:root{--bg: #16181d;--bg2: #1d2026;--bg3: #24272f;--border: #2e323c;--fg: #e6e8ec;--muted: #8b909c;--accent: #6aa0ff;--accent2: #7ee0a0;--danger: #ff6b6b}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif;background:var(--bg);color:var(--fg);font-size:14px}button{background:var(--bg3);color:var(--fg);border:1px solid var(--border);border-radius:6px;padding:5px 10px;cursor:pointer;font-size:13px}button:hover{border-color:var(--accent)}button.primary{background:var(--accent);color:#0b1220;border-color:var(--accent);font-weight:600}button.danger:hover{border-color:var(--danger);color:var(--danger)}input,textarea,select{background:var(--bg);color:var(--fg);border:1px solid var(--border);border-radius:6px;padding:6px 8px;font-size:13px;font-family:inherit}input:focus,textarea:focus{outline:none;border-color:var(--accent)}a{color:var(--accent);text-decoration:none}.auth-screen{height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg);padding:16px}.auth-card{width:min(380px,94vw);background:var(--bg2);border:1px solid var(--border);border-radius:12px;padding:28px}.auth-card .field{margin-bottom:14px}.auth-card button.primary{width:100%;padding:10px;margin-top:6px}.auth-card .pill.err{display:block;margin-bottom:12px}.auth-brand{margin:0 0 10px;font-size:28px;letter-spacing:1px}.qr-wrap{display:flex;justify-content:center;padding:12px;background:#fff;border-radius:10px;margin:12px 0}.qr-wrap img{display:block}.secret{display:block;background:var(--bg3);padding:8px 10px;border-radius:6px;letter-spacing:2px;word-break:break-all;-webkit-user-select:all;user-select:all}.app{display:flex;flex-direction:column;height:100vh}.topbar{display:flex;align-items:center;gap:16px;padding:0 16px;height:48px;border-bottom:1px solid var(--border);background:var(--bg2)}.topbar .brand{font-weight:700;letter-spacing:.5px}.topbar nav{display:flex;gap:4px}.topbar nav a{padding:6px 12px;border-radius:6px;color:var(--muted)}.topbar nav a.active{background:var(--bg3);color:var(--fg)}.workspace{display:grid;grid-template-columns:280px 1fr 360px;flex:1;min-height:0}.col{display:flex;flex-direction:column;min-height:0;min-width:0;border-right:1px solid var(--border)}.col:last-of-type{border-right:none}.col-center>.pane,.col-center>.graph-wrap{flex:1;min-height:0}.center-tabs{display:flex;gap:6px;padding:8px 10px;border-bottom:1px solid var(--border);background:var(--bg2);flex:0 0 auto}.center-tabs button{padding:4px 14px}.pane{display:flex;flex-direction:column;min-height:0;flex:1}.mobile-tabs{display:none}@media(max-width:860px){.workspace{display:flex;flex-direction:column}.col{display:none;flex:1;border-right:none}.workspace[data-tab=sources] .col-sources,.workspace[data-tab=center] .col-center,.workspace[data-tab=chat] .col-chat{display:flex}.center-tabs{display:none}.mobile-tabs{display:flex;flex:0 0 auto;border-top:1px solid var(--border);background:var(--bg2)}.mobile-tabs button{flex:1;border:none;border-radius:0;padding:10px 4px;font-size:12px;color:var(--muted);background:var(--bg2)}.mobile-tabs button.on{color:var(--accent);background:var(--bg3)}.workspace{grid-template-columns:none}}.pane-head{padding:10px 12px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;gap:8px}.pane-head h2{font-size:12px;text-transform:uppercase;letter-spacing:1px;color:var(--muted);margin:0}.pane-body{overflow:auto;flex:1;padding:8px}.nb-group{margin-bottom:6px}.nb-title{color:var(--muted);font-size:11px;text-transform:uppercase;padding:6px 8px 2px}.note-item{padding:7px 8px;border-radius:6px;cursor:pointer}.note-item:hover{background:var(--bg2)}.note-item.active{background:var(--bg3)}.note-item .t{font-weight:500}.note-item .m{color:var(--muted);font-size:11px}.search-box{padding:8px;border-bottom:1px