:root{--bg:#f7f8f9;--card:#ffffff;--text:#0c0e10;--muted:#697077;--muted-2:#9aa1a7;--accent:#0e9e6e;--accent-d:#0b8a60;--accent-soft:#e7f6ef;--accent-ring:rgba(14,158,110,0.22);--line:#e8eaed;--line-2:#dfe2e6;--danger:#d64545;--danger-bg:#fdecec;--ok:#0e9e6e;--ok-bg:#e7f6ef;--r:12px;--r-lg:18px;--r-xl:24px;--pill:999px;--shadow-sm:0 1px 2px rgba(12,14,16,0.06);--shadow:0 6px 20px -6px rgba(12,14,16,0.12),0 2px 6px rgba(12,14,16,0.04);--shadow-lg:0 20px 48px -16px rgba(12,14,16,0.22),0 4px 12px rgba(12,14,16,0.06);--font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,"Apple Color Emoji",sans-serif;--font-display:var(--font);--font-body:var(--font);--tap:56px}*{box-sizing:border-box}html{font-size:17px;-webkit-text-size-adjust:100%}body{margin:0;min-height:100dvh;color:var(--text);font-family:var(--font);line-height:1.5;letter-spacing:-.01em;background-color:var(--bg);background-image:radial-gradient(110% 70% at 50% -20%,rgba(14,158,110,.08),transparent 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var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-lg);padding:8px;z-index:100;animation:pop .15s ease-out both}@keyframes pop{0%{opacity:0;transform:translateY(-6px) scale(.99)}}.brain-pop .label{font-size:.74rem;text-transform:uppercase;letter-spacing:.07em;color:var(--muted-2);padding:8px 12px 4px}.brain-pop a,.brain-pop button{display:flex;align-items:center;gap:10px;width:100%;text-align:left;padding:11px 12px;border:none;background:transparent;border-radius:10px;font:inherit;font-size:.98rem;color:var(--text);text-decoration:none;cursor:pointer}.brain-pop a:hover,.brain-pop button:hover{background:var(--bg)}.brain-pop a.current{color:var(--accent);font-weight:600}.brain-pop .sep{height:1px;background:var(--line);margin:6px}.brain-pop .accent{color:var(--accent);font-weight:600}.tiles{display:grid;grid-gap:16px;gap:16px}.tile{display:flex;align-items:center;gap:20px;min-height:112px;padding:26px 28px;background:var(--card);border:1px solid 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