.decimal-settings-card{gap:24px;display:grid}.decimal-settings-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;display:grid}.decimal-settings-grid.four-columns{grid-template-columns:repeat(4,minmax(0,1fr))}.decimal-settings-grid label{min-width:0;color:var(--text-main);gap:8px;font-size:13px;font-weight:600;display:grid}.decimal-settings-grid input,.decimal-settings-grid select{border:1px solid var(--border);background:var(--surface);width:100%;min-width:0;color:var(--text-main);font:inherit;border-radius:11px;padding:12px 14px}.decimal-settings-grid input:focus,.decimal-settings-grid select:focus{border-color:var(--primary);outline:3px solid var(--focus-ring)}.decimal-fieldset{border:1px solid var(--border);border-radius:14px;min-width:0;margin:0;padding:18px}.decimal-fieldset legend{color:var(--text-main);padding:0 8px;font-weight:600}.decimal-option-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;display:grid}.decimal-option-grid.compact{grid-template-columns:repeat(3,minmax(0,1fr))}.decimal-option-grid label{cursor:pointer;min-width:0}.decimal-option-grid input{opacity:0;pointer-events:none;width:1px;height:1px;position:absolute}.decimal-option-grid label>span{border:1px solid var(--border);background:var(--surface);min-height:62px;color:var(--text-main);border-radius:11px;flex-direction:column;justify-content:center;align-items:flex-start;gap:4px;padding:11px 12px;transition:border-color .16s,background-color .16s,color .16s,transform .16s;display:flex}.decimal-option-grid.compact label>span{text-align:center;align-items:center;min-height:48px}.decimal-option-grid label:hover>span{border-color:var(--primary);transform:translateY(-1px)}.decimal-option-grid input:checked+span{border-color:var(--primary);background:var(--primary-light);color:var(--primary)}.decimal-option-grid input:focus-visible+span{outline:3px solid var(--focus-ring);outline-offset:2px}.decimal-option-grid strong{font-size:13px;font-weight:600}.decimal-option-grid small{color:var(--text-muted);font-size:11px;line-height:1.45}.decimal-number-settings{border:1px solid var(--border);background:var(--surface-soft);border-radius:14px;gap:18px;padding:18px;display:grid}.decimal-number-settings h3{color:var(--text-main);margin:0;font-size:16px;font-weight:600}.decimal-check-options{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;display:grid}.decimal-check-options label{border:1px solid var(--border);background:var(--surface);color:var(--text-main);cursor:pointer;border-radius:10px;align-items:center;gap:9px;padding:12px 14px;display:flex}.decimal-check-options input{accent-color:var(--primary)}@media (width<=800px){.decimal-settings-grid,.decimal-settings-grid.four-columns,.decimal-option-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width<=560px){.decimal-settings-grid,.decimal-settings-grid.four-columns,.decimal-option-grid,.decimal-option-grid.compact,.decimal-check-options{grid-template-columns:1fr}.decimal-fieldset,.decimal-number-settings{padding:14px}}.decimal-worksheet-preview{gap:18px;display:grid}.decimal-worksheet-actions{flex-wrap:wrap;gap:9px;display:flex}.decimal-worksheet-actions button{border:1px solid var(--border);background:var(--surface);color:var(--text-main);font:inherit;cursor:pointer;border-radius:9px;padding:9px 13px;font-weight:600}.decimal-worksheet-actions button:hover,.decimal-worksheet-actions button.is-active{border-color:var(--primary);color:var(--primary)}.decimal-worksheet-actions button.answer-view{border-color:var(--success);color:var(--success)}.decimal-worksheet-pages{gap:24px;display:grid}.decimal-worksheet-paper{box-sizing:border-box;color:#111827;background:#fff;border:1px solid #d8dde7;flex-direction:column;width:min(100%,794px);min-height:1123px;margin:0 auto;padding:48px;display:flex;overflow:visible;box-shadow:0 12px 36px #0f172a1f}.decimal-paper-header{border-bottom:2px solid #111827;margin:0 0 28px;padding:0 0 12px}.decimal-paper-header h2{color:#111827;text-align:center;margin:0 0 18px;font-size:1.8rem;font-weight:700}.decimal-paper-groups{flex:1;align-content:start;gap:34px;display:grid}.decimal-paper-group{min-width:0}.decimal-group-heading{color:#111827;break-after:avoid;page-break-after:avoid;background:#eef2ff;border-left:4px solid #4f46e5;border-radius:6px 12px 12px 6px;justify-content:space-between;align-items:center;gap:16px;margin-bottom:20px;padding:11px 14px;display:flex}.decimal-group-heading>div{min-width:0}.decimal-group-heading h3{color:#312e81;margin:0;font-size:1rem;font-weight:700}.decimal-group-heading p{color:#6366f1;margin:3px 0 0;font-size:.7rem;line-height:1.4}.decimal-group-heading>span{color:#4338ca;background:#fff;border:1px