:root{--bg: #141414;--bg-elevated: #1c1c1c;--bg-surface: #232323;--text: #c5c1b9;--text-bright: #e8e4dc;--text-muted: #807c74;--accent: #575ECF;--accent-hover: #6b72e0;--accent-muted: rgba(87, 94, 207, .12);--border: #2a2a2a;--success: #4a9;--error: #c55}*{margin:0;padding:0;box-sizing:border-box}body{background:var(--bg);color:var(--text);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:16px;line-height:1.6;height:100vh;display:flex;flex-direction:column;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.header{padding:0 24px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;flex-shrink:0;height:64px;background:#141414eb;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}.header-inner{max-width:960px;margin:0 auto;width:100%;display:flex;justify-content:space-between;align-items:center}.header-left{display:flex;align-items:center;gap:10px}.header-logo{text-decoration:none;display:flex;align-items:center;gap:10px}.logo-mark{width:28px;height:28px;background:var(--accent);border-radius:6px;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;color:#fff}.logo-text{font-size:15px;font-weight:600;color:var(--text-bright);letter-spacing:-.01em}.header-right{display:flex;gap:24px;align-items:center}.header a.nav-link{color:var(--text-muted);text-decoration:none;font-size:14px;transition:color .2s cubic-bezier(.4,0,.2,1)}.header a.nav-link:hover,.header a.nav-link.active{color:var(--text-bright)}.header .user-name{color:var(--text-muted);font-size:13px}.header button.logout-btn{background:none;border:1px solid var(--border);color:var(--text-muted);padding:5px 12px;border-radius:6px;cursor:pointer;font-family:inherit;font-size:12px;font-weight:500;transition:all .2s cubic-bezier(.4,0,.2,1)}.header button.logout-btn:hover{border-color:var(--error);color:var(--error)}.login-wrap{display:flex;justify-content:center;align-items:center;flex:1}.login-box{background:var(--bg-elevated);border:1px solid var(--border);border-radius:12px;padding:40px;width:360px}.login-box h2{font-size:18px;font-weight:600;color:var(--text-bright);margin-bottom:24px;text-align:center}.login-box input{width:100%;background:var(--bg);border:1px solid var(--border);color:var(--text);padding:11px 14px;border-radius:8px;font-family:inherit;font-size:14px;margin-bottom:12px;transition:border-color .2s}.login-box input:focus{outline:none;border-color:var(--accent)}.login-box input::placeholder{color:var(--text-muted)}.login-box button{width:100%;background:var(--accent);color:#fff;border:none;padding:11px;border-radius:8px;font-family:inherit;font-size:14px;font-weight:600;cursor:pointer;transition:background .2s cubic-bezier(.4,0,.2,1);margin-top:4px}.login-box button:hover{background:var(--accent-hover)}.login-error{color:var(--error);font-size:13px;margin-top:12px;text-align:center}.chat-wrap{display:flex;flex-direction:column;flex:1;overflow:hidden}.messages{flex:1;overflow-y:auto;padding:24px;max-width:760px;margin:0 auto;width:100%}.onboarding{max-width:560px;margin:40px auto 0;background:var(--bg-elevated);border:1px solid var(--border);border-radius:12px;padding:28px 32px;transition:opacity .3s ease,transform .3s ease}.onboarding.hidden{opacity:0;transform:translateY(-10px);pointer-events:none;position:absolute}.onboarding h3{font-size:16px;font-weight:600;color:var(--text-bright);margin-bottom:8px}.onboarding .subtitle{font-size:13px;color:var(--text-muted);margin-bottom:16px;line-height:1.5}.onboarding .warning{font-size:12px;color:var(--text-muted);background:#cc555514;border:1px solid rgba(204,85,85,.15);border-radius:6px;padding:8px 12px;margin-bottom:20px}.suggest-group{margin-bottom:14px}.suggest-group .group-label{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);margin-bottom:6px}.suggest-group .suggestions{display:flex;flex-wrap:wrap;gap:6px}.suggest-btn{background:var(--bg);border:1px solid var(--border);color:var(--text);padding:6px 12px;border-radius:16px;font-family:inherit;font-size:13px;cursor:pointer;transition:all .15s