@import"https://fonts.googleapis.com/css2?family=Source+Sans+3:wght@400;500;600&display=swap";:root{--bg: #09090b;--bg-soft: #101013;--panel: #121215;--panel-border: #27272a;--text: #c8c8cf;--text-dim: #8c8c96;--user-bg: #18181b;--user-border: #2f2f35;--assistant-bg: #141418;--assistant-border: #2a2a31;--op-bg: #17171b;--op-border: #303036;--error-bg: #35151c;--error-border: #b23a52;--input-bg: #0f0f12;--input-border: #2a2a31;--accent: #9696a0}*{box-sizing:border-box}html,body{overscroll-behavior:none}body{margin:0;min-height:100vh;min-height:100svh;min-height:100dvh;font-family:"Source Sans 3",Segoe UI,Noto Sans,sans-serif;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}.page{min-height:100vh;display:grid;place-items:center;padding:16px}.chat-shell{width:min(980px,100%);border-radius:12px;border:none;background:var(--panel);padding:12px;display:grid;gap:10px;min-height:0}.history{min-height:64vh;max-height:72vh;overflow-y:auto;overflow-x:hidden;display:flex;flex-direction:column;gap:8px;padding:4px;border:none;border-radius:8px;background:transparent;min-height:0}.history-bottom{height:1px}.msg{border-radius:6px;padding:10px 12px;border:none;width:100%;max-width:100%;background:var(--assistant-bg);animation:fade-in .1s linear}.msg .chip{font-size:.69rem;text-transform:uppercase;letter-spacing:.07em;color:var(--text-dim)}.msg p{margin:7px 0 0;line-height:1.45;white-space:pre-wrap;word-break:break-word;overflow-wrap:anywhere}.msg.user{background:var(--user-bg)}.msg.llm_comment{background:#1a1a20}.msg.op_comment{background:#1e2822;color:#d9e8de}.msg.op_comment .chip{color:#9fc8ae}.msg.error{background:var(--error-bg);color:#ffd7df}.msg.error .chip{color:#ff97aa}.msg.loading{opacity:.85}.msg.loading .chip:after{content:" ...";animation:dots 1.2s steps(3,end) infinite}.composer{display:flex;align-items:flex-start;gap:10px;width:calc(100% - 8px);margin:0 auto}.composer textarea{width:auto;flex:1 1 auto;border-radius:8px;border:1px solid var(--input-border);background:var(--input-bg);color:var(--text);padding:10px 12px;resize:vertical;min-height:80px;font:inherit;line-height:1.45}.composer textarea::placeholder{color:#71717a}.composer textarea:hover{border-color:var(--input-border)}.composer textarea:focus-visible{outline:none;border-color:var(--input-border)}.composer button{flex:0 0 auto;border:none;border-radius:7px;width:44px;height:44px;padding:0;display:inline-flex;align-items:center;justify-content:center;font:inherit;font-weight:600;color:#c9c9d0;background:#18181b;cursor:pointer;transition:background-color .12s ease}.composer button svg{width:17px;height:17px}.composer button:hover:not(:disabled){background:#27272a}.composer button:disabled{opacity:.45;cursor:default}@keyframes fade-in{0%{opacity:0}to{opacity:1}}@keyframes dots{0%{opacity:.2}50%{opacity:.8}to{opacity:.2}}@media(max-width:720px){.page{padding:8px}.chat-shell{padding:12px}.history{min-height:58vh;max-height:66vh}.msg{max-width:100%}.composer{gap:8px}}