.activity-overlay{z-index:8900;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);opacity:0;visibility:hidden;pointer-events:none;background:#faf7ef80;place-items:center;padding:24px;transition:opacity .2s,visibility .2s;display:grid;position:fixed;inset:0}.activity-overlay-visible{opacity:1;visibility:visible}body:has(.welcome-overlay) .activity-overlay{opacity:0;visibility:hidden}.activity-letter{text-align:center;color:#26352f;background:#fffcf5f2;border:1px solid #e1d6c4;border-radius:6px;width:min(360px,100%);padding:28px 22px;box-shadow:0 16px 48px #4c392818}.activity-letter p{font-family:var(--font-heading), sans-serif;text-wrap:balance;margin-top:20px;font-size:14px;font-weight:500;line-height:1.7}.activity-letter>span:last-child{color:#786957;margin-top:6px;font-size:12px;line-height:1.7;display:block}.activity-envelope{isolation:isolate;background:#eee1cc;border:1px solid #c6aa86;border-radius:3px;width:48px;height:34px;margin:4px auto 0;display:block;position:relative}.activity-envelope:after{content:"";z-index:2;clip-path:polygon(0 0,50% 58%,100% 0,100% 100%,0 100%);background:#e8d6bc;position:absolute;inset:0}.activity-envelope i{background:#fffdf8;border-top:2px solid #ad5939;animation:1.5s ease-in-out infinite activity-letter-float;position:absolute;inset:4px 7px}@keyframes activity-letter-float{0%,to{transform:translateY(-3px)}50%{transform:translateY(-11px)}}@media (prefers-reduced-motion:reduce){.activity-overlay{transition:none}.activity-envelope i{animation:none}}