/* Base */
body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #f8fafc;
  margin: 0;
  padding: 0;
  scroll-behavior: smooth;
  transition: background-color 0.2s ease, color 0.2s ease;
}

/* Utilities */
.gradient-bg {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

/* Dropdown */
.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: white;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  z-index: 50;
  min-width: 200px;
}
.dropdown-menu a {
  display: block;
  padding: 0.75rem 1.5rem;
  color: #374151;
  text-decoration: none;
  font-size: 0.875rem;
  transition: background-color 0.2s ease;
}
.dropdown-menu a:hover {
  background-color: #f3f4f6;
}
.dropdown:hover .dropdown-menu {
  display: block;
}

/* Modal */
.payment-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1000;
}
.payment-card {
  background: white;
  border-radius: 12px;
  padding: 2rem;
  max-width: 600px;
  margin: 10% auto;
  position: relative;
  max-height: 80vh;
  overflow-y: auto;
}

.copy-btn {
  background: #6366f1;
  color: white;
  padding: 4px 8px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.875rem;
}

.bank-item {
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid #e5e7eb;
}

/* Hero */
.hero-section {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
  position: relative;
  overflow: hidden;
}
.hero-section.hero-with-image {
  background-image: linear-gradient(135deg, rgba(255,255,255,0.65), rgba(255,255,255,0.35)), url('logo/logo3.png');
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
}
.hero-section.hero-with-image .hero-content h1,
.hero-section.hero-with-image .hero-content p {
  color: #111827 !important; /* slate-900 for light mode */
}
.hero-section.hero-with-image .hero-bg-pattern { display: none; }

.hero-content {
  position: relative;
  z-index: 10;
  max-width: 800px;
}

.product-dropdown {
  background: white;
  border-radius: 12px;
  padding: 1.5rem;
  margin-top: 2rem;
  display: inline-block;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
}

.hero-bg-pattern {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.1;
  background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%23667eea' fill-opacity='0.4' fill-rule='evenodd'/%3E%3C/svg%3E");
}

/* Features */
.feature-card {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.category-section { padding: 5rem 0; }
.category-header { text-align: center; margin-bottom: 3rem; }
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 2rem;
}

/* Dark mode */
html.dark { color-scheme: dark; background-color: #0b1220; }
.dark body { background-color: #0b1220; color: #e5e7eb; }
.dark header { background: rgba(17, 24, 39, 0.85); }
.dark .text-gray-900 { color: #f3f4f6 !important; }
.dark .text-gray-700 { color: #e5e7eb !important; }
.dark .text-gray-600 { color: #cbd5e1 !important; }
.dark .text-gray-500 { color: #9ca3af !important; }
.dark .text-gray-400 { color: #94a3b8 !important; }
.dark .bg-white { background-color: #111827 !important; }
.dark .bg-gray-50 { background-color: #0f172a !important; }
.dark .border-gray-200 { border-color: #374151 !important; }
.dark .dropdown-menu { background: #111827; border-color: #374151; }
.dark .dropdown-menu a { color: #e5e7eb; }
.dark .dropdown-menu a:hover { background-color: #1f2937; }
.dark .feature-card { background-color: #0f172a; border-color: #1f2937; }
.dark .payment-card { background-color: #0b1220; color: #e5e7eb; }
/* .dark #mobileMenu kuralı çakışma yarattığı için kaldırıldı. */
.dark footer { background-color: #0b0f1a; }
.dark .hero-section.hero-with-image {
  background-image: linear-gradient(135deg, rgba(0,0,0,0.7), rgba(0,0,0,0.55)), url('logo/logo3.png');
}
.dark .hero-section.hero-with-image .hero-content h1,
.dark .hero-section.hero-with-image .hero-content p {
  color: #ffffff !important;
}

/* Mobile drawer menu */
.mobile-menu-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(23, 27, 38, 0.3);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
  z-index: 60;
  display: none;
}
.mobile-menu-overlay.open { display: block; }

.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  height: 100vh;
  width: 80vw;
  max-width: 360px;
  background: #ffffff;
  border-left: 1px solid #e5e7eb;
  box-shadow: -10px 0 30px rgba(0,0,0,0.08);
  transform: translateX(100%);
  transition: transform 0.25s ease;
  padding: 16px 20px;
}
.mobile-menu-overlay.open .mobile-drawer {
  transform: translateX(0);
}

.mobile-drawer .menu-title { font-size: 0.75rem; text-transform: uppercase; letter-spacing: .06em; color: #6b7280; margin: 4px 0 10px; }
.mobile-drawer .menu-links a { display: block; padding: 12px 0; color: #374151; font-size: 1.0625rem; text-decoration: none; }
.mobile-drawer .menu-links a:hover { color: #2563eb; }

/* Dark mode still applies to the drawer, but not the overlay */
.dark .mobile-drawer { background: #111827; border-left-color: #374151; }
.dark .mobile-drawer .menu-title { color: #9ca3af; }
.dark .mobile-drawer .menu-links a { color: #e5e7eb; }
.dark .mobile-drawer .menu-links a:hover { color: #60a5fa; }

/* Lock scroll when menu open */
body.no-scroll { overflow: hidden; }