.fleet-calculator-wrapper {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 2rem;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.fleet-calculator-header {
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid #eef2f7;
}

.fleet-calculator-header h2 {
    font-size: 1.8rem;
    color: #2d3748;
    margin: 0;
}

.form-section {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: #f8fafc;
    border-radius: 6px;
}

.form-section h3 {
    color: #4a5568;
    margin-top: 0;
    margin-bottom: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: #4a5568;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #e2e8f0;
    border-radius: 4px;
    background: #fff;
}

.calculate-button {
    background: #4299e1;
    color: white;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 4px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
}

.calculate-button:hover {
    background: #3182ce;
}

.calculation-results {
    display: none;
    margin-top: 2rem;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.result-card {
    background: #ebf8ff;
    padding: 1.5rem;
    border-radius: 6px;
    text-align: center;
}

.result-card h4 {
    color: #2c5282;
    margin: 0 0 0.5rem;
}

.result-card p {
    font-size: 1.5rem;
    font-weight: 700;
    color: #2b6cb0;
    margin: 0;
}