.activity{margin:30px clamp(24px,7vw,110px) 50px;padding:clamp(28px,5vw,56px);border-radius:28px;background:#fff;box-shadow:0 18px 50px #17213d14}.activity h2{font-size:clamp(34px,5vw,58px);margin:10px 0}.activity-prompt{font-size:20px}.back{border:0;background:transparent;color:var(--blue);font-weight:800;cursor:pointer}.choices{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:28px 0}.choices button{min-height:90px;border:2px solid #d7e4f8;border-radius:18px;background:#f5f9ff;color:var(--ink);font-size:18px;font-weight:800;cursor:pointer}.choices button:hover{border-color:var(--blue);transform:translateY(-2px)}.chat-form{border-top:1px solid #ded8cc;padding-top:22px}.chat-form label,.setting{display:block;font-weight:800;margin-bottom:8px}.chat-form>div{display:flex;gap:8px}.chat-form input,.pin-form input,.setting input{width:100%;font-size:18px;padding:14px;border:1px solid #b9bfd0;border-radius:12px}.chat-form button,.pin-form button,#saveSettings{border:0;border-radius:12px;background:var(--blue);color:#fff;padding:14px 22px;font-weight:800;cursor:pointer}.pin-form{display:flex;gap:8px}.setting{margin:20px 0}.safety{padding:14px;border-radius:12px;background:#eef9f5}.error{color:#b72e24;font-weight:700}@media(max-width:800px){.choices{grid-template-columns:1fr}}