:root{--accent:#2f6f66;--accent-soft:#2f6f6621;--bg:#f7f8f6;--border:#d9ded9;--border-strong:#aeb8b0;--muted:#69736d;--surface:#fff;--surface-strong:#fff;--tag-bg:#eef5f3;--tag-border:#cfe0db;--tag-text:#25544e;--text:#3f4842;--text-strong:#13211a;--sans:Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;color:var(--text);background:var(--bg);font:16px/1.5 var(--sans);font-synthesis:none;letter-spacing:0;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}body{min-width:320px;margin:0}button,input,select{letter-spacing:0}#root{min-height:100svh}.app-shell{min-height:100svh;padding:16px 20px 48px}.topbar{justify-content:space-between;align-items:flex-start;gap:20px;width:100%;max-width:none;margin:0 auto 4px;display:flex}.topbar.compact{align-items:flex-start;min-height:0}.eyebrow{color:var(--muted);letter-spacing:0;text-transform:uppercase;margin:0 0 6px;font-size:13px;font-weight:700}.topbar h1{color:var(--text-strong);margin:0;font-size:24px;line-height:1.12}.topbar p{color:var(--muted);margin:0}.profile-button,.avatar-button,.primary-button,.secondary-button,.text-button,.icon-button,.interest-chip button,.import-actions button,.match-control button,.selected-tags button,.profile-tags button,.suggestions button,.interest-suggestions button,.feed-tabs button{cursor:pointer;font:inherit;border:1px solid #0000}.profile-button{background:var(--surface-strong);border-color:var(--border);color:var(--text-strong);white-space:nowrap;border-radius:8px;min-height:40px;padding:8px 14px}.avatar-button{background:0 0;justify-content:center;align-items:center;padding:0;display:inline-flex}.avatar{color:#fff;background:#2f7d68;border-radius:50%;justify-content:center;align-items:center;width:40px;height:40px;font-size:16px;font-weight:800;line-height:1;display:inline-flex}.avatar.large{width:72px;height:72px;font-size:28px}.profile-button:hover,.avatar-button:hover .avatar,.text-button:hover,.secondary-button:hover,.selected-tags button:hover,.profile-tags button:hover{border-color:var(--accent)}.avatar-button:hover .avatar{box-shadow:0 0 0 3px var(--accent-soft)}.feed-layout{max-width:1000px;margin:0 auto}.feed-tabs{border-bottom:1px solid var(--border);align-items:stretch;gap:4px;margin-bottom:10px;display:flex}.feed-tabs button{color:var(--muted);background:0 0;border:0;border-bottom:3px solid #0000;border-radius:0;justify-content:center;align-items:center;gap:8px;min-height:42px;padding:8px 14px;font-size:15px;font-weight:700;display:inline-flex}.feed-tabs button.is-active{border-bottom-color:var(--accent);color:var(--text-strong)}.feed-tabs button.is-locked{color:var(--muted)}.feed-tab-combo{border-bottom:3px solid #0000;align-items:center;gap:4px;min-height:42px;display:inline-flex}.feed-tab-combo.is-active{border-bottom-color:var(--accent)}.feed-tab-combo>button{color:var(--muted);border-bottom:0;min-height:39px;padding-right:8px}.feed-tab-combo.is-active>button{color:var(--text-strong)}.tab-feed-select{color:var(--muted);text-overflow:ellipsis;border-radius:999px;width:auto;min-width:0;max-width:210px;min-height:26px;padding:3px 26px 3px 10px;font-size:12px;font-weight:800}.locked-label{background:var(--surface);border:1px solid var(--border);color:var(--muted);border-radius:999px;align-items:center;padding:4px 7px;font-size:12px;line-height:1;display:inline-flex}.lock-icon{flex:none;width:16px;height:16px;display:inline-block}.search-panel{background:color-mix(in srgb, var(--bg) 92%, transparent);border:1px solid var(--border);z-index:5;border-radius:8px;padding:12px;position:relative;box-shadow:0 10px 24px #0f172a0f}.search-panel-shell{gap:4px;margin-bottom:6px;display:grid}.search-panel-shell.is-expanded{gap:8px;margin-bottom:12px}.search-panel-toggle{color:var(--muted);cursor:pointer;font:inherit;background:0 0;border:0;justify-self:start;align-items:center;gap:7px;min-height:24px;padding:2px 0;font-size:13px;font-weight:800;display:inline-flex}.search-panel-toggle:hover,.search-panel-toggle:focus-visible{color:var(--accent);outline:none}.search-panel-toggle