/* ==========================================================================
   EGE-AN MÜHENDİSLİK DOĞALGAZ - Premium Corporate CSS System
   Color Palette: Primary #1D65B9, Secondary #0F4A91, Accent #38BDF8
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800&family=Plus+Jakarta+Sans:wght@400;500;600;700&display=swap');

:root {
  --primary: #1D65B9;
  --primary-dark: #0F4A91;
  --primary-light: #EBF3FC;
  --accent: #38BDF8;
  --accent-glow: rgba(56, 189, 248, 0.35);
  
  --bg-light: #F7F8FA;
  --bg-dark: #121824;
  --bg-white: #FFFFFF;
  --text-dark: #1D1D1D;
  --text-muted: #64748B;
  --border-light: #E2E8F0;
  
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  
  --shadow-sm: 0 2px 8px rgba(15, 74, 145, 0.05);
  --shadow-md: 0 8px 24px rgba(15, 74, 145, 0.08);
  --shadow-lg: 0 16px 40px rgba(15, 74, 145, 0.12);
  --shadow-glow: 0 0 25px rgba(29, 101, 185, 0.25);
  
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-pill: 50px;
  
  --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
  font-family: var(--font-body);
  color: var(--text-dark);
  background-color: var(--bg-white);
  line-height: 1.6;
  overflow-x: hidden;
}

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

/* Glassmorphism Classes */
.glass-panel {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.4);
}

.glass-panel-dark {
  background: rgba(15, 74, 145, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #ffffff;
}

/* Header & Navigation Bar */
.top-bar {
  background: var(--primary-dark);
  color: #ffffff;
  font-size: 0.875rem;
  padding: 8px 0;
}

.top-bar a {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  transition: var(--transition-fast);
}

.top-bar a:hover {
  color: var(--accent);
}

.navbar-custom {
  padding: 16px 0;
  transition: var(--transition-normal);
  background: #ffffff;
  box-shadow: var(--shadow-sm);
}

.navbar-custom.sticky-top {
  box-shadow: var(--shadow-md);
}

.nav-link-custom {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-dark) !important;
  padding: 8px 16px !important;
  transition: var(--transition-fast);
  border-radius: var(--radius-sm);
}

.nav-link-custom:hover, .nav-link-custom.active {
  color: var(--primary) !important;
  background: var(--primary-light);
}

/* Hero Section */
.hero-slider-section {
  position: relative;
  min-height: 85vh;
  background: linear-gradient(135deg, #0F4A91 0%, #1D65B9 100%);
  color: #ffffff;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(circle at 70% 30%, rgba(56, 189, 248, 0.15) 0%, transparent 60%);
  pointer-events: none;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.15;
  color: #ffffff;
  margin-bottom: 20px;
}

.hero-subtitle {
  display: inline-block;
  background: rgba(56, 189, 248, 0.15);
  color: var(--accent);
  padding: 6px 18px;
  border-radius: var(--radius-pill);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 16px;
  border: 1px solid rgba(56, 189, 248, 0.3);
}

/* Custom Buttons */
.btn-primary-custom {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #ffffff;
  font-family: var(--font-heading);
  font-weight: 600;
  padding: 14px 32px;
  border-radius: var(--radius-pill);
  border: none;
  box-shadow: var(--shadow-glow);
  transition: var(--transition-normal);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.btn-primary-custom:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(29, 101, 185, 0.4);
  color: #ffffff;
}

.btn-accent-custom {
  background: var(--accent);
  color: var(--primary-dark);
  font-family: var(--font-heading);
  font-weight: 700;
  padding: 14px 32px;
  border-radius: var(--radius-pill);
  border: none;
  transition: var(--transition-normal);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.btn-accent-custom:hover {
  background: #ffffff;
  color: var(--primary-dark);
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(255, 255, 255, 0.3);
}

.btn-outline-custom {
  border: 2px solid rgba(255, 255, 255, 0.4);
  color: #ffffff;
  font-family: var(--font-heading);
  font-weight: 600;
  padding: 12px 30px;
  border-radius: var(--radius-pill);
  transition: var(--transition-normal);
  text-decoration: none;
}

