/* Input surface and action row follow the existing demo's final refinements. */
#chatForm.demo-composer{--composer-border:#e1e1e1;display:flex;flex-direction:column;gap:12px;padding:12px;border:1px solid var(--composer-border);border-radius:14px;background:var(--input);box-shadow:none;position:relative;container:composer/inline-size}
[data-theme=dark] #chatForm.demo-composer{--composer-border:var(--line)}
#chatForm.demo-composer:focus-within{border-color:var(--gold)}
#chatForm.demo-composer textarea{display:block;flex:0 0 auto;width:100%;min-height:32px;max-height:120px;margin:0;padding:4px 2px;border:0;border-radius:0;background:transparent;color:var(--tx);font:400 16px/24px -apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;resize:none;box-shadow:none;outline:none}
#chatForm.demo-composer textarea::placeholder{color:var(--mut);font-size:13px;opacity:1}
#chatForm.demo-composer .context-tag{align-self:flex-start;max-width:100%;margin:0;min-height:28px;font-size:11px}
#chatForm.demo-composer .chat-composer-actions{display:flex;align-items:center;justify-content:space-between;gap:4px;min-height:40px;min-width:0}
#chatForm.demo-composer .composer-more{position:relative;flex:0 0 30px;border:0}
#chatForm.demo-composer .composer-more>summary{display:grid;place-items:center;list-style:none;cursor:pointer;width:30px;height:36px;min-height:0;margin:0;padding:0;border:0;border-radius:0;background:transparent;color:var(--tx2)}
#chatForm.demo-composer .composer-more>summary::-webkit-details-marker{display:none}
#chatForm.demo-composer .composer-more>summary svg{width:21px;height:21px}
#chatForm.demo-composer .composer-more>summary:hover{background:var(--rec);border-radius:7px}
#chatForm.demo-composer .composer-more-menu{position:absolute;bottom:42px;left:0;z-index:35;width:210px;padding:6px;border:1px solid var(--line);border-radius:10px;background:var(--panel);box-shadow:0 8px 24px #0002}
#chatForm.demo-composer .composer-more-menu>button{display:flex;align-items:center;justify-content:flex-start;gap:9px;width:100%;min-height:40px;height:auto;padding:8px;border:0;border-radius:6px;background:transparent;color:var(--tx2);font-size:12px;text-align:left}
#chatForm.demo-composer .composer-more-menu>button:hover{background:var(--rec);color:var(--tx)}
#chatForm.demo-composer .composer-more-menu svg{width:18px;height:18px;flex-shrink:0}
#chatForm.demo-composer .clear-confirm{display:flex;gap:6px;padding:4px}
#chatForm.demo-composer .clear-confirm button{flex:1;min-height:36px;font-size:12px;background:var(--rec);border:0;border-radius:6px}
#chatForm.demo-composer .clear-confirm button:last-child{color:var(--goldtx);background:var(--goldbg)}
#chatForm.demo-composer .web-search-toggle{display:inline-flex;align-items:center;gap:5px;min-height:36px;height:36px;padding:4px;border:0;border-radius:4px;background:transparent;color:var(--tx2);font-size:12px;font-weight:400;white-space:nowrap}
#chatForm.demo-composer .web-search-toggle:disabled{opacity:.55;cursor:default}
#chatForm.demo-composer .web-search-toggle svg{width:18px;height:18px;flex-shrink:0}
#chatForm.demo-composer .composer-right{display:flex;align-items:center;gap:6px;margin-left:auto;min-width:0}
#chatForm.demo-composer .composer-mic{display:grid;place-items:center;width:34px;min-width:34px;height:34px;min-height:34px;padding:6px;border:0;border-radius:7px;background:transparent;color:var(--tx2)}
#chatForm.demo-composer .composer-mic svg{width:21px;height:21px}
#chatForm.demo-composer .composer-mic:hover{background:var(--rec);color:var(--tx)}
#chatForm.demo-composer .composer-mic[aria-pressed=true]{color:var(--gold);background:var(--goldsoft)}
#chatForm.demo-composer .send-button{margin:0;min-width:58px;min-height:40px;height:40px;padding:7px 12px;border:0;border-radius:8px;background:var(--goldbg);color:var(--goldtx);font-size:14px;font-weight:500;line-height:1.5;box-shadow:none}
#chatForm.demo-composer .send-button:hover:not(:disabled){filter:brightness(.96)}
#chatForm.demo-composer .send-button:disabled{opacity:.45;cursor:default;filter:none}
@media(max-width:800px){#chatForm.demo-composer{position:fixed;left:8px;right:8px;bottom:max(8px,env(safe-area-inset-bottom));margin:0;z-index:20;box-shadow:0 -8px 0 8px var(--bg)}#chatForm.demo-composer textarea{font-size:16px}}
@container composer (max-width:300px){#chatForm.demo-composer .chat-composer-actions{gap:2px}#chatForm.demo-composer .composer-right{gap:4px}}