/* ==========================================================================
   Etki Araştırma - Kurumsal Tasarım Sistemi (Design System)
   Kurumsal Kimlik Standartları: 
   - Ana Renk: Koyu Yeşil / Petrol (#005B52)
   - İkincil Renk: Sarı (#F3DA67)
   - Alt Tonlar: Açık Yeşil (#D9EAD3), Vizon (#8A7967), Açık Gri (#F5F5F5), Koyu Füme (#333333)
   ========================================================================== */

:root {
  /* Kurumsal Renk Paleti */
  --primary: #005B52;             /* Ana Yeşil / Petrol */
  --primary-hover: #00443d;
  --primary-light: #007a6e;
  --secondary: #F3DA67;           /* Kurumsal Sarı */
  --secondary-hover: #e5ca52;
  --accent-green: #D9EAD3;        /* Soft Açık Yeşil */
  --accent-taupe: #8A7967;        /* Vizon / Taupe */
  --bg-light: #F5F5F5;            /* Off-White Fon */
  --bg-white: #ffffff;
  --text-dark: #333333;           /* Koyu Füme Gövde */
  --text-muted: #555555;
  --text-light: #777777;
  --border-color: #E2E8F0;
  
  /* Gölgeler & Cam Efektleri */
  --shadow-sm: 0 4px 12px rgba(0, 91, 82, 0.05);
  --shadow-md: 0 12px 32px -8px rgba(0, 91, 82, 0.12);
  --shadow-lg: 0 24px 48px -12px rgba(0, 91, 82, 0.18);
  --glass-bg: rgba(255, 255, 255, 0.92);
  --glass-border: rgba(0, 91, 82, 0.1);

  /* Tipografi */
  --font-heading: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Animasyon & Yumuşatma */
  --transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
}

/* Sıfırlama ve Genel Yapı */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-white);
  color: var(--text-dark);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--primary);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.5px;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
}

.bg-light {
  background-color: var(--bg-light);
}

.text-center { text-align: center; }
.text-white { color: #ffffff !important; }
.mt-4 { margin-top: 2rem; }
.mb-4 { margin-bottom: 2rem; }

/* Butonlar */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 14px 32px;
  font-family: var(--font-heading);
  font-size: 0.98rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn-primary {
  background-color: var(--primary);
  color: #ffffff;
  box-shadow: 0 8px 20px rgba(0, 91, 82, 0.25);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  transform: translateY(-3px);
  box-shadow: 0 14px 28px rgba(0, 91, 82, 0.35);
}

.btn-secondary {
  background-color: var(--secondary);
  color: var(--primary);
  font-weight: 700;
  box-shadow: 0 6px 18px rgba(243, 218, 103, 0.4);
}

.btn-secondary:hover {
  background-color: var(--secondary-hover);
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(243, 218, 103, 0.5);
}

.btn-outline {
  background-color: transparent;
  border-color: var(--primary);
  color: var(--primary);
}

.btn-outline:hover {
  background-color: var(--primary);
  color: #ffffff;
  transform: translateY(-3px);
}

.btn-lg {
  padding: 16px 38px;
  font-size: 1.05rem;
}

.btn-sm {
  padding: 9px 20px;
  font-size: 0.88rem;
}

.btn-block {
  width: 100%;
}

/* Navigasyon (Header) */
.navbar {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--glass-border);
  z-index: 1000;
  transition: var(--transition);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 90px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo-img {
  height: 64px;
  width: auto;
  object-fit: contain;
  transition: var(--transition);
}

.logo:hover .brand-logo-img {
  transform: scale(1.03);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-item {
  font-weight: 600;
  color: var(--text-dark);
  font-size: 0.98rem;
  position: relative;
  padding: 8px 0;
}

.nav-item:hover, .nav-item.active {
  color: var(--primary);
}

.nav-item::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background-color: var(--secondary);
  border-radius: 2px;
  transition: var(--transition);
}

