/* CSS Variables for Dynamic Theming */
:root {
  /* Color System - Neon Cyber Palette */
  --color-primary: #00ffff;
  --color-secondary: #ff00ff;
  --color-accent: #ffffff;
  --color-neon-glow: rgba(0, 255, 255, 0.3);
  --color-neon-glow-pink: rgba(255, 0, 255, 0.3);
  
  /* Background Colors */
  --bg-primary: #0a0a0a;
  --bg-secondary: #0f0f0f;
  --bg-section-1: #1a1a2e;
  --bg-section-2: #16213e;
  --bg-footer: #1a1a1a;
  
  /* Text Colors */
  --text-primary: #ffffff;
  --text-secondary: #cccccc;
  --text-accent: #00ffff;
  
  /* Border & Shadow System - Neo-Brutalist */
  --border-thick: 2px solid #000000;
  --border-medium: 1px solid #333333;
  --shadow-offset: 4px 4px 0 #000000;
  --shadow-hover: 6px 6px 0 #000000;
  --shadow-neon: 0 0 20px var(--color-neon-glow);
  --shadow-neon-pink: 0 0 20px var(--color-neon-glow-pink);
  
  /* Typography System */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'JetBrains Mono', 'Courier New', monospace;
  
  /* Spacing Scale */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  
  /* Border Radius */
  --radius-sharp: 0;
  --radius-soft: 4px;
  --radius-medium: 8px;
  
  /* Transitions */
  --transition-fast: 0.15s ease-out;
  --transition-normal: 0.3s ease-out;
  --transition-slow: 0.5s ease-out;
}

/* Reset and Base Styles */
* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-primary);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Korean-Style Lighting Effects */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 20% 30%, var(--color-neon-glow) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, var(--color-neon-glow-pink) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
  pointer-events: none;
  z-index: -1;
  opacity: 0.3;
  animation: ambient-light 8s ease-in-out infinite alternate;
}

@keyframes ambient-light {
  0% { opacity: 0.2; }
  100% { opacity: 0.4; }
}

/* Typography Hierarchy */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 var(--space-lg) 0;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

h1 {
  font-size: clamp(2.5rem, 8vw, 4rem);
  color: var(--color-primary);
  text-shadow: var(--shadow-neon);
  border-bottom: var(--border-thick);
  padding-bottom: var(--space-md);
}

h2 {
  font-size: clamp(2rem, 6vw, 3rem);
  color: var(--color-secondary);
  text-shadow: var(--shadow-neon-pink);
}

h3 {
  font-size: clamp(1.5rem, 4vw, 2rem);
  color: var(--text-primary);
  border-left: var(--border-thick);
  padding-left: var(--space-md);
}

p {
  margin: 0 0 var(--space-md) 0;
  color: var(--text-secondary);
  max-width: 65ch;
}

/* Neo-Brutalist Button System */
.btn {
  display: inline-block;
  padding: var(--space-md) var(--space-xl);
  font-family: var(--font-display);
  font-weight: 600;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: var(--border-thick);
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  background: transparent;
  font-size: 1rem;
}

.btn-primary {
  background: var(--color-primary);
  color: #000000;
  box-shadow: var(--shadow-offset);
}

.btn-primary:hover {
  background: var(--color-secondary);
  color: #ffffff;
  box-shadow: var(--shadow-hover);
  transform: translate(-2px, -2px);
}

.btn-secondary {
  background: var(--bg-secondary);
  color: var(--color-primary);
  box-shadow: var(--shadow-offset);
}

.btn-secondary:hover {
  background: var(--color-primary);
  color: #000000;
  box-shadow: var(--shadow-hover);
}

/* Card System - Neo-Brutalist with Neon Touches */
.card {
  background: var(--bg-secondary);
  border: var(--border-thick);
  border-radius: var(--radius-sharp);
  padding: var(--space-xl);
  margin: var(--space-lg) 0;
  box-shadow: var(--shadow-offset);
  position: relative;
  transition: all var(--transition-normal);
}

.card:hover {
  box-shadow: var(--shadow-hover);
  transform: translate(-2px, -2px);
}

.card::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(45deg, var(--color-primary), var(--color-secondary));
  z-index: -1;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

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

.card-header {
  border-bottom: var(--border-medium);
  padding-bottom: var(--space-md);
  margin-bottom: var(--space-lg);
}

.card-title {
  color: var(--color-primary);
  font-size: 1.5rem;
  margin: 0;
  text-shadow: var(--shadow-neon);
}

.card-content {
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Section Styling with Distinct Backgrounds */
.section {
  padding: var(--space-3xl) var(--space-lg);
  position: relative;
}

.section:nth-child(odd) {
  background: var(--bg-section-1);
}

.section:nth-child(even) {
  background: var(--bg-section-2);
}

.section-full {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
}

/* Container Overrides for Full-Width Layout */
.container {
  max-width: 100% !important;
  width: 100% !important;
  padding-left: var(--space-lg) !important;
  padding-right: var(--space-lg) !important;
  margin: 0 !important;
}

.container-fluid {
  max-width: 100% !important;
  width: 100% !important;
  padding-left: 0 !important;
  padding-right: 0 !important;
}

