:root {
  /* Cosmic Soft Color Palette */
  --cosmic-primary: #6366f1;
  --cosmic-secondary: #8b5cf6;
  --cosmic-accent: #06b6d4;
  --cosmic-pink: #ec4899;
  --cosmic-orange: #f59e0b;
  --cosmic-purple-deep: #581c87;
  --cosmic-blue-deep: #1e3a8a;
  --cosmic-bg-dark: #0c0a09;
  --cosmic-bg-light: #fafaf9;
  --cosmic-text-dark: #1c1917;
  --cosmic-text-light: #f5f5f4;
  
  /* Soft Gradients */
  --gradient-cosmic: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-planet: linear-gradient(45deg, #ff6b6b, #feca57, #48dbfb, #ff9ff3);
  --gradient-space: linear-gradient(to bottom, #667eea 0%, #764ba2 50%, #2d1b69 100%);
  --gradient-earth: linear-gradient(135deg, #667eea 0%, #06b6d4 100%);
  --gradient-mars: linear-gradient(135deg, #ff6b6b 0%, #ee5a24 100%);
  --gradient-moon: linear-gradient(135deg, #f8f9fa 0%, #dee2e6 100%);
  --gradient-jupiter: linear-gradient(135deg, #ffeaa7 0%, #fab1a0 100%);
  --gradient-stars: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  
  /* Soft Shadows */
  --shadow-soft: 0 10px 30px -10px rgba(102, 126, 234, 0.25);
  --shadow-cosmic: 0 20px 40px -15px rgba(139, 92, 246, 0.3);
  --shadow-float: 0 25px 50px -20px rgba(6, 182, 212, 0.25);
  --shadow-warm: 0 15px 35px -10px rgba(236, 72, 153, 0.25);
  
  /* Typography */
  --font-primary: 'Nunito', 'Comic Sans MS', sans-serif;
  --font-display: 'Space Grotesk', 'Nunito', sans-serif;
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  
  /* Border Radius */
  --radius-soft: 16px;
  --radius-round: 24px;
  --radius-pill: 50px;
  
  /* Animations */
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-primary);
  line-height: 1.7;
  color: var(--cosmic-text-dark);
  background: linear-gradient(135deg, 
    rgba(102, 126, 234, 0.05) 0%, 
    rgba(139, 92, 246, 0.05) 50%, 
    rgba(6, 182, 212, 0.05) 100%);
  min-height: 100vh;
  overflow-x: hidden;
}

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

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  background: var(--gradient-cosmic);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 4px 8px rgba(102, 126, 234, 0.2);
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--cosmic-blue-deep);
}

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

p {
  font-size: 1.125rem;
  margin-bottom: var(--space-sm);
  color: var(--cosmic-text-dark);
}

/* Cosmic Background Pattern */
.cosmic-background {
  position: relative;
  background: linear-gradient(135deg, 
    rgba(102, 126, 234, 0.1) 0%, 
    rgba(139, 92, 246, 0.1) 25%,
    rgba(6, 182, 212, 0.1) 50%,
    rgba(236, 72, 153, 0.1) 75%,
    rgba(245, 158, 11, 0.1) 100%);
  overflow: hidden;
}

.cosmic-background::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    radial-gradient(circle at 20% 50%, rgba(102, 126, 234, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 40% 80%, rgba(6, 182, 212, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 90% 90%, rgba(236, 72, 153, 0.1) 0%, transparent 50%);
  z-index: -1;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* Navigation */
.navbar {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-radius: var(--radius-soft);
  margin: var(--space-md);
  padding: var(--space-sm) var(--space-lg);
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.nav-brand {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--gradient-cosmic);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-decoration: none;
}

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

.nav-links a {
  text-decoration: none;
  color: var(--cosmic-text-dark);
  font-weight: 600;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-pill);
  transition: var(--transition-smooth);
  position: relative;
}

.nav-links a:hover {
  color: var(--cosmic-primary);
  background: rgba(102, 126, 234, 0.1);
  transform: translateY(-2px);
}

