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

:root {
  --primary-bg: #0a0a0a;
  --secondary-bg: #1a1a1a;
  --accent-bg: rgba(255, 255, 255, 0.05);
  --text-primary: #ffffff;
  --text-secondary: #b0b0b0;
  --text-accent: #888;
  --border-color: rgba(255, 255, 255, 0.1);
  --gradient-primary: linear-gradient(135deg, #ffffff 0%, #a0a0a0 100%);
  --gradient-secondary: linear-gradient(135deg, #ffffff 0%, #cccccc 50%, #ffffff 100%);
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: linear-gradient(135deg, var(--primary-bg) 0%, var(--secondary-bg) 50%, var(--primary-bg) 100%);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Animated background */
.animated-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  opacity: 0.3;
}

.floating-shape {
  position: absolute;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
  animation: float 20s infinite linear;
}

.floating-shape:nth-child(1) {
  width: 80px;
  height: 80px;
  top: 20%;
  left: 10%;
  animation-delay: 0s;
}

.floating-shape:nth-child(2) {
  width: 120px;
  height: 120px;
  top: 60%;
  right: 10%;
  animation-delay: -5s;
}

.floating-shape:nth-child(3) {
  width: 100px;
  height: 100px;
  bottom: 30%;
  left: 20%;
  animation-delay: -10s;
}

.floating-shape:nth-child(4) {
  width: 60px;
  height: 60px;
  top: 10%;
  right: 30%;
  animation-delay: -15s;
}

@keyframes float {
  0% {
    transform: translateY(0px) rotate(0deg);
    opacity: 0.3;
  }
  50% {
    transform: translateY(-100px) rotate(180deg);
    opacity: 0.6;
  }
  100% {
    transform: translateY(0px) rotate(360deg);
    opacity: 0.3;
  }
}

/* Header */
header {
  position: fixed;
  top: 0;
  width: 100%;
  padding: 1rem 2rem;
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: all 0.3s ease;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  transition: all 0.3s ease;
}

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

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

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

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

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

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

.cta-button {
  padding: 0.8rem 2rem;
  background: linear-gradient(135deg, #ffffff 0%, #f0f0f0 100%);
  color: #000;
  text-decoration: none;
  border-radius: 50px;
  font-weight: 600;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.cta-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #f0f0f0 0%, #ffffff 100%);
  transition: left 0.3s ease;
  z-index: -1;
}

.cta-button:hover::before {
  left: 0;
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(255, 255, 255, 0.2);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0 2rem;
  position: relative;
}

.hero-content {
  max-width: 900px;
  z-index: 1;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 700;
  margin-bottom: 1.5rem;
  background: var(--gradient-secondary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
  animation: fadeInUp 1s ease-out;
}

.hero .subtitle {
  font-size: 1.4rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  font-weight: 300;
  animation: fadeInUp 1s ease-out 0.2s both;
}

.hero .description {
  font-size: 1.2rem;
  color: var(--text-accent);
  margin-bottom: 3rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.8;
  animation: fadeInUp 1s ease-out 0.4s both;
}

.hero-buttons {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 1s ease-out 0.6s both;
}

.btn-primary, .btn-secondary {
  padding: 1rem 2.5rem;
  border-radius: 50px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  font-size: 1.1rem;
}

.btn-primary {
  background: linear-gradient(135deg, #ffffff 0%, #f0f0f0 100%);
  color: #000;
}

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

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 40px rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
  background: var(--accent-bg);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-3px);
}

/* Stats Section */
.stats {
  padding: 4rem 2rem;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.03) 0%, rgba(255, 255, 255, 0.01) 100%);
}

.stats-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
}

.stat-item {
  text-align: center;
  padding: 2rem;
}

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

.stat-label {
  color: var(--text-secondary);
  font-size: 1.1rem;
  font-weight: 500;
}

/* Features Section */
.features {
  padding: 6rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  text-align: center;
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 1rem;
  background: var(--gradient-secondary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  text-align: center;
  font-size: 1.3rem;
  color: var(--text-accent);
  margin-bottom: 4rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 3rem;
  margin-top: 4rem;
}

.feature-card {
  background: var(--accent-bg);
  padding: 3rem;
  border-radius: 25px;
  border: 1px solid var(--border-color);
  transition: all 0.4s ease;
  backdrop-filter: blur(20px);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
  transition: left 0.6s ease;
}

.feature-card:hover::before {
  left: 0;
}

.feature-card:hover {
  transform: translateY(-10px) scale(1.02);
  border-color: rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.08);
}

.feature-icon {
  width: 80px;
  height: 80px;
  background: var(--gradient-primary);
  border-radius: 20px;
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  position: relative;
  z-index: 1;
}

.feature-card h3 {
  font-size: 1.6rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-primary);
  position: relative;
  z-index: 1;
}

.feature-card p {
  color: var(--text-secondary);
  line-height: 1.8;
  font-size: 1.1rem;
  position: relative;
  z-index: 1;
}

/* Technology Stack */
.tech-stack {
  padding: 6rem 2rem;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.02) 0%, rgba(255, 255, 255, 0.01) 100%);
}

.tech-container {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.tech-item {
  padding: 2rem 1rem;
  background: var(--accent-bg);
  border-radius: 15px;
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.tech-item:hover {
  transform: translateY(-5px);
  background: rgba(255, 255, 255, 0.1);
}

.tech-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.tech-name {
  font-weight: 600;
  color: var(--text-primary);
}

/* Footer */
footer {
  padding: 2rem;
  border-top: 1px solid var(--border-color);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.01) 0%, rgba(255, 255, 255, 0.005) 100%);
}

.footer-simple {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-main p {
  color: var(--text-accent);
  font-size: 0.9rem;
}

.footer-legal {
  display: flex;
  gap: 1.5rem;
}

.footer-legal a {
  color: var(--text-accent);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.3s ease;
  opacity: 0.7;
}

.footer-legal a:hover {
  color: var(--text-secondary);
  opacity: 1;
}

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

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

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

.fade-in-up {
  animation: fadeInUp 0.8s ease-out;
}

.slide-in-left {
  animation: slideInLeft 0.8s ease-out;
}

.slide-in-right {
  animation: slideInRight 0.8s ease-out;
}

/* Responsive Design */
@media (max-width: 768px) {
  header {
    padding: 1rem;
  }
  
  .nav-links {
    display: none;
  }
  
  .hero {
    padding: 0 1rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .features,
  .tech-stack {
    padding: 4rem 1rem;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .feature-card {
    padding: 2rem;
  }
  
  .tech-grid {
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  }
  
  .footer-simple {
    flex-direction: column;
    text-align: center;
    gap: 1rem;
  }
}

/* Loading animation */
.loading {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--primary-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s ease;
}

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

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

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