.topbar-actions{display:flex;flex-wrap:wrap;align-items:center;justify-content:flex-end;gap:12px;margin-left:auto}.site-auth{position:relative;z-index:50;color:var(--text,#f2efe7);font:0.92rem/1.35 "Segoe UI","Inter",system-ui,sans-serif}.site-auth.is-floating{position:fixed;top:14px;right:14px;z-index:1200;color:#f2efe7}.site-auth[hidden]{display:none !important}.site-auth-trigger{display:inline-flex;align-items:center;gap:8px;min-height:38px;padding:8px 12px;border:1px solid var(--panel-border,rgba(242,239,231,0.18));border-radius:4px;color:inherit;background:rgba(16,17,15,0.72);box-shadow:none;cursor:pointer;user-select:none;list-style:none}.site-auth-trigger::-webkit-details-marker{display:none}.site-auth-avatar{width:10px;height:10px;border-radius:2px;background:var(--muted,#94a3b8);box-shadow:0 0 0 3px rgba(242,239,231,0.08)}.site-auth.is-signed-in .site-auth-avatar{background:#22c55e;box-shadow:0 0 0 3px rgba(34,197,94,0.2)}.site-auth-panel{position:absolute;top:calc(100%+10px);right:0;display:grid;gap:12px;width:min(340px,calc(100vw - 28px));padding:14px;border:1px solid rgba(148,163,184,0.28);border-radius:4px;color:#0f172a;background:rgba(255,255,255,0.98);box-shadow:0 22px 60px rgba(15,23,42,0.22)}.site-auth:not([open]) .site-auth-panel{display:none}.site-auth-copy,.site-auth-user{color:#475569;font-size:0.88rem;line-height:1.45}.site-auth-user{color:#0f172a;font-weight:760}.site-auth-copy.error{color:#b91c1c}.site-auth-copy.success{color:#047857}.site-auth-form{display:grid;gap:10px;min-inline-size:0;margin:0;padding:0;border:0}.site-auth-form label{display:grid;gap:5px;color:#1e293b;font-size:0.86rem;font-weight:700}.site-auth-form input{min-height:40px;width:100%;border:1px solid #cbd5e1;border-radius:4px;padding:8px 10px;color:#0f172a;background:#ffffff;font:inherit;font-weight:500}.site-auth-actions,.site-auth-session-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.site-auth-actions button,.site-auth-session-actions button{min-height:40px;border:1px solid #cbd5e1;border-radius:4px;padding:8px 10px;color:#0f172a;background:#ffffff;font:inherit;font-weight:760;cursor:pointer}.site-auth-actions button:first-child{border-color:var(--accent,#d7b56d);color:#0a0a10;background:var(--accent,#d7b56d)}.site-auth-actions button:disabled,.site-auth-session-actions button:disabled{cursor:wait;opacity:0.66}@media (max-width:760px){.topbar-actions{width:100%;justify-content:space-between}.site-auth{margin-left:auto}.site-auth.is-floating{top:10px;right:10px}body.stem-trainer-public .site-auth.is-floating{top:112px;right:12px}}