:root{--bg-primary: #0f172a;--bg-card: #1e293b;--bg-card-alt: #334155;--bg-glass: rgba(15, 23, 42, .8);--text-primary: #e2e8f0;--text-secondary: #94a3b8;--text-muted: #64748b;--border-subtle: #334155;--accent-purple: #8b5cf6}body.light{--bg-primary: #f8fafc;--bg-card: #ffffff;--bg-card-alt: #f1f5f9;--bg-glass: rgba(255, 255, 255, .9);--text-primary: #1e293b;--text-secondary: #475569;--text-muted: #94a3b8;--border-subtle: #e2e8f0}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-subtle);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.glass{background:var(--bg-glass);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}.toggle-sw{width:36px!important;height:20px!important;border-radius:10px!important;position:relative!important;cursor:pointer!important;background:#334155!important;border:none!important;padding:0!important;display:inline-flex!important;align-items:center!important;transition:background .3s}body.light .toggle-sw{background:#cbd5e1!important}.toggle-sw.on{background:#8b5cf6!important}.toggle-sw:after{content:"";position:absolute;width:16px;height:16px;background:#fff;border-radius:50%;top:2px;left:2px;transition:.2s cubic-bezier(.4,0,.2,1);box-shadow:0 1px 2px #0003}.toggle-sw.on:after{left:18px}.tooltip{position:fixed;padding:16px 20px;border-radius:16px;font-size:13px;z-index:2000;max-width:580px;max-height:700px;overflow-y:auto;box-shadow:0 12px 40px #0006;background:#0f172afa;color:#fff;border:1px solid rgba(139,92,246,.4);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);pointer-events:auto;opacity:0;visibility:hidden;transition:opacity .15s,visibility .15s}body.light .tooltip{background:#fffffffa;color:#1e293b;border:1px solid #e2e8f0;box-shadow:0 12px 40px #00000026}#pagePreviewTooltip.visible{opacity:1;visibility:visible}#pagePreviewTooltip.pinned{box-shadow:0 12px 50px #8b5cf680,0 0 20px #8b5cf64d;border-color:#8b5cf699}.tooltip-title{font-size:16px;font-weight:700;margin-bottom:4px;line-height:1.4}.tooltip-slug{font-family:monospace;font-size:11px;color:#94a3b8;margin-bottom:12px;padding-bottom:12px;border-bottom:1px solid rgba(255,255,255,.1)}body.light .tooltip-slug{color:#64748b;border-bottom-color:#e2e8f0}.tooltip-tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:16px}.tooltip-tag{padding:4px 8px;border-radius:6px;font-size:11px;font-weight:500;color:#fff;display:flex;align-items:center;gap:4px;box-shadow:0 1px 2px #0000001a}.tooltip-meta{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}.tooltip-meta-row{display:flex;align-items:flex-start;gap:10px;font-size:12px}.tooltip-meta-icon{flex-shrink:0;width:20px;text-align:center}.tooltip-meta-values{line-height:1.5}.tooltip-highlight{background:#8b5cf61a;border-radius:8px;padding:12px;border:1px solid rgba(139,92,246,.2)}.tooltip-highlight-label{font-weight:600;color:#a78bfa;margin-bottom:8px;font-size:11px;text-transform:uppercase;letter-spacing:.5px}body.light .tooltip-highlight-label{color:#7c3aed}.tooltip-meta-item{margin-bottom:4px;padding-left:12px;position:relative}#tooltipBackdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;z-index:1999;opacity:0;visibility:hidden;transition:opacity .3s;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}#tooltipBackdrop.visible{opacity:1;visibility:visible}body.tooltip-open{overflow:hidden;position:fixed;width:100%}@media (max-width: 768px){#pagePreviewTooltip{position:fixed!important;top:0!important;right:0!important;bottom:0!important;left:0!important;width:100vw!important;height:100vh!important;max-width:100vw!important;max-height:100vh!important;border-radius:0!important;padding:0!important;z-index:2000!important;transform:translateY(100%);transition:transform .3s cubic-bezier(.4,0,.2,1);background:var(--bg-primary)!important;border:none!important}#pagePreviewTooltip.visible{transform:translateY(0)}.tooltip-header-mobile{position:sticky;top:0;z-index:10;padding:12px 