/* Hero Section */
.hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-2xl) var(--space-lg);
  background: var(--gradient-space);
  border-radius: var(--radius-round);
  margin: var(--space-lg);
  color: white;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: 
    radial-gradient(circle at 30% 70%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 70% 30%, rgba(255, 255, 255, 0.05) 0%, transparent 50%);
  animation: float 20s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  33% { transform: translate(30px, -30px) rotate(120deg); }
  66% { transform: translate(-20px, 20px) rotate(240deg); }
}

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

.hero h1 {
  color: white;
  font-size: clamp(3rem, 6vw, 5rem);
  margin-bottom: var(--space-md);
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  background: white;
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: var(--space-sm) var(--space-xl);
  border-radius: var(--radius-pill);
  text-decoration: none;
  font-weight: 600;
  font-family: var(--font-primary);
  transition: var(--transition-bounce);
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  font-size: 1.1rem;
}

.btn-primary {
  background: var(--gradient-cosmic);
  color: white;
  box-shadow: var(--shadow-cosmic);
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 25px 50px -15px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
  background: var(--gradient-planet);
  color: white;
  box-shadow: var(--shadow-warm);
}

.btn-secondary:hover {
  transform: translateY(-3px) scale(1.05);
}

.btn-outline {
  background: transparent;
  color: var(--cosmic-primary);
  border: 2px solid var(--cosmic-primary);
}

.btn-outline:hover {
  background: var(--cosmic-primary);
  color: white;
  transform: translateY(-3px);
}

/* Planet Cards */
.planet-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
  padding: var(--space-2xl) var(--space-lg);
}

.planet-card {
  background: white;
  border-radius: var(--radius-round);
  padding: var(--space-xl);
  box-shadow: var(--shadow-soft);
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(102, 126, 234, 0.1);
}

.planet-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-float);
}

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

.planet-emoji {
  font-size: 4rem;
  margin-bottom: var(--space-md);
  display: block;
  text-align: center;
  filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.1));
}

.planet-card h3 {
  font-size: 1.75rem;
  margin-bottom: var(--space-sm);
  text-align: center;
}

.planet-card p {
  text-align: center;
  color: #6b7280;
  line-height: 1.6;
}

/* Specific Planet Styling */
.planet-card.sun { background: var(--gradient-earth); color: white; }
.planet-card.sun h3 { color: white; }
.planet-card.sun p { color: rgba(255, 255, 255, 0.9); }
.planet-card.sun::before { background: var(--gradient-mars); }

.planet-card.moon { background: var(--gradient-moon); }
.planet-card.jupiter { background: var(--gradient-jupiter); }
.planet-card.mercury { background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%); }
.planet-card.venus { background: linear-gradient(135deg, #ffeaa7 0%, #fab1a0 100%); }
.planet-card.mars { background: var(--gradient-mars); color: white; }
.planet-card.mars h3 { color: white; }
.planet-card.mars p { color: rgba(255, 255, 255, 0.9); }
.planet-card.earth { background: var(--gradient-earth); color: white; }
.planet-card.earth h3 { color: white; }
.planet-card.earth p { color: rgba(255, 255, 255, 0.9); }
.planet-card.saturn { background: linear-gradient(135deg, #ffeaa7 0%, #e17055 100%); }
.planet-card.uranus { background: linear-gradient(135deg, #74b9ff 0%, #0984e3 100%); color: white; }
.planet-card.uranus h3 { color: white; }
.planet-card.uranus p { color: rgba(255, 255, 255, 0.9); }
.planet-card.neptune { background: linear-gradient(135deg, #a29bfe 0%, #6c5ce7 100%); color: white; }
.planet-card.neptune h3 { color: white; }
.planet-card.neptune p { color: rgba(255, 255, 255, 0.9); }

/* Info Sections */
.info-section {
  background: white;
  border-radius: var(--radius-round);
  padding: var(--space-2xl);
  margin: var(--space-xl);
  box-shadow: var(--shadow-soft);
  position: relative;
  overflow: hidden;
}

.info-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: var(--gradient-cosmic);
}

