@import "https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,400&family=DM+Mono:wght@400;500&display=swap";:root{--bg:#0c0c10;--surface:#111116;--surface-2:#17171d;--border:#1e1e26;--border-2:#2a2a34;--text:#e8e8f0;--text-2:#8888a0;--text-3:#55556a;--accent:#7c6dfa;--accent-2:#a78bfa;--accent-glow:#7c6dfa2e;--red:#f87171;--green:#34d399;--yellow:#fbbf24;--radius-sm:6px;--radius:10px;--radius-lg:14px;--sidebar-w:240px;--transition:.16s ease}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-font-smoothing:antialiased;font-size:15px}body{background:var(--bg);color:var(--text);font-family:DM Sans,system-ui,sans-serif;line-height:1.6}button{cursor:pointer;font-family:inherit}input,select{font-family:inherit}a{color:inherit;text-decoration:none}.loading-screen{background:var(--bg);justify-content:center;align-items:center;height:100vh;display:flex}.spinner{border:2px solid var(--border-2);border-top-color:var(--accent);border-radius:50%;width:28px;height:28px;animation:.7s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.app-layout{height:100vh;display:flex;overflow:hidden}.sidebar{width:var(--sidebar-w);min-width:var(--sidebar-w);background:var(--surface);border-right:1px solid var(--border);flex-direction:column;display:flex;overflow:hidden}.sidebar-logo{border-bottom:1px solid var(--border);align-items:center;gap:10px;min-height:62px;padding:20px 18px 14px;display:flex}.logo-full{object-fit:contain;width:auto;height:32px}.logo-fallback{align-items:center;gap:8px;display:flex}.logo-icon{font-size:22px;line-height:1}.logo-text{letter-spacing:-.02em;color:var(--text);font-size:16px;font-weight:600}.sidebar-nav{flex-direction:column;flex:1;gap:2px;padding:10px 10px 0;display:flex;overflow-y:auto}.nav-item{border-radius:var(--radius-sm);color:var(--text-2);text-align:left;width:100%;transition:color var(--transition), background var(--transition);background:0 0;border:none;align-items:center;gap:10px;padding:9px 12px;font-size:14px;font-weight:450;display:flex}.nav-item:hover{color:var(--text);background:var(--surface-2)}.nav-item.active{color:var(--text);background:var(--surface-2);font-weight:500}.nav-icon{font-size:15px;line-height:1}.sidebar-footer{border-top:1px solid var(--border);padding:14px}.user-info{align-items:center;gap:10px;padding:6px 0 10px;display:flex}.avatar{background:var(--accent-glow);border:1px solid var(--border-2);width:34px;height:34px;color:var(--accent-2);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:13px;font-weight:600;display:flex}.user-details{min-width:0}.user-name{white-space:nowrap;text-overflow:ellipsis;font-size:13px;font-weight:500;overflow:hidden}.user-email{color:var(--text-3);white-space:nowrap;text-overflow:ellipsis;font-size:11px;overflow:hidden}.btn-logout{border-radius:var(--radius-sm);width:100%;color:var(--text-2);border:1px solid var(--border);transition:all var(--transition);background:0 0;padding:8px;font-size:13px}.btn-logout:hover{background:var(--surface-2);color:var(--red);border-color:var(--red)}.main-content{flex-direction:column;flex:1;gap:20px;padding:28px 32px;display:flex;overflow-y:auto}.page-header{justify-content:space-between;align-items:flex-start;gap:16px;display:flex}.page-header h2{letter-spacing:-.02em;font-size:20px;font-weight:600}.page-subtitle{color:var(--text-2);margin-top:2px;font-size:13px}.error-banner{border-radius:var(--radius-sm);color:var(--red);background:#f8717114;border:1px solid #f8717133;padding:10px 14px;font-size:13px}.empty-state{text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:8px;padding:60px 20px;display:flex}.empty-icon{margin-bottom:4px;font-size:36px;line-height:1}.empty-title{font-size:15px;font-weight:500}.empty-sub{color:var(--text-2);font-size:13px}.btn-upload{border-radius:var(--radius-sm);background:var(--accent);color:#fff;transition:opacity var(--transition), transform var(--transition);border:none;align-items:center;gap:6px;padding:9px 