/*
 * KMB Metro Altyapı - Modern Website
 * EcoFluxion-inspired Design
 * Dark Theme with Smooth Animations
 */

/* ========================================
   CSS VARIABLES
   ======================================== */
:root {
  /* Primary Colors - Deep Industrial Blue/Black */
  --color-bg-dark: #0a0a0f;
  --color-bg-primary: #0d1117;
  --color-bg-secondary: #161b22;
  --color-bg-card: #1c2128;
  --color-bg-card-hover: #252d38;
  
  /* Accent Colors */
  --color-accent-primary: #00d4aa;
  --color-accent-secondary: #0891b2;
  --color-accent-gradient: linear-gradient(135deg, #00d4aa 0%, #0891b2 100%);
  --color-accent-glow: rgba(0, 212, 170, 0.3);
  
  /* Brand Color (from original site) */
  --color-brand: #185D2E;
  --color-brand-light: #22c55e;
  
  /* Text Colors */
  --color-text-primary: #f0f6fc;
  --color-text-secondary: #8b949e;
  --color-text-muted: #6e7681;
  
  /* Border Colors */
  --color-border: #30363d;
  --color-border-light: #484f58;
  
  /* Status Colors */
  --color-success: #22c55e;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;
  
  /* Typography */
  --font-primary: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-display: 'Space Grotesk', 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 30px var(--color-accent-glow);
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  --transition-bounce: 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* ========================================
   RESET & BASE
   ======================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-primary);
  background-color: var(--color-bg-dark);
  color: var(--color-text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Selection */
::selection {
  background: var(--color-accent-primary);
  color: var(--color-bg-dark);
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: var(--radius-md);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-border-light);
}

/* ========================================
   TYPOGRAPHY
   ======================================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text-primary);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2vw, 1.5rem); }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
}

a {
  color: var(--color-accent-primary);
  text-decoration: none;
  transition: color var(--transition-base);
}

a:hover {
  color: var(--color-accent-secondary);
}

/* ========================================
   BACKGROUND EFFECTS
   ======================================== */
.bg-grid {
  background-image: 
    linear-gradient(rgba(0, 212, 170, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 170, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
}

.bg-gradient-radial {
  background: radial-gradient(ellipse at center top, rgba(0, 212, 170, 0.1) 0%, transparent 50%);
}

.bg-gradient-hero {
  background: 
    radial-gradient(ellipse at 20% 0%, rgba(0, 212, 170, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 100%, rgba(8, 145, 178, 0.1) 0%, transparent 50%),
    var(--color-bg-dark);
}

/* ========================================
   NAVBAR
   ======================================== */
.navbar-custom {
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-md) 0;
  transition: all var(--transition-base);
}

.navbar-custom.scrolled {
  background: rgba(10, 10, 15, 0.95);
  box-shadow: var(--shadow-lg);
}

.navbar-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--color-text-primary) !important;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.navbar-brand img {
  height: 40px;
  width: auto;
}

.navbar-brand .brand-accent {
  color: var(--color-accent-primary);
}

.nav-link {
  color: var(--color-text-secondary) !important;
  font-weight: 500;
  padding: var(--spacing-sm) var(--spacing-md) !important;
  position: relative;
  transition: color var(--transition-base);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--color-accent-gradient);
  transition: all var(--transition-base);
  transform: translateX(-50%);
}

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

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

/* Language Switcher */
.lang-switch {
  display: flex;
  gap: var(--spacing-xs);
  background: var(--color-bg-card);
  padding: var(--spacing-xs);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.lang-btn {
  padding: var(--spacing-xs) var(--spacing-sm);
  border: none;
  background: transparent;
  color: var(--color-text-secondary);
  font-weight: 600;
  font-size: 0.875rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.lang-btn:hover {
  color: var(--color-text-primary);
  transform: scale(1.05);
}

.lang-btn.active {
  background: var(--color-accent-primary);
  color: var(--color-bg-dark);
  box-shadow: 0 2px 8px rgba(0, 212, 170, 0.3);
}

.lang-btn.active:hover {
  transform: scale(1.02);
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-2xl);
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
  animation: fadeInUp 0.6s ease;
}

