:root{--bg: #ffffff;--fg: #111827;--muted: #6b7280;--border: #e5e7eb;--card: #ffffff;--accent: #10b981}[data-theme=dark]{--bg: #0b0f14;--fg: #e5e7eb;--muted: #9aa4b2;--border: #233042;--card: #0f1620;--accent: #10b981}html,body,#root{background:var(--bg);color:var(--fg)}button,input,select,textarea{background:var(--card);color:var(--fg);border:1px solid var(--border);border-radius:8px;padding:8px 10px}button.ghost{background:transparent}.badge{background:var(--card);border:1px solid var(--border);border-radius:999px;padding:4px 10px;display:inline-block}*{box-sizing:border-box;-webkit-font-smoothing:antialiased}html,body,#root{margin:0;padding:0;height:100%;font-family:system-ui,-apple-system,BlinkMacSystemFont,Inter,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:var(--bg);color:var(--fg)}body,#root{display:flex;flex-direction:column;min-height:100vh}.app-shell{flex:1;display:flex;min-height:0}.chat-panel{flex:1;display:flex;flex-direction:column;background:var(--bg);color:var(--fg);border-left:1px solid var(--border);border-right:1px solid var(--border);max-width:800px;margin:0 auto;width:100%}.chat-messages{flex:1;overflow-y:auto;padding:16px;background:var(--bg)}.chat-input-row{border-top:1px solid var(--border);background:var(--card);padding:12px 16px;display:flex;gap:8px}.chat-input-row input[type=text],.chat-input-row textarea{flex:1;background:var(--card);color:var(--fg);border:1px solid var(--border);border-radius:10px;padding:10px 12px;font-size:15px;line-height:1.4}.chat-input-row button.send-btn{background:var(--accent);border:0;border-radius:10px;padding:10px 14px;font-size:15px;font-weight:500;color:#000;cursor:pointer}.chat-bubble{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:12px 14px;font-size:14px;line-height:1.45;margin-bottom:12px;white-space:pre-wrap;word-wrap:break-word}.chat-bubble.me{align-self:flex-end;background:var(--accent);color:#000;border-color:var(--accent)}.chat-bubble.twilight{align-self:flex-start}.streaming-cursor{display:inline-block;width:8px;background:var(--accent);border-radius:2px;animation:pulse 1s infinite;margin-left:2px;height:1em;vertical-align:text-bottom}@keyframes pulse{0%{opacity:1}50%{opacity:.2}to{opacity:1}}.chat-bubble-header{display:flex;align-items:center;justify-content:space-between;font-size:12px;font-weight:500;line-height:1.2;margin-bottom:4px;color:var(--fg);opacity:.7}.bubble-from{font-weight:600;opacity:.8}.bubble-text{font-size:14px;line-height:1.45;white-space:pre-wrap;word-wrap:break-word;color:var(--fg)}.speak-btn{background:transparent;border:0;color:var(--fg);opacity:.7;cursor:pointer;border-radius:6px;font-size:12px;line-height:1;padding:4px 6px}.speak-btn.playing{background:var(--accent);color:#000;opacity:1}