16px;font-size:14px;font-weight:500;display:inline-flex}.btn-upload:hover:not(:disabled){opacity:.88}.btn-upload:active:not(:disabled){transform:scale(.98)}.btn-upload:disabled{opacity:.5;cursor:not-allowed}.btn-danger{border-radius:var(--radius-sm);color:var(--red);transition:all var(--transition);background:0 0;border:1px solid #f871714d;padding:8px 14px;font-size:13px;font-weight:500}.btn-danger:hover{border-color:var(--red);background:#f8717114}.btn-ask{border-radius:var(--radius-sm);background:var(--surface-2);color:var(--text);border:1px solid var(--border-2);transition:all var(--transition);padding:6px 12px;font-size:12px;font-weight:500}.btn-ask:hover:not(:disabled){background:var(--accent-glow);border-color:var(--accent);color:var(--accent-2)}.btn-ask:disabled{opacity:.4;cursor:not-allowed}.btn-delete{border-radius:var(--radius-sm);color:var(--text-3);transition:color var(--transition);background:0 0;border:none;padding:6px 10px;font-size:12px}.btn-delete:hover{color:var(--red)}.btn-icon{border-radius:var(--radius-sm);width:26px;height:26px;color:var(--text-3);transition:all var(--transition);background:0 0;border:none;justify-content:center;align-items:center;font-size:12px;display:flex}.btn-icon:hover{color:var(--red);background:#f871711a}.doc-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px;display:grid}.doc-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);transition:border-color var(--transition), box-shadow var(--transition);flex-direction:column;gap:8px;padding:16px;display:flex}.doc-card:hover{border-color:var(--border-2);box-shadow:0 4px 24px #0000004d}.doc-card-top{justify-content:space-between;align-items:center;display:flex}.doc-file-icon{font-size:20px;line-height:1}.doc-name{white-space:nowrap;text-overflow:ellipsis;font-size:13px;font-weight:500;line-height:1.4;overflow:hidden}.doc-meta{color:var(--text-3);font-family:DM Mono,monospace;font-size:11px}.doc-actions{align-items:center;gap:6px;margin-top:4px;display:flex}.badge{border-radius:100px;align-items:center;padding:2px 8px;font-family:DM Mono,monospace;font-size:11px;font-weight:500;display:inline-flex}.badge-ready{color:var(--green);background:#34d3991a;border:1px solid #34d39933}.badge-processing{color:var(--yellow);background:#fbbf241a;border:1px solid #fbbf2433}.badge-error{color:var(--red);background:#f871711a;border:1px solid #f8717133}.chat-layout{flex-direction:column;flex:1;min-height:0;display:flex;overflow:hidden}.query-controls-bar{border-bottom:1px solid var(--border);background:var(--surface);flex-shrink:0;align-items:center;gap:12px;padding:12px 20px;display:flex}.field{align-items:center;gap:8px;display:flex}.field label{color:var(--text-2);white-space:nowrap;font-size:12px}.field select{border-radius:var(--radius-sm);background:var(--surface-2);border:1px solid var(--border-2);color:var(--text);cursor:pointer;transition:border-color var(--transition);outline:none;padding:6px 10px;font-size:13px}.field select:focus{border-color:var(--accent)}.chat-messages{scroll-behavior:smooth;flex-direction:column;flex:1;gap:14px;padding:20px 24px;display:flex;overflow-y:auto}.message{display:flex}.message.user{justify-content:flex-end}.message.assistant{justify-content:flex-start}.message-bubble{border-radius:var(--radius-lg);max-width:72%;padding:12px 16px;font-size:14px;line-height:1.65}.message.user .message-bubble{background:var(--accent);color:#fff;border-bottom-right-radius:var(--radius-sm)}.message.assistant .message-bubble{background:var(--surface);border:1px solid var(--border);color:var(--text);border-bottom-left-radius:var(--radius-sm)}.message-bubble.typing{align-items:center;gap:5px;padding:14px 18px;display:flex}.message-bubble.typing span{background:var(--text-3);border-radius:50%;width:6px;height:6px;animation:1.2s ease-in-out infinite bounce;display:block}.message-bubble.typing span:first-child{animation-delay:0s}.message-bubble.typing span:nth-child(2){animation-delay:.15s}.message-bubble.typing