/* ==========================================================================
   Erol Kurt Resmi Web Sitesi - Modern Style System (Bootstrap 5 Extension)
   ========================================================================== */

/* 1. Google Fonts Importer */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

/* 2. Root CSS Variables (Renk Paleti & Tasarım Değişkenleri) */
:root {
  --primary-color: #0b1a30;
  --primary-light: #162e4c;
  --accent-color: #d4af37;
  --accent-hover: #b89628;
  --accent-soft: rgba(212, 175, 55, 0.12);
  --dark-bg: #060d17;
  --light-bg: #f8fafc;
  --card-bg: #ffffff;
  --text-dark: #0f172a;
  --text-muted: #64748b;
  --border-color: #e2e8f0;
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --transition-fast: all 0.25s ease;
  --transition-normal: all 0.35s cubic-bezier(0.165, 0.84, 0.44, 1);
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 10px 25px -5px rgba(11, 26, 48, 0.08);
  --shadow-lg: 0 20px 35px -10px rgba(11, 26, 48, 0.15);
}

/* 3. Temel Tipografi ve Sıfırlamalar */
body {
  font-family: var(--font-body);
  color: var(--text-dark);
  background-color: var(--light-bg);
  overflow-x: hidden;
  line-height: 1.6;
}

h1, h2, h3, h4, h5, h6, .font-heading {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--primary-color);
  letter-spacing: -0.02em;
}

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

/* 4. Sticky Header & Navbar Tasarımı */
.navbar-custom {
  background-color: rgba(11, 26, 48, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 2px solid var(--accent-color);
  padding: 0.8rem 1rem;
  transition: var(--transition-fast);
}

.navbar-brand-img {
  height: 68px;
  max-height: 68px;
  width: auto;
  object-fit: contain;
  transition: var(--transition-fast);
}

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

.navbar-custom .nav-link {
  font-family: var(--font-heading);
  color: rgba(255, 255, 255, 0.85);
  font-weight: 500;
  font-size: 1.05rem;
  padding: 0.5rem 1.1rem !important;
  border-radius: var(--radius-sm);
  position: relative;
  transition: var(--transition-fast);
}

.navbar-custom .nav-link:hover,
.navbar-custom .nav-link.active {
  color: var(--accent-color) !important;
  background-color: rgba(255, 255, 255, 0.05);
}

.navbar-custom .nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 3px;
  background-color: var(--accent-color);
  border-radius: 2px;
}

.navbar-toggler {
  border: 1px solid var(--accent-color);
  color: #ffffff;
}

.navbar-toggler:focus {
  box-shadow: 0 0 0 0.25rem var(--accent-soft);
}

/* Offcanvas Mobil Menü İyileştirmeleri */
.offcanvas-dark {
  background-color: var(--primary-color);
  color: #ffffff;
}

.offcanvas-dark .btn-close-white {
  filter: invert(1) grayscale(100%) brightness(200%);
}

/* 5. Hero Carousel Slider (Anasayfa) */
.hero-carousel {
  position: relative;
}

.hero-carousel .carousel-item {
  height: 85vh;
  min-height: 520px;
  max-height: 800px;
  background-color: var(--dark-bg);
}

.hero-carousel .carousel-item img {
  height: 100%;
  width: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg, rgba(11, 26, 48, 0.65) 0%, rgba(6, 13, 23, 0.88) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}

.hero-caption-box {
  max-width: 850px;
  padding: 2.5rem;
  background: rgba(11, 26, 48, 0.45);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(212, 175, 55, 0.3);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.hero-badge {
  display: inline-block;
  background-color: var(--accent-color);
  color: var(--primary-color);
  font-weight: 700;
  font-size: 0.85rem;
  padding: 0.4rem 1.2rem;
  border-radius: 50px;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 1.2rem;
}

.hero-title {
  color: #ffffff;
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.hero-subtitle {
  color: rgba(255, 255, 255, 0.9);
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 400;
  margin-bottom: 2rem;
}

.btn-accent {
  background-color: var(--accent-color);
  color: var(--primary-color);
  font-weight: 700;
  padding: 0.8rem 2rem;
  border-radius: var(--radius-sm);
  border: 2px solid var(--accent-color);
  transition: var(--transition-fast);
}

.btn-accent:hover {
  background-color: var(--accent-hover);
  border-color: var(--accent-hover);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(212, 175, 55, 0.3);
}

.btn-outline-custom {
  background-color: transparent;
  color: #ffffff;
  font-weight: 600;
  padding: 0.8rem 2rem;
  border-radius: var(--radius-sm);
  border: 2px solid rgba(255, 255, 255, 0.6);
  transition: var(--transition-fast);
}

.btn-outline-custom:hover {
  background-color: #ffffff;
  color: var(--primary-color);
  border-color: #ffffff;
  transform: translateY(-2px);
}