16px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border-subtle);background:var(--bg-primary)}.tooltip-close-btn{width:32px;height:32px;border-radius:8px;background:var(--bg-card-alt);border:none;color:var(--text-primary);font-size:16px;display:flex;align-items:center;justify-content:center;cursor:pointer}.tooltip-content-mobile{padding:20px;overflow-y:auto;height:calc(100vh - 57px);-webkit-overflow-scrolling:touch;color:var(--text-primary)}}.hidden-tags-badge,.hidden-meta-badge{position:relative;cursor:pointer;transition:all .2s;display:inline-flex}.hidden-tags-badge:hover,.hidden-meta-badge:hover{transform:scale(1.1);z-index:10}.hidden-tags-tooltip,.hidden-meta-tooltip{position:absolute;bottom:100%;left:50%;transform:translate(-50%);background:#0f172afa;border:1px solid rgba(139,92,246,.4);border-radius:12px;padding:8px;min-width:200px;max-width:300px;max-height:300px;overflow-y:auto;opacity:0;visibility:hidden;transition:all .2s ease;z-index:100;box-shadow:0 8px 32px #0006;pointer-events:none}body.light .hidden-tags-tooltip,body.light .hidden-meta-tooltip{background:#fff;border:1px solid #e2e8f0;box-shadow:0 8px 32px #00000026}.hidden-tags-badge:hover .hidden-tags-tooltip,.hidden-meta-badge:hover .hidden-meta-tooltip{opacity:1;visibility:visible;pointer-events:auto;bottom:calc(100% + 8px)}.hidden-tag-item,.hidden-meta-item{display:flex;align-items:center;gap:6px;padding:8px;border-radius:8px;cursor:pointer;transition:all .15s;font-size:11px;color:#fff}body.light .hidden-tag-item,body.light .hidden-meta-item{color:#1e293b}.hidden-tag-item:hover,.hidden-meta-item:hover{background:#8b5cf633;transform:translate(2px)}.filter-chip{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:8px;font-size:12px;background:var(--bg-card-alt);border:1px solid var(--border-subtle);color:var(--text-secondary);cursor:pointer;transition:all .2s;-webkit-user-select:none;user-select:none}.filter-chip:hover:not(.disabled){border-color:var(--accent-purple);color:var(--text-primary)}.filter-chip.active{background:var(--accent-purple);border-color:var(--accent-purple);color:#fff;box-shadow:0 2px 8px #8b5cf64d}.filter-chip.disabled{opacity:.4;cursor:not-allowed;background:transparent}@media (max-width: 768px){.control-panel{position:fixed;left:0;bottom:0;right:0;top:auto!important;width:100%!important;max-height:80vh;border-radius:24px 24px 0 0!important;overflow-y:hidden;z-index:60;transform:translateY(100%);transition:transform .3s cubic-bezier(.4,0,.2,1)}.control-panel.visible{transform:translateY(0)}.mobile-handle{display:flex;justify-content:center;padding:12px;cursor:pointer;background:var(--bg-card);border-bottom:1px solid var(--border-subtle)}.mobile-handle:before{content:"";width:40px;height:4px;background:var(--text-muted);border-radius:2px;opacity:.5}#graphTooltip{display:none!important}}@media (min-width: 769px){.mobile-handle{display:none}}.graph-node{cursor:pointer;transition:filter .2s}.graph-node:hover{filter:brightness(1.2)}.node-label{font-family:Inter,sans-serif;fill:var(--text-secondary);pointer-events:none;text-shadow:0 1px 2px rgba(0,0,0,.8)}body.light .node-label{fill:var(--text-primary);text-shadow:0 1px 2px rgba(255,255,255,.8)}.chat-widget-btn{position:fixed;bottom:24px;right:24px;width:56px;height:56px;border-radius:50%;background:linear-gradient(135deg,#8b5cf6,#a855f7);color:#fff;box-shadow:0 4px 20px #8b5cf666,0 0 #8b5cf666;display:flex;align-items:center;justify-content:center;font-size:22px;cursor:pointer;z-index:900;transition:all .3s cubic-bezier(.4,0,.2,1);border:none;animation:pulse-ring 2s infinite}@keyframes pulse-ring{0%{box-shadow:0 4px 20px #8b5cf666,0 0 #8b5cf666}70%{box-shadow:0 4px 20px #8b5cf666,0 0 0 10px #8b5cf600}to{box-shadow:0 4px 20px #8b5cf666,0 0 #8b5cf600}}.chat-widget-btn:hover{transform:scale(1.08);box-shadow:0 8px 32px #8b5cf680}.chat-window{position:fixed;top:0;right:0;bottom:0;width:420px;height:100vh;max-height:100vh;background:var(--bg-primary);border-left:1px solid var(--border-subtle);display:flex;flex-direction:column;z-index:1000;transition:transform .4s