/* Modern Clean Design CSS */

/* Root Variables */
:root {
  --primary-bg: #0a0a0f;
  --secondary-bg: #12121a;
  --card-bg: #1a1a24;
  --accent-color: #8b5cf6;
  --accent-hover: #1a8cd8;
  --text-primary: #ffffff;
  --text-secondary: #a0a0b0;
  --border-color: rgba(255, 255, 255, 0.1);
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --danger-color: #ef4444;
  --gradient-primary: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
  --gradient-secondary: linear-gradient(135deg, #10b981 0%, #3b82f6 100%);
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
}

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

html {
  scroll-behavior: smooth;
}

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

html, body {
  height: 100%;
}

/* Ensure pattern background extends properly */
body.pattern-bg {
  min-height: 100vh;
  background-attachment: fixed;
}

/* Modern Header */
.modern-header {
  background: rgba(18, 18, 26, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  transition: all 0.3s ease;
}

.header-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-section {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo-img {
  width: 50px;
  height: 50px;
  border-radius: 12px;
}

.site-title {
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-menu {
  display: flex;
  gap: 2rem;
  list-style: none;
  align-items: center;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
  position: relative;
}

.nav-link:hover {
  color: var(--text-primary);
}

.nav-link.active {
  color: var(--accent-color);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-color);
  transition: width 0.3s ease;
}

.nav-link:hover::after {
  width: 100%;
}

/* Hero Section */
.hero-section {
  margin-top: 60px;
  text-align: center;
  position: relative;
}

.hero-content {
  max-width: 1200px;
  margin: 0 auto;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Modern Cards */
.card {
  background: var(--card-bg);
  border-radius: 20px;
  padding: 2rem;
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
  position: relative;
  overflow: visible;
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, transparent, rgba(139, 92, 246, 0.1));
  opacity: 0;
  transition: opacity 0.3s ease;
}

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

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
  border-color: var(--accent-color);
}

/* Feature Cards Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.feature-card {
  background: var(--card-bg);
  border-radius: 20px;
  padding: 2.5rem;
  text-align: center;
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(139, 92, 246, 0.2);
  border-color: var(--accent-color);
}

.feature-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.5rem;
  background: var(--gradient-primary);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
}

.feature-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.feature-description {
  color: var(--text-secondary);
  line-height: 1.8;
}

/* Modern Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  border-radius: 12px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
  font-size: 1rem;
  position: relative;
  z-index: 10;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(139, 92, 246, 0.4);
}

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

.btn-secondary:hover {
  background: var(--accent-color);
  color: white;
}

/* Social Links */
.social-section {
  text-align: center;
}

.social-grid {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-top: 2rem;
}

.social-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.5rem 2.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  text-decoration: none;
  color: var(--text-primary);
  transition: all 0.3s ease;
  min-width: 200px;
}

.social-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent-color);
  box-shadow: 0 10px 30px rgba(139, 92, 246, 0.2);
}

.social-icon {
  font-size: 1.5rem;
}

/* Modern Footer */
.modern-footer {
  background: var(--secondary-bg);
  border-top: 1px solid var(--border-color);
  padding: 3rem 2rem 2rem;
  margin-top: 5rem;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
}

.footer-section h3 {
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

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

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

.footer-bottom {
  text-align: center;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  color: var(--text-secondary);
}

/* Animations */
.fade-in {
  animation: fadeIn 0.6s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.slide-up {
  animation: slideUp 0.8s ease-out;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(50px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Ensure content appears above background */
.modern-header,
.hero-section,
.card,
.feature-card,
.social-card,
.modern-footer,
main,
.container {
  position: relative;
  z-index: 1;
}

/* Responsive Design */
@media (max-width: 768px) {
  .header-container {
    padding: 1rem;
  }

  .nav-menu {
    display: none;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .features-grid {
    grid-template-columns: 1fr;
    padding: 1rem;
  }

  .social-grid {
    flex-direction: column;
    align-items: center;
  }

  .footer-container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  /* Mobile-specific background optimizations */
  .pattern-bg {
    background-attachment: fixed;
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
  }

  .pattern-bg::before {
    position: fixed;
    background: radial-gradient(
      ellipse at 50% 50%,
      rgba(139, 92, 246, 0.08) 0%,
      rgba(139, 92, 246, 0.03) 40%,
      transparent 70%
    );
  }


  /* Ensure proper rendering on mobile */
  body {
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
  }
}

/* Glassmorphism Effects */
.glass {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.text-glow {
  text-shadow: 0 0 20px rgba(139, 92, 246, 0.5);
}

/* Clean Background Pattern */
.pattern-bg {
  background-color: var(--primary-bg);
  background-image: radial-gradient(
      circle at 20% 50%,
      rgba(139, 92, 246, 0.15) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 80% 80%,
      rgba(124, 58, 237, 0.15) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 40% 20%,
      rgba(16, 185, 129, 0.15) 0%,
      transparent 50%
    );
  background-attachment: fixed;
  background-size: 100vw 100vh;
  background-repeat: no-repeat;
  background-position: center center;
  position: relative;
  min-height: 100vh;
}


/* Mobile-optimized gradient overlay */
.pattern-bg::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(
    ellipse at center,
    rgba(139, 92, 246, 0.05) 0%,
    transparent 70%
  );
  pointer-events: none;
  z-index: 0;
  /* Performance optimization for mobile */
  will-change: transform;
  -webkit-transform: translateZ(0);
  transform: translateZ(0);
}

/* Loading Animation */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: var(--accent-color);
  animation: spin 1s ease-in-out infinite;
}

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

/* Smooth Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--accent-color);
  border-radius: 5px;
}

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