span:not([aria-hidden]){background:var(--accent-soft);border:1px solid var(--tag-border);color:var(--tag-text);border-radius:999px;justify-content:center;align-items:center;min-width:20px;height:20px;padding:0 6px;font-size:11px;display:inline-flex}.search-grid{grid-template-columns:minmax(240px,1.2fr) minmax(150px,.55fr) minmax(180px,.7fr);align-items:end;gap:10px;display:grid}.field{color:var(--text);text-align:left;gap:6px;display:grid;position:relative}.field span,.profile-match>span{color:var(--muted);font-size:13px;font-weight:700}.field-hint{color:var(--muted);font-size:11px;line-height:1.25}input,select{background:var(--surface);border:1px solid var(--border);color:var(--text-strong);font:inherit;border-radius:8px;outline:none;min-height:36px;padding:8px 10px}select{appearance:none;background-image:linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%);cursor:pointer;background-position:calc(100% - 17px),calc(100% - 11px);background-repeat:no-repeat;background-size:6px 6px,6px 6px;padding-right:32px}.search-footer{justify-content:space-between;align-items:center;gap:12px;margin-top:10px;display:flex}.search-mode{color:var(--muted);text-transform:capitalize;font-size:13px;font-weight:700}.search-actions{justify-content:flex-end;align-items:center;gap:10px;margin-left:auto;display:inline-flex}.search-actions .feed-date-controls{gap:8px;margin-left:0}.search-actions .compact-inline-field{gap:5px}.search-actions .compact-inline-field span{font-size:12px}.search-actions .compact-inline-field select{min-width:112px;min-height:30px;padding-top:4px;padding-bottom:4px;font-size:13px}.compact-button{min-height:32px;padding:6px 12px}input:focus,select:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.suggestions{background:var(--surface-strong);border:1px solid var(--border);z-index:10;border-radius:8px;gap:4px;padding:6px;display:grid;position:absolute;top:calc(100% + 4px);left:0;right:0;box-shadow:0 14px 30px #0f172a1f}.suggestions button{color:var(--text-strong);text-align:left;background:0 0;border-radius:6px;padding:7px 8px}.suggestions button:hover{background:var(--accent-soft)}.match-control{background:var(--surface);border:1px solid var(--border);border-radius:8px;grid-template-columns:1fr 1fr;min-height:40px;display:grid;overflow:hidden}.match-control button{color:var(--muted);background:0 0;padding:8px 11px;font-size:13px;font-weight:800}.match-control button.is-active{background:var(--accent);color:#fff}.selected-tags{flex-wrap:wrap;gap:8px;min-height:0;margin-top:12px;display:flex}.selected-tags button,.tag-chip,.profile-tags button{background:var(--tag-bg);border:1px solid var(--tag-border);color:var(--tag-text);border-radius:999px;align-items:center;gap:6px;min-height:22px;padding:4px 8px;font-size:13px;line-height:1;display:inline-flex}.tag-button{cursor:pointer}.tag-button:hover{border-color:var(--border-strong)}.selected-tags .clear-button{color:var(--muted);background:0 0}.feed-summary{color:var(--muted);justify-content:space-between;margin:10px 2px;font-size:14px;display:flex}.article-list{gap:0;display:grid}.feed-loader{color:var(--muted);text-align:center;min-height:32px;padding:4px 0 8px;font-size:13px;font-weight:700}.article-card{background:var(--surface-strong);border:1px solid var(--border);text-align:left;border-radius:0;margin-top:-1px;padding:10px 126px 10px 14px;position:relative}.article-list>.article-card+.article-card{border-top-width:2px}.article-list>.article-card:first-child{border-radius:5px 5px 0 0;margin-top:0}.article-list>.article-card:last-of-type{border-radius:0 0 5px 5px}.article-list>.article-card:only-of-type{border-radius:5px}.article-card.is-clickable{cursor:pointer}.article-card.is-clickable:focus-visible{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);outline:none}.article-card.is-clickable:hover{border-color:var(--border-strong);z-index:1}.article-card h2{color:var(--text-strong);margin:4px 0 