/* ====================================
   SPACE HUB - MAIN STYLESHEET
   Ultra-detailed, production-ready CSS
   ==================================== */

/* CSS Variables */
:root {
  /* Colors - Dark Theme */
  --color-bg-primary: #0a0a0f;
  --color-bg-secondary: #13131a;
  --color-bg-tertiary: #1a1a24;
  --color-bg-card: rgba(26, 26, 36, 0.6);
  --color-bg-hover: rgba(26, 26, 36, 0.8);
  
  /* Text Colors */
  --color-text-primary: #ffffff;
  --color-text-secondary: #b4b4c8;
  --color-text-muted: #7a7a8c;
  
  /* Accent Colors */
  --color-accent-primary: #00d4ff;
  --color-accent-secondary: #7b2ff7;
  --color-accent-tertiary: #ff006e;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #00d4ff 0%, #7b2ff7 100%);
  --gradient-secondary: linear-gradient(135deg, #7b2ff7 0%, #ff006e 100%);
  --gradient-accent: linear-gradient(90deg, #00d4ff, #7b2ff7, #ff006e);
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;
  
  /* Border Radius */
  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --radius-xl: 2rem;
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px rgba(0, 212, 255, 0.3);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Z-index */
  --z-background: -1;
  --z-content: 1;
  --z-navbar: 100;
  --z-modal: 1000;
}

/* Light Theme */
body.light-theme {
  --color-bg-primary: #f5f5fa;
  --color-bg-secondary: #ffffff;
  --color-bg-tertiary: #e8e8f0;
  --color-bg-card: rgba(255, 255, 255, 0.9);
  --color-bg-hover: rgba(255, 255, 255, 1);
  
  --color-text-primary: #1a1a24;
  --color-text-secondary: #4a4a5c;
  --color-text-muted: #7a7a8c;
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.2);
}

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

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
  background: transparent;
}

::-webkit-scrollbar-track {
  background: var(--color-bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--gradient-primary);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-accent-primary);
}

/* Scrollbar for Firefox */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--color-accent-primary) var(--color-bg-secondary);
}

/* Selection */
::selection {
  background: var(--color-accent-primary);
  color: var(--color-bg-primary);
}

/* ====================================
   SPACE BACKGROUND
   ==================================== */
.space-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: var(--z-background);
  pointer-events: none;
}

#starfield {
  width: 100%;
  height: 100%;
  opacity: 0.8;
}

.nebula-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(ellipse at 20% 30%, rgba(123, 47, 247, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 70%, rgba(0, 212, 255, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 50%, rgba(255, 0, 110, 0.1) 0%, transparent 60%);
  animation: nebulaShift 20s ease-in-out infinite;
}

@keyframes nebulaShift {
  0%, 100% { opacity: 0.3; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.1); }
}

/* ====================================
   NAVIGATION BAR
   ==================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: var(--z-navbar);
  padding: var(--spacing-md) 0;
  background: rgba(10, 10, 15, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  transition: all var(--transition-normal);
}

.navbar.scrolled {
  padding: var(--spacing-sm) 0;
  background: rgba(10, 10, 15, 0.95);
  box-shadow: var(--shadow-md);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-lg);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  text-decoration: none;
  transition: transform var(--transition-fast);
}

.nav-brand:hover {
  transform: translateY(-2px);
}

.logo-icon {
  width: 40px;
  height: 40px;
  animation: logoRotate 20s linear infinite;
}

@keyframes logoRotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: 'Orbitron', sans-serif;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.brand-subtitle {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-md);
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  position: relative;
}

.nav-link svg {
  width: 20px;
  height: 20px;
  stroke-width: 2;
  transition: transform var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-text-primary);
  background: var(--color-bg-tertiary);
  transform: translateY(-2px);
}

.nav-link:hover svg {
  transform: scale(1.1);
}

.nav-link.active {
  color: var(--color-accent-primary);
  background: rgba(0, 212, 255, 0.1);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 30%;
  height: 2px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

.theme-toggle {
  position: relative;
  width: 40px;
  height: 40px;
  background: var(--color-bg-tertiary);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  background: var(--color-bg-hover);
  transform: translateY(-2px) rotate(15deg);
}

.theme-toggle svg {
  position: absolute;
  transition: all var(--transition-normal);
}

.sun-icon {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

.moon-icon {
  opacity: 0;
  transform: rotate(180deg) scale(0);
}

body.light-theme .sun-icon {
  opacity: 0;
  transform: rotate(180deg) scale(0);
}

body.light-theme .moon-icon {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

/* ====================================
   HERO SECTION
   ==================================== */
.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(80px + var(--spacing-3xl)) var(--spacing-lg) var(--spacing-3xl);
  position: relative;
  overflow: hidden;
}

.hero-content {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
  width: 100%;
}

.hero-text {
  animation: fadeInUp 1s ease-out;
}

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

.hero-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 4rem;
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.title-line {
  display: block;
  animation: slideInLeft 0.8s ease-out backwards;
}

.title-line:nth-child(1) {
  animation-delay: 0.2s;
}

.title-line:nth-child(2) {
  animation-delay: 0.4s;
}

.title-line:nth-child(3) {
  animation-delay: 0.6s;
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
  display: inline-block;
}

.gradient-text::after {
  content: attr(data-text);
  position: absolute;
  left: 0;
  top: 0;
  z-index: -1;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: blur(20px);
  opacity: 0.5;
}

