@import "https://fonts.googleapis.com/css2?family=Source+Serif+4:opsz,wght@8..60,400;8..60,500;8..60,600;8..60,700&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap";:root{--bg:#fafaf7;--paper:#fff;--paper-2:#f5f4ee;--ink:#171614;--ink-2:#3a3833;--muted:#6e6a62;--muted-2:#9a968c;--line:#e4e1d7;--line-2:#d2cec0;--accent:oklch(55% .13 250);--accent-soft:oklch(95% .02 250);--accent-line:oklch(85% .06 250);--green:oklch(60% .12 150);--amber:oklch(70% .13 75);--red:oklch(58% .18 25);--serif:"Source Serif 4", "Songti SC", Georgia, serif;--sans:"Inter", "PingFang SC", system-ui, -apple-system, sans-serif;--mono:"JetBrains Mono", ui-monospace, monospace;--r-sm:3px;--r:4px;--r-lg:6px}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased;font-feature-settings:"cv11", "ss01";font-size:13px;line-height:1.5}h1,h2,h3,h4,.serif{font-family:var(--serif);letter-spacing:-.01em;font-weight:500}.mono{font-family:var(--mono)}button{font:inherit;color:inherit;cursor:pointer;background:0 0;border:none;padding:0}input,textarea,select{font:inherit;color:inherit}::selection{background:var(--accent-soft)}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--line-2);border:2px solid var(--bg);border-radius:10px}::-webkit-scrollbar-thumb:hover{background:var(--muted-2)}.app{grid-template-columns:232px 1fr;height:100vh;display:grid;overflow:hidden}.sidebar{background:var(--paper-2);border-right:1px solid var(--line);flex-direction:column;min-height:0;display:flex}.sidebar a,.sidebar a:link,.sidebar a:visited,.sidebar a:hover,.sidebar a:focus,.sidebar a:active{text-decoration:none}.sidebar-brand{border-bottom:1px solid var(--line);align-items:baseline;gap:8px;padding:18px 20px 16px;display:flex}.sidebar-brand .mark{font-family:var(--serif);letter-spacing:-.02em;font-size:19px;font-weight:600}.sidebar-brand .ver{font-family:var(--mono);color:var(--muted-2);letter-spacing:.05em;font-size:10px}.sidebar-tabs{border-bottom:1px solid var(--line);grid-template-columns:1fr 1fr;gap:4px;padding:10px;display:grid}.sidebar-tab{text-align:center;border-radius:var(--r);color:var(--muted);letter-spacing:.04em;text-transform:uppercase;padding:7px 0;font-size:11.5px;font-weight:500}.sidebar-tab.active{background:var(--ink);color:var(--paper)}.sidebar-section{letter-spacing:.1em;text-transform:uppercase;color:var(--muted-2);padding:14px 12px 4px;font-size:10px;font-weight:500}.sidebar-nav{flex:1;min-height:0;padding:4px 8px 12px;overflow-y:auto}.nav-item{border-radius:var(--r);color:var(--ink-2);text-align:left;white-space:nowrap;align-items:center;gap:10px;width:100%;padding:7px 10px;font-size:13px;display:flex;position:relative}.nav-item>span:not(.badge){text-overflow:ellipsis;flex:1;min-width:0;overflow:hidden}.nav-item:hover{background:#00000008}.nav-item.active{background:var(--paper);color:var(--ink);box-shadow:inset 0 0 0 1px var(--line);font-weight:500}.nav-item .ico{opacity:.7;flex-shrink:0;width:14px;height:14px}.nav-item .badge{font-family:var(--mono);color:var(--muted);background:var(--bg);border-radius:999px;margin-left:auto;padding:1px 6px;font-size:10px}.nav-item.active .badge{background:var(--paper-2)}.sidebar-foot{border-top:1px solid var(--line);cursor:pointer;align-items:center;gap:10px;padding:10px;display:flex}.sidebar-foot:hover{background:#00000005}.avatar{background:var(--ink);width:28px;height:28px;color:var(--paper);font-family:var(--serif);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:13px;font-weight:600;display:flex}.avatar.sm{width:22px;height:22px;font-size:11px}.avatar.lg{width:40px;height:40px;font-size:17px}.main{background:var(--bg);min-height:0;overflow-y:auto}.main-inner{max-width:1280px;margin:0 