@charset "utf-8";
/* Ana CSS Dosyası - Tüm stillemeler tek dosyaya birleştirildi */

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans:wght@400;500;600;700&display=swap');

:root {
  /* Ana renkler */
  --main-blue: #004480;
  --accent-teal: #008080;
  --white: #ffffff;
  --light-gray: #f5f5f5;
  --underline-color: #E5593F;
  
  /* Genel değişkenler */
  --primary: #004480;
  --primary-dark: #003366;
  --primary-light: #e6f0f9;
  --secondary: #6c757d;
  --success: #198754;
  --info: #0dcaf0;
  --warning: #ffc107;
  --danger: #dc3545;
  --light: #f8f9fa;
  --dark: #212529;
  --border-color: #eaedf0;
  --bg-color: #f8f9fa;
  --bg-card: #ffffff;
  --text-color: #212529;
  --text-muted: #6c757d;
  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 5px 20px rgba(0, 0, 0, 0.08);
  --transition: all 0.3s ease;
  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  
  /* Kategori Renkleri - Ana Renk ve Açık Tonu */
  --cat-1-color: #0d4b90; /* Mavi - Eğitim */
  --cat-1-light: #e7f5ff;
  
  --cat-2-color: #20c997; /* Yeşil - Etkinlik */
  --cat-2-light: #e6fcf5;
  
  --cat-3-color: #dc3545; /* Kırmızı - Duyuru */
  --cat-3-light: #fff5f5;
  
  --cat-4-color: #fd7e14; /* Turuncu - Yenilik */
  --cat-4-light: #fff4e6;
  
  --cat-5-color: #6f42c1; /* Mor - Akademik */
  --cat-5-light: #f8f0fc;
  
  --cat-6-color: #6c757d; /* Gri - Genel */
  --cat-6-light: #f8f9fa;
  
  /* Aktif varsayılan kategori */
  --primary-color: var(--cat-1-color);
  --primary-light: var(--cat-1-light);
  
  /* Arama kutusu ve form kenarlık renkleri */
  --search-border-color: var(--cat-1-color);
  --search-border-width: 2px;
}

/* TEMEL STİLLER */
body {
  background-color: #f8f9fa;
  font-family: 'Noto Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  margin: 0; /* Üst boşluğu düzeltme */
  padding: 0;
}

.container {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 0 15px;
}

/* İçerik konteynerı (Ana içerik) */
.container {
  max-width: 1200px;
  margin: 2rem auto;
  padding: 0 15px;
}

h1 {
  font-size: 1.75rem;
  margin-bottom: 2rem;
}

/* HEADER STİLLERİ */
.main-header {
  background-color: var(--main-blue);
  padding: 0; /* Üst boşluğu düzeltmek için padding sıfırlandı */
  margin: 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: all 0.3s ease;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.sticky-header {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.header-shrink {
  padding: 0;
}

.header-hide {
  transform: translateY(-100%);
}

.header-visible {
  transform: translateY(0);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.main-header .container {
  margin-top: 0;
  margin-bottom: 0;
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
}

/* LOGO */
.navbar-brand {
  padding: 0.25rem 0;
  margin-right: 1rem;
}

.logo-img {
  height: auto;
  max-height: 50px;
  width: auto;
}

/* NAVBAR LİNKLERİ - TEMEL STİLLER */
.navbar-nav .nav-item {
  position: relative; /* after pseudo-element için */
}

.navbar-nav .nav-link {
  color: var(--white);
  font-weight: 500;
  font-size: 0.9rem;
  padding: 1rem 1.5rem;
  transition: all 0.3s ease;
}

/* ANİMASYONLU ALT ÇİZGİ */
.navbar-nav .nav-item::after {
  position: absolute;
  content: '';
  bottom: 0;
  left: 0;
  width: 0;
  height: 3px;
  background-color: var(--underline-color);
  transition: width 0.5s ease;
}

/* HOVER DURUMLARI */
.navbar-nav .nav-item:hover::after {
  width: 100%;
}

.navbar-nav .nav-link:hover {
  background-color: var(--accent-teal);
  color: var(--white);
}

/* AKTİF MENÜ STİLLERİ */
.navbar-nav .nav-item.active::after,
.navbar-nav .nav-item.show::after,
.navbar-nav .dropdown.active::after {
  width: 100%;
}

.navbar-nav .nav-item.active .nav-link,
.navbar-nav .dropdown.active .nav-link {
  background-color: var(--accent-teal);
  color: var(--white);
  font-weight: 700;
}

/* DROPDOWN MENÜ STİLLERİ */
.dropdown-toggle::after {
  display: none; /* Bootstrap varsayılan dropdown okları */
}

.rotate-icon {
  transition: transform 0.3s ease;
}

/* Hover ile dropdown açılması için */
.navbar-nav .dropdown:hover .dropdown-menu {
  display: block;
  margin-top: 0;
  animation: fadeIn 0.3s ease;
}

.navbar-nav .dropdown:hover .rotate-icon {
  transform: rotate(180deg);
}

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

.dropdown-menu {
  margin-top: 0;
  border-radius: 0;
  border: none;
  background-color: var(--main-blue);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  display: none;
}

