@font-face{font-family:Manrope;src:url(/fonts/manrope-latin.woff2)format("woff2");font-weight:400 800;font-display:swap}@font-face{font-family:JetBrains Mono;src:url(/fonts/jetbrains-mono-latin-500.woff2)format("woff2");font-weight:500;font-display:swap}:root{--bg:#f5f8fa;--surface:#fff;--surface-2:#edf2f6;--border:#0d1e2c1a;--border-strong:#0d1e2c2e;--text:#0d1b26;--text-muted:#4b5e6d;--text-dim:#64798a;--accent:#0f766e;--accent-cyan:#0e7490;--accent-soft:#0f766e17;--on-accent:#fff;--danger:#b42318;--font:"Manrope", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--radius:18px;--radius-sm:12px;--header-h:72px}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);font-family:var(--font);-webkit-font-smoothing:antialiased;margin:0;font-size:17px;line-height:1.65}a{color:var(--accent);text-decoration:none}:focus-visible{outline:2px solid var(--accent-cyan);outline-offset:3px;border-radius:4px}.site-header{border-bottom:1px solid var(--border);background:#ffffffdb}.header-inner{justify-content:space-between;align-items:center;max-width:1160px;height:72px;margin:0 auto;padding:0 24px;display:flex}.brand{color:var(--text);align-items:center;gap:11px;font-weight:800;display:inline-flex}.brand img{width:34px;height:34px}.page{max-width:440px;margin:0 auto;padding:clamp(40px,8vw,88px) 24px}.page-wide{max-width:780px}h1{letter-spacing:-.02em;margin:0 0 8px;font-size:clamp(1.8rem,5vw,2.4rem)}.lead{color:var(--text-muted);margin:0 0 28px}.card{border:1px solid var(--border-strong);border-radius:var(--radius);background:var(--surface);padding:28px}.field{margin-bottom:18px;display:block}.field span{color:var(--text-muted);margin-bottom:6px;font-size:14px;font-weight:600;display:block}.field input{width:100%;font:inherit;color:var(--text);background:var(--bg);border:1px solid var(--border-strong);border-radius:var(--radius-sm);padding:12px 14px}.field input:focus{border-color:var(--accent);outline:none}.card-title{margin:0 0 12px;font-size:1.05rem}.field textarea{width:100%;font:inherit;color:var(--text);background:var(--bg);border:1px solid var(--border-strong);border-radius:var(--radius-sm);resize:vertical;padding:12px 14px}.field textarea:focus{border-color:var(--accent);outline:none}.progress{letter-spacing:.08em;text-transform:uppercase;color:var(--accent);margin:0 0 6px;font-size:13px;font-weight:700}.intro-list{margin:18px 0 0;padding-left:22px}.intro-list li{margin-bottom:10px}.intro-list strong{color:var(--text)}.intro-list span{color:var(--text-muted);font-size:15px}.review{margin:0 0 20px;padding:0;list-style:none}.review li{border-bottom:1px solid var(--border);padding:12px 0}.review-top{justify-content:space-between;align-items:baseline;gap:12px;display:flex}.review p{white-space:pre-line;margin:4px 0 0}.link-btn{font:inherit;color:var(--accent);cursor:pointer;background:0 0;border:0;padding:0;text-decoration:underline}.actions{flex-wrap:wrap;gap:10px;margin-top:8px;display:flex}.guide{margin:18px 0 0;padding:0;list-style:none}.guide li{border-top:1px solid var(--border);padding:14px 0}.guide li p{color:var(--text-muted);margin:6px 0 0;font-size:15px}.guide .example{color:var(--text-dim);white-space:pre-line;border-left:2px solid var(--border-strong);padding-left:12px;font-size:14px}.test-log{margin:0 0 18px;padding:0;list-style:none}.test-log li{border-bottom:1px solid var(--border);padding:10px 0}.test-log p{margin:0}.test-log .asked{color:var(--text-muted)}.test-log .answered{color:var(--text)}.btn{font:inherit;color:var(--on-accent);background:linear-gradient(135deg, var(--accent-cyan), var(--accent));cursor:pointer;border:0;border-radius:999px;justify-content:center;align-items:center;padding:12px 22px;font-weight:700;display:inline-flex}.btn:hover{filter:brightness(1.08)}.btn[disabled]{opacity:.55;cursor:not-allowed}.btn-block{width:100%}.btn-ghost{color:var(--text);border:1px solid var(--border-strong);background:0 0}.error{color:var(--danger);margin:0 0 16px;font-weight:600}.alt{text-align:center;color:var(--text-dim);margin:20px 