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/* Keep large cover images and native file inputs inside the presentation card. */
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.activity-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:1rem}.activity-tile{display:block;min-width:0;padding:1.3rem;border:1px solid #dfe9e1;border-radius:16px;background:#fff;color:inherit;box-shadow:0 5px 20px #183a2a10}.activity-tile:hover{text-decoration:none;border-color:#8fb9a4;box-shadow:0 8px 24px #183a2a20}.activity-tile h2{margin:.55rem 0 1rem;font-size:1.35rem;overflow-wrap:anywhere}.activity-tile p{margin:.3rem 0;color:#5b706a}.activity-open{display:inline-block;margin-top:1rem;color:#176e5e;font-weight:700}@media(max-width:640px){.activity-grid{grid-template-columns:1fr}}
