:root{--bg-primary: #0a0a0a;--bg-card: #1a1a1a;--bg-input: #111;--bg-nav: #111;--bg-hover: #1f1f1f;--bg-overlay: rgba(0, 0, 0, .7);--border-primary: #222;--border-card: #2a2a2a;--border-input: #333;--text-primary: #e0e0e0;--text-heading: #fff;--text-secondary: #888;--text-muted: #666;--text-dim: #555;--accent-blue: #1d9bf0;--accent-green: #17bf63;--accent-red: #e0245e;--accent-orange: #f5a623;--accent-purple: #794bc4;--msg-incoming: #1a1a2e;--msg-bot: #0d3320;--msg-human: #332200;--warning-bg: #1a1000;--warning-border: #332200;--error-bg: #2a1015;--error-border: #e0245e;--success-bg: #0d2818;--info-bg: #0d1f30;--warning-toast-bg: #2a2000;--badge-bg: #333;--btn-secondary-bg: #333;--btn-secondary-text: #e0e0e0;--shadow: rgba(0, 0, 0, .4);--row-border: #111;--chart-tick: #666;--chart-tooltip-bg: #1a1a1a;--chart-tooltip-border: #333}.theme-light{--bg-primary: #f0f2f5;--bg-card: #ffffff;--bg-input: #f5f6f8;--bg-nav: #ffffff;--bg-hover: #e8eaed;--bg-overlay: rgba(0, 0, 0, .4);--border-primary: #e0e0e0;--border-card: #e0e0e0;--border-input: #d0d0d0;--text-primary: #333;--text-heading: #111;--text-secondary: #666;--text-muted: #888;--text-dim: #aaa;--msg-incoming: #e8f4fd;--msg-bot: #e6f7ef;--msg-human: #fff3e0;--warning-bg: #fff8e1;--warning-border: #ffc107;--error-bg: #fce4ec;--error-border: #ef5350;--success-bg: #e8f5e9;--info-bg: #e3f2fd;--warning-toast-bg: #fff3e0;--badge-bg: #e8eaed;--btn-secondary-bg: #e8eaed;--btn-secondary-text: #333;--shadow: rgba(0, 0, 0, .08);--row-border: #f0f0f0;--chart-tick: #888;--chart-tooltip-bg: #ffffff;--chart-tooltip-border: #e0e0e0}body{background:var(--bg-primary);color:var(--text-primary);transition:background .2s,color .2s}@keyframes fadeIn{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}@keyframes slideIn{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:translate(0)}}