*{margin:0;padding:0;box-sizing:border-box;}:root{--neu-bg:#e0e5ec;--neu-light:#ffffff;--neu-dark:#a3b1c6;--primary:#667eea;--primary-dark:#764ba2;--secondary:#f093fb;--accent:#f5576c;--text-primary:#2d3748;--text-secondary:#4a5568;--text-muted:#718096;--text-light:#a0aec0;--glass-bg:rgba(255,255,255,0.4);--glass-border:rgba(255,255,255,0.5);--shadow-neu-out:12px 12px 24px rgba(163,177,198,0.6),-12px -12px 24px rgba(255,255,255,0.8);--shadow-neu-in:inset 6px 6px 12px rgba(163,177,198,0.5),inset -6px -6px 12px rgba(255,255,255,0.7);--shadow-elevation:6px 6px 12px rgba(163,177,198,0.4),-6px -6px 12px rgba(255,255,255,0.5);}body.dark-mode{--neu-bg:#2d3748;--neu-light:#4a5568;--neu-dark:#1a202c;--text-primary:#e2e8f0;--text-secondary:#cbd5e0;--text-muted:#a0aec0;--glass-bg:rgba(45,55,72,0.6);--shadow-neu-out:8px 8px 16px rgba(0,0,0,0.4),-8px -8px 16px rgba(74,85,104,0.1);}html{scroll-behavior:smooth;}body{font-family:'Segoe 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