/* Cosmos Connect - Main CSS */

/* CSS Custom Properties */
:root {
  /* Enhanced NASA-inspired Space Theme Colors */
  --space-black: #0a0a0f;
  --deep-space: #1a1a2e;
  --nebula-blue: #16213e;
  --star-white: #ffffff;
  --solar-orange: #ff6b35;
  --mars-red: #cd5c5c;
  --earth-blue: #4a90e2;
  --cosmic-purple: #6c5ce7;
  --saturn-gold: #fdcb6e;
  
  /* Enhanced Color Palette */
  --aurora-green: #00ff87;
  --comet-cyan: #00d4ff;
  --supernova-pink: #ff3366;
  --galaxy-violet: #8b5cf6;
  --asteroid-orange: #ff8c42;
  --moonlight-silver: #e2e8f0;
  --cosmic-teal: #14b8a6;
  --nebula-indigo: #4f46e5;
  
  /* Semantic Colors */
  --success: var(--aurora-green);
  --warning: var(--saturn-gold);
  --error: var(--supernova-pink);
  --info: var(--comet-cyan);
  
  /* Additional Mars Weather Colors */
  --text-mars-red: #cd5c5c;
  
  /* Enhanced Glass Morphism Colors */
  --glass-bg: rgba(255, 255, 255, 0.08);
  --glass-bg-light: rgba(255, 255, 255, 0.12);
  --glass-bg-strong: rgba(255, 255, 255, 0.15);
  --glass-border: rgba(255, 255, 255, 0.15);
  --glass-border-strong: rgba(255, 255, 255, 0.25);
  --glass-shadow: rgba(0, 0, 0, 0.3);
  --glass-shadow-strong: rgba(0, 0, 0, 0.5);
  
  /* Enhanced Spacing Scale */
  --space-px: 1px;
  --space-0: 0;
  --space-1: 0.25rem;   /* 4px */
  --space-2: 0.5rem;    /* 8px */
  --space-3: 0.75rem;   /* 12px */
  --space-4: 1rem;      /* 16px */
  --space-5: 1.25rem;   /* 20px */
  --space-6: 1.5rem;    /* 24px */
  --space-8: 2rem;      /* 32px */
  --space-10: 2.5rem;   /* 40px */
  --space-12: 3rem;     /* 48px */
  --space-16: 4rem;     /* 64px */
  --space-20: 5rem;     /* 80px */
  --space-24: 6rem;     /* 96px */
  --space-32: 8rem;     /* 128px */
  --space-40: 10rem;    /* 160px */
  --space-48: 12rem;    /* 192px */
  --space-56: 14rem;    /* 224px */
  --space-64: 16rem;    /* 256px */
  
  /* Enhanced Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Space Grotesk', 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
  
  /* Typography Scale */
  --text-xs: 0.75rem;    /* 12px */
  --text-sm: 0.875rem;   /* 14px */
  --text-base: 1rem;     /* 16px */
  --text-lg: 1.125rem;   /* 18px */
  --text-xl: 1.25rem;    /* 20px */
  --text-2xl: 1.5rem;    /* 24px */
  --text-3xl: 1.875rem;  /* 30px */
  --text-4xl: 2.25rem;   /* 36px */
  --text-5xl: 3rem;      /* 48px */
  --text-6xl: 3.75rem;   /* 60px */
  --text-7xl: 4.5rem;    /* 72px */
  
  /* Line Heights */
  --leading-none: 1;
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  --leading-loose: 2;
  
  /* Font Weights */
  --font-thin: 100;
  --font-light: 300;
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  --font-extrabold: 800;
  --font-black: 900;
  
  /* Enhanced Transitions & Animations */
  --transition-all: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-medium: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  --transition-spring: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  
  /* Enhanced Border Radius */
  --radius-none: 0;
  --radius-xs: 2px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-2xl: 32px;
  --radius-3xl: 48px;
  --radius-full: 9999px;
  
  /* Enhanced Shadows */
  --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-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);
  
  /* Glass Shadows */
  --glass-shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.2);
  --glass-shadow-md: 0 8px 32px rgba(0, 0, 0, 0.3);
  --glass-shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.4);
  --glass-shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.5);
}

