/* ============================================================
   ESO GÜVENLİK TEKNOLOJİLERİ — Responsive Stil Dosyası
   responsive.css
   Breakpoints: 320px | 480px | 768px | 992px | 1200px | 1600px
   ============================================================ */

/* ============================================================
   1. BÜYÜK EKRANLAR (1600px+)
   ============================================================ */
@media (min-width: 1600px) {
  .container {
    max-width: 1520px;
  }

  :root {
    --font-size-6xl: 4.5rem;
    --font-size-5xl: 3.5rem;
  }

  .hero-title {
    font-size: 5rem;
  }

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

/* ============================================================
   2. ORTA-BÜYÜK EKRANLAR (1200px - 1599px)
   ============================================================ */
@media (min-width: 1200px) and (max-width: 1599px) {
  .container {
    max-width: 1160px;
  }
}

/* ============================================================
   3. TABLET-BÜYÜK (992px - 1199px)
   ============================================================ */
@media (max-width: 1199px) {
  .container {
    max-width: 960px;
    padding: 0 var(--spacing-md);
  }

  .services-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
  }

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

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

  .gallery-masonry {
    columns: 3;
  }
}

/* ============================================================
   4. TABLET (768px - 991px)
   ============================================================ */
@media (max-width: 991px) {
  :root {
    --spacing-xl: 3.5rem;
    --spacing-2xl: 5rem;
    --header-height: 72px;
  }

  /* Header */
  #menu-toggle {
    display: flex;
  }

  #main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: rgba(15, 23, 42, 0.99);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: var(--spacing-sm);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.3s ease;
    border-bottom: 1px solid rgba(255,255,255,0.05);
  }

  #main-nav.open {
    max-height: 600px;
    padding: var(--spacing-md) var(--spacing-sm);
  }

  .nav-link {
    padding: 14px 16px;
    border-radius: 8px;
    font-size: var(--font-size-base);
    justify-content: space-between;
  }

  .nav-item {
    position: static;
  }

  .dropdown-menu {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    background: rgba(255,255,255,0.03);
    border-left: 2px solid rgba(6, 182, 212, 0.3);
    border-radius: 0 8px 8px 0;
    margin-left: 16px;
    padding: 4px;
    display: none;
    box-shadow: none;
  }

  .dropdown-menu::before { display: none; }

  .dropdown-menu.mobile-open {
    display: block;
  }

  /* Hero */
  .hero-title {
    font-size: clamp(2rem, 4vw, 3rem);
  }

  .hero-desc {
    font-size: var(--font-size-base);
  }

  /* Genel */
  .section-title {
    font-size: var(--font-size-3xl);
  }

  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }

  /* Anasayfa - kurumsal tanıtım */
  .about-preview {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }

  .about-content {
    padding-left: 0;
  }

  .about-image-badge {
    right: 0;
    bottom: -16px;
  }

  /* İstatistikler */
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  /* Blog */
  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* CTA */
  .cta-content {
    flex-direction: column;
    text-align: center;
  }

  .cta-buttons {
    justify-content: center;
  }

  /* Galeri */
  .gallery-masonry {
    columns: 3;
  }

  /* İletişim */
  .contact-grid {
    grid-template-columns: 1fr;
  }

  /* Hizmet detay */
  .service-detail-intro {
    grid-template-columns: 1fr;
  }

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

  .advantages-list {
    grid-template-columns: 1fr;
  }

  /* Blog detay */
  .blog-detail-layout {
    grid-template-columns: 1fr;
  }

  /* Footer */
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
  }

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

  /* Takım */
  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Değerler */
  .values-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ============================================================
   5. MOBİL (480px - 767px)
   ============================================================ */
@media (max-width: 767px) {
  :root {
    --spacing-xl: 3rem;
    --header-height: 68px;
    --font-size-4xl: 1.875rem;
    --font-size-5xl: 2.25rem;
  }

  /* Hero */
  #hero {
    min-height: 100svh;
  }

  .hero-title {
    font-size: clamp(1.75rem, 6vw, 2.5rem);
    max-width: 100%;
  }

