/* Hero */
.hero {
  position: relative;
  min-height: calc(100vh - var(--header-h));
  display: grid;
  align-items: center;
  background:
    radial-gradient(ellipse at 75% 40%, rgba(196, 163, 90, 0.12), transparent 50%),
    linear-gradient(165deg, var(--color-night) 0%, var(--color-primary) 55%, var(--color-primary-deep) 100%);
  color: var(--color-white);
  overflow: hidden;
  padding: 4rem 0 5rem;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 8%;
  border: 1px solid color-mix(in srgb, var(--color-accent) 18%, transparent);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.9fr);
  gap: 3.5rem;
  align-items: center;
}

.hero h1 {
  font-size: var(--fs-hero);
  color: var(--color-white);
  margin: 0 0 0.75rem;
}

.hero-sub {
  font-family: var(--font-subtitle);
  font-size: clamp(1rem, 1.6vw, 1.2rem);
  color: color-mix(in srgb, var(--color-white) 88%, transparent);
  max-width: 28rem;
  margin-bottom: 1rem;
}

.hero-support {
  max-width: 32rem;
  color: color-mix(in srgb, var(--color-white) 78%, transparent);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.75rem 0 1.1rem;
}

.book-stage {
  perspective: 1400px;
  display: grid;
  place-items: center;
}

.book-3d {
  width: min(100%, 22rem);
  transform: rotateY(-9deg) rotateX(3deg);
  transform-style: preserve-3d;
  filter: drop-shadow(0 28px 50px rgba(0, 0, 0, 0.45));
  animation: book-float 8s var(--ease) infinite;
}

.book-3d img {
  width: 100%;
  border-radius: 2px;
  box-shadow: var(--shadow-book);
}

@keyframes book-float {
  0%,
  100% {
    transform: rotateY(-9deg) rotateX(3deg) translateY(0);
  }
  50% {
    transform: rotateY(-7deg) rotateX(2deg) translateY(-8px);
  }
}

/* Journey cards */
.cards-8 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.card {
  background: var(--color-paper);
  border: 1px solid var(--color-rule);
  padding: 1.35rem 1.2rem 1.4rem;
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease);
}

.card:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--color-accent) 45%, var(--color-rule));
}

.card h3 {
  font-size: 1.05rem;
  margin-bottom: 0.4rem;
}

.card p {
  font-size: 0.92rem;
  color: var(--color-text-muted);
}

/* Chapters */
.chapters {
  display: grid;
  gap: 1rem;
}

.chapter {
  display: grid;
  grid-template-columns: 4.5rem 1fr;
  gap: 1.25rem;
  padding: 1.5rem 1.4rem;
  background: var(--color-paper);
  border-left: 2px solid var(--color-accent);
}

.chapter-num {
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--color-accent);
}

/* Resources */
.resources {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.15rem;
}

.resource {
  padding: 1.6rem 1.35rem;
  background: var(--color-paper);
  border-top: 2px solid var(--color-primary);
}

.resource h3 {
  font-size: 1.1rem;
}

/* Interior mosaic */
.mosaic {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.9rem;
}

.mosaic figure {
  margin: 0;
  background: var(--color-paper);
  padding: 0.55rem;
  box-shadow: 0 16px 40px rgba(27, 42, 74, 0.08);
}

.mosaic img {
  width: 100%;
  object-fit: cover;
}

.mosaic figcaption {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding: 0.55rem 0.2rem 0.2rem;
}

.mosaic__hero {
  grid-column: span 2;
  grid-row: span 2;
}

.mosaic__hero img {
  aspect-ratio: 3 / 4.2;
}

.mosaic figure:not(.mosaic__hero) img {
  aspect-ratio: 3 / 2.4;
  object-position: top;
}

/* Verse cinematic */
.verse {
  background: var(--color-night);
  color: var(--color-white);
  text-align: center;
  padding: 7rem 1.25rem;
}

.verse blockquote {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.2vw, 2.35rem);
  font-weight: 500;
  font-style: italic;
  line-height: 1.4;
  max-width: 38rem;
  margin: 0 auto 1.5rem;
  color: var(--color-white);
}

.verse cite {
  font-style: normal;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-size: 0.75rem;
  color: var(--color-accent);
}

/* Audience */
.audience {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

/* Steps */
.steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem;
  counter-reset: step;
}

.step {
  padding: 1.4rem 1rem 1.5rem;
  text-align: center;
  border-top: 1px solid var(--color-accent);
}

.step h3 {
  font-size: 1.2rem;
}

.step p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* Author */
.author {
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  gap: 3rem;
  align-items: center;
}

.author-mark {
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  background: var(--color-primary);
  color: var(--color-white);
  text-align: center;
  padding: 2rem;
}

.author-mark span {
  font-family: var(--font-display);
  font-size: 3rem;
  color: var(--color-accent);
}

.author-mark p {
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 0.72rem;
  margin-top: 0.75rem;
}

.letter {
  font-family: var(--font-subtitle);
  font-size: 1.05rem;
}

.sign {
  font-family: var(--font-display);
  font-style: italic;
  margin-top: 1.25rem;
}

/* Offer */
.offer {
  background:
    linear-gradient(180deg, var(--color-primary-deep), var(--color-primary));
  color: var(--color-white);
  text-align: center;
}

.offer h2 {
  color: var(--color-white);
  font-size: var(--fs-h2);
}

.offer .lead {
  margin-inline: auto;
  color: color-mix(in srgb, var(--color-white) 80%, transparent);
}

.offer .cta {
  margin-top: 1.75rem;
}

.offer .note {
  margin-top: 1rem;
  font-size: 0.82rem;
  color: color-mix(in srgb, var(--color-white) 65%, transparent);
}

/* FAQ */
.faq details {
  border-bottom: 1px solid var(--color-rule);
  padding: 1.1rem 0;
}

.faq summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--color-primary);
  list-style: none;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq details p {
  margin-top: 0.65rem;
  color: var(--color-text-muted);
}

@media (max-width: 1024px) {
  .cards-8,
  .resources,
  .audience {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .mosaic {
    grid-template-columns: 1fr 1fr;
  }

  .mosaic__hero {
    grid-row: auto;
    grid-column: 1 / -1;
  }

  .mosaic__hero img {
    aspect-ratio: 3 / 2.2;
    object-position: top;
  }
}

@media (max-width: 768px) {
  .hero {
    padding: 2.5rem 0 3.5rem;
    min-height: auto;
  }

  .hero-grid,
  .author {
    grid-template-columns: 1fr;
  }

  .book-3d {
    width: min(70%, 16rem);
    margin-inline: auto;
  }

  .hero::before {
    inset: 0.75rem;
  }

  .cards-8,
  .resources,
  .audience,
  .steps,
  .mosaic {
    grid-template-columns: 1fr;
  }

  .chapter {
    grid-template-columns: 3rem 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .book-3d {
    animation: none;
    transform: none;
  }

  .card:hover {
    transform: none;
  }
}