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h1{font-size:1.5rem;color:#333;margin:0}.content{flex:1;padding:2rem;overflow-y:auto}.overlay{display:none}@media (max-width: 768px){.sidebar{transform:translate(-100%)}.sidebar.open{transform:translate(0)}.close-btn{display:block}.main-content{margin-left:0}.menu-btn{display:block}.overlay{display:block;position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;z-index:999}}.loading{display:flex;justify-content:center;align-items:center;height:100vh;font-size:1.5rem;color:#fff}*{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;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}#root{min-height:100vh}