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var(--transition-normal)}.btn-primary[data-v-5438ab0d]{background:linear-gradient(135deg,#4c63d2,#764ba2);color:#fff}.btn-primary[data-v-5438ab0d]:hover{transform:translateY(-2px);box-shadow:0 4px 12px #667eea66}.btn-secondary[data-v-5438ab0d]{background:var(--color-bg-tertiary);color:var(--color-text-primary);border:2px solid var(--color-border-primary)}.btn-secondary[data-v-5438ab0d]:hover{background:var(--color-bg-secondary);border-color:var(--color-border-focus)}.matrix-section[data-v-5438ab0d]{margin-bottom:var(--spacing-2xl)}.matrix-section h3[data-v-5438ab0d]{margin-bottom:var(--spacing-lg);color:var(--color-text-primary);font-size:1.5em}.matrix-display[data-v-5438ab0d]{display:flex;justify-content:center;padding:var(--spacing-xl);background:var(--color-bg-secondary);border-radius:var(--radius-md)}.matrix-wrapper[data-v-5438ab0d]{display:flex;align-items:center;gap:var(--spacing-md)}.matrix-bracket[data-v-5438ab0d]{font-size:4em;font-weight:300;color:var(--color-text-secondary);line-height:1}.matrix[data-v-5438ab0d]{display:flex;flex-direction:column;gap:var(--spacing-sm)}.matrix-row[data-v-5438ab0d]{display:flex;gap:var(--spacing-sm)}.matrix-cell[data-v-5438ab0d]{position:relative}.cell-input[data-v-5438ab0d]{width:80px;padding:var(--spacing-sm);border:2px solid var(--color-border-primary);border-radius:var(--radius-sm);background:var(--color-bg-primary);color:var(--color-text-primary);text-align:center;font-size:16px;transition:all var(--transition-normal)}.cell-input[data-v-5438ab0d]:focus{outline:none;border-color:var(--color-border-focus);box-shadow:0 0 0 3px #667eea1a}.matrix-cell.highlighted .cell-input[data-v-5438ab0d]{background:#667eea1a;border-color:#4c63d2}.results-section[data-v-5438ab0d]{margin-top:var(--spacing-2xl)}.results-section h3[data-v-5438ab0d]{margin-bottom:var(--spacing-lg);color:var(--color-text-primary);font-size:1.5em}.result-card[data-v-5438ab0d]{padding:var(--spacing-xl);background:var(--color-bg-secondary);border-radius:var(--radius-md);margin-bottom:var(--spacing-lg)}.result-label[data-v-5438ab0d]{font-size:14px;color:var(--color-text-secondary);margin-bottom:var(--spacing-sm)}.result-value[data-v-5438ab0d]{font-size:2.5em;font-weight:700;color:#4c63d2;margin:var(--spacing-md) 0}.warning-message[data-v-5438ab0d]{margin-top:var(--spacing-md);padding:var(--spacing-md);background:#e74c3c1a;color:#e74c3c;border-radius:var(--radius-sm);border-left:4px solid #e74c3c}.steps-section[data-v-5438ab0d]{margin-top:var(--spacing-xl);padding:var(--spacing-xl);background:var(--color-bg-secondary);border-radius:var(--radius-md)}.steps-section h4[data-v-5438ab0d]{margin-bottom:var(--spacing-lg);color:var(--color-text-primary)}.steps-list[data-v-5438ab0d]{display:flex;flex-direction:column;gap:var(--spacing-lg)}.step-item[data-v-5438ab0d]{display:flex;gap:var(--spacing-lg);padding:var(--spacing-lg);background:var(--color-bg-primary);border-radius:var(--radius-md);border-left:4px solid #4c63d2}.step-number[data-v-5438ab0d]{min-width:40px;height:40px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#4c63d2,#764ba2);color:#fff;border-radius:50%;font-weight:700;font-size:18px}.step-content[data-v-5438ab0d]{flex:1}.step-description[data-v-5438ab0d]{font-weight:500;color:var(--color-text-primary);margin-bottom:var(--spacing-sm)}.step-formula[data-v-5438ab0d]{margin:var(--spacing-md) 0;padding:var(--spacing-md);background:var(--color-bg-secondary);border-radius:var(--radius-sm)}.step-submatrix[data-v-5438ab0d]{margin:var(--spacing-md) 0}.submatrix-label[data-v-5438ab0d]{font-size:14px;color:var(--color-text-secondary);margin-bottom:var(--spacing-sm)}.matrix-display-small[data-v-5438ab0d]{display:inline-block;margin-left:var(--spacing-md)}.matrix-wrapper-small[data-v-5438ab0d]{display:flex;align-items:center;gap:var(--spacing-xs)}.matrix-small[data-v-5438ab0d]{display:flex;flex-direction:column;gap:2px}.matrix-row-small[data-v-5438ab0d]{display:flex;gap:4px}.matrix-cell-small[data-v-5438ab0d]{min-width:30px;padding:2px 