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

/* Açılır Menü (Dropdown) */
.dropdown {
  position: relative;
}

.dropdown-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}

.drop-arrow {
  font-size: 0.75rem;
  transition: var(--transition);
}

.dropdown:hover .drop-arrow {
  transform: rotate(180deg);
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  width: 270px;
  background: #ffffff;
  border-radius: var(--radius-sm);
  padding: 12px 0;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
  opacity: 0;
  visibility: hidden;
  transform: translateY(15px);
  transition: var(--transition);
}

.dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  color: var(--text-dark);
  font-size: 0.92rem;
  font-weight: 500;
  border-bottom: 1px solid #f8fafc;
}

.dropdown-menu a:last-child {
  border-bottom: none;
}

.dropdown-menu a:hover {
  background-color: var(--accent-green);
  color: var(--primary);
  padding-left: 24px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 20px;
}

/* Dil Seçici */
.lang-selector {
  position: relative;
}

.lang-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-light);
  border: 1px solid var(--border-color);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  color: var(--primary);
  cursor: pointer;
}

.lang-dropdown {
  position: absolute;
  top: 110%;
  right: 0;
  background: #fff;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
  width: 160px;
  display: none;
  flex-direction: column;
  overflow: hidden;
  z-index: 100;
}

.lang-dropdown.show {
  display: flex;
}

.lang-dropdown button {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border: none;
  background: transparent;
  cursor: pointer;
  font-family: var(--font-body);
  font-weight: 500;
  text-align: left;
}

.lang-dropdown button:hover {
  background-color: var(--accent-green);
  color: var(--primary);
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.6rem;
  color: var(--primary);
  cursor: pointer;
}

/* Sayfa Yönetim Animasyonu */
.page-view {
  display: none;
  animation: fadeIn 0.4s ease-in-out;
}

.page-view.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Bölüm Başlığı Yapısı */
.section-header {
  max-width: 720px;
  margin: 0 auto 60px auto;
  position: relative;
}

.sub-title {
  display: inline-block;
  color: var(--primary);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 10px;
  background: var(--accent-green);
  padding: 4px 14px;
  border-radius: 20px;
}

.section-title {
  font-size: 2.6rem;
  color: var(--primary);
  font-weight: 800;
}

.header-line {
  width: 65px;
  height: 4px;
  background-color: var(--secondary);
  margin: 18px auto 0 auto;
  border-radius: 2px;
}

/* Hero (Giriş) Bölümü */
.hero-section {
  position: relative;
  padding: 90px 0 110px 0;
  background: linear-gradient(135deg, #ffffff 0%, #F5F5F5 50%, #E8F2F0 100%);
  overflow: hidden;
  border-bottom: 1px solid var(--border-color);
}

.hero-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-title {
  font-size: 3.6rem;
  letter-spacing: -1.5px;
  margin-bottom: 24px;
  color: var(--primary);
  font-weight: 800;
  line-height: 1.15;
}

.hero-title .highlight-yellow {
  background: linear-gradient(120deg, var(--secondary) 0%, #f7e48b 100%);
  padding: 0 8px;
  border-radius: 4px;
  color: var(--primary);
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-muted);
  margin-bottom: 38px;
  max-width: 540px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 18px;
  margin-bottom: 44px;
}

.hero-stats-card {
  display: flex;
  align-items: center;
  gap: 24px;
  background: #ffffff;
  padding: 22px 28px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  max-width: 540px;
}

.stat-highlight {
  display: flex;
  flex-direction: column;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
}

.stat-label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-dark);
}

.stat-divider {
  width: 1px;
  height: 45px;
  background-color: var(--border-color);
}

.stat-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.stat-desc i {
  color: var(--primary);
  font-size: 1.1rem;
  margin-top: 3px;
}

/* Hero Görsel Bloğu */
.hero-visual-wrapper {
  position: relative;
}

.visual-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: visible;
}

.hero-main-img {
  width: 100%;
  height: 520px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 6px solid #ffffff;
}

/* Yüzen Kurumsal Rozetler */
.floating-badge {
  position: absolute;
  background: #ffffff;
  padding: 10px 18px;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--primary);
  border: 1px solid var(--border-color);
  animation: float 4s ease-in-out infinite;
}

