-lead.strong { font-weight: 700; }
.hero-list { margin: 24px 0 34px; font-size: 1.05rem; }
.hero-list p { margin: 5px 0; }
.blue-text { color: var(--blue); }
.red-text { color: var(--red); }
.green-text { color: var(--green); }
.cta-row { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }
.cta-row.center { justify-content: center; }
.cta-row.compact { margin-top: 22px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 54px;
  padding: 0 26px;
  border-radius: 10px;
  font-weight: 900;
  letter-spacing: .02em;
  font-size: .88rem;
  text-transform: uppercase;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
  border: 2px solid transparent;
}
.btn:hover { transform: translateY(-2px); }
.btn-red { background: var(--red); color: #fff; box-shadow: 0 16px 34px rgba(225,6,0,.22); }
.btn-blue { background: var(--blue); color: #fff; box-shadow: 0 16px 34px rgba(10,95,200,.22); }
.btn-outline { color: var(--blue); border-color: var(--blue); background: rgba(255,255,255,.9); }
.btn-sm { min-height: 42px; padding: 0 18px; font-size: .78rem; }
.amazon-a { font-family: Georgia, serif; font-size: 1.35em; font-weight: 700; }
.book-stage { position: relative; min-height: 620px; display: flex; align-items: center; justify-content: center; }
.book-3d { position: relative; width: min(380px, 72vw); z-index: 3; filter: drop-shadow(0 40px 70px rgba(0,38,90,.22)); transform: perspective(1000px) rotateY(-7deg) rotateX(1deg); }
.book-3d::before { content:""; position:absolute; left:-18px; top:8px; width:22px; height:calc(100% - 18px); background: linear-gradient(90deg,#e7eef9,#fff 55%,#d6e5f6); transform: skewY(3deg); border-radius: 7px 0 0 7px; z-index:-1; }
.book-3d img { border-radius: 7px; border: 1px solid rgba(0,0,0,.08); }
.brain-float { position: absolute; right: -150px; bottom: 6px; width: 690px; max-width: none; opacity: .96; z-index: 1; }
.elephant { position: absolute; z-index: 4; pointer-events: none; }
.elephant-hero { right: -170px; top: 230px; width: 280px; opacity: .96; }

.wire { position: absolute; pointer-events: none; z-index: 0; opacity: .85; }
.wire::before { content:""; position:absolute; inset:0; background-repeat: no-repeat; background-size: contain; }
.wire-top-left { left: -40px; top: 84px; width: 340px; height: 84px; background:
  radial-gradient(80px 15px at 20% 45%, transparent 60%, rgba(10,95,200,.7) 61%, transparent 64%),
  linear-gradient(8deg, transparent 48%, #e10600 49%, #e10600 51%, transparent 52%),
  linear-gradient(-8deg, transparent 48%, #13d4e6 49%, #13d4e6 51%, transparent 52%),
  linear-gradient(0deg, transparent 48%, #4b9e16 49%, #4b9e16 51%, transparent 52%);
  border-radius: 50%; transform: rotate(-5deg); }
.wire-hero { left: 42%; right: -2%; bottom: 74px; height: 170px; background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 220" preserveAspectRatio="none"><path d="M0 140 C180 60 260 210 430 120 S730 40 910 128 1100 190 1200 100" fill="none" stroke="%230a5fc8" stroke-width="5" opacity=".55"/><path d="M0 160 C190 80 280 180 440 150 S700 90 940 160 1120 30 1200 115" fill="none" stroke="%23e10600" stroke-width="4" opacity=".48"/><path d="M0 120 C200 160 350 25 520 100 S780 185 960 95 1100 150 1200 80" fill="none" stroke="%2313d4e6" stroke-width="4" opacity=".45"/><path d="M0 180 C170 110 260 150 430 185 S730 115 900 168 1080 125 1200 150" fill="none" stroke="%234b9e16" stroke-width="3" opacity=".45"/></svg>') center/100% 100% no-repeat; }
.wire-under { left: 32%; right: 0; bottom: 0; height: 80px; background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 900 90" preserveAspectRatio="none"><path d="M0 60 C160 5 250 90 410 45 S680 75 900 18" fill="none" stroke="%230a5fc8" stroke-width="4"/><path d="M0 70 C180 30 310 60 470 70 S720 4 900 45" fill="none" stroke="%23e10600" stroke-width="3"/><path d="M0 40 C160 75 280 5 460 40 S750 80 900 22" fill="none" stroke="%2313d4e6" stroke-width="3"/><path d="M0 54 C170 60 310 12 460 62 S690 66 900 40" fill="none" stroke="%234b9e16" stroke-width="3"/></svg>') center/100% 100% no-repeat; opacity:.8; }
.wire-left-curve { left: -10px; top: 34px; width: 280px; height: 420px; background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 250 420"><path d="M20 20 C210 110 35 220 210 390" fill="none" stroke="%230a5fc8" stroke-width="5"/><path d="M0 40 C200 130 20 260 230 410" fill="none" stroke="%23e10600" stroke-width="4"/><path d="M45 0 C205 115 55 210 245 360" fill="none" stroke="%2313d4e6" stroke-width="4"/><path d="M10 100 C150 145 85 250 210 330" fill="none" stroke="%234b9e16" stroke-width="4"/></svg>') center/contain no-repeat; }
.wire-right-curve { right: -10px; bottom: 0; width: 260px; height: 390px; transform: scaleX(-1); background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 250 420"><path d="M20 20 C210 110 35 220 210 390" fill="none" stroke="%230a5fc8" stroke-width="5"/><path d="M0 40 C200 130 20 260 230 410" fill="none" stroke="%23e10600" stroke-width="4"/><path d="M45 0 C205 115 55 210 245 360" fill="none" stroke="%2313d4e6" stroke-width="4"/><path d="M10 100 C150 145 85 250 210 330" fill="none" stroke="%234b9e16" stroke-width="4"/></svg>') center/contain no-repeat; }
.wire-resources, .wire-proof, .wire-final { left: 0; right: 0; bottom: 0; height: 92px; background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1400 120" preserveAspectRatio="none"><path d="M0 80 C180 20 260 110 450 55 S760 18 920 70 1180 110 1400 40" fill="none" stroke="%230a5fc8" stroke-width="4"/><path d="M0 98 C210 40 350 86 550 86 S880 40 1080 92 1260 55 1400 75" fill="none" stroke="%23e10600" stroke-width="4"/><path d="M0 55 C200 105 340 10 570 65 S880 105 1040 52 1240 65 1400 30" fill="none" stroke="%2313d4e6" stroke-width="4"/><path d="M0 70 C180 80 390 30 600 72 S900 62 1100 72 1270 30 1400 52" fill="none" stroke="%234b9e16" stroke-width="3"/></svg>') center/100% 100% no-repeat; opacity:.74; }
.wire-final { top: 0; bottom: auto; transform: rotate(180deg); opacity: .55; }

