/* Layout ve Navigasyon Stilleri */

/* Header */
.header {
  background: var(--white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: var(--z-40);
  transition: all var(--transition-base) ease;
}

.header.scrolled {
  box-shadow: var(--shadow-lg);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-2) 0;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  gap: var(--space-3);
}

.logo-img {
  height: 80px;
  width: auto;
}

.logo-text {
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  color: var(--gray-900);
  font-family: var(--font-secondary);
}

/* Ana Navigasyon */
.nav {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.nav-list {
  display: flex;
  list-style: none;
  gap: var(--space-1);
}

.nav-item {
  position: relative;
}

.nav-link {
  display: block;
  padding: var(--space-2) var(--space-4);
  color: var(--gray-700);
  text-decoration: none;
  font-weight: var(--font-medium);
  transition: all var(--transition-base) ease;
  border-radius: var(--radius-lg);
  position: relative;
}

.nav-link:hover {
  color: var(--accent-color);
  background: var(--gray-50);
}

.nav-link.active {
  color: var(--accent-color);
  background: rgba(79, 172, 254, 0.1);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 30px;
  height: 3px;
  background: var(--accent-color);
  border-radius: var(--radius-full);
}

/* Dropdown Menu */
.nav-item.dropdown:hover .dropdown-menu {
  display: block;
  animation: dropdownFadeIn 0.3s ease;
}

.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 250px;
  background: var(--white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  padding: var(--space-3);
  margin-top: var(--space-2);
}

@keyframes dropdownFadeIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
}

.menu-toggle span {
  display: block;
  width: 25px;
  height: 3px;
  background: var(--gray-900);
  margin: 5px 0;
  transition: all var(--transition-base) ease;
  border-radius: var(--radius-full);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* Mobile Navigation */
.mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  right: -100%;
  width: 80%;
  max-width: 400px;
  height: 100vh;
  background: var(--white);
  box-shadow: var(--shadow-2xl);
  transition: right var(--transition-base) ease;
  z-index: var(--z-50);
  overflow-y: auto;
}

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

.mobile-nav-header {
  padding: var(--space-6);
  border-bottom: 1px solid var(--gray-200);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.mobile-nav-list {
  list-style: none;
  padding: var(--space-4);
}

.mobile-nav-item {
  margin-bottom: var(--space-2);
}

.mobile-nav-link {
  display: block;
  padding: var(--space-3) var(--space-4);
  color: var(--gray-700);
  text-decoration: none;
  font-weight: var(--font-medium);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base) ease;
}

.mobile-nav-link:hover {
  background: var(--gray-50);
  color: var(--accent-color);
}

.mobile-nav-link.active {
  background: rgba(79, 172, 254, 0.1);
  color: var(--accent-color);
}

/* Mobile Overlay */
.mobile-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: var(--z-40);
}

.mobile-overlay.active {
  display: block;
}

/* Hero Section */
.hero {
  padding: var(--space-24) 0;
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);  /* Açık gri-mavi gradyan */
  color: var(--gray-900);  /* Koyu metin rengi */
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.1;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-title {
  color: var(--primary-color);
  font-size: clamp(2.5rem, 6vw, var(--text-6xl));
  margin-bottom: var(--space-6);
  animation: fadeInUp 0.8s ease;
}

.hero-subtitle {
  font-size: var(--text-xl);
  margin-bottom: var(--space-8);
  color: var(--gray-700);  /* Orta koyu gri */
  animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-buttons {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.4s both;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Section */
.section {
  padding: var(--space-20) 0;
}

.section-title {
  text-align: center;
  margin-bottom: var(--space-12);
}

.section-subtitle {
  text-align: center;
  color: #000;
  font-size: var(--text-lg);
  margin-top: var(--space-4);
}

/* Footer */
.footer {
  background: var(--gray-900);
  color: var(--gray-300);
  padding: var(--space-16) 0 var(--space-8);
  margin-top: var(--space-24);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

.footer-section h4 {
  color: var(--white);
  margin-bottom: var(--space-4);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--space-2);
}

.footer-links a {
  color: var(--gray-400);
  text-decoration: none;
  transition: color var(--transition-base) ease;
}

.footer-links a:hover {
  color: var(--white);
}

.footer-bottom {
  border-top: 1px solid var(--gray-800);
  padding-top: var(--space-8);
  text-align: center;
  color: var(--gray-500);
}

.social-links {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.social-link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gray-800);
  border-radius: var(--radius-lg);
  color: var(--gray-400);
  text-decoration: none;
  transition: all var(--transition-base) ease;
}

.social-link:hover {
  background: var(--accent-color);
  color: var(--white);
  transform: translateY(-2px);
}

/* Breadcrumb */
.breadcrumb {
  padding: var(--space-4) 0;
  background: var(--gray-50);
  margin-bottom: var(--space-8);
}

.breadcrumb-list {
  display: flex;
  list-style: none;
  align-items: center;
  flex-wrap: wrap;
}

.breadcrumb-item {
  display: flex;
  align-items: center;
}

.breadcrumb-item:not(:last-child)::after {
  content: '/';
  margin: 0 var(--space-3);
  color: var(--gray-400);
}

.breadcrumb-link {
  color: var(--gray-600);
  text-decoration: none;
  transition: color var(--transition-base) ease;
}

.breadcrumb-link:hover {
  color: var(--accent-color);
}

.breadcrumb-item.active {
  color: var(--gray-900);
  font-weight: var(--font-medium);
}

/* Sidebar Layout */
.layout-with-sidebar {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: var(--space-8);
  align-items: start;
}

.sidebar {
  position: sticky;
  top: calc(70px + var(--space-4));
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-md);
}

.sidebar-nav {
  list-style: none;
}

.sidebar-nav-item {
  margin-bottom: var(--space-2);
}

.sidebar-nav-link {
  display: block;
  padding: var(--space-3) var(--space-4);
  color: var(--gray-700);
  text-decoration: none;
  border-radius: var(--radius-lg);
  transition: all var(--transition-base) ease;
}

.sidebar-nav-link:hover {
  background: var(--gray-50);
  color: var(--accent-color);
}

.sidebar-nav-link.active {
  background: rgba(79, 172, 254, 0.1);
  color: var(--accent-color);
  font-weight: var(--font-medium);
}

/* Responsive */
@media (max-width: 1024px) {
  .nav-list {
    display: none;
  }
  
  .menu-toggle {
    display: block;
  }
  
  .mobile-nav {
    display: block;
  }
  
  .layout-with-sidebar {
    grid-template-columns: 1fr;
  }
  
  .sidebar {
    position: relative;
    top: 0;
  }
}

@media (max-width: 768px) {
  .hero {
    padding: var(--space-16) 0;
  }
  
  .section {
    padding: var(--space-12) 0;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .grid-cols-2,
  .grid-cols-3,
  .grid-cols-4,
  .grid-cols-5,
  .grid-cols-6 {
    grid-template-columns: 1fr;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .btn {
    width: 100%;
    max-width: 300px;
  }
}