:root {
  /* Typography */
  --primary-font: 'Lora', serif;
  --secondary-font: 'Source Sans Pro', sans-serif;
  
  /* Enhanced Color Palette */
  --primary-color: #0f172a;
  --secondary-color: #1e293b;
  --accent-color: #3b82f6;
  --accent-secondary: #8b5cf6;
  --accent-tertiary: #06b6d4;
  
  /* Background & Surfaces */
  --background-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 25%, #f093fb 50%, #f5576c 75%, #4facfe 100%);
  --background-overlay: rgba(255, 255, 255, 0.95);
  --card-background: rgba(255, 255, 255, 0.85);
  --card-background-hover: rgba(255, 255, 255, 0.95);
  --glassmorphism-bg: rgba(255, 255, 255, 0.1);
  --glassmorphism-border: rgba(255, 255, 255, 0.2);
  
  /* Text Colors */
  --text-color: #1f2937;
  --text-secondary: #4b5563;
  --text-muted: #6b7280;
  --text-accent: var(--accent-color);
  
  /* UI Elements */
  --border-color: rgba(229, 231, 235, 0.8);
  --border-accent: rgba(59, 130, 246, 0.3);
  --error-color: #ef4444;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  
  /* Shadows & Effects */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-colored: 0 20px 25px -5px rgba(59, 130, 246, 0.1), 0 10px 10px -5px rgba(59, 130, 246, 0.04);
  
  /* Animation & Transitions */
  --animation-duration: 0.3s;
  --animation-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
  --animation-smooth: cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
}

/* Global Styles & Reset */
* {
  box-sizing: border-box;
}

::selection {
  background-color: rgba(59, 130, 246, 0.2);
  color: var(--primary-color);
}

/* Enhanced Animations */
@keyframes fadeIn {
  from { 
    opacity: 0; 
    transform: translateY(20px) scale(0.98);
  }
  to { 
    opacity: 1; 
    transform: translateY(0) scale(1);
  }
}

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

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

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

@keyframes pulse {
  0%, 100% { 
    transform: scale(1); 
    opacity: 1;
  }
  50% { 
    transform: scale(1.05); 
    opacity: 0.9;
  }
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}

@keyframes glow {
  0%, 100% { box-shadow: 0 0 20px rgba(59, 130, 246, 0.3); }
  50% { box-shadow: 0 0 40px rgba(59, 130, 246, 0.5), 0 0 60px rgba(59, 130, 246, 0.2); }
}

@keyframes shimmer {
  0% { background-position: -200px 0; }
  100% { background-position: calc(200px + 100%) 0; }
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes ripple {
  0% {
    transform: scale(0);
    opacity: 0.6;
  }
  100% {
    transform: scale(4);
    opacity: 0;
  }
}

/* Animation Classes */
.animated {
  animation: fadeIn 0.8s var(--animation-smooth) forwards;
}

.fade-in-up {
  animation: fadeInUp 0.8s var(--animation-smooth) forwards;
}

.slide-in-left {
  animation: slideInLeft 0.8s var(--animation-smooth) forwards;
}

.slide-in-right {
  animation: slideInRight 0.8s var(--animation-smooth) forwards;
}

.float-animation {
  animation: float 3s ease-in-out infinite;
}

/* Glassmorphism Components */
.glass-card {
  background: var(--glassmorphism-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glassmorphism-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
}

.glass-button {
  background: var(--glassmorphism-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glassmorphism-border);
  transition: all var(--animation-duration) var(--animation-smooth);
}

.glass-button:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Enhanced Button Styles */
.share-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  border-radius: var(--radius-xl);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--animation-duration) var(--animation-bounce);
  border: 2px solid var(--border-color);
  color: var(--text-color);
  background: var(--card-background);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow-md);
  transform-origin: center;
}

.share-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  transition: left 0.5s ease;
}

.share-link:hover::before {
  left: 100%;
}

.share-link:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: var(--shadow-xl);
  border-color: var(--accent-color);
}

.share-link:active {
  transform: translateY(-2px) scale(0.98);
  transition: all 0.1s ease;
}

.share-link::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(59, 130, 246, 0.3);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.3s ease, height 0.3s ease;
}

.share-link:hover::after {
  width: 300px;
  height: 300px;
}

/* Specialized Share Button Styles */
.share-link.x:hover {
  background: linear-gradient(135deg, #000000, #1a1a1a);
  color: white;
  border-color: #000000;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.share-link.linkedin:hover {
  background: linear-gradient(135deg, #0077b5, #005885);
  color: white;
  border-color: #0077b5;
  box-shadow: 0 10px 25px rgba(0, 119, 181, 0.3);
}

