:root{--bg-color: #1a1a1a;--text-color: #f0f0f0;--primary-color: #007bff;--secondary-color: #6c757d;--card-bg: #2a2a2a;--border-color: #444}body{background-color:var(--bg-color);color:var(--text-color);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;margin:0;padding:0}.container{max-width:1400px;margin:0 auto;padding:20px}h1,h2,h3{color:var(--primary-color)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:#1a1a1a}::-webkit-scrollbar-thumb{background:#444;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#555}