.badge-de { top: 30px; left: -25px; animation-delay: 0s; }
.badge-uk { top: 180px; right: -20px; animation-delay: 1.3s; }
.badge-nl { bottom: 60px; left: -15px; animation-delay: 2.6s; }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.floating-avatars {
  position: absolute;
  bottom: -25px;
  right: 30px;
  background: #ffffff;
  padding: 14px 20px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
}

.avatar-title {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.avatar-group {
  display: flex;
  align-items: center;
}

.avatar-group img {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 2px solid #ffffff;
  margin-right: -10px;
  object-fit: cover;
}

.more-avatars {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--primary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid #ffffff;
  margin-left: 4px;
}

/* Hizmet / Çalışma Alanları Kartları */
.programs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
}

.program-card {
  background: #ffffff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.program-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.card-image {
  position: relative;
  height: 220px;
  overflow: hidden;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.program-card:hover .card-image img {
  transform: scale(1.08);
}

.country-badge {
  position: absolute;
  top: 15px;
  right: 15px;
  background: var(--primary);
  color: #fff;
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 600;
}

.card-body {
  padding: 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-icon {
  width: 52px;
  height: 52px;
  background-color: var(--accent-green);
  color: var(--primary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 18px;
}

.card-body h3 {
  font-size: 1.35rem;
  margin-bottom: 12px;
  color: var(--primary);
  font-weight: 700;
}

.card-body p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 22px;
  flex: 1;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}

.card-tags span {
  background-color: var(--bg-light);
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
}

.card-link {
  font-weight: 700;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.card-link:hover {
  gap: 12px;
  color: var(--primary-hover);
}

.feature-card {
  background: linear-gradient(135deg, var(--primary), #003e38);
  color: #ffffff;
}

.feature-card h3 { color: #ffffff; }
.feature-card p { color: #d1d5db; }
.pulse-icon { background: rgba(255, 255, 255, 0.15); color: var(--secondary); }

/* Multimedyalar ve Premium Embed Tasarımları */
.video-embed-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.media-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 91, 82, 0.08);
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
}

.media-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 45px rgba(0, 91, 82, 0.16);
  border-color: var(--secondary);
}

.video-responsive {
  position: relative;
  padding-bottom: 56.25%; /* Perfect 16:9 HD Oranı */
  height: 0;
  overflow: hidden;
  background: #09090b;
}

.video-responsive iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.media-card-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.media-tag {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  background: var(--accent-green);
  padding: 5px 12px;
  border-radius: 20px;
  width: fit-content;
}

.video-facade-card {
  cursor: pointer;
}

.video-thumb-container {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  background: #000;
}

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

.video-facade-card:hover .video-thumb-img {
  transform: scale(1.08);
}

.play-button-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 68px;
  height: 68px;
  background: rgba(0, 91, 82, 0.9);
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  box-shadow: 0 0 30px rgba(0,0,0,0.4);
  transition: all 0.3s ease;
  border: 3px solid #ffffff;
}

.video-facade-card:hover .play-button-overlay {
  background: #ff0000;
  transform: translate(-50%, -50%) scale(1.15);
  box-shadow: 0 0 40px rgba(255,0,0,0.6);
}

.media-card-body h3 {
  font-size: 1.25rem;
  color: var(--primary);
  font-weight: 800;
  line-height: 1.4;
}

/* Custom Video Modal Popup */
.custom-video-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.88);
  backdrop-filter: blur(8px);
  z-index: 99999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.custom-video-modal.show {
  display: flex;
  animation: fadeIn 0.3s ease;
}

.custom-video-modal .modal-content {
  background: #ffffff;
  width: 100%;
  max-width: 900px;
  border-radius: var(--radius-lg);
  padding: 24px;
  position: relative;
  box-shadow: 0 25px 60px rgba(0,0,0,0.5);
}

