:root {
  --navy: #173450;
  --navy-2: #244763;
  --cream: #f7f2e8;
  --paper: #fbfaf6;
  --terracotta: #d36a50;
  --sage: #a9b99a;
  --pale-blue: #e8f0f3;
  --ink: #26333c;
  --muted: #6b7880;
  --line: #deddd7;
  --white: #ffffff;
  --shadow: 0 24px 60px rgba(23, 52, 80, 0.16);
  --radius: 20px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.55;
}
img { max-width: 100%; display: block; }
a { color: inherit; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 14px clamp(20px, 5vw, 72px);
  background: rgba(251, 250, 246, 0.95);
  border-bottom: 1px solid rgba(23, 52, 80, 0.10);
  backdrop-filter: blur(16px);
}
.brand img { width: 230px; height: auto; }
.nav { display: flex; align-items: center; gap: 26px; font-size: 14px; font-weight: 650; }
.nav a { text-decoration: none; }
.nav a:not(.nav-cta):hover { color: var(--terracotta); }
.nav-cta { background: var(--navy); color: var(--cream); padding: 10px 16px; border-radius: 999px; }
.menu-button { display: none; border: 1px solid var(--line); background: var(--white); border-radius: 10px; padding: 9px 12px; font-weight: 700; }

.hero {
  min-height: 690px;
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  gap: clamp(44px, 7vw, 110px);
  align-items: center;
  padding: clamp(70px, 8vw, 118px) clamp(24px, 7vw, 110px);
  background:
    radial-gradient(circle at 88% 20%, rgba(169,185,154,.27), transparent 28%),
    linear-gradient(135deg, #fbfaf6 0%, #f8f4ec 55%, #edf1ec 100%);
  overflow: hidden;
}
.hero-copy { max-width: 760px; }
.eyebrow { margin: 0 0 14px; letter-spacing: .17em; font-size: 12px; font-weight: 800; color: var(--terracotta); }
.eyebrow.light { color: var(--sage); }
h1, h2, h3, blockquote { font-family: Georgia, "Times New Roman", serif; color: var(--navy); }
h1 { margin: 0; font-size: clamp(58px, 7.2vw, 108px); line-height: .88; letter-spacing: -.045em; }
h1 span { color: var(--terracotta); }
.hero-lede { max-width: 680px; margin: 28px 0 0; font-size: clamp(18px, 1.6vw, 23px); color: #42515b; }
.hero-actions, .book-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.button { display: inline-flex; justify-content: center; align-items: center; min-height: 48px; padding: 12px 20px; border-radius: 999px; text-decoration: none; font-weight: 800; border: 0; cursor: pointer; font-size: 15px; }
.button.primary { background: var(--navy); color: var(--cream); }
.button.primary:hover { background: #0f2a43; }
.button.secondary { border: 1px solid rgba(23,52,80,.24); color: var(--navy); background: rgba(255,255,255,.68); }
.button.secondary[aria-disabled="true"] { opacity: .52; cursor: not-allowed; }
.button.cream { background: var(--cream); color: var(--navy); }
.microcopy { color: var(--muted); font-size: 13px; margin-top: 14px; }

.hero-book { position: relative; justify-self: center; width: min(360px, 72vw); transform: rotate(1.6deg); }
.hero-book img { position: relative; border-radius: 4px; box-shadow: var(--shadow); z-index: 2; }
.book-shadow { position: absolute; inset: 7% -10% -5% 10%; background: rgba(23,52,80,.18); filter: blur(28px); transform: rotate(-4deg); z-index: 0; }

.trust-strip { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--white); padding: 0 clamp(20px, 5vw, 72px); }
.trust-strip div { padding: 26px 20px; border-right: 1px solid var(--line); }
.trust-strip div:last-child { border-right: 0; }
.trust-strip strong { display: block; color: var(--navy); margin-bottom: 4px; }
.trust-strip span { display: block; font-size: 14px; line-height: 1.45; color: var(--muted); }