.btn-outline-custom:hover {
  background: #ffffff;
  color: var(--primary-dark);
  border-color: #ffffff;
}

/* Sectors Grid (Reference Screenshot 1) */
.sector-card {
  position: relative;
  height: 260px;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition-normal);
  display: flex;
  align-items: flex-end;
  padding: 24px;
  text-decoration: none;
  background-size: cover;
  background-position: center;
}

.sector-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(180deg, rgba(15, 74, 145, 0.2) 0%, rgba(15, 23, 42, 0.88) 100%);
  transition: var(--transition-normal);
}

.sector-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.sector-card:hover::before {
  background: linear-gradient(180deg, rgba(29, 101, 185, 0.4) 0%, rgba(15, 74, 145, 0.95) 100%);
}

.sector-title {
  position: relative;
  z-index: 2;
  color: #ffffff;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin: 0;
}

/* Video Showcase Section (Reference Screenshot 2) */
.video-showcase-section {
  background: #1A202C;
  color: #ffffff;
  padding: 90px 0;
}

.video-container {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
  background: #000000;
}

.video-container video {
  width: 100%;
  height: auto;
  display: block;
}

/* Corporate Catalog Banner (Reference Screenshot 3) */
.catalog-banner {
  background: linear-gradient(135deg, #0F4A91 0%, #1D65B9 100%);
  color: #ffffff;
  padding: 70px 0;
  position: relative;
  overflow: hidden;
}

.catalog-banner-bg-accent {
  position: absolute;
  right: -100px;
  top: -100px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.2) 0%, transparent 70%);
  pointer-events: none;
}

.catalog-mockup-card {
  background: #ffffff;
  color: var(--text-dark);
  border-radius: 16px;
  padding: 30px;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.3);
  transform: perspective(1000px) rotateY(-8deg) rotateX(4deg);
  transition: var(--transition-normal);
  border: 4px solid rgba(255, 255, 255, 0.2);
}

.catalog-mockup-card:hover {
  transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

/* Service Cards */
.service-card {
  background: #ffffff;
  border-radius: var(--radius-md);
  padding: 32px;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-normal);
  height: 100%;
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; width: 100%; height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: var(--transition-fast);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(29, 101, 185, 0.2);
}

.service-card:hover::before {
  opacity: 1;
}

.service-icon-wrapper {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: 24px;
  transition: var(--transition-normal);
}

.service-card:hover .service-icon-wrapper {
  background: var(--primary);
  color: #ffffff;
  transform: scale(1.08);
}

/* Stats Counter Section */
.stats-section {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  color: #ffffff;
  padding: 80px 0;
  position: relative;
}

.stat-card {
  text-align: center;
  padding: 24px;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 8px;
}

.stat-label {
  font-size: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  opacity: 0.9;
}

/* Floating Action Badges */
.whatsapp-float {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 60px;
  height: 60px;
  background: #25D366;
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4);
  z-index: 999;
  transition: var(--transition-normal);
  text-decoration: none;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  color: #ffffff;
  box-shadow: 0 12px 30px rgba(37, 211, 102, 0.6);
}

/* Footer Styling */
.footer-custom {
  background: #0B2B54;
  color: #94A3B8;
  padding: 80px 0 30px;
}

.footer-custom h5 {
  color: #ffffff;
  font-size: 1.2rem;
  margin-bottom: 24px;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

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

.footer-links a {
  color: #94A3B8;
  text-decoration: none;
  transition: var(--transition-fast);
}

.footer-links a:hover {
  color: var(--accent);
  padding-left: 6px;
}

@media (max-width: 991.98px) {
  .hero-title { font-size: 2.4rem; }
  .hero-slider-section { min-height: 70vh; padding: 60px 0; }
  .catalog-mockup-card { transform: none; }
}

@media (max-width: 575.98px) {
  .hero-title { font-size: 1.9rem; }
  .whatsapp-float { bottom: 20px; right: 20px; width: 50px; height: 50px; font-size: 1.6rem; }
}