:root{--primary-color: #2c3e50;--secondary-color: #34495e;--accent-color: #3498db;--background-color: #006400;--text-color: #ecf0f1;--card-background: #ffffff;--button-background: #95a5a6;--button-hover: #7f8c8d}*{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-color:var(--background-color);color:var(--text-color)}button{cursor:pointer;font-size:1rem;padding:.5rem 1rem;border:2px solid var(--button-background);background-color:var(--button-background);color:var(--text-color);border-radius:4px;transition:all .2s ease-in-out}button:hover{background-color:var(--button-hover);border-color:var(--button-hover)}