@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Orbitron:wght@400;700;900&display=swap');

:root {
  /* Light Mode Colors */
  --primary-bg: #ffffff;
  --secondary-bg: #f8fafc;
  --card-bg: rgba(255, 255, 255, 0.1);
  --text-primary: #1a202c;
  --text-secondary: #4a5568;
  --accent-primary: #00d4ff;
  --accent-secondary: #7c3aed;
  --accent-gradient: linear-gradient(135deg, #00d4ff 0%, #7c3aed 100%);
  --glow-color: rgba(0, 212, 255, 0.3);
  --border-color: rgba(0, 212, 255, 0.2);
  --shadow-color: rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] {
  /* Dark Mode Colors */
  --primary-bg: #0f0f23;
  --secondary-bg: #1a1a3a;
  --card-bg: rgba(255, 255, 255, 0.05);
  --text-primary: #ffffff;
  --text-secondary: #a0aec0;
  --accent-primary: #00d4ff;
  --accent-secondary: #7c3aed;
  --accent-gradient: linear-gradient(135deg, #00d4ff 0%, #7c3aed 100%);
  --glow-color: rgba(0, 212, 255, 0.4);
  --border-color: rgba(0, 212, 255, 0.3);
  --shadow-color: rgba(0, 0, 0, 0.3);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--primary-bg);
  color: var(--text-primary);
  overflow-x: hidden;
  transition: all 0.3s ease;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Theme Toggle */
.theme-toggle {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 1000;
  width: 60px;
  height: 30px;
  background: var(--card-bg);
  border: 2px solid var(--border-color);
  border-radius: 25px;
  cursor: pointer;
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
}

.theme-toggle:hover {
  box-shadow: 0 0 20px var(--glow-color);
}

.toggle-slider {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 8px;
  transition: all 0.3s ease;
}

.toggle-slider::before {
  content: '';
  position: absolute;
  width: 22px;
  height: 22px;
  background: var(--accent-gradient);
  border-radius: 50%;
  left: 2px;
  transition: all 0.3s ease;
  box-shadow: 0 2px 10px var(--glow-color);
}

[data-theme="dark"] .toggle-slider::before {
  transform: translateX(28px);
}

.sun-icon, .moon-icon {
  font-size: 12px;
  color: var(--text-secondary);
  transition: all 0.3s ease;
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--accent-gradient);
  opacity: 0.1;
  z-index: -1;
}

.hero-bg::before {
  content: '';
  position: absolute;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, var(--glow-color) 1px, transparent 1px);
  background-size: 50px 50px;
  animation: float 20s linear infinite;
}

@keyframes float {
  0% { transform: translate(-50%, -50%); }
  100% { transform: translate(-50%, -48%); }
}

.hero-content {
  text-align: center;
  z-index: 2;
}

.hero-title {
  font-family: 'Orbitron', monospace;
  font-size: clamp(3rem, 8vw, 8rem);
  font-weight: 900;
  margin-bottom: 1rem;
  position: relative;
}

.kcode-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 30px var(--glow-color));
  animation: glow-pulse 2s ease-in-out infinite alternate;
}

@keyframes glow-pulse {
  0% { filter: drop-shadow(0 0 20px var(--glow-color)); }
  100% { filter: drop-shadow(0 0 40px var(--glow-color)); }
}

.hero-tagline {
  font-size: clamp(1.2rem, 3vw, 2rem);
  font-weight: 300;
  margin-bottom: 1.5rem;
  color: var(--text-secondary);
  letter-spacing: 2px;
}

.hero-description {
  font-size: clamp(1rem, 2vw, 1.2rem);
  max-width: 600px;
  margin: 0 auto 3rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.cta-button {
  background: var(--accent-gradient);
  border: none;
  padding: 1rem 2.5rem;
  border-radius: 50px;
  color: white;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.cta-button::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: all 0.5s ease;
}

.cta-button:hover::before {
  left: 100%;
}

.cta-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 35px var(--glow-color);
}

.scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2s infinite;
}

.scroll-arrow {
  width: 20px;
  height: 20px;
  border-right: 2px solid var(--accent-primary);
  border-bottom: 2px solid var(--accent-primary);
  transform: rotate(45deg);
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
  40% { transform: translateX(-50%) translateY(-10px); }
  60% { transform: translateX(-50%) translateY(-5px); }
}

