.solution-block[data-astro-cid-7wefmuqv]{margin-top:14px}.solution-trigger[data-astro-cid-7wefmuqv]{min-height:var(--ui-control-md);border-radius:var(--ui-radius);cursor:pointer;color:#fff;font-family:var(--ui-font);text-align:left;background:#1f4f7a;border:1px solid #1f4f7a;padding:0 20px;font-size:14px;font-weight:600;box-shadow:0 1px #1018201a}.solution-trigger[data-astro-cid-7wefmuqv]:hover,.solution-trigger[data-astro-cid-7wefmuqv][aria-expanded=true]{background:#0d3558;border-color:#0d3558;box-shadow:0 6px 16px #0d35582e}.solution-trigger[data-astro-cid-7wefmuqv]:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.solution-content[data-astro-cid-7wefmuqv]{border-left:3px solid color-mix(in srgb, var(--accent-strong) 38%, var(--line));margin-top:16px;padding:2px 0 10px 18px}.solution-content[data-astro-cid-7wefmuqv][hidden],.solution-print-title[data-astro-cid-7wefmuqv]{display:none}@media screen and (pointer:coarse){.solution-trigger[data-astro-cid-7wefmuqv]{min-height:44px}}@media print{.solution-trigger[data-astro-cid-7wefmuqv]{display:none}.solution-content[data-astro-cid-7wefmuqv]{border-left:0;padding-left:0}}.math-scroll-hint[data-astro-cid-k2juobqj]{display:none}.math-scroll-description[data-astro-cid-k2juobqj]{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;padding:0;position:absolute;overflow:hidden}@media screen and (width<=760px),screen and (pointer:coarse) and (width<=1024px){.math-scroll-hint[data-astro-cid-k2juobqj]:not([hidden]){color:var(--muted);pointer-events:none;justify-content:flex-end;margin:-10px 0 12px;line-height:1;display:flex}}.task-info-toggle[data-astro-cid-mpwrocmm]{display:none}.task-extra-info[data-astro-cid-mpwrocmm]{display:contents}@media screen and (width<=760px){.task-info-toggle[data-astro-cid-mpwrocmm]:not([hidden]){min-height:44px;color:var(--accent-strong);font:inherit;text-align:left;cursor:pointer;background:0 0;border:0;align-items:center;gap:6px;margin-top:8px;padding:8px 0;font-size:14px;display:inline-flex}.task-info-toggle[data-astro-cid-mpwrocmm]:hover span[data-astro-cid-mpwrocmm]{text-underline-offset:3px;text-decoration:underline}.task-info-toggle[data-astro-cid-mpwrocmm]:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.task-info-toggle[data-astro-cid-mpwrocmm] svg[data-astro-cid-mpwrocmm]{flex:none}.task-info-toggle[data-astro-cid-mpwrocmm][aria-expanded=true] svg[data-astro-cid-mpwrocmm]{transform:rotate(180deg)}.task-info-toggle[data-astro-cid-mpwrocmm]:not([hidden])[aria-expanded=false]+.task-extra-info[data-astro-cid-mpwrocmm]{display:none}}.task-page[data-astro-cid-mpwrocmm]{--variant-accent:#2c5f8f;--variant-soft:#e8f0f7;max-width:1080px;margin:0 auto}.task-layout[data-astro-cid-mpwrocmm]{grid-template-columns:280px minmax(0,1fr);align-items:start;gap:44px;display:grid}.task-side[data-astro-cid-mpwrocmm]{border-radius:var(--ui-radius);color:#29333d;font-family:var(--ui-font);background:#edf5fc;padding:18px;font-size:16px;line-height:1.45;position:static}.meta-stack[data-astro-cid-mpwrocmm]{border-top:4px solid var(--variant-accent);padding-top:10px}.meta-stack[data-astro-cid-mpwrocmm] p[data-astro-cid-mpwrocmm]{border-bottom:1px solid #dbe9f5;margin:0;padding:9px 0;font-weight:500}.meta-stack[data-astro-cid-mpwrocmm] strong[data-astro-cid-mpwrocmm]{color:#101820;font-weight:700}.topic-section[data-astro-cid-mpwrocmm]{margin-top:28px}.topic-section[data-astro-cid-mpwrocmm] h2[data-astro-cid-mpwrocmm]{color:var(--muted);font-family:var(--ui-font);text-transform:uppercase;margin:0 0 