.share-link.email:hover {
  background: linear-gradient(135deg, var(--accent-color), var(--accent-secondary));
  color: white;
  border-color: var(--accent-color);
  box-shadow: var(--shadow-colored);
}

/* Enhanced Card Styles with Glassmorphism */
.guideline-card {
  background: var(--card-background);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-lg);
  padding: var(--space-2xl) var(--space-xl);
  display: flex;
  flex-direction: column;
  border: 2px solid var(--border-color);
  transition: all 0.4s var(--animation-bounce);
  position: relative;
  overflow: hidden;
  transform-origin: center;
}

.guideline-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-color), var(--accent-secondary), var(--accent-tertiary));
  background-size: 200% 100%;
  animation: gradientShift 3s ease infinite;
  opacity: 0;
  transition: opacity 0.3s ease;
}

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

.guideline-card:hover {
  transform: translateY(-12px) scale(1.02);
  box-shadow: var(--shadow-2xl);
  border-color: var(--border-accent);
  background: var(--card-background-hover);
}

.guideline-card .card-icon {
  transition: all 0.4s var(--animation-bounce);
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
}

.guideline-card:hover .card-icon {
  transform: scale(1.15) rotate(5deg);
  filter: drop-shadow(0 8px 16px rgba(0, 0, 0, 0.15));
}

/* Card Header Enhancement */
.card-header {
  display: flex;
  align-items: center;
  margin-bottom: var(--space-lg);
  position: relative;
}

.card-icon {
  font-size: 2.5em;
  margin-right: var(--space-lg);
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(139, 92, 246, 0.1));
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.card-title h2 {
  font-family: var(--primary-font);
  margin: 0;
  font-size: 1.6em;
  font-weight: 700;
  color: var(--primary-color);
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Content Enhancement */
.guideline-card p {
  margin-bottom: var(--space-lg);
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.7;
  font-weight: 400;
}

.example-bad {
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.05), rgba(239, 68, 68, 0.1));
  padding: var(--space-md) var(--space-lg);
  border-left: 4px solid var(--error-color);
  margin-top: var(--space-md);
  font-size: 0.95em;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  position: relative;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.example-bad:hover {
  transform: translateX(8px);
  box-shadow: var(--shadow-md);
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.1), rgba(239, 68, 68, 0.15));
}

.example-bad:not(:last-child) {
  margin-bottom: var(--space-md);
}

.example-bad::before {
  content: '⚠️';
  position: absolute;
  left: -12px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--error-color);
  color: white;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  box-shadow: var(--shadow-sm);
}

/* Enhanced Team Challenge Section */
.team-challenge-section {
  margin: var(--space-2xl) 0;
  padding: var(--space-2xl);
  background: var(--card-background);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-xl);
  border: 2px solid var(--border-color);
  position: relative;
  overflow: hidden;
}

.team-challenge-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 6px;
  background: linear-gradient(90deg, var(--accent-color), var(--accent-secondary), var(--accent-tertiary), var(--accent-color));
  background-size: 300% 100%;
  animation: gradientShift 4s ease infinite;
}

.team-challenge-section::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.03) 0%, transparent 70%);
  animation: float 6s ease-in-out infinite;
}

.challenge-container {
  position: relative;
  z-index: 1;
}

.team-challenge-section h2 {
  font-family: var(--primary-font);
  font-size: 2.5em;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: var(--space-lg);
  text-align: center;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.challenge-intro {
  text-align: center;
  font-size: 1.3em;
  max-width: 700px;
  margin: 0 auto var(--space-2xl);
  color: var(--text-secondary);
  line-height: 1.6;
  font-weight: 400;
}

.challenge-steps {
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: var(--space-xl);
  margin: var(--space-2xl) 0;
}

.challenge-step {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  animation: fadeInUp 0.8s var(--animation-smooth) forwards;
  animation-delay: calc(0.2s * var(--i, 0));
  opacity: 0;
  padding: var(--space-lg);
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glassmorphism-border);
  transition: all 0.3s ease;
}

.challenge-step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0.1));
}

.challenge-step:nth-child(1) { --i: 0; }
.challenge-step:nth-child(2) { --i: 1; }
.challenge-step:nth-child(3) { --i: 2; }

.step-number {
  width: 45px;
  height: 45px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-color), var(--accent-secondary));
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.3em;
  box-shadow: var(--shadow-md);
  transition: all 0.3s var(--animation-bounce);
}

.challenge-step:hover .step-number {
  transform: scale(1.1);
  animation: glow 2s ease-in-out infinite;
}

.challenge-step p {
  margin: 0;
  font-weight: 600;
  color: var(--text-color);
  font-size: 1.1rem;
}

