.block>.block-head{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg) var(--r-lg) 0 0;margin-bottom:0;padding:12px 18px}.block>.block-head+*{background:var(--surface);border:1px solid var(--border);border-radius:0 0 var(--r-lg) var(--r-lg);box-shadow:var(--shadow-sm);border-top:0}.block--folded>.block-head{border-radius:var(--r-lg);box-shadow:var(--shadow-sm)}.block-head .t{margin-right:auto}.block>.block-head,.block-head button,.block-head a{cursor:pointer}.block-head input,.block-head select,.block-head textarea{cursor:auto}.block-fold{border-radius:var(--r-sm);width:28px;height:28px;color:var(--muted);cursor:pointer;transition:background var(--t-fast) var(--ease-out), color var(--t-fast) var(--ease-out);background:0 0;border:1px solid #0000;flex:none;justify-content:center;align-items:center;display:inline-flex}.block-fold:hover{background:var(--surface-2);color:var(--fg)}.block-fold svg{transition:transform var(--t-fast) var(--ease-out)}.block-fold[aria-expanded=false] svg{transform:rotate(180deg)}.block--folded .block-head>:not(.t):not(.block-fold){display:none}