/* ================================================================
   ONUR ÇELİK KAPI — MOBİL RESPONSIVE TASARIM SİSTEMİ (mobil.css)
   ================================================================ */

@media (max-width: 900px) {
  /* Üst bar gizleme ve Header hizalama */
  .ust-bar { display: none !important; }
  .ust-ic { 
    height: 100px; 
    padding: 0 1.2rem; 
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  
  /* Logo Mobil Boyutlandırma */
  .logo img {
    max-height: 80px !important;
    width: auto;
  }

  /* Hamburger Menü Butonu */
  .menu-btn {
    display: flex !important;
    align-items: center;
    justify-content: center;
    background: rgba(198, 168, 107, 0.05);
    border: 1px solid rgba(198, 168, 107, 0.15);
    border-radius: 8px;
    width: 42px;
    height: 42px;
    color: var(--metin);
    cursor: pointer;
    transition: all var(--gecis);
    padding: 0;
    z-index: 10000;
  }
  
  .menu-btn:hover, .menu-btn.acik {
    background: var(--altin);
    border-color: var(--altin);
    color: var(--beyaz);
  }
  
  .menu-btn svg {
    width: 22px;
    height: 22px;
    stroke-width: 2;
  }
  
  .menu-btn .ikon-menu { display: block; }
  .menu-btn .ikon-kapat { display: none; }
  .menu-btn.acik .ikon-menu { display: none !important; }
  .menu-btn.acik .ikon-kapat { display: block !important; }

  /* Mobil Menü Konumlandırma & Animasyon (Glassmorphism & Slide Down) */
  .menu {
    display: flex !important;
    flex-direction: column;
    align-items: stretch;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    height: calc(100vh - 100px);
    background: rgba(255, 255, 255, 0.98) !important;
    backdrop-filter: blur(20px) !important;
    -webkit-backdrop-filter: blur(20px) !important;
    padding: 2rem 1.5rem !important;
    gap: 0.5rem;
    overflow-y: auto;
    z-index: 9999;
    border-top: 1px solid var(--cerceve);
    box-shadow: 0 15px 30px rgba(0,0,0,0.08);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-15px);
    transition: opacity 0.35s cubic-bezier(0.4, 0, 0.2, 1), 
                transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), 
                visibility 0.35s ease;
    pointer-events: none;
  }
  
  .menu.acik {
    opacity: 1 !important;
    visibility: visible !important;
    transform: translateY(0) !important;
    pointer-events: auto !important;
  }

  /* Menü Linkleri */
  .menu > a {
    width: 100%;
    padding: 0.9rem 1.2rem !important;
    font-size: 0.98rem;
    font-weight: 600;
    color: var(--metin);
    background: none;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all var(--gecis);
    border: 1px solid transparent;
    text-decoration: none;
  }
  
  .menu > a:hover, .menu > a.aktif {
    background: var(--altin-bg) !important;
    color: var(--altin) !important;
    border-color: rgba(198,168,107,0.08);
  }

  .menu > a::after { display: none !important; }

  /* Dropdown Menü Elemanları (Kurumsal, Ürünler) */
  .dropdown {
    width: 100%;
    display: flex;
    flex-direction: column;
  }

  .dropdown-btn {
    width: 100%;
    padding: 0.9rem 1.2rem !important;
    font-size: 0.98rem;
    font-weight: 600;
    color: var(--metin);
    background: none;
    border: 1px solid transparent;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all var(--gecis);
    cursor: pointer;
  }
  
  .dropdown-btn:hover, .dropdown.acik .dropdown-btn {
    background: var(--altin-bg) !important;
    color: var(--altin) !important;
  }

  .dropdown-btn .chevron {
    width: 16px;
    height: 16px;
    transition: transform var(--gecis);
  }

  .dropdown.acik .chevron {
    transform: rotate(180deg);
  }

  .dropdown-icerik {
    position: static !important;
    opacity: 1 !important;
    visibility: visible !important;
    transform: none !important;
    box-shadow: none !important;
    border: none !important;
    background: rgba(198,168,107,0.03) !important;
    border-left: 2px solid var(--altin) !important;
    border-radius: 0 8px 8px 0 !important;
    margin: 0.3rem 0.5rem 0.5rem 1.5rem !important;
    pointer-events: auto !important;
    display: none;
    padding: 0.3rem !important;
  }

  .dropdown.acik .dropdown-icerik {
    display: block !important;
  }

  .dropdown-icerik a {
    display: block;
    padding: 0.75rem 1.2rem !important;
    font-size: 0.92rem;
    color: var(--metin2);
    border-radius: 6px;
    text-decoration: none;
    transition: all var(--gecis);
  }

  .dropdown-icerik a:hover {
    background: var(--altin-bg) !important;
    color: var(--altin) !important;
  }

  /* Mobil CTA İletişim Butonu */
  .menu-cta {
    margin-top: 1.5rem !important;
    background: var(--altin) !important;
    color: var(--beyaz) !important;
    text-align: center;
    justify-content: center !important;
    font-weight: 700 !important;
    border-radius: 8px !important;
    box-shadow: 0 4px 15px rgba(198,168,107,0.2) !important;
  }
  
  .menu-cta:hover {
    background: var(--bronz) !important;
    transform: translateY(-2px);
  }

  /* Mobil Slider / Hero Tasarımı */
  .hero {
    height: 65vh !important;
    min-height: 450px !important;
    max-height: 600px !important;
  }

