:root {
  --red: #c8100e;
  --red-dark: #8b0000;
  --red-glow: rgba(200, 16, 14, 0.18);
  --bg: #0b0b0b;
  --surface: #131313;
  --surface-2: #1a1a1a;
  --border: #282828;
  --text: #f0ede8;
  --muted: #8b8b8b;
  --gold: #c9a84c;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
img { display: block; max-width: 100%; }

.site-nav {
  position: sticky;
  top: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 18px 48px;
  border-bottom: 1px solid var(--border);
  background: rgba(11, 11, 11, 0.92);
  backdrop-filter: blur(16px);
}
.nav-brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.nav-logo { width: 36px; height: 36px; border-radius: 8px; object-fit: cover; background: #fff; }
.nav-wordmark { font: 20px/1 'Bebas Neue', sans-serif; letter-spacing: 4px; }
.nav-links { display: flex; align-items: center; gap: 28px; list-style: none; }
.nav-links a {
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.6px;
  text-decoration: none;
  text-transform: uppercase;
  transition: color 0.2s;
}
.nav-links a:hover, .nav-links a:focus-visible, .nav-links a.active { color: var(--text); }
.nav-links a.active { color: var(--red); }
.nav-links .nav-youtube { color: var(--red); }

main { overflow: hidden; }
.hero {
  position: relative;
  min-height: 690px;
  display: grid;
  place-items: center;
  padding: 90px 48px;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 45%, var(--red-glow), transparent 34%),
    linear-gradient(135deg, rgba(255,255,255,0.025), transparent 45%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  width: min(1120px, 100%);
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  align-items: center;
  gap: clamp(48px, 8vw, 110px);
}
.eyebrow {
  margin-bottom: 18px;
  color: var(--red);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 3px;
  text-transform: uppercase;
}
.hero h1 {
  max-width: 760px;
  font: clamp(62px, 8vw, 108px)/0.88 'Bebas Neue', sans-serif;
  letter-spacing: 2px;
}
.hero h1 span { color: var(--red); }
.hero-subtitle {
  max-width: 680px;
  margin-top: 26px;
  color: var(--muted);
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.65;
}
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 13px 22px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-2);
  color: var(--text);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.7px;
  text-decoration: none;
  transition: transform 0.2s, border-color 0.2s, background 0.2s;
}
.button:hover { transform: translateY(-2px); border-color: #555; }
.button.primary { border-color: var(--red); background: var(--red); }
.button.primary:hover { background: var(--red-dark); }
.product-visual { position: relative; display: grid; place-items: center; }
.product-visual::before {
  content: '';
  position: absolute;
  width: 85%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--red-glow);
  filter: blur(36px);
}
.book-cover {
  position: relative;
  width: min(360px, 78vw);
  border-radius: 4px;
  box-shadow: 0 32px 80px rgba(0,0,0,0.65);
  transform: rotate(2deg);
}
.phone-frame {
  position: relative;
  width: min(300px, 70vw);
  padding: 12px;
  border: 1px solid #3c3c3c;
  border-radius: 40px;
  background: #050505;
  box-shadow: 0 35px 90px rgba(0,0,0,0.7);
}
.phone-frame img { width: 100%; border-radius: 30px; }

.content-section { padding: 96px 48px; border-top: 1px solid var(--border); }
.content-section.alt { background: var(--surface); }
.content-inner { width: min(1050px, 100%); margin: 0 auto; }
.section-heading { max-width: 760px; }
.section-heading h2 { font: clamp(42px, 6vw, 70px)/1 'Bebas Neue', sans-serif; letter-spacing: 2px; }
.section-heading p { margin-top: 18px; color: var(--muted); font-size: 17px; line-height: 1.75; }
.story-copy { display: grid; gap: 18px; max-width: 820px; margin-top: 34px; }
.story-copy p { color: #b8b5b0; font-size: 16px; line-height: 1.8; }
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 42px;
}
.feature-card { padding: 26px; border: 1px solid var(--border); border-radius: 12px; background: var(--surface-2); }
.feature-number { color: var(--red); font: 36px/1 'Bebas Neue', sans-serif; letter-spacing: 1px; }
.feature-card h3 { margin-top: 18px; font-size: 16px; }
.feature-card p { margin-top: 10px; color: var(--muted); font-size: 14px; line-height: 1.65; }
.store-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.store-button svg { width: 22px; height: 22px; margin-right: 10px; fill: currentColor; }

.final-cta { text-align: center; }
.final-cta .section-heading { margin: 0 auto; }
.final-cta .actions { justify-content: center; }

footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 42px 48px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 12px;
}
.footer-brand { margin-bottom: 6px; color: var(--text); font: 19px/1 'Bebas Neue', sans-serif; letter-spacing: 3px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 20px; list-style: none; }
.footer-links a { color: var(--muted); text-decoration: none; }
.footer-links a:hover { color: var(--text); }

@media (max-width: 900px) {
  .site-nav { padding: 16px 24px; }
  .nav-links { gap: 18px; }
  .nav-links li:nth-child(5), .nav-links li:nth-child(6) { display: none; }
  .hero { padding: 72px 24px; }
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-subtitle { margin-left: auto; margin-right: auto; }
  .actions, .store-actions { justify-content: center; }
  .product-visual { order: -1; }
  .book-cover { width: min(270px, 68vw); }
  .phone-frame { width: min(260px, 64vw); }
  .content-section { padding: 72px 24px; }
  .feature-grid { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .site-nav { align-items: flex-start; }
  .nav-wordmark { display: none; }
  .nav-links { gap: 14px; flex-wrap: wrap; justify-content: flex-end; }
  .nav-links li:nth-child(4) { display: none; }
  .hero { min-height: auto; padding-top: 58px; }
  .hero h1 { font-size: clamp(54px, 18vw, 78px); }
  .button { width: 100%; }
  footer { align-items: flex-start; flex-direction: column; padding: 36px 24px; }
}