12px;font-size:12px;font-weight:700}.topic-list[data-astro-cid-mpwrocmm]{flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none;display:flex}.topic-list[data-astro-cid-mpwrocmm] a[data-astro-cid-mpwrocmm]{border:1px solid color-mix(in srgb, var(--variant-accent) 28%, var(--line));min-height:30px;color:var(--variant-accent);background:#fff;border-radius:999px;align-items:center;padding:4px 10px;font-size:14px;font-weight:500;text-decoration:none;display:inline-flex}.theme-list[data-astro-cid-mpwrocmm]{color:var(--variant-accent);margin:0;padding:0 0 0 17px;list-style:outside}.theme-list[data-astro-cid-mpwrocmm] li[data-astro-cid-mpwrocmm]{margin:0;padding:0;font-size:13px;line-height:1.5}.theme-list[data-astro-cid-mpwrocmm] a[data-astro-cid-mpwrocmm]{color:var(--variant-accent);background:0 0;border:0;font-size:13px;font-weight:400;line-height:1.5;text-decoration:none}.theme-list[data-astro-cid-mpwrocmm] a[data-astro-cid-mpwrocmm]:hover{color:color-mix(in srgb, var(--variant-accent) 75%, black)}.theme-list[data-astro-cid-mpwrocmm] a[data-astro-cid-mpwrocmm]:focus-visible{outline:2px solid var(--variant-accent);outline-offset:2px}.print-actions[data-astro-cid-mpwrocmm]{border-top:1px solid #dbe9f5;gap:12px;margin-top:28px;padding-top:18px;display:grid}.print-actions[data-astro-cid-mpwrocmm] button[data-astro-cid-mpwrocmm]{min-height:var(--ui-control-sm);border-radius:var(--ui-radius);color:var(--variant-accent);cursor:pointer;font-family:var(--ui-font);background:0 0;border:0;align-items:center;gap:8px;padding:4px 8px;font-size:14px;font-weight:600;display:inline-flex}.print-actions[data-astro-cid-mpwrocmm] svg[data-astro-cid-mpwrocmm]{fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:2px;width:18px;height:18px}.print-actions[data-astro-cid-mpwrocmm] button[data-astro-cid-mpwrocmm]:hover{color:#0d3558}.print-actions[data-astro-cid-mpwrocmm] button[data-astro-cid-mpwrocmm]:focus-visible,.topic-list[data-astro-cid-mpwrocmm] a[data-astro-cid-mpwrocmm]:focus-visible,.report-task-action[data-astro-cid-mpwrocmm] button[data-astro-cid-mpwrocmm]:focus-visible,.source[data-astro-cid-mpwrocmm] a[data-astro-cid-mpwrocmm]:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.competition-tasks[data-astro-cid-mpwrocmm]{white-space:normal;border-top:1px solid #dbe9f5;margin-top:24px;padding-top:18px;display:block}.competition-tasks[data-astro-cid-mpwrocmm] h2[data-astro-cid-mpwrocmm]{color:var(--muted);font-family:var(--ui-font);text-transform:uppercase;margin:0 0 12px;font-size:12px;font-weight:700}.competition-tasks[data-astro-cid-mpwrocmm] ol[data-astro-cid-mpwrocmm]{flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none;display:flex}.competition-tasks[data-astro-cid-mpwrocmm] a[data-astro-cid-mpwrocmm]{width:var(--ui-control-sm);height:var(--ui-control-sm);border:1px solid var(--ui-border);border-radius:var(--ui-radius);color:var(--variant-accent);background:#fff;place-items:center;font-size:14px;font-weight:600;text-decoration:none;display:inline-grid}.competition-tasks[data-astro-cid-mpwrocmm] a[data-astro-cid-mpwrocmm]:hover,.competition-tasks[data-astro-cid-mpwrocmm] a[data-astro-cid-mpwrocmm][aria-current=page]{border-color:var(--variant-accent);background:var(--variant-accent);color:#fff}.competition-tasks[data-astro-cid-mpwrocmm] a[data-astro-cid-mpwrocmm]:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.report-task-action[data-astro-cid-mpwrocmm]{border-top:1px solid #dbe9f5;margin-top:24px;padding-top:18px}.report-task-action[data-astro-cid-mpwrocmm] button[data-astro-cid-mpwrocmm]{min-height:var(--ui-control-sm);border-radius:var(--ui-radius);color:var(--variant-accent);cursor:pointer;font-family:var(--ui-font);background:0 