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

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

body {
  font-family: var(--font-primary);
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  font-weight: var(--font-normal);
  color: var(--star-white);
  background: linear-gradient(135deg, var(--space-black) 0%, var(--deep-space) 40%, var(--nebula-blue) 70%, var(--cosmic-purple) 100%);
  background-attachment: fixed;
  min-height: 100vh;
  overflow-x: hidden;
  font-feature-settings: 'kern' 1, 'liga' 1;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Enhanced Background Animation */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 20% 80%, rgba(120, 119, 198, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(255, 107, 53, 0.12) 0%, transparent 50%),
    radial-gradient(circle at 40% 40%, rgba(108, 92, 231, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 70% 70%, rgba(20, 184, 166, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 90% 10%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
  z-index: -1;
  animation: backgroundFloat 25s ease-in-out infinite;
}

/* Add subtle star field effect */
body::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    radial-gradient(circle at 25% 25%, var(--star-white) 1px, transparent 1px),
    radial-gradient(circle at 75% 75%, var(--moonlight-silver) 0.5px, transparent 0.5px),
    radial-gradient(circle at 60% 20%, rgba(255, 255, 255, 0.8) 0.5px, transparent 0.5px),
    radial-gradient(circle at 30% 80%, rgba(255, 255, 255, 0.6) 0.5px, transparent 0.5px);
  background-size: 800px 800px, 600px 600px, 400px 400px, 500px 500px;
  opacity: 0.4;
  z-index: -1;
  animation: starTwinkle 20s linear infinite;
}

@keyframes backgroundFloat {
  0%, 100% { 
    transform: translateY(0px) scale(1) rotate(0deg); 
    opacity: 0.8;
  }
  33% { 
    transform: translateY(-15px) scale(1.02) rotate(1deg); 
    opacity: 0.9;
  }
  66% { 
    transform: translateY(-25px) scale(0.98) rotate(-1deg); 
    opacity: 1;
  }
}

@keyframes starTwinkle {
  0%, 100% { 
    opacity: 0.4;
    transform: translateX(0px) translateY(0px);
  }
  50% { 
    opacity: 0.7;
    transform: translateX(10px) translateY(-5px);
  }
}

/* Enhanced Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--font-semibold);
  line-height: var(--leading-tight);
  margin-bottom: var(--space-6);
  letter-spacing: -0.02em;
  color: var(--star-white);
}

h1 { 
  font-size: var(--text-6xl); 
  font-weight: var(--font-bold);
  line-height: var(--leading-none);
}
h2 { 
  font-size: var(--text-4xl); 
  font-weight: var(--font-semibold);
}
h3 { 
  font-size: var(--text-3xl); 
  font-weight: var(--font-semibold);
}
h4 { 
  font-size: var(--text-2xl); 
  font-weight: var(--font-medium);
}
h5 { 
  font-size: var(--text-xl); 
  font-weight: var(--font-medium);
}
h6 { 
  font-size: var(--text-lg); 
  font-weight: var(--font-medium);
}

p {
  margin-bottom: var(--space-4);
  line-height: var(--leading-relaxed);
  color: rgba(255, 255, 255, 0.9);
}

/* Enhanced link styles */
a {
  color: var(--earth-blue);
  text-decoration: none;
  transition: var(--transition-fast);
  position: relative;
}

a:hover {
  color: var(--comet-cyan);
  text-decoration: none;
}

a:focus {
  outline: 2px solid var(--earth-blue);
  outline-offset: 2px;
  border-radius: var(--radius-xs);
}

/* Add subtle underline animation */
a:not(.btn):not(.nav-link):not(.navbar-brand)::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--earth-blue), var(--comet-cyan));
  transition: width var(--transition-medium);
}

a:not(.btn):not(.nav-link):not(.navbar-brand):hover::after {
  width: 100%;
}

/* Loading Screen */
.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--space-black);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity var(--transition-slow);
}

.loading-content {
  text-align: center;
}

.loader {
  width: 60px;
  height: 60px;
  border: 3px solid rgba(255, 255, 255, 0.1);
  border-top: 3px solid var(--earth-blue);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto var(--space-4);
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.loading-screen.hidden {
  opacity: 0;
  pointer-events: none;
}

/* Enhanced Glass Morphism Components */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--glass-shadow-md);
  transition: var(--transition-medium);
  position: relative;
  overflow: hidden;
}