span:nth-child(3){animation-delay:.3s}@keyframes bounce{0%,60%,to{transform:translateY(0)}30%{transform:translateY(-5px)}}.chat-input-bar{border-top:1px solid var(--border);background:var(--surface);flex-shrink:0;align-items:center;gap:10px;padding:14px 20px;display:flex}.chat-input-bar input{border-radius:var(--radius);background:var(--surface-2);border:1px solid var(--border-2);color:var(--text);transition:border-color var(--transition);outline:none;flex:1;padding:10px 14px;font-size:14px}.chat-input-bar input::placeholder{color:var(--text-3)}.chat-input-bar input:focus{border-color:var(--accent)}.chat-input-bar input:disabled{opacity:.5}.chat-input-bar button{border-radius:var(--radius);background:var(--accent);color:#fff;transition:opacity var(--transition);white-space:nowrap;border:none;padding:10px 20px;font-size:14px;font-weight:500}.chat-input-bar button:hover:not(:disabled){opacity:.85}.chat-input-bar button:disabled{opacity:.4;cursor:not-allowed}.sources{border-top:1px solid #ffffff0f;margin-top:10px;padding-top:10px}.sources-label{color:var(--text-3);text-transform:uppercase;letter-spacing:.06em;margin-bottom:6px;font-size:11px}.sources-list{flex-wrap:wrap;gap:6px;display:flex}.source-tag{background:var(--surface-2);border:1px solid var(--border-2);color:var(--text-2);border-radius:100px;align-items:center;padding:2px 8px;font-family:DM Mono,monospace;font-size:11px;display:inline-flex}.history-list{flex-direction:column;gap:12px;display:flex}.history-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);transition:border-color var(--transition);flex-direction:column;gap:8px;padding:16px;display:flex}.history-card:hover{border-color:var(--border-2)}.history-card-header{justify-content:space-between;align-items:center;display:flex}.history-date{color:var(--text-3);font-family:DM Mono,monospace;font-size:11px}.history-question{color:var(--text);font-size:14px;font-weight:500;line-height:1.5}.history-answer{color:var(--text-2);-webkit-line-clamp:4;-webkit-box-orient:vertical;font-size:13px;line-height:1.6;display:-webkit-box;overflow:hidden}.auth-container{background:var(--bg);background-image:radial-gradient(80% 60% at 50% -20%,#7c6dfa1f,#0000);justify-content:center;align-items:center;min-height:100vh;padding:24px;display:flex}.auth-card{border-radius:var(--radius-lg);background:var(--surface);border:1px solid var(--border);width:100%;max-width:380px;padding:36px 32px;box-shadow:0 24px 80px #00000080}.auth-logo{height:36px;margin-bottom:24px;display:block}.auth-card h2{letter-spacing:-.02em;margin-bottom:4px;font-size:22px;font-weight:600}.auth-subtitle{color:var(--text-2);margin-bottom:28px;font-size:13px}.auth-card form{flex-direction:column;gap:0;display:flex}.auth-card input{border-radius:var(--radius-sm);border:1px solid var(--border-2);background:var(--bg);width:100%;color:var(--text);transition:border-color var(--transition);outline:none;margin-bottom:10px;padding:10px 12px;font-size:14px}.auth-card input::placeholder{color:var(--text-3)}.auth-card input:focus{border-color:var(--accent)}.auth-card 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0}::-webkit-scrollbar-thumb{background:var(--border-2);border-radius:99px}::-webkit-scrollbar-thumb:hover{background:var(--text-3)}.text-muted{color:var(--text-2)}.text-xs{font-size:12px}.tooltip-wrap{align-items:center;margin-left:6px;display:inline-flex;position:relative}.tooltip-icon{background:var(--border-2);width:15px;height:15px;color:var(--text-2);cursor:default;border-radius:50%;justify-content:center;align-items:center;font-size:10px;font-weight:600;display:inline-flex}.tooltip-text{background:var(--surface-2);border:1px solid var(--border-2);color:var(--text);border-radius:var(--radius);z-index:10;pointer-events:none;width:220px;padding:8px 10px;font-size:12px;line-height:1.5;display:none;position:absolute;bottom:125%;left:50%;transform:translate(-50%)}.tooltip-wrap:hover .tooltip-text{display:block}