.dropdown-item {
  color: var(--white);
  padding: 0.75rem 1.5rem;
  transition: all 0.2s ease;
  position: relative;
}

/* DROPDOWN ITEM ALT ÇİZGİ */
.dropdown-item::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--underline-color);
  transition: width 0.3s ease;
}

/* DROPDOWN ITEM HOVER VE AKTİF */
.dropdown-item:hover,
.dropdown-item.active {
  background-color: var(--accent-teal);
  color: var(--white);
}

.dropdown-item:hover::after,
.dropdown-item.active::after {
  width: 100%;
}

.dropdown-item.active {
  font-weight: 600;
}

/* Tema Değiştirici Buton Stilleri */
.theme-toggle-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background-color: var(--primary);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  position: relative;
}

.theme-toggle-btn:hover {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

/* Sol alt köşede sabit tema değiştirici */
.sticky-theme-toggle {
  position: fixed;
  left: 20px;
  bottom: 20px;
  z-index: 1000;
}

/* Işık/Karanlık ikonları */
.light-icon, .dark-icon {
  position: absolute;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.light-icon {
  opacity: 0;
  transform: scale(0);
}

.dark-icon {
  opacity: 1;
  transform: scale(1);
}

html[data-theme="dark"] .light-icon {
  opacity: 1;
  transform: scale(1);
}

html[data-theme="dark"] .dark-icon {
  opacity: 0;
  transform: scale(0);
}

/* Koleksiyon ve Form Kutusu */
.collection-box {
  background-color: white;
  border-radius: 1rem;
  box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
  margin-bottom: 2rem;
  overflow: hidden;
  border-top: 4px solid var(--search-border-color);
  transition: border-color 0.3s ease;
}

/* Koleksiyon Kartları - Masaüstü */
.collection-cards {
  display: flex;
  padding: 1rem;
  border-bottom: 1px solid #dee2e6;
}

.collection-card {
  flex: 1;
  background-color: white;
  border-radius: 0.75rem;
  padding: 1rem;
  margin: 0 0.5rem;
  cursor: pointer;
  text-decoration: none;
  color: #212529;
  transition: all 0.2s;
  border: 2px solid transparent;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  min-width: 0;
}

.collection-card:first-child {
  margin-left: 0;
}

.collection-card:last-child {
  margin-right: 0;
}

.collection-card:hover {
  transform: translateY(-0.25rem);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.icon-circle {
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.75rem;
}

.icon-blue {
  background-color: #e7f5ff;
  color: #0d6efd;
}

.icon-green {
  background-color: #d8f3e9;
  color: #20c997;
}

.icon-teal {
  background-color: #d1f5f9;
  color: #17a2b8;
}

.icon-yellow {
  background-color: #fff8dd;
  color: #ffc107;
}

.icon-red {
  background-color: #ffe5e8;
  color: #dc3545;
}

.card-title {
  font-size: 1.125rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-description {
  font-size: 0.75rem;
  color: #6c757d;
  margin-bottom: 0.75rem;
  flex-grow: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Koleksiyon Kartı Aktif Durumlar */
.collection-card.active-blue {
  border-color: #0d6efd;
  background-color: #f8f9ff;
}

.collection-card.active-green {
  border-color: #20c997;
  background-color: #f8fffc;
}

.collection-card.active-teal {
  border-color: #17a2b8;
  background-color: #f8feff;
}

.collection-card.active-yellow {
  border-color: #ffc107;
  background-color: #fffef8;
}

.collection-card.active-red {
  border-color: #dc3545;
  background-color: #fff8f8;
}

/* Mobil Dropdown Menü */
.mobile-collection-select {
  display: none;
  padding: 1rem;
  border-bottom: 1px solid #dee2e6;
}

/* Özel Stillendirilmiş Select */
.custom-select-wrapper {
  position: relative;
}

.custom-select {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  padding: 0.75rem 1rem;
  padding-right: 2.5rem;
  font-size: 1rem;
  border: 1px solid #ced4da;
  border-radius: 0.375rem;
  background-color: #fff;
  cursor: pointer;
}

.custom-select-icon {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  display: flex;
  align-items: center;
  padding-left: 1rem;
  pointer-events: none;
}

.custom-select-arrow {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  padding-right: 1rem;
  pointer-events: none;
}

/* Koleksiyon Formları */
.collection-form-container {
  padding: 1.5rem;
}

/* Güncellendi: form-header yerine form-title-wrapper */
.form-title-wrapper {
  display: flex;
  align-items: center;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid #dee2e6;
}

.form-title {
  font-size: 1.25rem;
  font-weight: 500;
  margin-bottom: 0;
}

.collection-form {
  display: none;
}

.collection-form.active {
  display: block;
}

/* Gelişmiş seçenekler gizli (ama kod korundu) */
.advanced-options {
  display: none;
}

.form-search-wrapper {
  position: relative;
}

.form-search-input {
  width: 100%;
  padding-right: 5.5rem;
  border: var(--search-border-width) solid var(--search-border-color);
  transition: all 0.3s ease;
}

