/* ≤576px — мобильные (базовые стили в style.css + mobile nav override) */
@media (max-width: 576px) {
  .header__toggle {
    display: flex;
  }

  .header__nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(8px);
    padding: 16px 0;
    transform: translateY(-110%);
    opacity: 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  }

  .header__nav--open {
    transform: translateY(0);
    opacity: 1;
  }

  .header__menu {
    flex-direction: column;
    gap: 0;
  }

  .header__link {
    padding: 14px 20px;
    border-radius: 0;
  }

  .header__lang {
    margin: 8px 20px 0;
    padding-top: 8px;
    border-top: 1px solid rgba(0, 0, 0, 0.06);
  }

  .section {
    padding: 60px 0;
  }

  .section__title {
    font-size: 1.6rem;
  }
}

/* ≥577px — планшеты */
@media (min-width: 577px) {
  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .about__row {
    flex-direction: row;
    align-items: center;
    gap: 40px;
  }

  .about__row--reverse {
    flex-direction: row-reverse;
  }

  .about__text,
  .about__image {
    flex: 1;
  }

  .about__image-img {
    height: 100%;
    min-height: 300px;
  }

  .footer__container {
    flex-direction: row;
    justify-content: space-between;
  }
}

/* ≥769px — десктоп */
@media (min-width: 769px) {
  .section {
    padding: 100px 0;
  }

  .section__title {
    font-size: 2.5rem;
  }

  .services__grid {
    grid-template-columns: repeat(4, 1fr);
  }

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

  .sfera-card {
    grid-template-columns: 1fr 1fr;
  }

  .sfera-card__image {
    height: 100%;
    min-height: 280px;
    object-fit: cover;
  }

}

/* ≥1201px — широкие экраны */
@media (min-width: 1201px) {
  .container {
    padding: 0 40px;
  }

  .section {
    padding: 120px 0;
  }
}