/* Grid System Override */
.row {
  margin-left: 0 !important;
  margin-right: 0 !important;
}

.col, .col-1, .col-2, .col-3, .col-4, .col-5, .col-6,
.col-7, .col-8, .col-9, .col-10, .col-11, .col-12 {
  padding-left: var(--space-sm) !important;
  padding-right: var(--space-sm) !important;
}

/* Form Elements - Neo-Brutalist Styling */
input, textarea, select {
  width: 100%;
  padding: var(--space-md);
  background: var(--bg-secondary);
  border: var(--border-thick);
  border-radius: var(--radius-sharp);
  color: var(--text-primary);
  font-family: var(--font-primary);
  font-size: 1rem;
  transition: all var(--transition-fast);
}

input:focus, textarea:focus, select:focus {
  outline: none;
  box-shadow: 0 0 0 3px var(--color-neon-glow);
  border-color: var(--color-primary);
}

label {
  display: block;
  margin-bottom: var(--space-sm);
  color: var(--color-accent);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Navigation - Brutalist with Neon Accent */
.nav {
  background: var(--bg-footer);
  border-bottom: var(--border-thick);
  padding: var(--space-md) 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-offset);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 100%;
  padding: 0 var(--space-lg);
  width: 100%;
}

.nav-brand {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  text-shadow: var(--shadow-neon);
  text-transform: uppercase;
}

.nav-menu {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: var(--space-lg);
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 600;
  padding: var(--space-sm) var(--space-md);
  border: var(--border-medium);
  border-radius: var(--radius-soft);
  transition: all var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-primary);
  background: var(--bg-secondary);
  box-shadow: 0 2px 0 var(--color-primary);
}

/* Hero Section */
.hero {
  background: var(--bg-primary);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  border-bottom: var(--border-thick);
}

.hero-content {
  max-width: 800px;
  padding: var(--space-2xl);
  background: rgba(15, 15, 15, 0.8);
  border: var(--border-thick);
  border-radius: var(--radius-soft);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-offset);
}

.hero-title {
  font-size: clamp(3rem, 10vw, 6rem);
  margin-bottom: var(--space-xl);
  line-height: 1.1;
}

.hero-subtitle {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
}

.hero-cta {
  display: flex;
  gap: var(--space-lg);
  justify-content: center;
  flex-wrap: wrap;
}

/* Footer */
.footer {
  background: var(--bg-footer);
  border-top: var(--border-thick);
  padding: var(--space-2xl) 0;
  text-align: center;
}

.footer-content {
  max-width: 100%;
  width: 100%;
  padding: 0 var(--space-lg);
}

.footer-text {
  color: var(--text-secondary);
  margin: 0;
  font-size: 0.9rem;
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

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

.bg-primary { background: var(--bg-primary); }
.bg-secondary { background: var(--bg-secondary); }
.bg-section-1 { background: var(--bg-section-1); }
.bg-section-2 { background: var(--bg-section-2); }

.border-thick { border: var(--border-thick); }
.border-medium { border: var(--border-medium); }

.shadow-offset { box-shadow: var(--shadow-offset); }
.shadow-neon { box-shadow: var(--shadow-neon); }
.shadow-hover { box-shadow: var(--shadow-hover); }

/* Responsive Design */
@media (max-width: 768px) {
  :root {
    --space-3xl: 2rem;
    --space-2xl: 1.5rem;
    --space-xl: 1rem;
  }
  
  .hero-cta {
    flex-direction: column;
    align-items: center;
  }
  
  .nav-menu {
    flex-direction: column;
    gap: var(--space-sm);
  }
  
  .nav-container {
    flex-direction: column;
    gap: var(--space-md);
  }
  
  .card {
    padding: var(--space-lg);
    margin: var(--space-md) 0;
  }
  
  h1 { font-size: 2.5rem; }
  h2 { font-size: 2rem; }
  h3 { font-size: 1.5rem; }
}

@media (max-width: 480px) {
  .section {
    padding: var(--space-2xl) var(--space-md);
  }
  
  .container, .container-fluid {
    padding-left: var(--space-md) !important;
    padding-right: var(--space-md) !important;
  }
  
  .card {
    padding: var(--space-md);
  }
  
  .btn {
    width: 100%;
    text-align: center;
  }
}

/* Animation for Loading States */
@keyframes neon-pulse {
  0%, 100% { 
    text-shadow: var(--shadow-neon);
    opacity: 1;
  }
  50% { 
    text-shadow: 0 0 30px var(--color-neon-glow), 0 0 40px var(--color-neon-glow);
    opacity: 0.8;
  }
}

.neon-pulse {
  animation: neon-pulse 2s ease-in-out infinite;
}

/* Korean-style minimal clean effects */
.glass-effect {
  background: rgba(26, 26, 46, 0.3);
  border: var(--border-medium);
  border-radius: var(--radius-soft);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

/* Accessibility Improvements */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus styles for better accessibility */
*:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

button:focus, 
.btn:focus {
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
}


/* Cookie Banner Additional Styles for Tailwind */
.cookie-banner-hover-effect:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

@media (prefers-reduced-motion: reduce) {
    .cookie-banner-hover-effect:hover {
        transform: none;
    }
}