.page-index {
  background-color: #f7f4ee;
  color: #222523;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  text-align: center;
}

.hero-wrapper {
  padding: 2rem;
  max-width: 900px;
  width: 100%;
}

.hero-title {
  font-size: clamp(4rem, 12vw, 9rem);
  letter-spacing: -0.02em;
  color: #2c4a3e;
  margin: 1rem 0;
  transition: transform 0.6s ease;
}

.subtitle-line {
  font-size: clamp(0.9rem, 2vw, 1.2rem);
  color: var(--text-muted);
  letter-spacing: 0.15em;
  opacity: 0;
  transform: translateY(15px);
  transition: all 0.8s var(--transition-smooth);
  margin-bottom: 0.5rem;
}

.subtitle-line.bold-line {
  color: var(--text-main);
  font-weight: 500;
}

.subtitle-line.show {
  opacity: 1;
  transform: translateY(0);
}

.author-credits {
  margin-top: 3rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  opacity: 0;
  transition: opacity 1s ease;
}

.author-credits.show {
  opacity: 1;
}

.by-line {
  color: var(--accent-gold);
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1rem;
}

.open-action {
  margin-top: 3.5rem;
  opacity: 0;
  transform: scale(0.9);
  transition: all 0.8s var(--transition-smooth);
}

.open-action.show {
  opacity: 1;
  transform: scale(1);
}

.btn-open {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  padding: 1.2rem 2.8rem;
  border-radius: 50px;
  background-color: #2c4a3e;
  color: #f7f4ee;
  text-decoration: none;
  font-size: 0.9rem;
  letter-spacing: 0.2em;
  transition: all 0.4s var(--transition-smooth);
}

.btn-open:hover {
  background-color: #222523;
  transform: translateY(-3px);
  box-shadow: 0 15px 35px rgba(44, 74, 62, 0.25);
}