.hero-badge .badge-dot {
  width: 8px;
  height: 8px;
  background: var(--color-success);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--spacing-lg);
  animation: fadeInUp 0.6s ease 0.1s both;
}

.hero-title .gradient-text {
  background: var(--color-accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin-bottom: var(--spacing-xl);
  animation: fadeInUp 0.6s ease 0.2s both;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  animation: fadeInUp 0.6s ease 0.3s both;
}

.hero-stats {
  display: flex;
  gap: var(--spacing-2xl);
  margin-top: var(--spacing-3xl);
  animation: fadeInUp 0.6s ease 0.4s both;
}

.hero-stat {
  text-align: left;
}

.hero-stat-value {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-accent-primary);
  line-height: 1;
}

.hero-stat-label {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-top: var(--spacing-xs);
}

/* Hero Visual */
.hero-visual {
  position: relative;
  animation: fadeInRight 0.8s ease 0.3s both;
}

.hero-image-wrapper {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.hero-image-wrapper::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 212, 170, 0.2) 0%, transparent 50%);
  z-index: 1;
  pointer-events: none;
}

.hero-image-wrapper img {
  width: 100%;
  height: auto;
  display: block;
}

/* Floating Elements */
.floating-card {
  position: absolute;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-lg);
  animation: float 6s ease-in-out infinite;
}

.floating-card-1 {
  top: 10%;
  right: -20px;
  animation-delay: 0s;
}

.floating-card-2 {
  bottom: 20%;
  left: -30px;
  animation-delay: 2s;
}

/* ========================================
   BUTTONS
   ======================================== */
.btn-primary-custom {
  background: var(--color-accent-gradient);
  border: none;
  color: var(--color-bg-dark);
  font-weight: 600;
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: var(--radius-lg);
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  transition: all var(--transition-base);
  box-shadow: 0 4px 15px var(--color-accent-glow);
}

.btn-primary-custom:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--color-accent-glow);
  color: var(--color-bg-dark);
}

.btn-secondary-custom {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
  font-weight: 600;
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: var(--radius-lg);
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  transition: all var(--transition-base);
}

.btn-secondary-custom:hover {
  background: var(--color-bg-card);
  border-color: var(--color-accent-primary);
  color: var(--color-accent-primary);
}

/* ========================================
   SECTIONS
   ======================================== */
.section {
  padding: var(--spacing-3xl) 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--spacing-3xl);
}

.section-badge {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-accent-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--spacing-md);
}

.section-title {
  margin-bottom: var(--spacing-md);
}

.section-description {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
}

/* ========================================
   CARDS
   ======================================== */
.card-custom {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all var(--transition-base);
}

.card-custom:hover {
  transform: translateY(-5px);
  border-color: var(--color-accent-primary);
  box-shadow: var(--shadow-lg), 0 0 30px rgba(0, 212, 170, 0.1);
}

.card-image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/10;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.card-custom:hover .card-image img {
  transform: scale(1.05);
}

.card-image-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 10, 15, 0.9) 0%, transparent 50%);
}

.card-body-custom {
  padding: var(--spacing-lg);
}

.card-category {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-accent-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-sm);
}

.card-title-custom {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-primary);
}

.card-text-custom {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
}

.card-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.card-meta-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

/* ========================================
   SERVICE CARDS
   ======================================== */
.service-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  height: 100%;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-accent-gradient);
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-card:hover {
  transform: translateY(-5px);
  border-color: var(--color-border-light);
  box-shadow: var(--shadow-lg);
}

.service-icon {
  width: 60px;
  height: 60px;
  background: rgba(0, 212, 170, 0.1);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-lg);
  font-size: 1.5rem;
  color: var(--color-accent-primary);
}

.service-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.service-description {
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
}

/* ========================================
   STATS SECTION
   ======================================== */
.stats-section {
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.stat-item {
  text-align: center;
  padding: var(--spacing-xl);
}

.stat-value {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  background: var(--color-accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.stat-label {
  font-size: 1rem;
  color: var(--color-text-secondary);
  margin-top: var(--spacing-sm);
}

