*,:before,:after{box-sizing:border-box}:root{--color-text-primary:#111827;--color-text-secondary:#6b7280;--color-text-info:#2563eb;--color-text-danger:#dc2626;--color-background-primary:#fff;--color-background-secondary:#f9fafb;--color-background-info:#eff6ff;--color-border-primary:#2563eb;--color-border-secondary:#d1d5db;--color-border-tertiary:#e5e7eb;--color-border-info:#93c5fd;--font-mono:ui-monospace, "SFMono-Regular", Menlo, Monaco, Consolas, monospace;--border-radius-lg:10px;--border-radius-md:6px}body{color:var(--color-text-primary);background:var(--color-background-primary);-webkit-font-smoothing:antialiased;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}#root{text-align:left;width:100%}.sidebar{border-right:.5px solid var(--color-border-tertiary);background:var(--color-background-secondary);flex-direction:column;width:236px;min-width:236px;display:flex;overflow-y:auto}.sidebar-backdrop{z-index:199;background:#00000040;display:none;position:fixed;inset:0}.sidebar-backdrop.is-open{display:block}.question-card{padding:2rem 2.5rem}.mobile-only{display:none}.desktop-only{display:inline}@media (width<=640px){.mobile-only{display:flex}.desktop-only{display:none}.sidebar{z-index:200;width:280px;min-width:0;transition:transform .25s cubic-bezier(.25,.46,.45,.94);position:fixed;top:0;bottom:0;left:0;transform:translate(-100%);box-shadow:4px 0 24px #0000001f}.sidebar.is-open{transform:translate(0)}.question-card{padding:1.25rem 1rem}.question-card h2{font-size:17px!important}}@keyframes spin{to{transform:rotate(360deg)}}.loader-spin{animation:.9s linear infinite spin}@keyframes barGrow{0%{width:0}}.bar-fill{animation:.5s cubic-bezier(.25,.46,.45,.94) both barGrow}.nav-btn{border:.5px solid var(--color-border-tertiary);cursor:pointer;width:28px;height:28px;color:var(--color-text-secondary);background:0 0;border-radius:6px;justify-content:center;align-items:center;font-size:16px;transition:background .12s,color .12s;display:flex}.nav-btn:hover:not(:disabled){background:var(--color-background-secondary);color:var(--color-text-primary)}.nav-btn:disabled{opacity:.3;cursor:default}