:root{--font-main: "Outfit", sans-serif;--bg-page: #e3e8fc;--bg-glass: rgba(255, 255, 255, .65);--bg-card: #ffffff;--bg-card-hover: #f8fafc;--text-primary: #1e293b;--text-secondary: #64748b;--text-muted: #94a3b8;--accent-primary: #111827;--accent-secondary: #6366f1;--border: rgba(255, 255, 255, .4);--glass-border: 1px solid rgba(255, 255, 255, .8);--glass-shadow: 0 4px 30px rgba(0, 0, 0, .03);--rail-bg: #ffffff;--sidebar-bg: rgba(255, 255, 255, .4);--radius-sm: 8px;--radius-md: 14px;--radius-lg: 24px;--radius-xl: 32px;--msg-user-bg: #111827;--msg-user-text: white;--msg-ai-bg: #ffffff;--msg-ai-text: #1e293b;--rail-width: 80px;--sidebar-width: 320px;--transition: .3s cubic-bezier(.4, 0, .2, 1)}.hidden{display:none!important}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-main);background:var(--bg-page);color:var(--text-primary);overflow:hidden;height:100vh;background:radial-gradient(circle at 10% 20%,#f2f6ff,#e3e8fc 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