/* ========================================
   PROJECT FILTERS
   ======================================== */
.filter-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  justify-content: center;
  margin-bottom: var(--spacing-2xl);
}

.filter-btn {
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  color: var(--color-text-secondary);
  font-weight: 500;
  font-size: 0.9375rem;
  cursor: pointer;
  transition: all var(--transition-base);
}

.filter-btn:hover {
  border-color: var(--color-accent-primary);
  color: var(--color-accent-primary);
}

.filter-btn.active {
  background: var(--color-accent-gradient);
  border-color: transparent;
  color: var(--color-bg-dark);
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
  background: var(--color-bg-primary);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
}

.footer-description {
  color: var(--color-text-secondary);
  max-width: 350px;
}

.footer-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-lg);
}

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

.footer-links li {
  margin-bottom: var(--spacing-sm);
}

.footer-links a {
  color: var(--color-text-secondary);
  transition: color var(--transition-base);
}

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

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  color: var(--color-text-secondary);
}

.footer-contact-item i {
  color: var(--color-accent-primary);
  margin-top: 4px;
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  margin-top: var(--spacing-2xl);
  padding-top: var(--spacing-xl);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.footer-copyright {
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.footer-social {
  display: flex;
  gap: var(--spacing-md);
}

.footer-social a {
  width: 40px;
  height: 40px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
  transition: all var(--transition-base);
}

.footer-social a:hover {
  background: var(--color-accent-primary);
  border-color: var(--color-accent-primary);
  color: var(--color-bg-dark);
}

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

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

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-15px);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Scroll Reveal */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* ========================================
   UTILITIES
   ======================================== */
.text-gradient {
  background: var(--color-accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-accent {
  color: var(--color-accent-primary);
}

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

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

/* ========================================
   IMAGE GALLERY & LIGHTBOX
   ======================================== */
.gallery-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--spacing-md);
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 4/3;
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
}

.gallery-item:hover {
  transform: scale(1.02);
  border-color: var(--color-accent-primary);
  box-shadow: var(--shadow-glow);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.gallery-item:hover img {
  transform: scale(1.1);
}

.gallery-item-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, transparent 60%);
  display: flex;
  align-items: flex-end;
  padding: var(--spacing-md);
  opacity: 0;
  transition: opacity var(--transition-base);
}

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

.gallery-item-overlay span {
  color: white;
  font-size: 0.875rem;
  font-weight: 500;
}

/* Large Gallery Grid for Projects */
.project-gallery {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--spacing-md);
}

.project-gallery-main {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 16/10;
}

.project-gallery-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.project-gallery-thumbs {
  display: grid;
  grid-template-rows: repeat(3, 1fr);
  gap: var(--spacing-md);
}

.project-gallery-thumb {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition-base);
}

.project-gallery-thumb:hover,
.project-gallery-thumb.active {
  border-color: var(--color-accent-primary);
}

.project-gallery-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ========================================
   CERTIFICATES SECTION
   ======================================== */
.certificates-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
}

.certificate-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all var(--transition-base);
  position: relative;
}

.certificate-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--color-accent-gradient);
}

.certificate-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-glow);
}

.certificate-image {
  background: linear-gradient(135deg, #1a1f26 0%, #0d1117 100%);
  padding: var(--spacing-xl);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 400px;
}

.certificate-image img {
  max-width: 100%;
  max-height: 350px;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
}

.certificate-body {
  padding: var(--spacing-lg);
  text-align: center;
}

.certificate-title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
  color: var(--color-text-primary);
}

.certificate-subtitle {
  font-size: 0.875rem;
  color: var(--color-accent-primary);
}

.certificate-issuer {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: var(--spacing-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
}

.certificate-issuer i {
  color: var(--color-accent-secondary);
}

/* ========================================
   EQUIPMENT & MACHINERY SECTION
   ======================================== */
.equipment-section {
  background: linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-bg-dark) 100%);
  position: relative;
  overflow: hidden;
}

.equipment-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('../images/ui/arac.png') center/cover no-repeat;
  opacity: 0.1;
  pointer-events: none;
}

