/* Color Variables */
:root {
  /* Space Colors */
  --space-dark: hsl(235, 20%, 10%);
  --space-medium: hsl(235, 15%, 15%);
  --space-light: hsl(235, 10%, 20%);
  
  /* Tech Cyan Colors */
  --tech-cyan: hsl(180, 100%, 50%);
  --tech-cyan-dark: hsl(180, 100%, 40%);
  --tech-cyan-light: hsl(180, 100%, 70%);
  
  /* Card Colors */
  --card: hsl(235, 15%, 12%);
  --card-dark: hsl(235, 20%, 8%);
  
  /* Text Colors */
  --text-light: hsl(0, 0%, 95%);
  --text-muted: hsl(0, 0%, 70%);
}

/* Base Styles */
body {
  background: linear-gradient(135deg, var(--space-dark) 0%, var(--space-medium) 100%);
  color: var(--text-light);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.6;
  min-height: 100vh;
}

/* Custom Colors */
.bg-space-dark { background-color: var(--space-dark) !important; }
.bg-space-medium { background-color: var(--space-medium) !important; }
.bg-card { background-color: var(--card) !important; }
.bg-card-dark { background-color: var(--card-dark) !important; }
.text-tech-cyan { color: var(--tech-cyan) !important; }
.border-tech-cyan { border-color: var(--tech-cyan) !important; }

/* Navbar */
.navbar {
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 255, 255, 0.2);
}

.navbar-brand .logo-img {
  width: 140px;
  /* height: 40px; */
  animation: pulse 2s infinite;
}

.navbar-nav .nav-link {
  color: var(--text-light) !important;
  transition: color 0.3s ease;
  padding: 0.5rem 1rem !important;
}

.navbar-nav .nav-link:hover {
  color: var(--tech-cyan) !important;
}

/* Buttons */
.btn-space {
  background: linear-gradient(135deg, var(--space-medium), var(--space-light));
  border: 1px solid var(--tech-cyan);
  color: var(--text-light);
  transition: all 0.3s ease;
}

.btn-space:hover {
  background: linear-gradient(135deg, var(--tech-cyan), var(--tech-cyan-dark));
  color: var(--space-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(0, 255, 255, 0.3);
}

.btn-energy {
  background: linear-gradient(135deg, var(--tech-cyan), var(--tech-cyan-dark));
  border: none;
  color: var(--space-dark);
  font-weight: 600;
  transition: all 0.3s ease;
}

.btn-energy:hover {
  background: linear-gradient(135deg, var(--tech-cyan-light), var(--tech-cyan));
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(0, 255, 255, 0.5);
}

.btn-hero {
  background: linear-gradient(135deg, var(--tech-cyan), var(--tech-cyan-dark));
  border: none;
  color: var(--space-dark);
  font-weight: 600;
  padding: 1rem 2rem;
  border-radius: 50px;
  transition: all 0.3s ease;
}

.btn-hero:hover {
  background: linear-gradient(135deg, var(--tech-cyan-light), var(--tech-cyan));
  transform: translateY(-3px);
  box-shadow: 0 15px 35px rgba(0, 255, 255, 0.6);
}

/* Hero Section */
.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 150px;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 50% 50%, rgba(0, 255, 255, 0.1) 0%, transparent 50%);
  animation: pulse 4s ease-in-out infinite;
}

.hero-title {
  font-size: clamp(2.5rem, 8vw, 5rem);
  font-weight: 800;
  margin-bottom: 2rem;
  line-height: 1.1;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 3vw, 1.5rem);
  max-width: 800px;
  margin: 0 auto 3rem;
  opacity: 0.9;
}

/* Stats Cards */
.stat-card {
  background: rgba(0, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 255, 255, 0.2);
  border-radius: 1rem;
  padding: 2rem;
  text-align: center;
  transition: all 0.3s ease;
}

.stat-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(0, 255, 255, 0.3);
  border-color: var(--tech-cyan);
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 1rem;
  opacity: 0.8;
}

/* Section Styles */
.section-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.section-subtitle {
  font-size: 1.25rem;
  color: var(--text-muted);
  max-width: 800px;
  margin: 0 auto;
}

/* Feature Cards */
.feature-card, .step-card, .tokenomics-card, .tech-card {
  background: rgba(0, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 255, 255, 0.2);
  border-radius: 1rem;
  padding: 2rem;
  height: 100%;
  transition: all 0.3s ease;
}

.feature-card:hover, .step-card:hover, .tokenomics-card:hover, .tech-card:hover {
  transform: translateY(-5px);
  border-color: var(--tech-cyan);
  box-shadow: 0 15px 35px rgba(0, 255, 255, 0.2);
}

.feature-icon, .step-icon, .tokenomics-icon, .tech-icon {
  width: 80px;
  height: 80px;
  background: rgba(0, 255, 255, 0.2);
  border-radius: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
}

