body{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#root{min-height:100vh}:root{--primary-color: #2563eb;--danger-color: #dc2626;--warning-color: #f59e0b;--success-color: #10b981;--text-color: #1f2937;--text-muted: #6b7280;--border-color: #e5e7eb;--bg-color: #ffffff;--bg-secondary: #f9fafb}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;color:var(--text-color);background-color:var(--bg-secondary)}.app{min-height:100vh;display:flex;flex-direction:column}.app-header{background-color:var(--primary-color);color:#fff;padding:2rem 1rem;box-shadow:0 2px 4px #0000001a}.header-content{max-width:900px;margin:0 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