:root {
  /* Modern neutral palette with subtle blue accent */
  --bg: #0f172a;            /* slate-900 */
  --surface: #111827;       /* gray-900 */
  --surface-alt: #0b1224;   /* deeper slate */
  --text: #f9fafb; /* brighter white */          /* gray-200 */
  --muted: #d1d5db; /* lighter gray for readability */         /* gray-400 */
  --accent: #3b82f6;        /* blue-500 */
  --accent-dark: #2563eb;   /* blue-600 */
  --border: #1f2937;        /* gray-800 */
  --shadow: 0 20px 40px rgba(0,0,0,0.45);
  --max: 1140px;
  --radius: 16px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(var(--max), calc(100% - 2rem));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 23, 42, 0.95); /* darker header */
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
  gap: 1rem;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.02em;
  font-size: 1.05rem;
  color: #ffffff; /* strong contrast */
}

.nav-links {
  display: flex;
  gap: 1.25rem;
  align-items: center;
  color: #e5e7eb; /* brighter nav text */
  font-size: 0.95rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.9rem 1.25rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 700;
  transition: 0.2s ease;
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  color: #fff;
  box-shadow: 0 10px 25px rgba(37, 99, 235, 0.35);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  transform: translateY(-1px) scale(1.02);
}

.btn-secondary {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}

.btn-secondary:hover {
  background: #fff;
}

.hero {
  padding: 4.5rem 0 3rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 2rem;
  align-items: center;
}

.eyebrow {
  display: inline-block;
  padding: 0.4rem 0.8rem;
  border-radius: 999px;
  background: var(--surface-alt);
  color: var(--accent);
  font-weight: 700;
  font-size: 0.85rem;
  margin-bottom: 1rem;
}

h1,
h2,
h3 {
  line-height: 1.15;
  margin: 0 0 1rem;
}

h1 {
  font-size: clamp(2.2rem, 4vw, 4.4rem);
  letter-spacing: -0.03em;
}

h2 {
  font-size: clamp(1.7rem, 3vw, 2.7rem);
  letter-spacing: -0.02em;
}

h3 {
  font-size: 1.2rem;
}

.hero p,
.section p,
.feature-card p,
.faq details,
.product-card p {
  color: var(--muted);
  font-size: 1.05rem;
}

.hero h1,
.hero h2,
.product-card h3,
.feature-card h3 {
  color: var(--text);
}

.price-box {
  background: #e5e7eb; /* light background */
  border: 1px solid #cbd5e1;
  color: #111827; /* DARK text */
  border-radius: 16px;
  padding: 1.25rem;
  margin-top: 1rem;
}

.price-box .price {
  color: #111827;
}

.price-box div {
  color: #374151;
}

.hero-copy {
  max-width: 660px;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.5rem;
}

.mini-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.25rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.hero-card {
  background: linear-gradient(180deg, #111827 0%, #0b1224 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
}

.book-cover {
  border-radius: 14px;
  background: linear-gradient(135deg, #1e3a8a 0%, #0f172a 100%);
  color: #e5e7eb;
  padding: 2rem;
  min-height: 420px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border: 1px solid #1f2937;
}

.book-top {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  opacity: 0.9;
}

.book-title {
  font-size: clamp(1.8rem, 2.7vw, 2.8rem);
  font-weight: 700;
  line-height: 1.05;
  margin: 1rem 0;
}

.book-subtitle {
  font-size: 1rem;
  line-height: 1.45;
  color: #e5e7eb;
  max-width: 26ch;
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.25rem;
}

.pill {
  background: rgba(255,255,255,0.13);
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 999px;
  padding: 0.5rem 0.8rem;
  font-size: 0.9rem;
}

.section {
  padding: 4rem 0;
}

.section-header {
  max-width: 720px;
  margin-bottom: 2rem;
}

.grid-4,
.grid-3,
.grid-2 {
  display: grid;
  gap: 1.25rem;
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.feature-card,
.product-card,
.quote-card,
.faq,
.bio-card {
  background: rgba(17, 24, 39, 0.7);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem;
  box-shadow: var(--shadow);
  backdrop-filter: blur(6px);
}

.feature-number {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: inline-grid;
  place-items: center;
  background: var(--surface-alt);
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 1rem;
}

.product-wrap {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 1.5rem;
  align-items: start;
}

.checklist {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
  display: grid;
  gap: 0.85rem;
}

.checklist li {
  position: relative;
  padding-left: 1.6rem;
  color: var(--muted);
}

.checklist li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--accent);
  font-weight: 700;
}

.price-box {
  background: #fff7f1;
  border: 1px solid #ecd6c7;
  border-radius: 16px;
  padding: 1.25rem;
  margin-top: 1rem;
}

.price {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 0.35rem;
}

.quote-card {
  font-size: 1.05rem;
}

.quote-card strong {
  display: block;
  margin-top: 1rem;
  color: var(--text);
}

.faq details {
  border-top: 1px solid var(--border);
  padding: 1rem 0;
}

.faq details:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.faq summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.cta-band {
  background: linear-gradient(135deg, #1d4ed8 0%, #020617 100%);
  color: #e5e7eb;
  border-radius: 24px;
  padding: 2.2rem;
  box-shadow: var(--shadow);
  border: 1px solid #1f2937;
}

.cta-band p {
  color: rgba(255,255,255,0.86);
}

footer {
  padding: 2rem 0 3rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  border-top: 1px solid var(--border);
  padding-top: 1.25rem;
}

@media (max-width: 960px) {
  .hero-grid,
  .product-wrap,
  .grid-4,
  .grid-3,
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .nav-links {
    display: none;
  }

  .hero {
    padding-top: 3rem;
  }
}


/* Leadership framework image section */

.leadership-framework {
  padding-top: 1rem;
}

.framework-header {
  text-align: center;
  margin-inline: auto;
}

.framework-image-wrap {
  margin-top: 2rem;
  background: linear-gradient(
    180deg,
    rgba(17, 24, 39, 0.9),
    rgba(11, 18, 36, 0.95)
  );
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 2rem;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.framework-image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 16px;
}


/* Video Section */

/* Video Section */

.video-section {
  padding-top: 1rem;
}

.video-header {
  text-align: center;
  margin-inline: auto;
}

.video-wrap {
  width: 100%;
  max-width: 1140px;
  margin: 2rem auto 0;
  aspect-ratio: 16 / 9;
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  background: rgba(17, 24, 39, 0.9);
}

.video-wrap iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}