.glass-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  opacity: 0;
  transition: var(--transition-medium);
}

.glass-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--glass-shadow-lg);
  border-color: var(--glass-border-strong);
  background: var(--glass-bg-light);
}

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

.glass-nav {
  background: rgba(26, 26, 46, 0.85);
  backdrop-filter: blur(25px) saturate(180%);
  -webkit-backdrop-filter: blur(25px) saturate(180%);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow-sm);
  transition: var(--transition-medium);
}

.glass-nav.scrolled {
  background: rgba(10, 10, 15, 0.95);
  backdrop-filter: blur(30px) saturate(200%);
  border-bottom-color: var(--glass-border-strong);
  box-shadow: var(--glass-shadow-md);
}

/* Enhanced Navigation Styles */
.navbar {
  padding: var(--space-3) 0;
  transition: var(--transition-medium);
}

.navbar .container {
  max-width: 100%;
  padding: 0 var(--space-4);
}

.navbar-brand {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--star-white) !important;
  transition: var(--transition-medium);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  white-space: nowrap;
  margin-right: var(--space-6);
}

.navbar-brand:hover {
  color: var(--comet-cyan) !important;
  transform: scale(1.05);
}

.navbar-brand i {
  transition: var(--transition-medium);
}

.navbar-brand:hover i {
  transform: rotate(15deg) scale(1.1);
  color: var(--solar-orange);
}

/* Brand text responsiveness */
.brand-text {
  display: inline;
}

@media (max-width: 576px) {
  .brand-text {
    display: none;
  }
  
  .navbar-brand {
    font-size: var(--text-2xl);
    margin-right: var(--space-3);
  }
}

/* Desktop Search Bar */
.navbar-search {
  flex: 1;
  max-width: 400px;
  margin: 0 var(--space-6);
}

.navbar-search .search-container {
  position: relative;
}

.navbar-search .search-input {
  background: rgba(255, 255, 255, 0.08);
  border: 2px solid var(--glass-border);
  border-radius: var(--radius-xl);
  color: var(--star-white);
  padding: var(--space-3) var(--space-5) var(--space-3) 3rem;
  font-size: var(--text-sm);
  transition: var(--transition-medium);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  width: 100%;
}

.navbar-search .search-input:focus {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--earth-blue);
  box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.2);
  color: var(--star-white);
  outline: none;
}

.navbar-search .search-input::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.navbar-search .search-icon {
  position: absolute;
  left: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  color: rgba(255, 255, 255, 0.6);
  z-index: 10;
}

/* Custom Burger Menu Button - Always Visible */
.burger-menu {
  background: none;
  border: none;
  padding: var(--space-2);
  cursor: pointer;
  transition: var(--transition-medium);
  position: relative;
  z-index: 1001;
  display: flex; /* Always visible */
}

.burger-lines {
  width: 24px;
  height: 18px;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.line {
  width: 100%;
  height: 2px;
  background: var(--star-white);
  border-radius: var(--radius-xs);
  transition: var(--transition-medium);
  transform-origin: center;
}

/* Burger animation when active */
.burger-menu[aria-expanded="true"] .line1 {
  transform: rotate(45deg) translate(6px, 6px);
}

.burger-menu[aria-expanded="true"] .line2 {
  opacity: 0;
  transform: scaleX(0);
}

.burger-menu[aria-expanded="true"] .line3 {
  transform: rotate(-45deg) translate(6px, -6px);
}

.burger-menu:hover .line {
  background: var(--comet-cyan);
}

/* Desktop Navigation - Hide All Desktop Elements */
.navbar-search,
.navbar-nav.d-none.d-lg-flex {
  display: none !important; /* Hide desktop navigation completely */
}

/* Mobile Menu Styles - Enhanced for All Screen Sizes */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(10, 10, 15, 0.98);
  backdrop-filter: blur(25px);
  -webkit-backdrop-filter: blur(25px);
  z-index: 1000;
  padding: 100px var(--space-6) var(--space-6);
  overflow-y: auto;
  transform: translateX(-100%);
  transition: transform var(--transition-medium);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.mobile-menu.show {
  transform: translateX(0);
}

/* Mobile menu responsive padding and layout */
@media (min-width: 768px) {
  .mobile-menu {
    padding: 120px calc(var(--space-6) * 2) var(--space-6);
  }
}

