:root{--font-family: "Inter", system-ui, Avenir, Helvetica, Arial, sans-serif;--bg-color: #0f172a;--text-color: #f1f5f9}body{margin:0;min-width:320px;min-height:100vh;background-color:var(--bg-color);color:var(--text-color);font-family:var(--font-family);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}.app-container{max-width:800px;margin:0 auto;padding:32px 16px}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:#1e293b}::-webkit-scrollbar-thumb{background:#475569;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#64748b}