:root {
  --primary: #8b5cf6;
  --primary-hover: #7c3aed;
  --bg-dark: #0f172a;
  --bg-darker: #020617;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --glass: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.1);
  --accent: #38bdf8;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-darker);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Background Gradients */
.bg-glow {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background: 
    radial-gradient(circle at 10% 20%, rgba(139, 92, 246, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 90% 80%, rgba(56, 189, 248, 0.1) 0%, transparent 40%);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

nav {
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  backdrop-filter: blur(12px);
  background: rgba(2, 6, 23, 0.8);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  border-bottom: 1px solid var(--glass-border);
}

.logo {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -1px;
  background: linear-gradient(to right, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
  transition: color 0.3s;
}

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

/* Hero Section */
.hero {
  padding: 160px 0 80px;
  text-align: center;
}

h1 {
  font-size: clamp(40px, 8vw, 72px);
  line-height: 1.1;
  margin-bottom: 24px;
  font-weight: 800;
}

.hero p {
  font-size: 20px;
  color: var(--text-muted);
  max-width: 800px;
  margin: 0 auto 40px;
}

.cta-group {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 60px;
}

.btn {
  padding: 14px 32px;
  border-radius: 12px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary {
  background: var(--primary);
  color: white;
  box-shadow: 0 4px 20px rgba(139, 92, 246, 0.4);
}

.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
}

.hero-preview {
  margin-top: 40px;
  perspective: 1000px;
}

.hero-preview img {
  width: 100%;
  max-width: 900px;
  border-radius: 24px;
  box-shadow: 0 30px 60px rgba(0,0,0,0.5);
  border: 1px solid var(--glass-border);
  transform: rotateX(5deg);
  transition: transform 0.5s;
}

.hero-preview img:hover {
  transform: rotateX(0deg);
}

/* Features Section */
.section-title {
  text-align: center;
  margin-bottom: 60px;
}

.section-title h2 {
  font-size: 36px;
  margin-bottom: 16px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 24px;
  margin-bottom: 100px;
}

.feature-card {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  padding: 40px;
  border-radius: 24px;
  transition: all 0.3s;
}

.feature-card:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--primary);
  transform: translateY(-5px);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: rgba(139, 92, 246, 0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  margin-bottom: 24px;
}

.feature-card h3 {
  font-size: 20px;
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 15px;
}

/* Download Section */
.download-box {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(56, 189, 248, 0.1) 100%);
  border: 1px solid var(--glass-border);
  border-radius: 32px;
  padding: 80px 40px;
  text-align: center;
  margin-bottom: 100px;
}

footer {
  padding: 60px 0;
  border-top: 1px solid var(--glass-border);
  text-align: center;
  color: var(--text-muted);
  font-size: 14px;
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  h1 { font-size: 48px; }
  .features-grid { grid-template-columns: 1fr; }
}