:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--background:#f6f8fb;--foreground:#14213d;--muted:#5d6b82;--card:#fff;--card-border:#dfe6f1;--accent:#0f766e;--accent-strong:#115e59;--gold:#f7b801}*{box-sizing:border-box}html{min-height:100%}body{min-height:100vh;color:var(--foreground);background:radial-gradient(circle at 0 0,#f7b80138,#0000 34rem),linear-gradient(135deg,#f6f8fb 0%,#edf5f2 48%,#f9fbff 100%);margin:0;font-family:Arial,Helvetica,sans-serif}a{color:inherit;text-decoration:none}.page-shell{flex-direction:column;justify-content:center;gap:32px;width:min(100%,1080px);min-height:100vh;margin:0 auto;padding:56px 20px;display:flex}.intro{max-width:640px}h1{color:var(--accent-strong);letter-spacing:0;text-transform:uppercase;margin:0;font-size:1rem;font-weight:700}.link-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;display:grid}.activity-card{border:1px solid var(--card-border);text-align:center;background:#ffffffe0;border-radius:16px;justify-content:center;align-items:center;min-height:132px;padding:24px;transition:border-color .18s,transform .18s;display:flex}.activity-card:hover,.activity-card:focus-visible{border-color:#0f766e6b;outline:none;transform:translateY(-3px)}.activity-card strong{font-size:1.05rem;line-height:1.3;display:block}@media (max-width:700px){.page-shell{justify-content:flex-start;padding:36px 16px}.link-grid{grid-template-columns:1fr}.activity-card{min-height:112px}}