.form-search-button {
  position: absolute;
  right: 0;
  top: 0;
  height: 100%;
  border-radius: 0 0.375rem 0.375rem 0;
  background-color: var(--search-border-color);
  border-color: var(--search-border-color);
  transition: all 0.3s ease;
}

.form-search-button:hover {
  background-color: var(--primary-dark);
  border-color: var(--primary-dark);
}

/* Haberler ve Duyurular Bölümü */
/* Layout */
.content-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 992px) {
  .content-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* Section Titles */
.section-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-color);
  margin: 0;
  position: relative;
}

/* Slider Container */
.slider-container {
  background-color: var(--bg-card);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
  border-top: 4px solid var(--cat-1-color);
}

.slider-container:hover {
  box-shadow: var(--shadow-md);
}

/* Slider Header */
.slider-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

/* Slider Controls */
.slider-controls {
  display: flex;
  gap: 0.5rem;
}

.control-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-color);
  color: var(--text-color);
  cursor: pointer;
  transition: var(--transition);
}

.control-btn:hover,
.control-btn:focus {
  background-color: var(--primary-light);
  color: var(--primary-color);
}

.control-btn:focus {
  outline: none;
  box-shadow: 0 0 0 2px var(--primary-color);
}

/* Slider Content Area */
.slider-content-area {
  flex-grow: 1;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* Slider Items Container */
.slider-items-container {
  position: relative;
  flex-grow: 1;
}

/* Slider Items */
.slider-item {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.5s ease, visibility 0.5s ease;
  z-index: 1;
  display: flex;
  flex-direction: column;
}

.slider-item.active {
  opacity: 1;
  visibility: visible;
  z-index: 2;
  position: relative;
}

/* Slider Item Image */
.slider-item-image {
  position: relative;
  overflow: hidden;
  height: 0;
  padding-bottom: 50%; /* 2:1 aspect ratio */
}

.slider-item-image img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.slider-item:hover .slider-item-image img {
  transform: scale(1.05);
}

/* Kategori Etiketi */
.slider-category {
  position: absolute;
  top: 15px;
  left: 15px;
  padding: 5px 12px;
  border-radius: var(--radius-sm);
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  z-index: 2;
}

/* Kategori Renkleri */
.category-1 {
  background-color: var(--cat-1-color);
}

.category-2 {
  background-color: var(--cat-2-color);
}

.category-3 {
  background-color: var(--cat-3-color);
}

.category-4 {
  background-color: var(--cat-4-color);
}

.category-5 {
  background-color: var(--cat-5-color);
}

.category-6 {
  background-color: var(--cat-6-color);
}

/* Slider Item Content */
.slider-item-content {
  padding: 1.5rem;
  background-color: var(--bg-card);
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.slider-item-content h4 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-top: 0;
  margin-bottom: 0.75rem;
  color: var(--text-color);
}

.slider-item-content p {
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

/* Butonlar */
.slider-item-link {
  align-self: flex-start;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
}

/* Kategori Link Renkleri */
.category-1-link {
  background-color: var(--cat-1-light);
  color: var(--cat-1-color);
}

.category-1-link:hover {
  background-color: var(--cat-1-color);
  color: white;
}

.category-2-link {
  background-color: var(--cat-2-light);
  color: var(--cat-2-color);
}

.category-2-link:hover {
  background-color: var(--cat-2-color);
  color: white;
}

.category-3-link {
  background-color: var(--cat-3-light);
  color: var(--cat-3-color);
}

.category-3-link:hover {
  background-color: var(--cat-3-color);
  color: white;
}

.category-4-link {
  background-color: var(--cat-4-light);
  color: var(--cat-4-color);
}

.category-4-link:hover {
  background-color: var(--cat-4-color);
  color: white;
}

.category-5-link {
  background-color: var(--cat-5-light);
  color: var(--cat-5-color);
}

.category-5-link:hover {
  background-color: var(--cat-5-color);
  color: white;
}

.category-6-link {
  background-color: var(--cat-6-light);
  color: var(--cat-6-color);
}

.category-6-link:hover {
  background-color: var(--cat-6-color);
  color: white;
}

/* Slider Indicators */
.slider-indicators {
  display: flex;
  justify-content: center;
  gap: 0.75rem; /* 6 indikatör için daha az boşluk */
  padding: 1rem;
  margin-top: auto; /* Daima en alta sabitleme */
}

.indicator {
  width: 45px; /* 6 indikatör için daha dar */
  height: 4px;
  background-color: var(--border-color);
  border: none;
  cursor: pointer;
  padding: 0;
  position: relative;
  border-radius: 2px;
  overflow: hidden;
}

.indicator-progress {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 0%;
  background-color: var(--primary-color);
  transition: width 0.1s linear;
}

.indicator.active .indicator-progress {
  animation: progress 5s linear forwards;
}

@keyframes progress {
  from { width: 0; }
  to { width: 100%; }
}

/* Duyurular Bölümü Stilleri */
.announcements-container {
  background-color: var(--bg-card);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
  border-top: 4px solid var(--cat-1-color);
}

.announcements-container:hover {
  box-shadow: var(--shadow-md);
}

.announcements-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.view-all {
  color: var(--text-muted);
  font-size: 0.875rem;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition);
}

