.ace-app{--bg:#f8fafc;--bg-tint:#eef4ff;--surface:#fff;--surface-2:#f1f5f9;--surface-3:#e2e8f0;--text:#0f172a;--text-muted:#475569;--text-dim:#94a3b8;--border:#e2e8f0;--border-strong:#cbd5e1;--primary:#2563eb;--primary-2:#3b82f6;--primary-soft:#eff6ff;--primary-tint:#f5f9ff;--accent:#4f46e5;--accent-2:#6366f1;--accent-soft:#eef2ff;--success:#0f766e;--success-soft:#ecfdf5;--danger:#b91c1c;--danger-soft:#fef2f2;--warn:#b45309;--warn-soft:#fffbeb;--radius:16px;--radius-sm:12px;--radius-xs:8px;--shadow-xs:0 1px 2px #0f172a0a;--shadow-sm:0 1px 3px #0f172a0f, 0 1px 2px #0f172a0a;--shadow-md:0 4px 16px #2563eb0f, 0 2px 6px #0f172a0d;--shadow-lg:0 12px 32px #0f172a1a, 0 6px 12px #0f172a0f}.ace-app #themeToggle{display:none!important}.ace-app .topbar{background:#ffffffd1!important}.ace-app .example{border-color:#0f766e24!important;border-left-color:var(--success)!important}.ace-app .callout.tip{background:var(--primary-soft)}.ace-app mark{color:var(--primary);background:#2563eb24}.ace-app .exam-header{background:linear-gradient(135deg,#1d4ed8 0%,#2563eb 55%,#3b82f6 120%)}.ace-app .hero{background:radial-gradient(at 0 0,#ffffff24,#0000 60%),linear-gradient(135deg,#1e3a8a 0%,#2563eb 55%,#4f46e5 115%)}.ace-app{padding-top:48px}.ace-appbar{z-index:100;-webkit-backdrop-filter:blur(12px)saturate(160%);backdrop-filter:blur(12px)saturate(160%);background:#ffffffd1;border-bottom:1px solid #e2e8f0;align-items:center;gap:10px;height:48px;padding:0 16px;font-family:inherit;display:flex;position:fixed;inset:0 0 auto}.ace-appbar-brand{letter-spacing:-.01em;color:#0f172a;font-size:1.02rem;font-weight:700;text-decoration:none}.ace-appbar-brand span{color:#2563eb}.ace-appbar-sep{color:#cbd5e1}.ace-appbar-subject{color:#475569;white-space:nowrap;text-overflow:ellipsis;font-size:.9rem;font-weight:500;overflow:hidden}.ace-appbar-back{color:#334155;border:1px solid #e2e8f0;border-radius:9999px;flex-shrink:0;margin-left:auto;padding:5px 14px;font-size:.88rem;font-weight:500;text-decoration:none;transition:border-color .2s,color .2s}.ace-appbar-back:hover{color:#1d4ed8;border-color:#bfdbfe}.ace-app #sidebar{height:calc(100vh - 48px);top:48px}.ace-app .topbar{top:48px}@media (max-width:640px){.ace-appbar-subject,.ace-appbar-sep{display:none}}