:root{color-scheme:dark;--bg:#050505;--panel:#111;--line:rgba(255,255,255,.16);--muted:rgba(255,255,255,.56);--text:#f7f7f7;--gold:#ffb700;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}*{box-sizing:border-box}html,body{height:100%;margin:0;background:var(--bg);color:var(--text)}button,textarea{font:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}.chat-header{height:76px;padding:0 36px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:34px}.brand{font-size:18px;letter-spacing:.18em}.chat-header nav{display:flex;gap:26px;color:var(--muted);font-size:13px}.chat-header nav a{height:76px;display:flex;align-items:center;border-bottom:2px solid transparent}.chat-header nav a.active{color:#fff;border-color:var(--gold)}.header-actions{margin-left:auto;display:flex;gap:8px}.header-actions button{padding:7px 12px;border:1px solid var(--line);border-radius:16px;background:transparent;color:var(--muted);font-size:12px}.header-actions button:hover{color:#fff;border-color:rgba(255,255,255,.5)}.chat-page{height:calc(100% - 76px);display:flex;flex-direction:column;align-items:center}.messages{width:min(760px,calc(100% - 40px));flex:1;overflow:auto;padding:60px 0 160px}.welcome{min-height:280px;display:grid;place-content:center;text-align:center;gap:7px}.welcome h1{margin:0;font-size:25px;font-weight:400}.welcome p{margin:0;color:var(--muted);font-size:13px}.message{margin:0 0 28px;line-height:1.65}.message.user{display:flex;justify-content:flex-end}.user-bubble{max-width:72%;padding:11px 16px;border-radius:18px;background:#292929;white-space:pre-wrap;overflow-wrap:anywhere}.assistant-label{margin:0 0 7px;color:var(--gold);font-size:10px;letter-spacing:.12em}.assistant-bubble{white-space:pre-wrap;overflow-wrap:anywhere;font-size:15px}.assistant-bubble.live{color:var(--muted)}.typing{display:inline-flex;gap:4px;margin-left:7px;vertical-align:middle}.typing i{width:4px;height:4px;border-radius:50%;background:currentColor;animation:blink 1s infinite}.typing i:nth-child(2){animation-delay:.15s}.typing i:nth-child(3){animation-delay:.3s}@keyframes blink{0%,80%,100%{opacity:.25}40%{opacity:1}}.composer{position:fixed;bottom:24px;width:min(760px,calc(100% - 40px));padding:12px 14px 10px;border:1px solid rgba(255,255,255,.28);border-radius:20px;background:rgba(17,17,17,.97);box-shadow:0 15px 50px #000}.composer textarea{width:100%;min-height:28px;max-height:140px;padding:2px 2px 8px;border:0;outline:0;resize:none;background:transparent;color:#fff;line-height:1.5}.composer textarea::placeholder{color:var(--muted)}.composer-bottom{display:flex;align-items:center;gap:10px}.attach-button{width:30px;height:30px;border:1px solid var(--line);border-radius:50%;display:grid;place-items:center;color:var(--muted);font-size:20px;line-height:1;cursor:pointer}.attach-button:hover{color:#fff}.attach-button input{display:none}.stream-status{flex:1;color:var(--muted);font-size:11px}.send-button{width:30px;height:30px;border:0;border-radius:50%;background:#fff;color:#000;font-size:19px;line-height:1}.send-button:disabled{opacity:.35;cursor:wait}.attachment-preview{display:flex;gap:8px;padding-bottom:8px}.attachment{position:relative}.attachment img{display:block;width:44px;height:44px;object-fit:cover;border-radius:7px;border:1px solid var(--line)}.attachment button{position:absolute;right:-6px;top:-6px;width:18px;height:18px;padding:0;border:1px solid #000;border-radius:50%;background:#fff;color:#000;font-size:13px;line-height:15px}@media(max-width:640px){.chat-header{height:64px;padding:0 17px;gap:18px}.chat-header nav{gap:12px;font-size:12px}.chat-header nav a{height:64px}.header-actions button:last-child{display:none}.chat-page{height:calc(100% - 64px)}.messages{width:calc(100% - 32px);padding:36px 0 150px}.user-bubble{max-width:86%}.assistant-bubble{font-size:14px}.composer{width:calc(100% - 24px);bottom:12px}.welcome h1{font-size:22px}}