.view-all:hover {
  color: var(--primary-color);
}

/* Duyurular wrapper - sayfalama için */
.announcements-wrapper {
  flex-grow: 1;
  overflow: hidden;
  position: relative;
}

/* Duyurular listesi */
.announcements-list {
  list-style: none;
  margin: 0;
  padding: 0;
  overflow-y: auto;
  height: 100%;
}

/* Sayfa 2 varsayılan olarak gizli */
.announcements-list.page-2 {
  display: none;
}

.announcement-item {
  border-bottom: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.announcement-link {
  display: flex;
  padding: 1rem 1.5rem;
  text-decoration: none;
  color: var(--text-color);
  transition: var(--transition);
  border-left: 4px solid transparent;
}

.announcement-link:hover {
  background-color: var(--bg-color);
}

/* Duyuru öğesi renkleri */
.announcement-category-1 .announcement-link {
  border-left-color: var(--cat-1-color);
}

.announcement-category-2 .announcement-link {
  border-left-color: var(--cat-2-color);
}

.announcement-category-3 .announcement-link {
  border-left-color: var(--cat-3-color);
}

.announcement-category-4 .announcement-link {
  border-left-color: var(--cat-4-color);
}

.announcement-category-5 .announcement-link {
  border-left-color: var(--cat-5-color);
}

.announcement-category-6 .announcement-link {
  border-left-color: var(--cat-6-color);
}

/* Hover durumunda duyuru renkleri */
.announcement-category-1 .announcement-link:hover {
  background-color: var(--cat-1-light);
}

.announcement-category-2 .announcement-link:hover {
  background-color: var(--cat-2-light);
}

.announcement-category-3 .announcement-link:hover {
  background-color: var(--cat-3-light);
}

.announcement-category-4 .announcement-link:hover {
  background-color: var(--cat-4-light);
}

.announcement-category-5 .announcement-link:hover {
  background-color: var(--cat-5-light);
}

.announcement-category-6 .announcement-link:hover {
  background-color: var(--cat-6-light);
}

.announcement-date {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 60px;
  margin-right: 1rem;
}

.date-day {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
  color: var(--text-color);
}

.date-month {
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--text-muted);
}

.announcement-content {
  flex-grow: 1;
}

.announcement-meta {
  display: flex;
  align-items: center;
  margin-bottom: 0.5rem;
}

.category-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  margin-right: 0.5rem;
}

.category-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.announcement-content h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
  color: var(--text-color);
}

.announcement-content p {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.read-more {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--primary-color);
  transition: color 0.3s ease;
}

/* Kategori Renkleri - Duyurular */
.announcement-category-1 .category-icon,
.announcement-category-1 .read-more {
  color: var(--cat-1-color);
}

.announcement-category-2 .category-icon,
.announcement-category-2 .read-more {
  color: var(--cat-2-color);
}

.announcement-category-3 .category-icon,
.announcement-category-3 .read-more {
  color: var(--cat-3-color);
}

.announcement-category-4 .category-icon,
.announcement-category-4 .read-more {
  color: var(--cat-4-color);
}

.announcement-category-5 .category-icon,
.announcement-category-5 .read-more {
  color: var(--cat-5-color);
}

.announcement-category-6 .category-icon,
.announcement-category-6 .read-more {
  color: var(--cat-6-color);
}

/* Duyurular Sayfalama Stilleri */
.announcements-pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 1rem;
  border-top: 1px solid var(--border-color);
}

.pagination-btn {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background-color: transparent;
  border-radius: 0.25rem;
  margin: 0 0.25rem;
  cursor: pointer;
  color: var(--text-muted);
  transition: all 0.2s ease;
}

.pagination-btn.active {
  background-color: var(--primary-color);
  color: white;
}

.pagination-btn:hover:not(.active) {
  background-color: var(--bg-color);
  color: var(--primary-color);
}

.pagination-next {
  width: auto;
  padding: 0 0.5rem;
}

/* Arama Kutusu Vurgu Animasyonu */
@keyframes highlight-input {
  0%, 100% { box-shadow: 0 0 0 rgba(13, 110, 253, 0); }
  50% { box-shadow: 0 0 10px rgba(13, 110, 253, 0.5); }
}

.highlight-animation {
  animation: highlight-input 1.5s ease-in-out;
}

/* Kütüphane Hizmetleri Kartları Stilleri */
.library-services {
  background-color: #f8f9fa;
  padding: 40px 0;
}

.library-services .section-title {
  color: #333;
  font-weight: 600;
  margin-bottom: 1.5rem;
  font-size: 1.75rem;
}

.service-card {
  border-radius: 8px;
  border: none;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  overflow: hidden;
  min-height: 190px;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 16px rgba(0,0,0,0.1);
}

.service-card .card-body {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.service-card .card-icon {
  margin-bottom: 0.75rem;
  font-size: 1.5rem;
  height: 40px;
  width: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background-color: rgba(13, 110, 253, 0.1);
  color: #0d6efd;
}

