/* Fraction Calculator Styles */
.fraction-calculator {
    background: white;
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow);
}

.fraction-inputs {
    margin-bottom: 1.5rem;
}

.fraction-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.fraction-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    padding: 0.5rem;
    background: var(--light-gray);
    min-width: 80px;
}

.fraction-numerator,
.fraction-denominator {
    width: 60px;
    border: none;
    background: transparent;
    text-align: center;
    font-size: 1.2rem;
    padding: 0.25rem;
    outline: none;
}

.fraction-numerator {
    border-bottom: 1px solid var(--border);
}

.fraction-line {
    width: 100%;
    height: 1px;
    background: var(--text);
    margin: 0.25rem 0;
}

.operation-select {
    font-size: 1.5rem;
    padding: 0.5rem;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    background: white;
    min-width: 60px;
    text-align: center;
}

.equals-sign {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    padding: 0 1rem;
}

.result-fraction {
    min-width: 100px;
}

.fraction-result {
    display: flex;
    flex-direction: column;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.fraction-result .fraction-num,
.fraction-result .fraction-den {
    padding: 0.5rem;
}

.mixed-number-toggle {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin: 0.5rem 0;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.checkbox-label input {
    width: 18px;
    height: 18px;
}

.mixed-input {
    display: none;
}

.mixed-input input {
    width: 60px;
    padding: 0.25rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-align: center;
}

.fraction-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
}

.step-by-step {
    margin: 2rem 0;
}

.steps-container {
    background: var(--light-gray);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-top: 1rem;
}

.step {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.step:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.step-number {
    width: 30px;
    height: 30px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.step-content {
    flex: 1;
}

.step-content p {
    margin: 0;
}

.common-fractions {
    margin-top: 2rem;
}

.fractions-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 0.5rem;
    margin-top: 1rem;
}

.common-fraction {
    background: white;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    padding: 0.75rem;
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.common-fraction:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    transform: translateY(-2px);
}

.fraction-conversions {
    background: white;
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-top: 1.5rem;
    box-shadow: var(--shadow);
}

.conversion-table {
    margin-top: 1rem;
}

.conversion-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border);
}

.conversion-row:last-child {
    border-bottom: none;
}

.fraction-col {
    font-size: 1.2rem;
    font-weight: 600;
    min-width: 40px;
}

.equals {
    color: var(--gray);
}

.decimal-col {
    font-family: monospace;
    min-width: 80px;
}

.percent-col {
    font-weight: 600;
    color: var(--primary);
    min-width: 60px;
}

.operation-examples {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin: 1.5rem 0;
}

.operation-example {
    background: var(--light-gray);
    border-radius: var(--radius);
    padding: 1.5rem;
    text-align: center;
}

.fraction-formula {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin: 1rem 0;
}

.fraction-formula .fraction-row {
    margin: 0;
}

.fraction-formula .operator,
.fraction-formula .equals {
    font-size: 1.5rem;
    font-weight: 700;
}

/* Responsive */
@media (max-width: 992px) {
    .operation-examples {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .fraction-row {
        flex-direction: column;
        align-items: center;
    }
    
    .fractions-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .mixed-number-toggle {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    .fractions-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .conversion-row {
        font-size: 0.9rem;
    }
}