:root{--primary-color: #00d4ff;--secondary-color: #0099cc;--accent-color: #ff6b35;--success-color: #00ff88;--warning-color: #ffaa00;--error-color: #ff4444;--dark-bg: #0a0a0a;--dark-surface: #1a1a1a;--dark-card: #2a2a2a;--dark-border: #333333;--text-primary: #ffffff;--text-secondary: #cccccc;--text-muted: #888888;--gradient-primary: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);--gradient-secondary: linear-gradient(135deg, #ff6b35 0%, #ff8c42 100%);--gradient-dark: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 100%);--shadow-sm: 0 2px 4px rgba(0, 0, 0, .1);--shadow-md: 0 4px 8px rgba(0, 0, 0, .2);--shadow-lg: 0 8px 16px rgba(0, 0, 0, .3);--shadow-xl: 0 16px 32px rgba(0, 0, 0, .4);--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--border-radius-sm: 4px;--border-radius-md: 8px;--border-radius-lg: 12px;--border-radius-xl: 16px;--border-radius-full: 50%;--transition-fast: .15s ease;--transition-normal: .3s ease;--transition-slow: .5s ease}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:80px}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--dark-bg);color:var(--text-primary);line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.container{max-width:1200px;margin:0 auto;padding:0 1rem}@media(min-width:768px){.container{padding:0 2rem}}.text-gradient{background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.btn{display:inline-flex;align-items:center;justify-content:center;font-weight:600;border:none;cursor:pointer;transition:all .3s ease;text-decoration:none;font-family:inherit}.btn:focus-visible{outline:2px solid var(--primary-color);outline-offset:2px}.btn.btn-primary{background:var(--gradient-primary);color:var(--dark-bg)}.btn.btn-primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 10px 20px #00d4ff4d}.btn.btn-secondary{background:transparent;color:var(--primary-color);border:2px solid var(--primary-color)}.btn.btn-secondary:hover:not(:disabled){background:#00d4ff1a;transform:translateY(-2px)}.btn.btn-large{padding:1rem 2rem;font-size:1.1rem;border-radius:var(--border-radius-lg)}.btn:disabled{opacity:.6;cursor:not-allowed}section{padding:5rem 0}@media(max-width:768px){section{padding:3rem 0}}