0;border:0;align-items:center;gap:8px;padding:4px 8px;font-size:14px;font-weight:600;display:inline-flex}.report-task-action[data-astro-cid-mpwrocmm] button[data-astro-cid-mpwrocmm]:hover,.report-task-action[data-astro-cid-mpwrocmm] button[data-astro-cid-mpwrocmm]:focus-visible{color:#0d3558;text-underline-offset:4px;text-decoration:underline}@media screen and (pointer:coarse){.print-actions[data-astro-cid-mpwrocmm] button[data-astro-cid-mpwrocmm],.report-task-action[data-astro-cid-mpwrocmm] button[data-astro-cid-mpwrocmm],.topic-list[data-astro-cid-mpwrocmm] a[data-astro-cid-mpwrocmm],.source[data-astro-cid-mpwrocmm] a[data-astro-cid-mpwrocmm]{min-height:44px}.competition-tasks[data-astro-cid-mpwrocmm] a[data-astro-cid-mpwrocmm]{width:44px;height:44px}.theme-list[data-astro-cid-mpwrocmm] a[data-astro-cid-mpwrocmm]{align-items:center;min-height:44px;display:inline-flex}}@media (width>=761px) and (height>=900px){.task-side[data-astro-cid-mpwrocmm]{position:sticky;top:94px}}.task-main[data-astro-cid-mpwrocmm]{min-width:0}.task-main[data-astro-cid-mpwrocmm] h1[data-astro-cid-mpwrocmm]{color:#111820;font-family:var(--ui-font);margin:0 0 22px;font-size:32px;font-weight:700}.task-content[data-astro-cid-mpwrocmm]{color:#121417;font-family:var(--math-font);font-size:18px;line-height:1.78}.task-content[data-astro-cid-mpwrocmm] h2{display:none}.task-content[data-astro-cid-mpwrocmm] h3{color:#111;font-family:var(--math-font);margin:30px 0 12px;font-size:20px}.task-content[data-astro-cid-mpwrocmm] p{max-width:760px}.task-content[data-astro-cid-mpwrocmm] table{border-collapse:collapse;color:#121417;width:auto;max-width:100%;font-family:var(--math-font);margin:16px 0 20px;font-size:18px;line-height:1.4}.task-content[data-astro-cid-mpwrocmm] th,.task-content[data-astro-cid-mpwrocmm] td{text-align:right;vertical-align:middle;border:1px solid #9aaabc;padding:6px 12px}.task-content[data-astro-cid-mpwrocmm] th{background:#edf5fc;font-weight:700}.task-content[data-astro-cid-mpwrocmm] .task-table-grid{grid-template-columns:repeat(3,max-content);gap:18px 36px;margin:16px 0 20px;display:grid}.task-content[data-astro-cid-mpwrocmm] .task-table-grid table{margin:0}.task-content[data-astro-cid-mpwrocmm] .task-table-grid td{text-align:center;min-width:42px;padding:5px 10px}.task-content[data-astro-cid-mpwrocmm] .solution-block{font-family:var(--math-font)}.task-content[data-astro-cid-mpwrocmm] img{background:0 0;border:0;border-radius:0;max-width:100%;height:auto;margin:14px 0 18px;display:block}.source[data-astro-cid-mpwrocmm]{border-top:1px solid var(--line);width:100%;color:var(--muted);font-family:var(--ui-font);margin:42px 0 0;padding-top:16px;font-size:12px;line-height:1.45}.source[data-astro-cid-mpwrocmm] h2[data-astro-cid-mpwrocmm]{font-family:var(--ui-font);text-transform:uppercase;margin-top:0;margin-bottom:6px;font-size:12px;font-weight:700}.source[data-astro-cid-mpwrocmm] p[data-astro-cid-mpwrocmm]{margin:0 0 4px}.source-owner[data-astro-cid-mpwrocmm]{max-width:none;margin-bottom:8px}.source-links[data-astro-cid-mpwrocmm]{flex-wrap:wrap;gap:6px 14px;margin:0;padding:0;list-style:none;display:flex}.source[data-astro-cid-mpwrocmm] a[data-astro-cid-mpwrocmm]{align-items:center;gap:6px;display:inline-flex}.source[data-astro-cid-mpwrocmm] svg[data-astro-cid-mpwrocmm]{fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:2px;width:14px;height:14px}.source-corrections[data-astro-cid-mpwrocmm]{margin-top:14px}.source-corrections[data-astro-cid-mpwrocmm] h2[data-astro-cid-mpwrocmm]{margin-bottom:4px}.source-correction-list[data-astro-cid-mpwrocmm]{margin:0;padding-left:18px}.source-correction-list[data-astro-cid-mpwrocmm] li[data-astro-cid-mpwrocmm]+li[data-astro-cid-mpwrocmm]{margin-top:2px}@media (width<=760px){.source-links[data-astro-cid-mpwrocmm]{flex-direction:column;align-items:flex-start;gap:0}.source-links[data-astro-cid-mpwrocmm] a[data-astro-cid-mpwrocmm]{min-height:28px;padding:3px 0}.source-links[data-astro-cid-mpwrocmm] svg[data-astro-cid-mpwrocmm]{flex:none}.source-links[data-astro-cid-mpwrocmm] span[data-astro-cid-mpwrocmm]{overflow-wrap:anywhere;min-width:0}.task-layout[data-astro-cid-mpwrocmm]{grid-template-columns:1fr;gap:26px}.task-side[data-astro-cid-mpwrocmm]{padding:14px;position:static}.meta-stack[data-astro-cid-mpwrocmm]{grid-template-columns:repeat(2,minmax(0,1fr));column-gap:14px;padding-top:6px;display:grid}.meta-stack[data-astro-cid-mpwrocmm] p[data-astro-cid-mpwrocmm]{min-width:0;padding:8px 0}.topic-section[data-astro-cid-mpwrocmm]{margin-top:18px}.print-actions[data-astro-cid-mpwrocmm]{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 14px;margin-top:18px;padding-top:14px}.print-actions[data-astro-cid-mpwrocmm] button[data-astro-cid-mpwrocmm]{text-align:left;align-items:flex-start;min-width:0;line-height:1.35}.competition-tasks[data-astro-cid-mpwrocmm],.report-task-action[data-astro-cid-mpwrocmm]{margin-top:18px;padding-top:14px}.task-main[data-astro-cid-mpwrocmm] h1[data-astro-cid-mpwrocmm]{font-size:28px}.task-content[data-astro-cid-mpwrocmm] table{display:block;overflow-x:auto}.task-content[data-astro-cid-mpwrocmm] .task-table-grid{grid-template-columns:max-content;gap:16px;max-width:100%;overflow-x:auto}}@media print{body{background:#fff}.site-header,.back-to-tasks,.print-actions[data-astro-cid-mpwrocmm],.competition-tasks[data-astro-cid-mpwrocmm],.report-task-action[data-astro-cid-mpwrocmm]{display:none!important}main{width:100%;padding:0}.task-page[data-astro-cid-mpwrocmm]{max-width:none;margin:0}.task-layout[data-astro-cid-mpwrocmm]{display:block}.task-side[data-astro-cid-mpwrocmm]{color:#111820;page-break-inside:avoid;background:#fff;border-radius:0;padding:0 0 10pt;font-size:9pt;position:static}.meta-stack[data-astro-cid-mpwrocmm]{border-top:1pt solid #9aaabc;flex-wrap:wrap;gap:4pt 10pt;padding-top:0;display:flex}.meta-stack[data-astro-cid-mpwrocmm] p[data-astro-cid-mpwrocmm]{border-bottom:0;padding:3pt 0 0}.topic-section[data-astro-cid-mpwrocmm]{display:none}.task-main[data-astro-cid-mpwrocmm]{margin-top:10pt}.task-main[data-astro-cid-mpwrocmm] h1[data-astro-cid-mpwrocmm]{margin-bottom:7pt;font-size:12pt}.task-content[data-astro-cid-mpwrocmm]{font-size:9pt;line-height:1.3}.task-content[data-astro-cid-mpwrocmm] p{max-width:none}.task-content[data-astro-cid-mpwrocmm] table{margin:8pt 0 10pt;font-size:9pt}.task-content[data-astro-cid-mpwrocmm] th,.task-content[data-astro-cid-mpwrocmm] td{padding:3pt 6pt}.task-content[data-astro-cid-mpwrocmm] .task-table-grid{grid-template-columns:repeat(3,max-content);gap:8pt 14pt;margin:8pt 0 10pt}.task-content[data-astro-cid-mpwrocmm] .task-table-grid td{min-width:24pt;padding:2pt 4pt}.task-content[data-astro-cid-mpwrocmm] img{max-width:100%;margin:6pt 0 8pt}html[data-task-print=problem] .task-content[data-astro-cid-mpwrocmm] .solution-block{display:none!important}html[data-task-print=solution] .task-content[data-astro-cid-mpwrocmm] .solution-content[hidden],html[data-task-print=solution] .task-content[data-astro-cid-mpwrocmm] .solution-print-title{display:block!important}html[data-task-print=solution] .task-content[data-astro-cid-mpwrocmm] .solution-print-title{margin:12pt 0 6pt;font-size:12pt}.source[data-astro-cid-mpwrocmm]{display:none}}