:root{--bg: #F7F9FA;--card: #FFFFFF;--surface: #E4E9ED;--text: #1C1E21;--text-muted: #4B4F55;--muted: #4B4F55;--border: #D1D5DA;--card-assigned-text: #1C1E21;--card-assigned-muted: #3A3F45;--primary: #0078D4;--nav-bg: #0078D4;--nav-accent: #005EA6;--success: #28A745;--warning: #FFC107;--error: #DC3545}[data-theme=dark]{--bg: #121418;--card: #1E2128;--surface: #2A2E35;--text: #E1E3E6;--text-muted: #A0A4AB;--muted: #A0A4AB;--border: #353A42;--card-assigned-text: #0F172A;--card-assigned-muted: #1E293B;--primary: #0096FF;--nav-bg: #111827;--nav-accent: #0096FF;--success: #57D47A;--warning: #FFCA4A;--error: #FF6B6E}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,Helvetica Neue,Arial,"Apple Color Emoji","Segoe UI Emoji"}.container{max-width:1300px;margin:0 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