.feature-icon i, .step-icon i, .tokenomics-icon i, .tech-icon i {
  font-size: 2rem;
}

/* About Cards */
.about-card {
  background: rgba(0, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 255, 255, 0.2);
  border-radius: 1rem;
  padding: 2rem;
  height: 100%;
  transition: all 0.3s ease;
}

.about-card:hover {
  transform: translateY(-5px);
  border-color: var(--tech-cyan);
  box-shadow: 0 15px 35px rgba(0, 255, 255, 0.2);
}

.about-icon {
  width: 60px;
  height: 60px;
  background: rgba(0, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.about-icon i {
  font-size: 1.5rem;
}

/* Income Cards */
.income-card {
  background: rgba(0, 255, 255, 0.08);
  border: 1px solid rgba(0, 255, 255, 0.15);
  border-radius: 0.75rem;
  padding: 1.5rem;
  transition: all 0.3s ease;
}

.income-card:hover {
  border-color: var(--tech-cyan);
  transform: translateY(-3px);
}

/* Benefits Cards */
.benefits-card {
  background: rgba(0, 255, 255, 0.08);
  border: 1px solid rgba(0, 255, 255, 0.15);
  border-radius: 0.75rem;
  padding: 1.5rem;
}

/* Lists */
.benefits-list, .tech-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.benefits-list li, .tech-list li {
  padding: 0.5rem 0;
  color: var(--text-muted);
  display: flex;
  align-items: center;
}

.tech-list li {
  padding: 0.25rem 0;
  position: relative;
  padding-left: 1rem;
}

.tech-list li::before {
  content: "•";
  color: var(--tech-cyan);
  position: absolute;
  left: 0;
}

/* Investment Details */
.investment-details {
  background: rgba(0, 255, 255, 0.05);
  border-radius: 0.75rem;
  padding: 1.5rem;
}

/* Accordion */
.accordion-item {
  background: rgba(0, 255, 255, 0.05);
  border: 1px solid rgba(0, 255, 255, 0.2);
  border-radius: 0.75rem !important;
  margin-bottom: 1rem;
  overflow: hidden;
}

.accordion-button {
  background: transparent;
  color: var(--text-light);
  border: none;
  padding: 1.5rem;
  font-weight: 600;
  transition: all 0.3s ease;
}

.accordion-button:not(.collapsed) {
  background: rgba(0, 255, 255, 0.1);
  color: var(--tech-cyan);
  box-shadow: none;
}

.accordion-button:focus {
  box-shadow: none;
  border: none;
}

.accordion-button::after {
  filter: brightness(0) invert(1);
}

.accordion-body {
  color: var(--text-muted);
  padding: 0 1.5rem 1.5rem;
}

/* Footer */
.footer {
  background: var(--space-dark);
  border-top: 1px solid rgba(0, 255, 255, 0.2);
}

.footer .logo-img {
  width: 150px;
  /* height: 32px; */
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: var(--tech-cyan);
}

.social-links {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: rgba(0, 255, 255, 0.1);
  border: 1px solid rgba(0, 255, 255, 0.2);
  border-radius: 50%;
  color: var(--tech-cyan);
  text-decoration: none;
  transition: all 0.3s ease;
}

.social-link:hover {
  background: var(--tech-cyan);
  color: var(--space-dark);
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(0, 255, 255, 0.3);
}

/* Modal Styles */
.modal-content {
  background: var(--space-dark);
  border: 1px solid var(--tech-cyan);
  border-radius: 1rem;
}

.modal-header, .modal-footer {
  border-color: rgba(0, 255, 255, 0.2);
}

.form-control {
  background: var(--space-medium);
  border: 1px solid rgba(0, 255, 255, 0.3);
  color: var(--text-light);
  transition: all 0.3s ease;
}

.form-control:focus {
  background: var(--space-medium);
  border-color: var(--tech-cyan);
  color: var(--text-light);
  box-shadow: 0 0 0 0.2rem rgba(0, 255, 255, 0.25);
}

.form-control::placeholder {
  color: var(--text-muted);
}

.form-check-input {
  background-color: var(--space-medium);
  border-color: var(--tech-cyan);
}

.form-check-input:checked {
  background-color: var(--tech-cyan);
  border-color: var(--tech-cyan);
}

/* Animations */
@keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.8;
    transform: scale(1.05);
  }
}

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

/* Smooth Scrolling */
html {
  scroll-behavior: smooth;
}

/* Responsive Adjustments */

/* Large Desktop (1200px and above) */
@media (min-width: 1200px) {
  .container {
    max-width: 1140px;
  }
}

/* Desktop (992px to 1199px) */
@media (max-width: 1199px) {
  .hero-title {
    font-size: 4rem;
  }
  
  .section-title {
    font-size: 3rem;
  }
}

/* Tablet (768px to 991px) */
@media (max-width: 991px) {
  .navbar-nav .nav-link {
    padding: 0.75rem 1rem !important;
  }
  
