:root{--header-bg: #232b34;--header-text: #ffffff;--accent: #f2b01e;--accent-dark: #e0a015;--accent-ink: #2a2113;--accent-weak: #fdf3d9;--teal: #2f7d8c;--teal-dark: #276676;--bg: #f4f5f7;--panel: #ffffff;--border: #e2e5ea;--text: #232b34;--muted: #78808c;--error: #c0392b;--write: #b7791f;--ok: #2f855a;--radius: 12px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:var(--text)}*{box-sizing:border-box}body{margin:0;background:var(--bg)}button{font-family:inherit;cursor:pointer}.brand{display:flex;align-items:center;gap:10px}.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:7px;background:var(--accent);color:var(--accent-ink);font-weight:800;font-size:12px;letter-spacing:.5px}.brand-mark.big{width:52px;height:52px;border-radius:12px;font-size:20px}.brand-name{font-weight:700;font-size:16px}.login{display:flex;align-items:center;justify-content:center;height:100vh;background:linear-gradient(160deg,#fff 0%,var(--bg) 100%)}.login-card{background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:32px;width:340px;display:flex;flex-direction:column;gap:14px;box-shadow:0 8px 30px #1f24301a}.login-card input{padding:11px 12px;border:1px solid var(--border);border-radius:9px;font-size:14px}.login-card input:focus{outline:none;border-color:var(--accent)}.chat{display:flex;flex-direction:column;height:100vh;max-width:860px;margin:0 auto;background:var(--panel)}.chat header{display:flex;justify-content:space-between;align-items:center;padding:12px 18px;background:var(--header-bg);color:var(--header-text)}.chat header .muted{color:#b8bec7}.chat header .link{color:#ffd98a}.messages{flex:1;overflow-y:auto;padding:20px 18px 8px;display:flex;flex-direction:column;gap:18px;scroll-behavior:smooth}.welcome{margin:auto;text-align:center;display:flex;flex-direction:column;align-items:center;gap:14px}.welcome h2{margin:0;font-size:20px;font-weight:650}.suggestions{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;max-width:460px}.chip{background:var(--panel);border:1px solid var(--border);border-radius:999px;padding:8px 14px;font-size:13px;color:var(--text)}.chip:hover{border-color:var(--accent);background:var(--accent-weak)}.message.user{display:flex;justify-content:flex-end}.message.user .bubble{background:var(--accent);color:var(--accent-ink);padding:10px 14px;border-radius:14px 14px 4px;max-width:78%;white-space:pre-wrap;line-height:1.5}.message.assistant{display:flex;gap:12px;align-items:flex-start}.message.assistant .avatar{flex:none;width:28px;height:28px;border-radius:7px;background:var(--header-bg);color:var(--accent);font-weight:800;font-size:11px;display:flex;align-items:center;justify-content:center;margin-top:2px}.message.assistant .body{min-width:0;flex:1;display:flex;flex-direction:column;gap:8px}.markdown{line-height:1.6}.markdown>*:first-child{margin-top:0}.markdown>*:last-child{margin-bottom:0}.markdown h1,.markdown h2,.markdown h3{font-size:1.05em;margin:14px 0 6px}.markdown p{margin:8px 0}.markdown ul,.markdown ol{margin:8px 0;padding-left:22px}.markdown a{color:var(--teal)}.markdown code{background:var(--bg);padding:1px 5px;border-radius:4px;font-size:.9em}.markdown pre{background:var(--bg);padding:12px;border-radius:8px;overflow:auto}.markdown pre code{background:none;padding:0}.markdown table{border-collapse:collapse;width:100%;margin:8px 0;font-size:.92em}.markdown th,.markdown td{border:1px solid var(--border);padding:6px 9px;text-align:left}.markdown th{background:var(--bg);color:var(--teal-dark)}.thinking{font-size:13px;color:var(--muted);border-left:2px solid var(--border);padding-left:10px}.thinking summary{cursor:pointer}.thinking