@media (min-width: 1024px) {
  .mobile-menu {
    padding: 140px calc(var(--space-6) * 3) var(--space-6);
  }
}

@media (min-width: 1200px) {
  .mobile-menu {
    padding: 160px calc(var(--space-6) * 4) var(--space-6);
  }
}

.mobile-menu.show {
  transform: translateX(0);
}

.mobile-menu.collapsing {
  transition: transform var(--transition-medium);
}

/* Mobile Search - Enhanced for Desktop */
.mobile-search-container {
  margin-bottom: var(--space-8);
  position: relative;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}

.mobile-search-container .search-container {
  position: relative;
  width: 100%;
  max-width: 500px;
}

/* Enhanced search input styling */
.mobile-search-container .search-input {
  font-size: var(--text-base);
  padding: var(--space-4) var(--space-5) var(--space-4) 3.5rem;
  border-radius: var(--radius-xl);
  transition: var(--transition-medium);
  width: 100%;
  text-align: left;
}

.mobile-search-container .search-input:focus {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(74, 144, 226, 0.3);
}

/* Clear button for mobile search */
.mobile-search-container .search-clear {
  position: absolute;
  right: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.6);
  cursor: pointer;
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}

.mobile-search-container .search-clear:hover {
  color: var(--star-white);
  background: rgba(255, 255, 255, 0.1);
}

/* Search results within mobile menu */
.mobile-search-container .search-results,
.mobile-search-container .search-suggestions {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  z-index: 1001;
  margin-top: var(--space-2);
}

/* Enhanced responsive mobile search */
@media (min-width: 768px) {
  .mobile-search-container {
    margin: 0 auto var(--space-10);
  }
  
  .mobile-search-container .search-container {
    max-width: 600px;
  }
  
  .mobile-search-container .search-input {
    font-size: var(--text-lg);
    padding: var(--space-5) var(--space-6) var(--space-5) 4rem;
  }
}

@media (min-width: 1024px) {
  .mobile-search-container .search-container {
    max-width: 700px;
  }
}

.mobile-search-container .search-container {
  position: relative;
}

.mobile-search-container .search-input {
  background: rgba(255, 255, 255, 0.08);
  border: 2px solid var(--glass-border);
  border-radius: var(--radius-lg);
  color: var(--star-white);
  padding: var(--space-4) var(--space-5) var(--space-4) 3.5rem;
  font-size: var(--text-base);
  transition: var(--transition-medium);
  width: 100%;
}

.mobile-search-container .search-input:focus {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--earth-blue);
  box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.2);
  outline: none;
}

.mobile-search-container .search-icon {
  position: absolute;
  left: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--text-lg);
}

/* Menu Sections - Enhanced Layout */
.menu-section {
  margin-bottom: var(--space-8);
  width: 100%;
  max-width: 1000px;
}

.menu-section-title {
  color: var(--comet-cyan);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-5);
  padding-left: var(--space-2);
  border-left: 3px solid var(--earth-blue);
  text-align: left;
}

/* Enhanced responsive title */
@media (min-width: 768px) {
  .menu-section-title {
    font-size: var(--text-base);
    margin-bottom: var(--space-6);
    text-align: center;
    border-left: none;
    border-bottom: 2px solid var(--earth-blue);
    padding-left: 0;
    padding-bottom: var(--space-2);
  }
}

/* Navigation Grid */
.nav-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  width: 100%;
  max-width: 900px;
  justify-content: center;
}

/* Enhanced responsive grid for larger screens */
@media (min-width: 768px) {
  .nav-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
    max-width: 800px;
  }
}

@media (min-width: 1024px) {
  .nav-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-8);
    max-width: 900px;
  }
}

@media (min-width: 1200px) {
  .nav-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
    max-width: 800px;
  }
}

.nav-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  background: var(--glass-bg);
  border: 2px solid var(--glass-border);
  border-radius: var(--radius-lg);
  color: var(--star-white);
  text-decoration: none;
  transition: var(--transition-medium);
  position: relative;
  overflow: hidden;
  min-height: 120px;
}

/* Enhanced nav cards for larger screens */
@media (min-width: 768px) {
  .nav-card {
    min-height: 140px;
    padding: var(--space-8);
  }
}

@media (min-width: 1024px) {
  .nav-card {
    min-height: 160px;
    padding: var(--space-10);
  }
}