5px;font-size:17px;line-height:1.25}.paper-id{color:var(--text);font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,monospace}.article-meta{color:var(--muted);flex-wrap:wrap;gap:10px;font-size:13px;font-weight:700;line-height:1.35;display:flex}.authors{color:var(--text);margin:0 0 7px;line-height:1.45}.article-card.has-no-tags{padding-bottom:11px}.article-card.has-no-tags .authors{margin-bottom:0}.article-card.has-no-tags .tag-row{display:none}.math-text{color:var(--text);white-space:pre-wrap;line-height:1.65}.tag-row{flex-wrap:wrap;gap:8px;display:flex}.empty-state{background:var(--surface-strong);border:1px dashed var(--border-strong);text-align:center;border-radius:8px;padding:32px}.empty-state h2{color:var(--text-strong);margin:0 0 6px}.empty-state p{color:var(--muted);margin:0}.profile-page{background:var(--surface-strong);border:1px solid var(--border);border-radius:8px;max-width:1000px;margin:0 auto;padding:18px}.paper-page{max-width:1000px;margin:0 auto}.paper-shell{background:var(--surface-strong);border:1px solid var(--border);text-align:left;border-radius:8px;margin-top:12px;padding:22px}.paper-title-block{grid-template-columns:minmax(0,1fr) auto;align-items:start;gap:14px;display:grid}.paper-shell h2{color:var(--text-strong);margin:12px 0 10px;font-size:26px;line-height:1.25}.paper-section{border-top:1px solid var(--border);margin-top:18px;padding-top:16px}.paper-section h3{color:var(--text-strong);margin:0 0 8px;font-size:16px}.paper-section p{color:var(--text);margin:0}.paper-section a{color:var(--accent);overflow-wrap:anywhere}.placeholder-text{color:var(--muted)}.text-button{border-color:var(--border);color:var(--text-strong);background:0 0;border-radius:8px;min-height:36px;padding:7px 11px}.profile-header{align-items:center;gap:16px;margin:20px 0;display:flex}.profile-header h2,.page-heading h2{color:var(--text-strong);margin:0;font-size:24px}.profile-header p,.page-heading p{color:var(--muted);margin:2px 0 0}.profile-actions{grid-template-columns:1fr 1fr;gap:12px;display:grid}.profile-actions button{background:var(--surface);border:1px solid var(--border);color:var(--text-strong);cursor:pointer;font:inherit;text-align:left;border-radius:8px;min-height:72px;padding:14px;font-weight:700}.profile-actions button:hover{border-color:var(--accent)}.profile-footer{justify-content:center;margin-top:18px;display:flex}.logout-button{border:1px solid var(--border);color:var(--muted);cursor:pointer;font:inherit;background:0 0;border-radius:8px;min-height:32px;padding:6px 12px;font-size:13px}.logout-button:hover{border-color:var(--accent);color:var(--text-strong)}.page-heading{margin:18px 0 14px}.interests-form{max-width:680px}.modal-backdrop{z-index:20;background:#0f172a73;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.operation-backdrop{-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);z-index:80}.operation-dialog{background:var(--surface-strong);border:1px solid var(--border);border-radius:8px;align-items:center;gap:16px;width:min(100%,420px);max-width:420px;padding:20px;display:flex;box-shadow:0 24px 70px #0f172a3d}.operation-dialog h2{color:var(--text-strong);margin:0 0 4px;font-size:18px}.operation-dialog p{color:var(--muted);margin:0;font-size:13px}.loading-spinner{border:3px solid color-mix(in srgb, var(--accent) 24%, transparent);border-top-color:var(--accent);border-radius:50%;flex:none;width:28px;height:28px;animation:.7s linear infinite loading-spin;display:inline-block}.loading-spinner.is-small{border-width:2px;width:14px;height:14px}.primary-button .loading-spinner{border-color:#fff #ffffff61 #ffffff61}@keyframes loading-spin{to{transform:rotate(360deg)}}.profile-modal{background:var(--surface-strong);border:1px solid var(--border);border-radius:8px;width:min(100%,680px);max-width:680px;max-height:min(760px,100svh - 40px);padding:20px;overflow:auto;box-shadow:0 24px 70px #0f172a38}.account-modal form{gap:12px;margin-top:14px;display:grid}.account-modal{width:min(100%,500px);max-width:500px}.account-summary{place-items:center;gap:12px;display:grid}.account-summary strong{color:var(--text-strong);font-size:20px}.modal-header{justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:18px;display:flex}.modal-header