/* ==========================================================================
   AVRUPA TEKNİK SOĞUTMA - Responsive & Mobil Uyumluluk
   ========================================================================== */

/* 1200px altı */
@media (max-width: 1200px) {
  .products-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* 992px altı (Tablet & Küçük Ekranlar) */
@media (max-width: 992px) {
  :root {
    --header-height: 70px;
  }

  .top-bar {
    display: none; /* Mobilde temiz görünüm */
  }

  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--header-height));
    background: #ffffff;
    flex-direction: column;
    align-items: flex-start;
    padding: 2rem 1.5rem;
    gap: 0.75rem;
    box-shadow: var(--shadow-xl);
    transform: translateX(-100%);
    transition: transform var(--transition-normal);
    overflow-y: auto;
    z-index: 45;
  }

  .main-nav.open {
    transform: translateX(0);
  }

  .nav-link {
    width: 100%;
    font-size: 1.1rem;
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--color-border);
  }

  .mobile-toggle-btn {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .hero-title {
    font-size: 2.4rem;
  }

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

  .stat-item:nth-child(2) {
    border-right: none;
    padding-right: 0;
  }

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

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

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

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

/* 768px altı (Mobil Cihazlar) */
@media (max-width: 768px) {
  .hero-section {
    padding: 3.5rem 0 3rem 0;
  }

  .hero-title {
    font-size: 1.95rem;
  }

  .hero-description {
    font-size: 1rem;
  }

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

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

  .stats-section {
    margin-top: -1.5rem;
  }

  .stats-card {
    grid-template-columns: 1fr;
    padding: 1.5rem;
    gap: 1.25rem;
  }

  .stat-item {
    border-right: none !important;
    padding-right: 0 !important;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 1rem;
  }

  .stat-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
  }

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

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

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

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

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

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

  .form-group.full-width {
    grid-column: span 1;
  }

  .quote-box {
    padding: 1.5rem;
  }

  .section {
    padding: 3.5rem 0;
  }

  .section-title {
    font-size: 1.75rem;
  }
}