.evg-comparison-tool {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    max-width: 1200px;
    margin: 0 auto;
    padding: 25px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 5px 25px rgba(0,0,0,0.1);
}

.evg-title {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 30px;
    font-weight: 600;
    font-size: 2.2em;
}

.evg-input-section {
    background: #f8f9fa;
    padding: 25px;
    border-radius: 10px;
    margin-bottom: 30px;
}

.evg-input-group {
    margin-bottom: 20px;
}

.evg-input-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #34495e;
}

.evg-input-group input {
    width: 100%;
    padding: 14px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 16px;
    transition: border 0.3s;
}

.evg-input-group input:focus {
    border-color: #3498db;
    outline: none;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
}

.evg-columns {
    display: flex;
    gap: 30px;
    margin-top: 20px;
}

.evg-col {
    flex: 1;
    padding: 20px;
    border-radius: 8px;
}

.evg-col-ev {
    background: rgba(76, 175, 80, 0.08);
    border: 1px solid #4CAF50;
}

.evg-col-gas {
    background: rgba(244, 67, 54, 0.08);
    border: 1px solid #F44336;
}

#evg-calculate {
    background: #3498db;
    color: white;
    border: none;
    padding: 16px 32px;
    font-size: 18px;
    border-radius: 8px;
    cursor: pointer;
    width: 100%;
    transition: background 0.3s;
    font-weight: 600;
    letter-spacing: 0.5px;
}

#evg-calculate:hover {
    background: #2980b9;
}

.evg-results-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin: 30px 0;
}

.evg-result-card {
    text-align: center;
    padding: 25px 15px;
    border-radius: 10px;
    background: #f8f9fa;
    box-shadow: 0 3px 10px rgba(0,0,0,0.08);
}

.evg-result-card h4 {
    margin-top: 0;
    color: #7f8c8d;
}

.evg-cost {
    font-size: 28px;
    font-weight: 700;
    color: #2c3e50;
}

.evg-savings .evg-cost {
    color: #27ae60;
}

.evg-breakdown {
    margin-top: 40px;
}

.evg-breakdown table {
    width: 100%;
    border-collapse: collapse;
}

.evg-breakdown th, .evg-breakdown td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid #ecf0f1;
}

.evg-breakdown th {
    background: #3498db;
    color: white;
    font-weight: 500;
}

.evg-breakdown tr:nth-child(even) {
    background: #f8f9fa;
}

#evg-chart {
    height: 400px;
    margin-top: 20px;
    border-radius: 8px;
    overflow: hidden;
}

/* Responsive design */
@media (max-width: 768px) {
    .evg-columns {
        flex-direction: column;
    }
    
    .evg-results-grid {
        grid-template-columns: 1fr;
    }
}