.thoughts-grid { display: grid; grid-template-columns: .75fr 1.25fr; gap: 60px; align-items: center; position: relative; z-index: 1; }
h2 { font-size: clamp(2rem, 4vw, 3.2rem); line-height: 1.08; letter-spacing: -.045em; color: var(--deep-blue); margin-bottom: 22px; }
.section-intro p { font-size: 1.05rem; color: #1e2b3a; max-width: 430px; }
.blue-callout { color: var(--blue) !important; font-weight: 900; }
.text-link { color: var(--blue); font-weight: 900; display:inline-block; margin-top: 6px; }
.three-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; background: rgba(255,255,255,.65); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 20px 55px rgba(4,50,110,.07); overflow: hidden; }
.mini-card { padding: 38px 30px; min-height: 245px; text-align: center; border-right: 1px solid var(--line); display: flex; flex-direction: column; align-items: center; justify-content: center; }
.mini-card:last-child { border-right: 0; }
.icon { width: 80px; height: 80px; border-radius: 50%; display: grid; place-items: center; font-size: 2.6rem; font-weight: 800; margin-bottom: 18px; border: 2px solid currentColor; background: #fff; box-shadow: 0 16px 35px rgba(0,0,0,.08); }
.icon-blue { color: var(--blue); }
.icon-red { color: var(--red); }
.icon-green { color: var(--green); }
.mini-card h3 { text-transform: uppercase; font-size: 1.25rem; color: var(--blue); margin-bottom: 10px; }
.mini-card:nth-child(2) h3 { color: var(--red); }
.mini-card:nth-child(3) h3 { color: var(--green); }
.mini-card p { color: #273342; font-size: 1rem; margin-bottom: 0; }

.split-heading { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 46px; }
.lesson-grid { display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); position: relative; z-index: 1; background: rgba(255,255,255,.84); }
.lesson-grid article { min-height: 182px; padding: 34px 28px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.lesson-grid span { color: var(--blue); font-size: 1.45rem; font-weight: 900; display: block; margin-bottom: 16px; }
.lesson-grid p { margin-bottom: 0; font-size: .97rem; }

.resource-grid { display: grid; grid-template-columns: 1fr; gap: 26px; position: relative; z-index: 1; }
.muted { color: var(--muted); }
.resource-cards { display: grid; grid-template-columns: repeat(5, 1fr); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff; box-shadow: 0 18px 50px rgba(7,43,105,.08); }
.resource-cards article { padding: 30px 20px; text-align: center; border-right: 1px solid var(--line); }
.resource-cards article:last-child { border-right: 0; }
.resource-icon { display: block; color: var(--blue); font-size: 2.2rem; margin-bottom: 12px; }
.resource-cards h3 { font-size: .92rem; margin-bottom: 0; }
.resource-cta { display: flex; justify-content: flex-end; gap: 14px; flex-wrap: wrap; }