  .hero-desc {
    font-size: var(--font-size-base);
    max-width: 100%;
  }

  .hero-buttons {
    gap: 12px;
  }

  .btn-lg {
    padding: 14px 28px;
    font-size: var(--font-size-base);
  }

  .hero-arrow {
    display: none;
  }

  .hero-scroll {
    display: none;
  }

  /* Bölüm başlıkları */
  .section {
    padding: var(--spacing-lg) 0;
  }

  .section-title {
    font-size: var(--font-size-2xl);
  }

  .section-subtitle {
    font-size: var(--font-size-base);
  }

  /* Grid'ler */
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }

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

  /* Stats */
  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
  }

  .stat-card {
    padding: var(--spacing-md);
  }

  .stat-number {
    font-size: var(--font-size-4xl);
  }

  /* Blog */
  .blog-grid {
    grid-template-columns: 1fr;
  }

  /* Galeri */
  .gallery-masonry {
    columns: 2;
    column-gap: 10px;
  }

  .gallery-filters {
    gap: 8px;
  }

  .gallery-filter-btn {
    padding: 8px 16px;
    font-size: var(--font-size-xs);
  }

  /* İletişim */
  .contact-info-card,
  .contact-form-card {
    padding: var(--spacing-md);
  }

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

  /* Footer */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

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

  /* Hizmet detay */
  .tech-table th,
  .tech-table td {
    padding: 12px;
    font-size: var(--font-size-xs);
  }

  /* Page hero */
  .page-hero-title {
    font-size: clamp(1.5rem, 5vw, 2.25rem);
  }

  /* About features */
  .about-features {
    grid-template-columns: 1fr;
  }

  /* Team */
  .team-grid {
    grid-template-columns: 1fr;
  }

  /* Values */
  .values-grid {
    grid-template-columns: 1fr;
  }

  /* Related */
  .related-grid {
    grid-template-columns: 1fr;
  }

  /* Blog detay */
  .share-section {
    flex-wrap: wrap;
    gap: 10px;
  }

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

  /* Advantages */
  .advantages-list {
    grid-template-columns: 1fr;
  }

  /* CTA */
  .cta-text h2 {
    font-size: var(--font-size-2xl);
  }

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

  .cta-buttons .btn {
    justify-content: center;
  }

  /* Lightbox */
  .lightbox-prev { left: 8px; }
  .lightbox-next { right: 8px; }
  .lightbox-close {
    top: 12px;
    right: 12px;
  }

  /* Back to top */
  #back-to-top {
    bottom: 20px;
    right: 16px;
    width: 44px;
    height: 44px;
  }
}

/* ============================================================
   6. KÜÇÜK MOBİL (320px - 479px)
   ============================================================ */
@media (max-width: 479px) {
  :root {
    --spacing-md: 1.25rem;
    --header-height: 64px;
  }

  .container {
    padding: 0 var(--spacing-sm);
  }

  .logo-text span:first-child {
    font-size: var(--font-size-lg);
  }

  .logo-text span:last-child {
    display: none;
  }

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

  .btn {
    padding: 12px 24px;
    font-size: var(--font-size-sm);
  }

  .section-title {
    font-size: var(--font-size-xl);
  }

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

  .stat-icon {
    width: 48px;
    height: 48px;
    font-size: 22px;
  }

  .gallery-masonry {
    columns: 2;
  }

  .service-card-image {
    height: 180px;
  }

  .about-image-main {
    height: 300px;
  }

  .about-image-badge {
    right: 16px;
    bottom: -10px;
    padding: 16px;
  }

  .about-image-badge strong {
    font-size: var(--font-size-2xl);
  }

  .section-badge {
    font-size: 0.65rem;
    padding: 5px 14px;
  }

  /* Footer */
  .footer-social {
    justify-content: center;
  }

  .footer-brand {
    text-align: center;
  }

  .logo-icon {
    width: 38px;
    height: 38px;
  }
}

/* ============================================================
   7. TOUCH DEVICE OPTİMİZASYONLARI
   ============================================================ */
@media (hover: none) {
  /* Hover efektlerini touch'ta kapat */
  .service-card:hover {
    transform: none;
  }

  .service-card:hover .service-card-image-overlay {
    opacity: 0;
  }

  .gallery-item:hover .gallery-item-overlay {
    opacity: 0;
  }

  .nav-item:hover .dropdown-menu {
    opacity: 0;
    visibility: hidden;
  }
}

/* ============================================================
   8. PRİNT STYLE
   ============================================================ */
@media print {
  #header,
  #back-to-top,
  #loading-screen,
  .hero-controls,
  .hero-arrow {
    display: none !important;
  }

  body {
    font-size: 12pt;
    color: #000;
  }

  .section {
    padding: 20pt 0;
  }
}

/* ============================================================
   9. YÜKSEK ÇÖZÜNÜRLÜK (Retina) OPTİMİZASYONLARI
   ============================================================ */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  /* Keskin görüntüler için border kullan yerine box-shadow */
  .logo-icon {
    box-shadow: 0 0 0 0.5px rgba(6, 182, 212, 0.3);
  }
}