solid var(--border)}.search-box input{width:100%}.hit{padding:7px 8px;border-radius:6px;cursor:pointer}.hit:hover{background:var(--bg2)}.hit .t{font-weight:500}.hit .s{color:var(--muted);font-size:12px}.editor{display:flex;flex-direction:column;height:100%}.editor textarea{flex:1;resize:none;border:none;border-radius:0;padding:16px;line-height:1.6}.editor .titlerow{display:flex;gap:8px;padding:10px 12px;border-bottom:1px solid var(--border)}.editor .titlerow input{flex:1;font-size:16px;font-weight:600}.tags{display:flex;flex-wrap:wrap;gap:6px;padding:8px 12px;border-bottom:1px solid var(--border);align-items:center}.tag{background:var(--bg3);border-radius:12px;padding:2px 10px;font-size:12px;color:var(--accent2)}.markdown{padding:16px;overflow:auto;line-height:1.6}.markdown h1,.markdown h2,.markdown h3{border-bottom:1px solid var(--border);padding-bottom:4px}.markdown code{background:var(--bg3);padding:1px 5px;border-radius:4px}.backlinks{border-top:1px solid var(--border);padding:10px 12px}.backlinks .lbl{color:var(--muted);font-size:11px;text-transform:uppercase}.empty{color:var(--muted);padding:40px;text-align:center}.chat{display:flex;flex-direction:column;height:100%}.chat-log{flex:1;overflow:auto;padding:12px;display:flex;flex-direction:column;gap:12px}.msg{padding:10px 12px;border-radius:8px;max-width:95%;white-space:pre-wrap}.msg.user{background:var(--bg3);align-self:flex-end}.msg.assistant{background:var(--bg2);align-self:flex-start}.citations{margin-top:8px;display:flex;flex-wrap:wrap;gap:6px}.cite{font-size:11px;background:var(--bg);border:1px solid var(--border);border-radius:10px;padding:2px 8px;cursor:pointer}.chat-input{display:flex;gap:8px;padding:10px;border-top:1px solid var(--border)}.chat-input textarea{flex:1;resize:none;height:56px}.discover{height:100%;overflow:auto;display:flex;flex-direction:column}.discover-bar{display:flex;gap:8px;align-items:center;padding:12px 16px;border-bottom:1px solid var(--border);background:var(--bg2);position:sticky;top:0;z-index:5}.discover-bar .topic-input{flex:1}.discover-msg{padding:8px 16px;font-size:13px;color:var(--accent2);background:var(--bg2);border-bottom:1px solid var(--border)}.mosaic{display:grid;grid-template-columns:repeat(5,1fr);grid-auto-rows:calc((100vw - 72px)*.15);grid-auto-flow:dense;gap:10px;padding:16px}@media(max-width:860px){.mosaic{grid-template-columns:repeat(3,1fr);grid-auto-rows:calc((100vw - 40px)/4);gap:8px;padding:12px}}.tile{position:relative;border-radius:8px;overflow:hidden;color:#fff;box-shadow:0 1px 3px #0006;transition:transform .08s}.tile:hover{transform:translateY(-2px)}.tile.xl{grid-column:span 2;grid-row:span 2}.tile.wide{grid-column:span 2;grid-row:span 1}.tile.tall{grid-column:span 1;grid-row:span 2}.tile.sm{grid-column:span 1;grid-row:span 1}.tile-photo{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;object-fit:cover}.tile-shade{position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(to top,#000000e0 10%,#00000059,#0000001a)}.tile.has-img .tile-title,.tile.has-img .tile-sum{text-shadow:0 1px 4px rgba(0,0,0,.6)}.tile-body{position:relative;z-index:1;display:flex;flex-direction:column;justify-content:flex-end;height:100%;width:100%;padding:12px;color:#fff;text-decoration:none;text-align:left;background:none;border:0;cursor:pointer;font:inherit}.tile:not(.has-img) .tile-body{justify-content:flex-start}.tile-src{font-size:11px;text-transform:uppercase;letter-spacing:.5px;opacity:.85;margin-bottom:6px}.tile-title{font-weight:700;line-height:1.25}.tile.sm .tile-title{font-size:13px}.tile.tall .tile-title,.tile.wide .tile-title{font-size:16px}.tile.xl .tile-title{font-size:22px}.tile-sum{margin-top:8px;font-size:13px;opacity:.92;overflow:hidden;flex:1}.tile-actions{position:absolute;z-index:2;top:8px;right:8px;display:flex;gap:6px;opacity:0;transition:opacity .1s}.tile:hover .tile-actions{opacity:1}.tile-actions button{background:#00000073;color:#fff;border:none;font-size:12px;padding:3px 8px;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.tile-actions button:hover{background:#000000b3}.graph-wrap{height:100%;width:100%;overflow:hidden;background:var(--bg)}.graph-svg{width:100%;height:100%;touch-action:none}.graph-edge{stroke:var(--border);stroke-width:1}.graph-edge.hot{stroke:var(--accent);stroke-width:2}.graph-node{cursor:pointer}.graph-node circle{fill:var(--accent);stroke:var(--bg2);stroke-width:2}.graph-node circle.active{fill:var(--accent2)}.graph-node:hover circle{fill:var(--accent2)}.graph-node text{fill:var(--fg);font-size:11px;pointer-events:none}.reader-modal{background:var(--bg2);border:1px solid var(--border);border-radius:10px;width:96vw;height:92vh;display:flex;flex-direction:column;overflow:hidden}.reader-head{display:flex;align-items:center;gap:12px;padding:10px 14px;border-bottom:1px solid var(--border)}.reader-title{font-weight:600;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.reader-frame{flex:1;width:100%;border:0;background:#fff}.reader-hint{padding:6px 14px;font-size:12px;border-top:1px solid var(--border)}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;display:flex;align-items:center;justify-content:center;z-index:50}.modal{background:var(--bg2);border:1px solid var(--border);border-radius:12px;width:min(900px,92vw);max-height:88vh;display:flex;flex-direction:column}.modal-head{display:flex;justify-content:space-between;align-items:flex-start;padding:18px 20px;border-bottom:1px solid var(--border)}.topic-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:12px;padding:18px 20px;overflow:auto}.topic-card{position:relative;text-align:left;background:var(--bg3);border:2px solid var(--border);border-radius:10px;padding:14px;cursor:pointer;display:flex;flex-direction:column;gap:4px;color:var(--fg)}.topic-card:hover{border-color:var(--accent)}.topic-card.on{border-color:var(--accent2);background:#1a2a22}.topic-card .emoji{font-size:26px}.topic-card .tl{font-weight:700}.topic-card .ds{font-size:12px;color:var(--muted)}.topic-card .cat{font-size:10px;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);margin-top:4px}.topic-card .check{position:absolute;top:10px;right:12px;color:var(--accent2);font-weight:700}.modal-foot{display:flex;gap:10px;align-items:center;padding:14px 20px;border-top:1px solid var(--border)}.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:12px;padding:16px}.card{background:var(--bg2);border:1px solid var(--border);border-radius:10px;padding:14px;display:flex;flex-direction:column;gap:8px}.card .ttl{font-weight:600}.card .sum{color:var(--fg);font-size:13px}.relbar{height:6px;background:var(--bg3);border-radius:3px;overflow:hidden}.relbar>div{height:100%;background:var(--accent2)}.card .meta{color:var(--muted);font-size:11px;display:flex;justify-content:space-between}.card .actions{display:flex;gap:6px}.settings{max-width:760px;margin:0 auto;padding:24px;display:flex;flex-direction:column;gap:24px}.section{background:var(--bg2);border:1px solid var(--border);border-radius:10px;padding:16px}.section h3{margin:0 0 12px}.field{display:flex;flex-direction:column;gap:4px;margin-bottom:10px}.field label{color:var(--muted);font-size:12px}.row{display:flex;gap:8px;align-items:center}.list-row{display:flex;gap:8px;align-items:center;padding:8px 0;border-bottom:1px solid var(--border)}.spacer{flex:1}.pill{font-size:11px;padding:2px 8px;border-radius:10px;background:var(--bg3)}.pill.ok{color:var(--accent2)}.pill.err{color:var(--danger)}.muted{color:var(--muted)}