@media (min-width: 1200px) {
  .nav-card {
    min-height: 140px;
    padding: var(--space-8);
  }
}

.nav-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--earth-blue), var(--cosmic-purple));
  transform: scaleX(0);
  transition: transform var(--transition-medium);
  transform-origin: left;
}

.nav-card:hover {
  transform: translateY(-8px) scale(1.02);
  background: var(--glass-bg-light);
  border-color: var(--glass-border-strong);
  color: var(--star-white);
  text-decoration: none;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

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

.nav-card.active {
  border-color: var(--earth-blue);
  background: rgba(74, 144, 226, 0.1);
}

.nav-card.active::before {
  transform: scaleX(1);
}

.nav-card-icon {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--glass-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-3);
  transition: var(--transition-medium);
}

/* Enhanced icon sizes for larger screens */
@media (min-width: 768px) {
  .nav-card-icon {
    width: 60px;
    height: 60px;
    margin-bottom: var(--space-4);
  }
}

@media (min-width: 1024px) {
  .nav-card-icon {
    width: 70px;
    height: 70px;
    margin-bottom: var(--space-5);
  }
}

@media (min-width: 1200px) {
  .nav-card-icon {
    width: 60px;
    height: 60px;
    margin-bottom: var(--space-4);
  }
}

.nav-card-icon i {
  font-size: var(--text-xl);
  color: var(--earth-blue);
  transition: var(--transition-medium);
}

/* Enhanced icon text sizes */
@media (min-width: 768px) {
  .nav-card-icon i {
    font-size: var(--text-2xl);
  }
}

@media (min-width: 1024px) {
  .nav-card-icon i {
    font-size: var(--text-3xl);
  }
}

@media (min-width: 1200px) {
  .nav-card-icon i {
    font-size: var(--text-2xl);
  }
}

.nav-card:hover .nav-card-icon {
  transform: scale(1.1);
  background: rgba(74, 144, 226, 0.2);
}

.nav-card:hover .nav-card-icon i {
  color: var(--comet-cyan);
  transform: scale(1.1);
}

.nav-card-text {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  text-align: center;
  color: var(--star-white);
  transition: var(--transition-medium);
}

/* Enhanced text sizes for larger screens */
@media (min-width: 768px) {
  .nav-card-text {
    font-size: var(--text-base);
  }
}

@media (min-width: 1024px) {
  .nav-card-text {
    font-size: var(--text-lg);
    font-weight: var(--font-medium);
  }
}

@media (min-width: 1200px) {
  .nav-card-text {
    font-size: var(--text-base);
  }
}

.nav-card:hover .nav-card-text {
  color: var(--comet-cyan);
}

/* Mobile Menu Footer - Enhanced */
.mobile-menu-footer {
  border-top: 1px solid var(--glass-border);
  text-align: center;
  margin-top: auto;
  padding-top: var(--space-6);
}

/* Enhanced footer for larger screens */
@media (min-width: 768px) {
  .mobile-menu-footer {
    padding-top: var(--space-8);
  }
}

.footer-links {
  justify-content: center;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .footer-links {
    gap: var(--space-8);
  }
}

.footer-link {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--text-sm);
  text-decoration: none;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.footer-link:hover {
  color: var(--earth-blue);
  text-decoration: none;
}

/* Responsive adjustments */
@media (max-width: 480px) {
  .nav-grid {
    grid-template-columns: 1fr;
  }
  
  .nav-card {
    min-height: 100px;
    padding: var(--space-5);
  }
  
  .mobile-menu {
    padding: 100px var(--space-4) var(--space-4);
  }
}

/* Enhanced Navigation Styles for larger screens */
@media (min-width: 1200px) {
  .navbar .container {
    max-width: 1400px;
  }
  
  .navbar-nav.d-none.d-lg-flex .nav-link {
    font-size: var(--text-base);
    padding: var(--space-3) var(--space-5) !important;
  }
  
  .navbar-brand {
    font-size: var(--text-2xl);
  }
  
  .navbar-search {
    max-width: 500px;
  }
}

/* Navigation Enhancement Animations */
.navbar-scrolled {
  background: rgba(10, 10, 15, 0.95) !important;
  backdrop-filter: blur(25px);
  border-bottom-color: rgba(255, 255, 255, 0.2);
  transition: all var(--transition-medium);
}

