:root{--bg-primary:#0a0e17;--bg-secondary:#111827;--bg-card:#1a2234;--border:#2d3748;--text-primary:#f3f4f6;--text-secondary:#9ca3af;--accent:#6366f1;--accent-hover:#818cf8;--success:#10b981;--warning:#f59e0b;--danger:#ef4444;--gradient-start:#6366f1;--gradient-end:#8b5cf6}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.6;min-height:100vh}.header{background:var(--bg-secondary);border-bottom:1px solid var(--border);padding:16px 32px;justify-content:space-between;position:-webkit-sticky;position:sticky;top:0;z-index:100}.header,.logo{display:flex;align-items:center}.logo{gap:12px}.logo-icon{width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px}.logo h1,.logo-icon{background:linear-gradient(135deg,var(--gradient-start),var(--gradient-end));font-weight:700}.logo h1{font-size:24px;-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.logo-subtitle{font-size:12px;color:var(--text-secondary);margin-top:-4px}.nav-links{display:flex;gap:24px}.nav-link{color:var(--text-secondary);text-decoration:none;font-size:14px;font-weight:500;transition:color .2s;display:flex;align-items:center;gap:6px}.nav-link:hover{color:var(--accent)}.hero{text-align:center;padding:60px 32px 40px;background:linear-gradient(180deg,var(--bg-secondary) 0,var(--bg-primary) 100%)}.hero h2{font-size:42px;font-weight:700;margin-bottom:16px;background:linear-gradient(135deg,#fff,var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero p{font-size:18px;color:var(--text-secondary);max-width:600px;margin:0 auto}.dashboard{padding:32px;max-width:1400px;margin:0 auto}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));grid-gap:24px;gap:24px;margin-bottom:32px}.service-card{background:var(--bg-card);border:1px solid var(--border);border-radius:16px;padding:24px;transition:all .3s ease;cursor:pointer;text-decoration:none;color:inherit;display:block}.service-card:hover{transform:translateY(-4px);border-color:var(--accent);box-shadow:0 8px 32px rgba(99,102,241,.2)}.service-icon{width:56px;height:56px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:28px;margin-bottom:16px}.service-icon.purple{background:linear-gradient(135deg,#6366f1,#8b5cf6)}.service-icon.blue{background:linear-gradient(135deg,#3b82f6,#06b6d4)}.service-icon.green{background:linear-gradient(135deg,#10b981,#34d399)}.service-icon.orange{background:linear-gradient(135deg,#f59e0b,#fbbf24)}.service-card h3{font-size:20px;font-weight:600;margin-bottom:8px}.service-card p{color:var(--text-secondary);font-size:14px;margin-bottom:16px}.service-status{display:flex;align-items:center;gap:8px;font-size:13px}.status-dot{width:8px;height:8px;border-radius:50%;background:var(--success)}.status-dot.offline{background:var(--danger)}.chatbox-section{background:var(--bg-card);border:1px solid var(--border);border-radius:16px;overflow:hidden;margin-bottom:32px}.chatbox-header{background:var(--bg-secondary);padding:16px 24px;border-bottom:1px solid var(--border);justify-content:space-between}.chatbox-header,.chatbox-title{display:flex;align-items:center}.chatbox-title{gap:12px}.chatbox-title h3{font-size:18px;font-weight:600}.model-badge{background:var(--accent);color:#fff;padding:4px 12px;border-radius:20px;font-size:12px;font-weight:500}.chatbox-body{height:400px;overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:16px}.message{max-width:80%;padding:12px 16px;border-radius:12px;font-size:14px;line-height:1.5}.message.user{align-self:flex-end;background:var(--accent);color:#fff;border-bottom-right-radius:4px}.message.assistant{align-self:flex-start;background:var(--bg-secondary);border:1px solid var(--border);border-bottom-left-radius:4px}.message.assistant pre{background:var(--bg-primary);padding:12px;border-radius:8px;overflow-x:auto;margin:8px 0}.message.assistant code{font-family:Fira Code,monospace;font-size:13px}.message.thinking{color:var(--text-secondary);font-style:italic}.chatbox-input{padding:16px 24px;border-top:1px solid var(--border);display:flex;gap:12px}.chatbox-input input{flex:1 1;background:var(--bg-secondary);border:1px solid var(--border);color:var(--text-primary);padding:14px 18px;border-radius:10px;font-size:14px;transition:border-color .2s}.chatbox-input input:focus{outline:none;border-color:var(--accent)}.chatbox-input input::placeholder{color:var(--text-secondary)}.chatbox-input button{background:linear-gradient(135deg,var(--gradient-start),var(--gradient-end));border:none;color:#fff;padding:14px 28px;border-radius:10px;font-size:14px;font-weight:500;cursor:pointer;transition:transform .2s,box-shadow .2s}.chatbox-input button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 4px 16px rgba(99,102,241,.4)}.chatbox-input button:disabled{opacity:.6;cursor:not-allowed}.settings-panel{background:var(--bg-card);border:1px solid var(--border);border-radius:16px;padding:24px;margin-bottom:32px}.settings-panel h3{font-size:16px;font-weight:600;margin-bottom:16px;display:flex;align-items:center;gap:8px}.settings-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));grid-gap:16px;gap:16px}.setting-item{display:flex;flex-direction:column;gap:6px}.setting-item label{font-size:12px;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px}.setting-item input,.setting-item select{background:var(--bg-secondary);border:1px solid var(--border);color:var(--text-primary);padding:10px 14px;border-radius:8px;font-size:14px}.setting-item input:focus,.setting-item select:focus{outline:none;border-color:var(--accent)}.footer{text-align:center;padding:32px;color:var(--text-secondary);font-size:13px;border-top:1px solid var(--border)}.spinner{width:16px;height:16px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite;display:inline-block}@keyframes spin{to{transform:rotate(1turn)}}@media (max-width:768px){.header{padding:16px;flex-direction:column;gap:16px}.hero h2{font-size:28px}.dashboard{padding:16px}.grid{grid-template-columns:1fr}.chatbox-body{height:300px}.message{max-width:90%}}