.tht-ac-rate{font-weight:700;font-size:11px}.tht-ac-rate--very-high{color:#2c9653}.tht-ac-rate--high{color:#2b81ab}.tht-ac-rate--medium{color:#c18215}.tht-ac-rate--low{color:#d22d2d}.tht-ac-count{color:var(--fg-muted, #888);font-size:10px}.tht-filter-panel{flex-shrink:0;border-bottom:1px solid var(--border)}.tht-filter-toggle{display:flex;align-items:center;gap:6px;width:100%;padding:8px 12px;background:var(--bg-sunken);border:none;cursor:pointer;font-size:14px;font-weight:700;color:var(--fg-base);text-align:left}.tht-filter-toggle:hover{background:var(--bg-elevated)}.tht-filter-toggle__count{font-size:11px;font-weight:400;color:var(--fg-muted)}.tht-filter-toggle__caret{margin-left:auto;font-size:10px;color:var(--fg-muted)}.tht-filter-badge{background:var(--accent);color:#fff;border-radius:999px;padding:0 5px;font-size:10px;font-weight:700;line-height:16px}.tht-filter-body{padding:6px 8px 8px;display:flex;flex-direction:column;gap:8px;background:var(--bg-base)}.tht-filter-section{display:flex;flex-direction:column;gap:4px}.tht-filter-label{font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--fg-muted)}.tht-filter-label-row{display:flex;align-items:center;justify-content:space-between}.tht-filter-clear-link{background:none;border:none;font-size:10px;color:var(--accent);cursor:pointer;padding:0;display:flex;align-items:center}.tht-filter-clear-link:hover{text-decoration:underline}.tht-chips-wrap{display:flex;flex-wrap:wrap;gap:4px}.tht-chip{background:var(--bg-elevated);border:1px solid var(--border);border-radius:4px;padding:2px 7px;font-size:11px;cursor:pointer;color:var(--fg-base);transition:background .1s,border-color .1s;white-space:nowrap}.tht-chip:hover{background:var(--bg-sunken);border-color:var(--accent)}.tht-chip--active{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}.tht-chip--active:hover{background:var(--accent);border-color:var(--accent);color:#fff;opacity:.88}.tht-sort-select{width:100%;background:var(--bg-elevated);border:1px solid var(--border);border-radius:5px;padding:4px 6px;font-size:12px;color:var(--fg-base);outline:none}.tht-sort-select:focus{border-color:var(--accent)}.tht-filter-results{border-top:1px solid var(--border);margin-top:2px}.tht-filter-results__title{display:flex;align-items:center;gap:4px;font-size:11px;font-weight:700;color:var(--fg-muted);padding:4px 2px 2px}.tht-filter-results__list{max-height:320px;overflow-y:auto;display:flex;flex-direction:column;gap:1px}.tht-filter-results__empty{font-size:11px;color:var(--fg-muted);padding:8px 4px;text-align:center}.tht-search-bar{display:flex;align-items:center;gap:4px}.tht-search-bar__icon{color:var(--fg-muted);font-size:11px;flex-shrink:0}.tht-search-bar__input{flex:1;background:var(--bg-elevated);border:1px solid var(--border);border-radius:5px;padding:4px 8px;font-size:12px;color:var(--fg-base);outline:none;min-width:0}.tht-search-bar__input:focus{border-color:var(--accent)}.tht-search-bar__clear{background:none;border:none;cursor:pointer;color:var(--fg-muted);font-size:11px;padding:2px 4px;border-radius:3px}.tht-search-bar__clear:hover{color:var(--fg-base);background:var(--bg-elevated)}.tht-lesson-banner{display:flex;flex-wrap:wrap;align-items:center;gap:4px;padding:6px 10px 8px 28px;background:#f1f9f4;border-bottom:1px solid hsl(142 30% 88%);font-size:11px}:root[data-theme=dark] .tht-lesson-banner{background:#1d2b22;border-bottom-color:#304136}.tht-lesson-banner>i{color:#2c9653;font-size:11px}.tht-lesson-banner>span{color:var(--fg-muted);font-weight:600;font-size:10px;text-transform:uppercase;letter-spacing:.04em}.tht-lesson-link{background:#339958;color:#fff;border:none;border-radius:4px;padding:2px 7px;font-size:11px;cursor:pointer;font-weight:500;transition:background .15s}.tht-lesson-link:hover{background:#257e46}.type-header__icon{display:inline-flex;align-items:center;justify-content:center;width:20px;color:var(--accent);flex-shrink:0;margin-right:2px}.tht-lesson-indicator{font-size:10px;color:#2e9e57;flex-shrink:0;opacity:.8}.tht-cat-badge{display:inline-block;font-size:10px;padding:1px 5px;border-radius:4px;background:var(--bg-elevated);color:var(--fg-muted);border:1px solid var(--border);margin-right:4px;vertical-align:middle}.tht-contest-badge{display:inline-flex;align-items:center;color:#f4b625;margin-left:4px;font-size:11px;vertical-align:middle}.problem-detail__description h5{font-size:.8rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--fg-muted);margin:1.2rem 0 .4rem;padding-bottom:.25rem;border-bottom:1px solid var(--border)}.problem-detail__description pre{background:var(--bg-elevated);border:1px solid var(--border);border-radius:6px;padding:10px 12px;font-size:13px;overflow-x:auto;margin:.4rem 0 .8rem;font-family:Fira Code,Cascadia Code,monospace;line-height:1.5}.problem-detail__description pre code{background:none;padding:0;font-size:inherit}.problem-detail__description p{margin:.5rem 0;line-height:1.7}.problem-detail__description ul,.problem-detail__description ol{padding-left:1.4rem;margin:.5rem 0}.problem-detail__description li{margin:.25rem 0;line-height:1.6}