.nav-highlight {
  animation: pulseGlow 2s ease-in-out;
}

@keyframes pulseGlow {
  0%, 100% {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
  }
  50% {
    box-shadow: 0 4px 24px rgba(74, 144, 226, 0.4);
  }
}

/* Enhanced Hero Section */
.hero-section {
  position: relative;
  padding: var(--space-32) 0 var(--space-24);
  overflow: hidden;
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.hero-title {
  font-size: var(--text-7xl);
  font-weight: var(--font-extrabold);
  margin-bottom: var(--space-8);
  line-height: var(--leading-none);
  letter-spacing: -0.03em;
}

.text-gradient {
  background: linear-gradient(135deg, 
    var(--earth-blue) 0%, 
    var(--comet-cyan) 25%, 
    var(--cosmic-purple) 50%, 
    var(--galaxy-violet) 75%, 
    var(--solar-orange) 100%);
  background-size: 300% 300%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 6s ease-in-out infinite;
}

@keyframes gradientShift {
  0%, 100% { 
    background-position: 0% 50%; 
  }
  25% {
    background-position: 100% 50%;
  }
  50% { 
    background-position: 50% 100%; 
  }
  75% {
    background-position: 50% 0%;
  }
}

.hero-subtitle {
  font-size: var(--text-xl);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-10);
  opacity: 0.95;
  font-weight: var(--font-normal);
  color: rgba(255, 255, 255, 0.9);
}

.hero-buttons {
  margin-bottom: var(--space-10);
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.floating-card {
  padding: var(--space-8);
  animation: float 8s ease-in-out infinite;
  max-width: 600px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

@keyframes float {
  0%, 100% { 
    transform: translateY(0px) rotateY(0deg) rotateX(0deg); 
  }
  20% { 
    transform: translateY(-12px) rotateY(2deg) rotateX(1deg); 
  }
  40% { 
    transform: translateY(-8px) rotateY(0deg) rotateX(-1deg); 
  }
  60% { 
    transform: translateY(-18px) rotateY(-2deg) rotateX(1deg); 
  }
  80% { 
    transform: translateY(-6px) rotateY(1deg) rotateX(0deg); 
  }
}

/* Enhanced Button Styles */
.btn {
  font-family: var(--font-primary);
  font-weight: var(--font-semibold);
  font-size: var(--text-sm);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  border: none;
  transition: var(--transition-medium);
  position: relative;
  overflow: hidden;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  text-transform: none;
  letter-spacing: 0.01em;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.btn::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 var(--transition-medium);
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: linear-gradient(135deg, var(--earth-blue) 0%, var(--cosmic-purple) 50%, var(--galaxy-violet) 100%);
  color: var(--star-white);
  box-shadow: 0 4px 20px rgba(74, 144, 226, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 30px rgba(74, 144, 226, 0.5);
  background: linear-gradient(135deg, var(--cosmic-purple) 0%, var(--galaxy-violet) 50%, var(--nebula-indigo) 100%);
  color: var(--star-white);
}

.btn-primary:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.3), 0 8px 30px rgba(74, 144, 226, 0.5);
}

.btn-primary:active {
  transform: translateY(-1px) scale(0.98);
}

.btn-outline-light {
  border: 2px solid rgba(255, 255, 255, 0.3);
  color: var(--star-white);
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.5);
  color: var(--star-white);
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 25px rgba(255, 255, 255, 0.1);
}

.btn-outline-light:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.2), 0 8px 25px rgba(255, 255, 255, 0.1);
}

.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
  border-radius: var(--radius-lg);
}

/* Button loading state */
.btn.loading {
  pointer-events: none;
  opacity: 0.7;
}

.btn.loading::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid transparent;
  border-top: 2px solid currentColor;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

/* Enhanced Feature Cards */
.features-section {
  padding: var(--space-32) 0;
  position: relative;
}

.section-title {
  font-size: var(--text-5xl);
  margin-bottom: var(--space-6);
  text-align: center;
  font-weight: var(--font-bold);
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: var(--text-xl);
  opacity: 0.9;
  text-align: center;
  margin-bottom: var(--space-12);
  color: rgba(255, 255, 255, 0.8);
  font-weight: var(--font-normal);
}

