/* berg-block.css */
.berg-block { margin: 1em 0; padding: 1em; border: 1px solid #ccc; border-radius: 8px; background: #f9f9f9; }
.berg-input { padding: 0.5em; margin-right: 0.5em; border-radius: 4px; border: 1px solid #bbb; }
.berg-send { padding: 0.5em 1em; border-radius: 4px; border: none; background: #0073aa; color: #fff; cursor: pointer; }
.berg-send[disabled] { background: #aaa; cursor: wait; }
.berg-content { margin-top: 1em; min-height: 2em; }
.demo-html { color: #0073aa; font-weight: bold; }