@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap";
:root{--bg-primary:#0a0a0f;--bg-secondary:#12121a;--bg-card:#1a1a2e;--bg-card-hover:#1f1f35;--bg-glass:#1a1a2eb3;--border:#ffffff0f;--border-active:#6366f166;--text-primary:#f0f0f5;--text-secondary:#9ca3af;--text-muted:#6b7280;--accent:#6366f1;--accent-light:#818cf8;--accent-glow:#6366f126;--success:#10b981;--warning:#f59e0b;--danger:#ef4444;--gradient-1:linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a78bfa 100%);--gradient-2:linear-gradient(135deg, #0ea5e9 0%, #6366f1 100%);--gradient-3:linear-gradient(135deg, #10b981 0%, #0ea5e9 100%);--shadow-sm:0 1px 3px #0000004d;--shadow-md:0 4px 20px #0006;--shadow-lg:0 8px 40px #00000080;--shadow-glow:0 0 30px #6366f11a;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:24px;--transition:.2s cubic-bezier(.4, 0, .2, 1)}*{box-sizing:border-box;margin:0;padding:0}html,body{background:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;min-height:100vh;font-family:Inter,-apple-system,sans-serif;line-height:1.6}a{color:inherit;text-decoration:none}button{cursor:pointer;border:none;outline:none;font-family:inherit}input,textarea{outline:none;font-family:inherit}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#fff3}.app-layout{min-height:100vh;display:flex}.sidebar{background:var(--bg-secondary);border-right:1px solid var(--border);z-index:100;width:260px;transition:transform var(--transition);flex-direction:column;padding:24px 16px;display:flex;position:fixed;top:0;bottom:0;left:0}.sidebar-logo{border-bottom:1px solid var(--border);align-items:center;gap:12px;margin-bottom:24px;padding:0 8px 24px;display:flex}.sidebar-logo .logo-icon{background:var(--gradient-1);border-radius:var(--radius-md);width:40px;height:40px;box-shadow:var(--shadow-glow);justify-content:center;align-items:center;font-size:20px;display:flex}.sidebar-logo h1{letter-spacing:-.3px;font-size:16px;font-weight:700}.sidebar-logo span{color:var(--text-muted);font-size:11px;font-weight:400}.sidebar-nav{flex-direction:column;flex:1;gap:4px;display:flex}.nav-link{border-radius:var(--radius-sm);color:var(--text-secondary);transition:all var(--transition);text-align:left;background:0 0;align-items:center;gap:12px;width:100%;padding:10px 12px;font-size:14px;font-weight:500;display:flex}.nav-link:hover{color:var(--text-primary);background:#ffffff0a}.nav-link.active{background:var(--accent-glow);color:var(--accent-light);border:1px solid var(--border-active)}.nav-link .nav-icon{text-align:center;width:24px;font-size:18px}.main-content{flex-direction:column;flex:1;height:100vh;min-height:100vh;margin-left:260px;display:flex;overflow:hidden}.engagement-badge{background:var(--bg-card);border-radius:var(--radius-md);border:1px solid var(--border);margin-top:auto;padding:16px}.engagement-badge h3{text-transform:uppercase;letter-spacing:1px;color:var(--text-muted);margin-bottom:10px;font-size:11px}.engagement-bar{background:#ffffff0f;border-radius:3px;height:6px;margin-bottom:8px;overflow:hidden}.engagement-bar-fill{border-radius:3px;height:100%;transition:width .5s}.engagement-label{font-size:13px;font-weight:600}.engagement-label.high{color:var(--success)}.engagement-label.medium{color:var(--warning)}.engagement-label.low{color:var(--danger)}.page-header{border-bottom:1px solid var(--border);background:var(--bg-secondary);padding:24px 32px}.page-header h2{letter-spacing:-.5px;font-size:22px;font-weight:700}.page-header p{color:var(--text-muted);margin-top:4px;font-size:13px}.chat-page,.chat-container{flex-direction:column;flex:1;min-height:0;display:flex;overflow:hidden}.chat-messages{flex-direction:column;flex:1;gap:14px;min-height:0;padding:20px 32px;display:flex;overflow:hidden auto}.message{gap:12px;max-width:85%;animation:.3s messageIn;display:flex}@keyframes messageIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.message.human{flex-direction:row-reverse;align-self:flex-end}.message.ai{align-self:flex-start}.message-avatar{border-radius:var(--radius-sm);flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;font-size:16px;display:flex}.message.human .message-avatar{background:var(--gradient-1)}.message.ai .message-avatar{background:var(--gradient-3)}.message-content{border-radius:var(--radius-lg);word-wrap:break-word;padding:12px 16px;font-size:13px;line-height:1.5}.message-content p{margin:0;padding:0}.message-content p:not(:last-child){margin-bottom:8px}.message-content h1,.message-content h2,.message-content h3,.message-content h4{margin-top:12px;margin-bottom:8px}.message-content ul,.message-content ol{margin:8px 0 8px 20px;padding:0}.message-content li{margin:4px 0}.message-content code{background:#0003;border-radius:3px;padding:2px 6px;font-family:Courier New,monospace;font-size:12px}.message-content pre{border-radius:var(--radius-md);background:#0000004d;margin:8px 0;padding:12px;overflow-x:auto}.message-content pre code{background:0 0;border-radius:0;padding:0;font-size:11px}.message-content blockquote{border-left:3px solid var(--accent);color:var(--text-secondary);margin:8px 0;padding-left:12px;font-style:italic}.markdown-code-block{border-radius:var(--radius-md);background:#0000004d;margin:8px 0;padding:12px;font-family:Courier New,monospace;display:block;overflow-x:auto}.markdown-inline-code{background:#0003;border-radius:3px;padding:2px 6px;font-family:Courier 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.score{background:var(--accent-glow);color:var(--accent-light);border-radius:10px;padding:1px 6px;font-size:10px}.tools-used{border-radius:var(--radius-sm);background:#10b98114;border:1px solid #10b98126;margin-top:8px;padding:8px 10px}.tools-used h4{text-transform:uppercase;letter-spacing:.3px;color:var(--success);margin-bottom:4px;font-size:10px}.tool-item{color:var(--text-secondary);padding:2px 0;font-size:11px}.tool-item strong{color:var(--text-primary)}.chat-input-area{border-top:1px solid var(--border);background:var(--bg-secondary);flex-shrink:0;padding:16px 32px 24px}.chat-input-wrapper{align-items:flex-end;gap:12px;display:flex}.chat-input{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text-primary);resize:none;min-height:48px;max-height:120px;transition:border-color var(--transition);flex:1;padding:14px 18px;font-size:14px}.chat-input:focus{border-color:var(--accent)}.chat-input::placeholder{color:var(--text-muted)}.chat-controls{align-items:center;gap:8px;display:flex}.mode-toggle{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text-secondary);white-space:nowrap;transition:all var(--transition);align-items:center;gap:6px;padding:10px 14px;font-size:12px;display:flex}.mode-toggle.active{border-color:var(--accent);color:var(--accent-light);background:var(--accent-glow)}.send-btn{background:var(--gradient-1);border-radius:var(--radius-md);color:#fff;width:48px;height:48px;transition:all var(--transition);flex-shrink:0;justify-content:center;align-items:center;font-size:18px;display:flex}.send-btn:hover{box-shadow:var(--shadow-glow);transform:scale(1.05)}.send-btn:disabled{opacity:.4;cursor:not-allowed;transform:none}.upload-page{padding:32px}.upload-zone{border:2px dashed var(--border);border-radius:var(--radius-lg);text-align:center;transition:all var(--transition);cursor:pointer;background:var(--bg-card);margin-bottom:32px;padding:48px}.upload-zone:hover,.upload-zone.dragover{border-color:var(--accent);background:var(--accent-glow)}.upload-zone .upload-icon{margin-bottom:16px;font-size:48px}.upload-zone h3{margin-bottom:8px;font-size:18px;font-weight:600}.upload-zone p{color:var(--text-muted);font-size:13px}.upload-progress{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);margin-bottom:16px;padding:16px 20px;animation:.3s messageIn}.progress-bar{background:#ffffff0f;border-radius:2px;height:4px;margin-top:10px;overflow:hidden}.progress-bar-fill{background:var(--gradient-1);border-radius:2px;height:100%;transition:width .3s}.doc-list{flex-direction:column;gap:12px;display:flex}.doc-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);transition:all 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(max-width:768px){.sidebar{transform:translate(-100%)}.sidebar.open{transform:translate(0)}.main-content{margin-left:0}.chat-messages{padding:16px}.chat-input-area{padding:12px 16px 16px}.message{max-width:95%}.settings-page{grid-template-columns:1fr;padding:24px}}