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

.info-box {
  background: rgba(102, 126, 234, 0.05);
  border-radius: var(--radius-soft);
  padding: var(--space-lg);
  border-left: 4px solid var(--cosmic-primary);
}

.info-box h4 {
  color: var(--cosmic-purple-deep);
  margin-bottom: var(--space-sm);
  font-size: 1.25rem;
}

.info-box p {
  font-size: 1rem;
  color: #6b7280;
  margin-bottom: 0;
}

/* Fun Facts */
.fun-facts {
  background: var(--gradient-cosmic);
  color: white;
  border-radius: var(--radius-round);
  padding: var(--space-2xl);
  margin: var(--space-xl);
  position: relative;
  overflow: hidden;
}

.fun-facts::before {
  content: '⭐';
  position: absolute;
  top: var(--space-lg);
  right: var(--space-lg);
  font-size: 3rem;
  opacity: 0.2;
  animation: twinkle 3s ease-in-out infinite;
}

@keyframes twinkle {
  0%, 100% { opacity: 0.2; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.1); }
}

.fun-facts h3 {
  color: white;
  text-align: center;
  margin-bottom: var(--space-xl);
  font-size: 2rem;
}

.facts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-lg);
}

.fact-item {
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-soft);
  padding: var(--space-lg);
  text-align: center;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.fact-item .emoji {
  font-size: 2.5rem;
  display: block;
  margin-bottom: var(--space-sm);
}

.fact-item p {
  color: white;
  font-size: 0.95rem;
  margin: 0;
}

/* Language Toggle */
.language-toggle {
  position: fixed;
  top: var(--space-lg);
  right: var(--space-lg);
  z-index: 1000;
}

.lang-btn {
  background: white;
  border: 2px solid var(--cosmic-primary);
  color: var(--cosmic-primary);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-pill);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-smooth);
  font-size: 0.9rem;
}

.lang-btn:hover,
.lang-btn.active {
  background: var(--cosmic-primary);
  color: white;
  transform: scale(1.05);
}

/* Footer */
.footer {
  background: var(--cosmic-purple-deep);
  color: white;
  padding: var(--space-2xl) var(--space-lg);
  margin-top: var(--space-2xl);
  border-radius: var(--radius-round) var(--radius-round) 0 0;
  text-align: center;
}

.footer p {
  color: rgba(255, 255, 255, 0.8);
  margin: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
  .container {
    padding: 0 var(--space-sm);
  }
  
  .navbar {
    flex-direction: column;
    gap: var(--space-sm);
    text-align: center;
  }
  
  .nav-links {
    flex-direction: column;
    gap: var(--space-xs);
  }
  
  .hero {
    margin: var(--space-sm);
    padding: var(--space-xl) var(--space-sm);
    min-height: 60vh;
  }
  
  .planet-grid {
    grid-template-columns: 1fr;
    padding: var(--space-lg) var(--space-sm);
    gap: var(--space-lg);
  }
  
  .info-section {
    margin: var(--space-sm);
    padding: var(--space-lg);
  }
  
  .fun-facts {
    margin: var(--space-sm);
    padding: var(--space-lg);
  }
  
  .facts-grid {
    grid-template-columns: 1fr;
  }
  
  .language-toggle {
    position: static;
    text-align: center;
    margin: var(--space-md) 0;
  }
}

@media (max-width: 480px) {
  .planet-card {
    padding: var(--space-lg);
  }
  
  .planet-emoji {
    font-size: 3rem;
  }
  
  .info-section,
  .fun-facts {
    padding: var(--space-md);
  }
}

/* Loading Animation */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(102, 126, 234, 0.3);
  border-radius: 50%;
  border-top-color: var(--cosmic-primary);
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Hover Effects for Interactive Elements */
.interactive:hover {
  cursor: pointer;
  transform: translateY(-5px);
  transition: var(--transition-smooth);
}

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

/* Focus states for better accessibility */
a:focus,
button:focus,
.lang-btn:focus {
  outline: 2px solid var(--cosmic-accent);
  outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .btn-primary,
  .btn-secondary {
    border: 2px solid currentColor;
  }
}


/* 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;
    }
}