6px;text-align:center;font-size:12px;color:var(--color-text-primary)}.step-value[data-v-5438ab0d]{margin-top:var(--spacing-sm);font-size:1.2em;font-weight:600;color:#4c63d2}@media(max-width:768px){.determinant[data-v-5438ab0d]{padding:var(--spacing-md)}.matrix-wrapper[data-v-5438ab0d]{flex-direction:column}.matrix-bracket[data-v-5438ab0d]{font-size:2em;transform:rotate(90deg)}.cell-input[data-v-5438ab0d]{width:60px;font-size:14px}.result-value[data-v-5438ab0d]{font-size:2em}.step-item[data-v-5438ab0d]{flex-direction:column}.step-number[data-v-5438ab0d]{align-self:flex-start}}:root{--color-bg-primary: var(--color-bgPrimary, #ffffff);--color-bg-secondary: var(--color-bgSecondary, #f5f5f5);--color-bg-tertiary: var(--color-bgTertiary, #f9f9f9);--color-bg-app: var(--color-bgApp, linear-gradient(135deg, #4c63d2 0%, #764ba2 100%));--color-text-primary: var(--color-textPrimary, #333333);--color-text-secondary: var(--color-textSecondary, #666666);--color-text-tertiary: var(--color-textTertiary, #999999);--color-text-white: var(--color-textWhite, #ffffff);--color-title: var(--color-titleColor, var(--color-text-primary));--color-chapter-title: var(--color-chapterTitleColor, var(--color-text-primary));--color-border-primary: var(--color-borderPrimary, #e0e0e0);--color-border-secondary: var(--color-borderSecondary, #dddddd);--color-border-focus: var(--color-borderFocus, #4a90e2);--color-btn-primary: var(--color-btnPrimary, #4a90e2);--color-btn-primary-hover: var(--color-btnPrimaryHover, #357abd);--color-btn-secondary: var(--color-btnSecondary, #6c757d);--color-btn-secondary-hover: var(--color-btnSecondaryHover, #5a6268);--color-btn-danger: var(--color-btnDanger, #dc3545);--color-btn-danger-hover: var(--color-btnDangerHover, #c82333);--color-input-bg: var(--color-inputBg, #ffffff);--color-input-border: var(--color-inputBorder, #dddddd);--color-input-focus-shadow: var(--color-inputFocusShadow, rgba(74, 144, 226, .3));--color-matrix-bg: var(--color-matrixBg, #ffffff);--color-matrix-bracket: var(--color-matrixBracket, #333333);--color-matrix-separator: var(--color-matrixSeparator, #555555);--color-vector-blue: var(--color-vectorBlue, #1e3a8a);--color-shadow-sm: var(--color-shadowSm, rgba(0, 0, 0, .1));--color-shadow-md: var(--color-shadowMd, rgba(0, 0, 0, .15));--color-shadow-lg: var(--color-shadowLg, rgba(0, 0, 0, .2));--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 12px;--spacing-lg: 16px;--spacing-xl: 20px;--spacing-2xl: 30px;--radius-sm: 4px;--radius-md: 6px;--radius-lg: 8px;--transition-fast: .2s;--transition-normal: .3s}.btn{padding:10px 20px;border:none;border-radius:var(--radius-md);font-size:14px;font-weight:500;cursor:pointer;transition:all var(--transition-fast)}.btn:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 2px 8px var(--color-shadow-md)}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.btn:disabled:hover{transform:none;box-shadow:none}.btn-primary{background:var(--color-btn-primary);color:var(--color-text-white)}.btn-primary:hover:not(:disabled){background:var(--color-btn-primary-hover)}.btn-secondary{background:var(--color-btn-secondary);color:var(--color-text-white)}.btn-secondary:hover:not(:disabled){background:var(--color-btn-secondary-hover)}.btn-danger{background:var(--color-btn-danger);color:var(--color-text-white)}.btn-danger:hover:not(:disabled){background:var(--color-btn-danger-hover)}.input-base{padding:var(--spacing-sm);border:1px solid var(--color-input-border);border-radius:var(--radius-sm);background-color:var(--color-input-bg);color:var(--color-text-primary);font-size:14px;transition:all var(--transition-fast)}.input-base:focus{outline:none;border-color:var(--color-border-focus);box-shadow:0 0 0 2px var(--color-input-focus-shadow)}.input-base::placeholder{color:var(--color-text-tertiary)}@keyframes pulse-scale{0%{transform:scale(1)}50%{transform:scale(1.3)}to{transform:scale(1)}}.animate-pulse{animation:pulse-scale .6s ease-in-out}.section-title,.subsection-title,h1.section-title,h2.subsection-title{color:var(--color-title)!important}.chapter-title,h1.chapter-title,h2.chapter-title{color:var(--color-chapter-title)!important}.section-description{border-left:none!important}.math-formula{display:inline-block;margin:0 2px;padding:2px 4px;background:var(--color-bg-primary);border-radius:var(--radius-sm);font-family:Times New Roman,serif;font-style:italic;font-weight:500}@media(max-width:768px){:root{--spacing-xl: 10px;--spacing-2xl: 20px}}