:root{--bg-deep: #0a0c12;--bg-mid: #0f1219;--bg-radial: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(40, 60, 90, .25) 0%, transparent 50%), radial-gradient(ellipse 100% 100% at 50% 100%, rgba(30, 45, 70, .15) 0%, transparent 50%);--glass-bg: rgba(22, 28, 40, .55);--glass-border: rgba(120, 150, 200, .18);--glass-blur: 20px;--text-primary: #f0f4fc;--text-muted: #94a3b8;--text-subtle: #64748b;--accent: #60a5fa;--accent-muted: rgba(96, 165, 250, .25);--accent-border: rgba(96, 165, 250, .35);--radius: 16px;--radius-sm: 12px;--radius-btn: 12px}body[data-chat-theme=light]{background:#fff;color:#0f172a}body[data-chat-theme=dark]{background:#0a0c12;color:#f0f4fc}.liquid-glass-bg[data-theme=light]{--bg-deep: #ffffff;--bg-mid: #f8fafc;--bg-radial: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(241, 245, 249, .9) 0%, transparent 50%), radial-gradient(ellipse 100% 100% at 50% 100%, rgba(248, 250, 252, .8) 0%, transparent 50%);--glass-bg: rgba(255, 255, 255, .95);--glass-border: rgba(0, 0, 0, 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