/* ========================================
   Akkuş Eğitim — Responsive
   ======================================== */

@media (max-width: 1024px) {
  .hero__grid,
  .about-grid,
  .split-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero__visual {
    order: -1;
  }

  .hero__photo-wrap {
    width: min(100%, 380px);
    margin: 0 auto;
  }

  .cards-grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .detail-layout {
    grid-template-columns: 1fr;
  }

  .detail-aside {
    position: static;
  }

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

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

@media (max-width: 860px) {
  .nav {
    position: fixed;
    inset: var(--header-height) 0 auto 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    padding: 16px 20px 24px;
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition), opacity var(--transition), visibility var(--transition);
    box-shadow: var(--shadow-md);
    max-height: calc(100vh - var(--header-height));
    overflow-y: auto;
  }

  .nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }

  .nav__link {
    padding: 14px 16px;
    font-size: 1rem;
  }

  .nav__cta {
    margin-left: 0;
    width: 100%;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .nav-overlay {
    display: block;
    position: fixed;
    inset: var(--header-height) 0 0 0;
    background: rgba(31, 41, 55, 0.35);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition), visibility var(--transition);
    z-index: 999;
  }

  .nav-overlay.is-open {
    opacity: 1;
    visibility: visible;
  }

  body.menu-open {
    overflow: hidden;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 56px 0;
  }

  .section__header {
    margin-bottom: 36px;
  }

  .cards-grid,
  .cards-grid--4,
  .mission-grid,
  .contact-grid,
  .related-grid {
    grid-template-columns: 1fr;
  }

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

  .hero {
    padding: 36px 0 56px;
  }

  .hero__card {
    left: 12px;
    right: 12px;
    max-width: none;
    bottom: 14px;
  }

  .cta-band {
    padding: 36px 24px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .btn-group {
    width: 100%;
  }

  .btn-group .btn {
    flex: 1 1 auto;
  }

  .page-hero {
    padding: 36px 0 32px;
  }

  .form-card {
    padding: 22px;
  }

  .service-card__actions .btn {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .hero__title {
    font-size: 1.85rem;
  }

  .hero__badge {
    font-size: 0.8rem;
  }

  .hero__trust {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .whatsapp-float {
    right: 14px;
    bottom: 14px;
    width: 54px;
    height: 54px;
  }

  .logo__brand {
    font-size: 1rem;
  }

  .btn {
    min-height: 46px;
    padding: 11px 18px;
  }

  .error-page__code {
    font-size: 4rem;
  }
}

@media (max-width: 360px) {
  .site-header__inner {
    gap: 12px;
  }

  .hero__desc,
  .section__desc,
  .page-hero p {
    font-size: 0.975rem;
  }

  .service-card,
  .feature-card {
    padding: 20px;
  }

  .cta-band h2 {
    font-size: 1.35rem;
  }
}