.service-card .card-icon .bi-laptop {
  color: #198754;
}

.service-card .card-icon .bi-journal-bookmark {
  color: #ffc107;
}

.service-card .card-icon .bi-archive {
  color: #dc3545;
}

.service-card .card-icon .bi-calendar-plus {
  color: #0dcaf0;
}

.service-card .card-icon .bi-box-arrow-in-down {
  color: #6c757d;
}

.service-card .card-icon .bi-signpost {
  color: #0d6efd;
}

.service-card .card-icon .bi-unlock {
  color: #198754;
}

.service-card .card-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: #333;
}

.service-card .card-text {
  color: #6c757d;
  margin-bottom: 0.75rem;
  flex-grow: 1;
  font-size: 0.875rem;
  line-height: 1.4;
}

.service-card .card-link {
  color: #0d6efd;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.875rem;
  display: inline-flex;
  align-items: center;
  transition: all 0.2s ease;
  margin-top: auto;
}

.service-card .card-link:hover {
  color: #0a58ca;
}

.service-card .card-link i {
  margin-left: 0.25rem;
  transition: transform 0.2s ease;
  font-size: 0.75rem;
}

.service-card .card-link:hover i {
  transform: translateX(3px);
}

/* Footer Stilleri */
.footer {
  position: relative;
  background-color: #f8f9fa;
  overflow: hidden;
}

/* Particle Background */
.particles-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  opacity: 0.08;
}

.library-icon {
  position: absolute;
  color: #004480;
  opacity: 0.5;
}

/* Daha fazla animasyon türü */
@keyframes float1 {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-25px) rotate(5deg); }
}

@keyframes float2 {
  0%, 100% { transform: translateX(0) rotate(0deg); }
  50% { transform: translateX(25px) rotate(-5deg); }
}

@keyframes float3 {
  0%, 100% { transform: translateY(0) translateX(0) rotate(0deg); }
  33% { transform: translateY(-15px) translateX(15px) rotate(5deg); }
  66% { transform: translateY(15px) translateX(-15px) rotate(-5deg); }
}

@keyframes float4 {
  0%, 100% { transform: scale(1) translateY(0); }
  50% { transform: scale(1.1) translateY(-10px); }
}

@keyframes float5 {
  0% { transform: translateX(0) translateY(0) rotate(0deg); }
  25% { transform: translateX(10px) translateY(-10px) rotate(5deg); }
  50% { transform: translateX(20px) translateY(0) rotate(0deg); }
  75% { transform: translateX(10px) translateY(10px) rotate(-5deg); }
  100% { transform: translateX(0) translateY(0) rotate(0deg); }
}

/* Footer Top Info Bar - koyu mavi (#003a70) */
.footer-top {
  background-color: #003a70;
  padding: 20px 0;
  position: relative;
  z-index: 2;
}

.footer-info {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 15px;
  flex-wrap: wrap;
  gap: 10px;
}

.footer-contact {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.contact-item {
  display: flex;
  align-items: center;
  color: #fff;
  font-size: 14px;
}

.contact-item i {
  margin-right: 8px;
}

.contact-item a {
  color: #fff;
  text-decoration: none;
  transition: opacity 0.2s;
}

.contact-item a:hover {
  opacity: 0.8;
}

.social-links {
  display: flex;
  gap: 15px;
}

.social-links a {
  color: #fff;
  font-size: 18px;
  transition: all 0.3s ease;
}

.social-links a:hover {
  color: #38b0f5;
  transform: translateY(-3px);
}

/* Footer Content */
.footer-content-wrapper {
  position: relative;
  z-index: 2;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 50px 15px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}

.footer-column {
  width: 25%;
  padding: 0 15px;
  margin-bottom: 20px;
}

.footer-title {
  font-size: 18px;
  font-weight: 600;
  color: #202124;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
  display: inline-block;
}

.footer-title:after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: #00a0dd;
}

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

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: #5f6368;
  text-decoration: none;
  font-size: 15px; /* Biraz daha büyük font */
  position: relative;
  transition: all 0.3s ease;
  padding-left: 0;
}

.footer-links a:before {
  content: "→";
  position: absolute;
  left: -20px;
  opacity: 0;
  color: #00a0dd;
  transition: all 0.3s ease;
}

.footer-links a:hover {
  color: #003a70;
  padding-left: 20px;
}

.footer-links a:hover:before {
  opacity: 1;
  left: 0;
}

/* Footer Bottom - mavimsi ton */
.footer-divider {
  width: 100%;
  height: 1px;
  background-color: #e0e0e0;
}

.footer-bottom-wrapper {
  background-color: #e6eef5;
  position: relative;
  z-index: 2;
}

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 15px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-logo {
  flex: 1;
  max-width: 150px; /* Logo için sınırlama */
}

.footer-logo a {
  display: inline-block;
}

.footer-logo img {
  height: 40px;
}

/* Logo renk filtresi */
.logo-white {
  filter: invert(0%) sepia(0%) saturate(0%) hue-rotate(0deg) brightness(100%) contrast(100%);
}

.copyright {
  flex: 2;
  text-align: center;
  font-size: 14px;
  color: #003a70;
}

.footer-legal {
  flex: 1;
  display: flex;
  gap: 20px;
  justify-content: flex-end;
}

