:root {
  /* Brand Colors */
  --primary-cyan: #00D9FF;
  --secondary-orange: #FF6B35;
  --background-white: #FFFFFF;
  --footer-dark: #1A1A1A;
  --section-light: #F8F9FA;
  --section-white: #FFFFFF;
  --section-gray: #F1F3F4;
  
  /* Neutrals */
  --text-primary: #1A1A1A;
  --text-secondary: #666666;
  --text-muted: #999999;
  --border-black: #000000;
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-secondary: 'Space Grotesk', 'Inter', sans-serif;
  
  /* Spacing Scale */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  
  /* Border Radius */
  --radius-sharp: 0;
  --radius-soft: 4px;
  
  /* Shadows - Bold Offset Style */
  --shadow-offset: 4px 4px 0px #000000;
  --shadow-hover: 6px 6px 0px #000000;
  --shadow-pressed: 2px 2px 0px #000000;
}

/* Base Reset & Typography */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-primary);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--background-white);
  overflow-x: hidden;
}

/* Typography Hierarchy */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-secondary);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

p {
  margin-bottom: var(--space-sm);
  color: var(--text-secondary);
  font-weight: 400;
}

a {
  color: var(--primary-cyan);
  text-decoration: none;
  transition: all 0.2s ease;
}

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

/* Bold & Graphic Layout Elements */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-sm);
}

/* Section Styling with High Contrast */
.section {
  padding: var(--space-3xl) 0;
  position: relative;
}

.section-light {
  background-color: var(--section-light);
  border-top: 3px solid var(--border-black);
  border-bottom: 3px solid var(--border-black);
}

.section-white {
  background-color: var(--section-white);
  border-top: 2px solid var(--section-gray);
  border-bottom: 2px solid var(--section-gray);
}

.section-gray {
  background-color: var(--section-gray);
  border-top: 1px solid var(--text-muted);
  border-bottom: 1px solid var(--text-muted);
}

/* Bold Typography Classes */
.hero-title {
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 900;
  line-height: 0.9;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-lg);
  background: linear-gradient(135deg, var(--primary-cyan), var(--secondary-orange));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
  max-width: 600px;
}

.section-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 800;
  margin-bottom: var(--space-lg);
  position: relative;
  padding-left: var(--space-md);
}

.section-title::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 6px;
  background: linear-gradient(180deg, var(--primary-cyan), var(--secondary-orange));
}

/* Bold & Graphic Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md) var(--space-xl);
  font-family: var(--font-secondary);
  font-size: 1rem;
  font-weight: 700;
  text-decoration: none;
  border: 3px solid var(--border-black);
  cursor: pointer;
  transition: all 0.15s ease;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background-color: var(--primary-cyan);
  color: var(--border-black);
  box-shadow: var(--shadow-offset);
}

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

.btn-primary:active {
  box-shadow: var(--shadow-pressed);
  transform: translate(2px, 2px);
}

.btn-secondary {
  background-color: var(--background-white);
  color: var(--text-primary);
  border: 3px solid var(--border-black);
  box-shadow: var(--shadow-offset);
}

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

.btn-outline {
  background-color: transparent;
  color: var(--primary-cyan);
  border: 3px solid var(--primary-cyan);
  box-shadow: var(--shadow-offset);
}

.btn-outline:hover {
  background-color: var(--primary-cyan);
  color: var(--border-black);
  box-shadow: var(--shadow-hover);
  transform: translate(-2px, -2px);
}

/* Bold Cards with Heavy Borders */
.card {
  background-color: var(--background-white);
  border: 3px solid var(--border-black);
  border-radius: var(--radius-soft);
  padding: var(--space-xl);
  box-shadow: var(--shadow-offset);
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-cyan), var(--secondary-orange));
}

.card:hover {
  box-shadow: var(--shadow-hover);
  transform: translate(-4px, -4px);
}

.card-primary {
  background: linear-gradient(135deg, var(--primary-cyan), var(--secondary-orange));
  color: var(--background-white);
  border-color: var(--border-black);
}

.card-primary:hover {
  box-shadow: 8px 8px 0px #000000;
  transform: translate(-4px, -4px);
}

.card-dark {
  background-color: var(--footer-dark);
  color: var(--background-white);
  border-color: var(--border-black);
}

/* Feature Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
}

.feature-item {
  text-align: center;
  padding: var(--space-xl);
  background-color: var(--section-white);
  border: 2px solid var(--border-black);
  border-radius: var(--radius-sharp);
  box-shadow: var(--shadow-offset);
  transition: all 0.2s ease;
}