.feature-card {
  padding: var(--space-10);
  text-align: center;
  height: 100%;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  border: 1px solid transparent;
  transition: var(--transition-medium);
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(135deg, 
    var(--earth-blue) 0%, 
    var(--cosmic-purple) 50%, 
    var(--solar-orange) 100%);
  opacity: 0;
  transition: var(--transition-medium);
  transform: scaleX(0);
  transform-origin: left;
}

.feature-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at center, rgba(74, 144, 226, 0.05) 0%, transparent 70%);
  opacity: 0;
  transition: var(--transition-medium);
}

.feature-card:hover {
  border-color: var(--glass-border-strong);
  background: var(--glass-bg-light);
}

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

.feature-card:hover::after {
  opacity: 1;
}

.feature-icon {
  font-size: var(--text-5xl);
  color: var(--earth-blue);
  margin-bottom: var(--space-8);
  transition: var(--transition-spring);
  position: relative;
  z-index: 1;
}

.feature-card:hover .feature-icon {
  color: var(--comet-cyan);
  transform: scale(1.2) rotateY(180deg);
  text-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
}

.feature-card h4 {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-5);
  font-weight: var(--font-semibold);
  position: relative;
  z-index: 1;
}

.feature-card p {
  flex-grow: 1;
  margin-bottom: var(--space-8);
  opacity: 0.9;
  line-height: var(--leading-relaxed);
  position: relative;
  z-index: 1;
}

.feature-card .btn {
  margin-top: auto;
  align-self: center;
  position: relative;
  z-index: 1;
}

/* Enhanced Stats Section */
.stats-section {
  padding: var(--space-32) 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.2) 0%, rgba(26, 26, 46, 0.3) 100%);
  position: relative;
  overflow: hidden;
}

.stats-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 30% 20%, rgba(74, 144, 226, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 70% 80%, rgba(108, 92, 231, 0.08) 0%, transparent 50%);
  z-index: 0;
}

.stat-card {
  padding: var(--space-10) var(--space-6);
  transition: var(--transition-medium);
  position: relative;
  z-index: 1;
  border: 1px solid transparent;
}

.stat-card:hover {
  transform: translateY(-12px) scale(1.05);
  border-color: var(--glass-border-strong);
  background: var(--glass-bg-light);
}

.stat-number {
  font-size: var(--text-5xl);
  font-weight: var(--font-extrabold);
  color: var(--earth-blue);
  font-family: var(--font-heading);
  margin-bottom: var(--space-3);
  background: linear-gradient(135deg, var(--earth-blue), var(--comet-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: var(--text-base);
  opacity: 0.9;
  font-weight: var(--font-medium);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Footer */
.footer {
  background: rgba(0, 0, 0, 0.3);
  border-top: 1px solid var(--glass-border);
  margin-top: var(--space-24);
}

.footer-brand {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--star-white);
}

/* Enhanced Responsive Design */
@media (max-width: 1400px) {
  .hero-title {
    font-size: var(--text-6xl);
  }
  
  .section-title {
    font-size: var(--text-4xl);
  }
}

@media (max-width: 1200px) {
  .hero-title {
    font-size: var(--text-5xl);
  }
  
  .floating-card {
    max-width: 500px;
  }
  
  .feature-icon {
    font-size: var(--text-4xl);
  }
}

@media (max-width: 992px) {
  .hero-section {
    padding: var(--space-24) 0 var(--space-16);
    text-align: center;
  }
  
  .hero-title {
    font-size: var(--text-4xl);
    margin-bottom: var(--space-6);
  }
  
  .hero-subtitle {
    font-size: var(--text-lg);
    margin-bottom: var(--space-8);
  }
  
  .hero-buttons {
    justify-content: center;
    margin-bottom: var(--space-8);
  }
  
  .section-title {
    font-size: var(--text-3xl);
  }
  
  .floating-card {
    margin-top: var(--space-8);
    max-width: 400px;
  }
  
  .feature-card {
    padding: var(--space-8);
  }
}

@media (max-width: 768px) {
  :root {
    --space-24: 4rem;
    --space-32: 5rem;
  }
  
  .navbar-brand {
    font-size: var(--text-lg);
  }
  
  .hero-title {
    font-size: var(--text-3xl);
    margin-bottom: var(--space-5);
    line-height: var(--leading-tight);
  }
  