.modal-close-btn {
  position: absolute;
  top: -18px;
  right: -18px;
  width: 44px;
  height: 44px;
  background: var(--primary);
  color: #fff;
  border: 3px solid #fff;
  border-radius: 50%;
  font-size: 1.2rem;
  cursor: pointer;
  box-shadow: 0 5px 15px rgba(0,0,0,0.3);
  transition: var(--transition);
}

.modal-close-btn:hover {
  background: #ff0000;
  transform: scale(1.1);
}

.modal-title {
  font-size: 1.3rem;
  color: var(--primary);
  margin-bottom: 16px;
  padding-right: 30px;
}

.modal-video-container {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  border-radius: 12px;
  overflow: hidden;
  background: #000;
}

.modal-video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* Sosyal Medya Gömülü Kartlar (Instagram & X) */
.social-embed-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  align-items: stretch;
}

.social-card {
  background: #ffffff;
  padding: 30px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: 0 10px 30px rgba(0, 91, 82, 0.08);
}

.social-card-header {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--accent-green);
}

.social-embed-body {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  min-height: 480px;
}

.instagram-iframe {
  width: 100%;
  max-width: 460px;
  height: 540px;
  border-radius: 16px;
  border: 1px solid var(--border-color);
  box-shadow: 0 8px 25px rgba(0,0,0,0.06);
}

/* Kurumsal Hakkımızda / Vizyon Bölümü */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-visual {
  position: relative;
}

.about-img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.speech-bubble {
  position: absolute;
  bottom: 30px;
  left: -20px;
  background: #ffffff;
  padding: 16px 24px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 16px;
  border: 1px solid var(--border-color);
}

.speech-bubble i {
  font-size: 2rem;
  color: var(--secondary);
}

.speech-bubble strong {
  display: block;
  font-size: 1rem;
  color: var(--primary);
}

.speech-bubble p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0;
}

.lead-text {
  font-size: 1.15rem;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 24px;
}

.slogan-box {
  background-color: var(--accent-green);
  border-left: 4px solid var(--secondary);
  padding: 18px 22px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-bottom: 24px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.slogan-box i {
  font-size: 1.4rem;
  color: var(--primary);
  margin-top: 2px;
}

.slogan-box h4 {
  font-size: 1.1rem;
  color: var(--primary);
}

.desc-text {
  color: var(--text-muted);
  margin-bottom: 30px;
}

/* Parallax Vurgu Banner */
.parallax-banner {
  position: relative;
  background-image: linear-gradient(rgba(0, 91, 82, 0.85), rgba(0, 68, 61, 0.90)), url('https://hizmet-is.org.tr/wp-content/uploads/2024/05/MDD_5667-Buyuk.jpg');
  background-attachment: scroll;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  padding: 110px 0;
  color: #ffffff;
  overflow: hidden;
  backdrop-filter: blur(4px);
}

@media (min-width: 768px) {
  .parallax-banner {
    background-attachment: fixed;
  }
}

.parallax-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  margin: 0 auto;
}

.parallax-subtitle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--secondary);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.parallax-content h2 {
  font-size: 3.2rem;
  color: #ffffff;
  margin-bottom: 18px;
  font-weight: 800;
}

.parallax-content p {
  font-size: 1.2rem;
  color: #e2e8f0;
  margin-bottom: 36px;
}

/* Başvuru ve İletişim Form Bölümü */
.apply-section {
  background: linear-gradient(135deg, var(--primary), #003b35);
  color: #ffffff;
}

.apply-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 60px;
  align-items: center;
}

.apply-info h2 {
  font-size: 3rem;
  color: #ffffff;
  margin-bottom: 16px;
}

.apply-info p {
  color: #d1d5db;
  font-size: 1.1rem;
  margin-bottom: 40px;
}

.contact-quick-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.quick-item {
  display: flex;
  align-items: center;
  gap: 18px;
}

.quick-item i {
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--secondary);
}

.quick-item span {
  display: block;
  font-size: 0.8rem;
  color: #d1d5db;
}

.quick-item strong {
  font-size: 1rem;
  color: #ffffff;
}

.apply-form-card {
  background: #ffffff;
  padding: 40px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  color: var(--text-dark);
}