  .navbar-collapse {
    background: var(--space-dark);
    padding: 1rem;
    border-radius: 0.5rem;
    margin-top: 1rem;
    border: 1px solid rgba(0, 255, 255, 0.2);
  }
  
  .hero-title {
    font-size: 3rem;
  }
  
  .section-title {
    font-size: 2.5rem;
  }
  
  .stat-number {
    font-size: 2rem;
  }
  
  .feature-icon, .step-icon, .tokenomics-icon, .tech-icon {
    width: 60px;
    height: 60px;
  }
  
  .feature-icon i, .step-icon i, .tokenomics-icon i, .tech-icon i {
    font-size: 1.5rem;
  }
}

/* Mobile Landscape and Small Tablets (576px to 767px) */
@media (max-width: 767px) {
  .hero-section {
    padding-top: 100px;
    min-height: auto;
    padding-bottom: 3rem;
  }
  
  .hero-title {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
  }
  
  .hero-subtitle {
    font-size: 1.1rem;
    margin-bottom: 2rem;
  }
  
  .stat-card {
    padding: 1.5rem;
    margin-bottom: 1rem;
  }
  
  .stat-number {
    font-size: 1.8rem;
  }
  
  .feature-card, .step-card, .tokenomics-card, .tech-card, .about-card {
    padding: 1.5rem;
    margin-bottom: 1rem;
  }
  
  .section-title {
    font-size: 2rem;
    margin-bottom: 1rem;
  }
  
  .section-subtitle {
    font-size: 1rem;
  }
  
  .btn-hero {
    padding: 0.75rem 1.5rem;
    font-size: 0.9rem;
  }
  
  .about-icon {
    width: 50px;
    height: 50px;
  }
  
  .about-icon i {
    font-size: 1.25rem;
  }
  
  .income-card {
    margin-bottom: 1rem;
  }
  
  .accordion-button {
    padding: 1rem;
    font-size: 0.95rem;
  }
  
  .accordion-body {
    padding: 0 1rem 1rem;
  }
}

/* Mobile Portrait (320px to 575px) */
@media (max-width: 575px) {
  .navbar-brand {
    font-size: 1rem;
  }
  
  .navbar-brand .logo-img {
    width: 125px;
    /* height: 32px; */
  }
  
  .navbar-nav .btn {
    width: 100%;
    margin: 0.5rem 0;
  }
  
  .hero-section {
    padding-top: 165px;
  }
  
  .hero-title {
    font-size: 2rem;
    margin-bottom: 1rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
    margin-bottom: 1.5rem;
  }
  
  .btn-hero {
    padding: 0.65rem 1.25rem;
    font-size: 0.85rem;
  }
  
  .stat-card {
    padding: 1rem;
  }
  
  .stat-number {
    font-size: 1.5rem;
  }
  
  .stat-label {
    font-size: 0.85rem;
  }
  
  .section-title {
    font-size: 1.75rem;
  }
  
  .section-subtitle {
    font-size: 0.95rem;
  }
  
  .feature-card, .step-card, .tokenomics-card, .tech-card, .about-card {
    padding: 1.25rem;
  }
  
  .feature-icon, .step-icon, .tokenomics-icon, .tech-icon {
    width: 50px;
    height: 50px;
  }
  
  .feature-icon i, .step-icon i, .tokenomics-icon i, .tech-icon i {
    font-size: 1.25rem;
  }
  
  .about-icon {
    width: 45px;
    height: 45px;
  }
  
  .income-card, .benefits-card {
    padding: 1rem;
  }
  
  .investment-details {
    padding: 1rem;
  }
  
  .social-links {
    justify-content: center;
  }
  
  .social-link {
    width: 35px;
    height: 35px;
    font-size: 0.85rem;
  }
  
  .accordion-button {
    padding: 0.75rem;
    font-size: 0.9rem;
  }
  
  .accordion-body {
    padding: 0 0.75rem 0.75rem;
    font-size: 0.9rem;
  }
  
  /* Form adjustments for mobile */
  .form-control {
    font-size: 0.9rem;
  }
  
  .btn {
    font-size: 0.9rem;
  }
}

/* Extra Small Devices (320px and below) */
@media (max-width: 320px) {
  .hero-title {
    font-size: 1.75rem;
  }
  
  .section-title {
    font-size: 1.5rem;
  }
  
  .stat-number {
    font-size: 1.25rem;
  }
}

/* Loading Animation */
.loading {
  opacity: 0;
  animation: fadeInUp 0.6s ease forwards;
}

/* Utility Classes */
.text-gradient {
  background: linear-gradient(135deg, var(--tech-cyan), var(--tech-cyan-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.border-gradient {
  border: 2px solid;
  border-image: linear-gradient(135deg, var(--tech-cyan), var(--tech-cyan-light)) 1;
}