:root{--primary: #1a73e8;--primary-dark: #1557b0;--success: #34a853;--warning: #fbbc04;--error: #ea4335;--gray-50: #f8f9fa;--gray-100: #f1f3f4;--gray-200: #e8eaed;--gray-300: #dadce0;--gray-400: #bdc1c6;--gray-500: #9aa0a6;--gray-600: #80868b;--gray-700: #5f6368;--gray-800: #3c4043;--gray-900: #202124}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:var(--gray-50);color:var(--gray-900)}.container{max-width:1200px;margin:0 auto;padding:20px}.card{background:#fff;border-radius:8px;box-shadow:0 1px 3px #0000001a;padding:20px;margin-bottom:20px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 20px;border:none;border-radius:4px;font-size:14px;font-weight:500;cursor:pointer;transition:all 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