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th{background:var(--soft);white-space:nowrap;font-weight:600}.data-table td{white-space:nowrap}.math-fig-wrap{text-align:center;margin:12px 0}.math-fig{border:1px solid var(--line);border-radius:8px;max-width:100%}.math-fig-note{color:var(--faint);text-align:left;margin-top:6px;font-size:12px}.tiles{grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:18px 0 4px;display:grid}.tile{border-radius:var(--radius);border:1px solid var(--paper-line);background:var(--white);box-shadow:var(--shadow-small);padding:16px 18px}.tile .num{color:var(--ink);font-family:DM Mono,monospace;font-size:24px;font-weight:500;line-height:1.1;display:block}.tile .lbl{color:var(--ink-soft);margin-top:5px;font-size:11.5px;display:block}.set-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px;margin-top:12px;display:grid}.set-card{border:1px solid var(--paper-line);border-radius:var(--radius);background:var(--white);flex-direction:column;padding:14px 15px;transition:border-color .12s,box-shadow .12s;display:flex}.set-card:hover{border-color:var(--blue);box-shadow:var(--shadow-small)}.set-card-top{justify-content:space-between;align-items:center;gap:8px;display:flex}.set-card-label{color:var(--ink);font-size:15px;font-weight:500}.set-card .btn{margin-top:auto}.set-picker{gap:7px;display:grid}.set-pick-row{border:1px solid var(--paper-line);border-radius:var(--radius);background:var(--white);align-items:center;gap:14px;padding:11px 15px;display:flex}.set-pick-row:hover{border-color:var(--blue)}.set-pick-label{color:var(--ink);min-width:74px;font-size:14px;font-weight:500}.set-pick-row .btn{margin-left:auto}.filter-row{flex-direction:column;gap:9px;margin-bottom:6px;display:flex}.browse-list{gap:8px;display:grid}.browse-item{border:1px solid var(--paper-line);border-radius:var(--radius);background:var(--white);overflow:hidden}.browse-head{cursor:pointer;text-align:left;background:0 0;border:0;align-items:center;gap:9px;width:100%;padding:11px 14px;font-size:13px;display:flex}.browse-head:hover{background:var(--paper)}.browse-title{color:var(--ink-soft);text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0;overflow:hidden}.browse-body{border-top:1px dashed var(--paper-line);padding:4px 15px 15px}.tc-columns{gap:16px;margin:16px 0 6px;display:grid}.tc-col{flex-direction:column;gap:7px;display:flex}.tc-col-head{letter-spacing:.1em;text-transform:uppercase;color:var(--ink-faint);margin-bottom:2px;font-family:DM Mono,monospace;font-size:11px}@media (width>=720px){.tc-columns{grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}}.timer{background:var(--charcoal);color:#fff;border-radius:999px;padding:5px 12px;font-size:13px}.timer.low{background:var(--danger);animation:1s ease-in-out infinite timerpulse}@keyframes timerpulse{0%,to{opacity:1}50%{opacity:.55}}.btn.marked{border-color:var(--gold);color:#7a5c1d;background:var(--gold-soft)}