.hero-description {
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: var(--spacing-xl);
  max-width: 600px;
  animation: fadeIn 1s ease-out 0.8s backwards;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-2xl);
  animation: fadeIn 1s ease-out 1s backwards;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
  border: 2px solid transparent;
}

.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 0.5s;
}

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

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 20px rgba(0, 212, 255, 0.3);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0, 212, 255, 0.5);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text-primary);
  border: 2px solid var(--color-accent-primary);
}

.btn-secondary:hover {
  background: var(--color-accent-primary);
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0, 212, 255, 0.3);
}

.btn svg {
  width: 20px;
  height: 20px;
}

.hero-stats {
  display: flex;
  gap: var(--spacing-xl);
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  animation: fadeIn 1s ease-out 1.2s backwards;
}

.stat-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.stat-item svg {
  width: 24px;
  height: 24px;
  color: var(--color-accent-primary);
}

.stat-text {
  display: flex;
  flex-direction: column;
}

.stat-number {
  font-family: 'Orbitron', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text-primary);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 1s ease-out 0.5s backwards;
}

.floating-planet {
  position: relative;
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(5deg); }
}

.orbit {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border: 2px solid rgba(0, 212, 255, 0.2);
  border-radius: 50%;
  animation: orbitRotate 10s linear infinite;
}

.orbit-1 {
  width: 300px;
  height: 300px;
  animation-duration: 8s;
}

.orbit-2 {
  width: 380px;
  height: 380px;
  animation-duration: 12s;
  animation-direction: reverse;
}

.orbit-3 {
  width: 460px;
  height: 460px;
  animation-duration: 15s;
}

@keyframes orbitRotate {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

.orbit-object {
  position: absolute;
  top: -4px;
  left: 50%;
  width: 8px;
  height: 8px;
  background: var(--gradient-primary);
  border-radius: 50%;
  box-shadow: 0 0 15px var(--color-accent-primary);
}

/* ====================================
   SECTIONS
   ==================================== */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

section {
  padding: var(--spacing-3xl) 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
}

.section-title svg {
  color: var(--color-accent-primary);
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ====================================
   FEATURES GRID
   ==================================== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.feature-card {
  background: var(--color-bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition-normal);
  z-index: -1;
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent-primary);
}

.feature-card:hover::before {
  opacity: 0.1;
}

.feature-icon {
  width: 64px;
  height: 64px;
  padding: var(--spacing-md);
  background: var(--gradient-primary);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}

.feature-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  font-family: 'Orbitron', sans-serif;
}

.feature-description {
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--spacing-lg);
}

.feature-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--color-accent-primary);
  text-decoration: none;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.feature-link:hover {
  gap: var(--spacing-md);
}

.feature-link svg {
  width: 16px;
  height: 16px;
}

/* ====================================
   QUICK ACCESS
   ==================================== */
.quick-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
}

.quick-card {
  position: relative;
  background: var(--color-bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  text-align: center;
  text-decoration: none;
  color: var(--color-text-primary);
  transition: all var(--transition-normal);
  overflow: hidden;
}

.quick-card-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition-normal);
  z-index: -1;
}

.quick-card:hover .quick-card-bg {
  opacity: 0.15;
}

.quick-card:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent-primary);
}

.quick-icon {
  margin-bottom: var(--spacing-md);
  color: var(--color-accent-primary);
  animation: iconFloat 3s ease-in-out infinite;
}

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

.quick-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
  font-family: 'Orbitron', sans-serif;
}

.quick-card p {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
}

/* ====================================
   FOOTER
   ==================================== */
.footer {
  background: var(--color-bg-secondary);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--spacing-3xl) 0 var(--spacing-lg);
  margin-top: var(--spacing-3xl);
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-brand {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
}

.footer-brand svg {
  flex-shrink: 0;
}

.footer-brand h3 {
  font-family: 'Orbitron', sans-serif;
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xs);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-brand p {
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
}

.footer-column h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  color: var(--color-text-primary);
}

.footer-column a {
  display: block;
  color: var(--color-text-secondary);
  text-decoration: none;
  margin-bottom: var(--spacing-sm);
  transition: all var(--transition-fast);
}

.footer-column a:hover {
  color: var(--color-accent-primary);
  transform: translateX(5px);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  margin-bottom: var(--spacing-xs);
}

.footer-tagline {
  color: var(--color-text-muted);
  font-size: 0.75rem;
  font-style: italic;
}

/* ====================================
   RESPONSIVE DESIGN
   ==================================== */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-text {
    max-width: 700px;
    margin: 0 auto;
  }
  
  .hero-title {
    font-size: 3rem;
  }
  
  .hero-buttons {
    justify-content: center;
  }
  
  .hero-stats {
    justify-content: center;
  }
  
  .hero-visual {
    display: none;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-description {
    font-size: 1rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
  }
  
  .hero-stats {
    flex-direction: column;
    gap: var(--spacing-md);
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .quick-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-links {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .section-title {
    font-size: 1.75rem;
  }
  
  .nav-container {
    padding: 0 var(--spacing-md);
  }
}
/* Immediate fix for disappearing hero text */
.hero-section .hero-content {
  opacity: 1 !important;
  visibility: visible !important;
}

.hero-title,
.hero-title .title-line,
.hero-description,
.hero-buttons,
.hero-stats {
  opacity: 1 !important;
  visibility: visible !important;
  animation: none !important;
}

/* Override any GSAP animations that might be hiding elements */
.gsap-marker-start,
.gsap-marker-end,
.gsap-marker-scroller-start,
.gsap-marker-scroller-end {
  display: none !important;
}