auto;padding:32px 40px 80px}.page-head{border-bottom:1px solid var(--line);justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:28px;padding-bottom:18px;display:flex}.page-head h1{margin:0 0 4px;font-size:28px;font-weight:500}.page-head .crumb{font-family:var(--mono);letter-spacing:.06em;color:var(--muted-2);text-transform:uppercase;margin-bottom:8px;font-size:10.5px}.page-head .sub{color:var(--muted);max-width:600px;font-size:13.5px}.btn{border-radius:var(--r);border:1px solid var(--line-2);background:var(--paper);color:var(--ink);white-space:nowrap;align-items:center;gap:6px;padding:6px 12px;font-size:12.5px;font-weight:500;transition:all .12s;display:inline-flex}.btn:hover{border-color:var(--ink-2)}.btn.primary{background:var(--ink);color:var(--paper);border-color:var(--ink)}.btn.primary:hover{background:var(--ink-2)}.btn.ghost{color:var(--muted);background:0 0;border-color:#0000}.btn.ghost:hover{color:var(--ink);background:#0000000a}.btn.sm{padding:4px 9px;font-size:11.5px}.btn.danger{color:var(--red);border-color:var(--line-2)}.btn.danger:hover{border-color:var(--red)}.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r)}.card-head{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;padding:12px 16px;display:flex}.card-head h3{font-size:14px;font-family:var(--sans);margin:0;font-weight:600}.card-head .meta{font-family:var(--mono);color:var(--muted-2);font-size:10.5px}.tag{background:var(--paper-2);color:var(--ink-2);border:1px solid var(--line);white-space:nowrap;border-radius:999px;align-items:center;gap:4px;padding:2px 8px;font-size:11px;display:inline-flex}.tag.accent{background:var(--accent-soft);color:var(--accent);border-color:var(--accent-line)}.tag.dot:before{content:"";background:currentColor;border-radius:50%;width:6px;height:6px}.tag.green{color:var(--green)}.tag.amber{color:var(--amber)}.tag.red{color:var(--red)}.tag.muted{color:var(--muted)}table.dt{border-collapse:collapse;width:100%;font-size:12.5px}table.dt th,table.dt td{text-align:left;border-bottom:1px solid var(--line);padding:10px 14px}table.dt th{text-transform:uppercase;letter-spacing:.06em;color:var(--muted);background:var(--paper-2);border-bottom:1px solid var(--line-2);z-index:1;font-size:10.5px;font-weight:500;position:sticky;top:0}table.dt tbody tr:hover{background:var(--paper-2)}table.dt td.num{font-family:var(--mono)}.input,.textarea,.select{background:var(--paper);border:1px solid var(--line-2);border-radius:var(--r);outline:none;width:100%;padding:8px 12px;font-size:13px;transition:border .1s}.input:focus,.textarea:focus,.select:focus{border-color:var(--ink-2)}.textarea{resize:vertical;min-height:80px;line-height:1.6;font-family:var(--sans)}.label{text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin-bottom:6px;font-size:11px;font-weight:500;display:block}.stat-grid{background:var(--line);border:1px solid var(--line);border-radius:var(--r);grid-template-columns:repeat(4,1fr);gap:1px;display:grid;overflow:hidden}.stat{background:var(--paper);padding:16px 18px}.stat .k{text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin-bottom:6px;font-size:10.5px}.stat .v{font-family:var(--serif);letter-spacing:-.02em;font-size:26px;font-weight:500}.stat .v .unit{color:var(--muted);font-size:13px;font-family:var(--sans);margin-left:3px}.stat .delta{font-family:var(--mono);margin-top:4px;font-size:11px}.stat .delta.up{color:var(--green)}.stat .delta.down{color:var(--red)}.paper-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:0;transition:border .12s}.paper-card:hover{border-color:var(--line-2)}.paper-card .pc-head{cursor:pointer;padding:16px 20px 14px}.paper-card .pc-meta{font-family:var(--mono);color:var(--muted);letter-spacing:.03em;text-transform:uppercase;flex-wrap:wrap;align-items:center;gap:8px 12px;margin-bottom:8px;font-size:10.5px;display:flex}.paper-card .pc-title{font-family:var(--serif);color:var(--ink);margin:0 0 6px;font-size:18px;font-weight:500;line-height:1.3}.paper-card .pc-authors{color:var(--muted);margin-bottom:10px;font-size:12.5px;font-style:italic}.paper-card .pc-tldr{color:var(--ink-2);margin-bottom:12px;font-size:13.5px;line-height:1.55}.paper-card .pc-why{color:var(--muted);background:var(--paper-2);border-left:2px solid var(--accent);border-radius:0 var(--r) var(--r) 0;align-items:flex-start;gap:8px;padding:8px 12px;font-size:12px;display:flex}.paper-card .pc-why .label{margin:0 8px 0 0;display:inline}.paper-card .pc-actions{border-top:1px solid var(--line);align-items:center;gap:4px;padding:8px 14px;display:flex}.paper-card .pc-expand{border-top:1px solid var(--line);background:var(--paper-2);padding:18px 20px}.paper-card.l1{border-left:2px solid var(--accent)}.expand-section h5{text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-size:10.5px;font-weight:500;font-family:var(--sans);margin:0 0 8px}.expand-section+.expand-section{margin-top:18px}.expand-section ul{margin:0;padding-left:18px}.expand-section li{margin-bottom:4px;font-size:13px;line-height:1.5}.expand-section li::marker{color:var(--muted-2)}.chat-input{background:var(--paper);border:1px solid var(--line-2);border-radius:var(--r-lg);align-items:flex-end;gap:0;padding:10px 12px;transition:border .12s;display:flex}.chat-input:focus-within{border-color:var(--ink)}.chat-input textarea{resize:none;font-family:var(--sans);background:0 0;border:none;outline:none;flex:1;min-height:20px;max-height:120px;padding:4px 0;font-size:14px;line-height:1.5}.tool-trace{border:1px solid var(--line);border-radius:var(--r);background:var(--paper-2);font-family:var(--mono);color:var(--muted);padding:10px 12px;font-size:11.5px}.tool-trace .step{gap:8px;padding:2px 0;display:flex}.tool-trace .step .ix{color:var(--muted-2);width:18px}.tool-trace .step .fn{color:var(--accent)}.tool-trace .step .ok{color:var(--green);margin-left:auto}.spark{display:block}.health-row{border-bottom:1px solid var(--line);align-items:center;gap:14px;padding:12px 16px;display:flex}.health-row:last-child{border-bottom:none}.health-dot{border-radius:50%;flex-shrink:0;width:8px;height:8px}.health-dot.ok{background:var(--green)}.health-dot.warn{background:var(--amber)}.health-dot.err{background:var(--red);box-shadow:0 0 0 3px oklch(58% .18 25/.15)}.health-dot.pulse{animation:1.6s infinite pulse}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}.modal-backdrop{z-index:100;background:#17161466;justify-content:center;align-items:center;padding:40px;display:flex;position:fixed;inset:0}.modal{background:var(--paper);border-radius:var(--r-lg);border:1px solid var(--line-2);width:100%;max-width:480px;overflow:hidden}.user-menu{background:var(--paper);border:1px solid var(--line-2);border-radius:var(--r);z-index:50;padding:6px;position:absolute;bottom:calc(100% + 