/* ==========================================================================
   RESPONSIVE MEDIA QUERIES & MOBILE NAVIGATION STYLES
   ========================================================================== */

@media (max-width: 900px) {
  .hero-section {
    grid-template-columns: 1fr;
    gap: 2rem;
    text-align: center;
  }

  .hero-avatar-wrapper {
    display: flex;
    justify-content: center;
  }

  .hero-avatar {
    width: 180px;
    height: 180px;
  }

  .hero-description {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background-color: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    flex-direction: column;
    align-items: flex-start;
    padding: 1.5rem;
    gap: 1.25rem;
    box-shadow: var(--shadow-md);
    transform: translateY(-150%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.25s ease;
  }

  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-link {
    font-size: 1.05rem;
    width: 100%;
    padding: 0.5rem 0;
  }

  .nav-link.active::after {
    bottom: 0;
  }

  .page-title {
    font-size: 2rem;
  }

  .hero-title {
    font-size: 2.15rem;
  }

  .grid-2, .grid-3 {
    grid-template-columns: 1fr;
  }

  .footer-container {
    flex-direction: column;
    gap: 2rem;
  }

  .footer-links {
    flex-direction: column;
    gap: 1.5rem;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
}

@media (max-width: 480px) {
  .container, .reading-container {
    padding: 0 1rem;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .btn {
    width: 100%;
  }
}