.footer-legal a {
  color: #003a70;
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s;
}

.footer-legal a:hover {
  color: #00a0dd;
  text-decoration: underline;
}

/* KOYU MOD (DARK MODE) STİLLERİ - GELİŞTİRİLMİŞ */
html[data-theme="dark"] {
  /* %60 - Ana Arka Plan Renkleri */
  --bg-color: #121212; /* Ana arka plan */
  --bg-card: #1e1e1e; /* Kart ve bileşen arka planları */
  --bg-input: #2c2c2c; /* Form elemanları arka planı */
  --bg-hover: #2a2a2a; /* Hover durumu arka planı */
  
  /* %30 - İkincil Renkler (Header ve Footer mavisi baz alınarak) */
  --main-blue: #0a3d6e; /* Header'dan alınan koyu mavi tonu */
  --secondary-blue: #1c5692; /* Orta ton mavi */
  --border-color: #333333; /* Kenarlıklar */
  
  /* %10 - Vurgu Renkleri (Açık mavi ve aksan tonlar) */
  --accent-teal: #00b3b3; /* Teal vurgu rengi */
  --accent-blue: #38b0f5; /* Açık mavi vurgu */
  --text-color: #ffffff; /* Ana metin rengi */
  --text-muted: #c0c0c0; /* İkincil metin rengi */

  /* Gölgeler */
  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 5px 20px rgba(0, 0, 0, 0.3);
  
  /* Kategori Renkleri - Daha canlı ve görünür tonlar */
  --cat-1-color: #3b8eea; /* Mavi - Eğitim */
  --cat-1-light: #1c3f5a;
  
  --cat-2-color: #2ee6b1; /* Yeşil - Etkinlik */
  --cat-2-light: #1c4a3f;
  
  --cat-3-color: #ff6b5e; /* Kırmızı - Duyuru */
  --cat-3-light: #4a2827;
  
  --cat-4-color: #ff9a54; /* Turuncu - Yenilik */
  --cat-4-light: #4a3322;
  
  --cat-5-color: #a56ef5; /* Mor - Akademik */
  --cat-5-light: #332a4d;
  
  --cat-6-color: #a8abb0; /* Gri - Genel */
  --cat-6-light: #32373d;
}

/* Temel Elemanlar */
html[data-theme="dark"] body {
  background-color: var(--bg-color);
  color: var(--text-color);
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Header ve Navigasyon */
html[data-theme="dark"] .main-header {
  background-color: var(--main-blue);
  border-bottom: 1px solid var(--secondary-blue);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

html[data-theme="dark"] .navbar-nav .nav-link {
  color: white;
}

html[data-theme="dark"] .navbar-nav .nav-link:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

html[data-theme="dark"] .navbar-nav .nav-item.active .nav-link,
html[data-theme="dark"] .navbar-nav .dropdown.active .nav-link {
  background-color: var(--accent-teal);
  color: black; /* Koyu metin ile daha iyi kontrast */
}

html[data-theme="dark"] .dropdown-menu {
  background-color: var(--main-blue);
  border: 1px solid var(--secondary-blue);
}

html[data-theme="dark"] .dropdown-item {
  color: white;
}

html[data-theme="dark"] .dropdown-item:hover,
html[data-theme="dark"] .dropdown-item.active {
  background-color: var(--accent-teal);
  color: black;
}

/* Form Elemanları */
html[data-theme="dark"] input[type="text"],
html[data-theme="dark"] input[type="search"],
html[data-theme="dark"] input[type="email"],
html[data-theme="dark"] input[type="number"],
html[data-theme="dark"] select,
html[data-theme="dark"] textarea {
  background-color: var(--bg-input);
  color: white;
  border: 1px solid var(--border-color);
}

html[data-theme="dark"] input::placeholder {
  color: #999999;
}

html[data-theme="dark"] input:focus,
html[data-theme="dark"] select:focus,
html[data-theme="dark"] textarea:focus {
  border-color: var(--accent-teal);
  box-shadow: 0 0 0 0.25rem rgba(255, 255, 255, 0.15);
}

/* Butonlar */
html[data-theme="dark"] .btn-primary,
html[data-theme="dark"] .form-search-button {
  background-color: var(--accent-teal);
  border-color: var(--accent-teal);
  color: black; /* Koyu metin ile daha iyi kontrast */
}

html[data-theme="dark"] .btn-primary:hover,
html[data-theme="dark"] .form-search-button:hover {
  background-color: #00cccc;
  border-color: #00cccc;
}

/* Koleksiyon Kutusu ve Kartlar */
html[data-theme="dark"] .collection-box,
html[data-theme="dark"] .slider-container,
html[data-theme="dark"] .announcements-container {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

html[data-theme="dark"] .collection-box:hover,
html[data-theme="dark"] .slider-container:hover,
html[data-theme="dark"] .announcements-container:hover {
  box-shadow: var(--shadow-md);
}

html[data-theme="dark"] .collection-card {
  background-color: var(--bg-hover);
  border: 2px solid #404040;
}

html[data-theme="dark"] .collection-card:hover {
  background-color: #303030;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
}

html[data-theme="dark"] .collection-card .card-title {
  color: var(--text-color);
}

html[data-theme="dark"] .collection-card .card-description {
  color: var(--text-muted);
}