h2{color:var(--text-strong);margin:0;font-size:24px}.icon-button{background:var(--surface);border-color:var(--border);color:var(--text-strong);border-radius:8px;width:34px;height:34px}.profile-fields{grid-template-columns:1fr 1fr;gap:12px;display:grid}.form-error{color:#b91c1c;margin:12px 0 0;font-size:13px;font-weight:700}.create-account-prompt{background:color-mix(in srgb, #fef2f2 82%, var(--surface));border:1px solid #fecaca;border-radius:8px;margin-top:12px;padding:12px}.create-account-prompt p{color:var(--text-strong);margin:0 0 10px}.profile-match{justify-content:space-between;align-items:center;margin:18px 0 12px;display:flex}.interest-section{gap:8px;display:grid}.interest-section>span{color:var(--muted);font-size:13px;font-weight:700}.optional-field{margin-top:16px}.interest-input{gap:8px;display:grid}.interest-suggestions{flex-wrap:wrap;gap:8px;display:flex}.interest-suggestions button{background:var(--surface);border-color:var(--border);color:var(--text-strong);border-radius:999px;min-height:28px;padding:5px 10px;font-size:13px}.interest-suggestions button:hover{border-color:var(--accent)}.interest-tags{flex-wrap:wrap;gap:10px;min-height:30px;display:flex}.empty-selection{color:var(--muted);margin:0;font-size:13px}.interest-list-label{color:var(--muted);margin:0;font-size:13px;font-weight:700}.interest-chip{background:var(--tag-bg);border:1px solid var(--tag-border);color:var(--tag-text);border-radius:8px;align-items:center;min-height:30px;padding:7px 28px 7px 11px;font-size:13px;line-height:1;display:inline-flex;position:relative}.interest-chip button{background:var(--surface-strong);border-color:var(--tag-border);color:var(--muted);opacity:0;pointer-events:none;border-radius:50%;justify-content:center;align-items:center;width:18px;height:18px;padding:0;font-size:11px;line-height:1;transition:border-color .12s,color .12s,opacity .12s,transform .12s;display:inline-flex;position:absolute;top:-5px;right:-4px;transform:scale(.9)}.interest-chip:hover button,.interest-chip:focus-within button{opacity:1;pointer-events:auto;transform:scale(1)}.interest-chip button:hover{border-color:var(--accent);color:var(--text-strong)}.author-input{margin-top:16px}.author-chip{color:#5a3b6f;background:#f5eff9;border-color:#ddcce8}.author-chip button{border-color:#ddcce8}.author-chip button:hover{border-color:#7d5594}.profile-tags{flex-wrap:wrap;gap:8px;display:flex}.profile-tags button.is-selected{background:var(--accent);border-color:var(--accent);color:#fff}.modal-actions{justify-content:flex-end;gap:10px;margin-top:22px;display:flex}.primary-button,.secondary-button{border-radius:8px;min-height:40px;padding:8px 14px}.primary-button{background:var(--accent);color:#fff}.primary-button.is-pending,.secondary-button.is-pending,.load-more-button:disabled{cursor:wait;justify-content:center;align-items:center;gap:7px;display:inline-flex}.feed-save-button.is-pending{box-shadow:0 0 0 3px var(--accent-soft);background:#155e4b}.primary-button:disabled,.secondary-button:disabled,.danger-button:disabled,.icon-button:disabled,select:disabled{cursor:not-allowed;opacity:.68}.secondary-button{background:var(--surface);border-color:var(--border);color:var(--text-strong)}.topbar-actions,.share-actions,.feedback-row,.article-actions,.bookmark-row,.detail-actions,.panel-section-header{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.topbar-actions{justify-content:flex-end;margin-left:auto}.topbar-title{min-width:0}.site-title-row{flex-wrap:wrap;align-items:center;gap:8px 12px;margin-bottom:2px;display:flex}.feed-home-link{color:inherit;align-items:center;gap:10px;text-decoration:none;display:inline-flex}.feed-home-link:hover,.feed-home-link:focus-visible{color:var(--accent);text-underline-offset:3px;text-decoration:underline}.scicommons-logo{object-fit:contain;width:auto;height:32px;display:block}.last-update-label{color:var(--muted);font-size:12px;font-weight:700}.topbar-feed-row{align-items:center;gap:8px;display:flex}.topbar-feed-path{flex:0 