/* ==========================================================================
   RESPONSIVE UYUMLULUK (Responsive CSS)
   Mobil & Tablet Düzenleri, Mobil Çekmece Menü
   ========================================================================== */

/* Mobil Çekmece Menü (Mobile Drawer) */
.mobile-drawer-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(10, 28, 54, 0.6);
  backdrop-filter: blur(4px);
  z-index: 200;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.mobile-drawer-overlay.active {
  opacity: 1;
  visibility: visible;
}

.mobile-drawer {
  position: fixed;
  top: 0;
  right: -320px;
  width: 300px;
  height: 100%;
  background: #FFFFFF;
  z-index: 210;
  box-shadow: -5px 0 25px rgba(0, 0, 0, 0.15);
  display: flex;
  flex-direction: column;
  transition: right 0.35s cubic-bezier(0.165, 0.84, 0.44, 1);
  overflow-y: auto;
}

.mobile-drawer.active {
  right: 0;
}

.drawer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  border-bottom: 1px solid var(--border-color);
}

.drawer-logo {
  height: 48px;
}

.drawer-close {
  background: none;
  font-size: 1.4rem;
  color: var(--primary);
  cursor: pointer;
  padding: 4px;
}

.drawer-nav {
  padding: 20px 0;
  display: flex;
  flex-direction: column;
}

.drawer-nav a {
  padding: 12px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--primary);
  border-bottom: 1px solid #F1F5F9;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.drawer-nav a:hover,
.drawer-nav a.active {
  color: var(--accent-dark);
  background-color: #F8FAFC;
}

.drawer-footer {
  margin-top: auto;
  padding: 24px;
  background-color: #F8FAFC;
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* ==========================================================================
   BREAKPOINTS
   ========================================================================== */

/* 1200px altı */
@media (max-width: 1200px) {
  .hero-title {
    font-size: 2.6rem;
  }
  
  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
    gap: 30px;
  }
}

/* 992px altı (Tablet) */
@media (max-width: 992px) {
  .topbar-left {
    display: none;
  }
  
  .topbar-inner {
    justify-content: center;
  }
  
  .main-nav {
    display: none;
  }
  
  .mobile-toggle {
    display: block;
  }
  
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
  
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .trust-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  
  .sectors-split-grid {
    grid-template-columns: 1fr;
  }
  
  .about-preview-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .about-experience-badge {
    bottom: -10px;
    right: 10px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
  
  .modal-body {
    grid-template-columns: 1fr;
  }
}

/* 768px altı (Mobil Cihazlar) */
@media (max-width: 768px) {
  .hero-section,
  .hero-slider {
    height: 520px;
  }
  
  .hero-title {
    font-size: 2.1rem;
  }
  
  .hero-description {
    font-size: 0.95rem;
  }
  
  .slider-controls {
    right: 24px;
    bottom: 20px;
  }
  
  .products-grid {
    grid-template-columns: 1fr;
  }
  
  .catalog-controls {
    flex-direction: column;
    align-items: stretch;
  }
  
  .search-wrapper {
    min-width: 100%;
  }
  
  .filter-tabs {
    justify-content: center;
  }
  
  .rfq-form-grid {
    grid-template-columns: 1fr;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .trust-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
  
  .floating-whatsapp {
    bottom: 80px;
    right: 20px;
    width: 50px;
    height: 50px;
    font-size: 1.5rem;
  }
  
  .back-to-top {
    bottom: 20px;
    right: 20px;
  }
}

/* 480px altı */
@media (max-width: 480px) {
  .hero-title {
    font-size: 1.75rem;
  }
  
  .site-logo {
    height: 46px;
  }
  
  .header-actions .btn-rfq span {
    display: none;
  }
  
  .header-actions .btn-rfq {
    padding: 10px 14px;
  }
  
  .rfq-wrapper {
    padding: 24px 18px;
  }
  
  .about-checklist {
    grid-template-columns: 1fr;
  }
}