@media (max-width: 1100px) {
  .header-inner {
    grid-template-columns: 1fr;
  }

  .header-actions {
    justify-content: flex-start;
  }

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

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

@media (max-width: 780px) {
  .books-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .hero-card h2 {
    font-size: 1.4rem;
  }
}

@media (max-width: 520px) {
  .books-grid {
    grid-template-columns: 1fr;
  }

  .container {
    width: min(100% - 20px, var(--container));
  }

  .brand-text h1 {
    font-size: 1rem;
  }
}