/* Section Styles */
section {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-header h2 {
  font-family: 'Orbitron', monospace;
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  margin-bottom: 1rem;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-divider {
  width: 100px;
  height: 4px;
  background: var(--accent-gradient);
  margin: 0 auto;
  border-radius: 2px;
  box-shadow: 0 0 20px var(--glow-color);
}

/* About Section */
.about {
  background: var(--secondary-bg);
}

.about-content {
  max-width: 800px;
  margin: 0 auto;
}

.about-text {
  text-align: center;
  margin-bottom: 3rem;
}

.about-text p {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.stat-item {
  text-align: center;
  padding: 2rem;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
}

.stat-item:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px var(--shadow-color);
  border-color: var(--accent-primary);
}

.stat-number {
  font-size: 3rem;
  font-weight: 700;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
}

.stat-label {
  color: var(--text-secondary);
  font-weight: 500;
}

/* Perks Section */
.perks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.perk-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 2.5rem 2rem;
  text-align: center;
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.perk-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--accent-gradient);
  opacity: 0;
  transition: all 0.3s ease;
  z-index: -1;
}

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

.perk-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 25px 50px var(--shadow-color);
  border-color: var(--accent-primary);
}

.perk-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.5rem;
  background: var(--accent-gradient);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: white;
  box-shadow: 0 10px 30px var(--glow-color);
}

.perk-card h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.perk-card p {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Testimonials Section */
.testimonials {
  background: var(--secondary-bg);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
}

.testimonial-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 2.5rem;
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
  position: relative;
}

.testimonial-card::before {
  content: '"';
  position: absolute;
  top: -10px;
  left: 20px;
  font-size: 4rem;
  color: var(--accent-primary);
  opacity: 0.3;
  font-family: serif;
}

.testimonial-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px var(--shadow-color);
  border-color: var(--accent-primary);
}

.testimonial-text {
  font-size: 1.1rem;
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.author-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 600;
  font-size: 1.2rem;
}

.author-info h4 {
  color: var(--text-primary);
  font-weight: 600;
  margin-bottom: 0.2rem;
}

.author-info span {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Footer */
.footer {
  background: var(--primary-bg);
  border-top: 1px solid var(--border-color);
  padding: 3rem 0 1rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  align-items: center;
  margin-bottom: 2rem;
}

.footer-brand h3 {
  font-family: 'Orbitron', monospace;
  font-size: 2rem;
  font-weight: 700;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
}

.footer-brand p {
  color: var(--text-secondary);
}

.footer-links {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
  position: relative;
}

.footer-links a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-gradient);
  transition: all 0.3s ease;
}

.footer-links a:hover::after {
  width: 100%;
}

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

.footer-social {
  display: flex;
  gap: 1rem;
  justify-content: center;
}

.social-link {
  width: 50px;
  height: 50px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.social-link:hover {
  background: var(--accent-gradient);
  color: white;
  transform: translateY(-3px);
  box-shadow: 0 10px 25px var(--glow-color);
}

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

/* Loading Animation */
.loading {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 200px;
}

.spinner {
  width: 50px;
  height: 50px;
  border: 3px solid var(--border-color);
  border-top: 3px solid var(--accent-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* Responsive Design */
@media (max-width: 768px) {
  .container {
    padding: 0 15px;
  }
  
  section {
    padding: 60px 0;
  }
  
  .hero-title {
    font-size: 4rem;
  }
  
  .perks-grid {
    grid-template-columns: 1fr;
  }
  
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer-links {
    justify-content: center;
  }
  
  .about-stats {
    grid-template-columns: 1fr;
  }
  
  .theme-toggle {
    top: 10px;
    right: 10px;
    width: 50px;
    height: 25px;
  }
  
  .toggle-slider::before {
    width: 18px;
    height: 18px;
  }
  
  [data-theme="dark"] .toggle-slider::before {
    transform: translateX(23px);
  }
}

@media (max-width: 480px) {
  .perk-card,
  .testimonial-card {
    padding: 2rem 1.5rem;
  }
  
  .hero-content {
    padding: 0 1rem;
  }
}