  .hero-slide-bg {
    background-size: cover !important;
    background-position: center center !important;
  }

  .hero-slide-overlay {
    background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.45) 100%) !important;
  }

  .hero-icerik {
    margin-left: 5% !important;
    padding: 0 1rem !important;
    text-align: left !important;
    width: 90% !important;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
  }

  .hero-icerik h1 {
    font-size: 1.95rem !important;
    line-height: 1.3 !important;
    margin-bottom: 0.8rem !important;
    font-weight: 800 !important;
    color: var(--beyaz) !important;
    text-shadow: 0 2px 12px rgba(0,0,0,0.6) !important;
  }

  .hero-icerik h1 em {
    font-size: 1.35rem !important;
    font-weight: 500;
  }

  .hero-icerik p {
    font-size: 0.9rem !important;
    line-height: 1.6 !important;
    margin-bottom: 1.8rem !important;
    max-width: 95% !important;
    color: rgba(255,255,255,0.9) !important;
    text-shadow: 0 1px 6px rgba(0,0,0,0.6) !important;
  }

  .hero-butonlar {
    width: 100% !important;
    display: flex !important;
    flex-direction: column !important;
    gap: 0.8rem !important;
    align-items: flex-start !important;
  }

  .hero-butonlar .btn {
    width: 100% !important;
    max-width: 280px !important;
    justify-content: center !important;
    padding: 0.95rem 1.5rem !important;
    font-size: 0.9rem !important;
  }

  .hero-ok, .hero-scroll { display: none !important; }

  /* İstatistik Sayaç Gridi */
  .sayilar-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 1.5rem 0.5rem !important;
  }
  
  .sayi-kart {
    padding: 1.2rem 0.5rem !important;
    border-right: none !important;
    border-bottom: 1px solid rgba(255,255,255,0.06) !important;
  }
  
  .sayilar-grid .sayi-kart:nth-last-child(-n+2) {
    border-bottom: none !important;
  }

  .sayi-kart .sayi-deger {
    font-size: 2.3rem !important;
    font-weight: 700;
  }

  .sayi-kart span {
    font-size: 0.8rem !important;
    opacity: 0.75;
  }

  /* Grid Layoutları */
  .tanitim-grid, .iletisim-grid, .urun-detay-grid {
    grid-template-columns: 1fr !important;
    gap: 2.5rem !important;
  }

  .tanitim-rozet {
    display: none !important;
  }

  .alt-grid {
    grid-template-columns: 1fr 1fr !important;
    gap: 2rem !important;
  }

  .bolum {
    padding: 3.5rem 0 !important;
  }

  .bolum-baslik h2 {
    font-size: 1.9rem !important;
  }

  .bolum-baslik p {
    font-size: 0.92rem !important;
    max-width: 100% !important;
  }

  /* Galeri & Katalog */
  .galeri-izgara {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 0.8rem !important;
  }

  .katalog-izgara {
    grid-template-columns: 1fr !important;
    gap: 1.5rem !important;
  }

  .alt-son {
    flex-direction: column !important;
    text-align: center !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 0.8rem !important;
  }
}

@media (max-width: 640px) {
  .konteyner {
    padding: 0 1.2rem !important;
  }

  .urun-izgara {
    grid-template-columns: 1fr !important;
    gap: 1.8rem !important;
  }

  .neden-grid {
    grid-template-columns: 1fr !important;
    gap: 1.5rem !important;
  }

  .alt-grid {
    grid-template-columns: 1fr !important;
    gap: 2rem !important;
    text-align: left !important;
  }

  .alt-logo {
    justify-content: flex-start !important;
  }

  .alt-sosyal {
    justify-content: flex-start !important;
  }

  .hero-icerik p {
    display: block !important;
    font-size: 0.82rem !important;
    line-height: 1.5 !important;
    margin-bottom: 1.2rem !important;
    opacity: 0.85 !important;
  }

  .form-2 {
    grid-template-columns: 1fr !important;
  }

  .cta-butonlar {
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 1rem !important;
  }

  .cta-butonlar .btn {
    width: 100% !important;
    justify-content: center !important;
  }
  
  .sayfa-basi {
    padding: 4.5rem 1.2rem 3.5rem !important;
  }

  .sayfa-basi h1 {
    font-size: 1.9rem !important;
  }

  .sss-liste {
    padding: 0 !important;
  }

  .thumb-item {
    width: 52px !important;
    height: 52px !important;
  }

  /* İletişim Formu Mobil Genişliği */
  .iletisim-grid .form-kart {
    padding: 1.8rem 1.2rem !important;
    border-radius: 16px !important;
  }

  .iletisim-grid form div[style*="grid-template-columns"] {
    grid-template-columns: 1fr !important;
    gap: 0 !important;
  }
}

@media (max-width: 480px) {
  .whatsapp-btn {
    bottom: 1.2rem !important;
    right: 1.2rem !important;
    width: 50px !important;
    height: 50px !important;
  }

  .filtre-bar {
    justify-content: flex-start !important;
    overflow-x: auto !important;
    flex-wrap: nowrap !important;
    padding-bottom: 0.6rem !important;
    gap: 0.5rem !important;
    -webkit-overflow-scrolling: touch;
  }

  .filtre-btn {
    flex-shrink: 0 !important;
    padding: 0.55rem 1.1rem !important;
    font-size: 0.82rem !important;
  }

  #yukariCik {
    bottom: 6rem !important;
    right: 1.2rem !important;
    width: 42px !important;
    height: 42px !important;
  }
}