*{margin:0;padding:0;box-sizing:border-box}:root{--bg: #fafafa;--bg-card: #ffffff;--bg-elevated: #ffffff;--text: #111827;--text-secondary: #4b5563;--text-muted: #9ca3af;--border: #f0f0f0;--border-hover: #d1d5db;--accent: #2563eb;--accent-soft: rgba(37, 99, 235, .06);--accent-hover: #1d4ed8;--success: #059669;--success-soft: rgba(5, 150, 105, .08);--radius: 8px;--radius-lg: 12px;--shadow-sm: 0 1px 2px rgba(0,0,0,.04);--shadow: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);--shadow-md: 0 4px 12px rgba(0,0,0,.06);--transition: .15s ease}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}button{cursor:pointer;font-family:inherit}.app-layout{display:flex;min-height:100vh}.sidebar{width:220px;border-right:1px solid var(--border);padding:28px 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