.challenge-cta {
  text-align: center;
  margin-top: var(--space-2xl);
}

.challenge-button {
  display: inline-block;
  padding: var(--space-lg) var(--space-2xl);
  background: linear-gradient(135deg, var(--accent-color), var(--accent-secondary));
  color: white;
  border-radius: var(--radius-2xl);
  text-decoration: none;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: all var(--animation-duration) var(--animation-bounce);
  font-size: 1.1em;
  box-shadow: var(--shadow-colored);
  position: relative;
  overflow: hidden;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.challenge-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s ease;
}

.challenge-button:hover::before {
  left: 100%;
}

.challenge-button:hover {
  transform: translateY(-4px) scale(1.05);
  box-shadow: 0 20px 40px rgba(59, 130, 246, 0.4);
  animation: glow 2s ease-in-out infinite;
}

.challenge-button:active {
  transform: translateY(-2px) scale(1.02);
}

/* Enhanced Body and Layout */
body {
  font-family: var(--secondary-font);
  margin: 0;
  padding: var(--space-2xl) var(--space-lg);
  background: var(--background-gradient);
  background-size: 400% 400%;
  animation: gradientShift 15s ease infinite;
  color: var(--text-color);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  position: relative;
  min-height: 100vh;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--background-overlay);
  backdrop-filter: blur(60px);
  -webkit-backdrop-filter: blur(60px);
  z-index: -1;
}

.container {
  max-width: 1400px;
  margin: auto;
  position: relative;
  z-index: 1;
}

/* Enhanced Header */
header {
  text-align: center;
  margin-bottom: var(--space-2xl);
  position: relative;
  padding: var(--space-2xl) 0;
}

.github-button-container {
  position: absolute;
  top: 0;
  right: 0;
  z-index: 10;
}

.github-button {
  transition: all 0.3s ease;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.github-button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

h1 {
  font-family: var(--primary-font);
  color: var(--primary-color);
  font-size: 4rem;
  font-weight: 700;
  margin-bottom: var(--space-lg);
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  position: relative;
}

h1::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-color), var(--accent-secondary));
  border-radius: var(--radius-sm);
}

.intro {
  font-size: 1.3em;
  font-weight: 400;
  color: var(--text-secondary);
  max-width: 900px;
  margin: 0 auto var(--space-2xl);
  line-height: 1.8;
  background: var(--card-background);
  padding: var(--space-xl);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
}

/* Enhanced Grid Layout */
.guidelines-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

/* Enhanced Typography */
.card-header {
  display: flex;
  align-items: center;
  margin-bottom: var(--space-lg);
}

.guideline-card p {
  margin-bottom: var(--space-lg);
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.7;
}

/* Enhanced Footer */
footer {
  text-align: center;
  margin-top: var(--space-2xl);
  padding: var(--space-xl);
  border-top: 2px solid var(--border-color);
  font-size: 1rem;
  color: var(--text-muted);
  background: var(--card-background);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-md);
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
  max-width: 600px;
  margin: 0 auto;
}

.footer-main {
  margin: 0;
  font-size: 1.1rem;
  color: var(--text-secondary);
  font-weight: 400;
}

.author-link {
  color: var(--accent-color);
  text-decoration: none;
  font-weight: 700;
  transition: all 0.3s var(--animation-smooth);
  position: relative;
  background: linear-gradient(135deg, var(--accent-color), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.author-link:hover {
  transform: translateY(-1px);
  filter: brightness(1.2);
}

.footer-links {
  display: flex;
  gap: var(--space-xl);
  flex-wrap: wrap;
  justify-content: center;
}

.footer-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-xl);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--animation-duration) var(--animation-bounce);
  border: 2px solid var(--border-color);
  color: var(--text-color);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}

.footer-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s ease;
}

.footer-link:hover::before {
  left: 100%;
}

.footer-link:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-color);
}

.footer-link.github-link:hover {
  background: linear-gradient(135deg, #24292e, #1a1e22);
  color: white;
  border-color: #24292e;
}

.footer-link.website-link:hover {
  background: linear-gradient(135deg, var(--accent-color), var(--accent-secondary));
  color: white;
  border-color: var(--accent-color);
}

.link-icon {
  font-size: 1.1em;
  transition: transform 0.3s ease;
}

.footer-link:hover .link-icon {
  transform: scale(1.2);
}

/* Responsive Footer */
@media (max-width: 768px) {
  footer {
    padding: var(--space-lg);
  }
  
  .footer-content {
    gap: var(--space-md);
  }
  
  .footer-links {
    flex-direction: column;
    gap: var(--space-md);
    width: 100%;
  }
  
  .footer-link {
    justify-content: center;
    width: 100%;
    max-width: 280px;
  }
  
  .footer-main {
    font-size: 1rem;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .footer-main {
    font-size: 0.95rem;
  }
  