.feature-item:hover {
  box-shadow: var(--shadow-hover);
  transform: translate(-3px, -3px);
}

.feature-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-md);
  background: linear-gradient(135deg, var(--primary-cyan), var(--secondary-orange));
  border: 3px solid var(--border-black);
  border-radius: var(--radius-sharp);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: bold;
  color: var(--border-black);
}

/* Navigation */
.nav {
  background-color: var(--background-white);
  border-bottom: 3px solid var(--border-black);
  padding: var(--space-md) 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.nav-logo {
  font-family: var(--font-secondary);
  font-size: 1.75rem;
  font-weight: 900;
  color: var(--text-primary);
  text-decoration: none;
  border: 3px solid var(--border-black);
  padding: var(--space-xs) var(--space-md);
  background-color: var(--primary-cyan);
  box-shadow: var(--shadow-offset);
}

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

.nav-link {
  font-weight: 600;
  padding: var(--space-xs) var(--space-sm);
  border: 2px solid transparent;
  border-radius: var(--radius-soft);
  transition: all 0.2s ease;
}

.nav-link:hover {
  border-color: var(--border-black);
  background-color: var(--section-light);
  box-shadow: 2px 2px 0px #000000;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--section-light) 0%, var(--section-gray) 100%);
  border-bottom: 3px solid var(--border-black);
  padding: var(--space-3xl) 0;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 8px;
  background: linear-gradient(90deg, var(--primary-cyan), var(--secondary-orange), var(--primary-cyan));
}

.hero-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero-cta {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  margin-top: var(--space-xl);
  flex-wrap: wrap;
}

/* Stats Section */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.stat-item {
  text-align: center;
  padding: var(--space-lg);
  background-color: var(--background-white);
  border: 3px solid var(--border-black);
  border-radius: var(--radius-sharp);
  box-shadow: var(--shadow-offset);
  transition: all 0.2s ease;
}

.stat-item:hover {
  transform: translate(-3px, -3px);
  box-shadow: var(--shadow-hover);
}

.stat-number {
  font-size: 3rem;
  font-weight: 900;
  color: var(--primary-cyan);
  display: block;
  margin-bottom: var(--space-xs);
}

.stat-label {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Form Elements */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-input {
  width: 100%;
  padding: var(--space-md);
  border: 3px solid var(--border-black);
  border-radius: var(--radius-soft);
  font-size: 1rem;
  font-family: var(--font-primary);
  background-color: var(--background-white);
  transition: all 0.2s ease;
}

.form-input:focus {
  outline: none;
  border-color: var(--primary-cyan);
  box-shadow: var(--shadow-offset);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

/* Footer */
.footer {
  background-color: var(--footer-dark);
  color: var(--background-white);
  padding: var(--space-2xl) 0 var(--space-lg);
  border-top: 3px solid var(--border-black);
  position: relative;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-cyan), var(--secondary-orange));
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer-section h3 {
  color: var(--primary-cyan);
  margin-bottom: var(--space-md);
  border-bottom: 2px solid var(--primary-cyan);
  padding-bottom: var(--space-xs);
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: var(--space-xs);
}

.footer-section ul li a {
  color: var(--background-white);
  transition: color 0.2s ease;
}

.footer-section ul li a:hover {
  color: var(--primary-cyan);
}

.footer-bottom {
  border-top: 1px solid #444;
  padding-top: var(--space-lg);
  text-align: center;
  color: #999;
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-menu {
    flex-direction: column;
    gap: var(--space-sm);
  }
  
  .hero-cta {
    flex-direction: column;
    align-items: center;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .container {
    padding: 0 var(--space-md);
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .btn {
    width: 100%;
    justify-content: center;
  }
}

/* Animation Classes */
.fade-in {
  animation: fadeIn 0.6s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.slide-up {
  animation: slideUp 0.5s ease-out;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }

.p-0 { padding: 0; }
.p-sm { padding: var(--space-sm); }
.p-md { padding: var(--space-md); }
.p-lg { padding: var(--space-lg); }
.p-xl { padding: var(--space-xl); }

/* Korean Language Support */
.lang-ko {
  font-family: 'Noto Sans KR', 'Apple SD Gothic Neo', 'Malgun Gothic', sans-serif;
}

/* Print Styles */
@media print {
  .nav, .footer {
    display: none;
  }
  
  .btn {
    border: 2px solid #000;
    box-shadow: none;
  }
  
  .card {
    box-shadow: none;
    border: 2px solid #000;
  }
}


/* 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;
    }
}