.carousel-control-prev-icon,
.carousel-control-next-icon {
  width: 3rem;
  height: 3rem;
  background-size: 50%;
  background-color: rgba(212, 175, 55, 0.8);
  border-radius: 50%;
}

/* 6. Kart ve Bölüm Tasarımları (Section & Cards) */
.section-title-wrapper {
  position: relative;
  margin-bottom: 3rem;
}

.section-title {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background-color: var(--accent-color);
  border-radius: 2px;
}

.feature-card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2rem;
  height: 100%;
  transition: var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent-color);
}

.feature-icon-wrapper {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-sm);
  background-color: var(--accent-soft);
  color: var(--accent-hover);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
  transition: var(--transition-fast);
}

.feature-card:hover .feature-icon-wrapper {
  background-color: var(--accent-color);
  color: var(--primary-color);
}

/* 7. Desteklerimiz Galeri Tasarımı (Hover Scale Effect) */
.gallery-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-normal);
  position: relative;
}

.gallery-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-color);
}

.gallery-img-wrapper {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background-color: var(--primary-color);
}

.gallery-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.165, 0.84, 0.44, 1);
}

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

.gallery-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(11, 26, 48, 0.85) 100%);
  opacity: 0;
  transition: opacity 0.35s ease;
  display: flex;
  align-items: flex-end;
  padding: 1.25rem;
}

.gallery-card:hover .gallery-overlay {
  opacity: 1;
}

.gallery-title {
  color: #ffffff;
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0;
}

/* 8. Kimdir Sayfası - Hazırlanıyor Kartı */
.coming-soon-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
  padding: 3.5rem 2rem;
  max-width: 650px;
  margin: 0 auto;
}

.pulse-spinner-wrapper {
  width: 90px;
  height: 90px;
  margin: 0 auto 1.5rem auto;
  border-radius: 50%;
  background: var(--accent-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-color);
  font-size: 2.8rem;
  position: relative;
}

.pulse-spinner-wrapper::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: 2px solid var(--accent-color);
  animation: pulse-ring 2s infinite;
}

@keyframes pulse-ring {
  0% {
    transform: scale(0.95);
    opacity: 0.8;
  }
  50% {
    transform: scale(1.25);
    opacity: 0;
  }
  100% {
    transform: scale(0.95);
    opacity: 0;
  }
}

/* 9. İletişim Kartları & Form Tasarımı */
.contact-card {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  padding: 2rem;
  height: 100%;
  transition: var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.contact-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent-color);
  box-shadow: var(--shadow-md);
}

.contact-icon-box {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background-color: var(--accent-soft);
  color: var(--accent-hover);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.contact-form-wrapper {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
}

.form-control:focus, .form-select:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 0.25rem var(--accent-soft);
}

/* 10. Common Header Banner */
.page-header-banner {
  position: relative;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: #ffffff;
  padding: 5.5rem 0;
  border-bottom: 3px solid var(--accent-color);
  overflow: hidden;
}

.page-header-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg, rgba(6, 13, 23, 0.88) 0%, rgba(6, 13, 23, 0.96) 100%);
  z-index: 1;
}

.page-header-banner .container {
  position: relative;
  z-index: 2;
}

/* Yüksek Kontrastlı Header Başlık ve Yazı Stilleri */
.page-header-banner h1 {
  color: #ffffff !important;
  font-weight: 800;
  text-shadow: 0 3px 12px rgba(0, 0, 0, 0.9);
  letter-spacing: 0.5px;
}

.page-header-banner p.lead,
.page-header-banner .lead {
  color: #f1f5f9 !important;
  font-weight: 500;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.9);
}

.page-header-banner .breadcrumb-item a {
  color: #ffd700 !important;
  font-weight: 700;
  text-shadow: 0 2px 6px rgba(0, 0, 0, 0.95);
  text-decoration: underline;
}

.page-header-banner .breadcrumb-item.active {
  color: #ffffff !important;
  font-weight: 700;
  text-shadow: 0 2px 6px rgba(0, 0, 0, 0.95);
}

.banner-kimdir {
  background-image: url('assets/images/003.jpg');
}

.banner-desteklerimiz {
  background-image: url('assets/images/002.jpg');
}

.banner-iletisim {
  background-image: url('assets/images/005.jpg');
}

/* 11. Footer Tasarımı */
.footer-custom {
  background-color: var(--dark-bg);
  color: rgba(255, 255, 255, 0.75);
  border-top: 3px solid var(--accent-color);
}

.footer-logo {
  max-height: 56px;
  width: auto;
}

.footer-link {
  color: rgba(255, 255, 255, 0.7);
  transition: var(--transition-fast);
}

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

.social-icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.08);
  color: #ffffff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.social-icon-btn:hover {
  background-color: var(--accent-color);
  color: var(--primary-color);
  transform: translateY(-3px);
}