.equipment-card {
  background: rgba(28, 33, 40, 0.9);
  backdrop-filter: blur(10px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  text-align: center;
  transition: all var(--transition-base);
}

.equipment-card:hover {
  transform: translateY(-5px);
  border-color: var(--color-accent-primary);
}

.equipment-icon {
  width: 80px;
  height: 80px;
  background: var(--color-accent-gradient);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-lg);
  font-size: 2rem;
  color: var(--color-bg-dark);
}

.equipment-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.equipment-count {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-accent-primary);
  margin-bottom: var(--spacing-xs);
}

.equipment-desc {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

/* ========================================
   WORLD MAP / GLOBAL PRESENCE
   ======================================== */
.map-section {
  position: relative;
  background: var(--color-bg-dark);
}

.map-container {
  position: relative;
  background: var(--color-bg-card);
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.map-container img {
  width: 100%;
  height: auto;
  opacity: 0.8;
}

.map-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 212, 170, 0.1) 0%, transparent 50%);
}

.country-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  justify-content: center;
  margin-top: var(--spacing-xl);
}

.country-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-2xl);
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  transition: all var(--transition-base);
}

.country-badge:hover {
  border-color: var(--color-accent-primary);
  color: var(--color-accent-primary);
  transform: translateY(-2px);
}

.country-badge i {
  color: var(--color-accent-primary);
}

/* ========================================
   TIMELINE
   ======================================== */
.timeline {
  position: relative;
  padding-left: 50px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
}

.timeline-item {
  position: relative;
  padding-bottom: var(--spacing-2xl);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -38px;
  top: 5px;
  width: 16px;
  height: 16px;
  background: var(--color-accent-primary);
  border-radius: 50%;
  border: 3px solid var(--color-bg-dark);
  box-shadow: 0 0 0 3px var(--color-accent-primary);
}

.timeline-year {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-accent-primary);
  margin-bottom: var(--spacing-xs);
}

.timeline-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
}

.timeline-desc {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
}

/* ========================================
   PARTNERS / CLIENTS SECTION
   ======================================== */
.partners-section {
  background: var(--color-bg-secondary);
  padding: var(--spacing-2xl) 0;
}

.partners-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-2xl);
}

.partner-logo {
  opacity: 0.6;
  filter: grayscale(100%);
  transition: all var(--transition-base);
  max-height: 50px;
}

.partner-logo:hover {
  opacity: 1;
  filter: grayscale(0%);
}

/* ========================================
   FEATURE HIGHLIGHTS
   ======================================== */
.feature-box {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-base);
}

.feature-box::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: conic-gradient(transparent, rgba(0, 212, 170, 0.1), transparent 30%);
  animation: rotate 4s linear infinite;
}

.feature-box-content {
  position: relative;
  z-index: 1;
  background: var(--color-bg-card);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
}

@keyframes rotate {
  100% {
    transform: rotate(1turn);
  }
}

.feature-box:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-glow);
}

.feature-icon {
  width: 70px;
  height: 70px;
  background: rgba(0, 212, 170, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-lg);
  font-size: 1.75rem;
  color: var(--color-accent-primary);
}

/* ========================================
   LIGHTBOX MODAL
   ======================================== */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.95);
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl);
}

.lightbox.active {
  display: flex;
}

.lightbox-content {
  max-width: 90vw;
  max-height: 90vh;
  position: relative;
}

.lightbox-content img {
  max-width: 100%;
  max-height: 85vh;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
}

.lightbox-close {
  position: absolute;
  top: -40px;
  right: 0;
  background: none;
  border: none;
  color: white;
  font-size: 2rem;
  cursor: pointer;
  transition: color var(--transition-base);
}

.lightbox-close:hover {
  color: var(--color-accent-primary);
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  cursor: pointer;
  transition: all var(--transition-base);
}

.lightbox-nav:hover {
  background: var(--color-accent-primary);
  border-color: var(--color-accent-primary);
  color: var(--color-bg-dark);
}

.lightbox-prev { left: -80px; }
.lightbox-next { right: -80px; }

/* ========================================
   ANIMATED COUNTERS
   ======================================== */
.counter-wrapper {
  position: relative;
}