.form-title {
  font-size: 1.6rem;
  margin-bottom: 24px;
  color: var(--primary);
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 6px;
  color: var(--primary);
}

.input-with-icon {
  position: relative;
}

.input-with-icon i {
  position: absolute;
  top: 50%;
  left: 16px;
  transform: translateY(-50%);
  color: var(--primary);
}

.input-with-icon input,
.input-with-icon select,
.input-with-icon textarea {
  width: 100%;
  padding: 12px 16px 12px 46px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  outline: none;
  transition: var(--transition);
}

.input-with-icon textarea {
  padding-top: 12px;
}

.input-with-icon input:focus,
.input-with-icon select:focus,
.input-with-icon textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 91, 82, 0.15);
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 24px;
}

.form-checkbox input {
  margin-top: 4px;
}

.form-checkbox label {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* İkincil Sayfa Başlıkları */
.page-header-bg {
  background: linear-gradient(135deg, var(--primary), #003934);
  color: #fff;
  padding: 60px 0;
}

.page-header-bg h1 {
  color: #fff;
  font-size: 2.8rem;
  margin-bottom: 10px;
}

.page-header-bg p {
  color: #e2e8f0;
  font-size: 1.1rem;
}

/* Detaylı Program / Eğitim Sayfası */
.filter-tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
}

.tab-btn {
  padding: 10px 24px;
  border-radius: 30px;
  border: 1px solid var(--border-color);
  background: #fff;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  color: var(--primary);
}

.tab-btn.active, .tab-btn:hover {
  background-color: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.detailed-programs-grid {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.prog-detail-card {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 30px;
  box-shadow: var(--shadow-sm);
}

.prog-header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 20px;
  padding-bottom: 15px;
  border-bottom: 1px solid var(--border-color);
}

.feature-list {
  margin: 20px 0;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  color: var(--text-dark);
  font-weight: 500;
}

.feature-list i {
  color: var(--primary);
}

/* Kurumsal Hakkımızda / İletişim Izgaraları */
.about-full-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
}

.mission-vision {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 30px;
}

.mv-box {
  background: var(--bg-light);
  padding: 20px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

.mv-box i {
  font-size: 1.8rem;
  color: var(--primary);
  margin-bottom: 10px;
}

.about-image-stack img {
  border-radius: var(--radius-md);
  margin-bottom: 20px;
  box-shadow: var(--shadow-md);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.blog-card {
  background: #fff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.blog-img {
  position: relative;
  height: 220px;
}

.blog-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.blog-category {
  position: absolute;
  top: 15px;
  left: 15px;
  background: var(--primary);
  color: #fff;
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 700;
}

.blog-content {
  padding: 24px;
}

.blog-date {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: block;
  margin-bottom: 10px;
}

.blog-content h3 {
  font-size: 1.2rem;
  margin-bottom: 12px;
  color: var(--primary);
}

.read-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  color: var(--primary);
  margin-top: 15px;
}

/* İletişim Bilgileri */
.contact-full-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
}

.info-box-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 24px;
}

.info-box {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.info-box i {
  width: 44px;
  height: 44px;
  background: var(--accent-green);
  color: var(--primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.map-mockup {
  height: 100%;
  min-height: 350px;
  background: var(--bg-light);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  border: 1px solid var(--border-color);
}

.map-mockup i {
  font-size: 3rem;
  margin-bottom: 12px;
  color: var(--primary);
}

/* Alt Bilgi (Footer) ve İstatistikler */
.footer-section {
  background-color: var(--primary);
  color: #ffffff;
  padding-top: 0;
  position: relative;
}

.footer-stats-wrapper {
  transform: translateY(-50%);
  margin-bottom: -50px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 36px 20px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
}

.stat-box {
  text-align: center;
  color: var(--primary);
}

.stat-icon {
  font-size: 1.8rem;
  color: var(--secondary);
  margin-bottom: 10px;
}