.section { padding: clamp(74px, 8vw, 120px) clamp(24px, 7vw, 110px); }
.section-heading.narrow { max-width: 820px; }
h2 { margin: 0 0 18px; font-size: clamp(40px, 5vw, 68px); line-height: 1.02; letter-spacing: -.025em; }
.section-heading p:last-child { font-size: 19px; color: #4c5a63; }

.three-up { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 44px; }
.card { padding: 30px; border-radius: var(--radius); background: var(--white); border: 1px solid rgba(23,52,80,.08); box-shadow: 0 10px 28px rgba(23,52,80,.06); }
.card-number { display: inline-block; color: var(--terracotta); font-weight: 900; letter-spacing: .08em; margin-bottom: 20px; }
.card h3 { font-size: 28px; line-height: 1.08; margin: 0 0 14px; }
.card p { margin: 0; color: #59666f; font-size: 16px; line-height: 1.6; }

.book-section { display: grid; grid-template-columns: .72fr 1.28fr; gap: clamp(48px, 8vw, 120px); align-items: center; background: var(--navy); color: var(--cream); }
.book-section h2 { color: var(--cream); }
.book-image-wrap { width: min(355px, 72vw); justify-self: center; }
.book-image-wrap img { box-shadow: 0 28px 70px rgba(0,0,0,.34); }
.book-deck { font-size: 21px; color: #e5e9e4; max-width: 760px; }
.feature-list { list-style: none; padding: 0; margin: 28px 0 0; display: grid; gap: 18px; }
.feature-list li { position: relative; padding-left: 28px; }
.feature-list li::before { content: ""; width: 9px; height: 9px; border-radius: 50%; background: var(--terracotta); position: absolute; left: 0; top: .55em; }
.feature-list strong { display: block; color: var(--cream); }
.feature-list span { display: block; color: #cfd9d4; }
.book-section .button.primary { background: var(--terracotta); color: #fff; }
.book-section .button.secondary { color: var(--cream); border-color: rgba(247,242,232,.35); background: transparent; }

.availability-note { display: block; flex-basis: 100%; min-height: 0; color: #cfd9d4; font-size: 13px; line-height: 1.4; padding-left: 0; margin-top: 2px; }

.principle-band { padding: 64px clamp(24px, 7vw, 110px); text-align: center; background: #d9e2d1; color: var(--navy); border-top: 1px solid rgba(23,52,80,.08); border-bottom: 1px solid rgba(23,52,80,.08); }
.principle-band .eyebrow { margin-bottom: 12px; }
.principle-band h2 { max-width: 980px; margin: 0 auto 12px; font-size: clamp(36px, 4.2vw, 60px); line-height: 1.03; }
.principle-band p:last-child { max-width: 760px; margin: 0 auto; font-size: 18px; color: #3f5665; }

.signup-section { display: grid; grid-template-columns: .92fr 1.08fr; gap: clamp(48px, 7vw, 92px); align-items: center; background: #f4f0e8; }
.kit-preview { position: relative; width: min(480px, 82vw); justify-self: center; }
.kit-preview img { position: relative; z-index: 2; border-radius: 10px; box-shadow: var(--shadow); }
.preview-card { position: absolute; inset: 24px -24px -24px 24px; border-radius: 12px; background: var(--pale-blue); border: 1px solid rgba(23,52,80,.10); transform: rotate(2deg); }
.signup-copy { max-width: 760px; }
.signup-lede { font-size: 20px; line-height: 1.55; color: #4e5c65; }
.check-list { padding: 0; list-style: none; display: grid; gap: 16px; margin: 28px 0 30px; }
.check-list li { padding-left: 34px; position: relative; font-size: 17px; line-height: 1.5; }
.check-list li::before { content: "✓"; position: absolute; left: 0; top: 1px; color: var(--terracotta); font-weight: 900; font-size: 18px; }
.signup-card { margin-top: 8px; padding: 22px; border-radius: 18px; background: var(--white); border: 1px solid rgba(23,52,80,.10); box-shadow: 0 10px 28px rgba(23,52,80,.05); }
.signup-form label { display: block; margin-bottom: 10px; font-weight: 800; font-size: 16px; color: var(--navy); }
.input-row { display: grid; grid-template-columns: 1fr auto; gap: 10px; }
.input-row input { min-width: 0; border: 1px solid #bcc5c8; border-radius: 999px; background: var(--white); padding: 13px 18px; font-size: 16px; outline: 0; }
.input-row input:focus { border-color: var(--navy); box-shadow: 0 0 0 3px rgba(23,52,80,.10); }
.form-note { color: var(--muted); font-size: 12px; line-height: 1.5; }
.form-status { min-height: 24px; font-weight: 700; color: var(--navy); }