  .footer-link {
    font-size: 0.9rem;
    padding: var(--space-sm) var(--space-md);
  }
}

/* Enhanced Share Section */
.share-section {
  background: var(--card-background);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-xl);
  padding: var(--space-2xl);
  text-align: center;
  margin: var(--space-2xl) 0;
  border: 2px solid var(--border-color);
  position: relative;
  overflow: hidden;
}

.share-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.05) 0%, transparent 70%);
  animation: float 8s ease-in-out infinite;
}

.share-section h3 {
  font-family: var(--primary-font);
  color: var(--primary-color);
  margin-bottom: var(--space-lg);
  font-size: 1.8em;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
  z-index: 1;
}

.share-section p {
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
  font-size: 1.1em;
  font-weight: 400;
  position: relative;
  z-index: 1;
}

.share-buttons {
  display: flex;
  gap: var(--space-lg);
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

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

/* Focus Styles for Accessibility */
.share-link:focus,
.challenge-button:focus,
.github-button:focus {
  outline: 3px solid var(--accent-color);
  outline-offset: 2px;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.3);
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
  :root {
    --text-color: #000000;
    --text-secondary: #333333;
    --border-color: #666666;
    --accent-color: #0066cc;
  }
}

/* Enhanced Responsive Design */
@media (max-width: 1200px) {
  .guidelines-grid {
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-xl);
  }
  
  h1 {
    font-size: 3.5rem;
  }
}

@media (max-width: 768px) {
  body {
    padding: var(--space-xl) var(--space-md);
  }
  
  h1 {
    font-size: 2.8rem;
    margin-bottom: var(--space-md);
  }
  
  .intro {
    font-size: 1.1em;
    padding: var(--space-lg);
    margin-bottom: var(--space-xl);
  }
  
  .guidelines-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
  }
  
  .guideline-card {
    padding: var(--space-xl) var(--space-lg);
  }
  
  .card-icon {
    font-size: 2.2em;
    width: 50px;
    height: 50px;
    margin-right: var(--space-md);
  }
  
  .card-title h2 {
    font-size: 1.4em;
  }
  
  .challenge-steps {
    flex-direction: column;
    align-items: center;
    gap: var(--space-lg);
  }
  
  .challenge-step {
    max-width: 320px;
    flex-direction: column;
    text-align: center;
    padding: var(--space-lg);
  }
  
  .step-number {
    margin-bottom: var(--space-sm);
  }
  
  .team-challenge-section,
  .share-section {
    padding: var(--space-xl) var(--space-lg);
    margin: var(--space-xl) 0;
  }
  
  .team-challenge-section h2 {
    font-size: 2.2em;
  }
  
  .challenge-intro {
    font-size: 1.2em;
    margin-bottom: var(--space-xl);
  }
  
  .challenge-button {
    padding: var(--space-md) var(--space-xl);
    font-size: 1rem;
  }
  
  .share-buttons {
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
  }
  
  .share-link {
    width: 100%;
    max-width: 250px;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  body {
    padding: var(--space-lg) var(--space-sm);
  }
  
  h1 {
    font-size: 2.2rem;
  }
  
  .intro {
    font-size: 1rem;
    padding: var(--space-md);
  }
  
  .guideline-card {
    padding: var(--space-lg) var(--space-md);
  }
  
  .card-header {
    flex-direction: column;
    text-align: center;
    gap: var(--space-sm);
  }
  
  .card-icon {
    margin-right: 0;
    margin-bottom: var(--space-sm);
  }
  
  .team-challenge-section h2 {
    font-size: 1.8em;
  }
  
  .challenge-intro {
    font-size: 1.1em;
  }
  
  .github-button-container {
    position: relative;
    top: auto;
    right: auto;
    text-align: center;
    margin-bottom: var(--space-lg);
  }
}

/* Print Styles */
@media print {
  body {
    background: white;
    color: black;
  }
  
  .share-section,
  .challenge-button,
  .github-button-container {
    display: none;
  }
  
  .guideline-card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ccc;
  }
}

/* Touch Device Optimization */
@media (hover: none) and (pointer: coarse) {
  .share-link,
  .challenge-button {
    min-height: 48px;
    min-width: 48px;
  }
  
  .guideline-card:hover {
    transform: none;
  }
  
  .share-link:hover {
    transform: none;
  }
}

/* Dark Mode Support (Future Enhancement) */
@media (prefers-color-scheme: dark) {
  :root {
    --primary-color: #f1f5f9;
    --secondary-color: #e2e8f0;
    --text-color: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --card-background: rgba(15, 23, 42, 0.8);
    --card-background-hover: rgba(15, 23, 42, 0.9);
    --background-overlay: rgba(15, 23, 42, 0.95);
    --border-color: rgba(71, 85, 105, 0.8);
  }
}