:root{--primary-color:#007bff;--secondary-color:#6c757d;--accent-color:#28a745;--background-color:#f8f9fa;--surface-color:#ffffff;--text-color:#1f2937;--light-text-color:#6c757d;--border-color:#dee2e6;--shadow-color:rgba(0,0,0,0.1);--primary-green:#22a565;--light-gray:#f9fafb;--medium-gray:#e5e7eb;--dark-gray:#4b5563;--shadow-lg:0 10px 15px -3px rgba(0,0,0,0.1),0 4px 6px -2px rgba(0,0,0,0.05)}body{font-family:Arial,sans-serif;line-height:1.6}body,h1,h2,h3,h4,h5,h6{color:var(--text-color)}h1,h2,h3,h4,h5,h6{margin-bottom:.5em;line-height:1.2}h1{font-size:2.5em}h2{font-size:2em}h3{font-size:1.75em}h4{font-size:1.5em}*{box-sizing:border-box;margin:0;padding:0}a{color:var(--primary-color);text-decoration:none}a:hover{text-decoration:underline}button{cursor:pointer;border:none;background-color:transparent;padding:0}