:root{--primary:#3b82f6;--secondary:#ef4444;--bg:#0f172a;--text:#f8fafc;--card:#1e293b}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;margin:0;padding:0}body{background-color:var(--bg);color:var(--text);-webkit-user-select:none;user-select:none;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.5;overflow:hidden}#root{flex-direction:column;height:100vh;display:flex}.app-container{padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);flex-direction:column;flex:1;display:flex}@media (width>=720px){body{background:radial-gradient(circle at 50% 0%, #1b2740 0%, var(--bg) 55%);padding:1.25rem 0}#root{background-color:var(--bg);border:1px solid #94a3b82e;border-radius:20px;width:100%;max-width:480px;height:calc(100vh - 2.5rem);margin:0 auto;box-shadow:0 24px 60px #00000080}}