pre{white-space:pre-wrap;margin:6px 0 0;font-family:inherit}.thinking-dots{display:inline-flex;gap:5px;padding:6px 2px}.thinking-dots span{width:7px;height:7px;border-radius:50%;background:var(--muted);animation:blink 1.3s infinite ease-in-out both}.thinking-dots span:nth-child(2){animation-delay:.2s}.thinking-dots span:nth-child(3){animation-delay:.4s}@keyframes blink{0%,80%,to{opacity:.25}40%{opacity:1}}.tool{border:1px solid var(--border);border-radius:10px;background:var(--panel);font-size:13px;overflow:hidden}.tool-head{display:flex;align-items:center;gap:8px;width:100%;background:none;border:none;padding:8px 11px;text-align:left;color:var(--text)}.tool-head:hover{background:var(--bg)}.tool-icon{width:15px;text-align:center}.tool.done .tool-icon{color:var(--ok)}.tool.error .tool-icon{color:var(--error)}.tool-sys{font-weight:700;color:var(--teal);font-size:12px}.tool-action{font-weight:500}.tool-summary{color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:12px}.tool.awaiting{border-color:var(--accent);background:var(--accent-weak)}.badge{font-size:10px;text-transform:uppercase;letter-spacing:.4px;color:var(--write);border:1px solid var(--write);border-radius:4px;padding:0 5px}.preview{margin:0;border-top:1px solid var(--border);max-height:220px;overflow:auto;background:var(--bg);padding:10px;white-space:pre-wrap;font-size:12px}.confirm{border-top:1px solid var(--accent);padding:10px 11px}.confirm p{margin:0 0 8px;color:var(--accent-ink);font-weight:600}.confirm pre{background:#fff;border:1px solid var(--border);padding:8px;border-radius:6px;max-height:160px;overflow:auto;font-size:12px}.confirm-actions{display:flex;gap:8px;margin-top:8px}.spinner{width:13px;height:13px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.composer-wrap{position:relative}.composer{display:flex;gap:10px;padding:12px 18px 16px;border-top:1px solid var(--border);align-items:flex-end}.slash-menu{position:absolute;left:18px;right:18px;bottom:calc(100% - 6px);background:var(--panel);border:1px solid var(--border);border-radius:12px;box-shadow:0 10px 30px #1f243024;overflow:hidden;max-height:320px;overflow-y:auto;z-index:5}.slash-hint{padding:8px 14px;font-size:11px;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);border-bottom:1px solid var(--border)}.slash-item{display:flex;flex-direction:column;gap:2px;width:100%;text-align:left;background:none;border:none;border-radius:0;padding:9px 14px;color:var(--text)}.slash-item.active{background:var(--accent-weak)}.slash-name{font-weight:600;font-size:13px}.slash-desc{font-size:12px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.composer textarea{flex:1;resize:none;min-height:44px;max-height:160px;padding:12px;border:1px solid var(--border);border-radius:12px;font-family:inherit;font-size:14px;line-height:1.4}.composer textarea:focus{outline:none;border-color:var(--accent)}button{background:var(--accent);color:var(--accent-ink);border:none;border-radius:10px;padding:11px 18px;font-size:14px;font-weight:600}button:hover:not(:disabled){background:var(--accent-dark)}button:disabled{opacity:.5;cursor:default}button.secondary{background:var(--panel);color:var(--text);border:1px solid var(--border);font-weight:500}button.secondary:hover{background:var(--bg)}button.stop{background:var(--panel);color:var(--text);border:1px solid var(--border);width:44px;padding:11px 0;font-weight:500}button.link{background:none;color:var(--teal);padding:0;font-size:inherit;font-weight:500}.muted{color:var(--muted);font-weight:400;font-size:13px}.error{color:var(--error);font-size:13px;background:#fdecea;border:1px solid #f5c6c0;border-radius:8px;padding:8px 10px}