:root{--bg-primary: #0a0a0f;--bg-secondary: #12121a;--bg-tertiary: #1a1a24;--bg-card: rgba(26, 26, 36, .8);--bg-glass: rgba(18, 18, 26, .85);--neon-cyan: #00f0ff;--neon-purple: #a855f7;--neon-pink: #ec4899;--neon-green: #22c55e;--gradient-hero: radial-gradient(800px 400px at 20% 0%, rgba(168, 85, 247, .15), transparent), radial-gradient(600px 350px at 80% 0%, rgba(0, 240, 255, .12), transparent), linear-gradient(180deg, #0a0a0f 0%, #12121a 100%);--gradient-accent: linear-gradient(135deg, var(--neon-purple), var(--neon-cyan));--gradient-button: linear-gradient(135deg, var(--neon-purple) 0%, var(--neon-cyan) 100%);--gradient-glow: 0 0 20px rgba(168, 85, 247, .4), 0 0 40px rgba(0, 240, 255, .2);--text-primary: #f8fafc;--text-secondary: #94a3b8;--text-muted: #64748b;--text-gradient: linear-gradient(135deg, var(--neon-cyan), var(--neon-purple));--border-default: rgba(148, 163, 184, .15);--border-hover: rgba(168, 85, 247, .4);--border-focus: rgba(0, 240, 255, .5);--chat-user-bg: linear-gradient(135deg, #1e1b4b, #312e81);--chat-ai-bg: rgba(30, 30, 40, .95);--chat-input-bg: rgba(26, 26, 36, .9);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .4), 0 2px 4px -2px rgba(0, 0, 0, .3);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .5), 0 4px 6px -4px rgba(0, 0, 0, .4);--shadow-glow: 0 0 30px rgba(168, 85, 247, .3), 0 0 60px rgba(0, 240, 255, .15);--space-xs: .25rem;--space-sm: .5rem;--space-md: 1rem;--space-lg: 1.5rem;--space-xl: 2rem;--space-2xl: 3rem;--space-3xl: 4rem;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--radius-full: 9999px;--transition-fast: .15s ease;--transition-normal: .2s ease;--transition-slow: .3s ease;--container-max: 1200px;--container-narrow: 800px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.6;min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:var(--neon-cyan);text-decoration:none;transition:color .2s ease}a:hover{color:var(--neon-purple)}button{font-family:inherit;cursor:pointer;border:none;background:none}input,textarea{font-family:inherit;font-size:inherit}::selection{background:var(--neon-purple);color:var(--text-primary)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-secondary)}::-webkit-scrollbar-thumb{background:var(--border-default);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--border-hover)}