520px;min-width:0;max-width:520px;margin-left:auto}.topbar-feed-path .feed-path-form{grid-template-columns:auto minmax(160px,260px) auto;justify-content:end;align-items:center;gap:8px;display:grid}.feed-path-inline-label{color:var(--muted);white-space:nowrap;align-items:center;gap:6px;font-size:12px;font-weight:800;display:inline-flex}.topbar-feed-path input{min-width:0}.modal-error{margin-top:0}.topbar-actions a,.share-actions a{border:1px solid var(--border);color:var(--text-strong);border-radius:8px;align-items:center;min-height:36px;padding:7px 11px;text-decoration:none;display:inline-flex}.global-error{margin:0 0 12px}.remembered-account-list{gap:8px;display:grid}.remembered-account-list>div{background:var(--surface-strong);border:1px solid var(--border);border-radius:10px;justify-content:space-between;align-items:center;gap:8px;padding:6px;display:flex}.remembered-account-list>div>button:first-child{color:var(--text-strong);text-align:left;background:0 0;border:0;flex:1;justify-content:flex-start;font-weight:800}.feed-workspace{grid-template-columns:minmax(0,1fr) minmax(320px,380px);align-items:start;gap:18px;display:grid}.feed-workspace.panel-collapsed{grid-template-columns:minmax(0,1fr)}.feed-workspace.detail-drawer-open{grid-template-columns:minmax(0,1fr) minmax(320px,380px)}.feed-workspace.panel-collapsed.detail-drawer-open{grid-template-columns:minmax(0,1fr)}.feed-main{grid-area:1/1;min-width:0}.feed-path-form{grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:8px;display:grid}.feed-path-form input{min-width:0}.feed-path-error{margin-top:6px}.feed-path-label{align-items:center;gap:6px;display:inline-flex;position:relative}.help-icon-button{border:1px solid var(--border);color:var(--muted);cursor:pointer;font:inherit;background:0 0;border-radius:50%;justify-content:center;align-items:center;width:19px;height:19px;padding:0;font-size:11px;font-weight:900;display:inline-flex}.help-icon-button:hover,.help-icon-button:focus-visible{border-color:var(--accent);color:var(--accent);outline:none}.help-tooltip-wrap{display:inline-flex;position:relative}.feed-path-help{background:var(--surface-strong);border:1px solid var(--border-strong);color:var(--text);pointer-events:none;white-space:normal;z-index:1000;border-radius:8px;max-width:calc(100vw - 32px);padding:9px 10px;font-size:12px;font-weight:650;line-height:1.45;position:fixed;box-shadow:0 16px 38px #0f172a2e}.feed-side-panel-shell{height:var(--side-panel-height,calc(100vh - 23px));grid-area:1/2;min-width:0;position:sticky;top:18px}.feed-side-panel{border-left:1px solid var(--border);flex-direction:column;gap:18px;height:100%;padding-left:18px;display:flex;overflow:auto}.feed-side-panel>*{flex:none}.article-detail-drawer-shell{background:var(--bg);isolation:isolate;z-index:30;grid-area:1/1;justify-self:end;width:min(460px,100%);min-width:0;position:sticky;top:18px}.article-detail-drawer{background:var(--bg);border-left:1px solid var(--border);gap:12px;max-height:calc(100vh - 120px);padding-left:18px;display:grid;overflow:auto}.drawer-collapse-handle{background:var(--surface-strong);border:1px solid var(--border);color:var(--muted);cursor:ew-resize;font:inherit;touch-action:none;z-index:4;border-left:0;border-radius:0 7px 7px 0;justify-content:center;align-items:center;width:18px;height:62px;padding:0;font-size:20px;display:flex;position:absolute;top:50%;left:0;transform:translateY(-50%)}.drawer-collapse-handle:hover,.drawer-collapse-handle:focus-visible{background:var(--accent-soft);color:var(--accent);outline:none}.side-panel-drawer-handle{cursor:pointer;z-index:5}.side-panel-open-handle{border-left:1px solid var(--border);cursor:pointer;z-index:40;border-right:0;border-radius:7px 0 0 7px;position:fixed;left:auto;right:0}.drawer-header{border-bottom:1px solid var(--border);align-items:center;gap:10px;padding-bottom:10px;display:flex}.drawer-header>div{gap:2px;min-width:0;display:grid}.drawer-header strong{color:var(--text-strong)}.drawer-header 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