.portfolio {
  padding: 0 1.5rem 6rem;
}

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

.poster-item:nth-child(n) {
  grid-column: span 1;
}

.poster-item:hover .poster-img {
  transform: none;
}

.poster-item::after {
  display: none;
}

@media (max-width: 1024px) {
  :root {
    --header-h: 4rem;
  }

  .site-header {
    padding: 0 1.4rem;
  }

  .header-social {
    display: none;
  }

  .menu-btn {
    display: flex;
    grid-column: 3;
  }

  .logo {
    height: 2.1rem;
  }

  .about-section {
    padding: 3.5rem 1.5rem 3rem;
  }

  .about-text {
    font-size: 1rem;
    line-height: 1.8;
  }

  .portfolio {
    padding: 0 0.9rem 4.5rem;
  }

  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.7rem;
  }

  .site-footer {
    padding: 3.5rem 1.5rem 3rem;
  }

  .footer-name {
    font-size: clamp(1.8rem, 8vw, 2.5rem);
    letter-spacing: 0.01em;
  }

  .footer-social {
    gap: 1.2rem;
  }

  .footer-email {
    font-size: 0.78rem;
  }

  .lightbox-stage {
    width: 95vw;
    max-height: 90vh;
  }

  .lightbox-img {
    max-height: 82vh;
  }

  .lightbox-back {
    top: 1rem;
    left: 1rem;
    width: 2.4rem;
    height: 2.4rem;
    font-size: 0.95rem;
  }

  .mobile-menu-close {
    top: 1.2rem;
    right: 1.4rem;
  }
}

@media (max-width: 420px) {
  .portfolio-grid {
    grid-template-columns: 1fr;
    gap: 0.6rem;
  }

  .about-section {
    padding: 3rem 1.2rem 2.5rem;
  }

  .about-text {
    font-size: 0.95rem;
  }

  .footer-name {
    font-size: clamp(1.5rem, 9vw, 2rem);
  }
}