solid #c7d2fe;border-radius:999px;flex:none;padding:4px 8px;font-size:.7rem;font-weight:600}.decimal-paper-question-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 28px;display:grid}.decimal-paper-question{break-inside:avoid;page-break-inside:avoid;grid-template-columns:auto minmax(0,1fr);align-items:start;gap:4px 7px;min-width:0;display:grid}.decimal-question-controls{grid-column:1/-1;justify-content:flex-end;min-width:0;display:flex}.decimal-paper-question.is-wide{grid-column:1/-1}.decimal-question-number{color:#4b5563;white-space:nowrap}.decimal-question-content{min-width:0}.decimal-question-content h3{color:#111827;margin:0 0 8px;font-size:1rem}.decimal-question-content p{color:#111827;margin:0;line-height:1.75}.decimal-question-expression{color:#111827;font-variant-numeric:tabular-nums;flex-wrap:wrap;align-items:center;gap:8px;min-height:30px;display:flex}.decimal-prompt-with-box{color:#111827;line-height:1.9;display:inline}.decimal-inline-answer-box{box-sizing:border-box;color:#111827;font-variant-numeric:tabular-nums;vertical-align:middle;background:#fff;border:1.5px solid #374151;border-radius:4px;justify-content:center;align-items:center;width:32px;min-width:32px;height:32px;margin:0 5px;padding:0;font-size:.95em;font-weight:600;display:inline-flex}.type-comparison .decimal-inline-answer-box{width:32px;min-width:32px;height:32px}.decimal-inline-answer-box.has-answer{color:#dc2626;border-color:#dc2626;width:auto;min-width:42px;padding-inline:7px;font-weight:700}.decimal-paper-answer{color:#dc2626;font-weight:700}.decimal-question-note{color:#6b7280;margin-top:6px;font-size:.72rem;line-height:1.5;display:block}.decimal-question-badge{color:#1d4ed8;background:#eff6ff;border:1px solid #93c5fd;border-radius:999px;margin-bottom:7px;padding:3px 7px;font-size:.68rem;display:inline-flex}.decimal-short-writing-space{min-height:30px}.decimal-word-writing-space{min-height:64px;padding-top:12px}.decimal-writing-space{min-height:44px;padding-top:7px}.decimal-table-wrapper{break-inside:avoid;page-break-inside:avoid;background:#fff;border:1px solid #a5b4fc;border-radius:12px;margin:16px 0;overflow:hidden}.decimal-table-title{color:#3730a3;background:#eef2ff;border-bottom:1px solid #c7d2fe;align-items:center;gap:7px;padding:8px 12px;font-size:.75rem;font-weight:700;display:flex}.decimal-table-title span{font-size:1rem}.decimal-literacy-table{border-collapse:collapse;color:#111827;font-variant-numeric:tabular-nums;width:100%;margin:0}.decimal-literacy-table th,.decimal-literacy-table td{text-align:left;border-bottom:1px solid #dbeafe;border-right:1px solid #dbeafe;padding:10px 13px}.decimal-literacy-table th:last-child,.decimal-literacy-table td:last-child{border-right:0}.decimal-literacy-table tbody tr:last-child td{border-bottom:0}.decimal-literacy-table th{color:#374151;background:#f8fafc;font-size:.78rem;font-weight:700}.decimal-literacy-table td{font-size:.8rem}.decimal-literacy-table tbody tr:nth-child(2n){background:#f8fafc}.decimal-literacy-table th:last-child,.decimal-literacy-table td:last-child{text-align:right}.decimal-literacy-parts{margin:14px 0 0;padding-left:22px}.decimal-literacy-parts li{margin-bottom:8px}.decimal-standard-fraction{text-align:center;vertical-align:middle;grid-template-rows:auto auto;min-width:28px;line-height:1.05;display:inline-grid}.decimal-standard-fraction span:first-child{border-bottom:1.5px solid;padding:0 4px 3px}.decimal-standard-fraction span:last-child{padding:3px 4px 0}.decimal-paper-footer{color:#9ca3af;text-align:center;border-top:1px solid #d1d5db;margin-top:auto;padding-top:12px;font-size:.72rem}@media (width<=700px){.decimal-worksheet-paper{min-height:auto;padding:26px 18px}.decimal-paper-question-grid{grid-template-columns:1fr}.decimal-paper-question.is-wide{grid-column:auto}.decimal-paper-header h2{font-size:1.45rem}}@media print{.decimal-group-heading,.decimal-table-title,.decimal-literacy-table th,.decimal-literacy-table tbody tr:nth-child(2n){print-color-adjust:exact}}.decimal-lock-all-button{background:var(--surface-color,#fff);min-height:42px;color:var(--text-color,#111827);cursor:pointer;border:1px solid #cbd5e1;border-radius:8px;padding:8px 16px}.decimal-lock-all-button.is-locked{color:#dc2626;background:#fef2f2;border-color:#dc2626;font-weight:600}.decimal-lock-all-button:disabled{cursor:not-allowed;opacity:.5}@page{size:A4 portrait;margin:0}@media print{.decimal-worksheet-pages{gap:0}.decimal-worksheet-paper{width:210mm;min-height:297mm;box-shadow:none;break-after:page;page-break-after:always;border:0;margin:0;padding:12.7mm}.decimal-worksheet-paper:last-child{break-after:auto;page-break-after:auto}}