.demo-chat{position:fixed;margin:auto;width:min(460px,calc(100vw - 32px));padding:28px;border:1px solid var(--line);border-radius:18px;background:var(--panel);color:var(--text);box-shadow:0 24px 80px #0005;max-height:calc(100vh - 32px);overflow:auto}.demo-chat::backdrop{background:#0008}.demo-chat h2{font-size:18px;margin:0 0 28px}.demo-chat h3{font-size:22px;line-height:1.3;margin:0 0 17px;font-weight:600}.demo-chat p{font-size:13px;line-height:1.6;color:var(--muted)}.demo-chat .demo-chat-status{border-block:1px solid var(--line);padding-block:18px;margin-block:20px}.demo-chat .demo-close{position:absolute;top:24px;right:24px;padding:4px;font-size:12px}.demo-chat>.button{margin-top:4px;width:100%}