.stat-num {
  font-size: 2.2rem;
  font-weight: 800;
  font-family: var(--font-heading);
}

.stat-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
}

.footer-main {
  padding: 80px 0 50px 0;
}

.footer-content-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
}

.footer-logo .brand-title { color: #fff; }
.footer-logo .brand-sub { color: #d1d5db; }
.footer-desc { color: #d1d5db; margin: 20px 0; max-width: 320px; }

.social-links {
  display: flex;
  gap: 12px;
}

.social-links a {
  width: 38px;
  height: 38px;
  background: rgba(255, 255, 255, 0.12);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}

.social-links a:hover {
  background-color: var(--secondary);
  color: var(--primary);
  transform: translateY(-3px);
}

.footer-col h4 {
  color: #ffffff;
  font-size: 1.1rem;
  margin-bottom: 20px;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul a {
  color: #d1d5db;
  font-size: 0.95rem;
}

.footer-col ul a:hover {
  color: var(--secondary);
  padding-left: 5px;
}

.newsletter-form {
  display: flex;
  margin-top: 15px;
}

.newsletter-form input {
  padding: 12px;
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
  border: none;
  width: 100%;
  outline: none;
}

.newsletter-form button {
  background-color: var(--secondary);
  color: var(--primary);
  border: none;
  padding: 0 18px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  cursor: pointer;
  font-weight: bold;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding: 20px 0;
  color: #d1d5db;
  font-size: 0.85rem;
}

/* Mobil / Tablet Ultra-Uyumluluk (100% Fluid Mobile Responsiveness) */
@media (max-width: 1024px) {
  .video-embed-grid,
  .social-embed-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .instagram-iframe {
    height: 500px;
  }
}

@media (max-width: 992px) {
  .hero-container, 
  .about-grid, 
  .apply-wrapper, 
  .about-full-grid, 
  .contact-full-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-content-grid {
    grid-template-columns: 1fr 1fr;
  }
  .hero-main-img {
    height: 380px;
  }
}

@media (max-width: 768px) {
  .navbar {
    height: 75px;
  }
  .nav-container {
    height: 75px;
  }
  .brand-logo-img {
    height: 44px !important;
  }
  .nav-links {
    display: none;
  }
  .mobile-toggle {
    display: block;
  }
  .hero-section {
    padding: 60px 0 80px 0;
    position: relative;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.78) 0%, rgba(245, 245, 245, 0.85) 100%), 
                url('https://media.licdn.com/dms/image/v2/D4D22AQGzBJYj1ylPCg/feedshare-shrink_800/feedshare-shrink_800/0/1709025592416?e=2147483647&v=beta&t=N3AOXLrVPCX9RiO3ueGIFzC-gqTk-83MH9EplzOfOuw');
    background-size: cover;
    background-position: center;
  }
  .hero-visual-wrapper {
    display: none; /* Mobilde kaba duran büyük fotoğraf blokunu gizle, arka plan filigranı yap */
  }
  .hero-title {
    font-size: 2.2rem;
    line-height: 1.2;
  }
  .hero-subtitle {
    font-size: 1.05rem;
  }
  .hero-actions {
    flex-direction: column;
    gap: 12px;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .hero-stats-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    padding: 18px 20px;
  }
  .stat-divider {
    width: 100%;
    height: 1px;
  }
  .floating-badge {
    display: none; /* Mobilde görsel çakışmayı önlemek için */
  }
  .floating-avatars {
    position: relative;
    bottom: auto;
    right: auto;
    margin-top: 15px;
    width: 100%;
  }
  .section {
    padding: 60px 0;
  }
  .section-title {
    font-size: 2rem;
  }
  .stats-grid {
    grid-template-columns: 1fr;
  }
  .footer-content-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .social-card {
    padding: 16px;
  }
  .instagram-iframe {
    height: 480px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.85rem;
  }
  .section-title {
    font-size: 1.65rem;
  }
  .btn-lg {
    padding: 14px 24px;
    font-size: 0.95rem;
  }
  .apply-form-card {
    padding: 24px 16px;
  }
}