cubic-bezier(.16,1,.3,1),opacity .3s ease;opacity:0;transform:translate(100%);pointer-events:none;overflow:hidden;min-width:320px;max-width:600px}.chat-window.visible{opacity:1;transform:translate(0);pointer-events:auto}.chat-resize-handle{position:absolute;left:0;top:0;bottom:0;width:5px;cursor:ew-resize;z-index:1001;background:transparent;transition:background .2s}.chat-resize-handle:hover,.chat-resize-handle.resizing{background:linear-gradient(180deg,#8b5cf6,#a855f7)}.chat-header{background:var(--bg-card);padding:16px 20px;border-bottom:1px solid var(--border-subtle);display:flex;align-items:center;justify-content:space-between;gap:12px;flex-shrink:0}.chat-title{display:flex;align-items:center;gap:12px;font-weight:600;font-size:15px;color:var(--text-primary)}.chat-title-icon{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,#8b5cf6,#a855f7);display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px;box-shadow:0 2px 8px #8b5cf64d}.chat-header-actions{display:flex;align-items:center;gap:8px}.chat-header-btn{width:32px;height:32px;border-radius:8px;background:transparent;border:none;color:var(--text-muted);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s}.chat-header-btn:hover{background:var(--bg-card-alt);color:var(--text-primary)}.chat-messages{flex:1;overflow-y:auto;overflow-x:hidden;padding:0;display:flex;flex-direction:column;scroll-behavior:smooth;background:var(--bg-primary)}.chat-message{padding:20px 24px;font-size:14px;line-height:1.7;position:relative;word-wrap:break-word;animation:messageSlide .3s ease-out;border-bottom:1px solid var(--border-subtle);max-width:100%;width:100%;box-sizing:border-box}@keyframes messageSlide{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.chat-message.user{background:var(--bg-card-alt)}.chat-message.user:before{content:"";position:absolute;top:20px;right:24px;width:28px;height:28px;border-radius:50%;background:linear-gradient(135deg,#8b5cf6,#a855f7)}.chat-message.user .message-content{padding-right:44px}.chat-message.ai{background:var(--bg-primary)}.chat-message.ai:before{content:"";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;top:20px;left:24px;width:28px;height:28px;border-radius:8px;background:linear-gradient(135deg,#10b981,#059669);display:flex;align-items:center;justify-content:center;color:#fff;font-size:12px;box-shadow:0 2px 6px #10b9814d}.chat-message.ai .message-content{padding-left:44px}.chat-message.system{background:transparent;border-bottom:none;padding:12px 24px;text-align:center}.chat-message.system .message-content{font-size:12px;color:var(--text-muted);font-style:italic}.typing-indicator{display:flex;align-items:center;gap:8px;padding:20px 24px 20px 68px;background:var(--bg-primary);position:relative}.typing-indicator:before{content:"";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;top:20px;left:24px;width:28px;height:28px;border-radius:8px;background:linear-gradient(135deg,#10b981,#059669);display:flex;align-items:center;justify-content:center;color:#fff;font-size:12px}.typing-dots{display:flex;gap:4px}.typing-dot{width:8px;height:8px;background:var(--text-muted);border-radius:50%;animation:typingBounce 1.4s infinite ease-in-out}.typing-dot:nth-child(1){animation-delay:-.32s}.typing-dot:nth-child(2){animation-delay:-.16s}@keyframes typingBounce{0%,80%,to{transform:scale(.6);opacity:.4}40%{transform:scale(1);opacity:1}}.typing-text{font-size:13px;color:var(--text-muted);margin-left:8px}.chat-input-area{padding:16px 20px 24px;background:var(--bg-card);border-top:1px solid var(--border-subtle);flex-shrink:0}.chat-input-wrapper{display:flex;align-items:flex-end;gap:12px;background:var(--bg-card-alt);padding:12px 16px;border-radius:16px;border:1px solid var(--border-subtle);transition:all .2s;box-shadow:0 2px 8px #0000001a}.chat-input-wrapper:focus-within{border-color:#8b5cf6;box-shadow:0 0 0 3px #8b5cf61a,0 2px 8px #0000001a}.chat-input{flex:1;background:transparent;border:none;color:var(--text-primary);font-size:14px;padding:4px 