0 0;font-size:15px}.numbers{margin:0 0 20px;padding:0;list-style:none}.numbers li{color:var(--text-muted);padding:8px 0}.numbers strong{color:var(--text)}.fine{color:var(--text-dim);margin:14px 0 0;font-size:14px}.status{min-height:1.6em;margin:18px 0 0;font-weight:600}.status-info{color:var(--text-muted)}.status-success{color:var(--accent)}.status-error{color:var(--danger)}.shell{min-height:calc(100vh - var(--header-h));align-items:stretch;display:flex}.shell-main{flex-direction:column;flex:1;min-width:0;min-height:0;display:flex}.sidebar{border-right:1px solid var(--border);background:var(--surface);flex-direction:column;flex:0 0 240px;gap:20px;width:240px;padding:24px 16px;display:flex}.sidebar nav{flex-direction:column;gap:2px;display:flex}.nav-item{border-radius:var(--radius-sm);color:var(--text-muted);padding:10px 14px;font-size:15px;font-weight:600}.nav-item:hover{background:var(--surface-2);color:var(--text)}.nav-item.active{background:var(--accent-soft);color:var(--accent)}.sidebar-account{border-top:1px solid var(--border);flex-direction:column;align-items:flex-start;gap:2px;margin-top:auto;padding:16px 14px 0;display:flex}.sidebar-account strong{color:var(--text)}.sidebar-account .muted{overflow-wrap:anywhere;font-size:14px}.sidebar-account .btn{margin-top:10px;padding:8px 16px;font-size:15px}.steps{margin:0;padding-left:22px}.steps li{color:var(--text-muted);margin-bottom:10px}.steps a{font-weight:700}@media (width<=900px){.shell{flex-direction:column}.sidebar{border-right:0;border-bottom:1px solid var(--border);flex-direction:row;flex:none;align-items:center;gap:16px;width:auto;padding:12px 16px}.sidebar nav{flex-direction:row;overflow-x:auto}.sidebar .nav-item{padding:8px 9px;font-size:14px}.sidebar-account{gap:8px;padding-left:10px}.sidebar-account .btn{padding:8px 12px}.sidebar-account{border-top:0;border-left:1px solid var(--border);flex-direction:row;align-items:center;gap:10px;margin-top:0;margin-left:auto;padding:0 0 0 16px}.sidebar-account .btn{margin-top:0}.sidebar-account strong,.sidebar-account .muted{display:none}}.muted{color:var(--text-dim)}.pad{padding:16px 20px}.chat-app{border-inline:1px solid var(--border);flex:1;grid-template-columns:340px 1fr;width:100%;max-width:1160px;min-height:0;margin:0 auto;display:grid}.conv-list{border-right:1px solid var(--border);overflow-y:auto}.conv-list ul{margin:0;padding:0;list-style:none}.conv-list-head{justify-content:space-between;align-items:baseline;padding:18px 20px 8px;display:flex}.conv-list-head h1{margin:0;font-size:1.3rem}.conv-item{text-align:left;width:100%;font:inherit;color:var(--text);border:0;border-bottom:1px solid var(--border);cursor:pointer;background:0 0;padding:14px 20px;display:block}.conv-item:hover,.conv-item.active{background:var(--surface)}.conv-top{justify-content:space-between;gap:12px;display:flex}.conv-top small{color:var(--text-dim)}.conv-preview{color:var(--text-muted);white-space:nowrap;text-overflow:ellipsis;font-size:15px;display:block;overflow:hidden}.thread{flex-direction:column;min-height:0;display:flex}.thread-empty{justify-content:center;align-items:center}.thread-head{border-bottom:1px solid var(--border);align-items:center;gap:14px;padding:14px 20px;display:flex}.back-btn{padding:8px 14px;display:none}.thread-body{flex-direction:column;flex:1;gap:10px;padding:20px;display:flex;overflow-y:auto}.bubble{border:1px solid var(--border);border-radius:16px;max-width:72%;padding:10px 14px}.bubble p{white-space:pre-wrap;overflow-wrap:anywhere;margin:0}.bubble small{color:var(--text-dim);margin-top:4px;font-size:12px;display:block}.bubble-in{background:var(--surface);border-bottom-left-radius:5px;align-self:flex-start}.bubble-out{background:var(--accent-soft);border-color:#0f766e3d;border-bottom-right-radius:5px;align-self:flex-end}@media (width<=760px){.chat-app{grid-template-columns:1fr}.chat-app .thread{display:none}.chat-app.has-selection .thread{display:flex}.chat-app.has-selection .conv-list{display:none}.back-btn{display:inline-flex}}