.counter-value {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 800;
  background: var(--color-accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ========================================
   GLOW EFFECTS
   ======================================== */
.glow-card {
  position: relative;
}

.glow-card::before {
  content: '';
  position: absolute;
  inset: -2px;
  background: var(--color-accent-gradient);
  border-radius: inherit;
  z-index: -1;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.glow-card:hover::before {
  opacity: 1;
  filter: blur(10px);
}

/* ========================================
   PROJECT DETAIL MODAL
   ======================================== */
.project-detail {
  background: var(--color-bg-card);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.project-detail-header {
  position: relative;
  height: 300px;
  overflow: hidden;
}

.project-detail-header img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.project-detail-header-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, var(--color-bg-card) 0%, transparent 50%);
}

.project-detail-body {
  padding: var(--spacing-xl);
}

.project-specs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-xl);
}

.project-spec {
  background: var(--color-bg-secondary);
  padding: var(--spacing-md);
  border-radius: var(--radius-lg);
  text-align: center;
}

.project-spec-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-accent-primary);
}

.project-spec-label {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

/* ========================================
   MARQUEE / SCROLLING TEXT
   ======================================== */
.marquee {
  overflow: hidden;
  white-space: nowrap;
  background: var(--color-bg-secondary);
  padding: var(--spacing-lg) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.marquee-content {
  display: inline-block;
  animation: marquee 30s linear infinite;
}

.marquee-item {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-right: var(--spacing-3xl);
  color: var(--color-text-muted);
  font-size: 1.25rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.marquee-item i {
  color: var(--color-accent-primary);
}

@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 992px) {
  .hero {
    padding: 100px 0 60px;
    min-height: auto;
  }
  
  .hero-stats {
    gap: var(--spacing-xl);
  }
  
  .hero-visual {
    margin-top: var(--spacing-2xl);
  }
  
  .floating-card {
    display: none;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-description {
    font-size: 1rem;
  }
  
  .hero-stats {
    flex-wrap: wrap;
    gap: var(--spacing-lg);
  }
  
  .hero-stat {
    flex: 1 1 45%;
  }
  
  .hero-buttons {
    flex-direction: column;
  }
  
  .hero-buttons .btn {
    width: 100%;
    justify-content: center;
  }
  
  .section {
    padding: var(--spacing-2xl) 0;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 576px) {
  .hero-stat-value {
    font-size: 2rem;
  }
  
  .stat-value {
    font-size: 2.5rem;
  }
  
  .navbar-brand {
    font-size: 1.25rem;
  }
  
  .project-gallery {
    grid-template-columns: 1fr;
  }
  
  .project-gallery-thumbs {
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: auto;
  }
  
  .certificates-grid {
    grid-template-columns: 1fr;
  }
  
  .lightbox-nav {
    display: none;
  }
  
  .counter-value {
    font-size: 2.5rem;
  }
}

/* ========================================
   ADDITIONAL UTILITY CLASSES
   ======================================== */
.overflow-hidden { overflow: hidden; }
.position-relative { position: relative; }

.border-accent {
  border-color: var(--color-accent-primary) !important;
}

.bg-gradient-subtle {
  background: linear-gradient(135deg, rgba(0, 212, 170, 0.05) 0%, rgba(8, 145, 178, 0.05) 100%);
}

.hover-lift {
  transition: transform var(--transition-base);
}

.hover-lift:hover {
  transform: translateY(-5px);
}

.text-glow {
  text-shadow: 0 0 20px var(--color-accent-glow);
}

/* Image fit utilities */
.object-cover { object-fit: cover; }
.object-contain { object-fit: contain; }

/* Aspect ratios */
.aspect-video { aspect-ratio: 16/9; }
.aspect-square { aspect-ratio: 1/1; }
.aspect-4-3 { aspect-ratio: 4/3; }

/* Animation delays for stagger effect */
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }

/* Gradient borders */
.gradient-border {
  position: relative;
  background: var(--color-bg-card);
}

.gradient-border::before {
  content: '';
  position: absolute;
  inset: 0;
  padding: 2px;
  background: var(--color-accent-gradient);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  border-radius: inherit;
  pointer-events: none;
}