:root {
  --bg: #0a0a0f;
  --panel: #12121b;
  --panel-2: #181827;
  --text: #f8fafc;
  --muted: #a1a1aa;
  --line: rgba(255,255,255,.1);
  --primary: #6366f1;
  --primary-2: #818cf8;
  --accent: #f59e0b;
  --success: #22c55e;
  --danger: #fb7185;
  --radius: 8px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px clamp(18px, 4vw, 56px);
  border-bottom: 1px solid var(--line);
  background: rgba(10,10,15,.84);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  letter-spacing: 0;
}

.brand span {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: var(--radius);
  background: var(--primary);
  color: white;
}

.nav {
  display: none;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.nav a:hover { color: var(--text); }

.header-cta,
.primary-button,
.secondary-button,
.ghost-button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  border: 1px solid transparent;
  padding: 0 18px;
  font-weight: 800;
  transition: transform .2s ease, border-color .2s ease, background .2s ease;
}

.header-cta,
.primary-button {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 18px 50px rgba(99,102,241,.3);
}

.secondary-button,
.ghost-button {
  border-color: var(--line);
  background: rgba(255,255,255,.04);
  color: var(--text);
}

.header-cta:hover,
.primary-button:hover,
.secondary-button:hover,
.ghost-button:hover { transform: translateY(-1px); }

.hero {
  display: grid;
  gap: 44px;
  min-height: calc(100vh - 76px);
  align-items: center;
  padding: 64px clamp(18px, 5vw, 72px) 38px;
  background:
    radial-gradient(circle at 80% 20%, rgba(99,102,241,.24), transparent 34%),
    radial-gradient(circle at 10% 70%, rgba(245,158,11,.16), transparent 30%),
    var(--bg);
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .12em;
  text-transform: uppercase;
}

h1, h2, h3 {
  margin: 0;
  letter-spacing: 0;
}

h1, .section-heading h2, .pricing-strip h2 {
  font-family: "Playfair Display", Georgia, serif;
}

.hero h1 {
  max-width: 840px;
  margin-top: 14px;
  font-size: clamp(48px, 11vw, 104px);
  line-height: .9;
}

.hero-text {
  max-width: 700px;
  margin: 24px 0 0;
  color: #d4d4d8;
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.quick-ebook-form {
  display: grid;
  gap: 12px;
  max-width: 720px;
  margin-top: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
  background: rgba(255,255,255,.06);
  box-shadow: 0 24px 70px rgba(0,0,0,.2);
}

.quick-ebook-form label {
  display: block;
  margin-bottom: 7px;
  color: #e4e4e7;
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .08em;
}

.quick-ebook-form input,
.quick-ebook-form select {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(10,10,15,.86);
  color: #fff;
  outline: none;
  padding: 0 12px;
}

.quick-ebook-form input:focus,
.quick-ebook-form select:focus {
  border-color: var(--primary-2);
  box-shadow: 0 0 0 3px rgba(99,102,241,.2);
}

.quick-grid {
  display: grid;
  gap: 10px;
}

.quick-ebook-form button {
  min-height: 50px;
  border: 0;
  border-radius: var(--radius);
  background: var(--accent);
  color: #111827;
  font-weight: 900;
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.trust-row span {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 9px 12px;
  color: #d4d4d8;
  font-size: 13px;
  font-weight: 800;
}

.hero-product {
  display: grid;
  gap: 18px;
  align-items: stretch;
}

.book-cover {
  min-height: 520px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border: 1px solid rgba(255,255,255,.16);
  border-radius: var(--radius);
  padding: 32px;
  background:
    linear-gradient(150deg, rgba(99,102,241,.88), rgba(10,10,15,.78)),
    radial-gradient(circle at 65% 25%, rgba(245,158,11,.8), transparent 26%);
  box-shadow: 0 40px 100px rgba(0,0,0,.36);
}

.book-cover strong {
  font-family: "Playfair Display", Georgia, serif;
  font-size: clamp(42px, 8vw, 74px);
  line-height: .92;
}

.book-cover small {
  max-width: 320px;
  color: #fff7ed;
  font-size: 18px;
  line-height: 1.5;
}

.book-cover em { color: #fef3c7; font-style: normal; font-weight: 800; }
.cover-kicker { color: #fef3c7; font-size: 13px; font-weight: 900; text-transform: uppercase; letter-spacing: .12em; }

.process-card,
.metrics,
.feature-grid article,
.pricing-strip,
.price-cards article,
.footer {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255,255,255,.04);
}

.process-card { padding: 18px; }

.process-step {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 0;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
}

.process-step:last-child { border-bottom: 0; }
.process-step.active { color: var(--text); }
.process-step b { display: grid; width: 30px; height: 30px; place-items: center; border-radius: var(--radius); background: var(--primary); }

.section { margin: 0 clamp(18px, 5vw, 72px) 72px; }

.metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  overflow: hidden;
}

.metrics div { padding: 24px; background: rgba(10,10,15,.58); }
.metrics strong { display: block; color: var(--accent); font-size: 34px; font-weight: 900; }
.metrics span { color: var(--muted); font-size: 14px; font-weight: 700; }

.section-heading {
  display: grid;
  gap: 12px;
  margin-bottom: 24px;
}

.section-heading h2,
.pricing-strip h2 {
  max-width: 760px;
  font-size: clamp(36px, 6vw, 68px);
  line-height: .95;
}

.feature-grid {
  display: grid;
  gap: 14px;
}

.feature-grid article { padding: 24px; }
.feature-grid span { font-size: 30px; }
.feature-grid h3 { margin-top: 18px; font-size: 22px; }
.feature-grid p { color: var(--muted); line-height: 1.7; }

.pricing-strip {
  display: grid;
  gap: 24px;
  padding: clamp(24px, 5vw, 42px);
}

.price-cards {
  display: grid;
  gap: 14px;
}

.price-cards article { padding: 22px; background: rgba(10,10,15,.7); }
.price-cards .featured { border-color: rgba(99,102,241,.8); box-shadow: inset 0 0 0 1px rgba(99,102,241,.5); }
.price-cards strong { display: block; margin-top: 12px; color: var(--accent); font-size: 30px; }
.price-cards p { color: var(--muted); }

.footer {
  display: flex;
  justify-content: space-between;
  margin: 0 clamp(18px, 5vw, 72px) 24px;
  padding: 20px;
  color: var(--muted);
}

.hidden { display: none !important; }

@media (min-width: 820px) {
  .nav { display: flex; }
  .hero { grid-template-columns: 1.1fr .9fr; }
  .quick-grid { grid-template-columns: repeat(3, 1fr); }
  .feature-grid { grid-template-columns: repeat(3, 1fr); }
  .metrics { grid-template-columns: repeat(4, 1fr); }
  .price-cards { grid-template-columns: repeat(3, 1fr); }
}