.proof-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; position: relative; z-index: 1; }
.quote-card { border: 1px solid var(--line); border-radius: var(--radius); background: rgba(255,255,255,.9); padding: 42px; box-shadow: 0 20px 60px rgba(8,47,118,.08); }
.quote-card blockquote { margin: 0 0 16px; font-size: 1.12rem; line-height: 1.7; color: #162232; position: relative; }
.quote-card blockquote::before { content:"“"; color: var(--blue); font-size: 5rem; line-height: .4; display:block; margin-bottom: 4px; font-weight: 900; }
.quote-source { color: var(--blue); font-weight: 800; }
.stars { color: #ffc400; font-size: 1.5rem; letter-spacing: .12em; margin-top: 22px; }

.author-grid { display: grid; grid-template-columns: 220px 1fr; gap: 42px; align-items: center; max-width: 880px; }
.author-photo { width: 220px; height: 220px; border-radius: 50%; object-fit: cover; box-shadow: var(--shadow); border: 8px solid #fff; }
.author-copy h3 { color: var(--green); font-size: 1.7rem; margin: -12px 0 10px; }
.author-copy p { font-size: 1.07rem; color: #253242; max-width: 760px; }

.final-cta { text-align: center; padding: 74px 0 88px; background: linear-gradient(180deg,#fff,#f8fbff); }
.final-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 250px 1fr; gap: 48px; align-items: center; }
.final-brain { width: 260px; justify-self: center; opacity: .98; }
.final-cta h2 span { color: var(--teal); }
.final-cta p { color: var(--muted); font-size: 1.1rem; }

.signup { background: linear-gradient(90deg, #082f76, #0851ad); color: #fff; padding: 30px 0; }
.signup-grid { display: grid; grid-template-columns: 1fr minmax(300px, 520px); gap: 34px; align-items: center; }
.signup h2 { color: #fff; font-size: 1.55rem; margin-bottom: 4px; letter-spacing: 0; }
.signup p { margin: 0; color: rgba(255,255,255,.82); }
.signup-form { display: grid; grid-template-columns: 1fr 160px; gap: 14px; }
.signup-form input { height: 48px; border-radius: 7px; border: 0; padding: 0 18px; font: inherit; }
.signup-form button { height: 48px; border: 0; border-radius: 7px; background: var(--teal); color: #fff; font-weight: 900; text-transform: uppercase; cursor: pointer; }

.site-footer { background: #0a0d13; color: #fff; padding: 38px 0; }
.footer-grid { display: grid; grid-template-columns: auto 1fr auto; gap: 30px; align-items: center; }
.footer-brand .brand-main { font-size: 1.8rem; }
.footer-brand .brand-sub { font-size: .72rem; }
.site-footer nav { display: flex; gap: 26px; justify-content: center; font-size: .78rem; text-transform: uppercase; font-weight: 800; }
.site-footer a:hover { color: var(--teal); }
.site-footer p { margin: 0; color: rgba(255,255,255,.70); font-size: .85rem; }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: .12s; }

@media (max-width: 1040px) {
  .hero-grid, .thoughts-grid, .final-grid { grid-template-columns: 1fr; }
  .hero { min-height: auto; }
  .book-stage { min-height: 520px; }
  .brain-float { right: -80px; width: 580px; }
  .elephant-hero { right: -140px; width: 225px; top: 270px; }
  .lesson-grid { grid-template-columns: repeat(2, 1fr); }
  .resource-cards { grid-template-columns: repeat(2, 1fr); }
  .resource-cards article { border-bottom: 1px solid var(--line); }
  .proof-grid { grid-template-columns: 1fr; }
}
@media (max-width: 820px) {
  .header-inner { height: 68px; }
  .mobile-toggle { display: block; }
  .main-nav { position: fixed; top: 68px; left: 0; right: 0; display: none; flex-direction: column; align-items: stretch; gap: 0; background: #fff; border-bottom: 1px solid var(--line); padding: 10px 24px 24px; }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 15px 0; border-bottom: 1px solid var(--line); }
  .nav-buy { text-align: center; margin-top: 12px; }
  .container { width: min(100% - 32px, var(--container)); }
  .section { padding: 58px 0; }
  .hero { padding-top: 42px; }
  h1 { font-size: clamp(2.55rem, 12vw, 4.4rem); }
  .book-stage { min-height: 430px; }
  .book-3d { width: min(310px, 76vw); }
  .brain-float { width: 480px; right: -130px; bottom: 20px; opacity: .7; }
  .elephant-hero { display: none; }
  .three-cards { grid-template-columns: 1fr; }
  .mini-card { border-right: 0; border-bottom: 1px solid var(--line); }
  .mini-card:last-child { border-bottom: 0; }
  .split-heading { flex-direction: column; align-items: start; }
  .lesson-grid { grid-template-columns: 1fr; }
  .resource-cards { grid-template-columns: 1fr; }
  .resource-cta { justify-content: flex-start; }
  .author-grid { grid-template-columns: 1fr; text-align: center; }
  .author-photo { justify-self: center; }
  .final-grid { gap: 18px; }
  .final-brain { width: 210px; }
  .signup-grid { grid-template-columns: 1fr; }
  .signup-form { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; text-align: center; }
  .footer-brand { align-items: center; }
  .site-footer nav { flex-wrap: wrap; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .btn:hover { transform: none; }
}