ease}.suggest-btn:hover{border-color:var(--accent);color:var(--text-bright);background:var(--accent-muted)}.ts-divider{display:flex;align-items:center;gap:12px;margin:16px 0;font-size:11px;color:var(--text-muted)}.ts-divider:before,.ts-divider:after{content:"";flex:1;height:1px;background:var(--border)}.msg{display:flex;margin-bottom:12px}.msg.user{justify-content:flex-end}.msg.assistant{justify-content:flex-start;gap:10px}.rook-avatar{width:28px;height:28px;border-radius:50%;background:var(--accent);color:#fff;font-weight:700;font-size:13px;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:2px}.msg-content{max-width:85%}.msg.user .msg-content{max-width:75%}.bubble{padding:12px 16px;font-size:14px;line-height:1.65;word-wrap:break-word;overflow-wrap:break-word}.msg.user .bubble{background:var(--accent-muted);border-radius:16px 16px 4px;color:var(--text-bright)}.msg.assistant .bubble{background:var(--bg-elevated);border:1px solid var(--border);border-radius:16px 16px 16px 4px}.bubble p{margin:0 0 8px}.bubble p:last-child{margin-bottom:0}.bubble strong{color:var(--text-bright);font-weight:600}.bubble em{font-style:italic}.bubble ul,.bubble ol{margin:6px 0;padding-left:20px}.bubble li{margin:2px 0}.bubble code{background:#ffffff0f;padding:1px 5px;border-radius:3px;font-family:SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace;font-size:.88em}.bubble sup{font-size:.75em;color:var(--accent);font-weight:600}.msg-sources{margin-top:6px}.msg-sources summary{font-size:11px;color:var(--text-muted);cursor:pointer;user-select:none;list-style:none}.msg-sources summary:before{content:"▸"}.msg-sources[open] summary:before{content:"▾"}.msg-sources .source-list{font-size:11px;color:var(--text-muted);margin-top:4px;padding-left:4px;line-height:1.6}.msg-sources .source-list div{padding:1px 0}.msg-meta{font-size:11px;color:var(--text-muted);margin-top:4px}.feedback-bar{display:flex;align-items:center;gap:6px;margin-top:6px}.fb-btn{background:none;border:1px solid var(--border);color:var(--text-muted);border-radius:6px;padding:2px 8px;font-size:13px;cursor:pointer;transition:all .15s ease;font-family:inherit}.fb-btn:hover{border-color:var(--accent);color:var(--accent)}.fb-btn.voted-good{border-color:var(--success);color:var(--success)}.fb-btn.voted-bad{border-color:var(--error);color:var(--error)}.fb-note{font-size:11px;color:var(--text-muted)}.typing-wrap{display:flex;gap:10px;align-items:flex-start;padding:0 24px 12px;max-width:760px;margin:0 auto;width:100%}.typing-bubble{background:var(--bg-elevated);border:1px solid var(--border);border-radius:16px 16px 16px 4px;padding:10px 16px;display:flex;gap:4px;align-items:center}.typing-dot{width:6px;height:6px;border-radius:50%;background:var(--text-muted);animation:typingBounce 1.2s infinite}.typing-dot:nth-child(2){animation-delay:.2s}.typing-dot:nth-child(3){animation-delay:.4s}@keyframes typingBounce{0%,60%,to{transform:translateY(0);opacity:.4}30%{transform:translateY(-4px);opacity:1}}.input-bar{border-top:1px solid var(--border);padding:16px 24px;display:flex;gap:12px;flex-shrink:0;max-width:760px;margin:0 auto;width:100%}.input-bar input{flex:1;background:var(--bg-elevated);border:1px solid var(--border);color:var(--text);padding:11px 16px;border-radius:8px;font-family:inherit;font-size:14px;transition:border-color .2s}.input-bar input:focus{outline:none;border-color:var(--accent)}.input-bar input::placeholder{color:var(--text-muted)}.input-bar button{background:var(--accent);color:#fff;border:none;padding:11px 24px;border-radius:8px;font-family:inherit;font-size:14px;font-weight:600;cursor:pointer;transition:background .2s cubic-bezier(.4,0,.2,1)}.input-bar button:hover{background:var(--accent-hover)}.input-bar button:disabled{opacity:.5;cursor:not-allowed}@media(max-width:640px){.header{padding:0 16px;height:56px}.header-right{gap:16px}.login-box{width:100%;margin:0 16px;padding:32px 24px}.messages{padding:16px}.input-bar{padding:12px 16px}.onboarding{margin:20px 16px 0;padding:20px}.msg-content{max-width:90%!important}}