/* Aktif Koleksiyon Kartları */
html[data-theme="dark"] .collection-card.active-blue {
  border-color: var(--cat-1-color);
  background-color: rgba(59, 142, 234, 0.15);
}

html[data-theme="dark"] .collection-card.active-green {
  border-color: var(--cat-2-color);
  background-color: rgba(46, 230, 177, 0.15);
}

html[data-theme="dark"] .collection-card.active-teal {
  border-color: var(--cat-3-color);
  background-color: rgba(23, 162, 184, 0.15);
}

html[data-theme="dark"] .collection-card.active-yellow {
  border-color: var(--cat-4-color);
  background-color: rgba(255, 154, 84, 0.15);
}

html[data-theme="dark"] .collection-card.active-red {
  border-color: var(--cat-5-color);
  background-color: rgba(165, 110, 245, 0.15);
}

/* İkon Daireleri */
html[data-theme="dark"] .icon-blue {
  background-color: rgba(59, 142, 234, 0.2);
  color: #3b8eea;
}

html[data-theme="dark"] .icon-green {
  background-color: rgba(46, 230, 177, 0.2);
  color: #2ee6b1;
}

html[data-theme="dark"] .icon-teal {
  background-color: rgba(23, 162, 184, 0.2);
  color: #17a2b8;
}

html[data-theme="dark"] .icon-yellow {
  background-color: rgba(255, 154, 84, 0.2);
  color: #ff9a54;
}

html[data-theme="dark"] .icon-red {
  background-color: rgba(165, 110, 245, 0.2);
  color: #a56ef5;
}

/* Slider ve Duyurular */
html[data-theme="dark"] .slider-header,
html[data-theme="dark"] .announcements-header {
  border-bottom: 1px solid var(--border-color);
}

html[data-theme="dark"] .slider-item-content,
html[data-theme="dark"] .announcement-content {
  background-color: var(--bg-card);
}

html[data-theme="dark"] .slider-item-content h4,
html[data-theme="dark"] .announcement-content h4 {
  color: var(--text-color);
}

html[data-theme="dark"] .slider-item-content p,
html[data-theme="dark"] .announcement-content p {
  color: var(--text-muted);
}

/* Duyurular Listesi */
html[data-theme="dark"] .announcement-link {
  border-bottom: 1px solid var(--border-color);
}

html[data-theme="dark"] .announcement-category-1 .announcement-link:hover {
  background-color: var(--cat-1-light);
}

html[data-theme="dark"] .announcement-category-2 .announcement-link:hover {
  background-color: var(--cat-2-light);
}

html[data-theme="dark"] .announcement-category-3 .announcement-link:hover {
  background-color: var(--cat-3-light);
}

html[data-theme="dark"] .announcement-category-4 .announcement-link:hover {
  background-color: var(--cat-4-light);
}

html[data-theme="dark"] .announcement-category-5 .announcement-link:hover {
  background-color: var(--cat-5-light);
}

html[data-theme="dark"] .announcement-category-6 .announcement-link:hover {
  background-color: var(--cat-6-light);
}

/* Kategori Butonları */
html[data-theme="dark"] .category-1-link {
  background-color: rgba(59, 142, 234, 0.2);
  color: #3b8eea;
}

html[data-theme="dark"] .category-1-link:hover {
  background-color: #3b8eea;
  color: white;
}

html[data-theme="dark"] .category-2-link {
  background-color: rgba(46, 230, 177, 0.2);
  color: #2ee6b1;
}

html[data-theme="dark"] .category-2-link:hover {
  background-color: #2ee6b1;
  color: black;
}

html[data-theme="dark"] .category-3-link {
  background-color: rgba(255, 107, 94, 0.2);
  color: #ff6b5e;
}

html[data-theme="dark"] .category-3-link:hover {
  background-color: #ff6b5e;
  color: black;
}

html[data-theme="dark"] .category-4-link {
  background-color: rgba(255, 154, 84, 0.2);
  color: #ff9a54;
}

html[data-theme="dark"] .category-4-link:hover {
  background-color: #ff9a54;
  color: black;
}

html[data-theme="dark"] .category-5-link {
  background-color: rgba(165, 110, 245, 0.2);
  color: #a56ef5;
}

html[data-theme="dark"] .category-5-link:hover {
  background-color: #a56ef5;
  color: black;
}

/* Slider Kontrolleri */
html[data-theme="dark"] .control-btn {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--text-color);
}

html[data-theme="dark"] .control-btn:hover {
  background-color: var(--accent-teal);
  color: black;
}

html[data-theme="dark"] .indicator {
  background-color: rgba(255, 255, 255, 0.2);
}

html[data-theme="dark"] .indicator.active .indicator-progress {
  background-color: var(--accent-teal);
}

