.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 clamp(1rem, 5vw, 3rem);
}

.container-narrow {
  max-width: 820px;
}

.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background: rgba(253, 248, 242, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--accent-light);
  height: 72px;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 1.5rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

section {
  padding-block: clamp(4rem, 8vw, 7rem);
}

.hero {
  padding-top: 140px;
  padding-bottom: clamp(3rem, 6vw, 5rem);
  text-align: center;
}

#personalizar {
  padding-top: calc(72px + clamp(3rem, 6vw, 5rem));
}

.personalizar-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.form-col {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.canvas-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.books-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.testimonios-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.split-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

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

.divider {
  display: block;
  width: 100%;
  height: 60px;
  margin: 0;
}

.divider path {
  fill: var(--accent-light);
}

.site-footer {
  border-top: 1px solid var(--accent-light);
  background: var(--surface);
  padding-block: 3rem 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
  margin-bottom: 2rem;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-bar {
  text-align: center;
  border-top: 1px solid var(--accent-light);
  padding-top: 1.5rem;
  font-size: 0.85rem;
  color: rgba(44, 31, 20, 0.55);
}

.genero-row {
  display: flex;
  gap: 0.8rem;
}

.cta-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 480px;
  margin: 0 auto;
}

.cta-final {
  background: var(--accent-light);
  text-align: center;
}

@media (max-width: 900px) {
  .nav-links {
    display: none;
  }

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

  /* En mobile: form primero, preview de portada después */
  .form-col { order: 1; }
  .canvas-col { order: 2; }

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

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

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

  .split-section {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

@media (max-width: 500px) {
  .steps-grid,
  .books-grid {
    grid-template-columns: 1fr;
  }

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