0;resize:none;max-height:120px;min-height:24px;outline:none;line-height:1.5;font-family:inherit}.chat-input::placeholder{color:var(--text-muted)}.chat-send-btn{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,#8b5cf6,#a855f7);color:#fff;border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s;flex-shrink:0;box-shadow:0 2px 8px #8b5cf64d}.chat-send-btn:hover:not(:disabled){transform:scale(1.05);box-shadow:0 4px 12px #8b5cf666}.chat-send-btn:disabled{opacity:.4;cursor:not-allowed;transform:none}.chat-sources{margin-top:16px;padding-top:12px;border-top:1px solid var(--border-subtle)}.chat-sources-title{font-size:11px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;margin-bottom:8px}.chat-sources-list{display:flex;flex-wrap:wrap;gap:6px}.source-chip{font-size:12px;padding:6px 12px;background:#8b5cf614;color:#a78bfa;border:1px solid rgba(139,92,246,.15);border-radius:8px;cursor:pointer;transition:all .2s;text-decoration:none;display:inline-flex;align-items:center;gap:6px;max-width:200px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.source-chip:hover{background:#8b5cf626;border-color:#8b5cf64d;transform:translateY(-1px)}.source-chip i{font-size:10px;opacity:.7}.chat-message .message-content{color:var(--text-primary)}.chat-message .message-content p{margin-bottom:12px}.chat-message .message-content p:last-child{margin-bottom:0}.chat-message .message-content strong{font-weight:600;color:#a78bfa}.chat-message .message-content ul,.chat-message .message-content ol{margin:12px 0;padding-left:24px}.chat-message .message-content li{margin-bottom:6px}.chat-message .message-content code{background:#8b5cf61a;padding:2px 6px;border-radius:4px;font-size:13px;font-family:Menlo,Monaco,Consolas,monospace}.chat-message .message-content pre{background:var(--bg-card-alt);border:1px solid var(--border-subtle);border-radius:8px;padding:12px;overflow-x:auto;margin:12px 0}.chat-message .message-content pre code{background:transparent;padding:0}.chat-message .message-content table{width:100%;border-collapse:collapse;margin:12px 0;font-size:13px}.chat-message .message-content th,.chat-message .message-content td{border:1px solid var(--border-subtle);padding:8px 12px;text-align:left}.chat-message .message-content th{background:var(--bg-card-alt);font-weight:600}.chat-message .message-content blockquote{border-left:3px solid #8b5cf6;padding-left:12px;margin:12px 0;color:var(--text-secondary)}.chat-message .message-content a{color:#8b5cf6;text-decoration:none}.chat-message .message-content a:hover{text-decoration:underline}.chat-message .message-content input[type=checkbox]{margin-right:8px;accent-color:#8b5cf6}.chat-message.welcome{background:linear-gradient(135deg,#8b5cf60d,#a855f705);border-bottom:none;text-align:center;padding:32px 24px}.chat-message.welcome:before{display:none}.chat-message.welcome .message-content{padding:0}.welcome-icon{width:56px;height:56px;margin:0 auto 16px;border-radius:16px;background:linear-gradient(135deg,#8b5cf6,#a855f7);display:flex;align-items:center;justify-content:center;font-size:24px;color:#fff;box-shadow:0 4px 16px #8b5cf64d}.welcome-title{font-size:18px;font-weight:600;margin-bottom:8px}.welcome-subtitle{font-size:14px;color:var(--text-muted);line-height:1.6}.chat-messages::-webkit-scrollbar{width:6px}.chat-messages::-webkit-scrollbar-track{background:transparent}.chat-messages::-webkit-scrollbar-thumb{background:var(--border-subtle);border-radius:3px}.chat-messages::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}@media (max-width: 480px){.chat-window{width:100%;max-width:100%;border-radius:0;border-left:none}.chat-message{padding:16px}.chat-message.ai:before,.chat-message.user:before,.typing-indicator:before{display:none}.chat-message.ai .message-content,.chat-message.user .message-content{padding-left:0;padding-right:0}.typing-indicator{padding-left:16px}.chat-input-area{padding:12px 16px 20px}}@media (prefers-color-scheme: dark){.chat-input-wrapper{box-shadow:0 2px 8px #0000004d}}