.impact-calculator {
    padding: 5rem 5%;
    background-color: var(--background-color);
}

.impact-calculator h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
    display: inline-block;
    width: 100%;
}

.impact-calculator h2::after {
    content: '';
    position: absolute;
    width: 30%;
    height: 3px;
    bottom: -15px;
    left: 35%;
    background-color: var(--accent-color);
}

.calculator-container {
    max-width: 1000px;
    margin: 0 auto;
    background-color: var(--dark-grey);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.inputs {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
}

.input-group {
    flex: 1;
}

.input-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
    color: var(--text-color);
}

.input-group input {
    width: 100%;
    padding: 0.8rem;
    border: 2px solid var(--light-grey);
    border-radius: 6px;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text-color);
    font-size: 1.1rem;
    transition: all 0.3s ease;
}

.input-group input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 10px rgba(255, 0, 0, 0.2);
}

.results {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2rem;
    margin-top: 2rem;
}

.stats {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.stat-item {
    background-color: rgba(255, 255, 255, 0.05);
    padding: 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.stat-item:hover {
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.stat-label {
    display: block;
    font-size: 0.9rem;
    color: var(--text-color);
    opacity: 0.8;
    margin-bottom: 0.3rem;
}

.stat-value {
    display: block;
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--accent-color);
}

.chart-container {
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    padding: 1rem;
    height: 300px;
}

@media screen and (max-width: 768px) {
    .inputs {
        flex-direction: column;
        gap: 1rem;
    }

    .results {
        grid-template-columns: 1fr;
    }

    .chart-container {
        height: 250px;
    }
}