/* Kütüphane Hizmetleri Kartları */
html[data-theme="dark"] .library-services {
  background-color: var(--bg-color);
}

html[data-theme="dark"] .library-services .section-title {
  color: var(--text-color);
}

html[data-theme="dark"] .service-card {
  background-color: var(--bg-card);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}

html[data-theme="dark"] .service-card:hover {
  box-shadow: var(--shadow-md);
  background-color: var(--bg-hover);
}

html[data-theme="dark"] .service-card .card-title {
  color: var(--text-color);
}

html[data-theme="dark"] .service-card .card-text {
  color: var(--text-muted);
}

html[data-theme="dark"] .service-card .card-icon {
  background-color: rgba(0, 179, 179, 0.2);
}

html[data-theme="dark"] .service-card .card-link {
  color: var(--accent-teal);
}

html[data-theme="dark"] .service-card .card-link:hover {
  color: #00cccc;
}

/* Footer Stillemesi */
html[data-theme="dark"] .footer {
  background-color: var(--bg-color);
}

html[data-theme="dark"] .footer-top {
  background-color: var(--main-blue);
}

html[data-theme="dark"] .footer-content-wrapper {
  background-color: var(--bg-card);
}

html[data-theme="dark"] .footer-bottom-wrapper {
  background-color: #0a3d6e; /* Footer mavisi */
}

html[data-theme="dark"] .footer-title {
  color: var(--text-color);
}

html[data-theme="dark"] .footer-title:after {
  background-color: var(--accent-teal);
}

html[data-theme="dark"] .footer-links a {
  color: var(--text-muted);
}

html[data-theme="dark"] .footer-links a:hover {
  color: var(--accent-teal);
}

html[data-theme="dark"] .footer-links a:before {
  color: var(--accent-teal);
}

html[data-theme="dark"] .copyright {
  color: white;
}

html[data-theme="dark"] .footer-legal a {
  color: rgba(255, 255, 255, 0.8);
}

html[data-theme="dark"] .footer-legal a:hover {
  color: white;
}

/* Logo Renk Filtresi - Koyu tema için */
html[data-theme="dark"] .logo-white {
  filter: brightness(0) saturate(100%) invert(100%) sepia(0%) saturate(0%) hue-rotate(0deg) brightness(100%) contrast(100%);
}

/* Tema Değiştirici Buton */
html[data-theme="dark"] .theme-toggle-btn {
  background-color: var(--accent-teal);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

html[data-theme="dark"] .theme-toggle-btn:hover {
  background-color: #00cccc;
  transform: translateY(-2px);
}

/* Parçacık Efekti ve İkonlar */
html[data-theme="dark"] .library-icon {
  opacity: 0.15; /* Koyu temada ikonu biraz daha görünür yap */
  color: var(--accent-blue);
}

/* Responsive Ayarlar */
@media (max-width: 992px) {
  .collection-cards {
    display: none;
  }
  
  .mobile-collection-select {
    display: block;
  }
  
  .collection-form-container {
    padding: 1rem;
  }
  
  .navbar-nav .nav-link {
    font-size: 0.85rem;
    padding: 0.5rem 0.75rem;
  }
  
  .navbar-collapse {
    background-color: var(--main-blue);
  }
  
  .dropdown-menu {
    background-color: var(--main-blue);
    border: none;
  }
  
  .dropdown-item {
    color: var(--white);
  }
  
  /* Mobil görünümde hover yerine tıklama */
  .navbar-nav .dropdown:hover .dropdown-menu {
    display: none;
  }
  
  .navbar-nav .dropdown.show .dropdown-menu {
    display: block;
  }
  
  .logo-img {
    max-height: 40px;
  }
  
  .footer-info {
    justify-content: center;
  }
  
  .footer-contact {
    justify-content: center;
    margin-bottom: 10px;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 15px;
  }
  
  .footer-logo, .copyright, .footer-legal {
    width: 100%;
    max-width: none;
    text-align: center;
  }
  
  .footer-legal {
    justify-content: center;
  }
  
  .footer-column {
    width: 50%;
  }
}

@media (max-width: 768px) {
  .footer-column {
    width: 50%;
  }
}

@media (max-width: 576px) {
  .form-search-button {
    padding: 0 1rem;
  }
  
  .slider-header {
    padding: 1rem;
  }
  
  .slider-item-image {
    padding-bottom: 60%; /* 5:3 aspect ratio - mobilde daha yüksek görünüm */
  }
  
  .slider-item-content {
    padding: 1rem;
  }
  
  .slider-item-content h4 {
    font-size: 1.125rem;
  }
  
  .slider-item-content p {
    font-size: 0.875rem;
    margin-bottom: 1rem;
  }
  
  .section-title {
    font-size: 1.25rem;
  }
  
  .slider-indicators {
    gap: 0.5rem;
    padding: 0.75rem;
  }
  
  .indicator {
    width: 35px; /* Mobilde daha dar */
  }
  
  .logo-img {
    max-height: 35px;
  }
  
  .footer-column {
    width: 100%;
  }
  
  .service-card {
    min-height: auto;
  }
  
  .service-card .card-body {
    padding: 1rem;
  }
  
  .service-card .card-title {
    font-size: 1rem;
  }
  
  .service-card .card-text {
    font-size: 0.8125rem;
  }
  
  .contact-item {
    font-size: 13px;
  }
}