  .hero-subtitle {
    font-size: var(--text-base);
    margin-bottom: var(--space-6);
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
  }
  
  .hero-buttons .btn {
    width: 100%;
    max-width: 280px;
  }
  
  .section-title {
    font-size: var(--text-2xl);
    margin-bottom: var(--space-5);
  }
  
  .section-subtitle {
    font-size: var(--text-lg);
    margin-bottom: var(--space-8);
  }
  
  .feature-icon {
    font-size: var(--text-3xl);
    margin-bottom: var(--space-6);
  }
  
  .feature-card {
    padding: var(--space-6);
  }
  
  .feature-card h4 {
    font-size: var(--text-xl);
  }
  
  .stat-number {
    font-size: var(--text-3xl);
  }
  
  .floating-card {
    padding: var(--space-6);
    max-width: 90%;
  }
  
  .navbar-nav .nav-link {
    padding: var(--space-3) var(--space-4) !important;
    margin: var(--space-1) 0;
    border-radius: var(--radius-md);
    font-size: var(--text-base);
  }
}

@media (max-width: 576px) {
  .hero-section {
    padding: var(--space-20) 0 var(--space-12);
  }
  
  .hero-title {
    font-size: var(--text-2xl);
    line-height: var(--leading-tight);
  }
  
  .hero-subtitle {
    font-size: var(--text-sm);
  }
  
  .section-title {
    font-size: var(--text-xl);
  }
  
  .floating-card {
    padding: var(--space-4);
  }
  
  .feature-card {
    padding: var(--space-5);
  }
  
  .feature-icon {
    font-size: var(--text-2xl);
  }
  
  .stat-card {
    padding: var(--space-5) var(--space-3);
  }
  
  .stat-number {
    font-size: var(--text-2xl);
  }
  
  .btn-lg {
    padding: var(--space-3) var(--space-6);
    font-size: var(--text-sm);
  }
}

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

.mt-auto { margin-top: auto; }
.mb-auto { margin-bottom: auto; }

.opacity-0 { opacity: 0; }
.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }

.transition-all { transition: var(--transition-medium); }

/* Enhanced Animations for page load */
.fade-in {
  opacity: 0;
  animation: fadeIn 1s ease forwards;
}

.slide-up {
  opacity: 0;
  transform: translateY(40px);
  animation: slideUp 1s ease forwards;
}

.scale-in {
  opacity: 0;
  transform: scale(0.9);
  animation: scaleIn 0.8s ease forwards;
}

.rotate-in {
  opacity: 0;
  transform: rotate(-10deg) scale(0.9);
  animation: rotateIn 1s ease forwards;
}

@keyframes fadeIn {
  to { opacity: 1; }
}

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

@keyframes scaleIn {
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes rotateIn {
  to {
    opacity: 1;
    transform: rotate(0deg) scale(1);
  }
}

/* Stagger animation delays */
.animate-delay-100 { animation-delay: 0.1s; }
.animate-delay-200 { animation-delay: 0.2s; }
.animate-delay-300 { animation-delay: 0.3s; }
.animate-delay-400 { animation-delay: 0.4s; }
.animate-delay-500 { animation-delay: 0.5s; }

/* Hover effects */
.hover-lift {
  transition: var(--transition-medium);
}

.hover-lift:hover {
  transform: translateY(-5px);
  box-shadow: var(--glass-shadow-lg);
}

.hover-glow {
  transition: var(--transition-medium);
}

.hover-glow:hover {
  box-shadow: 0 0 30px rgba(74, 144, 226, 0.3);
}

.hover-scale {
  transition: var(--transition-medium);
}

.hover-scale:hover {
  transform: scale(1.05);
}

/* Focus styles for accessibility */
.focus-ring:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.3);
  border-radius: var(--radius-md);
}

/* Modern scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--space-black);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--earth-blue), var(--cosmic-purple));
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--comet-cyan), var(--galaxy-violet));
}

/* Enhanced selection */
::selection {
  background: rgba(74, 144, 226, 0.3);
  color: var(--star-white);
}

::-moz-selection {
  background: rgba(74, 144, 226, 0.3);
  color: var(--star-white);
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  
  .floating-card {
    animation: none;
  }
  
  body::before {
    animation: none;
  }
}