:root{color-scheme:dark light;--bg: #0b1224;--panel: #111827;--border: #1f2937;--text: #e6edf7;--muted: #9fb0c9;--primary: #00b2ff;--primary2: #00e0a4;--auth-w: 320px;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial}*{box-sizing:border-box}html,body{height:100%}body{margin:0;background:var(--bg);color:var(--text);line-height:1.6}.card{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:16px;margin:12px 0;box-shadow:0 8px 28px #0004}.row{display:flex;gap:12px;align-items:center;justify-content:space-between}input,textarea,button{font:inherit}input,textarea{width:100%;padding:10px 12px;border-radius:10px;border:1px solid var(--border);background:#0e1528;color:inherit}.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 14px;border-radius:10px;border:1px solid var(--border);background:#0e1528;color:inherit;cursor:pointer}.btn.block{width:100%}.btn.primary{background:linear-gradient(90deg,var(--primary),var(--primary2));color:#04121b;border:0}.btn.primary:disabled{opacity:.7;cursor:not-allowed}.btn:hover{border-color:var(--primary2)}.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}.container{max-width:880px;margin:24px auto;padding:0 16px}.chat{background:#0e1528;border:1px solid var(--border);border-radius:12px;padding:12px}.msg{padding:8px 10px;margin:6px 0;border-radius:10px}.msg.assistant{background:#0b1325}.msg.user{background:#101b33;text-align:right}.auth-page{min-height:100dvh;display:grid;place-items:center;padding:24px}.auth-card{width:min(480px,92vw);text-align:center;background:var(--panel);border:1px solid var(--border);border-radius:12px;box-shadow:0 10px 30px #0006;padding:24px}.auth-form{display:grid;gap:12px;margin:12px 0 16px;justify-items:center}.auth-form input,.auth-card .btn.block{width:min(var(--auth-w),90vw);justify-content:center}.auth-form input{text-align:center}.auth-form input::placeholder{text-align:center;color:var(--muted)}.notice{margin-top:12px;font-size:.95rem}.notice.ok{color:#22c55e}.notice.bad{color:#ef4444}.brand{display:inline-block;margin-bottom:12px;font-weight:800;letter-spacing:.3px;font-size:28px;line-height:1.1}.brand .api,.brand .conduit{background:linear-gradient(90deg,#4c8dff,#2dd4bf);-webkit-background-clip:text;background-clip:text;color:transparent}.brand .conduit{margin-left:4px;opacity:.95}.app-layout{display:flex;height:100vh;overflow:hidden}.sidebar{width:260px;background:#0b1224;border-right:1px solid var(--border);display:flex;flex-direction:column;flex-shrink:0}.sidebar-header{padding:16px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center}.sidebar-content{flex:1;padding:16px;overflow-y:auto}.chat-main{flex:1;display:flex;flex-direction:column;background:var(--panel);position:relative}.chat-header{padding:16px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;background:var(--panel)}.chat-messages{flex:1;padding:20px;overflow-y:auto;display:flex;flex-direction:column;gap:16px}.chat-input-container{padding:20px;border-top:1px solid var(--border);background:var(--panel)}.welcome-state{text-align:center;margin:40px auto;max-width:600px}.logo-container img{height:60px;margin-bottom:16px;border-radius:8px}.starter-prompts{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin-top:32px;width:100%}.prompt-btn{padding:16px;background:var(--bg);border:1px solid var(--border);border-radius:12px;text-align:left;cursor:pointer;transition:all .2s;color:var(--text);font-size:.95rem}.prompt-btn:hover{border-color:var(--primary);background:#1f2937}@media(max-width:768px){.sidebar{display:none}.app-layout{flex-direction:column}}