4px);left:8px;right:8px;box-shadow:0 12px 32px #1716141f}.user-menu .row{border-radius:var(--r);cursor:pointer;text-align:left;align-items:center;gap:10px;width:100%;padding:7px 8px;display:flex}.user-menu .row:hover,.user-menu .row.active{background:var(--paper-2)}.user-menu .sep{background:var(--line);height:1px;margin:4px 2px}.user-menu .row .meta{color:var(--muted);font-size:11px}.chip-cluster{flex-wrap:wrap;gap:6px;display:flex}.chip{border-radius:var(--r);background:var(--paper);border:1px solid var(--line);align-items:center;gap:6px;padding:4px 10px;font-size:12px;display:inline-flex}.chip .lvl{font-family:var(--mono);color:var(--muted-2);text-transform:uppercase;letter-spacing:.06em;font-size:9.5px}.chip .w{font-family:var(--mono);color:var(--accent);font-size:10.5px}.chip.author{background:var(--paper-2)}.pdf-page{background:var(--paper);border:1px solid var(--line);color:var(--ink);aspect-ratio:8.5/11;border-radius:2px;padding:56px 64px;font-family:Times New Roman,serif;font-size:11px;line-height:1.5;position:relative}.pdf-page .hl{background:oklch(92% .12 90);padding:0 1px}.divider{background:var(--line);height:1px;margin:24px 0}.bar{background:linear-gradient(90deg, var(--line) 0%, var(--paper-2) 50%, var(--line) 100%);border-radius:999px;height:8px}.kbd{font-family:var(--mono);border:1px solid var(--line-2);background:var(--paper);color:var(--muted);border-radius:3px;padding:1px 5px;font-size:10px}.row{align-items:center;gap:12px;display:flex}.col{flex-direction:column;gap:12px;display:flex}.between{justify-content:space-between}.muted{color:var(--muted)}.muted-2{color:var(--muted-2)}.tight{line-height:1.3}.gap-sm{gap:6px}.gap-lg{gap:24px}@media print{.app{grid-template-columns:none!important;height:auto!important;display:block!important;overflow:visible!important}.sidebar,.page-head .actions,.feedback-bar,button{display:none!important}.main{max-width:none!important;height:auto!important;padding:0!important;overflow:visible!important}.main-inner{max-width:none!important;padding:12px 18px!important}body{color:#000;background:#fff}.paper-card{break-inside:avoid;page-break-inside:avoid;border:1px solid #ddd;box-shadow:none!important}a{color:#000;text-decoration:none}a[href]:after{content:" (" attr(href) ")";color:#666;font-size:9pt}.narrative a[href^=\#]:after{content:""}.narrative,.pc-head h3{page-break-after:avoid}}.grow{flex:1}.paper-id-link{font-family:var(--font-mono,ui-monospace, SFMono-Regular, Menlo, monospace);background:var(--paper-2);border:1px solid var(--line-2);color:var(--accent);border-radius:3px;padding:1px 6px;font-size:.92em;text-decoration:none}.paper-id-link:hover{background:var(--accent);color:var(--paper);border-color:var(--accent)}.markdown-body p{margin:0 0 .7em}.markdown-body p:last-child{margin-bottom:0}.markdown-body ul,.markdown-body ol{margin:.4em 0 .7em 1.4em;padding:0}.markdown-body li{margin:.15em 0}.markdown-body strong{color:var(--ink);font-weight:600}.markdown-body code{font-family:var(--font-mono,ui-monospace, SFMono-Regular, Menlo, monospace);background:var(--paper-2);border-radius:3px;padding:1px 5px;font-size:.92em}@keyframes flash-card{0%{box-shadow:0 0 #0000}20%{box-shadow:0 0 0 2px var(--accent)}to{box-shadow:0 0 #0000}}.flash{animation:1.5s ease-out flash-card}@media (width<=1100px){.library-page .library-grid{grid-template-columns:minmax(0,1fr)!important}.library-page .library-grid>aside{position:static!important}}