:root{--bg-primary: #0f1419;--bg-secondary: #15202b;--bg-tertiary: #1c2732;--bg-hover: #22303c;--bg-message: #192734;--text-primary: #e7e9ea;--text-secondary: #8b98a5;--text-muted: #536471;--accent: #1d9bf0;--accent-hover: #1a8cd8;--accent-glow: rgba(29, 155, 240, .2);--border: #2f3336;--border-light: #38444d;--success: #00ba7c;--glass: rgba(255, 255, 255, .03);--glass-border: rgba(255, 255, 255, .06);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 24px}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg-primary);color:var(--text-primary);min-height:100vh;-webkit-font-smoothing:antialiased}body.no-scroll{overflow:hidden;height:100vh}#root{min-height:100vh}.app{display:flex;height:100vh;background:var(--bg-primary);overflow:hidden}.sidebar{width:280px;background:var(--bg-secondary);border-right:1px solid 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