.fit-section { background: var(--white); padding-top: clamp(78px, 7vw, 100px); padding-bottom: clamp(70px, 6vw, 90px); }
.fit-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 38px; }
.fit-item { display: flex; gap: 14px; align-items: flex-start; padding: 18px 20px; border: 1px solid var(--line); border-radius: 14px; background: var(--paper); }
.fit-item span { display: inline-grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; background: var(--sage); color: var(--navy); font-weight: 900; flex: 0 0 auto; }
.fit-item p { margin: 1px 0 0; font-size: 16px; line-height: 1.5; }

.closing-cta { margin: 0; padding: 64px clamp(24px, 7vw, 110px); display: flex; align-items: center; justify-content: space-between; gap: 28px; background: var(--navy); color: var(--cream); }
.closing-cta h2 { color: var(--cream); margin-bottom: 8px; }
.closing-cta p { margin: 0; }

footer { display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: end; padding: 44px clamp(24px, 7vw, 110px); border-top: 1px solid var(--line); background: var(--paper); }
.footer-brand img { width: 250px; }
.footer-brand p { margin: 8px 0 0; color: var(--muted); }
.footer-links { display: flex; gap: 18px; font-size: 13px; font-weight: 800; }
.footer-links a { text-decoration: none; }
.copyright { grid-column: 1 / -1; margin: 10px 0 0; color: var(--muted); font-size: 12px; }

@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; text-align: center; }
  .hero-copy { margin: 0 auto; }
  .hero-actions { justify-content: center; }
  .hero-book { width: min(330px, 70vw); }
  .trust-strip { grid-template-columns: repeat(2, 1fr); }
  .trust-strip div:nth-child(2) { border-right: 0; }
  .three-up { grid-template-columns: 1fr; }
  .book-section, .signup-section { grid-template-columns: 1fr; }
  .book-copy { text-align: left; }
}

@media (max-width: 760px) {
  .site-header { padding: 10px 16px; }
  .brand img { width: 188px; }
  .menu-button { display: inline-block; }
  .nav { display: none; position: absolute; top: 62px; right: 16px; left: 16px; flex-direction: column; align-items: stretch; gap: 4px; padding: 12px; background: var(--white); border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow); }
  .nav.open { display: flex; }
  .nav a { padding: 10px 12px; }
  .hero { padding: 62px 22px; min-height: auto; }
  h1 { font-size: clamp(54px, 17vw, 78px); }
  .hero-lede { font-size: 18px; }
    .trust-strip { grid-template-columns: 1fr; }
  .trust-strip div { border-right: 0; border-bottom: 1px solid var(--line); }
  .trust-strip div:last-child { border-bottom: 0; }
  .section { padding: 70px 22px; }
  h2 { font-size: 42px; }
  .principle-band { padding: 52px 22px; }
  .principle-band h2 { font-size: 38px; }
  .principle-band p:last-child { font-size: 17px; }
  .fit-grid { grid-template-columns: 1fr; }
  .input-row { grid-template-columns: 1fr; }
  .input-row .button { width: 100%; }
  .closing-cta { flex-direction: column; align-items: flex-start; padding: 54px 22px; }
  footer { grid-template-columns: 1fr; align-items: start; padding: 38px 22px; }
  .footer-links { flex-wrap: wrap; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}