:root{color:#172033;background:#f5f7fa;font:16px/1.5 system-ui,-apple-system,Segoe UI,sans-serif}*,:before,:after{box-sizing:border-box}html,body{max-width:100%;margin:0}body{min-height:100%}a{color:#2457d6}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline-offset:2px;outline:3px solid #2457d6}.site-shell{width:min(1160px,100% - 48px);margin:0 auto;padding-bottom:64px}.site-header{justify-content:space-between;align-items:center;gap:16px;min-height:64px;display:flex}.brand{color:#172033;font-weight:700;text-decoration:none}.lede{max-width:42rem;margin-top:0}h1{margin:16px 0;font-size:36px;line-height:1.2}h2{font-size:1.25rem}.noscript-note{background:#fff;border:1px solid #d5dce5;padding:12px 16px}.content-block{margin-top:40px}@media (width<=767px){h1{font-size:28px}}.builder{grid-template-columns:280px minmax(0,1fr);align-items:start;gap:24px;margin-top:24px;display:grid}.controls,.preview-pane{min-width:0}.controls{background:#fff;border:1px solid #d5dce5;padding:16px}.control-block{border:0;margin:0 0 16px;padding:0}.control-block legend{margin-bottom:8px;font-size:14px;font-weight:700}.table-grid,.control-row{flex-wrap:wrap;gap:8px;display:flex}.chip{color:#172033;cursor:pointer;background:#fff;border:1px solid #d5dce5;justify-content:center;align-items:center;gap:6px;min-width:44px;min-height:44px;padding:0 12px;display:inline-flex}.chip.selected{border-color:#2457d6;box-shadow:inset 0 0 0 1px #2457d6}.chip input{margin:0}.button{color:#172033;min-height:44px;font:inherit;cursor:pointer;background:#fff;border:1px solid #d5dce5;padding:0 16px}.button.primary{color:#fff;background:#2457d6;border-color:#2457d6}.button:disabled{opacity:.5;cursor:not-allowed}.field-error,.previous-banner{color:#8a1f1f;margin:8px 0 0;font-size:14px}.more-options{margin-top:8px}.more-summary{min-height:44px;color:inherit;font:inherit;cursor:pointer;background:0 0;border:0;align-items:center;padding:0;font-weight:600;display:flex}.preview-toolbar{flex-wrap:wrap;justify-content:space-between;gap:12px 16px;margin-bottom:12px;display:flex}.tablist{flex-wrap:wrap;gap:8px;display:flex}.tablist [role=tab]{color:#172033;min-height:44px;font:inherit;cursor:pointer;background:0 0;border:0;border-bottom:2px solid #0000;padding:0 12px}.tablist [role=tab][aria-selected=true]{border-bottom-color:#2457d6;font-weight:700}.preview-actions{flex-wrap:wrap;align-items:center;gap:8px 12px;display:flex}.include-answers{align-items:center;gap:8px;min-height:44px;display:inline-flex}.paper-summary,.preview-status,.print-hint{margin:8px 0 0;font-size:14px}.preview-frame{background:#e8edf3;border:1px solid #d5dce5;padding:16px;overflow:auto;container-type:inline-size}.fit-toggle{min-height:44px;margin-top:8px;display:none}.worksheet-page.mode-screen{box-sizing:content-box;color:#000;background:#fff;width:185mm;max-width:none;min-height:232mm;margin:0 auto;padding:10mm;box-shadow:0 8px 24px #17203314}@container (width<=205mm){.preview-frame:not(.is-full-size) .worksheet-page.mode-screen{zoom:min(1, calc((100cqi - 32px) / 205mm))}}.worksheet-header,.worksheet-footer{color:#000}.worksheet-kicker,.worksheet-footer,.worksheet-meta{margin:0;font-size:12px}.worksheet-title{color:#000;margin:4px 0 8px;font-size:22px}.name-date{flex-wrap:wrap;gap:16px 24px;margin:0 0 12px;display:flex}.problem-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px 12px;margin:0;padding:0;list-style:none;display:grid}.worksheet-page.count-12 .problem-grid{row-gap:18px}.worksheet-page.count-24 .problem-grid{row-gap:12px}.worksheet-page.count-36 .problem-grid{row-gap:8px}.problem-grid li{color:#000;white-space:nowrap;flex-wrap:nowrap;align-items:baseline;gap:4px;min-width:0;font-size:20px;line-height:1.3;display:flex}.problem-blank{border-bottom:1px solid #000;min-width:2.2em;min-height:1em;display:inline-block}.worksheet-footer{justify-content:space-between;gap:12px;margin-top:16px;display:flex}.live-region{min-height:1.5em;margin-top:8px;font-size:14px}@media (width<=767px){.builder{grid-template-columns:minmax(0,1fr)}.preview-toolbar,.preview-actions{flex-direction:column;align-items:stretch}.fit-toggle{align-items:center;display:inline-flex}}@page{margin:10mm}@media screen{.print-root{display:none}}@media print{html,body,.site-shell,main,.builder{color:#000;background:#fff;width:auto;min-height:0;margin:0;padding:0}.site-header,h1,.lede,.noscript-note,.controls,.preview-pane,.content-block{display:none!important}.print-root{width:185mm;display:block;position:static}.worksheet-page.mode-print{color:#000;width:185mm;max-width:185mm;height:232mm;max-height:232mm;box-shadow:none;background:#fff;margin:0;padding:0}.worksheet-page.mode-print+.worksheet-page.mode-print{break-before:page}.worksheet-page.mode-print .problem-grid li{font-size:20px}}